JP4741974B2 - State transition test apparatus and test method for base station apparatus - Google Patents

Description

  The present invention relates to a state transition test of a base station device, particularly a state transition test of a base station device when a state between the base station device and the subscriber device transitions, such as when the subscriber device moves between cells. About.

  When a mobile communication terminal such as a mobile phone or PHS moves between cells that are units of the service area of each base station, such as when the state transitions between the base station device and the subscriber device, In addition, it is necessary to adjust the synchronization timing between the base station apparatus and the subscriber apparatus. Therefore, it is important to test whether the base station apparatus can appropriately cope with the state transition.

  FIG. 4 is a block diagram showing this type of prior art (not related to the literature known invention). The subscriber device 1 is a mobile communication terminal used by a user such as a mobile phone or a PHS, and includes a receiving unit 10, a reception processing unit 11, a transmission processing unit 12, a transmission unit 13, and a state control unit 14. . The base station device 2 is a device that relays outgoing calls from the subscriber device 1 and incoming calls to the subscriber device 1, and includes a receiving unit 20, a receiving processing unit 21, a transmitting processing unit 22, a transmitting unit 23, and a state control unit 24. Consists of. The base station control device 3 is a device that controls a large number of base stations 2, and includes a reception unit 30, a reception processing unit 31, a transmission processing unit 32, and a transmission unit 33. The subscriber devices 1 communicate with each other via the base station control device 3 and the base station 2.

  FIG. 5 is a sequence diagram showing a procedure of a state transition test method for a base station apparatus according to the prior art. Now, when the state of the subscriber apparatus 1 is changed from A to B while a frame signal is sent to the subscriber apparatus 1 and the base station apparatus 2, this state change is detected by the state control unit 14 of the subscriber apparatus 1 ( T1 in FIG. At this time, the state control unit 14 notifies the transmission processing unit 12 of the state change, the transmission processing unit 12 generates a state setting request message, and transmits the state setting request message to the base station control device 3 via the transmission unit 13. (T2 in FIG. 5).

  In the base station control device 3, the reception unit 30 receives the state setting request message, the analysis processing in the reception processing unit 31 is performed, the transmission processing unit 32 generates a state setting request response message, and the transmission unit 33 receives the subscriber device. Reply to 1 (T3 in FIG. 5). Further, the transmission unit 33 transmits a state setting request message generated in the same procedure based on the state setting request message for the state B received from the subscriber apparatus 1 to the base station apparatus 2 (T4 in FIG. 5). In the base station apparatus 2 that has received the state setting request message by the receiving unit 20, after the reception processing unit 21 sets the parameters related to the transition to the state B, the transmission processing unit 22 generates a state setting request response message, To the base station control device 3 via (T5 in FIG. 5).

  Next, after receiving the status setting request response message from the base station device 2, the base station control device 3 transmits a synchronization correction setting message to the base station device 2 (T6 in FIG. 5). The information of the synchronization correction setting message includes a frame number at the time of executing state switching, and is output from the reception processing unit 21 to the state control unit 24 as a synchronization correction signal. This frame number is appropriately selected so that switching can be made in time based on the current frame number. The state control unit 24 compares the received synchronization correction signal with the frame signal, and performs state switching when the frame numbers match.

  The base station control device 3 also transmits a synchronization correction setting message to the subscriber device 1 (T7 in FIG. 5), and the state control unit 14 performs the same processing operation on the subscriber device 1 side.

  FIG. 6 shows an example in which the state is switched by the frame number. The subscriber device 1 and the base station device 2 that have received the synchronization correction setting message from the base station control device 3 switch from the state A to the state B at the timing of the frame number, as shown in FIG. The transition of the state can be confirmed by a decrease in the received radio wave level from the state A cell and an increase in the received radio wave level from the state B cell. When both the subscriber apparatus 1 and the base station apparatus 2 are in the state B, data transmission / reception is performed between the base station control apparatus 3 and the subscriber apparatus 1 (T8 in FIG. 5).

  Further, although not related to the synchronization between the subscriber apparatus 1 and the base station apparatus 2 associated with the state transition, Patent Document 1 describes whether the connection state of the mobile communication terminal is appropriately transitioning between cells. Describes a technology that enables visual recognition of the connection state or the progress of the test.

  Furthermore, although not related to synchronization associated with movement between cells, Patent Document 2 discloses an instruction for a mobile terminal to add packet communication from a user while the mobile terminal and a base station are performing voice communication. In order to start communication combining the communication related to the first call and the communication related to the second call, such as accepting the communication, an attempt is made to establish synchronization between the mobile terminal and the base station, and the switchback time has arrived. A technique is described in which, if synchronization cannot be established by this time, the establishment of synchronization is stopped and communication related to the first call is resumed.

Japanese Patent Laid-Open No. 2004-289679 (page 2 to page 4, FIG. 1) Japanese Unexamined Patent Publication No. 2003-188775 (pages 4 to 6, FIG. 1)

  In the prior art described with reference to FIG. 4 to FIG. 6, the frame number when the base station control device executes state switching is determined by the timing at which the subscriber device is moved to create a state change. In order to test the state switching operation at the timing, there is a problem that it is troublesome to test the switching at various timings that may occur in practice.

  Therefore, an object of the present invention is to provide a state transition test apparatus and a test method for a base station apparatus that can easily test state switching at an arbitrary timing.

  A state transition test apparatus for a base station apparatus according to the present invention performs state switching in a state transition test apparatus for a base station apparatus that relays outgoing calls from a subscriber apparatus and incoming calls to a subscriber apparatus under the control of a base station control apparatus. The subscriber device simulator (1S in FIG. 1) and the base station controller simulator (3S in FIG. 1) in which the scenario, which is the specification information of the synchronization timing, is downloaded in advance, and the subscriber device simulator (1S in FIG. 1) When a change in state is detected, if there is a processing margin, a function for transmitting a state setting request message to the base station control device simulator and a state setting request response message from the base station control device simulator are included in the scenario. The function to generate the synchronization correction signal based on the specified synchronization timing information, the synchronization correction signal and the current frame signal When the frame number matches, the base station controller simulator (3S in FIG. 1) sets the parameters related to the state transition and receives the state setting request message when receiving the state setting request message. A response message is returned to the subscriber unit simulator, and a state setting request message is transmitted to the base station (2 in FIG. 1). When the state setting request response message is received from the base station, the synchronization included in the scenario The base station (2 in FIG. 1) has a function of transmitting a synchronization correction setting message to the base station based on timing designation information. When the base station (2 in FIG. 1) receives the state setting request message, it sets parameters relating to state transition, and also performs synchronization correction When a setting message is received, a synchronization correction signal is generated, and the frame number matches by comparing the synchronization correction signal with the current frame signal. It is characterized in that state switching is carried out when it is done.

  Specifically, the subscriber unit simulator (1S in FIG. 1) detects a change in state and notifies the state change when there is a processing margin, and also performs a state switch (14 in FIG. 1). ), A script processing unit (11S in FIG. 1) that downloads the scenario and generates a synchronization correction signal, and a transmission control unit (12 in FIG. 1) that generates a status setting request message when a status change is notified Is provided.

  Further, the base station control device simulator (3S in FIG. 1) generates a state setting request response message and a state setting request message to the base station in response to the state setting request message from the subscriber device simulator. In response to the status setting request response message, a transmission processing unit (32 in FIG. 1) that generates a synchronization correction setting message, downloads the scenario, and transmits it based on the synchronization timing designation information included in the scenario. A script processing unit (31S in FIG. 1) is provided that outputs a signal for causing the processing unit to generate a synchronization correction setting message.

  Further, in the subscriber unit simulator (1S in FIG. 1), the state is considered in consideration of the processing margin from the frame number of the current frame signal and the frame number included in the scenario to the state switching timing in the base station device. Send a setup request message.

  In the present invention, first, a scenario, which is specification information of synchronization timing for executing state switching, is downloaded in advance to the subscriber unit simulator and the base station control unit simulator. When a change in state is detected in the subscriber unit simulator, if there is a processing margin, a state setting request message is transmitted to the base station control unit simulator.

  When the base station controller simulator receives the state setting request message, it sets a parameter relating to state transition and returns a state setting request response message, and transmits a state setting request message to the base station. When the subscriber unit simulator receives the state setting request response message from the base station controller simulator, it generates a synchronization correction signal based on the synchronization timing designation information included in the scenario, and the synchronization correction signal and the current frame signal When the frame numbers match, state switching is performed.

  When the base station receives the state setting request message, it sets parameters relating to state transition. When the base station controller simulator receives the state setting request response message from the base station, it transmits a synchronization correction setting message to the base station based on the synchronization timing designation information included in the scenario. When the base station receives the synchronization correction setting message, it generates a synchronization correction signal, compares the synchronization correction signal with the current frame signal, and performs state switching when the frame numbers match.

  In the present invention, the synchronization from the base station control device simulator to the subscriber device simulator is performed by specifying the synchronization timing in the scenario for executing the script processing downloaded to the subscriber device simulator and the base station control device simulator. Without performing correction setting, it is possible to execute the state switching of the base station and the subscriber unit simulator at the same timing, and it is possible to easily evaluate the state transition. In addition, since the synchronization timing can be specified in the scenario, the state switching operation can be performed at an arbitrary timing.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[Description of configuration]
FIG. 1 is a block diagram showing the configuration of a state transition test apparatus for a base station apparatus according to the present invention together with the base station apparatus. This test apparatus includes a subscriber apparatus simulator (hereinafter referred to as “UE simulator”) 1S and a base station control apparatus simulator (hereinafter referred to as “RNC simulator”) 3S.

  The UE simulator 1S is a subscriber device pseudo device that is a mobile communication terminal used by a user such as a mobile phone or a PHS, and includes a reception unit 10, a script processing unit 11S, a transmission processing unit 12, a transmission unit 13, and a state. The controller 14 is configured. The base station device 2 is a device that relays outgoing calls from the subscriber devices and incoming calls to the subscriber devices. The base station device 2 includes a receiving unit 20, a receiving processing unit 21, a transmitting processing unit 22, a transmitting unit 23, and a state control unit 24. Is done. The RNC simulator 3S is a pseudo device of a base station control device that controls a large number of base stations 2, and includes a receiving unit 30, a script processing unit 31S, a transmission processing unit 32, and a transmitting unit 33.

  As apparent from comparison with the conventional test apparatus shown in FIG. 4, this test apparatus is such that the subscriber apparatus 1 is a UE simulator 1S, and the reception processing section 11 of the subscriber apparatus 1 is a script processing section 11S of the UE simulator 1S. The base station control device 3 is replaced with the RNC simulator 3S, and the reception processing unit 31 of the base station control device 3 is replaced with the script processing unit 31S of the RNC simulator 3S. The script processing unit 11S and the script processing unit 31S download the same state transition scenario (hereinafter referred to as “scenario”) 40 and 50 when performing the state transition test. A scenario is information for specifying a synchronization timing at which state switching is to be performed, and a frame number at which state switching is to be performed can be determined from this.

  The receiving unit 10 of the UE simulator 1S receives a message from the RNC simulator 3S and transmits it to the script processing unit 11S, and the transmitting unit 13 transmits the message to the RNC simulator 3S. The receiving unit 20 of the base station apparatus 2 receives a message from the RNC simulator 3S and transmits it to the reception processing unit 21, and the transmitting unit 23 transmits the message to the RNC simulator 3S. The receiving unit 30 of the RNC simulator 3S receives a message from the UE simulator 1S and the base station device 2, transmits the message to the script processing unit 31S, and transmits the message to the UE simulator 1S and the base station device 2.

  Upon receiving the received state setting request response message, the script processing unit 11S of the UE simulator 1S generates a synchronization correction signal (script processing) based on the synchronization timing designation information included in the scenario, and the state control unit Output to 14. When the state control unit 14 detects a change in state, the state control unit 14 performs processing in consideration of a processing margin from the frame number at that time and the frame number included in the synchronization correction signal to the state switching timing in the base station apparatus 2. If there is a margin, the transmission processing unit 12 is notified of a state change. When the synchronization correction signal is received, the synchronization correction signal is compared with the current frame signal, and the state is switched when the frame numbers match. Upon receiving the state change notification from the state control unit 14, the transmission processing unit 12 generates a state setting request message and transmits it via the transmission unit 13.

  When receiving the received state setting request message, the script processing unit 31S of the RNC simulator 3S sets parameters related to state transition. When receiving a state setting request response message, a signal including a frame number for executing state switching specified in the scenario is transmitted to the transmission processing unit 32. That is, based on the synchronization timing designation information included in the scenario, a signal for causing the transmission processing unit 32 to generate a synchronization correction setting message is output (script processing).

  The transmission processing unit 32 generates a state setting request response message and a state setting request message for the state setting request message, and generates a synchronization correction setting message for the state setting request response message. The transmission unit 33 transmits the state setting request response message to the UE simulator 1S, and transmits the state setting request message and the synchronization correction setting message to the base station apparatus 2. Note that the synchronization correction setting message is not transmitted from the RNC simulator 3S to the UE simulator 1S.

  When receiving the received state setting request message, the reception processing unit 21 of the base station 2 sets a parameter related to state transition, and outputs a synchronization correction signal to the state control unit 24 when receiving the received synchronization correction setting message. The transmission processing unit 22 generates a status setting request response message in response to the status setting request message. The state control unit 24 compares the input synchronization correction signal with the current frame signal, and performs state switching when the frame numbers match.

[Description of operation]
Next, a state transition test method for the base station apparatus using the test apparatus configured as described above will be described with reference to the sequence diagrams of FIGS.

  First, before performing the state transition test, the scenario 40 on the UE simulator 11S side is downloaded to the script processing unit 11S of the UE simulator 11S, and the scenario 50 on the RNC simulator 3S side is downloaded to the script processing unit 31S of the RNC simulator 31S. Now, when the state of the subscriber unit 1S is changed from A to B while a frame signal is sent to the UE simulator 1S and the base station device 2, this state change is detected by the state control unit 14 of the UE simulator 11S (FIG. 2). S1).

  When detecting a change from state A to state B in the UE simulator 1S, the state control unit 14 determines whether there is a margin of 2 or more with respect to the frame number specified in the scenario. The state change notification is output to the transmission processing unit 12. This is because two or more frames are required as a processing margin from the current frame number and the frame number specified in the scenario to the state switching timing in the base station apparatus 2. On the other hand, when there is no processing margin, the transmission processing unit 12 is notified of a state change after the frame number designated by the frame signal has passed. Since the frame number in the frame signal is circulated, it waits until the designated frame number circulates in the next cycle. The transmission processing unit 12 generates a state setting request message and transmits the message to the RNC simulator 3S via the transmission unit 13 (S2 in FIG. 2).

  In the RNC simulator 3S, the reception unit 30 receives the state setting request message, passes through the parameter setting regarding the state transition in the script processing unit 31S, the transmission processing unit 32 generates the state setting request response message, and the transmission unit 33 performs the UE simulator. Reply to 1S (S3 in FIG. 2). Moreover, the transmission part 33 transmits the state setting request message produced | generated in the same procedure based on the state setting request message to the state B received from UE simulator 1S to the base station apparatus 2 (S4 of FIG. 2).

  In the base station device 2 that has received the state setting request message, the transmission processing unit 12 generates a state setting request response message after the parameter setting for the transition to the state B in the script processing unit 11S, and the RNC simulator is transmitted via the transmission unit 13. Reply to 3S (S5 in FIG. 2). On the other hand, in the UE simulator 1S that has received the state setting request response message (S3 in FIG. 2), the script processing unit 11S generates a synchronization correction signal based on the scenario and outputs it to the state control unit 14. When the state control unit 14 receives the synchronization correction signal, the state control unit 14 compares the synchronization correction signal with the frame signal, and performs state switching when the frame numbers match.

  Next, after receiving the state setting request response message from the base station apparatus 2, the RNC simulator 3S transmits a synchronization correction setting message to the base station apparatus 2 based on the scenario (S6 in FIG. 2). As described above, the information of the synchronization correction setting message includes a frame number for executing state switching specified in the scenario, and is output from the reception processing unit 21 to the state control unit 24 as a synchronization correction signal. This frame number is appropriately selected so that switching can be made in time based on the current frame number. The state control unit 24 compares the received synchronization correction signal with the frame signal, and performs state switching when the frame numbers match.

  In the above description, the UE simulator 1S performs state switching after S3 in FIG. 2, and the base station apparatus 2 performs state switching when the frame numbers of the synchronization correction signal and the current frame signal match after S6 in FIG. Because it is implemented, it may give an unclear feeling to switching at the same time. FIG. 3 is a sequence diagram for cleaning out this fear.

  FIG. 3 shows an example in which state switching is performed with frame number = 55. Timing is assumed to flow from the upper side to the lower side in FIG. 3 along the frame number. In the UE simulator 1S, a state change is detected at the time of frame number 49. Even if there is a state setting request response from the RNC simulator 3S at the time of frame number 51, the timing is set after the timing is set at the time of frame number 52. Waits until frame number 55. On the other hand, in the base station apparatus 2, there is a state setting request from the RNC simulator 3S with the frame number 55 at the time of the frame number 54, and the state is switched at the frame number 55 points.

  In this way, the UE simulator 1S and the RNC simulator 3S can change the state at the same timing by making the frame numbers of the synchronization timings arbitrarily designated in the scenario the same. As a result, the UE simulator 1S and the base station apparatus 2 switch from the state A to the state B at the same frame number timing as shown in FIG. When both the UE simulator 1S and the base station device 2 are in the state B, data transmission / reception is performed between the RNC simulator 3S and the UE simulator 1S (S7 in FIG. 2).

The block diagram which shows the structure of the state transition test apparatus of the base station apparatus of this invention with a base station apparatus Sequence diagram of the state transition test method of this base station apparatus Specific sequence diagram of the state transition test method of this base station apparatus The block diagram which shows the structure of the state transition test apparatus of the conventional base station apparatus Sequence diagram of conventional state transition test method for base station apparatus Synchronization timing diagram for state transition evaluation

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Subscriber apparatus 2 Base station apparatus 3 Base station control apparatus
10, 20, 30 Receiver
11, 21, 31 Reception processing block
12, 22, 32 Transmission processor
13, 23, 33 Transmitter
14, 24 Status control unit
40, 50 scenarios
1S UE simulator
3S RNC simulator
11S, 31S script processing part

Claims (5)

In the state transition test device of the base station device that relays the transmission from the subscriber device and the incoming call to the subscriber device under the control of the base station control device,
The subscriber station simulator and the base station controller simulator in which a scenario, which is synchronization timing designation information to be subjected to state switching, is downloaded in advance,
The subscriber unit simulator is
When a change in state is detected, if there is a processing margin, a function to transmit a state setting request message to the base station controller simulator,
When receiving a state setting request response message from the base station controller simulator, a function to generate a synchronization correction signal based on the synchronization timing designation information included in the scenario,
Comparing the synchronization correction signal with the current frame signal and having the function of performing state switching when the frame numbers match,
The base station controller simulator is
Upon receiving the state setting request message, a function for setting a parameter relating to state transition and returning the state setting request response message to the subscriber unit simulator, and transmitting a state setting request message to the base station;
When receiving a state setting request response message from the base station, has a function of transmitting a synchronization correction setting message to the base station based on the synchronization timing designation information included in the scenario,
When the base station receives the state setting request message, the base station sets a parameter relating to state transition. When the synchronization correction setting message is received, the base station generates a synchronization correction signal, compares the synchronization correction signal with the current frame signal, and compares the frame number. A state transition test apparatus for a base station apparatus, wherein state switching is performed when the two match. The subscriber unit simulator is
A state control unit that detects the state change and notifies the state change when there is a processing margin, and performs the state switching;
A script processing unit that downloads the scenario and generates the synchronization correction signal;
The state transition test apparatus for a base station apparatus according to claim 1, further comprising a transmission control unit that generates the state setting request message when the state change is notified. The base station controller simulator is
In response to the state setting request message from the subscriber unit simulator, the state setting request response message and a state setting request message to the base station are generated, and for the state setting request response message from the base station, A transmission processing unit for generating a synchronization correction setting message;
A script processing unit that downloads the scenario and outputs a signal for causing the transmission processing unit to generate the synchronization correction setting message based on synchronization timing designation information included in the scenario; The state transition test apparatus for a base station apparatus according to claim 1 or 2, characterized in that:   In the subscriber apparatus simulator, a state setting request message is transmitted in consideration of a processing margin from the frame number of the frame signal at that time and the frame number included in the scenario to the state switching timing in the base station apparatus 4. The state transition test apparatus for a base station apparatus according to claim 1, wherein the state transition test apparatus is a base station apparatus. In the state transition test method of the base station apparatus using the state transition test apparatus according to claim 1,
Downloading in advance to the subscriber device simulator and the base station control device simulator a scenario that is specification information of the synchronization timing at which state switching is to be performed;
When detecting a change in state in the subscriber unit simulator, if there is a processing margin, sending a state setting request message to the base station control device simulator,
Receiving the state setting request message in the base station controller simulator, setting a parameter relating to state transition and returning a state setting request response message, and transmitting a state setting request message to the base station;
When receiving a status setting request response message from the base station controller simulator in the subscriber unit simulator, a synchronization correction signal is generated based on the synchronization timing designation information included in the scenario, and the synchronization correction signal and the current time The stage signal is compared when the frame signals match and the frame numbers match,
Receiving the state setting request message at the base station, setting parameters relating to state transition;
When receiving a state setting request response message from the base station in the base station controller simulator, transmitting a synchronization correction setting message to the base station based on designation information of synchronization timing included in the scenario,
The base station includes a step of generating a synchronization correction signal when the base station receives the synchronization correction setting message, comparing the synchronization correction signal with a current frame signal, and performing state switching when the frame numbers match. Station device state transition test method.

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