Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for calculating an amount of data available for transmission in the wireless communication system, the method comprising: receiving ratio for calculating amount of Data Available for Transmission (DAT) in a PDCP (Packet Data Convergence Protocol) entity; calculating an amount of DAT when data is arrived in the PDCP entity; and setting a first amount of DAT as the calculated amount of DAT and a second amount of DAT as ‘zero’, if the calculated amount of DAT is less than a threshold, wherein the first amount of DAT is for the first BS and the second amount of DAT is for the second BS.

Abstract: A wireless communication system and method for use with radio access network with a plurality of client devices are disclosed. The system includes a scheduling controller including a processor configured to receive session information from the radio access network for each client device. The session information includes a utility associated with each session. The scheduling controller is configured to generate a schedule for a spectrum valley based on the session information.

Abstract: Embodiments include apparatuses, methods, and systems to reduce handover latency in an integrated wireless local area network (WLAN) and wireless cellular network. In embodiments, a user equipment (UE) may communicate with a packet data network (PDN) gateway (P-GW) via the WLAN and/or the wireless cellular network. Various embodiments may provide monitoring circuitry to monitor one or more PDN connections between the P-GW and the UE over the WLAN, determine that the UE should be in a radio resource control (RRC)-Connected mode based on the monitored one or more PDN connections, and transmit an inactivity timer reconfiguration (ITR) message to request suspension of an inactivity timer associated with the UE. The monitoring circuitry may be included in the P-GW, a WLAN gateway, the UE, and/or another component of the network.

Abstract: A method and system for managing quantity of carriers to aggregate together in carrier aggregation service, based at least in part on consideration of the type of content that will be communicated to or from the user equipment device (UE) at issue. A base station serving the UE may determine a type of content that will be communicated between the base station and the UE and, based at least on the determined type of content, may decide whether to apply carrier aggregation and, when the decision is to apply carrier aggregation, determine, based at least on the determined type of content, how many component carriers to aggregate together in the carrier aggregation service of the UE. The base station may then modify an air interface connection with the UE to encompass the determined number of component carriers.

Abstract: A method and system for selectively activating and deactivating secondary cells in a wireless communication system are disclosed. According to one aspect, the invention provides a finite state machine having a plurality of states facilitating secondary cell activation and deactivation decisions. The states of the finite state machine include a deactivated state and an activated state. In the deactivated state, a secondary cell is deactivated and a media access control element, MAC CE, for deactivation is sent to the UE. The base station in the deactivated state is not allocating resources for maintaining transmission on the secondary cell. In the activated state, the secondary cell is active and a MAC CE for activation is sent to the UE. In the activated state, the base station is ready to transmit on the secondary cell.

Abstract: A method and apparatus for requesting and allocating bandwidth in a broadband wireless communication system. The method and apparatus includes a combination of techniques that allow a plurality of CPEs to communicate their bandwidth request messages to respective base stations. One technique includes a “polling” method whereby a base station polls CPEs individually or in groups and allocates bandwidth specifically for the purpose of allowing the CPEs to respond with bandwidth requests. The polling of the CPEs by the base station may be in response to a CPE setting a “poll-me bit” or, alternatively, it may be periodic. Another technique comprises “piggybacking” bandwidth requests on bandwidth already allocated to a CPE. Currently active CPEs request bandwidth using unused portions of uplink bandwidth that is already allocated to the CPE. The CPE is responsible for distributing the allocated uplink bandwidth in a manner that accommodates the services provided by the CPE.

Abstract: A method for selecting at least one parameter for downlink data transmission with a mobile user equipment. The method is executable by a wireless communication base station having multiple antennas configured to communicate wirelessly with the mobile user equipment. The method receives an uplink probing signal from the mobile user equipment. The method determines a plurality of angles of arrival for a corresponding plurality of paths between the mobile user equipment and the multiple antennas. The method transmits a plurality of downlink probing signals directionally toward corresponding angles of arrival in the plurality of angles of arrival. Each downlink probing signal is a virtual antenna port with respect to the mobile user equipment. The method receives channel state information. The method composes at least one of a rank indicator (RI), precoding matrix indicator (PMI), or modulating and coding scheme (MCS) for downlink data transmission to the mobile user equipment.

Abstract: A method includes transmitting a random access preamble, receiving a random access response as a response of the random access preamble, wherein the random access response comprises an uplink resource assignment and a request for transmission of a Channel Quality Indicator (CQI), and transmitting the CQI in the uplink resource assignment.

Abstract: A base station serves as a second base station in a communication system including a first base station corresponding to a first cell and the second base station corresponding to a second cell smaller than a first area of the first cell. At least part of the second cell overlaps the first area. The base station includes: a calculation unit that, based on a first channel estimation value between a first terminal connected to the first base station through the first cell and the second base station as well as a second channel estimation value between a second terminal connected to the second base station through the second cell and the second base station, calculates an indicator based on a phase relationship between the first channel estimation value and the second channel estimation value; and a scheduler that determines whether to include a first candidate in a second candidate.

Abstract: A method and apparatus of performing discontinuous reception (DRX) and downlink inter-frequency and inter-radio access technology (RAT) measurements in CELL_FACH state are disclosed. While in DRX mode, a wireless transmit/receive unite (WTRU) may perform inter-frequency and inter-RAT measurements in a measurement occasion that fall into a DRX period. The WTRU may take the measurements on first predetermined number of frame in which a DRX frame would coincide after a last reception frame if DRX operation was ongoing. The WTRU may periodically wake up for downlink reception in CELL_FACH state in accordance with common DRX pattern that is common to all WTRUs in a cell or may wake up from DRX upon reception of the order and receiving a common traffic.

Abstract: A method for transmitting a reference signal by a user equipment (UE) in a wireless communication system. The UE generates an uplink reference signal in a subframe comprising first, second, third, fourth, fifth, sixth and seventh orthogonal frequency division multiplexing (OFDM) symbols in time domain and a plurality of subcarriers in frequency domain. The UE transmits the uplink reference signal to a base station in the third, fourth and fifth OFDM symbols. The transmitted uplink reference signal is hopped in the frequency domain, based on a cell specific hopping parameter.

Abstract: Wi-Fi services multicast to a subnet in a software-defined network (SDN) are extended. An SDN controller centrally monitors a data plane of a Wi-Fi network. Advertisements for services within a first subnet by an advertising station are forwarded to the SDN controller. Parameters of the service of the advertising station are extracted for storage by performing deep packet inspection on the one or more packets. Queries for services within a second subnet by a querying station are also forwarded to the SDN controller. Parameters of the service of the querying station are extracted for storage by performing deep packet inspection on the one or more packets. The query for service to the advertisement matches responsive to the advertisement parameters compared to the query parameters. Responsive to matching, a set of connection parameters necessary for the querying station at the second subnet to connect to the advertising station at the first subnet is sent.

Abstract: Reliable multicast delivery in wireless communication, even when a WS doesn't know its AP, is determined at the AP without the sending device. Multicast packets are received at each AP having destinations. Without altering those packets, the AP encapsulates them in an A-MSDU packet. Each A-MSDU packet is sent individually to each destination, and might encapsulate more than one multicast packet. Destinations might receive two streaming messages faster than if sent separately. AP's might choose a 1st multiple of multicast packets from a 1st source, a 2nd, different, multiple of multicast packets from a 2nd source, and a single multicast packet from a 3rd source. Individualized optimization of transmission parameters for each A-MSDU packet and each multicast packet therein. Individualized optimization of transmission parameters for the A-MSDU packet for each destination. The AP collectively optimizes delivery of distinct multicast packets to different destinations.

Abstract: Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, a relay provides relay services for network communication between a first station and a second station. In one aspect, the relay may receive data packets sent to the second station by the first station, and retransmit the data packets if it determines that the second station has not acknowledged the data packet. In one other aspect, the first station may be configured to transmit a relay-able acknowledgement that includes a sequence number identifying data being acknowledged. The relay may be configured to receive a transmission of a first relay-able acknowledgement by the first station and retransmit a second relay-able acknowledgement if it determines the second station did not receive the first relay-able acknowledgement sent by the first station. In some aspects, the second station is an access point.

Abstract: Examples of a system and method for adaptively tuning a radio frequency (RF) front-end are generally described herein. In some examples, the frequency of a transmit signal of RF front-end circuitry is swept in at least a part of the RF transmit band. RF power in a receiver is detected as a function of the RF frequency of the transmit signal to determine a location of at least one tunable notch or other band stop element in the frequency domain. Information from the detected RF power is determined as a function of the RF frequency of the transmit signal. The RF front-end circuitry is adjusted to a selected frequency response using the determined information.

Abstract: Systems and methods for improving data transmission rates in communication networks are disclosed. In an 802.11 wireless communication network, where a source node of the wireless network transmits TCP data to a destination node of the wireless network, the destination node does not transmit TCP acknowledgments (ACKs) for the TCP data if 802.11 ACKs indicate that the destination node received the TCP data. If a source outside the wireless network transmits TCP data to the destination node within the wireless network through an intermediate device, such as an access point, the destination node suppresses transmitting TCP ACKs. The intermediate device transmits TCP ACKs as proxy for the destination node to the source. The intermediate device also suppresses TCP ACKs where a source node within the wireless network sends the TCP data to a destination node outside of the wireless network.

Abstract: The present application describes a method for characterizing a self-interference channel of a frequency division duplex transceiver including a transmitter and a receiver. The method includes transmitting, from a transmitter of a frequency division duplex transceiver in a transmission band, a transmission signal including a message signal and a swept tone that changes frequency from below an upper edge to above a lower edge of a reception band of a receiver, the self-interference channel being defined between the transmitter and the receiver of the frequency division duplex transceiver, such that at least a portion of the message signal leaks into a signal received the receiver, determining, at an infinite impulse response (IIR) filter of the receiver, an infinite impulse response of the self-interference channel based upon a reception of the swept tone swept at each frequency in the reception band, and estimating the self-interference channel, based upon the infinite impulse response.

Abstract: A recovery network may provide communication recovery and backup services to an organization. The organization may comprise an internal network, such as Internet Protocol (IP) network. An alternative communication path communicatively couples communication devices of the organization to a public communication network. A recovery application operates on devices of the organization. The recovery network receives periodic availability indicators from devices within the organization. The recovery network identifies a communication endpoint of the intended recipient of a communication request using the availability indicators.

Abstract: A method, apparatus, and computer program for scanning for a secondary cell are provided. According to an embodiment, an apparatus operates in a primary cell of a cellular communication system, wherein the primary cell includes a primary component carrier associated with a bandwidth. The apparatus synchronizes scanning for a candidate secondary cell to radio transmissions in the primary cell, the secondary cell including a secondary component carrier expanding bandwidth beyond the bandwidth of the primary cell.

Abstract: Systems and methods for multi-channel signal processing by a series of single processing core logic circuitries in time-slicing. A first logic circuitry is configured to process multiple data streams from multiple channels in a first cycle-based time-sliced schedule. A time slice in the first cycle-based time-sliced schedule comprises a predetermined number of clock cycles allocated to a corresponding data stream. A second logic circuitry is coupled to the first logic circuitry and configured to process the data streams in a first fragment-based time-sliced schedule. A time slice in the first fragment-based time-sliced schedule is determined based on a predetermined boundary associated with the data fragment and is allocated to process a data fragment of the data streams.