Abstract
An FDD/CDMA transmission/reception system includes a CDMA transmitter and a CDMA receiver. The CDMA transmitter includes a plurality of transmission antennas signal transmission units for transmitting transmission signals weighted by different values to the respective transmission antennas and pilot signal transmission units for transmitting a plurality of different pilot signals to the respective transmission antennas. The CDMA receiver includes a reception unit for obtaining one received signal from the transmission signals from the plurality of transmission antennas of the CDMA transmitter in consideration of reception quality and a unit for transmitting antenna control signals corresponding to reception power values of the received pilot signals to the CDMA transmitter.
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| 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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Specification Information
Specification Information
Technologies
Family Information
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| All Pending Patents In Patent Family : | ---- |
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| US5886987A | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US5886987A | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US5886987A | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US5886987A | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US6359864B1 | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US6359864B1 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US6359864B1 | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US6359864B1 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| EP0755127A2 | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| EP0755127A2 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| EP0755127A3 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| EP0755127B1 | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| EP0755127B1 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| EP1133074A2 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| EP1133074A3 | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| EP1133074A3 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| EP1133074B1 | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| EP1133074B1 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US2002012333A1 | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US2002012333A1 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US2007104154A1 | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US2007104154A1 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US7830829B2 | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| US7830829B2 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| DE69629633T2 | 3G | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| DE69629633T2 | Not Available | 27/10/2004 | ISLD-200411-001 | NEC CORP |
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Multiple access
Product
Use Cases
Wireless communication
Services
Claim
1. An FDD/CDMA communication apparatus comprising:
a reception device which receives a plurality of different pilot signals assigned to respective transmission antennas contained in at least one counterpart station, each of the pilot signals being combined with a user signal in accordance with a CDMA multiplexing method;
an antenna control signal device which generates antenna control signals indicating reception power values of the received pilot signals based on the received pilot signals; and
a transmitter which transmits the antenna control signals to the at least one counterpart station and controls transmitting power of said respective transmission antennas of said at least one counterpart station.', 'a reception device which receives a plurality of different pilot signals assigned to respective transmission antennas contained in at least one counterpart station, each of the pilot signals being combined with a user signal in accordance with a CDMA multiplexing method;', 'an antenna control signal device which generates antenna control signals indicating reception power values of the received pilot signals based on the received pilot signals; and', 'a transmitter which transmits the antenna control signals to the at least one counterpart station and controls transmitting power of said respective transmission antennas of said at least one counterpart station.
2. A method for transmitting an antenna control signal from a receiving device, the method comprising:
receiving a plurality of different pilot signals from at least one counterpart station, each of the pilot signals being assigned to respective transmission antennas located in the at least one counterpart station of the receiving device and being combined with a user signal in accordance with a CDMA multiplexing method;
generating antenna control signals indicating reception power values of the received pilot signals based on the received pilot signals; and
transmitting the antenna control signals to the at least one counterpart station and controlling transmitting power of said respective transmission antennas of said at least one counterpart station.', 'receiving a plurality of different pilot signals from at least one counterpart station, each of the pilot signals being assigned to respective transmission antennas located in the at least one counterpart station of the receiving device and being combined with a user signal in accordance with a CDMA multiplexing method;', 'generating antenna control signals indicating reception power values of the received pilot signals based on the received pilot signals; and', 'transmitting the antenna control signals to the at least one counterpart station and controlling transmitting power of said respective transmission antennas of said at least one counterpart station.
3. An FDD/CDMA communication apparatus comprising:
a reception device which receives a plurality of different pilot signals assigned to respective transmission antennas contained in at least one counterpart station, each of the pilot signals being combined with a user signal;
an antenna control signal device which generates an antenna control signal for weighting transmission signals from the transmission antennas based on the received pilot signals; and
a transmitter which transmits one or more antenna control signals to the at least one counterpart station and controls transmitting signals from the respective transmission antennas of the counterpart station.', 'a reception device which receives a plurality of different pilot signals assigned to respective transmission antennas contained in at least one counterpart station, each of the pilot signals being combined with a user signal;', 'an antenna control signal device which generates an antenna control signal for weighting transmission signals from the transmission antennas based on the received pilot signals; and', 'a transmitter which transmits one or more antenna control signals to the at least one counterpart station and controls transmitting signals from the respective transmission antennas of the counterpart station.
4. The FDD/CDMA communication apparatus according to claim 3, wherein the user signal is weighted by the antenna control signal and the pilot signals are not weighted by the antenna control signal.
5. The FDD/CDMA communication apparatus according to claim 3, wherein the user signal is spread with a CDMA code before being weighted by the antenna control signal.
6. An FDD/CDMA communication apparatus comprising:
a reception device which receives a plurality of different pilot signals assigned to respective transmission antennas contained in at least one counterpart station, each of pilot signals being combined with a user signal in accordance with a CDMA multiplexing method;
an antenna control signal device which generates an antenna control signal for weighting transmission signals from the transmission antennas based on the received pilot signals; and
a transmitter which transmits one or more antenna control signals to the at least one counterpart station and controls transmitting signals from the respective transmission antennas of the counterpart station.', 'a reception device which receives a plurality of different pilot signals assigned to respective transmission antennas contained in at least one counterpart station, each of pilot signals being combined with a user signal in accordance with a CDMA multiplexing method;', 'an antenna control signal device which generates an antenna control signal for weighting transmission signals from the transmission antennas based on the received pilot signals; and', 'a transmitter which transmits one or more antenna control signals to the at least one counterpart station and controls transmitting signals from the respective transmission antennas of the counterpart station.
7. The FDD/CDMA communication apparatus according to claim 6, wherein the user signal is weighted by the antenna control signal and the pilot signals are not weighted by the antenna control signal.
8. The FDD/CDMA communication apparatus according to claim 6, wherein the user signal is spread with a CDMA code before being weighted by the antenna control signal.
9. An FDD/CDMA method for transmitting an antenna control signal from a receiving device, the method comprising:
receiving a plurality of different pilot signals assigned to respective transmission antennas contained in at least one counterpart station of the receiving device, each of the pilot signals being combined with a user signal;
generating an antenna control signal for weighting transmissions signals from the transmission antennas based on the received pilot signals; and
transmitting one or more antenna control signals to the at least one counterpart station and controlling transmitting signals from the respective transmission antennas of the counterpart station.', 'receiving a plurality of different pilot signals assigned to respective transmission antennas contained in at least one counterpart station of the receiving device, each of the pilot signals being combined with a user signal;', 'generating an antenna control signal for weighting transmissions signals from the transmission antennas based on the received pilot signals; and', 'transmitting one or more antenna control signals to the at least one counterpart station and controlling transmitting signals from the respective transmission antennas of the counterpart station
10. The FDD/CDMA method according to claim 9, wherein the user signal is weighted by the antenna control signal and the pilot signals are not weighted by the antenna control signal
11. The FDD/CDMA method according to claim 9, wherein the user signal is spread with a CDMA code before being weighted by the antenna control signal
12. An FDD/CDMA method for transmitting an antenna control signal from a receiving device, the method comprising:
receiving a plurality of different pilot signals assigned to respective transmission antennas contained in at least one counterpart station of the receiving device, each of the pilot signals being combined with a user signal in accordance with CDMA multiplexing method;
generating an antenna control signal for weighting transmission signals from the transmission antennas based on the received pilot signals; and
transmitting one or more antenna control signals to the at least one counterpart station controlling transmitting signals from the respective transmission antennas of the counterpart station.', 'receiving a plurality of different pilot signals assigned to respective transmission antennas contained in at least one counterpart station of the receiving device, each of the pilot signals being combined with a user signal in accordance with CDMA multiplexing method;', 'generating an antenna control signal for weighting transmission signals from the transmission antennas based on the received pilot signals; and', 'transmitting one or more antenna control signals to the at least one counterpart station controlling transmitting signals from the respective transmission antennas of the counterpart station.13. The FDD/CDMA method according to claim 12, wherein the user signal is weighted by the antenna control signal and the pilot signals are not weighted by the antenna control signal.14. The FDD/CDMA method according to claim 12, wherein the user signal is spread with a CDMA code before being weighted by the antenna control signal.']
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SUMMARY
ClaimChart-US7324470B2-STO
Patent number:US7324470B2
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.