US 8,130,720 B2Granted

Supporting enhanced uplink transmission during soft handover

AssigneeInterDigitial Technology Corporation

InventorsGoudong Zhang, Sung-Hyuk Shin, Stephen E. Terry, James M. Miller, Stephen G. Dick

Life of this patent

Estimating the term…

Loading patent…

Abstract

An enhanced uplink user equipment is in soft handover. A radio network controller selects a primary Node-B out of a plurality of Node-Bs supporting the soft handover. The radio network controller receiving successfully received enhanced uplink data packets from the plurality of Node-Bs. The radio network controller reordered the successfully received enhanced uplink data packets for in-sequence deliver. The primary Node-B sends specified scheduling information to the user equipment that the other Node-Bs does not transmit. At least the primary Node-B transmits acknowledgements and negative acknowledgements to the user equipment.

Claims3

Dependent claims

A method for enhanced uplink communication during soft handover implemented in a Node-B operating as a primary Node-B, comprising:

receiving quality information from a radio network controller (RNC);
using the quality information to determine specified scheduling information including the maximum transmission power of a wireless transmit/receive unit (WTRU);
transmitting to the WTRU the specified scheduling information, wherein the specified scheduling information is not transmitted to the WTRU by any non-primary Node-B;
receiving an enhanced uplink data packet from the WTRU in response to transmitting the specified scheduling information;
performing a cyclic redundancy check (CRC) on the enhanced uplink data packet;
transmitting an acknowledgement (ACK) or a negative acknowledgment (NACK) to the WTRU in response to the received enhanced uplink data packet wherein the transmission of either the ACK or NACK is based on the results of the CRC;
and
further transmitting a successfully received enhanced uplink data packet to the RNC.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/434,330Filed 15 May 2006 · continuation
Priority: 5 Nov 2003
Published: US 2006/0215662 A128 Sep 2006
Granted: 6 Mar 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04L 1/1893
Arrangements specially adapted for the transmitter end: physical mapping arrangements
H04L 1/1812
Automatic repetition systems, e.g. Van Duuren systems: hybrid protocols; Hybrid automatic repeat request [HARQ]
H04L 1/1887
Arrangements specially adapted for the transmitter end: scheduling and prioritising arrangements
H04W 36/18
Performing reselection for specific purposes: for allowing seamless reselection, e.g. soft reselection

Family

Application60/517,656Us provisional application · filed 5 Nov 2003
Application60/519,990Us provisional application · filed 14 Nov 2003
Application60/520,692Us provisional application · filed 17 Nov 2003
Application60/578,674Us provisional application · filed 10 Jun 2004
Application10/962,720Parent of this continuation · filed 12 Oct 2004
US 2006/0215662 A1Pre-grant publication · published 28 Sep 2006
US 7,046,648 B2Parent of this continuation
US 2005/0094600 A1Published application
US 8,130,720 B2This patent

From the US filing history. Foreign family members aren’t listed.