公开(公告)号：US20210410129A1

公开(公告)日：2021-12-30

申请号：US17279272

申请日：2019-09-25

Applicant: IDAC HOLDINGS, INC.

Inventor： Martino M. Freda ,  Tao Deng ,  Tuong Duc Hoang ,  Aata El Hamss ,  Michelle Perras

IPC: H04W72/04 ,  H04W72/08

Abstract: Systems, methods, and devices for unicast and/or multicast link establishment and maintenance. A wireless transmit receive unit (WTRU) may send a link establishment request broadcast message, wherein in the link may be for multicast, unicast, or groupcast. The WTRU may receive a link establishment response broadcast message and a connectivity report. The WTRU may then send a link establishment confirmation broadcast message once a multicast or unicast link has been established, at which point the WTRU may send and receive a multicast message. The link establishment request message may be sent based on one or more triggers: receiving a QoS flow, needing a new sidelink radio bearer, determining that a new QoS flow or radio bearer requires network controlled admission control, and/or receive a unicast and/or multicast establishment request. The WTRU may transmit a unicast and/or multicast usability signal (UMUS). The WTRU may preempt the established multicast or unicast link.

公开(公告)号：US20210314796A1

公开(公告)日：2021-10-07

申请号：US17265865

申请日：2019-08-07

Applicant: IDAC HOLDINGS, INC.

Inventor： Tuong Duc Hoang ,  Tao Deng ,  Martino M. Freda ,  Aata El Hamss ,  Benoit Pelletier ,  Chunxuan Ye

IPC: H04W24/08 ,  H04W52/36 ,  H04W28/02

Abstract: Methods, devices, and systems for congestion control in a wireless communications system. Some embodiments include receiving a plurality of zone configurations, receiving, for each of the plurality of zone configurations, a channel busy ratio (CBR) threshold and a mapping of zone identities (IDs) to resource pools; and measuring a CBR of a resource pool with which the WTRU is currently configured. If the measured CBR meets a CBR threshold of a first zone configuration of the plurality, the WTRU is configured with the first zone configuration, with a zone ID based on the first zone configuration and a position of the WTRU, and with a resource pool based on the mapping and the configured zone ID

公开(公告)号：US20210176735A1

公开(公告)日：2021-06-10

申请号：US17265732

申请日：2019-08-07

Applicant: IDAC HOLDINGS, INC.

Inventor： Tao Deng ,  Martino M. Freda ,  Tuong Duc Hoang ,  Aata El Hamss

IPC: H04W72/02 ,  H04W72/04 ,  H04W72/08 ,  H04W24/10 ,  H04B17/318 ,  H04W4/40

Abstract: A 5G UE achieves flexible SL time resource granularity by determining which UL/Flexible symbols/slots belong to a symbol-based SL resource pool and a slot-based SL resource pool based on SFI in RRC/GC-PDCCH. The UE then determines which resources are available in each pool based on sensing and selects a resource pool to use so that QoS/latency requirements are met.

公开(公告)号：US20210105789A1

公开(公告)日：2021-04-08

申请号：US17044666

申请日：2019-04-01

Applicant: IDAC HOLDINGS, INC.

Inventor： Martino M. Freda ,  Tao Deng ,  Tuong Duc Hoang ,  Benoit Pelletier ,  Aata El Hamss ,  Saad Ahmad ,  Michelle Perras

IPC: H04W72/08 ,  H04W28/02 ,  H04W72/10 ,  H04W4/40

Abstract: Methods, systems, and apparatuses for sidelink communication are disclosed. A WTRU may receive a first SCI element from a second WTRU within a group. The WTRU may receive a first RCI element within a first set of resources scheduled by the first SCI. The first RCI may include information about which WTRU in the group is scheduled to use a second set of resources. The WTRU may determine, based on the first RCI, that one or more subresources within the second set of resources are available. The WTRU may transmit data in the one or more subresources. The first SCI and the first RCI may be received in a first reservation period and the one or more subresources may be in a second reservation period.

公开(公告)号：US20190306835A1

公开(公告)日：2019-10-03

申请号：US16372949

申请日：2019-04-02

Applicant: IDAC Holdings, Inc.

Inventor： Tuong Duc Hoang ,  Tao Deng ,  Martino M. Freda ,  Aata El Hamss ,  Benoit Pelletier

IPC: H04W72/02 ,  H04W72/04

Abstract: A wireless transmit/receive unit (WTRU) operating in an autonomous-scheduled mode may select a first resource from a resource pool. The WTRU may determine that the first resource is reserved for at least one sidelink transmission scheduled via a network-scheduled mode. The WTRU may evaluate the availability of resources in the resource pool based on determining that the first resource is reserved for the sidelink transmission. The WTRU may determine that a resource is available based on a measurement comparison to one or more thresholds. For example, there may be a first threshold for resources reserved by WTRUs operating using the network-scheduled mode and a second threshold for resources reserved by WTRUs operating using the autonomous-scheduled mode. The first threshold may be determined based on the second threshold and an offset value. The WTRU may reselect to a second resource in the resource pool based on the evaluated resource availability.