6 results about "Broadcast multicast" patented technology

The application provides a power control parameter determination method and device. The method comprises: a terminal acquiring relevant parameters of unicast and relevant parameters of multicast; and the terminal determining a power control parameter of a physical uplink control channel (PUCCH) according to the relevant parameters of unicast and the relevant parameters of multicast. According to the embodiment of the application, the terminal determines the power control parameter of the PUCCH channel used for transmitting the HARQ-ACK codebook of the broadcast multicast according to the relevant parameters of unicast and the relevant parameters of multicast, so that the terminal can better perform power control, thereby realizing power efficiency maximization, meeting the demand of PUCCH transmission power requirement, and saving power.

The application proposes a method for parsing and mapping emergency broadcast messages to 3GPP broadcast, taking the emergency information adaptation device as a heterogeneous system core gateway, receiving the emergency broadcast messages conforming to the GY / T 385-2023 specification and performing validity verification, realizing accurate mapping of core fields such as message identification, level, coverage area, content, time parameter, etc. to corresponding fields of 5G multicast broadcast multimedia service, encapsulating as 5G broadcast session data according to the 3GPP TS 26.348 specification and sending to the broadcast multicast service center of the 5G core network through the standard interface. The application realizes end-to-end protocol conversion of emergency broadcast and 5G broadcast, the system is low-coupled and easy to deploy, resource utilization is efficient, and accurate and rapid delivery of emergency broadcast messages to various terminals is ensured, and the scheme has openness and interoperability.

Provided are sensing communication method, apparatus, and system. An apparatus such as a central device can broadcast or multi-cast or unicast query message(s), so that other apparatus(es) such as one or more sensing devices can obtain the query message(s) and respond with sensing result(s) in response to the obtained query message(s). Query may be conducted for one or more rounds. In a round, the query messages can be of different levels, and as a result, more flexible and detailed query would be achieved. Moreover, query may be conducted for several rounds, and the apparatus may broadcast or multi-cast or unicast query messages of different levels in several rounds, so that other apparatus(es) can respond with sensing result(s) in response to the obtained query messages in several rounds, where a low level / coarse level query message is for initial query, and a high level query message is for subsequent fine grained query.

Embodiments of the present disclosure relate to resuming multicast / broadcast services upon multicast / broadcast failure and restart. Systems, methods, apparatuses, and computer program products for resuming multicast / broadcast services upon multicast / broadcast failure and restart are provided. For example, a method can include detecting a restart of a multicast / broadcast user plane function that is supporting a packet forwarding control protocol session for a multicast / broadcast session. The method can also include recreating the packet forwarding control protocol session for the multicast / broadcast session. The method can also include providing addressing information for data delivery for the broadcast / multicast session to the multicast / broadcast user plane function and instructing the multicast / broadcast user plane function to use the addressing information for the broadcast / multicast session if possible.

This application provides an information transmission method, apparatus, and network element, relating to the field of communication technology. The information transmission method, executed by a first network element, includes: sending first information to a second network element; wherein the first information is used to instruct that multicast broadcast services (MBS) supported by the first network element are allowed to use the same radio resources as MBS supported by other network elements besides the first network element, and the first network element shares the second network element with the other network elements besides the first network element. This solution enables resource sharing for broadcast multicast services under multiple PLMNs in a distributed node sharing scenario.

An apparatus can broadcast or multi-cast or unicast query message(s), so that other apparatus(es) can obtain the query message(s) and respond with sensing result(s). The sensing result(s) may include the at least one piece of sensed data and / or the at least one sensing semantic, where the at least one piece of sensed data and / or at least one piece of sensed data corresponding to the at least one sensing semantic is included in one or more pieces of sensed data and matches query message(s) based on respective score of relevance of each of the at least one piece of sensed data in the sensing result(s) and / or each of the at least one piece of sensed data corresponding to the at least one sensing semantic in the sensing result(s), and for each of the one or more pieces of sensed data, a respective score of relevance is calculated.