Abstract
A method and apparatus for transmitting and receiving control information in an SC-FDMA system are provided in which different cyclic shift values are generated for different SC-FDMA symbols in one of a slot and a subframe a sequence allocated for CDM of control information is cyclically shifted by the cyclic shift values and a control channel signal including the control information is combined with the cyclically shifted sequences on an SC-FDMA symbol basis and transmitted in the SC-FDMA symbols.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
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Specification Information
Specification Information
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Technologies
Resource configuration
Product
Use Cases
Wireless communication
Services
Claim
1. A method for transmitting control information in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) system, comprising:
generating, by a User Equipment (UE), UE different cyclic shift values for different SC-FDMA symbols in one of a slot and a subframe;
cyclically shifting, by the UE, sequences by the cyclic shift values; and
combining, by the UE, a control channel signal including the control information with the cyclically shifted sequences on an SC-FDMA symbol basis and transmitting the combined control channel signal in the SC-FDMA symbols to a Node B.', 'generating, by a User Equipment (UE), UE different cyclic shift values for different SC-FDMA symbols in one of a slot and a subframe;', 'cyclically shifting, by the UE, sequences by the cyclic shift values; and', 'combining, by the UE, a control channel signal including the control information with the cyclically shifted sequences on an SC-FDMA symbol basis and transmitting the combined control channel signal in the SC-FDMA symbols to a Node B.
2. The method of claim 1, wherein a combination of the cyclic shift values is different for each cell.
3. The method of claim 1, wherein a combination of the cyclic shift values is different for at least one of each cell and each User Equipment (UE).
4. The method of claim 1, wherein the sequences are cell-specific Zadoff-Chu (ZC) sequences.
5. The method of claim 1, wherein the combining and transmission comprises changing the phases of as many control symbols carrying the control information as the number of the SC-FDMA symbols according to the phases of the cyclically shifted sequences and transmitting the phase-changed control symbols.
6. A method for receiving control information in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) system, comprising:
receiving, by a Node B, a control channel signal including control information from a User Equipment (UE);
generating, by the Node B, different cyclic shift values for different SC-FDMA symbols in one of a slot and a subframe;
cyclically shifting, by the Node B, sequences by on an SC-FDMA symbol basis by different cyclic shift values for different SC-FDMA symbols in one of a slot and a subframe; and
acquiring, by the Node B, the control information by demultiplexing the received control channel signal using conjugate sequences of the cyclically shifted sequences.', 'receiving, by a Node B, a control channel signal including control information from a User Equipment (UE);', 'generating, by the Node B, different cyclic shift values for different SC-FDMA symbols in one of a slot and a subframe;', 'cyclically shifting, by the Node B, sequences by on an SC-FDMA symbol basis by different cyclic shift values for different SC-FDMA symbols in one of a slot and a subframe; and', 'acquiring, by the Node B, the control information by demultiplexing the received control channel signal using conjugate sequences of the cyclically shifted sequences.
7. The method of claim 6, wherein a combination of the cyclic shift values is different for each cell.
8. The method of claim 6, wherein a combination of the cyclic shift values is different for at least one of each cell and each User Equipment (UE).
9. The method of claim 6, wherein the sequences are cell-specific Zadoff-Chu (ZC) sequences
10. The method of claim 6, wherein the acquisition comprises changing the phases of as many control symbols carrying the control information as the number of the SC-FDMA symbols according to the phases of the conjugate sequences
11. An apparatus for transmitting control information in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) system, comprising:
a control information generator for generating control information;
a sequence generator for generating sequences;
a randomizer for cyclically shifting the sequences by different cyclic shift values to be used for different SC-FDMA symbols in one of a slot and a subframe; and
a transmitter for combining a control channel signal including the control information with the cyclically shifted sequences on an SC-FDMA symbol basis and transmitting the combined control channel signal to a Node B.', 'a control information generator for generating control information;', 'a sequence generator for generating sequences;', 'a randomizer for cyclically shifting the sequences by different cyclic shift values to be used for different SC-FDMA symbols in one of a slot and a subframe; and', 'a transmitter for combining a control channel signal including the control information with the cyclically shifted sequences on an SC-FDMA symbol basis and transmitting the combined control channel signal to a Node B
12. The apparatus of claim 11, wherein a combination of the cyclic shift values is different for each cell
13. The apparatus of claim 11, wherein a combination of the cyclic shift values is different for at least one of each cell and each User Equipment (UE)
14. The apparatus of claim 11, wherein the sequences are cell-specific Zadoff-Chu (ZC) sequences
15. The apparatus of claim 11, wherein the transmitter changes the phases of as many control symbols carrying the control information as the number of the SC-FDMA symbols according to the phase values of the cyclically shifted sequences
16. The apparatus of claim 11, further comprising a pilot signal generator for generating and transmitting a pilot signal in predetermined SC-FDMA symbols of the one of the slot and the subframe by applying cell-specific random time-domain cyclic shift values to the pilot signal
17. An apparatus for receiving control information in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) system, comprising:
a receiver for receiving a control channel signal including control information from a User Equipment (UE); and
a control channel signal receiver for cyclically shifting sequences on an SC-FDMA symbol basis by different cyclic shift values for different SC-FDMA symbols in one of a slot and a subframe, and acquiring the control information by demultiplexing the control channel signal using conjugate sequences of the cyclically shifted sequences.', 'a receiver for receiving a control channel signal including control information from a User Equipment (UE); and', 'a control channel signal receiver for cyclically shifting sequences on an SC-FDMA symbol basis by different cyclic shift values for different SC-FDMA symbols in one of a slot and a subframe, and acquiring the control information by demultiplexing the control channel signal using conjugate sequences of the cyclically shifted sequences
18. The apparatus of claim 17, wherein a combination of the cyclic shift values is different for each cell
19. The apparatus of claim 17, wherein a combination of the cyclic shift values is different for at least one of each cell and each User Equipment (UE).
20. The apparatus of claim 17, wherein the sequences are cell-specific Zadoff-Chu (ZC) sequences.
21. The apparatus of claim 17, further comprising a pilot receiver for receiving a pilot signal to which cell-specific random time-domain cyclic shift values are applied, in predetermined SC-FDMA symbols of the one of the slot and the subframe.
22. An apparatus for transmitting control information in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) system, comprising:
a control channel signal generator for generating a control channel signal including control information;
a sequence generator for generating sequences;
a randomizer for generating different phase values to be used for different SC-FDMA symbols in one of a slot and a subframe and rotating the phases of the sequences by the phase values, a combination of the phase values being at least one of User Equipment (UE)-specific and cell-specific; and
a transmitter for combining the control channel signal with the phase-rotated sequences on an SC-FDMA symbol basis and transmitting the combined control channel signal.', 'a control channel signal generator for generating a control channel signal including control information;', 'a sequence generator for generating sequences;', 'a randomizer for generating different phase values to be used for different SC-FDMA symbols in one of a slot and a subframe and rotating the phases of the sequences by the phase values, a combination of the phase values being at least one of User Equipment (UE)-specific and cell-specific; and', 'a transmitter for combining the control channel signal with the phase-rotated sequences on an SC-FDMA symbol basis and transmitting the combined control channel signal.
23. A method for transmitting control information in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) system, comprising:
generating, by a User Equipment (UE), different cyclic shift values for different SC-FDMA symbols in a subframe;
cyclically shifting, by the UE, a sequence allocated for Code Division Multiplexing (CDM) of control information by the cyclic shift values; and
multiplying, by the UE, a control channel signal including the control information by the cyclically shifted sequences on an SC-FDMA symbol basis and transmitting the multiplied control channel signal in the SC-FDMA symbols to a Node B.', 'generating, by a User Equipment (UE), different cyclic shift values for different SC-FDMA symbols in a subframe;', 'cyclically shifting, by the UE, a sequence allocated for Code Division Multiplexing (CDM) of control information by the cyclic shift values; and', 'multiplying, by the UE, a control channel signal including the control information by the cyclically shifted sequences on an SC-FDMA symbol basis and transmitting the multiplied control channel signal in the SC-FDMA symbols to a Node B.
24. A method for receiving control information in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) system, comprising:
generating, by a Node B, different cyclic shift values for different SC-FDMA symbols in a subframe;
multiplying, by the Node B, a received control channel signal by a conjugate sequence of a sequence allocated for Code Division Multiplexing (CDM) of control information; and
acquiring, by the Node B, the control information by cyclically shifting the multiplied control channel signal by the cyclic shift values on an SC-FDMA symbol basis.', 'generating, by a Node B, different cyclic shift values for different SC-FDMA symbols in a subframe;', 'multiplying, by the Node B, a received control channel signal by a conjugate sequence of a sequence allocated for Code Division Multiplexing (CDM) of control information; and', 'acquiring, by the Node B, the control information by cyclically shifting the multiplied control channel signal by the cyclic shift values on an SC-FDMA symbol basis.
25. An apparatus for transmitting control information in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) system, comprising:
a control information generator for generating control information;
a sequence generator for generating a sequence allocated for Code Division Multiplexing (CDM) of the control information;
a randomizer for cyclically shifting the sequence by different cyclic shift values to be used for different SC-FDMA symbols in a subframe; and
a multiplier for multiplying the control information by the cyclically shifted sequences on an SC-FDMA symbol basis.', 'a control information generator for generating control information;', 'a sequence generator for generating a sequence allocated for Code Division Multiplexing (CDM) of the control information;', 'a randomizer for cyclically shifting the sequence by different cyclic shift values to be used for different SC-FDMA symbols in a subframe; and', 'a multiplier for multiplying the control information by the cyclically shifted sequences on an SC-FDMA symbol basis.
26. An apparatus for receiving control information in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) system, comprising:
a receiver for receiving a control channel signal including control information from a User Equipment (UE); and
a control channel signal receiver for multiplying the received control channel signal by a conjugate sequence of a sequence allocated for Code Division Multiplexing (CDM) of control information, and acquiring the received control information by cyclically shifting the multiplied control channel signal by different cyclic shift values for different SC-FDMA symbols in a subframe on an SC-FDMA symbol basis.', 'a receiver for receiving a control channel signal including control information from a User Equipment (UE); and', 'a control channel signal receiver for multiplying the received control channel signal by a conjugate sequence of a sequence allocated for Code Division Multiplexing (CDM) of control information, and acquiring the received control information by cyclically shifting the multiplied control channel signal by different cyclic shift values for different SC-FDMA symbols in a subframe on an SC-FDMA symbol basis.']
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ClaimChart-US8238320B2-STO
Patent number:US8238320B2
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