Patent application number | Description | Published |
20130114523 | USER EQUIPMENT (UE)-SPECIFIC ASSIGNMENT OF DEMODULATION REFERENCE SIGNAL (DMRS) SEQUENCES TO SUPPORT UPLINK (UL) COORDINATED MULTIPOINT (CoMP) - Technology for user equipment (UE)-specific assigning of demodulation reference signal (DM-RS) sequences to support uplink (UL) coordinated multipoint (CoMP) is disclosed. One method can include a DM-RS sequence assignment device sorting the plurality of UE into a list according to a number of reception point (RP) links for each UE in a CoMP set, and assigning a base DM-RS sequence and a cyclic shift (CS) to a top-ranked UE from the list. The top-ranked UE can have a highest number of RP links. The DM-RS sequence assignment device can repeatedly assign a different CS of the base DM-RS sequence to a plurality of unassigned UE in a same cell as the top-ranked UE, and repeatedly assign the different CS of the base DM-RS sequence to a plurality of unassigned UE in a cooperatively served cell of the top-ranked UE. | 05-09-2013 |
20130155914 | RESOURCE ALLOCATION FOR PUCCH FORMAT 1B WITH CHANNEL SELECTION IN AN LTE-A TDD SYSTEM - Embodiments of methods and apparatus for resource allocation for physical uplink control channels are described herein. Other embodiments may be described and claimed. | 06-20-2013 |
20130156075 | HYBRID CODEBOOK DESIGN FOR WIRELESS SYSTEMS - Briefly, in accordance with one or more embodiments, a codebook for wireless transmissions may be generated by dividing a codebook into a fixed set of codewords and an adaptive set of codewords. The adaptive set of codewords may be scaled to cluster together and then rotated to be centered or nearly centered about a target. The adaptive set of codewords may then be merged with the fixed set of codewords to provide a hybrid codebook. A codeword from the hybrid codebook may be selected for precoding a transmission to provide a minimum, or nearly minimum, quantization error. | 06-20-2013 |
20130194982 | INTERFERENCE MANAGEMENT FOR DYNAMIC UPLINK AND DOWNLINK CONFIGURATION - An apparatus and method for managing interference to facilitate allocation of a dynamic uplink and downlink configuration are disclosed herein. Determining whether a first cell causes interference less than a pre-determined threshold level to one or more neighboring cells or whether flexible subframes of radio frames associated with the one or more neighboring cells operate as downlink subframes. In response to the determining condition being met, allocating a first flexible subframe of a first radio frame associated with the first cell to operate as a downlink subframe at normal transmit power level. In response to the determining condition not being met, allocating the first flexible subframe of the first radio frame associated with the first cell as one of a downlink subframe operating in a reduced transmit power level or as an uplink subframe. | 08-01-2013 |
20130195025 | UPLINK COORDINATED MULTI-POINT - Disclosed embodiments may include an apparatus having one or more processors coupled to one or more computer-readable storage media. The one or more processors may be configured to transmit and/or receive channel state information reference signal (CSI-RS) resource configuration information, demodulation reference signals (DM-RS), uplink sounding reference signals (SRS), and power control parameters to support uplink coordinated multi-point (CoMP) operations. Other embodiments may be disclosed. | 08-01-2013 |
20130272132 | SUPPORTED, SELF-OPTIMIZING WIRELESS NETWORKS, OPTIMIZED WITH RESPECT TO ENERGY, MOBILITY, AND CAPACITY - Technology is discussed for self-optimization approaches within wireless networks to optimize networks for energy efficiency, load capacity, and/or mobility, together with new, supporting channel state measurements and handover techniques. New, Channel State Information-Reference Signals (CSI-RSs) for yet-to-be-configured Cell-IDentifications (Cell-IDs) can be used to determine whether adjacent transmission cells can provide coverage for transmission cells that can be switched off for energy efficiency during formation of a Single Frequency Network (SFN). New approaches are also discussed to facilitate mobility within such a network. The new CSI-RSs and mobility approaches can also be used to split up such a SFN when changing load demands so require. Additionally, such new approaches can be used to create a SFN with a common Cell-ID where high mobility is required, such as near a roadway, and to break it up where high capacity is required, such as during a period of traffic congestion. | 10-17-2013 |
20130272170 | ADAPTIVE UL-DL TDD CONFIGURATIONS IN A HETEROGNEOUS NETWORK - Technology for adapting uplink-downlink (UL-DL) time-division duplexing (TDD) subframe configurations in a heterogeneous network (HetNet) is disclosed. One method can include a reference enhanced Node B (eNB) determining a preferred adaptive UL-DL configuration. The eNB can receive node configuration information for at least one neighboring node. The eNB can reconfigure an adaptive UL-DL configuration for at least one of the reference eNB and the at least one neighboring node based on the node configuration information and sounding reference signal (SRS) subframe scheduling of the reference eNB and the at least one neighboring eNB. | 10-17-2013 |
20130286868 | QoE-AWARE RADIO ACCESS NETWORK ARCHITECTURE FOR HTTP-BASED VIDEO STREAMING - Technology for adapting a video stream using a quality of experience (QoE) report is disclosed. One method can include a QoE-aware system in a node of a radio access network (RAN) receiving a QoE report with at least one QoE metric from a wireless device. The QoE-aware system can extract the at least one QoE metric in a function layer from a QoE reporting layer. The function layer can be a layer other than the QoE reporting layer. The QoE-aware system can modify a layer function in the function layer to improve the QoE metric. | 10-31-2013 |
20130301490 | SCHEDULING AND HYBRID AUTOMATIC REPEAT REQUEST (HARQ) TIMING INDICATION FOR AN UPLINK-DOWNLINK (UL-DL) RECONFIGURATION - Technology for reconfiguring an uplink-downlink (UL-DL) time-division duplexing (TDD) configuration timing is disclosed. In an example, a user equipment (UE) for reconfiguring an uplink-downlink (UL-DL) time-division duplexing (TDD) configuration timing can have computer circuitry configured to: Decode a physical downlink control channel (PDCCH) for downlink control information (DCI) including a timing indication field (TIF); and reconfigure a channel timing for a semi-static UL-DL TDD configuration using the TIF. The channel timing can include a physical downlink shared channel (PDSCH) hybrid automatic repeat request (HARQ) timing, a physical uplink shared channel (PUSCH) scheduling timing, or a PUSCH HARQ timing. | 11-14-2013 |
20130303167 | COORDINATED DYNAMIC POINT SELECTION (DPS) WITH CELL RANGE EXPANSION IN A COORDINATED MULTIPOINT (CoMP) SYSTEM - Technology for mitigating edge effect interference in a Coordinated MultiPoint (CoMP) system having multiple CoMP clusters is disclosed. In an example, a method can include a macro node transmitting a cell range expansion request to user equipments (UEs) within a cell. A CoMP cluster for nodes within the cell that includes UEs operating with the cell range expansion can be generated. Blanked resources between a plurality of macro nodes for the CoMP clusters in the CoMP system can be coordinated using a muting preference including a blanked resource. | 11-14-2013 |
20130322357 | HYBRID AUTOMATIC REPEAT REQUEST (HARQ) MAPPING FOR CARRIER AGGREGATION (CA) - Technology to support Hybrid Automatic Retransmission re-Quest (HARQ) for Carrier Aggregation (CA) is disclosed. For example, a device, at a processor residing on a User Equipment (UE), includes a sizing module and a window module. The sizing module can be configured to determine a first size of a first bundling window for a first Component Carrier (CC) and a second size of a second bundling window for a second CC. The window module can be configured to: generate a first virtual window comprising a selected number of DownLink (DL) sub-frames in the first bundling window that are added to DL sub-frames in the second bundling window; and generate a second virtual window comprising remaining DL sub-frames from the first bundling window that are not added to the first virtual window. The selected number of DL sub-frames can be proportional to a difference between the first size and the second size. | 12-05-2013 |
20130322358 | HYBRID AUTOMATIC REPEAT REQUEST (HARQ) MAPPING FOR CARRIER AGGREGATION (CA) - Technology to support mapping for Hybrid Automatic Retransmission re-Quest (HARQ) for Carrier Aggregation (CA) is disclosed. One method can include a user equipment (UE) identifying, within a radio frame, a type 2 DownLink (DL) sub-frame within a virtual bundling window associated with a Secondary Component Carrier (SCC). The type 2 DL sub-frame can be virtually moved from a Primary Component Carrier (PCC) for HARQ-ACKnowledge (HARQ-ACK) multiplexing of the virtual bundling window. The UE can extract a Component Carrier Element (CCE) number for a first CCE used by a Physical Downlink Control CHannel (PDCCH) transmission corresponding to the type 2 DL sub-frame. The UE can determine a Physical Uplink Control CHannel (PUCCH) resource for carrying a HARQ-ACK multiplexing message based on the CCE number when a PCC window size of the PCC is greater than an SCC window size of the SCC. | 12-05-2013 |
20130326551 | WIRELESS MULTIMEDIA QUALITY OF EXPERIENCE REPORTING - Embodiments of techniques and systems for quality of experience (QoE) reporting in wireless systems are described. In some embodiments, user equipment may receive a first value of a first quality of experience (QoE) metric computed during playout of a multimedia asset at the user equipment. The first value may be received at a first layer in a protocol stack of the user equipment from a second layer above the first layer in the protocol stack. The user equipment may provide a first layer report, including data representative of the first value, for wireless transmission from the user equipment to an eNB. Other embodiments may be described and claimed. | 12-05-2013 |
20140003452 | MULTIPLEXING OF CHANNEL STATE INFORMATION AND HYBRID AUTOMATIC REPEAT REQUEST - ACKNOWLEDGEMENT INFORMATION | 01-02-2014 |
20140022988 | USER EQUIPMENT AND METHOD FOR ANTENNA PORT QUASI CO-LOCATION SIGNALING IN COORDINATED MULTI-POINT OPERATIONS - User Equipment (UE) and methods for antenna port quasi co-location signaling in coordinated multi-point (CoMP) operations are generally described herein. In some embodiments, one or more downlink channels are at least partially offloaded from a serving Evolved Node-B (eNB) to one or more neighbor eNBs. The UE may receive signaling from the serving eNB to indicate a reference signal of a neighbor eNB to use for estimation of one or more large-scale physical-layer parameters associated with the one or more downlink channels provided by one of more of the neighbor eNB. The UE may estimate the one or more large-scale physical-layer parameters based on receipt of the indicated reference signal from the neighbor and serving eNBs. The UE may also apply the estimated one or more large-scale physical-layer parameters for processing the one or more downlink channels from the neighbor and serving eNBs. | 01-23-2014 |
20140092824 | HYBRID AUTOMATIC REPEAT REQUEST (HARQ) MAPPING FOR CARRIER AGGREGATION (CA) - Technology for conditional hybrid automatic retransmission re-quest (HARQ) mapping for carrier aggregation (CA) is disclosed. One method can include a user equipment (UE) determining when a subframe for physical downlink shared channel (PDSCH) transmission is configured for downlink semi-persistent scheduling (SPS). The subframe configured for downlink SPS can generate a first condition. The UE can generate HARQ-ACK states for the first condition for a HARQ bundling window with discontinuous transmission (DTX) padding for a secondary HARQ bundling window size for a secondary cell (SCell) and a primary HARQ bundling window size for a primary cell (PCell). The UE can generate HARQ-ACK states for a second condition for the HARQ bundling window with DTX padding including a DTX padding exception. The second condition can include conditions not covered by the first condition. The DTC padding exception can generate a set of HARQ-ACK states to uniquely define each padded HARQ-ACK state. | 04-03-2014 |
20140092878 | METHOD OF ENHANCED INTERFERENCE MEASUREMENTS FOR CHANNEL STATE INFORMATION (CSI) FEEDBACK - Embodiments of providing enhanced interference measurements for CSI feedback are generally described herein. In some embodiments, CSI-IM resources are used by UE to perform interference measurements. The serving cell determines a hopping pattern for varying a position of the determined CSI-IM resources in subframes transmitted to the served UE. The determined CSI-IM resources and the determined CSI-IM resources hopping pattern are transmitted to the served UE. The serving node transmits a zero-power (ZP) CSI-RS. The serving node receives an interference measurement from the served UE based on CSI-IM and ZP CSI-RS provided to the served UE from the serving cell. Collisions between the CSI-IM of the serving node and CSI-IM of the non-serving nodes are minimized by the determined CSI-IM resources hopping pattern. | 04-03-2014 |
20140293988 | TIMING SYNCHRONIZATION IN DISCOVERY SIGNALS - Embodiments described herein relate generally to a device that is to transmit signals using a control channel. The device may be, for example, a user equipment or low-powered radio access node. Before transmitting the signal, the transmitting device may modify symbols associated with the signal. For example, the transmitting device may generate a scrambling sequence and modulate the symbols associated with the signal with the scrambling sequence. In another example, the transmitting device may apply a shifting pattern or hopping pattern to the sequence indices associated with sequences for symbols to be included in the signal. The applied pattern may change one or more sequence indices associated with one or more symbol indices associated with the signal. Other embodiments may be described and claimed. | 10-02-2014 |
20140321360 | DEVICE-TO-DEVICE (D2D) PREAMBLE DESIGN - This application discusses, among other things, methods and apparatus for providing more efficient ways to enable D2D discovery and D2D communication simultaneously. In an example, a method can include assembling device-to device (D2D) discovery data at a wireless device, assembling D2D communication data at the wireless device, assembling a D2D preamble including the discovery data and the communication data, and transmitting the D2D preamble using a wireless transmitter of the wireless device. | 10-30-2014 |
20150009875 | ENERGY-EFFICIENT DEVICE DISCOVERY TECHNIQUES - Techniques for energy-efficient device discovery are described. In one embodiment, for example, user equipment may comprise logic, at least a portion of which is in hardware, the logic to initiate a synchronous operation mode, determine to announce one or more characteristics of a discovery zone of a wireless channel, and send a discovery announcement signal over the wireless channel, the discovery announcement signal describing the one or more characteristics of the discovery zone. Other embodiments are described and claimed. | 01-08-2015 |
20150009949 | SYNCHRONIZING PEER-TO-PEER OPERATION FOR OUTSIDE NETWORK COVERAGE AND PARTIAL NETWORK COVERAGE USING LTE AIR INTERFACE - A user equipment (UE) enables synchronous peer-to-peer communication between devices for out of network coverage and partial network coverage scenarios. The UE performs a synchronization procedure and selects a spectrum resource within an uplink (UL) spectrum for device-to-device (D2D) communication. The UE, representing a synchronization source, generates timing information and synchronization signals for synchronizing a group of wireless communication devices (peer UEs) with the UE in a local synchronization area. The UE transmits, in selected or pre-allocated time or frequency resources, a synchronization signal including the timing information in order to synchronize devices in the local synchronization area. | 01-08-2015 |
20150043398 | Techniques for Device-to-Device Communications - Examples may include techniques to enable user equipment (UE) to establish a device-to-device (D2D) communication link for D2D communications with another UE. In some examples, the D2D communications may occur when either both or at least one UE is within a coverage area for a wireless wide area network (WWAN). In some other examples, both UEs may be outside of the coverage area and may utilize a third UE to provide or relay information for use to establish the D2D communication link. | 02-12-2015 |
20150043439 | COOPERATIVE MULTIPLE BEAM TRANSMISSION - Briefly, in accordance with one or more embodiments, cooperation of multiple beams for transmission is provided by identifying at least two beams among multiple beams that are dominant for a user, determining if there is any beam collision between the at least two beams, and, if there is beam collision between the at least two beams, delaying scheduling on one or more weaker ones of the at least two beams for other users and combining the two or more beams for transmission to the user. Alternatively, cooperation of multiple beams for transmission is provided by, if there is beam collision between the at least two beams, muting one or more weaker ones of the at least two beams and transmitting to the user with a stronger one of the at least two beams. | 02-12-2015 |
20150043448 | SIGNALING FOR PROXIMITY SERVICES AND D2D DISCOVERY IN AN LTE NETWORK - Embodiments of an enhanced node B (eNB), user equipment (UE) and methods of signaling for proximity services and device-to-device (D2D) discovery in an LTE network are generally described herein. In some embodiments, the eNB may transmit signaling to indicate D2D discovery zone configuration to proximity service (ProSe) enabled UEs. The signaling may indicate time and frequency resources and a periodicity of a discovery zone and may indicate operational parameters for the discovery zone. The resources of the D2D discovery zone may be allocated for D2D discovery signal transmission by the ProSe-enabled UEs. | 02-12-2015 |
20150045016 | USER EQUIPMENT AND METHOD FOR PACKET BASED DEVICE-TO-DEVICE (D2D) DISCOVERY IN AN LTE NETWORK - Embodiments of a User Equipment (UE) and methods for packet based device-to-device (D2D) discovery in an LTE network are generally described herein. In some embodiments, UE may be enabled for proximity services and may be configured to receive signaling from an enhanced node B (eNB) indicating resources allocated for D2D discovery. The UE may configure a discovery packet in accordance with a predetermined configuration to have at least a discovery payload and a cyclic-redundancy check (CRC). The discovery payload may include discovery-related content. The UE may be configured to transmit the discovery packet on at least some of the indicated resources for receipt by a receiving UE. In some embodiments, a demodulation reference signal (DMRS) may be selected to indicate a payload size and/or MCS of the discovery packet's payload. | 02-12-2015 |
20150071235 | UPLINK COORDINATED MULTI-POINT - Disclosed embodiments may include an apparatus having one or more processors coupled to one or more computer-readable storage media. The one or more processors may be configured to transmit and/or receive channel state information reference signal (CSI-RS) resource configuration information, demodulation reference signals (DM-RS), uplink sounding reference signals (SRS), and power control parameters to support uplink coordinated multi-point (CoMP) operations. Other embodiments may be disclosed. | 03-12-2015 |
20150085764 | SYSTEMS, METHODS, AND DEVICES FOR DEVICE-TO-DEVICE DISCOVERY - A user equipment (UE) includes a reference signal component, a guard period component, and a transmission component. The reference signal component is configured to randomly select a sequence for a reference signal for transmission in an open device-to-device discovery packet. The guard period component is configured to determine a first symbol signal for transmission during a first symbol of the device-to-device discovery packet. The first symbol comprises a partially punctured symbol. The transmission component is configured to transmit the device-to-device discovery packet. The device-to-device discovery packet includes the first symbol having the partially punctured symbol and a reference signal based on the randomly selected sequence. | 03-26-2015 |