Methods and apparatus for compensating for propagation delays in coordinated multi-point transmission
US8638867B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2011 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Dec 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0626
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and techniques for communication using coordinated multi-point transmission. In one embodiment, an apparatus comprises at least one processor and a memory storing a set of computer instructions, configured. The processor is configured to cause the apparatus to determine a linear phase variation between at least first and second transmissions from first and second transmission points based at least in part on a propagation delay difference between the first and second transmissions, and transmit the phase variation information for at least the first and the second transmissions. An apparatus configured to operate as a transmission point in a network receives linear phase variation information indicating phase variation experienced by at least one user equipment resulting from a propagation delay difference between at least the apparatus and a second apparatus operating as a second transmission point and manages transmission so as to control phase variation resulting from the propagation delay difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.