Abstract: A mobile data network includes a breakout appliance at the edge of the mobile data network and an appliance in the core network that includes multiple enclosures. Each appliance has defined interfaces and defined commands on each interface that allow performing all needed functions on the appliances without revealing details regarding the hardware and software used to implement the appliances. An aggregate appliance in the mobile data network defines high-level commands, which each have a corresponding set of steps that are performed when the high-level command is executed. Each step causes one or more of the defined commands to be executed on the breakout appliance and/or the appliance in the core network and/or one a related software entity. This aggregated appliance allows configuring and controlling the breakout appliance and the appliance in the core network in a way that is transparent to most existing components in the mobile data network.

Abstract: A communications network (20) comprises a network coding node (24) and a network decoding node (26). A method of operating a communications network (20) comprises, at the network coding node (24), performing multi-domain network coding upon a first signal and a second signal to obtain a network coded signal. The first signal is modulated by a first modulation scheme and the second signal is modulated by a second modulation scheme. At least one of the first signal and the second signal includes information in a phase domain and information in an amplitude domain. The method further comprises transmitting the network coded signal over a link to a receiver (26) and performing multi-domain network decoding of the network coded signal as detected at the receiver (26) to obtain the second signal, the receiver knowing and using the first signal for the multi-domain network decoding.

Abstract: Methods and apparatus for communicating between a first node and a plurality of second nodes in a network, including a first uplink mode in which a first message is transmitted from multiple second nodes in sequence, and a second uplink mode in which a second message is sent from only a subset of nodes. A first receiving node evaluates communication path information based on messages received in the first uplink mode and returns this information via an acknowledgement to allow the subset to be selected. The first message from multiple nodes includes sequence information to allow the first node to acknowledge at an appropriate point in time. This is particularly applicable where multiple spatially separated antennas offer a receiver several observations of the same signal in an antenna diversity scheme.

Abstract: A video signal and an audio signal are TMDS transmitted from a source device to a sink device. Through a reserved line and a HPD line provided separately from a TMDS transmission line, an Ethernet™ signal is bidirectionally transmitted, and also, a SPDIF signal is transmitted from the sink device to the source device. The Ethernet™ signal bidirectionally transmitted between Ethernet™ transmitter/receiver circuits is differentially transmitted by an amplifier and is received by the amplifier. The SPDIF signal from a SPDIF transmitter circuit is common-mode transmitted from an adder and is received by the adder to be supplied to the SPDIF receiver circuit.

Abstract: There are disclosed a method of and system and apparatus for performing an uplink feedback, applicable to a dynamic sub-frame system, so as to avoid collision of ACK/NACK resources between a non-dynamic system and a dynamic system from occurring.

Abstract: In a high-frequency module, first, second and third duplexers are aligned and mounted on a top surface of a multilayer body. The second duplexer, the frequency band of which is spaced apart from those of the first duplexer and the third duplexer, is arranged between the first duplexer and the third duplexer, the frequency bands of which are close to each other. This causes the spacing between the first and third duplexers, the frequencies of signals transmitted and received through which are close to each other, to be increased to suppress or prevent unnecessary electromagnetic field coupling between the first and third duplexers. In addition, also with the second duplexer, the frequency band of which is spaced apart from those of the first and third duplexers and which exists between the first and third duplexers, the unnecessary electromagnetic field coupling is suppressed or prevented between the first and third duplexers.

Abstract: A learning on a weight of an adaptive array antenna which becomes necessary for a space division multiple access is carried out while a backward compatibility with a conventional standard is maintained. When a TRQ frame and a training frame for the learning are exchanged, a spoof is applied on these frames to preferably avoid collisions with a surrounding station STA4 that follows a conventional standard. Also, after the weight of the adaptive array antenna is learnt, a STA0 multiplexes and transmits the plurality of data frames addressed to a plurality of users while a wireless resource on a spatial axis is shared by the plurality of users, so that a throughput for one-to-many, that is, for the plurality of users as a whole is improved.

Abstract: A wireless communication system that includes a relay node is disclosed. The relay node supporting carrier aggregation (CA) comprises a first antenna for performing communication with a base station through a backhaul link; a plurality of backhaul link radio frequency (RF) chains connected with the first antenna, for transmitting and receiving a radio signal for backhaul link transmission; a second antenna for performing communication with a user equipment through an access link; a plurality of access link RF units connected with the second antenna, for transmitting and receiving a radio signal for access link transmission; and a control unit controlling the plurality of backhaul link RF chains and the plurality of access link RF chains to share at least a part of RF components between the backhaul link RF chains and the access link RF chains.

Abstract: A method and arrangement for estimating the current channel quality for a data transfer in a mobile network. In a sending system entity, a channel quality estimate (CQE) associated with a data transfer to a receiving system entity in a mobile communication network is adjusted. One or more probing packets are communicated 400 between the sending system entity and the receiving system entity, each probing packet being formatted according to a predefined combination of transmission parameters. Furthermore, is a Channel State Information (CSI) report received 404 from the receiving system entity, and the CQE is adjusted 406 based on the CSI report and which probing packets have been successfully communicated. By sending a sequence of probing packets, each formatted according to a predefined combination of transmission parameters, and not waiting for each packet to be acknowledged, a fast and accurate estimation of the current channel quality is achieved.

Abstract: A network node comprising at least one network interface the network node arranged to form network links to other network nodes through the or each network interface, each network link being to a neighboring one of the other network nodes, the network node arranged to determine whether data transmitted over the links to the relevant neighboring network nodes is successfully received. Should the network node make a first determination that data sent over a given network link to a neighboring node has not been successfully received, the network node temporarily disables the entry for that network link in a memory for a period of time, such that the network node does not send data to the neighboring node over the given network link during the period of time, but then subsequently re-enables the entry after the period of time has elapsed.

Abstract: Certain aspects of the present disclosure provide methods and apparatus for utilizing a physical layer (PHY) header comprising an identifier for an access point (AP) or a Basic Service Set (BSS). A station (STA) that is assigned an order in a sequential response sequence may count only frames with PHY headers that contain the correct identifier. A STA may terminate its sequential access procedure when it receives a frame with a PHY header that specifies a different identifier for the AP or BSS that assigned the sequence. In this manner, the STA may prevent partly synchronizing to an overlapping network and avoid accessing the wireless medium at the wrong time.

Abstract: Methods and apparatus for routing messages between an end node and an access node via another access node are described. Physical layer identification information is used when identifying a remote, e.g., adjacent, access node as a message destination. Thus, when a connection identifier based on one or more physical layer identifiers is available to a wireless terminal, e.g., from one or more downlink signals received from a destination access node, the wireless terminal can use the connection identifier corresponding to the destination node to route a message via an access node with which it has an established uplink connection. Such connection identifier information can be used even when other addressing information, e.g., network layer address information, associated with the destination access node, may not be available to the wireless terminal.

Abstract: A system includes a full-duplex driver to drive signals on a load. A hybrid element connected with the full-duplex driver controls a flow of transmission and receipt of the signals. A gain control element connected with the full-duplex driver tunes a transconductance of the full-duplex driver to match an impedance of the load. The controlled gain is based on a leakage voltage value of the full-duplex driver.

Abstract: An integrated duplexer based on electrical balance is described. The duplexer module includes a hybrid transformer. The hybrid transformer includes a primary coil and a secondary coil. The primary coil is coupled between an output of a power amplifier and an antenna. The secondary coil is coupled between an input of a low noise amplifier and ground. The duplexer also includes a balancing impedance that is coupled between the primary coil and the secondary coil.

Abstract: Techniques are described to provide a device and network of devices that collect distributed coordinated timestamps from distributed time counters in a multi-module or multi-integrated circuit system. The interconnect between the modules can be a single-wire or a two-wire interconnect. The modules communicatively coupled to the interconnect can use a collision-avoidance protocol for triggering the broadcasting of timestamps among the modules as well for allowing all modules to transmit their timestamps. Timestamps from multiple clocks can be transmitted by all modules and then collected and compared to produce correction factors to clock signals of each module to potentially achieve distributed clock synchronization in multiple independent modules or integrated circuits.

Abstract: Various embodiments enable a device to maintain a plurality of connections to a plurality of wireless networks simultaneously using one radio. For instance, a device can partition in time, or “time-slice”, when it transmits and receives data such that a device can maintain a plurality of connections with a plurality of networks concurrently. With the plurality of connections, the device can receive multiple copies of data. In some embodiments, a device can compare multiple copies of data and determine which copy of data is a best representation. Once a best representation has been determined, it can be selected for further usage.

Abstract: A transceiver comprising a plurality of components coupled to one another to form a transmit path and a receive path and a balun. The balun comprises a primary inductor, two pairs of secondary inductors and switched impedance modules. The primary inductor is configured to couple to the communications medium at an unbalanced port end. The two pairs of secondary inductors are each configured to electromagnetically couple with the primary inductor and each providing an associated one of two balanced, ports coupled to components forming the transmit path and the receive path. The switched impedance modules are each coupled to a corresponding one of the two pairs of secondary inductors to switchably split into a virtual open, one pair of secondary inductors associated with an inactive, one of the balanced ports and to couple another pair of secondary inductors associated with an active one of the balanced ports either to each other or to a virtual ground.

Abstract: A mobile terminal includes a main body and a wireless communication module mounted in the main body. The wireless communication module includes a first transceiver including transmit and receive terminals of a first signal, a second transceiver including transmit and receive terminals of a second signal, a first duplexer connected to the transmit terminal of the first signal and the receive terminal of the second signal to separate a transmit frequency of the first signal from a receive frequency of the second signal, and a second duplexer connected to the receive terminal of the first signal and the transmit terminal of the second signal to separate a receive frequency of the first signal from a transmit frequency of the second signal.

Abstract: Methods and apparatus permitting the coexistence of multiple communication links to distinct wireless systems in a client device are disclosed. A wireless device can interface with both a primary communications system and at least one distinct communications system by managing the coexistence of active communications with the multiple communication systems. The wireless device can initially configure communications with the primary communications system for dynamically reconfigurable time multiplexed operation having scheduled periods of inactivity. The wireless device can determine timing and scheduling of communications with the distinct communications systems and can schedule the communications with the distinct communications systems during periods of inactivity in the primary communications system. The periods of inactivity may be limited to the scheduled periods of inactivity or can include unscheduled periods of inactivity occurring during active periods of the time multiplexed operation.

Abstract: An example of a method of policing a flow in a home network such as a MoCA network may include calculating a policing period, calculating a first credit parameter, initializing a first usage variable at a beginning of the policing period, receiving a packet at an ingress node, calculating the first usage variable based on a first formula, determining whether the first usage variable is less than or equal to the first credit parameter, and making a reservation request when the first usage variable is less than or equal to the first credit parameter. The reservation request is different from an opportunistic reservation request. Examples of a system and a computer program product having instructions stored in a tangible computer-readable storage medium are also provided.

Abstract: Aspects of a method and system for extended range Ethernet link discovery signaling are provided. A local PHY may detect of one or more active twisted-pair wires in a remote PHY in extended range applications. The local PHY may determine whether to operate as a master or slave based on detected pairs. When operating as a master device, the local PHY may correct twisted-pair wire swap information received from the remote PHY before communicating an encoded link length value to the remote PHY. When operating as a slave device, the local PHY may transmit encoded twisted-pair wire swap information to the remote PHY before recovering a link length value communicated from the remote PHY. The local PHY may communicate supported operating modes based on the link length value to the remote PHY. Moreover, the local PHY may enable establishing a common full duplex operating mode with the remote PHY.

Abstract: A switch includes a connector, a port, and an indicator. The connector is configured to connect via a cable to a computer. The port is attached to the connector. While the connector is connected to the computer via the cable, the port is configured to: transmit a command signal from the switch to the computer via the cable, wherein the command signal requests identification of the port; and detect a response to the command signal as received from the computer. The indicator is connected to the port. The indicator is configured to identify the port based on an alternating pattern of the response to the command signal.

Abstract: A wireless communication apparatus includes a transmitter circuit whose transmission power is set variably, a wireless communication section having a receiver circuit, and a processing section that executes a control of the wireless communication section. The processing section sets the transmission power of the transmitter circuit to a first transmission power when it executes normal data communication and sets the transmission power of the transmitter circuit to a second transmission power smaller than the first transmission power when it executes a pairing process.

Abstract: A network device automatically detects the best protocol a network will support. The network device includes a driver for transmitting data, a receiver for receiving data, and a port operationally coupled to the driver and receiver. The network device further includes negotiation logic coupled to the driver and receiver for selecting a protocol in coordination with other network devices. The network device further includes error detection logic and backs down to a lower transmission rate if errors are detected after the initial negotiation of the selected protocol.

Abstract: A transceiver, receiver, and transmitter are provided. The transceiver may also include a programmable matching block configured to implement impedance-matching between an antenna and the receiver and/or between the antenna and the transmitter. The programmable matching block may implement the impedance-matching through a shared matching circuit block. The programmable matching block may include at least one of a programmable inductor and a programmable capacitor.

Abstract: A system for full duplex communication using a single-ended communications link is described. The system includes a first link interface configured to generate a signal for transmission via the single-ended communications link. The signal includes data encoded in a forward channel. The system also includes a second link interface configured to receive the signal from the first link interface via the single-ended communications link and modulate the signal to encode data in a reverse channel so that the signal includes the forward channel data and the reverse channel data simultaneously.

Abstract: Disclosed are methods and apparatus for reducing UE's power consumption by controlling early decoding boundary. In one aspect, a UE is configured to receive a data or voice frame from a base station. The UE selects one or more quality metrics for determining decoding boundary of the received frame and computes the selected one or more quality metrics. The UE then determines a decoding boundary for the frame based on one or more computed quality metrics. The UE then decodes the received frames at the determined decoding boundary and determines whether the decoding of the frame was successful. If the early decoding of the frame was successful, the UE may terminate reception of the frame. If the early decoding of the frame was unsuccessful, the UE may adjust the decoding boundary and decodes the frame at the adjusted boundary.

Abstract: The present invention relates to a wireless communication system. In more detail, the present invention relates to a method and device for transmitting uplink control information in a wireless communication system that supports carrier merging and operates in TDD, and the method comprises the following steps: receiving at least one or more than one PDCCH and more than one PDSCH from a plurality of downlink sub frames according to a UL-DL configuration: determining a bit number of reception response information on the at least one of more than one PDCCH and more than one PDSCH by using a value indicated by a predetermined 2-bit field in a DCI format for UL scheduling; and transmitting the reception response information through PUSCH corresponding to the DIC format.

Abstract: An automatic repeat request (ARQ) receiver is provided. The ARQ receiver comprises a receiver configured to receive a plurality of ARQ blocks. The ARQ receiver further comprises a processor configured to generate a feedback message configured to provide status of the plurality of ARQ blocks. The feedback message comprises an acknowledgement sequence number (ACK_SN) field and a flag field. The processor is configured to provide a first value in the flag field if the feedback message contains only the ACK_SN field and the flag field. The processor is also configured to provide a second value in the flag field if the feedback message contains one or more fields in addition to the ACK_SN field and the flag field.

Abstract: A packet data core network node and methods supporting packet data communication are disclosed. In one embodiment, a packet date core network node in a first core network comprises a first communication mechanism for control plane handling and mobility management, a second communication mechanism for user plane management and a mechanism for communication with a dual mode mobile terminal over a first radio network. The packet data core network node comprises or communicates with a mapping function for mapping between first radio bearers used in the first core and radio networks and second radio bearers of a type different from the type of the first radio bearers and used in a second core radio network at handover of a dual mode mobile terminal from the first core network to the second core network or vice versa. Another embodiment is a dual mode mobile terminal including such mapping function.

Abstract: The present invention provides a method and an apparatus for handling full-duplex interference. One method includes: obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs; and determining, according to the interference degree, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource among the at least two UEs. In embodiments of the present invention, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource may be classified according to an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs, thereby preventing the interference problem in the scenario of point-to-multipoint full-duplex communication as much as possible.

Abstract: A communication system, comprising a first node, a second node, a serial communication link between the first node and the second node, configured to transmit digital video data from the first node to the second node over one or more video channels of the link. The communication system further including a hybrid link between the first node and the second node, wherein the first node and the second node are configured to transmit at least one stream of data to the other through a hybrid channel over the hybrid link. In the communication system, the bandwidth of the serial communication link is scaled according to a video pixel frequency. Further, the initial locking of the serial communication link is aided by clock information delivered over the hybrid link.

Abstract: An hierarchical LSP is established to transport packets belonging to a FEC attached to an egress LSR and includes an egress LSR LSP that is common for each of the FECs attached to the egress LSR and forms a path from the ingress LSR through intermediate LSR(s) to the egress LSR. The egress LSR LSP is used when label switching packets destined for the FECs attached to the egress LSR. The hierarchical LSP also includes a unique FEC LSP for each FEC that is used by the egress LSR to identify and forward packets to that FEC. Responsive to a topology change that changes a next-hop of the ingress LSR to reach the egress LSR, the ingress LSR modifies an entry in a forwarding structure to change the next-hop for the egress LSR LSP and does not modify substantially any forwarding structure entities for the FEC LSPs.

Abstract: To comport with specific absorption rate (SAR) requirements for a transmitting multi-radio mobile device, transmissions of the multiple radios may be duplexed to ensure compliance with communication regulations. Duplexing of transmissions may occur if overall transmissions exceed a particular threshold value. The duplexing may be opportunistic or deterministic.

Abstract: Communication apparatus includes at least first and second communication interfaces, configured for digital communication with first and second nodes. At least one processor is coupled between the communication interfaces, and is configured, upon receiving a message from one of the first and second nodes that is directed to the other of the first and second nodes, to carry out the following actions: when the message contains a command, to convey the command to the other of the first and second nodes; when the message contains status information, to convey the status information to the other of the first and second nodes; when the message contains a response to a command, to discard the response; and when the message contains a query, to block the query from reaching the other of the first and second nodes.

Abstract: To secure a constant level or more of radio communication quality for each user equipment performing radio communication with a base station apparatus, and to increase the number of user equipment which the base station apparatus can accommodate under a condition of assuring the radio communication quality. In a radio communication system where there exist a base station apparatus having multiple antennas and user equipment for performing radio communication with a first antenna group including one or more of the antennas, the first antenna group is made configurable for each user equipment individually, and addition/deletion of the antenna to/from the first antenna group is performed based on the communication quality of each user equipment so that the number of antennas within the first antenna group may be minimized within a range satisfying a required value of the communication quality between the base station apparatus ad the user equipment.

Abstract: A method for allocating uplink resources using information of a Bandwidth Request (BR) indicator in a Base Station (BS), and which includes receiving a BR indicator including a station Identifier (ID), and a Quality of Service (QoS) parameter from a Mobile Station (MS); estimating uplink resources based on the BR indicator and allocating the estimated uplink resources to the MS, and if there are a plurality of connections for the MS, the estimating includes deciding one QoS parameter to be used to estimate the uplink resources among a plurality of QoS parameters corresponding to the connections; and transmitting information about the allocated uplink resources to the MS through an uplink grant message.

Abstract: According to one embodiment, a wireless communication apparatus includes a calculator and a controller. The calculator multiplies a first weighting factor by a first data signal to be transmitted on a first channel, the first weighting factor is based on a second weighting factor multiplied by a second data signal received on the first channel. The controller controls a transmission to transmit to a destination device a control signal if the first data signal transmitted to the partner device exists, and no second data signal to be transmitted on the first channel exists in the device.

Abstract: Complementary band-splitter and band-combiner devices and methods of operation of both are disclosed. Embodiments of the invention may allow wideband and narrowband functions and services to operate seamlessly by band-splitting wideband data into low-band data and high-band data. Narrowband data may include only low-band data. Wideband services may operate on both low-band and high-band data, while narrowband services may operate only on low-band data. Another embodiment may include computer-readable storage having stored thereon a computer program having a plurality of code sections executable by a processor for causing the processor to perform the foregoing.

Abstract: The high frequency circuit module includes an RFIC configured to transmit and receive a high frequency signal, a power amplifier IC configured to amplify a transmission signal outputted from the RFIC, and a duplexers configured to separate the transmission signal outputted from the power amplifier IC and inputted to an antenna and a reception signal from the antenna and inputted to the RFIC from each other, in which at least one of the RFIC and power amplifier IC is embedded in the circuit substrate, and the duplexers are disposed between the RFIC and the power amplifier IC.

Abstract: A configurable antenna structure includes a plurality of switches, a plurality of antenna components, and a configuration module. The configuration module is operable to configure the plurality of switches and the plurality of antenna components into a first antenna for receiving a multiple frequency band multiple standard (MFBMS) signal. The configuration module continues processing by identify a signal component of interest of a plurality of signal components of interest within the MFBMS signal. The configuration module continues processing by configuring the plurality of switches and the plurality of antenna components into a second antenna.

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information in a wireless communication system that supports carrier aggregation and operates in a TDD system, and to an apparatus therefor. The system comprises the steps of: generating a first set of hybrid automatic repeat request acknowledgement (HARQ-ACK) associated with a first component carrier (CC); generating a second set of HARQ-ACK associated with a second CC; and transmitting 4-bit information corresponding to the first set of HARQ-ACK and the second set of HARQ-ACK on a physical uplink shared channel (PUSCH).

Abstract: A system for establishing two-way calls between a radio and a phone system is provided. The system comprises at least one control station for exchanging messages with the radio, at least one interconnect control station, or pair of interconnect control stations, for communicating audio signals to and from the radio over a communication channel comprising respective transmit and receive frequencies, and a gateway for exchanging messages with the phone system, the control station and the at least one interconnect control station, or pair of interconnect control stations, causing the radio to switch to the communication channel whereby audio is transmitted from the phone system to the radio over the transmit frequency and audio as well as DTMF is transmitted from the radio to the phone system for activating special features of the phone system.

Abstract: A transmit signal second-order inter-modulation (IM2) canceller for a portable handset using a full duplex mode of operation (e.g., WCDMA) is used to controllably reduce IM2 introduced by a transmit signal that appears in a received signal in a receive channel of the portable handset. The transmit signal IM2 canceller includes a delay estimator and a digital signal adjuster. The delay estimator receives a first input from a receive channel and a second input from a transmit channel. The delay estimator generates an estimate of the IM2 that the transmit channel introduces in the receive channel. The digital signal adjuster removes the estimate of the IM2 before forwarding a modified receive channel signal to a baseband subsystem of the portable handset.

Abstract: A network sends to a user equipment UE a reference signal configuration, and from receiving it the UE selects a codeword identifying a cooperative multipoint CoMP transmission scheme. There is a CoMP scheme selection codebook from which the UE selects the codeword corresponding to its recommended CoMP scheme. The UE sends to the network that codeword which identifies the CoMP transmission scheme, along with the CSI feedback characterizing the CoMP transmission scheme. From that codeword which the network receives it determines the UE's assumed CoMP transmission scheme, which the network uses to determine how the CSI feedback, received from the UE, was calculated by the UE (for example, joint transmission, or dynamic point selection with or without muting, or coordinating scheduling/beamforming). The network uses this information for selecting a CoMP transmission scheme for downlink CoMP transmissions to the UE.

Abstract: A communication network applying an interference alignment scheme with a low or reduced complexity is provided. The communication network may include a plurality of transmit nodes and a plurality of receive nodes. A plurality of combinations of transmit-receive pairs may exist between the plurality of transmit nodes and the plurality of receive nodes. A communication apparatus for the communication network may select, from candidate combinations of transmit-receive pairs, a target combination to be applied with the interference alignment scheme. In particular, the communication apparatus may sequentially decrease a number of candidate combinations to select the target combination with a low complexity.

Abstract: The disclosure claims a method for measuring throughput and a Maintenance End Point (MEP). The method is applied in the Multi-Protocol Label Switching-Transport Profile (MPLS-TP) network. The method comprises the following steps: a first MEP in the MPLS-TP network performs the transmission of the data packets with a second MEP in the MPLS-TP network in a preset time period; after the preset time period, the first MEP receives measurement information fed back by the second MEP, wherein the measurement information indicates the number of data packets transmitted by the second MEP in this transmission; according to the measurement information, the first MEP judges that packet loss does not occur in this transmission of the data packets and the transmission rate meets the requirement of target precision, and then obtains the throughput of the transmission of the data packets in the transmission direction.

Abstract: A method, a device, and a system for duplex communications. Uplink and downlink frequencies are allocated in an orthogonal manner such that at one time instant a certain carrier frequency is used for uplink (downlink) transmission and at some other time instant for downlink (uplink) transmission. Correspondingly, at said one time instant a second carrier frequency is used for downlink (uplink) transmission and at said some other time instant optionally for uplink (downlink) transmission.

Abstract: When a common search space and a user equipment-specific search space overlap with each other, and bit numbers of DCI formats transmitted in the common search space and the user equipment-specific search space, respectively are the same as each other, a mobile station apparatus identifies a type of the DCI format. When the common search space and the user equipment-specific search space overlap with each other, and a bit number of a DCI format allocated in the common search space and a bit number of a DCI format allocated in the user equipment-specific search space are the same as each other, a base station apparatus does not allocate the DCI format allocated in the user equipment-specific search space in the overlapped space, and a mobile station apparatus performs blind decoding only of the DCI format allocated in the common search space in the overlapped space.

Abstract: A system for maintaining data connectivity in a satellite communications system including a satellite terminal with a ping mechanism, a satellite ground station, and a ping server, where the ping mechanism pings the ping server and restores data connectivity between the satellite terminal and the satellite ground station.