Sercomm Corporation

Sernet (suzhou) Technologies Corporation

Xujing Zhang

Lin Cheng

Fei Zhou

The invention provides a base station and an automatic retransmission scheduling method thereof. The automatic retransmission scheduling method includes the following steps: when at least one first layer of protocol data unit of a first protocol layer constitutes a second layer PDU of a second protocol layer, assigning a retransmission serial number of the second layer PDU according to a serial number of the first layer PDU; sending the second layer PDU to a user equipment; receiving a status report of a first retransmission mechanism of the first protocol layer, and an acknowledgement serial number indicates that receiving of multiple PDUs of the first protocol layer by the UE is acknowledged; comparing the retransmission serial number of the second layer PDU with the ACK serial number, and determining whether to disable retransmission of the second layer PDU based on a second retransmission mechanism.

Base station and automatic retransmission scheduling method thereof

The invention provides a base station and a data retransmission method thereof. The data retransmission method includes the following steps: determining whether at least one data unit is delivered; in response to the at least one data units being undelivered, calculating data sizes corresponding to undelivered data units; determining a resource grant indication according to the data sizes, the resource grant indication being related to radio resources required for resending the undelivered data units; and sending the resource grant indication. In this way, the data units have a higher chance to be completely retransmitted, and signaling transmission can be reduced, thereby reducing transmission delay.

Base station and data retransmission method thereof

A method for P2P communication, for a first base station of a mobile communication system, where a base station interface is established between the first base station and a second base station of the mobile communication system is disclosed. The method comprises obtaining an IP address of a first user equipment and a TEID corresponding to a radio bearer established between the first user equipment and the first base station, and transmitting first routing information to the second base station via the base station interface, wherein the first routing information includes the IP address of the first user equipment, the TEID corresponding to the radio bearer between the first user equipment and the first base station, and an IP address of the first base station, wherein the base station interface does not pass through a core network of the mobile communication system.

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Jiangsu, China

Xujing Zhang