公开(公告)号：US20240127336A1

公开(公告)日：2024-04-18

申请号：US18046806

申请日：2022-10-14

Applicant: Microsoft Technology Licensing, LLC

Inventor： Prateesh GOYAL ,  Ilias MARINOS ,  Ranveer CHANDRA ,  Mark Eugene RUSSINOVICH

IPC: G06Q40/04

CPC classification number: G06Q40/04

Abstract: Examples are disclosed that relate to fairly ordering financial market trades received from different market participant computers via a cloud computing network. In one example, a plurality of trades generated by a plurality of market participant computers are received. The trades are generated based at least on a financial market data point received by the plurality of market participant computers. Each trade is tagged with a delivery clock time stamp that tracks time in relation to financial market events that occur at a corresponding market participant computer. The trades are ordered based on the delivery clock time stamps and sent to a central exchange server computer. The central exchange server computer processes the trades.

公开(公告)号：US20230388234A1

公开(公告)日：2023-11-30

申请号：US17825645

申请日：2022-05-26

Applicant: Microsoft Technology Licensing, LLC

Inventor： Anuj KALIA ,  Daehyeok KIM ,  Ilias MARINOS ,  Tao JI ,  Nikita LAZAREV ,  Paramvir BAHL

IPC: H04L45/76 ,  H04W40/34

CPC classification number: H04L45/76 ,  H04W40/34 ,  H04W84/045

Abstract: Methods and systems for dynamically re-routing layer traffic between different servers with little user-visible disruption and without modifications to the vRAN software stack are provided. This approach enables operators to initiate a PHY migration either on demand (e.g., during planned maintenances) or to set up automatic migration on unexpected events (e.g., server failures). It is recognized that PHY processing in cellular networks has no hard state that must be migrated. As a result, layer traffic such as the PHY-L2 traffic or L2-PHY traffic can be simply re-routed to a different server. This re-routing mechanism is realized by interposing one or more message controllers (e.g., middlebox) in a communication channel between the PHY and L2.

公开(公告)号：US20230412502A1

公开(公告)日：2023-12-21

申请号：US17825543

申请日：2022-05-26

Applicant: Microsoft Technology Licensing, LLC

Inventor： Anuj KALIA ,  Daehyeok KIM ,  Ilias MARINOS ,  Tao JI ,  Paramvir BAHL

IPC: H04L45/00 ,  H04L45/28

CPC classification number: H04L45/66 ,  H04L45/28

Abstract: Methods and systems for dynamically re-routing layer traffic between different servers with little user-visible disruption and without modifications to the vRAN software stack are provided. For instance, transformations on messages between the L2 and PHY, such as duplication and filtering, enable the system to maintain one or more low-overhead “hot, inactive” PHY clones. A hot, inactive PHY clone may be a duplicate of an operational PHY, where the PHY clone is primed to process a PHY workload of the operational PHY (e.g., “hot”) but is not currently responsible for processing the PHY workload (e.g., low-overhead, inactive). In this way, a PHY workload may be automatically and seamlessly migrated to the hot PHY clone in response to planned downtime (e.g., scheduled maintenance, software upgrades) or unexpected events (e.g., server failures) within the strict transmission time intervals (TTIs) required for processing the PHY workload.

公开(公告)号：US20220385577A1

公开(公告)日：2022-12-01

申请号：US17331782

申请日：2021-05-27

Applicant: Microsoft Technology Licensing, LLC

Inventor： Daehyeok KIM ,  Ilias MARINOS ,  Anuj KALIA ,  Manikanta KOTARU

IPC: H04L12/801 ,  H04L29/06 ,  H04L12/46 ,  H04L12/835 ,  H04W24/04 ,  H04W28/02

Abstract: Aspects of the present disclosure relate to allocating workloads to vRANs via programmable switches at far-edge cloud datacenters. Traditionally, traffic allocation is handled by dedicated servers running load-balancing software. However, rerouting RAN traffic to such servers increases both energy and capital costs, degrades end-to-end performance, and requires additional physical space, all of which are undesirable or even infeasible for a RAN far-edge datacenter. Since switches are located in the path of data traffic, workflow policies can be designed to inspect packet headers of incoming traffic, evaluate real-time network information, determine available vRAN instances, and update the packet headers to steer the incoming traffic for processing. As network conditions change, the workflow policies enable the switch to dynamically redirect workloads to alternative vRANs for processing. As a result, RAN processing efficiency and fault tolerance are improved—even with changing network conditions and spikes in data traffic.

公开(公告)号：US20220377563A1

公开(公告)日：2022-11-24

申请号：US17323653

申请日：2021-05-18

Applicant: Microsoft Technology Licensing, LLC

Inventor： Anuj KALIA ,  Ilias MARINOS ,  Daehyeok KIM ,  Paramvir BAHL

IPC: H04W16/02 ,  H04W28/08

Abstract: Described are examples for providing a distributed fault-tolerant state store for a virtualized base station. In an aspect, a first server at a datacenter may perform physical layer processing for at least one virtualized base station. While performing the physical layer processing, the first server may generate inter-slot physical layer state data during a first slot. The inter-slot physical layer state data is to be used in a subsequent slot. The first server may periodically transmit the inter-slot physical layer state data to one or more other servers of the plurality of servers within the datacenter. One of the other servers may take over the physical layer processing for the at least one virtualized base station based on the inter-slot physical layer state data, for example, in response to a fault at the first server or a migration of the at least one virtualized base station.