WO2013152709A1 - 无线链路的重建方法及装置 - Google Patents
无线链路的重建方法及装置 Download PDFInfo
- Publication number
- WO2013152709A1 WO2013152709A1 PCT/CN2013/073924 CN2013073924W WO2013152709A1 WO 2013152709 A1 WO2013152709 A1 WO 2013152709A1 CN 2013073924 W CN2013073924 W CN 2013073924W WO 2013152709 A1 WO2013152709 A1 WO 2013152709A1
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- WO
- WIPO (PCT)
- Prior art keywords
- base station
- security algorithm
- cause value
- target base
- wireless link
- Prior art date
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Classifications
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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
- H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
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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
- H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/60—Context-dependent security
- H04W12/61—Time-dependent
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
Definitions
- the present invention relates to the field of communications, and in particular to a method and apparatus for reconstructing a wireless link.
- a user equipment User Equipment, UE for short
- the UE After the UE switches to the E-UTRAN Node B (eNB), the UE needs to adopt a new security algorithm configuration, but
- the UE initiates a re-establishment request, and the security algorithm is rolled back to the old security algorithm (ie, the security algorithm used by the source eNB). Therefore, it is mentioned in the prior art that when the UE switches, the source eNB needs to transmit its security algorithm to the destination side eNB for use in the scenario of reestablishing the wireless link.
- the security algorithm of the source eNB is delivered to the target eNB and used in the scenario of potential re-establishment of the wireless link, and the specific scenario of reestablishing the wireless link is not distinguished.
- there are multiple scenarios for reestablishing a wireless link Some scenarios for reestablishing a wireless link are not caused by a UE handover failure. If in this scenario, the UE security algorithm is rolled back to the old security algorithm. , there will be a problem with the fallback process failure. For example, in a scenario of non-contention handover, the UE receives Msg2 (the second message of random access), at this time.
- the UE considers that the handover is successful.
- the radio link control Radio Link Control, referred to as RLC
- the UE also initiates a re-establishment request to the destination eNB.
- the destination eNB does not receive the reconfiguration complete message, and the destination eNB considers that the handover is unsuccessful.
- the security algorithm of the UE is updated to the old security algorithm.
- the security algorithm adopted by the UE is already a new security algorithm, only because the reconfiguration is sent to the destination eNB. If the completion message fails, the UE sends a re-establishment request to the destination eNB, which is not a true UE handover failure. Therefore, the security algorithm rollback process performed by the destination eNB necessarily fails.
- the security algorithm fallback process is erroneously performed during the radio link re-establishment process, thereby causing the failure of the radio link reestablishment, and the success rate of the radio link reestablishment is relatively low.
- the present invention provides a method and an apparatus for reestablishing a wireless link, so as to at least solve the failure of the security algorithm to fall back due to an error in the radio link re-establishment process in the related art, thereby causing failure of radio link reestablishment, and radio link reconstruction.
- the technical success rate is relatively low.
- a method for reestablishing a radio link including: receiving, by a destination base station, a re-establishment request message sent by a UE, where the re-establishment request message carries a cause value, and the cause value includes indicating the UE The information of the handover success or the handover failure; the destination base station determines the security algorithm used by the target base station to re-establish the wireless link with the UE according to the cause value, and establishes the wireless link by using the security algorithm.
- the destination base station determines, according to the cause value, a security algorithm used by the target base station to re-establish a wireless link with the UE, and establishes a wireless link by using a security algorithm.
- the cause value indicates that the UE successfully determines that the handover algorithm is successful.
- the destination base station determines, according to the cause value, a security algorithm used by the target base station to re-establish a wireless link with the UE, and establishes a wireless link by using a security algorithm.
- the cause value indicates that the UE does not perform handover successfully, and the target base station determines that the security algorithm is A security algorithm of the source base station corresponding to the UE, and using the security algorithm of the source base station to establish a wireless link.
- a method for reestablishing a radio link including: determining, by a UE, a handover result of a UE; and transmitting, by the UE, a re-establishment request carrying a cause value indicating a handover result to the target base station, where The cause value is used to indicate that the target base station determines, according to the cause value, a security algorithm used by the target base station to re-establish a wireless link with the UE.
- the UE sends a re-establishment request carrying the cause value indicating the handover result to the target base station, where the cause value is used to indicate that the target base station determines, according to the cause value, the security used by the target base station to re-establish the wireless link with the UE.
- the algorithm includes: when the UE is successfully handed over, the UE sends a re-establishment request carrying the cause value to the target base station, where the cause value includes information indicating that the UE is successfully handed over, and is used to indicate that the target base station determines that the security algorithm is the security algorithm of the target base station.
- the security algorithm of the destination base station is used to establish a radio link.
- the UE When the UE fails to switch, the UE sends a re-establishment request carrying the cause value to the target base station, where the cause value includes information indicating that the UE fails to switch, and indicates the purpose.
- the base station determines that the security algorithm is a security algorithm of the source base station corresponding to the UE, and establishes a wireless link by using the security algorithm of the source base station.
- a device for reestablishing a wireless link is provided, the device is applied to a base station, and the method includes: a receiving module, configured to receive a re-establishment request message sent by the UE, where the re-establishment request message is Carrying a cause value, the cause value includes information indicating that the UE successfully switches or the handover fails; the determining module is configured to determine, according to the cause value, a security algorithm used by the target base station to re-establish a wireless link with the UE, and establish a wireless using a security algorithm. link.
- the determining module includes: a first determining unit, configured to: when the cause value indicates that the UE is successfully handed over, determine that the security algorithm is a security algorithm of the target base station, and establish a wireless link by using a security algorithm of the target base station.
- the determining module includes: a second determining unit, configured to: when the cause value indicates that the UE does not successfully switch, determine that the security algorithm is a security algorithm of the source base station corresponding to the UE, and establish a wireless link by using the security algorithm of the source base station .
- a radio link reestablishing apparatus where the apparatus is applied to a UE, where: the determining module is configured to: determine a handover result of the UE; and the sending module is configured to send the bearer to the destination base station. And a re-establishment request for indicating a cause value of the handover result, where the cause value is used to indicate that the target base station determines, according to the cause value, a security algorithm used by the target base station to re-establish a radio link with the UE.
- the sending module includes: a first sending unit, configured to: when the UE is successfully handed over, send a re-establishment request carrying a cause value to the target base station, where the cause value includes information indicating that the UE is successfully switched, and is used for indicating purposes.
- the base station determines that the security algorithm is a security algorithm of the target base station, and establishes a radio link by using the security algorithm of the destination base station; and the second sending unit is configured to: when the UE fails to handover, send a re-establishment request carrying the cause value to the target base station.
- the cause value includes information indicating that the UE fails to be handed over, and is used to indicate that the target base station determines that the security algorithm is a security algorithm of the source base station corresponding to the UE, and establishes a wireless link by using the security algorithm of the source base station.
- the destination base station receives the re-establishment request message sent by the UE, where the re-establishment request message carries a cause value, where the cause value includes indicating that the UE successfully switches or switches.
- the destination base station may determine whether the UE successfully switches according to the cause value, and further determine a security algorithm used by the target base station to re-establish a wireless link with the UE, and use the security algorithm to establish a wireless link, thereby avoiding related technologies.
- the failure of the security algorithm rollback process cannot determine the failure of the radio link reestablishment caused by the security algorithm used to re-establish the radio link. In this way, the target base station can accurately determine the re-establishment of the radio link.
- the security algorithm achieves the technical effect of improving the success rate of wireless link reconstruction.
- FIG. 1 is a flowchart of a method for reconstructing a wireless link according to an embodiment of the present invention
- FIG. 2 is a flowchart of another method for reconstructing a wireless link according to an embodiment of the present invention
- FIG. 4 is a flowchart of a second example of a method for reconstructing a wireless link according to an embodiment of the present invention
- FIG. 5 is an application according to an embodiment of the present invention
- FIG. 6 is a structural block diagram of a determining module according to an embodiment of the present invention
- FIG. 7 is a structural block diagram of a reconstructing apparatus for a wireless link applied to a UE according to an embodiment of the present invention
- FIG. 8 is a structural block diagram of a transmitting module according to an embodiment of the present invention.
- Steps S102 to S104 are included.
- the target base station receives the re-establishment request message sent by the UE, where the re-establishment request message carries a cause value, where the cause value includes indicating that the UE successfully switches or fails to switch.
- the destination base station can determine whether the UE successfully switches according to the cause value, and thus can Determining a security algorithm used by the target base station to re-establish a radio link with the UE, and using the security algorithm to establish a radio link, which avoids the failure of the security algorithm rollback process in the related art, and cannot determine the re-establishment of the radio link.
- the target base station can accurately determine the security algorithm used to re-establish the wireless link, and achieve the technical effect of improving the success rate of the wireless link reconstruction.
- a preferred method for determining the reestablishment of the radio link between the target base station and the UE according to the cause value is provided.
- a security algorithm used, and a method for establishing a wireless link by using a security algorithm For example, when the cause value carried in the received re-establishment request message indicates that the handover is successful, the target base station determines a security algorithm used to re-establish the wireless link.
- a security algorithm for the target base station, and a wireless link is established by using the security algorithm of the destination base station.
- the cause value carried in the received re-establishment request message indicates that the UE is successfully handed over, that is, when the security algorithm is not required to be rolled back, even if the reconfiguration complete message fails to be sent, the sending is heavy.
- the destination base station can still determine whether the UE is successfully handed over according to the cause value, and does not need to perform the security algorithm rollback, which avoids the scenario where the UE handover fails in a true sense (for example, the UE handover succeeds due to The other causes cause the failure of the establishment of the radio link, and the radio link needs to be re-established.
- the UE and the destination eNB consider that the UE has a successful handover result, which causes the security algorithm to fall back.
- the destination base station can determine the re-request.
- the security algorithm used to establish the radio link is the security algorithm of the target base station, and the security algorithm of the destination base station is used to establish a radio link, which avoids the inconsistency between the UE and the destination eNB as determined by the UE.
- a preferred security algorithm for determining the reestablishment of the radio link between the target base station and the UE according to the cause value is provided, and used.
- the method for establishing a wireless link by the determined security algorithm for example, when the cause value carried in the received re-establishment request message indicates that the UE does not successfully switch, the target base station determines that the security algorithm is a security algorithm of the source base station corresponding to the UE, and A wireless link is established using the security algorithm of the source base station.
- the target base station may determine that the UE handover is not successful according to the cause value.
- the security algorithm is rolled back, and the security algorithm is rolled back in the scenario that the UE does not switch successfully because the UE does not switch successfully.
- the problem of the process failure is determined, and the security algorithm used to re-establish the wireless link is determined as the security algorithm of the source base station, and the security algorithm of the source base station is used to establish a wireless link, thereby improving the accuracy of the target base station determining whether the UE is successfully switched.
- FIG. 2 is a flowchart of another method for reconstructing a wireless link according to an embodiment of the present invention.
- the reconstruction method includes steps S202 to S204.
- Step S202 The UE determines a handover result of the UE.
- Step S204 The UE sends a re-establishment request carrying the cause value indicating the handover result to the target base station, where the cause value is used to indicate that the target base station determines, according to the cause value, the security used by the target base station to re-establish the wireless link with the UE. algorithm.
- the UE first determines whether the UE is successfully handed over, and indicates the determined handover result by using the cause value.
- the UE When transmitting the re-establishment request to the target base station, the UE carries the cause value in the re-establishment request to indicate that the target base station is configured according to the cause.
- the value is determined whether the UE is successfully handed over, and the problem that the UE fails to perform the handover success of the UE that is considered by the UE and the destination eNB is inconsistent, and the security algorithm rollback process fails.
- the security algorithm used by the target base station and the UE to re-establish the wireless link avoids the failure of the security algorithm rollback process in the related art, and cannot determine the wireless link reestablishment failure caused by the security algorithm used to re-establish the wireless link.
- the problem is that the target base station can accurately determine the security algorithm used to re-establish the wireless link, and improve the success rate of the wireless link reconstruction.
- a preferred sending to the destination base station is provided.
- Carrying a re-establishment request for indicating a cause value of the handover result where the cause value is used to indicate a method for the target base station to determine, according to the cause value, a security algorithm used by the target base station to re-establish a radio link with the UE, for example, in the UE
- the UE sends a re-establishment request carrying the cause value to the target base station, where the cause value includes information indicating that the UE is successfully handed over, and is used to indicate that the target base station determines that the security algorithm is the security algorithm of the target base station, and uses the The security algorithm of the destination base station establishes a radio link.
- the UE When the UE fails to switch, the UE sends a re-establishment request carrying the cause value to the target base station, where the cause value includes information indicating that the UE fails to be handed over, and is used to indicate that the target base station determines the security.
- the algorithm is a security algorithm of the source base station corresponding to the UE, and uses the source base station Security algorithms to establish a wireless link.
- the cause value including the information indicating that the UE is successfully handed over is carried in the re-establishment request and sent to the target base station, even in the reconfiguration.
- the destination base station can still determine that the UE handover succeeds according to the cause value, and does not need to perform the security algorithm rollback, and then determines the security algorithm used to re-establish the radio link.
- the security algorithm of the destination base station establishes a radio link by using the security algorithm of the destination base station; when the UE handover is not successful, that is, when the security algorithm needs to be rolled back, the target base station may determine that the UE handover is not successful according to the cause value, and needs to be performed.
- the security algorithm is rolled back, and the security algorithm used to re-establish the wireless link is determined as the security algorithm of the source base station, and the security algorithm of the source base station is used to establish a wireless link, thereby improving the accuracy of the target base station determining whether the UE is successfully switched.
- Sexuality which in turn improves the determination of the destination base station and the UE based on the cause value.
- the accuracy of the security algorithm used in the new wireless link is established; at the same time, the applicable requirements of different scenarios can be met, and the applicable flexibility of the preferred embodiment is enhanced.
- Step S302 The source eNB (base station) sends a handover request message to the target eNB, where the handover request message carries the security algorithm of the source eNB.
- Step S304 After receiving the handover request message, the target eNB saves the security algorithm of the source eNB, and sends a handover request response message to the source eNB.
- Step S306 The source eNB sends a handover command to the UE, and notifies the UE to switch to the target eNB.
- Step S308 The UE initiates a random access procedure to the target eNB.
- Step S310 After receiving the Msg2 (process message 2), the UE considers that the UE is successfully handed over, and sends a reconfiguration complete message to the target eNB.
- Step S312 The reconfiguration complete message cannot receive the acknowledgement of the RLC layer of the target eNB side due to the quality problem of the radio link, and finally causes the radio link establishment failure, and the UE sends a re-establishment request message to the target eNB, and the re-establishment
- the cause value carried in the request message is other failure, that is, the cause value indicates that the UE is successfully switched, because the cause value is Sanhe: 1. Reconfiguration failure 2. Handover failure 3. Other failure, only 2 indicates the UE is switched.
- Step S314 After receiving the re-establishment request message, the target eNB determines that the cause value carried in the re-establishment request message is not handover failure (UE handover failure), that is, the cause value indicates that the UE handover is successful, and then continues to adopt the security algorithm of the target eNB.
- Step S316 Since the UE considers that the handover is successful, the re-establishment request message sent by the UE is processed by a new security algorithm (security algorithm of the target base station), and subsequent messages are also processed by a new security algorithm.
- Step S318 The security algorithm adopted by the target eNB is a new security algorithm.
- the target eNB processes the received re-establishment request message and subsequent messages by using the security algorithm.
- the target base station can still determine the UE according to the cause value. If the handover succeeds, the security algorithm is not required to be rolled back, and the security algorithm used to re-establish the wireless link is determined as the security algorithm of the target base station, and the security algorithm of the target base station is used to establish a wireless link, which avoids the related art.
- Example 2 In this example, a scenario in which the radio link is reestablished when the UE fails to switch is taken as an example. As shown in FIG. 4, the method for reestablishing the radio link includes steps S402 to S416. Step S402: The source eNB sends a handover request message to the destination eNB, where the handover request message carries a security algorithm of the active eNB. Step S404: After receiving the handover request message, the target eNB saves the security algorithm of the source eNB, and sends a handover request response message to the source eNB.
- Step S406 The source eNB sends a handover command to the UE, and notifies the UE to switch to the target eNB.
- Step S408 The UE initiates a random access procedure to the target eNB.
- Step S410 After the timer expires, the UE does not receive the Msg2, and the UE considers that the handover fails, and sends a re-establishment request message to the target eNB, where the cause value carried in the re-establishment request message is handover failure, that is, the indication UE handover failed.
- Step S412 After receiving the re-establishment request message, the target eNB determines that the cause value of the re-establishment request message is handover failure, and then reverts the security algorithm to the security algorithm of the source eNB, that is, determines the security used to re-establish the radio link.
- the algorithm is a security algorithm of the source base station.
- Step S414 Since the UE considers that the handover has failed, the re-establishment request message sent by the UE is processed by the old security algorithm, and subsequent messages are also processed by the old security algorithm.
- Step S416 The security algorithm adopted by the target eNB is the old security algorithm after the rollback.
- the target eNB processes the received re-establishment request message and subsequent messages by using the security algorithm.
- the target base station may determine that the UE handover is not successful according to the cause value, and the security algorithm needs to be rolled back, thereby determining that the wireless link is re-established.
- the security algorithm is a security algorithm of the source base station, and uses the security algorithm of the source base station to establish a wireless link.
- a preferred wireless link reconstruction apparatus is also provided, and FIG. 5 is based on the present invention.
- FIG. 5 is based on the present invention.
- the apparatus is applicable to a base station.
- the reestablishing apparatus of the radio link includes: a receiving module 502, and a determining module 504.
- the receiving module 502 is configured to receive a re-establishment request message sent by the user equipment UE, where the re-establishment request message carries a cause value, where the cause value includes information used to indicate that the UE successfully switches or the handover fails;
- the determining module 504 is connected to the receiving
- the module 502 is configured to determine, according to the cause value, a security algorithm used by the target base station to re-establish a wireless link with the UE, and establish a wireless link by using a security algorithm.
- the receiving module 502 receives the re-establishment request message sent by the UE, where the re-establishment request message carries a cause value, where the cause value includes indicating that the UE successfully switches.
- the determining module 504 may determine, according to the cause value, whether the UE successfully switches, and further determine a security algorithm used by the target base station to re-establish the wireless link with the UE, and use the security algorithm to establish a wireless link, to avoid
- the problem of failure of the wireless link reestablishment caused by the security algorithm used to re-establish the wireless link cannot be determined. In this way, the target base station can accurately determine to re-establish the wireless chain.
- the security algorithm adopted by the road improves the success rate of wireless link reconstruction.
- the determining module 504 includes: The first determining unit 5042 and the second determining unit 5044 will be described in detail below.
- the first determining unit 5042 is configured to: when the cause value indicates that the UE is successfully handed over, determine that the security algorithm is a security algorithm of the target base station, and establish a wireless link by using a security algorithm of the target base station.
- Second determining unit 5044 And when the cause value indicates that the UE does not successfully switch, determining that the security algorithm is a security algorithm of the source base station corresponding to the UE, and establishing a wireless link by using a security algorithm of the source base station.
- the first determining unit 5042 may still use the reason. The value determines that the UE is successfully handed over, and does not need to perform the security algorithm rollback.
- the UE fails to switch in the true sense the UE handover succeeds, and the radio link establishment fails due to other reasons, and needs to be re-established.
- the wireless link the UE and the destination eNB consider that the UE has a successful handover result, and the security algorithm rollback process fails, and the security algorithm used to re-establish the wireless link is determined as the security algorithm of the target base station.
- the security algorithm of the destination base station is used to establish a radio link.
- the second determining unit 5044 may determine that the UE handover is not successful according to the cause value, and the security algorithm needs to be performed.
- FIG. 7 is a structural block diagram of a reconstruction apparatus of a wireless link applied to the UE according to an embodiment of the present invention.
- the apparatus is applicable.
- the reestablishing apparatus of the radio link includes: a determining module 702, and a sending module 704.
- the determining module 702 is configured to determine a handover result of the UE.
- the sending module 704 is connected to the determining module 702, configured to send, to the target base station, a re-establishment request carrying a cause value indicating a handover result, where the cause value is used for indicating purposes.
- the base station determines, according to the cause value, a security algorithm used by the target base station to re-establish a wireless link with the UE.
- the determining module 702 first determines whether the UE is successfully handed over, and indicates the determined handover result by using the cause value.
- the sending module 704 sends the re-establishment request to the target base station, the reason value is carried in the re-establishment request. Determining whether the UE is successfully handed over according to the cause value, and avoiding the fact that the UE and the destination eNB consider that the handover success of the UE is inconsistent, and the security algorithm is rolled back.
- the applicable flexibility of the preferred embodiment is improved. As shown in FIG.
- the foregoing sending module 704 The method includes: a first sending unit 7042, configured to: when the UE is successfully handed over, send a re-establishment request carrying a cause value to the target base station, where the cause value includes information indicating that the UE is successfully handed over, and is used to indicate that the target base station determines the security algorithm.
- the second sending unit 7044 configured to send a re-establishment request carrying a cause value to the target base station when the UE handover fails, where
- the cause value includes information indicating that the UE fails to be handed over, and is used to indicate that the target base station determines that the security algorithm is a security algorithm of the source base station corresponding to the UE, and establishes a wireless link by using the security algorithm of the source base station.
- the first sending unit 7042 carries the cause value including the information indicating that the handover of the UE is successful, and sends the cause value in the re-establishment request to the target base station. Even if the re-establishment request message is sent, the destination base station can still determine that the UE handover is successful according to the cause value, and does not need to perform the security algorithm rollback, thereby determining that the re-establishment of the radio link is adopted.
- the security algorithm is a security algorithm of the target base station, and uses the security algorithm of the destination base station to establish a radio link.
- the second sending unit 7044 When the UE handover is not successful, that is, when the security algorithm needs to be rolled back, the second sending unit 7044 will include the indication UE.
- the value of the unsuccessful information is sent to the destination base station in the re-establishment request.
- the destination base station can determine that the UE handover is not successful according to the cause value, and the security algorithm needs to be rolled back to determine the security used to re-establish the wireless link.
- the algorithm is a security algorithm of the source base station, and the source base station is used
- the algorithm establishes a radio link, thereby improving the accuracy of the target base station determining whether the UE successfully performs handover, and further improving the accuracy of the security algorithm used by the destination base station and the UE to re-establish the radio link according to the cause value;
- the applicable needs of the scenario enhance the applicable flexibility of the preferred embodiment.
- those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
- the computing device may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
- the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
- the invention is not limited to any specific combination of hardware and software.
- the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US14/391,881 US9344931B2 (en) | 2012-04-12 | 2013-04-09 | Method and device for re-establishing radio link |
EP13775401.6A EP2838307B1 (en) | 2012-04-12 | 2013-04-09 | Method and device for re-establishing radio link |
JP2015504853A JP6129952B2 (ja) | 2012-04-12 | 2013-04-09 | 無線リンクの再確立方法及び装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN2012101061681A CN102625471A (zh) | 2012-04-12 | 2012-04-12 | 无线链路的重建方法及装置 |
CN201210106168.1 | 2012-04-12 |
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WO2013152709A1 true WO2013152709A1 (zh) | 2013-10-17 |
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US (1) | US9344931B2 (zh) |
EP (1) | EP2838307B1 (zh) |
JP (1) | JP6129952B2 (zh) |
CN (1) | CN102625471A (zh) |
WO (1) | WO2013152709A1 (zh) |
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CN114500342A (zh) * | 2022-02-11 | 2022-05-13 | 深圳震有科技股份有限公司 | 一种5g upf异常重启通知smf的方法、装置、系统及存储介质 |
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JP6129952B2 (ja) | 2017-05-17 |
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US9344931B2 (en) | 2016-05-17 |
CN102625471A (zh) | 2012-08-01 |
US20150079940A1 (en) | 2015-03-19 |
EP2838307A1 (en) | 2015-02-18 |
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