公开(公告)号：US20220345211A1

公开(公告)日：2022-10-27

申请号：US17241626

申请日：2021-04-27

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

Inventor： Jianchun Zhou ,  Ming Zhang ,  Sameer Sangal

IPC: H04B7/26 ,  H04W72/04

Abstract: The spectrum sharing dynamic mode switch in TDMA may allow for the transmission of only one radio mode per transmission time interval (TTI). Such system may address radio interference or retransmission (reTX) failures, among other things.

公开(公告)号：US20230299499A1

公开(公告)日：2023-09-21

申请号：US17655108

申请日：2022-03-16

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

Inventor： Jianchun Zhou ,  Yakun Gao ,  Ratish Upadhyay ,  Peter Doyle

IPC: H01Q17/00 ,  H04B7/0413 ,  H04W16/28

CPC classification number: H01Q17/001 ,  H04B7/0413 ,  H04W16/28

Abstract: Techniques for improved wireless throughput via beam reflection reduction are provided. A wireless communication device can include a device enclosure that at least partially encompasses an interior of the wireless communication device, the device enclosure comprising a cover assembly that defines a surface of the wireless communication device, wherein the cover assembly is composed of at least a first material; an antenna embedded within the interior of the wireless communication device substantially adjacent to the cover assembly, wherein the antenna is situated at a position relative to the cover assembly; and an aperture formed into the cover assembly at the position, wherein the aperture is not composed of the first material. Alternatively, the aperture can be coated with a non-reflective material that is distinct from the first material.

公开(公告)号：US20220338198A1

公开(公告)日：2022-10-20

申请号：US17235045

申请日：2021-04-20

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

Inventor： Jianchun Zhou ,  Wen Yang ,  Yakun Gao ,  Ye Chen

IPC: H04W72/04 ,  H04W72/10 ,  H04W74/08

Abstract: A method, system, computer readable storage medium, or apparatus provides for receiving a first message from a user equipment (UE), wherein the first message comprises an indication of one or more conditions, wherein the one or more conditions comprises an indication that the UE has a radio mode that comprises new radio (NR); determining a required idle period for long term evolution (LTE) for the UE; determining, based on the first message and the required idle period for LTE, a transmission time interval (TTI) for NR that corresponds to the required idle period for LTE; and sending, to the UE, a second message, wherein the second message comprises an indication of the TTI for NR.

公开(公告)号：US20220131637A1

公开(公告)日：2022-04-28

申请号：US17079729

申请日：2020-10-26

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

Inventor： Sameer Sangal ,  Jianchun Zhou

IPC: H04L1/00 ,  H04L5/00 ,  H04B17/318

Abstract: Aspects of the subject disclosure may include, for example, obtaining a first indication of a first count of resource blocks in a first cell in which the device is located, obtaining a second indication of a second count of resource blocks allocated to the device, obtaining a third indication of a reference signal received power (RSRP) value for the device, obtaining a fourth indication of a received signal strength indicator (RSSI) value for the device, computing a first reference signal received quality (RSRQ) value for the device based on the first indication, the second indication, the third indication, and the fourth indication, and transmitting a fifth indication of the first RSRQ value. Other embodiments are disclosed.

公开(公告)号：US12170930B2

公开(公告)日：2024-12-17

申请号：US17712874

申请日：2022-04-04

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

Inventor： Jianchun Zhou ,  Yakun Gao

IPC: H04W4/00 ,  H04W36/00 ,  H04W36/30

Abstract: Aspects of the subject disclosure may include, for example, determining a Reference Signal Received Power (RSRP) and a Signal to Noise Ratio (SNR) for a plurality of carriers at a user equipment (UE) device, the plurality of carriers transmitted by a source group of cells including a source primary cell (PCell) and one or more source secondary cells (SCells) associated with the source PCell, and initiating a handover of communication with the UE device from the source group of cells to a target group of cells, wherein the target group of cells includes a target PCell and one or more target SCells, wherein the initiating the handover is responsive to the RSRP exceeding a predetermined RSRP threshold and the SNR exceeding a predetermined SNR threshold. Other embodiments are disclosed.

公开(公告)号：US11770185B2

公开(公告)日：2023-09-26

申请号：US17241626

申请日：2021-04-27

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

Inventor： Jianchun Zhou ,  Ming Zhang ,  Sameer Sangal

IPC: H04B7/26 ,  H04W72/04 ,  H04W72/0446

CPC classification number: H04B7/2643 ,  H04W72/0446

Abstract: The spectrum sharing dynamic mode switch in TDMA may allow for the transmission of only one radio mode per transmission time interval (TTI). Such system may address radio interference or retransmission (reTX) failures, among other things.

公开(公告)号：US20220150177A1

公开(公告)日：2022-05-12

申请号：US17648435

申请日：2022-01-20

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

Inventor： Ming Zhang ,  Jianchun Zhou ,  Sameer Sangal

IPC: H04L47/36

Abstract: The described technology is generally directed towards selecting, by user equipment, a selected maximum transmission unit (MTU) packet size for wireless data transfer based on radio signal conditions. In one aspect, reference signal received power (RSRP) and reference signal received quality (RSRQ) are used to select the MTU packet size, e.g., by using RSRP and RSRQ as indices to a lookup table of predetermined MTU packet sizes, such as previously determined by field testing. In general, smaller MTU packet sizes are used with poorer quality radio signal conditions. The selected MTU packet size may be increased or decreased based on actual performance data and/or based on changed radio signal conditions, such as for a subsequent data transfer session. The user equipment may comprise a Cat-M device that transfers data related to Machine-Type Communications (MTC)/Machine to Machine (M2M) communications.

公开(公告)号：US11212726B2

公开(公告)日：2021-12-28

申请号：US16520055

申请日：2019-07-23

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

Inventor： Jianchun Zhou ,  Sameer Sangal

IPC: H04W36/20 ,  H04B17/336 ,  H04W36/08 ,  H04W36/24

Abstract: Determining to initiate a user equipment handover event based on a signal-to-interference-plus-noise ratio value is disclosed. The disclosed subject matter can employ the signal-to-interference-plus-noise ratio value in lieu of a reference signal receive power value. In an aspect, a handover based on the signal-to-interference-plus-noise ratio value can generally be determined faster and with greater reliability than basing the handover on the reference signal receive power value. In an aspect, some embodiments can substitute a determined uplink signal-to-interference-plus-noise ratio value for a downlink signal-to-interference-plus-noise ratio value. In some embodiments, a predicted signal-to-interference-plus-noise ratio value can be determined based on historical channel characteristics, hysterical wireless network environment features, or other historical data. A predicted signal-to-interference-plus-noise ratio value can be validated to a determined current signal-to-interference-plus-noise ratio value, permitting a validated predicted value to be employed until a next validation event.

公开(公告)号：US20190306072A1

公开(公告)日：2019-10-03

申请号：US15939892

申请日：2018-03-29

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

Inventor： Ming Zhang ,  Jianchun Zhou ,  Sameer Sangal

IPC: H04L12/805

Abstract: The described technology is generally directed towards selecting, by user equipment, a selected maximum transmission unit (MTU) packet size for wireless data transfer based on radio signal conditions. In one aspect, reference signal received power (RSRP) and reference signal received quality (RSRQ) are used to select the MTU packet size, e.g., by using RSRP and RSRQ as indices to a lookup table of predetermined MTU packet sizes, such as previously determined by field testing. In general, smaller MTU packet sizes are used with poorer quality radio signal conditions. The selected MTU packet size may be increased or decreased based on actual performance data and/or based on changed radio signal conditions, such as for a subsequent data transfer session. The user equipment may comprise a Cat-M device that transfers data related to Machine-Type Communications (MTC)/Machine to Machine (M2M) communications.

公开(公告)号：US20250062797A1

公开(公告)日：2025-02-20

申请号：US18449733

申请日：2023-08-15

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

Inventor： Jianchun Zhou ,  Yakun Gao ,  Ratish Upadhyay

IPC: H04B7/0413 ,  H04B7/06

Abstract: Aspects of the subject disclosure may include, for example, obtaining data, identifying one or more parameters impacting signaling between the device and network infrastructure, analyzing, based on the identifying, the one or more parameters to determine that multiple-input single-output (MISO) or multiple-input multiple-output (MIMO) is to be used in a conveyance of the data from the device to the network infrastructure, resulting in a determination, and utilizing, in accordance with the determination, MISO or MIMO to convey the data from the device to the network infrastructure, the utilizing incorporating cyclic delay diversity (CDD). Other embodiments are disclosed.