Method and apparatus for performing data processing and data transmission by 3G AE and 3G RE

摘要

A data transmission method and apparatus are disclosed. A 3G AE and a 3G RE are deployed between a sender device and a receiver device, M channels are established between the 3G AE and the 3G RE, and M is larger than or equal to 2. The method includes that, the 3G AE encapsulates data sent by the sender device into N PDUs, and transmits the N PDUs to the 3G RE through the M channels between the 3G AE and the 3G RE; and the 3G RE restores the received PDUs to the data sent by the sender device, and sends the data to the receiver device; where N is larger than or equal to 2, and equal to or different from M.

主权项

1. A data transmission method, wherein a 3rd-Generation (3G) Access Endpoint (AE) and a 3G Relay Endpoint (RE) are deployed between a sender device and a receiver device, M channels are established between the 3G AE and the 3G RE, M is larger than or equal to 2, and the method comprises:
encapsulating, by the 3G AE, data sent by the sender device into N Protocol Data Units (PDUs), and transmitting the N PDUs to the 3G RE through the M channels between the 3G AE and the 3G RE; and restoring, by the 3G RE, the received PDUs to the data sent by the sender device, and sending the data to the receiver device; where N is larger than or equal to 2, and equal to or different from M; wherein the encapsulating, by the 3G AE, the data sent by the sender device into the N PDUs comprises: dividing, by the 3G AE, the data sent by the sender device into N parts, and encapsulating the N parts into the N PDUs; wherein the method further comprises:
when the 3G AE transmits each PDU to the 3G RE, reserving, by the 3G AE, the PDU;when the 3G AE receives, in a predefined period of time, a confirmation signal of the PDU returned by the 3G RE, removing the PDU from all reserved PDUs;when the 3G AE does not receive, in the predefined period of time, the confirmation signal of the PDU returned by the 3G RE, selecting at least one channel from all channels or from other channels except the channel through which the PDU is transmitted, and retransmitting the PDU to the 3G RE through the selected channel; andwhen the 3G RE receives the retransmitted PDU, processing a firstly received PDU, and discard other received PDUs.