181 results about "Multicast-broadcast single-frequency network" patented technology

A method for receiving a downlink signal from a base station (BS) in a multicast broadcast single frequency network (MBSFN) subframe is disclosed. The method is performed by a user equipment (UE) and includes receiving information indicating an MBSFN subframe configured as an almost blank subframe (ABS) (ABS MBSFN subframe) among MBSFN subframes of which a data region is allocated a reduced transmission power lower than a transmission power in a data region of a normal subframe, and demodulating the downlink signal received in the data region of the ABS MBSFN subframe based on a cell-specific reference signal (CRS) in a control region of the ABS MBSFN subframe according to the information.

A method and eMBMS-enabled infrastructure device are disclosed that provide an updated mechanism for a client, or user equipment (UE), to report its location such that an eMBMS-enabled application desiring eMBMS location information can uniquely identify the MBSFN in which the UE is located. The method and eMBMS-enabled infrastructure device identify an eMBMS area associated with a user equipment UE by receiving, from the UE, a Multicast Broadcast Single Frequency Network (MBSFN) Area update message from a user equipment, wherein the MBSFN Area update message uniquely identifies an MBSFN Area and includes an extension identifier derived from one or more of a cell identifier, an eNodeB identifier, an identifier of a group of cells, a service identifier, a tracking area identifier, and a paging area identifier, and optionally further may include an MBSFN AreaID, and determining an MBSFN Area serving the user equipment based on the received eMBMS area identifier.

The invention discloses a resource scheduling method, device and base station for long-term evolution system multicast broadcasting service. The method comprises the steps that the base station identifies whether the number of users meets the predetermined first broadcasting threshold condition in a predetermined cycle or in real time according to the number of the users subscribing the eMBMS service in a multicast broadcasting single frequency network (MBSFN) region; the number, meeting the first broadcasting threshold value, of the users is responded, the base station distributes multicast broadcasting subframes BMS to serve as service subframes, and a control channel comprised by the BMS contains instruction information of service data received by a user terminal through a data channel; the number, which does not meet the first broadcasting threshold value, of the users is responded, unicast subframes are distributed to serve as the service subframes, and the service data are borne; the base station inserts the service subframes in a downlink data frame sequence, and sends the data frame sequence to the user terminal in the MBSFN region. According to the technical scheme, scheduling modes of the base station can be flexibly switched between the multicast broadcasting mode and the unicast broadcasting mode, and the flexibility and the resource utilization rate of eMBMS service resource scheduling are improved.

A signal transmission method using a multicast broadcast single frequency network (MBSFN) subframe in a radio communication system is provided. The method includes: selecting a plurality of relay stations for transmitting a plurality of backhaul signals, and transmitting the plurality of backhaul signals to the selected respective relay stations by using different radio resources, wherein each of the selected relay stations configures a subframe for receiving each of the plurality of backhaul signals as the MBSFN subframe. Accordingly, the backhaul signal can be transmitted between the base station and the plurality of relay stations by effectively using the radio resources.

A technique for detecting a neighboring node in a cellular communication network is disclosed. The neighboring node may employ a different radio access technology (RAT) and / or operate at a different frequency than adjacent nodes. The neighboring node transmits cell-specific or user equipment (UE) specific information using one or more Multicast Broadcast Single Frequency Network (MBSFN) subframes. This information can include data and / or control signaling for handover processing. A UE currently being served by another node can monitor the MBSFN subframes and initiate a search for the neighboring node, including inter-frequency measurements, based on the information contained in the MBSFN subframes. This allows UEs located at cell boundaries to become aware of the presence of the neighboring node, and may reduce UE power consumption used in searching for neighboring nodes, particularly those operating at a different carrier frequency or having a different RAT, for example, a wireless local area network (WIAN).

A method and system for requesting a Physical PMCH are provided. The method includes: user equipment determines a target cell to be immigrated which is adjacent to a cell where the user equipment is located; and if the user equipment judges that a preconfigured Multicast Broadcast Single Frequency Network (MBSFN) area in the adjacent target cell does not comprise the MBSFN area used by the Multimedia Broadcast Multicast Service (MBMS) service / group call currently received by the user equipment, the user equipment requests a network side equipment to allocate a PMCH for the currently received MBMS service / group call. According to the technical solution provided in the present invention, the service continuity of the PTT communication user in a receiving state during the moving process is implemented.

The present specification discloses a transmission / reception method for a machine type communication (MTC) apparatus. The transmission / reception method for the MTC apparatus may comprise the steps of: receiving, by the MTC apparatus, setting information about a multicast-broadcast single-frequency network (MBSFN) subframe from a base station; receiving, by the MTC apparatus, downlink data for the MTC apparatus, on a data region of the MBSFN subframe; and receiving, by the MTC apparatus, a cell-specific reference signal (CRS) only on a portion of the resource blocks (RBs) in the whole system bandwidth of the data region in the MBSFN subframe. Here, the CRS received only on the portion of RBs may be transmitted while electric power is increased by means of the base station.

A user equipment (UE) in a cellular telecommunications system is able to detect the uplink / downlink configuration of a detected neighboring cell by receiving a signal from the neighboring cell. A characteristic of the received signal is detected and used as an indicator in a blind detection process to identify one or more downlink slots in the received signal. Known pilot signals in the identified one or more downlink slots can then be used to obtain a signal power measurement of the received signal. The blind detection process is also capable of detecting whether a slot of a neighboring cell's signal is a downlink unicast slot or a Multicast-Broadcast Single Frequency Network slot.

A method for measuring a reference signal for location determination in a wireless communication system, according to an embodiment of the present invention, is performed by means of a terminal. The method comprises the steps of: receiving the auxiliary data related to neighbor cells and a reference cell for location determination; by means of the auxiliary data, receiving a positioning referencesignal (PRS) or a cell-specific reference signal (CRS) of the reference cell or the neighbor cells and calculating a reference signal time difference (RSTD) measurement value; and reporting the measurement value to a location server, wherein the auxiliary data can comprise information about the number of CRS antenna ports of the reference cell and neighbor cells, CRS cyclic prefix (CP) length information, or configuration information about multicast broadcast single frequency network (MBSFN) subframes.

The invention discloses a method and a device for transmitting multimedia broadcast and multicast service (MBMS) control data. When the MBMS control data is sent, subframes for carrying MSBM broadcast channels and synchronizing channels all adopt a method and a device for sending with a single cell, thereby avoiding the problem that UE in a cell of two multicast broadcast single frequency network (MBSFN) overlapped areas cannot determine how to deploy physical broadcast channels on the premise of guaranteeing lower sending complexity. Furthermore, physical multicast control channel (P-MCCH) is also transmitted by the subframes, thus the problem that the UE of a non-overlapped part of an area covered with overlapped MBSFN cannot receive specific MBMS data after receiving P-MCCH and secondary multicast control channel (S-MCCH) is further solved so as to reduce the complexity for sending the MBMS control data of a system under the condition of covering different MBSFN areas.

A method of relaying data in a time division duplex (TDD)-based wireless communication system is provided. The method includes configuring a downlink subframe as a multicast / broadcast single frequency network (MBSFN) subframe, receiving downlink data in the MBSFN subframe; and relaying uplink data to a base station in an uplink subframe, wherein the downlink subframe is linked to the uplink subframe which is reserved to transmit an acknowledgement (ACK) / non-acknowledgement (NACK) signal for downlink data transmission in the downlink subframe. Accordingly, in the TDD-based wireless communication system, efficiency of resource allocation can be increased, and uplink ACK collision can be avoided.

The invention discloses an information reporting / receiving method and device and a bearer establishing method and device. The information receiving method is characterized by comprising that terminal equipment sends indication information to an access network node, wherein the indication information is used for indicating that information to be reported by the terminal equipment is information to be sent on time and frequency resources corresponding to a multicast broadcast single frequency network area; the access network node requests network-side equipment to establish a service bearer for the information to be reported by the terminal equipment; the network-side equipment establishes a service bearer, wherein the service bearer comprises a wireless bearer used by the terminal equipment for reporting information to the access network node and notifying configuration information of the service bearer established by the access network node; and the access network node configures a wireless bearer for the information to be reported of the terminal equipment according to the configuration information, notifies the terminal equipment to report the information on the configured wireless bearer, and receives the information reported by the terminal equipment on the configured wireless bearer. According to the invention, the terminal equipment receives a notification; and information is collected, and the information is reported on the wireless bearer according to the configuration information. By adopting the method and device disclosed by the invention, requirements of services having specific requirements for time delay can be met.

Aspects of the subject disclosure may include, for example, a method, including receiving from media gateway devices session information that determines communicative couplings between media gateway devices and wireless communication nodes, and detecting a failure of a first media gateway device that provides for transmission of media streams to a first group of wireless communication nodes over a multicast-broadcast single frequency network. The method includes accessing, from the session information, first session information of the first media gateway device, initiating second communicative couplings to the first group of communicative nodes according to the first session information, receiving a unicast stream from a content server that is identified according to the first session information, generating a second multicast stream from the unicast stream, and, in turn, transmitting the second multicast stream over the multicast-broadcast single frequency network to the first group of wireless communication nodes. Other embodiments are disclosed.

A method of handling a multimedia broadcast multicast service (MBMS) minimization of driver test (MDT) for a network of a wireless communication system includes transmitting a first MBMS measurement configuration to instruct a first user equipment (UE) to perform an MBMS MDT operation; receiving a first MBMS measurement result and a first multicast-broadcast single frequency network (MBSFN) area identity (ID) which indicates that the first MBMS measurement result is generated for a first MBSFN area identified by the first MBSFN area ID, from the first UE; and processing the first MBMS measurement result according to the first MBSFN area ID.

According to an aspect of the present invention, a method for receiving a downlink signal from a base station (BS) in a multicast broadcast single frequency network (MBSFN) subframe which performed by a user equipment (UE) includes receiving information indicating an MBSFN subframe of which a data region is allocated a cell-specific reference signal (CRS), among MBSFN subframes, and demodulating the downlink signal received in the data region of the MBSFN subframe based on the CRS in the data region of the MBSFN subframe according to the information.

The invention relates to a method for receiving multimedia broadcast and multicast service, comprising the following steps of: receiving MBSFN / IMB (Multicast Broadcast Single Frequency Network) / (Integrated Mobile Broadcast) carrier measuring information issued by a network side by a terminal and carrying MBSFN / IMB carrier signal quality standard; measuring the MBSFN / IMB carrier by the terminal and comparing the measuring result with the MBSFN / IMB carrier signal quality standard; receiving MBMS (Multimedia Broadcast Multicast Service) by using the MBSFN / IMB carrier if the measuring result reaches the MBSFN / IMB carrier signal quality standard; and avoiding using the MBSFN / IMB carrier to receive the MBMS if the measuring result fails to reach the MBSFN / IMB carrier signal quality standard. The invention also provides a corresponding terminal and a system including the terminal and a network side network element. The invention can solve the problem of the continuity for receiving the MBMS when the UE (User Equipment) moves in different carrier covering regions.

The invention relates to a transmission method and a system for subframe identification information, belonging to the field of communication. The method comprises the following steps: a transmitting end transmits the subframe identification information to an R10 receiving end in a physical downlink control channel (PDCCH) configured for transmitting a multicast broadcast single-frequency network (MBSFN) subframe of a physical downlink shared channel (PDSCH) for the R10 receiving end, wherein the subframe identification information is used for indicating that the MBSFN subframe is a multicast MBSFN subframe for transmitting PDSCH of the R10 receiving end. With a technical scheme of the invention, aim of an indication subframe can be effectively implemented, rapidity of indication information can be satisfied, and by adopting the method, the system is suitable for transmitting the indication information without increasing complexity of the receiving end.

A method between a controlling server and a participating server, a network, and a server include enhanced signaling via a Multicast-Broadcast Single Frequency Network (MBSFN) report allowing User Equipment (UE) to communicate MBSFN areas to a controlling server. Thus, the enhanced controlling server's Multimedia Broadcast Multicast Services (MBMS) decisions can count all visiting devices in addition to its own in its MBSFN areas. The method, network, and server include new signaling and additional info to provide a participating server with MBSFN areas that will have MBMS activated for a group session. This enhances the participating server's determination of which its visiting devices need unicast bearers. The participating server can add information related to the current MBSFN area of its UE to a message to the controlling server indicating joining the UE to a group.

The inventive embodiment relates to a communication method of a time-division duplex (TDD) system and a device. The communication method of the time-division duplex system comprises: informing user equipment of the ratio of uplink sub-frames to downlink sub-frames of wireless frame, indicating a portion of downlink sub-frames corresponding to the ratio of uplink sub-frames to downlink sub-frames of the wireless frame to MBSFN (multicast-broadcast single frequency network) sub-frames; and transmitting first information to the user equipment, wherein the first information is used for indicating that the multicast region of the MBSFN sub-frames is used for uplink communication or downlink communication. According to the embodiment of the invention, the ratio of the uplink and downlink resources can be matched with the instant uplink and downlink business amount by using the first information to indicate that the multicast region of the MBSFN sub-frame is used for uplink communication or downlink communication, thereby effectively utilizing resources. Meanwhile, backward compatibility can be realized by configuring the downlink sub-frames to the MBSFN sub-frames, so as to ensure that user equipments of the new and old versions using different HARQ (hybrid automatic repeat request) time sequences in the TDD system network can work normally at the same time.

The embodiment of the invention relates to wireless communication technology, in particular to a method, a system and a device for transmitting data, which are used for solving the problem that resource waste is caused because a network side and a user terminal cannot transmit the data by using a multimedia broadcast single frequency network (MBSFN) sub-frame which does not actually bear multimedia broadcast multicast service (MBMS) in the prior art. The method of the embodiment of the invention comprises the following steps that: the network side generates configuration information which can make the user terminal to determine an idle MBSFN sub-frame when the idle MBSFN sub-frame exists in a multicast channel (MCH), wherein the idle MBSFN sub-frame is the MBSFN sub-frame which does not actually bear the MBMS data during transmission of the MBMS service; the network side transmits the configuration information to the user terminal for indicating the user terminal to monitor the idle MBSFN sub-frame determined according to the configuration information; and the network side and the user terminal transmit non-MBMS data through the idle MBSFN sub-frame.

The invention discloses method and equipment for receiving and transmitting scheduling information. The method comprises the steps of: determining an idle MCH (Multicast Channel) or PMCH (Physical Multicast Channel), wherein the idle MCH or PMCH has an idle MBSFN (Multicast Broadcast Single Frequency Network) subframe; determining an indication MCH or PMCH, wherein the indication MCH or PMCH and the idle MCH or PMCH are positioned in the same MBSFN region; carrying indication information in scheduling information corresponding to the indication MCH or PMCH, wherein the indication information comprises whether an MCH or PMCH in the indication MBSFN region is an idle MCH or PMCH, and / or resource positions of idle MBSFN subframes on the indication idle MCH or PMCH; and sending the schedulinginformation on the indication MCH or PMCH. By using the invention, user equipment can obtain information of an idle MBSFN subframe, and can avoid the waste of wireless resources on the idle MBSFN subframe.

The invention discloses a base station internal synchronization method of a hierarchical system and a base station. The method comprises the following steps of: synchronizing the base station in a synchronous position in the configuration information of a second multicast / broadcast single frequency network subframe; submitting the configuration modification of a first multicast / broadcast single frequency network subframe to a network administer when the base station confirms that the configuration of the first multicast / broadcast single frequency network subframe is modified or submitting theconfiguration modification of the first multicast / broadcast single frequency network subframe to the network administer when the base station confirms that the configuration modification of the firstmulticast / broadcast single frequency network subframe can influence a second multicast / broadcast single frequency network subframe in the synchronous position; and synchronizing the base station in asynchronous position in the configuration information of a third multicast / broadcast single frequency network subframe, wherein the configuration information of the third multicast / broadcast single frequency network subframe is distributed by the network administer according to the configuration modification of the first multicast / broadcast single frequency network subframe. The invention provides a synchronization scheme with backward compatibility.

The invention discloses a method, a system and a device for transmitting an enhanced type multimedia broadcast multicast service (EMBMS), which are applied to improving the EMBMS receiving quality of a user terminal. A method for receiving the EMBMS is applied to the process of receiving the EMBMS by the user terminal in an idle state by using multi-cell point-to-multipoint mode resources in a multicast broadcast single frequency network, and comprises the following steps that: the user terminal sends an EMBMS request message to a network side; the user terminal receives configuration information of single-cell point-to-multipoint mode resources established by the network side for transmitting the EMBMS; and the user terminal acquires the new resources allocated by the network side for transmitting the EMBMS, and uses the resources to receive the EMBMS. The method, the system and the device are mainly applied to transmitting and receiving the EMBMS in the multicast broadcast single frequency network, improving the EMBMS receiving quality, and ensuring the EMBMS receiving continuity.

A method of performing a feedback for a multicast and broadcast service (MBS) is disclosed. A Multicast Broadcast Service (MBS) feedback method includes, generating, by a base station contained in a multi-cell multicast broadcast single frequency network (MBSFN) zone, a ranging channel code for a multicast broadcast service (MBS) feedback, allocating the ranging channel code to a mobile station contained in a cell zone of the base station, and receiving the MBS feedback information based on the ranging channel code from the mobile station. So, an adaptive modulation and coding (AMC) is applied to the MBS according to the NACK feedback, such that a throughput of the MBS system increases.

The present invention provides a method for notifying Multicast Broadcast Single Frequency Network (MBSFN) subframe configuration, which comprises the following steps: a first node sends its MBSFN subframe configuration, via an X2 interface, to a second node with which the first node is connected; the first node receives the MBSFN subframe configuration of the second node as a feedback. According to the invention, a serving cell can obtain the MBSFN subframe configurations of the neighboring cells and / or RNs, so that rational utilization of resources is achieved according to the configurations. Therefore, interference between cells is reduced, and system capacity and efficiency are improved.

The invention discloses a method and equipment for processing resource conflict. The method comprises the following steps of: determining whether sending resources of a multicast and broadcast single-frequency network subframe conflict with sending resources of semi-persistent scheduling data or not; and after determining that the sending resources of the multicast and broadcast single-frequency network subframe conflict with the sending resources of the semi-persistent scheduling data, canceling sending the semi-persistent scheduling data on conflicting resources by a base station, and canceling receiving the semi-persistent scheduling data on the conflicting resources by user equipment. Through the method and the equipment, the problems when the multicast and broadcast single-frequency network subframe conflicts with semi-persistent scheduling resources are solved, and users can receive a semi-persistent scheduling service conveniently and also can receive the multicast and broadcast single-frequency network service.

The invention relates to the field of communication, and discloses a method, a device and a system for configuring multicast broadcast single frequency network (MBSFN) sub-frames, which are used for balancing the data throughput of a long term evolution advanced (LTE-A) system. The method comprises that: a relay node reports MBSFN configuration reference information which is locally configured or downloaded by an operation administration and maintenance (OAM) entity, and a donor E-UTRAN NodeB (DeNB) can acquire the resource need conditions of an access link of the relay node according to the received MBSFN configuration reference information to configure an accurate number of MBSFN sub-frames at accurate positions for the RN. Therefore, the phenomenon of data jamming or small data volume in the system can be avoided, the data capacity of the system can be balanced, and the overall data throughput performance of the system can be further improved effectively. Simultaneously, the invention discloses the DeNB, the RN and a communication system.

The embodiment of the invention provides a method and device for notifying MBSFN (Multicast Broadcast Single Frequency Network) subframe positions and applications, relating to the communication field, wherein an MBSFN subframe position occupied by each MCH (Multicast Channel) can be simply and flexibly notified, and the size of a transmission field is constant; all UE (User equipment) can also be flexibly notified that the applications of the MBSFN subframes are changed. The embodiment of the invention provides one method comprising the step of: transmitting a bitmap and the position of theMBSFN subframe occupied by each MCH in the bitmap, wherein the length of the bitmap is the number of the subframes which are indicated by reserved subframe arrays in system broadcast information and can be used for MBSFN transmission in the maximum period of the MBSFN subframes of the current MBSFN area transmission. The embodiment of the invention provides another method comprising the step of: transmitting a physical format indication channel (PCFICH), wherein the applications of the MBSFN subframes are indicated in the PCFICH.

The invention discloses an information sending and receiving processing method and equipment in a long-term evolution system. The sending processing comprises the following steps: establishing the relevant information of multimedia broadcast / multicast business content, a multicast broadcast single frequency network region of sending the business content and a multicast control channel resource position corresponding to the multicast broadcast single frequency network region; and sending the relevant information of the business content to a user. Correspondingly, when the receiving process is carried out, the business content is read according to the relevance. The invention provides the technical scheme for providing the information relevant to the multimedia broadcast / multicast business content to user equipment, and a technical scheme that the user equipment searches the corresponding multicast control channel and multimedia broadcast / multicast business channel resources according to the received information relevant to the business content.

The invention discloses a method and system for realizing MBMS (Multimedia Broadcast Multicast Service) service scheduling. The method comprises the following steps of: setting a scheduling condition in a scheduling network element; and scheduling the multimedia broadcast multicast service (MBMS) service by taking a cell in a multicast broadcast single frequency network (MBSFN) region as an object according to the scheduling condition. According to the method, the MBMS service scheduling by taking the cell in the MBSFN region as an object is realized, and transmission of the MBMS service in the cell is prevented from being closed in a cell where no user receives the MBMS service, or when the number of users receiving the MBMS service in the cell is lower than a threshold, so that the utilization ratio of wireless resources is increased, and waste of transmission power is avoided.