CN108632914B - Method and base station for preventing ping-pong redirection of terminal - Google Patents
Method and base station for preventing ping-pong redirection of terminal Download PDFInfo
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- CN108632914B CN108632914B CN201710164676.8A CN201710164676A CN108632914B CN 108632914 B CN108632914 B CN 108632914B CN 201710164676 A CN201710164676 A CN 201710164676A CN 108632914 B CN108632914 B CN 108632914B
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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
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The embodiment of the invention provides a method for preventing a terminal from ping-pong redirection and a base station. In the embodiment of the application, after receiving a redirection request message sent by a terminal, a base station judges whether a timer for the terminal is started and is not overtime, wherein the timer is used for timing a redirection refusing time period; if the timer is started and is not overtime, judging whether the terminal is allowed to be redirected within the timer timing time of the terminal according to the reason of terminal redirection; if not, the redirection request message is rejected, thereby preventing the terminal from being redirected repeatedly within a set time.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method and a base station for preventing ping-pong redirection of a terminal.
Background
Common redirection is classified into redirection based on Radio Resource Control (RRC) rejection, redirection based on RRC release, and redirection based on measurement. The redirection based on RRC release refers to a process of enabling a terminal to disconnect from a local cell and access to a target cell by carrying frequency points and other access information of the target cell in Radio Resource Control (RRC for short) signaling release, so as to enable the terminal to continue to receive services by being redirected to access the target cell.
When a terminal redirects between a Time Division-Synchronous Code Division multiple Access (TD-SCDMA) system and a Long Term Evolution (LTE) system, the terminal fails to redirect on a target network due to different reasons such as threshold setting between systems, coverage under the target network system, congestion of the target network, and the like, and then returns to the original system for redirection, which causes frequent redirection between the current network and the target network in a short Time, affects user perception, increases signaling overhead, and increases equipment burden.
Therefore, it is an urgent problem to be solved to research a method for preventing ping-pong redirection of a terminal.
Disclosure of Invention
The invention provides a method and a base station for preventing ping-pong redirection of a terminal, which are used for preventing repeated redirection of the terminal within a set time length.
The method for preventing the terminal ping-pong redirection provided by the embodiment of the application comprises the following steps:
after receiving a redirection request message sent by a terminal, a base station judges whether a timer aiming at the terminal is started or not and whether the timer is not overtime or not, wherein the timer is used for timing a time period for refusing redirection;
if the timer is started and is not overtime, judging whether the terminal is allowed to be redirected within the timer timing time of the terminal according to the reason of terminal redirection;
if not, rejecting the redirection request message; otherwise, responding to the redirection request message.
Optionally, the method further comprises:
if the base station judges that the timer aiming at the terminal is not started, the base station judges whether the timer is started for the terminal according to the indication information reported by the terminal; the indication information is used for indicating whether the terminal is prevented from being repeatedly redirected within a set time length;
if yes, starting a timer aiming at the terminal, and responding to the redirection request message; otherwise, responding to the redirection request message.
Optionally, the determining, according to the reason for terminal redirection, whether to allow the terminal to perform redirection within a timer of the terminal includes:
and if the redirection reason is that the service requested by the terminal needs to be performed in a target cell or a target base station, or the redirection reason is a reason specified in a Radio Resource Control (RRC) establishment reason to allow the terminal to perform redirection within the timer timing time of the terminal, determining that the terminal is allowed to perform redirection within the timer timing time of the terminal.
Optionally, the determining, according to the reason for terminal redirection, whether to allow the terminal to perform redirection within a timer of the terminal includes:
if the reason for redirection is blind redirection, or redirection failure, or the reason for redirection is specified as a reason that the terminal is not allowed to be redirected within the timer timing time of the terminal in the reason of RRC establishment, it is determined that the terminal is not allowed to be redirected within the timer timing time of the terminal.
Optionally, the redirection request message carries a redirection reason.
Optionally, the method is applied to redirection between a time division synchronous code division multiple access (TD-SCDMA) system and a Long Term Evolution (LTE) system.
An embodiment of the present application provides a base station, including:
the receiving module is used for receiving a redirection request message sent by the terminal;
the judging module is used for judging whether a timer aiming at the terminal is started or not and whether the timer is not overtime or not, and the timer is used for timing a redirection refusing time period; if the timer is started and is not overtime, judging whether the terminal is allowed to be redirected within the timer timing time of the terminal according to the reason of terminal redirection;
the response module rejects the redirection request message if the judging module judges that the terminal is not allowed to be redirected within the timing time of the timer of the terminal; otherwise, responding to the redirection request message.
Optionally, the determining module is further configured to:
if the timer aiming at the terminal is judged not to be started, judging whether the timer is started for the terminal or not according to the indication information reported by the terminal; the indication information is used for indicating whether the terminal is prevented from being repeatedly redirected within a set time length;
if yes, starting a timer aiming at the terminal, and responding to the redirection request message; otherwise, responding to the redirection request message.
Optionally, the determining module is specifically configured to:
and if the redirection reason is that the service requested by the terminal needs to be performed in a target cell or a target base station, or the redirection reason is a reason specified in a Radio Resource Control (RRC) establishment reason to allow the terminal to perform redirection within the timer timing time of the terminal, determining that the terminal is allowed to perform redirection within the timer timing time of the terminal.
Optionally, the determining module is further specifically configured to:
if the reason for redirection is blind redirection, or redirection failure, or the reason for redirection is specified as a reason that the terminal is not allowed to be redirected within the timer timing time of the terminal in the reason of RRC establishment, then it is determined that the terminal is allowed to be redirected within the timer timing time of the terminal.
Optionally, the redirection request message carries a redirection reason.
Optionally, the base station is applied to redirection between a time division synchronous code division multiple access TD-SCDMA system and a long term evolution system LTE.
In the technical scheme provided by the embodiment of the invention, after receiving a redirection request message sent by a terminal, a base station judges whether a timer aiming at the terminal is started and is not overtime, wherein the timer is used for timing a redirection refusing time period; if the timer is started and is not overtime, judging whether the terminal is allowed to be redirected within the timer timing time of the terminal according to the reason of terminal redirection; if not, refusing the redirection request message; otherwise, responding to the redirection request message. It can be seen that, in the embodiment of the present application, after receiving a redirection request message sent by a terminal, a base station determines whether a timer for timing a time period for rejecting redirection of the terminal is started and whether the timer times out, if the timer is started and does not time out, determines whether to allow the terminal to perform redirection within the timer time period according to a reason for redirection of the terminal, and if not, rejects the redirection request message of the terminal, thereby preventing the terminal from being repeatedly redirected within a set time period.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flowchart of a method for preventing ping-pong redirection of a terminal according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of a specific method for preventing ping-pong redirection of a terminal according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a base station according to an embodiment of the present application.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The redirection of the terminal in the LTE is to redirect the terminal to a cell corresponding to the frequency point information according to the frequency point information of the cell carrying the terminal redirection in the RRC connection release message. The redirection is classified into RRC rejection based redirection, RRC release based redirection, and measurement based redirection. In the prior art, for a terminal redirected from a TD-SCDMA system to an LTE system, only redirection of redirection indication information in an RRC request message sent by a base station to the terminal is considered, and if the redirection indication information indicates that redirection of the terminal is not allowed, the terminal always rejects redirection. In addition, currently, for redirection based on RRC release and redirection based on measurement, there is no method for preventing the terminal from frequent redirection between different systems.
In order to solve the above mentioned problem, an embodiment of the present application provides a method for preventing a ping-pong redirection of a terminal. In the following embodiments of the present application, the source base station to which the terminal is redirected is referred to as a first base station, and the base station to which the terminal is redirected is referred to as a target base station.
In some embodiments, the terminal may be any suitable computing or mobile device, such as may include: a smart phone, a tablet computer, a notebook computer, a Personal Digital Assistant (PDA), or the like.
In some embodiments, the base station may be an evolved Node B (eNB or e-NodeB) in an LTE system or an evolved system thereof, a macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an Access Point (AP) or a Transmission Point (TP).
Referring to fig. 1, a flowchart of a method for preventing a ping-pong redirection of a terminal provided in an embodiment of the present application is shown. The flow diagram of the method comprises the following steps:
step 101: after receiving a redirection request message sent by a terminal, a base station judges whether a timer aiming at the terminal is started and whether the timer times out, wherein the timer is used for timing a time period of refusing redirection. Step 102: and if the timer is started and is not overtime, the base station judges whether the terminal is allowed to be redirected within the timing time of the timer corresponding to the terminal or not according to the reason of redirection of the terminal. Step 103: if the base station judges that the terminal is not allowed to be redirected within the timing time of the timer corresponding to the terminal according to the reason of terminal redirection, rejecting the redirection request message of the terminal; otherwise, responding to the redirection request message of the terminal.
In the embodiment of the present application, the redirection of the terminal between the TD-SCDMA system and the LTE system is taken as an example to describe the embodiment of the present application.
Referring to fig. 2, a schematic flowchart of a specific method for preventing ping-pong redirection of a terminal provided in an embodiment of the present application is shown, where the process specifically includes the following steps:
step 201: and the first base station receives a redirection request message sent by the terminal.
In specific implementation, the terminal sends a redirection request message to the first base station when the communication quality is poor, or the terminal reports a measurement report for indicating the communication quality of the cell of the terminal in the current network to the first base station according to a set period, the first base station determines whether the terminal needs to be redirected based on the measurement report, and the first base station may also determine whether the terminal needs to be redirected according to a service requested by the terminal, for example, a network under the first base station where the terminal is currently located is a 4G network, and when the terminal needs to perform a Circuit Switching (CS) service, the terminal generally performs the redirection under a 3G network, so that the terminal needs to be redirected to ensure that a voice service is performed under the 3G network of the second base station. After determining the terminal to be redirected according to the redirection request message reported by the terminal or the reported measurement report, the first base station performs step 202. The method for determining whether the terminal needs to be redirected by the first base station is merely an example, and of course, other methods may be adopted, which is not specifically limited in the embodiment of the present application.
In this step, the redirection request message may carry the reason information for terminal redirection.
Step 202: the first base station determines whether a timer for the terminal is started, if the timer is started and the timing of the timer is not overtime, step 203 is executed, otherwise, step 206 is executed.
In this step, each terminal corresponds to a timer, and the timer is used for timing a time period for rejecting redirection.
Step 203: and the first base station judges whether the terminal is allowed to be redirected within the timing time of the timer or not according to the redirection reason of the terminal, if so, the step 204 is carried out, and if not, the step 205 is carried out.
In this step, the redirection performed by all terminals within the timer is not limited, because some terminals have to be redirected because of the traffic requirement. For example, the network of the first base station where the terminal is currently located is a 4G network, and when the terminal needs to perform a Circuit Switching (CS) service, the terminal generally performs the CS service under a 3G network, so the terminal needs to be redirected to the 3G network of the second base station. A terminal for such redirection cannot reject the redirection, otherwise the perception of the user is affected. However, for a terminal with blind redirection or a terminal with redirection failure due to network coverage, congestion and other problems of the target base station for redirection, the terminal with such redirection reason is not allowed to repeat redirection within the timer timing time corresponding to the terminal. The embodiment of the application is mainly directed to the terminal which is not allowed to be repeatedly redirected within the timing time of the timer.
In specific implementation, the first base station determines whether to allow the terminal to perform redirection within the time counted by the timer according to the reason for the redirection of the terminal, which includes two cases:
case 1: if the reason for the terminal redirection is that the service requested by the terminal needs to be performed in the target cell or the target base station (for example, voice fallback), or the reason for the redirection is specified as a reason for allowing the terminal to perform redirection within the timer timing time of the terminal in the RRC establishment reason, the terminal is allowed to perform redirection within the timer timing time of the terminal. The RRC establishment causes are 20 types as shown in table 1 below, any one of the 20 RRC establishment cause tables has a corresponding rule, and it is determined according to the rule whether the redirection for each RRC establishment cause allows repeated redirection within the timer, and the rule is determined according to actual conditions or is preset.
Case 2: and if the redirection reason is blind redirection, or redirection failure, or the redirection reason is the reason that the terminal is not allowed to be redirected within the timer timing time of the terminal, which is specified in the RRC establishment reason, then judging that the terminal is not allowed to be redirected within the timer timing time of the terminal.
Step 204: and the first base station responds to the redirection request message of the terminal and redirects the terminal.
In this step, when the first base station redirects the terminal in response to the redirection request message of the terminal, an RRC connection release message is sent to the terminal, where the RRC connection release message carries the frequency point information of the redirection target cell.
Step 205: and the first base station refuses the redirection request message of the terminal and refuses the redirection of the terminal before the timer corresponding to the terminal times out.
Step 206: the first base station judges whether to start a timer for the terminal according to the indication information reported by the terminal, the indication information is used for indicating whether to prevent the terminal from repeatedly redirecting within a set time, if so, the step 207 is carried out, otherwise, the step 208 is carried out.
In this step, the first base station determines, according to the indication information reported by the terminal, whether the method for starting the timer by the terminal is consistent with the two cases described in step 203, and if it is determined that the terminal is allowed to perform redirection within the timer timing time of the terminal according to case 1, the timer is not started; and if the terminal is determined not to be allowed to be redirected within the timer timing time of the terminal according to the condition 2, starting the timer.
Step 207: and starting a timer aiming at the terminal, and responding to the redirection request message of the terminal.
In this step, the first base station determines that a timer is started for the terminal, which indicates that the reason for redirection is blind redirection, or redirection failure, or that the reason for redirection is a reason that the terminal is not allowed to be redirected within the timer timing time of the terminal due to RRC establishment, and then the first base station starts the timer, rejects redirection of the terminal within the timer timing time, and redirects the terminal after the timer timing is overtime.
Step 208: the first base station responds to the redirection request message of the terminal.
In this step, if it is determined in step 206 that the timer is not started, it is indicated that the reason for the redirection by the terminal is that the service requested by the terminal needs to be performed in the target cell or the target base station (for example, voice fallback), or the reason for the redirection is that the RRC establishment reason specifies that the terminal is allowed to be redirected within the timer timing time of the terminal, and the first base station responds to the redirection request by the terminal.
Table 1: RRC connection establishment cause table
In specific implementation, in some embodiments, for a terminal that is not allowed to be redirected within a set time length, an entry of a "redirection ping-pong timer" may be added under a cell Handover (HC) algorithm table, the terminal determines whether to allow a terminal that is repeatedly redirected within the set time length according to the determination in the above steps 201 to 208, and sets the configuration of the redirection ping-pong timer prevention entry according to the determination result, and the terminal performs redirection within the timer timing time according to the configuration of the entry. For example, for a terminal that is not allowed to be repeatedly redirected within a set time period, a "redirection ping-pong prevention timer" table entry in the HC algorithm table may be configured as a non-zero number; for a terminal that allows repeated redirection within a set time period, the table entry of "redirection ping-pong prevention timer" in the HC algorithm table may be configured to be zero. If the number of the item of the 'redirection ping-pong prevention timer' in the HC algorithm table is displayed as 1, 2, 3, 4 and other non-zero numbers when the terminal is redirected, the terminal cannot be repeatedly redirected within the timing time of the corresponding timer; if the number of the table item of the redirection ping-pong prevention timer in the HC algorithm table is displayed as 0 when the terminal is redirected, the terminal can be directly redirected. In specific implementation, there are many methods for disallowing the terminal to be repeatedly redirected within a set time length, for example, an entry of a "redirection ping-pong timer switch" may be added to the HC algorithm table, and whether the terminal is redirected within the timer counting time is indicated according to the switch, where the addition of the "redirection ping-pong timer" to the entry of the HC algorithm table is only an example, and certainly, other methods may also be used, and embodiments of the present application are not limited specifically.
In some embodiments, the terminal may also report related information of the last redirection to the first base station, and the first base station may make a specific determination on the redirection of the terminal according to the reported information. For example, the redirection types generally include blind redirection and measurement-based redirection, and the terminal may report the last redirection type to the first base station; the terminal can also report the time used for successful redirection last time, the identification of the target base station redirected last time and other information, and the first base station judges whether the terminal is allowed to be redirected repeatedly within the set time according to the information.
It can be seen that, in the embodiment of the present application, after receiving a redirection request message sent by a terminal, a base station determines whether a timer for timing a time period for rejecting redirection of the terminal is started and whether the timer times out, if the timer is started and does not time out, determines whether to allow the terminal to perform redirection within the timer time period according to a reason for redirection of the terminal, and if not, rejects the redirection request message of the terminal, thereby preventing the terminal from being repeatedly redirected within a set time period.
The method for preventing the terminal ping-pong redirection provided by the embodiment of the application can also be applied to redirection based on measurement. The communication conditions of the current cell where the terminal is located and the neighboring cells of the cell are measured based on measurement redirection, and the number of times of measurement is generally not limited. If the measurement times are limited, the perception of the user may be affected, for example, when the signal quality of the cell where the terminal is currently located is poor and normal communication of the terminal cannot be guaranteed, if the measurement times are limited, the terminal cannot measure the cell with a good communication condition, which results in terminal redirection failure, the perception of the user is seriously affected, so the measurement times of redirection based on measurement are generally not limited. The method for preventing ping-pong redirection of the terminal provided by the embodiment of the application can be applied to redirection based on measurement, but whether the method is applied to redirection based on measurement or not can be specifically determined according to the requirements of users. For example, if the user is premised on preventing the terminal from being repeatedly redirected among different systems, the method for preventing the terminal from being repeatedly redirected among different systems provided by the embodiment of the application can be applied, and the terminal is not allowed to be redirected within the timing time of the timer, so that the aim of preventing the terminal from being repeatedly redirected among different systems is fulfilled; if the perception of the user is not influenced, the method for preventing the ping-pong redirection of the terminal is not applied, and the processing is carried out according to the existing flow.
It can be seen from the foregoing embodiment that, in the technical solution provided in the embodiment of the present application, the first base station determines whether to allow the terminal to be redirected within a set time length according to a reason for terminal redirection, if not, starts a timer corresponding to the terminal, and before the time of the timer expires, the terminal cannot be redirected, thereby preventing the terminal from being repeatedly redirected under the first base station and the second base station.
Based on the same technical concept, the embodiment of the application also provides a structural schematic diagram of the base station.
Referring to fig. 3, a schematic structural diagram of a base station provided in the embodiment of the present application is shown. The base station may implement the flowchart described in the above embodiment.
The base station provided by the embodiment of the application comprises: receiving module 301, determining module 302, and responding module 303:
a receiving module 301, configured to receive a redirection request message sent by a terminal;
a determining module 302, configured to determine whether a timer for the terminal is started and the timer is not overtime, where the timer is configured to time a redirection rejection time period; if the timer is started and is not overtime, judging whether the terminal is allowed to be redirected within the timer timing time of the terminal according to the reason of terminal redirection;
a response module 303, configured to reject the redirection request message if the determining module determines that the terminal is not allowed to perform redirection within the timer timing time of the terminal; otherwise, responding to the redirection request message.
Optionally, the determining module is further configured to:
if the timer aiming at the terminal is judged not to be started, judging whether the timer is started for the terminal or not according to the indication information reported by the terminal; the indication information is used for indicating whether the terminal is prevented from being repeatedly redirected within a set time length;
if yes, starting a timer aiming at the terminal, and responding to the redirection request message; otherwise, responding to the redirection request message.
Optionally, the determining module is specifically configured to:
and if the redirection reason is that the service requested by the terminal needs to be performed in a target cell or a target base station, or the redirection reason is a reason specified in a Radio Resource Control (RRC) establishment reason to allow the terminal to perform redirection within the timer timing time of the terminal, determining that the terminal is allowed to perform redirection within the timer timing time of the terminal.
Optionally, the determining module is further specifically configured to:
if the reason for redirection is blind redirection, or redirection failure, or the reason for redirection is specified as a reason that the terminal is not allowed to be redirected within the timer timing time of the terminal in the reason of RRC establishment, then it is determined that the terminal is allowed to be redirected within the timer timing time of the terminal.
Optionally, the redirection request message carries a redirection reason.
Optionally, the base station is applied to redirection between a time division synchronous code division multiple access TD-SCDMA system and a long term evolution system LTE.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. 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 diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory 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 memory 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 preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (12)
1. A method for preventing ping-pong redirection of a terminal is characterized by comprising the following steps:
after receiving a redirection request message sent by a terminal, a base station judges whether a timer aiming at the terminal is started or not and whether the timer is not overtime or not, wherein the timer is used for timing a time period for refusing redirection;
if the timer is started and is not overtime, judging whether the terminal is allowed to be redirected within the timer timing time of the terminal according to the reason of terminal redirection;
if not, rejecting the redirection request message; otherwise, responding to the redirection request message.
2. The method of claim 1, further comprising:
if the base station judges that the timer aiming at the terminal is not started, the base station judges whether the timer is started for the terminal according to the indication information reported by the terminal; the indication information is used for indicating whether the terminal is prevented from being repeatedly redirected within a set time length;
if yes, starting a timer aiming at the terminal, and responding to the redirection request message; otherwise, responding to the redirection request message.
3. The method according to claim 1 or 2, wherein the determining whether to allow the terminal to perform redirection within a timer of the terminal according to the reason for the terminal redirection comprises:
and if the redirection reason is that the service requested by the terminal needs to be performed in a target cell or a target base station, or the redirection reason is a reason specified in a Radio Resource Control (RRC) establishment reason to allow the terminal to perform redirection within the timer timing time of the terminal, determining that the terminal is allowed to perform redirection within the timer timing time of the terminal.
4. The method according to claim 1 or 2, wherein the determining whether to allow the terminal to perform redirection within a timer of the terminal according to the reason for the terminal redirection comprises:
if the reason for redirection is blind redirection, or redirection failure, or the reason for redirection is specified as a reason that the terminal is not allowed to be redirected within the timer timing time of the terminal in the reason of RRC establishment, it is determined that the terminal is not allowed to be redirected within the timer timing time of the terminal.
5. The method of claim 1, wherein the redirect request message carries a redirect reason.
6. The method of claim 1, wherein the method is applied to redirection between a time division synchronous code division multiple access (TD-SCDMA) system and a Long Term Evolution (LTE) system.
7. A base station, comprising:
the receiving module is used for receiving a redirection request message sent by the terminal;
the judging module is used for judging whether a timer aiming at the terminal is started or not and whether the timer is not overtime or not, and the timer is used for timing a redirection refusing time period; if the timer is started and is not overtime, judging whether the terminal is allowed to be redirected within the timer timing time of the terminal according to the reason of terminal redirection;
the response module rejects the redirection request message if the judging module judges that the terminal is not allowed to be redirected within the timing time of the timer of the terminal; otherwise, responding to the redirection request message.
8. The base station of claim 7, wherein the determining module is further configured to:
if the timer aiming at the terminal is judged not to be started, judging whether the timer is started for the terminal or not according to the indication information reported by the terminal; the indication information is used for indicating whether the terminal is prevented from being repeatedly redirected within a set time length;
if yes, starting a timer aiming at the terminal, and responding to the redirection request message; otherwise, responding to the redirection request message.
9. The base station of claim 7 or 8, wherein the determining module is specifically configured to:
and if the redirection reason is that the service requested by the terminal needs to be performed in a target cell or a target base station, or the redirection reason is a reason specified in a Radio Resource Control (RRC) establishment reason to allow the terminal to perform redirection within the timer timing time of the terminal, determining that the terminal is allowed to perform redirection within the timer timing time of the terminal.
10. The base station of claim 7 or 8, wherein the determining module is further configured to:
if the reason for redirection is blind redirection, or redirection failure, or the reason for redirection is specified as a reason that the terminal is not allowed to be redirected within the timer timing time of the terminal in the reason of RRC establishment, then it is determined that the terminal is allowed to be redirected within the timer timing time of the terminal.
11. The base station of claim 7, wherein the redirection request message carries a redirection reason.
12. The base station of claim 7, wherein the base station is applied for redirection between a time division synchronous code division multiple access (TD-SCDMA) system and a Long Term Evolution (LTE) system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164676.8A CN108632914B (en) | 2017-03-17 | 2017-03-17 | Method and base station for preventing ping-pong redirection of terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164676.8A CN108632914B (en) | 2017-03-17 | 2017-03-17 | Method and base station for preventing ping-pong redirection of terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108632914A CN108632914A (en) | 2018-10-09 |
| CN108632914B true CN108632914B (en) | 2020-08-28 |
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