1. A method of operating a fuel cell system which is controlled by an electronic device, the method comprising:
transmitting a bit stream comprising a bit string which indicates identification information of the fuel cell system and a bit string which indicates status information of the fuel cell system to the electronic device through a serial communication line;
receiving a bit stream comprising a bit string which indicates control information of the fuel cell system from the electronic device through the serial communication line;
obtaining the control information of the fuel cell system from the received bit stream; and
controlling power production of a fuel cell of the fuel cell system by controlling operations of peripheral devices of the fuel cell system based on the obtained control information of the fuel cell system.
2. The method of claim 1, further comprising:
generating the bit stream, which is transmitted to the electronic device, by generating the bit string which indicates the status information by encoding the status information of the fuel cell system and then adding the bit string which indicates the status information after the bit string which indicates the identification information.
3. The method of claim 2, wherein the generating the bit stream comprises encoding the status information of the fuel cell system by combining binary codes corresponding to status information of components of the fuel cell system based on a predetermined order.
4. The method of claim 3, wherein the generating the bit stream further comprises converting the status information of the components of the fuel cell system into binary values, and determining the converted binary values as the binary codes corresponding to status information.
5. The method of claim 3, wherein
the generating the bit stream further comprises extracting a plurality of binary codes, which are mapped into a plurality of sections, from a predetermined table, and determining the extracted binary codes as the binary codes corresponding to status information,
wherein the sections correspond to the status information of a component of the fuel cell system, and
the sections, which are obtained by dividing a total range of a changeable status of the component of the fuel cell system, and the binary codes are mapped to each other in one-to-one correspondence in the predetermined table.
6. The method of claim 2, wherein the generating the bit stream comprises generating the bit stream by adding a start bit string having a predetermined pattern, which indicates the start of transmission of the identification information of the fuel cell system, before the bit string which indicates the identification information.
7. The method of claim 1, further comprising:
transmitting a bit stream including a bit string which indicates a portion of the identification information of the fuel cell system and a bit string which indicates a portion of the status information of the fuel cell system.
8. A fuel cell system which is controlled by an electronic device, the fuel cell system comprising:
a fuel cell which produces power using a fuel;
a balance of plants which supplies the fuel to the fuel cell;
a controller which generates a bit string which indicates status information of the fuel cell system by encoding the status information, and controls a power production of the fuel cell by controlling an operation of the balance of plants based on control information of the fuel cell system; and
an interface which transmits a bit stream comprising the generated bit string to the electronic device through a serial communication line, and receives a bit stream comprising a bit string which indicates the control information of the fuel cell system from the electronic device through the serial communication line.
9. The fuel cell system of claim 8, wherein the controller generates the bit stream, which is transmitted to the electronic device, by adding the bit string which indicates the status information of the fuel cell system after the bit string which indicates identification information of the fuel cell system.
10. The fuel cell system of claim 8, wherein the interface receives power from the electronic device or supplies power to the electronic device, through a power line, which is different from the serial communication line.
11. The fuel cell system of claim 8, wherein the interface receives power from the electronic device or supplies power to the electronic device, through the serial communication line.
12. The fuel cell system of claim 11, wherein the interface supplies power to the electronic device by transmitting successive bits corresponding to maximum transmissible voltage values of a signal to the electronic device after the transmitted bit stream.
13. A method of controlling a fuel cell system using an electronic device, the method comprising:
receiving a bit stream including a bit string which indicates identification information of the fuel cell system and a bit string which indicates status information of the fuel cell system from the fuel cell system through a serial communication line;
obtaining the identification information of the fuel cell system and the status information of the fuel cell system from the received bit stream;
generating control information of the fuel cell system based on the obtained identification information of the fuel cell system and the obtained status information of the fuel cell system;
generating a bit stream including a bit string which indicates the control information of the fuel cell system; and
transmitting the generated bit stream to the fuel cell system through the serial communication line.
14. The method of claim 13, wherein the obtaining the identification information of the fuel cell system and the status information of the fuel cell system comprises obtaining the status information of the fuel cell system by decoding the bit string which indicates the status information of the fuel cell system, which is received after the bit string which indicates the identification information of the fuel cell system.
15. The method of claim 14, wherein the obtaining the identification information of the fuel cell system and the status information of the fuel cell system further comprises extracting each of binary codes corresponding to status information of components of the fuel cell system based on a predetermined order from the bit string which indicates the status information of the fuel cell system, and decoding the bit string which indicates the status information of the fuel cell system by determining status information corresponding to each of the binary codes.
16. The method of claim 15, wherein the obtaining the identification information of the fuel cell system and the status information of the fuel cell system further comprises determining a binary value of each of the extracted binary codes as the status information of each of the components of the fuel cell system.
17. The method of claim 15, wherein the obtaining the identification information of the fuel cell system and the status information of the fuel cell system further comprises:
detecting a section mapped to each of the extracted binary codes from a table, in which a plurality of sections, which are obtained by dividing a total range of a changeable status of each of the components of the fuel cell system, and a plurality of binary codes are mapped to each other in one-to-one correspondence; and
determining a value which represents the detected section as the status information of each of the components of the fuel cell system.
18. The method of claim 14, wherein the obtaining the identification information of the fuel cell system and the status information of the fuel cell system further comprises obtaining the identification information by extracting a bit string having a predetermined length, which is first received from the fuel cell system, as the identification information, and obtaining the status information by decoding a bit string that is received subsequent to the bit string having the predetermined length.
19. The method of claim 14, wherein the obtaining the identification information of the fuel cell system and the status information of the fuel cell system further comprises:
monitoring signals received from the fuel cell system;
obtaining the identification information by extracting a bit string having a predetermined length, which is received after a start bit string of a predetermined pattern, as the identification information when the start bit string of the predetermined pattern, which indicates the start of transmission of information of the fuel cell system, is detected during the monitoring; and
obtaining the status information by decoding a bit string which is received after the bit string having the predetermined length.
20. The method of claim 13, further comprising:
transmitting a bit stream including a bit string which indicates a portion of the identification information of the fuel cell system and a bit string which indicates a portion of the control information of the fuel cell system.
21. The method of claim 13, wherein the generating the control information comprises:
determining specifications of the fuel cell system from the identification information of the fuel cell system; and
generating the control information of the fuel cell system based on the specifications of the fuel cell system and the status information of the fuel cell system.
22. The method of claim 13, wherein the generating the control information of the fuel cell system comprises generating the control information of the fuel cell system based on the status information of the fuel cell system using an operational algorithm of the fuel cell system, which corresponds to the identification information of the fuel cell system.
23. The method of claim 22, wherein the generating the control information of the fuel cell system further comprises:
determining a type of a fuel cell of the fuel cell system from the identification information of the fuel cell system; and
generating the control information of the fuel cell system using an operational algorithm corresponding to the type of the fuel cell, which is selected from among various operational algorithms corresponding to various types of the fuel cell based on the type of the fuel cell.
24. The method of claim 13, wherein the generating the control information of the fuel cell system comprises:
determining an environment of the fuel cell system based on environment information of a region, at which the electronic device is located; and
generating the control information of the fuel cell system using an algorithm corresponding to the environment of the fuel cell system, which is selected from among various operational algorithms corresponding to various environments based on the determined environment of the fuel cell system.
25. The method of claim 13, wherein the generating the control information of the fuel cell system comprises:
selecting one of a plurality of operational modes comprising a start-up mode for starting up a fuel cell of the fuel cell system and a normal mode in which power is supplied from the fuel cell system to the electronic device, based on the status information of the fuel cell system; and
generating the control information of the fuel cell system based on a selected operational mode.
26. The method of claim 13, wherein the generating the control information of the fuel cell system comprises:
calculating a value which indicates additional status information of the fuel cell system from a value which indicates status information of a component of the fuel cell system; and
generating the control information of the fuel cell system based on the status information of the component and the additional status information.
27. An electronic device for controlling a fuel cell system, the electronic device comprising:
a processor which generates control information of the fuel cell system based on status information of the fuel cell system and generates a bit string which indicates the control information by encoding the control information; and
an interface which receives a bit stream comprising a bit string which indicates the status information of the fuel cell system from the fuel cell system through a serial communication line and transmits a bit stream comprising the generated bit string to the fuel cell system through the serial communication line.
28. The electronic device of claim 27, wherein
the received bit stream further comprises a bit string which indicates identification information of the fuel cell system, and
the processor obtains the identification information and the status information from the received bit stream and generates the control information of the fuel cell system based on the obtained identification information and the obtained status information.
29. The electronic device of claim 27, wherein the interface receives power from the fuel cell system or supplies power to the fuel cell system, through a power line, which is different from the serial communication line.
30. The electronic device of claim 29, wherein the interface receives power from the fuel cell system or supplies power to the fuel cell system, through the serial communication line.
31. The electronic device of claim 29, wherein the interface supplies power to the fuel cell system by transmitting successive bits corresponding to maximum transmissible voltage values of a signal to the fuel cell system after the transmitted bit stream.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method of communicating with a mobile station using a serving base station and a target base station comprising:
establishing a new link between the target base station and the mobile station before releasing an existing link between the mobile station and the serving base station while having only the existing link in an active set for the mobile station before releasing the existing link.
2. The method of claim 1, comprising:
(A) determining if a handoff is desired between the serving base station and the target base station;
(B) initiating the new link between the mobile station and the target base station;
(C) transmitting an active set update message to the mobile station using the existing link between the serving base station and the mobile station;
(D) achieving uplink synchronization for the target base station to communicate with the mobile station;
(E) receiving at least one signal over the new link indicating that the mobile station has processed the transmitted active set update message; and
(F) releasing the existing link responsive to the at least one signal of step (E).
3. The method of claim 1, comprising communicating between the mobile station and the target base station using the new link only after completing step (F).
4. The method of claim 2, wherein step (A) comprises receiving a handoff request from the mobile station and comprising selecting the target base station based at least in part on the received request from the mobile station.
5. The method of claim 2, wherein step (B) comprises providing the target base station with physical layer control information comprising at least a radio link setup request, a packet data convergence protocol and a radio link control.
6. The method of claim 5, wherein step (D) comprises initiating the uplink synchronization responsive to the physical layer control information.
7. The method of claim 2, comprising
providing physical layer control information for downlink synchronization between the target base station and the mobile station from the target base station to the serving base station; and
transmitting the provided physical layer control information from the serving base station to the mobile station.
8. The method of claim 7, comprising transmitting the provided physical layer control information to the mobile station prior to completing step (D).
9. The method of claim 2, comprising
receiving a plurality of measurement reports from the mobile station over the existing link; and
predicting the desired handoff based on the received measurement reports.
10. The method of claim 9, comprising predicting the target base station.
11. The method of claim 2, comprising receiving at least one signal from the mobile station over the existing link that is indicative of a desire of the mobile station for a handoff and performing step (A) responsive to the received at least one signal.
12. The method of claim 2, comprising buffering bearer traffic between the mobile station and the serving base station while performing steps (A) through (F).
13. The method of claim 2, comprising achieving downlink synchronization between the mobile station and the target base station prior to performing step (F).
14. The method of claim 13, comprising receiving downlink physical layer control information over the existing link, the downlink physical layer control information originating from the target base station for downlink synchronization between the target base station and the mobile station.
15. The method of claim 2, comprising
determining a characteristic of the existing link;
determining the characteristic of the new link;
determining a difference between the determined characteristics; and
performing step (A) if the determined difference exceeds a threshold that is selected to minimize replacement hysteresis.
16. A method of communicating with a serving base station and a target base station using a mobile station, comprising:
establishing a new link between the target base station and the mobile station before releasing an existing link between the mobile station and the serving base station while maintaining only the existing link in an active set for the mobile station before releasing the existing link.
17. The method of claim 16, comprising:
(A) receiving an active set update message over the existing link between the mobile station and the serving base station, the active set update message indicating a handoff from the serving base station to the target base station;
(B) receiving physical layer control information over the existing link for downlink synchronization between the mobile station and the target base station over the new link;
(C) achieving downlink synchronization with the target base station responsive to the received physical layer control information of step (B);
(D) transmitting an active set update confirmation message through the new link; and
(E) terminating communication over the existing link after completing step (D).
18. The method of claim 17, comprising providing at least one measurement report from the mobile station over the existing link prior to performing step (A).
19. The method of claim 17, comprising buffering all bearer traffic signals at the mobile station while performing steps (A) through (E).
20. The method of claim 16, comprising providing at least one signal indicating a desire for the mobile station to handoff from the existing base station using the existing link.