Patent application number | Description | Published |
20120230243 | METHOD AND APPARATUS FOR EFFICIENTLY RECEIVING BROADCAST CONTROL MESSAGE USING MAC PDU HEADER IN WIRELESS ACCESS SYSTEM - Disclosed is a method of driving a terminal for receiving a broadcast control message formed of a MAC PDU from a wireless access system. The method includes receiving at least one broadcast control message from a base station in a resource region where a broadcast control message is transmitted, extracting broadcast control message type information that represents the kind of a broadcast control message included in the header of the received broadcast control message, and checking the extracted broadcast control message type information and determining whether payload of the received broadcast message is decoded. | 09-13-2012 |
20120314638 | METHOD AND APPARATUS OF OPERATING IN IDLE MODE IN WIRELESS COMMUNICATION SYSTEM - A method of monitoring a paging message in a wireless communication system, which is performed by a mobile station operating in an idle mode including a paging listening interval and a paging unavailable interval, includes receiving a segment of the paging message comprising a plurality of segments during the paging listening interval, the received segment of the paging message including an extension flag indicating whether a remaining segment of the paging message exists; monitoring at least one subsequent subframe or frame to receive the remaining segment of the paging message while the mobile station remains awake if the extension flag indicates that the remaining segment of the paging message exists; and entering the paging unavailable interval if the mobile station is not paged after receiving all segments of the paging message. | 12-13-2012 |
20130028165 | METHOD AND APPARATUS FOR UPDATING MULTICAST AND BROADCAST SERVICE SYSTEM INFORMATION IN A WIRELESS ACCESS SYSTEM - The present description relates to a method for updating E-MBS-related system information in an idle mode state, comprising the following steps: receiving, from a base station, a first system configuration descriptor (SCD) message containing an E-MBS-related parameter; receiving, from the base station, a first message containing an indicator for indicating whether or not to change the E-MBS-related parameter; and, if the indicator indicates that the E-MBS-related parameter is to be changed, shifting from the idle mode state to a connected mode state. | 01-31-2013 |
20130028227 | METHOD AND APPARATUS FOR PERSISTENT RESOURCE ALLOCATION IN A WIRELESS ACCESS SYSTEM - The present description relates to a method for persistent resource allocation in a wireless access system, comprising the following steps: receiving a first MAP message containing persistent resource allocation information from a base station; transceiving data bursts to/from the base station via the persistent resource domain contained in the persistent resource allocation information; and receiving a second MAP message containing persistent resource de-allocation type information from the base station, wherein said persistent resource de-allocation type information indicates whether a de-allocation of persistently allocated resources is a persistent de-allocation or a temporary de-allocation. | 01-31-2013 |
20130040680 | METHOD AND APPARATUS FOR ALLOCATING DEVICE IDENTIFIERS (STID) IN A WIRELESS ACCESS SYSTEM - The present description provides a method for allocating a device identifier through an initial network entry process with a base station in a wireless access system. The method comprises a step of transmitting control information, indicating a mobile station supporting Machine to Machine (M2M) communication, to a base station; and receiving a first message, comprising at least one of a first identifier indicative of a group to which devices belong and a second identifier indicative of each of the devices belonging to the group, from the base station. | 02-14-2013 |
20130044592 | APPARATUS AND METHOD FOR SCHEDULING OF ADAPTIVE GRANT AND POLLING SERVICE IN A BROADBAND WIRELESS ACCESS SYSTEM - Disclosed is a method for performing uplink scheduling for an adaptive grant and polling (aGP) service in a broadband wireless access system, the method comprising: transmitting a first message for requesting the switching or changing of a QoS (quality of service) parameter set to a base station; receiving, from the base station, a service specific scheduling control header including adaptation start time information for adapting a new QoS parameter set; and switching or changing to the new QoS parameter set at the checked adaptation start time after checking the adaptation start time information within the received service specific scheduling control. | 02-21-2013 |
20130058280 | PAGING METHOD AND DEVICE FOR E-MBS TERMINAL IN MULTI-CARRIER SYSTEM - The present invention provides a method for receiving a paging message of an idle-mode terminal in a multi-carrier system, comprising the steps of: receiving, from a network, a paging message through a first carrier corresponding to a predetermined condition in a paging listening interval; transmitting, to the network, a first ranging request message that includes control information indicative of a location updating procedure for notifying a start of E-MBS service reception; determining, as a paging carrier, a second carrier from which an E-MBS service is transmitted; and receiving the paging message from the network through the determined second carrier. | 03-07-2013 |
20130136053 | APPARATUS AND METHOD FOR PERFORMING HARQ RETRANSMISSION PROCESS TO RECEIVE E-MBS SERVICE IN A MULTI-CARRIER SYSTEM - Disclosed is a method for receiving E-MBS service by performing a carrier switching operation in a multi-carrier system, the method comprising: performing carrier switching from primary carrier to secondary carrier; checking whether the uplink HARQ retransmission process is performed when the carrier switching is performed; and terminating or suspending the performing uplink HARQ retransmission process if the uplink HARQ retransmission process is performed. | 05-30-2013 |
20130155993 | METHOD AND APPARATUS FOR ALLOCATING A HYBRID AUTOMATIC REPEAT REQUEST CHANNEL IDENTIFIER IN A WIRELESS ACCESS SYSTEM - A method for allocating a HARQ channel identifier (ACID) in a wireless access system includes receiving, from a base station, a first message which includes control information indicating an initial value of a HARQ channel identifier mapped onto a specific service flow, via a dynamic service procedure coupled to a base station; receiving a second message indicating persistent resource allocation from the base station, the second message including information regarding the initial value and number of the ACID used in the persistent resource allocation; comparing the initial value of the ACID with the control information; and allocating the value of the ACID used in the persistent resource allocation to the specific service flow when the control information included in the first message is the same as the initial value of the ACID included in the second message as a result of the comparison. | 06-20-2013 |
20130196661 | METHOD AND APPARATUS FOR DETERMINING DATA TRANSRECEIVING PATH IN RADIO ACCESS SYSTEM SUPPORTING MULTI-RAT - A method for transreceiving data disclosed in the present invention is a method for a terminal transreceiving between a first base station supporting a first radio access technology (RAT) and a second base station supporting a second RAT in a radio access system supporting Multi-RAT, and comprises the following steps: receiving access information for the second base station from the first base station; accessing the second base station based on access information of the second base station; transmitting to the first base station command information including an address on the second RAT, which is used for accessing the second base station; and transreceiving data having a first flow ID from the first base station through the first RAT, and transreceiving data having a second flow ID from the second base station through the second RAT. | 08-01-2013 |
20130210467 | APPARATUS AND METHOD FOR RECEIVING PAGING MESSAGE IN WIRELESS ACCESS SYSTEM - Disclosed is a method for receiving a paging message by a mobile station in an idle mode including an unavailable interval (UAI) and an available interval (AI) in a wireless access system, including: checking whether or not system information has been changed during the UAI; when the system information has been changed during the UAI, updating the system information during the UAI; and receiving the paging message from a base station (BS) during the AI. | 08-15-2013 |
20130242848 | M2M DEVICE AND BASE STATION FOR TRANSMISSION AND RECEPTION OF MULTICAST TRAFFIC AND METHOD FOR TRANSMISSION AND RECEPTION OF MULTICAST TRAFFIC - A method for performing communication of a machine to machine (M2M) device with a base station comprises the steps of receiving a paging message from the base station; and receiving multicast data from the base station on the basis of the paging message, wherein the paging message includes time information indicating the time when the base station transmits the multicast data to the M2M device. | 09-19-2013 |
20130252610 | METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A WIRELESS ACCESS SYSTEM - The present invention relates to a method in which an M2M device transceives data to/from a base station in a wireless access system. The method comprises: a step of receiving, from the base station, a first message containing an available interval or an M2M device ID shared among M2M devices, and an M2M device ID use period in which said available interval periodically repeats; and a step of transceiving data to/from the base station using the M2M device ID in the available interval. | 09-26-2013 |
20130252643 | METHOD FOR TRANSMITTING AND RECEIVING IDLE-MODE PARAMETER UPDATE INFORMATION, AND APPARATUS THEREFOR - Disclosed is a method for transmitting and receiving idle-mode parameter update information and an apparatus therefor. A machine-to-machine (M2M) device for receiving idle-mode parameter update information in a wireless communication system comprises: a receiver for receiving, from a base station, a paging message including an M2M group identifier (ID) field indicating an M2M group ID and an action code field indicating an idle-mode parameter update; and a processor that decodes the action code field when said M2M group ID corresponds to the M2M group ID of the processor, to thereby acquire information which indicates that said paging message is a message relating to the idle mode parameter update. The paging message may further include an updated M2M group ID field indicating an updated M2M group ID, and the processor may decode the updated M2M group ID field to thereby acquire updated M2M group ID information. | 09-26-2013 |
20130260801 | APPARATUS AND METHOD FOR TRANSCEIVING MULTICAST TRAFFIC IN A WIRELESS ACCESS SYSTEM SUPPORTING MACHINE-TO-MACHINE COMMUNICATION - Disclosed is a method for receiving multicast traffic by a mobile station in an idle mode in a wireless access system supporting machine-to-machine (M2M) communication. The method comprises: receiving a paging message including control information indicating a multicast traffic reception during a paging listening interval from a base station (BS); and receiving multicast traffic from the BS without idle mode termination based on the received control information, wherein the paging message further includes identification information indicating an M2M group to which the multicast traffic is transmitted. | 10-03-2013 |
20130301515 | METHOD FOR RECEIVING MULTICAST DATA IN M2M DEVICE INCLUDED IN WIRELESS COMMUNICATION SYSTEM AND M2M DEVICE THEREFOR - Disclosed are a method for receiving multicast data in a machine to machine (M2M) device in a wireless communication system and an M2M device therefor. The M2M device receiving multicast data according to the present invention, includes a receiver receiving multicast control information for transmitting multicast data from a base station, and the multicast control information includes a retransmission indicator field which indicates whether corresponding multicast data is retransmitted or not. | 11-14-2013 |
20130315074 | METHOD FOR TRANSMITTING AND RECEIVING POWER OUTAGE REPORT AND DEVICE THEREFOR - Disclosed are a method for transmitting and receiving a power outage report and a device therefor. According to the present invention, a method for allowing a machine to machine (M2M) device to transmit a power outage report comprises a step of transmitting, to a base station, a first message which contains a bandwidth request (BR) index value defined in advance if a power outage occurs, wherein said BR index value defined in advance is allocated to indicate to said M2M device that the power outage has occurred. | 11-28-2013 |
20130315129 | METHOD FOR RECEIVING MULTICAST DATA IN WIRELESS COMMUNICATION SYSTEM AND M2M DEVICE THEREFOR - Disclosed are a method for receiving multicast data in a wireless communication system and a machine to machine (M2M) device therefor. The method wherein the M2M device receives multicast data in a wireless communication system according to the present invention includes the steps of: receiving multicast data from a base station; and indicating that the multicast data transmitted from the base station is the last multicast or receiving information including a signal which indicates the end of multicast transmission. The information can be transmitted with or separate from the multicast data, and is piggybacked with the multicast data if the information is transmitted with the multicast data. | 11-28-2013 |
20130336278 | METHOD FOR TRANSMITTING/RECEIVING CONTROL INFORMATION FOR AN M2M DEVICE, AND DEVICE FOR SAME - The present invention relates to a method for transmitting/receiving control information for an M2M device, and a device for same. A method of transmitting Machine to machine (M2M) device control information from a base station in a wireless communication system according to an embodiment of the present invention includes: transmitting a first message including at least one M2M identifier (ID) field to the at least one M2M device; and transmitting at least one second message including resource allocation information for the at least one M2M device to the at least one M2M device. The first and second messages have different types of formats. | 12-19-2013 |
20140010141 | METHOD FOR TRANSMITTING AND RECEIVING MULTICAST-DATA-RELATED INFORMATION BY A MACHINE-TO-MACHINE (M2M) DEVICE IN A WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - Disclosed is a method for transmitting and receiving multicast-data-related information by a machine-to-machine (M2M) device in a wireless communication system, and an apparatus therefor. The method for receiving multicast-data-related information by a machine-to-machine device according to one embodiment of the present invention comprises the following steps: receiving a first message including multicast traffic receiving timer information from a base station; receiving a paging message from the base station; and starting a multicast traffic receiving timer from the point in time indicated by the paging message or from the point in time of receiving the paging message, in accordance with the first message and the paging message. The multicast traffic receiving timer information may include information on a time interval during which the M2M device waits to receive the M2M multicast data in an idle mode. | 01-09-2014 |
20140044205 | METHOD OF TRANSMITTING AND RECEIVING MIMO FEEDBACK INFORMATION IN WIRELESS COMMUNICATION SYSTEM, MOBILE STATION AND BASE STATION - A method of transmitting an MIMO (multiple input multiple output) feedback information, which is transmitted by a mobile station in a wireless communication system, is disclosed. The present invention includes sending a ranging request message to a base station and receiving a ranging response message from the base station in response to the ranging request message, wherein the mobile station comprises a fixed M2M (machine to machine) device and wherein the ranging request message contains the MIMO feedback information. | 02-13-2014 |
20140092801 | METHOD AND APPARATUS FOR TRANSMITTING MULTICAST DATA TO M2M DEVICES IN A WIRELESS ACCESS SYSTEM - The present invention relates to a method for transmitting multicast data to M2M devices, to a method for transmitting a reliable MAC control message, and to devices for supporting the methods. The method for receiving multicast data by an idle-mode M2M device in a wireless access system comprises the following steps: receiving a paging group identifier information message, including a multicast traffic indication (MTI) field indicating whether a paging message is transmitted; monitoring a paging frame for receiving the paging message in a paging listening period in an idle mode; if the paging message is not received in the paging frame, transmitting a ranging request message including an M2M operation code and an M2M group identifier; and receiving a ranging response message, including an M2M response code and a multicast transmission start time (MTST) field. | 04-03-2014 |
20140119201 | METHOD FOR PERFORMING RANDOM ACCESS PROCEDURE FOR REPORTING ABNORMAL POWER OUTAGE IN WIRELESS ACCESS SYSTEM SUPPORTING M2M ENVIRONMENT - The present invention provides a variety of methods for an M2M terminal reporting a power outage when an abnormal power outage occurs, and apparatuses for supporting same. A method for performing a random access procedure for reporting the abnormal power outage in the wireless access system supporting an M2M environment, according to one embodiment of the present invention, comprises the steps of: an M2M device receiving a message comprising an abnormal power outage ranging backoff starting parameter and an abnormal power outage ranging backoff ending parameter, which are used for reporting the abnormal power outage; entering an idle mode; and performing the random access procedure for reporting the abnormal power outage using the abnormal power outage ranging backoff starting parameter and/or the abnormal power outage ranging backoff ending parameter, when the abnormal power outage occurs in the idle mode. | 05-01-2014 |
20140126459 | METHOD AND APPARATUS FOR TRANSMITTING BROADCASTING MESSAGE IN WIRELESS ACCESS SYSTEM SUPPORTING M2M ENVIRONMENT - The present invention relates to a wireless access system supporting an M2M environment, and provides a method and an apparatus for broadcasting a medium access control (MAC) control message. A method for receiving a broadcasting message from the wireless access system supporting the M2M environment, according to one embodiment of the present invention, comprises the steps of: an M2M equipment receiving a broadcast allocation map information element including a message type field, which shows the type of the broadcasting message, and resource allocation information, which shows an allocation region of a broadcasting burst from which the broadcasting message is transmitted; and the M2M equipment confirming the type of the broadcasting message which is shown by the message type field, wherein when the broadcasting message type is related to the M2M equipment, the M2M equipment receives the broadcasting message through the broadcasting burst that is indicated by the resource allocation information, and when the broadcasting message type is not related to the M2M equipment, the M2M equipment does not decode the broadcasting burst that is indicated by the resource allocation information. | 05-08-2014 |
20140140261 | METHOD OF RECEIVING MULTICAST DATA IN A WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME - The present invention relates to a method of receiving multicast data in a wireless communication system for supporting Machine to Machine Communication, and a device for same. In more detail, the method includes: receiving a paging message including information on the timing at which the transmission of multicast data from a base station is completed in a paging listening interval; receiving the multicast data from the base station; and entering an unavailable interval when the timing is reached, at which the transmission of the multicast data is completed. | 05-22-2014 |
20140146767 | METHOD AND APPARATUS FOR TRANSMITTING M2M RANGING INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - A method for transmitting Machine to Machine (M2M) ranging information in a wireless communication system is disclosed. The method includes transmitting an Uplink Channel Descriptor (UCD) including an M2M ranging region Type/Length/Value (TLV). When the UCD is transmitted, a ranging region TLV identifying the same region as the M2M ranging region TLV is included in the UCD. | 05-29-2014 |
20140153518 | METHOD AND APPARATUS FOR TRANSMITTING M2M RANGING INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - A method for transmitting Machine to Machine (M2M) ranging information in a wireless communication system is disclosed. The method includes transmitting an M2M ranging allocation UL MAP extended Information Element (IE) including M2M ranging region information. When the M2M ranging allocation UL MAP extended IE is transmitted, an UL MAP IE with the same region as the M2M ranging allocation UL MAP extended IE is transmitted and an Uplink Interval Usage Code of the UL MAP IE is 12. | 06-05-2014 |
20140177502 | METHOD AND APPARATUS FOR SUPPORTING HARQ OPERATION USING HARQ CHANNEL IDENTIFIER IN WIRELESS ACCESS SYSTEM - As an embodiment of the present invention, a method for supporting a HARQ operation of M2M devices using a HARQ Channel Identifier (ACID) in a wireless access system includes transmitting, at a base station, a second UL A-MAP IE to M2M devices sharing a station identifier (STID) in a subframe in which a second M2M device is to retransmit a UL burst, wherein the second UL A-MAP IE includes resource allocation information for allocating a resource region to a first M2M device and includes a second ACID, receiving the UL burst retransmitted using a first ACID from the second M2M device in the subframe, and receiving a new UL burst transmitted using the second ACID from the first M2M device in the subframe, wherein the first and second M2M devices share the STID, and the first and second ACIDs are different from each other. | 06-26-2014 |
20140192731 | METHOD FOR ALLOCATING A RANGING CHANNEL IN A WIRELESS COMMUNICATION SYSTEM AND BASE STATION FOR SAME - Disclosed is a method for allocating a ranging channel in a wireless communication system that supports machine to machine communication, and to a base station for same. More particularly, the method comprises the steps of: transmitting a message including a dedicated connection identifier (CID) dedicatedly allocated to a device that supports machine to machine communication; allocating a dedicated ranging area for transmission of a ranging request message to the device that supports machine to machine communication; and transmitting an uplink map (UL-MAP) message including information on the dedicated CID and the dedicated ranging area to the device that supports machine to machine communication. | 07-10-2014 |
20140204831 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING MULTICAST DATA IN WIRELESS COMMUNICATION SYSTEM - An apparatus and method for transmitting/receiving multicast data in a wireless communication system are disclosed. The method of receiving multicast data at a machine-to-machine (M2M) device in a wireless communication system includes: receiving, from a base station (BS), an M2M multicast connection identifier for an M2M multicast service, assigned to the M2M device; receiving a message including control information about transmission of the multicast data and multicast data including an M2M multicast connection identifier from the BS; and determining whether the M2M multicast connection identifier included in the multicast data corresponds to the M2M multicast connection identifier assigned by the BS. | 07-24-2014 |
20140221036 | METHOD FOR UPDATING TERMINAL GROUP IDENTIFIER IN MACHINE-TO-MACHINE COMMUNICATION - Disclosed is a method for a terminal, which is in an idle state in a wireless access system that supports machine-to-machine (M2M) communication, updating an M2M group identifier (MGID), which identifies a multicast service flow that is shared by a group of M2M terminals inside an M2M group zone. The method can comprises the steps of: receiving from a first base station the MGID and the M2M group zone identifier of the first base station; receiving from a second base station an M2M group zone identifier of the second base station; requesting from the second base station an MGID update when the M2M group zone identifier of the second base station is different from the M2M group zone identifier of the first base station; and updating the MGID on the basis of a new MGID that is transmitted from the second base station as a response to the request. | 08-07-2014 |
20140247795 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING PERSISTENT SCHEDULING CHANGE INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting and receiving persistent scheduling change information are disclosed. A machine-to-machine (M2M) device for receiving persistent scheduling change information in a wireless communication system includes a receiver for receiving, from a BS, a message comprising allocation period information including a persistent allocation period, wherein the message further comprises changed resource allocation information, when the allocation period information indicates temporal change or one time reallocation of uplink persistent allocation for the M2M device. | 09-04-2014 |
20140293861 | APPARATUS FOR TRANSMITTING/RECEIVING MULTICAST DATA IN WIRELESS COMMUNICATION SYSTEM AND METHOD THEREOF - An apparatus for transmitting/receiving multicast data in a wireless communication system and method thereof are disclosed. The present invention includes receiving information including an M2M group identifier (MGID) assigned to an M2M (machine-to-machine) device from a base station, receiving a message related to M2M multicast assignment having the MGID information applied thereto from the base station, and receiving the multicast data from the base station in accordance with instruction of the message from the base station, wherein the multicast data comprises a flow identifier (FID) field in a MAC header of a MAC PDU (medium access control packet data unit) for a multicast service flow and wherein the FID field is set to a specific value. | 10-02-2014 |
20140293967 | METHOD AND APPARATUS FOR REPORTING ABNORMAL POWER OUTAGE IN WIRELESS ACCESS SYSTEM SUPPORTING M2M ENVIRONMENTS - A method and apparatus for transmitting and receiving a power outage report message of M2M device is disclosed. A method for reporting an abnormal power outage event in a wireless access system that supports M2M environment comprises the steps of detecting the abnormal power outage even in an M2M device of a connected state in a normal mode; and transmitting a signaling header from the M2M device to a base station, the signaling header including a power outage indicator for reporting the abnormal power outage event. | 10-02-2014 |
20140307618 | METHOD AND APPARATUS FOR MULTICASTING A MEDIUM ACCESS CONTROL (MAC) CONTROL MESSAGE IN WIRELESS ACCESS SYSTEM - A wireless access system supporting an M2M environment and, more particularly, a method and apparatus for multicasting a MAC control message respective to an M2M device is disclosed herein. According to an exemplary embodiment, a method for multicasting a MAC control message may include the steps of receiving a paging message including an MGID identifying an M2M group to which the corresponding M2M device belongs and an indicator indicating a multicast data transmission for the M2M device, receiving an M2M MA A-MAP IE including resource assignment information indicating a resource region to which the MAC control message respective to the corresponding M2M device is being transmitted, and, when a CRC bit being masked to the M2M MA A-MAP IE includes the MGID, receiving a MAC PDU being accompanied by the MAC control message being multicast through the resource region indicated by the resource assignment information. | 10-16-2014 |
20140314043 | METHOD AND APPARATUS FOR TRANSMITTING A MAC CONTROL MESSAGE IN WIRELESS ACCESS SYSTEM - A method for transmitting a Medium Access Control (MAC) control message for an M2M device and an apparatus for supporting the same are disclosed herein. According to an exemplary embodiment, a method for transmitting a MAC control message includes the steps of receiving a broadcast assignment map information element (BA A-MAP IE) including a function index field and broadcast assignment information for the M2M device, and wherein the broadcast assignment information indicates a resource region to which the MAC control message is being transmitted, and, when a cyclic redundancy check (CRC) bit masked to the BA A-MAP IE indicates that the BA A-MAP IE is for a M2M broadcast assignment, receiving the MAC control message through the resource region, which is indicated by the broadcast assignment information. | 10-23-2014 |
20140369288 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING PERSISTENT SCHEDULING INFORMATION IN WIRELESS COMMUNICATION SYSTEM - An apparatus and method for transmitting and receiving persistent scheduling information are provided. A machine-to-machine (M2M) device for receiving persistent scheduling information in a wireless communication system includes a receiver configured to receive, from a BS, a message comprising allocation period information including a persistent allocation period for the M2M device, wherein the message further comprises de-allocation information that indicates whether the de-allocation corresponds to a permanent de-allocation or one-time de-allocation when the allocation period information indicates a de-allocation, and wherein the message does not comprise information about HARQ feedback allocation when the de-allocation information indicates the one-time de-allocation. | 12-18-2014 |
20140376442 | METHOD AND APPARATUS FOR BROADCASTING A MAC CONTROL MESSAGE IN WIRELESS ACCESS SYSTEM - A wireless access system supporting an M2M environment and, more particularly, a method and apparatus for broadcasting a Medium Access Control (MAC) control message respective to an M2M device is disclosed herein. According to an exemplary embodiment, a method for broadcasting a control message to the M2M device in a wireless access system may include the steps of receiving a downlink MAP information element (IE), wherein the downlink MAP IE includes resource assignment information indicating a resource region, to which the control message is being transmitted, and an M2M management CID, and receiving a Medium Access Control Protocol Data Unit (MAC PDU), wherein the MAC PDU carries the control message being broadcasted from the resource region. At this point, the MAC PDU may include the M2M management CID and an M2M connection identifier (M2MCID), and the M2MCID may identify a M2M group to which the corresponding M2M device belongs. | 12-25-2014 |
20150023236 | METHOD BY WHICH STATIONS OPERATING IN POWER SAVE MODE IN WIRELESS LAN SYSTEMS TRANSMIT AND RECEIVE FRAMES, AND APPARATUS FOR SUPPORTING SAME - The present invention relates to a method by which a station (STA) which operates in power save mode in a wireless LAN system transmits and receives frames. The method includes the steps of: obtaining a channel access authority on the basis of at least one slot time, wherein each slot time is the unit time when a channel is maintained in an idle state for a channel access by the STA; transmitting a power save (PS) poll frame requesting the transmission of a buffered frame to an access point (AP); and receiving a response frame from the AP in response to the PS poll frame. The length of each slot time is set to be longer than the transmission time of the PS poll frame. | 01-22-2015 |
20150023272 | METHOD FOR TRANSMITTING DATA UNITS IN WIRELESS LAN SYSTEMS AND APPARATUS FOR SUPPORTING SAME - The present invention relates to a method for transmitting data units in wireless LAN systems. The method includes the steps of generating a short training field (STF) for a first channel, generating a long training field (LTF) for the first channel, duplicating the STF on at least one second channel, duplicating the LTF on at least one second channel, transmitting the STF and the one or more duplicated STFs through a transmission channel, transmitting the LTF and the one or more duplicated LTFs through the transmission channel, and transmitting a data field through the transmission channel. | 01-22-2015 |
20150043409 | METHOD FOR TRANSMITTING AND RECEIVING SIGNAL OF STATION OPERABLE IN POWER SAVING MODE IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR - One embodiment of the present invention relates to a method for transmitting a signal of a station (STA) operable in a power saving mode in a wireless communication system, and the method for transmitting a signal comprises a step of transmitting a PS-Poll frame and/or a trigger frame according to a first time period, wherein an integrated scaling factor is applied to the first time period, and the integrated scaling factor is also commonly applied to a second time period in which the STA can omit frame transmission by maintaining an association state with an access point (AP). | 02-12-2015 |
20150043558 | METHOD AND APPARATUS FOR CHANNEL ACCESS IN WIRELESS LAN SYSTEM - The present invention relates to a wireless communication system, and more particularly, to a method and an apparatus for accessing a channel in a wireless LAN system. According to one embodiment of the present invention, a method for performing channel access by a station (STA) of a wireless communication system comprises: a step of receiving, from an access point (AP), information about the time window which does not allow channel access of a traffic indication map (TIM) mode STA; and a step of performing channel access based on the time window. In the event that the STA is a non-TIM mode STA, the channel access is performed in the time window. In the event that the STA is a TIM mode STA, the channel access is performed in the time interval indicated by the TIM, excluding the time window. | 02-12-2015 |
20150063232 | METHOD FOR TRANSMITTING AND RECEIVING TRAFFIC INDICATION MAPS IN WIRELESS COMMUNICATION SYSTEMS AND APPARATUS FOR SAME - The present invention relates to a method for transmitting and receiving a traffic indication map in a wireless communication system, and to an apparatus for same. More particularly, the method includes a step of transmitting a traffic indication map (TIM) to a station (STA) through a beacon frame, wherein the TIM can include a bitmap field configured of one or more sub-block bitmaps for indicating whether buffered downlink data exists for an STA which is grouped to one or more sub-blocks, and a block control field indicating an encoding scheme of the bitmap field. | 03-05-2015 |
20150063233 | METHOD FOR SETTING SERVICE PERIOD IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - Disclosed is a method for setting a service period (SP) of a station (STA) in a wireless communication system and an apparatus for supporting the method. More particularly, the method comprises a step of transmitting a trigger frame to an access point (AP) and starting the service period. The trigger frame may be a data frame that includes data to be transmitted to the AP or a null frame for triggering the data transmission of the AP. | 03-05-2015 |
20150078229 | METHOD AND APPARATUS FOR TRANSCEIVING BEACON IN WIRELESS LAN SYSTEM - The present invention relates to a wireless communication system, and more specifically discloses a method and an apparatus for transceiving a beacon in a wireless LAN system. A method for receiving a beacon from a station (STA) in a wireless communication system according to one embodiment of the present invention comprises the steps of: receiving a probe response frame from an access point (AP); determining the time at which the next beacon is to be received by means of information regarding the next beacon contained in the probe response frame; and receiving the next beacon at the time determined for receiving the next beacon. | 03-19-2015 |
20150078230 | METHOD AND APPARATUS FOR ACCESSING CHANNEL IN WLAN SYSTEM - The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for accessing a channel in a WLAN system. A method for accessing the channel from a station (STA) in the wireless communication system, according to one embodiment of the present invention, comprises receiving from an access point (AP) setting information of a time window, which does not allow channel access of the STA in a traffic indication map (TIM) mode and which is repeatedly set in a cyclic manner; and carrying out the channel access on the basis of the time window, wherein the setting information includes starting point information of a specific time window and cycle information of the time window, wherein the time window is repeatedly set for every cycle that is indicated by the cycle information of the time window. | 03-19-2015 |
20150085775 | METHOD AND APPARATUS FOR CONTROLLING CHANNEL ACCESS IN WIRELESS LAN SYSTEM - The present invention relates to a wireless communication system, and a method and apparatus for controlling channel access in a wireless LAN system. The method for controlling the channel access of a station (STA) of a wireless communication system according to the present invention comprises detecting a short frame transmitted by another STA; and deferring the channel access of the STA by a predetermined length of time. The short frame is a frame that triggers a service period during which the transceiving of a plurality of data frames of the other STA is allowed. The predetermined length of time can be set to the value corresponding to the length of time ranging from the start of the service period to the point in time at which the transceiving of a first data frame from among the plurality of data frames of the other STA is completed. | 03-26-2015 |
20150085780 | METHOD FOR INDICATING CHANNEL ACCESS TYPE IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - The invention relates to a method for a station (STA) to perform channel access in a wireless communication system, comprising the steps of: receiving a beacon frame including a traffic indication map (TIM); a step of checking, if the TIM indicates to the STA that buffered traffic exists, information relating to a PS-poll transmission type; and a step of transmitting a PS-poll frame according to either a first type or second type of transmission indicated by the information relating to the PS-poll frame transmission type. The first type of transmission involves transmitting the PS-poll frame after performing contention, and the second type of transmission involves transmitting the PS-poll frame in the time interval set for the STA. | 03-26-2015 |
20150085849 | METHOD AND APPARATUS FOR UPDATING SYSTEM INFORMATION IN WIRELESS LAN SYSTEM - The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for updating system information in a wireless LAN system. A method for a station (STA) to update system information in a wireless communication system according to one embodiment of the present invention comprises the steps of: if the value of a change sequence field received by the STA from an access point (AP) is different from the value of the change sequence field stored in the STA, transmitting, to the AP, a probe request frame including the change sequence field set to the value of the change sequence field stored in the STA; and a step of receiving, from the AP, a probe response frame responding to the probe request frame including the change sequence field. | 03-26-2015 |
20150092763 | METHOD FOR TRANSMITTING AND RECEIVING TRAFFIC INDICATION MAP IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR - Disclosed are a method for transmitting and receiving a traffic indication map (TIM) in a wireless communication system and a device for supporting the same. More particularly, the method for transmitting a traffic indication map comprises the step of transmitting a TIM to a STA through a beacon frame, wherein the TIM includes: a block bitmap field for indicating a subblock including a STA in which buffered downlink data exists for respective N (N are two or more natural numbers) blocks; and a block control field for indicating an encoding method for the bitmap field. | 04-02-2015 |
20150098447 | METHOD AND DEVICE FOR SELECTIVE DECODING OF BEACON FRAME IN WIRELESS LAN SYSTEM - The present invention relates to a wireless communication system, and more particularly, to a method and device for performing or supporting selective decoding of a beacon frame in a wireless LAN system. A method of decoding a frame by a station STA in a wireless communication system according to an embodiment of the present invention may include: determining whether to decode each of a first data portion and a second data portion of the frame; and decoding one or more of the first data portion and the second data portion if it is determined that the decoding is performed. Hence, the frame may further include information that is used for the determination by the station STA on whether to decode each of the first data portion and the second data portion, and whether to decode may be determined on the basis of whether to change one or more of the first data portion and the second data portion. | 04-09-2015 |
20150103767 | METHOD FOR INDICATING CHANNEL ACCESS TYPE IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - Disclosed is a method for a station (STA) for accessing a channel in a wireless communication system. The method for a STA for accessing a channel in a wireless communication system comprises the steps of: receiving a beacon frame comprising a traffic indicator map (TIM); and transmitting a power save (PS)-Poll frame if buffered traffic is indicated by TIM to the STA, wherein the PS-Poll frame is transmitted during a PS-Poll dedicated restricted access window (RAW) by and/or during an additional RAW, the PS-Poll dedicated RAW being allocated to transmit the PS-Poll frame, and the additional RAW being additionally allocated subsequent to the PS-Poll-dedicated RAW. | 04-16-2015 |
20150124784 | CHANNEL ACCESS METHOD IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - One embodiment of the present invention is a method for performing channel access using a first station (STA) in a wireless communication system, comprising: a step of receiving a traffic indication map (TIM) bitmap; and a step of attempting channel access for a wireless medium in a first time period indicated by the first TIM bitmap. The first STA attempts channel access for the wireless medium in a third time period which is one of the second time periods indicated by the TIM bitmap in the event that the first STA senses an operation of a second STA relating to the wireless medium in the first time period. | 05-07-2015 |
20150156722 | METHOD AND DEVICE FOR ACCESSING CHANNEL IN WIRELESS LAN SYSTEM - According to one embodiment of the present invention, a method for performing a channel access by a station (STA) in a wireless communication system comprises the steps of: transmitting a first frame for a channel access request to an access point (AP); and receiving a second frame, which is a response to the channel access request, from the AP, wherein the first frame includes information indicating whether or not uplink data of the STA is present. | 06-04-2015 |
20150189577 | METHOD FOR SETTING UP HIGH-SPEED LINK IN WLAN SYSTEM AND DEVICE FOR SAME - The present invention relates to a wireless communication system, and more specifically, to a method for setting up a high-speed link in a WLAN system and a device for the same. A method for setting up a high-speed link by a station (STA) in a WLAN system, according to one embodiment of the present invention, can comprise the steps of: transmitting a frame including identification information and/or fragment identification information of a previous access point (AP) from the STA to a current AP; and receiving Generic Advertisement Service (GAS) query response information from the current AP, wherein when the identification information of the previous AP is included in the frame, the GAS query response information can be acquired by the current AP from the previous AP. | 07-02-2015 |
20150215867 | METHOD AND APPARATUS FOR UPDATING LISTEN INTERVAL IN WIRELESS LAN SYSTEM - Disclosed are a method and an apparatus for updating a listen interval in a wireless communication system. To this end, a method for updating a listen interval by a station (STA) of a wireless communication system may comprise, if an operation mode of the station is changed, a request frame including information indicating that the operation mode of the station is changed, to an access point (AP); and receiving a response frame in response to the request frame from the AP. If a value of a listen interval of the station is changed as the operation mode of the station is changed, the request frame further include a value of a new listen interval of the station. | 07-30-2015 |
20150223081 | METHOD FOR RECEIVING DOWNLINK SIGNAL BY STATION IN WIRELESS COMMUNICATION SYSTEM - The invention relates to a method for receiving a downlink signal from an access point (AP) by a station (STA) in a wireless communication system, comprising the steps of: transmitting an uplink frame; and receiving a response frame as a response to the uplink frame. A terminal performs a re-association with the AP when it is recognized, via the response frame, that the AP has been restarted. | 08-06-2015 |
20150230244 | METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING TRAFFIC INDICATION MAP IN WIRELESS LAN SYSTEM - The present invention relates to a wireless communication system and, more specifically, to a method and a device for transmitting and receiving a traffic indication map (TIM) in a wireless LAN system. The method by which a station (STA) receives a TIM element in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: receiving a frame that includes the TIM element from an access point (AP); and decoding a partial virtual bitmap included in the TIM element, wherein one block of the partial virtual bitmap includes one or more association identifier difference value (ΔAID) fields, and a field subsequent to the one or more ΔAID fields can indicate an end of the one block. | 08-13-2015 |
20150230245 | METHOD AND APPARATUS FOR GAINING ACCESS IN WIRELESS LAN SYSTEM - A method for gaining access according to one embodiment of the present invention in which a station (STA) gains access to a medium in wireless communication system comprises the steps of: sensing a carrier wave for a medium so as to transmit a set frame; and, if the medium is busy, executing a random back-off procedure, wherein the starting point of the random back-off procedure is indicated by a second parameter randomly selected from within a range in accordance with a first parameter. | 08-13-2015 |
20150237623 | METHOD AND DEVICE FOR PERFORMING CHANNEL ACCESS IN WLAN SYSTEM - One embodiment of the present invention relates to a method whereby a station (STA) which is irrelevant to a multi user (MU) group performs channel access in a wireless communication system, the method for performing channel access comprising the steps of: receiving a resource allocation frame; and checking a group indicator field comprised in the resource allocation frame, wherein the STA determines a slot start offset through the first bit of a slot allocation field for the MU group in case the group indicator field indicates the presence of the slot allocation field for the MU group in the resource allocation frame. | 08-20-2015 |
20150245282 | METHOD AND DEVICE FOR UPDATING SYSTEM INFORMATION IN WIRELESS LAN SYSTEM - The present invention relates to a method and a device for updating system information in a wireless LAN system. A method for updating system information in a station (STA) of a wireless communication system may comprise transmitting, by the STA which stores system information and a configuration change count value of a previously linked preferred access point (AP), a probe request frame for active scanning to the preferred AP; and receiving a probe response frame from the preferred AP. Preferably, the probe request frame includes a configuration change count field previously acquired from the preferred AP, and if a value of the configuration change count field included in the probe request frame is different from a present configuration change count value of the preferred AP, the probe response frame may include one or more elements of system information which should be updated by the STA. | 08-27-2015 |
20150249953 | METHOD AND DEVICE FOR FAST LINK SYNCHRONIZATION IN WLAN SYSTEM - The present invention relates to a wireless communication system, and more specifically, a method and a device for the scanning of a station (STA) in a WLAN system are disclosed. The whereby an STA performs scanning in a wireless communication system according to one embodiment of the present invention comprises the steps of: transmitting a first frame, including a BSSID-AP CCC pair, to one or more access points (AP); and receiving a second frame from an AP among the one or more ALs, wherein the system information of the AP, which is included in the second frame, includes dynamic information and can configure the second frame to be optimized according to the dynamic information. | 09-03-2015 |
20150271850 | METHOD AND APPARATUS FOR TRANSMITTING SIGNAL IN WIRELESS LAN SYSTEM - Disclosed is a method for transmitting a signal of an access point (AP), comprising the steps of receiving a first frame from a first STA; and transmitting a second frame including a response to the first frame to the first STA, wherein the second frame induces the transmission of a third frame for the first STA to make the second STA set a network allocation vector (NAV), and the second STA is an STA unable to sense the AP. | 09-24-2015 |
20150282157 | METHOD AND DEVICE FOR UPDATING SYSTEM INFORMATION IN WIRELESS LAN SYSTEM - The present invention relates to a wireless communication system and, more specifically, to a method and a device for updating system information in a wireless LAN system. The method for updating system information in a station (STA) of a wireless communication system, according to one embodiment of the present invention, comprising: allowing the STA to transmit, to an access point (AP), a probe request frame that includes a change sequence field which is set to a value of a change sequence field stored in the STA, if a value of a change sequence field received from the AP is different from the value of the change sequence field stored in the STA; and allowing the STA to receive, from the AP, a probe response frame which responds to the probe request frame that includes the change sequence field, wherein the probe request frame is a short probe request frame. | 10-01-2015 |
20150296544 | METHOD AND DEVICE FOR FAST LINK SYNCHRONIZATION IN WLAN SYSTEM - The present invention relates to a wireless communication system, and more specifically, a method and a device whereby a station (STA) performs link setup with an access point (AP) in a WLAN system are disclosed. The method according to one embodiment of the present invention comprises: a step in which an STA receives a first frame related to link setup from an AP in a wireless communication system; and a step in which a second frame related to association is transmitted to the AP, wherein the first frame is a fast initial link setup (FILS) discovery frame and the second frame may comprise timestamp request information in case an AP configuration change count (CCC) value the STA has and an AP CCC value included in the received first frame are determined to be the same. | 10-15-2015 |
20150334592 | METHOD AND APPARATUS FOR ACCESSING CHANNEL IN WLAN SYSTEM - The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for accessing a channel in a WLAN system. A method for accessing the channel from a station (STA) in the wireless communication system, according to one embodiment of the present invention, comprises a step of transmitting a power save-poll (PS-poll) for channel accessing from a listening interval to an access point, wherein the station operates in a non-traffic indication map (TIM) mode which is not limited by a TIM element that is transmitted from the access point, and wherein the time of transmission of the PS-poll is not limited by the TIM element. | 11-19-2015 |
20150334742 | METHOD AND DEVICE FOR RESTRICTED ACCESS WINDOW-BASED CHANNEL ACCESS IN WLAN SYSTEM - The present invention relates to a wireless communication system. More particularly, a method and a device for restricted access window-based channel access in a WLAN system are disclosed. The method whereby a station (STA) performs channel access in a wireless communication system according to one embodiment of the present invention may comprise the steps of: receiving restricted access window (RAW) cross-border transmission allowance (CBTA) information from an access point (AP) in case an RAW is allocated to the STA; and performing transmission by the STA on the basis of the RAW CBTA information. In case the RAW CBTA information is configured as a first value, transmission by the STA beyond the border of the RAW may be allowed. | 11-19-2015 |