公开(公告)号：US20230344609A1

公开(公告)日：2023-10-26

申请号：US18336389

申请日：2023-06-16

Applicant: DISH Wireless L.L.C.

Inventor： Dhaval Mehta ,  Farhad Bassirat ,  Siddhartha Chenumolu ,  Amit Pathania

IPC: H04L5/00 ,  H04W28/02 ,  H04W24/08 ,  H04W48/18

CPC classification number: H04L5/0092 ,  H04L5/0096 ,  H04W28/0221 ,  H04W24/08 ,  H04W48/18

Abstract: Systems and methods of adaptive bandwidth (BW) management are provided by a control unit of distribution and central units to monitor power and traffic loads at a plurality of network nodes; a BW management unit communicating with the control unit to reassign a set of network slices with a set of smaller bandwidth parts (BWPs); the BW management unit configured to define a smaller BWP from a slice mapping for the slice reassignment during a AC power outage, the slicing mapping includes network slices tied to smaller BWPs in the network; and the BW management unit configured to adapt BW for users at the node by reassigning of at least one network slice with a defined smaller BWP at the node in response to a condition determined by the BW management unit, the condition of at least one of a AC power outage and reduced traffic load.

公开(公告)号：US20230308902A1

公开(公告)日：2023-09-28

申请号：US17705128

申请日：2022-03-25

Applicant: DISH Wireless L.L.C.

Inventor： Frank Tao Yu ,  Farhad Bassirat

IPC: H04W24/02 ,  H04W52/02 ,  H04W76/10

CPC classification number: H04W24/02 ,  H04W52/0212 ,  H04W76/10 ,  H04W84/04

Abstract: Disclosed is a method of operating a Radio Access Network (RAN) including a Radio Unit (RU), a first Distributed Unit (DU), a second DU that functions as a dynamic standby DU, and a network management device. After the RU transmits data to the first DU using a configuration parameter set to an address of the first DU, the RU detects an outage of the first DU. In response to detecting the outage, the RU transmits to the network management device a message indicating detection of the outage. In response, the network management device configures the second DU to perform the functions of the first DU, and causes the second DU to request the RU to set the configuration parameter to an address of the second DU. The RU then uses the configuration parameter set to the address of the second DU to transmit data to the second DU.

公开(公告)号：US11689341B2

公开(公告)日：2023-06-27

申请号：US17647947

申请日：2022-01-13

Applicant: DISH Wireless L.L.C.

Inventor： Dhaval Mehta ,  Farhad Bassirat ,  Siddhartha Chenumolu ,  Amit Pathania

IPC: H04W24/08 ,  H04L5/00 ,  H04W28/02 ,  H04W48/18

CPC classification number: H04L5/0092 ,  H04L5/0096 ,  H04W24/08 ,  H04W28/0221 ,  H04W48/18

Abstract: Systems and methods of adaptive bandwidth (BW) management are provided by a control unit of distribution and central units to monitor power and traffic loads at a plurality of nodes in a network; a BW management unit communicating with the control unit to reassign a set of network slices with a set of smaller bandwidth parts (BWPs); the BW management unit configured to define a smaller BWP from a slice mapping for the slice reassignment during a AC power outage, the slicing mapping includes network slices tied to smaller BWPs in the network; and the BW management unit configured to adapt BW for users at the node by reassigning of at least one network slice with a defined smaller BWP at the node in response to a condition determined by the BW management unit, the condition of at least one of a AC power outage, and reduced traffic load at the node.

公开(公告)号：US11464012B2

公开(公告)日：2022-10-04

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 ,  H04L5/00 ,  H04L27/26

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：US11109382B2

公开(公告)日：2021-08-31

申请号：US16518863

申请日：2019-07-22

Applicant: DISH Wireless L.L.C.

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

IPC: H04J1/16 ,  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：US12267728B2

公开(公告)日：2025-04-01

申请号：US18299611

申请日：2023-04-12

Applicant: DISH Wireless L.L.C.

Inventor： Dhaval Mehta ,  Farhad Bassirat ,  Siddhartha Chenumolu ,  Amit Pathania

IPC: H04W28/20 ,  H04W52/02

Abstract: Systems, methods, and devices dynamically allocate bandwidth parts in response to conditions at cell sites. An example process assigns a first plurality of slices and a second plurality of slices to communicate on a bandwidth of a cell site. The cell site operates at a first level of power consumption. A changed operating state is detected at the cell site, and the first plurality of slices is assigned to communicate on a bandwidth part of the cell site in response to detecting the changed operating state. The bandwidth part is a subset of the bandwidth. The cell site operates at a second level of power consumption in response to assigning the plurality of slices to communicate on the bandwidth part. The second level of power consumption is less than the first level of power consumption.

公开(公告)号：US20250106731A1

公开(公告)日：2025-03-27

申请号：US18971622

申请日：2024-12-06

Applicant: DISH Wireless L.L.C.

Inventor： Tao Yu ,  Dhaval Mehta ,  Farhad Bassirat ,  Ash Khamas

IPC: H04W40/24 ,  H04W40/28 ,  H04W88/08 ,  H04W92/12

Abstract: Various examples of automated processes, computing systems, devices and other aspects of a wireless data network are disclosed herein. According to various embodiments, message flooding in the wireless network is reduced through the use of “dummy” messages from the radio unit (RU) to the distributed unit (DU) or layer two (L2) switch. The dummy messages tend to prevent timeout of the RU's data in the L2 switch's routing tables, thereby prolonging the period of time that the L2 switch is able to more efficiently direct subsequent traffic toward that particular device.

公开(公告)号：US12200601B2

公开(公告)日：2025-01-14

申请号：US17877604

申请日：2022-07-29

Applicant: DISH Wireless L.L.C.

Inventor： Tao Yu ,  Dhaval Mehta ,  Farhad Bassirat ,  Ash Khamas

IPC: H04W4/00 ,  H04W40/24 ,  H04W40/28 ,  H04W88/08 ,  H04W92/12

Abstract: Automated processes, computing systems, devices and other aspects of a wireless data network are described. According to various embodiments, message flooding in the wireless network is reduced through the use of “dummy” messages from the radio unit (RU) to the distributed unit (DU) and/or layer two (L2) switch. The dummy messages prevent timeout of the RU's data in the L2 switch's routing tables, thereby prolonging the period of time that the L2 switch is able to more efficiently direct subsequent traffic toward that particular device.

公开(公告)号：US12108492B2

公开(公告)日：2024-10-01

申请号：US18121477

申请日：2023-03-14

Applicant: DISH Wireless L.L.C.

Inventor： Farhad Bassirat ,  Frank Tao Yu

IPC: H04W84/02 ,  H04L41/0654 ,  H04L61/5076 ,  H04L101/622 ,  H04W88/08

CPC classification number: H04W84/02 ,  H04L41/0654 ,  H04L61/5076 ,  H04L2101/622 ,  H04W88/085

Abstract: When a failed connection is detected from a first radio unit (RU) to the cellular site router (CSR), activation of an existing backup cabled connection from the first RU to the CSR through a cabled connection between the first RU and a second RU of the cellular telecommunications tower may be performed. In one example, a first RU and second RU each have two physical network ports. The activation of the existing backup cabled connection from the first RU, via the second RU, to the CSR may include causing the first RU to enter from a normal operating mode into an Open Radio Access Network (O-RAN) cascade operating mode to attempt to attain network connectivity for the first RU using the second physical network port of the first RU.

公开(公告)号：US20240314579A1

公开(公告)日：2024-09-19

申请号：US18677418

申请日：2024-05-29

Applicant: DISH Wireless L.L.C.

Inventor： Zulfiquar Sayeed ,  Farhad Bassirat ,  Premchand Chandran ,  Dhaval Mehta ,  Tao Yu ,  Sang Boh Yun

IPC: H04W16/18 ,  H04W40/04 ,  H04W88/08

CPC classification number: H04W16/18 ,  H04W40/04 ,  H04W88/08

Abstract: Various arrangements for updating a radio unit (RU) of a cellular network are presented. A volume of cellular signals being handled by a first programmable processor of the RU and a second programmable processor of the RU may be analyzed. A determination can be made that one of the processors has sufficient available resources to handle the analyzed volume of cellular signals. The RU can cause cellular signals to be rerouted to one of the programmable processors while the other processor is taken offline for updating. The update process is performed such that UE in communication with the RU experience uninterrupted cellular network access.