公开(公告)号：US09603141B2

公开(公告)日：2017-03-21

申请号：US14679913

申请日：2015-04-06

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Runhua Chen ,  Eko N. Onggosanusi ,  Vikram Chandrasekhar ,  Anthony Edet Ekpenyong

IPC: H04W4/00 ,  H04W72/04 ,  H04J11/00 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04J11/0033 ,  H04L1/1812 ,  H04L5/0023 ,  H04L5/0053 ,  H04L27/2601 ,  H04W72/14 ,  H04W88/02

Abstract: A wireless transmission system included at least one user equipment and a base station. The base station is operable to form a downlink control information block, modulate the downlink control information, precode the modulated downlink control information, and transmit the precoded, modulated downlink control information on at least one demodulation reference signal antenna port to the at least one user equipment. The precoded, modulated downlink control information is mapped to a set of N1 physical resource block pairs in a subframe from an orthogonal frequency division multiplexing symbol T1 to and orthogonal frequency division multiplexing symbol T2.

公开(公告)号：US09473219B2

公开(公告)日：2016-10-18

申请号：US14588235

申请日：2014-12-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Tarik Muharemovic ,  Zukang Shen ,  Anthony Edet Ekpenyong

IPC: H04B7/02 ,  H04W56/00 ,  H04L12/26

CPC classification number: H04B7/024 ,  H04L43/0852 ,  H04W56/0045 ,  H04W56/0065

Abstract: This invention measures the propagation delay τ1 between the user equipment and a first cooperating unit and the propagation delay τ2 between the user equipment and a second cooperating unit. These propagation delays are used to compute a timing advance amount to the user equipment to enable coordinated multi-point reception. In a first embodiment one cooperating unit receives a function of the propagation delay, computes the timing advance amount and transmits a timing advance command to the user equipment. In a second embodiment a central unit performs these operations.

公开(公告)号：US11770776B2

公开(公告)日：2023-09-26

申请号：US16272838

申请日：2019-02-11

Applicant: Texas Instruments Incorporated

Inventor： Anthony Edet Ekpenyong ,  Ralf Matthias Bendlin ,  Pierre Bertrand

IPC: H04W52/32 ,  H04W74/08 ,  H04W52/28 ,  H04W52/40 ,  H04W52/48

CPC classification number: H04W52/325 ,  H04W74/0833 ,  H04W52/281 ,  H04W52/40 ,  H04W52/48

Abstract: Systems and methods for specifying UE power control allocation for simultaneous transmission of PRACH in a secondary serving cell and PUCCH/PUSCH/SRS in a different serving cell in another timing advance group are disclosed. Rules are provided for prioritizing transmission of PRACH and/or other UL channels/signals. Additionally, UE power allocation is controlled for misaligned subframes across different timing advance groups. Latency of UL synchronization for a secondary serving cell is reduced by prioritizing PRACH retransmission.

公开(公告)号：US20220030610A1

公开(公告)日：2022-01-27

申请号：US17498413

申请日：2021-10-11

Applicant: Texas Instruments Incorporated

Inventor： Runhua Chen ,  Eko N. Onggosanusi ,  Vikram Chandrasekhar ,  Anthony Edet Ekpenyong

IPC: H04W72/12 ,  H04W72/14 ,  H04W72/04 ,  H04L5/00

Abstract: A wireless transmission system included at least one user equipment and a base station. The base station is operable to form a downlink control information block, modulate the downlink control information, precode the modulated downlink control information, and transmit the precoded, modulated downlink control information on at least one demodulation reference signal antenna port to the at least one user equipment. The precoded, modulated downlink control information is mapped to a set of N1 physical resource block pairs in a subframe from an orthogonal frequency division multiplexing symbol T1 to and orthogonal frequency division multiplexing symbol T2.

公开(公告)号：US11139905B2

公开(公告)日：2021-10-05

申请号：US16505066

申请日：2019-07-08

Applicant: Texas Instruments Incorporated

Inventor： Runhua Chen ,  Eko N. Onggosanusi ,  Ralf Matthias Bendlin ,  Anthony Edet Ekpenyong

IPC: H04J11/00

Abstract: Embodiments of the invention are directed to a cellular communication network that can determine whether communications between one base station-UE pair may interfere with another UE that is in the same cell or a different cell. The network identifies interference parameters associated with interference signals that may be received by a UE. The interference signals may be generated by the base station itself, such as communications with other UEs, or by a neighboring base station. The base station transmits the interference parameters to the UE. The UE receives the one or more parameters comprising information about signals expected to cause intra-cell or inter-cell interference. The UE then processes received signals using the one or more parameters to suppress the intra-cell or inter-cell interference.

公开(公告)号：US20200092909A1

公开(公告)日：2020-03-19

申请号：US16687398

申请日：2019-11-18

Applicant: Texas Instruments Incorporated

Inventor： Anthony Edet Ekpenyong

IPC: H04W72/14 ,  H04L1/18 ,  H04L5/00

Abstract: Embodiments of the invention are directed to a method for operating a mobile device including establishing a connection to a first base station designated as a PCell and establishing a connection to a second base station designated as a SCell. When the mobile device receives PDSCH from a TDD SCell in a subframe n, it transmits a HARQ ACK to an FDD PCell in subframe n+4. When the mobile device receives PDSCH in a downlink subframe from an FDD SCell, it transmits a HARQ ACK corresponding to the PDSCH to a TDD PCell in a selected uplink subframe. The selected uplink subframe may be the first valid uplink subframe following the downlink subframe. For example, where the downlink subframe carrying the PDSCH is subframe n, and the selected uplink subframe is subframe n+k, where k≥4.

公开(公告)号：US10485019B2

公开(公告)日：2019-11-19

申请号：US15645262

申请日：2017-07-10

Applicant: Texas Instruments Incorporated

Inventor： Anthony Edet Ekpenyong

IPC: H04W72/14 ,  H04L5/00 ,  H04L1/18 ,  H04L5/14 ,  H04W76/15

Abstract: Embodiments of the invention are directed to a method for operating a mobile device including establishing a connection to a first base station designated as a PCell and establishing a connection to a second base station designated as a SCell. When the mobile device receives PDSCH from a TDD SCell in a subframe n, it transmits a HARQ ACK to an FDD PCell in subframe n+4. When the mobile device receives PDSCH in a downlink subframe from an FDD SCell, it transmits a HARQ ACK corresponding to the PDSCH to a TDD PCell in a selected uplink subframe. The selected uplink subframe may be the first valid uplink subframe following the downlink subframe. For example, where the downlink subframe carrying the PDSCH is subframe n, and the selected uplink subframe is subframe n+k, where k≥4.

公开(公告)号：US20190313259A1

公开(公告)日：2019-10-10

申请号：US16449939

申请日：2019-06-24

Applicant: Texas Instruments Incorporated

Inventor： Ralf Matthias Bendlin ,  Anthony Edet Ekpenyong ,  Pierre Bertrand ,  Brian F. Johnson

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

Abstract: A method of operating a long term evolution (LTE) communication system on a shared frequency spectrum is disclosed. A user equipment (UE) is initialized on an LTE frequency band. A base station (eNB) monitors the shared frequency spectrum to determine if it is BUSY. The eNB transmits to the UE on the shared frequency spectrum if it is not BUSY. The eNB waits for a first time if it is BUSY and directs the UE to vacate the shared frequency spectrum after the first time.

公开(公告)号：US10412760B2

公开(公告)日：2019-09-10

申请号：US15645952

申请日：2017-07-10

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anthony Edet Ekpenyong

IPC: H04W72/14 ,  H04L1/18 ,  H04L5/00 ,  H04L5/14 ,  H04W76/15

Abstract: Embodiments of the invention are directed to a method for operating a mobile device including establishing a connection to a first base station designated as a PCell and establishing a connection to a second base station designated as a SCell. When the mobile device receives PDSCH from a TDD SCell in a subframe n, it transmits a HARQ ACK to an FDD PCell in subframe n+4. When the mobile device receives PDSCH in a downlink subframe from an FDD SCell, it transmits a HARQ ACK corresponding to the PDSCH to a TDD PCell in a selected uplink subframe. The selected uplink subframe may be the first valid uplink subframe following the downlink subframe. For example, where the downlink subframe carrying the PDSCH is subframe n, and the selected uplink subframe is subframe n+k, where k≥4.

公开(公告)号：US10348432B2

公开(公告)日：2019-07-09

申请号：US14285759

申请日：2014-05-23

Applicant: Texas Instruments Incorporated

Inventor： Runhua Chen ,  Eko N. Onggosanusi ,  Ralf Matthias Bendlin ,  Anthony Edet Ekpenyong

IPC: H04J11/00

Abstract: Embodiments of the invention are directed to a cellular communication network that can determine whether communications between one base station-UE pair may interfere with another UE that is in the same cell or a different cell. The network identifies interference parameters associated with interference signals that may be received by a UE. The interference signals may be generated by the base station itself, such as communications with other UEs, or by a neighboring base station. The base station transmits the interference parameters to the UE. The UE receives the one or more parameters comprising information about signals expected to cause intra-cell or inter-cell interference. The UE then processes received signals using the one or more parameters to suppress the intra-cell or inter-cell interference.