Abstract: Two preamble partition schemes are provided for flexible network deployment and efficient utilization of limited cell identification resources in a wireless network. In a soft partition scheme, the entire preamble sequences are partitioned into several configurable non-overlapping subsets, and each subset is associated with a corresponding cell type. In a hybrid partition scheme, a combination of fixed and configurable subsets is used for preamble partition. The partitioning information is carried in a broadcasting channel broadcasted from base stations to mobile stations. In one embodiment, after a mobile station performs scanning and synchronization with a first base station, it derives the cell type of the first base station from cell identification and partitioning information. The mobile station completes ranging and network entry with the first base station if the cell type is preferred, and starts to perform scanning and synchronization with a second base station if the cell type is non-preferred.

Abstract: A method for using a wireless digital base station to receive, process and transmit a plurality of communications having independent data rates establishing a first communication channel having a first data communication rate to support a first communication; determining the data rate required to support the first communication; selecting one or more transmission channels, from a plurality of available transmission channels, required to support said required data rate; and transmitting the first communication using one or more selected transmission channels. The plurality of available transmission channels includes at least one B or D channel.

Abstract: The invention relates to a method, apparatus and system for configuring control channels in a mobile communication network and a mobile station. In order to suggest another improved scheme for configuring control channels, in particular control channels related to the transmission of user data the invention suggests aligning the size of the control channel information of different formats to an equal number of coded control channel information bits and/or modulation symbols for each control channel. The control channels may comprise scheduling related control information. According to another aspect of the invention, a more flexible solution is proposed that may allow for taking different geometries of mobile stations within a cell into account.

Abstract: A method of broadcasting frequency policy information in a cognitive radio based communication system, apparatus therefore and a communication method using the same are disclosed. In particular, a policy broadcaster is provided as a subject performing a broadcast of frequency policy information in cognitive radio communication. A method of broadcasting frequency policy information using the same and a method of performing cognitive radio communication by obtaining frequency policy information using the same are provided. Moreover, an enhanced superframe structure, which is capable of providing a seamless service in case that a narrowband terminal is introduced in the middle of a superframe, is provided.

Abstract: A control information channel signal formation unit has a channel encoding section and a spreading section. The channel encoding section multiplexes a plurality of types of control information for a single communication terminal for use in uplink packet transmission, using different symbol patterns between a plurality of types of control information. The spreading section spreads symbols obtained by the channel encoding section using one spreading code.

Abstract: A wireless device receives a command for transmission of a random access preamble on a first cell. The wireless device transmits the random access preamble in parallel with a first packet and/or at least one second packet. If a total calculated transmission power exceeds a predefined value, the wireless device adjusts transmission power of one or more of the at least one parallel uplink transmission considering a higher priority for the transmission power of the random access preamble.

Abstract: Improvements are disclosed for in-band signaling, i.e., transmission of data in a voice channel of a digital wireless network during a voice call session. A family of narrow-band signaling methods, some employing tapered waveforms, is disclosed to successfully pass data-carrying signals through the low-bit rate modes of the EVRC-B vocoder commonly used in CDMA wireless channels. These features can be used in cell phones or other wireless communication devices, including automotive applications.

Abstract: A receiving system dynamically searches the communications band for transmissions of messages having the same nominal communications parameters, including the use of the same spreading code, but having potentially different specific frequencies and code-phases. The receiver, which is independent of the transmitters, samples the communications band at each code-phase of the spreading code over a span of downconverted transmission frequencies. When a message element is detected at a particular code-phase and frequency, it is forwarded to a demodulator that demodulates the message and sends it to its intended destination. In a preferred embodiment, a progressive Fourier Transform is used to incrementally determine the power level at each successive code-phase at a given frequency, thereby substantially reducing the time required to search for transmissions at each discrete code-phase.

Abstract: A technique for cell-identity detection is provided. In one method embodiment, at least one cell-identity in a cellular telecommunication network is determined. The method comprises the steps of receiving a synchronization signal, calculating first correlations and second correlations as well as determining the at least one cell-identity. The received synchronization signal includes a first partial signal and a second partial signal. The first correlations are calculated between the first partial signal and first reference signals, each of which indicates one or more first cell-identities. The second correlations are calculated between the second partial signal and second reference signals, each of which indicates one or more cell-identities out of the first cell-identities. The second reference signals are selected depending on the first correlations. The cell-identity is determined based on the second correlations. The complexity for cell-identity detection is reduced by the technique.

Abstract: The technology described automatically resolves cell identity collisions/conflicts in a cellular radio communications network. A detecting node determines that a first cell identifier associated with a first conflicting cell is the same as a second cell identifier associated with a second conflicting cell. One of the first and second conflicting cells is selected to change its cell identifier. A different cell identifier is determined for the selected cell. The different cell identifier is then provided to other cells and preferably to user equipment (UE) terminals without disrupting ongoing UE communications.

Abstract: The present invention relates to a system and a method for transmitting data between a first terminal and a communication network access point. The method may comprise the steps of defining a first set of scrambling codes and a second set of scrambling codes different from the first set of scrambling codes. Further, the method may comprise defining a first selection scheme for a first parameter. The method may still further comprise determining a current parameter value for the first parameter and evaluating the current parameter value on the basis of the first selection scheme and selecting a scrambling code from the first set of scrambling codes or the second set of scrambling codes based on the evaluation. Even further, the method may comprise packaging and transmitting data between the first terminal and the communication network access point using the selected scrambling codes.

Abstract: Methods and apparatus for providing a wireless expansion network. In an aspect, an apparatus includes an expansion circuit configured to identify at least one of a selected uplink (UL) channel and a selected downlink (DL) channel that are provided by one of a primary network and an expansion network, and a processing circuit configured to switch to the at least one of the selected UL and DL channels. An apparatus includes means for obtaining link parameters associated with a primary network and an expansion network, means for identifying clients that are assigned transmission channels on both the primary network and the expansion network based on the link parameters, and means for transmitting messages to the clients to indicate the assigned transmission channels.

Abstract: A high data rate UWB system implements a frame structure that uses a connected set of m-sequences comprising the lowest possible cross-correlation and perfect, or near perfect autocorrelation. Each m-sequence can be used to identify a different piconet A very efficient code matched filter can then be used to decode the frames and achieve synchronization with a piconets.

Abstract: A method and apparatus for performing a serving high speed downlink shared channel (HS-DSCH) cell change from a source cell to a target cell are disclosed. A wireless transmit/receive unit (WTRU) may be pre-configured with HS-DSCH configuration for the target cell. The WTRU may start monitoring a high speed shared control channel (HS-SCCH) on the target cell using the pre-loaded HS-DSCH configuration for the target cell on a condition that a measurement report is triggered by the event 1D. The WTRU may initiate a timer when the WTRU starts monitoring the HS-SCCH on the target cell.

Abstract: A method for assigning sending permissions in a telecommunications system and a telecommunications system comprising a unit (20) providing access to said system for at least one telecommunication terminal (40) and a control unit (11) for scheduling data transfer between said at least one telecommunication terminal and the telecommunications system, whereby the control unit (11) is located apart from the access providing unit (20) and whereby said data transfer takes place on at least one transmission channel and more than one telecommunication terminal is arranged to use the same transmission channel so that a telecommunication terminal is allowed to send on the transmission channel when a sending permission is assigned to said telecommunication terminal, whereby the access providing unit (20) is arranged to assign a sending permission to the telecommunication terminal.

Abstract: Briefly, in accordance with one embodiment of the invention, a wireless communication system may adaptively switch between a multiple input, multiple output mode and a spatial division, multiple access mode based at least in part on channel conditions and traffic conditions.

Abstract: A transceiver including: an antenna configured to a receive a first signal transmitted on a radio frequency channel; and a peak-to-sidelobe ratio determination unit configured to generate a second signal based on a ratio, in which the ratio is based on a peak value and a sidelobe value, and the peak value and the sidelobe value are determined based on a non-correlated version of the first signal. The transceiver further includes a carrier sense unit configured to, based on the second signal, generate a third signal indicating (i) whether the radio frequency channel is busy or (ii) whether the first signal is valid.

Abstract: The present application discloses a method for transmitting a downlink signal in a multi-antenna wireless communication system. In detail, the method comprises: a step of mapping a signal of a codeword domain to a signal of a layer domain; a step of mapping the signal of the layer domain to a signal of a virtual antenna port domain using a precoding matrix; and a step of transmitting the signal of the virtual antenna port domain to a physical antenna port, wherein the precoding matrix is changed in a channel measurement unit, and the signal of the layer domain is layer-permutated in the channel measurement unit. Preferably, the channel measurement unit is constituted by one or more resource blocks (RBs).

Abstract: A method for transmitting information of resources for use in transmission of ACK/NACK signals in a mobile communication system is disclosed. An example method for receiving ACK/NACK signals in a mobile communication system is also disclosed. When resources for transmission of data and resources for transmission of control information of the data are scheduled through virtual unit resources, the method identifies information of resources for receiving an ACK/NACK signal for transmission data mapped to information of at least one of a virtual unit resource allocated to the transmission data and a virtual unit resource allocated to control information of the transmission data, and receives the ACK/NACK signal for the transmission data through the information of resources for receiving the ACK/NACK signal.

Abstract: Systems and techniques for communications include forming a data packet, selecting a plurality of transmission parameters for the data packet, generating information having one of a plurality of codes identifying the transmission parameters, and transmitting the data packet on a first channel and the information on a second channel. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

Abstract: The present disclosure discloses a method and an apparatus for transmitting an overload message. By detecting, after determining a latest transmit slot for an overhead message to be transmitted, whether there is an idle paging slot between a current slot and the latest transmit slot, the method transmits the overhead message to be transmitted in the idle paging slot or in the latest transmit slot, such that, when scheduling overhead messages, a paging scheduling module of the base station system not only can meet the requirement of transmitting each overhead message at least once in one overhead message period as required in CDMA2000 protocol, but also automatically schedule the next overhead message when there is an idle slot in the paging channel, thus making the best use of the idle slots of the paging channel and shortening the actual transmission period for overhead messages, without affecting the transmission of other messages in the paging channel.

Abstract: The embodiments of the present invention disclose an apparatus for transmitting multi-ary error-correcting codes, an apparatus for receiving multi-ary error-correcting codes, a data transmission system, and relevant methods to simplify operations. The apparatus for transmitting multi-ary error-correcting codes includes: a multi-ary channel encoder, adapted to perform multi-ary coding for source data frames of a user to obtain encoded sequences; a symbol mapper, adapted to perform symbol mapping for the encoded sequences to obtain symbol sequences; and a spreading and interleaving unit, adapted to spread and interleave the symbol sequences. Moreover, a corresponding apparatus for receiving multi-ary error-correcting codes, a data transmission system, and relevant methods are provided.

Abstract: A code sequence is described by a line of a code matrix, the latter being obtained by formation of a Hadamard matrix with a length n and multiplication of lines of the Hadamard matrix by ?1.

Abstract: The present invention provides methods for incorporating and operating a mesh base station in a wireless network. The mesh base station may utilize common wireless resource allocations as a corresponding wireless base station while transmitting to wireless subscriber stations during the same time period. The mesh base station obtains a data packet from the wireless base station over a backhaul link during a scheduled time period and transmits the data packet to the designated wireless subscriber station during another scheduled time period. The wireless base station and the mesh base station may also receive data packets from wireless subscriber stations during a same time period. A wireless network may be configured with two mesh base stations at an approximate boundary of two adjacent sector coverage areas, where a coverage area is supported by a wireless base station and each mesh base station supports wireless subscriber stations within a coverage radius.

Abstract: A method, an apparatus, and a computer program that includes forming frequency hopping position of the sounding reference signal is based on a hopping pattern. The hopping pattern of the sounding reference signal is configured to utilize a tree assignment for a frequency allocation of the sounding reference signal and to support at least one frequency band branch per layer. The hopping pattern of the sounding reference signal is also configured to provide consecutive sounding reference signals on widely separated frequency allocations.

Abstract: The disclosure aims to implement an automatic frequency offset compensation of the frequency between emitter and receiver equipments, in radio frequency modules, with a frequency offset that can be larger than that the receiver can allow, without time loss and extra consumption. To solve this problem, the disclosure provides an automatic frequency offset compensation device comprising a reception front end, at least a filter, an I/Q demodulator for obtaining the I (In Phase) and Q (Quadrature) parameter, an automatic frequency control AFC unit for comparison of a received frequency with the real frequency of the equipment, and a microcontroller and a frequency synthesizer. In this device, the frequency offset is calculated by the AFC unit from the information given by the I/Q demodulator.

Abstract: Techniques for transmitting data in a manner to support multi-user scheduling, multiple-input multiple-output (MIMO) transmission, and interference cancellation are described. A base station assigns multiple time segments of a transmission time interval (TTI) to at least one terminal, maps data for each terminal to at least one time segment assigned to the terminal, and spreads the data in each time segment with at least one channelization code used in the TTI. A terminal receives an assignment of at least one time segment from among multiple time segments of the TTI, obtains input samples for the at least one time segment, and despreads the input samples with the at least one channelization code used in the TTI.

Abstract: A transmitting device of the present invention is used in a CDMA communications system, and comprises: a plurality of spreading units for spreading user data; a managing unit for managing spread codes; a determining unit for determining a number of codes to be multiplexed based on use statuses of the spread codes managed by said managing unit; and a multiplexing unit for multiplexing the user data spread by spreading units a number of which corresponds to the number of codes to be multiplexed.

Abstract: A wireless device receives a control command for transmission of a random access preamble on a first cell. The wireless device transmits the random access preamble in parallel with a first control packet, a second packet and/or a third packet. The wireless device determines a transmission power for the random access preamble. If a total calculated transmission power exceeds a predefined value, the wireless device reducing or scaling linear transmission power of one or more of the at least one parallel uplink transmission considering a higher priority for the transmission power of the random access preamble.

Abstract: Methods and systems for correction of frequency errors in multi-carrier communication systems. The composite frequency error associated with the downlink signals are used to infer or derive the composite frequency error associated with the uplink signals, which are used to pre-compensate the uplink signals. Special signal components are transmitted by multiple base stations to facilitate frequency-error estimation and other system control functionalities at a mobile device. The mobile device carries out temporal, spatial, or spatial-temporal processing of the composite frequency errors associated with one or more base stations to determine the clock frequency error and the Doppler shift with respect to its serving base station.

Abstract: A base station may transmit at varied power levels. Subscriber stations receiving the power levels can transmit noise information back to the base station. As a result, co-channel interference can be determined from the varied power transmissions, either in the base station or in the subscriber station. In addition, in some embodiments, the transmissions may include different phases so that the phase of the co-channel interference may be determined as well.

Abstract: A method for performing a hybrid automatic repeat request (HARQ) by a relay station (RS) in a wireless communication system is provided. The method comprises performing HARQ with a mobile station (MS) by a fixed HARQ period; and performing HARQ with a base station (BS) by a HARQ period series, wherein the HARQ period series comprises a plurality of HARQ period series element (Xk,yk), where (Xk,yk) indicates that when data is transmitted in n-th subframe, an ACK/NACK signal is received in (n+xk)-th subframe and the data is retransmitted in (n+xk+yk)-th subframe when the ACK/NACK signal is a NACK signal, wherein at least one of xk and yk for one HARQ period in the HARQ period series is different from at least one of xk and yk for the other HARQ period in the HARQ period series.

Abstract: A wireless hybrid time division multiple access/code division multiple access (TDMA/CDMA) user equipment (UE) includes a signaling receiver and a data detection device in communication with the signaling receiver. The signaling receiver is configured to receive and recover signaled information of code and timeslot assignments of the UE to support an RF communication. The data detection device is configured to recover from the signaling information an identifier of a plurality of assigned timeslots and an indication of a first and last code of a set of consecutive codes. The last code is identified by an identifier associated with the last code.

Abstract: A method and apparatus of controlling a transmit power in a wireless local area network is provided. A wireless device operated in a TV White Space transmits a white space map indicating a list of available channels, and transmits an extended power constraint indicating a plurality of transmission channels and a plurality of maximum transmit powers, wherein the plurality of transmission channels are selected among the list of available channels and each of the plurality of maximum transmit powers corresponds to a maximum transmit power for each of the plurality of transmission channels. Interference can be mitigated between wireless devices operated in the TV White Space.

Abstract: Antenna systems are used for transmitting common overhead channels (pilot, sync, and paging channels) over a whole sector while transmitting and receiving unique traffic channels on individual beams in the sector. Each beam in the sector is transmitted at a frequency offset from other beams in the sector. The offset frequency is chosen such that the effect of cancellation of the pilot channel caused by the summing of signals from multiple beams is minimized. Alternative, each beam in the sector can have a time dependent phase offset relative to each other to minimize the effect of cancellation of the pilot channel caused by the summing of signals from multiple beams. System capacity is substantially increased since the number of traffic carrying beams per sector is increased without using more pilot channel PN offsets. Beams are fixed and the same antennas are used for the overhead channels as the traffic channels, obviating the need for complex algorithms and calibration procedures.

Abstract: The method an apparatus described herein manages uplink resources to increase spectral efficiency and system capacity. According to one embodiment of the present invention, a base station may be assigned two or more downlink carriers for downlink transmission and two or more corresponding uplink carriers. In a multi-carrier mode, the base station may transmit signals on two or more downlink carriers to the same mobile terminal, and receive signals from the mobile terminal on one of the paired uplink terminals. The uplink carriers can be operated at different interference levels and the uplink traffic can be divided between the available uplink carriers based on the type of traffic and/or data transmission parameters. The mobile terminals may also be allowed to switch between the uplink carriers to improve overall efficiency.

Abstract: Methods and systems are provided for selecting carriers for low-cost Internet base station (LCIB) frequency-hopping pilot beacons. The LCIB receives channel-list message information associated with one or more macro-network coverage areas within a vicinity of the LCIB. The LCIB then uses the received channel-list message information to identify a set of macro-network carriers on which to transmit a frequency-hopping pilot beacon. The LCIB can then transmit its frequency-hopping pilot beacon on each of the carriers in the identified set.

Abstract: A method, system and computer program product for the transmission of data from a transmitter to receiver. The present invention is directed to improving data transmission. To this end, the transmission of data is accelerated, and an inband-signaling of information is carried out on an MAC-layer plane, wherein the information is particularly relevant to the base station (BS).

Abstract: The exemplary embodiments of the invention provide at least a method and apparatus for defining a set of parameters to establish a possibility for a single user equipment to transmit uplink data on a physical uplink shared channel via two or more clusters including adjacent resource blocks, where at least one of the clusters includes at least one blanked physical uplink control channel resource block and where at least one of the clusters includes at least one physical shared channel resource block, and transmitting the parameters to at least the single user equipment. Further, the exemplary embodiments of the invention provide at least a method and apparatus for receiving a set of parameters defining a physical uplink control channel and allocating physical/virtual resource blocks based at least on received physical uplink control channel configuration parameters, a received resource allocation and predefined physical resource block mapping rules.

Abstract: A master station includes an optical transmission interface for transmitting signals to a plurality of slave stations at a first transfer rate or a second transfer rate which is higher than the first one, packet buffers for accumulating the signals addressed to each of the plurality of slave stations, and a control unit for determining transmission timings and transfer rates of the signals on the basis of an amount of the signals accumulated in the packet buffers, transmitting the signals with the determined timings and rates, and notifying each of the slave stations about the determined timings and rates. Each of the slave stations includes an optical reception interface for receiving the signals of the first transfer rate or the second transfer rate, and a control unit for controlling the optical reception interface on the basis of the timings and rates which the slave stations is notified.

Abstract: A method and a device for processing data in a dedicated physical data channel, comprising, when data on which softer handover is performed is extended DPDCH data, sending, after completing the softer merging of the data for one timeslot, a request for secondary despread, where the request contains channel numbers; acquiring the request for secondary despread, determining channels according to the channel numbers contained in the request for secondary despread, determining a channel having the highest priority from the channels according to a predetermined channel priority order, and secondarily despreading, framing and outputting data of the channel having the highest priority.

Abstract: Examples are disclosed for transmitting and receiving schemes for multiuser single-carrier space time spreading (STS) with frequency domain equalization.

Abstract: Provided are a human body communication apparatus for non-contact communications using a frequency-selective baseband and a human body communication method for non-contact communications in the same. The human body communication apparatus may be useful to perform stable communications between users by reducing interference induced from other communication apparatuses without affecting interference between the users since data are transmitted/received between communication apparatuses adjacent to a human body by spreading and despreading the data using only spreading codes of a limited frequency band (frequency-selective baseband) in which an inductive electromagnetic field formed by an antenna shows the most effective characteristics.

Abstract: An adaptive multi-channel architecture for a wireless network is provided. A frequency hopping sequence generator module is compliant with a frequency hopping spread spectrum (FHSS) communications protocol. The frequency hopping sequence generator module is capable of performing FHSS concurrently on a plurality of communications channels. A frequency replacement module is coupled to the frequency hopping sequence generator module. The frequency replacement module is configured to receive feedback data over a feedback channel and adaptively select a transmission channel from the plurality of communications channels using the feedback data.

Abstract: Provided are a method of information transmission performed by a transmitter in a wireless transmission system and an apparatus for same.

Abstract: A method and apparatus for user data traffic handling for an EVDO enabled hybrid mode mobile device, the method having the steps of: blocking a system selection at the mobile device until no EVDO traffic state exists, the blocking step includes either monitoring whether a user changes a scan mode on the mobile device; and if the user changes the scan mode, checking whether the mobile device is in an EVDO traffic state; and if yes delaying a system selection until the EVDO traffic state is ended, or monitoring whether a user is in an EVDO traffic state, and if yes, preventing a user from accessing a scan mode menu on the mobile device.

Abstract: Disclosed are an apparatus and method for constant amplitude encoding of a transmission signal in a CDM (Code Division Multiplexing) communication system. The apparatus for constant amplitude encoding of a transmission signal includes: an encoding module sequentially performing horizontal encoding and vertical encoding on an input signal; and a spreading and multiplexing module spreading the signal which has been encoded by the encoding module and multiplexing the spread signal in a vertical direction to output a data stream having a constant amplitude.

Abstract: Systems and methodologies are described that facilitate automatically configuring femtocells based at least in part on signals transmitted by other femtocells and macrocells. In particular, a femtocell can receive signals from neighboring cells, much like a mobile device, and determine communications parameters used. The parameters can be channel identifiers, pseudo-noise (PN) offsets, and the like. The femtocell can subsequently configure its communication parameters to vary from those detected in the neighboring signals, or to match those of neighboring signals where the parameters relate to the communications environment, for example. Thus, the femtocell self-configures to mitigate interference with surrounding femtocells and/or macrocells.

Abstract: A description is given for a method for operating a wireless multichannel CDMA transmitter, wherein a power metric based on a particular signal configuration is determined, the power metric being determined as a function of power weighting factors used in the channels of the particular signal configuration, and wherein the transmitter output power is adjusted based on the power metric.

Abstract: A private communication network through which a plurality of member users communicate using the public switched telephone network (PSTN) is disclosed herein. Each member user utilizes either a modified land line telephone directly connected to PSTN, or uses a modified mobile telephone operatively coupled to the PSTN through a wireless communication system. The private communication network includes network call manager having a telephone network interface for establishing a telephone connection with each of a plurality of telephone lines of the PSTN. Each of the plurality of telephone lines is associated with one of the plurality of member users. The network call manager further includes a switch matrix, coupled to the telephone network interface, for providing an information signal received from an active member user over a selected telephone line to the remaining non-active member users.