WO2023092339 - DEVICES, METHODS AND COMPUTER PROGRAMS FOR TWO-PART FEEDBACK INFORMATION TRANSMISSION
National phase entry:
Publication Number
WO/2023/092339
Publication Date
01.06.2023
International Application No.
PCT/CN2021/132836
International Filing Date
24.11.2021
Title **
[English]
DEVICES, METHODS AND COMPUTER PROGRAMS FOR TWO-PART FEEDBACK INFORMATION TRANSMISSION
[French]
DISPOSITIFS, PROCÉDÉS ET PROGRAMMES INFORMATIQUES DESTINÉS À UNE TRANSMISSION D'INFORMATIONS DE RÉTROACTION EN DEUX PARTIES
Applicants **
HUAWEI TECHNOLOGIES CO.,LTD.
Huawei Administration Building, Bantian,Longgang District
Shenzhen, Guangdong 518129, CN
Inventors
NASIRI KHORMUJI, Majid
Huawei Technologies Sweden AB, Skalholtsgatan
9, 16440 Kista, SE
QIN, Yi
Huawei Administration Building, Bantian,Longgang District
Shenzhen, Guangdong 518129, CN
LIU, Kunpeng
Huawei Administration Building, Bantian,Longgang District
Shenzhen, Guangdong 518129, CN
POPOVIC, Branislav M.
Huawei Technologies Sweden AB, Skalholtsgatan
9, 16440 Kista, SE
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Drawings | * |
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International Searching Authority |
CNIPA
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| Applicant's Legal Status |
Legal Entity
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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 | 1247 | |
| EPO | Filing, Examination | 7584 | |
| Japan | Filing | 591 | |
| South Korea | Filing | 482 | |
| USA | Filing, Examination | 4510 |
Total: 14414 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
Devices, methods and computer programs for two-part feedback information transmission in wireless communications are disclosed. The invention allows using the two-part feedback information transmission, e.g., for improved downlink multiple-input and multiple-output (MIMO) precoding in time-division duplex (TDD) -based communication systems. The feed-back information transmission allows compensating for adverse effects of incomplete UL-DL reciprocity for DL MIMO precoding caused by mismatched DL and UL channel measurements. The feedback information transmission being two-part allows low overhead for the feedback information.[French]
Des dispositifs, des procédés et des programmes informatiques destinés à une transmission d'informations de rétroaction en deux parties dans des communications sans fil sont divulgués. L'invention permet d'utiliser la transmission d'informations de rétroaction en deux parties, par exemple pour un précodage à entrées multiples-sorties multiples (MIMO) en liaison descendante amélioré dans des systèmes de communication basés sur un duplex à répartition dans le temps (TDD). La transmission d'informations de rétroaction permet de compenser les effets négatifs d'une réciprocité UL-DL incomplète pour un précodage MIMO DL provoqué par des mesures de canal DL et UL inadaptées. La transmission d'informations de rétroaction qui est en deux parties permet un faible surdébit pour les informations de rétroaction.