Radio link monitoring in sidelink communications
US11438794B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2020 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Aug 22, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of radio link monitoring (RLM) can include performing a physical sidelink shared channel (PSSCH) transmission over a radio link between a Tx UE and a Rx UE in sidelink communications, receiving a HARQ feedback status corresponding to the PSSCH transmission from a physical layer, incrementing a count of a number of consecutive HARQ failure indications (e.g., represented by HARQ DTX) received for PSSCH transmissions over the radio link between the Tx UE and the Rx UE by 1 when the received HARQ feedback status is a HARQ failure indication, declaring a radio link failure (RLF) for the radio link between the Tx UE and the Rx UE when the count of the number of consecutive HARQ failure indications reaches a threshold, and resetting the count of the number of consecutive HARQ failure indications to 0 when the received HARQ feedback status is not a HARQ failure indication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.