Enhanced carrier sensing for multi-channel operation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04L-012/413
H04L-012/26
H04W-074/08
H04W-024/08
H04W-072/00
H04L-001/00
출원번호
US-0605662
(2015-01-26)
등록번호
US-9503339
(2016-11-22)
발명자
/ 주소
Gong, Michelle X.
Stephens, Adrian P.
출원인 / 주소
INTEL CORPORATION
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
In various embodiments, a multi-channel request-to-send and a multi-channel clear-to-send may be used in a wireless communications network to assure that a subsequent multi-channel communications exchange between two devices takes place only over channels that are sensed by both devices as being fre
In various embodiments, a multi-channel request-to-send and a multi-channel clear-to-send may be used in a wireless communications network to assure that a subsequent multi-channel communications exchange between two devices takes place only over channels that are sensed by both devices as being free.
대표청구항▼
1. An apparatus, comprising: a processor;a memory; anda station (STA) comprising logic, at least a portion of which is in hardware, the logic to process a multi-channel request-to-send (MRTS) reserving multiple channels sensed as being free by an access point (AP), the STA comprised among a pluralit
1. An apparatus, comprising: a processor;a memory; anda station (STA) comprising logic, at least a portion of which is in hardware, the logic to process a multi-channel request-to-send (MRTS) reserving multiple channels sensed as being free by an access point (AP), the STA comprised among a plurality of STAs to which the MRTS is addressed, the logic to generate a multi-channel clear-to-send (MCTS) comprising free channel information for a determination of one or more channels to be utilized for one or more multi-user multiple-input multiple-output (MU-MIMO) transmissions of the AP, the MCTS to identify one or more channels sensed as free by the STA, the one or more channels to comprise a subset of the multiple channels sensed as being free by the AP. 2. The apparatus of claim 1, the MRTS addressed to the plurality of STAs using multicast addressing. 3. The apparatus of claim 1, the MRTS to comprise a bitmap to indicate the multiple channels sensed as being free by the AP. 4. The apparatus of claim 1, the MCTS to comprise a bitmap to indicate the one or more channels sensed as free by the STA. 5. The apparatus of claim 1, the MRTS formatted as a control frame. 6. The apparatus of claim 1, the MRTS to comprise a duration field to indicate a time period during which devices other than the plurality of STAs should refrain from transmitting. 7. The apparatus of claim 1, the MRTS transmitted over each of the multiple channels simultaneously. 8. The apparatus of claim 1, comprising at least one radio. 9. The apparatus of claim 8, comprising one or more antennas. 10. At least one non-transitory computer-readable storage medium comprising a set of instructions that, in response to being executed at a station (STA), cause the STA to: receive a multi-channel request-to-send (MRTS) reserving multiple channels sensed as being free by an access point (AP), the STA comprised among a plurality of STAs to which the MRTS is addressed; andtransmit a multi-channel clear-to-send (MCTS) comprising free channel information for a determination of one or more channels to be utilized for one or more multiple-input multiple-output (MU-MIMO) transmissions of the AP, the MCTS to identify one or more channels sensed as free by the STA, the one or more channels to comprise a subset of the multiple channels sensed as being free by the AP. 11. The at least one non-transitory computer-readable storage medium of claim 10, the MRTS addressed to the plurality of STAs using multicast addressing. 12. The at least one non-transitory computer-readable storage medium of claim 10, the MRTS to comprise a bitmap to indicate the multiple channels sensed as being free by the AP. 13. The at least one non-transitory computer-readable storage medium of claim 10, the MCTS to comprise a bitmap to indicate the one or more channels sensed as free by the STA. 14. The at least one non-transitory computer-readable storage medium of claim 10, the MRTS formatted as a control frame. 15. The at least one non-transitory computer-readable storage medium of claim 10, the MRTS to comprise a duration field to indicate a time period during which devices other than the plurality of STAs should refrain from transmitting. 16. The at least one non-transitory computer-readable storage medium of claim 10, the MRTS transmitted over each of the multiple channels simultaneously. 17. The at least one non-transitory computer-readable storage medium of claim 10, comprising instructions that, in response to being executed at the STA, cause the STA to simultaneously transmit the MCTS over each of the one or more channels sensed as free by the STA. 18. A method, comprising: receiving, at a station (STA), a multi-channel request-to-send (MRTS) reserving multiple channels sensed as being free by an access point (AP), the STA comprised among a plurality of STAs to which the MRTS is addressed; andtransmitting a multi-channel clear-to-send (MCTS) comprising free channel information for a determination of one or more channels to be utilized for one or more multiple-input multiple-output (MU-MIMO) transmissions of the AP, the MCTS to identify one or more channels sensed as free by the STA, the one or more channels to comprise a subset of the multiple channels sensed as being free by the AP. 19. The method of claim 18, the MRTS addressed to the plurality of STAs using multicast addressing. 20. The method of claim 18, the MRTS to comprise a bitmap to indicate the multiple channels sensed as being free by the AP. 21. The method of claim 18, the MCTS to comprise a bitmap to indicate the one or more channels sensed as free by the STA. 22. The method of claim 18, the MRTS formatted as a control frame. 23. The method of claim 18, the MRTS to comprise a duration field to indicate a time period during which devices other than the plurality of STAs should refrain from transmitting. 24. The method of claim 18, the MRTS transmitted over each of the multiple channels simultaneously. 25. The method of claim 18, comprising simultaneously transmitting the MCTS over each of the one or more channels sensed as free by the STA.
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이 특허에 인용된 특허 (7)
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Whitehill, Eric A., System and method for efficiently performing two-way ranging to determine the location of a wireless node in a communications network.
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