Abstract
A base station including a transmitting and receiving amplifier for amplifying CDMA signals exchanged with a mobile station; a radio stage connected to the transmitting and receiving amplifier for carrying out D/A conversion of a transmitted signal that undergoes baseband spreading followed by quadrature modulation and for carrying out quasi-coherent detection of a received signal followed by A/D conversion; a baseband signal processor connected with the radio stage for carrying out baseband signal processing of the transmitted signal and the received signal; a transmission interface connected with the baseband signal processor for implementing interface with external channels; and a base station controller for carrying out control such as management of radio channels and establishment and release of the radio channels. The base station communicates with the external channels using ATM cells and with the mobile stations using the CDMA signals by mapping a plurality of logical channels into a plurality of physical channels. The CDMA signals are spreading using two types of spreading code sequences that is a short code and a long code.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 4G | 03/09/2011 | ISLD-201108-002 | NTT DOCOMO INC |
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No | Family Member | |||
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Specification Information
Specification Information
Technologies
Family Information
| All Granted Patents In Patent Family : | ---- |
| All Pending Patents In Patent Family : | ---- |
| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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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 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Information | |||||||||
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Technologies
Channel Arrangement/Coding
Product
Use Cases
Wireless communication
Services
Claim
1. A communication system comprising a first communication apparatus and a second communication apparatus, wherein', 'the first communication apparatus comprises:', 'means for generating signals for a plurality of physical channels; and', 'means for transmitting the signals for the plurality of physical channels over the plurality of physical channels, and', 'the means for generating inserts known pilot symbols only into one of the signals for the plurality of physical channels, and', 'the second communication apparatus comprises:', 'means for receiving the signals for the plurality of physical channels over the plurality of physical channels; and', 'means for carrying out coherent detection for all the plurality of physical channels by using the pilot symbols inserted into one of the signals for the plurality of physical channels, and', 'wherein the means for transmitting makes, when transmitting the signal into which the pilot symbols have been inserted, transmission power of portions into which the pilot symbols have been inserted greater than transmission power of other portions, and wherein', 'the first communication apparatus spreads each of the signals for the plurality of physical channels by using a different spreading code and transmits the spread signal, and', 'the second communication apparatus despreads each of the received signals for the plurality of physical channels by using the different spreading code, and', 'the means for transmitting makes, when transmitting the signal into which the pilot symbols have been inserted, the transmission power of the portions into which the pilot symbols have been inserted n times greater than the transmission power of the other portions, where n is a number of the plurality of physical channels.
2. A communication apparatus comprising:', 'means for generating signals for a plurality of physical channels; and', 'means for transmitting the signals for the plurality of physical channels over the plurality of physical channels,', 'wherein the means for generating inserts known pilot symbols only into a signal for a first channel which is one of the plurality of physical channels, and', 'the means for transmitting does not transmit portions of signals for the channels of the plurality of physical channels other than the first channel, the portions corresponding to portions of the signal for the first channel into which the pilot symbols have been inserted.
3. A communication system comprising a first communication apparatus and a second communication apparatus, wherein', 'the first communication apparatus comprises:', 'means for generating signals for a plurality of physical channels; and', 'means for transmitting the signals for the plurality of physical channels over the plurality of physical channels, and', 'the means for generating inserts transmission power control information only into one of the signals for the plurality of physical channels, and', 'the second communication apparatus comprises:', 'means for receiving the signals for the plurality of physical channels over the plurality of physical channels; and', 'means for carrying out transmission power control for all the plurality of physical channels by using the transmission power control information inserted into one of the signals for the plurality of physical channels.
4. The communication system as claimed in claim 3, wherein the means for transmitting makes, when transmitting the signal into which the transmission power control information have been inserted, transmission power of portions into which the transmission power control information have been inserted greater than transmission power of other portions.
5. The communication system as claimed in claim 4, wherein', 'the first communication apparatus spreads each of the signals for the plurality of physical channels by using a different spreading code and transmits the spread signal, and', 'the second communication apparatus despreads each of the received signals for the plurality of physical channels by using the different spreading code, and', 'the means for transmitting makes, when transmitting the signal into which the transmission power control information have been inserted, the transmission power of the portions into which the transmission power control information have been inserted n times greater than the transmission power of the other portions, where n is a number of the plurality of physical channels.
6. A communication apparatus comprising:', 'means for generating signals for a plurality of physical channels; and', 'means for transmitting the signals for the plurality of physical channels over the plurality of physical channels,', 'wherein the means for generating inserts transmission power control information only into a signal for a first channel which is one of the plurality of physical channels, and', 'the means for transmitting does not transmit portions of signals for the channels of the plurality of physical channels other than the first channel, the portions corresponding to portions of the signal for the first channel into which the transmission power control information has been inserted.
7. A communication apparatus comprising:', 'means for receiving signals for a plurality of physical channels over the plurality of physical channels; and', 'means for carrying out transmission power control for all the plurality of physical channels by using transmission power control information inserted into one of the signals for the plurality of physical channels.
8. A communication apparatus comprising:', 'means for generating signals for a plurality of physical channels; and', 'means for transmitting the signals for the plurality of physical channels over the plurality of physical channels,', 'wherein the means for generating inserts transmission power control information only into one of the signals for the plurality of physical channels, and', 'the means for transmitting makes, when transmitting the signal into which the transmission power control information have been inserted, transmission power of portions into which the transmission power control information have been inserted greater than transmission power of other portions.
9. A communication system comprising a first communication apparatus and a second communication apparatus, wherein', 'the first communication apparatus comprises:', 'means for generating signals for a plurality of physical channels including known pilot symbols;', 'means for spreading the signals for the plurality of physical channels; and', 'means for transmitting the spread signals for the plurality of physical channels over the plurality of physical channels, and', 'the means for spreading spreads, when spreading the signals for the plurality of physical channels, portions of the pilot symbols by using a spreading code common to the plurality of physical channels, and other portions by using a different spreading code for each of the plurality of physical channels, and', 'the second communication apparatus comprises:', 'means for receiving the spread signals for the plurality of physical channels over the plurality of physical channels;', 'means for despreading the spread signals for the plurality of physical channels;', 'means for carrying out coherent detection by using the pilot symbols included in the signals for the plurality of physical channels, and', 'the means for despreading despreads, when despreading the spread signals for the plurality of physical channels, portions of the pilot symbols by using the spreading code common to the plurality of physical channels, and other portions by using the different spreading code for each of the plurality of physical channels
10. A communication apparatus comprising:', 'means for generating signals for a plurality of physical channels including known pilot symbols;', 'means for spreading the signals for the plurality of physical channels; and', 'means for transmitting the spread signals for the plurality of physical channels over the plurality of physical channels,', 'wherein the means for spreading spreads, when spreading the signals for the plurality of physical channels, portions of the pilot symbols by using a spreading code common to the plurality of physical channels, and other portions by using a different spreading code for each of the plurality of physical channels.11. A communication apparatus comprising:', 'means for receiving spread signals for a plurality of physical channels over the plurality of physical channels;', 'means for despreading the spread signals for the plurality of physical channels; and', 'means for carrying out coherent detection by using known pilot symbols included in the signals for the plurality of physical channels,', 'wherein the means for despreading despreads, when despreading the spread signals for the plurality of physical channels, portions of the pilot symbols by using a spreading code common to the plurality of physical channels, and other portions by using a different spreading code for each of the plurality of physical channels.12. A communication system comprising a first communication apparatus and a second communication apparatus, wherein', 'the first communication apparatus comprises:', 'means for generating signals for a plurality of physical channels including transmission power control information;', 'means for spreading the signals for the plurality of physical channels; and', 'means for transmitting the spread signals for the plurality of physical channels over the plurality of physical channels, and', 'the means for spreading spreads, when spreading the signals for the plurality of physical channels, portions of the transmission power control information by using a spreading code common to the plurality of physical channels, and other portions by using a different spreading code for each of the plurality of physical channels, and', 'the second communication apparatus comprises:', 'means for receiving the spread signals for the plurality of physical channels over the plurality of physical channels;', 'means for despreading the spread signals for the plurality of physical channels; and', 'means for carrying out transmission power control by using the transmission power control information included in the signals for the plurality of physical channels, and', 'the means for despreading despreads, when despreading the spread signals for the plurality of physical channels, portions of the transmission power control information by using the spreading code common to the plurality of physical channels, and other portions by using the different spreading code for each of the plurality of physical channels.13. A communication apparatus comprising:', 'means for generating signals for a plurality of physical channels including transmission power control information;', 'means for spreading the signals for the plurality of physical channels; and', 'means for transmitting the spread signal for the plurality of physical channels over the plurality of physical channels,', 'wherein the means for spreading spreads, when spreading the signals for the plurality of physical channels, portions of the transmission power control information by using a spreading code common to the plurality of physical channels, and other portions by using a different spreading code for each of the plurality of physical channels.14. A communication apparatus comprising:', 'means for receiving spread signals for a plurality of physical channels over the plurality of physical channels;', 'means for despreading the spread signals for the plurality of physical channels; and', 'means for carrying out transmission power control by using transmission power control information included in the signals for the plurality of physical channels,', 'wherein the means for despreading despreads, when despreading the spread signals for the plurality of physical channels, portions of the transmission power control information by using a spreading code common to the plurality of physical channels, and other portions by using a different spreading code for each of the plurality of physical channels.']
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ClaimChart-US6782035B1-STO
Patent number:US6782035B1
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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.