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 (e.g., queue, buffer). The plurality 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 needs to be retransmitted is marked and temporarily stored in a second memory having a higher priority than the first memory. The marked data blocks are retransmitted before data blocks stored in the first memory location.
摘要:
A system and method are disclosed for managing packet data units (PDUs) received by a Node B from a radio network controller (RNC) and stored in a buffer of the Node B while awaiting transmission to a user equipment (UE). A purge triggering event with respect to PDUs associated with the UE is detected at the RNC and the RNC transmits a purge message to the Node B requesting a purge of at least a portion of the PDUs associated with the UE from the Node B's buffer. The requested PDUs are then deleted from the Node B's buffer.
摘要:
The present invention relates to efficient recovery of High Speed Downlink Packet Access (HSDPA) data following handover. The present invention discloses a method and system for the UE to perform a serial of actions in order to reduce the latency and potentially prevent loss of PDU transmission during the serving HS-DSCH cell change procedure. A new criterion is introduced for UE generation of the status report of RLC PDU. The UE generates status report of the PDUs as soon as possible following notification of the HS-DSCH cell change indicated by the RRC procedure to more efficiently recover source Node B buffered data. PDU status may be signaled for each AM RLC instance associated with the HS-DSCH transport channel. 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.
摘要:
Methods and apparatus for a radio access network Internet Protocol (RAN IP) gateway. The methods include receiving data in a third generation partnership project (3GPP) wireless format from at least one user equipment (UE). The methods include transmitting the data in internet protocol, IP, formatted packets for routing so as to bypass a core network. The methods further include transmitting authentication, authorization, and accounting, AAA, information related to the at least one UE to the core network using a tunnel.
摘要:
Methods and apparatus for a radio access network Internet Protocol (RAN IP) gateway are described. The methods include receiving data in a third generation partnership project (3GPP) wireless format from at least one user equipment (UE). The methods include routing data in IP formatted packets to bypass a core network. The data may be routed through an internet interface. The methods may include tunneling, at the RAN gateway, authentication, authorization, and accounting (AAA) information related to the at least one UE to the core network.
摘要:
Methods and apparatus for a radio access network Internet Protocol (RAN IP) gateway are described. The methods include receiving data in a third generation partnership project (3GPP) wireless format from at least one user equipment (UE). The methods include routing data in IP formatted packets to bypass a core network. The data may be routed through an internet interface. The methods may include tunneling, at the RAN gateway, authentication, authorization, and accounting (AAA) information related to the at least one UE to the core network.
摘要:
A system and method in accordance with the present invention reduce the amount of data that is stalled in a source Node B after a serving HS-DSCH cell change in a communication system that includes a serving RNC and at least one Node B. In a first embodiment, the RNC temporarily suspends data transmissions from the RNC to the Node B. In a second embodiment, the activation time is used in data scheduling. In a third embodiment, a more robust MCS level is selected. In a fourth embodiment flow control is employed for the data transmitted between the RNC and the Node B.
摘要:
A system and method are disclosed for managing packet data units (PDUs) received by a Node B from a radio network controller (RNC) and stored in a buffer of the Node B while awaiting transmission to a user equipment (UE). A purge triggering event with respect to PDUs associated with the UE is detected at the RNC and the RNC transmits a purge message to the Node B requesting a purge of at least a portion of the PDUs associated with the UE from the Node B's buffer. The requested PDUs are then deleted from the Node B's buffer.