公开(公告)号：US11570758B2

公开(公告)日：2023-01-31

申请号：US17391436

申请日：2021-08-02

Applicant: DISH Wireless L.L.C.

Inventor： Mehdi Alasti ,  Siddhartha Chenumolu ,  Mariam Sorond

IPC: H04W4/00 ,  H04W72/02 ,  H04L1/18 ,  H04J11/00 ,  H04W72/04 ,  H04W72/12 ,  H04W84/04

Abstract: Various arrangements for performing uplink grant-free transmissions are presented herein. An instance of user equipment (UE) may determine data that is to be transmitted using a grant-free (GF) uplink transmission to a base station of a cellular network. The UE may select a first GF resource block and a second GF resource block. The UE may transmit GF transmissions that comprise: a data payload and a first pointer at the first GF resource block; and the data payload and a second pointer at the second GF resource block. The first pointer may refer to the second GF resource block, while the second pointer may refer to the first GP resource block.

公开(公告)号：US11477694B1

公开(公告)日：2022-10-18

申请号：US17459279

申请日：2021-08-27

Applicant: DISH Wireless L.L.C.

Inventor： Mehdi Alasti ,  Kazi Bashir ,  Ash Khamas ,  Ashish Bansal ,  Siddhartha Chenumolu

IPC: H04W48/18 ,  H04W28/08 ,  H04L47/125 ,  H04L47/127 ,  H04L41/16 ,  H04L47/215

Abstract: Embodiments are directed towards systems and methods for user plane function (UPF) and network slice load balancing within a 5G network. Example embodiments include systems and methods for load balancing based on current UPF load and thresholds that depend on UPF capacity; UPF load balancing using predicted throughput of new UE on the network based on network data analytics; UPF load balancing based on special considerations for low latency traffic; UPF load balancing supporting multiple slices, maintaining several load-thresholds for each UPF and each slice depending on the UPF and network slice capacity; and UPF load balancing using predicted central processing unit (CPU) utilization and/or predicted memory utilization of new UE on the network based on network data analytics.

公开(公告)号：US20220158721A1

公开(公告)日：2022-05-19

申请号：US17592059

申请日：2022-02-03

Applicant: DISH Wireless L.L.C.

Inventor： Mehdi Alasti ,  Siddhartha Chenumolu ,  Mariam Sorond

IPC: H04B7/185 ,  H04W76/27 ,  H04B7/08 ,  H04W28/20 ,  H04W36/30 ,  H04W72/04

Abstract: A method and apparatus for non-terrestrial network beam switching is provided. A non-terrestrial network base station includes a transmitter configured to transmit downlink data to user equipment and a receiver configured to receive uplink data from the user equipment. A channel bandwidth of the non-terrestrial network base station is divided into a plurality of bandwidth parts respectively corresponding to a plurality of geographic areas, and each bandwidth part is respectively associated with a satellite beam. When the user equipment is located in a first geographic area, the transmitter transmits the downlink data to the user equipment over a corresponding first bandwidth part. After the user equipment transitions from the first geographic area to a second geographic area, the transmitter transmits the downlink data to the user equipment over a corresponding second bandwidth part of the plurality of bandwidth parts.

公开(公告)号：US11277802B2

公开(公告)日：2022-03-15

申请号：US16689911

申请日：2019-11-20

Applicant: DISH WIRELESS L.L.C.

Inventor： Mehdi Alasti ,  Siddhartha Chenumolu ,  Mariam Sorond

IPC: H04W52/20 ,  H04W52/14 ,  H04W52/22 ,  H04B7/185 ,  H04L5/00 ,  H04W52/24

Abstract: Systems and methods for controlling uplink power in a non-terrestrial network (NTN). An NTN station transmits a reference signal at a first time having a defined transmission power and the reference signal is received by non-terrestrial user equipment. The user equipment evaluates the reference signal and determines a first downlink loss of the reference signal by calculating a difference between a measured power level of the received reference signal and the defined transmission power. The NTN station transmits a communication signal at a second time and is received by the user equipment, which estimates a second downlink loss of the communication signal based on the first downlink loss and a power level of the communication signal. A first uplink loss is estimated based on the second downlink loss, and the user equipment adjusts a transmission power of its transmitter based on the first uplink loss.

公开(公告)号：US11252719B2

公开(公告)日：2022-02-15

申请号：US16860705

申请日：2020-04-28

Applicant: DISH Wireless L.L.C.

Inventor： Mehdi Alasti ,  Mariam Sorond ,  Siddhartha Chenumolu

IPC: H04W4/40 ,  H04W72/04 ,  H04W28/02 ,  H04W84/00 ,  H04W84/04

Abstract: Various arrangements for using multiple air interfaces on a frequency channel for side-link communications are presented. A first indication of a first time-window of a first resource pool may be transmitted by a first air interface system. A second indication of a second time-window of a second resource pool may be transmitted by a second air interface system. Side-link communications may be performed using the first air interface during only the first time-window of the first resource pool. Side-link communications may be performed using the second air interface during only the second time-window of the second resource pool.

公开(公告)号：US20210360613A1

公开(公告)日：2021-11-18

申请号：US17443866

申请日：2021-07-28

Applicant: DISH Wireless L.L.C.

Inventor： Farhad Bassirat ,  Mariam Sorond ,  Siddhartha Chenumolu ,  Mehdi Alasti

IPC: H04W72/04 ,  H04B17/318

Abstract: Various arrangements for improving cell coverage are presented. A cellular network can define a first bandwidth part and a second bandwidth part to be implemented concurrently by a base station of the cellular network. The first bandwidth part and the second bandwidth part do not overlap and may be separated by a guard band. The first bandwidth part can have a greater bandwidth and greater sub-carrier spacing than the second bandwidth part. The cellular network can determine a first set of user equipment to use the first bandwidth part for communication with the base station and a second set of user equipment to use the second bandwidth part for communication with the base station. Communication with the first set of user equipment using the first bandwidth part and the second set of user equipment using the second bandwidth part may be performed.

公开(公告)号：US11044702B2

公开(公告)日：2021-06-22

申请号：US16277147

申请日：2019-02-15

Applicant: DISH Wireless L.L.C.

Inventor： Mehdi Alasti ,  Mariam Sorond ,  Siddhartha Chenumolu

IPC: H04W72/02 ,  H04W72/04 ,  H04W74/00 ,  H04L1/00 ,  H04L1/18 ,  H04J11/00 ,  H04W72/12 ,  H04W84/04

Abstract: Various arrangements for using multiple grant-free transmission configurations are presented. A cellular network may assign multiple grant-free transmission configurations to an instance of user equipment. The cellular network may receive a set of data according to the first grant-free transmission configuration and a replication of the set of data according to the second grant-free transmission configuration.

公开(公告)号：US20210185699A1

公开(公告)日：2021-06-17

申请号：US16717123

申请日：2019-12-17

Applicant: DISH Wireless L.L.C.

Inventor： Mehdi Alasti ,  Antti Immonen ,  Siddhartha Chenumolu

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/10

Abstract: A system for scheduling wireless data transmissions divides a band allocated to the mobile service carrier into two overlapping bands. Then each user equipment (UE) of a plurality of UEs that connects to the ground-based network of the mobile service carrier is assigned to one of the two overlapping bands. The system allocates at a given scheduling time, physical resource blocks (PRBs) to UEs up to a maximum number of PRBs available for the particular overlapping frequency band to which the UE is assigned based on a metric for the UE that is a ratio of a downlink channel quality indicator for the UE to the average data rate of the UE at the given time, giving higher priority for PRB allocation to UEs that have a larger metric than other UEs of the plurality of UEs.

公开(公告)号：US20210136766A1

公开(公告)日：2021-05-06

申请号：US17148945

申请日：2021-01-14

Applicant: DISH Wireless L.L.C.

Inventor： Farhad Bassirat ,  Mariam Sorond ,  Siddhartha Chenumolu ,  Mehdi Alasti

IPC: H04W72/04 ,  H04B17/318 ,  H04L27/26 ,  H04L5/00

Abstract: Various arrangements for transitioning the bandwidth allocation of a cellular network, such as at a base station, are presented. Bandwidth parts may be defined for communication with the cellular network, such as on a per-base station basis. At a given time, two of these bandwidth parts may be actively used for communication by different UE for communication with the base station. A determination to adjust a bandwidth allocation may be made. A series of transitions may be performed to migrate from the first two of these bandwidth parts to the second two of the bandwidth parts such that interference does not occur.

公开(公告)号：US20210058145A1

公开(公告)日：2021-02-25

申请号：US16694578

申请日：2019-11-25

Applicant: DISH Wireless L.L.C.

Inventor： Mehdi Alasti ,  Siddhartha Chenumolu ,  Mariam Sorond

IPC: H04B7/185 ,  H04W28/20 ,  H04B7/08 ,  H04W36/30 ,  H04W76/27 ,  H04W72/04

Abstract: A method and apparatus for non-terrestrial network beam switching is provided. A non-terrestrial network base station includes a transmitter configured to transmit downlink data to user equipment and a receiver configured to receive uplink data from the user equipment. A channel bandwidth of the non-terrestrial network base station is divided into a plurality of bandwidth parts respectively corresponding to a plurality of geographic areas, and each bandwidth part is respectively associated with a satellite beam. When the user equipment is located in a first geographic area, the transmitter transmits the downlink data to the user equipment over a corresponding first bandwidth part. After the user equipment transitions from the first geographic area to a second geographic area, the transmitter transmits the downlink data to the user equipment over a corresponding second bandwidth part of the plurality of bandwidth parts.