Method and apparatus for improving initialization of sidelink duplication reception in a wireless communication system
US10687376B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2019 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Sep 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatuses for improving initialization of sidelink duplication reception in a wireless communication system are disclosed herein. In one method, a User Equipment (UE) receives a first Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU) on a logical channel associated with a sidelink radio bearer (SLRB). The UE initializes a first state variable based on a partial Reordering_Window and a PDCP Sequence Number (SN) of the first received PDCP PDU, wherein the first state variable indicates the PDCP SN of a last PDCP Service Data Unit (SDU) delivered to the upper layers by a PDCP entity created for the SLRB, and the partial Reordering_Window is less than a Reordering_Window. The UE performs a re-ordering procedure for the first PDCP PDU using the initialized first state variable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.