JP5784778B2

5G,4G

Title

CIPHERING AND RE-ORDERING PACKETS IN WIRELESS COMMUNICATION SYSTEM

Application Number:

JP20140064424

Publication Date:

24-09-2015

Current Assignee:

Family ID:

Application Date:

26-03-2014

Declaring Company:

Publication Country:

US

Priority Date:

26-04-2005

Title

CIPHERING AND RE-ORDERING PACKETS IN WIRELESS COMMUNICATION SYSTEM

Application Number:

JP20140064424

Family ID:

Publication Country:

US

Publication Date:

24-09-2015

Application Date:

26-03-2014

Priority Date:

26-04-2005

Current Assignee:

Declaring Company:

Abstract  Abstract

PROBLEM TO BE SOLVED: To provide techniques for performing ciphering and re-ordering using a single full sequence number.

SOLUTION: A transmitter ciphers input packets to obtain ciphered packets with each input packet being ciphered with a full sequence number. The transmitter generates output packets for the ciphered packets with each output packet including a partial sequence number used for re-ordering and derived from the full sequence number. The full sequence number is incremented for each input packet or each byte of each packet. The partial sequence number is used as a sequence number for RLC and is used for re-ordering duplicate detection error correction and/or other functions. A receiver performs the complementary processing re-orders received packets on the basis of the partial sequence number included in each packet and ciphers the received packets using the partial sequence number included in each received packet.

Note:

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.