Patent application number | Description | Published |
20090156192 | VERIFYING AVAILABILITY OF IDLE-MODE MOBILE SUBSCRIBER STATION IN WIRELESS ACCESS SYSTEM - A method of verifying availability of a mobile subscriber station that is in an idle-mode includes requesting to a base station by the mobile subscriber station to enter an idle-mode, wherein the base station is associated with a paging group comprising a plurality of base stations, and receiving from the base station an idle-mode response command to enter the idle-mode. The method also includes receiving from the base station a paging command comprising an action code associated with performing ranging while the mobile subscriber station is in the idle-mode to verify availability of the mobile subscriber station with respect to the base station, wherein if the ranging is not successfully performed with the base station during a predetermined period, the base station continues to transmit the paging command until a paging retrial count reaches a predetermined threshold. | 06-18-2009 |
20090170534 | VERIFYING AVAILABILITY OF IDLE-MODE MOBILE SUBSCRIBER STATION IN WIRELESS ACCESS SYSTEM - A method of verifying availability of a mobile subscriber station that is in an idle-mode includes requesting to a base station by the mobile subscriber station to enter an idle-mode, wherein the base station is associated with a paging group comprising a plurality of base stations, and receiving from the base station an idle-mode response command to enter the idle-mode. The method also includes receiving from the base station a paging command comprising an action code associated with performing ranging while the mobile subscriber station is in the idle-mode to verify availability of the mobile subscriber station with respect to the base station, wherein if the ranging is not successfully performed with the base station during a predetermined period, the base station continues to transmit the paging command until a paging retrial count reaches a predetermined threshold. | 07-02-2009 |
20090170535 | VERIFYING AVAILABILITY OF IDLE-MODE MOBILE SUBSCRIBER STATION IN WIRELESS ACCESS SYSTEM - A method of verifying availability of a mobile subscriber station that is in an idle-mode includes requesting to a base station by the mobile subscriber station to enter an idle-mode, wherein the base station is associated with a paging group comprising a plurality of base stations, and receiving from the base station an idle-mode response command to enter the idle-mode. The method also includes receiving from the base station a paging command comprising an action code associated with performing ranging while the mobile subscriber station is in the idle-mode to verify availability of the mobile subscriber station with respect to the base station, wherein if the ranging is not successfully performed with the base station during a predetermined period, the base station continues to transmit the paging command until a paging retrial count reaches a predetermined threshold. | 07-02-2009 |
20090176491 | MESSAGE TRANSMISSION IN WIRELESS ACCESS SYSTEM - A method for transmitting messages to alter the operating status between a mobile station and a base station in a wireless access system comprises, at the mobile station, transmitting a first message to the base station, setting a first count to a first predetermined value and enabling a first, the first message requesting a alteration in operating status between the mobile station and the base station, whereupon expiration of the first timer before receiving a second message from the base station, the count is decremented and, if the count is above a second predetermined value, the first timer is reset and the first message is retransmitted to the base station. The method also comprises, at a base station, receiving the first message, transmitting a second message to the mobile station and enabling a second timer, whereupon expiration of the second timer, the alteration in operating status is effected. | 07-09-2009 |
20090185519 | METHOD OF UPDATING CHANNEL INFORMATION BY A MOBILE STATION THAT IS IN POWER SAVING MODE - A method of updating channel information by a mobile station (MS) that is in power saving mode is disclosed. More specifically, the method includes the MS which receives status information of a first channel descriptor and transmission frame information which includes when the first channel descriptor is to be transmitted. Furthermore, the MS compares status information of the first channel descriptor with status information of a second channel descriptor. Here, the second channel descriptor is stored in the MS. Lastly, if the compared status information are different, the MS receives the first channel descriptor according to the transmission frame information. | 07-23-2009 |
20090191908 | METHOD OF UPDATING CHANNEL INFORMATION BY A MOBILE STATION THAT IS IN POWER SAVING MODE - A method of updating channel information by a mobile station (MS) that is in power saving mode is disclosed. More specifically, the method includes the MS which receives status information of a first channel descriptor and transmission frame information which includes when the first channel descriptor is to be transmitted. Furthermore, the MS compares status information of the first channel descriptor with status information of a second channel descriptor. Here, the second channel descriptor is stored in the MS. Lastly, if the compared status information are different, the MS receives the first channel descriptor according to the transmission frame information. | 07-30-2009 |
20090191909 | METHOD OF UPDATING CHANNEL INFORMATION BY A MOBILE STATION THAT IS IN POWER SAVING MODE - A method of updating channel information by a mobile station (MS) that is in power saving mode is disclosed. More specifically, the method includes the MS which receives status information of a first channel descriptor and transmission frame information which includes when the first channel descriptor is to be transmitted. Furthermore, the MS compares status information of the first channel descriptor with status information of a second channel descriptor. Here, the second channel descriptor is stored in the MS. Lastly, if the compared status information are different, the MS receives the first channel descriptor according to the transmission frame information. | 07-30-2009 |
20090197601 | METHOD OF UPDATING CHANNEL INFORMATION BY A MOBILE STATION THAT IS IN POWER SAVING MODE - A method of updating channel information by a mobile station (MS) that is in power saving mode is disclosed. More specifically, the method includes the MS which receives status information of a first channel descriptor and transmission frame information which includes when the first channel descriptor is to be transmitted. Furthermore, the MS compares status information of the first channel descriptor with status information of a second channel descriptor. Here, the second channel descriptor is stored in the MS. Lastly, if the compared status information are different, the MS receives the first channel descriptor according to the transmission frame information. | 08-06-2009 |
20090215458 | MESSAGE TRANSMISSION IN WIRELESS ACCESS SYSTEM - A method for transmitting messages to alter the operating status between a mobile station and a base station in a wireless access system comprises, at the mobile station, transmitting a first message to the base station, setting a first count to a first predetermined value and enabling a first, the first message requesting a alteration in operating status between the mobile station and the base station, whereupon expiration of the first timer before receiving a second message from the base station, the count is decremented and, if the count is above a second predetermined value, the first timer is reset and the first message is retransmitted to the base station. The method also comprises, at a base station, receiving the first message, transmitting a second message to the mobile station and enabling a second timer, whereupon expiration of the second timer, the alteration in operating status is effected. | 08-27-2009 |
20090219852 | METHOD OF CONTROLLING RELAY COMMUNICATION - 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 and compares the measured channel quality with a threshold and transmits a report message to the BS according to the comparison. The report message is to request the BS to measure a channel quality of at least one of a second RS and the first terminal in communication with the BS. | 09-03-2009 |
20100009624 | METHOD OF PERFORMING RANGING THROUGH RELAY STATION AND SUPPORTING THEREOF - A method of performing ranging through a relay station (RS) and supporting thereof is disclosed. If ranging is performed in a system which performs communication between a mobile station and a base station through relay of a relay station, the ranging is performed under the leading of the relay station. In other words, if the relay station determines whether ranging between the mobile station and the relay station is required and also determines transmission parameter adjustment values and reports the determined result to the base station, the base station performs the ranging in such a manner that it prepares a message suitable for a specific format and forwards the message to the mobile station through the relay station. | 01-14-2010 |
20100046413 | COMMUNICATION METHOD USING RELAY STATION IN MOBILE COMMUNICATION SYSTEM - 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. | 02-25-2010 |
20100150044 | METHOD OF PERFORMING ACTIONS RELATED TO HANDOVER BY A MOBILE STATION THAT IS IN POWER SAVING MODE IN A WIRELESS MOBILE COMMUNICATION SYSTEM - A method of performing actions related to handover by a mobile station (MS) in a wireless mobile communication system is disclosed. More specifically, the MS receives information from a base station (BS), wherein the information includes at least one action for performing handover and at least one condition corresponding to the at least one action. Furthermore, the MS transmits a request message to perform the at least one action based on the received information from the BS and receives a response message in response to the request message. Lastly, the MS performs the at least one action according to the received response message. | 06-17-2010 |
20110009144 | METHOD OF UPDATING CHANNEL INFORMATION BY A MOBILE STATION THAT IS IN POWER SAVING MODE - A method of updating channel information by a mobile station (MS) that is in power saving mode is disclosed. More specifically, the method includes the MS which receives status information of a first channel descriptor and transmission frame information which includes when the first channel descriptor is to be transmitted. Furthermore, the MS compares status information of the first channel descriptor with status information of a second channel descriptor. Here, the second channel descriptor is stored in the MS. Lastly, if the compared status information are different, the MS receives the first channel descriptor according to the transmission frame information. | 01-13-2011 |
20110116430 | METHOD OF SUPPORTING OPERATION OF SLEEP MODE IN A WIDEBAND RADIO ACCESS SYSTEM - A method of supporting operation of sleep mode in a wideband radio access system is disclosed. More specifically, a mobile subscriber station (MSS) which determines a frame offset information for synchronizing listening windows of at least one MSS that is in sleep mode, and transmits the determined framed offset information to at least one MSS. | 05-19-2011 |
20120014302 | METHOD OF PERFORMING ACTIONS RELATED TO HANDOVER BY A MOBILE STATION THAT IS IN POWER SAVING MODE IN A WIRELESS MOBILE COMMUNICATION SYSTEM - A method of performing actions related to handover by a mobile station (MS) in a wireless mobile communication system is disclosed. More specifically, the MS receives information from a base station (BS), wherein the information includes at least one action for performing handover and at least one condition corresponding to the at least one action. Furthermore, the MS transmits a request message to perform the at least one action based on the received information from the BS and receives a response message in response to the request message. Lastly, the MS performs the at least one action according to the received response message. | 01-19-2012 |
20120014303 | METHOD OF PERFORMING ACTIONS RELATED TO HANDOVER BY A MOBILE STATION THAT IS IN POWER SAVING MODE IN A WIRELESS MOBILE COMMUNICATION SYSTEM - A method of performing actions related to handover by a mobile station (MS) in a wireless mobile communication system is disclosed. More specifically, the MS receives information from a base station (BS), wherein the information includes at least one action for performing handover and at least one condition corresponding to the at least one action. Furthermore, the MS transmits a request message to perform the at least one action based on the received information from the BS and receives a response message in response to the request message. Lastly, the MS performs the at least one action according to the received response message. | 01-19-2012 |
20120015658 | METHOD OF PERFORMING ACTIONS RELATED TO HANDOVER BY A MOBILE STATION THAT IS IN POWER SAVING MODE IN A WIRELESS MOBILE COMMUNICATION SYSTEM - A method of performing actions related to handover by a mobile station (MS) in a wireless mobile communication system is disclosed. More specifically, the MS receives information from a base station (BS), wherein the information includes at least one action for performing handover and at least one condition corresponding to the at least one action. Furthermore, the MS transmits a request message to perform the at least one action based on the received information from the BS and receives a response message in response to the request message. Lastly, the MS performs the at least one action according to the received response message. | 01-19-2012 |
20120087291 | METHOD OF SUPPORTING OPERATION OF SLEEP MODE IN A WIDEBAND RADIO ACCESS SYSTEM - A method of indicating downlink traffic to a mobile subscriber station that is in a sleep mode includes transmitting a sleep request message to a base station (BS); entering the sleep mode in response to a sleep response message received from the BS, wherein the sleep response message includes a first SLPID; receiving a traffic indication message including a FMT field indicating formats for the traffic indication message from the BS during a listening interval of the sleep mode, wherein the FMT field indicates one of an SLPID bitmap based format and an SLPID based format, and the traffic indication message further includes a second SLPID when the SLPID based format is used; and terminating the sleep mode to receive the downlink traffic when the second SLPID in the traffic indication message is same as the first SLPID included in the sleep response message. | 04-12-2012 |
20130010677 | METHOD OF CONTROLLING RELAY COMMUNICATION - 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. | 01-10-2013 |
20140087771 | VERIFYING AVAILABILITY OF IDLE-MODE MOBILE SUBSCRIBER STATION IN WIRELESS ACCESS SYSTEM - A method of verifying availability of a mobile subscriber station that is in an idle-mode includes requesting to a base station by the mobile subscriber station to enter an idle-mode, wherein the base station is associated with a paging group comprising a plurality of base stations, and receiving from the base station an idle-mode response command to enter the idle-mode. The method also includes receiving from the base station a paging command comprising an action code associated with performing ranging while the mobile subscriber station is in the idle-mode to verify availability of the mobile subscriber station with respect to the base station, wherein if the ranging is not successfully performed with the base station during a predetermined period, the base station continues to transmit the paging command until a paging retrial count reaches a predetermined threshold. | 03-27-2014 |