Class / Patent application number | Description | Number of patent applications / Date published |
370296000 | Convertible to half duplex | 31 |
20080240004 | CONTROLLING A JITTER BUFFER - A method and a network device for controlling a jitter buffer are disclosed. The method comprises providing a jitter buffer to counter the effect of jitter in a communication channel and comprises determining a duplex mode of the communication channel. The method further comprises adjusting parameters of the jitter buffer in response to determination of the duplex mode, half-duplex mode and full-duplex mode respectively having respective sets of parameters associated therewith. A network device comprises a jitter buffer to counter the effect of jitter in a communication channel and a controller operable to determine a duplex mode of the communication channel and to adjust parameters of the jitter buffer in response to determination of the duplex mode, half-duplex mode and full-duplex mode having respective sets of parameters associated therewith. | 10-02-2008 |
20080291852 | METHOD FOR OPTIMIZING NEAR FIELD LINKS - In a Near Field Communications (NFC) link, the data link turn-around time is adjusted to optimize battery use while maximizing the data throughput. A receiving device immediately transmits any pending high priority control or data messages in its own queue in response to a message from the sending device, subject to the flow control status of the sending device. The value of the delay time before sending a SYMM primitive is selected in accordance with the types of link frames recently received. | 11-27-2008 |
20090028076 | COMMUNICATION PROGRAM AND COMMUNICATION TERMINAL - The present invention aims at permitting users of the equipments to exchange mutually their own wills easily in a PoC service not to take a floor. In a PoC service that attains a half duplex talk session using a packet communication between the plurality of equipments via a PoC server, a PoC server | 01-29-2009 |
20090109882 | PUSH-TO-COMMUNICATE SESSION ASSOCIATING | 04-30-2009 |
20090122732 | Half-duplex multicast distribution tree construction - In one embodiment, a method includes sending upstream to a nearest neighbor node, by a Client Label Switched Router (LSR), a downstream label map message of a Server-Forwarding Equivalence Class type (S-FEC-DOWN). In response to the S-FEC-DOWN, a downstream forwarding state from the nearest neighbor node to the Client LSR is established. An upstream label map message of a Client-Forwarding Equivalence Class type (C-FEC UP) is received from the nearest neighbor node. An upstream forwarding state corresponding to the C-FEC UP is then established by the Client LSR. | 05-14-2009 |
20090135748 | Adaptive Scheduling for Half-Duplex Wireless Terminals - Adaptation is introduced into allocation of uplink and downlink subframes in wireless communication systems that support full-duplex and half-duplex mobile terminals, thus reducing interference between mobile terminals. In an exemplary method for allocating uplink and downlink timeslots in a wireless communication system supporting full-duplex and half-duplex mobile terminals, a base station determines that a mobile terminal is capable of only half-duplex operation and allocates one or more uplink subframes and one or more downlink subframes to the first mobile terminal, for each of a plurality of frames, so that none of the allocated uplink subframes overlaps in time with an allocated downlink subframe. The allocation of uplink subframes and downlink subframes is varied between consecutive ones in at least a first series of frames according to a pre-determined pattern. In some embodiments, the method further includes transmitting an allocation message to the first mobile terminal, designating the pre-determined pattern. | 05-28-2009 |
20090257367 | Half duplex digital communications system and control means - A half duplex digital communications system and control means providing a data interface to a plurality of radio transceivers such as between a personal computer or other information processing device to one or more radio transmitter/receiver systems having a serial data interface in a manner that provides control of the radio and means to send and receive data via the radio without regard to the characteristics of the radio or its serial interface. A common control protocol is employed to control the radio transmitter/receiver device in a generic manner through software implementation, allowing compatibility with future data systems. | 10-15-2009 |
20100054165 | DATA TRASNMITTING AND RECEIVING METHOD AND COMMUNICATION SYSTEM THEREOF - A data transmitting and receiving method and a communication system using the method are provided. A transmitting node generates a plurality of data packets by dividing a large-sized data and transmits the data packets to a receiving node at one time, and after that, re-transmits only the non-received data packet(s) which is not received by the receiving node. Accordingly, the number of response packets which the receiving node is to transmit can be reduced, so that it is possible to increase transmission rate. | 03-04-2010 |
20100061281 | ROUTING PROTOCOL SUPPORT FOR HALF DUPLEX VIRTUAL ROUTING AND FORWARDING INSTANCE - A method, apparatus and computer program product for providing dynamic routing support for Half-Duplex Virtual Routing and Forwarding (HDVRF) environments. The method, apparatus and computer program function to configure a forwarding Virtual Routing and Forwarding (VRF) table for a router with information to forward incoming packets to a central location within a hub and spoke environment. The method, apparatus and computer program also function to populate a routing Virtual Routing and Forwarding (VRF) table for the router with routing information received from ingress interfaces of the router. The method, apparatus and computer program function further forwards packets received on egress interfaces of the router according to the forwarding VRF table. | 03-11-2010 |
20100202329 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION METHOD - In a communication system for performing communication while switching between full-duplex communication and half-duplex communication, a slave | 08-12-2010 |
20100208630 | HALF-DUPLEX COMMUNICATION SYSTEM, HALF-DUPLEX COMMUNICATION APPARATUS, COMMUNICATION CONTENT CONFIRMING METHOD, AND PROGRAM THEREOF - A half-duplex communication system that allows a user terminal to confirm past communication contents even during a series of half-duplex communications is provided. The system includes a communication record database in which all communication contents of half-duplex communications are stored together with identifiers thereof. A half-duplex communication device for controlling half-duplex communications includes a communication record control device which receives a communication content, transmits the communication content together with the identifier thereof to the communication record database so as to store it therein, and reads out the communication record therein. In response to a communication record readout request, the half-duplex communication device reads out a communication record in place of transmitting the communication content to a user terminal. | 08-19-2010 |
20100246458 | CONTROLLING POWER IN A SPREAD SPECTRUM SYSTEM - A technique and system is disclosed for controlling power in a spread spectrum system. A fast slot of a frame is received where the frame is divided into a number of fast slots. The received power is measured on the fast slot. A second fast slot is transmitted at a second time with a transmit power setting and a variable spreading factor. The transmit power setting and the variable spreading factor is adjusted based on the received power. The variable spreading factor affects the total number of fast slots that are transmitted. | 09-30-2010 |
20110103275 | HIGH SPEED DATA TRANSMISSION METHOD AND CORRESPONDING DEVICES - This invention relates to a method for the transmission using the half-duplex mode of a data signal from a first transmission/reception device to a second transmission/reception device, called the remote device, comprising a logical coding step in which at least two distinct transmission times are associated with two respective statuses of the data signal to transmit. The method is characterised in that it comprises the generation by the first device of a signal ( | 05-05-2011 |
20110305173 | PHASE AND FREQUENCY RE-LOCK IN SYNCHRONOUS ETHERNET DEVICES - A first PHY may be coupled to a second PHY via a network link. The first PHY may transition from a role of timing master for the network link to a role of timing slave for the network link. During a first time interval subsequent to the transition, the PHYs may communicate half-duplex over the link while the first PHY synchronizes to a transmit clock of the second PHY. During a second time interval, the PHYs may communicate full-duplex while the second Ethernet PHY synchronizes to a transmit clock of the first PHY. Also during the second time interval, the first PHY may determine that the first PHY and the second PHY are synchronized. Subsequent to the determination, the PHYs may begin full-duplex communication of data on the network link. | 12-15-2011 |
20120026922 | Method And System For Simplex Or Duplex Transmission Mode Of An Ethernet Link In An Energy Efficient Network - Ethernet link partners coupled via an Ethernet link that comprises a plurality of channels are operable to transmit and receive at different maximum data rates on different channels. Based on link conditions, a link partner may negotiate a transmission rate and/or accept or reject a reception rate. Based on link conditions, a first link partner is configured to communicate in simplex mode at a first rate via at least one channel and receive in simplex mode at a second rate via at least one channel. The configured data rates are less than or equal to the respective maximum rates or a rate of zero. Link conditions comprise link load or utilization, current or past conditions, PER, BER and SNR. Power may be lowered for transmitters, receivers, near-end and/or far end cross talk cancellers, hybrids, echo cancellers and other components. Channels may be transitioned from duplex mode to simplex. | 02-02-2012 |
20120076057 | Duplex Mismatch Detection - An apparatus including a port to transmit first frames and receive second frames over a communication channel, the port including a collision detect circuit and a duplex mismatch circuit. The collision detect circuit detects collisions on the communication channel between the first frames and the second frames. The duplex mismatch circuit declares a duplex mismatch when the communication channel was established without attempting auto-negotiation, the port is in a half-duplex mode, and the collision detect circuit detects a very late collision involving one of the first frames. The very late collision occurs after a predetermined amount of data has been transmitted in the one of the first frames. The duplex mismatch indicates that a full-duplex mode is used with respect to the second frames. | 03-29-2012 |
20120188921 | PERFORMING WIRELSS COMMUNICATIONS IN HALF-DUPLEX AND FULL-DUPLEX MODES - In a wireless communication system including at least a plurality of wireless communication terminal apparatuses each including first and second wireless communication apparatuses, the first wireless communication apparatus includes first and second wireless communication parts. The first wireless communication part transceives digital data in a half-duplex communication mode via a first wireless communication path, and the second wireless communication part transceives digital data in a full-duplex communication mode via a second wireless communication path. A first control part controls transmission of digital data for the first and second wireless communication parts. The second wireless communication apparatus includes third and fourth wireless communication parts. The first control part controls the first and second wireless communication parts to transmit identical digital data from both of the first and second wireless communication parts when instructing the second wireless communication apparatus to transmit digital data. | 07-26-2012 |
20120287829 | Adaptive pause time energy efficient ethernet PHY - An energy efficient Ethernet physical layer (PHY) device including an EEE control module configured to generate a control signal to transition the PHY device into a low power consumption mode based an operating condition, and a pause frame generator module responsive to the control signals to generate a pause frame. The pause frame generator module is configured to send the pause frame to a media access control (MAC) device to reduce an incoming flow of data packets from the MAC device to the PHY device for a pause time duration. In operation, the pause frame generator module generates the pause frame including a pause time indicating the length of time for the PHY device to be in the low power consumption mode. The value of the pause time for each pause frame is determined adaptively based on the amount of data traffic to be transmitted from the PHY device. | 11-15-2012 |
20130170410 | SYSTEM AND METHOD OF EXTENDING AN ETHERNET SIGNAL - In one exemplary embodiment, an Ethernet system includes an Ethernet networking device coupled with an edge device and at least one destination device via an Ethernet cable. The Ethernet networking device includes an equalizing interface. The Ethernet system also contains an equalizing interface including an equalizing receiver and an equalizing transmitter. The equalizing receiver provides a gain to a first signal received from the edge device that is substantially a loss value of the first signal in the Ethernet cable. The equalizing transmitter provides a gain to a second signal transmitted to the edge device that is substantially a loss value of the first signal in the Ethernet cable. The Ethernet system also includes an edge device. | 07-04-2013 |
20140010130 | System and Method for Energy Efficient Ethernet with Asymmetric Traffic Profiles - System and method for energy efficient Ethernet with asymmetric traffic profiles. A low power mode such as a low power idle mode is typically leveraged when both direction of a link do not have data traffic to transmit. Where only one direction of a link has data traffic to transmit, a physical layer device can transition from a full duplex mode to a simplex mode to produce energy savings (e.g., disabling cancellation circuitry). | 01-09-2014 |
20140016526 | Methods and Apparatus For Half Duplex Scheduling - Systems and techniques are described for scheduling communication by half-duplex devices. One or more half-duplex devices informs a base station that it is capable only of half-duplex operation. For each such device, the base station configures a transmit/receive pattern comprising sequences of uplink and downlink subframes and applies the pattern to the device. The half-duplex device may receive during a downlink subframe and may transmit during an uplink subframe. Uplink and downlink subframes within a pattern are separated by an offset based at least in part on a number of hybrid automatic repeat request processes. | 01-16-2014 |
20140376427 | DYNAMICALLY ADJUSTING FRAME MTU TO SUPPORT LOW-LATENCY COMMUNICATION - In one embodiment, a sender in a shared-communication network determines whether a pending frame is low-latency or high-throughput, and sets a maximum transmission unit (MTU) of the pending frame as a first MTU in response to a low-latency frame and a longer second MTU in response to a high-throughput frame. In another embodiment, a receiver receives a data frame from a sender according to an MTU, and determines a trigger for adjusting the MTU based on latency requirements. In response to the trigger, the receiver sets an interrupt flag in a link-layer acknowledgment for the received data frame. In still another embodiment, a sender determines a pending low-latency data frame to send to a receiver operating according to an MTU, and sends a control message to the receiver to indicate the pending low-latency data frame and an adjusted MTU. | 12-25-2014 |
20150092637 | SIGNAL TRANSCEIVING METHOD AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for transceiving a signal in a half-duplex manner in a wireless communication system in which a first carrier and a second carrier are aggregated. The method comprises: a step of receiving a downlink signal on a first carrier during a first symbol period of a specific subframe; and a step of transmitting an uplink signal on a second carrier during a second symbol period of the specific subframe. The specific subframe is set as a downlink subframe in the first carrier and as an uplink subframe in the second carrier. The specific subframe is set to transmit an uplink reference signal. | 04-02-2015 |
20150372801 | APPARATUS AND METHOD FOR CAPABILITY UPDATE IN WIRELESS COMMUNICATION - Aspects of the present disclosure provide a method of communicating capability information that is operable at an apparatus. The apparatus communicates with another device over a carrier, and transmit a capability indication indicative of the capability of the apparatus to support at least two features based on whether the apparatus is operating in a first duplex mode or a second duplex mode. The capability indication is configured to indicate support of a first feature being dependent upon a second feature, among the at least two features | 12-24-2015 |
20150381334 | INTERFERENCE CANCELLATION - A method implemented in a wireless communications system including a first uplink (UL) client device, a second UL client device, a first downlink (DL) client device, and an access point (AP) is disclosed. The method comprises the following steps in this order: a) determining interference alignment (IA) solution between the first and second UL client devices and the first device; and b) determining, according to the IA solution, receive filter U | 12-31-2015 |
20160028533 | ADAPTIVE UPLINK-DOWNLINK SWITCHING TIME FOR HALF DUPLEX OPERATION - According to some embodiments, a method in a user equipment (UE), the UE capable of operating in half-duplex mode and is served by a network node, comprises obtaining a parameter indicative of a round trip time for a radio communication between the UE and the network node and comparing the obtained parameter with a threshold. The method further comprises determining, based on a result of the comparison of the parameter and the threshold, a switching time for switching the UE between uplink and downlink time resources and switching between uplink and downlink time resources within the determined switching time. In particular embodiments, the switching time comprises a first number of time resources (e.g., one) if the parameter is less than the threshold and a second number of time resources (e.g., two) if the parameter is greater than the threshold. | 01-28-2016 |
20160044712 | System and Method for Medium Access Control Enabling Both Full-Duplex and Half-Duplex Communications - Disclosed herein are systems, methods, and non-transitory computer-readable storage media for a modified MAC protocol which can facilitate communications with both full-duplex and half-duplex devices. A system configured according to the disclosed method can enable communications between an Access Point (AP) and a client in either full duplex or half duplex. The system can similarly enable peer-to-peer communications in both full duplex and half duplex communication modes. | 02-11-2016 |
20160065356 | Inter-device Conflict Resolution on a Multimedia Link - A source device communicates multimedia data to a sink device over a multimedia channel of a multimedia link. The source device comprises an interface to a full duplex control channel of the multimedia link. The source device also comprises first arbitration logic to control transfer of control data with the sink device via the full duplex control channel. The first arbitration logic ignores requests to receive inbound control data from the sink device while the source device is transmitting outbound control data to the sink device. The sink device, on the other hand, comprises second arbitration logic to control transfer of control data with the source device via the full duplex control channel. The second arbitration logic stops transmitting outbound control data via the full duplex control channel responsive to receiving a request to receive incoming control data from the source device. | 03-03-2016 |
20160112181 | Adaptive HARQ for Half Duplex Operation for Battery and Antenna Constrained Devices - A user equipment (UE) implements improved communication methods which enable uplink (UL) transmissions consistent with an UL timeline. The UE may have a transmit duty cycle and may transmit acknowledge/negative acknowledge messages to a base station according to the transmit duty cycle. Additionally, the UE may be configured to determine signal-to-interference-plus noise ratio (SINR) between the UE and the base station and compare SINR to a threshold. The UE may transmit redundancy versions of data in consecutive sub-frames with a duty cycle of two transmissions per X+1 sub-frames if SINR is equal or above the threshold and redundancy versions using a duty cycle of one transmission per X sub-frames if SINR is below the threshold. Further, the UE may be configured to communicate a number of UL HARQ processes supported by the UE, receive first information in a first sub-frame, and send second information X sub-frames after the first sub-frame. | 04-21-2016 |
20160183105 | DUPLEX MODE ADAPTIVE METHOD AND APPARATUS | 06-23-2016 |
20160197716 | COMMUNICATION APPARATUS, COMMUNICATION SYSTEM AND COMMUNICATION METHOD | 07-07-2016 |