Mobility enhancement for real time service over high speed...

Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...

Reexamination Certificate

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C455S436000

Reexamination Certificate

active

07821996

ABSTRACT:
A system and method for enhancing service over a high-speed downlink packet access (HSDPA) service in a cellular communication network includes informing a UE of the cells in an HSDPA active subset of cells. The US makes a measurement of the cells and selects a best cell for switching. The UE determines whether the best cell is an intra-node B cell or inter-node B cell with the serving cell from the network. If the best cell is an intra-node B cell, the UE signals the node B of the best cell, the node B switches to the best cell directly and UE receives the data from the target cell directly, and then Node B reports the switch to a radio network controller (RNC) that completes the final switching to the best cell by the RNC. If the best cell is an inter-node B cell, the UE signals the RNC of the best cell directly, whereupon the RNC sends the UE an acknowledgment without waiting for the completeness of the network configurations. The RNC re-routes data to the best cell, and the UE switches to the best cell after receiving the acknowledgment.

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Athina Nickitas-Etienne, “Corresponding Application PCT/US2006/038433—PCT International Preliminary Report on Patentability,” The International Bureau of WIPO, Geneva, Switzerland, May 8, 2008, 5 Pages, most relevant pp. 1 and 5.
Qualcomm, “R1-050340—HSDPA Mobility Enhancements,” 3Gpp TSG-RAN1 #40 bis, Beijing, China, Apr. 4-8, 2005, (R2-050965) 3GPP TSG-RAN WG2 Meeting #46bis, Beijing, China, Apr. 4-8, 2005, 9 pages.
Qualcomm, “R2-050548—L2 based Serving Cell Selection for HSDPA,” 3Gpp TSG-RAN WG2 meeting #46, Scottsdale, Arizona, USA, Feb. 14-18, 2005, 4 pages.

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