Subscriber terminal, network controller and communication...

Details Subscriber terminal, network controller and communication... Subscriber terminal, network controller and communication...

2006-07-25

2006-07-25

Sam, Phirin (Department: 2661)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C709S224000, C455S343400

Reexamination Certificate

active

07082103

ABSTRACT:
In a communication system (SYS) in which a packet data transfer is performed between the network side (NS) and the subscriber terminal side (SS) a physical connection (LC) is maintained during the data packet transfer. An active period detector (AP-DET) detects an active period of data packet generation by evaluating the inter-arrival time (TDIFF) between successively arriving data packets (DP). If the inter-arrival time (TDIFF) falls within a predetermined range a physical connection maintaining device (LC-MAIN) maintains the physical connection (LC) even if a transmitter queue (TR-QUE) temporarily becomes empty. Therefore, within the active period (AP) the transmitter (NS-TR; SS-TR) indicates a non-empty queue. The invention finds particular application in the GPRS/(E)GPRS/GSM environment.

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European Standard (Telecommunications Series) ETSI EN 301 344 V7.3.0, Digital Cellular Telecommunications System (Phase 2+); General Packet Radio Service (GPRS); Service Description; Stage 2 (GSM 03.60 version 7.3.0 Release 1998) (Dec. 1999).
European Standard (Telecommunications Series) GSM 04.60 V8.2.0, Digital Cellular Telecommunications System (Phase 2+); General Packet Radio Service (GPRS); Mobile Station (MS)—Base Station System (BSS) Interface; Radio Link Controll/Medium Access Control (RLC/MAC) Protocol (GSM 04.60 version 8.2.0 Release 1999) (Dec. 1999).

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