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公开(公告)号:DE69736664D1
公开(公告)日:2006-10-26
申请号:DE69736664
申请日:1997-04-03
Applicant: ERICSSON TELEFON AB L M
Inventor: ENEROTH GOERAN , PETERSEN LARS-GOERAN
Abstract: In a telecommunication system that uses asynchronous transfer mode (ATM) with the ATM adaption layer (AALm) protocol as a data transfer infrastructure, a method and apparatus for segmenting and reassembling user data packets. The method and apparatus improve the quality and effectiveness of telecommunication data transfer by avoiding the problems associated with excessively long minicells.
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公开(公告)号:CA2270463A1
公开(公告)日:1998-05-07
申请号:CA2270463
申请日:1997-10-14
Applicant: ERICSSON TELEFON AB L M
Inventor: ENEROTH GOERAN , PETERSEN LARS-GOERAN
IPC: H04Q7/38 , H04L12/70 , H04L12/933 , H04Q11/04
Abstract: In a telecommunication system that employs Asynchronous Transfer Mode (ATM) and minicells to transport communication data, accurate minicell header information dramatically improves the ability to align the minicells at a receiving station. More accurate minicell header information can be achieved by deriving a single header integrity check code (e.g., a cyclic redundancy code) for each ATM cell based upon minicell headers that have been inserted into contiguous locations in the ATM cell. By inserting the headers in contiguous locations, the receiving station can extract each header without having to rely upon the length indicator codes in each header, which may contain one or more bit errors. This, in turn, allows the receiving station to recompute the header integrity check code with far fewer errors, thus substantially increasing the probability of detecting and correcting the aforementioned errors and, ultimately, the ability to align the minicells.
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公开(公告)号:DE69736665D1
公开(公告)日:2006-10-26
申请号:DE69736665
申请日:1997-06-03
Applicant: ERICSSON TELEFON AB L M
Inventor: PETERSEN LARS-GOERAN , ENEROTH GOERAN
Abstract: Segmenting, multiplexing and transporting user data packets in a telecommunication system that employs Asynchronous Transfer Mode can be accomplished more effectively by assigning a transmission priority code to each segmented user data packet based on the type of data contained therein. Data that is highly sensitive to transmission delays (e.g., voice data) will be assigned a high priority, while data that is less sensitive to transmission delays (e.g., signal strength measurement data) will be assigned a lower priority. When the user data packet segments are assembled into segment minicells and multiplexed into the ATM cell stream, those with the highest priority will be inserted first so that they experience the least amount of transmission delay.
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公开(公告)号:SE515588C2
公开(公告)日:2001-09-03
申请号:SE9600279
申请日:1996-01-25
Applicant: ERICSSON TELEFON AB L M
Inventor: ENEROTH GOERAN , PETERSEN LARS GOERAN , NAESMAN ANDERS
IPC: H04L20060101 , H04L45/125 , H04L47/43 , H04L49/111 , H04Q11/04 , H04W28/06 , H04W92/02 , H04L12/56 , H04Q7/20
Abstract: The method to indicate the size of a mini cell in a mobile telephone communications system involves providing a cell size indicator in the header of the mini cell. The cell length indicator is a short fixed length field which is non-linearly coded. Preferably, the cell size indicator includes an extension bit provided in the fixed size length field. The extension bit, if set, indicates that a further fixed size length field follows the fixed size length field in the header. The length indicator includes a predefined code which, if present, indicates that a further fixed size length field follows the fixed size length field in the header.
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公开(公告)号:DE69736664T2
公开(公告)日:2007-09-13
申请号:DE69736664
申请日:1997-04-03
Applicant: ERICSSON TELEFON AB L M
Inventor: ENEROTH GOERAN , PETERSEN LARS-GOERAN
Abstract: In a telecommunication system that uses asynchronous transfer mode (ATM) with the ATM adaption layer (AALm) protocol as a data transfer infrastructure, a method and apparatus for segmenting and reassembling user data packets. The method and apparatus improve the quality and effectiveness of telecommunication data transfer by avoiding the problems associated with excessively long minicells.
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公开(公告)号:DE69731276T2
公开(公告)日:2005-03-10
申请号:DE69731276
申请日:1997-01-24
Applicant: ERICSSON TELEFON AB L M
Inventor: ENEROTH GOERAN , NAESMAN ANDERS , PETERSEN LARS-GOERAN
IPC: H04L20060101 , H04L45/125 , H04L47/43 , H04L49/111 , H04Q11/04 , H04W28/06 , H04W92/02 , H04L12/56
Abstract: The method to indicate the size of a mini cell in a mobile telephone communications system involves providing a cell size indicator in the header of the mini cell. The cell length indicator is a short fixed length field which is non-linearly coded. Preferably, the cell size indicator includes an extension bit provided in the fixed size length field. The extension bit, if set, indicates that a further fixed size length field follows the fixed size length field in the header. The length indicator includes a predefined code which, if present, indicates that a further fixed size length field follows the fixed size length field in the header.
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公开(公告)号:DE69723683T2
公开(公告)日:2004-05-13
申请号:DE69723683
申请日:1997-05-16
Applicant: ERICSSON TELEFON AB L M
Inventor: PETERSEN LARS-GOERAN , ENEROTH GOERAN
Abstract: When using asynchronous transfer mode (ATM) in low bit rate applications, such as cellular voice communication, bandwidth utilization is significantly improved by employing decoupling minicells. Decoupling minicells are of predetermined length, such as one octet, and are inserted into the payload of ATM cells when there is a delay in the availability of assigned minicells. As soon as an assigned minicell, which contains actual user data, becomes available, the assigned minicell can be inserted into the payload of the current ATM cell immediately after the last decoupling minicell. Unlike prior methods, there is no need to wait until the next ATM cell to insert an assigned minicell.
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公开(公告)号:SE0302920D0
公开(公告)日:2003-11-03
申请号:SE0302920
申请日:2003-11-03
Applicant: ERICSSON TELEFON AB L M
Inventor: SYNNERGREN PER , ENEROTH GOERAN
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公开(公告)号:CA2192791A1
公开(公告)日:1995-12-21
申请号:CA2192791
申请日:1995-06-13
Applicant: ERICSSON TELEFON AB L M
Inventor: BLAU STAFFAN , ENEROTH GOERAN , CARLSUND PETER
Abstract: A network element included in a telecommunication system contains several nodes (1226, 1232, 1234, 1236, 1238) which are included in a system internal to this network element and provides internal network element functions in an internal bearer service network, and internal resources in the form of hardware and software which are used for performing the internal network element functions. The network element can offer an operations system a "white box" view, implying that internal resources are available to this operations system, enabling it to use managed objects representing the internal resources in order to manage the resources according to a second management information model in connection with using them for performing internal network element functions.
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公开(公告)号:DE69736665T2
公开(公告)日:2007-09-13
申请号:DE69736665
申请日:1997-06-03
Applicant: ERICSSON TELEFON AB L M
Inventor: PETERSEN LARS-GOERAN , ENEROTH GOERAN
Abstract: Segmenting, multiplexing and transporting user data packets in a telecommunication system that employs Asynchronous Transfer Mode can be accomplished more effectively by assigning a transmission priority code to each segmented user data packet based on the type of data contained therein. Data that is highly sensitive to transmission delays (e.g., voice data) will be assigned a high priority, while data that is less sensitive to transmission delays (e.g., signal strength measurement data) will be assigned a lower priority. When the user data packet segments are assembled into segment minicells and multiplexed into the ATM cell stream, those with the highest priority will be inserted first so that they experience the least amount of transmission delay.
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