Abstract: The present disclosure includes systems and methods for operating a wireless communication system in multiple modes. The system is configured in a first mode when a transmission interference in a receiver of a wireless device is below a first threshold. The system is configured in one or more intermediate modes when the transmission interference is above the first threshold and below a second threshold. The system is configured in a second mode when the transmission interference is above the second threshold. The one or more intermediate modes activate interference management processes and the wireless device transmits data and receives data simultaneously. In some embodiments, transmission interference may be based on an SINR measurement.

Abstract: A wireless station includes a transceiver configured to wirelessly receive networking frames over a wireless medium, and a channel access counter configured to track a time period and signal that the time period has expired. The time period begins in response to a first networking frame of the networking frames. The first networking frame is addressed to a receiver other than the wireless station. A length of the time period is based on a first length in response to a type of the first networking frame being an acknowledgment frame type. The length of the time period is based on a second length in response to the type of the first networking frame being a data frame type. The transceiver is configured to wait to access the wireless medium until after the channel access counter signals that the time period has expired.

Abstract: A video processing system includes a video encoder that encodes a video stream into an independent video layer stream and a first dependent video layer stream based on a motion vector data or grayscale and color data.

Abstract: Some embodiments provide a method for a first managed forwarding element that implements a logical network. The method receives a packet from a second managed forwarding element. The first packet has an initial set of characteristics defining a first connection between a source machine connected to the second managed forwarding element and a destination machine connected to the first managed forwarding element. The method determines whether a second connection exists with the initial set of characteristics between a different machine connected to a third managed forwarding element and the destination machine. When a second connection exists with the initial set of characteristics, the method modifies at least one characteristic of the packet such that the modified packet does not have the same set of characteristics. The method delivers the modified packet to the destination machine.

Abstract: Control channels can benefit from a search space arrangement. For example, an evolved or enhanced physical downlink control channel (E-PDCCH) in the long term evolution advanced (LTE-A) physical layer can benefit in its design from a search space arrangement. A method can include indicating a control channel search space by a pair of parameters. The pair of parameters can include a physical resource block index and an explicit control channel element index. The method can also include transmitting on the control channel within the search space.

Abstract: A control method in a mobile communication system, that includes configuring a discard timer corresponding to a service data unit (SDU) for discarding the SDU according to a value of the discard timer that indicates a time elapsed since the discard timer started at reception of the SDU; when a handover is performed, maintaining the value of the discard timer corresponding to the SDU and taking over the elapsed time of the SDU; and discarding the corresponding SDU when the value of the discard timer reaches a given value.

Abstract: A wireless communication system and a method for detecting downlink receiving power in the system are disclosed. N cells in the system respectively transmit data to at least one receiving terminal via N resource blocks using the same time-frequency resources; multiple channel state information reference signals (CSI-RSs) of a corresponding cell are set in each resource block, and orthogonality is maintained among the CSI-RSs of all the cells, wherein N is an integer greater than 1. Said method includes: an additional demodulation reference signal (DM-RS) used for indicating a receiving power is set in a puncture position in the resource block of the first cell which corresponds to a CSI-RS set in a resource block of another cell; and the receiving power of said first cell is detected according to said additional DM-RS. By using said method, the receiving power of a single cell in N cells can be detected, and the system overhead is not increased.

Abstract: The present invention relates to wireless communication, and more specifically, to a method and a device for allocating group resources for a M2M device to which machine to machine (M2M) communication is applied in a wireless communication system.

Abstract: Provided is a multimedia data generation method which includes allocating one or more pieces of image object information to each of a plurality of nodes, generating a scene tree by linking nodes according to correlation between the object information allocated to each node, and adding an event execution level attribute to each node, wherein the event execution level attribute determines whether to execute an event by using the image object information allocated to each node, thereby generating multimedia data in which the added event execution level attribute is represented with a scene description language and recorded on an area of a scene descriptor.

Abstract: A method of mapping symbols of a physical control format indicator channel (PCFICH) is described. A start position of a resource element to map the symbols for the PCFICH is determined by flooring a value, obtained by multiplying the number of resource blocks by a variable proportional to a symbol index for the PCFICH and then dividing the multiplied result by 2, wherein the resource blocks are transmitted in downlink. The symbols are mapped in the start position. Therefore, a problem of wasting resource elements or not being able to implement mapping can be solved by applying a simple mapping rule while mapping symbols of the PCFICH.

Abstract: A Hardware Abstraction Layer (HAL) for a target computing device that is equipped with an Application Specific Integrated Circuit (ASIC) or other hardware element that provides forwarding and/or switching capability is used to analyze an abstract candidate device model. The abstract candidate device model is received from a controller and specifies intended forwarding behavior for the target device. The HAL analyzes the abstract candidate device model based on its knowledge of the architecture of the ASIC or other hardware element providing forwarding or switching capability to the target device. If the behavior is supported by the target device's architecture, the model may be implemented in a specific manner supported by that architecture and used to control forwarding behavior on the target device.

Abstract: A method and device for preventing a roaming user terminal from re-authentication are provided. The method includes: when Virtual Local Area Network (VLAN) of a roaming user terminal changes, change information of the roaming user terminal is reported to a Broadband Remote Access Server (BRAS) via an Access Controller (AC) and the BRAS reports modified information of the roaming user terminal to an Authentication, Authorization, Accounting server (AAA server).

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and device for transmitting and receiving a downlink control channel for controlling inter-cell interference in a wireless communication system. An embodiment of the present invention provides a method for transmitting a downlink control channel from a base station to a terminal, and the method may comprise: a step of determining whether a downlink subframe is of a first type or a second type; and a step in which if the downlink subframe is of the first type, the number of OFDM symbols for transmitting the downlink control channel is set to a preset value (N), and the downlink control channel is transmitted using N OFDM symbols.

Abstract: Embodiments of the present invention relate to a method and device for handling a failure of a mobility management device in an ISR activated scenario. The method includes: detecting, by a serving gateway, a failure of a first mobility management device; and when the serving gateway receives downlink user plane or control plane data of a user equipment, paging, by the serving gateway, the user equipment using a downlink data notification message including identity information of the user equipment, in a first radio access network connected to the first mobility management device.

Abstract: A provided apparatus is caused to direct establishment of a connection of the apparatus with a core network via a wide area radio access network (RAN), where the core network is coupled to an external network. The apparatus is also caused to select or receive selection of a local area network that is coupled to the same or different external network via one or more local gateways (L-GWs). The apparatus is caused to request selection of a L-GW of the one or more L-GWs from the core network via the wide area RAN, and in response, receive an identity of a selected L-GW. Further, the apparatus is caused to direct contact with the selected L-GW based on the identity, and establishment of a connection of the apparatus with the selected L-GW. The apparatus may thereby be connected to the external network via the local area network and selected L-GW.

Abstract: Systems and methodologies are described that facilitate providing flow control feedback for controlling downlink data transmission rates. Various schemes can be utilized to send the flow control feedback from an access terminal to a base station. For example, a control PDU (e.g., MAC control PDU, PDCP control PDU) can be generated based upon a level of resource utilization of the access terminal, and sent to the base station for controlling the downlink data transmission rate. Following this example, a type of control PDU, a value included within the control PDU, etc. can be selected as a function of the level of resource utilization. By way of another illustration, a CQI report that includes a value selected as a function of the level of resource utilization associated with the access terminal can be generated and transmitted to the base station for controlling the downlink data transmission rate.

Abstract: In a data transfer method and system for networks having gateway-mediated asymmetric transport, data and feedback channels are established between sender and receiver, along with a gateway feedback channel between gateway and sender. Cohorts of datagrams are transformed using fault-tolerant coding to create chapters whose size correspond to the asymmetric transport's timing. The sender transmits chapters in chunks at a rate to keep the gateway at an optimum fill for maximal throughput without transmit-end packet drops. The receiver reconstructs complete cohorts of original datagrams from a received subset of the transformed datagrams. The receiver acknowledges successfully recovered cohorts and identifies missing or corrupt datagrams of a chapter whenever recovery is unsuccessful. The sender resends sufficient lost datagrams to allow cohort recovery. The sender self-tunes its transmission rate based upon gateway fill, network latency and datagram loss rate to keep datagram loss rate below an upper bound.

Abstract: A terminal and a scan method thereof are disclosed in the present invention. The method includes that: a terminal receiving, after accessing a network, a downlink channel descriptor message, and acquiring a scan triggering period table carried in the downlink channel descriptor message; and the terminal performing periodic scan according to the scan triggering period table. According to the technical solution of the present invention, the efficiency for the terminal scanning in different scenes can be effectively improved, and therefore the performance of the system is improved.

Abstract: The present invention relates to a method and terminal apparatus which involve transmitting a sounding reference signal (SRS)-triggering-based SRS in a wireless communication system. The terminal apparatus of the present invention comprises a receiver which receives, from a base station, an SRS-triggering indicator for triggering an SRS transmission; and a transmitter which transmits the SRS via a preconfigured uplink subframe in accordance with the SRS-triggering indicator.

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in which a system timing is estimated, derived from timing of one or more cells, a timing offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the timing offsets. In addition, a method, an apparatus, and a computer program product for wireless communication are provided in which a carrier frequency is estimated, derived from a frequency of one or more cells, a frequency offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the frequency offsets.