Abstract: A method and system for partial reporting of missing sequence numbered information frames within a telecommunication system using selective reject (SREJ) frames. Upon receiving a sequence numbered information frame from a transmit terminal, a receive terminal determines if it is out of sequence. If the sequence numbered information frame is out of sequence, the receive terminal further checks the sequence numbered information frame to see if a poll bit has been set. If the poll bit is not set, the receive terminal further checks to see if the sequence numbered information frame is new or retransmitted. If the sequence numbered information frame is new, a list of missing sequence numbers is constructed beginning with the missing sequence number one greater than the largest number in the receive queue and ending with N(S)−1.

Abstract: A method and system for sequential ordering of missing sequence numbered information frames within a telecommunication system using selective reject (SREJ) frames is disclosed. Upon receiving a sequence numbered information frame from a transmit terminal, a receive terminal determines if it is out of sequence. If the sequence numbered information frame is out of sequence, the receive terminal further checks the sequence numbered information frame to see if a poll bit has been set. If the poll bit is not set, the sequence numbered information frame further checks to see if the sequence numbered information frame is new or retransmitted. If the sequence numbered information frame is new, a list of missing sequence numbers is constructed in ascending sequential order beginning with the missing sequence number one greater than the largest number in the receive queue and ending with N(S)−1.

Abstract: A cellular packet data arrangement includes an interface unit (NIU) to a packet data network and link interface units (LIUs) each providing a channel to a respective radio transceivers for communicating data packets with mobile terminals each having an individual identifier (TEI). Each LIU stores the TEI, channel number, and protocol data for communications with each mobile terminal handled by the LIU. In response to a first LIU receiving a communication from a mobile terminal whose communications have previously been on a channel handled by a second LIU, this is identified from the mobile terminal's TEI not being stored in the first LIU and being stored in the NIU in respect of the second LIU, and the protocol data for the mobile terminal is transferred from the second to the first LIU. To avoid a possible error condition, the first LIU can suppress a reply to the communication from the mobile terminal until this is resent.