WO2023051742 - NULL DATA PACKET ANNOUNCEMENT (NDPA) FRAME INDICATION
National phase entry:
Publication Number
WO/2023/051742
Publication Date
06.04.2023
International Application No.
PCT/CN2022/122903
International Filing Date
29.09.2022
Title **
[English]
NULL DATA PACKET ANNOUNCEMENT (NDPA) FRAME INDICATION
[French]
INDICATION DE TRAME D'ANNONCE DE PAQUET DE DONNÉES VIDE (NDPA)
Applicants **
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129, CN
Inventors
MONTEMURRO, Michael
35 Lessard Avenue
Toronto, Ontario M6S 1X6, CA
SUH, Jung Hoon
168 Streamside Crescent
Kanata, Ontario K2W 0A8, CA
ABOUL-MAGD, Osama
53 Stonemeadow Drive
Kanata, Ontario K2M 2K2, CA
MCCANN, Stephen
9 Phillips Close, Rownhams, Southampton
Hampshire Hampshire SO16 8LT, GB
XIN, Yan
1384 Halton Terrace
Kanata, Ontario K2K 2R1, CA
AU, Kwok Shum
Apartment 714, 1047 Canadian Shield Avenue
Ottawa, Ontario K2K 0H4, CA
Priority Data
17/490,414
30.09.2021
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Drawings | * |
| Pages for Publication | * |
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International Searching Authority |
CNIPA
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| Applicant's Legal Status |
Legal Entity
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| * | |
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| Entry into National Phase under |
Chapter I
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| Translation |
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Recalculate
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1297 | |
| EPO | Filing, Examination | 8894 | |
| Japan | Filing | 591 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 2710 |
Total: 14067 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
The present disclosure provides methods and apparatus related to NDPA frame indication. An aspect of the disclosure provides a method. The method includes sending, to one or more stations (STAs), a request for channel state information (CSI). The request includes a null data packet announcement (NDPA) frame including a first field and a second field. The first field indicates presence of the second field, and the second field indicates a variant of the NDPA frame. The method further includes receiving, from the one or more STAs, a CSI feedback response based on the request. In some embodiments, the first field is one of a sounding dialog token field and indicates the presence of the second field via at least two bits. In some embodiments, the first field is a frame control field and indicates the second field via a 4-bit subtype subfield.[French]
La présente divulgation concerne des procédés et un appareil associés à une indication de trame de NDPA. Un aspect de la divulgation concerne un procédé. Le procédé consiste à envoyer, à une ou à plusieurs stations (STA), une demande d'informations d'état de canal (CSI). La demande comprend une trame d'annonce de paquet de données vide (NDPA) comprenant un premier champ et un second champ. Le premier champ indique la présence du second champ, et le second champ indique une variante de la trame de NDPA. Le procédé consiste en outre à recevoir, à partir de la ou des STA, une réponse de rétroaction de CSI sur la base de la demande. Selon certains modes de réalisation, le premier champ est l'un d'un champ de jeton de dialogue de sondage et indique la présence du second champ par l'intermédiaire d'au moins deux bits. Selon certains autres modes de réalisation, le premier champ est un champ de commande de trame et indique le second champ par l'intermédiaire d'un sous-champ de sous-type de 4 bits.