Lg Electronics Inc.

Ae Ran Youn

Ki Seon Ryu

Yong Ho Kim

Hee Jeong Cho

Jin Sam Kwak

Bin Chul Ihm

Jeong Ki Kim

Gi Won Park

Gene Beck Hahn

Sung Woong Ha

Seung Hee Han

Yeong Hyeon Kwon

Jin Young Chun

Kyu Jin Park

Beom Joon Kim

Tae Gon Kong

Du Hyun Mun

Min Seok Noh

Hyun Woo Lee

Young Soo Yuk

Jae Won Lim

Yong Suk Jin

Ji Wook Chung

Jae Hoon Chung

Dong Cheol Kim

Jin Soo Choi

Wook Bong Lee

Jin Soo Lee

Han Gyu Cho

Yong Hwan Kim

Hyun Hwa Park

Chang Jae Lee

Jong Young Han

Moon Il Lee

Hyun Soo Ko

Eunjong Lee

Wookbong Lee

Eun Jong Lee

In Uk Jung

Dong Kyu Kim

Dong Guk Lim

Doo Hyun Sung

Hyung Ho Park

Jin Hyuk Jung

A method for a terminal to communicate with a network using a plurality of frequency band cells, and the terminal for performing the method are discussed. The method according to one embodiment includes acquiring frequency bands information on which of frequency bands measurement can be performed and on which of the frequency bands measurement cannot be performed. The frequency bands information is acquired from outside of the terminal. The method according to the embodiment further includes performing measurement on the frequency bands on which measurement can be performed based on the frequency bands information; acquiring measurement result information on the plurality of frequency band cells based on the measurement; and communicating data with a network on the plurality of frequency band cells considering the measurement result information.

Apparatus and method for dynamically allocating radio resource

The invention relates to a communication device and method that dynamically uses frequency resources, and more particularly, to a mobile terminal and a communication method that can dynamically allocate frequencies. The mobile terminal, which can dynamically allocate frequencies includes a communication module including a cognitive engine and a communication system block. The cognitive engine searches frequency bands based on both specific frequency policy and a service chosen by the user and selects a specific frequency band from the searched frequency bands. The communication system block includes a platform block for performing configuration for the selected frequency band and at least one component block for performing data processing based on a specific protocol according tox the configuration of the platform block.

A first transparent relay station (RS) can receive a signal from a base station (BS) corresponding to superordinate node of the first transparent RS or a second RS corresponding to superordinate non-transparent RS the first transparent RS through a downlink receive zone, and the first transparent RS can transmit the signal received through the downlink receive zone to a mobile station (MS) through a downlink transmit zone, wherein a downlink subframes of the first transparent RS is located the downlink receive zone and the downlink transmit zone in order.

Method for transmitting and receiving signal in multi-hop relay system

A method of allocating a radio resource in a wireless access system is disclosed. The method includes receiving a control message associated with radio resource allocation for transmitting uplink data to the base station, wherein the control message comprises a first persistent uplink allocation information element comprising first resource allocation information associated with a first resource allocation region for transmitting the uplink data of a mobile station and transmitting an acknowledgment (ACK) message from the mobile station to the base station in response to successfully receiving the first persistent uplink allocation information element.

Method of allocating resource-area in wireless access system

A method for reporting a channel status in a mobile communication system including a relay station (RS) is provided. When a mobile terminal in the coverage of a base station (BS) receives a service through an RS, the RS reports a channel status between the RS and the terminal to the BS to allow the BS to decide whether or not to communicate with the terminal through the RS. In the method, a first RS in communication with a BS and at least one terminal measures a channel quality with a first terminal, compares the measured channel quality with a threshold and transmits a report message to the BS according to the comparison. The report message requests the BS to measure channel quality of at least a second RS or the first terminal in communication with the BS.

Method of controlling relay communication

A communication method using a relay station (RS) in a mobile communication system is disclosed. A base station transmits identification information, which designates a position of a relay station region during at least one next frame, to a mobile subscriber station through the relay station, and the mobile subscriber station identifies the position of the relay station region during the at least one next frame. Thus, the mobile subscriber station does not need to synchronize with a relay station preamble to retrieve the relay station region for every frame, and a start point of the relay station region can be retrieved quickly and exactly even in the case that the position of the relay station region is varied.

Communication method using relay station in mobile communication system

A method for requesting an emergency service to a base station and a mobile station using the same are disclosed. During initial network entry, a mobile station may transmit an emergency message to a base station using an emergency Flow Identifier (FID), and receive from the base station information about resources allocated according to a default service flow parameter predefined for the emergency service by the base station. The mobile station may transmit to the base station a ranging request message including an emergency service indicator indicating an emergency service request, and receive from the base station a ranging response message including an emergency FID allocated by the BS as a response to the emergency service request. The emergency FID is the emergency FID received in the ranging response message. If the default service flow parameter is not predefined for the emergency service, the mobile station may establish an emergency service flow by a Dynamic Service Addition (DSA) transaction with the base station.

Method for requesting emergency service at mobile station in a wireless communication system

A frame structure supporting a relay and a method of transmitting control information for supporting a relay system are disclosed. The method of transmitting control information for supporting a relay system comprises configuring a frame to which the relay system is applied; and transmitting a first message to one or more of a mobile station and relay stations, the first message including offset information indicating a beginning time of the frame and zone allocation information indicating configuration of the frame. In this case, a downlink zone of the frame includes a downlink transmit zone and a downlink access zone.

Method of control information for supporting relay system

A handover performing method and a method of allocating a connection identifier (CID) at the time of handover are disclosed. The method includes transmitting a handover request message to a serving base station, and receiving a handover response message including CID update information used in a target base station from the serving base station. At this time, the CID update information may include a transport CID (TCID) allocation start position and a TCID allocable value used in the target base station. Accordingly, it is possible to minimize service delay of a mobile station by providing a method of updating the CID of the mobile station for performing fast handover.

Method of allocating CID for fast handover

A group scheduling method, a method for selectively receiving information elements according to group scheduling, and a Mobile Station (MS) are provided. The group scheduling method schedules allocation of resources to a plurality of mobile stations by dividing the plurality of mobile stations into at least one group. The group scheduling method includes enabling an index element in a group index corresponding to a group to which a mobile station (MS) scheduled to transmit data belongs and placing a group allocation information element including the group index at the beginning of a MAP. In this method, group scheduling information is transmitted to MSs using a group allocation IE to prevent the MSs from reading unnecessary information transmitted every frame, thereby reducing power consumption of the MSs.

Group scheduling method, method for selectively receiving information elements according to group scheduling, and mobile communication terminal

The present invention relates to method and device that controls the mobility of a terminal in a broadband wireless access system including a relay station. The present invention provides an efficient method for controlling terminal mobility of a relay station and a method for performing handover of a terminal. The method for controlling mobility of terminal at a relay station in a broadband wireless access system according to one embodiment of the present invention comprises step wherein at least one neighboring base station entity searched is added in a list, and a step wherein a broadcast message including the list is transmitted to the terminal.

Method for controlling mobility of terminal in broadband wireless access system including relay station

A method of transmitting and receiving information related to a relay station is disclosed. The present invention includes the steps of periodically receiving hop information indicating whether a hop number from the relay station to a base station is odd via a superframe header and determining a timing point for the mobile station to switch to a receive mode according to the hop information. Accordingly, a mobile station is informed of a hop number between a base station and a multi-hop relay station, whereby a waste of power of the mobile station is minimized. And, resources can be efficiently usable.

Method for transmitting and receiving information related to relay station

A method of establishing security association during handover between heterogeneous networks in a radio access system is disclosed. A method of establishing security association before handover with a target base station included in a heterogeneous radio access network is performed comprises transmitting a request message to a service base station, the request message requesting the service base station to transfer authentication related information of a mobile station to a target network authentication server; and receiving a response message from the service base station before the handover with the target base station is performed, the response message including security related information used in a target network.

Method of establishing security association in inter-rat handover

A method of allocating a radio resource in a wireless access system includes transmitting, by a base station (BS) to a mobile station (MS), a MAP message comprising a persistent MAP information element, wherein the persistent MAP information element includes resource allocation information for persistently allocating a resource allocation region for communicating data with the MS and acknowledgment (ACK) information indicating an ACK transmission region; waiting for an ACK message from the MS, wherein the ACK message represents a successful reception of the persistent MAP information element; and determining that the persistent MAP information element has not been successfully received by the MS if the ACK message is not transmitted via the ACK transmission region.

Method of allocating resource region to reduce map overhead

A data communication method is disclosed, which can simultaneously support heterogeneous systems in a wireless communication system based on multiple carrier multiple access. For a dual mode between heterogeneous systems, the data communication method includes transmitting control information for a first system mode and a second system mode to a mobile station through a channel resource zone used in the first system mode, and performing data transmission and reception between the system and the mobile station through channel resource zones allocated from the first system mode or the second system mode.

Growing community of inventors

Anyang-si, South Korea

Ae Ran Youn