PDCCH link adaptation in carrier aggregation
US10492192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2015 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Apr 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for improved Physical Downlink Control Channel (PDCCH) Link Adaptation (LA) in carrier aggregation are disclosed. A method of operation of a radio access node includes transmitting multiple control messages to the wireless device via PDCCHs associated with corresponding serving cells of the wireless device, informing the wireless device of data transmissions to be transmitted to the wireless device via Physical Downlink Shared Channels of the corresponding serving cells and concurrently operating multiple Physical Uplink Control Channel (PUCCH) receivers on one serving cell during a Transmit Time Interval during which feedback from the wireless device indicative of reception of the data transmissions is expected, where each PUCCH receiver is capable of receiving a different format PUCCH message if necessary. The method also includes updating an outer loop LA parameter for each of the PDCCHs based on the determined PDCCH transmission status.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.