Abstract
PROBLEM TO BE SOLVED: To provide techniques for synchronizing sequence numbers so as to re-order packets properly at handover.
SOLUTION: A transmitter ciphers each input packet with a full sequence number. The transmitter generates output packets for the ciphered packets. Each output packet includes a partial sequence number used for re-ordering and derived from the full sequence number. The full sequence number may be incremented for each input packet or each byte of each packet. The partial sequence number may be used as a sequence number for RLC and may be used for re-ordering duplicate detection error correction and/or other functions. A receiver performs the complementary processing re-orders received packets based on the partial sequence number included in each packet and ciphers the received packets using the partial sequence number included in each received packet.
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Technologies
Protocol Stack Signal Processing
Product
Base Station (eNB/gNB)User Equipment (UE/Terminal)
Use Cases
Wireless communication
Services
Transmitting/receiving of data channel
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