Method and apparatus for reporting power headroom in carrier aggregation scenario
US9713104B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2012 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Dec 1, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are a method and an apparatus for reporting power headroom in a carrier aggregation context. By applying the technical solutions of the embodiments of the present invention, PHR MAC CE and a corresponding MAC sub-header are determined according to the number of uplink component carriers needing to report power headroom and a type of the power headroom to be reported, and indication information such as length information of the PHR MAC CE, type information of the power headroom, and information about whether the power headroom is virtual power headroom is carried therein, so that a base station can precisely obtain the power headroom of each uplink component carrier. In this way, the problem that the PHR MAC CE format in the current LTE Rel-8/9 is not applicable to an LTE-A system is solved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.