Method, base station, and user equipment for communicating downlink control information
US10462778B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2018 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Apr 1, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The application pertains to a method for communicating a downlink control signal. A base station maps a physical downlink control channel (PDCCH) sequentially to resource elements for transmitting the PDCCH in each orthogonal frequency division multiplexing (OFDM) symbol according to an order of OFDM symbols used by the PDCCH of a user equipment (UE). The PDCCH is sent to the UE from the base station by using the resource elements. Because the PDCCH is mapped sequentially to resource elements for transmitting the PDCCH in each OFDM symbol according to an order of OFDM symbols used by the PDCCH of the UE, different control channel elements of PDCCHs at different aggregation levels will not include a same PDCCH modulation symbol, thereby ensuring that the UE judges a start position of the PDCCH correctly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.