公开(公告)号：US10700775B2

公开(公告)日：2020-06-30

申请号：US16137827

申请日：2018-09-21

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

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

IPC: H04B7/26 ,  H04B7/155 ,  H04W72/04 ,  H04W92/20 ,  H04B7/0413

Abstract: The described technology is generally directed towards dynamic resource coordination that supports multi-hop based relaying for integrated access and backhaul (IAB) in New Radio (5G). Described is a technology in which an IAB node and a serving parent node use wireless signaling to dynamically adapt downlink and uplink resources used for access and backhaul links. An IAB node receives scheduling data from a parent node, configures a frame structure comprising mobile termination function subframes and distributed unit component subframes, and communicates data based on the frame structure. The parent node explicitly or implicitly indicates that a portion of the scheduling data is adaptable, e.g., sends a dynamic frame structure coordination message. In response, the IAB node can adapt the frame structure into a modified frame structure and can communicate further data based on the modified frame structure.

公开(公告)号：US20200154266A1

公开(公告)日：2020-05-14

申请号：US16738506

申请日：2020-01-09

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

Inventor： Thomas Novlan ,  Milap Majmundar ,  Arunabha Ghosh

IPC: H04W8/22 ,  H04W72/04 ,  H04W24/02

Abstract: In a 5G network, new radios (NR) can be deployed as a standalone radio access technology or as a non-standalone radio access technology assisted by another radio access technology. Long-term evolution (LTE), which is widely deployed can provide seamless coverage and uninterrupted connectivity, however NRs can provide significantly increased data rates or new services. However, the deployment of NR can be limited to hotspots under the footprint of LTE. Therefore, dual connectivity between LTE and NR can be utilized for non-standalone NR because control plane functions can be sent over LTE while the data plane can be managed on NR, allowing for simplified NR deployments where device support for both LTE and NR is available.

公开(公告)号：US10595363B2

公开(公告)日：2020-03-17

申请号：US15977513

申请日：2018-05-11

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

Inventor： Xiaoyi Wang ,  Thomas Novlan ,  Andrew Thornburg ,  Milap Majmundar ,  Arunabha Ghosh

IPC: H04W84/20 ,  H04L12/759 ,  H04W4/40 ,  H04W76/14

Abstract: The described technology is generally directed towards an autonomous topology management scheme in a wireless communications network that establishes a hierarchical structure from a peer-to-peer network without assistance from the wireless network. A group of user equipments negotiate with each other to elect a local manager that acts as a base station by which other user equipments of the group can access network resources. Described is an example voting scheme by which the negotiation process elects the local manager for a term.

公开(公告)号：US20200059339A1

公开(公告)日：2020-02-20

申请号：US16665167

申请日：2019-10-28

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

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

IPC: H04L5/00 ,  H04L27/26 ,  H04B7/06

Abstract: Various embodiments disclosed herein provide for efficient configuration of demodulation reference signals in beamformed wireless communications systems. In an embodiment, the transmitter can signal the location of demodulation reference signals (DMRS) by including an indicator bit in downlink control information indicating which DMRS scheme is used in the transmission. A first DMRS scheme can let the user equipment (UE) device know that the DMRS position for the PDSCH carrying the RMSI is as signaled on the master information block (MIB)—referred to as PDSCH Mapping Type A. A second DMRS scheme can let the UE device know that the DMRS position for the PDSCH carrying the RMSI is the first orthogonal frequency division multiplexing (OFDM) symbol of said PDSCH allocation—referred to as PDSCH mapping type B).

公开(公告)号：US10568146B2

公开(公告)日：2020-02-18

申请号：US16391276

申请日：2019-04-22

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

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

IPC: H04W72/08 ,  H04W74/08 ,  H04B7/0408 ,  H04W74/00 ,  H04B7/06

Abstract: Enhanced beam management for a wireless communication system is provided. In one example, a method comprises: receiving, from a mobile device, a message indicating first beam information for a selected first beam of beams associated with the base station device, wherein the message is a first received message of a random access channel procedure; and receiving, from the mobile device, message indicating second beam information for a selected second beam of the beams associated with the base station device, wherein the selected second beam is an alternative to the selected first beam for transmission of downlink data to the mobile device from the base station device, and wherein the second beam is indicated in the first message of a two-step random access channel procedure. Methods of signaling the second beam and/or transmission diversity approaches employing the first beam and/or the second beam are described.

公开(公告)号：US20200053524A1

公开(公告)日：2020-02-13

申请号：US16100650

申请日：2018-08-10

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

Inventor： Thomas Novlan ,  Xiaoyi Wang ,  Arunabha Ghosh ,  Milap Majmundar ,  Andrew Thornburg

IPC: H04W4/40 ,  H04W76/15 ,  H04W4/08 ,  G08G1/00 ,  H04W76/14 ,  H04W8/14 ,  H04W24/10 ,  H04W12/06 ,  H04W84/20 ,  H04W72/04

Abstract: The described technology is generally directed towards a multi-connectivity (three or more simultaneous communication links) framework in a wireless communication network, including aspects and components that support the operation of New Radio vehicle-to-everything (V2X) services. Aspects of the framework include initial access and V2X establishment, local manager selection, sidelink and cellular resource configuration, mobility and measurements (and reporting), group communication and vehicular platooning support, and V2X configuration and local manager association.

公开(公告)号：US20200037185A1

公开(公告)日：2020-01-30

申请号：US16590487

申请日：2019-10-02

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

Inventor： Arunabha Ghosh ,  Thomas Novlan ,  Xiaoyi Wang

IPC: H04W24/08 ,  H04B17/318 ,  H04B17/345

Abstract: A cross link interference (CLI) measurement system is disclosed. The cross link interference measurement system can measure both unconstrained CLI that do not require any special constraints on the frame structure, and constrained CLI that does require special constraints on the frame structure (e.g., measurement gaps). The system does this in part by not only measuring reference signal received powers, but also determining load based on a power scaling of a reference signal and based on angle of arrival determinations.

公开(公告)号：US20190363854A1

公开(公告)日：2019-11-28

申请号：US16537790

申请日：2019-08-12

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：US10470136B1

公开(公告)日：2019-11-05

申请号：US16101024

申请日：2018-08-10

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：US20190313408A1

公开(公告)日：2019-10-10

申请号：US16449306

申请日：2019-06-21

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

Inventor： Milap Majmundar ,  Thomas Novlan ,  Arunabha Ghosh

IPC: H04W72/04

Abstract: Concurrent mini-slot based and slot based transmissions to a single device are provided herein. A method can comprise transmitting, by a network device comprising a processor, first data via a first control channel indicating a slot based transmission for a device and second data via a second control channel indicating a mini-slot based transmission for the device. A first length of the slot based transmission can comprise a defined number of symbols and a second length of the mini-slot based transmission can comprise some of the defined number of symbols. The method can also comprise transmitting, by the network device, the slot based transmission and the mini-slot based transmission. The slot based transmission and the mini-slot based transmission can be logically separate transmissions that can be scheduled to be concurrent transmissions for the device.