Patent application number | Description | Published |
20120020278 | Radio Bearer Identification for Self Backhauling and Relaying in LTE Advanced - The present invention relates to a method and apparatus for user terminal and bearer identification that reduces the overhead for LTE relaying (layer 2 and layer 3), which will save radio resources on the backhaul link. Reduction in overhead is achieved by providing a more efficient mechanism for user terminal and bearer identification as compared to using GTP-u and associated UDP/IP headers. | 01-26-2012 |
20120176984 | Methods and Arrangements for Scheduling Radio Resources in a Wireless Communication System - Methods and arrangements in a base station are provided for scheduling radio resources to a user equipment. A time offset value is received that is associated with the moment of time when a frame of data was generated in the user equipment buffer. The moment of time when the frame of data was generated in the user equipment buffer is determined, based on the received time offset value. Thus, the buffer state of the user equipment buffer is predicted by using the determined moment of time when the frame of data was generated in the user equipment buffer. Radio resources are granted to the user equipment, based on the predicted buffer state of the user equipment buffer. Methods and arrangements in a user equipment for assisting the base station in scheduling radio resources are also provided herein. | 07-12-2012 |
20120201219 | Method and Arrangement in a Wireless Communication System - The present invention relates to a method and arrangement in base station for scheduling user equipments. The base station is adapted to schedule communication from user equipments by sending contention based grants comprising information indicating if the contention based grant should be used for initial transmission or for retransmission. If it is detected that data is not correctly received due to a collision, the information in a following contention based grant is set to indicate that said contention based grant is to be used for initial transmission, while if data is not correctly received, but no collision is detected, the information is set to indicate that the contention based grant is to be used for retransmission. Corresponding method and arrangement in a user equipment is described. | 08-09-2012 |
20120218903 | Component Carrier Selection Method and Apparatus for Random Access Attempts in a Communications Network - A method is provided for determining a location of a mobile device ( | 08-30-2012 |
20120307668 | Methods and Devices Which Enable Considering a Number of Active User Stations Linked Via Relays When Allocating Radio Resources - In a radio communication system, a relay node that relays data received from an anchor node to user stations, determines and transmits information about a number of active user stations linked to the relay node, to the anchor node. The anchor node allocates radio resources according to the received information about the number of active user stations. | 12-06-2012 |
20130010587 | Methods and Arrangements in a Telecommunication System - The present invention relates to a method and arrangement for controlling re-transmission in a user equipment supporting uplink spatial multiplexing. The method comprises the steps of
| 01-10-2013 |
20130034085 | Medium Access Control Timing Advance Group Assignment - In a method for assigning serving cells of a mobile terminal to timing advance groups, a network node transmits a Medium Access Control (MAC) control element to a mobile terminal in a wireless communication network. The MAC control element includes a set of first indicators, with each first indicator specifying whether a corresponding serving cell of the mobile terminal is to be included in a timing advance group. The MAC control element also includes at least one second indicator, with each second indicator specifying a timing advance group, and also specifying, via a defined mapping, the serving cell of the mobile terminal to which the timing advance group corresponds. | 02-07-2013 |
20130035101 | Handover in Case of a Radio Link Failure - The present invention relates to methods and arrangements in a UE and a RBSin a wireless communications system, enabling an efficient handover of the user equipment. The method comprises transmitting ( | 02-07-2013 |
20130064162 | Capability Extensions for Multimedia Broadcast Multicast Services - A base station of a mobile communication network supports continuity of a Multimedia Broadcast Multicast Service, MBMS, for a terminal. The base station receives, from the terminal, an information element informing the base station of a combination of bands, which the terminal supports for carrier aggregation. The terminal supports MBMS reception on any carrier configurable as a serving cell for the terminal according to the information element. The base station derives, from the received information element, MBMS reception capabilities of the terminal. The base station determines a number of carriers, which are configurable by the base station as serving cell of the terminal, such that the terminal is enabled to receive at least one MBMS. | 03-14-2013 |
20130229962 | METHOD AND ARRANGEMENT IN A COMMUNICATION SYSTEM - The present invention relates to a method and an arrangement of efficiently utilizing radio resources in a communication network, comprising a communication network node transmitting information on shared control channels (SCCH) to one or more user equipments. The information is transmitted over either a narrow or a wide bandwidth depending on which mode said one or more user equipments are, either a power saving mode or an active mode. | 09-05-2013 |
20130266001 | PROTOCOL SYNCHRONIZATION FOR HARQ BACKGROUND - A method and apparatus according to the present invention addresses and/or prevents lost protocol synchronization in HARQ systems caused by ACK/NACK errors. One embodiment detects lost synchronization errors for NDI-based retransmission protocols and restores synchronization by sending an explicit RESET message. In response to the RESET message, the transmitter aborts the transmission of a current PDU and transmits a new PDU and corresponding NDI. Another embodiment prevents protocol synchronization errors by sending scheduling grants on a packet by packet basis. The receiver sends a subsequent explicit scheduling grant to the transmitter based on an error evaluation of a received PDU. The transmitter will not send the next PDU unless it receives the subsequent explicit scheduling grant. | 10-10-2013 |
20130315179 | METHOD AND ARRANGEMENT IN A TELECOMMUNICATION SYSTEM - The present invention relates to a method in a cellular communication system, for avoiding errors in a HARQ process, wherein an NDI flag is used both for indicating either semi-persistent scheduling, SPS activation or SPS retransmissions, and also for indicating, by toggling of the flag, a new transmission in dynamic scheduling mode. The method comprises the steps of receiving, in a scheduling message, an indication that dynamically scheduled transmission will take place; if a semi persistent resource has occurred for the same HARQ process since a previously received indication for dynamically scheduled transmission, then considering the NDI flag to be toggled regardless of the value of the NDI flag. Thus, if the condition is fulfilled, a UE will always regard the NDI flag as indicating or requesting a new data transmission. | 11-28-2013 |
20140029557 | HARQ Process Continuation after CQI-Only Report - Techniques for controlling synchronous HARQ retransmissions are disclosed, in which non-adaptive retransmissions scheduled for a first transmission time interval are automatically deferred to a later transmission time interval in the event that a control message prohibiting the retransmission during the first transmission interval is received. In an exemplary method, a NACK message is received in response to a previous data transmission corresponding to a stop-and-wait HARQ process, and a synchronous HARQ retransmission is scheduled for a first transmission interval in response. A control message indicating that data for the stop-and-wait HARQ process may not be sent during the first transmission interval is received, and the synchronous HARQ retransmission is automatically deferred to a second transmission interval, responsive to the control message. An explicit grant is not required to trigger the retransmission during the second transmission interval. | 01-30-2014 |
20140044079 | METHODS AND ARRANGEMENTS FOR A MOBILE COMMUNICATIONS NETWORK - A procedure for synchronization of re-configuration of RRC procedures between the radio base station and the UE is achieved by associating a new configuration to be used by a UE with an additional UE identity. The UE is normally identified by a first UE identity, but is informed in a re-configuration message that the UE also has the additional UE identity. The UE is identified by the additional UE identity when the new configuration is to be activated. Hence, when the radio base station detects that the UE responds to requests, which included the additional UE identity, the radio base station can conclude that the UE has activated the new configuration. | 02-13-2014 |
20140064250 | Methods And Apparatuses For Resource management In A Multi-Carrier Telecommunications System - The embodiments of the present invention relate to apparatuses and methods for resource management in a multi-carrier system wherein a plurality of component carriers (CCs) is defined per cell. According to a method in an apparatus corresponding to a radio base station, a message is assembled comprising information on the structure of the cell served by the radio base station; the information including one or more CCs used in the cell that is/are available for a user equipment for performing initial access in the cell. The method also comprises, transmitting the assembled message to the user equipment and indicating to the user equipment to what resources to use for random access in the cell. The exemplary embodiments of the present invention also relates to a method in the user equipment, to a radio base station and to a user equipment. | 03-06-2014 |
20140079032 | Uplink Synchronization Method and User Equipment - A method, performed in a user equipment (UE) includes: saving a timing advance (TA) value when a TA timer associated with the TA value expires, the TA value indicating when the UE should start its uplink transmission before a nominal time given by the timing of a downlink signal received by the UE; and starting the TA timer in response to the UE receiving a TA command from an evolved Node B while the TA value is saved, the TA command containing an update for the TA value. A corresponding UE is presented. | 03-20-2014 |
20140094175 | METHOD AND APPARATUS FOR IN-DEVICE COEXISTENCE (IDC) INDICATION - This disclosure relates to methods and apparatuses for In-Device Coexistence (IDC) indication. Among other things, the present disclosure presents a method performed by a user equipment (UE). The UE is configured to send | 04-03-2014 |
20140169277 | Method and Arrangement in a Telecommunication System - Handling of UE capability information in a mobile telecommunications network wherein an eNodeB receives information regarding the UE capability information from the UE and stores the information. The eNodeB sends the UE capability information to the EPC, i.e., to an MME, which receives and stores the UE capability information. When the UE transits from idle to active state, does an initial attach, or when a part of the UE capabilities have changed, it sends a message to the eNodeB regarding the update. The eNodeB forwards the message to the MME, which sends a response associated with the previously stored UE capability information to the eNodeB. The eNodeB decides whether the UE capabilities stored in the MME is up-to-date based on the message from the UE and the response from the MME. If the UE holds updated UE capabilities the eNodeB can request updated UE capability information from the UE. | 06-19-2014 |
20140198729 | Controlling Random Access Failure on a Secondary Cell - A method in a base station for controlling a Random Access, RA, procedure is provided. The base station initiates ( | 07-17-2014 |
20140204901 | METHOD AND DEVICE FOR INDICATING VoLTE CAPABILITY | 07-24-2014 |
20140247776 | METHODS AND APPARATUSES FOR PERFORMING RANDOM ACCESS IN A TELECOMMUNICATIONS SYSTEM - A method of enabling a user equipment to perform a contention based random access, includes maintaining a set of non-dedicated random access preambles for contention-free random access and a set dedicated random access preambles for contention-based random access. The method also includes determining a random access preamble identifier and transmitting a message to the user equipment containing the determined random access preamble identifier. Additionally, the method includes receiving from the user equipment a non-dedicated random access preamble that is selected by the user equipment based on the random access preamble identifier comprised in the transmitted message. | 09-04-2014 |
20140269397 | Method for Improving Battery Life and HARQ Retransmissions in Wireless Communications Systems - Methods and apparatus for controlling discontinuous receiver operation in a wireless communication device are disclosed. In an exemplary embodiment, a wireless communication device configured to monitor a downlink signal during a series of regularly scheduled awake intervals and monitor the downlink signal for retransmissions during retransmission-monitoring intervals scheduled at a first predetermined delay from each detected data transmission to the receiver includes a control circuit configured to detect that a first retransmission-monitoring interval overlaps a previously scheduled radio activity during which the receiver is unavailable to monitor the first downlink signal, such as a measurement gap, and to adjust the first retransmission-monitoring interval, add an additional retransmission-monitoring interval, or both, responsive to said detecting. | 09-18-2014 |
20140307667 | METHOD AND APPARATUS FOR CONTENTION-BASED GRANTING IN A WIRELESS COMMUNICATION NETWORK - In one aspect of the disclosed teachings, associating a plurality of contention-based uplink grants with a range of uplink resource blocks allows one contention-based uplink grant message to signal the entire plurality of grants. As an example in the LTE context, the signaling load on the PDCCH is reduced by using a single contention-based uplink grant message to signal a plurality of contention-based uplink grants. The message indicates an allocated set of uplink resource blocks and the number of separate uplink resource grants represented by the set is known or signaled, such that user terminals recognize that separate subsets of uplink resource blocks within the set each correspond to a separate contention-based uplink grant. Information included in the contention-based uplink grant message, or otherwise signaled can be used to control the probability at which the user terminals attempt contention-based uplink transmissions and/or to control the MCS used for such transmissions. | 10-16-2014 |
20140307707 | NETWORK-INSTRUCTED HANDOVER FROM WLAN TO ANOTHER RADIO ACCESS NETWORK - Systems and methods are disclosed for providing a network-instructed handover of a wireless device from a Wireless Local Area Network (WLAN) to a Radio Access Network (RAN) of another Radio Access Technology (RAT), e.g., a 3 | 10-16-2014 |
20140351575 | Apparatuses and a Method for Protecting a Bootstrap Message in a Network - The embodiments of the present invention relate to apparatuses in the form of a first network unit and a device, and also relates to a method for enabling protection of a bootstrap message in a device management network system. The method comprises: receiving at the first network unit, a request to bootstrap the device; transmit a request for a bootstrap key, to a second network unit; receiving a message comprising the bootstrap key and further comprises trigger information and transmitting the trigger information to the device to trigger generation of the bootstrap key internally in the device. Thereafter a protected bootstrap message can be transmitted to the device from the first network unit, and when the device verifies and/or decrypts the bootstrap message, device management (DM) sessions can start between the device and the first network unit. | 11-27-2014 |
20140369314 | Method and Apparatus for Seamless Handover in a Wireless Communication Network - In a wireless communication network where base stations receive protocol data units (PDUs) from mobile stations for decompression and deciphering for ordered, sequential transfer as service data units (SDUs) to an associated core network, the teachings presented herein provide a method of supporting seamless handover of a mobile station from a source base station to a target base station. By way of example, the teachings herein apply to a network based on the E-UTRA specifications, as promulgated by the 3GPP. However, that example is non-limiting, as the teachings herein apply to any network that employs in-sequence data delivery and duplicate data detection at handover. Broadly, the source base station forwards out-of-sequence SDUs and corresponding sequence number information to the target base station in support of seamless handover, and the target base station uses that information to request retransmissions as needed for packet reordering. | 12-18-2014 |
20150063278 | Method and Apparatus in a Wireless Communications System - A method in a user equipment for requesting that a base station schedule the user equipment for an uplink data transmission to the base station is provided. The user equipment comprises a buffer. Directly or indirectly responsive to receiving data into the buffer to be transmitted to the base station, the user equipment generates a scheduling request trigger. The scheduling request trigger is configured to trigger the sending of a scheduling request to the base station if the trigger is pending at the next scheduling request opportunity, and to remain pending until it is cancelled. The user equipment cancels the pending scheduling request trigger when the data is accounted for in a buffer status report, which reports the size of the buffer to the base station, or when the data is included directly in a scheduled uplink data transmission whichever occurs first. | 03-05-2015 |
20150065092 | Methods and Apparatuses Generating a Radio Base Station Key in a Cellular Radio System - A Terminal Identity Token is created for identifying a User Equipment (UE) connected to a radio base station in a radio system. The UE communicates with the radio base station via a secure communication associated with an existing cryptographic key. The Terminal Identity Token is created based on a physical cell identity of a target cell known to both the UE and the radio base station, the terminal identity, and the existing key. By using the Terminal Identity Token, a secure communication can be established and enhanced without having to provide for additional security network components or additional signaling. | 03-05-2015 |
20150078306 | METHOD AND ARRANGEMENT IN A TELECOMMUNICATION SYSTEM - The present invention relates to a method in a cellular communication system, for avoiding errors in a HARQ process, wherein an NDI flag is used both for indicating either semi-persistent scheduling, SPS activation or SPS retransmissions, and also for indicating, by toggling of the flag, a new transmission in dynamic scheduling mode. The method comprises the steps of receiving, in a scheduling message, an indication that dynamically scheduled transmission will take place; if a semi persistent resource has occurred for the same HARQ process since a previously received indication for dynamically scheduled transmission, then considering the NDI flag to be toggled regardless of the value of the NDI flag. Thus, if the condition is fulfilled, a UE will always regard the NDI flag as indicating or requesting a new data transmission. | 03-19-2015 |