| Patent application number | Description | Published |
|---|
| 20110117914 | METHOD AND APPARATUS FOR DEREGISTRATION OF PERSONAL NETWORK ELEMENT(PNE) IN 3GPP PERSONAL NETWORK(PN) - Disclosed is a control method of user equipment (UE) to deregister a personal network element (PNE) in a personal network (PN), the control method including receiving a deregistration request message from the PNE via a personal area network (PAN) internal communication means in order to deregister the PNE registered to the PN and subordinate to the UE, transmitting a request message for deregistration of the PNE to a session control device controlling a session with respect to the PN in response to the deregistration request message, receiving a response message corresponding to the request message for deregistration of the PNE from the session control device, and transmitting the response message to the PNE via the PAN internal communication means in order to notifying deregistration of the PNE. | 05-19-2011 |
| 20110138033 | METHOD FOR PROCESSING EXCEPTIONAL CASE OF ESTABLISHING DEFAULT BEARER IN MOBILE COMMUNICATION SYSTEM AND DEVICE THEREFOR - There are provided a method for processing an exceptional case of establishing a default bearer and a device therefor in order to solve a problem in that a user equipment cannot actually receive an IP service by accessing a packet network while failing in establishing the default bearer in a mobile communication system. A method for processing an exceptional case of establishing a default bearer in a mobility management entity includes: receiving a network attachment request from a user equipment; transmitting a network attachment acceptance including an activation request of the default bearer to the user equipment in response to the network attachment request; and cancelling a network attachment procedure when a completion response to the activation request of the default bearer is not received from the user equipment within a predetermined time. | 06-09-2011 |
| 20110275328 | SCHEME FOR MONITORING BATTERY OF MACHINE TYPE COMMUNICATION DEVICE - Provided is a machine type communication system including a machine type communication device operating with a battery. The machine type communication system may monitor a residual power of the battery supplying power to the machine type communication device, and may output the monitored residual power to a device of a manager that manages the machine type communication device. Also, a point in time when the residual power of the battery is to be monitored may be determined based on the residual power. | 11-10-2011 |
| 20120064932 | GROUP CONTROL METHOD FOR MACHINE TYPE COMMUNICATION AND MOBILE COMMUNICATION SYSTEM USING THE METHOD - Provided are a group control method for providing a machine type communication (MTC) service, and a mobile communication system using the method. The group control method includes categorizing one or more MTC devices into one or more MTC groups, assigning MTC group identifiers to respective MTC groups, setting MTC radio network temporary identifiers (MTC RNTIs) according to the MTC group Identifiers, and using the MTC_RNTIs for addressing the MTC devices belonging to the respective MTC groups. | 03-15-2012 |
| 20120099543 | TRANSMISSION METHOD OF BASE STATION FOR RANDOM ACCESS RESOURCE ALLOCATION, TRANSMISSION METHOD OF TERMINAL FOR USING THE RANDOM ACCESS RESOURCE ALLOCATION, AND APPARATUS FOR THEREOF - Provided is a communication method of a base station for random access resource allocation, the communication method including broadcasting system information (SI) that includes information about an extra physical random access channel (xPRACH) of a machine type communication (MTC) terminal and information about a physical random access channel (PRACH) of a general terminal, each of the xPRACH of the MTC terminal and the PRACH of the general terminal having a separated resource space, and receiving a random access attempt from the MTC terminal in response to the broadcast. | 04-26-2012 |
| 20120157141 | CONTENTION BASED UPLINK TRANSMISSION METHOD - Provided is a contention based uplink transmission method. A base station may assign a contention based radio network temporary identifier (CB-RNTI) to a plurality of terminals, and terminals assigned with the same CB-RNTI may perform contention uplink transmission using the same radio resource. | 06-21-2012 |
| 20120163169 | OVERLOAD CONTROL APPARATUS AND METHOD FOR MACHINE TYPE COMMUNICATION SERVICE AND WIRELESS COMMUNICATION SYSTEM PROVIDING MACHINE TYPE COMMUNICATION SERVICE - Provided are an overload control apparatus and method for a machine type communication (MTC) service. The overload control method includes, when an overload state has occurred, including an overload indicator (OI) in a MAC subheader in a random access response to be transmitted to a terminal and transmitting the random access response, before an MTC device wanting to perform a random access procedure transmits a random access preamble to the base station, searching for a random access response transmitted from the base station, when the transmitted random access response is searched for, peeking at the random access response and receiving it, and when it is determined that an OI is included in the random access response, waiting, at the MTC device, for a predetermined delay time and transmitting the random access preamble for performing the random access procedure to the base station. | 06-28-2012 |
| 20130148637 | DEVICE-TO-DEVICE COMMUNICATION CONTROL METHOD - Provided is a device-to-device (D2D) communication control method. A D2D communication control method performed in a control apparatus includes allocating resources for D2D communication, and including information about the allocated resources in D2D-downlink control information (DCI) and transmitting the D2D-DCI to terminals that will perform D2D communication. Accordingly, it is possible to efficiently allocate radio resources for D2D communication, and reduce the load of self-control of terminals. | 06-13-2013 |
| 20130150058 | METHOD OF CONTROLLING COMMUNICATION RESOURCES FOR CELLULAR MOBILE COMMUNICATION SYSTEM-BASED DEVICE-TO-DEVICE COMMUNICATION - Provided is a method of controlling communication resources for cellular mobile communication system-based device-to-deice (D2D) communication. The method includes selecting, at a base station, at least two devices, which are performing cellular communication in the same cell, as D2D candidates, measuring environment-based information on the selected D2D candidates to select at least one D2D pair, and allocating uplink (UL) resources or downlink (DL) resources to the D2D pair. | 06-13-2013 |
| 20130150108 | DEVICE-TO-DEVICE COMMUNICATION METHOD BASED ON CELLULAR COMMUNICATION SYSTEM - Provided is a device-to-device (D2D) communication method based on a cellular communication system. The D2D communication method is based on a hierarchical D2D communication structure configured with a representative terminal and belonging terminals. Accordingly, the D2D communication method can be applied to various applications and business models. Also, a belonging terminal performs data communication only with an adjacent representative terminal due to a middle gathered structure through the representative terminal, so that the D2D communication method can be applied to an application requiring low power consumption. Further, the D2D communication method can be used as a solution for a Proxy machine-to-machine (M2M) device due to powerful security of mobile communication compared to that of a sensor network, reliability of data transmission, and speed of data transmission resulting from low latency. | 06-13-2013 |
| 20130258996 | METHOD OF ALLOCATING RADIO RESOURCES FOR DEVICE-TO-DEVICE COMMUNICATION IN CELLULAR COMMUNICATION SYSTEM - A resource allocation method of a base station for a device-to-device (D2D) communication link based on a cellular communication system includes providing operation information which includes information about one or more resource allocation patterns available for the D2D communication link to terminals which perform D2D communication according to each terminal and each D2D communication link, receiving a buffer status report (BSR) from the terminals which perform the D2D communication, and transmitting an indication value which indicates at least one of the resource allocation patterns based on the BSR. Accordingly, in the resource allocation method, low capacity of downlink control channels is required by the base station, yet flexible and efficient allocation of resources is enabled. | 10-03-2013 |
| 20140080494 | DIRECT COMMUNICATION METHOD OF TERMINAL, METHOD OF CONTROLLING D2D COMMUNICATION, AND TERMINAL DEVICE - Provided are a direct communication method of a terminal, a method of controlling device-to-device (D2D) communication, and a terminal device. The direct communication method of a terminal includes receiving downlink control information (DCI) from an evolved node base-station (eNB), extracting D2D transmission (Tx) or reception (Rx) grant information including a D2D pairing identity (ID) given to the terminal according to each D2D pair from the DCI, and performing data transmission or reception with a counterpart terminal according to Tx or Rx conditions set according to the D2D pairing ID. | 03-20-2014 |
| 20140087744 | LINK ADAPTATION TRANSMISSION AND RECEPTION METHOD IN DEVICE-TO-DEVICE COMMUNICATION BASED CELLULAR MOBILE COMMUNICATION SYSTEM - Provided is a link adaptation transmission and reception method in device-to-device (D2D) communication based on cellular mobile communication. An operation method of a terminal in the link adaptation method according to the present invention includes receiving information related to a first transmission through a D2D link, performing transmission for an opposite terminal using the information related to the first transmission, and determining information related to a second transmission after the transmission based on reception from the opposite terminal. Using the link adaptation method according to the present invention, an adaptive modulation and coding scheme may be provided at the time of data transmission on a D2D link while minimizing control of a base station, thereby reducing the complexity of a cellular network due to the D2D communication. | 03-27-2014 |
| 20140119306 | DEVICE-TO-DEVICE COMMUNICATION METHOD AND MOBILE DEVICE USING THE SAME - There are provided a device-to-device communication method, a mobile device using the same, and a device-to-device communication control method. The device-to-device communication method according to the invention may include receiving device-to-device communication resource allocation information and transmission characteristics information for device-to-device communication from a base station, and performing direct communication with an opposite terminal using the transmission characteristics information for device-to-device communication and the device-to-device communication resource allocation information, in which the transmission characteristics information includes the number of redundancy versions to be transmitted within at least one consecutive transmission time interval (TTI). | 05-01-2014 |
| 20140162633 | METHOD OF PROVIDING SERVICE CONTINUITY BETWEEN CELLULAR COMMUNICATION AND DEVICE-TO-DEVICE COMMUNICATION - A method of providing service continuity between cellular communication and device-to-device communication is disclosed. A procedure for switching between cellular communication and device-to-device communication according to an example embodiment of the present invention may include transferring, by a gateway, a D2D bearer creation request message to an MME, transferring, by the MME, the D2D bearer creation request message to a base station, mapping, by the base station, D2D bearer QoS to D2D radio bearer QoS and transmitting an RRC connection reconfiguration message to terminals, receiving, by the base station, an RRC connection reconfiguration completion message indicating creation of a D2D radio bearer from the terminals, transmitting, by the base station, a D2D bearer creation response message indicating creation of a D2D bearer to the MME, and transferring, by the MME, the D2D bearer creation response message to the gateway. | 06-12-2014 |
| 20140194115 | METHOD FOR DISCOVERY IN DEVICE-TO-DEVICE COMMUNICATIONS AND APPARATUS FOR THE SAME - A method for discovery in device-to-device communications and an apparatus for the same are disclosed. The method performed in a device-to-device server supporting device-to-device discovery between a discovery terminal and a discoverable terminal may include receiving a device-to-device discovery participation message from the discoverable terminal, requesting a gateway to measure a proximity between the discovery terminal and the discoverable terminal, receiving a proximity measurement result from the gateway, and requesting the discovery terminal and the discoverable terminal to initiate a procedure of device-to-device discovery when the proximity measurement result satisfies a predetermined threshold. Thus, the procedure of device-to-device discovery may be performed efficiently. | 07-10-2014 |
| 20150017926 | SCHEME FOR MONITORING BATTERY OF MACHINE TYPE COMMUNICATION DEVICE - Provided is a machine type communication system including a machine type communication device operating with a battery. The machine type communication system may monitor a residual power of the battery supplying power to the machine type communication device, and may output the monitored residual power to a device of a manager that manages the machine type communication device. Also, a point in time when the residual power of the battery is to be monitored may be determined based on the residual power. | 01-15-2015 |
