Abstract
A data transmission method and apparatus are disclosed, where the method includes: determining, by a source base station, first data and a radio air interface protocol sequence number of a data unit used to carry the first data, where the first data includes data that is not acknowledged by a terminal for correct reception during data transmission between the source base station and the terminal; and sending, by the source base station, the first data and the radio air interface protocol sequence number to a target base station; where a core network connected to the target base station is different from a core network connected to the source base station. In this method, the first data and the data unit of the first data that are sent by the source base station to the target base station carry radio air interface sequence numbers. Because the radio air interface sequence numbers and data packets that are correctly received by the terminal previously are sorted based on a same rule and order, after the target base station forwards the data to the terminal, the terminal can correctly sort the received data packets, thereby ensuring that all the received data packets are submitted to an upper layer in sequence.
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SUMMARY
ClaimChart-EP3836598A4-STO
Patent number:EP3836598A4
Claim Chart Type : SEP Claim Chart
Price: 200 €
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.