METHOD FOR GENERATING PROPAGATION CHARACTERISTICS OF A MULTIPATH ENVIRONMENT
First Claim
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1. A method, using a positioning module (PS) and a wireless telecommunication network comprising first and second base stations (BS) and first and second mobile terminals (MT), said first terminal comprising a rake receiver, the method comprising:
- storing received signal data (MT_data) generated by the first mobile terminal rake receiver from signals transmitted over the air in a multipath environment and received by first mobile terminal (MT);
storing positioning data (MT_pos) obtained from the positioning module (PS), said positioning data (MT_pos) comprising a plurality of positions of first mobile terminal (MT) with time associated with such position information;
storing base station data obtained from first base station (BS), said base station data comprising first base station identification code (BS_id) and first base station position information (BS_pos);
determining field test data from said received signal data (MT_data), positioning data (MT_data) and base station data (BS_id, BS_pos), such determined field test data comprising;
an estimate of the angle (MT_BS_ang) between the first mobile terminal (MT) antenna orientation and the first base station (BS) antenna orientation,an estimate of the pathloss and the shadowing attenuation of the received signals (path_shad),at least one tap of the received signals (sig_taps), a tap being an information representing an estimate of phase and amplitude of a path of the multipath environment, andan estimate of the first mobile terminal speed (MT_speed); and
generating radio propagation characteristics of the multipath environment for simulation of radio propagation between the second base station and the second mobile terminal, using the determined field test data.
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Abstract
A method, using a positioning module and a wireless telecommunication network comprises first and second base stations and first and second mobile terminals, said first terminal comprising a rake receiver, the method comprising:
- storing received signal data (MT_data) generated by the first mobile terminal rake receiver from signals transmitted over the air in a multipath environment and received by first mobile terminal;
- storing positioning data (MT_pos) obtained from the positioning module, said positioning data (MT_pos) comprising a plurality of positions of first mobile terminal with time associated with such position information;
- storing base station data obtained from first base station, said base station data comprising first base station identification code (BS_id) and first base station position information (BS_pos);
- determining field test data from said received signal data (MT_data), positioning data (MT_data) and base station data (BS_id, BS_pos), such determined field test data comprising:
- an estimate of the angle (MT_BS_ang) between the first mobile terminal antenna orientation and the first base station antenna orientation,
- an estimate of the pathloss and the shadowing attenuation of the received signals (path_shad),
- at least one tap of the received signals (sig_taps), a tap being an information representing an estimate of phase and amplitude of a path of the multipath environment, and
- an estimate of the first mobile terminal speed (MT_speed)
- generating radio propagation characteristics of the multipath environment for simulation of radio propagation between the second base station and the second mobile terminal, using the determined field test data.
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Citations
11 Claims
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1. A method, using a positioning module (PS) and a wireless telecommunication network comprising first and second base stations (BS) and first and second mobile terminals (MT), said first terminal comprising a rake receiver, the method comprising:
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storing received signal data (MT_data) generated by the first mobile terminal rake receiver from signals transmitted over the air in a multipath environment and received by first mobile terminal (MT); storing positioning data (MT_pos) obtained from the positioning module (PS), said positioning data (MT_pos) comprising a plurality of positions of first mobile terminal (MT) with time associated with such position information; storing base station data obtained from first base station (BS), said base station data comprising first base station identification code (BS_id) and first base station position information (BS_pos); determining field test data from said received signal data (MT_data), positioning data (MT_data) and base station data (BS_id, BS_pos), such determined field test data comprising; an estimate of the angle (MT_BS_ang) between the first mobile terminal (MT) antenna orientation and the first base station (BS) antenna orientation, an estimate of the pathloss and the shadowing attenuation of the received signals (path_shad), at least one tap of the received signals (sig_taps), a tap being an information representing an estimate of phase and amplitude of a path of the multipath environment, and an estimate of the first mobile terminal speed (MT_speed); and generating radio propagation characteristics of the multipath environment for simulation of radio propagation between the second base station and the second mobile terminal, using the determined field test data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11)
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10. An apparatus (APP), using a positioning module (PS) and a wireless telecommunication network comprising first and second base stations (BS) and first and second mobile terminals (MT), said first terminal (MT) comprising a rake receiver, said apparatus (APP) comprising:
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a converter (CONV) adapted to determine field test data from; received signal data (MT_data) generated by the first mobile terminal rake receiver from signals transmitted over the air in a multipath environment and received by first mobile terminal; positioning data (MT_pos) obtained from the positioning module, said positioning data (MT_pos) comprising a plurality of positions of first mobile terminal with time associated with such position information; base station data obtained from first base station, said base station data comprising first base station identification code (BS_id) and first base station position information (BS_pos), such determined field test data comprising; an estimate of the angle (MT_BS_ang) between the first mobile terminal (MT) antenna orientation and the first base station (BS) antenna orientation, an estimate of the pathloss and the shadowing attenuation of the received signals (path_shad), at least one of the received signals (sig_taps), a tap being an information representing an estimate of phase and amplitude of a path of the multipath environment, and an estimate of the first mobile terminal speed (MT_speed); and a multipath simulator (SIMU) adapted to generate radio propagation characteristics of the multipath environment for simulation of radio propagation between the second base station and the second mobile terminal, using the determined field test data.
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Specification