公开(公告)号：US12101827B1

公开(公告)日：2024-09-24

申请号：US18410638

申请日：2024-01-11

申请人： TP-LINK CORPORATION PTE. LTD.

发明人： Junbin Chen

IPC分类号： H04W74/0833 ,  H04W74/08 ,  H04W74/0816

CPC分类号： H04W74/085 ,  H04W74/0816 ,  H04W74/0891

摘要： This disclosure provides a backoff counting method in a non-simultaneous transmit and receive (NSTR) operation mode and the communication device for the method. The method includes: configuring a plurality of backoff counters for counting backoff slots with no medium activity of channels of the plurality of links; synchronizing a count value of a first backoff counter of the plurality of backoff counters with a count value of a second backoff counter of the plurality of backoff counters, if the first backoff counter starts counting later than the second backoff counter or resumes counting after a pause, wherein the count value of the second backoff counter is smaller than that of the first backoff counter; and transmitting or receiving a signal on a channel of at least one of the plurality of links after all the backoff counters reach a predefined value.

公开(公告)号：US20240314848A1

公开(公告)日：2024-09-19

申请号：US18668830

申请日：2024-05-20

申请人： Samsung Electronics Co., Ltd.

发明人： Qi XIONG ,  Bin YU ,  Chen QIAN

IPC分类号： H04W74/0833 ,  H04W56/00 ,  H04W74/00 ,  H04W74/08

CPC分类号： H04W74/0833 ,  H04W56/001 ,  H04W74/004 ,  H04W74/006 ,  H04W74/0891

摘要： The present disclosure provides a grant free uplink transmission method, the method is performed at a user equipment side, comprising: determining, according to configuration information for grant free uplink transmission received from a base station, a radio network temporary identifier GF-RNTI for grant free uplink transmission, and transmitting an uplink signal; and monitoring feedback from the base station in a downlink control channel by using the determined GF-RNTI. The present disclosure also provides a user equipment and a base station for grant free uplink transmission.

公开(公告)号：US20240237084A9

公开(公告)日：2024-07-11

申请号：US17969485

申请日：2022-10-19

申请人： QUALCOMM Incorporated

发明人： Marwen ZORGUI ,  Ahmed Attia ABOTABL ,  Ahmed ELSHAFIE

IPC分类号： H04W74/08 ,  H04W52/36

CPC分类号： H04W74/0841 ,  H04W52/36 ,  H04W74/0891

摘要： A method for wireless communication by a user equipment (UE) includes receiving, from a network node, a first message indicating, for each network power mode of a group of network power modes, a group of random-access channel (RACH) process parameters. The method also includes receiving, from the network node, a second message indicating a current network power mode, of the group of network power modes, enabled at the network node. The method further includes receiving, from the network node, a third message including a physical downlink control channel (PDCCH) order that initiates a RACH process in accordance with the respective group of RACH process parameters associated with the current network power mode. The method still further includes transmitting, to the network node based on receiving the PDCCH order, a RACH preamble associated with the RACH process.

公开(公告)号：US20240237071A1

公开(公告)日：2024-07-11

申请号：US18615748

申请日：2024-03-25

申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

发明人： Liuming LU ,  Yanchao XU ,  Lei HUANG

IPC分类号： H04W74/0816 ,  H04W74/08 ,  H04W76/19

CPC分类号： H04W74/0816 ,  H04W74/0891 ,  H04W76/19

摘要： A wireless communication method for medium access recovery executed by a wireless station (STA) is provided. During medium access recovery, the method uses enhanced rules to reset or not reset a medium synchronization delay timer, such as MediumSyncDelay timer, for various situations associated with a simultaneous transmit and receive (STR) or non-STR (NSTR) multi-link device (MLD), or a tunneled direct-link setup (TDLS) peer STA. The method uses a medium access recovery subfield to indicate whether a multiple user request to send (MU-RTS) trigger frame is sent by an STA that has a nonzero MediumSyncDelay timer.

公开(公告)号：US20240163932A1

公开(公告)日：2024-05-16

申请号：US18388271

申请日：2023-11-09

申请人： MEDIATEK INC.

发明人： Hao-Hua KANG ,  Chih-Chun KUO ,  Cheng-Ying WU ,  Yang-Hung PENG

IPC分类号： H04W74/08

CPC分类号： H04W74/085 ,  H04W74/0891

摘要： A multi-link operation (MLO) transmission method is provided. The MLO transmission method may be applied to an apparatus. The MLO transmission method may include the following steps. A plurality of station (STA) modules of the apparatus may each perform a respective backoff procedure. Each STA module may correspond to a different link. An MLO control circuit of the apparatus or a first STA module of the plurality of STA modules may determine whether to perform a synchronous transmission (TX) for a first STA module and at least one of other STA modules in response to a first backoff counter of the first STA module reaching 0.

公开(公告)号：US20240137984A1

公开(公告)日：2024-04-25

申请号：US18401353

申请日：2023-12-30

申请人： Intel Corporation

发明人： Laurent Cariou ,  Dibakar Das ,  Dmitry Akhmetov

IPC分类号： H04W74/0816 ,  H04W74/00 ,  H04W74/08

CPC分类号： H04W74/0816 ,  H04W74/008 ,  H04W74/0891

摘要： This disclosure describes systems, methods, and devices related to aligned channel access. A device may perform a first backoff countdown on a first link associated with a first station device (STA) of the device, wherein the device is a multi-link device (MLD). The device may detect a second backoff countdown associated with a second STA of the MLD after the first backoff countdown reaches zero. The device may determine to hold the first backoff countdown at zero based on the value of the second backoff countdown. The device may transmit in synchronization on the first link and on the second link from the first STA and the second STA respectively based on holding the first backoff countdown at zero.

公开(公告)号：US20240080910A1

公开(公告)日：2024-03-07

申请号：US18508013

申请日：2023-11-13

申请人： Intellectual Ventures I LLC

发明人： Menzo Wentink

IPC分类号： H04W74/08 ,  H04N21/41 ,  H04W28/12

CPC分类号： H04W74/0891 ,  H04N21/4126 ,  H04W28/12 ,  H04W74/08 ,  H04W74/0816 ,  H04W74/0866 ,  H04W84/12

摘要： A wireless local area network (WLAN) access point (AP) transmits a ready-to-send (RTS) frame. In response to the transmitted RTS frame and during a transmission opportunity (TXOP), a clear-to-send (CTS) frame from a first station is received. The WLAN AP further transmits at least one data frame in response to the received CTS frame and in response to the transmitted at least one data frame, an acknowledgement from the first station. The WLAN AP further transmits, in response to the received acknowledgement signal, a first medium access control (MAC) frame which is received by a second station, and the WLAN AP receives, in response to the transmitted first MAC frame and during the TXOP, a second MAC frame from the second station.

公开(公告)号：US11924889B2

公开(公告)日：2024-03-05

申请号：US17892125

申请日：2022-08-22

申请人： Sony Group Corporation

发明人： Hiroki Matsuda ,  Naoki Kusashima

IPC分类号： H04W74/08 ,  H04W74/00

CPC分类号： H04W74/0841 ,  H04W74/002 ,  H04W74/0891

摘要： Provided are a communication device and a communication method capable of further improving the quality between radio links in a communication system in which a base station device and the communication device communicate with each other. A communication device (50) according to the present disclosure includes a receiver (511a) and a transmitter (512d). The receiver (511a) receives a synchronization signal transmitted from a base station device (20, 30). The transmitter (512d) transmits a physical random access channel (PRACH) including a feature capable of uniquely identifying the synchronization signal received by a receiver (511a) and/or a PRACH resource to the base station device (20, 30).

公开(公告)号：US11871452B2

公开(公告)日：2024-01-09

申请号：US17292142

申请日：2018-11-09

申请人： NTT DOCOMO, INC.

发明人： Hiroki Harada ,  Daisuke Murayama ,  Shohei Yoshioka

IPC分类号： H04W74/08 ,  H04L5/00 ,  H04W74/00

CPC分类号： H04W74/0816 ,  H04L5/0051 ,  H04W74/006 ,  H04W74/0891

摘要： In order to perform appropriate communication in an unlicensed band, a user terminal according to one aspect of the present disclosure includes a receiving section that receives at least one of a synchronization signal block and a reference signal for measurement in a given duration of a frequency domain to which listening is applied, and a control section that controls reception of a physical downlink channel based on a transmission candidate position of at least one of the synchronization signal block and the reference signal for measurement when the physical downlink channel is received in the given duration.

公开(公告)号：US11849482B2

公开(公告)日：2023-12-19

申请号：US17017245

申请日：2020-09-10

申请人： QUALCOMM Incorporated

发明人： Aleksandar Damnjanovic ,  Yisheng Xue

IPC分类号： H04W74/08 ,  H04W56/00

CPC分类号： H04W74/0808 ,  H04W56/001 ,  H04W74/0891

摘要： Synchronization of listen before talk (LBT) back-off for synchronous access in unlicensed spectrum is disclosed. For nodes of a coordinated group of nodes, when one or more such nodes detects a failed LBT attempt, it pauses the contention widow countdown at the current counter value. According to such aspects, a procedure may be provided that specifies when such nodes can restart the contention window countdown using the current counter value or when the nodes can redraw the pseudo-random number for the contention window countdown in order to synchronize the contention window counters.