CN114641043A - Cell reselection method and device - Google Patents

Cell reselection method and device Download PDF

Info

Publication number
CN114641043A
CN114641043A CN202011487201.0A CN202011487201A CN114641043A CN 114641043 A CN114641043 A CN 114641043A CN 202011487201 A CN202011487201 A CN 202011487201A CN 114641043 A CN114641043 A CN 114641043A
Authority
CN
China
Prior art keywords
reselection
cell
frequency point
information
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202011487201.0A
Other languages
Chinese (zh)
Other versions
CN114641043B (en
Inventor
肖天
李�一
刘光海
龙青良
薛永备
程新洲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China United Network Communications Group Co Ltd
Original Assignee
China United Network Communications Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China United Network Communications Group Co Ltd filed Critical China United Network Communications Group Co Ltd
Priority to CN202011487201.0A priority Critical patent/CN114641043B/en
Publication of CN114641043A publication Critical patent/CN114641043A/en
Application granted granted Critical
Publication of CN114641043B publication Critical patent/CN114641043B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

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

Abstract

The invention discloses a cell reselection method and a device, which relate to the technical field of communication and are used for guiding a terminal to be switched from an LTE network to a 5G network, and the method comprises the following steps: determining target reselection information, wherein the target reselection information is located in configuration information of UE (user equipment) or reselection information issued by a base station; the reselection information comprises at least one new air interface NR frequency point and the frequency priority of the at least one NR frequency point, and the reselection information is generated by the base station according to the IMMCI information; according to the frequency priority of at least one NR frequency point, carrying out cell frequency point measurement; and determining the target cell of which the measurement result meets the reselection judgment condition, and reselecting the target cell. 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 device.
Background
With the development of wireless communication networks from Long Term Evolution (LTE) networks to 5th generation mobile communication technology (5G) networks, more and more 5G networks need to be deployed in the coverage of the LTE networks. Therefore, the LTE network needs to guide the 5G terminal within the coverage of the LTE network to preferentially camp in the 5G network by a certain method, which includes: the LTE network broadcasts the terminal in the coverage of the LTE network by carrying the SIB24 message in the SIB1 message of the broadcast message, so as to realize the guidance of the terminal in the reselection from the LTE network to the 5G network. The SIB24 message includes parameters such as a 5GNR (New Radio, New air interface) frequency point, a frequency priority of the 5G NR, a reselection threshold, and reselection decision time.
However, because the existing network also has a large number of terminals of LTE network systems, especially for a large number of terminals of the internet of things, after receiving the SIB24 message in the SIB1 message in the early hardware version of the existing network, the existing network cannot analyze the message, and the fields in the SIB24 message are discarded or the SIB1 message is considered illegal, so that the terminal cannot receive the SIB24 message or the terminal is down; cancellation of the SIB24 message may result in the 5G terminal failing to successfully reselect to the 5G cell.
Disclosure of Invention
The embodiment of the invention provides a cell reselection method and equipment, which are used for guiding UE to reselect a 5G cell.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, a cell reselection method is provided, where the method includes: determining target reselection information, wherein the target reselection information is located in configuration information of UE (user equipment) or reselection information issued by a base station; the reselection information comprises at least one new air interface NR frequency point and the frequency priority of the at least one NR frequency point, and the reselection information is generated by the base station according to the IMMCI information; according to the frequency priority of at least one NR frequency point, carrying out cell frequency point measurement; and determining the target cell of which the measurement result meets the reselection judgment condition, and reselecting the target cell.
In a second aspect, a cell reselection method is provided, the method including: acquiring a new air interface NR frequency point of a 5G cell of a fifth generation mobile communication technology covering User Equipment (UE), the frequency priority of the NR frequency point of the 5G cell and an IMMCI message of a current resident cell of the UE; adjusting the IMMCI message according to the frequency priority of the NR frequency point of the 5G cell and the frequency priority of the NR frequency point of the 5G cell to generate a reselection message; the reselection message comprises a new air interface NR frequency point of the 5G cell and the frequency priority of the NR frequency point of the 5G cell; sending RRC connection release signaling to the UE; the RRC connection release new signaling includes a reselection message.
In a third aspect, a UE is provided, where the UE includes a determining unit, a measuring unit, and a reselecting unit; a determining unit, configured to determine target reselection information, where the target reselection information is located in configuration information of the UE or in a reselection message issued by the base station; the reselection information comprises at least one new air interface NR frequency point and the frequency priority of the at least one NR frequency point, and the reselection information is generated by the base station according to the IMMCI information; the measuring unit is used for measuring the cell frequency point according to the frequency priority of the at least one NR frequency point determined by the determining unit and the frequency priority of the at least one NR frequency point; and determining the target cell of which the measurement result meets the reselection judgment condition, and reselecting the target cell.
In a fourth aspect, a base station is provided, which includes an acquisition unit, a generation unit, and a transmission unit: an obtaining unit, configured to obtain a new air interface NR frequency point of a 5G cell covering a fifth generation mobile communication technology of a user equipment UE, a frequency priority of the NR frequency point of the 5G cell, and an IMMCI message of a current residential cell of the UE; the generating unit is used for adjusting the IMMCI message according to the frequency priority of the NR frequency point of the 5G cell and the frequency priority of the NR frequency point of the 5G cell acquired by the acquiring unit so as to generate a reselection message; the reselection message comprises a new air interface NR frequency point of the 5G cell and the frequency priority of the NR frequency point of the 5G cell; a sending unit, configured to send an RRC connection release signaling to the UE; the RRC connection release new signaling includes the reselection message generated by the generating unit.
In a fifth aspect, there is provided a computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform the cell reselection method as provided in the first or second aspect.
In a sixth aspect, a UE is provided, including: a processor and a memory; wherein the memory is for storing one or more programs, the one or more programs including computer executable instructions, which when run by the UE, the processor executes the computer executable instructions stored by the memory to cause the UE to perform the cell reselection method as in the first aspect.
In a seventh aspect, a base station is provided, including: a processor and a memory; wherein the memory is used to store one or more programs, the one or more programs including computer executable instructions, which when run by the base station, the processor executes the computer executable instructions stored by the memory to cause the base station to perform the cell reselection method of the second aspect.
In an eighth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the cell reselection method of the first or second aspect.
According to the technical characteristics, the UE can acquire target reselection information under the condition of an idle state, and execute cell frequency point measurement according to an NR frequency point and a frequency priority in the target reselection information, and further reselect from a current resident cell to a target cell meeting reselection judgment conditions. The UE can be directed to reselection from the LTE cell to the 5G cell without the base station broadcasting the SIB24 message.
Drawings
Fig. 1 is a schematic structural diagram of a cell reselection system according to an embodiment of the present invention;
fig. 2 is a first flowchart illustrating a cell reselection method according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a cell reselection method according to an embodiment of the present invention;
fig. 4 is a third flowchart illustrating a cell reselection method according to an embodiment of the present invention;
fig. 5 is a fourth flowchart illustrating a cell reselection method according to an embodiment of the present invention;
fig. 6 is a first schematic structural diagram of a UE according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a UE structure according to an embodiment of the present invention;
fig. 9 is a third schematic structural diagram of a UE according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, "/" means "or" unless otherwise specified, for example, a/B may mean a or B. "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Further, "at least one" or "a plurality" means two or more. The terms "first", "second", and the like do not necessarily limit the number and execution order, and the terms "first", "second", and the like do not necessarily limit the difference.
The cell reselection method provided by the embodiment of the invention can be suitable for a cell reselection system of an operator communication network. Fig. 1 shows a schematic structural diagram of the cell reselection system. As shown in fig. 1, a cell reselection system 10 includes a User Equipment (UE) 11 (fig. 1 only shows one UE by way of example, and in an actual application, there may be more UEs), and a base station 12 (fig. 1 only shows one base station by way of example, and in an actual application, there may be more base stations).
The UE11 may be configured to interact with the base station 12 through signaling or messaging, for example, the UE11 may receive a Radio Resource Control (RRC) connection release message sent by the base station 12.
The UE11 may also be configured to perform frequency point measurement according to the NR frequency point and the frequency priority in the reselection information, determine, according to the measurement result, a target cell that meets the reselection decision condition, and reselect to the target cell.
The UE according to the present embodiment is a UE supporting a 5G network.
The base station 12 may be configured to acquire an NR frequency point, a frequency priority, and a reselection decision condition in the SIB24 message of the 5G cell, modify the IMMCI message to generate a reselection message, and send the reselection message to the UE11 by using an RRC connection release message.
It should be noted that the base station according to the embodiment of the present invention may be a base station including an LTE cell and a 5G cell, and the base station includes a base station management device, which is configured to execute the cell reselection method executed by the base station in the embodiment of the present application.
The cell reselection method provided by the embodiment of the invention is described below with reference to the accompanying drawings.
As shown in fig. 2, the cell reselection method provided in the embodiment of the present invention includes steps S201 to S204:
s201, the UE determines target reselection information.
And the target reselection information is located in the configuration information of the UE or in the reselection message issued by the base station. The reselection information comprises at least one new air interface NR frequency point and the frequency priority of the at least one NR frequency point, and the reselection information is generated by the base station according to the IMMCI message.
As a possible implementation manner, the UE may obtain the target reselection information from configuration information of the UE, or obtain the target reselection information from reselection information sent by the base station to the UE.
It should be noted that, when the UE acquires the target reselection information from the configuration information, the target reselection information includes a plurality of NR frequency points. And under the condition that the UE acquires the target reselection information from the reselection information sent by the base station, the number of NR frequency points included in the target reselection information is one.
The specific implementation manner of this step may refer to the subsequent description of this application, and is not described herein again.
S202, the UE measures the cell frequency point according to the frequency priority of the at least one NR frequency point.
As a possible implementation manner, under the condition that the target reselection information is acquired by the UE from the configuration information, the UE determines a frequency priority of at least one NR frequency point from the target reselection information, compares the frequency priority of the at least one NR frequency point with a frequency priority of a cell where the UE currently resides, determines that a frequency with the frequency priority greater than that of the cell where the UE currently resides is a target frequency point, and periodically performs cell frequency point measurement on the determined target frequency point to acquire a measurement result.
It should be noted that the configuration information of the UE may be configured in advance in the UE by a device manufacturer of the UE when the UE leaves the factory. The current resident cell of the UE may be a cell of an LTE network system. The measurement period may be a preset value, and may be set in the UE in advance by an operation and maintenance person of the cell reselection system.
As another possible implementation manner, when the target reselection information is obtained from reselection information sent by the UE from a base station, the UE determines an NR frequency point of a 5G cell and a frequency priority of the NR frequency point from the target reselection information, and periodically performs cell frequency point measurement on the NR frequency point of the 5G cell to obtain a measurement result when the frequency priority of the NR frequency point is greater than the frequency priority of a currently camped cell.
It should be noted that the coverage of the 5G cell includes the UE, that is, the 5G cell and the current camping cell of the UE have the same coverage, that is, the UE is in the same coverage.
In this step, the method for the UE to perform the cell frequency point measurement may specifically refer to the prior art, and is not described herein again.
S203, the UE determines the target cell of which the measurement result meets the reselection judgment condition.
As a possible implementation manner, when the target reselection information is obtained from the configuration information by the UE, the UE determines, according to the measurement result, a cell that meets the reselection decision condition from cells corresponding to the measured multiple target frequency points as a target cell.
It should be noted that the reselection decision condition is a preset decision condition, and may be stored in the configuration information of the UE in advance. The reselection decision condition may also be obtained by the UE from a broadcast message of the base station.
The specific implementation manner of this step may also refer to the prior art, and is not described herein again.
As another possible implementation manner, when the target reselection information is obtained by the UE from reselection information sent by the base station, the UE determines whether the measurement result of the 5G cell meets the reselection decision condition according to the measurement result of performing cell frequency point measurement on the 5G cell. And if the measurement result of the 5G cell meets the reselection judgment condition, the UE determines that the 5G cell is the target cell.
It should be noted that the reselection decision condition may also be obtained by the UE from reselection information sent by the base station to the UE.
The specific content of the reselection decision condition in the embodiment of the present invention may refer to the prior art, and is not described in detail herein.
And S204, the UE reselects to the target cell.
As a possible implementation manner, after determining the target cell, the UE reselects from the currently camped cell to the target cell.
The specific implementation manner of this step may refer to the prior art, and is not described herein again.
In one design, as shown in fig. 3, S201 provided in the embodiment of the present invention may specifically include the following S2011-S2013.
S2011, the UE acquires the configuration information.
As a possible implementation, the UE obtains configuration information of the UE from a memory of the UE.
It should be noted that the configuration information of the UE may be stored in the UE in advance by a manufacturer when the device leaves the factory, or the configuration information of the UE may be updated by the manufacturer of the device in a software system updating manner after the UE leaves the factory.
S2012, the UE determines that the configuration information includes first reselection information.
The first reselection information comprises a new air interface NR frequency point list and a frequency priority list. The NR frequency point list comprises at least one NR frequency point, and the frequency priority list comprises the frequency priority corresponding to each NR frequency point.
As a possible implementation manner, after acquiring the configuration information, the UE determines whether the configuration information includes a preset NR frequency point list and a frequency priority. And if the configuration information of the UE comprises a preset NR frequency point list and a frequency priority, the UE determines that the configuration information summary comprises first reselection information.
It should be noted that the first reselection information may further include a reselection decision condition.
S2013, the UE determines that the first reselection information is the target reselection information and obtains the target reselection information.
As a possible implementation manner, the UE acquires the first reselection information and determines the acquired first reselection information as the target reselection information when it is determined that the configuration information of the UE includes the first reselection information.
It can be understood that, through the above technical features, the UE can obtain the frequency priorities of a plurality of NR frequency points through its own configuration information, and then can perform cell frequency point measurement on the plurality of NR frequency points when in an idle state.
In a design, in order to enable the UE to acquire a frequency point of a 5G cell where the UE is located, as shown in fig. 4, the cell reselection method provided in the embodiment of the present invention may further include the following steps S301 to S306.
S301, a base station acquires a new air interface NR frequency point of a 5G cell of a fifth generation mobile communication technology covering user equipment UE, the frequency priority of the NR frequency point of the 5G cell, and IMMCI information of a current resident cell of the UE.
As a possible implementation manner, after the UE switches from the connected state to the idle state within the coverage area of the base station, the base station determines an NR frequency point of a 5G cell that can cover the UE and a frequency priority of the NR frequency point. Meanwhile, the base station acquires the IMMCI message of the current resident cell from the RRC connection release signaling of the current resident cell of the UE.
It should be noted that the base station may obtain the NR frequency point of the 5G cell and the frequency priority of the NR frequency point from the SIB24 message of the current camping cell, or may directly obtain the NR frequency point and the frequency priority of the 5G cell from a management device of the base station.
S302, the base station adjusts the IMMCI message according to the NR frequency point of the 5G cell and the frequency priority of the NR frequency point of the 5G cell to generate a reselection message.
And the reselection message comprises a new air interface NR frequency point of the 5G cell and the frequency priority of the NR frequency point of the 5G cell.
As a possible implementation manner, the base station modifies the freqprioritylnr-r 15 field of the IMMCI message, and adds the obtained frequency priorities of the NR frequency point and the NR frequency point of the 5G cell into the IMMCI message to generate a reselection message.
It should be noted that the modification content of the IMMCI message by the base station at least includes carrier Freq-r15, cell Reselection Priority-r15, cell Reselection Sub Priority-r15 cells, and threshX-High-r15, threshX-Low-r15, q-RxLev Min-r15, white CellList-r15, t-Reselection NR-r15 cells.
In one case, a reselection decision condition may also be included in the reselection message.
In another case, the reselection message includes all frequency points in the SIB24 message and the frequency priorities of all frequency points, and in this case, after the UE receives the reselection message, even if the SIB24 message is not received, the cell frequency point measurement may be performed according to the frequency priorities of all frequency points in the reselection message and all frequency points.
S303, the base station sends RRC connection release signaling to the UE.
Wherein, the RRC connection release new signaling includes a reselection message.
As a possible implementation manner, after the UE is in an idle state and moves to a coverage area of the 5G network, the base station sends an RRC connection release signaling carrying a reselection message to the UE.
Correspondingly, the UE receives an RRC connection release signaling sent by the base station.
S304, the UE judges whether the received RRC connection release signaling comprises a reselection message.
S305, if the RRC connection release signaling comprises the reselection message, the UE acquires second reselection information in the reselection message.
The second reselection information includes an NR frequency point of a 5G cell and a frequency priority of the 5G cell, and one 5G cell is a cell covering the UE.
As a possible implementation scenario, in a case that the UE determines that the RRC connection release signaling includes the reselection message, the UE acquires the reselection message in the RRC connection release signaling, and acquires the second reselection information from the reselection message.
S306, the UE determines the second reselection information as the target reselection information.
It should be noted that, in the practical application process, the steps S303 to S306 in the embodiment of the present invention may also be used as a specific implementation manner of the step S201.
In one design, especially when the UE can obtain the first reselection information and the second reselection information simultaneously, in order to obtain the target reselection information, as shown in fig. 5, the cell reselection method provided in this embodiment of the present invention further includes the following steps S401 to S404:
s401, the UE judges whether first reselection information exists in the configuration information.
For a specific implementation of this step, reference may be made to the specific description of S2011-S2012 in the embodiment of the present invention, and details are not repeated here.
S402, under the condition that the configuration information includes first reselection information, the UE judges whether an RRC connection release instruction sent by the base station is received, wherein the RRC connection release instruction includes reselection information.
As a possible implementation manner, in the embodiment of the present invention, when it is determined that the configuration information includes the first reselection information, it is determined whether a received RRC connection release instruction includes a reselection message.
The specific implementation manner of this step may refer to the specific description in S301 to S304 provided in the embodiment of the present invention, and is not described herein again.
S403, if an RRC connection release instruction sent by the base station is received and the RRC connection release instruction comprises a reselection message, the UE acquires second reselection information in the reselection message.
The second reselection information comprises an NR frequency point of a 5G cell of the fifth generation mobile communication technology and a frequency priority of the 5G cell, and one 5G cell is a cell covering the UE.
The specific implementation manner of this step may refer to the specific description in S305 provided in the embodiment of the present invention, and details are not described here again.
S404, the UE determines that the second reselection information is the target reselection information.
It can be understood that, in the above embodiment, when the UE performs cell frequency measurement, the priority of the second reselection information is higher than the priority of the first reselection information, that is, the UE preferentially performs cell frequency measurement using the second reselection information in the reselection message.
In some embodiments, if the base station does not cancel the transmission of the SIB1 message carrying the SIB24 message, the cell reselection method provided in this embodiment further includes S405 to S407 after S402.
S405, if an RRC connection release instruction sent by the base station is received and the RRC connection release instruction comprises reselection information, the UE judges whether an SIB24 message is received or not, and the SIB24 message comprises third reselection information.
And the third reselection information comprises a new air interface NR frequency point list and a frequency priority list. The NR frequency point list comprises at least one NR frequency point, and the frequency priority list comprises the frequency priority corresponding to each NR frequency point.
And S406, under the condition that the SIB24 message is received by the UE and the SIB24 message comprises the third reselection information, the UE determines the third reselection information as the target reselection information.
S407, when the SIB24 message is not received by the UE, or when the SIB24 message is received by the UE and the third reselection information is not included in the SIB24 message, the UE determines the second reselection information as the target reselection information.
It can be understood that, by using the foregoing S405-S407 in the embodiment of the present invention, when the UE performs the cell frequency measurement, the priority of the third reselection information is higher than the priority of the second reselection information, and when the third reselection information is not received, the second reselection information is preferentially selected to execute the cell frequency vehicle. And in the case of receiving the third reselection information, preferentially selecting the third reselection information in the SIB24 message to perform cell frequency point measurement.
According to the technical characteristics, the UE can acquire target reselection information under the condition of an idle state, and execute cell frequency point measurement according to an NR frequency point and a frequency priority in the target reselection information, and further reselect from a current resident cell to a target cell meeting reselection judgment conditions. The UE can be directed to reselection from the LTE cell to the 5G cell without the base station broadcasting the SIB24 message.
The above description mainly introduces the solutions provided by the embodiments of the present invention from the perspective of methods. To implement the above functions, it includes hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. 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 invention.
The embodiment of the present invention may perform the functional module division on the UE according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
Fig. 6 is a schematic structural diagram of a UE according to an embodiment of the present invention. As shown in fig. 6, the UE11 is configured to perform the cell reselection method shown in fig. 2. The UE11 includes a determination unit 111, a measurement unit 112, and a reselection unit 113.
A determining unit 111, configured to determine target reselection information, where the target reselection information is located in configuration information of the UE or in a reselection message issued by the base station. The reselection information comprises at least one new air interface NR frequency point and the frequency priority of the at least one NR frequency point, and the reselection information is generated by the base station according to the IMMCI message.
And the measuring unit 112 is configured to perform cell frequency point measurement according to the frequency priority of the at least one NR frequency point determined by the determining unit 111.
And determining the target cell of which the measurement result meets the reselection judgment condition, and reselecting the target cell.
Optionally, as shown in fig. 6, the determining unit 111 is specifically configured to:
and acquiring configuration information, and determining that the configuration information comprises first reselection information, wherein the first reselection information comprises a new air interface NR frequency point list and a frequency priority list. The NR frequency point list comprises at least one NR frequency point, and the frequency priority list comprises the frequency priority corresponding to each NR frequency point.
And determining the first reselection information as target reselection information, and acquiring the target reselection information.
Optionally, as shown in fig. 6, the determining unit 111 and the UE further include an obtaining unit 114.
An obtaining unit 114, configured to, if the configuration information includes the first reselection information, receive an RRC connection release instruction sent by the base station, and the RRC connection release instruction includes a reselection message, obtain second reselection information in the reselection message.
The determining unit 111 is further configured to determine that the second reselection information is the target reselection information. The second reselection information comprises an NR frequency point of a fifth generation mobile communication technology 5G cell and the frequency priority of the 5G cell, wherein the 5G cell is a cell covering the UE.
Optionally, as shown in fig. 6, the determining unit 111, and the determining unit 111 are specifically configured to:
and receiving RRC connection release signaling sent by the base station.
And if the RRC connection release signaling comprises reselection information, acquiring second reselection information in the reselection information, and determining that the second reselection information is target reselection information. The second reselection information comprises an NR frequency point of a 5G cell and the frequency priority of the 5G cell, and one 5G cell is a cell covering the UE.
Fig. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in fig. 7, the base station 12 is configured to perform the cell reselection method shown in fig. 4. The base station 12 includes an acquisition unit 121, a generation unit 122, and a transmission unit 123:
an obtaining unit 121, configured to obtain a new air interface NR frequency point of a 5G cell that covers a fifth generation mobile communication technology of a user equipment UE, a frequency priority of the NR frequency point of the 5G cell, and an IMMCI message of a current residence cell of the UE.
The generating unit 122 is configured to adjust the IMMCI message according to the frequency priority of the NR frequency point of the 5G cell and the NR frequency point of the 5G cell acquired by the acquiring unit 121, so as to generate a reselection message. The reselection message comprises a new air interface NR frequency point of the 5G cell and the frequency priority of the NR frequency point of the 5G cell.
A sending unit 123, configured to send an RRC connection release signaling to the UE. The RRC connection release new signaling includes the reselection message generated by the generating unit 122.
In the case of implementing the functions of the integrated modules in the form of hardware, the embodiment of the present invention provides another possible structural schematic diagram of the UE involved in the above embodiments. As shown in fig. 8, a UE50 for performing the cell reselection method of fig. 2. The UE50 includes a processor 501, memory 502, and a bus 503. The processor 501 and the memory 502 may be connected by a bus 503.
The processor 501 is a control center of the communication apparatus, and may be a single processor or a collective term for a plurality of processing elements. For example, the processor 501 may be a Central Processing Unit (CPU), other general-purpose processors, or the like. Wherein a general purpose processor may be a microprocessor or any conventional processor or the like.
For one embodiment, processor 501 may include one or more CPUs, such as CPU 0 and CPU 1 shown in FIG. 8.
The memory 502 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
As a possible implementation, the memory 502 may exist separately from the processor 501, and the memory 502 may be connected to the processor 501 via a bus 503 for storing instructions or program code. The cell reselection method provided by the embodiments of the present invention can be implemented when the processor 501 calls and executes instructions or program codes stored in the memory 502.
In another possible implementation, the memory 502 may also be integrated with the processor 501.
The bus 503 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 8, but this is not intended to represent only one bus or type of bus.
It is noted that the structure shown in fig. 8 does not constitute a limitation of the UE 50. In addition to the components shown in fig. 8, the UE50 may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As an example, in connection with fig. 8, the functions implemented by the determining unit 111, the measuring unit 112, and the reselecting unit 113 in the UE are the same as the functions of the processor 501 in fig. 8.
Optionally, as shown in fig. 8, the UE50 provided in the embodiment of the present invention may further include a communication interface 504.
A communication interface 504 for connecting with other devices through a communication network. The communication network may be an ethernet network, a radio access network, a Wireless Local Area Network (WLAN), etc. The communication interface 504 may include a receiving unit for receiving data and a transmitting unit for transmitting data.
In one design, in the UE provided in the embodiment of the present invention, the communication interface may be further integrated in the processor.
Fig. 9 shows another hardware structure of the UE in the embodiment of the present invention. As shown in fig. 9, the UE60 may include a processor 601 and a communication interface 602. Processor 601 is coupled to a communication interface 602.
The functions of the processor 601 may refer to the description of the processor 501 above. The processor 601 also has a memory function, and the function of the memory 502 can be referred to above.
The communication interface 602 is used to provide data to the processor 601. The communication interface 602 may be an internal interface of the communication device, or may be an external interface (corresponding to the communication interface 504) of the communication device.
It is noted that the configuration shown in fig. 9 does not constitute a limitation of the UE60, and that the UE60 may include more or less components than shown, or combine certain components, or a different arrangement of components, in addition to the components shown in fig. 9.
Meanwhile, the structural schematic diagram of another hardware of the base station provided in the present disclosure may also refer to the description of the UE in fig. 8 and fig. 9, which is not repeated herein. Except that the base station comprises a processor for performing the steps performed by the base station in the above described embodiments.
Through the above description of the embodiments, it is clear for a person skilled in the art that, for convenience and simplicity of description, only the division of the above functional units is illustrated. In practical applications, the above function allocation can be performed by different functional units according to needs, that is, the internal structure of the device is divided into different functional units to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
The embodiment of the present invention further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed by a computer, the computer executes each step in the method flow shown in the above method embodiment.
Embodiments of the present invention provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the cell reselection method of the above method embodiments.
The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, and a hard disk. Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read-Only Memory (EPROM), registers, a hard disk, an optical fiber, a portable Compact disk Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium, in any suitable combination, or as appropriate in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). In embodiments of the invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
Since the UE, the computer-readable storage medium, and the computer program product in the embodiments of the present invention may be applied to the method described above, for technical effects obtained by the method, reference may also be made to the method embodiments described above, and details of the embodiments of the present invention are not repeated herein.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions within the technical scope of the present invention are intended to be covered by the scope of the present invention.

Claims (13)

1. A cell reselection method is applied to User Equipment (UE), and is characterized by comprising the following steps:
determining target reselection information, wherein the target reselection information is located in the configuration information of the UE or in a reselection message issued by a base station; the reselection information comprises at least one new air interface NR frequency point and the frequency priority of the at least one NR frequency point, and the reselection information is generated by the base station according to IMMCI information;
according to the frequency priority of the at least one NR frequency point, carrying out cell frequency point measurement;
and determining the target cell of which the measurement result meets the reselection judgment condition, and reselecting the target cell.
2. The cell reselection method of claim 1, wherein said determining target reselection information comprises:
acquiring the configuration information, and determining that the configuration information comprises first reselection information, wherein the first reselection information comprises a new air interface NR frequency point list and a frequency priority list; the NR frequency point list comprises at least one NR frequency point, and the frequency priority list comprises the frequency priority corresponding to each NR frequency point;
and determining the first reselection information as the target reselection information, and acquiring the target reselection information.
3. The cell reselection method of claim 2, wherein the method further comprises:
under the condition that the configuration information comprises the first reselection information, if an RRC connection release instruction sent by the base station is received and the RRC connection release instruction comprises the reselection information, acquiring second reselection information in the reselection information and determining that the second reselection information is the target reselection information; the second reselection information includes an NR frequency point of a 5G cell of a fifth generation mobile communication technology and a frequency priority of the 5G cell, where the 5G cell is a cell covering the UE.
4. The cell reselection method of claim 1, wherein said determining target reselection information comprises:
receiving an RRC connection release signaling sent by a base station;
if the RRC connection release signaling comprises the reselection message, acquiring second reselection information in the reselection message, and determining the second reselection information as the target reselection information; the second reselection information includes an NR frequency point of one 5G cell and a frequency priority of the one 5G cell, and the one 5G cell is a cell covering the UE.
5. A cell reselection method applied to a base station, the method comprising:
acquiring a new air interface NR frequency point of a 5G cell of a fifth generation mobile communication technology covering User Equipment (UE), the frequency priority of the NR frequency point of the 5G cell and an IMMCI message of a current resident cell of the UE;
adjusting the IMMCI message according to the NR frequency point of the 5G cell and the frequency priority of the NR frequency point of the 5G cell to generate a reselection message; the reselection message comprises a new air interface NR frequency point of the 5G cell and the frequency priority of the NR frequency point of the 5G cell;
sending RRC connection release signaling to the UE; the reselection message is included in the RRC connection release new signaling.
6. The UE is characterized by comprising a determining unit, a measuring unit and a reselecting unit;
the determining unit is configured to determine target reselection information, where the target reselection information is located in configuration information of the UE or in a reselection message issued by a base station; the reselection information comprises at least one new air interface NR frequency point and the frequency priority of the at least one NR frequency point, and the reselection information is generated by the base station according to IMMCI information;
the measuring unit is configured to measure a cell frequency point according to the frequency priority of the at least one NR frequency point determined by the determining unit;
and determining the target cell of which the measurement result meets the reselection judgment condition, and reselecting the target cell.
7. The UE of claim 6, wherein the determining unit is specifically configured to:
acquiring the configuration information, and determining that the configuration information comprises first reselection information, wherein the first reselection information comprises a new air interface NR frequency point list and a frequency priority list; the NR frequency point list comprises at least one NR frequency point, and the frequency priority list comprises the frequency priority corresponding to each NR frequency point;
and determining the first reselection information as the target reselection information, and acquiring the target reselection information.
8. The UE of claim 7, further comprising an acquisition unit;
the obtaining unit is configured to, if an RRC connection release instruction sent by the base station is received and the RRC connection release instruction includes the reselection message, obtain second reselection information in the reselection message when the configuration information includes the first reselection information;
the determining unit is further configured to determine that the second reselection information is the target reselection information; the second reselection information includes an NR frequency point of a 5G cell of a fifth generation mobile communication technology and a frequency priority of the 5G cell, where the 5G cell is a cell covering the UE.
9. The UE according to claim 6, wherein the determining unit is further configured to:
receiving an RRC connection release signaling sent by a base station;
if the RRC connection release signaling comprises the reselection message, acquiring second reselection information in the reselection message, and determining the second reselection information as the target reselection information; the second reselection information includes an NR frequency point of one 5G cell and a frequency priority of the one 5G cell, and the one 5G cell is a cell covering the UE.
10. A base station, characterized in that the base station comprises an acquisition unit, a generation unit, and a transmission unit:
the acquiring unit is configured to acquire a new air interface NR frequency point of a 5G cell covering a fifth generation mobile communication technology of a user equipment UE, a frequency priority of the NR frequency point of the 5G cell, and an IMMCI message of a currently camped cell of the UE;
the generating unit is configured to adjust the IMMCI message according to the frequency priority of the NR frequency point of the 5G cell and the frequency priority of the NR frequency point of the 5G cell acquired by the acquiring unit, so as to generate a reselection message; the reselection message comprises a new air interface NR frequency point of the 5G cell and the frequency priority of the NR frequency point of the 5G cell;
the sending unit is configured to send an RRC connection release signaling to the UE; the RRC connection release new signaling includes the reselection message generated by the generating unit.
11. A computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform the cell reselection method of any of claims 1-4 and 5.
12. A UE, comprising: a processor and a memory; wherein the memory is configured to store one or more programs, the one or more programs comprising computer executable instructions that, when executed by the UE, cause the UE to perform the cell reselection method of any of claims 1-4.
13. A base station, comprising: a processor and a memory; wherein the memory is configured to store one or more programs, the one or more programs including computer-executable instructions, which when executed by the processor, cause the base station to perform the cell reselection method of claim 5.
CN202011487201.0A 2020-12-16 2020-12-16 Cell reselection method and device Active CN114641043B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011487201.0A CN114641043B (en) 2020-12-16 2020-12-16 Cell reselection method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011487201.0A CN114641043B (en) 2020-12-16 2020-12-16 Cell reselection method and device

Publications (2)

Publication Number Publication Date
CN114641043A true CN114641043A (en) 2022-06-17
CN114641043B CN114641043B (en) 2023-06-06

Family

ID=81944981

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011487201.0A Active CN114641043B (en) 2020-12-16 2020-12-16 Cell reselection method and device

Country Status (1)

Country Link
CN (1) CN114641043B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117062177A (en) * 2023-08-09 2023-11-14 北京蓝玛星际科技有限公司 Cell parameter information configuration method, device, equipment and storage medium

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107040975A (en) * 2015-07-16 2017-08-11 中兴通讯股份有限公司 A kind of method for network access and device
CN109936862A (en) * 2017-12-15 2019-06-25 中国移动通信集团浙江有限公司 A kind of non-private network user moves out the method, apparatus and electronic equipment of private network
US20190373523A1 (en) * 2018-06-01 2019-12-05 Verizon Patent And Licensing Inc. Method and system for anchor cell reselection with multi-rat dual-connectivity
CN110831078A (en) * 2018-08-08 2020-02-21 维沃移动通信有限公司 Cell reselection method, terminal and network side equipment
CN111405637A (en) * 2020-03-19 2020-07-10 中国联合网络通信集团有限公司 Communication method and device
US20200359288A1 (en) * 2018-01-29 2020-11-12 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Cell reselection method and device, and computer storage medium
CN111988820A (en) * 2019-05-22 2020-11-24 大唐移动通信设备有限公司 Cell reselection control method and device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107040975A (en) * 2015-07-16 2017-08-11 中兴通讯股份有限公司 A kind of method for network access and device
CN109936862A (en) * 2017-12-15 2019-06-25 中国移动通信集团浙江有限公司 A kind of non-private network user moves out the method, apparatus and electronic equipment of private network
US20200359288A1 (en) * 2018-01-29 2020-11-12 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Cell reselection method and device, and computer storage medium
US20190373523A1 (en) * 2018-06-01 2019-12-05 Verizon Patent And Licensing Inc. Method and system for anchor cell reselection with multi-rat dual-connectivity
CN110831078A (en) * 2018-08-08 2020-02-21 维沃移动通信有限公司 Cell reselection method, terminal and network side equipment
CN111988820A (en) * 2019-05-22 2020-11-24 大唐移动通信设备有限公司 Cell reselection control method and device
CN111405637A (en) * 2020-03-19 2020-07-10 中国联合网络通信集团有限公司 Communication method and device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"\"38304_CR0151r1_(Rel-16)_R2-2002318 (agreed)38.304CR on cell selection(reselection) for NR V2X UE\"", 3GPP TSG_RAN\\TSG_RAN *
林平平;张光辉;李?;: "5G SA网络的移动性管理研究", 电子技术应用, no. 09 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117062177A (en) * 2023-08-09 2023-11-14 北京蓝玛星际科技有限公司 Cell parameter information configuration method, device, equipment and storage medium
CN117062177B (en) * 2023-08-09 2024-05-10 北京蓝玛星际科技有限公司 Cell parameter information configuration method, device, equipment and storage medium

Also Published As

Publication number Publication date
CN114641043B (en) 2023-06-06

Similar Documents

Publication Publication Date Title
US20220346001A1 (en) Dwelling cell method, terminal, and non-transitory storage medium
CN107925959B (en) Method of wireless communication, UE, BS, and computer-readable medium
CN108282845B (en) Network access method and mobile communication terminal
CN108605266B (en) Wireless access control method, device and system
EP3731562A1 (en) Cell reselection method, apparatus and system
CN110691384A (en) Network slice using method and device
CN107211335B (en) Cell reselection method and user terminal
CN110546993B (en) Cell reselection method, device, mobile terminal and storage medium
CN107820718B (en) Method and device for reselecting cell
CN110602765B (en) Network selection method and device
CN109561477B (en) Cell information sending method, cell information residing method, network equipment and terminal
CN116390103A (en) Communication method, device and system
CN110612670B (en) Antenna selection method and device and terminal
CN114641043B (en) Cell reselection method and device
CN112020899B (en) Network access method and related equipment
CN110691391A (en) Method, device and system for switching access node and sending signal parameter information
EP4380235A1 (en) Slice-based cell reselection method and related device
CN114616901B (en) Information transmission method, device, equipment and storage medium
CN114189900B (en) Cell measurement method, device, terminal and storage medium
CN114039641B (en) Satellite determination method, device, equipment and storage medium
US20230239756A1 (en) Device switching method and apparatus, and device and readable storage medium
CN117356142A (en) Network access method, parameter configuration method, device, equipment and storage medium
CN112788708A (en) Resident cell determination method, information sending method, terminal and network side equipment
CN112752283B (en) Cell determination method and device
WO2023197220A1 (en) Neighboring cell measurement method and apparatus, and device and storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant