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公开(公告)号：JP2000031941A
公开(公告)日：2000-01-28
申请号：JP16759799
申请日：1999-06-15
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BERENZWEIG ADAM L , FALCO STEVEN ANTHONY , MIZIKOVSKY SEMYON B , PEKRUL WINSTON EDWARD , RANCE ROBERT JOHN , YOUTKUS DONALD JOSEPH
IPC: G10L19/00 , H04K1/00 , H04L9/06 , H04L9/12 , H04L9/20 , H04L9/26 , H04Q7/38 , H04K1/02 , G09C1/00
Abstract: PROBLEM TO BE SOLVED: To obtain a voice processor architecture which does not have to use an external cipher synchronous input, has minimum voice deterioration and also accomplishes improved confidentiality by including a block eneryptor (enciphering device) and a key (key) stream generator in a transmitter side and enciphering a voice bit that is encoded by it. SOLUTION: A class 1A bit (1st block) is supplied as an input to a block encryptor (enciphering device) 34 from a voice coder (encoder) 32 included in a transmitter 30, a class 1B bit (2nd block) is supplied as an input to an XOR operator 38 and a class 2B bit (3rd block) is supplied as an input to an XOR operator 40. The encryptor (enciphering device) 34 enciphers (encrypts) a plaintext of a block into a cipher text by using an inversely transformable encryption algorithm having a key (key) related to an intended receiver.
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公开(公告)号：JP2000197113A
公开(公告)日：2000-07-14
申请号：JP34800599
申请日：1999-12-07
Applicant: LUCENT TECHNOLOGIES INC
Inventor： FALCO STEVEN ANTHONY , STRICKLAND STEPHEN GREGORY , TU MING-HSU
Abstract: PROBLEM TO BE SOLVED: To prevent any other message from being interrupted when a time slot is not used to the maximum by selecting a priority system for scheduling a message to the time slot. SOLUTION: A hyper-frame number is used as characteristics for selecting a priority system for scheduling a message to a time slot on a time slotted control channel. When the time slot is reserved for a broadcast message, scheduling is operated so that the broadcast message can be transmitted by this time slot, and this broadcast message is transmitted. When the time slot is not the primary super-frame of a hyper-frame but the secondary super-frame, whether or not a message transmitted by the time slot of the primary super-frame is pages is judged, and when the pages are present in the corresponding time slot, scheduling is operated so that the same pages can be transmitted by the time slot.
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公开(公告)号：DE69923282T2
公开(公告)日：2006-03-30
申请号：DE69923282
申请日：1999-11-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： FALCO STEVEN ANTHONY , STRICKLAND STEPHEN GREGORY , TU MING-HSU
Abstract: A method that selects one of a plurality of priority schemes for scheduling messages for one of cyclically repeating sets of time slots of a control channel based on at least one of a plurality of characteristics of the state of the control channel (10). The state of the control channel (10) is the all information regarding what has arrived, what is queued, and what has been transmitted. This includes the status of the queues, the messages awaiting transmission, along with their type and the time they have been waiting, the sequence of past transmissions, as well as other information. In one embodiment, in a control channel of a TDMA system where the hyperframe number is the characteristic used to select the priority scheme, a priority scheme is selected that assigns a voice page highest priority when the hyperframe number is an even number, and that assigns an R-DATA SPACH notification highest priority when the hyperframe number is an odd number. In another embodiment of the invention, if there is a packed airlink message, the packed airlink message is scheduled in the time slot. If there are no packed airlink messages, then the method dynamically alters the priority of messages based on whether there is a voice page or an R-DATA SPACH notification in the message queues since at least the end of the time slot construction period of a corresponding time slot of a previous hyperframe. If there are no such messages and there is a non-packable message, the non-packable message is scheduled in the time slot, although if there are no non-packable messages and there is a voice page or R-DATA SPACH notification, it is packaged in an unpacked airlink message that is scheduled in the time slot. However, if there is a voice page or an R-DATA SPACH notification in any of the message queues since at least the end of the time slot construction period of the corresponding time slot of the previous hyperframe, the voice page or R-DATA SPACH is packaged in an unpacked airlink message that is scheduled in the time slot. This significantly reduces both the number of messages that are blocked and the number of messages timed out.
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公开(公告)号：DE69923282D1
公开(公告)日：2005-02-24
申请号：DE69923282
申请日：1999-11-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： FALCO STEVEN ANTHONY , STRICKLAND STEPHEN GREGORY , TU MING-HSU
Abstract: A method that selects one of a plurality of priority schemes for scheduling messages for one of cyclically repeating sets of time slots of a control channel based on at least one of a plurality of characteristics of the state of the control channel (10). The state of the control channel (10) is the all information regarding what has arrived, what is queued, and what has been transmitted. This includes the status of the queues, the messages awaiting transmission, along with their type and the time they have been waiting, the sequence of past transmissions, as well as other information. In one embodiment, in a control channel of a TDMA system where the hyperframe number is the characteristic used to select the priority scheme, a priority scheme is selected that assigns a voice page highest priority when the hyperframe number is an even number, and that assigns an R-DATA SPACH notification highest priority when the hyperframe number is an odd number. In another embodiment of the invention, if there is a packed airlink message, the packed airlink message is scheduled in the time slot. If there are no packed airlink messages, then the method dynamically alters the priority of messages based on whether there is a voice page or an R-DATA SPACH notification in the message queues since at least the end of the time slot construction period of a corresponding time slot of a previous hyperframe. If there are no such messages and there is a non-packable message, the non-packable message is scheduled in the time slot, although if there are no non-packable messages and there is a voice page or R-DATA SPACH notification, it is packaged in an unpacked airlink message that is scheduled in the time slot. However, if there is a voice page or an R-DATA SPACH notification in any of the message queues since at least the end of the time slot construction period of the corresponding time slot of the previous hyperframe, the voice page or R-DATA SPACH is packaged in an unpacked airlink message that is scheduled in the time slot. This significantly reduces both the number of messages that are blocked and the number of messages timed out.
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公开(公告)号：CA2289188A1
公开(公告)日：2000-06-10
申请号：CA2289188
申请日：1999-11-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： STRICKLAND STEPHEN GREGORY , TU MING-HSU , FALCO STEVEN ANTHONY
Abstract: A method that selects one of a plurality of priority schemes for scheduling messages for one of cyclically repeating sets of time slots of a control channel based on at least one of a plurality of characteristics of the state of the control channel (10). The state of the control channel (10) is the all information regarding what has arrived, what is queued, and what has been transmitted. This includes the status of the queues, the messages awaiting transmission, along with their type and the time they have been waiting, the sequence of past transmissions, as well as other information. In one embodiment, in a control channel of a TDMA system where the hyperframe number is the characteristic used to select the priority scheme, a priority scheme is selected that assigns a voice page highest priority when the hyperframe number is an even number, and that assigns an R-DATA SPACH notification highest priority when the hyperframe number is an odd number. 1n another embodiment of the invention, if there is a packed airlink. message, the packed airlink message is scheduled in the time slot. If there are no packed airlink messages, then the method dynamically alters the priority of messages based on whether there is a voice page or an R-DATA SPACH notification in the message queues since at least the end of the time slot construction period of a corresponding time slot of a previous hyperframe. If there are no such messages and there is a non-packable message, the non-packable message is scheduled in the time slot, although if there are no non-packable messages and there is a voice page or R-DATA SPACH notification, it is packaged in an unpacked airlink message that is scheduled in the time slot. However, if there is a voice page or an R-DATA SPACH notification in any of the message queues since at least the end of the time slot construction period of the corresponding time slot of the previous hyperframe, the voice page or R-DATA SPACH is packaged in an unpacked airlink message that is scheduled in the time slot. This significantly reduces both the number of messages that are blocked and the number of messages timed out. Figures 4A-4E.
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Patent Agency Ranking
公开(公告)号：DE69916931D1
公开(公告)日：2004-06-09
申请号：DE69916931
申请日：1999-06-08
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BERENZWEIG ADAM L , FALCO STEVEN ANTHONY , MIZIKOVSKY SEMYON B , PEKRUL WINSTON EDWARD , RANCE ROBERT JOHN , YOUTKUS DONALD JOSEPH
Abstract: The present invention is an encrypting speech processor architecture that provides enhanced security without the use of external cryptosync and with minimal speech degradation. This is accomplished by incorporating a block encryptor (34) and a keystream generator (36) (instead of a fixed secret mask encryption scheme, such as those implemented in voice ciphers) for encrypting blocks of encoded speech bits at a transmitter side. The block encryptor (34) employs an invertible cryptographic algorithm and internal cryptosync to convert a first block of encoded speech bits into a first ciphertext block (output 34). The first ciphertext block (output 34) is used to generate a keystream (output 36), which is then used to encrypt a second ciphertext block.
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公开(公告)号：CA2289188C
公开(公告)日：2004-04-27
申请号：CA2289188
申请日：1999-11-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： TU MING-HSU , STRICKLAND STEPHEN GREGORY , FALCO STEVEN ANTHONY
Abstract: A method that selects one of a plurality of priority schemes for scheduling messages for one of cyclically repeating sets of time slots of a control channel based on at least one of a plurality of characteristics of the state of the control channel. The state of the contro l channel is all information regarding what has arrived, what is queued, and what has been transmitted. This includes the status of the queues, the messages awaiting transmission, along with their type and th e time they have been waiting, the sequence of past transmissions, as well as other information. I n one embodiment, in a control channel of a TDMA system where the hyperframe number is the characteristic used to select the priority scheme, a priority scheme is selected that assigns a voice page highest priority when the hyperframe number is an even number, and that assigns an R-DATA SPACH notification highest priority when the hyperframe number is an odd number. In another embodiment of the invention, if there is a packed airlink message, the packed airlink message is scheduled i n the time slot. If there are no packed airlink messages, then the method dynamically alters the priority of messages based on whether there is a voice page or an R-DATA SPACH notification in the message queues since at least the end of the time slot construction period of a corresponding time slot of a previous hyperframe. If there are no such messages and there is a non-packable message, the non- packable message is scheduled in the time slot, although if there are no non-packable messages a nd there is a voice page or R-DATA SPACH notification, it is packaged in an unpacked airlink message tha t is scheduled in the time slot. However, if there is a voice page or an R-DATA SPACH notification in any of the message queues since at least the end of the time slot construction period of the corresponding time slot of the previous hyperframe, the voice page or R-DATA SPACH is packaged in an unpack ed airlink message that is scheduled in the time slot. This significantly reduces both the numb er of messages that are blocked and the number of messages timed out.
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公开(公告)号：BR0002974A
公开(公告)日：2001-03-13
申请号：BR0002974
申请日：2000-07-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MCKAY BERNARD , MATUSEVICH ALEX , FALCO STEVEN ANTHONY , MURPHY MYLES PATRICK , TSAI SHENG-JEN
Abstract: The synchronization system uses a TDMA or AMPS air interface to provide tuning synchronization between previously unsynchronized base stations. The synchronization of base stations is critical between when determining the geographical position of a mobile because the geographical position is determined using a time difference of arrival method. In order to synchronize a remote base station with a serving base station, the remote base station receives a signal from the serving base station and measuring the receiving time of the signal at the remote base station in relation to the clock of the remote base station. The synchronization system determines the transmission time of the signal based on the reception time of the signal and the distance between the base stations, in relation to the clock signal of the second station, and synchronizes the clock of the remote base station to the clock of the serving base station based on the offset in the clock cycles at the time the signal was transmitted.
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公开(公告)号：DE69916931T2
公开(公告)日：2005-04-28
申请号：DE69916931
申请日：1999-06-08
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BERENZWEIG ADAM L , FALCO STEVEN ANTHONY , MIZIKOVSKY SEMYON B , PEKRUL WINSTON EDWARD , RANCE ROBERT JOHN , YOUTKUS DONALD JOSEPH
Abstract: The present invention is an encrypting speech processor architecture that provides enhanced security without the use of external cryptosync and with minimal speech degradation. This is accomplished by incorporating a block encryptor (34) and a keystream generator (36) (instead of a fixed secret mask encryption scheme, such as those implemented in voice ciphers) for encrypting blocks of encoded speech bits at a transmitter side. The block encryptor (34) employs an invertible cryptographic algorithm and internal cryptosync to convert a first block of encoded speech bits into a first ciphertext block (output 34). The first ciphertext block (output 34) is used to generate a keystream (output 36), which is then used to encrypt a second ciphertext block.
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公开(公告)号：CA2270081C
公开(公告)日：2002-12-17
申请号：CA2270081
申请日：1999-04-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： YOUTKUS DONALD JOSEPH , RANCE ROBERT JOHN , MIZIKOVSKY SEMYON B , PEKRUL WINSTON EDWARD , BERENZWEIG ADAM L , FALCO STEVEN ANTHONY
IPC: G10L19/00 , H04K1/00 , H04L9/06 , H04L9/12 , H04L9/20 , H04L9/26 , H04Q7/38 , H04L9/18 , G10L3/00 , H04L1/00
Abstract: The present invention is an encrypting speech processor architecture th at provides enhanced security without the use of external cryptosync and with minimal speech degradation. This is accomplished by incorporating a black encryptor (34) an d a keystream generator (36) (instead of a fixed secret mask encryption scheme, such as those implemented in voice ciphers) for encrypting blocks of encoded speech bits at a transmitter side. The block encryptor (34) employs an invertible cryptographic algorithm and internal cryptosync to convert a first block of encoded speech bits into a first ciphertext block (output 34) . The first ciphertext block (output 34) is used to generate a keystream (output 36), which is then used to encrypt a second ciphertext block (FIG. 2).
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