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：US10536879B2

公开(公告)日：2020-01-14

申请号：US15932240

申请日：2018-02-16

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

Inventor： SaiRamesh Nammi ,  Ralf Bendlin ,  Arunabha Ghosh

IPC: H04W28/06 ,  H04L1/00 ,  H04L1/18 ,  H04W28/04 ,  H03M13/00

Abstract: An adaptive downlink control channel structure is utilized for control channel transmission for 5G and other next generation wireless systems. Moreover, the adaptive downlink control channel structure can utilize a reduced length/size to decrease signaling overhead for each transport block. In an aspect, a first downlink control channel structure for a data transmission can be utilized to implicitly indicate redundancy version (RV) and a second downlink control channel structure for a subsequent data transmission can be utilized to explicitly indicate the RV. In another aspect, the RV can be indicative via an adaptive bit load. Further, in yet another aspect, the RV can be indicated based on a joint encoding of RV and new data indicator (NDI) information.

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：US10355813B2

公开(公告)日：2019-07-16

申请号：US15432515

申请日：2017-02-14

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

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

IPC: H04W4/00 ,  H04L1/00

Abstract: Link adaptation on downlink control channels is provided herein. A method can comprise sending, by a network device of a wireless network and comprising a processor, first data indicating a first downlink control channel to a mobile device. The first data indicating the downlink control channel can comprise a first coreset indication that comprises a first parameter used to decode the first downlink control channel at the mobile device. The method can also include determining, by the network device, a second coreset indication for the mobile device. The second coreset indication can comprise a second parameter that can be adaptively determined based on a condition of an environment determined to be associated with the mobile device.

公开(公告)号：US10314082B2

公开(公告)日：2019-06-04

申请号：US15925822

申请日：2018-03-20

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：US10278168B2

公开(公告)日：2019-04-30

申请号：US15587155

申请日：2017-05-04

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

Inventor： Ralf Bendlin ,  Xiaoyi Wang ,  SaiRamesh Nammi

IPC: H04W72/04 ,  H04W24/02

Abstract: Various embodiments disclosed herein provide for multi-stage segmentation of downlink control information. Downlink control information can arrive at a user equipment on more than one channel, setting up and configuring data channels for different base stations, or data channels for the same base station but where the data channels are in different frequency domains or time domains. The downlink control information segmentation system disclosed herein can determine when downlink control information for the user equipment is common across a plurality of downlink control channels, and ensure that the downlink control information is sent just one time, to avoid redundant data transmissions and increased overhead.

公开(公告)号：US20190116506A1

公开(公告)日：2019-04-18

申请号：US15783810

申请日：2017-10-13

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

Inventor： Ralf Bendlin ,  Thomas Novlan ,  Arunabha Ghosh ,  Saeed Ghassemzadeh

IPC: H04W24/02 ,  H04W24/08 ,  H04W64/00 ,  H04B17/318

Abstract: An example method may include a processing system of a cellular network having a processor receiving, from a mobile endpoint device, a measurement of a performance indicator, a location, and spatial orientation information, the measurement of the performance indicator based upon at least one wireless signal from a base station of the cellular network, and adjusting at least one aspect of the cellular network in response to the measurement of the performance indicator, the location, and the spatial orientation information. Another example method may include a processing system of a mobile endpoint device having a processor receiving a wireless signal from a base station of a cellular network, capturing a measurement of a performance indicator based upon the wireless signal, recording a location and spatial orientation information, and transmitting to the cellular network the measurement of the performance indicator, the location, and the spatial orientation information.

公开(公告)号：US20190058533A1

公开(公告)日：2019-02-21

申请号：US15678056

申请日：2017-08-15

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

Inventor： Arunabha Ghosh ,  Ralf Bendlin ,  Saeed Ghassemzadeh ,  Thomas Novlan ,  Salam Akoum ,  SaiRamesh Nammi ,  Xiaoyi Wang

IPC: H04B17/309

CPC classification number: H04B17/309 ,  H04B17/12 ,  H04B17/318 ,  H04B17/3912 ,  H04W68/005 ,  H04W72/0446 ,  H04W72/0453

Abstract: An example method may include a processing system of a base station having a processor selecting a blank resource of a time and frequency resource grid of the base station for a transmission of a channel sounding waveform and transmitting the channel sounding waveform via the blank resource. Another example method may include a processing system of a channel sounding receiver receiving at a location, from a base station, a channel sounding waveform via a blank resource of a time and frequency resource grid of the base station, and measuring a channel property at the location based upon the channel sounding waveform.

公开(公告)号：US20190053128A1

公开(公告)日：2019-02-14

申请号：US16016226

申请日：2018-06-22

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

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

IPC: H04W48/12 ,  H04L5/00 ,  H04W48/10 ,  H04W74/00

Abstract: A system facilitating compact signaling design for reserved resource configuration via a multi-dimensional bitmap is provided for a wireless communication system. A method comprises: determining a multi-dimensional bitmap (MDB) in time and frequency domains, wherein the time domain is represented by an orthogonal frequency division multiplexed (OFDM) symbol and the frequency domain is represented by an OFDM subcarrier. The determining comprises: selecting a group of reserved resource allocations of the MDB in which data information is not to be communicated; assigning a first value for the OFDM multiplexed symbol and the OFDM subcarrier according to a location of elements of the group of reserved resource allocations; and assigning, to other portions of the MDB other than the group of reserved resource allocations, a second value distinct from the first value. The method also comprises facilitating, by the device, transmitting the MDB to a mobile device.

公开(公告)号：US20180359737A1

公开(公告)日：2018-12-13

申请号：US16106646

申请日：2018-08-21

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

Inventor： Xiaoyi Wang ,  Ralf Bendlin

IPC: H04W72/04 ,  H04W72/12 ,  H04L27/26 ,  H04L5/00 ,  H04L1/18

CPC classification number: H04W72/042 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0057 ,  H04L5/0094 ,  H04L5/0096 ,  H04L27/2601 ,  H04W72/1273

Abstract: A system employing resource element mapping for efficient use of the downlink control channel is provided for a wireless communication system. In one example, a method comprises: generating, by a base station device comprising a processor, resource element mapping signaling, wherein the resource element mapping signaling is performed per subgroup of physical resource blocks of a group of physical resource blocks; transmitting, by the base station device, a first resource element mapping pattern to a first subgroup of the group of physical resource blocks; and transmitting, by the base station device, a second resource element mapping pattern to a second subgroup of the group of physical resource blocks, wherein the first resource element mapping pattern is distinct from the second resource element mapping pattern.