CN112702768A - Dual-connection switching method, device, base station and terminal - Google Patents

Dual-connection switching method, device, base station and terminal Download PDF

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Publication number
CN112702768A
CN112702768A CN201911006642.1A CN201911006642A CN112702768A CN 112702768 A CN112702768 A CN 112702768A CN 201911006642 A CN201911006642 A CN 201911006642A CN 112702768 A CN112702768 A CN 112702768A
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China
Prior art keywords
terminal
base station
measurement report
measurement
target
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CN201911006642.1A
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Chinese (zh)
Inventor
周娇
刘建华
李新
柯颋
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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Priority to CN201911006642.1A priority Critical patent/CN112702768A/en
Publication of CN112702768A publication Critical patent/CN112702768A/en
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    • 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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
    • 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
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • 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
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • 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
    • H04W36/00835—Determination of neighbour cell lists
    • 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
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
    • H04W36/28—Reselection being triggered by specific parameters by agreed or negotiated communication parameters involving a plurality of connections, e.g. multi-call or multi-bearer connections
    • 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
    • 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
    • H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface

Abstract

The invention provides a dual-connection switching method, a device, a base station and a terminal, wherein the method comprises the following steps: receiving a measurement report reported by a terminal, which is sent by a source main base station of the terminal; the measurement report includes: 5G neighbor cell information of the terminal; after the terminal is switched from the source main base station to the target main base station, indicating the terminal to access the target auxiliary base station according to the 5G adjacent area information of the terminal contained in the measurement report; in the embodiment of the invention, the target main base station acquires the target auxiliary base station of the terminal through the 5G neighbor cell information transmitted by the source main base station, and the target main base station does not need to send a 5G measurement control message to the terminal, so that the terminal does not need to feed back a 5G measurement report; the method can ensure that the terminal is accessed to the target auxiliary base station, and can reduce the time delay added by the target auxiliary base station, thereby reducing the time delay of dual-connection switching.

Description

Dual-connection switching method, device, base station and terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a base station, and a terminal for dual connectivity handover.
Background
The switching process of the 5G NR (New Radio, New air interface) system is as follows:
1. the terminal reports the 4G measurement result, the base station sends a switching command after judging, and the RRC (Radio Resource Control) reconfiguration message carries mobility Control info IE (mobile Control information) with targetPhysCellId (target cell identification).
And 2, carrying a 5G NR bearer IE in the RRC reconfiguration message, and starting 4G handover after the terminal deletes the SCG (Secondary Cell Group) and finishing the handover to the 4G target Cell.
And after the 3.4G switching is finished, the 4G target cell issues 5G measurement control to the terminal, the terminal reports a 5G NR measurement report, the target 4G base station issues a reconfiguration message with targetPhysCellId, and the terminal Non-competitively accesses to a Non-Standalone (Non-independent networking) SCG.
In the external field test, after the 4G switching is completed, the 5G measurement and control message of the terminal is issued for about 30ms, the measurement and report is about 350ms, the SCG is added for about 150ms, the measurement and report delay is reduced by about 100ms after the adjacent cell optimization, the overall switching delay is about 450ms, and the measurement and report time accounts for about 50%. In summary, the switching delay of the 5G NR system is long, and the delay requirements of some special scenarios cannot be met.
Disclosure of Invention
Embodiments of the present invention provide a dual connectivity handover method, an apparatus, a base station, and a terminal, so as to solve the problem of long time delay of dual connectivity handover in the related art.
In order to solve the above problem, an embodiment of the present invention provides a dual connectivity switching method, applied to a target primary base station of a terminal, including:
receiving a measurement report reported by a terminal, which is sent by a source main base station of the terminal; the measurement report includes: 5G neighbor cell information of the terminal;
and after the terminal is switched from the source main base station to the target main base station, indicating the terminal to access the target auxiliary base station according to the 5G adjacent area information of the terminal contained in the measurement report.
Wherein the measurement report further comprises: and 4G neighbor cell information of the terminal.
Wherein, the instructing the terminal to access the target auxiliary base station according to the 5G neighboring cell information of the terminal contained in the measurement report includes:
determining a target auxiliary base station of the terminal under a target main base station according to the 5G adjacent cell information of the terminal and the 5G adjacent cell of the target main base station, which are contained in the measurement report;
and if the 5G adjacent cell information of the terminal comprises the target auxiliary base station of the terminal, sending a first Radio Resource Control (RRC) reconfiguration message to the terminal, wherein the first RRC reconfiguration message carries the identification information of the target auxiliary base station.
If the 5G neighbor cell information of the terminal does not include the target secondary base station of the terminal, the method further includes:
sending a 5G measurement control message to the terminal, receiving a 5G measurement report reported by the terminal, and indicating the terminal to access a target auxiliary base station according to the 5G measurement report;
alternatively, the first and second electrodes may be,
and indicating the terminal to access the auxiliary base station in a blind handover mode.
Wherein the terminal history information of the target main base station includes:
the neighbor cell list measured by the terminal comprises 4G neighbor cells and/or 5G neighbor cells;
and the terminal resides in a neighbor list, wherein the neighbor where the terminal resides comprises a 4G neighbor and/or a 5G neighbor.
The embodiment of the invention also provides a dual-connection switching method, which is applied to the source main base station of the terminal and comprises the following steps:
sending a measurement report reported by the terminal to a target main base station of the terminal, wherein the measurement report comprises: and 5G adjacent area information of the terminal.
Wherein the measurement report further comprises: and 4G neighbor cell information of the terminal.
Before sending the measurement report reported by the terminal to the target master base station of the terminal, the method further includes:
sending a measurement control message to the terminal, wherein the measurement control message comprises a 4G measurement control event and a 5G measurement control event;
and receiving a measurement report reported by the terminal, wherein the measurement report comprises 4G adjacent cell information of the terminal and 5G adjacent cell information of the terminal.
Wherein the 5G measurement control event is: and 4G measurement and control conditions are met.
Wherein, the receiving the measurement report reported by the terminal includes:
receiving a 4G A3 measurement report and a 4G B1 measurement report reported by the terminal, wherein a trigger threshold of a 4G B1 event corresponding to the 4G B1 measurement report is lower than a first preset value;
alternatively, the first and second electrodes may be,
receiving a 4G A3 measurement report and a 5G A2 measurement report reported by the terminal, wherein a trigger threshold of a 5G A2 event corresponding to the 5G A2 measurement report is lower than a second preset value;
alternatively, the first and second electrodes may be,
and receiving a 4G A3 measurement report and a 5G A3 measurement report reported by the terminal, wherein the trigger threshold of a 5G A3 event corresponding to the 5G A3 measurement report is higher than the trigger threshold of a 4G A3 event corresponding to the 4G A3 measurement report.
After receiving the measurement report reported by the terminal, the method further includes:
determining a target main base station switched by the terminal according to the 4G neighbor cell information of the terminal contained in the measurement report;
and sending a second RRC reconfiguration message to the terminal, wherein the second RRC reconfiguration message carries the identification information of the target main base station.
The embodiment of the invention also provides a dual-connection switching method, which is applied to a terminal and comprises the following steps:
receiving a measurement control message sent by a source main base station of the terminal, wherein the measurement control message comprises a 4G measurement control event and a 5G measurement control event;
and performing 4G measurement and 5G measurement according to the measurement control message, and reporting a measurement report to the source main base station, wherein the measurement report comprises 4G adjacent cell information of the terminal and 5G adjacent cell information of the terminal.
Wherein the 5G measurement control event is: and 4G measurement and control conditions are met.
Wherein reporting the measurement report to the source host base station includes:
reporting a 4G A3 measurement report and a 4G B1 measurement report to the source master base station, wherein a trigger threshold of a 4G B1 event corresponding to the 4G B1 measurement report is lower than a first preset value;
alternatively, the first and second electrodes may be,
reporting a 4G A3 measurement report and a 5G A2 measurement report to the source master base station, wherein a trigger threshold of a 5G A2 event corresponding to the 5G A2 measurement report is lower than a second preset value;
alternatively, the first and second electrodes may be,
and reporting a 4G A3 measurement report and a 5G A3 measurement report to the source main base station, wherein the trigger threshold of a 5G A3 event corresponding to the 5G A3 measurement report is higher than the trigger threshold of a 4G A3 event corresponding to the 4G A3 measurement report.
Wherein, after reporting the measurement report to the source master base station, the method further comprises:
receiving a second RRC reconfiguration message sent by the source main base station, wherein the second RRC reconfiguration message carries the identification information of the target main base station;
switching from the source primary base station to the target primary base station according to the second RRC reconfiguration message.
Wherein after the switching from the source master base station to the target master base station, the method further comprises:
receiving a first RRC reconfiguration message sent by the target main base station, wherein the first RRC reconfiguration message carries identification information of the target auxiliary base station;
and accessing the target auxiliary base station according to the first RRC reconfiguration message.
The embodiment of the present invention further provides a dual-connection switching device, which is applied to a target main base station of a terminal, and includes:
the report receiving module is used for receiving a measurement report reported by the terminal and sent by a source main base station of the terminal; the measurement report includes: 5G neighbor cell information of the terminal;
and the first switching module is used for indicating the terminal to access the target auxiliary base station according to the 5G adjacent area information of the terminal contained in the measurement report after the terminal is switched from the source main base station to the target main base station.
The embodiment of the present invention further provides a base station, where the base station is a target master base station of the terminal, and the base station includes a processor and a transceiver, where the transceiver receives and transmits data under the control of the processor, and the processor is configured to perform the following operations:
receiving a measurement report reported by a terminal, which is sent by a source main base station of the terminal; the measurement report includes: 5G neighbor cell information of the terminal;
and after the terminal is switched from the source main base station to the target main base station, indicating the terminal to access the target auxiliary base station according to the 5G adjacent area information of the terminal contained in the measurement report.
The embodiment of the present invention further provides a dual-connection switching device, which is applied to a source master base station of a terminal, and includes:
a report reporting module, configured to send a measurement report reported by the terminal to a target master base station of the terminal, where the measurement report includes: and 5G adjacent area information of the terminal.
The embodiment of the present invention further provides a base station, where the base station is a source master base station of a terminal, the base station includes a processor and a transceiver, the transceiver receives and transmits data under the control of the processor, and the processor is configured to perform the following operations:
sending a measurement report reported by the terminal to a target main base station of the terminal, wherein the measurement report comprises: and 5G adjacent area information of the terminal.
The embodiment of the invention also provides a dual-connection switching device, which is applied to a terminal and comprises:
a request receiving module, configured to receive a measurement control message sent by a source master base station of the terminal, where the measurement control message includes a 4G measurement control event and a 5G measurement control event;
and a report reporting module, configured to perform 4G measurement and 5G measurement according to the measurement control message, and report a measurement report to the source main base station, where the measurement report includes 4G neighbor cell information of the terminal and 5G neighbor cell information of the terminal.
An embodiment of the present invention further provides a terminal, including a processor and a transceiver, where the transceiver receives and transmits data under the control of the processor, and the processor is configured to perform the following operations:
receiving a measurement control message sent by a source main base station of the terminal, wherein the measurement control message comprises a 4G measurement control event and a 5G measurement control event;
and performing 4G measurement and 5G measurement according to the measurement control message, and reporting a measurement report to the source main base station, wherein the measurement report comprises 4G adjacent cell information of the terminal and 5G adjacent cell information of the terminal.
The embodiment of the present invention further provides a communication device, which includes a memory, a processor, and a program stored in the memory and capable of running on the processor, and the processor implements the dual connectivity switching method as described above when executing the program.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the dual connectivity switching method described above.
The technical scheme of the invention at least has the following beneficial effects:
in the dual-connection switching method, the dual-connection switching device, the base station and the terminal, 5G neighbor cell information of the terminal reported by the terminal is sent to a target main base station through a source main base station, the target main base station acquires a target auxiliary base station of the terminal through the 5G neighbor cell information transmitted by the source main base station, and the target main base station does not need to send a 5G measurement control message to the terminal, so that the terminal does not need to feed back a 5G measurement report; the method can ensure that the terminal is accessed to the target auxiliary base station, and can reduce the time delay added by the target auxiliary base station, thereby reducing the time delay of dual-connection switching.
Drawings
Fig. 1 is a flowchart illustrating steps of a dual connectivity switching method according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a second step of a dual connectivity switching method according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a third step of a dual connectivity switching method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a dual-connection switching apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 6 is a second schematic structural diagram of a dual-connection switching device according to an embodiment of the present invention;
fig. 7 is a third schematic structural diagram of a dual-connection switching apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention further provides a dual connectivity switching method, applied to a target primary base station of a terminal, including:
step 11, receiving a measurement report reported by a terminal, which is sent by a source main base station of the terminal; the measurement report includes: 5G neighbor cell information of the terminal; for example, the source main base station transmits the measurement report reported by the terminal to the target main base station through an X2 interface.
And step 12, after the terminal is switched from the source main base station to the target main base station, indicating the terminal to access the target auxiliary base station according to the 5G adjacent area information of the terminal contained in the measurement report.
In the embodiment of the invention, 5G adjacent area information of the terminal is interacted between the source main base station and the target main base station, so that the time delay of measurement control and measurement report reporting when the target auxiliary base station is added under a double-connection framework is reduced, and the problem of low switching power under a blind switching (completely unknown target auxiliary base station) scene is avoided.
As an alternative embodiment, the measurement report further comprises: and 4G neighbor cell information of the terminal.
In the embodiment of the invention, the step that the target main base station receives the measurement report sent by the source base station and reported by the terminal occurs before the terminal is switched from the source main base station to the target main base station; the 5G neighbor information of the terminal may also be referred to as 5G prediction, and the 4G neighbor information of the terminal may also be referred to as 4G prediction. In other words, the target main base station does not need to send the measurement control message to the terminal and receive the 5G measurement report reported by the terminal to acquire the 5G neighbor cell information of the terminal, the target main base station directly acquires the 5G neighbor cell information of the terminal through interaction with the source main base station, the adding time delay of the target auxiliary base station can be reduced, and therefore the double-connection switching time delay is reduced.
As another alternative, step 12 comprises:
determining a target auxiliary base station of the terminal under a target main base station according to the 5G adjacent cell information of the terminal and the 5G adjacent cell of the target main base station, which are contained in the measurement report;
and if the 5G adjacent cell information of the terminal comprises the target auxiliary base station of the terminal, sending a first Radio Resource Control (RRC) reconfiguration message to the terminal, wherein the first RRC reconfiguration message carries the identification information of the target auxiliary base station.
In the embodiment of the invention, after the switching of the main base station is completed, the target main base station determines the target auxiliary base station of the terminal under the target main base station according to the 5G adjacent area information of the terminal transmitted by the source main base station and the 5G adjacent area of the target main base station; if the 5G neighbor cell information in the measurement report transmitted by the source main base station contains the determined target auxiliary base station, the target main base station does not issue the 5G measurement control message to the terminal, and directly issues the identification information of the target auxiliary base station with the first RRC reconfiguration message, namely, the identification of the target auxiliary base station is directly issued through the terminal measurement report acquired by the source main base station and the 5G neighbor cell relation of the target main base station, and the steps and time delay of issuing the measurement control message at the target main base station and reporting the measurement report by the terminal are omitted.
The terminal history information of the target main base station includes:
the neighbor cell list measured by the terminal comprises 4G neighbor cells and/or 5G neighbor cells;
and the terminal resides in a neighbor list, wherein the neighbor where the terminal resides comprises a 4G neighbor and/or a 5G neighbor.
In the related art, the terminal history information of the target main base station only includes a Last Visited Cell List (a neighbor Cell List where the terminal resides), and neighbor Cell information which is measured by the terminal but does not reside before can not be obtained; therefore, the embodiment of the invention adds the neighbor list measured by the terminal in the terminal history information of the target main base station; the neighbor cell list comprises 4G neighbor cells and/or 5G neighbor cells.
As another optional embodiment, if the 5G neighboring cell information of the terminal does not include the target secondary base station of the terminal, the method further includes:
sending a 5G measurement control message to the terminal, receiving a 5G measurement report reported by the terminal, and indicating the terminal to access a target auxiliary base station according to the 5G measurement report;
alternatively, the first and second electrodes may be,
and indicating the terminal to access the auxiliary base station in a blind handover mode.
In the embodiment of the invention, after the switching of the main base station is completed, the target main base station determines the target auxiliary base station of the terminal under the target main base station according to the 5G adjacent area information of the terminal transmitted by the source main base station and the 5G adjacent area of the target main base station; if the 5G neighbor cell information in the measurement report transmitted by the source main base station does not contain the determined target auxiliary base station, the target main base station can firstly check the 5G neighbor cell relation of the target main base station, and if the neighbor cell relation has no problem, the target auxiliary base station can be added in a blind handover mode or a 5G measurement control message sending mode. The way of blindly switching or issuing the 5G measurement control message is consistent with the existing related flow, and is not described in detail here.
To sum up, in the embodiment of the present invention, the source main base station sends the 5G neighbor information of the terminal reported by the terminal to the target main base station, the target main base station obtains the target auxiliary base station of the terminal through the 5G neighbor information transferred by the source main base station, and the target main base station does not need to issue a 5G measurement control message to the terminal, so that the terminal does not need to feed back a 5G measurement report; the method can ensure that the terminal is accessed to the target auxiliary base station, and can reduce the time delay added by the target auxiliary base station, thereby reducing the time delay of dual-connection switching.
As shown in fig. 2, an embodiment of the present invention further provides a dual connectivity switching method, applied to a source master base station of a terminal, including:
step 21, sending a measurement report reported by the terminal to a target main base station of the terminal, where the measurement report includes: and 5G adjacent area information of the terminal.
In the embodiment of the invention, 5G adjacent area information of the terminal is interacted between the source main base station and the target main base station, so that the time delay of measurement control and measurement report reporting when the target auxiliary base station is added under a double-connection framework is reduced, and the problem of low switching power under a blind switching (completely unknown target auxiliary base station) scene is avoided.
As an alternative embodiment, the measurement report further comprises: and 4G neighbor cell information of the terminal.
In the embodiment of the invention, the step that the target main base station receives the measurement report sent by the source base station and reported by the terminal occurs before the terminal is switched from the source main base station to the target main base station; the 5G neighbor information of the terminal may also be referred to as 5G prediction, and the 4G neighbor information of the terminal may also be referred to as 4G prediction. In other words, the target main base station does not need to send the measurement control message to the terminal and receive the 5G measurement report reported by the terminal to acquire the 5G neighbor cell information of the terminal, the target main base station directly acquires the 5G neighbor cell information of the terminal through interaction with the source main base station, the adding time delay of the target auxiliary base station can be reduced, and therefore the double-connection switching time delay is reduced.
Optionally, before step 21, the method further includes:
sending a measurement control message to the terminal, wherein the measurement control message comprises a 4G measurement control event and a 5G measurement control event;
and receiving a measurement report reported by the terminal, wherein the measurement report comprises 4G adjacent cell information of the terminal and 5G adjacent cell information of the terminal.
It should be noted that, if the 5G coverage of the location where the terminal is located is inferior to the 4G coverage, the source primary base station may receive the 5G measurement report and not receive the 4G measurement report, which finally causes the terminal to drop in 5G and the 4G to be still connected; i.e., the main base station cannot complete the handover, and will not be described herein.
If the 5G coverage of the position of the terminal is better than the 4G coverage, the 5G measurement control event is as follows: and 4G measurement and control conditions are met. The method aims to ensure that 5G simultaneously starts measurement reporting when 4G triggers a measurement reporting event. The situation that the 4G triggers the measurement reporting time and the 5G does not trigger the threshold is avoided, so that the 5G measurement result is lacked when the 4G measurement report is reported.
Optionally, the receiving the measurement report reported by the terminal includes:
receiving a 4G A3 measurement report and a 4G B1 measurement report reported by the terminal, wherein a trigger threshold of a 4G B1 event corresponding to the 4G B1 measurement report is lower than a first preset value;
the 4G B1 event sets a lower threshold, ensures that the B1 event is met simultaneously when the A3 event occurs, starts inter-system measurement, measures a 5G adjacent cell while measuring the 4G adjacent cell by the 4G terminal, and reports a measurement report. The method can cause frequent pilot frequency measurement of the terminal, occupy more pilot frequency measurement resources, and affect the power consumption and performance of the terminal.
Or, the receiving the measurement report reported by the terminal includes:
receiving a 4G A3 measurement report and a 5G A2 measurement report reported by the terminal, wherein a trigger threshold of a 5G A2 event corresponding to the 5G A2 measurement report is lower than a second preset value;
namely, the terminal 4G reports the neighboring cell information by using A3, the terminal 5G reports the neighboring cell information by using a2, and the event 5G A2 sets a lower threshold, so that the neighboring cell 5G is reported or reported simultaneously when the neighboring cell information 4G A3 is reported. This approach may result in the terminal reporting 5G measurement reports frequently.
Or, the receiving the measurement report reported by the terminal includes:
receiving a 4G A3 measurement report and a 5G A3 measurement report reported by the terminal, wherein the trigger threshold of a 5G A3 event corresponding to the 5G A3 measurement report is higher than the trigger threshold of a 4G A3 event corresponding to the 4G A3 measurement report;
namely, the terminal 4G reports the neighboring cell information by using A3, the terminal 5G reports the neighboring cell information by using A3, the trigger threshold of the 5G A3 event is higher than the trigger threshold of the 4G A3 event, so that the 5G A3 event is triggered preferentially to the 4G A3 event, and the 5G neighboring cell is reported or reported simultaneously when the 4G A3 neighboring cell information is reported. The method can save power consumption of the terminal and improve system performance, but cannot completely ensure that the latest 5G latest neighbor cell information is carried when the 4G neighbor cell information is reported.
Optionally, after step 21, the method further includes:
determining a target main base station switched by the terminal according to the 4G neighbor cell information of the terminal contained in the measurement report;
and sending a second RRC reconfiguration message to the terminal, wherein the second RRC reconfiguration message carries the identification information of the target main base station.
After the terminal starts the switching of the main base station (namely 4G switching) according to the second RRC reconfiguration message, the connection of the auxiliary base station of the source main base station needs to be disconnected, and the switching is completed after the terminal is accessed to the target main base station.
In summary, in the above embodiments of the present invention, before the main base station is switched, the 4G measurement report that is reported to the main base station of the source by the terminal needs to carry 5G neighbor information, or the 4G measurement report is preceded by the report of 5G neighbor information; the source main base station transmits a measurement report of the terminal to the target main base station through an X2 interface, the target main base station acquires a target auxiliary base station of the terminal through 5G neighbor information transmitted by the source main base station, and the target main base station does not need to send a 5G measurement control message to the terminal, so that the terminal does not need to feed back the 5G measurement report; the method can ensure that the terminal is accessed to the target auxiliary base station, and can reduce the time delay added by the target auxiliary base station, thereby reducing the time delay of dual-connection switching.
As shown in fig. 3, an embodiment of the present invention further provides a dual connectivity switching method, which is applied to a terminal, and includes:
step 31, receiving a measurement control message sent by a source master base station of the terminal, wherein the measurement control message comprises a 4G measurement control event and a 5G measurement control event;
and step 32, performing 4G measurement and 5G measurement according to the measurement control message, and reporting a measurement report to the source main base station, wherein the measurement report includes 4G neighbor cell information of the terminal and 5G neighbor cell information of the terminal.
It should be noted that, if the 5G coverage of the location where the terminal is located is inferior to the 4G coverage, the source primary base station may receive the 5G measurement report and not receive the 4G measurement report, which finally causes the terminal to drop in 5G and the 4G to be still connected; i.e., the main base station cannot complete the handover, and will not be described herein.
If the 5G coverage of the position of the terminal is better than the 4G coverage, the 5G measurement control event is as follows: and 4G measurement and control conditions are met. The method aims to ensure that 5G simultaneously starts measurement reporting when 4G triggers a measurement reporting event. The situation that the 4G triggers the measurement reporting time and the 5G does not trigger the threshold is avoided, so that the 5G measurement result is lacked when the 4G measurement report is reported.
Optionally, the reporting of the measurement report to the source host base station includes:
reporting a 4G A3 measurement report and a 4G B1 measurement report to the source master base station, wherein a trigger threshold of a 4G B1 event corresponding to the 4G B1 measurement report is lower than a first preset value;
the 4G B1 event sets a lower threshold, ensures that the B1 event is met simultaneously when the A3 event occurs, starts inter-system measurement, measures a 5G adjacent cell while measuring the 4G adjacent cell by the 4G terminal, and reports a measurement report. The method can cause frequent pilot frequency measurement of the terminal, occupy more pilot frequency measurement resources, and affect the power consumption and performance of the terminal.
Or, the reporting the measurement report to the source host base station includes:
reporting a 4G A3 measurement report and a 5G A2 measurement report to the source master base station, wherein a trigger threshold of a 5G A2 event corresponding to the 5G A2 measurement report is lower than a second preset value;
namely, the terminal 4G reports the neighboring cell information by using A3, the terminal 5G reports the neighboring cell information by using a2, and the event 5G A2 sets a lower threshold, so that the neighboring cell 5G is reported or reported simultaneously when the neighboring cell information 4G A3 is reported. This approach may result in the terminal reporting 5G measurement reports frequently.
Or, the reporting the measurement report to the source host base station includes:
reporting a 4G A3 measurement report and a 5G A3 measurement report to the source main base station, wherein the trigger threshold of a 5G A3 event corresponding to the 5G A3 measurement report is higher than the trigger threshold of a 4G A3 event corresponding to the 4G A3 measurement report;
namely, the terminal 4G reports the neighboring cell information by using A3, the terminal 5G reports the neighboring cell information by using A3, the trigger threshold of the 5G A3 event is higher than the trigger threshold of the 4G A3 event, so that the 5G A3 event is triggered preferentially to the 4G A3 event, and the 5G neighboring cell is reported or reported simultaneously when the 4G A3 neighboring cell information is reported. The method can save power consumption of the terminal and improve system performance, but cannot completely ensure that the latest 5G latest neighbor cell information is carried when the 4G neighbor cell information is reported.
Optionally, after reporting the measurement report to the source primary base station, the method further includes:
receiving a second RRC reconfiguration message sent by the source main base station, wherein the second RRC reconfiguration message carries the identification information of the target main base station;
switching from the source primary base station to the target primary base station according to the second RRC reconfiguration message.
After the terminal starts the switching of the main base station (namely 4G switching) according to the second RRC reconfiguration message, the connection of the auxiliary base station of the source main base station needs to be disconnected, and the switching is completed after the terminal is accessed to the target main base station.
Further, after the switching from the source master base station to the target master base station, the method further includes:
receiving a first RRC reconfiguration message sent by the target main base station, wherein the first RRC reconfiguration message carries identification information of the target auxiliary base station;
and accessing the target auxiliary base station according to the first RRC reconfiguration message.
In the embodiment of the invention, after the switching of the main base station is completed, the target main base station determines the target auxiliary base station of the terminal under the target main base station according to the 5G adjacent area information of the terminal transmitted by the source main base station and the 5G adjacent area of the target main base station; if the 5G neighbor cell information in the measurement report transmitted by the source main base station contains the determined target auxiliary base station, the target main base station does not issue the 5G measurement control message to the terminal, and directly issues the identification information of the target auxiliary base station with the first RRC reconfiguration message, namely, the identification of the target auxiliary base station is directly issued through the terminal measurement report acquired by the source main base station and the 5G neighbor cell relation of the target main base station, and the steps and time delay of issuing the measurement control message at the target main base station and reporting the measurement report by the terminal are omitted.
If the 5G neighbor cell information in the measurement report transmitted by the source main base station does not contain the determined target auxiliary base station, the target main base station can firstly check the 5G neighbor cell relation of the target main base station, and if the neighbor cell relation has no problem, the target auxiliary base station can be added in a blind handover mode or a 5G measurement control message sending mode. The way of blindly switching or issuing the 5G measurement control message is consistent with the existing related flow, and is not described in detail here.
To sum up, in the embodiment of the present invention, the source main base station sends the 5G neighbor information of the terminal reported by the terminal to the target main base station, the target main base station obtains the target auxiliary base station of the terminal through the 5G neighbor information transferred by the source main base station, and the target main base station does not need to issue a 5G measurement control message to the terminal, so that the terminal does not need to feed back a 5G measurement report; the method can ensure that the terminal is accessed to the target auxiliary base station, and can reduce the time delay added by the target auxiliary base station, thereby reducing the time delay of dual-connection switching.
As shown in fig. 4, an embodiment of the present invention further provides a dual connectivity switching apparatus, which is applied to a target master base station of a terminal, and includes:
a report receiving module 41, configured to receive a measurement report sent by a source host base station of a terminal and reported by the terminal; the measurement report includes: 5G neighbor cell information of the terminal;
and the first switching module 42 is configured to, after the terminal is switched from the source main base station to the target main base station, instruct the terminal to access the target secondary base station according to the 5G neighbor information of the terminal included in the measurement report.
Optionally, in the above embodiment of the present invention, the measurement report further includes: and 4G neighbor cell information of the terminal.
Optionally, in the above embodiment of the present invention, the first switching module includes:
a first sub-module, configured to determine, according to the 5G neighbor information of the terminal and the 5G neighbor of the target master base station that are included in the measurement report, a target secondary base station of the terminal under the target master base station;
and the second sub-module is configured to send a first radio resource control RRC reconfiguration message to the terminal if the 5G neighboring cell information of the terminal includes the target secondary base station of the terminal, where the first RRC reconfiguration message carries identification information of the target secondary base station.
Optionally, in the foregoing embodiment of the present invention, if the 5G neighboring cell information of the terminal does not include the target secondary base station of the terminal, the information further includes:
a third sub-module, configured to send a 5G measurement control message to the terminal, receive a 5G measurement report reported by the terminal, and instruct, according to the 5G measurement report, the terminal to access the target auxiliary base station;
or, the method is used for instructing the terminal to access the secondary base station in a blind handover manner.
Optionally, in the foregoing embodiment of the present invention, the terminal history information of the target main base station includes:
the neighbor cell list measured by the terminal comprises 4G neighbor cells and/or 5G neighbor cells;
and the terminal resides in a neighbor list, wherein the neighbor where the terminal resides comprises a 4G neighbor and/or a 5G neighbor.
To sum up, in the embodiment of the present invention, the source main base station sends the 5G neighbor information of the terminal reported by the terminal to the target main base station, the target main base station obtains the target auxiliary base station of the terminal through the 5G neighbor information transferred by the source main base station, and the target main base station does not need to issue a 5G measurement control message to the terminal, so that the terminal does not need to feed back a 5G measurement report; the method can ensure that the terminal is accessed to the target auxiliary base station, and can reduce the time delay added by the target auxiliary base station, thereby reducing the time delay of dual-connection switching.
It should be noted that the dual connectivity switching apparatus provided in the embodiments of the present invention is an apparatus capable of executing the dual connectivity switching method, and all embodiments of the dual connectivity switching method are applicable to the apparatus and can achieve the same or similar beneficial effects.
As shown in fig. 5, an embodiment of the present invention further provides a base station, where the base station is a target master base station of the terminal, the base station includes a processor 500 and a transceiver 510, the transceiver 510 receives and transmits data under the control of the processor 500, and the processor 500 is configured to perform the following operations:
receiving a measurement report reported by a terminal, which is sent by a source main base station of the terminal; the measurement report includes: 5G neighbor cell information of the terminal;
and after the terminal is switched from the source main base station to the target main base station, indicating the terminal to access the target auxiliary base station according to the 5G adjacent area information of the terminal contained in the measurement report.
Optionally, in the above embodiment of the present invention, the measurement report further includes: and 4G neighbor cell information of the terminal.
Optionally, in the above embodiment of the present invention, the processor is further configured to:
determining a target auxiliary base station of the terminal under a target main base station according to the 5G adjacent cell information of the terminal and the 5G adjacent cell of the target main base station, which are contained in the measurement report;
and if the 5G adjacent cell information of the terminal comprises the target auxiliary base station of the terminal, sending a first Radio Resource Control (RRC) reconfiguration message to the terminal, wherein the first RRC reconfiguration message carries the identification information of the target auxiliary base station.
Optionally, in the embodiment of the present invention, if the 5G neighboring cell information of the terminal does not include the target secondary base station of the terminal, the processor is further configured to:
sending a 5G measurement control message to the terminal, receiving a 5G measurement report reported by the terminal, and indicating the terminal to access a target auxiliary base station according to the 5G measurement report;
alternatively, the first and second electrodes may be,
and indicating the terminal to access the auxiliary base station in a blind handover mode.
Optionally, in the foregoing embodiment of the present invention, the terminal history information of the target main base station includes:
the neighbor cell list measured by the terminal comprises 4G neighbor cells and/or 5G neighbor cells;
and the terminal resides in a neighbor list, wherein the neighbor where the terminal resides comprises a 4G neighbor and/or a 5G neighbor.
To sum up, in the embodiment of the present invention, the source main base station sends the 5G neighbor information of the terminal reported by the terminal to the target main base station, the target main base station obtains the target auxiliary base station of the terminal through the 5G neighbor information transferred by the source main base station, and the target main base station does not need to issue a 5G measurement control message to the terminal, so that the terminal does not need to feed back a 5G measurement report; the method can ensure that the terminal is accessed to the target auxiliary base station, and can reduce the time delay added by the target auxiliary base station, thereby reducing the time delay of dual-connection switching.
It should be noted that the base station provided in the embodiments of the present invention is a base station capable of executing the dual connectivity handover method, and all embodiments of the dual connectivity handover method are applicable to the base station and can achieve the same or similar beneficial effects.
An embodiment of the present invention further provides a communication device, where the communication device is a target master base station of a terminal, and includes a memory, a processor, and a computer program that is stored in the memory and is executable on the processor, and when the processor executes the program, the processor implements each process in the foregoing dual connectivity switching method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements each process in the foregoing dual connectivity handover method embodiment, and can achieve the same technical effect, and details are not described here to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
As shown in fig. 6, an embodiment of the present invention further provides a dual connectivity switching apparatus, which is applied to a source master base station of a terminal, and includes:
a report reporting module 61, configured to send a measurement report reported by the terminal to a target primary base station of the terminal, where the measurement report includes: and 5G adjacent area information of the terminal.
Optionally, in the above embodiment of the present invention, the measurement report further includes: and 4G neighbor cell information of the terminal.
Optionally, in the above embodiment of the present invention, the apparatus further includes:
the measurement and control sending module is used for sending a measurement control message to the terminal, wherein the measurement control message comprises a 4G measurement control event and a 5G measurement control event;
and the receiving module is used for receiving a measurement report reported by the terminal, wherein the measurement report comprises 4G adjacent cell information of the terminal and 5G adjacent cell information of the terminal.
Optionally, in the above embodiment of the present invention, the 5G measurement control event is: and 4G measurement and control conditions are met.
Optionally, in the above embodiment of the present invention, the receiving module includes:
the receiving submodule is used for receiving a 4G A3 measurement report and a 4G B1 measurement report reported by the terminal, wherein the trigger threshold of a 4G B1 event corresponding to the 4G B1 measurement report is lower than a first preset value;
or, the terminal is configured to receive a 4G A3 measurement report and a 5G A2 measurement report reported by the terminal, where a trigger threshold of a 5G A2 event corresponding to the 5G A2 measurement report is lower than a second preset value;
or, the terminal is configured to receive a 4G A3 measurement report and a 5G A3 measurement report reported by the terminal, where a trigger threshold of a 5G A3 event corresponding to the 5G A3 measurement report is higher than a trigger threshold of a 4G A3 event corresponding to the 4G A3 measurement report.
Optionally, in the above embodiment of the present invention, the apparatus further includes:
a determining module, configured to determine, according to the 4G neighbor information of the terminal included in the measurement report, a target master base station to which the terminal is switched;
and the first reconfiguration module is used for sending a second RRC reconfiguration message to the terminal, wherein the second RRC reconfiguration message carries the identification information of the target main base station.
In summary, in the above embodiments of the present invention, before the main base station is switched, the 4G measurement report that is reported to the main base station of the source by the terminal needs to carry 5G neighbor information, or the 4G measurement report is preceded by the report of 5G neighbor information; the source main base station transmits a measurement report of the terminal to the target main base station through an X2 interface, the target main base station acquires a target auxiliary base station of the terminal through 5G neighbor information transmitted by the source main base station, and the target main base station does not need to send a 5G measurement control message to the terminal, so that the terminal does not need to feed back the 5G measurement report; the method can ensure that the terminal is accessed to the target auxiliary base station, and can reduce the time delay added by the target auxiliary base station, thereby reducing the time delay of dual-connection switching.
It should be noted that the dual connectivity switching apparatus provided in the embodiments of the present invention is an apparatus capable of executing the dual connectivity switching method, and all embodiments of the dual connectivity switching method are applicable to the apparatus and can achieve the same or similar beneficial effects.
As shown in fig. 5, an embodiment of the present invention further provides a base station, where the base station is a source master base station of a terminal, the base station includes a processor 500 and a transceiver 510, the transceiver 510 receives and transmits data under the control of the processor 500, and the processor 500 is configured to perform the following operations:
sending a measurement report reported by the terminal to a target main base station of the terminal, wherein the measurement report comprises: and 5G adjacent area information of the terminal.
Optionally, in the above embodiment of the present invention, the measurement report further includes: and 4G neighbor cell information of the terminal.
Optionally, in the above embodiment of the present invention, the processor is further configured to:
sending a measurement control message to the terminal, wherein the measurement control message comprises a 4G measurement control event and a 5G measurement control event;
and receiving a measurement report reported by the terminal, wherein the measurement report comprises 4G adjacent cell information of the terminal and 5G adjacent cell information of the terminal.
Optionally, in the above embodiment of the present invention, the 5G measurement control event is: and 4G measurement and control conditions are met.
Optionally, in the above embodiment of the present invention, the processor is further configured to:
receiving a 4G A3 measurement report and a 4G B1 measurement report reported by the terminal, wherein a trigger threshold of a 4G B1 event corresponding to the 4G B1 measurement report is lower than a first preset value;
alternatively, the first and second electrodes may be,
receiving a 4G A3 measurement report and a 5G A2 measurement report reported by the terminal, wherein a trigger threshold of a 5G A2 event corresponding to the 5G A2 measurement report is lower than a second preset value;
alternatively, the first and second electrodes may be,
and receiving a 4G A3 measurement report and a 5G A3 measurement report reported by the terminal, wherein the trigger threshold of a 5G A3 event corresponding to the 5G A3 measurement report is higher than the trigger threshold of a 4G A3 event corresponding to the 4G A3 measurement report.
Optionally, in the above embodiment of the present invention, the processor is further configured to:
determining a target main base station switched by the terminal according to the 4G neighbor cell information of the terminal contained in the measurement report;
and sending a second RRC reconfiguration message to the terminal, wherein the second RRC reconfiguration message carries the identification information of the target main base station.
In summary, in the above embodiments of the present invention, before the main base station is switched, the 4G measurement report that is reported to the main base station of the source by the terminal needs to carry 5G neighbor information, or the 4G measurement report is preceded by the report of 5G neighbor information; the source main base station transmits a measurement report of the terminal to the target main base station through an X2 interface, the target main base station acquires a target auxiliary base station of the terminal through 5G neighbor information transmitted by the source main base station, and the target main base station does not need to send a 5G measurement control message to the terminal, so that the terminal does not need to feed back the 5G measurement report; the method can ensure that the terminal is accessed to the target auxiliary base station, and can reduce the time delay added by the target auxiliary base station, thereby reducing the time delay of dual-connection switching.
It should be noted that the base station provided in the embodiments of the present invention is a base station capable of executing the dual connectivity handover method, and all embodiments of the dual connectivity handover method are applicable to the base station and can achieve the same or similar beneficial effects.
An embodiment of the present invention further provides a communication device, where the communication device is a source master base station of a terminal, and includes a memory, a processor, and a computer program that is stored in the memory and is executable on the processor, and when the processor executes the program, the processor implements each process in the foregoing dual connectivity switching method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements each process in the foregoing dual connectivity handover method embodiment, and can achieve the same technical effect, and details are not described here to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
As shown in fig. 7, an embodiment of the present invention further provides a dual connectivity switching apparatus, which is applied to a terminal, and includes:
a request receiving module 71, configured to receive a measurement control message sent by a source master base station of the terminal, where the measurement control message includes a 4G measurement control event and a 5G measurement control event;
a report reporting module 72, configured to perform 4G measurement and 5G measurement according to the measurement control message, and report a measurement report to the source host base station, where the measurement report includes 4G neighbor cell information of the terminal and 5G neighbor cell information of the terminal.
Optionally, in the above embodiment of the present invention, the 5G measurement control event is: and 4G measurement and control conditions are met.
Optionally, in the foregoing embodiment of the present invention, the report reporting module includes:
a report reporting submodule, configured to report a 4G A3 measurement report and a 4G B1 measurement report to the source primary base station, where a trigger threshold of a 4G B1 event corresponding to the 4G B1 measurement report is lower than a first preset value;
or reporting a 4G A3 measurement report and a 5G A2 measurement report to the source master base station, wherein the trigger threshold of a 5G A2 event corresponding to the 5G A2 measurement report is lower than a second preset value;
alternatively, the first and second electrodes may be,
and reporting a 4G A3 measurement report and a 5G A3 measurement report to the source main base station, wherein the trigger threshold of a 5G A3 event corresponding to the 5G A3 measurement report is higher than the trigger threshold of a 4G A3 event corresponding to the 4G A3 measurement report.
Optionally, in the above embodiment of the present invention, the apparatus further includes:
a first message receiving module, configured to receive a second RRC reconfiguration message sent by the source primary base station, where the second RRC reconfiguration message carries identification information of the target primary base station;
and the second switching module is used for switching from the source main base station to the target main base station according to the second RRC reconfiguration message.
Optionally, in the above embodiment of the present invention, the apparatus further includes:
a second message receiving submodule, configured to receive a first RRC reconfiguration message sent by the target master base station, where the first RRC reconfiguration message carries identification information of the target secondary base station;
and the access module is used for accessing the target auxiliary base station according to the first RRC reconfiguration message.
To sum up, in the embodiment of the present invention, the source main base station sends the 5G neighbor information of the terminal reported by the terminal to the target main base station, the target main base station obtains the target auxiliary base station of the terminal through the 5G neighbor information transferred by the source main base station, and the target main base station does not need to issue a 5G measurement control message to the terminal, so that the terminal does not need to feed back a 5G measurement report; the method can ensure that the terminal is accessed to the target auxiliary base station, and can reduce the time delay added by the target auxiliary base station, thereby reducing the time delay of dual-connection switching.
It should be noted that the dual connectivity switching apparatus provided in the embodiments of the present invention is an apparatus capable of executing the dual connectivity switching method, and all embodiments of the dual connectivity switching method are applicable to the apparatus and can achieve the same or similar beneficial effects.
As shown in fig. 8, an embodiment of the present invention further provides a terminal, which includes a processor 800 and a transceiver 810, and the terminal further includes a user interface 820, the transceiver 810 receives and transmits data under the control of the processor 800, and the processor 800 is configured to perform the following operations:
receiving a measurement control message sent by a source main base station of the terminal, wherein the measurement control message comprises a 4G measurement control event and a 5G measurement control event;
and performing 4G measurement and 5G measurement according to the measurement control message, and reporting a measurement report to the source main base station, wherein the measurement report comprises 4G adjacent cell information of the terminal and 5G adjacent cell information of the terminal.
Optionally, in the above embodiment of the present invention, the 5G measurement control event is: and 4G measurement and control conditions are met.
Optionally, in the above embodiment of the present invention, the processor is further configured to:
reporting a 4G A3 measurement report and a 4G B1 measurement report to the source master base station, wherein a trigger threshold of a 4G B1 event corresponding to the 4G B1 measurement report is lower than a first preset value;
alternatively, the first and second electrodes may be,
reporting a 4G A3 measurement report and a 5G A2 measurement report to the source master base station, wherein a trigger threshold of a 5G A2 event corresponding to the 5G A2 measurement report is lower than a second preset value;
alternatively, the first and second electrodes may be,
and reporting a 4G A3 measurement report and a 5G A3 measurement report to the source main base station, wherein the trigger threshold of a 5G A3 event corresponding to the 5G A3 measurement report is higher than the trigger threshold of a 4G A3 event corresponding to the 4G A3 measurement report.
Optionally, in the above embodiment of the present invention, the processor is further configured to:
receiving a second RRC reconfiguration message sent by the source main base station, wherein the second RRC reconfiguration message carries the identification information of the target main base station;
switching from the source primary base station to the target primary base station according to the second RRC reconfiguration message.
Optionally, in the above embodiment of the present invention, after the switching from the source master base station to the target master base station, the processor is further configured to:
receiving a first RRC reconfiguration message sent by the target main base station, wherein the first RRC reconfiguration message carries identification information of the target auxiliary base station;
and accessing the target auxiliary base station according to the first RRC reconfiguration message.
To sum up, in the embodiment of the present invention, the source main base station sends the 5G neighbor information of the terminal reported by the terminal to the target main base station, the target main base station obtains the target auxiliary base station of the terminal through the 5G neighbor information transferred by the source main base station, and the target main base station does not need to issue a 5G measurement control message to the terminal, so that the terminal does not need to feed back a 5G measurement report; the method can ensure that the terminal is accessed to the target auxiliary base station, and can reduce the time delay added by the target auxiliary base station, thereby reducing the time delay of dual-connection switching.
It should be noted that, the terminal provided in the embodiments of the present invention is a terminal capable of executing the dual connectivity switching method, and all embodiments of the dual connectivity switching method are applicable to the terminal and can achieve the same or similar beneficial effects.
An embodiment of the present invention further provides a communication device, where the communication device is a terminal and includes a memory, a processor, and a computer program that is stored in the memory and is executable on the processor, and when the processor executes the program, the processor implements each process in the foregoing dual connectivity switching method embodiment, and can achieve the same technical effect, and details are not described here to avoid repetition.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements each process in the foregoing dual connectivity handover method embodiment, and can achieve the same technical effect, and details are not described here to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block or blocks.
These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (24)

1. A dual-connection switching method is applied to a target main base station of a terminal, and is characterized by comprising the following steps:
receiving a measurement report reported by a terminal, which is sent by a source main base station of the terminal; the measurement report includes: 5G neighbor cell information of the terminal;
and after the terminal is switched from the source main base station to the target main base station, indicating the terminal to access the target auxiliary base station according to the 5G adjacent area information of the terminal contained in the measurement report.
2. The method of claim 1, wherein the measurement report further comprises: and 4G neighbor cell information of the terminal.
3. The method of claim 1, wherein the instructing the terminal to access the target secondary base station according to the 5G neighbor information of the terminal included in the measurement report comprises:
determining a target auxiliary base station of the terminal under a target main base station according to the 5G adjacent cell information of the terminal and the 5G adjacent cell of the target main base station, which are contained in the measurement report;
and if the 5G adjacent cell information of the terminal comprises the target auxiliary base station of the terminal, sending a first Radio Resource Control (RRC) reconfiguration message to the terminal, wherein the first RRC reconfiguration message carries the identification information of the target auxiliary base station.
4. The method of claim 3, wherein if the 5G neighbor information of the terminal does not include the target secondary base station of the terminal, the method further comprises:
sending a 5G measurement control message to the terminal, receiving a 5G measurement report reported by the terminal, and indicating the terminal to access a target auxiliary base station according to the 5G measurement report;
alternatively, the first and second electrodes may be,
and indicating the terminal to access the auxiliary base station in a blind handover mode.
5. The method according to claim 3, wherein the terminal history information of the target master base station includes:
the neighbor cell list measured by the terminal comprises 4G neighbor cells and/or 5G neighbor cells;
and the terminal resides in a neighbor list, wherein the neighbor where the terminal resides comprises a 4G neighbor and/or a 5G neighbor.
6. A dual connectivity switching method applied to a source master base station of a terminal, comprising:
sending a measurement report reported by the terminal to a target main base station of the terminal, wherein the measurement report comprises: and 5G adjacent area information of the terminal.
7. The method of claim 6, wherein the measurement report further comprises: and 4G neighbor cell information of the terminal.
8. The method of claim 7, wherein before the sending the measurement report reported by the terminal to a target master base station of the terminal, the method further comprises:
sending a measurement control message to the terminal, wherein the measurement control message comprises a 4G measurement control event and a 5G measurement control event;
and receiving a measurement report reported by the terminal, wherein the measurement report comprises 4G adjacent cell information of the terminal and 5G adjacent cell information of the terminal.
9. The method of claim 8, wherein the 5G measurement control event is: and 4G measurement and control conditions are met.
10. The method of claim 8, wherein the receiving the measurement report reported by the terminal comprises:
receiving a 4G A3 measurement report and a 4G B1 measurement report reported by the terminal, wherein a trigger threshold of a 4G B1 event corresponding to the 4G B1 measurement report is lower than a first preset value;
alternatively, the first and second electrodes may be,
receiving a 4G A3 measurement report and a 5G A2 measurement report reported by the terminal, wherein a trigger threshold of a 5G A2 event corresponding to the 5G A2 measurement report is lower than a second preset value;
alternatively, the first and second electrodes may be,
and receiving a 4G A3 measurement report and a 5G A3 measurement report reported by the terminal, wherein the trigger threshold of a 5G A3 event corresponding to the 5G A3 measurement report is higher than the trigger threshold of a 4G A3 event corresponding to the 4G A3 measurement report.
11. The method of claim 8, wherein after receiving the measurement report reported by the terminal, the method further comprises:
determining a target main base station switched by the terminal according to the 4G neighbor cell information of the terminal contained in the measurement report;
and sending a second RRC reconfiguration message to the terminal, wherein the second RRC reconfiguration message carries the identification information of the target main base station.
12. A dual-connection switching method is applied to a terminal and is characterized by comprising the following steps:
receiving a measurement control message sent by a source main base station of the terminal, wherein the measurement control message comprises a 4G measurement control event and a 5G measurement control event;
and performing 4G measurement and 5G measurement according to the measurement control message, and reporting a measurement report to the source main base station, wherein the measurement report comprises 4G adjacent cell information of the terminal and 5G adjacent cell information of the terminal.
13. The method of claim 12, wherein the 5G measurement control event is: and 4G measurement and control conditions are met.
14. The method of claim 12, wherein reporting the measurement report to the source master base station comprises:
reporting a 4G A3 measurement report and a 4G B1 measurement report to the source master base station, wherein a trigger threshold of a 4G B1 event corresponding to the 4G B1 measurement report is lower than a first preset value;
alternatively, the first and second electrodes may be,
reporting a 4G A3 measurement report and a 5G A2 measurement report to the source master base station, wherein a trigger threshold of a 5G A2 event corresponding to the 5G A2 measurement report is lower than a second preset value;
alternatively, the first and second electrodes may be,
and reporting a 4G A3 measurement report and a 5G A3 measurement report to the source main base station, wherein the trigger threshold of a 5G A3 event corresponding to the 5G A3 measurement report is higher than the trigger threshold of a 4G A3 event corresponding to the 4G A3 measurement report.
15. The method of claim 12, wherein after reporting the measurement report to the source master base station, the method further comprises:
receiving a second RRC reconfiguration message sent by the source main base station, wherein the second RRC reconfiguration message carries identification information of a target main base station;
switching from the source primary base station to the target primary base station according to the second RRC reconfiguration message.
16. The method of claim 15, wherein after the switching from the source master base station to the target master base station, the method further comprises:
receiving a first RRC reconfiguration message sent by the target main base station, wherein the first RRC reconfiguration message carries identification information of the target auxiliary base station;
and accessing the target auxiliary base station according to the first RRC reconfiguration message.
17. A dual connectivity switching apparatus applied to a target master base station of a terminal, comprising:
the report receiving module is used for receiving a measurement report reported by the terminal and sent by a source main base station of the terminal; the measurement report includes: 5G neighbor cell information of the terminal;
and the first switching module is used for indicating the terminal to access the target auxiliary base station according to the 5G adjacent area information of the terminal contained in the measurement report after the terminal is switched from the source main base station to the target main base station.
18. A base station, the base station being a target master base station for a terminal, the base station comprising a processor and a transceiver, the transceiver receiving and transmitting data under control of the processor, wherein the processor is configured to:
receiving a measurement report reported by a terminal, which is sent by a source main base station of the terminal; the measurement report includes: 5G neighbor cell information of the terminal;
and after the terminal is switched from the source main base station to the target main base station, indicating the terminal to access the target auxiliary base station according to the 5G adjacent area information of the terminal contained in the measurement report.
19. A dual connectivity switching apparatus applied to a source-master base station of a terminal, comprising:
a report reporting module, configured to send a measurement report reported by the terminal to a target master base station of the terminal, where the measurement report includes: and 5G adjacent area information of the terminal.
20. A base station, the base station being a source master base station for a terminal, the base station comprising a processor and a transceiver, the transceiver receiving and transmitting data under control of the processor, wherein the processor is configured to:
sending a measurement report reported by the terminal to a target main base station of the terminal, wherein the measurement report comprises: and 5G adjacent area information of the terminal.
21. A dual connectivity switching arrangement for a terminal, comprising:
a request receiving module, configured to receive a measurement control message sent by a source master base station of the terminal, where the measurement control message includes a 4G measurement control event and a 5G measurement control event;
and a report reporting module, configured to perform 4G measurement and 5G measurement according to the measurement control message, and report a measurement report to the source main base station, where the measurement report includes 4G neighbor cell information of the terminal and 5G neighbor cell information of the terminal.
22. A terminal comprising a processor and a transceiver, the transceiver receiving and transmitting data under control of the processor, characterized in that the processor is adapted to:
receiving a measurement control message sent by a source main base station of the terminal, wherein the measurement control message comprises a 4G measurement control event and a 5G measurement control event;
and performing 4G measurement and 5G measurement according to the measurement control message, and reporting a measurement report to the source main base station, wherein the measurement report comprises 4G adjacent cell information of the terminal and 5G adjacent cell information of the terminal.
23. A communication device comprising a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor implements the dual connectivity switching method according to any one of claims 1-5 when executing the program; or, the processor, when executing the program, implements the dual connectivity switching method according to any one of claims 6-11; alternatively, the processor implements the dual connectivity switching method according to any one of claims 12-16 when executing the program.
24. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of the dual connectivity handover method according to any one of claims 1 to 5; or the program is executed by a processor to implement the steps in the dual connectivity handover method according to any of claims 6-11; alternatively, the program realizes the steps in the dual connectivity handover method according to any of claims 12-16 when executed by a processor.
CN201911006642.1A 2019-10-22 2019-10-22 Dual-connection switching method, device, base station and terminal Pending CN112702768A (en)

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