Patent application number | Description | Published |
20100131813 | METHOD FOR SELECTING PMI FOR NON-ADAPTIVE HARQ OPERATION IN A MIMO WIRELESS COMMUNICATION SYSTEM - A method for efficiently acquiring precoding information and transmitting an uplink signal using the precoding information in a User Equipment (UE) in a Multiple Input Multiple Output (MIMO) scheme is disclosed. The UE receives from a Base Station (BS) a scheduling grant signal including precoding matrix information to be used for an uplink signal transmission from the UE, precodes an uplink signal using the precoding matrix information included in the received scheduling grant signal, and transmits the precoded uplink signal initially to the BS. When retransmitting the uplink signal, if a scheduling grant signal is not received for the retransmission from the BS, the uplink signal is precoded and retransmitted using precoding matrix information included in a latest scheduling grant signal received for transmission of an uplink signal having a Hybrid Automatic Repeat reQuest (HARQ) process number equal to an HARQ process number of the uplink signal to be retransmitted. | 05-27-2010 |
20110110444 | METHOD OF RESOURCE BLOCK (RB) BUNDLING - A method of sizing bundled resource blocks (RBs) having at least one user equipment (UE)-specific demodulation reference signal in an orthogonal frequency division multiplexing (OFDM) system is disclosed. According to one embodiment, the method includes: receiving configuration information related to at least one UE-specific demodulation reference signal; receiving a plurality of resource blocks (RBs) from a network, wherein the plurality of resource blocks comprises the at least one UE-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data, wherein a number of the plurality of RBs is dependent on a size of a system bandwidth, the size of the system bandwidth corresponding to one of four size ranges; and processing at least one of the received plurality of RBs by bundling the plurality of RBs into RB bundles, wherein the size of each RB bundle is based on the one of the four size ranges. | 05-12-2011 |
20110228737 | METHOD FOR TRANSMITTING AND RECEIVING UPLINK REFERENCE SIGNAL IN A WIRELESS COMMUNICATION SYSTEM HAVING MULTIPLE ANTENNAS - A method for transmitting and receiving uplink reference signals in a wireless communication system having multiple antennas is disclosed. The uplink reference signal transmission method includes transmitting a first reference signal sequence to a base station, and transmitting a second reference signal sequence to the base station, the second reference signal sequence being obtained by cyclically shifting the first reference signal sequence by a first cyclic delay value. | 09-22-2011 |
20130054723 | REPRESENTATIVE DEVICE SELECTION METHOD IN COEXISTENCE SCHEME - According to one embodiment of the present invention, provided is a method in which a server enabling heterogeneous wireless devices to coexist in an equal frequency band selects a master management device among multiple management devices for coexistence. The method for selecting a master management device may include: receiving from a server a request message from a certain management device among the multiple management devices; selecting a master-candidate device among the multiple management devices in response to reception of the request message; transmitting, to the selected candidate device, a request message for requesting the selected candidate device to take charge of a master management device; receiving a response message from the selected candidate device; selecting the selected candidate device as a master management device when the response message includes an acceptance response; and transmitting an announcement message including the result of the selection to the multiple management devices. | 02-28-2013 |
20130329690 | METHOD AND APPARATUS FOR TRANSRECEIVING DATA IN MEDICAL BODY AREA NETWORK - The present invention relates to a method for a terminal transreceiving data with a base station in a medical body area network (MBAN) comprising the following steps: receiving from the base station information on an available channel list, which shows at least one available channel from a second frequency band, through a first frequency band; channel switching from one channel from the first frequency band to one of the available channels from the second frequency band based on the information on the available channel list; and transreceiving data with the base station through the available channel to which the channel is switched. | 12-12-2013 |
20140003401 | METHOD AND APPARATUS FOR SCHEDULING WIRELESS PERSONAL AREA NETWORK | 01-02-2014 |
20140023014 | METHOD FOR CHANNEL SWITCHING IN WIRELESS PERSONAL AREA NETWORK AND APPARATUS FOR SAME - A method for a user equipment switching an operation channel in a wireless personal area network (WPAN), disclosed in the present invention, comprises the following steps: setting a PAN coordinator and an association for a first frequency band; receiving from the PAN coordinator of the first frequency band information for channel switching to a second frequency band; and setting the PAN coordinator and the association for the second frequency band based on the switching information that is received. | 01-23-2014 |
20140024404 | Method of Initializing a Channel in a Medical Body Area Network - According to the disclosure of the present invention, a method of a Network Body Area Network (MBAN) master to control the channel defaulting of an MBAN terminal in an MBAN system is provided. The method includes: performing an association process with the MBAN terminal through a channel of a first frequency band; and transmitting control information for the channel initialization of the MBAN terminal to the MBAN terminal. The control information includes a channel defaulting timer, and a value of the channel defaulting timer indicates a time between the timing when the MBAN terminal cannot receive a signal from a channel of the first frequency band in use and the timing when the channel search of a second frequency band starts. | 01-23-2014 |
20140036863 | Channel Switching Method in a Medical Body Area Network - The disclosure of the present invention provides a method for a Medical Body Area Network (MBAN) to control, through a master, the channel switching of an MBAN terminal that uses a channel of a first frequency band in an MBAN system. The method includes: receiving information related to the use of each channel of a second frequency band from an MBAN controller; and transmitting information on a channel of the second frequency band that the MBAN terminal is to switch on the basis of the received information related to the use of each channel of the second frequency band. The first frequency band and the second frequency band are distinguished from each other based on whether the MBAN terminal uses a corresponding frequency band first. | 02-06-2014 |
20140064252 | METHOD AND DEVICE FOR SELECTING A CHANNEL ACCORDING TO A DEVICE'S MOBILITY - The present invention relates to a method of selecting a channel, and more particularly, to a method of selecting a channel according to a Medical Wireless Body Area Network (MBAN) device's mobility, and of using same. The method includes: receiving, by a Medical Body Area Network (MBAN) master, a connection request signal including information on mobility from an MBAN device; transmitting, by the MBAN master, a connection response signal to the MBAN device in response to the received connection request signal; and allocating a channel for the MBAN device according to the information on mobility in the received connection request signal. | 03-06-2014 |
20140254540 | Method and Device for Setting Operating Channel in White Space - The present invention relates to a method of setting an operating channel for a second station STA by a first STA in a white space according to an embodiment of the present invention may include: obtaining information on available TV channels from a geographical database GDB; and transmitting, to the second STA, setting information on the operating channel determined based on the information on the available TV channel. If the minimum channel bandwidth supported by the operating channel is W MHz, the operating channel may be defined as one or more of a) a width of one W MHz channel, b) a width of two contiguous W MHz channels, c) a width of four contiguous W MHz channels, d) a width of two non-contiguous W MHz channels, or e) a channel width consisting of two non-contiguous frequency parts, each of which includes two contiguous W MHz channels. | 09-11-2014 |
20150085816 | METHOD OF RESOURCE BLOCK (RB) BUNDLING - A method of sizing bundled resource blocks (RBs) having at least one user equipment (UE)-specific demodulation reference signal in an orthogonal frequency division multiplexing (OFDM) system is disclosed. According to one embodiment, the method includes: receiving configuration information related to at least one UE-specific demodulation reference signal; receiving a plurality of resource blocks (RBs) from a network, wherein the plurality of resource blocks comprises the at least one UE-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data, wherein a number of the plurality of RBs is dependent on a size of a system bandwidth, the size of the system bandwidth corresponding to one of four size ranges; and processing at least one of the received plurality of RBs by bundling the plurality of RBs into RB bundles, wherein the size of each RB bundle is based on the one of the four size ranges. | 03-26-2015 |