Abstract
A method and apparatus for controlling an optimization of handover procedures between universal terrestrial radio access (UTRA) release 6 (R6) cells and UTRA release 7 (R7) cells are disclosed. When a wireless transmit/receive unit (WTRU) is moving between an R6 cell and an R7 cell or between R7 cells a handover is initiated from a source Node-B to a target Node-B. In the R7 cell the enhanced medium access control (MAC) functionality including flexible radio link control (RLC) protocol data unit (PDU) size and high speed MAC (MAC-hs) segmentation and multiplexing of different priority queues are supported. After the handover a MAC layer and/or an RLC layer are reconfigured or reset based on functionality supported by the target Node-B.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 3G | 18/09/2008 | ISLD-200901-001 | INTERDIGITAL INC |
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Specification Information
Specification Information
Technologies
Family Information
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Technologies
Broadcast/Multicast
Product
Use Cases
Wireless communication
Services
Claim
1. A wireless transmit/receive unit (WTRU) comprising:
a radio resource control (RRC) unit; and
a medium access control (MAC) unit comprising:
a hybrid automatic repeat request (HARQ) hard buffer; a re-ordering queue including a re-ordering release timer and an enhanced high speed MAC (MAC-ehs) re-ordering timer;
a reassembly unit; and
a logical channel identifier (LCH-ID) demultiplexing unit, the MAC unit configured to:
receive a MAC-ehs reset message from the RRC unit, wherein the MAC-ehs reset message includes at least one of a downlink high speed MAC (MAC-hs) reset indicator and an indication of MAC-hs configuration;
flush the HARQ soft buffer for all configured HARQ processes;
stop the re-ordering release timer and the MAC-ehs re-ordering timer, wherein the re-ordering queue performs re-ordering of received MAC-ehs protocol data units (PDUs) using at least one variable;
set the timers and the variable to their initial values;
deliver all re-ordering PDUs in the re-ordering queue to the reassembly unit, wherein the reassembly unit performs reassembly of segmented MAC-ehs service data units (SDUs), delivers successfully reassembled MAC-ehs SDUs to the LCH-ID demultiplexing unit, which delivers the complete MAC SDUs to the correct logical channel or MAC flow, discards stored MAC-ehs SDU segments from the reassembly unit; and
flush the re-ordering queue.', 'a radio resource control (RRC) unit; and', 'a medium access control (MAC) unit comprising:', 'a hybrid automatic repeat request (HARQ) hard buffer; a re-ordering queue including a re-ordering release timer and an enhanced high speed MAC (MAC-ehs) re-ordering timer;', 'a reassembly unit; and', 'a logical channel identifier (LCH-ID) demultiplexing unit, the MAC unit configured to:
receive a MAC-ehs reset message from the RRC unit, wherein the MAC-ehs reset message includes at least one of a downlink high speed MAC (MAC-hs) reset indicator and an indication of MAC-hs configuration;
flush the HARQ soft buffer for all configured HARQ processes;
stop the re-ordering release timer and the MAC-ehs re-ordering timer, wherein the re-ordering queue performs re-ordering of received MAC-ehs protocol data units (PDUs) using at least one variable;
set the timers and the variable to their initial values;
deliver all re-ordering PDUs in the re-ordering queue to the reassembly unit, wherein the reassembly unit performs reassembly of segmented MAC-ehs service data units (SDUs), delivers successfully reassembled MAC-ehs SDUs to the LCH-ID demultiplexing unit, which delivers the complete MAC SDUs to the correct logical channel or MAC flow, discards stored MAC-ehs SDU segments from the reassembly unit; and
flush the re-ordering queue.', 'receive a MAC-ehs reset message from the RRC unit, wherein the MAC-ehs reset message includes at least one of a downlink high speed MAC (MAC-hs) reset indicator and an indication of MAC-hs configuration;', 'flush the HARQ soft buffer for all configured HARQ processes;', 'stop the re-ordering release timer and the MAC-ehs re-ordering timer, wherein the re-ordering queue performs re-ordering of received MAC-ehs protocol data units (PDUs) using at least one variable;', 'set the timers and the variable to their initial values;', 'deliver all re-ordering PDUs in the re-ordering queue to the reassembly unit, wherein the reassembly unit performs reassembly of segmented MAC-ehs service data units (SDUs), delivers successfully reassembled MAC-ehs SDUs to the LCH-ID demultiplexing unit, which delivers the complete MAC SDUs to the correct logical channel or MAC flow, discards stored MAC-ehs SDU segments from the reassembly unit; and', 'flush the re-ordering queue.
2. The WTRU of claim 1, wherein the re-ordering queue includes a plurality of re-ordering release timers and a plurality of MAC-ehs re-ordering timers.
3. The WTRU of claim 2, wherein MAC unit is further configured to:
stop all active re-ordering release timers; and
set all re-ordering release timers to their initial values.', 'stop all active re-ordering release timers; and', 'set all re-ordering release timers to their initial values.
4. The WTRU of claim 2, wherein the MAC unit is further configured to:
stop all active reset timers; and
set all active reset times to their initial values.', 'stop all active reset timers; and', 'set all active reset times to their initial values.
5. The WTRU of claim 2, wherein the MAC unit is further configured to:
stop all active re-ordering release timers and set all re-ordering release timers to their initial value; and
stop all active reset timers and set all timers to their initial value.', 'stop all active re-ordering release timers and set all re-ordering release timers to their initial value; and', 'stop all active reset timers and set all timers to their initial value.
6. A method of resetting a medium access control (MAC) unit, the method comprising:
receiving an enhanced high speed MAC (MAC-ehs) reset message from a radio resource control (RRC) unit, wherein the MAC-ehs reset message includes at least one of a downlink high speed MAC (MAC-hs) reset indicator and an indication of a DL MAC-hs configuration;
flushing a hybrid automatic repeat request (HARQ) soft buffer in the MAC unit for all configured HARQ processes;
stopping a re-ordering release timer and a MAC-ehs re-ordering timer located in a re-ordering queue of the MAC unit, wherein the re-ordering queue performs re-ordering of received MAC-ehs protocol data units (PDUs) using at least one variable and includes a plurality of re-ordering release timers and a plurality of MAC-ehs re-ordering timers;
setting the timers and the variable to their initial values;
delivering all re-ordering PDUs in the re-ordering queue to a reassembly unit located in the MAC unit;
the reassembly unit performing reassembly of segmented MAC-ehs service data units (SDUs) and delivering successfully reassembled MAC-ehs SDUs to a logical channel identifier (LCH-ID) demultiplexing unit located in the MAC unit;
the LCH-ID demultiplexing unit delivering the complete MAC SDUs to the correct logical channel or MAC flow;
flushing the re-ordering queue; and
discarding stored MAC-ehs SDU segments from the reassembly unit.', 'receiving an enhanced high speed MAC (MAC-ehs) reset message from a radio resource control (RRC) unit, wherein the MAC-ehs reset message includes at least one of a downlink high speed MAC (MAC-hs) reset indicator and an indication of a DL MAC-hs configuration;', 'flushing a hybrid automatic repeat request (HARQ) soft buffer in the MAC unit for all configured HARQ processes;', 'stopping a re-ordering release timer and a MAC-ehs re-ordering timer located in a re-ordering queue of the MAC unit, wherein the re-ordering queue performs re-ordering of received MAC-ehs protocol data units (PDUs) using at least one variable and includes a plurality of re-ordering release timers and a plurality of MAC-ehs re-ordering timers;', 'setting the timers and the variable to their initial values;', 'delivering all re-ordering PDUs in the re-ordering queue to a reassembly unit located in the MAC unit;', 'the reassembly unit performing reassembly of segmented MAC-ehs service data units (SDUs) and delivering successfully reassembled MAC-ehs SDUs to a logical channel identifier (LCH-ID) demultiplexing unit located in the MAC unit;', 'the LCH-ID demultiplexing unit delivering the complete MAC SDUs to the correct logical channel or MAC flow;', 'flushing the re-ordering queue; and', 'discarding stored MAC-ehs SDU segments from the reassembly unit.
7. The method of claim 6, wherein stopping the re-ordering release timer and the MAC-ehs reordering timer comprises:
stopping all active re-ordering release timers; and
setting all re-ordering release timers to their initial values.', 'stopping all active re-ordering release timers; and', 'setting all re-ordering release timers to their initial values.
8. The method of claim 6, wherein stopping the re-ordering release timer and the MAC-ehs reordering timer comprises:
stopping all active reset timers; and
setting all active reset times to their initial values.', 'stopping all active reset timers; and', 'setting all active reset times to their initial values.', '9. The method of claim 6, wherein stopping the re-ordering release timer and the MAC-ehs reordering timer comprises:
stopping all active re-ordering release timers and set all re-ordering release timers to their initial value; and
stopping all active reset timers and set all timers to their initial value.', 'stopping all active re-ordering release timers and set all re-ordering release timers to their initial value; and', 'stopping all active reset timers and set all timers to their initial value.']
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SUMMARY
ClaimChart-US8705489B2-STO
Patent number:US8705489B2
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