Abstract: A system and method for power saving in a wireless network for transmitting uncompressed audio/video (A/V) data disclosed. The method includes an adaptive sleep period scheme in which the current sleep period is computed based at least partly on one or more previous sleep periods. The method also includes entering an inactive state by a coordinator as well as non-coordinator stations in the wireless network in which no beacons are transmitted.

Abstract: A mobile station capable of accessing a wireless communication network having a plurality of base stations is provided. The mobile station is configured to determine if a battery level of the mobile station is below a selected one of a plurality of power level thresholds. The mobile station is also configured to, upon a determination that the battery level is below the selected power level threshold, send a battery report to a first base station of the wireless communication network. The mobile station is further configured to enter a battery power preservation mode. The battery power preservation mode may include an enhanced idle mode, an enhanced sleep mode, or a persistent allocation mode.

Abstract: A base station selection method is disclosed to select between two base stations for connecting a mobile device in a wireless neighborhood to a network. The wireless neighborhood may support multiple carriers and multiple radio access technologies. The base station selection method performs mobility estimation of the mobile device, where possible, to perform cell selection, but is also capable of performing cell selection without knowing the mobility of the device. Considerations such as the battery level of the mobile device, traffic demands of the network, and load balancing of network resources are used to make optimal selections for the mobile device as it travels through the wireless neighborhood.

Abstract: Cyclic shift delay (CSD) short training field (STF) for use within multiple user, multiple access, and/or MIMO wireless communications. Appropriately designed CSD STF is applied to communications in wireless communication systems thereby ensuring a minimized power error difference between respective portions of a packet transmitted therein. A first portion of the packet may be a short training field (STF) and a second portion of the packet may be a payload (e.g., a data portion). By applying such appropriately designed CSD STF to a packet, a wireless communication device that receives a signal corresponding to that packet need not perform extra or very significant backoff (e.g., with respect to a signal subsequent to automatic gain control (AGC) processing) thereby simplifying processing of that signal and potentially also reducing a total number of effective analog to digital converter (ADC) bits needed to represent a digitally sampled version of that signal.

Abstract: A network device includes a first transceiver configured to wirelessly receive a first packet from a second transceiver via a channel. The second transceiver is in a wireless device separate from the network device. A circuit is configured to determine a condition of the channel based on the first packet. The circuit has an inactive state and an active state. Elements of the circuit are powered while the circuit is in the active state. The elements of the circuit are not powered while the circuit is in the inactive state. A controller is configured to transition the circuit from the inactive state to the active state in response to the first transceiver wirelessly receiving the first packet, and return the circuit to the inactive state responsive to the circuit having completed determining the condition of the channel.

Abstract: Embodiments of the present disclosure include a system for managing cost in a wireless enabled advanced metering infrastructure (AMI). The system includes a remote server, a wide area network, and an access point device. The system further includes wireless enabled meters coupled to each other and to the access point through a neighborhood area network (NAN). The system includes datasinks. Each datasink is a wireless enabled meter capable of being a data coordinator and capable of receiving metering information from the sensors, processing metering information, and transmitting metering information to the access point. Moreover, each wireless enabled meter is capable of being a routing node and an endpoint node. Also, a first set of wireless enabled meters are configured to be routing nodes and a second set of wireless enabled meters are configured to be endpoint nodes based on a graph theoretic algorithm to reduce the cost of the AMI.

Abstract: In a wireless communication system comprising at least one access point (AP) and a plurality of stations (STAs), a method for transmission management of the wireless medium comprises the AP configuring a Multiple Receiver Aggregate Multi-Poll/Power Save Aggregation Descriptor (MMP/PSAD) frame with scheduled Uplink Transmission Time (ULT) information for the plurality of STAs. The AP then transmits the MMP/PSAD frame to the plurality of STAs. Upon successfully receiving and decoding the MMP/PSAD frame, STAs transmit during their scheduled ULT.

Abstract: A method of providing a point-to-point multicast service for transmitting data from a network element to a plurality of terminals in a communication system. The method includes transmitting a first message including service available information from the network element to the plurality of terminals, and transmitting a second message including radio bearer information from the network element to the plurality of terminals. The first message includes a pointer to the radio bearer information.

Abstract: A mobile communication system in which a number of common channels are added due to the offering of a new service includes: the assumption that a plurality of common channels can be arranged to transmit the same data, a monitor means that uses the reception path search results of either dedicated channels or random access channels of mobile stations to monitor the communication state of mobile stations within the cell and a control means that, when it is determined that distribution within the cell of mobile stations that receive the new service is unbalanced, effects control to divide and use the communication range permitted by a plurality of common channels.

Abstract: A mobile communication system according to the present invention comprises a mobile terminal (60) and a radio control apparatus (20) for sending an MBMS MODIFIED SERVICES INFORMATION message to the mobile terminal (60) on a DCCH. The radio control apparatus (20) comprises a controller (21) for including cell identification information in the MBMS MODIFIED SERVICES INFORMATION message, and a transmitter (22) for sending the MBMS MODIFIED SERVICES INFORMATION message with the cell identification information included therein to the mobile terminal (60) on the DCCH.

Abstract: A method for unicast packet conversion whereby a unicast packet is received at a receiving node followed by a determination as to whether the destination address is identified in the packet. If the address is identified, then the unicast packets are converted to a multicast packet and forwarded to a connected station. If a destination network address is not identified, then the packet is forwarded to the connected station.

Abstract: The present invention relates to an apparatus and method for cooperatively transmitting a downlink between a base station and a relay station. According to one embodiment of the present invention, a method for cooperatively transmitting a downlink signal between a base station and a relay station in a wireless broadband communication system comprises the steps of: receiving cooperative transmission data from the base station and transmitting an acknowledgement message corresponding to the cooperative transmission data to the base station; receiving scheduling information for transmitting the cooperative transmission data by a cooperative transmission scheme; and transmitting the data cooperative transmission data to a terminal in reference to the scheduling information.

Abstract: A radio base station includes a mobile communication system configured to transmit and receive a data signal between a mobile station and a gateway device via a relay node and a radio base station. The mobile communication system is configured such that the radio bearer for the mobile station is set between the mobile station and the relay node. The radio bearer for the relay node is set between the relay node and the radio base station. A network bearer for the mobile station is set between the relay node and the gateway device. The network bearer for a plurality of mobile stations is multiplexed in the radio bearer for the relay node, and a data signal is transmitted and received between the mobile station and the gateway device via the radio bearer for the mobile station and the network bearer for the mobile station.

Abstract: Solutions are described that enable a user equipment (UE) for a communication system always to derive required identifiers using an international mobile subscriber identity (IMSI) even when the UE has only a subscriber identity module. One solution is based on a table, or list, that is maintained in the UE. Another solution is based on always taking a predetermined number of digits of the IMSI. Yet another solution is based on try-and-fail signaling. In consequence, the UE does not always need to know how many digits of the IMSI are used to indicate a mobile network code, which in some situations is impossible to know anyway.

Abstract: A wireless communications system for performing data communications between a data transmission side wireless communications device and a data receiving side wireless communications device. In the system, random back-off access control is performed until a connection is established between the data transmission side wireless communications device and the data receiving side wireless communications device. Then, after the connection is established, asymmetric IFS access control is performed.

Abstract: The present invention aims at providing flexible and optimal configuration of an air interface of a transmitter in a radio system, more particularly a mobile radiotelephone system. According to the present invention, the data of a subscriber-specific control channel transmitted by the transmitter is transmitted with an adaptively modifiable frequency position or band width. The subscriber-specific control channel may include pilot symbols for channel evaluation, TCP symbols for power regulation, TFI symbols for transmitting transmission format information and other symbols, wherein the desired frequency position or band width can be individually adjusted for the individual symbol groups.

Abstract: Systems and methodologies are described that facilitate indicating and determining mobility management modes in access identifiers for wireless communications networks. Wireless devices can indicate mobility management modes to be utilized by choosing a target system and communicating the chosen system and a home system to one or more network components. The network components can infer or otherwise determine a mobility management mode based at least in part on a relationship between the target and home systems.

Abstract: Methods of providing multicast communications within a wireless communications network are provided. In an example, an access network forms a target sector group, the target sector group including at least one target sector from among a plurality of sectors, each target sector expected to have one or more access terminals belonging to a given multicast group. The access network also forms a supporting sector group, the supporting sector group including at least one supporting sector from among the plurality of sectors, each supporting sector not being a target sector and satisfying a proximity metric (e.g., being adjacent to one or more target sectors) with respect to at least one target sector. The access network transmits multicast messages associated with the given multicast group in the at least one target sector and the at least one supporting sector.

Abstract: The present invention relates to a method of controlling broadcasting in a wireless sensor network. The method includes performing broadcasting from an upper node to a lower node for a predetermined number of times, transmitting a time offset calculated according to the broadcasting from the lower node to the upper node, calculating an average of the time offsets received from at least one lower node, by the upper node and resetting the number of times of broadcasting according to the calculated average by the upper node. Accordingly, the number of times of broadcasting may be controlled according to the average of received time offsets in the wireless sensor network. In another aspect, an adjustment to the number of times of broadcasting may be received and the number of times of broadcasting may be adjusted based on an average of the received adjustments.

Abstract: Provided is a method and apparatus for transmitting and receiving data using a polarization transmission in a line-of-sight (LOS) radio communication system. An for transmitting data using a polarization transmission in a LOS radio communication system may include: an antenna unit including at least two antennas to transmit or receive via a different polarization path; a polarization data setting unit to set the different polarization path for each of the at least two antennas; and a resource allocation unit to set a transmission scheme according to a data characteristic and a service type, and to allocate a resource to be transmitted via the different polarization path according to the transmission scheme.

Abstract: An apparatus and method for estimating velocity and Doppler frequency comprising acquiring a first plurality of time-of-arrival (TOA) measurements from a first plurality of base stations at a first time; acquiring a second and a third plurality of TOA measurements from a second and third plurality of base stations at a second time and a third time; determining a plurality of line-of-sight distance measurements using the first, second and third pluralities of TOA measurements; determining a plurality of velocity estimates and a plurality of angle of arrival (AOA) estimates, using the plurality of LOS distance measurements; determining a plurality of Doppler frequency estimates using the plurality of velocity estimates and the plurality of AOA estimates; and using a processor for determining an average Doppler frequency estimate over a plurality of sectors, wherein the first, second and third pluralities of TOA measurements are acquired over the plurality of sectors.

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 radio access network (RAN) includes a first wireless access point that radiates to define a first wireless coverage area, and a second wireless access point that radiates to define a second wireless coverage area. A dual-mode wireless communication device (WCD), capable of communicating via both the first and second wireless coverage areas registers with the first wireless access point. As part of the registration process, or at some point thereafter, the first wireless access point transmits information that identifies the second wireless coverage area. The first wireless access point also transmits a WCD identifier received from the WCD during the registration process to the second access point, so that the second access point can add the WCD identifier to its whitelist. Thus, via the second wireless coverage area, the WCD can register with the second wireless coverage area.

Abstract: Techniques of emergency session handling in a communication network are provided, in which a packet switched network control function configured to handle emergency sessions established from a user equipment via a packet switched network access, e.g. an Emergency Call Session Control Function (E-CSCF), is associated with a switching control node of a circuit switched network. The switching control node is capable of handling emergency session established via a circuit switched network access, e.g. a Mobile Switching Center Server (MSC-S) of a mobile network. Handling of emergency sessions established via the packet switched network access is forwarded from the packet switched network control function to the associated switching control node.

Abstract: Legacy cyclic shift delay (CSD) for use within multiple user, multiple access, and/or MIMO wireless communications. Appropriately designed CSD is applied to communications in wireless communication systems thereby ensuring a minimized power error difference between respective portions of a packet transmitted therein. Such respective portions of the packet may be portions of the packet's preamble. For example, the first and second portions may be a legacy short training field (L-STF) and a very high throughput short training field (VHT-STF). By applying such appropriately designed CSD to a packet, a wireless communication device receiving a signal corresponding to that packet need not perform extra or very significant backoff (e.g., with respect to a signal subsequent to automatic gain control (AGC) processing) thereby simplifying signal processing and potentially also reducing a total number of effective analog to digital converter (ADC) bits needed to represent a digitally sampled version of that signal.

Abstract: A Base Station (BS) antenna in a mobile communication system is provided, in which a reflective plate has a frontal surface onto which radiation elements are attached, and at least one protector is attached onto the reflective plate, surrounding at least part of the reflective plate.

Abstract: A wireless device and method for a multiple carrier system are provided. The wireless device comprises a carrier management unit for determining at least one of a plurality of carriers as a reference carrier for monitoring a control channel and a control channel unit for monitoring the control channel over the reference carrier, wherein the carrier management unit switches the reference carrier to at least one of remaining carriers of the plurality of carriers. Accordingly, control channel traffic can be prevented from concentrating on a particular carrier, and a diversity gain can be achieved.

Abstract: A receiving method and apparatus that performs receiving processing of data transmitted at timings of a predetermined interval. The method and apparatus includes transmitting a signal indicating that a data is successfully received when the data transmitted at Mth timing according to the predetermined interval is successfully received; determining whether or not retransmission control processing is performed when the signal indicating that the data is successfully received is transmitted; and transmitting a signal indicating that the data is successfully received when the retransmission control processing is determined to be performed.

Abstract: A base station includes a radio communication unit, a resource adjustment unit, a resource division unit and a detection unit. The resource adjustment unit determines radio resources to be allocated to a downlink communication from a radio resource region shared with another base station. The resource division unit limits, to a first radio resource segment which is a part of the radio resource region, radio resources in response to estimating that communication quality of the downlink communication using the limited first radio resource segment is improved over the communication quality of the first downlink communication when using the entire range of the radio resource region that is shared with the other base station. The detection unit detects execution of resource division by the other base station for limiting radio resources used for another downlink communication between the other base station and a mobile station to a second radio resource segment.

Abstract: A non-transitory computer-readable medium can include includes instructions to perform dynamic call anchoring. The instructions can include call anchor logic programmed to determine if an outbound call leg being initiated from a mobile unit should be anchored at an anchor point based on evaluating anchoring criteria to input data. The call anchor logic can providing an anchor control signal to cause the outbound call leg to be one of (i) anchored at the anchor point or (ii) connected to a called party without anchoring at the anchor point. The anchor point can correspond to a node in an associated private network where the outbound call leg and another call leg are connected together that is outside of a service provider network for the mobile unit.

Abstract: There is provided a method for enabling a user equipment to perform a random access procedure in a wireless communication system. The method includes transmitting a random access preamble and receiving a random access response as a response to the random access preamble. The random access response is addressed by a random access identifier. The random access identifier is mapped to radio resources used for transmitting the random access preamble. The user equipment can immediately confirm its random access response and perform further efficient random access procedure.

Abstract: A wireless communication system using multiple channels is provided. An apparatus includes an allocator for, when bursts are allocated to an Accessing Terminal (AT) which utilizes a plurality of channels at the same time, allocating the same amount of the bursts to each channel in use; a generator for, when a map message to be transmitted in a primary channel of the AT is generated, generating the map message which comprises allocation information of the bursts allocated to the AT; and a transmitter for transmitting the map message in the primary channel of the AT.

Abstract: A method is provided to generate messages for wireless communications. The method includes encapsulating a first message protocol within the framework of a second message protocol and generating a message from the first message protocol and the second message protocol. The method transmits the first message protocol to an allocation space designated for the second message protocol.

Abstract: A method to transmit and receive a paging message in a wireless communication system is provided. In a method to transmit a paging message, a Base Station transmits a paging message including identifier and location information of a UE to be paged to the UE and receives a paging response message from the UE in response to the paging message. In a method to receive a paging message, the UE switches from a dedicated frequency band for a specific service to a non-dedicated frequency band during a predetermined period or paging gap and checks whether or not a paging message has been received from the Base Station over the non-dedicated frequency band.

Abstract: A method of managing baseband resources in a mobile communications network, wherein at least one interference cancellation technique in uplink is available, the method comprising the steps of: when baseband resources are demanded by a mobile user, determining whether there are free baseband resources or not, and: if there are not free baseband resources, determining whether there is at least one interference cancellation process cancelling the interference caused by at least one mobile user or not, and: if there is at least one interference cancellation process cancelling the interference caused by at least one mobile user, one mobile user is removed from said interference cancellation process.

Abstract: A base station configured for coordinating uplink resource allocation is described. The base station includes a processor and instructions stored in memory. The base station generates uplink resource allocation information for one or more wireless communication devices. The uplink resource allocation information is sent to one or more base stations. The base station allocates uplink resources based on the uplink resource allocation information. The base station sends an assignment to one or more wireless communication devices based on the uplink resource allocation information.

Abstract: A mobile station and base station are capable of communicating in a wireless network via a set of contiguous or non-contiguous sub-bands. The base station transmits a resource allocation to the mobile station. The resource allocation message includes a sub-band index (SBI) field, a number of messages field, a contiguous allocation indicator field, or a combination of these. Based on the SBI field, one or more of the number of messages field and contiguous allocation indicator field, the mobile station can identify the set of sub-bands allocated to it by the base station.

Abstract: The present invention relates to a method and arrangement for triggering a Random Access Channel (RACH) procedure for requesting uplink resources on a random access channel to a radio base station (600) scheduler based on a change in terminal (700) buffer status as compared to a Buffer Status Report BSR stored in said terminal. In a first method step, the status of the present terminal buffer content, i.e. terminal buffer data, is compared with the status of said stored buffer status report BSR. A second method step involves initiating a RACH procedure for indicating a service request to said base station scheduler upon detecting a change of buffer status at said comparison. The service request includes an indicator of the status change as a trigger for said scheduler to assign uplink resources to said terminal.

Abstract: In a cellular radio communication system including of multi-antenna base stations, to make effective use of the reduced interference in supposing the use of beam form and avoid the interference in an adjacent station even if a space multiplex and the beam form are mixed. Frequencies intended for the cell edge in an FFR are classified into frequencies for space multiplex and a frequency for beam form. Thereby, a frequency at which the interference is reduced by the beam form is fixed. A frequency intended for the cell center is in a frequency band and signals are transmitted from three base stations.

Abstract: The present invention relates to a resource allocation method of a base station. The method includes generating a packet data unit that includes a first field and a downlink control message, wherein the first field indicates whether unsolicited resource is to be allocated for an uplink control message, transmitting the generated packet data unit to the terminal, allocating resources for the uplink control message, and transmitting the allocated resources to the terminal.

Abstract: A method for transmitting and receiving uplink reference signals in a wireless communication system having multiple antennas is disclosed. The uplink reference signal transmission method includes transmitting a first reference signal sequence to a base station, and transmitting a second reference signal sequence to the base station, the second reference signal sequence being obtained by cyclically shifting the first reference signal sequence by a first cyclic delay value.

Abstract: In a system having a plurality of cells participating in a Coordinated Multi-Point (CoMP) operation, a method for transmitting Reference Signals (RSs) to User Equipment (UE) includes generating, by Base Station (BS) included in each of the plurality of cells, a subframe including RSs for a UE located in the each of the plurality of cells, and transmitting the generated subframe to the UE by the BS. The RSs include RSs for channel measurement, and RSs for data demodulation, the plurality of cells are grouped according to frequency shift values applied to the RSs for channel measurement and RS allocation patterns are determined for two cells among the plurality of cells according to a predetermined rule.

Abstract: The invention provides for a mobile radio communications device for communication within a packet data network and arranged for transmitting dedicated bearer set-up signalling to the network as part of a network attachment procedure, the device further being arranged to store the said dedicated bearer set-up signalling and to transmit or retransmit the same responsive to the success of attach complete signalling.

Abstract: The present invention relates to a broadband wireless access system, and more particularly, a ranging technique of a terminal using a legacy support frame in a mobile communication system including a legacy system and an advanced system. According to one form of an embodiment of the present invention, the ranging method of the terminal for a base station in the mobile communication system having the legacy system and the advanced system comprises the steps of: receiving secondary super frame header (S-SFH) information from the base station; determining whether a frame composition used in the mobile communication system supports the legacy system; acquiring ranging channel information for initial ranging, handover ranging, and periodical ranging from the S-SFH; and performing one or more ranging processes of the initial ranging, the handover ranging, and the periodical ranging in the base station by using the ranging channel information.

Abstract: A method and apparatus for controlling enhanced dedicated channel (E-DCH) transmissions are disclosed. An enhanced uplink medium access control (MAC-e/es) entity processes a received scheduling grant to calculate a serving grant. The MAC-e/es entity determines whether both a hybrid automatic repeat request (H-ARQ) process for scheduled data and scheduled data are available. If an H-ARQ process for scheduled data and scheduled data are available, the MAC-e/es entity determines whether a serving grant exists. The MAC-e/es entity calculates a remaining power based on maximum allowed power and restricts an E-DCH transport format combination (E-TFC) based on the remaining power. The MAC-e/es entity selects an E-TFC using the serving grant and generates a MAC-e protocol data unit. The MAC-e/es entity may process the received scheduled grant is at each transmission time interval or may store the received scheduled grant in a grant list until there is E-DCH data to transmit.

Abstract: Systems and methods are described for allocating bandwidth in a wireless network. Entry of subscriber equipment into a wireless network is detected at a base station which typically provides information used to determine geographic location of the subscriber equipment. Based on the determined location, a level of service is selected from a plurality of service levels available to a subscriber and provided. Location can be determined based on information provided by the subscriber equipment, provided by a global positioning system and/or provided by a user of the subscriber equipment. Location of the subscriber equipment can be identified with an activity of a user of the subscriber equipment, including business and non-commercial activity. Selection of the level of service may be further based upon time of day, day of week or upon a date and time of provision of the level of service.

Abstract: Methods and apparatus for using high power narrow signals, e.g., tones, for communicating transmitter information without putting the full transmission power available into the transmitted tone or tones are described. User data is transmitted in parallel with transmitter information in many embodiments with the user data being allocated more than 20% of the transmitter's maximum output power in many cases. Buy using an amount of power on the tones used to communicate transmitter information while simultaneously transmitting user data with more than 20% of the available transmission power, efficient bandwidth utilization is achieved while still ensuring a high probability that that the transmitter information signals will be received and detectable using simple energy detection techniques and without the need for timing synchronization with the transmitter to be achieved for success interpretation of the transmitter information.

Abstract: A channel switching method is provided for a base station to allocate a slot for data exchange with each of a plurality of terminals in a frequency channel that is not used by an incumbent user (IU). The method includes include transmitting a channel switching message for requesting to switch to a backup channel when a signal of the IU is sensed in the frequency channel; transmitting a beacon frame via the backup channel, wherein the beacon frame comprises allocation information about slots which are in the frequency channel and which are respectively allocated to each of the plurality of terminals; and allocating the slot for data exchange with each of the plurality of terminals to the backup channel according to the allocation information, and communicating with each of the plurality of terminals.

Abstract: To address the drawbacks of the current bandwidth requesting and allocation in the wireless broadband access network, the present invention proposes a technical solution of fast bandwidth requesting and allocation, wherein the MS sends a bandwidth allocation request message to the BS for only once, and the interactions between the BS and the MS are decreased so as to increase the efficiency of bandwidth requesting and allocation, effectively shorten the transmission waiting time of traffic data, and especially improve the support for latency-sensitive data traffic. Due to the fact that the interactions between the BS and the MS are decreased, various processing resources in the BS and the MS are spared.

Abstract: A method of configuring routers facilitates handoff of user equipment from a router to another router. The method includes configuring a virtual interface in a current router used by user equipment. The method also includes assigning a global address to the virtual interface. The global address is assigned to the virtual interface that is used to facilitate handoff of the user equipment from a current router to a new router. A system, router and user equipment are configured to implement the method.