CN111417159A - Switching method and base station - Google Patents
Switching method and base station Download PDFInfo
- Publication number
- CN111417159A CN111417159A CN202010230420.4A CN202010230420A CN111417159A CN 111417159 A CN111417159 A CN 111417159A CN 202010230420 A CN202010230420 A CN 202010230420A CN 111417159 A CN111417159 A CN 111417159A
- Authority
- CN
- China
- Prior art keywords
- base station
- terminal
- air interface
- cell
- channel
- 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.)
- Pending
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The application provides a switching method and a base station, wherein a first base station sends an instruction for establishing an air interface SRB channel for a terminal to a second base station under the condition that the signal intensity of a main cell of the terminal is lower than a threshold value, and sends a switching instruction to the terminal after the second base station completes the establishment of the air interface SRB channel, so that the terminal switches the main cell of the first base station to an auxiliary cell, and switches the auxiliary cell of the second base station to the main cell. Therefore, according to the technical scheme provided by the application, the terminal switches the main cell of the first base station to the auxiliary cell under the condition that the signal intensity of the main cell of the first base station is lower than the threshold value, that is, in the process of switching the main cell and the auxiliary cell, the communication connection is always kept between the terminal and the two base stations, so that the problem of signal interruption is avoided, and the communication quality of a user is improved.
Description
Technical Field
The present application relates to the field of electronic information, and in particular, to a handover method and a base station.
Background
Currently, the realization of global coverage of wireless internet through satellites is a hot research field. The low-orbit satellite communication network has the advantages of wide coverage range, low transmission delay, low link power consumption, strong survivability and the like, so the low-orbit satellite communication network has wide development prospect in the field of satellite communication.
Since the low-earth orbit satellite and the earth move relatively, the relative movement speed is up to 8km/s, that is, the wireless cell of the low-earth orbit satellite moves rapidly, the terminal needs to be frequently switched from the wireless cell of one low-earth orbit satellite to the wireless cell of another low-earth orbit satellite during the communication process.
In the existing switching method of 5G communication for low earth orbit satellite communication, a hard switching mode is adopted, that is, after a terminal is disconnected from a first base station of original communication, the terminal is connected with a second base station to be communicated, so that the problem that the signal is disconnected in the communication process of the terminal is likely to occur, and the communication quality of a user is reduced.
Disclosure of Invention
The application provides a method and a device, and aims to solve the problem of improving the communication quality of a user in a scene of communication by using a low-earth orbit satellite.
In order to achieve the above object, the present application provides the following technical solutions:
a method of handover, comprising:
under the condition that the signal intensity of a main cell of a terminal is lower than a threshold value, a first base station sends an instruction for establishing an air interface SRB (Signaling Radio Bearers) channel for the terminal to a second base station; the first base station is a base station providing the terminal with the primary cell, and the second base station is a base station providing the terminal with the secondary cell;
and after receiving the information of the air interface SRB channel setup completion fed back by the second base station, the first base station sends a switching instruction to the terminal, wherein the switching instruction carries the information of the air interface SRB channel of the second base station, so that the terminal executes switching between the main cell and the auxiliary cell according to the information of the air interface SRB channel.
In the foregoing method, optionally, before the first base station sends the handover command to the terminal, the method further includes:
and after receiving the request for acquiring the user plane uplink data of the terminal sent by the second base station, the first base station sends the user plane uplink data of the terminal to the second base station.
The above method, optionally, further includes:
and after receiving a link interruption message sent by a core network, the first base station releases a link with the core network.
Optionally, the method further includes that the first base station releases the SRB channel with the terminal after determining that the terminal is not in the coverage of the cell of the first base station.
Optionally, in the method, before the first base station sends, to the second base station, an instruction to establish an air interface SRB channel for the terminal, the method further includes:
the first base station sends the user plane downlink data of the terminal to the second base station through a base station link, so that the second base station sends the user plane downlink data to the terminal through a DRB (data Radio Bearers ) channel.
A method of handover, comprising:
after receiving an instruction sent by a first base station for establishing an air interface SRB channel for a terminal, a second base station establishes the air interface SRB channel for the terminal; the first base station is a base station providing a main cell for the terminal, the second base station is a base station providing a secondary cell for the terminal, and the first base station sends the instruction to the second base station under the condition that the signal intensity of the main cell of the terminal is lower than a threshold value;
after the air interface SRB channel is established, the second base station feeds back information of the air interface SRB channel establishment completion to the first base station so that the first base station sends a switching instruction to the terminal, wherein the switching instruction carries the information of the air interface SRB channel, and the terminal executes switching between a main cell and an auxiliary cell according to the information of the air interface SRB channel;
and the second base station sends a core network link switching request to a core network, so that the core network switches the link between the core network and the first base station to the second base station.
The method described above, optionally, further comprising,
and the second base station sends a request for acquiring the user plane uplink data of the terminal to the first base station so that the first base station sends the user plane uplink data of the terminal to the second base station.
Optionally, in the method, before the second base station receives the instruction sent by the first base station to establish the air interface SRB channel for the terminal, the method further includes:
and the second base station receives the user plane downlink data of the terminal sent by the second base station through a base station link and sends the user plane downlink data to the terminal through a DRB channel.
A base station, comprising: a memory for storing a program and a processor for running the program to implement the above-described handover method.
In the technical scheme provided in this embodiment, the first base station sends, to the second base station, an instruction to establish an air interface SRB channel for the terminal when the signal strength of the primary cell of the terminal is lower than the threshold, and sends, to the terminal, a handover instruction after the second base station completes establishment of the air interface SRB channel, so that the terminal switches the primary cell of the first base station to the secondary cell, and switches the secondary cell of the second base station to the primary cell. Therefore, according to the technical scheme provided by the application, under the condition that the signal intensity of the main cell of the first base station is lower than the threshold value, the terminal switches the main cell of the first base station into the auxiliary cell and switches the auxiliary cell of the second base station into the main cell, namely, in the process of switching the main cell and the auxiliary cell, communication connection is always kept between the terminal and the two base stations, so that the problem of signal interruption is avoided, and the communication quality of a user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a handover method disclosed in an embodiment of the present application;
fig. 2 is a flowchart of another handover method disclosed in the embodiment of the present application;
fig. 3 is a schematic structural diagram of a switching device disclosed in an embodiment of the present application;
fig. 4 is a schematic structural diagram of another switching device disclosed in the embodiment of the present application;
fig. 5 is a schematic structural diagram of a base station disclosed in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The method provided by the embodiment of the application is suitable for realizing a 5G communication scene by using the low-earth orbit satellite. Fig. 1 is a handover method provided in an embodiment of the present application, which may include the following steps:
s101, under the condition that the signal intensity of a main cell of the terminal is lower than a threshold value, the first base station sends an instruction for establishing an air interface SRB channel for the terminal to the second base station.
The first base station is a base station for providing a main cell for the terminal, the second base station is a base station for providing a secondary cell for the terminal, and the first base station and the second base station are connected through a link between the base stations. Under the condition that the terminal is accessed into the main cell and the auxiliary cell, the first base station can determine the signal intensity of the main cell of the terminal by detecting the data transmission state between the first base station and the terminal, and sends an instruction for establishing an air interface SRB channel for the terminal to the second base station through the inter-base station link under the condition that the signal intensity of the main cell of the terminal is lower than the threshold value, or sends an instruction for establishing the air interface SRB channel for the terminal to the second base station through the inter-base station link after the first base station receives the signal that the signal of the main cell reported by the terminal is lower than the threshold value.
S102, the second base station establishes an air interface SRB channel for the terminal.
The air interface SRB channel is used to transmit an RRC (Radio Resource Control) message and an NAS (Non-Access Stratum) message between the base station and the terminal, and in this embodiment, a specific process of the base station to establish the air interface SRB channel may refer to the prior art.
S103, the second base station feeds back the information of the completion of the establishment of the air interface SRB channel to the first base station.
And after finishing the establishment of the air interface SRB channel, the second base station feeds back the information of the establishment of the air interface SRB channel to the first base station through the inter-base station link.
S104, the first base station sends a switching instruction to the terminal.
And after receiving the information of the air interface SRB channel establishment completion fed back by the second base station, the first base station sends a switching instruction to the terminal, wherein the switching instruction carries the information of the air interface SRB channel. The switching command may be issued to the terminal through the SRB1 channel of the air interface SRB channel of the primary cell, or may be issued to the terminal through the SRB1 channel of the air interface SRB channel of the primary cell and the SRB2 channel of the air interface SRB channel of the secondary cell at the same time. Wherein, the SRBs 1 and the SRBs 2 are different types of air interface SRB channels.
And S105, the terminal executes the switching between the main cell and the auxiliary cell according to the information of the air interface SRB channel.
Specifically, after receiving the handover command, the terminal releases air interface SRB channel resources of the primary cell of the first base station, establishes SRB1 channel and SRB2 channel connection with the second base station according to the information of the air interface SRB channel of the secondary cell of the second base station carried in the handover command, and completes handover between the primary cell and the secondary cell, that is, the cell of the first base station is used as the secondary cell, the cell of the second base station is used as the primary cell, and the air interface SRB channel of the second base station is used to send handover completion information to the second base station.
In the method provided in this embodiment, the first base station sends, to the second base station, an instruction to establish an air interface SRB channel for the terminal when the signal strength of the primary cell of the terminal is lower than the threshold, and sends, to the terminal, a handover instruction after the second base station completes establishment of the air interface SRB channel, so that the terminal switches the primary cell of the first base station to the secondary cell, and switches the secondary cell of the second base station to the primary cell. Therefore, according to the technical scheme provided by the application, the terminal switches the main cell of the first base station to the auxiliary cell under the condition that the signal intensity of the main cell of the first base station is lower than the threshold value, that is, in the process of switching the main cell and the auxiliary cell, the communication connection is always kept between the terminal and the two base stations, so that the problem of signal interruption is avoided, and the communication quality of a user is improved.
Fig. 2 is another handover method provided in the embodiment of the present application, which may include the following steps:
s201, the terminal accesses a primary cell of the first base station and a secondary cell of the second base station.
And the terminal accesses the auxiliary cell of the second base station after detecting the signal of the auxiliary cell of the second base station under the condition of accessing the main cell of the first base station, and enters a double-connection state. The process of accessing the cell by the terminal may refer to the prior art.
S202, the first base station sends user plane downlink data of the terminal to the second base station through the base station link.
After the terminal enters the dual connectivity state, the first base station sends the user plane downlink data of the terminal to the second base station through the inter-base station link between the first base station and the second base station, so that the second base station sends the user plane downlink data to the terminal through a DRB (data Radio Bearers) channel simultaneously with the first base station.
And S203, under the condition that the signal intensity of the main cell of the terminal is lower than the threshold value, the first base station sends an instruction for establishing an air interface SRB channel for the terminal to the second base station.
And when the first base station detects that the signal intensity of the main cell of the terminal is lower than a threshold value or receives information that the signal intensity of the main cell reported by the terminal is lower than the threshold value, the first base station sends an instruction for establishing an air interface SRB channel for the terminal to the second base station.
And S204, the second base station establishes an air interface SRB channel for the terminal.
And after receiving the instruction for establishing the air interface SRB channel sent by the first base station, the second base station establishes the air interface SRB channel for the terminal according to a preset air interface SRB channel establishment rule.
And S205, the second base station sends an air interface SRB channel establishment completion signal to the first base station, and acquires a user plane uplink data signal of the terminal.
Before the terminal performs the switching between the main cell and the auxiliary cell, the uplink data of the user plane is only sent to the first base station through the main cell of the first base station, so that the second base station sends the completion of the establishment of the air interface SRB channel to the first base station after the establishment of the air interface SRB channel is completed, and a signal of the uplink data of the user plane of the terminal is obtained.
S206, the first base station sends the user plane uplink data to the second base station.
And the first base station forwards the acquired user plane uplink data to the second base station based on the received signal of the second base station for acquiring the user plane uplink data of the terminal.
S207, the second base station sends a core network link switching request to the core network, so that the core network switches the link between the core network and the first base station to the second base station.
In this embodiment, after receiving the user plane uplink data sent by the first base station, the second base station may send a core network link switching request to the core network, so that the core network switches the link with the first base station to the second base station, and a core network link is established between the second base station and the core network. The specific process of the core network switching the link between the core network and the first base station to the second base station is as follows: the core network sends a link interruption message to the first base station, wherein the link interruption message can be an Endmarker message, so that the first base station releases a link with the core network after receiving the End marker message, and meanwhile, the core network establishes a core network link with the first base station.
S208, the first base station sends a switching instruction to the terminal.
It should be noted that the first base station may send the handover command to the terminal after releasing the link with the core network, or may send the handover command to the terminal after completing sending the user plane uplink data to the second base station, where the order of sending the handover command does not affect the implementation of this embodiment. For a specific implementation manner of the first base station sending the handover command to the terminal, reference may be made to S104 in the foregoing embodiment, which is not described herein again.
And S209, the terminal executes the switching between the main cell and the auxiliary cell according to the information of the SRB channel of the air interface.
And after receiving the switching instruction sent by the first base station, the terminal executes the switching between the main cell and the auxiliary cell. For a specific implementation of this step, reference may be made to S104 in the foregoing embodiment, which is not described herein again.
S210, the first base station releases the SRB channel with the terminal.
And then the terminal moves out of the coverage area of the cell of the first base station, and the first base station releases the SRB channel with the terminal after determining that the terminal is not in the coverage area of the cell according to the air interface link state, so that the waste of SRB channel resources is avoided.
In the method provided in this embodiment, when the terminal is in a dual-connection state, the first base station sends the user plane downlink data to the second base station, so that the second base station can send the user plane downlink data to the terminal simultaneously with the first base station, and when the signal strength of the primary cell of the terminal is lower than the threshold value, the second base station sets up the command of air interface SRB channel for the terminal, and obtains the user interface uplink data from the first base station, so, before the terminal does not complete the handover between the primary cell and the secondary cell, the second base station has already acquired the user plane data of the terminal, and the first base station releases the SRB channel with the terminal only after the terminal completes the switching between the main cell and the auxiliary cell, therefore, in the process of switching the main cell and the auxiliary cell, the communication connection is always kept between the terminal and the two base stations, so that the problem of signal interruption is avoided, and the communication quality of a user is improved.
Fig. 3 is a schematic structural diagram of a handover apparatus 300 according to an embodiment of the present application, applied to a first base station, including:
a first sending unit 301, configured to send, to a second base station, an instruction to establish an air interface SRB channel for a terminal when a signal strength of a primary cell of the terminal is lower than a threshold, where the first base station is a base station that provides the primary cell for the terminal, and the second base station is a base station that provides a secondary cell for the terminal.
A second sending unit 302, configured to send a switching instruction to the terminal after receiving information that the establishment of the air interface SRB channel fed back by the second base station is completed, where the switching instruction carries information of the air interface SRB channel of the second base station, so that the terminal performs switching between the primary cell and the secondary cell according to the information of the air interface SRB channel.
Optionally, the above-mentioned switching apparatus 300 further includes a releasing unit 303, configured to release a link with the core network after receiving a link interruption message sent by the core network, and release an SRB channel with the terminal after determining that the terminal is not in the coverage of the cell of the first base station.
Optionally, the first sending unit 301 is further configured to send the user plane uplink data of the terminal to the second base station after receiving the request for obtaining the user plane uplink data of the terminal sent by the second base station.
Optionally, the first sending unit 301 is further configured to send user plane downlink data of the terminal to the second base station through the base station link, so that the second base station sends the user plane downlink data to the terminal through the DRB channel.
The apparatus provided in this embodiment sends, to the second base station, an instruction to establish an air interface SRB channel for the terminal when the signal strength of the primary cell of the terminal is lower than the threshold, and sends, to the terminal, a switching instruction after the second base station completes establishment of the air interface SRB channel, so that the terminal switches the primary cell of the first base station to the secondary cell, and switches the secondary cell of the second base station to the primary cell. Therefore, according to the technical scheme provided by the application, the terminal switches the main cell of the first base station to the auxiliary cell under the condition that the signal intensity of the main cell of the first base station is lower than the threshold value, that is, in the process of switching the main cell and the auxiliary cell, the communication connection is always kept between the terminal and the two base stations, so that the problem of signal interruption is avoided, and the communication quality of a user is improved.
Fig. 4 is a schematic structural diagram of a handover apparatus 300 according to an embodiment of the present application, applied to a second base station, including:
an establishing unit 401, configured to establish an air interface SRB channel for a terminal after receiving an instruction sent by a first base station to establish the air interface SRB channel for the terminal, where the first base station is a base station that provides a main cell for the terminal, and the first base station sends the instruction to a second base station when a signal strength of the main cell of the terminal is lower than a threshold, and the second base station is a base station that provides an auxiliary cell for the terminal.
A feedback unit 402, configured to feed back information of completing establishment of an air interface SRB channel to the first base station after the establishment of the air interface SRB channel is completed, so that the first base station sends a switching instruction to the terminal, where the switching instruction carries information of the air interface SRB channel, so that the terminal performs switching between the primary cell and the secondary cell according to the information of the air interface SRB channel.
A sending unit 403, configured to send a core network link switching request to the core network, so that the core network switches the link with the first base station to the second base station.
Optionally, the above-mentioned switching apparatus 400 further includes a receiving unit 404, configured to receive the uplink data of the user plane of the terminal sent by the first base station, and receive the downlink data of the user plane of the terminal sent by the first base station through the base station link.
Optionally, the sending unit 403 is further configured to send a request for obtaining the user plane uplink data of the terminal to the first base station, so that the first base station sends the user plane uplink data of the terminal to the second base station, and sends the user plane downlink data to the terminal through the DRB channel.
The apparatus provided in this embodiment establishes an air interface SRB channel for a terminal after receiving an instruction sent by a first base station to establish the air interface SRB channel for the terminal, and sends a handover instruction to the terminal after completing establishment of the air interface SRB channel, so that the terminal switches a primary cell of the first base station to an auxiliary cell, and switches an auxiliary cell of a second base station to the primary cell. Therefore, according to the technical scheme provided by the application, the terminal switches the main cell of the first base station to the auxiliary cell under the condition that the signal intensity of the main cell of the first base station is lower than the threshold value, that is, in the process of switching the main cell and the auxiliary cell, the communication connection is always kept between the terminal and the two base stations, so that the problem of signal interruption is avoided, and the communication quality of a user is improved.
The present application further provides a base station 500, a schematic structural diagram of which is shown in fig. 5, including: a memory 501 and a processor 502, wherein the memory 501 is used for storing programs, and the processor 502 is used for running the programs so as to realize the switching method.
The functions described in the method of the embodiment of the present application, if implemented in the form of software functional units and sold or used as independent products, may be stored in a storage medium readable by a computing device. Based on such understanding, part of the contribution to the prior art of the embodiments of the present application or part of the technical solution may be embodied in the form of a software product stored in a storage medium and including several instructions for causing a computing device (which may be a personal computer, a server, a mobile computing device or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method of handover, comprising:
under the condition that the signal intensity of a main cell of a terminal is lower than a threshold value, a first base station sends an instruction for establishing an air interface Signaling Radio Bearer (SRB) channel for the terminal to a second base station; the first base station is a base station providing the terminal with the primary cell, and the second base station is a base station providing the terminal with the secondary cell;
and after receiving the information of the air interface SRB channel setup completion fed back by the second base station, the first base station sends a switching instruction to the terminal, wherein the switching instruction carries the information of the air interface SRB channel of the second base station, so that the terminal executes switching between the main cell and the auxiliary cell according to the information of the air interface SRB channel.
2. The method of claim 1, wherein before sending the handover command to the terminal, the first base station further comprises:
and after receiving the request for acquiring the user plane uplink data of the terminal sent by the second base station, the first base station sends the user plane uplink data of the terminal to the second base station.
3. The method of claim 1, further comprising:
and after receiving a link interruption message sent by a core network, the first base station releases a link with the core network.
4. The method of claim 1, further comprising releasing the SRB channel with the terminal by the first base station after determining that the terminal is not in the coverage of the cell of the first base station.
5. The method according to claim 1, wherein before the first base station sending the instruction for establishing the air interface SRB channel for the terminal to the second base station, the method further comprises:
and the first base station sends the user plane downlink data of the terminal to the second base station through a base station link, so that the second base station sends the user plane downlink data to the terminal through a Data Radio Bearer (DRB) channel.
6. A method of handover, comprising:
after receiving an instruction sent by a first base station for establishing an air interface SRB channel for a terminal, a second base station establishes the air interface SRB channel for the terminal; the first base station is a base station providing a main cell for the terminal, the second base station is a base station providing a secondary cell for the terminal, and the first base station sends the instruction to the second base station under the condition that the signal intensity of the main cell of the terminal is lower than a threshold value;
after the air interface SRB channel is established, the second base station feeds back information of the air interface SRB channel establishment completion to the first base station so that the first base station sends a switching instruction to the terminal, wherein the switching instruction carries the information of the air interface SRB channel, and the terminal executes switching between a main cell and an auxiliary cell according to the information of the air interface SRB channel;
and the second base station sends a core network link switching request to a core network, so that the core network switches the link between the core network and the first base station to the second base station.
7. The method of claim 6, further comprising,
and the second base station sends a request for acquiring the user plane uplink data of the terminal to the first base station so that the first base station sends the user plane uplink data of the terminal to the second base station.
8. The method according to claim 6, wherein before receiving the instruction sent by the first base station to establish the air interface SRB channel for the terminal, the second base station further includes:
and the second base station receives the user plane downlink data of the terminal sent by the second base station through a base station link and sends the user plane downlink data to the terminal through a DRB channel.
9. A base station, comprising:
a memory for storing a program and a processor for executing the program to implement the handover method of any one of claims 1 to 5.
10. A base station, comprising:
a memory for storing a program and a processor for executing the program to implement the handover method of any one of claims 6 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010230420.4A CN111417159A (en) | 2020-03-27 | 2020-03-27 | Switching method and base station |
| PCT/CN2021/078092 WO2021190244A1 (en) | 2020-03-27 | 2021-02-26 | Switching method and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010230420.4A CN111417159A (en) | 2020-03-27 | 2020-03-27 | Switching method and base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111417159A true CN111417159A (en) | 2020-07-14 |
Family
ID=71494802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010230420.4A Pending CN111417159A (en) | 2020-03-27 | 2020-03-27 | Switching method and base station |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111417159A (en) |
| WO (1) | WO2021190244A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021190244A1 (en) * | 2020-03-27 | 2021-09-30 | 海能达通信股份有限公司 | Switching method and base station |
| CN116546577A (en) * | 2023-07-07 | 2023-08-04 | 中赣通信(集团)有限公司 | Multi-base-station intelligent scheduling method and system for communication switching |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6637617B2 (en) * | 2016-03-31 | 2020-01-29 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Communication method, network-side device, and user terminal |
| WO2017166293A1 (en) * | 2016-04-01 | 2017-10-05 | 华为技术有限公司 | Mobility management method, device and system |
| CN110169192B (en) * | 2017-01-06 | 2023-06-16 | 瑞典爱立信有限公司 | Radio network node, wireless device, and method performed therein for handling connections in a wireless communication network |
| WO2019041095A1 (en) * | 2017-08-28 | 2019-03-07 | 北京小米移动软件有限公司 | Method, apparatus, and system for base station handover |
| CN109803330B (en) * | 2017-11-16 | 2021-01-15 | 维沃移动通信有限公司 | Processing method of radio bearer and network equipment |
| CN111417159A (en) * | 2020-03-27 | 2020-07-14 | 海能达通信股份有限公司 | Switching method and base station |
-
2020
- 2020-03-27 CN CN202010230420.4A patent/CN111417159A/en active Pending
-
2021
- 2021-02-26 WO PCT/CN2021/078092 patent/WO2021190244A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021190244A1 (en) * | 2020-03-27 | 2021-09-30 | 海能达通信股份有限公司 | Switching method and base station |
| CN116546577A (en) * | 2023-07-07 | 2023-08-04 | 中赣通信(集团)有限公司 | Multi-base-station intelligent scheduling method and system for communication switching |
| CN116546577B (en) * | 2023-07-07 | 2023-09-26 | 中赣通信(集团)有限公司 | Multi-base-station intelligent scheduling method and system for communication switching |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021190244A1 (en) | 2021-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110366224B (en) | Signaling optimization method, device, computer readable storage medium and communication system | |
| JP4625034B2 (en) | Direct transition to CELL_DCH | |
| CN113812208B (en) | User equipment coordination set for out-of-mode | |
| US20220110025A1 (en) | Link switching method and communication device | |
| KR101959937B1 (en) | Radio resource control rrc connection method and apparatus and rrc reconnection method and apparatus | |
| CN107466115B (en) | Radio bearer configuration method and device of wearable equipment | |
| US11272411B2 (en) | Method and apparatus for determining state of terminal device | |
| CN108377548B (en) | Mobility management method, UE and communication system | |
| EP4247061A1 (en) | Communication method, apparatus, and system | |
| CN107454636B (en) | Apparatus and method for processing context of access layer of user terminal | |
| KR20150065874A (en) | Method for switching device-to-device communication, base station, and communication system | |
| CN108347725B (en) | Communication method and apparatus | |
| WO2021190244A1 (en) | Switching method and base station | |
| US10425872B2 (en) | Network switching method, system, and network side device | |
| CN115804172A (en) | Information processing method, terminal equipment and network equipment | |
| CN115516914A (en) | Method and device for switching | |
| WO2022011519A1 (en) | Data transmission method and terminal device | |
| WO2012149788A1 (en) | Service establishment method and system, radio network controller and user terminal | |
| CN109548191B (en) | RRC connection reestablishment method, RRC connection recovery method, computer-readable storage medium, and base station | |
| CN116530144A (en) | Quality of service parameter processing method, terminal equipment, network function entity and network equipment | |
| US20230370922A1 (en) | Method for entering connected mode, and terminal device | |
| WO2023010987A1 (en) | Communication method and device and storage medium | |
| US20230123866A1 (en) | Data transmission method and network device | |
| CN115802407A (en) | Measurement control method and terminal device | |
| CN115589643A (en) | Data processing method and device |
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 |