Method and apparatus for selecting a positioning scheme, method and apparatus for controlling a positioning scheme to be selected
US9942714B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2015 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Mar 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method and device for transmission on unlicensed spectrum in a UE and a base station. In view of the problem of DFS constraints and PHICH resource waste that is caused by communication of an uplink synchronous HARQ on unlicensed spectrum, in the present invention, logical information is configured so that PUSCHs transmitted through different sub-frames on different physical carriers form one logical carrier, and PHICH resources are reserved for the logical carrier. As an embodiment, downlink signaling is sent in a sub-frame for sending a PHICH so as to indicate transmission bandwidth for data retransmission. The solution provided in the present invention saves PHICH resources and eliminates the constraints on the DFS by the synchronous HARQ. Besides, the present invention reuses the CA scheme in the existing LTE as much as possible, and has high compatibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.