SYSTEM FOR EFFICIENT RECOVERY OF NODE-B BUFFERED DATA FOLLOWING MAC LAYER RESET

Title:

SYSTEM FOR EFFICIENT RECOVERY OF NODE-B BUFFERED DATA FOLLOWING MAC LAYER RESET

Document Type and Number:

WIPO Patent Application WO2004025842

Kind Code:

A3

Abstract:

A method and system for the UE and RNC to reduce transmission latency and potentially prevent loss of PDUs upon a MAC layer reset. UE generation of the status PDU is coupled with the MAC layer reset. The RNC generates a message with a MAC reset indication (16). Following the MAC layer reset all PDUs stored in the UE MAC layer reordering buffers (22) are flushed to RLC entities (24) and then processed by RLC entities prior to the generation of a PDU status report (26). The PDU status report provides to the RNC the status of all successfully received PDUs. Upon reception of a PDU status report in the RNC (28), missing PDUs are realized and retransmitted to the UE (30).

Inventors:

TERRY STEVEN E
CHAO YI-JU

Application Number:

PCT/US2003/028360

Publication Date:

July 15, 2004

Filing Date:

September 10, 2003

Export Citation:

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Assignee:

INTERDIGITAL TECH CORP (US)

International Classes:

H04N7/173; C07C67/52; C07C67/54; C07C69/82; G02B26/10; G03B11/00; G03B17/02; G06F1/16; G06F11/10; G06F15/00; G06K17/00; G06K19/00; G06T9/00; G09C1/00; G09G3/02; G10L19/00; G11B20/10; G11B20/14; G11B20/18; H03L7/091; H03M13/03; H03M13/13; H03M13/23; H03M13/29; H04B7/005; H04B7/24; H04B7/26; H04B14/00; H04B17/00; H04H60/72; H04J13/16; H04L7/00; H04L9/08; H04L9/10; H04L9/32; H04L12/28; H04L12/54; H04L25/03; H04L25/49; H04L25/497; H04L27/10; H04L27/156; H04L27/18; H04L47/765; H04L69/40; H04M1/66; H04M1/72415; H04M3/22; H04N5/225; H04N5/44; H04N5/46; H04N5/64; H04N5/74; H04N5/76; H04N5/765; H04N5/907; H04N5/92; H04N7/01; H04N7/08; H04N7/16; H04N7/26; H04N7/36; H04N7/52; H04N9/31; H04N9/64; H04N9/79; H04N21/41; H04N21/414; H04Q3/00; H04W4/06; H04W4/12; H04W4/14; H04W4/16; H04W8/02; H04W8/06; H04W8/08; H04W8/16; H04W8/20; H04W12/06; H04W12/10; H04W24/00; H04W36/04; H04W36/18; H04W36/30; H04W40/22; H04W56/00; H04W72/12; H04W76/02; H04W80/06; H04W84/08; H04W84/12; H04W88/02; G11B20/22; H04L1/00; H04N5/38; H04N5/66; H04N5/775; H04N5/85; H04N9/804; H04N17/00; H04W4/10; H04W8/24; H04W8/26; H04W28/04; H04W36/02; H04W72/04; H04W76/06; (IPC1-7): H04L12/56; H04Q7/00

Foreign References:

US6717927B2	2004-04-06
US6621793B2	2003-09-16
US6681112B1	2004-01-20

Other References: