Patent application number | Description | Published |
20090279469 | THE METHOD AND DEVICE FOR SENDING AND RECEIVING E-MBMS TRAFFIC DATA - The invention provides a method and device for sending MBMS traffic data based on MBMS Cell Group, the method comprises the following steps: channel coding and modulating said MBMS traffic data; determining said MBMS cell group-specific scrambling code; determining said MBMS cell-specific scrambling code; scrambling said MBMS traffic data with said MBMS cell group-specific scrambling code, and adding reference signal scrambled with said MBMS cell group-specific scrambling code and reference signal scrambled with said MBMS cell-specific scrambling code; and sending scrambled MBMS reference signal and data. With the method and the corresponding device provided by the invention, it is easy to realize RF combining or RF combining and soft combining simultaneously at UE to obtain diversity gain. | 11-12-2009 |
20090318149 | METHOD AND APPARATUS FOR ESTABLISHING A SERVICE IN A FIRST FREQUENCY - The present invention relates to a method for establishing a service in a first frequency in a communication network, wherein the first frequency does not support the service or supports it in a limited way, the method comprises the following steps: determining the service to be established, re-selecting or redirecting to a second frequency that is suitable for the service, so as to carry out the service in the second frequency. The present invention also relates to user equipment and a network apparatus for establishing a service in a first frequency in a communication network, wherein the first frequency does not support the service or supports it in a limited way. According to the present invention, a non-MBMS service may be established in the MBMS dedicated frequency, so as to carry out the non-MBMS service in the normal frequency. | 12-24-2009 |
20100080159 | EVOLVED MULTIMEDIA BROADCAST/MULTICAST SERVICE BASE STATION, USER EQUIPMENT AND METHODS THEREOF - The present invention provides a user equipment (UE), comprising: first receiving means for receiving on a first carrier information for determining a second carrier and a Multimedia Broadcast/Multicast Service (MBMS) notification; second receiving means for receiving Radio Bearer (RB) configuration information and MBMS scheduling information on the second carrier determined from the information; and control means for generating an MBMS scheduling template based on the received RB configuration information and MBMS scheduling information, wherein, the second receiving means receives MBMS data based on the MBMS scheduling template. | 04-01-2010 |
20100110961 | METHOD AND APPARATUS FOR SUPPORTING MBMS IN SYSTEM ARCHITECTURE EVOLUTION - The present invention discloses a system structure for supporting Evolved Multimedia Broadcast/Multicast Service (Evolved MBMS), comprising: a Broadcast/Multicast Service Center (BM-SC) for initiating control signaling and bearer services for Multimedia Broadcast/Multicast Service (MBMS); a System Architecture Evolved Gateway (SAE GW) for receiving MBMS service data and MBMS control signaling or service data from another network, and forwarding the received service data and control signaling; a Broadcast/Multicast Management Entity (BME) for receiving, processing and forwarding the MBMS control signaling, and determining, for each item of the service data for MBMS, an enhanced Node B (eNB) which needs to receive the control signaling; and an multicast User Plane Entity (mUPE) for receiving the MBMS service data, processing the received MBMS service data in Evolved Packet System Architecture Evolution, and forwarding the processed MBMS service data to a downstream node. | 05-06-2010 |
20100111110 | METHOD AND APPARATUS FOR GENERATING PDU AND BASE STATION THEREOF - Disclosed is a method and apparatus for generating a PDU and a base station thereof. The method for generating a PDU includes: segmenting an input SDU into at least one segmentation in such a manner that the at least one segmentation is distributed in at least one PDU; and setting an offset field and at least one length indicator field in a header of each PDU, wherein the offset field indicates an offset of a first segmentation of a first new SDU appearing in the PDU, and the length indicator field indicates the end of the new SDU or the segmentation of the new to SDU in the PDU. With the present invention, since a single SDU is indicated only using one LI even if it is segmented into a plurality of segmentations, and the LI indicates the end of SDU in one PDU, it is ensured that an eNB in the SFN can recover packets in case of multiple packets loss while avoiding de-synchronization during the contents transmission. | 05-06-2010 |
20100172282 | METHOD AND APPARATUS FOR MAPPING PILOT SIGNALS IN MULTIPLEXING MODE OF UNICAST AND BROADCAST/MULTICAST SERVICES - Disclosed is a method for mapping pilot signals in a multiplexing mode of unicast service and Multimedia Broadcast/Multicast Service (MBMS). The method comprises the steps of: generating pilot symbols for the unicast service and the MBMS service, respectively; mapping the pilot symbols for the MBMS service to multiple transmit antennas such that, in a subframe, the pilot symbols for the MBMS service for each antenna are arranged in a same time domain and adjacent to each other, the pilot symbols for the MBMS service for the same transmit antenna are spaced from each other by a predetermined number of subcarriers in the frequency domain and by a predetermined number of OFDM symbols in the time domain, and the pilot symbols for the MBMS service for the same transmit antenna are arranged in a staggered form along the time domain, and mapping the pilot symbols for the unicast service at the same time. | 07-08-2010 |
20100177676 | METHOD AND SYSTEM FOR DATA RETRANSMISSION IN MBMS - The present invention provides a method of data retransmission in MBMS (Multimedia Broadcast/Multicast Service), comprising: a step in which a base station allocates an uplink time-frequency resource block to mobile stations; a step in which the mobile stations feed back uplink feedback signalings with respect to the received downlink MBMS service data to the base station on the allocated uplink time-frequency resource block, wherein the uplink feedback signalings with respect to one and the same downlink MBMS service data are combined in one and the same uplink time-frequency resource, and the uplink feedback signalings with respect to different downlink MBMS service data are multiplexed in one uplink time-frequency resource block; a step in which the base station decides whether to retransmit a data block based on the fed-back uplink feedback signalings. | 07-15-2010 |
20100265866 | EVOLVED MULTIMEDIA BROADCAST/MULTICAST SERVICE ACCESS GATEWAY, BASE STATION AND METHODS THEREOF - The present invention provides an Evolved Multimedia Broadcast/Multicast Service (EMBMS) access gateway supporting network multicast, comprising: receiving/responding means for receiving a Multimedia Broadcast/Multicast Service (MBMS) Session Start message from a Broadcast/Multicast-Service Center (BM-SC) and for returning a response message to the BM-SC after receiving the MBMS Session Start message; storage means for storing a mapping relationship between respective MBMS service areas (SAs) and respective base stations; determining means for determining base station(s) associated with the MBMS based on the stored mapping relationship when the receiving/responding means receives the MBMS Session Start message; and transmitting means for transmitting the MBMS Session Start message to the determined bases station(s). | 10-21-2010 |
20100296491 | METHOD AND AN APPARATUS FOR SYNCHRONIZATION AMONG THE NEIGHBORING BASE STATIONS IN THE WIRELESS COMMUNICATION SYSTEM - The object of the present invention is to provide a method and an apparatus for performing synchronization among neighboring base stations in the wireless communication network. According to the technical solution of the present invention, a base station turns off a transmitter randomly to receive a synchronization signal from neighboring base stations, and obtains a new local synchronization reference time based on the synchronization reference time of other neighboring base station. With the apparatus and the method provided by the present invention, the strongly robust synchronization among base stations is realized. | 11-25-2010 |
20110268018 | GATEWAY, BASE STATION, COMMUNICATION NETWORK AND SYNCHRONIZATION METHOD THEREOF - Discloses is a gateway, base station, communication network and synchronization method thereof. The method comprises: at time T | 11-03-2011 |
20110305164 | COOPERATIVE BEAM FORMING METHOD, APPARATUS AND BASE STATION - The present invention proposes a method, device and base station for cooperative beam forming based on MBMS fixed grid of beams GoB. The cooperative beam forming method comprises following steps: grouping users into cell central user group and cell edge user group (S | 12-15-2011 |
20120002741 | METHOD FOR PERFORMING CONTENT SYNCHRONIZATION FOR DOWNLINK SERVICE DATA IN COLLABORATIVE MIMO AND APPARATUS THEREOF - A method for controlling, in collaborative MIMO of a wireless communication network, downlink service data in collaborative MIMO to perform content synchronization is provided in the present invention. The method comprises: performing, by a serving base station in the collaborative MIMO, data link layer processing on service data to be transmitted to a mobile station, so as to achieve a first data packet, and transmitting the first data packet to other collaborative base station(s) in the collaborative MIMO; thereafter, transmitting, by each base station (which may or may not include the serving base station) participating in transmitting data packets in the collaborative MIMO, the first data packet to the mobile station on the same time-frequency resource. With the technical solution of the present invention, it can be realized effectively that each base station in the collaborative MIMO transmits the same data to the mobile station on the same time-frequency resource. Namely, content synchronization of downlink service data in the collaborative MIMO can be realized. | 01-05-2012 |
20120040603 | METHOD AND APPARATUS FOR TRANSMITTING MESSAGES - A method, a base station, a Multimedia Broadcast Multicast Service (MBMS) Coordination Entity (MCE), and a system for transmitting messages are provided. The method includes the steps of: defining a transmission order for different services in a service area; defining an arranging order of different messages in the same Transport Block (TB); generating and transmitting first messages carrying the transmission order for different services and the arranging order of different messages so as to synchronize contents of the first message TBs. According to the above technical solutions, the content synchronization of the MCCH RRC message TBs may be achieved. | 02-16-2012 |
20120044858 | METHOD AND APPARATUS FOR DATA PACKET RELAYING AND DATA PACKET DECODING - The present invention provides a technical scheme for forwarding data packets from one or more user terminals in a relay station, and a technical scheme for decoding the multiple data packets from the user terminals in a base station. The relay station performs network encoding on copies of multiple user terminal packets from one or more user terminals to obtain a network encoded data packet and sends the data packet to the base station. The base station receives copies of multiple user terminal packets from one or more user terminals, respectively, and a network encoded data packets from the relay station, and performs joint soft combining and decoding on them. | 02-23-2012 |
20120088535 | METHOD AND DEVICE FOR ALLOCATING SAME RESOURCE FOR A PLURALITY OF ENBS OF COLLABORATIVE MIMO - The present invention provides a method and device for allocating same resource for a plurality of eNBs of collaborative Multiple-input-Multiple-output (MIMO). Wherein a serving eNB firstly determines, in the one or more other eNBs, at least one candidate eNB recommended to cooperate with the serving eNB, according to measurement report reported by mobile stations or according to report information of the recommended candidate eNB reported by mobile station, then obtains resource related information of the at least one candidate eNB, then determines one or more collaborative eNBs from the at least one candidate eNB according to the resource related information, and allocates corresponding communication resources for the serving eNB and the one or more collaborative eNBs. The solution according to the present does not need to reserve special resource for collaborative MIMO, reduces waste of resource, and meets the requirement of resource for implementing collaborative MIMO by different serving eNBs flexibly, and increases the success rate of implementing collaborative MIMO. | 04-12-2012 |
20120099468 | METHOD AND APPARATUS FOR CONTROLLING DOWNLINK DATA SYNCHRONIZATION IN AN eMBMS TRANSMISSION - The invention proposes a technical scheme for controlling downlink data synchronization in an eMBMS transmission in a radio link control entity in a base station. By determining one length indicator for each service data unit, and meanwhile, each length indicator corresponds to one extension bit, the length indicator and the extension bit of each RLC SDU are byte aligned, and the base station generates different length indicators for the service data units with the different length distribution. By adopting the technical scheme of the invention, the corresponding radio link control header overhead thereof is fixed for each service data unit, and therefore, even in the case where a consecutive packet loss occurs in the service data unit received by a certain base station, synchronization between it and other base stations receiving correctly can still be achieved. | 04-26-2012 |
20120176953 | APPARATUS AND METHOD FOR PROVIDING MULTICAST SERVICE IN A COMMUNICATION SYSTEM - A method for providing a multicast service in a communication system and an apparatus for implementing the method are provided in the present invention. The communication system comprises at least one user equipment and a server for providing a service to the at least one user equipment. The method comprises steps of: determining, by the server, an MBMS multicast group to provide a multicast service; transmitting, by the server, MBMS service control information required to provide an MBMS service to user equipments within the MBMS multicast group, to a BM-SC in an e-MBMS network; determining, by the BM-SC, an MBMS service area and triggering in the MBMS service area an MBMS bearer setup procedure for user equipments within the MBMS multicast group, based on the received MBMS service control information; forwarding, by the server, data to provide a service to the BM-SC; and distributing, by the BM-SC, the data to each of the user equipments within the MBMS multicast group, via the set up MBMS bearer. The method according to the present invention enables to perform multicast within an MBMS multicast group in case that the multicast is not supported by a radio network. | 07-12-2012 |
20120300691 | INTEGRATED MULTI-DATASTREAM TRANSMISSION TECHNOLOGY - The present invention is related to integrated multi-datastream transmission technology, more particularly, to integrated multi-datastream modulation technology. According to one aspect of the present invention, there is provided a modulation equipment ( | 11-29-2012 |
20140022976 | METHOD AND APPARATUS FOR PERFORMING MBMS COMMUNICATIONS AND METHOD AND APPARATUS FOR RECEIVING MBMSS - Embodiments of the present invention provide a method and apparatus for performing MBMS service communications and a method and apparatus for receiving an MBMS service. Specifically, there is provided a method for performing MBMS service communications, comprising acquiring location area information of an MBMS service distribution; and notifying a UE of the location area information of the MBMS service distribution. Further, there is provided a method for receiving an MBMS service, comprising receiving location area information of an MBMS service distribution; comparing location information of a UE with the location area information of the MBMS service distribution; and determining whether to read an MCCH and MCCH information change notification based on a comparison result. | 01-23-2014 |