RU2017114864A - Способ передачи данных в системе беспроводной связи и устройство для его осуществления - Google Patents

Способ передачи данных в системе беспроводной связи и устройство для его осуществления Download PDF

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RU2017114864A
RU2017114864A RU2017114864A RU2017114864A RU2017114864A RU 2017114864 A RU2017114864 A RU 2017114864A RU 2017114864 A RU2017114864 A RU 2017114864A RU 2017114864 A RU2017114864 A RU 2017114864A RU 2017114864 A RU2017114864 A RU 2017114864A
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Дзинйоунг ЧУН
Кисеон РИУ
Дзеонгки КИМ
Дзинсоо ЧОИ
Хангиу ЧО
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ЭлДжи ЭЛЕКТРОНИКС ИНК.
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO systems
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    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
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    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
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    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
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    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
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    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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    • H—ELECTRICITY
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    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
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    • H—ELECTRICITY
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    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
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    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
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    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/10—Streamlined, light-weight or high-speed protocols, e.g. express transfer protocol [XTP] or byte stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
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    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • H—ELECTRICITY
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    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
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    • H—ELECTRICITY
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    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Claims (29)

1. Способ многопользовательской (MU) передачи по нисходящей линии связи (DL) в системе беспроводной локальной сети (WLAN), причем способ передачи в режиме MU по DL содержит этапы, на которых:
генерируют MU физическую протокольную единицу данных (PPDU) DL, включающую в себя физическую преамбулу и поле данных,
причем поле данных включает в себя, по меньшей мере, одну протокольную единицу данных MAC (MPDU), причем упомянутая, по меньшей мере, одна MPDU включает в себя MAC-заголовок и тело кадра MAC, и
причем MAC-заголовок включает в себя информацию указания ACK для передачи в режиме MU по восходящей линии связи (UL) кадра ACK в качестве ответа на данные, передаваемые посредством упомянутого поля данных; и
передают DL MU PPDU.
2. Способ передачи в режиме MU по DL по п. 1, в котором MAC-заголовок включает в себя указатель, указывающий, включена ли информация указания ACK или нет.
3. Способ передачи в режиме MU по DL по п. 2, в котором указатель включают в поле "управление HE", включенное в MAC-заголовок.
4. Способ передачи в режиме MU по DL по п. 3, в котором информация указания ACK включена в поле "управление HE" в MAC-заголовке.
5. Способ передачи в режиме MU по DL по п. 4, в котором информация указания ACK включает в себя информацию выделения частотных ресурсов, информацию уровня схемы модуляции и кодирования (MCS) и информацию длины для UL MU PPDU, несущей кадр ACK, для передачи в режиме MU по UL кадра ACK.
6. Способ передачи в режиме MU по DL по п. 5, в котором информация выделения частотных ресурсов включает в себя значение индекса, указывающее единицу ресурса, выделенную для передачи в режиме MU по UL кадра ACK.
7. Способ передачи в режиме MU по DL по п. 5, в котором информация уровня MCS указывает уровень MCS, применяемый к кадру ACK.
8. Способ передачи в режиме MU по DL по п. 7, в котором уровень MCS, применяемый к кадру ACK, выбирают из предварительно определенного количества самых низких уровней MCS.
9. Способ передачи в режиме MU по DL по п. 8,
в котором информация уровня MCS указывает один из уровней MCS от 0 до 3,
причем уровень 0 MCS указывает модуляцию BPSK и кодирование с кодовой скоростью 1/2, уровень 1 MCS указывает модуляцию QPSK и кодирование с кодовой скоростью 1/2, уровень 2 MCS указывает модуляцию QPSK и кодирование с кодовой скоростью 3/4, и уровень 3 MCS указывает модуляцию 16QAM и кодирование с кодовой скоростью 1/2.
10. Способ передачи в режиме MU по DL по п. 5, в котором информация длины указывает длину UL MU PPDU, измеряемую в символах мультиплексирования с ортогональным частотным разделением (OFDM).
11. Устройство станции (STA) в системе беспроводной локальной сети (WLAN), причем STA содержит:
радиочастотный (RF) блок, выполненный с возможностью передачи и приема беспроводного сигнала; и
процессор, выполненный с возможностью управления RF блоком;
причем процессор дополнительно выполнен с возможностью:
генерировать многопользовательскую (MU) физическую протокольную единицу данных (PPDU) нисходящей линии связи (DL), включающую в себя физическую преамбулу и поле данных, и передавать DL MU PPDU,
причем поле данных включает в себя, по меньшей мере, одну протокольную единицу данных MAC (MPDU), причем упомянутая, по меньшей мере, одна MPDU включает в себя MAC-заголовок и тело кадра MAC, и
причем MAC-заголовок включает в себя информацию указания ACK для передачи в режиме MU по восходящей линии связи (UL) кадра ACK в качестве ответа на данные, передаваемые посредством упомянутого поля данных, и
передавать DL MU PPDU.
12. Устройство STA по п. 11, в котором информация указания ACK включает в себя информацию выделения частотных ресурсов, информацию уровня схемы модуляции и кодирования (MCS) и информацию длины для UL MU PPDU, несущей кадр ACK, для передачи в режиме MU по UL кадра ACK.
13. Устройство STA по п. 12, в котором информация выделения частотных ресурсов включает в себя значение индекса, указывающее единицу ресурса, выделенную для передачи в режиме MU по UL кадра ACK.
14. Устройство STA по п. 12, в котором информация уровня MCS указывает уровень MCS, применяемый к кадру ACK, и
в котором уровень MCS, применяемый к кадру ACK, выбирается из предварительно определенного количества самых низких уровней MCS.
15. Устройство STA по п. 12, в котором информация длины указывает длину UL MU PPDU, измеряемую в символах мультиплексирования с ортогональным частотным разделением (OFDM).
RU2017114864A 2014-10-01 2015-10-01 Способ передачи данных в системе беспроводной связи и устройство для его осуществления RU2680193C2 (ru)

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US201462058112P 2014-10-01 2014-10-01
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US201562186334P 2015-06-29 2015-06-29
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US201562194303P 2015-07-20 2015-07-20
US62/194,303 2015-07-20
PCT/KR2015/010379 WO2016053024A1 (ko) 2014-10-01 2015-10-01 무선 통신 시스템에서 데이터 전송 방법 및 이를 위한 장치

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