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公开(公告)号：US20240372680A1
公开(公告)日：2024-11-07
申请号：US18774677
申请日：2024-07-16
Inventor： ROJAN CHITRAKAR , LEI HUANG , YOSHIO URABE
Abstract: The present disclosure provides a transmission apparatus that comprises a first payload generator configured to generate payload of a packet of a first signal type; a second payload generator configured to generate payload of a packet of a second signal type; a packet scheduler that controls the transmission timings of the first and the second packet; and a transmitter which, in operation, transmits, under the timing control of the packet scheduler, the packet of the first signal type followed by the packet of the second signal type.
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公开(公告)号：US20210337558A1
公开(公告)日：2021-10-28
申请号：US17365810
申请日：2021-07-01
Inventor： ROJAN CHITRAKAR , LEI HUANG , YOSHIO URABE
Abstract: The present disclosure provides a transmission apparatus that comprises a first payload generator configured to generate payload of a packet of a first signal type; a second payload generator configured to generate payload of a packet of a second signal type; a packet scheduler that controls the transmission timings of the first and the second packet; and a transmitter which, in operation, transmits, under the timing control of the packet scheduler, the packet of the first signal type followed by the packet of the second signal type.
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公开(公告)号：US20200322105A1
公开(公告)日：2020-10-08
申请号：US16304030
申请日：2017-07-04
Inventor： ROJAN CHITRAKAR , LEI HUANG , YOSHIO URABE
IPC: H04L5/00 , H04B7/0452 , H04L1/18
Abstract: A transmission apparatus of the present disclosure comprises a transmitter that transmits a Trigger Frame for allocating resources for Uplink Multi User (UL MU) transmission, the Trigger Frame comprising a common information field that includes a type subfield indicating one of a plurality of trigger types, wherein the plurality of trigger types includes a first trigger type indicating a basic trigger used for soliciting any type of response frame from a recipient terminal station a second trigger type indicating a specific trigger used for soliciting a specific type of UL MU response frame from a plurality of terminal stations; and a receiver that receives the specific type of UL MU response frame from the plurality of terminal stations when the type subfield indicates the second trigger type.
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公开(公告)号：US20200245137A1
公开(公告)日：2020-07-30
申请号：US16614821
申请日：2018-04-19
Inventor： ROJAN CHITRAKAR , LEI HUANG , YOSHIO URABE
Abstract: The present disclosure provides a communication apparatus comprising a cryptographic circuitry which, in operation, uses a shared cryptographic secret Key and a cryptographic salt to generate a cryptographically encoded Message Integrity Code (MIC) that is computed over the address field of a Wake Up Radio (WUR) frame; and a transmission signal generator which, in operation, generates a secure WUR signal by replacing the address field of the WUR frame with the MIC; and a transmitter which, in operation, transmits the secure WUR signal.
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公开(公告)号：US20200178178A1
公开(公告)日：2020-06-04
申请号：US16637714
申请日：2018-08-07
Inventor： LEI HUANG , YOSHIO URABE , ROJAN CHITRAKAR
IPC: H04W52/02
Abstract: A communication apparatus comprises primary connectivity radio (PCR) circuitry which, in operation, exchanges a wake up radio (WUR) mode setup frame with a communication partner apparatus in awake state; and wake up radio (WUR) circuitry which, in operation, receives a wake-up frame from the communication partner apparatus, wherein upon successful completion of the WUR mode setup frame exchange in mode other than WUR mode, the communication apparatus enters the WUR mode in which the WUR circuitry is in state to receive a WUR frame, and wherein upon receiving the wake-up frame by the WUR circuitry in the WUR mode, the PCR circuitry changes current state to the awake state.
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Patent Agency Ranking
16.发明公开公开(公告)号：US20230319902A1
公开(公告)日：2023-10-05
申请号：US18330848
申请日：2023-06-07
Inventor： LEI HUANG , ROJAN CHITRAKAR , YOSHIO URABE , ISAMU YOSHII
CPC classification number: H04W74/085 , H04L5/0007 , H04W74/004 , H04W76/11 , H04W72/0446 , H04W74/0833 , H04L5/0091 , H04W72/21
Abstract: An communication apparatus of the present disclosure comprises a receiver that receives a Trigger frame for allocating resource units (RUs) for random access and another frame including Random Access parameter element that comprises a first field indicating an OFDMA contention window (OCW) minimum value (OCWmin) and a second field indicating an OCW maximum value (OCWmax); and control circuitry that controls Uplink OFDMA-based Random Access (UORA) procedure using the OCWmin and the OCWmax.
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公开(公告)号：US20230292361A1
公开(公告)日：2023-09-14
申请号：US18320011
申请日：2023-05-18
Inventor： TAKASHI IWAI , YOSHIO URABE , TOMOHUMI TAKATA
CPC classification number: H04W74/006 , H04W74/02 , H04W84/12
Abstract: In an AP, a Trigger frame generator generates a trigger signal instructing an uplink signal transmission, the trigger signal including a terminal information field that includes a terminal ID subfield and a resource unit allocation information subfield, and a radio transmitter/receiver transmits the trigger signal. In a case where the trigger signal includes a first terminal information field specifying one or more contiguous resource units for random access, the Trigger frame generator sets an unused ID that is not to be used as a terminal ID in the first terminal information field.
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公开(公告)号：US20230283439A1
公开(公告)日：2023-09-07
申请号：US18315372
申请日：2023-05-10
Inventor： ROJAN CHITRAKAR , LEI HUANG , YOSHIO URABE
CPC classification number: H04L5/0053 , H04L5/0007 , H04W48/12 , H04W52/0229 , H04W72/0446 , H04W72/12 , H04L27/2602 , H04L27/2603 , H04L27/2613 , H04L27/2601 , H04W84/12
Abstract: The present disclosure provides a transmission apparatus that comprises a first payload generator configured to generate payload of a packet of a first signal type; a second payload generator configured to generate payload of a packet of a second signal type; a packet scheduler that controls the transmission timings of the first and the second packet; and a transmitter which, in operation, transmits, under the timing control of the packet scheduler, the packet of the first signal type followed by the packet of the second signal type.
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公开(公告)号：US20220166573A1
公开(公告)日：2022-05-26
申请号：US17543455
申请日：2021-12-06
Inventor： ROJAN CHITRAKAR , LEI HUANG , YOSHIO URABE
IPC: H04L5/00 , H04B7/0452 , H04L1/18
Abstract: A transmission apparatus includes a transmitter and a receiver. The transmitter transmits a Trigger Frame for allocating resources for Uplink Multi User (UL MU) transmission, the Trigger Frame comprising a common information field that includes a type subfield indicating one of a plurality of trigger types, wherein the plurality of trigger types includes a first trigger type, a second trigger type and a third trigger type, the first trigger type indicating a basic trigger, the second trigger type indicating multi-user block ack request, and the third trigger type indicating a specific trigger used for soliciting a specific type of UL MU response frame from a plurality of terminal stations. The receiver, responsive to the type subfield indicating the third trigger type, receives the specific type of UL MU response frame from the plurality of terminal station.
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公开(公告)号：US20210297176A1
公开(公告)日：2021-09-23
申请号：US17342277
申请日：2021-06-08
Inventor： LEI HUANG , YOSHIO URABE , ROJAN CHITRAKAR
Abstract: A communication apparatus of the present disclosure includes a receiver which, in operation, receives a signal that includes a non-legacy preamble and a data field, the non-legacy preamble comprising a first field for indicating a number of spatial streams (Nss) in the data field and a second field for indicating one of a plurality of modulation and coding schemes (MCSs), wherein two or more frequency diversity transmission schemes are supported and one of the two or more frequency diversity transmission schemes is applied based on a value of the Nss; and circuitry which, in operation, decodes the signal.
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