Abstract
A method and apparatus for serving high speed downlink shared channel (HS-DSCH) cell change are disclosed. A wireless transmit/receive unit (WTRU) sends a measurement report to a radio network controller (RNC) when a signal strength of a target cell approaches a signal strength of a source cell. The RNC adds the target cell in an active set and sends pre-loaded HS-DSCH configuration information for the target cell to the WTRU. The WTRU sends another measurement report when a signal strength of the target cell exceeds that of the source cell. The WTRU monitors a high speed shared control channel (HS-SCCH) on the target cell based on the pre-loaded HS-DSCH configuration information and decodes an HS-SCCH transmission. The WTRU determines whether a MAC-hs/ehs reset is required and if so resets a MAC-hs/ehs entity prior to receiving an HS-DSCH transmission from the target cell.
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3G | 22/12/2016 | ISLD-201706-015 | INTERDIGITAL INC |
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3G | 31/10/2019 | ISLD-201909-015 | INTERDIGITAL INC | No | Family Member |
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Claim
1. A method comprising:
receiving an indication of a serving cell change;
when a value for a media access control (MAC) reset indicator in target cell pre-configuration is set to false, determining a value for a transmit power control (TPC) combination index of a current cell and a value for a TPC combination index of the target cell; and
resetting a MAC entity when the value for the TPC combination index of the current cell and the value for the TPC combination index of the target cell are different.
2. The method of claim 1, wherein the indication comprises a target cell high speed downlink shared channel (HS-DSCH) order.
3. The method of claim 1, wherein the MAC reset indicator comprises a serving cell change MAC reset information element.
4. The method of claim 1, wherein the MAC entity comprises a MAC high speed (MAC-hs) entity.
5. The method of claim 1, wherein the MAC entity comprises a MAC enhanced high speed (MAC-ehs) entity.
6. The method of claim 1, further comprising:
when the value for the MAC reset indicator in target cell preconfiguration information is set to true, resetting the MAC entity.
7. The method of claim 1, further comprising:
receiving high speed downlink shared channel (HS-DSCH) preconfiguration information associated with the target cell;
storing the HS-DSCH preconfiguration information; and
resetting the MAC entity based on the HS-DSCH preconfiguration information.
8. A wireless transmit/receive unit (WTRU) comprising:
a processor configured to:
receive an indication of a serving cell change;
when a value for a media access control (MAC) reset indicator in target cell pre-configuration is set to false, determine a value for a transmit power control (TPC) combination index of a current cell and a value for a TPC combination index of the target cell; and
reset a MAC entity when the value for the TPC combination index of the current cell and the value for the TPC combination index of the target cell are different.
9. The WTRU of claim 8, wherein the indication comprises a target cell high speed downlink shared channel (HS-DSCH) order.
10. The WTRU of claim 8, wherein the MAC reset indicator comprises a serving cell change MAC reset information element.
11. The WTRU of claim 8, wherein the MAC entity comprises a MAC high speed (MAC-hs) entity.
12. The WTRU of claim 8, wherein the MAC entity comprises a MAC enhanced high speed (MAC-ehs) entity.
13. The WTRU of claim 8, the processor is configured to:
when the value for the MAC reset indicator in target cell preconfiguration information is set to true, reset the MAC entity.
14. The WTRU of claim 8, wherein the processor is further configured to receive high speed downlink shared channel (HS-DSCH) preconfiguration information associated with the target cell, and the WTRU further comprises a memory configured to store the HS-DSCH preconfiguration information, and the processor is further configured to reset the MAC entity based on the HS-DSCH preconfiguration information.
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