H04L12/1868

Purging failover through application controlled transit selection

Some embodiments provide redundancy and failover for accelerating and improving the processing of commands across a distributed platform. A distributed platform administrative server distributes commands to different distributed platform points-of-presence (PoPs) for execution. The administrative server distributes the commands over a first set of transit provider paths that connect the server to each PoP. The administrative server selects the first set of paths based on different addressing associated with each of the paths. If any of the first paths is unavailable or underperforming, the administrative server selects a second path by changing a destination address and resends the command to the particular PoP over the second path. Some embodiments further modify PoP server operation so that the PoP servers can identify commands issued according to the different path addressing and distribute such commands to all other servers of the same PoP upon identifying the different path addressing.

AUTOMATIC ISSUE IDENTIFICATION AND STATUS NOTIFICATION OF SCREENSHARING IN A VIRTUAL MEETING

A system and method for automatically detecting issues during screensharing in an online meeting. The system and method allow automatic status notification of screensharing, which facilitates efficient and convenient use of virtual meetings. The system and method also use a live status indicator to provide constant and continuous data about the health of the ongoing screensharing session, which prevents computer and network resources waste on status inquiries. The system and method also recognize a problem/issue of the content-sharing and provide virtual meeting participants real-time action guidance to optimize the quality of content-sharing.

Reliable multicast/broadcast transmission scheme

In one example a computer implemented method comprises receiving, at an access point of a wireless network, a multicast/broadcast frame which identifies one or more stations associated with the access point as a recipient for the multicast/broadcast frame, and in response to a determination that at least one station of the one or more stations identified as a recipient for the multicast/broadcast frame is in an inactive state, determining a beacon slot time for a transmission of the multicast/broadcast frame from the access point, in response to a determination that at least one of the one or more stations in an inactive state will miss the beacon signal, converting the multicast/broadcast frame to a unicast frame, and holding a copy of the unicast frame to be transmitted to the at least one of the one or more stations in an inactive state that will miss the beacon signal.

Feedback signalling for multicast data transmission
09775005 · 2017-09-26 · ·

Data transmission in a multicast fashion in which retransmissions are requested by recipients sending feedback to the one sender. Receiving stations are informed about the feedback of another receiving station. This is done by mirroring the feedback of receiving stations to other receiving stations. Due to this, in case, for example, one of the mirrored feedbacks is a negative acknowledgement message, the other receiving stations are informed that it is no longer necessary to provide their feedback, since a retransmission will be initiated anyway. Advantageously, this may allow reduced interference in the direction of the feedback.

Representing and searching network multicast trees

Methods and systems are disclosed for receiving data from each of a plurality of components in a network, the components being arranged as a plurality of multicast trees, the data from each of the components indicating a structure of a portion of the network and at least one attribute associated with the respective component. The disclosure further provides for determining, based on the data, a structure of at least some of the multicast trees, receiving search criteria, and determining which of the multicast trees meet the search criteria.

TECHNIQUES FOR MULTICAST BEAM FAILURE AND RECOVERY

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to the base station, a beam recovery request including an indication of a multicast beam, where the beam recovery request is transmitted based at least in part on a unicast uplink grant, and where the unicast uplink grant comprises a set of uplink resources for a multicast beam recovery procedure based at least in part on a failure of the multicast beam associated with multicast communications between the UE and the base station. The UE may receive, from the base station in response to the beam recovery request, a response message including an indication of a second uplink grant, an indication of a second beam for communications between the UE and the base station, or both. The UE may transmit a first uplink transmission via the second uplink grant, the second beam, or both.

Extensible resource management for hybrid cloud-based media production

An extensible resource manager (ERM) of a hybrid cloud-based media production system includes a computing platform having a hardware processor and a memory storing a resource management software code. The hardware processor executes the resource management software code to communicate with a network orchestrator of the hybrid cloud-based media production system to identify multicast production media flow(s) for processing in a cloud-based virtual production environment, to identify cloud-based resource(s) for processing cloud production media flow(s) corresponding to the multicast production media flow(s), in the cloud-based virtual production environment, and to determine whether a license exists for the identified cloud-based resource(s). The hardware processor also executes the resource management software code to obtain the license when the license does not exist, and to provision, after obtaining the license or in response to determining that the license exists, the cloud-based virtual production environment with the identified cloud-based resource(s).

Multi-unicast discovery of devices on a network

Client and server devices identify each other over a LAN or similar network through a series of unicasts. Rather than broadcasting a service announcement or discovery request as a broadcast or multicast, for example, a device instead transmits a series of unicast messages using a finite set of recipient network addresses and port numbers. Responses to the unicast messages can be collected and tracked to thereby allow subsequent communications to occur via unicasts with only the recognized addresses, with a multicast to only the recognized addresses, and/or otherwise as desired. By allowing the clients and servers to communicate with a finite set of unicast messages, a “broadcast” type message can be sent on the network without a need for router configuration. Moreover, unicasts can be sent using different protocols (e.g., TCP) than the subsequent traffic (e.g., UDP), thereby making discovery of compatible devices on the network more reliable.

METHODS AND APPARATUS TO DELIVER RELIABLE MULTICAST SERVICES VIA PDCP RETRANSMISSION
20220209903 · 2022-06-30 ·

Apparatus and methods are provided for the UE-initiated PDCP status report for PDCP retransmission. In one novel aspect, the UE initiates a PDCP status report upon detecting SN gap in the PDCP SDU reception buffer for a period of time, which is controlled by a UE local t-reordering timer. The UE-initiated status report procedure performs an SN gap monitoring to compile a PDCP status report with updated SN gap information and sends the PDCP status report to the wireless network. In one embodiment, the t-reordering timer is started upon detecting the initial SN gap when there is no t-reordering timer running and is stopped upon detecting the SN gap being closed. In one embodiment, the PDCP status report is sent to the network upon detecting the t-reordering timer expires. In one embodiment, the PDCP status report includes a first missing count field and a bitmap for the missing SDUs.

Method for groupcast transmission and reception with feedback information, and apparatus therefor

A method for sidelink groupcast transmission, performed by a transmitting terminal, may comprise configuring a first feedback resource located at a first time point and a second feedback resource located at a later time point than the first time point; transmitting groupcast control information and groupcast data to a receiving terminal group; receiving first feedback information through the first feedback resource from at least one terminal belonging to a first subgroup of the receiving terminal group; and receiving second feedback information through the second feedback resource from at least one terminal belonging to a second subgroup of the receiving terminal group.