Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2007-01-16
2007-01-16
Kerveros, James C (Department: 2138)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
Reexamination Certificate
active
10667778
ABSTRACT:
Frames exchanged between a control unit and a radio terminal via base stations are encapsulated, with timestamping information, in frames over an asynchronous interface between the control unit and each station. The timestamping information accompanying a data frame over the asynchronous interface indicates an instant of transmission of the said frame by each station according to a time counter specific to the radio section of the connection. The information accompanying an acknowledgement frame over the asynchronous interface indicates an instant of reception of the said frame by each station according to the said time counter. On reception of an acknowledgement frame accompanied by a timestamping information element indicating an instant of reception and indicating the non-reception by the terminal of the said data frame, the reception of the acknowledgement frame is selectively taken into account for the retransmission of the said data frame.
REFERENCES:
patent: 5745502 (1998-04-01), Khayrallah et al.
patent: WO 01/78489 (2001-10-01), None
patent: WO 02/01735 (2002-01-01), None
ETSI TS 125 301 V4.2.0 (Dec. 2001) Technical Specification, Universal Mobile Telecommunications System (UMTS); “Radio Interface Protocol Architecture (3GPP TS 25.301 version 4.2.0 Release 4),” pp. 1-40.
ETSI TS 125 322 V5.1.0 (Jun. 2002) Technical Specification, “Universal Mobile Telecommunications System (UMTS); Radio Link Control (RLC) protocol specification (3GPP TS 25.322 version 5.1.0 Release 5),” pp. 1-77.
ETSI TS 125 401 V4.2.0 (Sep. 2001) Technical Specification, “Universal Mobile Telecommunications System (UMTS); UTRAN Overall Description (3GPP TS 25.401 version 4.2.0 Release 4),” pp. 1-39.
ETSI TS 125 427 V4.3.0 (Dec. 2001) Technical Specification, “Universal Mobile Telecommunications System (UMTS); UTRAN lub/lur Interface User Plane Protocol for DCH Data Streams (3GPP TS 25.427 version 4.3.0 Release 4),” pp. 1-34.
Baudry Benjamin
Isnard Olivier
Kerveros James C
Nortel Networks Limited
Trop Pruner & Hu PC
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