Invention Grant
- Patent Title: Method of data modulation adapted to selected modulation rotational angle
- Patent Title (中): 适用于所选调制旋转角的数据调制方法
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Application No.: US12864307Application Date: 2008-11-11
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Publication No.: US08848683B2Publication Date: 2014-09-30
- Inventor: Miguel Lopez , Stefan Eriksson
- Applicant: Miguel Lopez , Stefan Eriksson
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (Publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (Publ)
- Current Assignee Address: SE Stockholm
- Agency: Coats and Bennett, PLLC
- Priority: WOPCT/SE2008/050116 20080130
- International Application: PCT/SE2008/051291 WO 20081111
- International Announcement: WO2009/096842 WO 20090806
- Main IPC: H04B7/212
- IPC: H04B7/212 ; H04L5/12 ; H04L27/34 ; H04L27/18 ; H04L1/00
Abstract:
In a method, modulator, transmitter and receiver, the modulator of data signals to be transmitted simultaneously to at least two receiving mobile stations in the same transmission time slot is adapted to select rotational angle of a QPSK transmission modulation, such as a hybrid α-QPSK modulation used to modulate the data signals to the at least two mobile stations in response to the capabilities of the mobile stations that share the same transmission slot.
Public/Granted literature
- US20100296597A1 Method of Data Modulation Adapted to Selected Modulation Rotational Angle Public/Granted day:2010-11-25
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