최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0811087 (2017-11-13) |
등록번호 | US-10257765 (2019-04-09) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 581 |
Methods and systems are described in which a node may cause a plurality of orthogonal frequency division multiplexing (OFDM) symbols to be transmitted. The OFDM symbols may comprise at least a portion of a pilot and/or user data.
1. A system comprising: a first node comprising: a plurality of antennas; andfirst circuitry configured to cause, via at least one of the plurality of antennas and based on a request for user data associated with a second node, wireless orthogonal frequency division multiplexing (OFDM) transmission
1. A system comprising: a first node comprising: a plurality of antennas; andfirst circuitry configured to cause, via at least one of the plurality of antennas and based on a request for user data associated with a second node, wireless orthogonal frequency division multiplexing (OFDM) transmission of: a first OFDM symbol comprising a first portion of a pilot; anda second OFDM symbol comprising at least a portion of the user data and a second portion of the pilot,wherein the pilot comprises at least one pseudorandom sequence, and the pilot is associated with the second node and with a group of nodes that comprises the first node; andthe second node comprising: one or more antennas; andsecond circuitry configured to decode the pilot and the at least the portion of the user data based at least in part on the first OFDM symbol and the second OFDM symbol. 2. The system of claim 1, wherein the at least one pseudorandom sequence is associated with the first node. 3. The system of claim 1, wherein the at least one pseudorandom sequence is associated with the group of nodes that comprises the first node. 4. The system of claim 1, wherein the at least one pseudorandom sequence is associated with the second node. 5. The system of claim 1, wherein the first node comprises a base station and the second node comprises a mobile terminal. 6. The system of claim 1, wherein the first circuitry is further configured to cause wireless OFDM transmission of additional OFDM symbols comprising portions of the pilot that vary amongst the additional OFDM symbols. 7. The system of claim 1, wherein the first circuitry is further configured to cause wireless OFDM transmission of a third OFDM symbol comprising synchronization information. 8. A first node comprising: a plurality of antennas; andcircuitry configured to cause, via at least one of the plurality of antennas and based on a request for user data associated with a second node, wireless orthogonal frequency division multiplexing (OFDM) transmission of: a first OFDM symbol comprising a first portion of a pilot; anda second OFDM symbol comprising at least a portion of the user data and a second portion of the pilot,wherein the pilot comprises at least one pseudorandom sequence, and the pilot is associated with the second node and with a group of nodes that comprises the first node. 9. The first node of claim 8, wherein the at least one pseudorandom sequence is associated with the first node. 10. The first node of claim 8, wherein the at least one pseudorandom sequence is associated with the group of nodes that comprises the first node. 11. The first node of claim 8, wherein the at least one pseudorandom sequence is associated with the second node. 12. The first node of claim 8, wherein the first node comprises a base station and the second node comprises a mobile terminal. 13. The first node of claim 8, wherein the circuitry is further configured to cause wireless OFDM transmission of additional OFDM symbols comprising portions of the pilot that vary amongst the additional OFDM symbols. 14. The first node of claim 8, wherein the circuitry is further configured to cause wireless OFDM transmission of a third OFDM symbol comprising synchronization information. 15. A second node comprising: one or more antennas; andcircuitry configured to: wirelessly transmit a request for user data;wirelessly receive, from a first node, an orthogonal frequency division multiplexing (OFDM) transmission of: a first OFDM symbol comprising a first portion of a pilot; anda second OFDM symbol comprising at least a portion of the user data and a second portion of the pilot,wherein the pilot comprises at least one pseudorandom sequence, and the pilot is associated with the second node and with a group of nodes that comprises the first node; anddecode the pilot and the at least the portion of the user data based at least in part on the first OFDM symbol and the second OFDM symbol. 16. The second node of claim 15, wherein the at least one pseudorandom sequence is associated with the first node. 17. The second node of claim 15, wherein the at least one pseudorandom sequence is associated with the group of nodes that comprises the first node. 18. The second node of claim 15, wherein the at least one pseudorandom sequence is associated with the second node. 19. The second node of claim 15, wherein the first node comprises a base station and the second node comprises a mobile terminal. 20. The second node of claim 15, wherein the OFDM transmission comprises a third OFDM symbol that comprises synchronization information, and the circuitry is configured to use the synchronization information to decode the pilot and the at least the portion of the user data. 21. A method comprising: receiving, by a first node, a request for user data associated with a second node; andcausing, via at least one of a plurality of antennas, wireless orthogonal frequency division multiplexing (OFDM) transmission of: a first OFDM symbol comprising a first portion of a pilot; anda second OFDM symbol comprising at least a portion of the user data and a second portion of the pilot,wherein the pilot comprises at least one pseudorandom sequence, and the pilot is associated with the second node and with a group of nodes that comprises the first node. 22. The method of claim 21, wherein the at least one pseudorandom sequence is associated with the first node. 23. The method of claim 21, wherein the at least one pseudorandom sequence is associated with the group of nodes that comprises the first node. 24. The method of claim 21, wherein the at least one pseudorandom sequence is associated with the second node. 25. The method of claim 21, wherein the first node comprises a base station and the second node comprises a mobile terminal. 26. The method of claim 21, further comprising causing wireless OFDM transmission of additional OFDM symbols comprising portions of the pilot that vary amongst the additional OFDM symbols. 27. The method of claim 21, further comprising causing wireless OFDM transmission of a third OFDM symbol comprising synchronization information. 28. The method of claim 21, further comprising: decoding, by the second node, the pilot and the at least the portion of the user data based at least in part on the first OFDM symbol and the second OFDM symbol. 29. A method comprising: wirelessly transmitting, by a second node, a request for user data;wirelessly receiving, from a first node, an orthogonal frequency division multiplexing (OFDM) transmission of: a first OFDM symbol comprising a first portion of a pilot; anda second OFDM symbol comprising at least a portion of the user data and a second portion of the pilot,wherein the pilot comprises at least one pseudorandom sequence, and the pilot is associated with the second node and with a group of nodes that comprises the first node; anddecoding the pilot and the at least the portion of the user data based at least in part on the first OFDM symbol and the second OFDM symbol. 30. The method of claim 29, wherein the at least one pseudorandom sequence is associated with the first node. 31. The method of claim 29, wherein the at least one pseudorandom sequence is associated with the group of nodes that comprises the first node. 32. The method of claim 29, wherein the at least one pseudorandom sequence is associated with the second node. 33. The method of claim 29, wherein the first node comprises a base station and the second node comprises a mobile terminal. 34. The method of claim 29, wherein the OFDM transmission comprises a third OFDM symbol that comprises synchronization information, and decoding comprises using the synchronization information to decode the pilot and the at least the portion of the user data.
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