Protocol for managing capability exposure APIs in IMT-2020 networks

NGN NNI signalling profile (protocol set 1)

Signalling protocol for heterogeneous Internet of things gateways

Protocol for time constraint Internet of things-based applications over software-defined networking

The compatibility testing of SDN-based equipment using OpenFlow protocol

Protocol-neutral management information model for the Ethernet transport capable network element

Procedures for establishing communication between two multiprotocol audiovisual terminals using digital channels at a multiple of 64 or 56 kbit/s

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With the assistance of the Delaware Farmers’ Market Coalition, a group of market managers from across the state, the Delaware Department of Agriculture (DDA) is issuing protocols to help farmers’ markets safely begin opening starting May 15.

The Delaware State Fire Commission has recently announced the implementation of new updated emergency medical services (EMS) protocols aimed at improving healthcare response in critical situations. These protocols were established after extensive consultations with medical professionals, emergency responders, and other stakeholders in the healthcare industry. The objective is to ensure a consistent and standardized approach […]

In a network containing multiple nodes, the need for synchronization between the various nodes is not just instrumental but also a complicated and highly complex process. This process becomes even more tricky if we synchronize the clocks between the Manager and the Peripheral. As we know, in a real-time network, some of the nodes would behave like Managers while some would be a Peripheral. If we must make the communication process smooth, then the local clocks of these nodes must be synchronized. 

The problem with this synchronization is that we have the clock running in the Manager as well. If we send the value of the Manager clock to the Peripheral, the synchronization doesn’t happen as we have a propagation delay of the messages, along with the propagation delay of the electronic circuits of Manager and the Peripheral.  

The cherry on the cake is that these electronic circuit propagation delays are not random and remain constant, so we can add a time offset to it to match the clock. To tackle this challenge, IEEE has come up with a protocol named “Precision Timing Protocol.” 

Operation of PTP: 

To synchronize the clocks, a Sync message is sent by the Manager to the Peripheral, which then timestamps the receiving time of the same. Following this, a ‘Follow up’ message is issued by the Manager stating the timestamp at which the Sync message was sent. 

The Peripheral then finds the difference between the two values and adds this to its current time. After this, the time difference between the Manager and the Peripheral narrows down to only the propagation delay of the messages.  

To overcome this, the Peripheral issues a ‘Delay Request’ to the Manager, and the Manager, in turn, issues a ‘Delay Response.’ Both these messages have the timestamp of when they were issued. The time at which they are received is then noted. Since two messages are sent, one from the Peripheral and the other from the Manager, there are two propagation delays. Then half of this value is our propagation delay. 

The Peripheral then adds this propagation delay to its clock, and hence the clock gets synchronized. 

Advantages of PTP: 

1. It provides accurate time stamping. 
2. It is a well-known clock synchronization protocol. 
3. It provides intensified security inside the premises. 
4. It provides the possibility of setting coordinated actions and synchronized communication. 

There are various versions of PTP that have been developed over time, namely PTPv1, PTPv2, PTPv2_1, and the latest PTP-AS. 

Cadence Verification IP for Ethernet is available to support the newer version of PTP, allowing simulation of the device for efficient IP, SoC, and system-level design verification. Semiconductor companies can start using it to fully verify their controller design and achieve functional verification closure on it within no time. 

Hello,

I have been running this `uvm_reg_hw_reset_seq` sequence for the AHB protocol. My UVM Adapter looks like:

Issue: When I use basic reg.write, my write access are working well, as that is managed by the driver i.e. once adapter gives the packet to the driver, the driver supplies the address and the control signals to the DUT on the first clock cycle and then the write data on the next clock cycle. But when I am performing the read operation, somehow the UVM adapter is reading the data at the same clock cycle where read address + Controls are supplied and this is triggering read failure messages from the `uvm_reg_hw_reset_seq` sequence. What should I modify in the driver/sequencer/adapter so that the UVM adapter can read the data on the next cycle instead of the same clock cycle.

Just FYI: The waveforms of the read operation are correct, it is just the Adapter and the `uvm_reg_hw_reset_seq`. The AHB Driver + AHB Monitor is fully proven and verified to be working correctly.

BACKGROUND AND PURPOSE:

Overuse of CT-based cerebrovascular imaging in the emergency department and inpatient settings, notably CTA of the head and neck for minor and nonfocal neurologic presentations, stresses imaging services and exposes patients to radiation and contrast. Furthermore, such CT-based imaging is often insufficient for definitive diagnosis, necessitating additional MR imaging. Recent advances in fast MRI may allow timely assessment and a reduced need for head and neck CTA in select populations.

The Russian Government has announced the signing of a double tax Protocol with Malta, to increase the amount of tax that Russia may collect at source on cross-border payments of dividends and interest to 15 percent.

The Russian Government has announced the signing of a double tax Protocol with Malta, to increase the amount of tax that Russia may collect at source on cross-border payments of dividends and interest to 15 percent.

As global medlinkmonkeypox/medlink (mpox) cases rise, Chinese authorities have stepped up efforts to prevent the virus from entering the country.