Abstract
A method and wireless transmit receive unit (WTRU) are disclosed that is configured to perform cell reselection to another cell when the WTRU is in a CELL_FACH state using an Enhanced-Dedicated Channel (E-DCH). The cell reselection is based on internal measurements by the WTRU. Alternatively, the cell reselection can be WTRU based on the WTRU measurements reported to the network.
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3G | 14/09/2009 | ISLD-200910-006 | INTERDIGITAL INC |
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AR070092A1 | 3G | 14/09/2009 | ISLD-200910-006 | INTERDIGITAL INC |
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CN101911779A | 3G | 14/09/2009 | ISLD-200910-006 | INTERDIGITAL INC |
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Technologies
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Claim
1. A method performed by a wireless transmit/receive unit (WTRU), the method comprising:
transmitting, to a base station, a cell update message that includes an indication that the WTRU supports communications over an Enhanced Dedicated Channel (E-DCH) while in a CELL_FACH state, wherein the WTRU has an assigned enhanced radio network temporary identifier (E-RNTI); receiving, from the base station, a cell update confirm message that includes a new assigned E-RNTI; and transmitting an E-DCH transmission to the base station when the WTRU is in the CELL_FACH state and after the WTRU has received the new assigned E-RNTI, wherein when the WTRU is in the CELL_FACH state, the WTRU performs cell reselection except during an E-DCH transmission by the WTRU.
2. The method of claim 1, further comprising: transmitting a preamble transmission; and
receiving and processing, subsequent to the transmission of the preamble transmission, an indication of resources for the E-DCH transmission.
3. The method of claim 2, wherein the cell update message includes a new Cell Radio Network Temporary Identifier (C-RNTI) and a High Speed Downlink Shared Channel (HS-DSCH) Radio Network Transaction Identifier (H-RNTI).
4. A wireless transmit/receive unit (WTRU) comprising:
a transmitter; a receiver; and a processor to:
cause the transmitter to transmit, to a base station, a cell update message, the cell update message including an indication that the WTRU supports communications over an Enhanced Dedicated Channel (E-DCH) while in a CELL_FACH state, wherein the WTRU has an assigned enhanced radio network temporary identifier (E-RNTI);
process a cell update confirm message received from the base station by the receiver, the cell update confirm message including a new assigned E-RNTI; and
after processing the cell update confirm message, cause the WTRU to transmit an E-DCH transmission to the base station, when the WTRU is in the CELL_FACH state and after the WTRU has received the new assigned E-RNTI,
wherein when the WTRU is in the CELL_FACH state, the WTRU performs cell reselection except during an E-DCH transmission by the WTRU.
5. The WTRU of claim 4, wherein the processor:
causes the WTRU to transit, using the transmitter, a preamble transmission; and subsequent to the transmission of the preamble transmission, causes the WTRU to receive, using the receiver, and process an indication of resources for the E-DCH transmission.
6. The WTRU of claim 5, wherein the cell update message includes a new Cell Radio Network Temporary Identifier (C-RNTI) and a High Speed Downlink Shared Channel (HS-DSCH) Radio Network Transaction Identifier (H-RNTI).
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.