JP2006180399A - Method for rewriting program incorporated in wireless terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To rewrite a program incorporated in a wireless terminal without affecting a user of the wireless terminal in ordinary use and without requesting much time to a maintenance person. <P>SOLUTION: Data communication is established between a PC 3 and a wireless terminal 4, and program data are transmitted from the PC 3 to rewrite a program of the wireless terminal 4. If the wireless terminal 4 requests ordinary communication in the middle of program data transmission/reception, the program data transmission/reception is kept temporarily waiting and after the end of the ordinary communication, transmission/reception is restarted from non-transmitted/non-received program data. If transmission/reception of program data is requested during the ordinary communication of the wireless terminal, the transmission/reception of the program data is kept waiting and after the end of the ordinary communication of the wireless terminal 4, the transmission/reception of the program data is started. The program can be rewritten for each wireless terminal. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wireless terminal built-in program rewriting method, and more particularly to a wireless terminal built-in program rewriting method that can efficiently rewrite a wireless terminal built-in program without disturbing the use of a user.

In order to upgrade a program installed in a wireless terminal such as a mobile phone, it is necessary to rewrite the program. Rewriting of the program incorporated in the wireless terminal is performed using wired communication or wireless communication. In the case of rewriting using wired communication, rewriting is performed by collecting the wireless terminal, connecting it to a program rewriting personal computer (PC) with a cable, and transferring new program data from the PC. In the case of rewriting using wireless communication, similarly, the wireless terminal is collected or not, and the program data is wirelessly transmitted to the wireless terminal for rewriting.
JP 2001-274721 A

  However, in the case of rewriting using wired communication, the maintenance person must go around each user's house and collect the wireless terminal. Therefore, the maintenance person must take a lot of time for the rewriting work, and there is a problem that the user cannot use the wireless terminal during the rewriting.

  In rewriting using wireless communication, when a wireless terminal is collected and rewritten, there is a problem similar to the above. In addition, when rewriting without collecting the wireless terminal, the maintenance person must notify all the users to that effect. Furthermore, the user who has received the rewriting notification must set the wireless terminal to a state different from the normal use state during the rewriting work, and during that time, there is a problem that the wireless terminal cannot be used at all. is there. Here, the normal use state includes a state in which normal communication is performed and a waiting state in which normal communication can be performed.

  An object of the present invention is to provide a wireless terminal capable of rewriting a program incorporated in a wireless terminal without affecting the normal use of the user of the wireless terminal and without requiring much time from a maintenance person. It is to provide a method for rewriting an embedded program.

  In order to solve the above problems, the present invention provides a wireless terminal built-in program rewriting method for rewriting a program embedded in a wireless terminal by transmitting and receiving program data, and prioritizing normal communication of the wireless terminal over transmission and reception of program data. This is the first feature.

  In addition, the present invention allows a wireless terminal to perform normal communication by waiting for transmission / reception of program data when normal communication of the wireless terminal is requested during transmission / reception of program data, and is not transmitted / received after completion of normal communication of the wireless terminal. The second feature is that transmission / reception is resumed from the program data.

  Further, according to the third aspect of the present invention, when transmission / reception of program data is requested during normal communication of the wireless terminal, the transmission / reception of the program data is waited, and transmission / reception of the program data is started after the normal communication of the wireless terminal ends. It has the characteristics of

  Here, transmission / reception of program data can be performed for each wireless terminal.

  According to the present invention, it is possible to rewrite a program incorporated in a wireless terminal without affecting the normal use of the user of the wireless terminal and without requiring much time from a maintenance person.

  In addition, during the data communication for transmitting and receiving program data, if normal communication of the wireless terminal is requested, the data communication is interrupted and the transmission / reception is resumed from the untransmitted program data after the normal communication is completed. Since the program data is not retransmitted, the program can be rewritten efficiently.

  The present invention will be described below with reference to the drawings. In this specification, communication (for example, telephone call) as an original function of a wireless terminal in a wireless communication system is defined as normal communication, and communication for program data transmission / reception is defined as data communication.

  FIG. 1 is a block diagram showing a schematic configuration of a radio communication system to which the present invention is applied. The wireless communication system of this example includes a main apparatus 1, a wireless base station 2, a program rewriting personal computer (hereinafter simply referred to as PC) 3, and a wireless terminal (hereinafter simply referred to as terminal) 4. In FIG. 1, one radio base station 2 and one terminal 4 are shown, but there are usually a plurality of them. The main device 1 can send and receive arbitrary commands and controls or mediates normal communication or data communication.

  FIG. 2 is a functional block diagram illustrating an example of the main device 1, which includes a control unit 1-1, a maintenance unit 1-2, and a terminal I / F unit 1-3. The control unit 1-1 controls normal communication or data communication (including exchange control). The maintenance unit 1-2 is connected to the PC 3 and performs data communication. The terminal I / F unit 1-3 accommodates the radio base station 2 and performs normal communication or data communication with the terminal 4 via the radio base station 2. The radio base station 2 mediates communication between the main apparatus 1 and the terminal 4. The PC 3 is connected to the maintenance unit 1-2 of the main apparatus 1 to perform data communication, and transmits / receives an instruction to rewrite a program incorporated in the terminal 4, management data, program data, and the like. The terminal 4 controls normal communication and data communication and terminates.

  FIG. 3 is a functional block diagram showing an example of the terminal 4, and includes a control unit 4-1, a maintenance unit 4-2, a main device I / F unit 4-3, a RAM 4-4, and a ROM 4-5. The control unit 4-1 controls normal communication or data communication (including exchange control). When receiving a program rewrite instruction from the control unit 4-1, the maintenance unit 4-2 accesses the RAM 4-4 and the ROM 4-5 to perform rewriting. The main apparatus I / F unit 4-3 is connected to the main apparatus 1 via the radio base station 2 to perform communication. The RAM 4-4 temporarily stores the program data received by the terminal 4, and the ROM 4-5 is a non-volatile memory, and stores the program data received by the terminal 4. The terminal 4 operates according to a program stored in the ROM 4-5.

Next, the state and data of each unit in the above embodiment, and messages in data communication will be described. First, each part of the system holds the following state and data.
(1) The main device 1 has the following state for each terminal.
(sts1-1) Normal state (initial state)
(sts1-2) Program rewrite wait state
(2) The terminal holds the following data.
(dat2-1) Received sequence number of program data The terminal has the following state.
(sts2-1) Program rewrite wait state (initial state)
(sts2-2) Program receiving status
(sts2-3) Program rewriting status
(3) The PC 3 holds the following data.
(dat3-1) Terminal number of the terminal
(dat3-2) Terminal program data

In data communication, the following messages (excluding (m2) incoming data) are sent and received. Note that (m2) incoming data is transmitted and received as normal communication. The following description after “:” indicates a data element included in each message.
(m1) Program rewrite preparation request: (elm1-1) Terminal number
(m2) Data arrival: (elm2-1) Terminal rewriting
(m3) Data write request: (elm3-1) sequence number and (elm3-2) program data
(m4) Data write response: (elm4-1) Received sequence number
(m5) Program transmission end request: No data element
(m6) Program transmission end response: No data element
(m7) Program transmission interruption notification: (elm7-1) Terminal number
(m8) Program transmission resume notification: (elm8-1) Terminal number

  FIG. 4 is a flowchart showing the entire program rewriting operation. After data communication is established between the main apparatus 1 and the PC 3, a program rewrite preparation request (m1) is transmitted from the PC 3 to the main apparatus 1 (S3-1). At this time, the terminal number (dat3-1) of the terminal is set to the terminal number (elm1-1) of the program rewriting preparation request (m1). Here, it is assumed that the terminal number of the terminal 4 is set to the terminal number (elm1-1).

  When the main device 1 receives the program rewrite preparation request (m1) from the PC 3, the main device 1 confirms the communication state of the terminal 4, and if this is not the normal communication state, the main device 1 receives data that is one of the normal communications to the terminal 4. The terminal rewriting (elm2-1) is added to (m2) and transmitted (S1-1).

  When the terminal 4 receives the data incoming (m2) and the terminal rewriting (elm2-1) is added thereto, the terminal 4 establishes data communication with the main apparatus 1 and receives the rewritten data received sequence number (dat2). -1) is set to the received sequence number (elm4-1) of the data write response (m4) and transmitted to the PC 3 (S2-1).

  When the PC 3 receives the data write response (m4) from the terminal 4, the PC 3 receives the sequence number (m3) of the data write request (m3) based on the received sequence number (elm4-1) and the program data (dat3-2) of the terminal 4. elm3-1) and program data (elm3-2) are set and transmitted to the terminal 4 (S3-2).

Upon receipt of the data write request (m3), the terminal 4 stores the program data (elm3-2) in the RAM 4-4, and the sequence number (elm3-1) is the received sequence number (elm4) of the data write response (m4). -1) and transmit to PC3 (S2-2). Also, the program rewrite wait state (sts2-1) is shifted to the program receiving state (sts2-2).
When transmission / reception of the data write request (m3) and data write response (m4) ((S2-2), (S3-2)) is repeated and the entire embedded program is transmitted to the terminal 4, the PC 3 has already been received. Based on the sequence number (elm4-1) and the program data (dat3-2), the fact is recognized and a program transmission end request (m5) is transmitted to the terminal 4 (S3-3).

  When the terminal 4 receives the program transmission end request (m5), the terminal 4 transmits a program transmission end response (m6) to the PC 3, and transitions the program receiving state (sts2-2) to the program rewriting state (sts2-3). (S2-3).

  After receiving the program transmission end response (m6) from the terminal 4 and transmitting it to the PC 3, the main apparatus 1 disconnects data communication with the terminal 4 (S1-2).

If the terminal 4 is in the program rewriting state (sts2-3) when the data communication is cut off, the terminal 4 transfers the program data stored in the RAM 4-4 to the ROM 4-5 and loads the program in the ROM 4-5. rewrite. Once the program has been rewritten,
Transition from the program rewriting state (sts2-3) to the program rewriting wait state (sts2-1).

  Further, the terminal 4 is restarted immediately, and the terminal 4 is operated with a new program. Note that the transfer of program data from the RAM 4-4 to the ROM 4-5 is performed immediately when the entire program data is received, the user is asked to make a determination, and the possibility of using the terminal is low. Or at a timing (eg, at night).

  FIG. 5 shows a case where normal communication is requested at the terminal 4 while the data write request (m3) and the data write response (m4) are being transmitted and received ((S2-2), (S3-2)). It is a flowchart which shows this operation | movement.

  If an operation for establishing normal communication is performed in the terminal 4 while the data write request (m3) and the data write response (m4) are being transmitted and received ((S2-2), (S3-2)) (S2 -5) The main apparatus 1 recognizes the request for establishment of normal communication, disconnects the data communication, and changes the normal state (sts1-1) to the program rewrite wait state (sts1-2). Further, after disconnecting data communication, the state is similarly changed when a request for establishment of normal communication is received from the terminal 4 within a certain time, and when the request is not received within a certain time, the data communication is reestablished. . Subsequently, after transmitting a program transmission interruption notice (m7) to the PC 3, normal communication is established (S1-3).

  When receiving the program transmission interruption notification (m7), the PC 3 waits until the terminal 4 of the terminal number (elm7-1) included therein receives the program transmission resumption notification (m8) (S3-4).

After that, when the normal communication is disconnected, the main device 1 recognizes that, transmits a program transmission resumption notification (m8) to the PC 3, and sets the program rewrite waiting state (sts1-2) to the normal state (sts1-1). (S1-4).
Upon receiving the program transmission resumption notification (m8) from the main device 1, the PC 3 sets the terminal number (elm8-1) contained therein to the terminal number (elm1-1) of the program rewriting preparation request (m1) and sets the terminal 4 (S3-5).

  When the main device 1 receives the program rewriting preparation request (m1) from the PC 3, the data incoming (m2) is transmitted to the terminal 4 (S1-1) as in FIG. Data communication is established between them (S2-1). After that, as in (S2-2) in FIG. 4, the terminal 4 sets the received sequence number (dat2-1) of the rewrite data to the received sequence number (elm4-1) of the data write response (m4). To PC3. The subsequent operation is the same as (S3-3) and subsequent steps in FIG.

  FIG. 6 is a flowchart showing an operation when data communication for program rewriting is established during normal communication of the terminal 4.

  After the data communication is established between the main device 1 and the PC 3, when a program rewrite preparation request (m1) is transmitted from the PC 3 to the main device 1 (S3-1), the main device 1 includes the terminal number included therein. (elm1-1) recognizes that the terminal 4 is in normal communication, changes the normal use state (sts1-1) to the program rewrite wait state (sts1-2), and notifies the PC 3 of the program transmission interruption (m7) Is transmitted (S1-5).

  When receiving the program transmission interruption notification (m7), the PC 3 waits until the terminal 4 of the terminal number (elm7-1) included therein receives the program transmission resumption notification (m8) (S3-4).

After that, when the normal communication is disconnected, the main device 1 recognizes that, transmits a program transmission resumption notification (m8) to the PC 3, and sets the program rewrite waiting state (sts1-2) to the normal use state (sts1-1). ) (S1-4).
Upon receiving the program transmission resumption notification (m8) from the main device 1, the PC 3 sets the terminal number (elm8-1) contained therein to the terminal number (elm1-1) of the program rewriting preparation request (m1) and sets the terminal 4 (S3-5).

  When the main device 1 receives the program rewriting preparation request (m1) from the PC 3, the data incoming (m2) is transmitted to the terminal 4 (S1-1) as in FIG. Data communication is established between them (S2-1). The subsequent operation is the same as (S2-2) and subsequent steps in FIG.

  Although the embodiment has been described above, the present invention is not limited to this and can be variously modified. For example, if a program or rewrite start date / time, program version information, and the like are stored in a PC or wireless terminal, management of each wireless terminal is facilitated.

It is a block diagram which shows schematic structure of the radio | wireless communications system to which this invention is applied. It is a functional block diagram which shows an example of a main device. It is a functional block diagram which shows an example of a radio | wireless terminal. It is a flowchart which shows the whole program rewriting operation | movement. It is a flowchart which shows operation | movement when normal communication is requested | required in the middle of program rewriting. It is a flowchart which shows operation | movement when the data communication for program rewriting is established during normal communication.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Main apparatus, 1-1, 4-1 ... Control part, 1-2, 4-2 ... Maintenance part, 1-3 ... Terminal I / F part, 2 ... Wireless Base station, 3 ... PC, 4 ... wireless terminal, 4-3 ... main device I / F section, 4-4 ... RAM, 4-5 ... ROM

Claims (4)

In a wireless terminal built-in program rewriting method for rewriting a program embedded in a wireless terminal by transmitting and receiving program data,
A wireless terminal built-in program rewriting method, wherein priority is given to normal communication of a wireless terminal over transmission / reception of program data. When normal communication of the wireless terminal is requested during transmission / reception of program data, the wireless terminal is made to perform normal communication by waiting for transmission / reception of program data, and transmission / reception is performed from untransmitted program data after the normal communication of the wireless terminal is completed. The wireless terminal embedded program rewriting method according to claim 1, wherein the wireless terminal embedded program rewriting method is resumed. The transmission / reception of program data is awaited when transmission / reception of program data is requested during normal communication of the wireless terminal, and transmission / reception of program data is started after completion of normal communication of the wireless terminal. Wireless terminal embedded program rewriting method. 2. The wireless terminal built-in program rewriting method according to claim 1, wherein transmission / reception of program data can be performed by designating each wireless terminal.

Images