JP2007201944A - Wireless communication system, wireless communication terminal and communication control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that wireless communication terminals are special devices for evaluation to be connected to base station devices and wireless communication terminals and expensive and moreover, the number of usable wireless communication terminals is restricted in a connection rate test which needs to simultaneously call base stations by using a plurality of wireless communication terminals. <P>SOLUTION: A communication request message for requesting starting of communication is transmitted to the plurality of wireless communication terminals. The plurality of wireless communication terminals have storage parts which store time and communication frequencies until starting the communication. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wireless communication system, a wireless communication terminal, and a communication control method for testing a connection rate between a base station and a wireless terminal in PHS (Personal Handyphone System).

  At the time of installation or maintenance of a PHS (Personal Handyphone System) system that performs communication by time division multiplexing, various tests in a state close to actual use called field tests are performed. Among them, there is a connection rate test, which is a measure of the success rate of the connection between the wireless communication terminal and the base station device, and this test is particularly in the case of a communication system that connects in the spatial multiplexing system. This is an important test. In this connection test method, testers scattered in a plurality of places in a wide range make simultaneous calls (communication to a base station) using wireless communication terminals. Specifically, it was performed by a method in which calls were made at a predetermined time, for example, by setting the time of a clock owned by the tester in advance.

  In addition, there is a communication channel called a paging channel (hereinafter referred to as “PCH”) as a channel in which a base station simultaneously performs various notifications to wireless terminals in PHS. This channel is used when, for example, an incoming call is notified from a base station to a wireless communication terminal that has received an incoming call, and has the format shown in FIG.

For the test method described above, there is a mobile phone base station evaluation system that simultaneously controls a plurality of mobile terminals and automatically executes and determines evaluation without human intervention (Patent Document 1).
JP 2004-235726 A

  However, the mobile phone base station evaluation system disclosed in Patent Literature 1 is a special device for evaluation connected to a base station device or a wireless communication terminal, is expensive, and has a restriction on the number of wireless communication terminals that can be used. there were. In addition, since the connection is necessary, the range in which the test can be performed is limited, and it is difficult to perform the test under free conditions. In addition, when people were involved in the test, it was necessary to set the clock in advance in order to make simultaneous calls, but it was difficult to set the time accurately to the second, and the timing of transmission varies depending on the tester. It did not become simultaneous transmission in a strict sense. In addition, the mobile phone is used to notify the tester of the transmission timing. For example, if there are 10 testers, the test time must be notified to 10 people in order to notify the test start time. However, as the number of examiners increased, the time required for non-tests increased. Furthermore, when the number of wireless communication terminals that perform tests at a time increases, there is a problem that the number of testers that perform operations must also be increased. Accordingly, an object of the present invention is to provide a wireless communication system, a wireless communication terminal, and a communication control method capable of performing an efficient and inexpensive evaluation.

  A communication system according to the present invention for solving such a problem is a communication system that performs communication between a base station apparatus and a plurality of wireless communication terminals, and requests the plurality of wireless communication terminals to start communication. A communication request message transmitting unit for transmitting a communication request message, a communication request message receiving unit for receiving the communication request message, and controlling the plurality of wireless communication terminals to start communication based on the received communication request message And a communication start control means.

  In one aspect of the present invention, the communication request message receiving unit includes a storage unit that stores time until the plurality of wireless communication terminals start communication after receiving the communication request message. .

  In another aspect, the storage unit further stores the number of times the plurality of wireless communication terminals start communication after the communication request message receiving unit receives the communication request message. .

  By doing in this way, it is possible to make a call to a plurality of wireless communication terminals at a preset time, timing, or number of times without requiring human intervention.

  A wireless communication terminal according to the present invention is used in a communication system that performs communication between a base station apparatus and a plurality of wireless communication terminals, and starts communication with the plurality of wireless communication terminals transmitted from the base station. Communication request message receiving means for receiving a requested communication request message; and communication start control means for controlling the plurality of wireless communication terminals to start communication based on the received communication request message. To do.

  Further, one aspect of the wireless communication terminal according to the present invention includes a storage unit that stores time until the plurality of wireless communication terminals start communication after the communication request message receiving unit receives the communication request message. It is characterized by that.

  According to another aspect of the wireless communication terminal of the present invention, the storage unit further determines the number of times the plurality of wireless communication terminals start communication after the communication request message receiving unit receives the communication request message. It is memorized.

  Further, the communication control method according to the present invention is a communication request message for performing communication between a base station apparatus and a plurality of wireless communication terminals and transmitting a communication request message for requesting the start of communication to the plurality of wireless communication terminals. A transmission step; a communication request message reception step for receiving the communication request message; and a communication start control step for controlling the plurality of wireless communication terminals to start communication based on the received communication request message. It is characterized by.

According to the present invention, it is not necessary to accurately set the time of a tester's own time in advance when performing a test, and a special situation such as simultaneous call from a plurality of terminals can be easily created. Field test can be performed at low cost because no tester is required.

  Hereinafter, a wireless communication system, a wireless communication terminal, and a communication control method according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram showing the configuration of the embodiment. A wireless communication system according to an embodiment of the present invention includes a base station device 1, a plurality of wireless communication terminals 2 and a network 4, and a control device 3. The base station apparatus 1 usually transmits communication data to the network 4 so that the wireless communication terminal 2 communicates with other wireless communication terminals 4 and fixed telephones through the network 4, or conversely, the other wireless communication terminals 2 and Communication data transmitted from a fixed telephone or the like is transmitted to the wireless communication terminal 2. The control device 3 is a personal computer or the like, and instructs various instructions to the base station device 1 when performing a field test, or inputs an operation timing of the base station device 1 for performing the test. For example, when a plurality of wireless communication terminals 2 make a call to the base station apparatus 1 at the same time, in a connection rate test for testing how much of the wireless communication terminals 2 can be connected, 3, how many radio communication terminals 2 make a call and how many times are input, and test control data for instructing test contents is transmitted from the control device 3 to the base station device 1. Based on the test control data, the base station apparatus 1 transmits control data for controlling the radio communication terminal 2 for the test to the radio communication terminal 2, and the radio communication terminal 2 performs a test operation according to the control data.

  FIG. 2 is a configuration diagram of the base station apparatus 1. The base station apparatus 1 includes a transmission / reception unit 11, a modulation / demodulation unit 12, a network I / F unit 16, a signal generation unit 17, a control unit 14, a storage unit 13, and a PC I / F unit 13. The transmission / reception unit 11 includes an antenna, receives a signal from the wireless communication terminal 2, and transmits data transmitted from the network 4 to the wireless communication terminal 2. The modem unit 12 extracts data from the signal received by the transmission / reception unit 11 and modulates the data received from the network 4 so that it can be transmitted as a radio signal. The storage unit 15 stores a program for operating the base station apparatus 1 and various types of information for controlling the base station apparatus 1. The control unit 14 controls the entire base station apparatus 1. The network I / F unit 16 is an interface for connecting the network 4 and the base station apparatus 1. The signal generator 17 generates data for transmitting pseudo data when performing a field test. The PC I / F unit 13 is an interface for connecting the base station apparatus 1 and a control personal computer for various tests. When the field test is performed, various instructions are instructed to the base station apparatus 1 and the operation timing of the base station apparatus 1 for performing the test is input. For example, in a connection rate test for testing how much of the wireless communication terminals 2 can be connected when a plurality of wireless communication terminals 2 make calls to the base station apparatus 1 at the same time, a personal computer Is used to input data in which an instruction to perform a connection rate test is embedded. The control unit 14 receives data in which an instruction to perform the connection rate test is embedded through the PC I / F unit 13 and converts the data into data called “call request”. The data is sent to the storage unit 13 while being sent to the modem unit 12. The modem 12 embeds data called “call request” in the control channel (PCH) as shown in FIG. 4 and transmits the data to the wireless communication terminal 2 from the transceiver 11. In FIG. 4, “call request” is transmitted by setting “call service type” and “extended call service type” to 05 (Hex) and 0E (Hex).

  FIG. 3 is a configuration diagram of the wireless communication terminal 2. The wireless communication terminal 2 includes a transmission / reception unit 21, a modulation / demodulation unit 22, a voice input / output unit 23, a control unit 24, a storage unit 25, a display unit 26, and an operation unit 27. The control unit 24 controls each unit of the wireless communication terminal 2 and executes processing related to telephone calls and data communication. The transmission / reception unit 21 includes an antenna, receives a signal from the base station apparatus 1, and transmits voice data and packet data to the base station apparatus 1. The modulation / demodulation unit 22 extracts data from the signal received by the transmission / reception unit 21 or modulates audio data and packet data so that they can be transmitted as a radio signal. The voice input / output unit 23 is a microphone and a speaker. The display unit 26 is, for example, an LCD display device, and displays information related to operation of the wireless communication terminal 2 and communication data such as mail. The operation unit 27 is an operation button for inputting various information for operating the wireless communication terminal 27. The storage unit 25 stores a program related to processing performed by the control unit, and stores test conditions for performing a field test. The test condition is, for example, information such as when to make a call when the “call request” is received from the base station apparatus 1, how many times the call is made, and what is the call interval. This test condition may be set in advance by the tester using the operation unit 27 in advance, or the condition input from the control device 3 is sent from the base station device 1 to the wireless communication terminal 2 as an SMS (Short Message Service) service. You may notify using.

  Further, the modem unit 22 also has a function of analyzing PCH transmitted from the base station apparatus 1. That is, the PCH data as shown in FIG. 4 is extracted from the signal received by the transmitting / receiving unit 21. The control unit 24 analyzes the content of the received PCH, and when the “calling service type” and the “extended calling service type” are 05 (Hex) and 0E (Hex), the control unit 24 makes a call request. The wireless communication terminal 2 is controlled to activate the calling operation.

  Here, a call sequence which is one embodiment of the present invention will be described with reference to FIG. When the tester inputs the start of the test to the control device 3, the base station device 1 (CS) makes a call request to the radio communication terminal (PS). This call origination request is made by transmitting a “call request” using the control channel (PCH) (S1). Upon receiving the transmission request, the PS waits for a predetermined time stored in the storage unit 25, and transmits a link channel establishment request to the CS at a predetermined time (S2). Since the “call request” is transmitted from one CS to a plurality of PSs, the plurality of PSs initiate a call at a call start time stored in the storage unit 25, respectively. If a plurality of stored call times are the same, a call is made to the CS at the same time, and a connection rate test can be performed. After that, the CS performs link channel allocation if there is a usable channel (S3). Thereafter, after exchanging synchronization bursts, a connection is established based on a normal call sequence.

  As described above, according to the wireless communication system, the wireless communication terminal, and the communication control method of the present invention, it is not necessary to accurately set the clock owned by the tester in advance when performing a test, and simultaneous transmission from a plurality of terminals is possible. Special situations such as calls can be created easily. Field test can be performed at low cost because no tester is required.

It is a block diagram which shows the structure of one Embodiment of this invention. It is a figure which shows the base station apparatus of one Embodiment of this invention. It is a figure which shows the radio | wireless communication terminal of one Embodiment of this invention. 4 is a format of a control channel including data for prompting a call in an embodiment of the present invention. It is a sequence diagram in one embodiment of the present invention. 4 is a format of a control channel including data for prompting disconnection in an embodiment of the present invention. It is the format of the conventional control channel.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Base station apparatus, 2 Wireless communication terminal, 3 Control apparatus, 4 Network, 1121 Transmission / reception part, 1222 Modulation / demodulation part, 13 PC I / F part, 1424 Control part, 1525 Storage part, 16 Network I / F part , 17 Signal generation unit, 2118 Network interface unit, 19 Control unit, 23 Voice input / output unit, 26 Display unit, 27 Operation unit

Claims (7)

In a communication system that performs communication between a base station device and a plurality of wireless communication terminals,
Communication request message transmitting means for transmitting a communication request message for requesting the start of communication to the plurality of wireless communication terminals;
Communication request message receiving means for receiving the communication request message;
Communication start control means for controlling the wireless communication terminal to start communication based on the received communication request message;
A wireless communication system comprising: 2. The wireless communication according to claim 1, further comprising a storage unit that stores time until the plurality of wireless communication terminals start communication after the communication request message receiving unit receives the communication request message. system. 3. The wireless communication according to claim 2, wherein the storage unit further stores the number of times the plurality of wireless communication terminals start communication after the communication request message receiving unit receives the communication request message. system. In a wireless communication terminal used in a communication system that performs communication between a base station apparatus and a plurality of wireless communication terminals,
A communication request message receiving means for receiving a communication request message transmitted from the base station and requesting the start of communication to the plurality of wireless communication terminals;
Communication start control means for controlling the plurality of wireless communication terminals to start communication based on the received communication request message;
A wireless communication terminal comprising: 5. The wireless communication according to claim 4, further comprising a storage unit that stores time until the plurality of wireless communication terminals start communication after the communication request message receiving unit receives the communication request message. Terminal. The wireless communication according to claim 5, wherein the storage unit further stores the number of times the plurality of wireless communication terminals start communication after the communication request message receiving unit receives the communication request message. Terminal. In a communication control method for performing communication between a base station device and a plurality of wireless communication terminals,
A communication request message transmission step for transmitting a communication request message for requesting the start of communication to the plurality of wireless communication terminals;
A communication request message receiving step for receiving the communication request message;
A communication start control step for controlling the plurality of wireless communication terminals to start communication based on the received communication request message;
The communication control method characterized by including.

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