Source: http://www.google.com/patents/US6278880?dq=U.S.+Patent+%23+5,723,324
Timestamp: 2017-04-23 13:58:01
Document Index: 343459353

Matched Legal Cases: ['art 1', 'art 2', 'art 3', 'art 4', 'art 5', 'art 6', 'art 7', 'art 8']

Patent US6278880 - DECT/GSM external handover - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA method for controlling the handover of a DECT portable part from a first DECT fixed part to a second DECT fixed part during provision of a data service, both fixed parts communicating with a GSM mobile switch center, the method comprising the first fixed part detecting that the handover has been requested,...http://www.google.com/patents/US6278880?utm_source=gb-gplus-sharePatent US6278880 - DECT/GSM external handoverAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS6278880 B1Publication typeGrantApplication numberUS 09/598,861Publication dateAug 21, 2001Filing dateJun 21, 2000Priority dateOct 11, 1996Fee statusLapsedAlso published asDE69732751D1, DE69732751T2, EP0836338A2, EP0836338A3, EP0836338B1, US6134439Publication number09598861, 598861, US 6278880 B1, US 6278880B1, US-B1-6278880, US6278880 B1, US6278880B1InventorsTuomo Sipila, Markus Tapani HakasteOriginal AssigneeNokia Mobile Phones LimitedExport CitationBiBTeX, EndNote, RefManPatent Citations (13), Non-Patent Citations (27), Referenced by (17), Classifications (9), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetDECT/GSM external handover
US 6278880 B1Abstract
What we claim is: 1. In the combination of a GSM communication system including a mobile switching center, a first DECT communication system including a first DECT fixed part, and a second DECT communication system including a second DECT fixed part, wherein each of the first and the second DECT fixed parts is operative for communication with a DECT portable part over an air interface and communication with the mobile switching center via a link, thereby allowing the mobile switching center to communicate data to the DECT portable part via either one of the first or the second DECT fixed parts, each of which is operative to acknowledge to the mobile switching center receipt of said data,
a method for controlling handover of the DECT portable part from the first DECT fixed part to the second DECT fixed part during provision of a data service, the method comprising steps of: the first DECT fixed part recognizing that the handover has been requested and, during handover, not providing acknowledgment to the mobile switching center of transmission of data received therefrom. 2. A method as claimed in claim 1, wherein upon handover of the portable part to the second fixed part, the second fixed part applies a reset to the link with the mobile switch center.
FU1 size
RLP frames
1 frame + 10 byte fill
100 bytes 3 frames + 10 byte
full slot/
1 frame + 2 byte fill
2 frames + 20 byte
P/FLAPU = P/FRLP UA
P/FLAPU = P/FRLP DECT CC
The LAPU/RLP parameter
negotiation (see text)
I + S frame
N(S)LAPU = N(S)RLP N(R)LAPU = N(R)RLP P/FLAPU = P/FRLP RR
N(R)LAPU = N(R)RLP P/FLAPU = P/FRLP RNR
N(R)LAPU = N(R)RLP P/FLAPU = P/FRLP REJ
N(R)LAPU = N(R)RLP P/FLAPU = P/FRLP —
No mapping DECT shall do
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