CN108377521B - Cell switching method, cell redirection method and base station - Google Patents
Cell switching method, cell redirection method and base station Download PDFInfo
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- CN108377521B CN108377521B CN201611072506.9A CN201611072506A CN108377521B CN 108377521 B CN108377521 B CN 108377521B CN 201611072506 A CN201611072506 A CN 201611072506A CN 108377521 B CN108377521 B CN 108377521B
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
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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
- H04W36/0055—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
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Abstract
The invention provides a cell switching method, a cell redirection method and a base station. The invention controls the terminal to disconnect with the cell executing the service and establish connection with other cells based on the bearing release of the specific service, so that the terminal can quickly enter into another cell after the service is executed in one cell, the network capacity pressure caused by the terminal occupying the resources of a certain cell network for a long time is avoided, the resource utilization among the cells is more balanced, and the network resource efficiency can be improved.
Description
Technical Field
The invention relates to the technical field of mobile communication, in particular to a cell switching method, a cell redirection method and a base station.
Background
Because there are respective advantages between different standard networks, in actual network operation, it is often desired to carry some specific types of services executed by the terminal by a special standard network, so that each network can give full play to its own advantages, and after the service is finished, it is desired that the terminal can quickly return to the original standard network. In the prior art, after the service is finished, when a terminal (UE) returns to an idle state, the terminal returns to the original system network through cell reselection. If the terminal is in the data connection state, the terminal cannot quickly return to the original system cell, and therefore new system network resources are occupied.
In the prior art, when a terminal enters an idle state, the terminal returns to a cell of an original system network according to a cell reselection criterion, and if the terminal is always in a connected state, the terminal cannot return to the cell of the original system network in time, which causes a certain capacity pressure to a cell of a new system network.
Disclosure of Invention
The technical problem to be solved in the embodiments of the present invention is to provide a cell switching method, a cell redirection method, and a base station, so as to enable a terminal to leave a cell quickly after a specific service is performed in the cell.
To solve the foregoing technical problem, a cell switching method provided in an embodiment of the present invention is applied to a first cell of a first standard, and includes:
the first cell detects that the first service performed by the first terminal in the cell is executed and ended;
the first cell judges whether the first terminal is a terminal which is switched from other cells to the cell to carry out the preset type of service;
and when the first terminal is a terminal which is switched from other cells to the cell to perform the preset type of service, the first cell sends a connection reconfiguration message carrying a neighboring cell with a second standard as a measurement object to the terminal, wherein the second standard is the standard of the other cells.
An embodiment of the present invention further provides a base station, including:
a detecting unit, configured to detect whether a first service performed by a first terminal in a first cell of a first standard of a base station is executed and ended;
a determining unit, configured to determine, when a first service performed by a first terminal in a first cell is executed and ended, whether the first terminal is a terminal that performs a service of a preset type by switching from another cell to the first cell;
a reconfiguration unit, configured to send, to the terminal, a connection reconfiguration message carrying a neighboring cell with a measurement object of a second standard, where the second standard is a standard of the other cell, where the first terminal is a terminal that performs the preset type of service by switching from the other cell to the first cell.
The embodiment of the invention also provides a method for cell redirection, which is applied to a first cell of a first standard and comprises the following steps:
the first cell detects that the first service performed by the terminal in the cell is executed and ended;
judging whether the service type of the first service belongs to a preset type with a redirection attribute configured in advance, wherein the redirection attribute comprises redirected target cell system information;
and when the service type of the first service belongs to a preset type with a preset redirection attribute, sending a connection release message carrying the redirected target cell type to the terminal.
An embodiment of the present invention further provides a base station, including:
a detecting unit, configured to detect whether a first service performed by a terminal in a first cell of a first standard of a base station is executed and ended;
a determining unit, configured to determine, when a first service performed by the terminal in a first cell is executed and ended, whether a service type of the first service belongs to a preset type in which a redirection attribute is configured in advance, where the redirection attribute includes redirection target cell format information;
and the redirecting unit is used for sending a connection release message carrying a redirected target cell type to the terminal when the service type of the first service belongs to a preset type with a redirecting attribute configured in advance.
Compared with the prior art, the cell switching method, the cell redirection method and the base station provided by the embodiment of the invention control the terminal to be disconnected with the cell executing the service and establish connection with other cells based on the bearing release of the specific service, so that the terminal can quickly enter another cell after the service is executed in one cell, the network capacity pressure caused by the fact that the terminal occupies the resources of a certain cell network for a long time is avoided, the resource utilization among the cells is more balanced, and the network resource efficiency can be improved.
Drawings
Fig. 1 is a schematic flow chart of a cell switching method according to an embodiment of the present invention;
fig. 2 is another schematic flow chart of a cell handover method according to an embodiment of the present invention;
fig. 3 is a schematic view of an application scenario of the cell switching method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a cell redirection method according to an embodiment of the present invention;
fig. 6 is another schematic structural diagram of a base station 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. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In addition, the terms "system" and "network" are often used interchangeably herein. It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship. In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
In the embodiment of the present invention, the Base Station may be a Macro Base Station (Macro Base Station), a micro Base Station (Pico Base Station), a Node B (3G mobile Station), an enhanced Base Station (eNB), a Home enhanced Base Station (Femto eNB or Home eNode B or Home eNB or HeNB), a relay Station, an access point, an RRU (Remote Radio Unit), an RRH (Remote Radio Head), and the like. The terminal may be a mobile phone (or handset), or other device capable of sending or receiving wireless signals, including a User Equipment (UE), a Personal Digital Assistant (PDA), a wireless modem, a wireless communicator, a handheld device, a laptop computer, a cordless phone, a Wireless Local Loop (WLL) station, a CPE (Customer Premise Equipment) or mobile smart hotspot capable of converting mobile signals to WiFi signals, a smart appliance, or other device capable of autonomously communicating with a mobile communication network without human operation, etc.
< example one >
Referring to fig. 1, a cell switching method provided in an embodiment of the present invention is applied to a first cell of a first standard, and includes:
step 11, the first cell detects that the first service performed by the first terminal in the cell is executed and ended.
Here, the first cell is a cell of a first standard, and the first standard may be any one of an existing network and various possible network standards in the future. For example, the existing network standard includes a GSM network standard of a 2G network; TD-SCDMA network system, WCDMA network system and CDMA2000 network system of the 3G network; TDD-LTE network and FDD-LTE network of 4G network; 5G networks and future nr (new radio) networks.
Here, when the first cell detects that the first service performed by the first terminal in the first cell is ended, the following step 12 is performed, and a specific manner of detecting whether the service is ended may include: when receiving a message that requires to release the resource of the first service and is sent by the core network, for example, assuming that the QCI corresponding to the first service is x, and receiving a bearer that requests to release the qos class flag QCI ═ x and is sent by a Mobility Management Entity (MME), the first service is considered to have ended.
And step 12, the first cell judges whether the first terminal is a terminal which is switched from other cells to the cell to perform the preset type of service.
Here, the first cell determines whether the first terminal is a terminal that performs a preset type of service by switching from another cell to the cell, where the other cell (hereinafter referred to as a second cell, and a standard of the second cell is assumed to be a second standard, and hereinafter also referred to as an original standard) is usually a cell different from the first standard, for example, the first service is more suitable for being performed in a first cell of the first standard, and the network may control the first terminal to switch from the second cell to the first cell to perform the first service, so that advantages of networks of different standards may be fully utilized, and user experience of the network may be improved.
The embodiment of the invention configures the preset type of the service for the first cell in advance. The preset type of the service may be characterized by a value of a QCI of a bearer (RB) of the service, for example, a service corresponding to a bearer having a QCI ═ X is pre-selected as the preset type of service.
Here, when the first terminal is a terminal that performs the preset type of service by switching from another cell to the local cell, the first cell controls the first terminal to switch back to the cell of the original system. Of course, the original system cell switched back here is not necessarily the second system cell, and may be the same cell as the second system. Specifically, in step 13, the first cell selects a neighboring cell of the second standard from the neighboring cells of the cell, and then sends a Connection Reconfiguration message, such as an RRC Connection Reconfiguration message, carrying the neighboring cell of the second standard as a measurement object to the first terminal. Here, the second standard is a standard of a cell in which the first terminal is located before being handed over to the first cell. The number of the neighboring cells carried in the connection reconfiguration message may be 1 or more.
The neighboring cell of the first cell may be generated in one or more of the following ways: obtaining the adjacent cell of the first cell according to the pre-configuration of the network manager; measuring and obtaining a neighboring cell of the first cell by a base station to which the first cell belongs; and generating the adjacent cell of the first cell according to the measurement report of each terminal.
In step 13, the first cell may send a bearer release message (for example, a bearer with a QCI ═ X release) for the first service to the first terminal, and then send the connection reconfiguration message.
In the above steps of the embodiment of the present invention, when the first terminal finishes the first service, the first terminal in the connected state is controlled to measure the original system cell to switch to the original system cell, and it is not necessary to wait for the first terminal to enter the idle state and then return to the original system cell, so that the terminal can be rapidly controlled to switch between cells of different systems, and the resource of the first cell is prevented from being occupied for a long time.
After step 13, the first cell may further receive a measurement report of a neighboring cell of the second standard, where the measurement report is reported by the first terminal according to the connection reconfiguration message; and controlling the first terminal to be switched to the adjacent cell of the second standard according to the measurement report. For example, according to the measurement report, a neighboring cell meeting a preset switching condition is selected, and the first terminal is controlled to switch to the selected neighboring cell. For a specific handover process, reference may be made to implementation in the prior art, which is not described herein again.
In the embodiment of the present invention, if a certain terminal finishes executing the service of the preset type in the first cell, it needs to determine whether the terminal is a terminal that is switched from another cell to the first cell to execute the service of the preset type (step 12 above), if yes, the step 13 is performed to process, and if not, the process may be performed according to the flow of the prior art, for example, the bearer of the service is released, then the first terminal is waited to enter an idle state, and then the cell where the first terminal resides is changed in a cell reselection manner.
In addition, in order to facilitate the determination processing performed in step 12, in the embodiment of the present invention, when any terminal is switched to the first cell to perform the service of the preset type, a switching relation table may be locally recorded, where the switching relation table records the terminal identifier of any terminal, the source cell type before any terminal is switched, and information of the service type performed by any terminal. In this way, in step 12, it may be determined whether the first terminal is a terminal that performs a preset type of service by switching from another cell to the local cell according to the locally recorded handover relation table. Furthermore, after the first terminal is switched back from the first cell to the cell of the original system, the first cell may delete the locally recorded switching relationship table of the first terminal.
The cell handover method according to the embodiment of the present invention is described below with reference to fig. 2 through a complete flow example.
In fig. 2, the original system cell and the target system cell may be any cell in a TDD-LTE or FDD-LTE system. For example, if the original system cell is a TDD-LTE cell, the target system cell is an FDD-LTE cell; and if the original system cell is an FDD-LTE cell, the target system cell is a TDD-LTE cell. IMS refers to an IP Multimedia Subsystem (IP Multimedia Subsystem) in the core network, and MME means a mobility management entity. As shown in fig. 2, the terminal initially resides in the cell of the original system, and initiates a specific service in the cell of the original system; the specific service is preferably executed in the target system cell, so that the terminal is switched to the target system cell. When the service is executed in the target system cell, the terminal is switched back to the original system cell through the connection reconfiguration message. Specifically, as shown in fig. 2:
201. the terminal initiates a specific service in the cell of the original system, and the specific service initiating mode can be realized by referring to the prior art.
202. The MME requires to establish a bearer having a QCI ═ X for the specific service, that is, the QCI ═ X of the bearer corresponding to the specific service.
203. The original system cell determines that the specific service is more suitable for being executed in the cell of the target system according to a preset strategy, so that a service-based connection reconfiguration message is sent to the terminal, and a measurement object carried in the message is the cell of the target system in the adjacent cell of the original system cell, which is referred to as the target system adjacent cell for short.
204. And the terminal reports the measurement result aiming at the target system adjacent cell.
205. And the original system cell executes the switching of the terminal, and the switched target cell is a target cell selected from target system adjacent cells according to the measurement result, which is referred to as a target system cell for short.
206. Through the cell switching process, the terminal is instructed to switch to the target system cell, and details of the signaling message in the specific switching process can be realized by referring to the prior art, which is not described herein again.
207. The MME requires the target system cell to establish a QCI ═ X bearer for the terminal, at this time, a handover relation table of the terminal needs to be recorded, and specifically, a terminal identifier of the terminal, a system of the original system cell before the terminal is handed over, and a service type executed by the terminal in the cell may be recorded, where the service type may be represented by a service bearer, such as a QCI ═ X bearer.
208. And the terminal is switched to the target system cell and carries out the service of QCI (quaternary Community index) X in the target system cell.
209. When the service execution is finished, the core network, for example, MME, sends a release request message to the target system cell, and requests to release the bearer whose QCI is X.
210. And the target system cell releases the bearer with the QCI (quality of service) of X and sends a bearer release message for releasing the QCI (quality of service) of X to the terminal.
2111. The target system cell judges whether a switching relation table of the terminal is recorded or not based on service bearer release with QCI ═ X, if the switching relation table of the terminal records the bearer with QCI ═ X, the terminal is switched back to the cell with the original system after the service execution is finished, at the moment, according to the system of the cell with the original system recorded in the switching relation table, the cell conforming to the system of the cell with the original system is selected from the adjacent cells of the target system cell to be used as a measurement object, a connection reconfiguration message carrying the measurement object is issued, such as an RRC connection reconfiguration message, and the terminal is requested to measure the measurement object.
212. And the terminal measures each cell in the measurement object according to the connection reconfiguration message and reports the measurement result.
213. And the target standard cell receives the measurement result, selects a cell which accords with a preset switching strategy from the measurement result of each cell, takes the cell as a switched target cell, and issues a switching command carrying the target cell to the terminal. The standard of the target cell is the same as that of the original standard cell. Here, it is assumed that the target cell of handover is the original system cell.
214. And the terminal switches according to the received switching command and returns to the original standard cell through a switching process. The details of the handover are not described herein.
Fig. 3 shows a specific application scenario of the cell switching method according to the embodiment of the present invention, in the application scenario, a base station is a TDD-LTE and FDD-LTE co-located station, that is, the base station supports both a TDD-LTE cell and an FDD-LTE cell. Due to the continuous coverage of the TDD-LTE network, in the initial stage of the FDD-LTE network construction, the network priority of the TDD-LTE network is generally configured to be higher than or equal to that of the FDD-LTE network, and then a large number of terminals reside on the TDD-LTE network. Due to the asymmetry of the downlink resources of the TDD-LTE system itself, the uplink pressure is increasingly prominent, and especially when the uplink and downlink symmetric services such as VoLTE are carried, a bottleneck occurs first in the uplink rather than in the downlink.
FDD-LTE has the advantage of symmetrical uplink and downlink bandwidths, and is very suitable for bearing symmetrical services (such as VoLTE services). If the terminal initiates the VoLTE service in the TDD-LTE network, the VoLTE service can be switched to the FDD-LTE network for processing when the call is established. Particularly, in a high-speed rail scene, the coverage performance of an FDD-LTE network is better than that of a TDD-LTE network, and it is generally desirable that all voice services be carried by the FDD-LTE network, and at this time, a VoLTE service initiated in the TDD-LTE network needs to be switched to the FDD-LTE network.
However, in the initial stage of LTE FDD construction, the frequency resource bandwidth that GSM can fallback is small, and the FDD-LTE bandwidth is small and is not suitable for carrying too many data services, so a VoLTE user who wants to switch to FDD-LTE returns to the TDD-LTE network after the VoLTE service is finished, and performs data services in the TDD-LTE network.
Therefore, a VoLTE user who needs to be switched to FDD-LTE is switched back to the TDD-LTE network after the voice service is finished, so as to ensure the experience of voice and data services.
For the application scenario of fig. 3, the switching may be performed according to the following flow:
301, the terminal resides in a TDD-LTE cell and initiates a VoLTE service.
And 302, the base station judges the capability of the terminal, and if the terminal supports an FDD-LTE system, the base station sends a connection reconfiguration message based on service switching, and the target frequency point is an FDD frequency point.
303, the terminal measures the target frequency point and reports the measurement result to the base station.
And 304, if the measurement result meets the switching requirement, switching the terminal to the target cell, and initiating and executing the VoLTE service in the FDD-LTE cell. The FDD-LTE cell records that the terminal is switched to the cell due to the initiation of the VoLTE service, and records the source cell mode before switching, namely the TDD-LTE mode.
305, after the VoLTE service is executed, the base station judges whether the terminal is switched to the cell due to the VoLTE service, if so, the base station initiates the switching based on QCI1E-RAB release to switch the terminal back to the TDD-LTE cell, and specifically, the base station issues a connection reconfiguration message with a target frequency point being a TDD-LTE frequency point. And the terminal measures the TDD-LTE frequency point after receiving the message and reports the measurement result. And when the measurement result meets the switching requirement, the base station switches the terminal to the TDD-LTE cell.
The cell switching method according to the embodiment of the present invention is introduced above, and a base station implementing the method is further provided below. Referring to fig. 4, a base station according to an embodiment of the present invention includes:
a detecting unit 41, configured to detect whether a first service performed by a first terminal in a first cell of a first standard of a base station is executed and ended;
a determining unit 42, configured to determine, when a first service performed by a first terminal in a first cell is executed and ended, whether the first terminal is a terminal that performs a service of a preset type by switching from another cell to the first cell;
a reconfiguration unit 43, configured to send, to the terminal, a connection reconfiguration message carrying a neighboring cell whose measurement object is a second standard when the first terminal is a terminal that performs the preset type of service by switching from another cell to the first cell, where the second standard is a standard of the other cell.
Further, the base station may further include:
and the resource release unit is used for sending the bearer release message of the first service to the first terminal.
A measurement report receiving unit, configured to receive a measurement report of a neighboring cell of the second standard, where the measurement report is reported by the first terminal according to the connection reconfiguration message;
and the switching response unit is used for controlling the first terminal to be switched to the adjacent cell of the second system according to the measurement report.
The base station may further include:
and the recording unit is used for locally recording a switching relation table when any terminal is switched to the first cell to perform the preset type of service, wherein the switching relation table records the identifier of any terminal, the source cell type before any terminal is switched and the information of the service type executed by any terminal.
Here, the determining unit is specifically configured to determine, according to a locally recorded handover relation table, whether the first terminal is a terminal that performs a preset type of service by being handed over from another cell to the first cell.
< example two >
The embodiment of the invention changes the cell where the terminal is located by a redirection mode, and realizes that the terminal in a connection state rapidly leaves the cell after a certain cell performs a specific service. Referring to fig. 5, a method for cell redirection provided in an embodiment of the present invention is applied to a first cell of a first standard, and includes:
Here, in this embodiment, a redirection attribute is configured in advance for some preset service types in the first cell, so as to indicate that the terminal needs to be redirected to another cell after the terminal executes the service of the type. In the redirection attribute, a redirected target cell system, such as parameters of a frequency point of a target cell, may be configured in advance. In this embodiment, the type of the service may be represented by a QCI of a bearer of the service, and therefore, whether the service type of the first service belongs to a preset type in which a redirection attribute is configured in advance may be determined according to whether the QCI of the bearer of the first service belongs to a QCI corresponding to a service type in which the redirection attribute is configured.
And 53, when the service type of the first service belongs to a preset type with a preset redirection attribute, sending a connection release message carrying the redirected target cell type to the terminal.
Here, the first cell sends a Connection Release message carrying a redirected target cell type, for example, an RRC Connection Release message, to the terminal, where a redirected target cell type field in the message may indicate a frequency point of a target cell to which the terminal is to attempt to camp after leaving a connected state. And after receiving the connection release message, the terminal releases the original connection, and then connects with the target cell according to the redirected frequency point, so as to leave the first cell and connect to a new target cell.
Through the steps, the terminal is redirected to the new target cell after the first cell completes the specific service, so that the connection control of the terminal can be realized, the terminal does not continuously occupy the resource of the first cell any more, the network capacity pressure caused by the fact that the terminal occupies the resource of the first cell for a long time is avoided, the resource utilization among the cells is more balanced, and the network resource efficiency can be improved.
Based on the above method, an embodiment of the present invention provides a base station, as shown in fig. 6, where the base station includes:
a detecting unit 61, configured to detect whether a first service performed by a terminal in a first cell of a first standard of a base station is executed and ended;
a determining unit 62, configured to determine, when a first service performed by the terminal in a first cell is executed and ended, whether a service type of the first service belongs to a preset type in which a redirection attribute is configured in advance, where the redirection attribute includes redirection target cell format information;
a redirecting unit 63, configured to send a connection release message carrying a redirected target cell type to the terminal when the service type of the first service belongs to a preset type in which a redirection attribute is preconfigured.
Here, the determining unit is specifically configured to determine, according to the quality of service class flag QCI of the bearer of the first service, whether the service type of the first service belongs to a preset type in which a redirection attribute is configured in advance.
To sum up, the cell switching method, the cell redirection method, and the base station provided in the embodiments of the present invention control the terminal to disconnect from the cell executing the service and establish connection with other cells based on bearer release of the specific service, so that the terminal can quickly enter another cell after the service is executed in one cell, thereby avoiding network capacity pressure caused by the terminal occupying resources of a certain cell network for a long time, making resource utilization between cells more balanced, and improving network resource efficiency.
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 (14)
1. A cell switching method is applied to a first cell of a first standard, and is characterized by comprising the following steps:
the first cell detects that the first service performed by the first terminal in the cell is executed and ended;
the first cell judges whether the first terminal is a terminal which is switched from other cells to the cell to carry out the preset type of service;
when the first terminal is a terminal which is switched from other cells to the cell to perform the preset type of service, the first cell sends a connection reconfiguration message carrying a neighboring cell with a second standard as a measurement object to the terminal, wherein the second standard is the standard of the other cells; and the first cell sends a connection release message carrying the redirected target cell system to the terminal, and indicates the frequency point of the target cell to which the terminal attempts to reside after leaving the connection state in a redirected cell carrier info field of the connection release message.
2. The method of claim 1, wherein prior to sending the connection reconfiguration message, the method comprises:
and the first cell sends the bearer release message of the first service to the first terminal.
3. The method of claim 1 or 2, wherein after sending the connection reconfiguration message, the method comprises:
the first cell receives a measurement report of a neighboring cell of a second standard, which is measured and reported by the first terminal according to the connection reconfiguration message;
and the first cell controls the first terminal to be switched to the adjacent cell of the second standard according to the measurement report.
4. The method of claim 1, further comprising:
when any terminal is switched to the local cell to perform the preset type of service, the first cell locally records a switching relation table, and the switching relation table records the identifier of any terminal, the source cell type before any terminal is switched, and the information of the service type executed by any terminal.
5. The method of claim 4, wherein the step of the first cell determining whether the first terminal is a terminal performing a predetermined type of service by being handed over from another cell to the first cell comprises:
and the first cell judges whether the first terminal is a terminal which is switched from other cells to the cell to perform preset type services or not according to a switching relation table recorded locally.
6. A base station, comprising:
a detecting unit, configured to detect whether a first service performed by a first terminal in a first cell of a first standard of a base station is executed and ended;
a determining unit, configured to determine, when a first service performed by a first terminal in a first cell is executed and ended, whether the first terminal is a terminal that performs a service of a preset type by switching from another cell to the first cell;
a reconfiguration unit, configured to send a connection reconfiguration message carrying a neighboring cell with a second standard as a measurement object to a terminal when the first terminal is a terminal that performs the preset type of service by switching from another cell to the first cell, where the second standard is a standard of the other cell; and the first cell sends a connection release message carrying the redirected target cell system to the terminal, and indicates the frequency point of the target cell to which the terminal attempts to reside after leaving the connection state in a redirected cell carrier info field of the connection release message.
7. The base station of claim 6, further comprising:
and the resource release unit is used for sending the bearer release message of the first service to the first terminal.
8. The base station of claim 6 or 7, further comprising:
a measurement report receiving unit, configured to receive a measurement report of a neighboring cell of the second standard, where the measurement report is reported by the first terminal according to the connection reconfiguration message;
and the switching response unit is used for controlling the first terminal to be switched to the adjacent cell of the second system according to the measurement report.
9. The base station of claim 6, further comprising:
and the recording unit is used for locally recording a switching relation table when any terminal is switched to the first cell to perform the preset type of service, wherein the switching relation table records the identifier of any terminal, the source cell type before any terminal is switched and the information of the service type executed by any terminal.
10. The base station of claim 9, wherein the determining unit is specifically configured to determine whether the first terminal is a terminal that performs a service of a preset type by switching from another cell to the first cell according to a locally recorded handover relation table.
11. A method for cell redirection is applied to a first cell of a first standard, and is characterized by comprising the following steps:
the first cell detects that the first service performed by the terminal in the cell is executed and ended;
judging whether the service type of the first service belongs to a preset type with a redirection attribute configured in advance, wherein the redirection attribute comprises redirected target cell system information;
and when the service type of the first service belongs to a preset type with a preset redirection attribute, sending a connection release message carrying a redirected target cell system to the terminal, and indicating the frequency point of the target cell to which the terminal attempts to reside after leaving the connection state in a redirected cell information field of the connection release message.
12. The method of claim 11, wherein the step of determining whether the service type of the first service belongs to a preset type with a pre-configured redirection attribute comprises:
and the first cell judges whether the service type of the first service belongs to a preset type with a preset redirection attribute according to the service quality grade mark QCI of the load of the first service.
13. A base station, comprising:
a detecting unit, configured to detect whether a first service performed by a terminal in a first cell of a first standard of a base station is executed and ended;
a determining unit, configured to determine, when a first service performed by the terminal in a first cell is executed and ended, whether a service type of the first service belongs to a preset type in which a redirection attribute is configured in advance, where the redirection attribute includes redirection target cell format information;
and the redirecting unit is used for sending a connection release message carrying a redirected target cell system to the terminal when the service type of the first service belongs to a preset type with a redirecting attribute configured in advance, and indicating the frequency point of the target cell to which the terminal attempts to reside after leaving the connection state in a redirected cell information field of the connection release message.
14. The base station according to claim 13, wherein the determining unit is specifically configured to determine, according to the quality of service class flag QCI of the bearer of the first service, whether the service type of the first service belongs to a preset type with a pre-configured redirection attribute.
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| CN112996066B (en) * | 2021-02-10 | 2023-04-07 | 展讯通信（上海）有限公司 | Network residing method and related equipment |
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