38 results about "EnodeB" patented technology

A method of determining a lower bound on users' speed for efficient SRS resource handling for MU-MIMO transmission includes determining an eNodeB (eNB) or gNodeB (gNB) timing of a subframe; determining a User Equipment (UE) timing of the subframe; calculating a timing advance type corresponding to a Round Trip Time (RTT); calculating a distance to a base station corresponding to the Round Trip Time (RTT); calculating a distance traveled by a UE between two points based on the distance to the base station; calculating a user speed based on the distance traveled by the UE; deriving a lower bound based on the user speed; and filtering users that exceed the lower bound on user speed. The filtered users may be not assigned SRS. The non-filtered users may be assigned SRS and may subsequently be sent MU-MIMO transmissions.

The present application relates to a method for energy-efficient unicast and multicast transmission in a wireless communication system. A method for time-division multiplexing subframes on a serving cell to a user equipment (UE) wherein an eNodeB indicates the communication via a bitmap, wherein the bitmap indicates a set of subframes (501, 502, 503) operating with a legacy Long Term Evolution (LTE) transmission format using a first bit (bit "0") and another set of subframes (504) operating with an Evolved Transmission New Carrier Type (NCT) format using a second bit (bit "1"), including reduced density cell-specific reference signal (CRS) transmission without a physical downlink control channel (PDCCH) control region.

A resource allocation method is applied to a communication system based on massive MIMO. The method includes: A donor eNodeB detects whether a target terminal exists in a donor cell, where a correlation between a wireless air interface channel of the target terminal and a wireless air interface channel of a relay node is greater than a target threshold; and if the target terminal does not exist, the donor eNodeB determines, for the relay node through resource spatial multiplexing, one or more beams used for data backhaul, where the one or more beams are beams formed by a massive antenna array of the donor eNodeB through air interface beamforming.

The invention relates to a method for energy efficient unicast and multicast transmission in a wireless communication system. A method of time division multiplexing subframes on a serving cell to a user equipment (UE) in which an eNodeB indicates communication through a bitmap, wherein the bitmap indication indicates a set of subframes (501, 502, 503) operating with a legacy long term evolution (LTE) transport format using a first bit (bit '0') and another set of subframes (504) operating with an evolved transmission new carrier type (NCT) format using a second bit (bit '1'), including, in the absence of a physical downlink control channel (PDCCH) control region, determining whether or not the first bit (bit '0') indicates a set of subframes (501, 502, 503) operating with the legacy long term evolution (LTE) transport format using the second bit (bit '1'). The invention relates to cell-specific reference signal (CRS) transmission with reduced density.

A method and system for for providing Circuit Switch Fall Back (CSFB) with Radio Access Network (RAN) Information Management (RIM) without network support is presented. In one embodiment, a method includes receiving, by a coordinating server, direct information transfer System Information (SI) messages with RIM Packet Data Unit (PDU) from an eNodeB; sending, by the coordinating server, a RAN-information-request message to a relevant cell, using the routing information in the RIM PDU; collecting and replaying by the cell the SI needed for CFSB to the coordinating server; storing, by the coordinating server, the latest SI information per cell; and replaying, by the coordinating server, the eNodeB with the stored SI information using a MME direct information transfer S1 message.

A method of determining a lower bound on users' speed for efficient SRS resource handling for MU-MIMO transmission includes determining an eNodeB (eNB) or gNodeB (gNB) timing of a subframe; determining a User Equipment (UE) timing of the subframe; calculating a timing advance type corresponding to a Round Trip Time (RTT); calculating a distance to a base station corresponding to the Round Trip Time (RTT); calculating a distance traveled by a UE between two points based on the distance to the base station; calculating a user speed based on the distance traveled by the UE; deriving a lower bound based on the user speed; and filtering users that exceed the lower bound on user speed. The filtered users may be not assigned SRS. The non-filtered users may be assigned SRS and may subsequently be sent MU-MIMO transmissions.

The technology described herein improves communication quality and device efficiency by selecting an initial radio technology (e.g., LTE, 5G) for use in an EN-DC communication session between a user equipment (UE) and a communication network. The radio technology may be selected by a network node (e.g., eNodeB) based on a geographic location of the UE within a service area and performance measures calculated for geographic location. In some geographic areas, the 5G leg may perform below a threshold quality measure, while the LTE leg performs well. In these situations, designating the LTE leg as the radio technology for the initial user-data layer may yield a better overall performance (e.g., data throughput) than using the 5G technology for the initial user-data layer leg.

Method and apparatus for providing information to a network are disclosed. An eNodeB (eNB) may receive pattern information relating to connection state management behavior of a wireless transmit / receive unit (WTRU). The eNB may receive this information over S1 signaling when a connection is established. The eNB may determine a time factor for connection state management, wherein the time factor may be based on the received information. The determine time factor may be used to adjust connection states of the WTRU.

A wireless transmit / receive unit (WTRU) receives first timing advances and first power control commands from a first eNodeB and second timing advances and second power control commands from a second eNodeB and transmits, to the first eNodeB, a first physical uplink control channel using a first uplink component carrier. The first physical uplink control channel has a first timing adjusted by the first timing advances but not by the second timing advances and a first power level adjusted by the first power control commands but not by the second power control commands. The WTRU transmits a second physical uplink control channel using a second uplink component carrier. The second physical uplink control channel has a second timing adjusted by the second timing advances but not by the first timing advances and a second power level adjusted by the second power control commands but not by the first power control commands.

Embodiments of the disclosure describe a method (400) for performing a handover from a primary cell (PCell) to one of one or more SCells. The method includes configuring (402), for a User Equipment (UE), an A1 event for the one or more Secondary Cells (SCells) associated with the UE and an eNodeB (eNB) or a gNodeB (gNB) in a network. The method includes receiving (404), from the UE, an A1 measurement report for each of the one or more SCells based on the configured A1 event. The method further includes performing (406) the handover from the PCell to the one or more SCells based on the received A1 measurement report.

The invention relates to the technical field of mobile communication network optimization, in particular to a base station position intelligent prediction method and device based on an improved DBSCAN algorithm, and the method comprises the steps: carrying out the rasterization of collected original data and stock base station data, obtaining an effective Enodeb list, carrying out the classification according to an operator and a network type, and obtaining a plurality of effective Enodeb sub-lists; positioning a raster data index of each Enodeb by using a binary search algorithm, extracting latitude and longitude coordinates of all grids under the same Enodeb, and constructing a clustering data list; performing clustering analysis on the raster data in each Enodeb to generate a predicted base station position data table; wherein during clustering analysis, clustering parameters are dynamically adjusted based on the number of cell identifiers under each Enodeb; and quantitatively predicting the matching degree of the base station and the actual base station, screening out the optimal parameter of the improved DBSCAN algorithm, and predicting the position of the base station based on the optimal parameter. Therefore, different base station density scenes are adapted, and the base station position prediction precision and efficiency are improved.

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 technology includes a method, computer medium, and system for testing audio quality of a transport segment between two core networks. A first virtual test agent (VTA) selects a Mobility Management Engine (MME) corresponding to an eNodeB served by a first core network for routing a second call, through a Serving Gateway (SGW) assigned by the MME for audio communication with a tester terminus. The second call is made from the first VTA to a second VTA at a second core network over a transport-segment-under-test that connects the first and second core networks, So that a tester can evaluate audio quality over the transport-segment-under-test. The first VTA makes a first call to a tester appliance, makes a second call, over the transport-segment-under-test, to the second VTA implementing audio evaluation, by signaling the MME, and bridges the first and second calls by relaying audio during a test of subjective audio quality.

Provided are a method for performing wireless communication and an apparatus supporting same. The method may comprise the steps of: acquiring, by a first device, a time division duplex (TDD) configuration; transmitting, by the first device, a random access preamble; and receiving, by the first device, a random access response related to the random access preamble in a random access response window. For example, the random access response window may start at the earliest downlink time resource configured by the TDD configuration after a value X plus a user equipment-eNodeB (UE-eNB) round trip time (RTT) from the last time resource of the transmission of the random access preamble. For example, the value X may be determined on the basis of a preamble format related to the transmission of the random access preamble and the number of repetitions related to the transmission of the random access preamble.

A ground station processes downlink signals received from respective satellites. The ground station has a plurality of signal conditioning devices each receiving a respective one of the downlink signals and providing a conditioned downlink signal. A plurality of Doppler and / or Delay compensator devices each receive a respective conditioned downlink signal from a respective one of the plurality of signal conditioning devices. The compensator devices conduct Doppler and / or Delay compensation on the received conditioned downlink signal, and provide a compensated downlink signal output. A selector or diversity combiner receives the compensated downlink signal from each of the plurality of Doppler and / or Delay compensators. The selector or diversity combiner selects one of the received compensated downlink signals based on received signal strength of each received compensated downlink signal to provide a selected downlink signal, or diversity combines all of the received compensated downlink signals to provide a diversity combined signal. The selector or diversity combiner provides the selected downlink signal or the diversity combined signal to an eNodeB.

Methods, systems and computer readable media are disclosed for operating a wireless network system. In one embodiment a method includes defining a plurality of Information Elements (IEs) relating to a retransmit timer value and a retransmit count; including, by the Mobility Management Entity (MME), the plurality of IEs in a first message sent to an eNodeB with a timer value and a retransmission count for the message; processing, by the eNodeB, the message, buffering the request, and starting a corresponding timer; and sending, by the eNodeB when a response from a User Equipment (UE) is not received before the timer expires, a stop retry message indication to the MME.

A method is disclosed for providing distributed paging optimization, the method comprising: connecting a group of radio access network nodes, each supporting multiple small cells, to a gateway which acts as a virtual core network to the multiple small cells and acts as an eNodeB virtualizing the multiple small cells toward a core network; sending, by the gateway, in response to a paging request from the core network, a plurality of recommended cell IDs or base stations using a private information element (IE) in a paging request; and sending paging requests in response to the paging request from the core network to only the plurality of cell IDs or base stations recommended by the gateway.

The invention relates to the technical field of network management, in particular to an ENodeB batch out-of-service root cause positioning method and system based on multi-agent cooperative identification, and the method comprises the following steps: a problem rewriting agent collects sentence pattern information of an operator query performance intention; carrying out keyword extraction and intention recognition on the fault description input by a user by utilizing a natural language processing technology, and generating a structured query statement containing a fault time range, base station group characteristics and a performance index threshold value; the method has the beneficial effects that the conversion from a natural language to a structured query is realized, and key parameters such as a time range and base station cluster characteristics are extracted by adopting a semantic recombination technology. Then performing intelligent delimitation, executing'scene classification 'and'path planning', and dynamically generating a detection path tree; and finally, in a data fusion stage, an API tool set is called through a network management system, cross-system data alignment is realized, and a root cause of a fault is inferred. The situation that tasks of complex scenes are completed through a large model is achieved.

Methods, systems, and devices for wireless communications are described. A communication device, such as a user equipment (UE) and a base station, for example, an eNodeB (eNB), a next-generation NodeB or a giga-NodeB (either of which may be referred to as a gNB) may support techniques for transformation of analog beamforming codebooks. The communication device may modify an analog beamforming codebook based on a covariance matrix associated with interference and noise in a wireless communication system. For example, the communication device may rotate the analog beamforming codebook based on the estimated covariance matrix, or scale one or more beam weights associated with the analog beamforming codebook based on the estimated covariance matrix, or both. The communication device may thereby perform wireless communication with another communication device in the wireless communication system using the modified analog beamforming codebook.

Methods, systems and computer readable media are disclosed for providing optimized X2 cell reporting. In one embodiment a method includes selecting a subset of virtualized BaseBand Units (vBBU) vnodes to a macro peer that have either reported the X2 peer eNB as a neighbor, or host a cell that the X2 peer eNodeB (eNB) has reported as a neighbor while advertising the neighboring cells towards macro; and advertising cells of this subset of vBBU vnodes as served-cells in X2-Setup Request / Response towards a macro.

The present invention relates to the technical field of communications, and provides a signaling interaction method and system between a 5G terminal and an eNodeB side, the method comprising: an eNodeB side sending a new SIB2 message to all UEs in an NR cell, and notifying all 5G UEs that they support a new CSI reporting mode; each UE prepares to access the eNodeB side based on the new RRC connection request; the method comprises the following steps that: an eNodeB (evolved Node B) side specifies an Apriori CSI (Channel State Information) report mode through a CQI (Configuration Quality Indication)-ReportApriori data field in an RRC (Radio Resource Control) Configuration message; the eNodeB side triggers the 5G UE to carry out non-periodic CSI real-time reporting through DCI format 0 / 4; and each piece of 5G UE reports the new CSI information to the eNodeB side. According to the invention, the downlink throughput of individual UE and even the whole cell can be obviously improved.

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.

This disclosure is directed to allocation of one or more radio bands to a user equipment (UE) for establishing a radio link with a radio node (e.g., eNodeB or gNodeB). The radio bands may include a shared band, such as citizens band radio service (CBRS), a primary licensed band, such as the B66 band, and / or an unlicensed band, such as B46 band. A radio communications system may consider a variety of parameters associated with the distance of a UE from a radio node, signal strength of a signal from the UE, the services requested by the UE, and / or spectral availability of the each of the radio bands to determine which radio band(s) to allocate to the UE. In some cases, the radio band allocated to a UE may be dynamically changed by the radio communications system as conditions related to the UE and / or the mobile network change.

A user equipment (UE) or other network component may be operable to configure channel state information (CSI) feedback in response to receiving a CSI reference signal (CSI-RS) according to a hierarchical precoding scheme that selectively reduces feedback overhead associated with the CSI feedback. The UE may be operable to divide and further subdivide a frequency band (e.g., a wideband or a specific frequency portion) into a precoding hierarchy to generate precoders for transmission to a base station, eNodeB (eNB), or next-generation NodeB (gNB) via the CSI feedback.

An eNB, a UE and a wireless communication method are provided. The eNB in embodiments includes: a circuit that fills an SPS activation / deactivation field in a DCI with a predetermined bit pattern; and a sending unit that sends the DCI to a first UE for the first UE to start or stop periodically sending a signal to a second UE based on the SPS activation / deactivation field, the DCI being in an SPS format formed by employing part or all bits of at least one field of a DCI format 5 as the SPS activation / deactivation field, and information that should be sent in the at least one field being indicated with the help of or by RRC or MAC signaling.

A method is disclosed for providing distributed paging optimization, the method comprising: connecting a group of radio access network nodes, each supporting multiple small cells, to a gateway which acts as a virtual core network to the multiple small cells and acts as an eNodeB virtualizing the multiple small cells toward a core network; sending, by the gateway, in response to a paging request from the core network, a plurality of recommended cell IDs or base stations using a private information element (IE) in a paging request; and sending paging requests in response to the paging request from the core network to only the plurality of cell IDs or base stations recommended by the gateway.

Methods, systems and computer readable media are disclosed for providing inter virtual-eNodeB optimized handover. In one example embodiment, a method includes sending, from a first eNodeB, a handover required message to a first HetNet Gateway (HNG) / virtual eNodeB; matching a target cell in a virtual eNodeB database; receiving, at a second eNodeB, a handover request from a second HNG / virtual eNodeB; sending, by the second eNodeB, a handover request acknowledge message to the second HNG / virtual eNodeB; and performing call context switching using the virtual eNodeB database.

To provide a method for transmitting using an evolved transmission format.SOLUTION: In a method for time multiplexing subframes on a serving cell to user equipment (UE), an eNodeB communicates by bitmap indication using a first bit (bit "0") of a set of subframes (501, 502, 503) operating using a legacy Long Term Evolution (LTE) transmission format and using a second bit (bit "1") of another set of subframes (504) operating using an evolved transmission NCT (New Carrier Type) format including reduced density cell-specific reference signal (CRS) transmission without a physical downlink control channel (PDCCH) control region.SELECTED DRAWING: Figure 5

In a Radio Access Network system including a multi-radio access technology dual connectivity (Multi-RAT DC), a 4G Master eNodeB distributed unit DU (MeNB.DU) and a 5G gNB distributed unit DU (SgNB.DU) of a base station are configured with traffic splitting modules and updated interfaces to coordinate to optimize performance for uplink (UL) and downlink (DL) split bearers.

Systems and methods for dual-connectivity split-bearer packet management are presented. In one embodiment, a dual-connectivity, split-bearer base station, comprises: at least one centralized unit (CU) comprising a CU-CP) and at least one CU-UP; at least one DU coupled to the at least one CU-UP, wherein the at least one DU is coupled to one or more RUs configured as a first cell group to establish a first radio link for communicating with UE within a wireless coverage area; an eNodeB coupled to the at least one CU-UP, wherein the eNodeB comprises one or more RPs configured as a second cell group to establish a second radio link for communicating with UE within the wireless coverage area; and a traffic split controller configured to selectively direct PDCP packets to either the DU or the eNodeB as a function of packet delay times associated with the DU and the eNodeB.