CN112911666B - Cell reselection method and device - Google Patents

Cell reselection method and device Download PDF

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Publication number
CN112911666B
CN112911666B CN202110113477.0A CN202110113477A CN112911666B CN 112911666 B CN112911666 B CN 112911666B CN 202110113477 A CN202110113477 A CN 202110113477A CN 112911666 B CN112911666 B CN 112911666B
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frequency point
cell
signal intensity
target
cell reselection
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CN112911666A (en
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龙迪
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Beijing ByteDance Network Technology Co Ltd
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Beijing ByteDance Network Technology Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/27Transitions between radio resource control [RRC] states
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/30Connection release
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a cell reselection method and device, and relates to the technical field of communication. The method comprises the following steps: receiving a Radio Resource Control (RRC) connection release message; acquiring a target frequency point based on the abnormal frequency point set and the frequency point and the priority of the frequency point carried in the RRC connection release message under the condition that the RRC connection release message carries the frequency point and the priority of the frequency point; and carrying out cell reselection based on the cell corresponding to the target frequency point. The method and the device are used for solving the problem that in the prior art, when the UE performs cell reselection, the UE can be accessed into a cell with poor signal strength. The embodiment of the invention is applied to cell reselection.

Description

Cell reselection method and device
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a cell reselection method and apparatus.
Background
In a long term evolution (Long Term Evolution, LTE) communication system, cell reselection (CellReselection) refers to a process of providing a service signal by monitoring signal strengths of a neighboring cell and a current cell in an Idle (Idle) mode by a User Equipment (UE) to select a cell with the best signal strength.
A cell reselection method for several cells is specified in the related communication protocol, wherein one cell reselection method is as follows: and indicating the frequency point and the priority of the frequency point in an 'idlemodulyityContorlnfo' field, and carrying out cell reselection by the UE according to the priority of the frequency point. However, the network configuration may be unreasonable, in some cases, the signal strength of the cell corresponding to the frequency point with higher priority is poor, at this time, the UE performs cell reselection and accesses a cell with poor signal strength, so that the service data transmission efficiency of the UE is low, the risk of voice call drop is high, and the user experience is affected.
Disclosure of Invention
In view of this, the present invention provides a cell reselection method and apparatus, which are used to solve the problem that in the prior art, a UE may access a cell with poor signal strength when performing cell reselection.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
in a first aspect, an embodiment of the present invention provides a cell reselection method, applied to a user equipment, the method including:
receiving a Radio Resource Control (RRC) connection release message;
acquiring a target frequency point based on the abnormal frequency point set and the priorities of the frequency points carried in the RRC connection release message under the condition that the RRC connection release message carries the frequency points and the priorities of the frequency points;
and carrying out cell reselection based on the cell corresponding to the target frequency point.
As an optional implementation manner of the embodiment of the present invention, the obtaining, based on the abnormal frequency point set and the frequency point carried in the RRC connection release message and the priority of the frequency point, a target frequency point includes:
judging whether each frequency point belongs to an abnormal frequency point set according to the priority in sequence;
if the current frequency point does not belong to the abnormal frequency point set, judging whether the signal strength of the cell corresponding to the current frequency point is smaller than the first threshold signal strength;
And if the signal intensity of at least one cell in the cells corresponding to the current frequency point is greater than or equal to the first threshold signal intensity, determining the current frequency point as the target frequency point.
As an optional implementation manner of the embodiment of the present invention, the method further includes:
and adding the current frequency point to the abnormal frequency point set under the condition that the signal intensity of the cell corresponding to the current frequency point is smaller than the first threshold signal intensity.
As an optional implementation manner of the embodiment of the present invention, the method further includes:
when the current frequency point is added to the abnormal frequency point set, starting a timer corresponding to the current frequency point;
and removing the current frequency point from the abnormal frequency point set when the timer corresponding to the current frequency point is finished.
As an optional implementation manner of the embodiment of the present invention, the cell reselection based on the cell corresponding to the target frequency point includes:
and selecting a cell with the signal intensity greater than or equal to the first threshold signal intensity in the cell corresponding to the target frequency point as a target cell for access.
As an optional implementation manner of the embodiment of the present invention, the cell reselection based on the cell corresponding to the target frequency point includes:
Judging whether an original resident cell meets cell reselection conditions or not, wherein the original resident cell is the last resident cell of the user equipment;
if the original resident cell meets the cell reselection condition, selecting a cell with the signal intensity greater than or equal to the first threshold signal intensity in the cell corresponding to the target frequency point as a target cell for access;
and if the original resident cell does not meet the cell reselection condition, accessing the original resident cell.
As an optional implementation manner of the embodiment of the present invention, the determining whether the original camping cell meets the cell reselection condition includes:
judging whether the signal intensity of the original resident cell is larger than or equal to a second threshold value signal intensity or not and whether the connection release times of the original resident cell are smaller than a preset threshold value or not;
if the signal intensity of the original resident cell is larger than or equal to the second threshold signal intensity and the connection release times of the original resident cell is smaller than the preset threshold, determining that the original resident cell does not meet the cell reselection condition;
and if the signal intensity of the original resident cell is smaller than the second threshold signal intensity or the RRC connection release times of the original resident cell is larger than or equal to the preset threshold, determining that the original resident cell meets the cell reselection condition.
As an optional implementation manner of the embodiment of the present invention, the method further includes:
and adding one to the RRC connection release times of the original resident cell under the condition that the original resident cell does not meet the cell reselection condition.
As an optional implementation manner of the embodiment of the present invention, after selecting, as the target cell, a cell with a signal strength greater than or equal to the first threshold signal strength from cells corresponding to the target frequency point, where the cell is accessed, the method further includes:
judging whether the user equipment is successfully accessed to a cell corresponding to the target frequency point;
if the user equipment does not successfully access the cell corresponding to the target frequency point, cell reselection is performed based on the cell corresponding to the frequency point with the priority being the next priority of the target frequency point in the frequency points which do not belong to the abnormal frequency point;
and if the user equipment successfully accesses the cell corresponding to the target frequency point, resetting the RRC connection release times of the original resident cell.
As an optional implementation manner of the embodiment of the present invention, the method further includes:
and adding the target frequency point to the abnormal frequency point set under the condition that the user equipment does not successfully access the cell corresponding to the target frequency point.
As an optional implementation manner of the embodiment of the present invention, the method further includes:
and after receiving the RRC connection release message, controlling the user equipment to enter an idle mode according to the RRC connection release message.
In a second aspect, an embodiment of the present invention provides a user equipment, including:
a receiving unit configured to receive a radio resource control RRC connection release message;
the processing unit is used for acquiring a target frequency point based on the abnormal frequency point set and the frequency point and the priority of the frequency point carried in the RRC connection release message under the condition that the RRC connection release message carries the frequency point and the priority of the frequency point;
and the access unit is used for carrying out cell reselection based on the cell corresponding to the target frequency point.
As an optional implementation manner of the embodiment of the present invention, the processing unit is specifically configured to sequentially determine, according to priority, whether each frequency point belongs to an abnormal frequency point set; if the current frequency point does not belong to the abnormal frequency point set, judging whether the signal strength of the cell corresponding to the current frequency point is smaller than the first threshold signal strength; and if the signal intensity of at least one cell in the cells corresponding to the current frequency point is greater than or equal to the first threshold signal intensity, determining the current frequency point as the target frequency point.
As an optional implementation manner of the embodiment of the present invention, the processing unit is further configured to add the current frequency point to the abnormal frequency point set when signal strengths of cells corresponding to the current frequency point are all smaller than the first threshold signal strength.
As an optional implementation manner of the embodiment of the present invention, the processing unit is further configured to start a timer corresponding to a current frequency point when the current frequency point is added to the abnormal frequency point set; and removing the current frequency point from the abnormal frequency point set when the timer corresponding to the current frequency point is finished.
As an optional implementation manner of the embodiment of the present invention, the access unit is specifically configured to select, as the target cell, a cell with a signal strength greater than or equal to the first threshold signal strength from cells corresponding to the target frequency point.
As an optional implementation manner of the embodiment of the present invention, the access unit is specifically configured to determine whether an original camping cell meets a cell reselection condition, where the original camping cell is a cell where the ue last camps; if the original resident cell meets the cell reselection condition, selecting a cell with the signal intensity greater than or equal to the first threshold signal intensity in the cell corresponding to the target frequency point as a target cell for access; and if the original resident cell does not meet the cell reselection condition, accessing the original resident cell.
As an optional implementation manner of the embodiment of the present invention, the access unit is specifically configured to determine whether the signal strength of the original camping cell is greater than or equal to a second threshold signal strength, and whether the connection release number of times of the original camping cell is less than a preset threshold; if the signal intensity of the original resident cell is larger than or equal to the second threshold signal intensity and the connection release times of the original resident cell is smaller than the preset threshold, determining that the original resident cell does not meet the cell reselection condition; and if the signal intensity of the original resident cell is smaller than the second threshold signal intensity or the RRC connection release times of the original resident cell is larger than or equal to the preset threshold, determining that the original resident cell meets the cell reselection condition.
As an optional implementation manner of the embodiment of the present invention, the access unit is further configured to add one to the RRC connection release number of the original camping cell when the original camping cell does not meet a cell reselection condition.
As an optional implementation manner of the embodiment of the present invention, the access unit is further configured to determine whether the ue successfully accesses a cell corresponding to the target frequency point after selecting, as the target cell, a cell with a signal strength greater than or equal to the first threshold signal strength from cells corresponding to the target frequency point; if the user equipment does not successfully access the cell corresponding to the target frequency point, cell reselection is performed based on the cell corresponding to the frequency point with the priority being the next priority of the target frequency point in the frequency points which do not belong to the abnormal frequency point; and if the user equipment successfully accesses the cell corresponding to the target frequency point, resetting the RRC connection release times of the original resident cell.
As an optional implementation manner of the embodiment of the present invention, the access unit is further configured to add the target frequency point to the abnormal frequency point set when the ue does not successfully access the cell corresponding to the target frequency point.
As an optional implementation manner of the embodiment of the present invention, the receiving unit is further configured to control, after receiving the RRC connection release message, the ue to enter an idle mode according to the RRC connection release message.
In a third aspect, an embodiment of the present invention provides an electronic device, including: a memory and a processor, the memory for storing a computer program; the processor is configured to perform the cell reselection method according to the first aspect or any optional implementation manner of the first aspect when the computer program is invoked.
In a fourth aspect, an embodiment of the present invention provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the cell reselection method according to the first aspect or any alternative implementation of the first aspect.
In a fifth aspect, embodiments of the present invention provide a computer program product comprising a computer program/instruction which, when executed by a processor, implements the cell reselection method of the first aspect or any alternative embodiment of the first aspect.
In the cell reselection method provided by the embodiment of the invention, when the RRC connection release message is received and carries the frequency point and the priority of the frequency point, the target frequency point is obtained based on the abnormal frequency point set and the frequency point and the priority of the frequency point carried in the RRC connection release message, and the cell reselection is carried out based on the cell corresponding to the target frequency point. Because the embodiment of the invention only performs cell reselection based on the cells corresponding to the frequency points which do not belong to the abnormal frequency point set, the cell reselection method provided by the embodiment of the invention does not perform cell reselection on the cells corresponding to the abnormal frequency points, and therefore, if the frequency points corresponding to the cells with poor signal strength are added to the abnormal frequency point set, the user equipment can be prevented from accessing the cells with poor signal strength during cell reselection.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of a communication system of a cell reselection method according to an embodiment of the present invention;
fig. 2 is one of the step flowcharts of the cell reselection method provided in the embodiment of the present invention;
fig. 3 is a second flowchart of a step of a cell reselection method according to an embodiment of the present invention;
fig. 4 is a third flowchart of a step of a cell reselection method according to an embodiment of the present invention;
fig. 5 is a fourth flowchart of a step of a cell reselection method according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the invention will be more clearly understood, a further description of the invention will be made. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the invention.
The terms first and second and the like in the description and in the claims, are used for distinguishing between synchronous objects and not for describing a particular sequential order of objects. For example, the first correspondence and the second correspondence are for distinguishing different correspondences, not for describing a specific order of correspondences.
In embodiments of the invention, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion. Furthermore, in the description of the embodiments of the present invention, unless otherwise indicated, the meaning of "plurality" means two or more.
Fig. 1 shows a schematic diagram of one possible architecture of a communication system according to an embodiment of the present invention. As shown in fig. 1, the communication system may include: a network-side device 11 (shown in fig. 1 as a base station by way of example) and a user device 12 (shown in fig. 1 as a mobile phone by way of example). The UE 12 is located in cells (shown by dashed lines in fig. 1) corresponding to the plurality of network side devices 11, and when a connection is established between the network side device 11 and the UE 12, the connection between the network side device 11 and the UE 12 is a radio connection established through radio resource control (Radio Resource Control, RRC).
The network side device 11 in the communication system according to the embodiment of the present invention may be a base station, a core network device, a transmitting and receiving node (Transmission and Reception Point, TRP), a relay station, an access point, or the like. The network-side device 11 may be a base transceiver station (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communication, GSM) or code division multiple access (Code Division Multiple Access, CDMA) network, an NB (NodeB) in wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), or an eNB or eNodeB (evolutional NodeB) in LTE. The network side device 11 may also be a wireless controller in the context of a cloud wireless access network (Cloud Radio Access Network, CRAN). The network-side device 11 may also be a base station (gNB) in a 5G communication system or a network-side device in a future evolution network.
The user equipment 12 may be a wireless UE, which may be a device that provides voice and/or other traffic data connectivity to a user, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a UE in a future 5G network or a UE in a future evolved PLMN network, etc. The wireless UE may communicate with one or more core networks via a radio access network (Radio Access Network, RAN), which may be a Mobile Terminal, such as a Mobile phone (or "cellular" phone) and a computer with a Mobile Terminal, e.g., a portable, pocket, hand-held, computer-built-in or car-mounted Mobile device that exchanges voice and/or data with the radio access network, as well as personal communication service (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiation Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistant (Personal Digital Assistant, PDA) and the like, as well as Mobile devices, UE terminals, access terminals, wireless communication devices, terminal units, terminal stations, mobile stations (Mobile), remote stations (Remote stations), remote Terminal units (Subscriber units), subscriber stations (Subscriber Station), user agents (User agents), terminal devices and the like.
The execution body of the cell reselection method provided by the embodiment of the invention can be the user equipment in the communication system, and also can be a functional module and/or a functional entity capable of realizing the cell reselection method in the user equipment in the communication system, and the implementation body can be specifically determined according to actual use requirements, and the embodiment of the invention is not limited.
Based on the foregoing, an embodiment of the present invention provides a cell reselection method, as shown in fig. 2, including the following steps:
s21, receiving a radio resource control connection release (RRC connection release) message.
Specifically, the RRC connection release message in the embodiment of the present invention refers to: a message indicating that the user equipment disconnects the wireless connection with the network side equipment currently establishing the wireless connection through the RRC, or a message indicating that the user equipment disconnects the wireless connection with the cell currently establishing the wireless connection access through the RRC. In the embodiment of the invention, the mode of triggering the network side equipment to send the RRC connection release message to the user equipment is not limited.
Optionally, after receiving the RRC connection release message, the method further includes:
and controlling the user equipment to enter an Idle (Idle) mode according to the RRC connection release message.
S22, under the condition that the RRC connection release message carries the frequency points and the priorities of the frequency points, acquiring the target frequency points based on the abnormal frequency point set and the priorities of the frequency points and the frequency points carried in the RRC connection release message.
Since the relevant communication protocol specifies that the frequency point and the priority of the frequency point are indicated by the "idlemobidigyiyContorlInfo" field, one possible implementation manner of the above step S22 is:
judging whether the RRC connection release message carries an 'idleModeMobiltyContorlInfo' field or not to judge whether the RRC connection release message carries a frequency point and the priority of the frequency point or not;
if the RRC connection release message carries an 'idleModeMobiltyContorlInfo' field, determining that the RRC connection release message carries a frequency point and the priority of the frequency point;
if the RRC connection release message does not carry the 'idleModeMobiltyContorlInfo' field, determining that the RRC connection release message does not carry the frequency point and the priority of the frequency point.
If the RRC connection release message does not carry the priority of the frequency point, the signal strength of the cell corresponding to the frequency point of the cell where the cell was last camped, the signal strength of the cell corresponding to the frequency point of the preset frequency point, and the like is measured, and the cell is reselected when the cell reselection condition is satisfied.
Optionally, the implementation manner of obtaining the target frequency point based on the abnormal frequency point set and the frequency point carried in the RRC connection release message and the priority of the frequency point may be:
and judging whether each frequency point is an abnormal frequency point according to the priority, if the current frequency point is an abnormal frequency point, judging the frequency point of the next priority, and if the current frequency point is not an abnormal frequency point, determining the current frequency point as a target frequency point.
S23, cell reselection is carried out based on the cell corresponding to the target frequency point.
The cell corresponding to the target frequency point in the embodiment of the invention refers to: a cell with the target frequency point as a center frequency. For example: and if the target frequency point is 1850MHz, the cell corresponding to the target frequency point is a cell taking 1850MHz as the center frequency.
In the cell reselection method provided by the embodiment of the invention, when the RRC connection release message is received and carries the frequency point and the priority of the frequency point, the target frequency point is obtained based on the abnormal frequency point set and the frequency point and the priority of the frequency point carried in the RRC connection release message, and the cell reselection is carried out based on the cell corresponding to the target frequency point. Because the embodiment of the invention only performs cell reselection based on the cells corresponding to the frequency points which do not belong to the abnormal frequency point set, the cell reselection method provided by the embodiment of the invention does not perform cell reselection on the cells corresponding to the abnormal frequency points, and therefore, if the frequency points corresponding to the cells with poor signal strength are added to the abnormal frequency point set, the user equipment can be prevented from accessing the cells with poor signal strength during cell reselection.
As an extension and refinement of the foregoing embodiment, an embodiment of the present invention provides a cell reselection method, as shown in fig. 3, including the following steps:
s31, receiving an RRC connection release message.
S32, judging whether the RRC connection release message carries the priority of the frequency point or not.
If the RRC connection release message carries the frequency points and the priorities of the frequency points, judging whether each frequency point belongs to an abnormal frequency point set according to the priorities in sequence.
That is, as shown in fig. 3, when it is determined that the RRC connection release message carries a frequency point and a priority of the frequency point, the frequency point with the highest priority is first used as the current frequency point, and step S33 is performed.
S33, judging whether the current frequency point belongs to an abnormal frequency point set.
Specifically, the current frequency point in the embodiment of the present invention refers to a frequency point that is performing judgment whether the current frequency point belongs to an abnormal frequency point set, and the current frequency point can be a frequency point with any priority corresponding to a frequency point priority carried by an RRC connection release message.
In the above step S33, if the current frequency point belongs to the abnormal frequency point set, it is determined whether the frequency point of the next priority belongs to the abnormal frequency point set.
That is, as shown in fig. 3, if the current frequency point belongs to the abnormal frequency point set, the frequency point of the next priority is taken as the current frequency point, and step S33 is returned to determine whether the current frequency point belongs to the abnormal frequency point set.
For example, the RRC connection release message carries priorities of the frequency point a, the frequency point B, and the frequency point C, where the priority of the frequency point a is higher than the priority of the frequency point B, and the priority of the frequency point B is higher than the priority of the frequency point C, and when it is determined that the frequency point a belongs to an abnormal frequency point set, the step S33 is returned to use the frequency point B as a current frequency point, and whether the frequency point B belongs to the abnormal frequency point set is determined.
In the above step S33, if the current frequency point does not belong to the abnormal frequency point set, the following step S34 is executed.
S34, judging whether the signal strengths of the cells corresponding to the current frequency points are smaller than the first threshold signal strength.
It should be noted that, in the embodiment of the present invention, the first threshold signal strength may be set according to actual requirements, when the service quality requirement on the user equipment is higher, the value of the first threshold signal strength may be set larger, and if the terminal equipment is more desired to be controlled to access the cell corresponding to the frequency point with higher priority, the value of the first threshold signal strength may be set smaller.
In the step S34, if the signal strengths of the cells corresponding to the current frequency point are all smaller than the first threshold signal strength, the following step S35 is executed, and it is determined whether the frequency point of the next priority belongs to the abnormal frequency point set. As shown in fig. 3, when step S35 is performed, the frequency point of the next priority is taken as the current frequency point, and step S33 is returned to determine whether the current frequency point belongs to the abnormal frequency point set.
S35, adding the current frequency point to the abnormal frequency point set.
In the step S34, if the signal strength of at least one cell in the cells corresponding to the current frequency point is greater than or equal to the first threshold signal strength, the following step S36 is performed.
S36, determining the current frequency point as the target frequency point.
S37, cell reselection is carried out based on the cell corresponding to the target frequency point.
Optionally, the step S37 (performing cell reselection based on the cell corresponding to the target frequency point) includes:
and selecting a cell with the signal intensity greater than or equal to the first threshold signal intensity in the cell corresponding to the target frequency point as a target cell for access.
It should be noted that, the number of cells in the cells corresponding to the target frequency point may be one or more than or equal to the first threshold signal strength, so that the number of the target cells may be also more than one, and when the number of the target cells is more than one, one of the cells may be selected for access based on a preset rule. For example: and selecting a cell with the maximum signal intensity in the target cell for access.
As an optional implementation manner of the embodiment of the present invention, the cell reselection method provided by the embodiment of the present invention further includes;
When the current frequency point is added to the abnormal frequency point set, starting a timer corresponding to the current frequency point;
and removing the current frequency point from the abnormal frequency point set when the timer corresponding to the current frequency point is finished.
That is, when the time length of adding any frequency point to the abnormal frequency point set is longer than a certain time length (timer time length), the frequency point is removed from the abnormal frequency point set, so that the frequency point is prevented from belonging to the abnormal frequency point set for a long time.
Optionally, the removing the current frequency point from the abnormal frequency point set may be: when judging whether the current frequency point belongs to the abnormal frequency point set, judging whether the current frequency point is ended in timing, if so, removing the current frequency point from the abnormal frequency point set, and determining that the current frequency point does not belong to the abnormal frequency point set.
Referring to fig. 4, in addition to steps S31 to S37, step S37 (cell reselection based on the cell corresponding to the target frequency point) includes:
s41, judging whether the original resident cell meets the cell reselection condition.
The original resident cell is the cell where the user equipment last resides.
Optionally, the implementation of step S41 (determining whether the original camping cell satisfies the cell reselection condition) may include the following steps a to c.
And a step a of judging whether the signal intensity of the original resident cell is larger than or equal to a second threshold value signal intensity and whether the connection release times of the original resident cell are smaller than a preset threshold value.
It should be noted that, in the foregoing embodiment, the second threshold signal strength and the preset threshold may also be set according to actual requirements, when the service quality requirement on the user equipment is high, the value of the second threshold signal strength and the value of the preset threshold may be set to be larger, and if it is more desired to control the terminal equipment to access the cell corresponding to the frequency point with the higher priority, the value of the second threshold signal strength and the value of the preset threshold may be set to be smaller.
In the step a, if the signal strength of the original camping cell is greater than or equal to the second threshold signal strength and the connection release number of the original camping cell is less than the preset threshold, the following step b is executed, and if the signal strength of the original camping cell is less than the second threshold signal strength or the RRC connection release number of the original camping cell is greater than or equal to the preset threshold, the following step c is executed.
Step b, determining that the original resident cell does not meet the cell reselection condition
And c, determining that the original resident cell meets the cell reselection condition.
In the step S41, if the original camping cell satisfies the cell reselection condition, the following step S42 is executed.
S42, selecting a cell with the signal intensity greater than or equal to the first threshold signal intensity from the cells corresponding to the target frequency point as a target cell for access.
In step S41, if the original camping cell does not satisfy the cell reselection condition, the following steps S43 and S44 are executed.
S43, accessing the original resident cell.
S44, adding one to the RRC connection release times of the original resident cell.
That is, if the signal strength of the original resident cell is greater than or equal to the second threshold signal strength and the connection release frequency of the target cell is less than the preset threshold, the connection release frequency of the original resident cell is increased by one, the user equipment re-accesses the cell where the user equipment resides last time, and the cell reselection flow is ended.
The above embodiment increases the judgment of the signal strength and the RRC connection release times of the original camping cell when performing cell reselection. The judgment of the signal intensity of the original resident cell can avoid switching the resident cell of the user equipment when the signal intensity of the original resident cell is strong, thereby ensuring the service quality of the user equipment. The judgment of the RRC connection release times of the original resident cell can be increased, so that the situation that the network side cannot control the cell corresponding to the frequency point with higher access priority of the user equipment can be avoided. Therefore, the embodiment can avoid that the network side can not control the user equipment to access the cell corresponding to the frequency point with higher priority while ensuring the quality of the server of the user equipment.
As an optional implementation manner of the embodiment of the present invention, after selecting, as the target cell, a cell with a signal strength greater than or equal to the first threshold signal strength from cells corresponding to the target frequency point, where the cell is accessed, the method further includes:
judging whether the user equipment is successfully accessed to a cell corresponding to the target frequency point;
if the user equipment is not successfully accessed into the cell corresponding to the frequency point of the target frequency point, cell reselection is performed based on the cell corresponding to the frequency point with the priority being the next priority of the target frequency point in the frequency points which do not belong to the abnormal frequency point;
and if the user equipment successfully accesses the cell corresponding to the target frequency point, clearing the RRC connection release times of the original resident cell.
Before cell reselection is performed based on a cell corresponding to a frequency point with a priority being the next priority of the target frequency point among the frequency points not belonging to the abnormal frequency point, the frequency point with the priority being the next priority of the target frequency point among the frequency points not belonging to the abnormal frequency point needs to be determined first, and the manner of determining the frequency point is similar to that of determining the target frequency point in the above embodiment, and will not be repeated here.
It should be further noted that after the cell reselection is performed based on the cell corresponding to the frequency point with the priority being the next priority of the target frequency point in the frequency points not belonging to the abnormal frequency point, whether the cell corresponding to the frequency point with the priority being the next priority of the target frequency point in the frequency points not belonging to the abnormal frequency point is successfully accessed is further determined, if not, the frequency point to be subjected to the cell reselection is determined again until the cell is successfully accessed or the corresponding determination is performed based on the cells corresponding to all the frequency points.
Further, the method further comprises: and adding the target frequency point to the abnormal frequency point set under the condition that the user equipment does not successfully access the cell corresponding to the target frequency point.
When the user equipment is not successfully accessed into the cell corresponding to the target frequency point, the frequency point is added to the abnormal frequency point set, so that the cell reselection based on the cell corresponding to the target frequency point again in a short time can be avoided, the invalid cell reselection is avoided, and the cell reselection flow is saved.
Specifically, referring to fig. 5, after step S42 (selecting, as the target cell, a cell with a signal strength greater than or equal to the first threshold signal strength among cells corresponding to the target frequency point for access) on the basis of steps S31 to S44 shown in fig. 4, the method further includes:
s51, judging whether the user equipment is successfully accessed to the cell corresponding to the target frequency point.
Specifically, when the target cell is a plurality of cells, determining whether the user equipment is successfully accessed to the target cell is specifically: and judging whether the user equipment is successfully accessed to any one of the target cells.
In the step S51, if the ue does not successfully access the cell corresponding to the target frequency point, the following step S52 is executed, and cell reselection is performed based on the cell corresponding to the frequency point with the highest priority among the frequency points not belonging to the abnormal frequency point.
S52, adding the target frequency point to the abnormal frequency point set.
Before cell reselection is performed based on a cell corresponding to a frequency point with a higher priority among frequency points not belonging to the abnormal frequency point, it is also necessary to determine a frequency point with a priority being the next priority of the target frequency point among frequency points not belonging to the abnormal frequency point. The implementation manner of determining the frequency point with the priority of the next priority of the target frequency point in the frequency points not belonging to the abnormal frequency point is similar to the manner of acquiring the frequency point (target frequency point) with the highest priority in the frequency points not belonging to the abnormal frequency point in the embodiment. That is, as shown in fig. 5, the step S33 is returned, and the frequency point of the next priority is taken as the current frequency point, whether the current frequency point belongs to the abnormal frequency point set is determined, if the current frequency point belongs to the abnormal frequency point set, whether the frequency point of the next priority belongs to the abnormal frequency point set is determined; if the current frequency point does not belong to the abnormal frequency point set, judging whether the signal strength of the cell corresponding to the current frequency point is smaller than the first threshold signal strength; if the signal intensity of the cell corresponding to the current frequency point is smaller than the first threshold signal intensity, determining that the current frequency point belongs to an abnormal frequency point, and judging whether the frequency point of the next priority belongs to an abnormal frequency point set; if the signal intensity of at least one cell in the cells corresponding to the current frequency point is greater than or equal to the first threshold signal intensity, determining the current frequency point as the frequency point with the highest priority among the frequency points which do not belong to the abnormal frequency point.
In the step S51, if the ue successfully accesses the cell corresponding to the target frequency point, the following step S53 is executed.
S53, the RRC connection release times of the original resident cell are cleared.
Based on the same inventive concept, as an implementation of the above method, the embodiment of the present invention further provides a user equipment, where the embodiment of the user equipment corresponds to the embodiment of the foregoing method, and for convenience of reading, the embodiment of the present invention does not further describe details of the embodiment of the foregoing method one by one, but it should be clear that the user equipment in the embodiment can correspondingly implement all steps of the embodiment of the foregoing method.
Fig. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention, as shown in fig. 6, a user equipment 600 according to the present embodiment includes:
a receiving unit 61 for receiving a radio resource control RRC connection release message;
a processing unit 62, configured to obtain, when the RRC connection release message carries a frequency point and a priority of the frequency point, a target frequency point based on an abnormal frequency point set and the frequency point and the priority of the frequency point carried in the RRC connection release message;
and an access unit 63, configured to perform cell reselection based on the cell corresponding to the target frequency point.
As an optional implementation manner of the embodiment of the present invention, the processing unit 62 is specifically configured to sequentially determine, according to priority, whether each frequency point belongs to an abnormal frequency point set; if the current frequency point does not belong to the abnormal frequency point set, judging whether the signal strength of the cell corresponding to the current frequency point is smaller than the first threshold signal strength; and if the signal intensity of at least one cell in the cells corresponding to the current frequency point is greater than or equal to the first threshold signal intensity, determining the current frequency point as the target frequency point.
As an optional implementation manner of this embodiment of the present invention, the processing unit 62 is further configured to add the current frequency point to the abnormal frequency point set when signal strengths of cells corresponding to the current frequency point are all smaller than the first threshold signal strength.
As an optional implementation manner of the embodiment of the present invention, the processing unit 62 is further configured to start a timer corresponding to the current frequency point when the current frequency point is added to the abnormal frequency point set; and removing the current frequency point from the abnormal frequency point set when the timer corresponding to the current frequency point is finished.
As an optional implementation manner of this embodiment of the present invention, the access unit 63 is specifically configured to select, as the target cell, after accessing a cell with a signal strength greater than or equal to the first threshold signal strength among cells corresponding to the target frequency point.
As an optional implementation manner of the embodiment of the present invention, the access unit 63 is specifically configured to determine whether an original camping cell meets a cell reselection condition, where the original camping cell is a cell where the ue last camps; if the original resident cell meets the cell reselection condition, selecting a cell with the signal intensity greater than or equal to the first threshold signal intensity in the cell corresponding to the target frequency point as a target cell for access; and if the original resident cell does not meet the cell reselection condition, accessing the original resident cell.
As an optional implementation manner of the embodiment of the present invention, the access unit 63 is specifically configured to determine whether the signal strength of the original camping cell is greater than or equal to a second threshold signal strength, and whether the connection release number of times of the original camping cell is less than a preset threshold; if the signal intensity of the original resident cell is larger than or equal to the second threshold signal intensity and the connection release times of the original resident cell is smaller than the preset threshold, determining that the original resident cell does not meet the cell reselection condition; and if the signal intensity of the original resident cell is smaller than the second threshold signal intensity or the RRC connection release times of the original resident cell is larger than or equal to the preset threshold, determining that the original resident cell meets the cell reselection condition.
As an optional implementation manner of this embodiment of the present invention, the access unit 63 is further configured to add one to the RRC connection release number of the original camping cell if the original camping cell does not meet the cell reselection condition.
As an optional implementation manner of the embodiment of the present invention, the access unit 63 is further configured to determine whether the ue successfully accesses the target cell after selecting, as the target cell, a cell with a signal strength greater than or equal to the first threshold signal strength from cells corresponding to the target frequency point; if the user equipment does not successfully access the target cell, cell reselection is performed based on a cell corresponding to a frequency point with the priority of the next priority of the target frequency point in the frequency points which do not belong to the abnormal frequency point; and if the user equipment successfully accesses the target cell, resetting the RRC connection release times of the original resident cell.
As an optional implementation manner of the embodiment of the present invention, the access unit 63 is further configured to add the target frequency point to the abnormal frequency point set when the ue does not successfully access the target cell.
As an optional implementation manner of the embodiment of the present invention, the receiving unit 61 is further configured to control, after receiving the RRC connection release message, the ue to enter an idle mode according to the RRC connection release message.
The user equipment provided in this embodiment may execute the cell reselection method provided in the foregoing method embodiment, and its implementation principle is similar to that of the technical effect, and will not be described herein.
Based on the same inventive concept, the embodiment of the invention also provides electronic equipment. Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, as shown in fig. 7, where the electronic device provided in this embodiment includes: a memory 71 and a processor 72, the memory 71 for storing a computer program; the processor 72 is adapted to perform the steps of the cell reselection method provided by the above method embodiments when a computer program is invoked.
In particular, the memory 71 may be used to store software programs as well as various data. The memory 71 may mainly include a storage program area that may store an operating system, application programs required for at least one function (such as a sound playing function, an image playing function, etc.), and a storage data area; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 71 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 72 is a control center of the electronic device, connects various parts of the entire electronic device using various interfaces and lines, and performs various functions of the electronic device and processes data by running or executing software programs and/or modules stored in the memory 71, and calling data stored in the memory 71, thereby performing overall monitoring of the electronic device. Processor 72 may include one or more processing units.
In addition, it should be understood that the electronic device provided by the embodiment of the present invention may further include: the system comprises a radio frequency unit, a network module, an audio output unit, a receiving unit, a sensor, a display unit, a user receiving unit, an interface unit, a power supply and other components. It will be appreciated by those skilled in the art that the structure of the electronic device described above is not limiting of the electronic device, and that the electronic device may include more or fewer components, or may combine certain components, or may have a different arrangement of components. In the embodiment of the invention, the electronic equipment comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer and the like.
The radio frequency unit may be used for receiving and transmitting signals during the process of receiving and transmitting information or communication, specifically, receiving downlink data from the base station, and then processing the downlink data by the processor 72; and, the uplink data is transmitted to the base station. Typically, the radio frequency units include, but are not limited to, antennas, at least one amplifier, transceivers, couplers, low noise amplifiers, diplexers, and the like. In addition, the radio frequency unit may also communicate with networks and other devices via a wireless communication system.
The electronic device provides wireless broadband internet access to the user through the network module, such as helping the user to send and receive e-mail, browse web pages, access streaming media, and the like.
The audio output unit may convert audio data received by the radio frequency unit or the network module or stored in the memory 71 into an audio signal and output as sound. Also, the audio output unit may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the electronic device. The audio output unit includes a speaker, a buzzer, a receiver, and the like.
The receiving unit is used for receiving audio or video signals. The receiving unit may include a graphics processor (Graphics Processing Unit, GPU) and a microphone, the graphics processor processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed video frames may be displayed on a display unit. The video frames processed by the graphics processor may be stored in memory (or other storage medium) or transmitted via a radio frequency unit or network module. The microphone may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted in case of a phone call mode into a format output that may be transmitted to the mobile communication base station via the radio frequency unit.
The electronic device also includes at least one sensor, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel according to the brightness of ambient light, and the proximity sensor can turn off the display panel and/or the backlight when the electronic device moves to the ear. As one type of motion sensor, the accelerometer sensor can detect the acceleration in all directions (typically three axes), and can detect the gravity and direction when stationary, and can be used for recognizing the gesture of electronic equipment (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; the sensor may further include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., and will not be described herein.
The display unit is used for displaying information input by a user or information provided for the user. The display unit may include a display panel, which may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user receiving unit may be used to receive entered numeric or character information and to generate key signal inputs related to user settings and function control of the electronic device. Specifically, the user receiving unit includes a touch panel and other input devices. Touch panels, also known as touch screens, may collect touch operations on or near a user (e.g., operations of the user on or near the touch panel using any suitable object or accessory such as a finger, stylus, etc.). The touch panel may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device and converts it into touch point coordinates, which are then sent to the processor 72, and receives and executes commands sent from the processor 72. In addition, the touch panel may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel, the user receiving unit may also comprise other input devices. In particular, other input devices may include, but are not limited to, physical keyboards, function keys (e.g., volume control keys, switch keys, etc.), trackballs, mice, levers, and so forth, which are not described in detail herein.
Further, the touch panel may be overlaid on the display panel, and upon detection of a touch operation thereon or thereabout, the touch panel is communicated to the processor 72 to determine the type of touch event, and the processor 72 then provides a corresponding visual output on the display panel based on the type of touch event. In general, the touch panel and the display panel are two independent components for implementing the input and output functions of the electronic device, but in some embodiments, the touch panel and the display panel may be integrated to implement the input and output functions of the electronic device, which is not limited herein.
The interface unit is an interface for connecting an external device with the electronic equipment. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements in the electronic apparatus or may be used to transmit data between the electronic apparatus and the external device.
The electronic device may also include a power source (e.g., a battery) for powering the various components, and optionally the power source may be logically connected to the processor 72 via a power management system that performs functions such as managing charge, discharge, and power consumption.
The embodiment of the invention also provides a computer readable storage medium, and a computer program is stored on the computer readable storage medium, and when the computer program is executed by a processor, the cell reselection method provided by the embodiment of the method is realized.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein.
Computer readable media include both non-transitory and non-transitory, removable and non-removable storage media. Storage media may embody any method or technology for storage of information, which may be computer readable instructions, data structures, program modules, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Disks (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transshipment) such as modulated data signals and carrier waves.
An embodiment of the present invention provides a computer program product, which includes a computer program/instruction, where the computer program/instruction implements the cell reselection method provided in the foregoing method embodiment when executed by a processor.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (12)

1. A method of cell reselection, applied to a user equipment, the method comprising:
receiving a Radio Resource Control (RRC) connection release message;
judging whether each frequency point belongs to an abnormal frequency point set according to the priority in sequence;
if the current frequency point does not belong to the abnormal frequency point set, judging whether the signal strength of the cell corresponding to the current frequency point is smaller than the first threshold signal strength;
if the signal intensity of at least one cell in the cells corresponding to the current frequency point is greater than or equal to the first threshold signal intensity, determining the current frequency point as a target frequency point;
under the condition that the signal intensity of the cell corresponding to the current frequency point is smaller than the first threshold signal intensity, adding the current frequency point into the abnormal frequency point set;
and carrying out cell reselection based on the cell corresponding to the target frequency point.
2. The method according to claim 1, wherein the method further comprises:
when the current frequency point is added to the abnormal frequency point set, starting a timer corresponding to the current frequency point;
and removing the current frequency point from the abnormal frequency point set when the timer corresponding to the current frequency point is finished.
3. The method of claim 1, wherein the performing cell reselection based on the cell corresponding to the target frequency point comprises:
And selecting a cell with the signal intensity greater than or equal to the first threshold signal intensity in the cell corresponding to the target frequency point as a target cell for access.
4. The method of claim 1, wherein the performing cell reselection based on the cell corresponding to the target frequency point comprises:
judging whether an original resident cell meets cell reselection conditions or not, wherein the original resident cell is the last resident cell of the user equipment;
if the original resident cell meets the cell reselection condition, selecting a cell with the signal intensity greater than or equal to the first threshold signal intensity in the cell corresponding to the target frequency point as a target cell for access;
and if the original resident cell does not meet the cell reselection condition, accessing the original resident cell.
5. The method of claim 4, wherein determining whether the original camping cell satisfies a cell reselection condition comprises:
judging whether the signal intensity of the original resident cell is larger than or equal to a second threshold value signal intensity or not and whether the connection release times of the original resident cell are smaller than a preset threshold value or not;
if the signal intensity of the original resident cell is larger than or equal to the second threshold signal intensity and the connection release times of the original resident cell is smaller than the preset threshold, determining that the original resident cell does not meet the cell reselection condition;
And if the signal intensity of the original resident cell is smaller than the second threshold signal intensity or the RRC connection release times of the original resident cell is larger than or equal to the preset threshold, determining that the original resident cell meets the cell reselection condition.
6. The method of claim 5, wherein the method further comprises:
and adding one to the RRC connection release times of the original resident cell under the condition that the original resident cell does not meet the cell reselection condition.
7. The method according to claim 3, wherein after selecting, as the target cell, a cell whose signal strength is greater than or equal to the first threshold signal strength among cells corresponding to the target frequency point, to access, the method further comprises:
judging whether the user equipment is successfully accessed to a cell corresponding to the target frequency point;
if the user equipment does not successfully access the cell corresponding to the target frequency point, cell reselection is performed based on the cell corresponding to the frequency point with the priority being the next priority of the target frequency point in the frequency points which do not belong to the abnormal frequency point;
and if the user equipment successfully accesses the cell corresponding to the target frequency point, clearing the RRC connection release times of the original resident cell.
8. The method of claim 7, wherein the method further comprises:
and adding the target frequency point to the abnormal frequency point set under the condition that the user equipment does not successfully access the cell corresponding to the target frequency point.
9. The method according to any one of claims 1-8, further comprising:
and after receiving the RRC connection release message, controlling the user equipment to enter an idle mode according to the RRC connection release message.
10. A user device, comprising:
a receiving unit configured to receive a radio resource control RRC connection release message;
the processing unit is used for sequentially judging whether each frequency point belongs to an abnormal frequency point set according to the priority, and judging whether the signal strength of a cell corresponding to the current frequency point is smaller than the first threshold signal strength if the current frequency point does not belong to the abnormal frequency point set; if the signal intensity of at least one cell in the cells corresponding to the current frequency point is greater than or equal to the first threshold signal intensity, determining the current frequency point as a target frequency point; under the condition that the signal intensity of the cell corresponding to the current frequency point is smaller than the first threshold signal intensity, adding the current frequency point into the abnormal frequency point set;
And the access unit is used for carrying out cell reselection based on the cell corresponding to the target frequency point.
11. An electronic device, comprising: a memory and a processor, the memory for storing a computer program; the processor is configured to perform the cell reselection method of any of claims 1-9 when the computer program is invoked.
12. A computer readable storage medium, having stored thereon a computer program which, when executed by a processor, implements the cell reselection method of any of claims 1-9.
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WO2019102964A1 (en) * 2017-11-21 2019-05-31 京セラ株式会社 Cell reselection control method, base station, and wireless terminal
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