公开(公告)号：US10419196B2

公开(公告)日：2019-09-17

申请号：US15587511

申请日：2017-05-05

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：US20190260547A1

公开(公告)日：2019-08-22

申请号：US15932258

申请日：2018-02-16

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

Inventor： SaiRamesh Nammi ,  Ralf Bendlin ,  Arunabha Ghosh

IPC: H04L5/00

Abstract: Controlling and reducing overhead in control channels in 5G or other next generation communication systems is provided herein. In connection with a data transmission between a device and a network node device, an overhead management component (OMC) can analyze one or more factors associated with the device, including speed or Doppler metric(s) of the device, type of service associated with the device, historical HARQ statistics for the device, configured threshold value for CSI estimation, device capability regarding redundancy version support, or another factor(s). Based on analysis results, OMC can determine whether to utilize a single redundancy version state or a multiple redundancy versions state. If the single redundancy version state is selected, OMC can generate control information that does not include redundancy version information, the control information being communicated via a control channel. OMC can communicate RRC signal to the device to indicate the determined redundancy version state.

公开(公告)号：US10333740B2

公开(公告)日：2019-06-25

申请号：US15700151

申请日：2017-09-10

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

Inventor： Ralf Bendlin ,  Arunabha Ghosh

IPC: H04W36/00 ,  H04L25/02 ,  H04L25/03 ,  H04L12/40 ,  H04L27/26 ,  H04L27/06

Abstract: A method facilitating determination of transmission type via demodulation reference signal (DMRS) patterns is provided. In one example, the method can include generating information according to a protocol for receipt by a mobile device, wherein the information is indicative of a defined transmission type for the mobile device and wherein the protocol employs demodulation reference signal patterns; and transmitting the information to the mobile device. In some embodiments, the protocol comprises a first protocol in which the information comprises a first message transmitted in a first set of resources to communicate to the mobile device a first downlink control information (DCI) format associated with a first transmission type, and wherein the protocol further comprises a second protocol in which the information comprises a second message transmitted in a second set of resources to communicate to the mobile device a second DCI format associated with a second transmission type.

公开(公告)号：US20190053270A1

公开(公告)日：2019-02-14

申请号：US15674118

申请日：2017-08-10

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

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

IPC: H04W74/00 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04W74/006 ,  H04B7/0413 ,  H04L5/0005 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0076 ,  H04W4/70 ,  H04W72/046 ,  H04W72/085

Abstract: The described technology is generally directed towards wireless communications systems in which multiple control channel resource sets (CORESETs) are configured into a CORESET group. The CORESET group may be associated with a usage scenario/quality of service requirement, and used by user equipment to decode downlink control information corresponding to that usage scenario. For example, one CORESET group can be used for URLLC traffic, another for eMBB type traffic and another for mMTC traffic. Different CORESET groups may be used to provide different aggregation level sets, different DMRS pattern configurations, different search spaces, different transmission protocols/schemes, different beam management and recovery procedures, different radio link monitoring and radio link failure procedures, and so on. Different CORESET groups may be associated with different transmission points.

公开(公告)号：US20180234969A1

公开(公告)日：2018-08-16

申请号：US15431608

申请日：2017-02-13

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

Inventor： Xiaoyi Wang ,  Ralf Bendlin ,  Arunabha Ghosh ,  SaiRamesh Nammi

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04L5/0053 ,  H04W72/042

Abstract: An early termination system for blind decoding is provided to decrease the computational resources utilized when decoding the physical resources, and decrease the time spent decoding. A blind decoding priority list can be used by the mobile device to preferentially decode specific physical resource elements as it specifies the order of all the candidate physical downlink control channels (PDCCHs). When the physical resource elements are decoded, if there is no more downlink control information in that transmission time interval, the downlink control information can include a termination bit, and the mobile device, upon identifying the termination bit can cease blind decoding of the remainder candidates. In this way, the blind decoding process more quickly identifies the downlink control information, and subsequent blind decoding is halted.

公开(公告)号：US12028939B2

公开(公告)日：2024-07-02

申请号：US17993244

申请日：2022-11-23

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

Inventor： Ralf Bendlin ,  Thomas Novlan ,  Arunabha Ghosh ,  Abdulrauf Hafeez

IPC: H04W88/06 ,  H04B7/0452 ,  H04W16/14 ,  H04W72/23 ,  H04W74/0816

CPC classification number: H04W88/06 ,  H04W16/14 ,  H04W72/23 ,  H04W74/0816 ,  H04B7/0452

Abstract: A closed loop carrier sense multiple access multiuser request to send and clear to send handshaking system is provided to efficiently allocate licensed and unlicensed spectrum for a plurality of mobile devices and across different base stations and mobile network operators. A user equipment device can be connected to a base station device via a first frequency in licensed spectrum, and a second frequency in unlicensed spectrum. The air interface on the first frequency can then be used to coordinate physical and virtual carrier sensing on a second frequency among a plurality of user equipment devices. Moreover, carrier sensing results from a plurality of UEs can be reported a base station device via the first frequency in licensed spectrum. The base station device can then schedule multiple user multiple input, multiple output (MU-MIMO) transmissions to a plurality of UEs on the second frequency in unlicensed spectrum.

公开(公告)号：US11997041B2

公开(公告)日：2024-05-28

申请号：US16903452

申请日：2020-06-17

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

Inventor： Xiaoyi Wang ,  Ralf Bendlin ,  Arunabha Ghosh ,  SaiRamesh Nammi

IPC: H04L5/00

CPC classification number: H04L5/0053

Abstract: An early termination system for blind decoding is provided to decrease the computational resources utilized when decoding the physical resources, and decrease the time spent decoding. A blind decoding priority list can be used by the mobile device to preferentially decode specific physical resource elements as it specifies the order of all the candidate physical downlink control channels (PDCCHs). When the physical resource elements are decoded, if there is no more downlink control information in that transmission time interval, the downlink control information can include a termination bit, and the mobile device, upon identifying the termination bit can cease blind decoding of the remainder candidates. In this way, the blind decoding process more quickly identifies the downlink control information, and subsequent blind decoding is halted.

公开(公告)号：US20230217410A1

公开(公告)日：2023-07-06

申请号：US18112608

申请日：2023-02-22

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

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

IPC: H04W68/00 ,  H04W76/27 ,  H04W8/24 ,  H04W8/18

CPC classification number: H04W68/005 ,  H04W76/27 ,  H04W8/24 ,  H04W8/183

Abstract: Various embodiments disclosed that describe systems to facilitate paging an idle subscriber identity module using a connected subscriber identity module operating in a single radio configuration. According to some embodiments, a system can comprise receiving a paging request that is designated for a first device of a communication device, wherein the communication device comprises the first device and a second device; determining whether the second device is in an active state; and in response to the determining that the second device is in the active state, transmitting a message to second device indicating that the paging message was received for the first device.

公开(公告)号：US20230086340A1

公开(公告)日：2023-03-23

申请号：US17993244

申请日：2022-11-23

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

Inventor： Ralf Bendlin ,  Thomas Novlan ,  Arunabha Ghosh ,  Abdulrauf Hafeez

IPC: H04W88/06 ,  H04W74/08 ,  H04W72/04 ,  H04W16/14

Abstract: A closed loop carrier sense multiple access multiuser request to send and clear to send handshaking system is provided to efficiently allocate licensed and unlicensed spectrum for a plurality of mobile devices and across different base stations and mobile network operators. A user equipment device can be connected to a base station device via a first frequency in licensed spectrum, and a second frequency in unlicensed spectrum. The air interface on the first frequency can then be used to coordinate physical and virtual carrier sensing on a second frequency among a plurality of user equipment devices. Moreover, carrier sensing results from a plurality of UEs can be reported a base station device via the first frequency in licensed spectrum. The base station device can then schedule multiple user multiple input, multiple output (MU-MIMO) transmissions to a plurality of UEs on the second frequency in unlicensed spectrum.

公开(公告)号：US20230026727A1

公开(公告)日：2023-01-26

申请号：US17935946

申请日：2022-09-28

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

Inventor： Ralf Bendlin ,  SaiRamesh Nammi ,  Arunabha Ghosh ,  Xiaoyi Wang

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/00 ,  H04W16/14

Abstract: The disclosed subject matter is directed towards semi-static or dynamic shifting of New Radio demodulation reference signals to avoid collisions with LTE cell specific reference signals (LTE CRS) in a physical downlink shared channel symbol (PDSCH). In dynamic spread spectrum (DSS) deployments, where NR PDSCH mapping type B is used, e.g., to allow for two NR physical downlink control channel symbols, when the NR PDSCH starts on a symbol carrying LTE CRS, the NR DMRS of the NR PDSCH is shifted to the first symbol of the NR PDSCH not carrying LTE CRS. Whether mapping type A or mapping type B, shifting the symbol containing NR DMRS facilitates the use of two DMRS symbols without colliding with LTE CRS.