公开(公告)号：US20240314007A1

公开(公告)日：2024-09-19

申请号：US18673857

申请日：2024-05-24

申请人： HUMAX NETWORKS, INC. ,  WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

发明人： Juhyung SON ,  Jinsam KWAK ,  Bonho KOO ,  Kiwon KANG

IPC分类号： H04L27/26 ,  H04L5/00 ,  H04W74/0833

CPC分类号： H04L27/2602 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0083 ,  H04L27/2605 ,  H04L27/261 ,  H04L27/2662 ,  H04L27/2675 ,  H04W74/0833 ,  H04L27/2603

摘要： Provided is a base wireless communication terminal. The base wireless communication terminal includes a transceiver and a processor. The processor is configured to transmit a mixed Physical Layer Protocol Data Unit (PPDU) including both data for a Long Range (LR) wireless communication terminal and data for a non-LR wireless communication terminal to the LR wireless communication terminal and the non-LR wireless communication terminal using the transceiver. The LR PPDU including only the data for the LR wireless communication terminal has a narrower bandwidth than a bandwidth of the non-LR PPDU including only the data for the non-LR wireless communication terminal.

公开(公告)号：US20240291701A1

公开(公告)日：2024-08-29

申请号：US18659891

申请日：2024-05-09

申请人： Telefonaktiebolaget LM Ericsson (PUBL)

发明人： Martin HESSLER ,  Robert BALDEMAIR ,  Lars LINDBOM ,  Henrik SAHLIN ,  Niclas WIBERG

IPC分类号： H04L27/26 ,  H04L5/00 ,  H04L27/233

CPC分类号： H04L27/2613 ,  H04L5/001 ,  H04L5/0051 ,  H04L27/2332 ,  H04L27/2607 ,  H04L27/2675 ,  H04L5/0007

摘要： A user equipment (910) is provided for use in a cellular network. The user equipment includes a transceiver (1010), a processor (1020), and a memory (1030). The user equipment (910) is configured to determine, for a data transmission, a mapping form a demodulation reference signal (DMRS) to a PNT-RS. A DMRS resulting signal is generated from a subset of DMRS for a first resource element in a subcarrier. The DMRS resulting signal is copied from the first resource element to a second resource element assigned to the PNT-RS in the subcarrier. The data transmission is transmitted using the DMRS resulting signal and the PNT-RS.

公开(公告)号：US11936580B2

公开(公告)日：2024-03-19

申请号：US17566005

申请日：2021-12-30

申请人： Apple Inc.

发明人： Joonsuk Kim ,  Yuchul Kim

IPC分类号： H04L5/00 ,  H04L1/12 ,  H04L1/1829 ,  H04L27/26 ,  H04W56/00 ,  H04L25/02 ,  H04W84/12

CPC分类号： H04L5/0048 ,  H04L1/12 ,  H04L1/1854 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2675 ,  H04W56/002 ,  H04L5/0023 ,  H04L25/0202 ,  H04W84/12

摘要： This disclosure relates to orthogonal frequency division multiple access (OFDMA) communication in wireless local area networks (WLANs). According to some embodiments, a downlink OFDMA frame may be transmitted. An uplink OFDMA frame including acknowledgements associated with the downlink OFDMA frame may be received. The uplink OFDMA frame may be processed, in some instances including determining which devices receiving the downlink OFDMA frame transmitted an acknowledgement associated with the downlink OFDMA frame in the uplink OFDMA frame.

公开(公告)号：US11882568B2

公开(公告)日：2024-01-23

申请号：US17476067

申请日：2021-09-15

申请人： QUALCOMM Incorporated

发明人： Bilal Sadiq ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Juergen Cezanne ,  Navid Abedini ,  Tao Luo

IPC分类号： H04W72/23 ,  H04L27/26 ,  H04W56/00 ,  H04L5/00 ,  H04J11/00

CPC分类号： H04W72/23 ,  H04L5/0053 ,  H04L27/2656 ,  H04L27/2666 ,  H04W56/0015 ,  H04J11/0073 ,  H04J11/0076 ,  H04L5/005 ,  H04L27/2675

摘要： Techniques are described for wireless communication. In one method, a user equipment (UE) receives a timing synchronization signal (TSS) and a physical broadcast channel (PBCH), with the TSS based at least in part on a timing of the TSS within a broadcast channel transmission time interval (BCH TTI); determines the timing of the TSS within the BCH TTI; and demodulates the PBCH based at least in part on the TSS. In another method, a base station allocates resources for a TSS and a PBCH within a BCH TTI; determines the TSS based at least in part on a timing of the TSS within the BCH TTI; and transmits, on the resources allocated for the TSS and the PBCH, the TSS and the PBCH, with the TSS transmitted as a demodulation reference signal (DMRS) for the PBCH on at least one port used to transmit the TSS and the PBCH.

公开(公告)号：US11848881B2

公开(公告)日：2023-12-19

申请号：US17230620

申请日：2021-04-14

申请人： QUALCOMM Incorporated

发明人： Idan Michael Horn ,  Assaf Touboul ,  Shay Landis ,  Michael Levitsky ,  Gideon Shlomo Kutz ,  Ory Eger ,  Amit Bar-Or Tillinger ,  Daniel Paz

IPC分类号： H04W72/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/21

CPC分类号： H04L5/0048 ,  H04L27/2621 ,  H04L27/2675 ,  H04W72/21

摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may transmit a request, for an uplink transmission or a downlink transmission, for tone reservation on one or more subchannels allocated for phase tracking reference signals (PT-RSs); and transmit the uplink transmission or receiving the downlink transmission based at least in part on the request. Numerous other aspects are provided.

公开(公告)号：US20230396482A1

公开(公告)日：2023-12-07

申请号：US18245762

申请日：2021-07-19

申请人： Beijing University of Posts and Telecommunications

发明人： Zhiyong FENG ,  Sai HUANG ,  Yifan ZHAO ,  Qixun ZHANG ,  Zhiqing WEI

IPC分类号： H04L27/26 ,  H04L5/00

CPC分类号： H04L27/2675 ,  H04L27/2666 ,  H04L5/0048

摘要： Embodiments of the present invention provide a signal processing method and apparatus, a first device determines a target insertion position of a pilot sequence in a first frequency-domain signal based on the data bits in a first sub-data signal obtained by dividing data bits in a data signal, combines the pilot sequences with a second sub-data signal obtained by dividing the data signal according to the determined target insertion positions, to obtain the first frequency-domain signal; sends the pulse signal corresponding to the first frequency-domain signal to the second device. The second device determines the pilot sequences in the first frequency-domain signal corresponding to the pulse signal and determines the data bits corresponding to the insertion position of each of the pilot sequences in the first frequency-domain signal, to obtain the first sub-data signal; demodulates subcarriers in the first frequency-domain signal other than the pilot sequences, to obtain the second sub-data signal; splices the first sub-data signal and the second sub-data signal, to obtain the corresponding data signal. Based on the above processing, spectrum resource utilization rate can be improved.

公开(公告)号：US20230388168A1

公开(公告)日：2023-11-30

申请号：US18247856

申请日：2021-09-17

申请人： Nokia Technologies Oy

发明人： Juha KARJALAINEN ,  Sami-Jukka HAKOLA ,  Esa TllROLA ,  Jorma KAIKKONEN ,  Karol SCHOBER ,  Timo KOSKELA ,  Mihai ENESCU ,  Kari PAJUKOSKI

IPC分类号： H04L27/26

CPC分类号： H04L27/2613 ,  H04L27/2675 ,  H04L5/0051

摘要： Devices, methods and computer programs for compensation of residual time-frequency error(s) in communications between a network node device and a client device are disclosed. A network node device determines an auxiliary reference signal indication comprising presence information and location information of an auxiliary reference signal in a physical downlink channel transmission. The network node device transmits to the client device the auxiliary reference signal associated with a physical downlink channel in accordance with the determined auxiliary reference signal indication. The client device uses the received auxiliary reference signal for the compensation of the residual time-frequency error(s) in the communications.

公开(公告)号：US11811578B1

公开(公告)日：2023-11-07

申请号：US17895992

申请日：2022-08-25

申请人： Cypress Semiconductor Corporation

发明人： Claudio Rey

IPC分类号： H04L27/26 ,  H04L25/02

CPC分类号： H04L27/2675 ,  H04L25/0204 ,  H04L25/0224

摘要： A wireless device includes a receiver to receive a packet via one or more antennas. A frame synchronization detection circuit coupled to the receiver identifies a frame synchronization pattern within a portion of the packet. A correlation circuit coupled to the frame synchronization detection circuit computes, in response to the identifying of the frame synchronization pattern within the portion of the packet, a frequency offset using a correlation method. A frequency estimation correction circuit coupled to the correlation circuit determines, based on the frame synchronization pattern, a bias value, wherein the bias value corresponds to a data pattern within the frame synchronization pattern indicative of a frequency bias, and applies a correction to the frequency offset, wherein applying the correction to the frequency offset comprises modifying the frequency offset using the bias value.

公开(公告)号：US11800472B2

公开(公告)日：2023-10-24

申请号：US17174088

申请日：2021-02-11

申请人： QUALCOMM Incorporated

发明人： Gabi Sarkis ,  Shuanshuan Wu ,  Kapil Gulati ,  Sudhir Kumar Baghel

IPC分类号： H04W56/00 ,  H04W76/11 ,  H04W4/40 ,  H04L27/26 ,  H04L5/00 ,  H04W72/20 ,  H04W72/30

CPC分类号： H04W56/0015 ,  H04L5/0048 ,  H04L27/2675 ,  H04W4/40 ,  H04W72/20 ,  H04W72/30 ,  H04W76/11

摘要： Aspects relate to a demodulation reference signal (DMRS) in a sidelink wireless communication network. In some examples, a sidelink device generates a DMRS based on first and second identifiers of the sidelink device. In some examples, a sidelink device generates a DMRS based on an initialization parameter and/or at least one scaling parameter. In some examples, the initialization parameter may be based on a first identifier of a sidelink device. In some examples, the at least one scaling parameter may be based on a second identifier of a sidelink device. In some examples, a first sidelink device synchronizes with a second sidelink device based on broadcast channel information that is obtained by using DMRS information to decode a received broadcast signal. In some examples, the DMRS information may be based on first and second identifiers of the first sidelink device.

公开(公告)号：US20230246892A1

公开(公告)日：2023-08-03

申请号：US18132493

申请日：2023-04-10

申请人： Telefonaktiebolaget LM Ericsson(PUBL)

发明人： Martin Hessler ,  Robert BALDEMAIR ,  Lars LINDBOM ,  Henrik SAHLIN ,  Niclas WIBERG

IPC分类号： H04L27/26 ,  H04L5/00 ,  H04L27/233

CPC分类号： H04L27/2613 ,  H04L5/0051 ,  H04L27/2675 ,  H04L5/001 ,  H04L27/2332 ,  H04L27/2607 ,  H04L5/0007

摘要： A user equipment (910) is provided for use in a cellular network. The user equipment includes a transceiver (1010), a processor (1020), and a memory (1030). The user equipment (910) is configured to determine, for a data transmission, a mapping form a demodulation reference signal (DMRS) to a PNT-RS. A DMRS resulting signal is generated from a subset of DMRS for a first resource element in a subcarrier. The DMRS resulting signal is copied from the first resource element to a second resource element assigned to the PNT-RS in the subcarrier. The data transmission is transmitted using the DMRS resulting signal and the PNT-RS.