Modified dual symbol rate for uplink mobile communications

Multiplex communications – Communication over free space – Combining or distributing information via frequency channels

Reexamination Certificate

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Details

C370S342000, C370S329000, C455S403000

Reexamination Certificate

active

07808964

ABSTRACT:
The specification and drawings present a new method, system, apparatus and software product for using a new modified dual symbol rate (MDSR) in an uplink direction in mobile communication systems. The communication between the mobile station and the network element may be performed within evolved GSM/EDGE radio access networks. The MDSR can be for example one and a half times a symbol rate of an uplink speech service, e.g., the current GSM/EDGE symbol rate (13/48 MHz) in the mobile communication system, thus the MDSR may be substantially 13/32 MHz or about 405 kHz. The uplink signal with the MDSR may be modulated, e.g., using a quadrature amplitude modulation (QAM), e.g., 16-QAM with 16 states and/or a quadrature phase-shift keying (QPSK, or π/4-QPSK) modulation.

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DSR: 3GPP TSF GERAN #25, GP-051543, Jun. 20, 2005, Source: Nokia.
MDSR: 3GPP TSG GERAN #29, GP-060775, Apr. 24, 2006, Source: Nokia.
Huge WID: 3GPP TSG GERAN #31, GP-061739, Sep. 4, 2006, Source: Nokia, Ericsson.
Redhot WID: 3GPP TSG GERAN #32, GP-062488, Nov. 13, 2006, Source, Nokia, Ericsson.
3GPP TSG GERAN #24 TDpc GP-050910, Apr. 4-8, 2005, Source: Nokia.
3GPP TR 45.912 v0.3.0 Feasibility study for evolved GSM/EDGE Radio Access Network (GERAN). Nov. 7, 2005 GP-052574 (original file corrupted, replaced Jan. 6, 2006).
Karlsson, J.; Heinegard, J., “Interference rejection combining for GSM, ”Universal Personal Communications 1996, 1996 5thIEEE International Conference on, vol. 1, No., pp. 433-437 vol. 1, 29 Se-2 Oct. 1996. Abstract, Figure 1. Equation (3.7).
GP-052610, Agenda Item 7.1.5.5 “Updates for Dual Symbol Rate section of the Feasibility Study on Future GERAN Evolution” 3GPP TSG GERAN#27, Atlanta, USA, Nov. 7-11, 2005, 18 pages.

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