Invention Grant
- Patent Title: Compensation for propagation delay in a wireless communication system
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Application No.: US12988671Application Date: 2009-02-27
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Publication No.: US09614593B2Publication Date: 2017-04-04
- Inventor: David Hammarwall , George Jongren
- Applicant: David Hammarwall , George Jongren
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (Publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (Publ)
- Current Assignee Address: SE Stockholm
- Agency: Patent Portfolio Builders, PLLC
- Priority: EP08155230 20080425; EP08155457 20080430
- International Application: PCT/SE2009/050223 WO 20090227
- International Announcement: WO2009/131521 WO 20091029
- Main IPC: H04B1/06
- IPC: H04B1/06 ; H04B7/00 ; H04B7/04 ; H01Q1/24 ; H01Q3/26 ; H04B17/364

Abstract:
In a first aspect the present invention relates to a method of compensating for propagation delay in a wireless communication system. A first base station is in communication with a first plurality of antenna units which are adapted to be in wireless communication with a first terminal. The first terminal having a terminal antenna. The first plurality of antenna units is spatially separated. The method according to the first aspect comprises the steps of determining relative propagation delay from each of the first plurality of antenna units to the terminal antenna and using the determined propagation delay to establish a delay profile to compensate for propagation delay from each of the antenna units to the first terminal and applying the delay profile to a transmission between the base station and the terminal. In a second aspect the present invention further relates to a system implementing the method according to the first aspect.
Public/Granted literature
- US20110039497A1 Compensation for Propagation Delay in a Wireless Communication System Public/Granted day:2011-02-17
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