Abstract: If a wireless device does not know how many data contexts can be supported, then the wireless device might attempt to establish more data contexts than are supported. Such attempt would normally be rejected. However, the signalling involved in the attempt to establish another data context and the rejection of that attempt is considered wasteful. Embodiments of the present disclosure allow such waste to be reduced or avoided by signalling to the wireless device when the maximum number of data contexts is reached or when it is about to be reached. Such signalling can occur before any attempt to establish more data contexts than are supported. Thus, wasteful signaling involved with attempting to establish more data contexts can be avoided.

Abstract: A UE, for an HSPA WCDMA system, equipped with a first and a second transmit antenna, and arranged to use one or more sets of pre-coding weights for transmission. The UE is arranged to receive instructions from a NodeB on the set or sets of pre-coding weights to be used, and to transmit a first and a second pilot signal, and to use a first set of pre-coding weights for the first pilot signal and a second set of pre-coding weights for the second pilot signal, where the first set of pre-coding weights is the same as the UE uses for transmitting a first data stream, and to use different spreading codes for the first data stream and for the first pilot signal.

Abstract: Methods and modules for spatial decorrelation and recorrelation are described. A block of data values can be spatially decorrelated in two dimensions efficiently by processing rows of the data values in a particular order such that if the results of spatially decorrelating a first row will be used for column-wise spatial decorrelation of a second row then the data values of the first row are processed in an earlier iteration to that in which the data values of the second row are processed. This allows for highly parallelised processing of the block of data values. Spatial recorrelation can be performed as an inverse process to the spatial decorrelation.

Abstract: Provided herein is a method and apparatus for heterogeneous carrier aggregation, the method including calculating interferences regarding a plurality of interference paths between an adjacent cell and serving cell; determining weighted values for the plurality of interference paths in the serving cell; calculating an accumulated value (accumulated margin or accumulated interference) regarding the plurality of interference paths based on the weighted values in the serving cell; determining a component carrier to be used in the carrier aggregation based on the accumulated value calculated in the serving cell; and performing the carrier aggregation based on the component carrier determined.

Abstract: Base stations can exchange information indicating that the base stations are transmitting (or going to transmit) downlink signals over one or more unlicensed frequency bands. For example, a first indication that a first base station is reserving a first subset of a plurality of unlicensed frequency bands for downlink transmission can be transmitted over one or more interfaces between the first base station and one or more second base stations. The one or more second base stations can then refrain from transmitting potentially interfering downlink transmissions over the first subset of the plurality of unlicensed frequency bands. Information identifying the first subset may be stored by the one or more second base stations.

Abstract: A method and apparatus for radio resource control (RRC) state transitions of a user equipment (UE) are provided. For the RRC state transitions of the UE, for example, a reconfiguration message is received at the UE while the UE is in a cell dedicated channel (CELL_DCH) state of the RRC states. The reconfiguration message is configured to transition the UE from the CELL_DCH state to a non-dedicated channel state of RRC states. A plurality of acknowledgement procedures is sent on an uplink to the network, in response to the received reconfiguration message causing the UE to transition from the CELL_DCH state to the non-dedicated channel state.

Abstract: A V2X communication device includes a communication unit, an occupancy time calculation unit, a power control unit. The communication unit supports communication between a vehicle and an object. The occupancy time calculation unit calculates at least one of a radio wave occupancy time, in which data is transmitted/received through the communication unit in each communication period, and a radio wave non-occupancy time, in which the data is not transmitted/received in each communication period. The power determination unit determines whether to adjust the data transmission power based on at least one of the radio wave occupancy time and the radio wave non-occupancy time, which are calculated by the occupancy time calculation unit. The power control unit adjusts and controls the data transmission power according to the determination from the power determination unit.

Abstract: Methods and devices relating to Discontinuous reception (DRX) mode are disclosed. In some embodiments a radio network controller detects that a User Equipment operating in a Discontinuous reception mode has performed an uplink transmission on a Random Access Channel, RACH and sends a signal to a Node B that received the uplink transmission indicating to the Node B that the UE has performed said uplink transmission and is continuously monitoring downlink transmissions, where the signal includes information identifying the UE.

Abstract: Channel state feedback is provided from a UE to a base station as a first, detailed or a second, less detailed type of channel state feedback information. Initially it is determined whether the UE has received an uplink grant from the base station or not. If the UE has received an uplink grant, a first type of channel state feedback information is transmitted to the base station on the granted resource. If, however, the UE has not received an uplink grant, a second type of channel state feedback information is transmitted to the base station. Different types of channel state feedback information enables a UE and an associated base station to use available resources more efficiently, when requesting for and delivering channel state feedback information.

Abstract: In a method for training an artificial neural network based algorithm designed to monitor a first device, a processor receives a first data. A processor determines a first service action recommendation for a first device using the received first data and an artificial neural network (ANN) algorithm. A processor causes a second device to provide haptic feedback using the received first data. A processor receives a second service action recommendation for the first device based on the haptic feedback. A processor adjusts at least one parameter of the ANN algorithm such that the ANN algorithm determines a third service action recommendation for the first device using the received first data, wherein the third service action recommendation is equivalent to the second service action recommendation.

Abstract: The network element collects, within a time window, charging information of a plurality of user equipments belonging to a same group, aggregates the charging information to obtain a charging aggregation result, and sends the charging aggregation result to a corresponding device in said system. The charging system receives a plurality of pieces of aggregated charging information and time windows sent by a network element in the system, wherein each piece of charging information respectively corresponds to one of the time windows, and aggregates the plurality of pieces of aggregated charging information based on the time windows and the group(s) and/or sub-group(s) to which the user equipments belong, to generate charging data record(s), wherein the time windows and the user equipments correspond to the plurality of pieces of aggregated charging information.

Abstract: In a radio communication system a first radio station performs communication by the use of a first radio signal. A second radio station receives a second radio signal which is indistinguishable from the first radio signal. A third radio station is in a radio communication area of the first radio station and a radio communication area of the second radio station. A communication format conversion unit generates a third radio signal by converting a communication format of the second radio signal to a communication format which is distinguishable from the first radio signal, and communicates with the third radio station by the use of the third radio signal.

Abstract: Provided are a delivery device, a communication system, a load balancing method, and a load balancing program that enable processing loads for maintaining connections with terminals to be balanced over time, and enable the real time property of message delivery to be maintained for an event notification service.

Abstract: A network device stores a mapping configuration to associate client type profiles with particular delivery profiles for media content and receives, from a client device, a request for a link to a content selection. The request includes a content identifier and parameters for the client device. The network device constructs, based on the parameters for the client device, a particular client type profile and maps the particular client type profile to one of the particular delivery profiles in the mapping configuration. The network device constructs a uniform resource locator (URL), based on the one of the particular delivery profiles and the content identifier, that provides the link to the content selection with formatting that is suitable for the particular client type profile and sends the URL to the client device.

Abstract: A system, apparatus and method for selecting one or more synchronization stations, or masters, in a peer-to-peer communication environment. Synchronization (or sync) stations broadcast periodic synchronization frames to advertise future availability windows, during which devices rendezvous for discovery and communication. Devices that can act as sync stations advertise preference values, which indicate their preference or suitability for the role. All devices execute the same algorithm to sort the preference values and identify a root sync station and any number of branch sync stations; leaf devices synchronize with the root or a branch sync station. This passive synchronization scheme allows individual devices to conserve power, because they need not actively discover other devices and services, and can power off their radios for periods of time without sacrificing discoverability.

Abstract: A method allocating transmission resources in an OFDM wireless telecommunication system configured to communicate data using plural OFDM sub-carriers. The method allocates transmission resources provided by a first group of the plural OFDM sub-carriers within a first frequency band to terminals of first type; allocates transmission resources provided by a second group of the plural OFDM sub-carriers within a second frequency band to terminals of second type, the second group being smaller than the first group and the second frequency band selected from within the first frequency band; transmits control information including resource allocation information for terminals of the first type over a first bandwidth corresponding to the combined first and second groups of OFDM sub-carriers; and then transmits control information including resource allocation information for terminals of the second type over a second bandwidth corresponding to the second group of OFDM sub-carriers.

Abstract: The present application provides an interference estimation circuit which includes a signal generator, a first symbol extractor and a first mixer. The signal generator generates an orthogonal signal orthogonal to partial symbols of a plurality of pilot signals. The first symbol extractor extracts partial symbols of a first decoded signal decoded from a received signal wherein the first decoded signal contains one of the plurality of pilot signals, and includes an input node for receiving the first decoded signal and an output node for outputting a first extracted signal. The first extracted signal is substantially orthogonal to the orthogonal signal. The first mixer is coupled to the signal generator for receiving the orthogonal signal and to the first symbol extractor for receiving the first extracted signal, and outputs a first mixed signal of the orthogonal signal and the first extracted signal for interference estimation.

Abstract: A device for compressing vertex data in three-dimensional (3D) image data includes a codebook design module and a codeword search module. The codebook design module is configured for: grouping residual vectors of vertices in 3D image data for codebook design; generating, for each group of residual vectors, a sub-codebook formed by a specified number of codewords; and sending the generated sub-codebook corresponding to a group of residual vectors to the codeword search module. The codeword search module is configured for: receiving a sub-codebook sent by the codebook design module; searching for a codeword of optimal match of a to-be-compressed residual vector of a vertex in 3D image data to be compressed; and taking an index of the codeword of optimal match and an index of a sub-codebook where the codeword of optimal match is located as compressed data of the vertex. A method for compressing vertex data in 3D image data is further disclosed.

Abstract: A resource allocation message includes a resource allocation field. The resource allocation field includes a first field that includes either a first sub-field or a first sub-field and a second sub-field with the first sub-field configured to hold a first value that indicates two or more logical indices and the second sub-field configured to hold a third value. Each of the logical indices is associated with a sub-band pair of resource units. The sub-band pair of resource units includes either a first sub-band resource unit or a first sub-band resource unit and a second sub-band resource unit. The resource allocation field also includes a second field configured to hold a second value that indicates, either alone or in combination with the third value, a first sub-band resource unit or a second sub-band resource unit for each of the sub-band pair of resource units indicated by the first field.

Abstract: Provided is a wireless communication apparatus including at least one two-way antenna for power recovery, a wireless block processing a wireless signal which the two-way antenna for power recovery transmits and receives, a power recovery block recovering electric power from a received signal of the two-way antenna for power recovery, and a connection switching part connecting the two-way antenna for power recovery to and switching the connection between the wireless block and the power recovery block. A duty ratio at which the connection switching part connects the two-way antenna for power recovery to the wireless block and the power recovery block is set so that the wireless block attains a desired communication speed.

Abstract: Various aspects disclosed are directed to improvements to channel estimation through more efficient cancelation of neighboring common reference signals (CRS). Cancelation of CRS from other cells allows the user equipment (UE) a better opportunity for accurately detecting the reference signal of the current cell. Alternative aspects have a recursive element that uses previous estimates as the basis for the current channel estimate. The various aspects of the present disclosure generally have two alternative embodiments: (1) initializing the channel estimation for all cells with a previous channel estimate and cancellation of reference signals of non-target cells to accurately update channel estimate of the target cell; and (2) initializing the channel estimate for all cells with a previous channel estimate and cancelation of reference signals of all cells to accurately estimate residual channel estimate of the target cell and update its channel estimate.

Abstract: The disclosure relates to handover optimization in a voice communication session or other real-time multimedia session. For example, a wireless device associated with a parent user may detect a condition triggering a handover during a current voice communication session between the parent user and a target user, wherein the handover has a type associated with a switching delay. The wireless device may maintain statistics relating to an average mutual silence duration after talk spurts from the parent user and the target user based on one or more past voice communication sessions in which at least the parent user participated and trigger the handover when a next talk spurt from either the parent user or the target user ends where the average mutual silence duration exceeds the switching delay associated with the handover type.

Abstract: Embodiments relate to out-of-synchronization detection and out-of-order detection in a memory system. One aspect is a system that includes a plurality of channels, each providing communication with a memory buffer chip and a plurality of memory devices. A memory control unit is coupled to the plurality of channels. The memory control unit is configured to perform a method that includes receiving frames on two or more of the channels. The memory control unit identifies alignment logic input in each of the received frames and generates a summarized input to alignment logic for each of the channels of the received frames based on the alignment logic input. The memory control unit adjusts a timing alignment based on a skew value per channel. Each of the timing adjusted summarized inputs is compared. Based on a mismatch between at least two of the timing adjusted summarized inputs, a miscompare signal is asserted.

Abstract: A method, User Equipment (UE), and first base station serving a first cell for performing an access request by the UE for operatively connecting the UE to a second cell. The UE obtains radio quality parameters indicating quality of radio reception between the UE and the first and second cells. Based on the obtained radio quality parameters, it is determined whether the UE is in a link imbalance zone where the UE has an option to be connected to both the first cell and the second cell. If so, the UE sends access request information, to the first base station and indicates availability of the UE to be redirected to the second cell. The first base station may redirect the UE to the second cell when a load of the first cell meets pre-defined load criteria.

Abstract: A compact, computationally-efficient, firmware-resident version of a DSP autocorrelation function, extracts periodic information from noise-corrupted signals. The function adapts autocorrelation parameters in real-time either autonomously or via up-link commands from a ground-based system. The function calculates specific determination values that optimize the performance of the autocorrelation process for a specific application. The per-bit multiplication used by the function can be performed by logically ANDing each of the respective samples in the two arrays. The summation of the per-bit multiplication is an integer summation, rather than the more time-consuming floating-point summation. A further aspect of the present function is the utilization of a threshold detection process to discretize the correlation output estimate to a one-bit binary sample.

Abstract: Methods in a multiple-cell cellular network that implements iterative coordinated beamforming (I-CBF) algorithms with limited cooperation from adjacent nodes (base stations and/or mobile stations) may jointly determine transmit beamforming vectors and receive combining vectors to increase sum throughput. The transmit beamforming vectors and receive combining vectors can be determined based on a performance metric, such as by maximizing SINR (signal-to-interference-and-noise ratio) for each mobile station in the network, maximizing SLNR (signal-to-leakage-and-noise ratio) for each base station in the network, or minimizing SMSE (sum mean square error). The algorithms may be performed to update vectors synchronously. In other cases, the algorithms may be performed to update vectors asynchronously.

Abstract: Disclosed are a method and an apparatus for setting a reference signal. A wireless apparatus receives a primary synchronization signal (PSS) transmitted by a first orthogonal frequency division multiplexing (OFDM) symbol and a secondary synchronization signal (SSS) from a second OFDM symbol, and can search information for setting a reference signal on the basis of symbol numbers of the first OFDM symbol and the second OFDM symbol. Inter-cell interference can be reduced by means of a variety of methods for setting a reference signal.

Abstract: A digital signal processor (300), compatible with the Common Public Radio Interface (CPRI), permits reading and writing of IQ data of antenna carriers which have two different sampling rates by using just two single sample rate DMA (Direct Memory Access) modules (306,313). The digital signal processor (300) is capable of processing data of different sampling rates on just one CPRI lane comprising one framer (302). This is achieved by incorporating a divider module (307) and a multiplexer module (314) between the framer (302) and system memory (309, 315). The processor (300) may also be configured so that single sampling rates can also be accommodated.

Abstract: Provided is a terminal device that performs communication with a base station device, the terminal device including a reception unit that receives information relating to a first configuration, information relating to a second configuration, and a downlink control information (DCI) format; and a transmission unit that transmit an uplink signal to the base station device in a case where the uplink signal is scheduled based on the DCI format, and switching between DCI formats that are applied to subframe sets, respectively.

Abstract: Forward Error Correction (FEC) techniques that generate independently decodable resource blocks are beneficial for Successive Interference Cancellation (SIC) demodulation. One FEC technique for generating independently decodable resource blocks includes mapping locally decodable FEC codeblocks into unique resource blocks such that substantially all of the bits of the FEC codeblock are carried within a single resource block. The locally decodable FEC codeblocks can be generated from different FEC encoding modules or from a common FEC encoding module. Another technique for generating independently decodable resource blocks includes encoding a stream of information bits into low-density parity-check (LDPC) codeblocks having high ratios of inward peering parity bits. These high ratios of inward peering parity bits allow substantial portions of each LDPC codeblock to be decoded independently from information carried by other LDPC codeblocks.

Abstract: Apparatus and methods store data in a non-volatile solid state memory device according to a rate-compatible code, such as a rate-compatible convolutional code (RPCC). An example of such a memory device is a flash memory device. Data can initially be block encoded for error correction and detection. The block-coded data can be further convolutionally encoded. Convolutional-coded data can be punctured and stored in the memory device. The puncturing decreases the amount of memory used to store the data. Depending on conditions, the amount of puncturing can vary from no puncturing to a relatively high amount of puncturing to vary the amount of additional error correction provided and memory used. The punctured data can be decoded when data is to be read from the memory device.

Abstract: In one embodiment, a device (e.g., a transmitter) determines a level of error protection of each bit position within symbols of a particular constellation map used for modulation-based communication, and also determines priority levels of application data bits to be placed into a communication frame. Application data bits may then be placed into symbols of the communication frame, where higher priority application data bits are placed into bit positions with greater or equal levels of protection than bit positions into which lower priority application data bits are placed. The communication frame may then be transmitted to one or more receivers with an indication of how to decode the placement of the application data bits within the symbols. In another embodiment, the particular constellation map may be dynamically selected from a plurality of available constellation maps, such as based on communication channel conditions and/or applications generating the data.

Abstract: Provided are a method of monitoring a control channel in a multiple antenna system, in which a plurality of layers are defined, and a wireless device using same. The wireless device monitors the control channel in a search layer that is selected from the plurality of layers.

Abstract: Systems and methodologies are described that facilitate scrambling of downlink reference signals utilizing a pseudo-random sequence (PRS) corresponding to a primary synchronization code (PSC) and secondary synchronization code (SSC) combination. In an aspect, a method includes receiving a scrambled downlink reference signal, determining a pseudo-random sequence based on received PSC and SSC, and descrambling a portion of subframes of the downlink reference signal according to the pseudo-random sequence and a determined cyclic prefix length for one or more of the portion of subframes.

Abstract: A system including a circuit to compensate for sampling phase jitter. The system includes a channel estimator to determine, based on training symbols in a preamble of a data packet received via a communication channel, an estimate of the communication channel and a carrier frequency associated with the communication channel. The circuit compensates, based on the determined carrier frequency, a phase of the estimate of the communication channel to adjust for a carrier frequency offset associated with the communication channel, and, based on a data rate at which the data packet was received via the communication channel, selectively compensates the estimate of the communication channel for sampling phase jitter.

Abstract: A terrestrial positioning and timing system (TPTS) comprising a ground segment and user segment is disclosed that is comprised of a spread-spectrum based range and bearing reference signal, with respect to a reference time, transmitted by an antenna over a broad region of space; and a spread-spectrum based bearing variable signal with bearing specific modulation referenced to a reference time, transmitted using a scanning antenna over a spatial region of space that is more narrow than the spread-spectrum based range and bearing reference signal transmission spatial area. Various embodiments enable the TPTS station and user to support various position, velocity or time services. Most notably, an embodiment with a single TPTS station, active interrogation/transponder reply, and data delivery subsystem can provide a position, velocity, and time solution for the user. Additional embodiments disclosed provide varying levels of user solutions to include bearing, position, velocity, or time.

Abstract: Provided is a device and a method for eliminating inter-cell interference in Multiple Input Multiple Output (MIMO) wireless communication system. The method for operating a user equipment for eliminating the inter-cell interference includes determining one or more optimum bands among bands not requested to be restricted from a neighboring cell, determining at least one of band and Precoding Matrix Index (PMI) to be requested to be restricted to the neighboring cell among the determined one or more optimum bands, and feeding back at least one of the band and PMI to be requested to be restricted to the neighboring cell to a serving base station.

Abstract: Embodiments relate to out-of-synchronization detection and out-of-order detection in a memory system. One aspect is a system that includes a plurality of channels, each providing communication with a memory buffer chip and a plurality of memory devices. A memory control unit is coupled to the plurality of channels. The memory control unit is configured to perform a method that includes receiving frames on two or more of the channels. The memory control unit identifies alignment logic input in each of the received frames and generates a summarized input to alignment logic for each of the channels of the received frames based on the alignment logic input. The memory control unit adjusts a timing alignment based on a skew value per channel. Each of the timing adjusted summarized inputs is compared. Based on a mismatch between at least two of the timing adjusted summarized inputs, a miscompare signal is asserted.

Abstract: A radio base station and a method therein are provided for scheduling a radio resource to a user equipment. The radio base station estimates a first channel quality and determines a pathloss between the user equipment and the serving radio base station and a gain based on the pathloss. The radio base station also obtains a gain of the user equipment towards of neighboring radio base stations, and determines a fraction of the determined pathloss, based on the gain and the obtained gains. The radio base station further determines a second channel quality of the channel based on the estimated first channel quality, the determined fraction and the determined pathloss to be compensated for; and schedules a radio resource for the user equipment based on the determined second channel quality.

Abstract: A transmission method for simultaneously transmitting a first modulated signal and a second modulated signal at the same frequency includes performing precoding on both signals using a fixed precoding matrix and regularly changing the phase of at least one of the signals. In this method, the power ratio between a plurality of signals transmitted from a plurality of antennas at the same frequency and at the same time differs from the power ratio between a plurality of pilot signals transmitted from the plurality of antennas at the same frequency and at the same time, whereby the accuracy of channel estimation by a reception device is improved.

Abstract: Various embodiments relate to an in-band measurement of the optical signal-to-noise ratio (OSNR) of an optical signal in an optically-amplified transmission system. A demodulation device may tap a transmission fiber to receive an optical signal containing a low-frequency signal. A filter may implement first and second passbands to filter portions of an optical channel in the optical signal. Once the filtered channel is converted to first and second target electrical signals, a measurement circuit may take measurements of DC and AC components for each of the target electrical signals. Based on measurements of the two target electrical signals, the demodulation device may calculate the OSNR as a function of the DC and AC components, or as a function of the adjustment factors between first and second passbands of the optical channel represented by the first and second target electrical signals.

Abstract: Disclosed example methods to distribute communication of a data stream include, in response to a request received from a first device, assigning a number of communication ports to a stream splitting session via which communication of the data stream is to be distributed among a plurality of devices. Such example methods also include determining a type of the request from among a plurality of possible types. Such example methods further include, when the request corresponds to a first type, providing information to the first device for distribution among the plurality of devices, the information to be used to establish respective data connections via which respective portions of the data stream are to be received by the plurality of devices during the stream splitting session.

Abstract: The present invention relates to a method for transmitting and receiving synchronization signals in a wireless access system for supporting carrier aggregation/multiple cells (CA) and an apparatus therefor. Specifically, the present invention includes the steps of transmitting a first synchronization signal through an extension carrier which is not operated as a single carrier but is operated as a part of the CA, wherein a transmission area of the first synchronization signal differs from a transmission area of a second synchronization signal which is transmitted through a legacy carrier capable of being operated as the single carrier.

Abstract: Techniques for compensating for self-induced interference in a small cell base station are provided. The techniques include detecting control signals from a neighboring base station associated with a wireless communication network, the control signals being transmitted by the neighboring base station at predetermined intervals, and compensating for self-induced interference caused by a transmitter of the small cell base station transmitting during the predetermined intervals in which control signals are received from the neighboring base station and the transmitter of the small cell base station is transmitting data.

Abstract: Individual multipath components of digital data symbols sent from a transmitter on at least two carrier frequencies generated from a common clock signal, are received (401) with individual delays and processed by a receiver unit having at least two fingers. Successive channel estimates are determined (402) from received symbols for each finger and each carrier, and an estimated frequency error is determined (404) for each finger and each carrier. A linear equation system is constructed (405), in which each determined frequency error is expressed as a function of a first variable indicative of frequency drift and a second variable indicative of frequency error caused by Doppler effect. The equation system is solved (406) to provide a solution with estimates of the first and second variables for each finger, and an estimated frequency drift is determined (407) from the solution and utilized (408) as feedback signal for adjusting receiver clock frequency.

Abstract: In a wireless communication system, from available data resource elements (REs) in a subframe, REs are assigned to transmissions of a reference signal, thereby resulting in a plurality of remaining data REs. Furthermore, REs from the plurality of remaining data REs are assigned for data transmission to a wireless device in groups of a predetermined number of REs such that all assigned data REs within a group are within a predetermined number of symbols of each other in time domain and within a second predetermined number of subcarriers of each other in frequency domain, thereby resulting in at least one ungrouped RE.

Abstract: A base station servicing a cell of a cellular network provides power control of a cell independent of any other cell in the network. For downlink power control, the base station transmits information at its full power and applies a downlink power control factor to each downlink channel to equalize downlink throughputs of the mobile terminals in the cell. For uplink power control, the base station transmits instructions to have the uplink channel with the worst channel condition to transmit at its full power and the other uplink channels to transmit at that same full power. Each transmission is scaled by a corresponding uplink power control factor such that uplink throughputs for the mobile terminals in the cell are equalized. The base station applies an approximation of a rigorous capacity lower bound algorithm using propagation channel conditions and channel parameters to calculate the uplink and downlink power control factors.

Abstract: A method of connecting devices to a network is provided. The method includes providing base stations connected to a network, and at each of the base stations, receiving probe signals from terminal devices. For each of the terminal devices, the base station calculates a signature waveform based on a time-reversed waveform of a channel response signal derived from the corresponding probe signal. For each of the terminal devices, the base station determines a downlink transmit signal for the terminal device based on the downlink data and the corresponding signature waveform, and transmits the downlink signals to the terminal devices. Several base stations have overlapping broadcast regions, several terminal devices are located within the overlapped broadcast regions, the base stations transmit the downlink signals using a same frequency band, and some downlink signals transmitted by base stations having overlapping broadcast regions also overlap in time.

Abstract: 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.

Abstract: Techniques for transmitting synchronization signals to assist user equipments (UEs) perform cell searches are described. In one design, a base station for a cell may generate and transmit a primary synchronization signal and a secondary synchronization signal, which may be used by the UEs for initial cell search at power up. The base station may also generate and transmit one or more beacon signals, which may be used by the UEs for neighbor cell search to detect for neighbor cells. The number of beacon signals to transmit and the set of subcarriers usable for each beacon signal may be determined based on the system bandwidth. Each beacon signal may be mapped to one subcarrier in the set of subcarriers in each beacon symbol period. This one subcarrier may be determined based on a beacon hopping pattern or a beacon code and may be dependent on a cell identifier (ID).