WO2011124125A1

WO2011124125A1 - Terminal called processing and test method, and long term evolution system

Info

Publication number: WO2011124125A1
Application number: PCT/CN2011/072450
Authority: WO
Inventors: 马伟
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-04-09
Filing date: 2011-04-02
Publication date: 2011-10-13
Also published as: CN102215517B; CN102215517A

Abstract

A terminal called processing method, terminal called test method and Long Term Evolution (LTE) system are provided. The terminal called processing method includes the following steps: a network side of the LTE system sends a paging message to the terminal which is called by a circuit switch service and resident in the LTE cell (S102); the terminal establishes a radio resource control (RRC) link with the network side (S104); the terminal sends the network side the message for requesting to establish the circuit switch service (S106); the network side sends the terminal the carrier frequency information of the Global System for Mobile Communication (GSM) cell where the terminal needs to be redirected (S108); the terminal sends a RRC connection request message to the GSM cell; the GSM cell establishes a call bearer with the terminal; and the terminal establishes the circuit switch service in the GSM cell (S110). By applying the invention, when called by the circuit switch service, the terminal resident in the LTE cell can fallback to the corresponding network cell to establish the circuit switch service.

Description

The present invention relates to the field of communications, and in particular to a terminal called process, a test method, and a Long Time Evolution (LTE) system.

LTE, as a research project of the 3rd Generation Partnership Projective (3GPP), has formed a complete wireless communication standard and is gradually being promoted worldwide. However, LTE does not support the Circuit Switch (CS) service. Therefore, the terminal cannot directly establish a CS call in the LTE cell. If the terminal resides in the cell of LTE, and the terminal is called by the circuit domain service at this time, the LTE system cannot process the circuit domain service call, resulting in the call failure. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a terminal called processing scheme to solve at least the above problems. In order to achieve the above object, according to an aspect of the present invention, a method for processing a terminal called, the method includes the following steps: The network side of the Long Term Evolution (LTE) system sends a paging message to a circuit domain service residing in an LTE cell. Calling the terminal; the terminal establishes a radio resource control link with the network side; the terminal sends a message for requesting establishment of the circuit domain service to the network side; the network side terminal transmits the carrier frequency information of the global mobile communication GSM cell to which the terminal needs to be redirected; Sending a radio resource control connection request message to the GSM cell; the GSM cell establishes a call with the terminal 7; the terminal establishes a circuit domain service in the GSM cell. Preferably, the transmitting, by the network side terminal, the carrier frequency information of the GSM cell comprises: the network side transmitting the radio resource control link release message to the terminal, wherein the radio resource control link release message carries the carrier frequency information of the GSM cell. Preferably, the RRC information carries the redirection information or the mobility control information in the idle state, and the redirection information or the mobility control information in the idle state includes the carrier frequency information of the GSM cell. Preferably, the sending, by the terminal, the message for requesting to establish the circuit domain service to the network side includes: the terminal carrying the extended service request message in the uplink information transmission message sent to the network side, where the extended service request message is used to request to establish the circuit domain service . In order to achieve the above object, according to another aspect of the present invention, a terminal called test method is provided, including the following steps: The network side of the Long Term Evolution (LTE) system sends a paging message to a circuit domain service camped on an LTE cell. The terminal establishes a radio resource control link with the network side; detects whether the terminal sends a message for requesting to establish a circuit domain service to the network side; and if the message for requesting establishment of the circuit domain service is detected, the LTE network sends the terminal to the terminal. The carrier frequency information of the GSM cell to be redirected to; otherwise, the test fails; detecting whether the terminal sends a radio resource control link request message to the GSM cell, and if the transmission radio resource control connection request message is not detected, the test fails. Preferably, the detecting whether the terminal sends the message for requesting to establish the circuit domain service to the network side includes: detecting whether the terminal sends the uplink information transmission message to the network side, and whether the uplink information transmission message carries the extended service request message, where The service request message is used to request the establishment of a circuit domain service. Preferably, the system simulator simulates a cell of LTE and a GSM cell. Preferably, the terminal is connected to the system simulator through an interface of the LTE cell or the GSM cell. In order to achieve the above object, according to still another aspect of the present invention, a long term evolution system is provided, including: a network side and a terminal, where the network side is configured to send a paging message to a terminal called a circuit domain service camped on an LTE cell. The terminal establishes a radio resource control link with the network side; the terminal is configured to send a message for requesting establishment of the circuit domain service to the network side; and the network side is further configured to send the terminal to the terminal to be redirected if the message is received. The carrier frequency information of the GSM cell; the terminal is further configured to send a radio resource control connection request message to the GSM 'J, the area; the GSM 'J, the area is also used to establish a call bearer with the terminal; the terminal is further configured to establish the cell corresponding to the cell information Circuit domain business. According to the present invention, the carrier frequency information of the GSM cell is transmitted by the network side terminal of the LTE, and the terminal establishes the circuit domain service in the GSM cell. The problem that the LTE cannot process the call and the call fails when the terminal that is camped on the LTE cell in the related art is called by the circuit domain service is solved, so that the call resides in the The terminal of the LTE cell may fall back to the cell of the corresponding network when calling by the circuit domain to establish the circuit domain service. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart showing a method for processing a terminal called according to the first embodiment of the present invention; FIG. 2 is a flow chart showing a preferred method for processing a terminal called according to the first embodiment of the present invention; It is a flowchart of a method for testing a terminal called according to the second embodiment of the present invention; FIG. 4 is a flowchart of a preferred method for testing a terminal called according to the second embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. In the following embodiments, the terminal camps on the LTE cell and is called by the circuit domain service when the terminal is in the standby state (or idle state). Embodiment 1 FIG. 1 is a flowchart of a method for processing a terminal called according to Embodiment 1 of the present invention. The process includes the following steps: Step 4: S 102, and a terminal camped on the LTE cell is called by a circuit domain service; Step S104: The network side and the terminal establish a radio resource control (Radio Resource Control, abbreviated as RRC) link; Step S106, the terminal sends a message for requesting to establish a circuit domain service to the network side; Step S108, the network side terminal Sending the carrier frequency information of the Global System for Mobile Communication (GSM) network cell to which the terminal needs to be redirected; Step S110: The terminal establishes a circuit domain service in the GSM cell. Preferably, the terminal establishing the circuit domain service in the GSM cell comprises the following steps: the terminal sends a radio resource control connection request message to the GSM cell; the GSM cell establishes a call with the terminal 7; and the terminal establishes a circuit domain service in the GSM cell. Through the above steps, the terminal residing in the LTE cell can fall back to the cell of the corresponding network when the service is called by the circuit domain to establish the circuit i or the service. Preferably, the network side terminal sends a radio resource control link release message, where the radio resource control link release message carries carrier frequency information of the GSM cell. After the RRC link release message, the terminal can obtain the carrier frequency information of the GSM cell after receiving the message, and on the other hand, the terminal can release the RRC link in the LTE. Of course, the carrier frequency information of the GSM cell of the terminal may also be notified by other messages, but using other messages is not as simple as releasing the message by using the RRC link. The redirection information or the mobility control information in an idle state may be carried in the RRC link release message, where the redirection information or the mobility control information in the idle state includes carrier frequency information of the GSM cell. Preferably, the terminal may carry the extended service request message in the uplink information transmission message sent to the network side, where the extended monthly service request message is used to request to establish the circuit domain service. Of course, it is also possible to notify the network side through other messages, and it is also easier to implement the extension server request message. Preferably, the network side sends a paging (Paging) message, where the paging message carries information indicating that the terminal is called by the circuit domain service. Corresponding to the foregoing description, in the embodiment, a long-term evolution system is further provided, including: a network side and a terminal, where the network side is configured to send a paging message to a circuit domain service called terminal that resides in an LTE cell. The terminal establishes a radio resource control link with the network side; the terminal is configured to send a message for requesting establishment of the circuit domain service to the network side; and the network side is further configured to send the carrier frequency information of the GSM cell to the terminal when the message is received. The terminal is further configured to send a radio resource control connection request message to the GSM cell; the GSM cell is further configured to establish a call bearer with the terminal; and the terminal is further configured to establish a circuit domain service in the cell corresponding to the cell information. 2 is a flow chart of a preferred method for processing a terminal called according to the first embodiment of the present invention. The process includes the following steps: Step S201: The LTE network sends a paging message to the terminal. Step S202: The terminal sends an RRC link request message to the LTE network side. Step S203: The LTE network side sends an RRC link setup message to the terminal. Step S204: The terminal sends an RRC link setup complete message to the LTE network side. Step S205: The terminal sends the uplink information. Transmitting the message to the LTE network side; Step S206: The LTE network side sends an RRC link release message to the terminal. Step S207: The GSM cell indicated by the terminal in the RRC link release message responds to the called party. In the above step S201, the LTE system side sends a Paging message to the terminal, and the Paging message notifies the terminal to be called. In the above step S205, the terminal sends a UL information Transfer message, and carries an EXTENDED SERVICE REQUEST message to request to establish a monthly service. In the above step S206, the LTE network side decides to let the terminal respond to the called in the GSM network, and then sends an RRC link release message to the terminal. And in the RRC Connection Release message, the RRC link release message includes the idle mode Mobility Control Info indicating that the terminal needs the carrier frequency of the corresponding called GSM cell. Step S207, the corresponding call of the terminal in the GSM cell includes: the terminal establishes an RRC link with the network, and activates the establishment process of the security mode and the call bearer. The second embodiment provides a test solution for the solution provided in the first embodiment in the embodiment. It should be noted that any one of the messages involved in the implementation of the first embodiment may be detected to detect whether the message is sent and / or receive success, and feedback the results of the test. The test method provided in this embodiment detects relatively important messages, so that the normal operation of the network can be ensured with a minimum of test procedures. The test method provided in this embodiment can be applied to an actual network, and can also be applied to an analog system. When applied to an analog system, the terminal is connected to the system simulator through a GSM or LTE wireless interface; The LTE cell and the GSM cell are simulated, according to the received terminal message-risk terminal capability. FIG. 3 is a flowchart of a terminal called test method according to Embodiment 2 of the present invention, where the process includes the following steps: Step S302, the terminal of the cell camping in the LTE is called by the circuit domain service; Step S304, the network side establishes a radio resource control link with the terminal; Step S306, detecting whether the terminal sends a message for requesting to establish the circuit domain service to the network side; If the message for requesting to establish the circuit domain service is detected, the network side sends the carrier frequency information of the GSM cell to which the terminal needs to be redirected; otherwise, the test fails; Step S308, detecting whether the terminal establishes a circuit in the GSM cell. In the domain service, if the establishment of the circuit domain service fails, the test fails. The detecting whether the circuit domain service is established includes: detecting whether the terminal cell sends an RRC link request message to the cell after performing the routing area update, and if not, establishing the circuit domain service fails. Preferably, the uplink information transmission message sent by the terminal to the network side is detected, and the extended service request message is carried in the uplink information transmission message, where the extended service request message is used to request to establish the circuit domain service. If it is not detected then the test fails. FIG. 4 is a flow chart showing a preferred method for testing a terminal called according to the second embodiment of the present invention. The process includes the following steps: Step S401: The system simulator LTE 'J, the area sends a paging message to the terminal; Step S402, the terminal Sending an RRC link request message to the LTE cell of the system simulator; Step S403, the LTE 'J of the system simulator sends an RRC link setup message to the terminal; Step S404, the terminal sends an RRC link setup complete message to the LTE cell of the system simulator Step S405: The terminal sends an uplink information transmission message to the LTE cell of the system simulator. Step S406, the LTE cell of the system simulator sends an RRC link release message to the terminal. Step S407, - Whether the risk certificate terminal sends an RRC link setup request message to The GSM cell of the system simulator; if sent, the test passes. In step S406, the RRC link release message sent by the LTE cell of the system simulator includes the mobile control information in the idle state. The mobile control information in the idle state is given by the terminal to re-initiate the carrier frequency of the GSM corresponding to the called party. In summary, the foregoing embodiments of the present invention solve the problem that the LTE cannot process the call when the terminal residing in the LTE cell is called by the circuit domain service, and the call fails in the LTE cell. The cell can be rolled back to the cell of the corresponding network when the service is called by the circuit domain to establish the circuit domain service. Moreover, it is also possible to perform tests efficiently. Obviously, 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. Alternatively, they 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. Thus, 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 scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claims A method for handling a terminal called, including the following steps:

The network side of the LTE sends a paging message to the called terminal of the circuit domain service residing in the LTE cell; the terminal establishes a radio resource control link with the network side;

Sending, by the terminal, a message for requesting establishment of the circuit domain service to the network side;

Transmitting, by the network side, carrier frequency information of a global mobile communication GSM cell to which the terminal needs to be redirected;

The terminal sends a radio resource control connection request message to the GSM cell; the GSM cell establishes a call with the terminal;

The terminal establishes the circuit i or service in the GSM cell. According to the method of claim 1, the transmitting, by the network side, the carrier frequency information of the GSM cell to the terminal includes:

The network side sends a radio resource control link release message to the terminal, where the radio resource control link release message carries carrier frequency information of the GSM cell. The method according to claim 2, wherein the radio resource control link release message carries redirection information or mobility control information in an idle state, the redirection information or the mobile control information in the idle state The carrier frequency information of the GSM cell is included. The method according to claim 1, wherein the sending, by the terminal, the message for requesting to establish the circuit domain service to the network side includes:

The terminal carries the extended service request message in the uplink information transmission message sent to the network side, where the extended service request message is used to request to establish the circuit domain service. A terminal called test method includes the following steps:

The network side of the Long Term Evolution (LTE) system LTE sends a paging message to the called terminal of the circuit domain service residing in the LTE cell; Establishing, by the terminal, a radio resource control link with the network side;

Detecting whether the terminal sends a message for requesting to establish the circuit domain service to the network side; if the message for requesting establishment of the circuit domain service is detected, the LTE network is directed to the terminal Transmitting carrier frequency information of the GSM cell to which the terminal needs to be redirected; otherwise, the test fails;

Detecting whether the terminal sends a radio resource control link request message to the GSM cell, and if the radio resource control connection request message is not detected, the test fails.

The method according to claim 5, wherein detecting whether the terminal sends a message for requesting to establish the circuit domain service to the network side comprises:

Detecting whether the terminal sends an uplink information transmission message to the network side, and whether the uplink information transmission message carries an extended service request message, where the extended monthly service request message is used to request to establish the circuit domain. business.

The method according to claim 5 or 6, wherein the system simulator simulates the cell of the LTE and the GSM cell.

The method according to claim 7, wherein the terminal is connected to the system simulator through an interface of the LTE or an interface of the GSM cell.

9. A long-term evolution system, including: a network side and a terminal,

The network side is configured to send a paging message to the terminal called by the circuit domain service residing in the LTE cell;

Establishing, by the terminal, a radio resource control link with the network side;

The terminal is configured to send, to the network side, a message for requesting establishment of the circuit domain service;

The network side is further configured to send, to the terminal, carrier frequency information of a GSM cell to which the terminal needs to be redirected, if the message is received;

The terminal is further configured to send a radio resource control connection request message to the GSM cell;

The GSM cell is further configured to establish a call with the terminal 7; The terminal is further configured to establish the circuit domain service in a cell corresponding to the cell information.