WO2017131407A1 - Procédé et appareil de création de champ de signal contenant des informations d'attribution concernant une unité de ressource - Google Patents

Procédé et appareil de création de champ de signal contenant des informations d'attribution concernant une unité de ressource Download PDF

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Publication number
WO2017131407A1
WO2017131407A1 PCT/KR2017/000804 KR2017000804W WO2017131407A1 WO 2017131407 A1 WO2017131407 A1 WO 2017131407A1 KR 2017000804 W KR2017000804 W KR 2017000804W WO 2017131407 A1 WO2017131407 A1 WO 2017131407A1
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WIPO (PCT)
Prior art keywords
index
frequency band
center
allocated
field
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PCT/KR2017/000804
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English (en)
Korean (ko)
Inventor
최진수
임동국
조한규
박은성
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엘지전자 주식회사
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Publication of WO2017131407A1 publication Critical patent/WO2017131407A1/fr

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Definitions

  • the common control field may include an 8-bit index, and the 8-bit index may indicate any one of a plurality of combinations of RUs allocated to a corresponding frequency band.
  • the present specification proposes a signaling scheme in which various kinds of resource units transmitted in the 80 MHz band and higher can be clearly indicated.
  • FIG. 9 shows an example of a trigger frame.
  • the WLAN system may include one or more infrastructure BSSs 100 and 105 (hereinafter, BSS).
  • BSSs 100 and 105 are a set of APs and STAs such as an access point 125 and a STA1 (station 100-1) capable of successfully synchronizing and communicating with each other, and do not indicate a specific area.
  • the BSS 105 may include one or more joinable STAs 105-1 and 105-2 to one AP 130.
  • the HE-SIG-B 740 may be included only when it is a PPDU for a multi-user (MU) as described above.
  • the HE-SIG-A 750 or the HE-SIG-B 760 may include resource allocation information (or virtual resource allocation information) for at least one receiving STA.
  • the user may receive the HE-SIG-A 730 and may be instructed to receive the downlink PPDU based on the HE-SIG-A 730.
  • the STA may perform decoding based on the changed FFT size from the field after the HE-STF 750 and the HE-STF 750.
  • the STA may stop decoding and configure a network allocation vector (NAV).
  • NAV network allocation vector
  • the cyclic prefix (CP) of the HE-STF 750 may have a larger size than the CP of another field, and during this CP period, the STA may perform decoding on the downlink PPDU by changing the FFT size.
  • An RU in which multiple STAs are spatially multiplexed may be any one of 106-RU, 242-RU, 484-RU, and 996-RU.
  • the RU in which four STAs are multiplexed is 106-RU allocated to the rightmost side by '00100 yyy'.
  • the 'yyy' value may indicate that up to eight STAs are spatially multiplexed
  • the 'yyyy' value may indicate up to 16
  • the 'yyyyy' value may indicate that up to 32 STAs are spatially multiplexed.
  • the following example proposes a technique for indicating a new 80 cases through a reserved value / field. Specifically, '000 1 xxxx' is composed of 16 indexes, '011 xxxxx' is composed of 32 indexes, and '111 xxxxx' is composed of 32 indexes. We propose a technique for indicating 80 cases that cannot be indicated.
  • the second index range 1420 need not be exactly the same as the first index range 1410.
  • the second index range 1420 may be defined only for the first index range 1410 indicating a combination of RUs having three or more 52-RUs. That is, since only five indexes such as index '0000 0111', '0000 1011', '0000 1101', '0000 1110', and '0000 1111' include at least three 52-RUs, the second index range is only It may consist only of '0001 0111', '0001 1011', '0001 1101', '0001 1110', and '0001 1111', and the remaining indexes of '0001 xxxx' may be used for a third index range for other purposes. It is possible.
  • the index of the first index range 1710 is one of '00100 yyy' to '01011 yyy'
  • the index of the second index range 1720 is one of '011 00 yyy' to '011 11 yyy'. Is preferably. That is, the first index range 1410 and the second index range 1420 are determined depending on whether the second and third most significant bits ('1') are '1' or at least one '0'.
  • the index '011 00 yyy' indicates that the center 26-RU exists, and the remaining RU combinations except for the center 26-RU may be the same as the combination indicated by the '001 00 yyy'. That is, a combination of 26-RU / 26-RU / 26-RU / 26-RU / 26-RU / 106-RU may be indicated.
  • Partial allocation refers to the case where 26-RU is not allocated on the 20 MHz band and the center band (ie, the first to fourth RU regions and the center band of FIG. 11). Thus, when partial allocation is used, the central 26-RU need not be included.
  • All or part of the second index range 1720 may be interpreted as supporting partial allocation.
  • partial assignment is indicative of a combination of 52-RU / 52-RU / 26-RU / 106-RU and a combination of 106-RU / 26-RU / 52-RU / 52-RU.
  • a combination of 52-RU / 52-RU / hole / 106-RU and 106-RU / hole / 52-RU / 52-RU may be indicated through the second index range 1720.
  • the second RU region 1342 may indicate the center 26-RU.
  • the '001 11 yyy' index should be used to indicate the RU combination of 52-RU / 52-RU / 26-RU / 106-RU.
  • the 8-bit index for the second RU region 1342 may be set to '011 11 yyy'.
  • both 2 / 3rd MSBs are set to '1', it may be indicated that the center 26-RU is not allocated.
  • an 8-bit index will be allocated to the third RU region 1343.
  • the index '001 11 yyy' will be used.
  • the middle RU 2110 when the middle RU 2110 is set to 'hole' in the RU combination indicated by the conventional '0000 1111' index (hereinafter, referred to as' RU combination # 1 '), the conventional'
  • the middle RU 2210 is set to 'hole' in the RU combination indicated by the 00 111 yyy 'index (hereinafter, referred to as' RU combination # 2')
  • the middle RU (in the RU combination indicated by the conventional '01011 yyy' index) 2220) is set to 'hole' (hereinafter 'RU combination # 3')
  • the middle RU 2230 is set to 'hole' in the RU combination indicated by the conventional '10 yyy yy 'index (hereinafter It is preferable that a new index for 'RU combination # 4') be allocated.
  • a wireless device may be an AP or a non-AP station (STA) that may implement the above-described embodiment.
  • the wireless device may correspond to the above-described user or may correspond to a transmission device for transmitting a signal to the user.
  • the non-AP STA 2350 includes a processor 2360, a memory 2370, and an RF unit 2380.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un appareil permettant de signaler une pluralité de combinaisons de ressource (RU) au moyen d'un indice 8 bits et d'une table prédéterminée. L'indice 8 bits peut être inclus dans un champ SIG-B d'un système LAN sans fil. Le schéma proposé indique si une RU centrale est attribuée sur une zone de RU centrale. Plus précisément, une nouvelle plage peut être définie via la conversion d'une valeur binaire d'un indice appartenant à une plage prédéfinie. La plage d'indices nouvellement définie peut indiquer qu'aucune RU central n'est attribuée. La plage d'indices nouvellement définie peut appartenir à un champ réservé.
PCT/KR2017/000804 2016-01-25 2017-01-24 Procédé et appareil de création de champ de signal contenant des informations d'attribution concernant une unité de ressource WO2017131407A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US201662286448P 2016-01-25 2016-01-25
US62/286,448 2016-01-25
US201662302183P 2016-03-02 2016-03-02
US62/302,183 2016-03-02
US201662302812P 2016-03-03 2016-03-03
US62/302,812 2016-03-03
US201662311404P 2016-03-22 2016-03-22
US62/311,404 2016-03-22

Publications (1)

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WO2017131407A1 true WO2017131407A1 (fr) 2017-08-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113133115A (zh) * 2020-01-10 2021-07-16 华为技术有限公司 指示多资源单元Multi-RU合并的方法和装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050136933A1 (en) * 2003-08-08 2005-06-23 Intel Corporation Method and apparatus for transmitting wireless signals on multiple frequency channels in a frequency agile network
US20150139118A1 (en) * 2013-11-19 2015-05-21 Shahrnaz Azizi Master station and method for high-efficiency wi-fi (hew) communication with a minimum ofdma bandwidth unit
WO2015160102A1 (fr) * 2014-04-15 2015-10-22 엘지전자 주식회사 Procede et appareil pour transmettre un bloc de donnees

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US20050136933A1 (en) * 2003-08-08 2005-06-23 Intel Corporation Method and apparatus for transmitting wireless signals on multiple frequency channels in a frequency agile network
US20150139118A1 (en) * 2013-11-19 2015-05-21 Shahrnaz Azizi Master station and method for high-efficiency wi-fi (hew) communication with a minimum ofdma bandwidth unit
WO2015160102A1 (fr) * 2014-04-15 2015-10-22 엘지전자 주식회사 Procede et appareil pour transmettre un bloc de donnees

Non-Patent Citations (2)

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Title
ROBERT STACEY: "Specification Framework for TGax", IEEE 802.11-15/0132R7, 20 July 2015 (2015-07-20), pages 5 - 8 *
SHIWEN HE, PPDU FORMAT FOR IEEE 802.11AJ (45GHZ, 19 May 2015 (2015-05-19), Retrieved from the Internet <URL:https://mentor.ieee.org/802.11/dcn/14/11-14-1082-05-00aj-ppdu-format-for-ieee-802-llaj-45ghz.ppt> *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113133115A (zh) * 2020-01-10 2021-07-16 华为技术有限公司 指示多资源单元Multi-RU合并的方法和装置

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