1. A serially concatenated convolutional decoder of a mobile communication system, comprising:
a demultiplexer and zero inserter for inserting zero on the position of a substituted code when the substituted code is inputted and outputting it while outputting received code bits, and outputting the substituted code to the multiplexer;
an inner Soft In Soft Out (SISO) input unit for generating a decode value by adapting the outputted code bit and a probability value feed-backed from an output terminal to a maximum probability decode algorithm;
a deinterleaver for deinterleaving the generated decode value;
a multiplexer for inserting the substituted code into the decode value outputted from the deinterleaver and outputting it; and
an outer SISO output unit for generating the final decode value by adapting the decode value having the inserted substituted code and probability value of the zero to the maximum probability decode algorithm.
2. The serially concatenated convolutional decoder of the mobile communication system according to claim 1, wherein the serially concatenated convolutional decoder of the mobile communication system further comprises a puncturer and interleaver for improving the decoding performance by puncturing the final decode value outputted from the outer Soft In Soft Out (SISO) output unit with the puncturing pattern, interleaving it, and providing it as the probability value of the inner SISO input unit.
3. A dual mode concatenated convolutional encoder of a mobile communication system, comprising:
a first Recursive Systematic Convolutional (RSC) encoder for coding inputted data sequence with 1n code rate;
a puncturer for puncturing the code inputted from the first RSC encoder with a certain puncturing pattern;
an interleaver for dispersing errors clustered on one code by relocating position of the punctured code;
a second RSC encoder for outputting new two code values by coding the error dispersed code with 1n code rate;
a delayer for delaying the code punctured and thrown away from the puncturer for a certain time; and
a substituent for substituting the punctured code delayed on the delayer for the code on the punctured position when it is inputted among the codes outputted from the second RSC encoder, and outputting it.
4. The dual mode concatenated convolutional encoder of the mobile communication system according to claim 3, wherein the dual mode concatenated convolutional encoder of the mobile communication system further comprises a switch for connecting the output of the second Recursive Systematic Convolutional (RSC) encoder and delayer to the substituent in a serial coding mode.
5. The dual mode concatenated convolutional encoder of the mobile communication system according to claim 4, wherein the switch directly connects the output of the second Recursive Systematic Convolutional (RSC) encoder and delayer to an output terminal side in a parallel coding mode.
6. The dual mode concatenated convolutional encoder of the mobile communication system according to claim 4, wherein the second Recursive Systematic Convolutional (RSC) encoder can operate faster than the first RSC encoder in the serial coding mode.
7. The dual mode concatenated convolutional encoder of the mobile communication system according to claim 3, wherein the Recursive Systematic Convolutional (RSC) encoder adapts a encoder having 4 constraint length.
8. The dual mode concatenated convolutional encoder of the mobile communication system according to claim 3, wherein the 1n code rate is 12.
9. A serially concatenated convolutional decoder of a mobile communication system, comprising:
a demultiplexer and zero inserter for outputting the received code as it is in a parallel decoding mode, providing an inputted substituted code to a multiplexer and inserting zero on the position of the substituted code and outputting the zero inserted code bit in a serial decoding mode;
an inner Soft In Soft Out (SISO) input unit for generating a decode value by adapting the code bit and a feedback-inputted probability value to a maximum probability decode algorithm;
a deinterleaver for deinterleaving the generated decode value;
a multiplexer for inserting the substituted code into the decode value outputted from the deinterleaver or selecting the puncture bit and outputting it;
an outer SISO output unit for generating the final decode value by adapting a decode value having the substituted code or a probability value such as a code value and a zero value provided from the puncture bit and deinterleaver to the maximum probability decode algorithm; and
a puncturer and interleaver for puncturing the final decode value with a puncturing pattern, interleaving it, and providing it as a probability value of the inner SISO input unit.
10. The dual mode concatenated convolutional decoder of the mobile communication system according to claim 9, wherein the inner Soft In Soft Out (SISO) input unit operates faster than the outer SISO output unit in the serial decoding mode.
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 enhancing handover over a wireless connection, for use in a plurality of moving devices, the method comprising:
receiving a control message by one of a plurality of moving devices;
transmitting a report message by the one of the plurality of moving devices, wherein the one of the plurality of moving devices sets in a state for group handover and represents all others of the plurality of moving devices for a handover decision; and
determining a part or all of the plurality of moving devices are allowed to perform the group handover according to the report message, each of the part or all of the plurality of moving devices allowed to perform the group handoverperforms a handover procedure sequentially after receiving a reconfiguration message.
2. The method as claimed in claim 1, wherein the control message comprises a measurement command, and the one of the plurality of moving devices prepares a measure report in the report message in response to the measurement command.
3. The method as claimed in claim 2, wherein the measure report comprises a sequence of user equipment identifiers (UE IDs) of the plurality of moving devices.
4. The method as claimed in claim 2, wherein the measure report further comprises information representing for a group of the plurality of moving devices.
5. The method as claimed in claim 2, wherein the measure report further comprises mobility information.
6. The method as claimed in claim 1, wherein determining the part or all of the plurality of moving devices allowed to perform the group handover comprising
determining a group handover decision by a first control node according to the report message from the one of the plurality of moving devices,
if the group handover is allowed, the first control node indicating a plurality of timers for controlling the group handover and sending a handover request to a second control node.
7. The method as claimed in claim 6, wherein the first control node indicates the plurality of timers for controlling the group handover by a timer list.
8. The method as claimed in claim 7, wherein the timer list comprises a handover timer for each of the plurality of moving devices in the group handover.
9. The method as claimed in claim 7, wherein the timer list comprises a path switch timer for each of the plurality of moving devices in the group handover.
10. The method as claimed in claim 6, wherein the handover request comprises a sequence of the plurality of moving devices.
11. The method as claimed in claim 10, wherein the sequence is represented as a sequence of user equipment identifiers (UE IDs) of the plurality of moving devices.
12. The method as claimed in claim 6, wherein wherein each of the plurality of moving devices is respectively placed in a corresponding carriage of a train, and wherein the measure report further comprises a sequence S={u1, u2, . . . , un}, where uk is an user equipment identifier (UE ID) of one of the plurality of moving devices in k-th carriage.
13. The method as claimed in claim 12, wherein each of the plurality of timers is correspoding to one of the plurality of moving devices for handover controlling.
14. The method as claimed in claim 6, wherein the plurality of timers is adjusted according to the velocity of the train, the length of the carriages of the train, or an overlapping area between the first control node and the second control node.
15. The method as claimed in claim 6, wherein the plurality of timers for handover controlling is adjusted according to information from the report message by an overlapping area between the first control node and the second control node.
16. The method as claimed in claim 6, wherein each of the moving devices allowed to perform the group handover receives the reconfiguration message and performs the handover according to corresponding one of the plurality of timers, and after the correspoding timer is expired, the next handover procedure is configured according to a sequence of the plurality of moving devices.
17. The method as claimed in claim 6, further comprising
the second control node transmitting a handover response to the first control node in response to the handover request, wherein the handover response comprises information indicating which of the plurality of moving devices are allowed to perform the group handover.
18. The method as claimed in claim 17, wherein the handover response comprises a first handover request response which indicates that all of the plurality of moving devices are allowed to perform the group handover, and information for the first control node to perform the group handover.
19. The method as claimed in claim 17, wherein when the first control node receives the handover response comprising the first handover request response, the first control node starts to perform all handover procedures for all of the plurality of moving devices according to the pluralty of timers.
20. The method as claimed in claim 17, wherein the handover response comprises a confirmation of the plurality of timers for controlling the group handover.
21. The method as claimed in claim 20, wherein the plurality of timers for controlling the group handover is provided by a timer list.
22. The method as claimed in claim 21, wherein the timer list comprises a handover timer for each of the plurality of moving devices in the group handover.
23. The method as claimed in claim 21, wherein the timer list comprises a path switch timer for each of the plurality of moving devices in the group handover.
24. The method as claimed in claim 17, wherein the handover response comprises a second handover request response, which indicates that n moving devices are allowed to perform the group handover, wherein n is equal to zero or a number smaller than the total number of the the plurality of moving devices, the handover response further comprises information for the first control node to perform the group handover, if n is larger than zero.
25. The method as claimed in claim 24, wherein the handover response comprises a confirmation of the plurality of timers for controlling the group handover, if n is larger than zero.
26. The method as claimed in claim 25, wherein the plurality of timers for controlling the group handover is provided by a timer list.
27. The method as claimed in claim 26, wherein the timer list comprises a handover timer for each of the plurality of moving devices in the group handover.
28. The method as claimed in claim 26, wherein the timer list comprises a path switch timer for each of the plurality of moving devices in the group handover.
29. The method as claimed in claim 24, wherein when the first control node receives the handover response comprises the second handover request response, the first control node starts to perform handover procedures for the n moving devices, if n is larger than zero according to a pluralty of timers in the timer list.
30. The method as claimed in claim 17, wherein when the first control node performs the handover procedures for the ith moving device in some or all of the plurality of moving devices allowed to perform the group handover, after the timer Tci\u22121 for the (i\u22121)th moving device in the timer list timeout, the first control node sends the reconfiguration message to the ith moving device to start performing the handover procedure.
31. The method as claimed in claim 30, wherein when the first control node sends the reconfiguration message to the ith moving device to start performing the handover procedure, substantially the same time the first control node sends another one of the timers to perform a path switch procedure for the ith moving device.
32. The method as claimed in claim 17, wherein the information further comprises Target C-RNTI, Target DRB ID (uploaddownload), Target eNB AS Security Algorithm from the second control node for the first control node to perform the group handover.
33. A moving device comprising a transmitter, a receiver, and a processing circuit coupled to the transmitter and the receiver, wherein the transmitter and the receiver respectively transmits and receives wireless signals, and the processing circuit is configured for
receiving a control message;
setting in a state for group handover to representing others of the plurality of moving devices in the group handover; and
preparing and transmitting a measure report to determine a number of the plurality of moving devices which are allowed to sequentially perform handover operation in the group handover.
34. The moving device as claimed in claim 33, wherein the control message comprises a measurement command, and the one of the pluarity of moving devices prepares the measure report in the report message in response to the measurement command.
35. The moving device as claimed in claim 33, wherein the measure report comprises a sequence of user equipment identifiers (UE IDs) of the plurality of moving devices.
36. The moving device as claimed in claim 33, wherein the measure report further comprises information representing for a group of the plurality of moving devices.
37. A control node comprising a transmitter, a receiver, and a processing circuit coupled to the transmitter and the receiver, wherein the transmitter and the receiver respectively transmits and receives wireless signals, and the processing circuit is configured to:
transmitting a control message;
receiving a report message in response to the control message by a moving device of a plurality of moving devices, wherein the one of the plurality of moving devices sets in a state for group handover to representing others of the plurality of moving devices in the group handover; and
determining a group handover decision according to the report message from the one of the plurality of moving devices,
if the result of the group handover decision indicates that the group handover is allowed, the control node indicating a plurality of timers for controlling the group handover and sending a handover request to a target control node.
38. The control node as claimed in claim 37, wherein the plurality of timers for sequentially controlling the group handover is provided by a timer list.
39. The control node as claimed in claim 38, wherein the timer list comprises a handover timer for each of the plurality of moving devices in the group handover.
40. The control node as claimed in claim 38, wherein the timer list comprises a path switch timer for each of the plurality of moving devices in the group handover.
41. The control node as claimed in claim 37, wherein the processing circuit is further configured to receiving a handover response in response to the handover request, wherein the handover response comprises information related to that some or all of the plurality of moving devices are allowed to perform the group handover.
42. The control node as claimed in claim 41, wherein the handover response comprises a first handover request response, which indicates that all of the plurality of moving devices are allowed to perform the group handover, and information to perform the group handover.
43. The control node as claimed in claim 41, wherein when the handover response comprising the first handover request response is received, the processing circuit is further configured to starting to sequentially perform all handover procedures for all of the plurality of moving devices according to the pluralty of timers.
44. The control node as claimed in claim 41, wherein the handover response comprises a confirmation of the pluality of timers for controlling the group handover.
45. The control node as claimed in claim 41, wherein the handover response comprises a second handover request response, which indicates that n moving devices are allowed to perform the group handover, wherein n is equal to zero or a number smaller than the total number of the the plurality of moving devices, the handover response further comprises information to perform the group handover, if n is larger than zero.
46. The control node as claimed in claim 45, wherein when the handover response comprises the second handover request response, the processing circuit is further configured to starting to perform handover procedures for the n moving devices, if n is larger than zero according to the pluralty of timers.
47. The control node as claimed in claim 41, wherein when the processing circuit is further configured to performing a handover procedure for the ith moving device in some or all of the plurality of moving devices allowed to perform the group handover, after the timer Tci\u22121 for the (i\u22121)th moving device in the timer list timeout, the processing circuit is further configured to sending a reconfiguration message to the ith moving device to start performing the handover procedure, wherein i is an integer and is greater than zero and smaller than or equal to the number of the plurality of moving devices allowed to perform the group handover.
48. The control node as claimed in claim 47, wherein when the processing circuit is further configured to sending the reconfiguration message to the ith moving device to start performing the handover procedure, substantially the same time the processing circuit is further configured to sending another one of the plurality of timers to perform a path switch procedure for the ith moving device.
49. The control node as claimed in claim 37, wherein the processing circuit is further configured to sequentially and respectivley sending a reconfiguration message and performming a handover procedure according to corresponding one of the timers, and each of the moving devices allowed to perform the group handover receives, and after the correspoding timer is expired, the next handover procedure is configured according to a sequence of the plurality of moving devices.