Abstract: A method and apparatus for controlling enhanced dedicated channel (E-DCH) transmissions are disclosed. An enhanced uplink medium access control (MAC-e/es) entity processes a received scheduling grant to calculate a serving grant. The MAC-e/es entity determines whether both a hybrid automatic repeat request (H-ARQ) process for scheduled data and scheduled data are available. If an H-ARQ process for scheduled data and scheduled data are available, the MAC-e/es entity determines whether a serving grant exists. The MAC-e/es entity calculates a remaining power based on maximum allowed power and restricts an E-DCH transport format combination (E-TFC) based on the remaining power. The MAC-e/es entity selects an E-TFC using the serving grant and generates a MAC-e protocol data unit. The MAC-e/es entity may process the received scheduled grant is at each transmission time interval or may store the received scheduled grant in a grant list until there is E-DCH data to transmit.

Abstract: Urgent data is scheduled in a wireless communication system including at least one wireless transmit/receive unit (WTRU) and at least one Node-B. The WTRU includes a re-ordering release timer. The Node-B includes a buffer, a lifespan (or maximum allowed delay) timer and a high speed downlink packet access (HSDPA) scheduler. The HSDPA scheduler determines whether there is at least one protocol data unit (PDU) in the buffer whose lifespan (maximum allowed delay) timer or re-ordering release timer will expire if the PDU is not transmitted in a next N transmission timing interval (TTI), where N is a design parameter. If so, the PDU is treated as urgent data whereby a sequence of WTRUs, (i.e., users), scheduled to receive urgent data is arranged in an order of decreasing priority, and a more conservative modulation and coding scheme (MCS), multiple code transmission and a different redundancy reversion are considered for use.

Abstract: A wireless communication method and apparatus for scheduling data having different priorities for a plurality of wireless transmit/receive units (WTRUs), (i.e., users) is disclosed. The normalized average active throughput for each of the WTRUs is computed. Then, the normalized channel quality for each of the WTRUs is computed based on a reported channel quality indicator (CQI) and the respective normalized average active throughput. A sequence of WTRUs is arranged in an order of decreasing normalized channel quality for each data priority. As much of the data as possible is scheduled for the WTRUs in the order of decreasing normalized channel quality of WTRUs. The scheduling is performed until there are no more physical resources available. Several of the WTRUs can be scheduled in the same transmission timing interval (TTI) if there are enough physical resources.

Abstract: The present invention discloses a method and system for enabling efficient reduction of TFCs in the TFCS to achieve desired transmission, while remaining within desired power and data requirements. Upon the UE transmission power requirement exceeding the maximum or allowable transmission power the MAC shall be informed for subsequent TFC selection of all TFCs that currently exceed this limit. The UE will then chose the TFC with the next lower transmission power requirement and the sequence will continue until an acceptable TFC is determined. The present invention also enables the replacement of the TFCs in the TFCS and advanced determination of non-supported TFCs. The TFCs that require transmission power greater then the maximum or allowed UE transmission power shall be determined continuously in every TTI, not just in TTIs where the maximum power has been exceeded.

Abstract: A method implemented in a wireless communication system including a wireless transmit/receive unit (WTRU), a Node-B and a radio network controller (RNC) for quantizing multiplexed data allowed by grants to closely match a selected enhanced uplink transport format combination (E-TFC) transport block size is disclosed. The amount of scheduled and non-scheduled data allowed to be transmitted is quantized so that the amount of data multiplexed into an enhanced uplink (EU) medium access control (MAC-e) protocol data unit (PDU) more closely matches the selected E-TFC transport block size. In an embodiment, the amount of buffered data allowed to be multiplexed by at least one grant, (a serving grant and/or a non-serving grant), is quantized so that the sum of scheduled and non-scheduled data including MAC header and control information multiplexed into a MAC-e PDU more closely matches the selected E-TFC transport block size.

Abstract: A method implemented in a wireless communication system including a wireless transmit/receive unit (WTRU), a Node-B and a radio network controller (RNC) for quantizing multiplexed data allowed by grants to closely match a selected enhanced uplink transport format combination (E-TFC) transport block size is disclosed. The amount of scheduled and non-scheduled data allowed to be transmitted is quantized so that the amount of data multiplexed into an enhanced uplink (EU) medium access control (MAC-e) protocol data unit (PDU) more closely matches the selected E-TFC transport block size. In an embodiment, the amount of buffered data allowed to be multiplexed by at least one grant, (a serving grant and/or a non-serving grant), is quantized so that the sum of scheduled and non-scheduled data including MAC header and control information multiplexed into a MAC-e PDU more closely matches the selected E-TFC transport block size.

Abstract: A method and apparatus for controlling transmissions of data via an enhanced dedicated channel (E-DCH) are disclosed. A list of available transport format combinations (TFCs) is generated based on a plurality of dedicated channel medium access control (MAC-d) flows. An enhanced uplink medium access control (MAC-e) protocol data unit (PDU) is generated using a TFC which is selected from the list of available TFCs. The MAC-e PDU is forwarded to a hybrid-automatic repeat request (H-ARQ) process unit for transmission. The list of available TFCs is continuously updated by eliminating and recovering TFCs based on remaining E-DCH power, an E-DCH transport format combination set (TFCS), a power offset of a highest priority MAC-d flow that has E-DCH data to transmit, and a gain factor for each TFC.

Abstract: A radio resource control (RRC) message is received by a radio resource control (RRC) device of a user equipment (UE). The RRC message notifies the FDD UE of a high speed dedicated shared channel (HS-DSCH) inter-Node B cell change. A reordering buffers of a medium access controller-high speed (MAC-hs) is flushed in response to the receiving the RRC message. A status report is generated for each acknowledge mode (AM) RLC instance mapped to the HS-DSCH by a radio link control (RLC) device after the MAC-hs flushes the reordering buffer. Each status report indicates missing AM RLC packet data units (PDUs). The RRC device sends a “TRANSPORT CHANNEL RECONFIGURATION COMPLETE” message on a DCCH after the RLC device generates each status report.

Abstract: A medium access control-high speed (MAC-hs) comprises a hybrid automatic repeat request (H-ARQ) device configured to receive data blocks over a wideband-code division multiple access (W-CDMA) high speed-downlink shared channel (HS-DSCH). The H-ARQ device generates an acknowledgement (ACK) or negative acknowledgement (NACK) for each said data block received. Each received data block having a transmission sequence number. The H-ARQ device receives a new transmission instead of a pending retransmission at any time. At least one reordering device has an input configured to receive an output of the H-ARQ device and the at least one reordering device configured to reorder the received data blocks based on each received data block's transmission sequence number (TSN). Received data blocks are immediately forwarded for processing for higher layers when the received data blocks are received in sequence.

Abstract: Receiving multimedia broadcasts/multicast services (MBMS) by a user equipment (UE) comprises when an MBMS service is transmitted as a point-to-point transmission, receiving information associated with the point-to-point transmission of a point-to-point MBMS service. Point-to-point MBMS segments of the point-to-point transmission are received over a dedicated traffic channel in response to the received point-to-point transmission information. When an MBMS service is transmitted as a point-to-multipoint transmission, receiving information associated with the point-to-multipoint transmission of a point-to-multipoint MBMS service. Point-to-multipoint MBMS segments of the point-to-multipoint transmission are received over secondary common control physical channels (S-CCPCHs) in response to the received point-to-multipoint transmission information. The S-CCPCHs originates from a plurality of cells and the transmission of the point-to-multipoint MBMS segments are not synchronized in time between the cells.

Abstract: An enhanced uplink user equipment is in soft handover. A radio network controller selects a primary Node-B out of a plurality of Node-Bs supporting the soft handover. The radio network controller receiving successfully received enhanced uplink data packets from the plurality of Node-Bs. The radio network controller reordered the successfully received enhanced uplink data packets for in-sequence deliver. The primary Node-B sends specified scheduling information to the user equipment that the other Node-Bs does not transmit. At least the primary Node-B transmits acknowledgements and negative acknowledgements to the user equipment.

Abstract: A method and system for detecting radio link (RL) failures between a wireless transmit/receive unit (WTRU) and a Node-B are disclosed. When signaling radio bearers (SRBs) are supported by high speed uplink packet access (HSUPA), an RL failure is recognized based on detection of improper operation of at least one of an absolute grant channel (AGCH), a relative grant channel (RGCH), a hybrid-automatic repeat request (H-ARQ) information channel (HICH), an enhanced uplink dedicated physical control channel (E-DPCCH) and an enhanced uplink dedicated physical data channel (E-DPDCH). When SRBs are supported by high speed downlink packet access (HSDPA), an RL failure is recognized based on detection of improper operation of at least one of a high speed shared control channel (HS-SCCH), a high speed physical downlink shared channel (HS-PDSCH) and a high speed dedicated physical control channel (HS-DPCCH).

Abstract: A method for use by a MAC common channel of an RNC to select a transport format combination (TFC) whereby a candidate set of TFCs is selected, and a TFC is chosen from the set of TFCs according to selection criteria.

Abstract: A high speed-downlink shared channel (HS-DSCH) cell change is initialized. A status report is autonomously generated for at least one radio link control (RLC) instance mapped to the HS-DSCH by a user equipment (UE) in response to the initiation of the HS-DSCH cell change. The status report indicates missing HS-DSCH packet data units (PDUs).

Abstract: A wireless transmit receive unit (WTRU) for a code division multiple access (CDMA) telecommunication system utilizes a plurality of protocol layers including a physical layer and a medium access control (MAC) layer such that the MAC layer provides data to the physical layer via plurality of transport channels (TrCHs). Each TrCH is associated with a set of logical channels. The physical layer receives blocks of data for transport such that the transport blocks (TBs) includes a MAC header and logical channel data for a selected logical channel associated with a given TrCH. Each TB has one of a selected limited finite number of TB bit sizes. The logical channel data for each TB has a bit size evenly divisible by a selected integer N greater than three (3). The MAC header for each TB has a bit size such that the MAC header bit size plus the logical channel data bit size equals one of the TB bit sizes.

Abstract: A reordering buffer of a medium access controller—high speed (MAC-hs) is flushed, in response to a high speed—downlink shared channel (HS-DSCH) cell change. A status report is generated of at least one radio link control (RLC) instance mapped to the HS-DSCH. The status report indicates missing HS-DSCH packet data units (PDUs), in response to the HS-DSCH cell change.

Abstract: A method and system for providing ubiquitous coverage and seamless connectivity for devices which support Internet access via third generation (3G) cellular and IEEE 802.11 wideband local area network (WLAN) technologies, irrespective of which radio access technology is available.

Abstract: A UE system implements dynamic link adaptation by adding or changing control information to notify a receiver which timeslots and codes are currently active and which timeslots should be avoided. The UE provides synchronization such that the receiver knows which timeslots and codes the UE has used to map the coded composite transport channel onto physical channels. The UE attempts to avoid the timeslots which are experiencing transmission difficulties, while attempting to utilize the timeslots which are not experiencing transmission problems.

Abstract: An aggregated medium access control (MAC) frame for use with multiple transmission rates in a wireless communication system includes an aggregated header; at least one MAC protocol data unit (MPDU), the MPDUs being grouped together in the frame by transmission rate of the MPDU; and a separating sequence between each rate group. The aggregated header includes a count field to indicate a number of rates that have been aggregated in the frame and an information group for each rate that has been aggregated in the frame.

Abstract: The present invention achieves power savings by turning off all or some of the baseband processing for codes and timeslots that have not been transmitted due to full or partial DTX. With respect to partial DTX, the transmitted codes and associated timeslots and radio frames within the shortest TTI in the CCTrCH are determined from the received TFCI. Thereafter, the receiver is turned off for the unused codes as indicated by the received TFCI. With respect to full DTX, following TFCI reception, the receiver is turned off for all timeslots within the shortest TTI.