28 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 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.

A method and apparatus in a communication node used for wireless communication are disclosed. A first node receives a first RRC message, the first RRC message comprising a first domain, at least one second domain, and a third domain; receiving a second RRC message after receiving the first RRC message, the second RRC message including a second domain and a fourth domain; it is determined whether to apply the third domain of the first RRC message to the second domain of the second RRC message according to the fourth domain of the second RRC message. The scheme provided by the invention has the advantages that the problem of carrying configuration of broadcast / multicast, especially the problem of association between the PTP branch and the PTM branch, is solved; the stored configuration parameters are reused as much as possible, and the signaling overhead is reduced.

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.

Methods and procedures may be needed to enable communication and proper operation to support coexistence of low-cost WTRUs and normal WTRUs.SOLUTION: Uplink transmissions and multimedia broadcast multicast service (MBMS) may be supported in a WTRU operating on a reduced bandwidth within an overall system bandwidth by receiving an uplink (UL) resource allocation within the reduced bandwidth and sending a transmission via the UL resource allocation. The reduced bandwidth may include a small number of physical resource blocks (PRBs) that do not overlap with PRBs located at the band edge of the entire system bandwidth including the system PUCCH. The UL resources may be located at both band edges of the reduced bandwidth, may be a PRB pair at the same frequency of the reduced bandwidth, or may be a PRB pair in the first slot of the first subframe and the second slot of the second subframe of the reduced bandwidth.SELECTED DRAWING: Figure 4

Systems, methods, apparatuses, and computer program products for restoration of multicast / broadcast service upon multicast / broadcast failure with restart are provided. For example, a method may include detecting a restart of a multicast / broadcast user plane function that was supporting a packet forwarding control protocol session for a multicast / broadcast session. The method may also include re-creating a packet forwarding control protocol session for the multicast / broadcast session. The method may further include providing addressing information for the data delivery of the broadcast / multicast session to the multicast / broadcast user plane function and instructing the multicast / broadcast user plane function to use this addressing information for the broadcast / multicast session if possible.

The present disclosure describes methods, system, and devices for determining a user equipment (UE) to perform multimedia broadcast multicast (MBMS) uplink feedback. The method includes receiving, by at least one UE, a multicast traffic channel (MTCH) transmission in a MBMS service from a radio access network (RAN). The method further includes, in response to determining that a channel quality indicator (CQI) of the UE satisfies a preset condition, determining, by the UE, to perform MBMS uplink feedback.

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.

A terminal is provided with: a reception unit which receives, from a base station, two of a unicast PDSCH (Physical Downlink Shared Channel), a Multicast-Broadcast Service (MBS)-PDSCH (Physical Downlink Shared Channel), and a Multicast MBS-PDSCH (Multicast Broadcast Service), and a transmission unit which transmits the received data to the base station, and which transmits the received data to the base station; and a control unit that assumes that two of the unicast PDSCH, the broadcast MBS-PDSCH, and the multicast MBS-PDSCH are multiplexed in the same time slot, adjacent time slots, or both the same time slot and the adjacent time slots.

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.

The present disclosure describes methods, systems, and devices for allocating uplink resources for multimedia broadcast multicast (MBMS) uplink feedback information. The method includes a radio access network (RAN) transmitting at least one multicast traffic channel (MTCH) transmission in an MBMS service to at least one user equipment (UE). The method also includes the RAN allocating at least one resource for the at least one UE to transmit MBMS related uplink feedback information corresponding to the at least one MTCH transmission.

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.

A communication method applied at a user equipment side includes receiving configuration parameters of a broadcast multicast service, wherein the configuration parameters comprise quality of service parameters, if a user equipment is in an idle state or an inactive state, then performing state transition to transition to a connected state and receiving the broadcast multicast service in the connected state.

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.

The present application relates to methods, systems, and devices related to digital wireless communication, and more specifically, to techniques related to determining PUCCH resources for a HARQ-ACK codebook of a MBMS service. In one exemplary aspect, a method for wireless communication is disclosed. The method includes receiving, by a terminal, a first set of information relating to a unicast service and a second set of information relating to a multimedia broadcast multicast service (MBMS). The method also includes generating, by the terminal, a final codebook that is a concatenation of a first codebook based on the first set of information and a second codebook based on the second set of information.

The application provides a data retransmission method and device, a communication device and a storage medium, and belongs to the technical field of wireless communication. The method comprises the following steps: based on a specified MBS (Multicast Broadcast Service, broadcast multicast service) retransmission identifier, listening to the retransmission data scheduling of the MBS. Thus, whether to start the mechanism for terminating data retransmission is determined based on the signal state information received in a continuous period. Thus, through the data retransmission method, the UE listens to the retransmission data scheduling of the MBS based on the specified MBS retransmission identifier in the MBS service, realizes the retransmission of the MBS service data that fails to be received, and thus the reliability of data transmission is improved.

The present application relates to methods, systems, and devices related to digital wireless communication, and more specifically, to techniques related to determining PUCCH resources for a HARQ-ACK codebook of a MBMS service. In one exemplary aspect, a method for wireless communication is disclosed. The method includes receiving, by a terminal, a first set of information relating to a unicast service and a second set of information relating to a multimedia broadcast multicast service (MBMS). The method also includes generating, by the terminal, a final codebook that is a concatenation of a first codebook based on the first set of information and a second codebook based on the second set of information.

The present disclosure describes methods, system, and devices for allocating uplink resource for multimedia broadcast multicast (MBMS) uplink feedback information. The method includes sending, by a radio access network (RAN) to at least one user equipment (UE), at least one multicast traffic channel (MTCH) transmission in a MBMS service. The method also includes allocating, by the RAN for the at least one UE, at least one resource for transmitting MBMS-related uplink feedback information corresponding to the at least one MTCH transmission.

The application provides a method, device and storage medium for uplink DAI indication. According to the embodiment of the application, the uplink DAI can be configured without the maximum broadcast multicast service number or the maximum number of possible generated HARQ-ACK sub-codebooks, the purpose of determining the HARQ-ACK sub-codebook length can still be achieved, the network device scheduling flexibility can be improved, and the signaling overhead of the uplink DAI is reduced.