658 results about "Broadcast service" patented technology

Disclosed are a method and an apparatus for providing multicast and broadcast services in a non-terrestrial network. A method of an NTN base station may comprise: transmitting, to a terminal, service area information including information on a valid range of a multicast-broadcast service (MBS) for each of a plurality of service areas preconfigured for MBS provision; and transmitting MBS signals for providing the MBS to the terminal.

A system, method and apparatus for mobile communications are provided. A user equipment (UE) in a radio resource control state receives a broadcast message that includes measurement configuration parameters. The UE determines, based on the measurement configuration parameters, a service continuity trigger for one or more multicast broadcast services (MBS) services. Responsive to the determined service continuity trigger, a random access process (RAP) is initiated, wherein initiating the RAP includes transmitting a first message indicating a request for MBS configuration parameters associated with the one or more MBS services. The UE receives the one or more MBS configuration parameters in response to transmitting the first message. The UE then receives data associated with the one or more MBS services via the target cell based on the MBS configuration parameters and while remaining in the RRC state.

Various arrangements disclosed herein relate to managing Multicast and Broadcast Services (MBSs) in various Radio Resource Control (RRC) states, including receiving, by a wireless communication device from a network using signaling specific to the wireless communication device, indication information indicating that Point-to-Multipoint (PTM) configuration for each of a plurality of Multicast and Broadcast Services (MBSs) is obtained from broadcast signaling when the wireless communication device is in an RRC-connected state. The wireless communication device receives from the network the PTM configuration from the broadcast signaling used for receiving the plurality of MBSs when the wireless communication device is in the RRC-connected state.

Methods, apparatus, and systems for providing multicast handover are disclosed. In one example aspect, the method includes receiving, by a target radio access node (T-RAN) from a source radio access node (S-RAN) or from an access and mobility management function (AMF), a handover request including a multicast or broadcast context for a handover of a multicast and broadcast service (MBS) to the T-RAN. The method further includes binding a shared tunnel for the MBS and a flow in a unicast protocol data unit (PDU) session in a case that an MBS session identified in the multicast or broadcast context has already been established at the T-RAN, and sending, to an AMF, a message including a handover request acknowledgment or a path switch.

A system, method and apparatus for mobile communications is provided. A user equipment (UE) receives one or more messages that include configuration parameters indicating that one or more multicast broadcast services are associated illustratively with a first control resource set (CORESET) and a first bandwidth part (BWP). The messages also include one or more first radio network temporary identifiers (RNTIs) associated with the one or more multicast broadcast services. The UE then receives via the first CORESET or the first BWP downlink control information associated with the one or more first RNTIs. The UE then received one or more transport blocks associated with the one or more multicast broadcast services.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method disclosed herein includes using a hierarchical signalling to provide one or more MBS services to a User Equipment (UE), wherein an MBS System Information Block (SIB) is used to signal MBS control channel (MCCH) information, and a MCCH message is used to signal the MBS traffic channel (MTCH) information.

A method can include receiving, by a wireless device, radio resource control (RRC) messages that include parameters of a multicast and broadcast service (MBS). The parameters can include a discontinuous reception (DRX) hybrid automatic repeat request (HARQ) round trip time (RTT) timer; a DRX retransmission timer; and a feedback indicator indicating whether HARQ feedback is enabled. The method can also include receiving a group common downlink control information (DCI) scheduling a transport block (TB) of the MBS. The method can further include, in response to the feedback indicator indicating that HARQ feedback is enabled: transmitting a HARQ feedback with a negative value based on the TB being unsuccessfully decoded; and starting the DRX HARQ RTT timer after transmitting the HARQ feedback. The method can additionally include starting the DRX retransmission timer based on an expiry of the DRX HARQ RTT timer.

The invention provides an integrated circuit of multi-service multiplexing access network local side equipment. The integrated circuit comprises a data forwarding matrix unit, a multicast service forwarding matrix unit, a unicast service forwarding matrix, a data plane control unit, a logic plane control unit and a protocol conversion unit, wherein the logic plane control unit is used for determining an optimized unitized and modularized global strategy instruction and realizing protocol conversion, service multiplexing and data forwarding of a communication service, a broadband internet service and a cable television service; and the protocol conversion unit is used for realizing the live broadcast service transmitted by the cable television network in the access network local side equipment. Compared with the existing network for receiving the television live broadcast service in a mode of starting the IGMP protocol, the scheme of the embodiment has the advantages that the investment cost of the CDN node of the core network is greatly reduced, and meanwhile, a home-entry gateway does not need to be arranged in a user home, so that the investment cost of a broadband service, communication service and broadcast television service fusion network is reduced.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. According to the present disclosure, MBS services for flexible and dynamic MBS service scenarios become possible in the next-generation wireless communication systems.

A communication method implemented by an apparatus includes that a source access network element sends information of a unicast quality of service (QoS) flow of a protocol data unit (PDU) session corresponding to a multicast QoS flow of a multicast broadcast service (MBS) to a target access network element in a handover procedure. The target access network element forwards the information to a session management network element. The session management network element then indicates a user plane network element connected to the target access network element to send data of the MBS to a terminal device through the target access network element and by using a resource of the unicast QoS flow corresponding to the multicast QoS flow of the MBS.

To provide a communication method, user equipment, a mobile communication system, a program, and a chip set for allowing the user equipment in an RRC inactive state to perform multicast reception, in a mobile communication system providing a multicast / broadcast service (MBS).SOLUTION: User equipment UE 100, which is in a ratio resource control (RRC) inactive state and participates in a multicast session, receives a paging message for notifying the start of the multicast session from a network node gNB 200, and determines whether to make a transition from the RRC inactive state to an RRC connected state. The paging message includes session information on the multicast session, and identification information for specifying one or more pieces of user equipment UE 100 to be transitioned to the RRC connected state.SELECTED DRAWING: Figure 9

A system, method and apparatus for mobile communications including is provided. A user equipment (UE) receives measurement configuration parameters including one or more first measurement configuration parameters for handover decisions associated with one or more first services, the one or more first services associated with a first type of service and one or more second measurement configuration parameters for handover decisions associated with one or more second services. The first services are associated with a first type of service and the second services are associated with a second type of service. The UE transmits one or more measurement reports that include the two types of measurement information. The UE then receives a radio resource control (RRC) reconfiguration message indicating a handover to the target cell and establishes a connection with the target cell based on the received the RRC reconfiguration message.

To provide a receiver capable of shortening a time until using a broadcast communication cooperation service of a selected destination while using the broadcast communication cooperation service by a broadcast managed application.SOLUTION: The receiver includes a reception unit, a channel selection unit, an application execution unit, and an application control unit. The application execution unit executes an application. The application execution unit executes a function of performing a process for channel selection based on the channel selection information of the broadcast service and a process for executing the broadcast managed application based on the URL of the application information table of the broadcast managed application designated by the broadcast managed application. The application control unit controls the channel selection unit to select the designated broadcast service, and performs control to activate the broadcast managed application based on the designated URL.SELECTED DRAWING: Figure 2

A radio access network (RAN) participating in a multicast and broadcast services (MBS) session can implement a method for managing MBS communication. The method includes: (a) transmitting, to a user equipment (UE), a first command to transition from a connected state to an inactive state in which a radio connection between the UE and the RAN is suspended, the command including a first multicast configuration with an MBS radio bearer (MRB) parameter, for receiving MBS data; (b) transmitting, to the UE operating in the inactive state, MBS data according to the first multicast configuration; (c) receiving, from the UE, a request to resume the radio connection; and (d) transmitting, to the UE and in response to the request, a second command to resume the radio connection, the command including a second multicast configuration for continuing to receive the MBS data in the connected state.

A communication method for use in a mobile communication system to provide a multicast / broadcast service (MBS), the method comprising the steps of: receiving configuration information from a base station by a user equipment in a radio resource control (RRC) connected state; and the user equipment transitioning from the RRC connected state to the RRC inactive state receives the multicast session in the cell of the base station. The configuration information includes an information element indicating whether a user equipment receiving a multicast session in an RRC inactive state is allowed to reselect a cell to another cell.

A method of multicast broadcast services (MBS) notification signaling includes determining, by a user equipment (UE), paging occasions for monitoring a downlink control channel associated with one or more paging messages comprising one or more MBS-related notifications that are associated with scheduling information for reception of MBS data; receiving the one or more MBS-related notifications based on monitoring the downlink control channel in one or more first paging occasions of the paging occasions; and receiving the MBS data based on the one or more MBS-related notifications.

A cell reselection method for multicast and / or broadcast service (MBS) service continuity and related devices are provided. The method, performed by a user equipment (UE), includes staying on a first cell for MBS data reception based on an MBS configuration in a power saving state; receiving a signaling from at least one of the first cell or at least one neighboring cell for the power saving UE to prioritize cells for cell reselection, wherein an MBS indication comprised in the signaling is configured to identify whether an MBS session of an associated cell is activated; and selecting a second cell from the at least one neighboring cell based on the MBS indication, and changing from the first cell to the second cell to camp on for the MBS data reception. With this method, MBS service continuity is achieved during the change of serving cell.

The present application provides a communication method and apparatus. The method comprises: a first core network element acquires geographic location information and / or a cell identifier corresponding to a service area of a multicast broadcast service; the first core network element determines first information, the first information comprising the geographic location information corresponding to the service area of the multicast broadcast service and / or a correspondence, wherein the correspondence indicates a correspondence between the cell identifier corresponding to the service area of the multicast broadcast service and a satellite cell identifier corresponding to the service area of the multicast broadcast service; and the first core network element sends the first information to a terminal. The communication method and the communication apparatus provided by the present application ensures that the terminal device can access or connect to a specified multicast broadcast service within the actual coverage area of the multicast broadcast service.

The disclosure provides methods, systems, apparatuses, and computer programs for Multicast-Broadcast Services (MBS) in a Non-Terrestrial Networks (NTN) network. The methods include: receiving an information element (IE) including Multicast-Broadcast Services (MBS) service area information indicating one or more MBS service areas in a non-terrestrial network (NTN) serving cell.

A user equipment (UE) can implement a method for reporting feedback for a multicast and / or broadcast service (MBS) when the UE is receiving multiple MBSs. The method may include receiving (402), during a time period when a base station generates a sequence of downlink assignments for the multiple MBSs, a plurality of downlink assignments included in the sequence of the downlink assignments, the plurality of downlink assignments scheduling a respective plurality of data transmissions of the MBS service; attempting to receive (404), from the base station, the plurality of data transmissions in accordance with the plurality of downlink assignments; and transmits (406), to the base station, feedback for the plurality of data transmissions, the feedback including an indication of a last successfully received downlink assignment of the plurality of downlink assignments.

Embodiments include methods for a user equipment (UE) configured to support multicast and broadcast services (MBS) in a non-terrestrial network (NTN). Such methods include obtaining the following information: a configuration of an intended service area for a broadcast service, and a hysteresis configuration for the intended service area. Such methods include determining the UE's geographic location and determining a relation between the UE's geographic location and one or more thresholds defined by the following: the configuration of the intended service area, and the hysteresis configuration. Such methods include, based on the determined relation, selectively managing one or more radio bearers for the broadcast service. Other embodiments include complementary methods for radio access network (RAN) nodes, as well as UEs and RAN nodes configured to perform such methods.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, configuration information indicating that network coding is enabled for initial transmissions associated with a multicast / broadcast service (MBS) and indicating that network coding is enabled for retransmissions associated with the MBS. The UE may receive, via a multicast traffic channel or a dedicated traffic channel, an initial transmission associated with the MBS, wherein the initial transmission is associated with a first set of encoded packets. The UE may transmit a radio link control (RLC) status feedback message associated with the initial transmission. The UE may receive, via the multicast traffic channel or the dedicated traffic channel, a retransmission associated with the initial transmission, wherein the retransmission is associated with a second set of encoded packets. Numerous other aspects are described.

A communication method and apparatus, and a system, to improve efficiency of receiving a multicast service. The communication method includes: sending a radio resource control (RRC) resume request message to a first network device; receiving an RRC resume message sent by the first network device; entering an RRC connected state from an RRC inactive state; and receiving a first multicast based on a first multicast broadcast service radio bearer (MRB), where the first MRB is determined based on the RRC resume message and first multicast configuration information, the first multicast configuration information is obtained from a second network device, and the second network device is a network device in a last serving cell in an RRC connected state.

A communication method used in a mobile communication system for providing a multicast / broadcast service (MBS) includes the steps of: suspending, by a user equipment in a radio resource control (RRC) connected state, a first multicast radio bearer (MRB) in response to transitioning from the RRC connected state to an RRC inactive state after establishing the first MRB with a network; receiving, by the user equipment in the RRC inactive state, a multicast session via a second MRB from the network; and performing, by the user equipment, predetermined processing of switching from reception of the multicast session via the second MRB to reception of the multicast session via the first MRB, when the user equipment performs RRC connection resume to transition from the RRC inactive state to the RRC connected state.

A system and a method in a wireless communication network are disclosed to reduce a power consumption of a Multicast and Broadcast Services (MBS) device. The device includes an interface to the wireless communication network that receives wireless communications from the wireless communication network, and a controller. The controller controls the interface to receive unicast communications in a bandwidth part (BWP) of the wireless communication network and to receive MBS communications in a common frequency resource (CFR) of the wireless communications. The controller further controls the interface by selectively receiving MBS communications in the CFR to reduce a frequency bandwidth of the interface, or a combination thereof, to reduce a power consumption of the device.

The present application relates to the technical field of communications, and provides a communication method and apparatus. The method comprises: determining that an access network device corresponding to a first session enters or leaves a first area, wherein the first session is used for carrying a first multicast / broadcast service, and the first area is a service area of the first multicast / broadcast service; and sending first information to a second network element, wherein the first information is used for updating the first session. As the access network device enters or leaves the service area of the multicast / broadcast service, a first network element can instruct the second network element to update the session corresponding to the access network device, thereby ensuring smooth operation of the multicast / broadcast service within the service area and improving the service continuity in an NTN scenario.

Embodiments described herein relate to methods and apparatuses for reporting Quality of Experience, QoE, measurements for a Multicast Broadcast Service, MBS. A method in a user equipment comprises receiving, from a network node, a configuration configuring the performing and / or reporting of QoE measurements of the MBS, wherein the configuration indicates that QoE measurements are to be performed and / or QoE reports are to be reported upon fulfilment of one or more conditions.

Systems and methods for session continuity of Multicast Broadcast (MB) Sessions are provided. In some embodiments, a method performed by a base station for session continuity of MB Sessions includes at least one of: providing at least one MB Session to a wireless device connected in 5G; determining that the wireless device is handed over to a target Next Generation Radio Access Network (NG-RAN); and providing session continuity of the at least one MB Session to the wireless device. In some embodiments, being handed over to the target NG-RAN comprises an Xn handover. In some embodiments, being handed over to the target NG-RAN comprises a N2 handover. Some embodiments of the current disclosure provide support for Multicast Broadcast Session continuity (aka “Handover”) at Inter-gNB Xn Handover and Inter-gNB N2 Handover in the 5G NR radio access.

Provided are a method and device for switching between unicast transmission and multicast / broadcast service (MBS) transmission in a cellular wireless communication network. The method for a base station to switch MBS data transmission may include: transmitting configuration information for reception of MBS data of a user equipment (UE) to the UE; transmitting information instructing a change of radio bearer for the reception of the MBS data to the UE; and receiving a packet data convergence protocol (PDCP) status report from the UE.