15 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.

A base station may transmit a broadcast / multicast service in a multicast broadcast single frequency network (MBSFN) area multicast communication. A method of wireless communication at a base station in accordance with an aspect of the present disclosure comprises determining a broadcast / multicast service to be provided to a user equipment (UE) in a multicast broadcast single frequency network (MBSFN) area, and transmitting a tracking reference signal (TRS) to the UE, the TRS indicating information associated with receiving the broadcast / multicast service by the UE.

Disclosed are example embodiments of methods, apparatuses and systems supporting beam diversity for multimedia broadcast multicast services. A method may comprise receiving information of one or more beams and abeam-specific repetition pattern for at least one of the one or more beams for transmission of a service from a network device, and receiving the service on the at least one of the one or more beams based on the beam-specific repetition pattern.

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.

A two-dimensional (2D) coding method and system is described for broadcast, multicast, or groupcast applications. Two or more information code blocks (CBs) are transmitted to multiple intended receiving nodes. One or more cross CB check blocks are generated, each cross CB check block being generated based on a set of cross CB bits, the set of cross CB bits including at least one bit selected from each of at least two of the information CBs. At least one cross CB check block is transmitted to at least one of the intended receiving nodes.

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.

Systems and methods for broadcast / multicast transmission in a distributed cell-less massive multiple-input multiple-output (MIMO) network are disclosed. In one embodiment, a method for broadcasting / multicasting data to a user equipment (UE) includes obtaining, at each of two or more access points (APs), long-term channel state information (CSI) for the UE, and transmitting, to a central processing system, the long-term CSI for the UE. The method further includes receiving, at the central processing system, the long-term CSI for the UE from each of the APs, computing, based on the long-term CSI, a precoding vector (w) for the UE over the APs, and transmitting, to the APs, the precoding vector (w). The method further includes obtaining, at each of the APs, the precoding vector (w) from the central processing system, precoding, based on the precoding vector (w), data to be broadcast / multicasted to the UE, and broadcasting / multicasting, to the UE, the precoded data.

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 adaptive feedback method, a telecommunication system, a base station and a user equipment (UE) for a telecommunication system comprising network nodes to provide multimedia broadcast multicast services (MBMS) to one or more UEs. A multicast broadcast single frequency network (MBSFN) transmission is performed to provide one or more MBMS services, a plurality of transport blocks (TBs) and a plurality of hybrid automatic repeat request (HARQ) parameters are transmitted. A first UE transmits a feedback message based on the HARQ parameters.

This disclosure describes a method, system, and apparatus for determining whether a user equipment (UE) is performing Multimedia Broadcast Multicast (MBMS) uplink feedback. The method includes at least one UE receiving a multicast traffic channel (MTCH) transmission in an MBMS service from a radio access network (RAN). The method further includes the UE determining to perform MBMS uplink feedback in response to determining that its channel quality indicator (CQI) meets preset conditions.

Provided are a 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). The sensing result(s) may include the at least one piece of sensed data and / or the at least one second sensing semantic, where the at least one second sensing semantic and / or the at least one third sensing semantic converted from the at least one piece of sensed data are included in the at least one first sensing semantic, which is generated based on at least one piece of raw sensed data and at least one semantization model preconfigured in the sensing device through communicating with the central device.

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.

A method includes, generating a schedule for an asset tag group, the schedule defining: a multicast trigger time for transmission of a multicast trigger to the asset tag group; and for each asset tag in the asset tag group, a transmit time succeeding receipt of the multicast trigger and unique to the asset tag, and a wake window intersecting the transmit time and the receipt of the multiact trigger. The method also includes, at the node network: broadcasting the multicast trigger; and, at an asset tag in the asset tag group, entering a wake mode; receiving the multicast trigger; transmitting a ranging signal; and entering the sleep mode. The method further includes, at the node network: receiving ranging signals from the asset tag group; and deriving locations of the asset tags in the asset tag group based on the ranging signals received by the node network.

The application discloses a communication method and device, so that the terminal device reports a first broadcast multicast service of which a transmission mode that the terminal device is interested in and / or is receiving data is a first transmission mode to an access network device, so that the terminal device can no longer report information for indicating whether the terminal device is interested in other broadcast multicast services and information for indicating whether the terminal device is receiving other broadcast multicast services, and uplink overhead can be reduced.