Abstract
A radio communication apparatus for transmitting and receiving modulation signals of a plurality of channels in the same frequency band via a plurality of antennas. A communication method is based on information on electric wave propagation environment corresponding to each antenna of the communication partner and transmission is performed by selecting a transmission method for transmitting modulation signals of channels in the same frequency band from a plurality of antennas or a transmission method for transmitting a modulation signal of one channel from one antenna. Thus it is possible to multiplex a plurality of modulation signals so as to be transmitted and to demultiplex and demodulate the transmitted multiplexed modulation signals at a reception unit thereby improving the data transmission rate.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 4G | 15/07/2009 | ISLD-200907-006 | PANASONIC CORP | No | Family Member | ||||
| 4G | 15/03/2010 | ISLD-201004-003 | PANASONIC CORP | No | Family Member | ||||
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| 4G | 20/07/2014 | ISLD-201410-007 | WI-FI ONE LLC | Yes | Basis Patent | ||||
Specification Information
Specification Information
Technologies
Family Information
| All Granted Patents In Patent Family : | ---- |
| All Pending Patents In Patent Family : | ---- |
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|---|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Number | |||||||
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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S1
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Technologies
Measurement
Product
Use Cases
Wireless communication
Services
Claim
1. A radio transmission apparatus comprising:
a first antenna and a second antenna;
a transmission method determining unit configured, based on received information of an estimated radio-wave propagation environment corresponding to a communication partner, to:
A. cause transmission according to a first transmission method, said first transmission method transmitting a single modulation signal from the first antenna; or
B. cause transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point; and
a modulation signal generator configured to generate the single modulation signal or the plurality of modulation signals according to a transmission method determined in the transmission method determining unit,
wherein the single modulation signal and the plurality of modulation signals contain information indicating the number of modulation signals to multiplex and transmit at the same time.', 'a first antenna and a second antenna;', 'a transmission method determining unit configured, based on received information of an estimated radio-wave propagation environment corresponding to a communication partner, to:
A. cause transmission according to a first transmission method, said first transmission method transmitting a single modulation signal from the first antenna; or
B. cause transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point; and', 'A. cause transmission according to a first transmission method, said first transmission method transmitting a single modulation signal from the first antenna; or', 'B. cause transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point; and', 'a modulation signal generator configured to generate the single modulation signal or the plurality of modulation signals according to a transmission method determined in the transmission method determining unit,', 'wherein the single modulation signal and the plurality of modulation signals contain information indicating the number of modulation signals to multiplex and transmit at the same time.
2. The radio transmission apparatus of claim 1, wherein the information of the radio-wave propagation environment is estimated based on a modulation signal transmitted when a communication starts.
3. The radio transmission apparatus of claim 1,
wherein the first antenna comprises a first plurality of antennas,
the single modulation signal being transmitted from the first plurality of antennas to the identical frequency band at the identical temporal point, and
wherein the second antenna comprises a second plurality of antennas.', 'wherein the first antenna comprises a first plurality of antennas,', 'the single modulation signal being transmitted from the first plurality of antennas to the identical frequency band at the identical temporal point, and', 'wherein the second antenna comprises a second plurality of antennas.
4. A transmission method using a radio communication apparatus comprising a first antenna and a second antenna, the transmission method comprising the steps of:
receiving information of an estimated radio-wave propagation environment from a communication partner; and
then based on the received information of the estimated radio-wave propagation environment:
A. causing transmission according to a first transmission method, said first transmission method transmitting a single modulation signal from the first antenna; or
B. causing transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point; and
in a modulation signal generator, generating the single modulation signal or the plurality of modulation signals according to either the first transmission method or the second transmission method,
wherein the single modulation signal and the plurality of modulation signals contain information indicating the number of modulation signals to multiplex and transmit at the same time.', 'receiving information of an estimated radio-wave propagation environment from a communication partner; and', 'then based on the received information of the estimated radio-wave propagation environment:
A. causing transmission according to a first transmission method, said first transmission method transmitting a single modulation signal from the first antenna; or
B. causing transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point; and', 'A. causing transmission according to a first transmission method, said first transmission method transmitting a single modulation signal from the first antenna; or', 'B. causing transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point; and', 'in a modulation signal generator, generating the single modulation signal or the plurality of modulation signals according to either the first transmission method or the second transmission method,', 'wherein the single modulation signal and the plurality of modulation signals contain information indicating the number of modulation signals to multiplex and transmit at the same time.
5. The transmission method of claim 4, wherein a modulation signal is transmitted when a communication starts and is used by the communication partner to estimate the radio-wave propagation environment.
6. The radio transmission method of claim 4,
wherein the first antenna comprises a first plurality of antennas,
the single modulation signal being transmitted from the first plurality of antennas to the identical frequency band at the identical temporal point, and
wherein the second antenna comprises a second plurality of antennas.', 'wherein the first antenna comprises a first plurality of antennas,', 'the single modulation signal being transmitted from the first plurality of antennas to the identical frequency band at the identical temporal point, and', 'wherein the second antenna comprises a second plurality of antennas.
7. A transmission method using a radio communication apparatus comprising a first antenna and a second antenna, the transmission method comprising the steps of:
receiving information of an estimated radio-wave propagation environment from a communication partner;
then based on the received information of the estimated radio-wave propagation environment:
A. causing transmission according to a first transmission method, said first transmission method transmitting a modulation signal from the first antenna; or
B. causing transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point,
wherein the radio-wave propagation environment is estimated based on a reception signal of a control channel; and
generating the single modulation signal or the plurality of modulation signals according to either the first transmission method or the second transmission method; and
wherein the single modulation signal and the plurality of modulation signals contain information indicating the number of modulation signals to multiplex and transmit at the same time.', 'receiving information of an estimated radio-wave propagation environment from a communication partner;', 'then based on the received information of the estimated radio-wave propagation environment:
A. causing transmission according to a first transmission method, said first transmission method transmitting a modulation signal from the first antenna; or
B. causing transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point,', 'A. causing transmission according to a first transmission method, said first transmission method transmitting a modulation signal from the first antenna; or', 'B. causing transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point,', 'wherein the radio-wave propagation environment is estimated based on a reception signal of a control channel; and', 'generating the single modulation signal or the plurality of modulation signals according to either the first transmission method or the second transmission method; and', 'wherein the single modulation signal and the plurality of modulation signals contain information indicating the number of modulation signals to multiplex and transmit at the same time.', '8. The radio transmission method of claim 7,
wherein the first antenna comprises a first plurality of antennas,
the single modulation signal being transmitted from the first plurality of antennas to the identical frequency band at the identical temporal point, and
wherein the second antenna comprises a second plurality of antennas.', 'wherein the first antenna comprises a first plurality of antennas,', 'the single modulation signal being transmitted from the first plurality of antennas to the identical frequency band at the identical temporal point, and', 'wherein the second antenna comprises a second plurality of antennas.', '9. A transmission method using a radio communication apparatus comprising a first antenna and a second antenna, the transmission method comprising the step of:
based on received information of an estimated radio-wave propagation environment corresponding to a communication partner:
A. causing transmission according to a first transmission method, said first transmission method transmitting a single modulation signal from the first antenna; or
B. causing transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point; and
generating the single modulation signal or the plurality of modulation signals according to either the first transmission method or the second transmission method,
wherein the single modulation signal and the plurality of modulation signals contain information indicating the number of modulation signals to multiplex and transmit at the same time.', 'based on received information of an estimated radio-wave propagation environment corresponding to a communication partner:
A. causing transmission according to a first transmission method, said first transmission method transmitting a single modulation signal from the first antenna; or
B. causing transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point; and', 'A. causing transmission according to a first transmission method, said first transmission method transmitting a single modulation signal from the first antenna; or', 'B. causing transmission according to a second transmission method, said second transmission method transmitting a plurality of modulation signals which include different information from each other to an identical frequency band from the first antenna and the second antenna at an identical temporal point; and', 'generating the single modulation signal or the plurality of modulation signals according to either the first transmission method or the second transmission method,', 'wherein the single modulation signal and the plurality of modulation signals contain information indicating the number of modulation signals to multiplex and transmit at the same time.', '10. The transmission method of claim 9, wherein the signal modulation signal according to the first transmission method for transmitting the single modulation signal is generated when a communication starts.', '11. The radio transmission method of claim 9,
wherein the first antenna comprises a first plurality of antennas,
the single modulation signal being transmitted from the first plurality of antennas to the identical frequency band at the identical temporal point, and
wherein the second antenna comprises a second plurality of antennas.', 'wherein the first antenna comprises a first plurality of antennas,', 'the single modulation signal being transmitted from the first plurality of antennas to the identical frequency band at the identical temporal point, and', 'wherein the second antenna comprises a second plurality of antennas.', '12. A reception apparatus for receiving a signal transmitted by a transmission apparatus using one of a first transmission method and a second transmission method based on received information of an estimated radio-wave propagation environment corresponding to each one of a plurality of antennas of a communication partner, the first transmission method causing transmission of a single modulation signal, and the second transmission method causing transmission of a plurality of modulation signals from the first antenna and a second antenna over an identical frequency band from an identical temporal point, the plurality of modulation signals including different information from each other, and the single modulation signal and the plurality of modulation signals containing information indicating the number of modulation signals to multiplex and transmit at the same time,
the reception apparatus comprising:
a signal processor configured to select one of (i) the single modulation signal from the first antenna or (ii) the plurality of modulation signals which include the different information from each other for transmission to the identical frequency band from the first antenna and the second antenna, the selection being made based on a multiplexed signal included in the signal received by the reception apparatus.', 'the reception apparatus comprising:
a signal processor configured to select one of (i) the single modulation signal from the first antenna or (ii) the plurality of modulation signals which include the different information from each other for transmission to the identical frequency band from the first antenna and the second antenna, the selection being made based on a multiplexed signal included in the signal received by the reception apparatus.', 'a signal processor configured to select one of (i) the single modulation signal from the first antenna or (ii) the plurality of modulation signals which include the different information from each other for transmission to the identical frequency band from the first antenna and the second antenna, the selection being made based on a multiplexed signal included in the signal received by the reception apparatus.', '13. The radio transmission apparatus of claim 12,
wherein the first antenna comprises a first plurality of antennas,
the single modulation signal being transmitted from the first plurality of antennas to the identical frequency band at the identical temporal point, and
wherein the second antenna comprises a second plurality of antennas.', 'wherein the first antenna comprises a first plurality of antennas,', 'the single modulation signal being transmitted from the first plurality of antennas to the identical frequency band at the identical temporal point, and', 'wherein the second antenna comprises a second plurality of antennas.', '14. A radio transmission apparatus comprising:
a transmission method determining unit configured to select one of a first transmission method and a second transmission method based on received information of an estimated radio-wave propagation environment corresponding to a communication partner; and
a modulation signal generator configured to generate a single modulation signal if said transmission method determining unit choose selects said first transmission method, and to generate a plurality of modulation signals which include different information from each other for transmission to an identical frequency band at an identical temporal point, if said transmission method determining unit selects said second transmission method,
wherein the single modulation signal and the plurality of modulation signals contain information indicating the number of modulation signals to multiplex and transmit at the same time.', 'a transmission method determining unit configured to select one of a first transmission method and a second transmission method based on received information of an estimated radio-wave propagation environment corresponding to a communication partner; and', 'a modulation signal generator configured to generate a single modulation signal if said transmission method determining unit choose selects said first transmission method, and to generate a plurality of modulation signals which include different information from each other for transmission to an identical frequency band at an identical temporal point, if said transmission method determining unit selects said second transmission method,', 'wherein the single modulation signal and the plurality of modulation signals contain information indicating the number of modulation signals to multiplex and transmit at the same time.', '15. The radio transmission apparatus of claim 14, wherein the communication partner comprises a first antenna and a second antenna.', '16. The radio transmission apparatus of claim 14, wherein the plurality of modulation signals is generated from a first antenna and a second antenna.']
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SUMMARY
ClaimChart-US7974371B2-STO
Patent number:US7974371B2
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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.