Patent application number | Description | Published |
20100291935 | Multi-stream wireless relay - A multi-stream wireless relay is arranged to maintain independent data streams with multiple base stations and thereby provide a relay from those multiple base stations to mobile units having respective communication relationships with those multiple base stations. In an alternative approach, the data streams from the multiple base stations are superposed on each other, wherein harmful inter-cell interference is converted into useful information bearing signals, thereby enabling the scheduling of transmission resources from the multiple base stations for a single mobile unit via the relay. | 11-18-2010 |
20110013563 | COMMUNICATING A FEEDBACK DATA STRUCTURE CONTAINING INFORMATION IDENTIFYING CODING TO BE APPLIED ON WIRELESSLY COMMUNICATED SIGNALING - To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel. | 01-20-2011 |
20110026461 | COMMUNICATING OVER A WIRELESS LINK USING A DATA CONTAINER STRUCTURE THAT HAS PARTITIONS OF DIFFERENT TYPES - A wireless communications node communicates, over a wireless link, data in a data container structure that includes a configurable concatenation of partitions of different types. The partitions of different types in the data container structure carry information according to different wireless access technologies. | 02-03-2011 |
20110026483 | PERMUTATION ZONE FOR COORDINATED MULTI-POINT SYSTEMS - The present subject matter provides a method for implementation in a wireless communication system that includes a plurality of base stations for providing wireless connectivity to at least a first mobile unit. A first signal processed using a first permutation mapping is communicated between the first mobile unit and a first base station. A second signal processed using the first permutation mapping is communicated between the first mobile unit and a second base station different than the first base station. The first and second signals are processed based on the first permutation mapping to extract data therefrom. | 02-03-2011 |
20110038308 | FORMING SPATIAL BEAMS WITHIN A CELL SEGMENT - To perform wireless communications in a wireless network, at least two spatial beams are formed within a cell segment, where the at least two spatial beams are associated with different power levels. The at least two spatial beams are swept across the cell segment according to a sweep pattern. In some implementations, multiple antenna assemblies can be used, where each antenna assembly has plural antenna elements. A lower one of the antenna assemblies can be used to form high and lower power beams, and an upper one of the antenna assemblies can be used to communicate backhaul information, for example. | 02-17-2011 |
20110211537 | Methods for in-band overlay of small cells in macro cells - Provided is a method that includes determining a binary sequence based on a number of symbols in a frame associated with a macro cell. The method further includes performing an autocorrelation calculation on the binary sequence. The method further includes determining a time offset based on minimum values of the autocorrelation calculation. The method further includes broadcasting a control signal including the time offset to a plurality of small cells. The method further includes receiving the control signal including the time offset associated with the frame associated with the macro cell. The method further includes transmitting a frame associated with a small cell synchronized with a frame associated with the macro cell and offset in time by the time offset. | 09-01-2011 |
20120003987 | Method And Apparatus For Optimizing Network Throughput - A method is provided a wireless system for optimizing network throughput in a wireless communication system. More particularly, the methodology of the invention evaluates the both individual user data throughput as well as the data throughput of a larger user population, in determining the base station to which a user should attach when entering the wireless system. In an alternate embodiment, the invention methodology evaluates such individual user data throughput and the user population throughput in determining whether or not to handoff a data session for a user from one base station to the other. | 01-05-2012 |
20120014360 | Method And Apparatus For Interference Management In Heterogenous Networks - A method is provided a wireless system for providing small “guard” cells in a heterogeneous network at locations proximate to privately-maintained HeNB (or femto) cells in the heterogeneous network. More particularly, the methodology of the invention addresses the problem of a mobile user in a heterogeneous network located nearby to a privately maintained HeNB cell in the heterogeneous network, and the inherent interference created for the HeNB cell by the necessity of the mobile user having to transmit and receive communications from a distant public macro eNB. By deploying small public “guard” cells in the macro cell proximate to the private HeNB cells, such a public mobile terminal is enabled to communicate with the public small cell at generally lower power than would have been necessary for communication with the distant macro eNB, with a resulting reduction in interference for the nearby HeNB cell. The FL interference between the macro cell and the HeNBs is also mitigated. | 01-19-2012 |
20130023302 | METHODS AND SYSTEMS FOR CONTROLLING HANDOVERS IN A CO-CHANNEL NETWORK - At least one example embodiment discloses a method of controlling a handover of a user equipment (UE) from a serving base station to a target base station in a heterogeneous network. The method includes determining, by a serving base station, a speed of the UE and a type of the handover, the type of the handover being one of macro cell to macro cell, macro cell to small cell, small cell to macro cell and small cell to small cell, and controlling, by the serving base station, the handover from the serving base station to the target base station based on the speed of the UE and the type of handover. | 01-24-2013 |
20130084862 | Method Of Estimating Mobility Of User Equipment And A Wireless Device - One embodiment of the method of estimating mobility of a user equipment includes obtaining location information of at least one base station that participated in a handover of the user equipment, and estimating a mobility of the user equipment based on the obtained location information. | 04-04-2013 |
20130250764 | ALMOST BLANK SUBFRAME DUTY CYCLE ADAPTATION IN HETEROGENEOUS NETWORKS - A method of setting an almost blank subframe (ABS) duty cycle in a heterogeneous network including a macro cell and one or more small cells, the one or more small cells being underlaid with respect to the macro cell includes obtaining, at a network element, loading information corresponding to each of the macro cell and the one or more small cells, the loading information including, for each of the macro cell and the one or more small cells, an indication of an amount of information buffered at the cell for each user attached to the cell; and determining the ABS duty cycle based on the obtained loading information. | 09-26-2013 |
20130322345 | METHOD AND APPARATUS FOR RESOURCE ALLOCATION FOR DEVICE-TO-DEVICE COMMUNICATION - In one embodiment, the method of allocating network resources by a base station of a network includes allocating at least two blocks of an uplink channel of the network to a direct communication link between a first user equipment (UE) and a second UE. The method further includes determining that a rate of data transfer on the direct communication link is greater than a rate of data transfer for uplink communications between one of (i) the first UE and base station and (ii) the second UE and the base station. The method further includes re-allocating, based on the determining, at least one of the at least two uplink blocks allocated to the direct communication link to at least one of uplink communications by the first UE, the second UE, or other UEs with the base station. | 12-05-2013 |
20130336416 | Communicating a Feedback Data Structure Containing Information Identifying Coding to be Applied on Wirelessly Communicated Signaling - To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel. | 12-19-2013 |
20130343339 | Communicating a Feedback Data Structure Containing Information Identifying Coding to be Applied on Wirelessly Communicated Signaling - To perform wireless communications in a closed loop multiple input, multiple output (MIMO) system, a feedback data structure is communicated over a wireless channel between a first wireless node and a second wireless node, where the feedback data structure contains indicators identifying coding to be applied by the second wireless node on signaling communicated between the second wireless node and the first wireless node, where the information in the feedback data structure is based on wireless channel conditions detected at the first wireless node. The indicators identify different codings to be used for different corresponding bands in the wireless channel. | 12-26-2013 |
20140200022 | METHOD AND APPARATUS FOR PROVIDING ACCURATE MOBILITY STATE ESTIMATION IN HETEROGENEOUS NETWORKS BASED ON COORDINATED RADIAL SPEED ESTIMATION - A method of determining a mobility state of a user equipment (UE) in a wireless communications network, the method comprising: obtaining, at a first device, a first speed measurement, the first speed measurement being a measurement of a radial speed of the UE relative to a first network element; obtaining, at the first device, one or more second speed measurements corresponding, respectively, to one or more second network elements, each of the one or more second speed measurements being a measurement of a radial speed of the UE relative to the corresponding one of the one or more second network elements; generating, at the first device, a comparison result based on the first speed measurement and the one or more second speed measurements; and determining the mobility state of the UE based on the comparison result. | 07-17-2014 |
20140376497 | Including Feedback Information Regarding an Individual Subband of a Wireless Channel - To report feedback information regarding a wireless channel, a mobile station determines whether a predefined condition is satisfied. In response to determining that the predefined condition is satisfied, feedback information regarding an individual one of plural subbands of the wireless channel is included in a first report to be sent to a base station. In response to determining that the predefined condition is not satisfied, aggregate feedback information regarding the plural subbands is included in a second report to be sent to the base station. | 12-25-2014 |
20140376500 | Including Feedback Information Regarding an Individual Subband of a Wireless Channel - To report feedback information regarding a wireless channel, a mobile station determines whether a predefined condition is satisfied. In response to determining that the predefined condition is satisfied, feedback information regarding an individual one of plural subbands of the wireless channel is included in a first report to be sent to a base station. In response to determining that the predefined condition is not satisfied, aggregate feedback information regarding the plural subbands is included in a second report to be sent to the base station. | 12-25-2014 |
20140376501 | Including Feedback Information Regarding an Individual Subband of a Wireless Channel - To report feedback information regarding a wireless channel, a mobile station determines whether a predefined condition is satisfied. In response to determining that the predefined condition is satisfied, feedback information regarding an individual one of plural subbands of the wireless channel is included in a first report to be sent to a base station. In response to determining that the predefined condition is not satisfied, aggregate feedback information regarding the plural subbands is included in a second report to be sent to the base station. | 12-25-2014 |
20150078335 | USER EQUIPMENT AND METHODS FOR FAST HANDOVER FAILURE RECOVERY IN 3GPP LTE NETWORK - Embodiments of User Equipment (UE) and methods for fast handover failure recovery in a 3GPP LTE network are generally described herein. In some embodiments, the UE may initiate handover (HO) failure recovery by transmission of a random-access channel (RACH) 2 message when both a radio-link failure (RLF) timer and a time-to trigger (TTT) timer are concurrently running. The RACH 2 message may be a message transmitted on a random-access channel for radio-resource control (RRC) connection re-establishment. The RLF timer may be activated as part of a radio-link monitoring (RLM) process based on radio-link conditions with a serving cell, and the TTT timer may have been activated as part of a HO process based on a measurement reporting event. | 03-19-2015 |
20150085646 | REDUCTION OF PACKET RETRANSMISSIONS IN DUAL CONNECTIVITY SYSTEMS - Technology for reducing packet transmissions is disclosed. A master evolved node B (MeNB) configured for dual connectivity can receive one or more acknowledgements (ACKs) from a user equipment (UE) indicating packets that were successfully received at the UE from a secondary evolved node B (SeNB). The MeNB can receive, from the SeNB, packet delivery information for the SeNB. The MeNB can receive an indication from the SeNB of an air-interface connection loss between the SeNB and the UE. The MeNB can identify remaining packets that were not sent from the SeNB to the UE based, in part, on the ACKs received from the UE and the packet delivery information received from the SeNB, wherein the remaining packets are not sent to the UE due to the connection loss between the SeNB and the UE. The MeNB can send the remaining packets from the MeNB to the UE. | 03-26-2015 |
20150085667 | MITIGATION OF TRAFFIC CONGESTION IN DUAL CONNECTIVITY SYSTEMS - Technology for mitigating traffic congestion is disclosed. A master evolved node B (MeNB) can identify service data unit (SDU) packets that are dropped in a retransmission buffer of a packet data convergence protocol (PDCP) layer of the MeNB. The MeNB can create a list of packet data unit (PDU) packets that are dropped at the PDCP layer of the MeNB, wherein the PDU packets that are dropped are associated with the SDU packets. The MeNB can send the list of dropped PDU packets, from the PDCP layer of the MeNB to the PDCP layer of a user equipment (UE), to enable the UE to distinguish between delayed PDU packets and the dropped PDU packets. | 03-26-2015 |
20150085800 | BEARER SPLIT RATIOS FOR DUAL CONNECTIVITY SYSTEMS - Technology for communicating data to a user equipment (UE) is disclosed. Effective data rates may be identified, at a master evolved node B (MeNB), for the UE with respect to the MeNB and a secondary evolved node B (SeNB). A downlink split ratio for bearers of the MeNB and the SeNB to the UE may be determined based in part on the effective data rates for the UE. A first portion of data may be sent from the MeNB to the UE according to the downlink split ratio. A remaining portion of data may be sent from the MeNB to the UE via the SeNB according to the downlink split ratio, wherein the UE supports dual connectivity with the MeNB and the SeNB. | 03-26-2015 |
20150117241 | BUFFER STATUS REPORTING IN A COMMUNICATIONS NETWORK - A technology that is operable to communicate buffer status report (BSR) information to an evolved node B (eNode B) is disclosed. In one embodiment, a user equipment is configured with circuitry configured to buffer data at the UE for communication to at least one of a master eNode B (MeNode B) or a secondary eNode B (SeNode B). BSR information is determined based on the buffered data at the UE. An uplink split configuration of the UE is determined for the MeNode B and the SeNode B. The MeNode B or the SeNode B is identified based on the uplink split configuration to send selected BSR information. The selected BSR information is communicated to the identified MeNode B or the selected SeNode B. | 04-30-2015 |
20150146599 | COORDINATION TECHNIQUES FOR RADIO RESOURCE CONTROL STATE MANAGEMENT IN DUAL-CONNECTIVITY ARCHITECTURES - Coordination techniques for radio resource control state management in dual-connectivity architectures are described. In one embodiment, for example, a master evolved node B (MeNB) may comprise logic, at least a portion of which is in hardware, the logic to send an inactivity notification message to indicate an expiration of an RRC_Inactivity_Timer for a dually-connected user equipment (UE), receive a state decision message in response to the inactivity notification message, and determine whether to transition the dually-connected UE to an RRC_Idle state based on the state decision message. Other embodiments are described and claimed. | 05-28-2015 |