Patent application number | Description | Published |
20090017752 | POWER BALANCING IN A COOPERATIVE COMMUNICATION NETWORK - A method of adjusting transmission power for data communicated in a mobile communication system, wherein data is transmitted from a source station to a destination station over a first route and a second route. The method comprises receiving a first transmission power control signal; wherein a destination station generates a second transmission power control signal, in response to receiving a quality measurement signal from the relay station for data communicated to the destination station over a combination of the first route and the second route; and adjusting data transmission power according to the first transmission power control signal. | 01-15-2009 |
20090017753 | DATA COMMUNICATION IN A COOPERATIVE COMMUNICATION NETWORK - A method for communicating data from a source to a destination using a plurality of relay stations in a wireless communication system is provided. The method comprises grouping the plurality of relay stations into at least one relay station group; receiving in a relay station group a subset of data transmitted from the source; sharing information between relay stations in the relay station group for forwarding to the destination the received subset of data transmitted from the source; determining a forwarding scheme for transmitting the received subset of data; and transmitting the received subset of data to the destination using the forwarding scheme. | 01-15-2009 |
20090073914 | MESSAGE CODING IN A RELAYED COMMUNICATIONS NETWORK - A method for relaying a signal in a wireless communication system is provided. The method comprises receiving in at least one of a base station and a relay station information regarding a mobile station group (MSG) of a mobile station, scheduling within a given duration uplink information to be transmitted from a first mobile station and downlink information to be transmitted to at least one mobile station, wherein the first mobile station is in each of the at least one mobile station's MSG, receiving in a relay station the uplink information and the downlink information to be transmitted within the given duration, network coding the uplink information and the downlink information in the relay station, and transmitting from the relay station a network-coded packet, wherein the network-coded packet can be received by the base station and the at least one mobile station. | 03-19-2009 |
20100062793 | MOBILE STATION ASSISTED LOCATION BASED SERVICE - A method for determining a location of a mobile station is provided. The mobile station is requested to identify pilot signals monitored by the mobile station. A pilot signal report is received from the mobile station identifying the pilot signals monitored. It is determined that a location of the mobile station cannot be determined according to the identified pilot signals. A resource allocation signal is transmitted to the mobile station. A report is received from at least one assisting station. The report includes information for determining the location of the mobile station. The location of the mobile station is determined according to the information received in the report from the at least one assisting station and the signal received at the base station from the mobile station. | 03-11-2010 |
20100112938 | RELAY FRAME STRUCTURE FOR SUPPORTING TRANSPARENT AND BIDIRECTIONAL RELAYS - A method for transmitting data includes receiving at a first relay station first data from a parent station during a downlink period comprising a plurality of downlink zones. A network coding zone is one of the plurality of downlink zones and is located at an end of the downlink period, and the first data is received in at least one of the plurality of downlink zones other than the network coding zone. The method further includes receiving at the first relay station from a child station, second data during an uplink zone, and transmitting third data by the first relay station to the child station, during the network coding zone using a resource. The method further includes transmitting the third data to the parent station, during the network coding zone, using the resource. The third data results from the first data being effectively logically XOR-ed to the second data. | 05-06-2010 |
20100265915 | METHOD TO FACILITATE USER EQUIPMENT HANDOFF WITHIN A PACKET DATA COMMUNICATION SYSTEM - A method to facilitate user equipment (UE) handoff within a packet data communication system includes receiving at the Evolved NodeB (eNB) via a serving relay node an indication that the UE will undergo a handoff from the serving relay node to a target node; receiving at the eNB first packet data having a first payload and a first Internet protocol (IP) header identifying an address of the eNB; extracting, at the eNB, the first payload from the first packet data to form a first packet data unit (PDU) including the extracted first payload and a second IP header identifying the address of the eNB and an address of the target node; and transmitting, from the eNB to the target node, the first PDU to permit the target node to transmit the first payload of the first PDU to the UE, the target node being identified using the second IP header. | 10-21-2010 |
20110002304 | ENHANCED DELAY MANAGEMENT - A method to facilitate user equipment (UE) handoff within a packet data communication system includes determining, at a source relay node, that the UE is to undergo a handoff from the source relay node to a target entity and sending, by the source relay node, a first request to a network node serving the UE. The sending is performed responsive to the determination that the UE is to undergo the handoff, such that the first request is configured to cause the network gateway node to store packet data addressed to the UE. Further operations include sending, by the target entity, a second request to the network, such that the second request is configured to cause the network to forward the stored packet data to the target entity, and receiving, at the target entity from the network, the stored packet data for wirelessly transmitting to the UE. | 01-06-2011 |
20110230179 | WIRELESS/WIRED BACKHAUL-AWARE CELL SELECTION MECHANISM - A method for selecting a cell in a wireless communication system includes performing a cell selection process in a mobile terminal, which includes receiving, in the mobile terminal, information from each of at least one cell, each information including a preference value, where each preference value indicates a congestion level of a corresponding one of the at least one cell, and selecting, in the mobile terminal, one of the at least one cell according to the received preference value. The method for selecting a cell a wireless communication system further includes attempting, by the mobile terminal, to connect with the selected cell by performing a random access procedure with the selected cell. | 09-22-2011 |
20120129522 | METHOD OF COMMUNICATING DATA BASED ON AN UNLICENSED BAND IN A WIRELESS COMMUNICATION SYSTEM - A method for communicating data based on an unlicensed band in a wireless communication system comprising a first type network entity and a second type network entity which is different. The first type network entity comprises a cellular base station and the second type network entity comprises a Femto-cell base station. In the method, a cellular base station identifies at least one Femto-cell base station incurring interference and instructs the identified base station to operate on an unlicensed band. The technical features can be used to improve the performance of the wireless network, and/or to reduce the effect of interference. | 05-24-2012 |
20120250501 | METHOD AND APPARATUS FOR PROCESSING SIGNAL ASSOCIATED WITH WARNING NOTIFICATION IN WIRELESS COMMUNICATION SYSTEM - Based on a proposed method, the UE can initiate a certain timer in order not to allow non-emergency calls when warning notification is given in a certain area. In particular, the UE can receive a paging message including warning indication from a network, and starting a delay timer upon receiving the paging message if the UE belongs to a delay-tolerant category. The UE performs a random access procedure after the delay timer is expired. Namely, the UE that receives the paging message for warning, such as the ETWS and CMAS, immediately check whether it belongs to a certain category proposed by this document to trigger a delay timer to wait for a certain period of time until it attempt the call initiation procedure. | 10-04-2012 |
20120269122 | METHOD AND APPARATUS FOR PERFORMING RADIO ACCESS WITH DELAY IN A WIRELESS COMMUNICATION SYSTEM - In one design, a method to change a network-assigning mechanism and to use a distributed UE-selecting mechanism with the minimum possible information transferred from the network to the UE is proposed. In particular, it provides mechanism to define a lower bound and an upper bound for the extended wait time. For instance, the method comprises transmitting a RRC connection request message to a network, wherein an establishment cause of the RRC connection request message is set to be delay tolerant or low priority; receiving information associated with a first wait time included in an RRC connection reject/release message from the network; and performing a radio access to the network with a delay which is determined based on a lower bound of the first wait time and a upper bound of the first wait time. | 10-25-2012 |
20120275378 | METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS BASED ON DELAY DETERMINED BY NETWORK - A method for performing random access is provided. The method is performed for random access procedure based on a lower bound of back-off time and an upper bound of back-off time. Based on the proposed method, subsequent transmission of a random access preamble is determined by control information included in a random access response. The control information explicitly or implicitly indicates an upper bound and a lower bound of a back-off time value. An exact back-off time is selected from a uniform distribution between the lower bound and the upper bound. | 11-01-2012 |
20120287851 | METHOD AND APPARATUS FOR PROCESSING DATA BETWEEN DIFFERENT LAYERS OF MOBILE STATION IN A WIRELESS COMMUNICATION SYSTEM - A method and user equipment (UE) for communicating data between a serving layer and a served layer are provided. In one design, a serving layer adjusts the value for the served layer before it forwards the value to the served layer. In another design, The serving layer forwards the value to the served layer without adjusting but the served layer adjusts the received value. A predefined mapping rule can be further applied when adjusting the value between two layers. | 11-15-2012 |
20120307693 | RELAY FRAME STRUCTURE FOR SUPPORTING TRANSPARENT AND BIDIRECTIONAL RELAYS - A method for transmitting data includes receiving at a first relay station first data from a parent station during a downlink period comprising a plurality of downlink zones. A network coding zone is one of the plurality of downlink zones and is located at an end of the downlink period, and the first data is received in at least one of the plurality of downlink zones other than the network coding zone. The method further includes receiving at the first relay station from a child station, second data during an uplink zone, and transmitting third data by the first relay station to the child station, during the network coding zone using a resource. The method further includes transmitting the third data to the parent station, during the network coding zone, using the resource. The third data results from the first data being effectively logically XOR-ed to the second data. | 12-06-2012 |
20120307694 | RELAY FRAME STRUCTURE FOR SUPPORTING TRANSPARENT AND BIDIRECTIONAL RELAYS - A method for transmitting data includes receiving at a first relay station first data from a parent station during a downlink period comprising a plurality of downlink zones. A network coding zone is one of the plurality of downlink zones and is located at an end of the downlink period, and the first data is received in at least one of the plurality of downlink zones other than the network coding zone. The method further includes receiving at the first relay station from a child station, second data during an uplink zone, and transmitting third data by the first relay station to the child station, during the network coding zone using a resource. The method further includes transmitting the third data to the parent station, during the network coding zone, using the resource. The third data results from the first data being effectively logically XOR-ed to the second data. | 12-06-2012 |
20130021997 | METHOD AND APPARATUS FOR MANAGING RANDOM ACCESS PREAMBLE SET IN A WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE RANDOM-ACCESS PRIORITY CLASSES - A method for determining a proper preamble allocation mode is provided. The method is applicable to a base station communication with a number of human to human UEs and machine to machine UEs. The base station collects information from different types of UEs to figure out arrival rates for human to human type random access attempts and machine to machine type random access attempts. The base station selects one allocation mode out of two different allocation modes. In one mode, random access preambles are dedicatedly allocated to machine to machine type UES. In the other mode, preambles are commonly allocated to different types of UEs. The base station indicates the selected allocation mode by using system information block such as SIB2. | 01-24-2013 |
20130039274 | METHOD AND APPARATUS FOR REPORTING STATISTIC INFORMATION ASSOCIATED WITH RANDOM ACCESS IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for reporting statistic information associated with random access procedure and back-off process are provided. The method proposes a number of back-off interval reporting modes. The reporting modes include the first mode in which a sequence indicating every back-off interval applied during the back-off process is reported, the second mode in which a total sum of the every back-off interval applied during the back-off process is reported, the third mode in which an average of the every back-off interval applied during the back-off process is reported, and the fourth mode in which a variance of the every back-off interval applied during the back-off process is reported. The reporting information is transmitted via RRC signaling. | 02-14-2013 |
20130039308 | METHOD AND APPARATUS FOR REPORTING TIME INFORMATION ASSOCIATED WITH RANDOM ACCESS IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for reporting time information associated with random access procedure and back-off process are provided. The method applicable to a user equipment proposes to record time stamp information related to random access procedure. For instance, the UE records time information indicating when an initial random access preamble is transmitted and additional time information indicating when the UE succeeds in contention resolution. By reporting the time information, the UE allows a network to calculate work-period during which the UE performs a successful random access procedure. | 02-14-2013 |
20130051338 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK DATA ASSOCIATED WITH MTC DEVICE TRIGGER FUNCTION - A method and apparatus for small packet transmission in response to machine type communication (MTC) device trigger indication are provided. For uplink (UL) transmission of small packet from MTC device in idle state, a tracking area update (TAU) complete non-access stratum (NAS) message is used to protect integrity and confidentiality of UL small packet transmission without attach/service request procedure during idle state. For downlink (DL) transmission of small packet from MTC device in idle state, a TAU accept NAS message is used to protect integrity & confidentiality of DL small packet reception without attach/service request procedure during idle state. | 02-28-2013 |
20130107778 | METHOD AND APPARATUS FOR UPDATING EXTENDED ACCESS BARRING INFORMATION | 05-02-2013 |
20130128733 | METHOD AND APPARATUS FOR HANDLING SIGNALS USED FOR DELAY TOLERANT ACCESS IN A WIRELESS COMMUNICATION SYSTEM - The present description proposes a user equipment for processing data related to contention-based random access in a wireless communication system. The present description proposes to separately handle random access related parameters according to access type of a user equipment. Examples of the access type include normal access and delay tolerant access. In detail, a system information block indicating a first maximum number of preamble transmission applicable to a first type UE performing normal access and a second maximum number of preamble transmission applicable to a second type UE performing delay tolerant access is proposed. Further, back-off interval information used to indicate first type back-off interval information applicable to the first type UE and second type back-off interval information applicable to the second type UE is proposed. | 05-23-2013 |
20140133332 | METHOD AND APPARATUS OF SUPPORTING UE RELAY FUNCTIONS - The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method of performing ProSe by a Public Safety ProSe-enabled UE in a cellular communication system wherein the Public Safety ProSe-enabled UE is a member of a ProSe Group, and at least one UE of the ProSe Group is not served by a cellular network, and an apparatus therefore, in which the method comprising: checking whether the Public Safety ProSe-enabled UE is in a location served by the cellular network; and transmitting first information related to the ProSe Group from the ProSe Group to the cellular network if a condition is satisfied. | 05-15-2014 |
20140198708 | METHOD AND APPARATUS FOR GROUP COMMUNICATION IN PROXIMITY-BASED SERVICE - The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method of supporting a group communication and an apparatus therefore, in which the method comprises: establishing a communication connection with a second UE via a first relay UE; and receiving, from the first relay UE, a message requesting a relay connection, the message including first information indicating a current hop count, wherein if a condition is satisfied, the relay connection is provided between the first relay UE and a fourth UE via a second relay UE, the second relay UE being the first UE, wherein if the condition is not satisfied, the request of the relay connection is rejected, wherein the condition includes: the current hop count is less than a maximum number of allowed hops. | 07-17-2014 |
20140295832 | METHOD AND APPARATUS OF PERFORMING A DISCOVERY PROCEDURE - The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method of performing a discovery procedure for a ProSe and an apparatus therefore, in which the method comprises: receiving first resource allocation information for plural ProSe channels from a base station via a broadcast signal; sensing the plural ProSe channels; transmitting a sensing result for the plural ProSe channels to the base station; receiving second resource allocation information indicating one of the plural ProSe channels from the base station via a unicast signal; and transmitting a discovery signal via the ProSe channel indicated by the second resource allocation information. | 10-02-2014 |
20140295868 | METHOD AND APPARATUS FOR PROXIMITY-BASED SERVICE - The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method of managing a communication connection and an apparatus therefore, in which the method comprises: transmitting a first message for requesting a RRC connection, wherein the first message includes information indicating a cause of the request; establishing the communication connection via a network path; and receiving a second message from a ProSe server if the cause of the request is related with a ProSe, wherein the second message indicates whether the communication connection is out of proximity range or not, wherein, if the second message indicates that the communication connection is out of the proximity range, a third message for requesting one of a proximity range extension and a communication connection release is transmitted to the ProSe server. | 10-02-2014 |
20140301307 | METHOD AND APPARATUS FOR PROXIMITY-BASED SERVICE BETWEEN MORE THAN TWO OPERATORS - The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method of setting up a ProSe connection by a ProSe-enabled UE of a first MNO in a cellular communication system and an apparatus therefore, in which the method comprises: broadcasting a first message including first resource allocation information for a first radio resource of the first MNO, wherein the first message is broadcast using a specific radio resource that is available to ProSe-enabled UEs of a second MNO; and receiving acknowledgement information regarding the first message from one or more ProSe-enabled UEs of the second MNO by using the first radio resource of the first MNO. | 10-09-2014 |
20140301344 | METHOD AND APPARATUS FOR CONTROLLING NETWORK ACCESS IN A WIRELESS COMMUNICATION SYSTEM - The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method of performing random access procedure for network access and an apparatus therefore, in which the method comprises: receiving a first downlink signal including first information at time t | 10-09-2014 |
20150049684 | METHOD AND APPARATUS FOR PROXIMITY-BASED SERVICE - The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method of performing a ProSe communication by a UE in a cellular communication system and an apparatus therefore, in which the method comprises: receiving, from a BS, a first PDCCH signal including scheduling information and a CRC, wherein the CRC is masked with a ProSe-related ID; receiving, from the BS, a PDSCH signal using the scheduling information, wherein the PDSCH signal includes WLAN resources and information available for the ProSe communication; establishing a ProSe connection with a peer UE by using the WLAN resources and information; and exchanging WLAN radio signals with the peer UE in accordance with the ProSe connection, wherein the UE is configured to keep monitoring a second PDCCH signal during the WLAN radio signals are exchanged. | 02-19-2015 |
20150065077 | MOBILE TERMINAL AND METHOD FOR SUPPORTING EMERGENCY CALL - The present invention is directed to a method and an apparatus for use in a wireless communication system, in which the method comprises: receiving a broadcast signal including a first country code; obtaining first key input related with requesting an emergency call in a home country, wherein the home country corresponds to a second country code that is registered for the UE; and making the emergency call using a phone number based on the first key input, wherein if the first country code is identical with the second country code, an emergency phone number used in the home country is mapped to the phone number or the first key input is used as the phone number, wherein if the first country code is different from the second country code, an emergency phone number used in a current country corresponding to the first country code is mapped to the phone number. | 03-05-2015 |