CN106550413B - A kind of terminal UE connection control method and equipment - Google Patents
A kind of terminal UE connection control method and equipment Download PDFInfo
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
This application discloses a kind of terminal UE connection control methods.RNC is determined in the access request sent according to terminal UE after the terminal protocol version of UE, judge whether terminal protocol version is higher than the highest protocol version itself supported, and is redirected when the judgment result is yes according to the adjacent area instruction UE of the cell of the LTE ability of UE, the triggering reason of access request, blind redirection of switches and UE request access or handle access request according to highest protocol version.It is successfully accessed rate to improve RRC and relocates into success rate, guarantee user's perception and protection operator's investment.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method for controlling UE access. The application also relates to a radio network controller RNC.
Background
Thanks to the characteristics of high network speed and high spectrum utilization rate, the 4G (fourth generation Mobile Communication technology) LTE (Long Term Evolution) is expected to become a main network for each operation to carry data services in the future, but the current LTE network only supports data services, and voice services need to fall back to the back of a GSM (Global System for Mobile communications) network in a CSFB (Circuit Switched Fallback) manner.
When the current 2G/3G/4G network interoperates, the GSM network and the LTE network do not have a direct adjacent cell relation, and both the GSM network and the LTE network are configured with the adjacent cell relation with the 3G network. Therefore, the terminal can generally migrate to the 3G network through an intersystem cell reselection or intersystem switching mode after the 2G network completes the voice service release, and then migrate to the LTE network through an intersystem cell reselection, intersystem redirection and intersystem switching mode in the 3G network. If the 4G network is high in load or unstable in the initial construction period, the terminal in the 4G network may be switched to the 3G network by a relocation or cell reselection mode, and then the terminal is migrated back to the 4G LTE network at a proper time.
In view of the technical development trend prediction and cost consideration, currently, network equipment manufacturers have gradually reduced or stopped the research and development investment on the 3G network, operators are not in the construction of newly-added 3G networks, and have a function of supporting TD/LTE interoperability only from R8 according to the specification of the 25.331 protocol, so the version of the terminal protocol supported by the RNC of each mainstream 3G network equipment manufacturer is usually the highest version of R9, but the 3GPP protocol has supported the version of R12. With the popularization of the LTE terminal, a large number of terminals with high versions (R10, R11, R12, and the like) supporting the LTE network are used in the current network, if the 3G network side does not support the high version protocol, the CSFB falls back to the GSM network, and the terminal cannot migrate back to the 4G LTE network, and accordingly, the terminal reselected/relocated to the 3G network cannot access when the 4G network is busy or weakly covered; it may also cause a failure of intersystem/intra-system relocation of a high-release terminal to an RNC supporting a low-release protocol. Taking the RRC CONNECTION REQUEST message as an example, the message structure of the R10 version is added with the following IEs shown in table 1:
TABLE 1
The protocol version supported by the terminal is carried in the RRC CONNECTION REQUEST message that the terminal accesses the RNC network and the srnsrelocalization INFO information element contained in the transparent Container totargernc _ Container that is relocated from the foreign system or other RNC to the target RNC. If the RNC only supports the R9 version, the ASN decoding may fail after the RNC device on the 3G network side receives the message or the message is discarded because the high protocol version of the terminal is not supported, so that the terminal with the high protocol version cannot access the message.
Based on the above situation, if the 3G network side needs to support the access of these high-version terminals and support the new functions and new features added to the high-version terminals, the network side needs to upgrade the protocol version and even needs to upgrade hardware to support the new functions and new features, and add processing branches to the high-protocol version, and it needs to invest a lot of manpower and material resources to develop, test and deploy, and the added new functions and new features supporting the high-version terminals have no important practical significance for the application of the 3G network, and usually only add a better and better role, and the purpose of the terminal access to the 3G network is only the supplementary use provided when the 3G network or the 4G network is abnormal, so the 3G network is upgraded at any time due to the upgrade of the protocol version, increasing the operation cost of the operator and affecting the network stability, and the cost performance is not high.
Therefore, if the network side RNC needs to have the capability of supporting the high-version terminal access, a processing branch for the high-version terminal access needs to be added. Taking the RNC of the current network mainstream 3G equipment manufacturer as an example, the RNC generally supports the R9 version at the maximum, and includes R4, R5, R6, R7, and R8 version processing branches in a downward compatible manner, and if terminal access of versions above R9 is to be admitted, not only an ASN supporting a high-version protocol needs to be upgraded, but also different protocol version processing branches of an RRC access procedure, an MM (Mobile management) procedure, and an RBC procedure (Radio Bearer control procedure) need to be written according to a protocol version and an execution procedure. Besides upgrading the ASN version, processing branches need to be added according to the protocol version and the execution process of the terminal, the development and testing workload is large, and the newly added functions and field information in the protocol version, RNC or Node B may not support, even if supported, these fields or functions have no important implementation significance for RNC, because the terminal usually only temporarily resides in the 3G network, or performs a common service establishment process, the input-output ratio of upgrading and developing specially for this purpose is too low, and because the increased development workload may introduce defects to cause product instability.
Disclosure of Invention
In view of the problems in the prior art, the present application provides a method for controlling access of a terminal UE, including:
the RNC determines a terminal protocol version of the UE according to an access request sent by the terminal UE;
the RNC judges whether the protocol version of the terminal is higher than the highest protocol version supported by the RNC;
and if so, the RNC instructs the UE to redirect or processes the access request according to the highest protocol version according to the LTE capability of the UE, the triggering reason of the access request, a blind redirection switch and the adjacent cell of the cell to which the UE requests to access.
Preferably, the RNC determines the version of the terminal protocol of the UE according to the access request sent by the terminal UE, specifically:
the RNC receives an RRC access request message sent by the UE;
and the RNC carries out ASN decoding on the RRC access request message, and acquires and stores the trigger reason, the terminal protocol version and the LTE capacity of the UE carried in the RRC access request message.
Preferably, the RNC instructs the UE to redirect or process the access request according to the highest protocol version according to the LTE capability of the UE, the trigger reason of the access request, a blind redirection switch, and a neighboring cell of the cell to which the UE requests access, specifically:
if the UE has the LTE capability, the cell has an LTE adjacent cell, the trigger reason meets the specified condition and the blind redirection switch is in an on state currently, the RNC sends the UE to perform redirection;
and if the UE does not have the LTE capability, or the cell does not have an LTE adjacent cell, or the trigger reason does not meet the specified condition, or the blind redirection switch is not in an on state currently, the RNC processes the access request according to the highest protocol version.
Preferably, the method further comprises the following steps:
when the RNC receives a redirection request message sent by the UE, the RNC decodes a transparent container carried in the redirection request message;
the RNC acquires the terminal protocol version of the UE according to the transparent container and judges whether the terminal protocol version is higher than the highest protocol version supported by the RNC;
if the terminal protocol version is higher than the highest protocol version, accessing the UE according to the highest protocol version, and after the LTE capability of the UE is processed, performing relocation access processing on the UE;
and if the terminal protocol version is not higher than the highest protocol version, carrying out relocation processing on the UE.
Preferably, the relocation procedure is performed on the UE after the LTE capability of the UE is processed, and specifically:
determining whether the UE is LTE capable;
if so, the RNC stores the capability information of the LTE capability and performs relocation processing on the UE after the storage is finished;
and if not, the RNC performs relocation processing on the UE.
Correspondingly, the present application also provides a radio network controller RNC, comprising:
the determining module is used for determining the terminal protocol version of the UE according to the access request sent by the terminal UE;
the judging module is used for judging whether the terminal protocol version is higher than the highest protocol version supported by the judging module;
and the indicating module is used for indicating the UE to redirect or process the access request according to the highest protocol version according to the LTE capability of the UE, the triggering reason of the access request, a blind redirection switch and the adjacent cell of the cell to which the UE requests to access when the judging result of the judging module is yes.
Preferably, the determining module is specifically configured to:
receiving the RRC access request message sent by the UE, performing ASN decoding on the RRC access request message, and acquiring and storing the trigger reason, the terminal protocol version and the LTE capability of the UE carried in the RRC access request message.
Preferably, the indication module is specifically configured to:
if the UE has the LTE capability, the cell has an LTE adjacent cell, the trigger reason meets the specified condition and the blind redirection switch is in an on state currently, sending the UE to perform redirection;
and if the UE does not have the LTE capability, or the cell does not have an LTE adjacent cell, or the trigger reason does not meet the specified condition, or the blind redirection switch is not in an on state currently, processing the access request according to the highest protocol version.
Preferably, the method further comprises the following steps:
a decoding module, configured to decode a transparent container carried in a redirection request message when the RNC receives the redirection request message sent by the UE;
the processing module is used for acquiring the terminal protocol version of the UE according to the transparent container and judging whether the terminal protocol version is higher than the highest protocol version supported by the processing module;
if the terminal protocol version is higher than the highest protocol version, the processing module accesses the UE according to the highest protocol version, and performs relocation processing on the UE after the LTE capability of the UE is processed;
if the terminal protocol version is not higher than the highest protocol version, the processing module performs relocation processing on the UE.
Preferably, the processing module performs relocation entry processing on the UE after the LTE capability of the UE is processed, specifically:
determining whether the UE is LTE capable;
if so, the processing module stores the capability information of the LTE capability and performs relocation processing on the UE after the storage is finished;
if not, the processing module performs relocation processing on the UE.
Therefore, by applying the technical scheme, after the RNC determines the terminal protocol version of the UE according to the access request sent by the terminal UE, the RNC judges whether the terminal protocol version is higher than the highest protocol version supported by the RNC, and when the judgment result is yes, the RNC redirects the UE or processes the access request according to the LTE capability of the UE, the triggering reason of the access request, the blind redirection switch and the adjacent cell of the cell to which the UE requests to access. Therefore, the success rate of RRC access and the success rate of re-access are improved, and the user perception and the investment of an operator are ensured.
Drawings
Fig. 1 is a schematic flowchart of a method for controlling UE access according to the present application;
fig. 2 is a schematic diagram of a processing flow of RRC access according to an embodiment of the present application;
fig. 3 is a schematic processing flow diagram of inter-system/intra-system relocation proposed in the embodiment of the present application;
fig. 4 is a schematic structural diagram of an RNC according to the present application.
Detailed Description
For a newly accessed terminal, a Radio Network Controller (RNC) in the current Network generally allocates resources according to a terminal version number indicated by an access message and organizes a corresponding version message to the terminal, for example, when the terminal accesses a REL-n (n is 3, 4, 5, 6, 7, 8, 9, …) version, the RNC organizes a corresponding REL-n version message to the terminal, the terminal version is carried in a RRC REQUEST message and a transparent Container (ToTargetRNC _ Container) into which the RNC relocates, taking RRC access and relocation as examples, during RRC access, the terminal sends an RRC CONNECTION REQUEST message to the UTRAN, the RNC performs ASN decoding on the message to resolve an IE (Information element) included in the message, the IE indicates a reason why the terminal sent the RRC REQUEST, a terminal protocol version and a terminal capability of the terminal, the RNC stores these pieces of Information, and then allocates corresponding local resources according to the terminal version number and the capability, And radio resources, and then organizing the RRC CONNECTION SETUP message which is the same as the version information according to the version information of the terminal and sending the RRC CONNECTION SETUP message to the terminal.
Similar to RRC access, relocation is performed from a heterogeneous system or another RNC to a current RNC, where the current RNC also needs to refer to terminal capability and version information carried in a transparent Container (ToTargetRNC _ Container), and the RNC allocates appropriate local resources and Radio resources to the terminal, and then organizes a corresponding version of RBC message (Radio Bearer Control) or a corresponding version of inter-system handover command (handover totransancommand) according to the version information to send to the heterogeneous system or a source RNC, so as to instruct the terminal to handover to a cell under the current RNC according to message configuration. Taking inter-RNC relocation as an example, the terminal version is contained in the ue-radio access capability IE and sent to the current RNC via a transparent Container (ToTargetRNC _ Container).
Based on the above situation, if the highest version of the current RNC is lower than the version indicated in the RRC access or relocation message, and the RNC side does not upgrade the ASN version and add a high protocol version processing branch, the current RNC cannot perform ASN decoding on the received RRC request code stream or the relocated transparent container code stream, resulting in an RRC access failure or relocation failure, which may not only affect user awareness and KPI, but also affect migration of the LTE terminal from other subsystems back to the LTE network and LTE network service offloading.
In view of the problems in the background art, the present application provides a method for controlling UE access, where an RRC access is performed on a high-version protocol terminal in a current RNC, and the RNC indicates a downgrade to a highest protocol version supportable by the RNC or designates a specific version, so that the terminal access higher than the highest version supported by the RNC can be admitted and moved back to an LTE network at a suitable time, or an RRC reject message is sent for the high-version RRC access request and carries redirection information (LTE/GSM neighbor information of a current cell) to indicate that the terminal is redirected to another network, and whether to use the downgrade access or the redirection can be determined on the RNC through configuration parameters. Correspondingly, for the relocation of the high-version protocol terminal in the current RNC, the RNC indicates the relocation to the highest protocol version which can be supported by the RNC or designates the highest protocol version as a certain specific version, organizes a handover command according to the highest protocol version or the certain specific version to indicate the terminal to carry out the relocation of the RNC, and enables the terminal to migrate back to the LTE network at a proper time, or for the high-version RNC relocation request, returns a relocation processing failure message, prohibits the relocation in the current RNC, and allows the relocation access of the relocation of the upgrading, or.
As shown in fig. 1, a flowchart of a UE access control method proposed by the present application is schematically illustrated, and the method includes the following steps:
s101, RNC determines the terminal protocol version of the UE according to the access request sent by the terminal UE.
In order to accurately acquire the condition of the UE, in a preferred embodiment of the present application, after receiving the RRC access request message sent by the UE, the RNC performs ASN decoding on the RRC access request message, and acquires and stores the trigger reason, the terminal protocol version, and the LTE capability of the UE, which are carried in the RRC access request message.
The method and the device upgrade the structure of an access message (rrc request, 3/4G interoperation relocation in or inter-RNC relocation in message) containing a protocol version, and when a terminal is accessed or relocated to a current RNC (radio network controller), if the protocol version of the terminal is higher than the highest protocol version supported by the current RNC, the RNC processes the protocol version of the terminal according to the highest protocol version which can be processed by the current RNC, namely, processes the terminal version reduction. Only the ASN file is modified, and the processing of the RRC CONNECTION REQUEST message corresponding to the high-version protocol and the SRNS RELOCATION INFO message relocated into the high-version protocol is added, so that the ASN decoder on the network side can correctly decode and process the message sent by the high-version terminal, for example, the RRC CONNECTION REQUEST message sent by the high-version terminal and the IE contained in the message can be correctly decoded.
S102, the RNC judges whether the terminal protocol version is higher than the highest protocol version supported by the RNC.
After the protocol version of the terminal is obtained through S101, the technical solution of the present application performs access processing on the accessed high-version terminal according to the highest protocol version that can be supported by the RNC, for example, the RNC supports the REL-9 version at the highest level, and the accessed terminal is the REL-11 version, so that the RNC organizes the RRC CONNECTION SETUP message according to the message format of the REL-9 version and sends the RRC CONNECTION SETUP message to the terminal, and the RRC access process is completed after the terminal replies the RRC CONNECTION SETUP COMPLETE message.
And S103, if so, the RNC instructs the UE to redirect or process the access request according to the highest protocol version according to the LTE capability of the UE, the triggering reason of the access request, a blind redirection switch and the adjacent cell of the cell to which the UE requests to access.
In the process of RRC access of a high-version terminal, if the reason for triggering the RRC request is a PS service related reason or a registration reason or an intersystem cell reselection reason, the terminal supports LTE capability, and the current cell is provided with an LTE adjacent cell, the RNC can send an RRC reject message carrying LTE redirection information to indicate the terminal to perform blind redirection after receiving an RRC access request message, and the function is controlled by an RNC switch. And if the LTE capability is not met or the current cell does not have any LTE adjacent cell or the RRC request reason is not met, processing according to the RRC normal access flow of the highest version which can be supported by the RNC.
Thus, in the preferred embodiment of the present application, this step is handled on the basis of:
(1) if the UE has the LTE capability, the cell has an LTE adjacent cell, the trigger reason meets the specified condition and the blind redirection switch is in an on state currently, the RNC sends the UE to perform redirection;
(2) and if the UE does not have the LTE capability, or the cell does not have an LTE adjacent cell, or the trigger reason does not meet the specified condition, or the blind redirection switch is not in an on state currently, the RNC processes the access request according to the highest protocol version.
It should be noted that, for the relocation process in S103, the present application is executed according to the same method, and in the subsequent process after RRC access or relocation, if the terminal has LTE capability, the RNC may determine whether to instruct the terminal to attempt intersystem relocation and migrate the intersystem relocation manner back to the LTE network according to whether the current serving cell configures LTE neighboring cell information. And for RNC relocation of a high-version terminal, processing relocation flow according to the highest protocol version supported by the RNC. After the relocation is successful, if the terminal has LTE capability and the current serving cell is configured with an LTE adjacent cell, the 3A measurement control message can be sent, and if the terminal reports a 3A measurement report carrying LTE information, the RNC judges whether to migrate to the LTE network in a relocation mode or a redirection mode. If a relocation mode is adopted, the RNC constructs a transparent container structure matched with the actual version of the UE and sends the transparent container structure to the eNB, and a relocation outflow process is processed according to the actual version of the UE; and if a redirection mode is adopted, sending a release message from the RRC according to the highest version supported by the RNC to carry LTE redirection information.
In a preferred embodiment of the present application, when the RNC receives a redirection request message sent by the UE, the RNC decodes a transparent container carried in the redirection request message, then obtains the terminal protocol version of the UE according to the transparent container, and determines whether the terminal protocol version is higher than a highest protocol version supported by the RNC. The different decision results and processing flows are as follows:
(1) and if the terminal protocol version is higher than the highest protocol version, accessing the UE according to the highest protocol version, and after the LTE capability of the UE is processed, performing relocation processing on the UE.
In this case, the RNC firstly judges whether the UE has the LTE capability, and if the judgment result is yes, the RNC stores the capability information of the LTE capability and performs relocation processing on the UE after the storage is completed; and if the judgment result is negative, the RNC performs relocation processing on the UE.
(2) And if the terminal protocol version is not higher than the highest protocol version, carrying out relocation processing on the UE.
It should be noted that, for a high-version terminal that is relocated, if the terminal supports LTE capability and the current serving cell has an LTE neighboring cell, a 3A measurement control message is sent to measure the LTE neighboring cell, and if the terminal reports a measurement report of the LTE neighboring cell, the RNC determines whether to adopt redirection or relocation according to the service type, the principle is that if CS service adopts a relocation manner, and if PS service redirection or relocation manner can be adopted. Therefore, after the high-version terminal is accessed in a downgrade mode, if a 3A measurement report message carrying LTE information is received and relocation needs to be initiated, the message in the transparent container is organized according to the actual version of the terminal, only a high-version relocation processing branch needs to be added, and other high-version protocol processing branches do not need to be added.
In order to further explain the technical idea of the present application, the technical solution of the present application is now described with reference to specific application scenarios.
As shown in fig. 2, a schematic processing flow diagram of RRC access proposed in the embodiment of the present application includes the following steps:
step a) if the ASN is the RRC request message after decoding, judging whether the UE version is higher than the highest protocol version supported by the current RNC, if not, storing the version information to the UE context (UE Contex) according to the normal RRC access processing, and sending the RRC CONNECTION SETUP message matched with the access version by the RNC side.
And b) if the version is higher than the highest protocol version of the RNC, processing according to the highest protocol version supported by the RNC, storing the version information to the UE context (UE Contex), if the RRC request carries the LTE capability, storing the LTE capability information, subsequently judging whether the LTE capability can be transferred back to the LTE network or not, referring to the capabilities, if the blind redirection condition is met, initiating redirection, and if the blind redirection condition is not met, processing according to normal RRC access.
The processing of other subsequent signaling procedures in step c) is processed by the protocol version stored in the UE context (UE Contex).
As shown in fig. 3, a schematic processing flow diagram for inter-system/intra-system relocation provided in the embodiment of the present application includes the following steps:
step a) the current RNC receives the relocation request message and decodes the transparent Container (ToTargetRNC _ Container) carried in the message.
Step b) obtaining the version carried in the transparent container, comparing with the protocol version supported by the RNC at present, if the version is lower than the highest version supported by the RNC, accessing according to the version carried by the transparent container, and storing the version information in the UE context (UE Contex).
And c) if the version carried in the transparent container is higher than the protocol version supported by the RNC, performing version reduction access on the terminal, distributing resources according to the highest protocol version supported by the RNC, organizing a switching command, storing the version information into a UE context (UE Contex), and simultaneously storing the real version of the UE.
Step d) for other processes after the relocation is successful, if the relocation is successful and the UE real version is valid, the RNC constructs a transparent container structure the same as the UE real version and sends the transparent container structure to a target RNC/eNB for processing the relocation flow, otherwise, the processing is carried out according to the version in the UE context.
To achieve the above technical object, the present application provides a radio network controller RNC, as shown in fig. 4, including:
a determining module 410, configured to determine a terminal protocol version of a terminal UE according to an access request sent by the UE;
the judging module 420 judges whether the terminal protocol version is higher than the highest protocol version supported by the terminal protocol version;
and an indicating module 430, configured to, when a determination result of the determining module is yes, instruct the UE to perform redirection or process the access request according to the highest protocol version according to the LTE capability of the UE, a trigger reason of the access request, a blind redirection switch, and a neighboring cell of a cell to which the UE requests access.
In a specific application scenario, the determining module is specifically configured to:
receiving the RRC access request message sent by the UE, performing ASN decoding on the RRC access request message, and acquiring and storing the trigger reason, the terminal protocol version and the LTE capability of the UE carried in the RRC access request message.
In a specific application scenario, the indication module is specifically configured to:
if the UE has the LTE capability, the cell has an LTE adjacent cell, the trigger reason meets the specified condition and the blind redirection switch is in an on state currently, sending the UE to perform redirection;
and if the UE does not have the LTE capability, or the cell does not have an LTE adjacent cell, or the trigger reason does not meet the specified condition, or the blind redirection switch is not in an on state currently, processing the access request according to the highest protocol version.
In a specific application scenario, the method further includes:
a decoding module, configured to decode a transparent container carried in a redirection request message when the RNC receives the redirection request message sent by the UE;
the processing module is used for acquiring the terminal protocol version of the UE according to the transparent container and judging whether the terminal protocol version is higher than the highest protocol version supported by the processing module;
if the terminal protocol version is higher than the highest protocol version, the processing module accesses the UE according to the highest protocol version, and performs relocation processing on the UE after the LTE capability of the UE is processed;
if the terminal protocol version is not higher than the highest protocol version, the processing module performs relocation processing on the UE.
In a specific application scenario, the processing module performs relocation entry processing on the UE after processing the LTE capability of the UE, specifically:
determining whether the UE is LTE capable;
if so, the processing module stores the capability information of the LTE capability and performs relocation processing on the UE after the storage is finished;
if not, the processing module performs relocation processing on the UE.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented by hardware, and also by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the implementation scenarios of the present application.
Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the figures are not necessarily required to practice the present application.
Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
The above application serial numbers are for description purposes only and do not represent the superiority or inferiority of the implementation scenarios.
The above disclosure is only a few specific implementation scenarios of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.
Claims (8)
1. A method for controlling access of a terminal UE (user equipment), comprising the following steps:
a Radio Network Controller (RNC) determines a terminal protocol version of a terminal User Equipment (UE) according to an access request sent by the UE;
the RNC judges whether the protocol version of the terminal is higher than the highest protocol version supported by the RNC;
if so, the RNC instructs the UE to redirect or process the access request according to the highest protocol version according to the Long Term Evolution (LTE) capability of the UE, the triggering reason of the access request, a blind redirection switch and the adjacent cell of the cell to which the UE requests to access; wherein,
the RNC instructs the UE to redirect or process the access request according to the highest protocol version according to the LTE capability of the UE, the trigger reason of the access request, a blind redirection switch, and a neighboring cell of the cell to which the UE requests access, specifically:
if the UE has the LTE capability, the cell has an LTE adjacent cell, the trigger reason meets the specified condition and the blind redirection switch is in an on state currently, the RNC sends the UE to perform redirection;
and if the UE does not have the LTE capability, or the cell does not have an LTE adjacent cell, or the trigger reason does not meet the specified condition, or the blind redirection switch is not in an on state currently, the RNC processes the access request according to the highest protocol version.
2. The method of claim 1, wherein the RNC determines, according to an access request sent by a terminal UE, a version of a terminal protocol of the UE, specifically:
the RNC receives an RRC access request message sent by the UE;
and the RNC carries out ASN decoding on the RRC access request message, and acquires and stores the trigger reason, the terminal protocol version and the LTE capacity of the UE carried in the RRC access request message.
3. The method of claim 1, further comprising:
when the RNC receives a redirection request message sent by the UE, the RNC decodes a transparent container carried in the redirection request message;
the RNC acquires the terminal protocol version of the UE according to the transparent container and judges whether the terminal protocol version is higher than the highest protocol version supported by the RNC;
if the terminal protocol version is higher than the highest protocol version, accessing the UE according to the highest protocol version, and after the LTE capability of the UE is processed, performing relocation access processing on the UE;
and if the terminal protocol version is not higher than the highest protocol version, carrying out relocation processing on the UE.
4. The method of claim 3, wherein the performing the relocation procedure on the UE after the LTE capability of the UE is completed comprises:
determining whether the UE is LTE capable;
if so, the RNC stores the capability information of the LTE capability and performs relocation processing on the UE after the storage is finished;
and if not, the RNC performs relocation processing on the UE.
5. A radio network controller, RNC, comprising:
the determining module is used for determining the terminal protocol version of the UE according to the access request sent by the terminal UE;
the judging module is used for judging whether the terminal protocol version is higher than the highest protocol version supported by the judging module;
an indication module, configured to indicate the UE to perform redirection or process the access request according to the highest protocol version when a determination result of the determination module is yes, according to the long term evolution LTE capability of the UE, a trigger reason of the access request, a blind redirection switch, and a neighboring cell of a cell to which the UE requests access; wherein,
the indication module is specifically configured to:
if the UE has the LTE capability, the cell has an LTE adjacent cell, the trigger reason meets the specified condition and the blind redirection switch is in an on state currently, sending the UE to perform redirection;
and if the UE does not have the LTE capability, or the cell does not have an LTE adjacent cell, or the trigger reason does not meet the specified condition, or the blind redirection switch is not in an on state currently, processing the access request according to the highest protocol version.
6. The RNC of claim 5, wherein the determining module is specifically configured to:
receiving the RRC access request message sent by the UE, performing ASN decoding on the RRC access request message, and acquiring and storing the trigger reason, the terminal protocol version and the LTE capability of the UE carried in the RRC access request message.
7. The RNC of claim 5, further comprising:
a decoding module, configured to decode a transparent container carried in a redirection request message when the RNC receives the redirection request message sent by the UE;
the processing module is used for acquiring the terminal protocol version of the UE according to the transparent container and judging whether the terminal protocol version is higher than the highest protocol version supported by the processing module;
if the terminal protocol version is higher than the highest protocol version, the processing module accesses the UE according to the highest protocol version, and performs relocation processing on the UE after the LTE capability of the UE is processed;
if the terminal protocol version is not higher than the highest protocol version, the processing module performs relocation processing on the UE.
8. The RNC of claim 7, wherein the processing module performs relocation process on the UE after processing the LTE capability of the UE, specifically:
determining whether the UE is LTE capable;
if so, the processing module stores the capability information of the LTE capability and performs relocation processing on the UE after the storage is finished;
if not, the processing module performs relocation processing on the UE.
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| CN109246771B (en) * | 2017-05-08 | 2020-08-28 | 大唐移动通信设备有限公司 | Terminal redirection method and base station |
| CN107342979A (en) * | 2017-06-02 | 2017-11-10 | 华为技术有限公司 | Handle the method and terminal device of package |
| CN109495934B (en) * | 2017-09-12 | 2021-11-02 | 中兴通讯股份有限公司 | Call conversation method, related equipment and storage medium |
| EP4167681B1 (en) * | 2020-07-03 | 2024-08-07 | Huawei Technologies Co., Ltd. | Communication method and apparatus |
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