Method and apparatus for short-term feedback in multi-input multi-output communications
US10326512B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2016 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Jul 12, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0479
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present disclosure provide a method and apparatus for multi-input multi-output MIMO communications in a wireless communication network. The method comprises: receiving, from a device, long-term precoding information for the MIMO communication, the long-term precoding information indicating a first group of beams for a first antenna polarization, and a second group of beams for a second antenna polarization (S201); receiving, from the device, short-term precoding information for use in the MIMO communication, the short-term precoding information indicating beams selected respectively from the first group of beams and the second group of beams for different antenna polarizations (S202); constructing a precoding matrix for the MIMO communication according to the long-term precoding information and short-term precoding information (S203); and transmitting data encoded according to the precoding matrix to the device (S204). Embodiments of the present disclosure further provide a method in a receiving side of MIMO, and a corresponding apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.