High speed downlink shared channel cell change
View Patent ↗In response to initiation of a high speed-downlink shared channel (HS-DSCH) cell change, a reordering buffer of a medium access controller-high speed (MAC-hs) is flushed. A user equipment (UE) for at least one radio link control (RLC) instance mapped to the HS-DSCH generates a status report. The status report indicates missing HS-DSCH packet data units (PDUs).
1. A user equipment (UE) which facilitates a high speed-downlink shared channel (HS-DSCH) cell change, the UE comprising:
circuitry configured to receive a wireless signal, the wireless signal carrying a radio resource control (RRC) request message from a Remote Network Controller (RNC) indicative of the HS-DSCH cell change;
high speed medium access control (MAC-hs) circuitry;
reordering buffers associated with the MAC-hs circuitry;
circuitry configured to flush the reordering buffers in response to receiving the RRC request message for the HS-DSCH cell change, the MAC-hs circuitry further configured to supply information indicative of the reordering buffers having been flushed; and
radio link control (RLC) circuitry configured to autonomously generate status reports in response to the MAC-hs flushing the reordering buffers and send the status reports to the RNC, each of the status reports corresponding to a respective one of acknowledge mode (AM) RLC instances mapped to the HS-DSCH, the status reports indicating sequence numbers (SNs) of AM RLC packet data units (PDUs) that are missed and received by the UE.
2. A method for facilitating a high speed-downlink shared channel (HS-DSCH) cell change by a user equipment (UE), the UE comprising a high speed medium access control (MAC-hs) circuitry, and reordering buffers associated with the MAC-hs, the method comprising:
receiving, with the UE, a wireless signal carrying a radio resource control (RRC) request message from a Remote Network Controller (RNC) indicative of the HS-DSCH cell change;
flushing the reordering buffers in response to receiving the RRC request message for the HS-DSCH cell change;
supplying information, with the MAC-hs circuitry, indicative of the reordering buffers having been flushed; and
autonomously generating status reports with radio link control (RLC) circuitry in response to the flushing of the MAC-hs reordering buffers and sending the status reports to the RNC, each of the status reports corresponding to a respective one of acknowledge mode (AM) RLC instances mapped to the HS-DSCH, the status reports indicating sequence numbers (SNs) of AM RLC packet data units (PDUs) that are missed and received by the UE.
3. A user equipment (UE) which facilitates a high speed-downlink shared channel (HS-DSCH) cell change, the UE comprising:
circuitry configured to receive a wireless signal, the wireless signal carrying a radio resource control (RRC) request message from a Remote Network Controller (RNC) indicative of the HS-DSCH cell change;
high speed medium access control (MAC-hs) circuitry;
reordering buffers associated with the MAC-hs circuitry;
circuitry configured to flush the reordering buffers in response to receiving first information associated with the RRC request message for the HS-DSCH cell change, the MAC-hs circuitry supplying second information indicative of the reordering buffers having been flushed and HS-DSCH packet data units (PDUs) received by the UE; and
circuitry configured to autonomously generate status reports using radio link control (RLC) circuitry in response to the second information and send the status reports to the RNC, the status report corresponding to an acknowledge mode (AM) radio link control (RLC) instance mapped to the HS-DSCH, the status report indicating sequence numbers (SNs) of AM RLC PDUs that are missed and received by the UE.
4. The UE of claim 3 , wherein the circuitry configured to generate status reports is further configured to supply additional status reports, the additional status reports being associated with other AM RLC instances mapped to the HS-DSCH, the additional status reports indicating additional sequence numbers (SNs) of AM RLC PDUs that are missed and received by the UE.
5. A method for facilitating a high speed-downlink shared channel (HS-DSCH) cell change by a user equipment (UE), the UE comprising high speed medium access control (MAC-hs) circuitry, and reordering buffers associated with the MAC-hs, the method comprising:
receiving, with the UE, a wireless signal carrying a radio resource control (RRC) request message from a Remote Network Controller (RNC) indicative of the HS-DSCH cell change;
flushing the reordering buffers in response to receiving first information associated with the RRC request message for the HS-DSCH cell change, the MAC-hs circuitry supplying second information indicative of the reordering buffers having been flushed and HS-DSCH packet data units (PDUs) received by the UE; and
autonomously generating a status report using radio link control (RLC) circuitry, in response to the second information and sending the status reports to the RNC, the status report corresponding to an acknowledge mode (AM) radio link control (RLC) instance mapped to the HS-DSCH, the status report indicating sequence numbers (SNs) of AM RLC PDUs that are missed and received by the UE.
6. The method of claim 5 , further comprising:
generating additional status reports, the additional status reports being associated with other AM RLC instances mapped to the HS-DSCH, the additional status reports indicating additional sequence numbers (SNs) of AM RLC PDUs that are missed and received by the UE.