摘要:
A method and system for the UE and RNC to reduce transmission latency and potentially prevent loss of PDUs upon a MAC layer reset. UE generation of the status PDU is coupled with the MAC layer reset. The RNC generates a message with a MAC reset indication. Following the MAC layer reset all PDUs stored in the UE MAC layer reordering buffers are flushed to RLC entities and then processed by RLC entities prior to the generation of a PDU status report. The PDU status report provides to the RNC the status of all successfully received PDUs. Upon reception of a PDU status report in the RNC, missing PDUs are realized and retransmitted to the UE.
摘要:
A system and method which improve the performance of a wireless transmission system by intelligent use of the control of the flow of data between a radio network controller (RNC) and a Node B. The system monitors certain criteria and, if necessary, adaptively increases or decreases the data flow between the RNC and the Node B. This improves the performance of the transmission system by allowing retransmitted data, signaling procedures and other data to be successfully received at a faster rate, by minimizing the amount of data buffered in the Node B. Flow control is exerted to reduce buffering in the Node B upon degradation of channel qualities, and prior to a High Speed Downlink Shared Channel (HS-DSCH) handover.
摘要:
A method for multiplexed scheduling of information blocks from multiple sources on a single communication channel divided into multiple address positions. The information block from each source has a repetition period and is divided into a number of segments. The method includes determining the total number of positions on the channel to be scheduled (101); mapping positions in a non-sequential order coresponding to nodes in a binary tree (103); whereby each layer of the binary tree corresponds to a repetition period; ordering the blocks by repetition period, starting with the smallest repetition period; assigning information segments of each block to unassigned positions (106); and marking as assigned all child nodes of the assigned position node in the layer corresponding to the repetition period (107).
摘要:
The present invention allows for effective sharing of the hardware memory (600) of a wireless transmit receive unit (WTRU). The memory (606) will be shared among various buffers (615a-615n) of different entities. More particularly, memory (600) will be shared among the MAC reordering buffers (610a-610n) and the RLC reception. Buffers (615a-615m).
摘要:
A medium access control (MAC) architecture reduces transmission latency for data block retransmissions. A plurality of data blocks are received and temporarily stored in a first memory (815B) (e.g., queue, buffer). The pluralities of data blocks are then transmitted. A determination is made as to whether each of the transmitted data blocks was received successfully or needs to be retransmitted because the data block was not received successfully. Each of the transmitted data blocks that need to be retransmitted is marked and temporarily stored in a second memory (815A) having a higher priority than the first memory (815B). The marked data blocks are retransmitted before data blocks stored in the first memory (815B) location.
摘要:
A wireless communication method system for detecting and correcting transmission errors. The system includes at least one Wireless Transmit/Receive Unit (WTRU) in communication with a Node B. At step 405 the Node B sends a transmission signal (including a protocol data unit (PDU)) to the WTRU. The WTRU generates a Revert Message having a first field and a second field to indicate whether the transmission signal was successfully received at the WTRU. The WTRU transmits the Revert Message to the Node B. The Node B receives the first field (step 410) and the second field (step 420) and determines the contents (steps 415 and 425). The Node B compares the contents of the first field to the contents of the second field (step 430). The Node B resends the transmission signal to the WTRU if the contents of the first and second fields are not logically consistent (step 450).
摘要:
The present invention is a method and system for the User Equipment to perform a series of actions in order to reduce the latency and potentially to prevent loss of packet data unit transmission during the serving HS-DSCH cell change procedure. A new criterion is introduced for the UE generating status report of the PDUs as soon as possible following notification of the cell change indicated by the RRC procedure to more efficiently recover source NODE B buffered data (14). PDU status may be signaled for each radio link controller associated with the HS-DSCH transport channel (20). Furthermore, upon Inter Node B serving HS-DSCH cell change the SRNC may wait for PDU status report before initiating transmission of new data in target cell (26).
摘要:
A Time Dvision Duplex - Radio Local Area Network (TDD-RLAN) for providing concurrent (12) wireless telecommunication service for a plurality of user equipments (UEs), includes at least one base station (Node B) having a transceiver for conducting time division duplex (TDD) code division multiple access (CDMA) wireless communication, at least one controller (RNC) for controlling the communications of a group of base stations, and a Radio Access Network Internet Protocol Gateway (RIP GW) having a Gateway General Packet Radio Service Support Node (GGSN) with access router functions for connection with the Internet.
摘要:
A method for processing a received communication (80) which includes periodic transmissions of a set of information segments. A first transmission of the set of information segments is received and processed to identify each of the segments as valid or invalid (81). The valid segments (82) of the first set are then stored. Where all segments of the set are not stored (83), subsequent transmissions (85) of the set of information segments are received and only those segments not previously stored are processed to identify each such segment as valid or invalid. The valid segments so identified (81) are then stored (82). Subsequent transmissions (85) are repeatedly received unless all segments of the set have been stored.