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92 results about "Downgrade" patented technology

In computing, downgrading refers to reverting software (or hardware) back to an older version; downgrade is the opposite of upgrade. Often, complex programs may need to be downgraded to remove unused or bugged features, and to increase speed and/or ease of use. The same can occur with machinery.

Method of link adaptation in enhanced cellular systems to discriminate between high and low variability

Method to perform link adaptation at the radio interfaces of an enhanced packet data cellular network handling several Modulation and Coding Schemes (MCS) for maximizing data throughput. In a preliminary off-line step the system behaviour, in terms of net throughput of the various available MCSs, is simulated for different C / l conditions. From the simulation two sets of tables are obtained, each table including upgrade and downgrade thresholds expressed in terms of Block Error Rate (BLER). Thresholds correspond to switching points from an MCs to the two available MCSs having the immediate less or more protection. The two sets of tables are referred to higher or lower diversity RF environments and are further specialized for taking into account EGPRS type II hybrid ARQ, namely Incremental Redundancy (IR). During transmission the transmitted blocks are checked for FEC and the results are sent to the network. The network continuously updates BLER using exponential smoothing. In order to achieve the correct time response, in spite of that RLC blocks can be received or not, a reliability filter is provided whose output is used to decide the weight between the new and old measurements to make the BLER filter impulse response exponentially decreasing with time. The IR efficiency is tested for each incoming block and an indicative variable IR status is filtered using the same approach used for BLER. Each actual threshold of BLER to be used in link adaptation is obtained by a linear interpolation between the tabulated threshold without IR and with perfect IR, both weighed with filtered IR status. Filtered BLER is then compared with said interpolated thresholds for testing the incoming of a MCS switching condition. Power control pursues the goal of maintaining constant QoS peak throughput per time slot(Fig 16).
Owner:SIEMENS INFORMATION & COMM NEWTWORKS INC

Non-disruptive upgrade configuration translator

Implementations are provided herein for non-disruptive upgrade including rollback capabilities for a distributed file system within a cluster of nodes. To continue availability of the file system to external clients during the upgrade process, nodes can be upgraded piecemeal, for example, in one implementation, one node at a time. When a node is undergoing certain stages of the upgrade process, external clients can be directed toward the remaining nodes of the file system that are not currently being upgraded, including already upgraded nodes, to perform client activity. During the upgrade process, a first subset of nodes can be running in an upgraded state while a second subset of nodes can be in a non-upgraded state, both providing access to external clients in a seamless manner. In one implementation, a second namespace can be established at the onset of the upgrade process that reflects the new version of the operating system. The second namespace can be maintained in parallel with the original namespace during the pendency of the upgrade and/or downgrade process. A configuration translation layer can also be established on each node of the cluster of nodes. The configuration translation layer can provide the necessary key value pair translations that allow a request made an old version node to be performed by a new version node and vice versa. At the conclusion of an upgrade or a rollback, the cluster can enter a committed state and the namespace data that is no longer needed can be expired.
Owner:EMC IP HLDG CO LLC

Highway exit downgrade ramp inducing system and design method

ActiveCN108755481AEase the curveAlleviate the illusion of slopeTraffic signalsRoad signsIntermediate frequencyControl theory
The invention relates to the technical field of road traffic safety, in particular to a design method of a highway exit downgrade ramp inducing system. The highway exit downgrade ramp inducing systemcomprises multiple low frequency single-layer linear inducing marks, multiple low frequency multi-layer linear inducing marks, a medium frequency yellow light-reflective aluminum plate, continuous high frequency cat eye road studs, multiple anti-collision buckets and a light-reflective vibration mark line, wherein the multiple low frequency single-layer linear inducing marks are arranged behind anexit ramp nose guardrail; the multiple low frequency multi-layer linear inducing marks are arranged behind the exit ramp nose guardrail; the medium frequency yellow light-reflective aluminum plate isarranged on an exit ramp left side guardrail; the continuous high frequency cat eye road studs are arranged on a beginning lane edge line of an exit ramp deceleration lane; the multiple anti-collision buckets are arranged in the position, close to the internal side of a guardrail, of the nose end of the exit ramp; the light-reflective vibration mark line is arranged on the edge line of an exit ramp lane; the single-layer linear inducing marks, the multi-layer linear inducing marks, the yellow light-reflective aluminum plate and the cat eye road studs are correspondingly arranged to form multi-frequency active inducing vision information; the arranging ending positions of the single-layer linear inducing marks, the multi-layer linear inducing marks, the yellow light-reflective aluminum plate and the cat eye road studs are the ending cross section of a ramp curve; and the anti-collision buckets, the light-reflective vibration mark line and the guardrail are correspondingly arranged to form a passive protection facility.
Owner:湖北晶视通交通科技有限公司
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