Method and system for polling PDU of radio link control layer

Details Method and system for polling PDU of radio link control layer Method and system for polling PDU of radio link control layer

2003-04-09

2008-11-11

Nguyen, Duc M (Department: 2618)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S236000, C370S449000, C714S748000, C714S750000

Reexamination Certificate

active

07450511

ABSTRACT:
A method for polling a protocol data unit (PDU) of a Radio link control (RLC), including the steps of selecting a data unit in a buffer, transmitting a selected PDU and polling bit to a receiver when it is a polling period, receiving a status signal from the receiver corresponding to the polling bit and varying the polling period when the status signal is received more than a predetermined number of times spanning a number of transmission time period, can prevent waste of wireless resources and delay of data transmission by adaptively varying the radio access capability of a terminal according to the status of the wireless environment. The status signal is an Acknowledge (ACK) signal or a Negative acknowledge (NACK) signal, and if the ACK signal is received more than a predetermined number of times, the polling period is increased and if the NACK signal is received more than a predetermined number of times, the polling period is decreased.

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Chinese Office Action dated Apr. 15, 2005.

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