Abstract: A peripheral device comprises a first entity and a second entity. In operation, the first/second entities are configured to respectively: receive a first/second entity-related message from at least one other device to indicate the availability of the at least one other device for attachment, send, to the at least one other device, a first/second entity-related message indicating the availability for communication with the at least one other device, receive, from the at least one other device, a first/second entity-related signal including a first/second entity-related peripheral device identifier, send a first/second entity-related response to the at least one other device, receive, from the at least one other device, a first/second entity-related device response, and send, to the at least one other device, a first/second entity-related second peripheral response including the first/second entity-related peripheral device identifier.

Abstract: A method and system of assigning reference signals to antennas and nodes in a wireless communication system, the wireless communication system comprising N number of transmitting nodes, wherein N is an integer N?1, is disclosed. The transmitting nodes are transmitting reference signals in a first slot and a second slot within sub-frames, over the same bandwidth. Each transmitting node has at least one transmit antenna, wherein different nodes can have different number of transmit antennas. The reference signals are of two different types, a first type of reference signals used for demodulation, and a second type of reference signals used for measurements.

Abstract: A method and apparatus of allocating a resource for a plurality of logical channels is provided. A transmitter acquires a plurality of available resources for a plurality of component carriers, and allocates the plurality of available resources to the plurality of logical channels based on priority of each of the plurality of logical channels.

Abstract: There is provided a method of transmitting data to multi destinations in a wireless LAN system. In the method, a transmitting device generates a media access control protocol data unit (MPDU) for each of a plurality of destination devices, and the transmitting device generates an aggregated-MPDU (A-MPDU) by sequentially adding the MPDU for each of the destination devices. A physical header is added to the A-MPDU, and then the A-MPDU with the physical head added is transmitted to the plurality of destination devices at the transmitting device. The respective destination device transmits ACK frames, which notify a successful reception, to the transmitting device after receiving a self-destined MPDU from the A-MPDU and verifying the received MPDU. The transmitting device receives the ACK frames transmitted from the respective destination devices in sequence.

Abstract: Provided are a decoding apparatus, a decoding method and a receiving apparatus for decoding in a system supporting an OFDM/OFDMA scheme. The decoding method includes the steps of: receiving phase-modulated signal; performing subcarrier demodulation on the received signal and generating correlation metrics; generating decoding metrics using the correlation metrics; and determining a payload using the largest metric of the decoding metrics and at least one of an average metric and the second largest metric of the decoding metrics.

Abstract: Methods and devices are provided for MIMO OFDM transmitter and receivers having odd and/even numbers of transmit antennas. Various methods for pre-coding information bits before space time coding (STC) are described for enabling transmission of information bits over all antennas. Methods of decoding received signals that have been pre-coded and STC coded are also provided by embodiments of the invention. Pilot patterns for downlink and uplink transmission between a base station and one or more wireless terminals for three transmit antenna transmitters are also provided. Variable rate codes are provided that combine various fixed rate codes in a manner that results in codes whose rates are dependent on all the various fixed rate codes that are combined.

Abstract: Techniques for transmitting data using single-carrier frequency division multiple access (SC-FDMA) multiplexing schemes are described. In one aspect, data is sent on sets of adjacent subbands that are offset from one another to achieve frequency diversity. A terminal may be assigned a set of N adjacent subbands that is offset by less than N (e.g., N/2) subbands from another set of N adjacent subbands assigned to another terminal and would then observe interference on only subbands that overlap. In another aspect, a multi-carrier transmission symbol is generated with multi-carrier SC-FDMA. Multiple waveforms carrying modulation symbols in the time domain on multiple sets of subbands are generated. The multiple waveforms are pre-processed (e.g., cyclically delayed by different amounts) to obtain pre-processed waveforms, which are combined (e.g., added) to obtain a composite waveform. A cyclic prefix is appended to the composite waveform to generate the multi-carrier transmission symbol.

Abstract: The present invention is directed to connecting a dual mode mobile terminal to a wireless communication network and includes connecting a dual mode mobile terminal to a wireless communication network using a mobile attachment mode or a fixed attachment mode. This includes detecting an operative transfer state of the dual mode mobile terminal triggering a transfer from the mobile attachment mode to the fixed attachment mode, and achieving a mobile attachment mode detach from the wireless communication network in the mobile attachment mode upon detection of the operative transfer state. This also includes achieving a fixed attachment mode attach to the same wireless communication network subsequent to execution of the mobile attachment mode detach to initiate the fixed attachment mode.

Abstract: A peripheral device comprises a first entity and a second entity. In operation, the first/second entities are configured to respectively: receive a first/second entity-related message from at least one other device to indicate the availability of the at least one other device for attachment, send, to the at least one other device, a first/second entity-related message indicating the availability for communication with the at least one other device, receive, from the at least one other device, a first/second entity-related signal including a first/second entity-related peripheral device identifier, send a first/second entity-related response to the at least one other device, receive, from the at least one other device, a first/second entity-related device response, and send, to the at least one other device, a first/second entity-related second peripheral response including the first/second entity-related peripheral device identifier.

Abstract: Certain embodiments of the invention may be found in a method and system for minimizing power consumption in a communication system. Exemplary aspects of the invention may comprise configuring a supply voltage of an amplifier to enable communication of data using a first communication protocol during a first timeslot in a TDM frame, reconfiguring the supply voltage of the amplifier to enable communication of data using a different communication protocol, and adjusting the supply voltage of the amplifier in proportion to the envelope of a baseband signal conforming to one of the communication protocols. The first and second communication protocols may conform to various communication protocols, such as WCDMA, HSDPA, HSUDPA, GSM, GPRS, EDGE, WiMAX, OFDM, UWB, ZigBee, and Bluetooth. The baseband signal may be delayed by a number of samples before being input into the amplifier.

Abstract: A network (100) includes a hub device (110) and at least one unattached peripheral device (120). The hub device comprises circuitry and a transceiver in communication with the circuitry. In operation, the hub device is configured to cause the transceiver to i) send a message to indicate the availability of the hub device for attachment to a first peripheral device, ii) receive, from the first peripheral device, a message indicating the availability of the first peripheral device for communication with the hub device, iii) send, to the first peripheral device, a signal including a first peripheral device identifier, iv) receive, from the first peripheral device, a response, v) send a hub response to the first peripheral device, and vi) receive, from the first peripheral device, a second peripheral response including the first peripheral device identifier.

Abstract: Systems, apparatus, methods, and manufactures for caching content at a communications services cell site which include caching previously provided content and/or predictively caching content. Content may be transmitted to cell sites for caching via primary or ancillary channels. Ancillary channels may be provided through a broadcast medium such as the ancillary or supplementary services spectrum of the digital television (DTV) spectrum. Content may also be broadcast to multiple cell sites simultaneously.

Abstract: Method for transmitting data in a transmission system, the data being transmitted in the form of packets including a compressed header field and a data field and according to a format suited to the transmission system comprising the following steps: recovering the data packet to be transmitted including a compressed header and useful data, identifying the header part from the useful-data part, applying a corrector coding which is selected at the level of the header, and providing the resulting new packet to the link layer, while also communicating the protection mode used, generating the link header according to the transmission format of the relevant transmission system integrating the mode of protection used, and the adaptation of the CRC checksum of the link layer, on reception, performing the error corrector decoding in two steps.

Abstract: An access point includes a beacon module and a control module. The access point transmits a beacon during a beacon interval. The beacon module determines a first portion of the beacon interval and a second portion of the beacon interval. The access point operates in a normal mode during the first portion of the beacon interval. The control module operates the access point in a power save mode during the second portion of the beacon interval. The control module operates the access point in the power save mode in response to a client station not communicating with the access point during the first portion of the beacon interval.

Abstract: An apparatus for transmitting tire pressure signals includes a transmission buffer and a transmitter. The transmission buffer is configured to store tire pressure monitoring data. The transmitter is configured to transmit a signal including the tire pressure monitoring data. The signal includes a burst that includes plurality of frames and each of the frames includes the tire pressure monitoring information. A plurality of pause spaces is disposed between at least some of the frames in the burst.

Abstract: A method and system for wireless communication in which a plurality of media access control (“MAC”) packet data units (“PDUs”) corresponding to a plurality of wireless communication connections are received. The plurality of MAC PDUs is grouped into a relay packet and the relay packet is transmitted. Such grouping and transmission of the relay packet is performed by one or more relay nodes. The traffic control for the transmission can also be based on centralized or decentralized routing control and/or centralized or decentralized QoS control.

Abstract: There is disclosed a communication terminal device capable of eliminating collision of access request signals simultaneously transmitted from communication terminal devices in a local cell, preventing generation of interference signal in another cell adjacent to the local cell, and improving the throughput in the local cell. There is also disclosed a base station device for controlling the transmission power of the access permission signal so as to prevent generation of an interference signal in another cell adjacent to the local cell. In this device, a use sub-channel selection unit (206) has a correspondence table between the reception quality of the pilot signals divided into classes and the sub-channel allocated to the classes. According to the correspondence table, the use sub-channel selection unit (206) selects a sub-channel group of RACH correlated to the measurement result of the reception quality of the pilot signals reported from the reception quality measurement unit (205).

Abstract: A mobile ad-hoc network includes a plurality of N mobile nodes and wireless communication links connecting the mobile nodes, which each include a communications device for transmitting and routing data packets wirelessly to other mobile nodes via the wireless communication links in accordance with a time division multiple access (TDMA) data transmission protocol using a TDMA epoch that is divided into a beacon interval, digital voice interval and digital data interval. The mobile nodes monitor channel conditions using the beacon, digital voice and digital data intervals and provide a network conductivity performance as valid receptions occur within mobile nodes. A data rate is calculated and set for other N?1 mobile nodes using monitored channel conditions for the beacon, digital voice and digital data intervals.

Abstract: Performing distributed contention-free communication channel reservation for wireless communication, is disclosed. One implementation involves providing access to a shared communication channel in a wireless network including multiple wireless stations, by performing distributed channel time reservation for contention-free access to a shared wireless channel by each wireless station, based on a prior successful contention by the wireless station for access to the channel in a wireless network.

Abstract: Device, system, and method of coordinating among multiple collocated wireless communication units. For example, a wireless communication device may include a first wireless communication unit to communicate with an access point of a first wireless communication network; and a second wireless communication unit to communicate in a second wireless communication network, wherein the first wireless communication unit is to determine at least one contention-free period, during which the second wireless communication unit is expected not to communicate in the second wireless communication network, and wherein, during the contention-free period, the first wireless communication unit is to transmit to the access point at least one request to transmit one or more pending transmissions to the first wireless communication unit. Other embodiments are described and claimed.

Abstract: A method for transmitting information in a communication network of multiple nodes, in which information transmission is partitioned into successive superframes, and in which each superframe is partitioned into a beacon period followed by a data period, which may consist of a contention free period (CFP), and each beacon period and CFP of the data period is partitioned into timeslots. The method includes allocating to at least a first node of the multiple nodes a designated timeslot in which to transmit data in at least one of a plurality of superframes, and allocating to at least a second node of the multiple nodes the same designated timeslot in which to transmit information during at least one subsequent superframe.

Abstract: A WiMAX based system having a base station which communicates to a plurality of consumer premises equipment (CPE) is disclosed. The base station obtains and stores information corresponding to the MAC addresses of each CPE. Messages from one CPE can be sent to the base station and then sent to another CPE using the MAC address stored in the base station. Each CPE may originate an uplink multicast message for transmission to more than one CPE. When the base station receives the uplink multicast message, it broadcasts the multicast message to all of the CPEs identified in the multicast message including the originating CPE. When the originating CPE recognizes the multicast message as a message it originated, the originating CPE drops the multicast message. The CPEs may be grouped into virtual local area networks (VLANs) using group identifiers which permit multicast messages to be transmitted to specific groups of CPEs.

Abstract: A device for use in, and system for, a vehicle-to-vehicle (V2V) communication and safety system that uses a hybrid combination of TDMA and CSMA protocols. The synchronized TDMA frame is partitioned into three prioritized time interval classes with differing priorities and dynamically changing sizes based on demand of higher-priority messages. The TDMA portions of a repeating time interval uses self-assigned dense time slots for high-priority safety messages, with one portion for emergency vehicles and road-side units. The CSMA protocol uses remaining available time for lower-priority and overflow messages. The higher-priority time interval classes change size dynamically based on the number of current transmissions. Modulation schemes, but not data link formats, use existing Standards. Embodiments include optimized traffic flow and signal timing.

Abstract: A frequency block allocation apparatus based on a single carrier frequency division multiple access method includes an allocation index computation target selector that selects frequency block groups, each consisting of one or more continuous non-allocated frequency blocks from a set of non-allocated frequency blocks; an allocation index computation unit that computes an allocation index for each target pair of each frequency block group and a terminal; and a frequency block allocation unit that determines one of the target pairs to be a frequency block allocation target, in accordance with priority based on the computed allocation indexes.

Abstract: Systems and methods for mobile communications are disclosed herein. An example method for a mobile station includes receiving first data from a carrier on a first frequency using a first receiver of the mobile station in a first timeslot, tuning a second frequency of the carrier using the second receiver while the first receiver is receiving the first data during the first timeslot, and receiving second data from the carrier on the second frequency using the second receiver during a second timeslot that immediately follows the first timeslot, wherein the mobile station receives data on all timeslots without each of two time division multiple access frames.

Abstract: An apparatus and method for transmitting packets having quality of service requirement wherein the quality of service requirements associated with the packets are received at an input, said quality of service parameters include at least one of delay, bandwidth, peak bandwidth and retransmission bandwidth. The received quality of service parameters are mapped to radio protocol parameters including at least one of a priority slot interval, a priority slot phase, a packet duration and modulation format for the radio channel. The packets are transmitted on a radio channel according to the mapped radio protocol parameters.

Abstract: A hybrid access protocol (HAP) controls access of nodes of a network to a communication medium, such as a radio frequency communication channel. In one example, a one-hop neighbor of a root node receives priority information from the root node, which includes a list of communication time slots, and an indication of one or more of the communication time slots during which the one-hop neighbor has communication priority relative to other one-hop neighbors of the root node. If the one-hop neighbor has information to transmit to the root node, it waits a predetermined period of time before transmitting the information to the root node. While waiting, the one-hop neighbor listens for transmissions by other nodes. In response to expiration of the predetermined period of time without overhearing transmissions by other nodes, the one-hop neighbor transmits its data to the root node.

Abstract: In a non-limiting and exemplary embodiment, a method is provided arranging control of multiple radio systems of a wireless communications device. A second scheduler performs proactive scheduling decisions on the basis of radio resource usage requirements of radio systems of the wireless communications terminal device and sending information on the proactive scheduling decision to a first scheduler. The first scheduler performs reactive scheduling decisions on the basis of the proactive scheduling decision information from the second scheduler.

Abstract: Methods of using superposition coding in a communications systems, e.g., a multi-user communications system. Superposition coding in accordance with the invention occurs in the case of an uplink by transmissions of different wireless terminals transmitting using the same communications resource, e.g., simultaneously transmitting using the same frequencies. The signals combine in the communications channel resulting in one transmission being superimposed on the other transmission. The device, e.g., base station, receiving the superimposed signals uses superposition decoding techniques to recover both signals. To obtain the benefit of the superposition, assignments of channel segments to multiple wireless terminals is controlled by the base station and/or transmission power levels are controlled by on or more wireless terminals sharing the same uplink communications resource, e.g.

Abstract: Systems and methods for providing a low power receiver device using fine grained time division are provided. In one embodiment, the receiver device comprises a tuner, a demodulator configured to demodulate at least one sampled signal, a payload processor configured to process at least one demodulated signal into an output format, and a time division control logic configured to generate a control signal to switch at least one component within the receiver device between modes to conserve power. The at least one component may be switched between an active mode, a standby mode, a power off mode, and a low power mode. In further embodiments, the at least one component may be switched between staggered modes.

Abstract: A transmitting system and a method of transmitting digital broadcast signal are disclosed. The method of transmitting digital broadcasting signal in a transmitter includes encoding mobile data for forward error correction to build RS frames, wherein the RS frames includes the mobile data belonging to ensembles, each ensemble being a collection of services providing same quality of service, encoding signaling data including binding information between the ensembles and the services, forming data groups, forming mobile data packets including data in the data groups, wherein each mobile data packet include an additional mobile data packets, interleaving data in the mobile data packets, wherein a fifth region of each data group includes the additional mobile data packets, transmitting the interleaved data, wherein the signaling data includes an identifier indicating a number of ensembles transmitted through a data group having the fifth region.

Abstract: A system and method is provided for incorporating host-device communication in wireless IJSB (WUSB). A host (101) either uses a multicast Distributed Reservation Protocol (DRP) frame on behalf of connected devices (102) to reserve wireless channel resources, a unicast DRP frame or Enhanced Distributed Channel Access (EDCA) with a Poll Frame. In the case of a unicast DRP frame the number of unicast frames sent for reservation depends on the number of connected devices (102).

Abstract: A wireless communication apparatus for performing transmission and reception by using a Time Division Duplexing method is disclosed. The wireless communication apparatus includes a receiving part configured to output a timing signal based on a received timing signal, a transmitting part configured to transmit a timing signal based on the timing signal received by the receiving part, a control part configured to increase a reception opportunity for the receiving part to receive the timing signal and decrease a transmission opportunity for the transmitting part to transmit the timing signal as the accuracy of the timing signal received by the receiving part becomes lower.

Abstract: The present invention relates to multimedia broadcast and multicast services, MBMS, in a cell wherein variable transmission bandwidth is employed. In particular the invention relates to transmission of MBMS control information relating to broadcast and multicast services. According to the method and arrangement of the invention the manner in which the transmission of MBMS control information is performed and/or the content of the MBMS control information is determined based on the amount and the portion of the cell bandwidth that is used for MBMS transmission.

Abstract: In a wireless LAN system, the transaction efficiency may be enhanced. The transmitter station holds the number of transaction successes, the number of transaction failures, the data rate when the transaction is carried out, and the number wait to perform the transaction. The transmitter station determines that the radio wave condition is in the state {WS} from the data rate at which the transaction succeeded; the area covered by the transmitter station is influenced by the hidden terminal by the average rate of the failure transaction, and the area is influenced by the collision terminal from the relation between the number of the wait for the transaction and the data rate. The transmitter station selects an optimum mode for respective conditions.

Abstract: Systems and methods for the management of communications related to telecommunications-based devices are provided. Telecommunications-based devices initiate requests to gateway computing devices corresponding to a radio communication network to establish data communications. The gateway computing device accepts the communication request and specifies an ordered preference of one or more communication protocols that will be used telecommunications-based devices accessing the wireless communication network. The telecommunications-based device processes the acceptance and selects a communication protocol from the ordered preference provided by the gateway computing device.

Abstract: A system for performing transmit power and admission control for a satellite based wireless communication systems. Admission control uses centralized admission and distributed admission controls. Centralized admission control uses a maximum persistence value broadcasted from a hub to terminals. Persistence is the probability that a transmission will timely occur. Each terminal transmits a persistence that is no greater than the maximum persistence value. If the transmission fails, the transmission is repeated using the same probability. Lowering the persistence introduces a delay for alleviating congestion. Power control is performed using centralized and distributed power control. Centralized power control uses power control commands transmitted from the hub to each terminal. When an acknowledge is not received, a backoff and recovery procedure is performed.

Abstract: Various embodiments for a communication control configuration and a communication control method are described for wireless communication devices having at least two radios that can potentially interfere with one another. The control schemes described herein reduce the likelihood that the two radios will interfere with one another during operation.

Abstract: A method and an arrangement for transferring information including delay sensitive data, such as speech and video data, in a packet radio service is provided. Data blocks are transmitted from a mobile station to a radio resource entity during a first active data transfer period using an uplink temporary block flow (TBF) connection. The uplink TBF connection is maintained during a passive period that follows the first active data transfer period, wherein during the passive period the mobile station does not send data blocks to the radio resource entity.

Abstract: The present invention relates to a cellular communication and addresses the problem of an LTE UE measuring downlink quality when the load in cell varies instantaneously and over a wide frequency spectrum. The UE lacks capacity to measure over frequency bandwidth and time needed to make a cell load measure with sufficient reliability for making a inter-cell handover or an inter RAT handover. The solution is the DL power transmitted in a narrow band of the carrier frequency is adjusted to reflect the total cell load. The total cell load is measured and averaged over time and made proportional to the frequency carrier bandwidth. The power may be controlled for specific time slots in the narrow frequency band for the terminal to measure on. This is advantageous because then the waste power needed for enabling the UE measured can be reduced and the extra interference caused by the invention be reduced.

Abstract: The present invention relates to communicating between a network and a mobile terminal in a wireless communication system. The invention includes receiving a coded data unit from a network, determining whether the coded data unit can be successfully decoded, determining not to receive a transmission from the network for a first predetermined amount of time independent of whether the data unit is successfully decoded, and determining not to receive a transmission from the network for a second predetermined amount of time when the data unit is successfully decoded.

Abstract: Methods and systems for mobile phone location within a digital distributed antenna system (DAS) are provided. In one embodiment, a method comprises: receiving a request for location services from a subscriber unit located within a digital DAS, the digital DAS including a first partition of bandwidth for transporting digitized RF signals of one or more modulated signals and a second partition of bandwidth for an Ethernet pipe transporting IP formatted data; routing the request for location services to a subscriber locator center; instructing locator receivers within a geographical area of the digital DAS to listen for a signal from the subscriber unit; listening for the signal at a first locator receiver; when the signal is observed, recording a time the signal was received and generating subscriber unit ranging data; and transmitting subscriber unit ranging data back to the subscriber locator center in an IP formatted message via the Ethernet pipe.

Abstract: A method, medium, and wireless system are provided for scheduling access terminals to prevent starvation of access terminals connected to a communication network when one or more recently-connected access terminals having limited historical information about their channel conditions request time slots to initiate network communications. The wireless system includes access terminals and base stations that communicate over the communication network. The access terminals measure channel conditions associated with communications to the base station and transmit requests that specify a desired communication rate to the base station. The base stations receive the requests from each access terminal and select an access terminal to communicate during a subsequent time slot based on, among other things, the channel conditions and weighted average functions of the communication rate corresponding to the access terminal.

Abstract: System and method for determining an optimal transmission center frequency for a traffic station (30) in a satellite communication system (100) includes transmitting, by the traffic station (30) in a first uplink channel, a first burst of information in a first uplink TDMA frame to a satellite (10) and receiving, by the traffic station (30) in a first downlink channel, a downlink TDMA frame including a reference burst (210) and the first burst of information. A Doppler offset ratio is calculated based on a measured frequency shift of the received first burst of information. A local oscillator offset ratio is calculated based on a measured frequency shift of the reference burst and the Doppler offset ratio. An adjusted transmission frequency of a second uplink channel is calculated based on the Doppler offset ratio and the local oscillator offset ratio.

Abstract: Techniques for multiplexing multiple data streams using frequency division multiplexing (FDM) in an OFDM system are described. M disjoint “interlaces” are formed with U usable subbands. Each interlace is a different set of S subbands, where U=M·S. The subbands for each interlace are interlaced with the subbands for each of the other M?1 interlaces. M slots may be defined for each symbol period and assigned slot indices 1 through M. The slot indices may be mapped to interlaces such that (1) frequency diversity is achieved for each slot index and (2) the interlaces used for pilot transmission have varying distances to the interlaces used for each slot index, which improves channel estimation performance. Each data stream may be processed as data packets of a fixed size, and different numbers of slots may be used for each data packet depending on the coding and modulation scheme used for the data packet.

Abstract: An apparatus for reducing TDMA noise in a terminal transceiving a wireless signal in a TDMA scheme, includes an interface unit in which an output accessory is mounted, an audio processor including a virtual ground and transceiving an audio signal to and from an output accessory through the interface unit, a switch unit provided between the interface unit and the audio processor and switching such that a ground terminal of the interface unit is connected to one of a real ground or a virtual ground of the audio processor, and a controller controlling the switch unit to connect the ground terminal of the interface unit to the virtual ground when a call function using the output accessory is activated, in which the switch unit is configured by two or more switches which are connected to each other in a parallel connection.

Abstract: An apparatus and method for Automatic Repeat reQuest (ARQ) feedback polling in a wireless communication system are provided. The method for ARQ feedback polling includes transmitting at least one ARQ block to a receive end, polling ARQ feedback to the receive end using an extended header, determining if ARQ feedback information is received from the receive end within a lifetime of ARQ feedback, determining success or failure of transmission of the at least one ARQ block through the ARQ feedback information if it is determined that the ARQ feedback information is received within the lifetime of ARQ feedback, and polling ARQ feedback again to the receive end if it is determined that the ARQ feedback information is not received within the lifetime of ARQ feedback.

Abstract: One object of the present invention is to effectively utilize adaptive modulation and improve stability of wireless communication, without departing from standards, by independently controlling MCSs of retransmission data and usual data and using MCS suitable for each data. In the wireless communication system of the present invention, a frame, in which an error occurs, in both a transmitting device and a receiving device and the error part are specified, and MCS used in the frame is specified. Therefore, it is possible to modulate/demodulate the error part based on desired MCS without loading MCS on HARQ.

Abstract: The invention relates to a method for activating and maintaining a plurality of separate and distanced functional units in an aircraft cabin. According to the invention, a wireless network comprising a plurality of nodes is initialized, wherein each node is associated with a device wherein said initializing comprises associating each node a sending time slot within a time frame using a TDMA synchronization scheme, wherein each node is active to send signals during its sending time slot and is active to receive signals during a first set of time slots comprising a number of time slots of said frame, wherein the sending time slot of a node is different from the sending time slots of at least a plurality of its neighbored nodes.

Abstract: A method and apparatus for allocating resources using a directional beam in a wireless communication network is provided. A coordinator device calculates the number of flows able to be concurrently transmitted with each flow that is generated between the nodes and a transmission time of the each flow, and groups together the flows based on the calculation result. In addition, the coordinator device allocates resources to the respective nodes such that the nodes which generate the flows belonging to the same group can transmit the flows concurrently. Thus, the amount of the overall concurrent transmission can be maximized.