Abstract: Transmitters and receivers for use in hybrid networks capable of supporting time-reversal division multi-access communication protocols are described. Wireless access points include a wireless receiver for receiving a wireless channel probe signal from a device and a wireless transmitter capable of supporting a time-reversal division multi-access (TRDMA) protocol and at least one other wireless communication protocol. A controller is used to control the operation of the wireless transmitter. Wireless terminal devices include a wireless transmitter for transmitting a wireless channel probe signal and a wireless receiver capable of supporting a TRDMA protocol and at least one other wireless communication protocol. A controller is used to control the operation of the wireless receiver. An example of the at least one other wireless communication protocol that may be supported is OFDMA.

Abstract: Methods and systems for determining the duration of a rapid on/off state include: when a micro-cell base station is a single sub frame-level on/off micro-cell base station, determining in real-time the on/off state of the micro-cell base station in order to determine the duration of the state of the micro-cell base station; and when the micro-cell base station is a multiple sub frame-level on/off micro-cell base station, by means or receiving a notification message sent by the micro-cell base station or a macro-cell base station, determining the duration of the state of the micro-cell base station.

Abstract: The present invention discloses a method, a device, and a system for synchronizing a physical layer state, and belongs to the field of communications technologies. The present invention realizes synchronization of the physical layer state of the first feature at the network side and the terminal after the terminal updates the RRC layer configuration corresponding to the first feature.

Abstract: A method in a wireless device is disclosed. The method comprises receiving a synchronization signal from a network node, the received synchronization signal comprising a synchronization sequence, a cell ID sequence, and a frame index indication sequence. The method further comprises estimating a time offset of the received synchronization signal using the synchronization sequence, and estimating a frequency offset of the received synchronization signal using the synchronization sequence. The method further comprises detecting a cell ID of a cell associated with the network node using the estimated time offset and the estimated frequency offset, and detecting a frame number using the estimated time offset, the estimated frequency offset, and the detected cell ID of the cell associated with the network node.

Abstract: Methods and systems are provided for processing data packets in a data network using a policy based network path. A policy enforcing point receives a data packet associated with a service session and routes it toward its destination along a network path which is determined according to data packet information and one or more packet processing criteria. The data packet information may include one or more of information associated with the packet, information associated with prior packets, and information obtained from a network computer. The network path may be selected from a database of network paths. The network path may include an order list of further policy enforcing points and corresponding network application appliances. The policy enforcing point may generate a new data packet based on the data packet and the policy based network path and send the new data packet to a next policy enforcing point.

Abstract: A method of extracting, from a physical topology, a virtual topology, the physical network topology including a plurality of switches connected to each other by their ports. The method includes the following steps: distribution of the leaf switches into sub-topologies according to the characteristics of the target topology, the sub-topologies being included in the virtual topology; inclusion of the neighboring switches connected only to the switches of a same sub-topology to the sub-topology; splitting of neighboring switches connected to a first sub-topology and to a second sub-topology into two virtual switches, the first virtual switch having the ports of the neighboring switch by which it is connected to the first sub-topology, the second virtual switch having the ports of the neighboring switch by which it is connected to the second sub-topology.

Abstract: A system, method, and computer readable medium for provisioning communication services by an IP-based femtocell network is provided. Service of a user equipment may be transferred from one femtocell to another femtocell via a femtocell handoff procedure. Femtocell systems of the femtocell network perform link quality measurements and may distribute the link quality measurements to neighbor femtocells. A femtocell system may periodically evaluate the link quality with the user equipment. If an evaluation is made that the user equipment needs to be transferred to another site, the servicing femtocell site may evaluate the most recent link quality measurements received from neighboring femtocell sites and select a femtocell site for handoff. In the event that the femtocell network is deployed in an area serviced by a macrocellular network, handoff routines may provide preference for transferring the user equipment to a target femtocell system rather than a macrocell site.

Abstract: Techniques for performing listen before talk (LBT) procedures in networks having multiple channels within a shared radio frequency spectrum band are provided. These techniques may include determining a contention window size for a first LBT procedure to access a first channel of a shared radio frequency spectrum band, which may then be applied as the contention window size for a second LBT procedure to access a second channel of the shared radio frequency spectrum band. The contention window size may be determined based at least in part on one or more of a service priority or a channel type for data to be transmitted using the first channel. Performing the first LBT procedure may include determining that a recipient base station has reserved the first channel and the second channel, and performing the second LBT procedure for the second channel.

Abstract: The present invention discloses a data transmission method and apparatus. A first access point determines a current working uplink receiving beam, and broadcasts an identifier of the current working uplink receiving beam of the first access point, so that when a first station associated with the first access point determines, according to the identifier of the current working uplink receiving beam of the first access point, that a first transmitting beam at which the first station is currently working is the current working uplink receiving beam of the first access point, the first station performs data transmission with the first access point by using the first transmitting beam. The current working uplink receiving beam of the first access point and a current working uplink receiving beam of a second access point do not overlap in space.

Abstract: The invention is directed to systems, methods and computer program products for optimizing a wireless channel between a user equipment (“UE”) and a base station (“BS”). An exemplary method comprises instructing the UE to transmit a first pilot signal from a first antenna of the UE and a second pilot signal from a second antenna of the UE; estimating a first wireless channel for the first antenna and a second wireless channel for the second antenna; defining a first parameter of a first filter for the first wireless channel and a second parameter of a second filter for the second wireless channel; and transmitting the first parameter and the second parameter to the UE.

Abstract: A time domain multiplexed (TDM) routing schedule for a wireless mesh network can be generated using a Markov chain process. In particular, synchronized paths between access nodes and gateways in the mesh network can be added to, and removed from, the TDM routing schedule in an iterative fashion according to each individual state in a state progression of a Markov chain, with each state of the Markov chain mapping a different combination of synchronized paths to the TDM routing schedule. In some embodiments, transitioning between states of a Markov chain is performed according to a proportionally fair transition rate.

Abstract: Methods, systems, and computer program products for packet inspection are provided herein. The method includes the steps of receiving a first packet of a stream of packets and processing the first packet using a slow processing path. The method also includes the steps of examining a network layer or transport layer of the first packet to determine whether a protocol used by the stream of packets is relevant, and transferring subsequent packets in the stream to a fast processing path if the protocol used is not relevant. The method further includes the steps of examining an application layer of a pre-determined number of packets subsequent to the first packet to determine whether a Uniform Resource Locator (URL) field of each of the pre-determined number of packets is relevant, and transferring packets subsequent to the pre-determined number of packets to a fast processing path if the URLs are not relevant.

Abstract: The embodiments disclose a method for scheduling radio resources in a radio communication network. The method comprises obtaining two or more MAC modes to be used for scheduling radio resources; and partitioning the radio resources into multiple resource blocks, each of which associates with one of the two or more MAC modes. Each of the two or more MAC modes is used to schedule associated resource block. Meanwhile, the embodiments also disclose a method for transmitting traffic in the radio communication network. The method comprises selecting a MAC mode from a list of active MAC modes for the traffic. Each MAC mode in the list of active MAC modes associates with respective resource blocks and is used to schedule the associated resource block. The traffic is transmitted over resource scheduled by the selected MAC mode.

Abstract: Various communication systems may benefit from buffer management. For example, systems employing a packet data convergence protocol may be enhanced with network-side buffer management that is configured to manipulate transmission control protocol packet senders. A method can include receiving a plurality of packets at a buffer of a buffer manager. The method can also include manipulating, by the buffer manager, pacing of transmission control protocol senders of the packets. The method can further optionally include fair queuing the packets and/or performing flow incubation on the packets.

Abstract: For a base station or a User Equipment (UE) in communication with each other, the UE is configured by the base station for operation with an adapted Time Division Duplex (TDD) UpLink-DownLink (UL-DL) configuration. The base station configures a UE with resources for obtaining channel and interference measurements in two sets of Transmission Time Intervals (TTIs) and the UE obtains a Channel State Information (CSI) from the channel and interference measurements in the two sets of TTIs.

Abstract: Embodiments of the present invention relate to the communications field, and provide a radio link establishment method, apparatus, and system, which are used to save radio link overhead. The method includes: determining a first supporting user equipment UE; determining a first beneficial UE served by the first supporting UE; configuring synthesis layer information of the first supporting UE and first synthetic bearer information of the first supporting UE for the first supporting UE according to radio bearer information of the first beneficial UE; configuring synthesis layer information of the first beneficial UE for the first beneficial UE according to the radio bearer information of the first beneficial UE; and configuring synthesis layer information of the base station according to the radio bearer information of the first beneficial UE. The present invention is applicable to a scenario of communication between the UE and the base station.

Abstract: A method and apparatus for location determination by a WLAN station is disclosed. The method can include a first WLAN station receiving a packet sent by a second WLAN station, deriving a channel quality metric for a channel between the first WLAN station and the second WLAN station, comparing the channel quality metric to a threshold, and calculating a distance between the first WLAN station and the second WLAN station in an instance in which the channel quality metric satisfies the threshold.

Abstract: HF testing equipment for testing mobile communications terminals emulates the D2D communications capabilities of at least two mobile communications terminals. Using this equipment, interfering radio transmissions that may occur as a result of randomly selected frequency resources are replicated to test the effect thereof in a mobile communications terminal. A channel model of a transmission channel is emulated, and distortion is impressed on the data signal to be transmitted by means of the model. One baseband data signal in the frequency domain is thus obtained for each transmission channel, and this data signal contains the effects of a particular transmission channel on an undistorted data signal. The various baseband data signals are linked together, e.g., by complex multiplication, and transformed into the time domain. A receipt signal for a mobile communications terminal to be tested, produced by taking account of transmission channels and the accompanying channel distortion, is thus emulated.

Abstract: Small cell provisioning and validation may be performed, for small cells, in a small cell cluster, based on wireless cellular network connections (i.e., without requiring the use of a backhaul connection). In some implementations, the small cells may communicate with one another using direct Device-to-Device (D2D) communications. The D2D communications may be used to further enhance the network connectivity (i.e., to the cellular network and the OAM server) and to transmit test traffic during performance of the validation functions.

Abstract: A bus control device (401a) includes a storage (408) that stores a transmission order of data pieces transmitted from a first node (402) to each second node (403); a sorter (413) that receives data pieces transferred from each second node toward the first node and refers to a predefined sorting rule to determine a sorting destination of each data piece; a buffer (409) that stores the sorted data pieces while classifying the sorted data pieces by the second node as a transmission source; and a connection controller (410) that refers to change permission/rejection information indicating whether or not an order is permitted to be changed while the data piece is transferred from each second node to the first node, and transmits data pieces, the order of which is not changed, from the buffer to the first node in the same order as the transmission order stored on the storage.