公开(公告)号：US10827547B2

公开(公告)日：2020-11-03

申请号：US16059714

申请日：2018-08-09

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Thomas Novlan ,  Arunabha Ghosh ,  Salam Akoum ,  Milap Majmundar ,  Xiaoyi Wang

IPC: H04W76/15 ,  H04L5/16 ,  H04W76/14 ,  H04W56/00 ,  H04W84/04

Abstract: The same or similar physical signals can be used for both user equipment (UE) and an integrated access backhaul (IAB) node. Different configurations of resources and/or transmission periods of the signals can be used for initial access for access UEs and IAB nodes. In addition, since the UE functionality for IAB nodes is not fully identical with access UEs, the network can identify which UEs performing initial access are normal access UEs or are IAB nodes with UE functionality. Furthermore, the parameters for configuring radio resource management operation at the IAB node gNode B function can consider a half-duplex constraint imposed by the UE function and can also analyze hop order and other topology/route management functionalities.

公开(公告)号：US10820290B2

公开(公告)日：2020-10-27

申请号：US16101917

申请日：2018-08-13

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Ralf Bendlin ,  Arunabha Ghosh ,  Xiaoyi Wang ,  Thomas Novlan

IPC: H04W56/00 ,  H04W74/08 ,  H04B7/26 ,  H04W88/04 ,  H04W92/02 ,  H04W74/00

Abstract: An integrated access and backhaul network is provided with network nodes that can establish timing synchronization with any other network nodes. In an embodiment, network nodes in a multi-hop integrated access and backhaul network have a hop order of n, wherein n represents a number of hops from a node connected to the core network via a wired connection. In an embodiment, instead of using the network node with a hop order of 0 as the timing synchronization reference for over-the-air synchronization, any network node can use any other network node as a synchronization reference. A relay node can first establish a wireless link to said arbitrary node. Said wireless link is then used to synchronize the relay or IAB node using a Precision Time Protocol (PTP) implementation.

公开(公告)号：US10813053B2

公开(公告)日：2020-10-20

申请号：US16582087

申请日：2019-09-25

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Arunabha Ghosh ,  Thomas Novlan ,  Xiaoyi Wang ,  Ralf Bendlin ,  Aditya Chopra

IPC: H04B7/15 ,  H04W52/14 ,  H04W88/10 ,  H04L5/00 ,  H04W56/00

Abstract: Power control can be employed, whereby a power control adjustment can be determined by a relay distributed unit (DU) device, based on a measurement of the power level of received access uplink transmissions, and a measurement of the power level of a reference signal received from a donor DU via a backhaul downlink transmission. The power control adjustment can be transmitted to the donor distributed unit device, which uses the power control adjustment to reduce the amount of power of downlink transmissions to the relay distributed unit device.

公开(公告)号：US10757700B2

公开(公告)日：2020-08-25

申请号：US16153794

申请日：2018-10-07

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Ralf Bendlin ,  Thomas Novlan

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04W72/12 ,  H04W56/00 ,  H04W88/04 ,  H04W88/14

Abstract: Facilitating frame structure coordination in wireless communication systems with integrated access and backhaul links in advanced networks (e.g., 4G, 5G, and beyond) is provided herein. Operations of a system can comprise facilitating a first configuration of a first group of flexible symbols and facilitating a second configuration of a first pattern defined for an uplink transmission. Further, the operations can comprise facilitating a third configuration of a second pattern defined for a downlink transmission and facilitating a fourth configuration of a second group of flexible symbols. Flexible symbols can be symbols within a slot that are not defined as uplink symbols or downlink symbols.

公开(公告)号：US10728935B2

公开(公告)日：2020-07-28

申请号：US16258923

申请日：2019-01-28

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Thomas Novlan ,  Salam Akoum ,  Arunabha Ghosh ,  Milap Majmundar

IPC: H04W4/00 ,  H04W76/11 ,  H04W76/15 ,  H04W74/00 ,  H04W76/10 ,  H04W72/04 ,  H04W74/08

Abstract: The random access channel procedure for new radio NR can be designed to support multiple use cases with various requirements. The NR physical layer can support the independent configuration of resources used for the random access channel (RACH) procedures that can be transparent to user equipment (UE) devices and independent from resources configured for the UE. For instance, in the case of a standalone NR the RACH configuration can be obtained by the UE by either signaling on the NR carrier or fixed within the telecommunications standard. While in the case of non-standalone NR the RACH configuration can be obtained by the UE by broadcast or dedicated signaling on a different carrier than the NR carrier (e.g. a Long Term Evolution carrier).

公开(公告)号：US10728001B2

公开(公告)日：2020-07-28

申请号：US16733002

申请日：2020-01-02

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Xiaoyi Wang ,  Arunabha Ghosh ,  Salam Akoum ,  Thomas Novlan

IPC: H04L5/00

Abstract: Facilitating a signaling framework for configuring different types of reference signals for wireless communication systems is provided herein. A system can comprise: a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations. The operations can comprise: receiving a reference signal from a user equipment device; based on the reference signal generating a unique identifier from the reference signal; allocating a resource associated with the reference signal based on a reference signal type and a component carrier index list; associating the unique identifier with the resource, the component carrier index list, and the reference signal type in a data structure; and storing the data structure to the memory and transmitting the data structure to the user equipment device.

公开(公告)号：US20200229141A1

公开(公告)日：2020-07-16

申请号：US16245635

申请日：2019-01-11

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Xiaoyi Wang ,  Ralf Bendlin ,  Arunabha Ghosh ,  Andrew Thornburg ,  Salam Akoum ,  Thomas Novlan ,  Milap Majmundar

IPC: H04W72/02 ,  H04W88/04 ,  H04W72/12 ,  H04W8/24 ,  H04W72/04

Abstract: To increase network efficiency, a user equipment (UE) can be appointed as a local manager to coordinate the allocation of resources used by other UEs. For example, the network can promote the UE as a local manager and assign the local manager a resource pool. The local manager can then broadcast synchronization signals to let the other UEs associate themselves with the local manager. After the other UEs are synced with the local manager, the local manager can allocate resources to the other UEs. Based on report data regarding the local managers management procedures, the network can maintain the UE as the local manager or demote the UE from local manager status.

公开(公告)号：US20200212970A1

公开(公告)日：2020-07-02

申请号：US16813824

申请日：2020-03-10

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： Xiaoyi Wang ,  Thomas Novlan ,  Salam Akoum ,  Ralf Bendlin ,  Milap Majmundar ,  Andrew Thornburg ,  Arunabha Ghosh

IPC: H04B7/0452 ,  H04L5/00 ,  H04L12/66 ,  H04B7/14

Abstract: Various embodiments disclosed herein provide for an enhanced timing advance scheme to support MU-MIMO in an integrated access and backhaul system. The timing advance scheme disclosed herein aligns the arrival time between backhaul links and access links to enable MU-MIMO gain at the receiver side. In the integrated access and backhaul system, which comprises distributed nodes, the timing advance offset for an access link transmission (a transmission to a node further away in hops from the core network, or to a user equipment device) can be modified by offsetting it with the timing advance of the backhaul link (e.g., from a parent node). This enables the arrival time for transmissions, both access link transmissions from the UE or child node, and backhaul link transmissions from a parent node to arrive at the same time.

公开(公告)号：US10693621B2

公开(公告)日：2020-06-23

申请号：US16528777

申请日：2019-08-01

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Ralf Bendlin ,  Thomas Novlan

IPC: H04L5/00

Abstract: Facilitating virtual carrier aggregation for wideband operation of wireless communication systems is provided herein. A system can comprise: a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations. The operations can comprise: receiving, from a network device of network devices, downlink transmission data comprising downlink control information applicable to a downlink channel of the network device; as a function of the downlink transmission data, adjusting a subband of subbands resulting in an aggregation of multiple subbands; and transmitting uplink radio traffic data via the aggregation of multiple subbands to the network device.

公开(公告)号：US20200177271A1

公开(公告)日：2020-06-04

申请号：US16370229

申请日：2019-03-29

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Arunabha Ghosh ,  Milap Majmundar ,  Thomas Novlan

IPC: H04B7/155 ,  H04W80/08 ,  H04W88/18 ,  H04W72/04

Abstract: Facilitating operation and support of mobile relays based on an integrated access and backhaul concept for advanced networks (e.g., 4G, 5G, 6G, and beyond) is provided. An embodiment relates to a communication network architecture that can comprise a control plane architecture of a relay node device. The control plane architecture can comprise a star-type architecture. Further, the communication network architecture can comprise a user plane architecture of the relay node device. The user plane architecture can be separated from (or independent of) the control plane architecture. Further, the user plane architecture can comprise a multi-hop architecture. The relay node device can be configured to operate according to a fifth generation wireless network communication protocol, or other advanced communication protocols.