1074 results about "EnodeB" patented technology

The invention relates to methods for reporting on downlink timings by a mobile terminal in a mobile communication system. In order to allow for an aggregation access point to obtain information on propagation delay differences of downlink transmissions on aggregated serving cells, the invention suggests the mobile terminal to report timing information based on reception time difference information for a the target/reference cell. The mobile terminal performs measurements relating to transmission and/or reception time differences on the target/reference cell, and reports same to the eNodeB. The eNodeB compares the measurement result to a predefined maximum propagation delay time difference. Alternatively, the mobile terminal performs the measurements, compares same to the predefined maximum propagation delay time difference and then report the comparison result to the eNodeB.

Dual-connectivity for the User Equipment (UE) in a cellular network is performed by monitoring a plurality of cells. During dual-connectivity, the UE may be simultaneously connected to one serving cell for the Control Plane (C-plane) and to another serving cell, controlled by a different eNodeB, for the User Plane (U-plane). In another embodiment, the dual-connected UE monitors a Physical Downlink Control Channel (PDCCH) from the first eNB and monitors an EPDCCH from the second eNB.

The method for an eNodeB transmitting control channels with pre-allocated resources comprising steps of the eNodeB determining whether to transmit the control channels according to its needs; the eNodeB transmitting the control channels with pre-allocated resources according to properties of the signaling to be transmitted. With the method proposed in present invention, operations in a receiving end are simplified so that the time spent in receiving signaling is shortened and power consumption is well reduced.

Provided are a method for machine type communication (MTC) user equipment (UE) to connect to an evolved Node-B (eNB) in a random access procedure, and an apparatus employing the method. The method for MTC UE to connect to an eNB includes receiving, at the MTC UE, system information or a handover command from the eNB, transmitting, at the MTC UE, a random access preamble to the eNB, receiving, at the MTC UE, a random access response message from the eNB, and transmitting, at the MTC UE, a connection request message or a handover confirm message including information about a dedicated bandwidth of the MTC UE to the eNB such that the MTC UE can be allocated the dedicated bandwidth. Using this method, an eNB is notified of a dedicated bandwidth of MTC UE, and thus can effectively utilize radio resources.

The invention relates to a new structure of a control channel region within a sub-frame of a 3GPP-based based communication system using OFDM in the downlink. This new structure of a control channel region is inter alia particularly suitable for conveying physical downlink control channel information from a donor eNodeB to a relay node. The control channel region is divided in CCEs that have equal size irrespective of the presence of further cell-specific and/or UE-specific reference signals within the control channel region. This is achieved by dividing the control channel region in plural sub-CCEs that are combined to CCEs all having equal size (in terms of resource elements that can be used for the signaling of control information). The control channel region is divided in the frequency domain and/or time domain in a FDM respectively TDM fashion in order to obtain the sub-CCEs

An apparatus and method for dynamically changing an uplink and downlink ratio configuration is disclosed herein. An evolved Node B (eNodeB) operating in a wireless communications network transmits a System Information Block Type 1 (SIB1) including first uplink and downlink ratio configuration information. The eNodeB also transmits in at least one downlink sub frame of a radio frame configured in the first uplink and downlink ratio configuration second uplink and downlink ratio configuration information. The second uplink and downlink ratio configuration information is included in a downlink control information (DCI) message. The DCI message is included in the at least one downlink subframe of the radio frame.

The embodiment of the invention discloses a network slice selection method, UE, MME and a system, which relates to the field of communication and is used for realizing network slice selection without adding new network elements. The network slice selection method comprises the steps that the UE receives network slice information sent by the mobile management entity MME from eNodeB, wherein the network slice information indicates the network slice type supported by the network side; the UE selects the corresponding network slice according to the network slice information and the own service type; and the UE forwards request information to the MME through the eNodeB to determine whether the UE is allowed to access the corresponding network slice after the authentication of the MME, wherein the request information indicates the corresponding network slice. The embodiment of the present invention is applied to 5G network slice selection.

This invention includes signaling schemes for communicating the PDSCH muting configuration from the eNodeB to its UEs so that they can measure inter-cell CSI if configured. The base station transmits to each served user equipment a number signal indicating a number of allowed muting configurations, parameters for each allowed muting configuration and an enable/disable signal. Each served user equipment mutes or does not mute a physical downlink shared channel according to one of the allowed muting configurations and the state of a corresponding bit of the enable/disable signal.

An apparatus and a method for generation of channel state information in a wireless communication system are provided. The method includes transmitting, by an evolved Node B (eNB), a first reference signal to a plurality of User Equipments (UEs), receiving channel state information generated based on the first reference signal from the plurality of UEs, selecting candidate UEs to which wireless resources are to be allocated and transmitting second reference signals to the selected candidate UEs, receiving channel state information generated based on the second reference signals from the candidate UEs, and selecting final UEs, to which wireless resources are to be allocated, from the candidate UEs based on the channel state information generated based on the second reference signals, and transmitting control information for data reception to the selected final UEs.

A method and apparatus is configured to control a discontinuous reception (DRX) in a mobile communication system. The method includes: interrupting the DRX operation when a radio resource control (RRC) connection reestablishment procedure is initiated; transmitting an RRC connection reestablishment request message from the user equipment to an evolved node B (ENB); receiving an RRC connection reestablishment message from the ENB to the user equipment; and resuming, if the received RRC connection reestablishment message contains new DRX setting information, the interrupted DRX operation according to the new DRX setting information. The DRX operation can be interrupted or resumed at a proper time point when an RRC connection is reestablished or reconfigured or a handover is performed, thereby reducing power consumption in the user equipment.

An eNodeB (eNB), user equipment (UE) and method for operating using a reduced data transmission bandwidth are generally described. The UE may receive downlink control information (DCI) that provides a resource allocation (RA) of a reduced physical resource block (PRB_min) of less than 1 PRB for communications in a PRB of a subframe. Whether the RA is localized or distributed may be predefined, configured via system information block or Radio Resource Control signaling, or indicated in the DCI format. The DCI format may specify the resources within the PRB allocated to the UE through a subcarrier block index and total number of subcarrier blocks or a bitmap corresponding to a unique block of subcarriers or block index. An order in a list of cell Radio Network Temporary Identifiers (RNTIs) may be used with a common RNTI to derive the reduced RA from a 1 PRB RA.

Aiming at the requirements of frequent cell handover, short handover time and high handover success rate in high-speed railway TD-LTE communication system, a fast handover method of TD-LTE communication system based on target cell pre-carrying is proposed. According to the train's running position, speed and direction, after the network planning is completed, a list of neighboring cells is generated in advance, and the switching position of each switching zone is preset, that is, the longitude and latitude position information. Before the train enters the overlapping area of ​​switching between two cells , when the distance from entering the handover zone is a certain value L, the source base station eNodeB determines and sends the pre-bearer information to the target base station eNodeB according to the measurement report of the user terminal UE, and the target base station eNodeB performs the evolution packet system ( Evolved Packet System (EPS) resources to bear the load, when the train enters the handover zone, if the train meets the handover criteria, the train will be handed over from the source cell to the target cell. Therefore, this method reduces the handover delay and is beneficial to improve the handover success rate. The method can dynamically adjust the switching method according to the mobile speed of the UE, solve the problem of fast switching in a high-speed mobile environment, reduce the number of communication drops, improve the success rate of switching, enhance the service quality of high-speed broadband mobile services, and promote high-speed railway trains. The development of domestic multimedia broadband mobile Internet services meets the growing needs of passengers for mobile communication services.

A network management device and method for coordination of self-optimization functions in a wireless network. A network management device for coordination of self-optimization functions includes one or more processors and an interface. The interface communicates with a plurality of enhanced node Bs (eNodeBs). The interface is arranged to receive a request to change a coverage or a capacity of an enhanced node B (eNodeB). The interface is further arranged to transmit a query to the eNodeB to obtain a self-optimizing network (SON) coordination state of the eNodeB. The one or more processors are arranged to determine whether to grant or deny the request based on a coordination policy and the SON coordination state.

Device-to-device (D2D) communication is one alternative to communication between devices through a radio access network. One interesting D2D communication method is reuse-mode D2D, where D2D nodes communicate with each other using the same uplink (UL) radio resource that is being used by some other cellular user equipment(s) (UEs). In other words, the UL cellular resources occupied by cellular UEs are reused by D2D nodes in their short-range communications. Centralized control of D2D communication can be performed by appropriate signaling between a D2D-capable UE and an evolved Node B (eNB).

A master evolved Node-B (MeNB) connects to a user terminal together with a secondary evolved Node-B (SeNB) in a dual connectivity scheme. The MeNB includes: transmitter configured to transmit a message to the SeNB via an X2 interface. The message is an SeNB addition request message or an SeNB modification request message. The message includes identification information of a serving gateway connected with the MeNB via an S1 interface. The identification information includes an S1 tunnel endpoint ID (S1-TEID) of the serving gateway or an internet protocol (IP) address of the serving gateway.

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 embodiment provides a business providing system and method,a mobile edge application server and a support node thereof. The system comprises at least one mobile edge application server MEAS and the mobile edge application server support node MEAS-SF; the MEAS is demployed on the access network side and connected with one or more base stations; the MEAS-SF is demployed on the core network side and is connected with one or more MEAS, and is connected with a grouped data gateway P-GW. The emobodiment provides the business providing system, and SP providing content, application service and the like are deployed on the MEAS, so when the MEAS can provide the business requested by business request for user equipment, business data can be locally requested from business request, because the MEAS is normally deployed in a position close to an eNodeB in a physical manner, the user equipment can directly obtain the needed business data from the RAN side, therby preventing data congestion between the RAN and CN, and saving network resources.

A method and apparatus for performing a handover procedure in a wireless communication system is provided. A master eNodeB (MeNB), in dual connectivity, performs a handover decision from a source secondary eNB (SeNB) to a target SeNB, and transmits an offloading request message, which includes contexts of E-UTRAN radio access bearers (E-RABs) to be offloaded and an offloading indication, to the target SeNB. The MeNB receives an offloading request acknowledge message, which includes identifiers (IDs) of E-RABs accepted by the target SeNB, as a response to the offloading request message from the target SeNB, and transmits an offloading mobility indication to a user equipment (UE).

An apparatus and method of allowing user equipment (UE) to transmit information directly with other user equipment, using a device-to-device (D2D) mode is disclosed herein. A D2D UE (dUE1) that wishes so communicate to another UE (dUE2) in D2D mode makes various communications requests to an Evolved Node B (eNB), which can facilitate the connection between dUE1 and dUE2 by having the dUE1 measure the signals from dUE2 to help establish a D2D connection between the dUE1 and the dUE2.

Disclosed is a method for establishing a CoMP cooperating set in coordinated multi-point communication, the method comprising the steps of: triggering and starting a coordinated multi-point communication process; according to channel state information of all cells in a measurement cell set measured by a UE, determining a candidate CoMP cooperating set; sending a CoMP cooperating set establishment request to eNodeBs of the cooperating cells in the determined candidate CoMP cooperating set; the eNodeBs being of the cooperating cell and receiving the CoMP cooperating set establishment request responding to the CoMP cooperating set establishment request to the eNodeB of the serving cell of the UE, and sending a CoMP cooperating set establishment response to the eNodeB of the serving cell of the UE; the eNodeB of the serving cell of the UE determining a CoMP cooperating set of the UE according to information of the CoMP cooperating set establishment response; and according to a coordinated multi-point communication mode, sharing data information and service bearer information of the UE of the CoMP cooperating set. The present invention guarantees coordinated multi-point joint transmission/reception, decreases the overhead and complexity of the communication system and furthermore reduces the time delay in the information exchange.

A method and apparatus for communicating with a user equipment via a time division duplex (TDD) frame using a short transmission time interval (TTI) in a wireless communication system is provided. An eNodeB (eNB) configures the TDD frame including a set of short downlink (DL) TTIs and a set of short uplink (UL) TTIs, and communicates with the UE via the TDD frame. A length of a short DL TTI and a short UL TTI is less than 1 ms.