899 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 radio access network (RAN) can perform a method for managing security protection for multicast and / or broadcast services (MBS). The method includes receiving (802), from a core network (CN) via a DL tunnel, a data packet associated with an MBS session; prior to transmitting the data packet to a plurality of UEs, determining (804) which security protection to apply to the data packet based on an identity of the DL tunnel; and transmitting (806) the data packet to the plurality of UEs using the determined security protection. A UE can receive (902), from a RAN, a configuration for establishing a logical channel with the RAN; receive (904), from the RAN via the logical channel, a data packet associated with an MBS session; determine (906) which security protection to apply to the data packet based on the configuration; and apply (908) the determined security protection to the data packet.

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.

A communication system is disclosed in which Multicast and Broadcast Services (MBS) may be provided via multicast, for user equipment (UE) in an inactive state. A distributed unit of a base station apparatus receives, from a central unit of the base station apparatus, information identifying at least one MBS session and information identifying that the at least one MBS session is to be provided in a cell via multicast for the UE in the inactive 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.

The invention discloses a medium-short wave signal transmission interference suppression method and system based on wireless radio and television, and the method comprises the following steps: S1, collecting and preprocessing medium-short wave frequency band data, and constructing a frequency spectrum state data set; s2, constructing a spectrum evolution cognitive map model based on the spectrum state data set; s3, performing clustering analysis by using the spectrum evolution cognitive map model to generate a broadcast interference popularity map; s4, inputting the spectrum evolution cognitive map model and the broadcast interference heat map into an improved badger interference avoidance algorithm, and outputting a frequency hopping avoidance path; s5, the broadcast transmitting system executes frequency hopping scheduling control according to the frequency hopping avoiding path, and it is guaranteed that frequency point switching is completed under the condition that broadcast service is not interrupted; and S6, the broadcast receiving terminal collects signal quality parameters and transmits the signal quality parameters back to the central system, and the node state of the spectrum evolution cognitive graph model is updated in real time. According to the method, active avoidance of medium-short wave broadcast interference and stable frequency hopping scheduling are realized by combining frequency spectrum cognitive modeling and a swarm intelligent optimization algorithm.

A method and apparatus for switching of multicast and broadcast service between multicast and unicast in a wireless communication system is described. A CU-CP establishes a connection with a wireless device for a Multicast and / or Broadcast Service (MBS). A CU-CP receives, from the CU-UP, a first message including a retransmission information on data transmission related to the MBS. A CU-CP determines whether to perform a switch of the first transmission to a second transmission for the MBS based on the retransmission information.

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.

A communication method executed by a user equipment in a mobile communication system for providing a Multicast / Broadcast Service (MBS) includes the steps of: performing multicast reception in a Radio Resource Control (RRC) inactive state based on a multicast configuration received from a network through dedicated signaling; determining to access the network for update of the multicast configuration in response to determination that the update is necessary; and determining whether to apply or skip access control for restricting the access, based on configuration information from the network.

A wireless device receives one or more radio resource control (RRC) messages comprising configuration parameters of a multicast and broadcast service (MBS). The configuration parameters comprise parameters of a semi-persistent scheduling (SPS) identified by a SPS configuration index; and at least one indicator, for the SPS, indicating a feedback type from a plurality of feedback types. The wireless device receives, via common frequency resources, a downlink control information (DCI) indicating an activation of the SPS of the MBS. The wireless device receives, via downlink assignments of the SPS, transport blocks (TBs) of the MBS. The wireless device determines whether the TBs are decoded successfully or unsuccessfully; and whether to transmit feedback, for the TBs, based on the feedback type indicated by the at least one indicator. In response to the determining, the wireless device transmits the feedback for the TBs based on the feedback type.

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.

A method can include receiving, by a wireless device from a first base station, a radio resource control (RRC) release message indicating transition of the wireless device from an RRC connected state to an RRC inactive state or an RRC idle state. The method can also include performing a cell reselection of a cell of a second base station. The method can further include determining, after the cell reselection, that a configuration in the cell for a multicast and broadcast service (MBS) session that the wireless device has joined is not supported for the RRC inactive state or the RRC idle state. The method can additionally include sending, in the RRC inactive state or the RRC idle state to the second base station and based on the determining associated with the MBS session, an RRC resume request comprising an indication of a cause for the RRC resume request.

Various aspects of the present disclosure relate to quality of experience (QoE) measurements collection supported by a user equipment (UE). The UE receives a request for QoE measurements collection capabilities supported by the UE, and transmits an indication of a maximum access stratum (AS) layer buffer size capability for storing the QoE measurements in a radio resource control (RRC) idle state. The UE receives a configuration for collecting the QoE measurements for at least one multicast broadcast service (MBS). A base station transmits the request for the QoE measurements collection capabilities supported by the UE, and receives the indication of the maximum AS layer buffer size capability of the UE for storing the QoE measurements in the RRC idle state. The base station transmits the configuration of the UE for collecting the QoE measurements for the at least one MBS.

Various arrangements disclosed herein relate to multicast and broadcast service (MBS) management in various radio resource control (RRC) states, including receiving, by a wireless communication device, indication information from a network using wireless communication device-specific signaling while the wireless communication device is in a radio resource control (RRC) connected state, and transmitting the indication information to the wireless communication device. The indication information indicates a point-to-multipoint (PTM) configuration for obtaining each of a plurality of multicast and broadcast services (MBSs) from broadcast signaling. When the wireless communication device is in the RRC connected state, a PTM configuration from broadcast signaling is received from a network by the wireless communication device, the PTM configuration being used to receive a plurality of said MBSs.

A radio access network (RAN) participating in a multicast and broadcast service (MBS) session may implement a method for managing MBS communications. The method comprises: (a) performing (i) unicast communication and (ii) multicast communication with a UE operating in a connected state; (b) in response to determining that the data of the unicast communication is inactive, transmitting a message indicating that the UE will transition from the connected state to an inactive state in which the radio connection between the UE and the RAN is suspended; and (c) continuing to perform multicast communication with the UE operating in the inactive state.

To maintain MBS service continuity in idle and inactive states.SOLUTION: A method includes steps of: receiving system information including first information used for measuring neighboring cells in an RRC inactive state or an RRC idle state; performing measurements of the neighboring cells based on the first information and performing cell reselection; receiving second information indicating whether an MBS service is provided in the neighboring cells; acquiring third information that is information indicating a frequency at which the MBS service is provided in the neighboring cells and that is different from the second information; and receiving data associated with the MBS service via a cell-reselected target cell while remaining in the RRC inactive state or the RRC idle state based on the third information.SELECTED DRAWING: Figure 18

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 method, UE, and BS in an NTN is provided. The method includes receiving, from the BS, a first parameter, a second parameter, and a Semi-Persistent Scheduling (SPS) configuration, the first parameter indicating whether HARQ feedback is enabled for a first Physical Downlink Shared Channel (PDSCH) after an activation of the SPS configuration, and the second parameter indicating a HARQ reporting mode; receiving, from the BS, Downlink Control Information (DCI), the DCI triggering the activation of the SPS configuration; receiving, from the BS, the first PDSCH; determining to apply the first parameter, if both the first parameter and the second parameter are simultaneously configured, and the first parameter indicates that the HARQ feedback is enabled for the first PDSCH after the activation of the SPS configuration; and transmitting, to the BS, HARQ-ACK information for the first PDSCH, wherein the first PDSCH is associated with a Multicast Broadcast Service (MBS).

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.

To activate reception of multicast and / or broadcast services (MBS), a UE operating in an inactive state of a protocol for controlling radio resources receives, in the inactive state from a radio access network (RAN), a message including an MBS session identifier (ID). The UE initiates reception of MBS data corresponding to the MBS session ID in response to the message.

Various embodiments of the present disclosure provide a method for group message delivery. The method which may be performed by a user equipment comprises: obtaining meta data information of a group message from an application server. In accordance with an exemplary embodiment, the method further comprises: receiving a file from a multicast / broadcast service entity. The file may be transformed from the group message. In accordance with an exemplary embodiment, the method further comprises: transforming the file into the group message, according to the meta data information.

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.