Patent application number | Description | Published |
20080287132 | Method, Computer Program And Base Station For Prediction Based Allocation Of Processing Resources In A Non-Serving Base Station - The present invention relates to a base station and a method in a mobile telecommunication network for allocating and de-allocating uplink base station processing resources to a mobile terminal. The base station are adapted to communicate to a mobile terminal on an uplink channel supporting macro-diversity, and the base station is adapted to be a non-serving base-station without control of the resource allocation to the mobile-terminal. The base station comprises means for predicting a likelihood of successful decoding of a future transmission, and means for allocating or de-allocating processing resources based on said prediction. | 11-20-2008 |
20080301515 | Method and a Transmitter/Receiver for Reduced Signaling in a Retransmission System Using Hybrid Automatic Repeat - The present invention relates to a transmitter and a receiver for a mobile communication system. The basic idea of the present invention is to target the number of HARQ transmissions that is required to be able to decode the transmitted data successfully and to only transmit HARQ feedback information if the decoding result differs from an expected result, wherein the expected result is based on the targeted number of required HARQ transmissions. | 12-04-2008 |
20090010278 | Method And Nodes For Providing Adaptive Segmentation - A method and nodes for providing adaptive segmentation in a higher protocol layer interacting with a lower protocol layer. An adaptable segmentation limit ( | 01-08-2009 |
20090143071 | Uplink Scheduling in a Mobile Telecommunication Network - The present invention relates to a node B comprising a downlink data scheduler and an uplink data scheduler, wherein the node B comprises means for transferring information associated with a downlink data transfer from said downlink data scheduler to said uplink data scheduler, and that the uplink data scheduler comprises means for scheduling an uplink data transfer as a result of the transmission of said downlink data transfer. | 06-04-2009 |
20090221242 | RLC Window Size Reconfiguration - A telecommunications device comprises a transceiver ( | 09-03-2009 |
20090258651 | Method For Reducing Uplink Traffic Load On Transport Network At Basestation During Soft Handover - The present invention relates to a node and a method thereof for a mobile telecommunication network connectable to a controlling node and wirelessly connectable to mobile terminals. The node is adapted to have an uplink connection to a mobile terminal, wherein the mobile terminal is adapted to have a second uplink connection to at least a second node such that data transmitted from the mobile terminal may be received at the node and at the at least the second node. The node comprises means for estimating whether data transmitted from the mobile terminal received at the at least the second node is received stronger than the data received at said node and means for discarding data received from the mobile terminal if it is estimated that the data is received stronger at the at least the second node than the data received at said node. | 10-15-2009 |
20100014466 | Method and a Device for Improved Status Reports - The invention discloses a method ( | 01-21-2010 |
20100015982 | Method for Recovery from a Failed Handover Procedure in a Telecommunication System - The present invention relates to a method, a user equipment and a network node in a cellular radio network. According to the method of the present invention, the network units detects a failed transmission of a handover command to the UE, which is still having a uplink channel available, and further receives a RRC message from the UE indicating the loss of a serving cell and indicating the strongest cell. The network unit prepares and initiates a new serving cell re-establishment and sends to the UE a RRC reconfiguration message. The UE can then continue normal operation in the new cell. | 01-21-2010 |
20100046405 | METHOD AND ARRANGEMENT FOR ALIGNMENT OF PROTOCOL DATA UNITS IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and arrangement for communicating a Protocol Data Unit (PDU) between a transmitter unit and a receiver unit in a wireless communication network. Said PDU comprising protocol headers associated with at least a first and a second protocol layers involved in the communication and a payload to be communicated. The method comprises the step of interacting between the at least first and second protocol layers, such that the sum of the bits of the protocol headers is n-bit aligned such as octet aligned independently of non-alignment of at least one of the protocol headers comprised in the PDU. | 02-25-2010 |
20100046448 | Single Bit Segmentation Indicator - Data units according to the first transmission format are divided into data units according to the second transmission format. A single-bit segmentation indicator inserted into the header of a data unit according to the second transmission format indicates whether the data unit according to the first transmission format ends in a data unit according to the second transmission format. | 02-25-2010 |
20100067459 | HARQ in Spatial Multiplexing MIMO System - Methods and apparatus for signaling scheduling information in a spatial multiplexing wireless communications system ( | 03-18-2010 |
20100067489 | Selective Packet Forwarding for LTE Mobility - Methods and devices are disclosed for forwarding data packets during handover in a packet-switched wireless communications system, such as a 3GPP Long-Term Evolution/System Architecture Evolution system. In an exemplary method, a source base station node ( | 03-18-2010 |
20100074153 | Method and Apparatus in a Telecommunication System - Method and apparatus in a communication unit ( | 03-25-2010 |
20100074178 | Method for Indication of Consecutive Data Units in a RAN - An object of the present invention is to provide a mechanism for improving the performance of a radio access network. The object is achieved by a data packet ( | 03-25-2010 |
20100074192 | METHOD FOR MAPPING LOGICAL CHANNEL ON SHARED CHANNEL - According to the invention data in a number of logical downlink intended for one or more mobile terminals are received in a first mapping unit, where at least a first High Speed Radio Network Temporary identity is allocated to these logical downlink channels addressing a group of mobile terminals for allowing transmission of channel data for reception by mobile terminals. A mobile terminal then reads, from a Broadcast Control Channel, necessary information including a High Speed Radio Network Temporary identity allocated to at least one logical downlink channel, where at least said first identity exists among possible identities. It then listens to a high speed shared control channel for the read identity. In case it detects the identity, the terminal follows a scheduling command, receives data on a high-speed downlink shared channel and processes said data. | 03-25-2010 |
20100077272 | HARDQ SYNCHRONIZATION METHOD FOR LTE - 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. | 03-25-2010 |
20100080170 | Improved MAC-D Multiplexing in UTRAN HSDPA Wireless Networks - UTRAN MAC-d multiplexing of data from multiple logical channels to a single MAC-d flow is supported while reducing overhead and achieving octet alignment in MAC-d PDU length. In one embodiment, the C/T field of a multiplexed MAC-d PDU is eliminated, and the logical channels multiplexed into the MAC-d flow are mapped to a MAC-hs PQ in at least the NodeB (and preferably in the UE as well). In other embodiments, the C/T field is retained, and an octet-aligned length indicator is transmitted from the RNC to the UE. In one embodiment, the length indicator is octet-aligned by padding the MAC-d PDUs. In another embodiment, transmitters and receivers in the path from RNC to UE are configured with an offset to add to the length indicator to achieve octet alignment. The padding or offset is (8−n) bits, where n=the number of bits in C/T field. | 04-01-2010 |
20100081443 | 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. | 04-01-2010 |
20100085880 | METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION NETWORK - Method and arrangement in a first node for requesting a status report from a second node. The first node and the second node are both comprised within a wireless communication network. The status report comprises positive and/or negative acknowledgement of data sent from the first node, to be received by the second node. The first node comprises a first counter configured to count the number of transmitted Protocol Data Units, PDUS, and a second counter configured to count the number of transmitted data bytes. The method and arrangements comprises initialising the first and the second counter to zero, transmitting data to be received by the second node, comparing the value of the first and the second counters with a first threshold limit value and a second threshold limit value and requesting a status report from the second node if any of the threshold limit values is reached or exceeded. | 04-08-2010 |
20100085927 | (H)ARQ FOR SEMI-PERSISTENT SCHEDULING - A radio communications link is established between radio stations, and a semi-persistent radio resource is allocated to support data transmission over the communications link. The semi-persistent radio resource is associated with a corresponding automatic repeat request (ARQ) process identifier. Non-limiting examples of a semi-persistent radio resource include a regularly scheduled transmission time interval, frame, subframe, or time slot during which to transmit a data unit over the radio interface. Retransmission is requested of a data unit transmitted using the semi-persistent radio resource. The ARQ process identifier associated with the semi-persistent resource is used to match a retransmission of a data unit dynamically scheduled on the communications link with the requested data unit retransmission. In a preferred example embodiment, the ARQ process identifier is a hybrid ARQ (HARQ) process, where a retransmitted data unit is combined with a previously-received version of the data unit. | 04-08-2010 |
20100091693 | Method and a Device for Saving Power in a Wireless User Terminal | 04-15-2010 |
20100091721 | METHOD AND ARRANGEMENT FOR EFFICIENTLY UTILIZING RADIO RESOURCES IN A COMMUNICATION NETWORK - The present invention relates to a method and an arrangement for obtaining efficient radio resource utilization over a radio interface in a communication network comprising a transmitting entity ( | 04-15-2010 |
20100135173 | Method for Implicit Conveying of Uplink Feedback Information - Method and apparatus for conveying feedback reports from a data receiving party ( | 06-03-2010 |
20100135249 | 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. | 06-03-2010 |
20100172295 | Technique for Uplink Data Transmissions in Communication Networks - The invention relates to a technique for uplink data transmissions in, e.g., mobile networks. A method embodiment for performing the technique in a transmitter ( | 07-08-2010 |
20100189022 | Method and Device for Saving Power in a Wireless User Terminal | 07-29-2010 |
20100192035 | Method and Arrangement for Retransmission Using HARQ - The present invention relates to a method and device for enhancing coverage of a power-limited mobile terminal by sending information relating to a single Hybrid Automatic Repeat Request (HARQ) process from the mobile terminal to a base station using several transmission time intervals. | 07-29-2010 |
20100216471 | Link Layer Control Protocol Implementation - A radio base station suitable for performing a handover operation for a LTE-variant of a radio access network comprises a transceiver and a status report requester. The transceiver is configured to facilitate wireless transmission between the radio base station and a wireless terminal over an air interface, including transmission of a radio link bearer for the connection over a downlink from the radio base station to the wireless terminal. The status report requester is configured to determine, according to one or more pre-defined criteria, whether to request from the wireless terminal a status report for a radio bearer prior to the radio base station transferring user data for the connection to another radio base station in conjunction with a handover. | 08-26-2010 |
20100240410 | Reducing State Transition Time From Power Saving State - The present invention relates to a method and an arrangement for reducing a state transition time from a power saving state for a user equipment ( | 09-23-2010 |
20100278051 | Status Reporting for Retransmission Protocol - A method of transmitting a status report from a receiving terminal to a transmitting terminal is disclosed. A receiving terminal generates a status report according to a first retransmission protocol implemented by a higher layer protocol layer and sends the status report to a transmitting terminal in one or more data units of a lower layer protocol. If the lower layer data units are not successfully received, the lower layer protocol provides a failure indication, referred to as a local NACK, to the higher layer protocol. In response to the failure indication, the higher layer protocol generates an updated status report and sends the updated status report from the receiving terminal to the transmitting terminal. | 11-04-2010 |
20100322155 | Method and Arrangement in a Telecommunication System - A method is provides in a receiving node for handling status information of data units transmitted from a sending node to the receiving node over a radio link. The receiving node establishes ( | 12-23-2010 |
20110007698 | Methods and Arrangements for a Mobile Communications Network - The present invention relates to an improved procedure for synchronization of re-configuration of RRC procedures between the radio base station and the UE. This 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. | 01-13-2011 |
20110044168 | TRANSPORT NETWORK CONGESTION CONTROL FOR ENHANCED UPLINK COMMUNICATIONS - For a mobile radio connection having at least two uplink flows, a determination is made whether one of the uplink flows from a non-serving cell has a better radio link quality than another of the uplink flows from a serving cell. A congestion condition in the radio access transport network is monitored for those uplink flows. If congestion in the radio access transport network for the non-serving cell uplink flow is detected when that uplink flow is associated with the better radio link quality, then a message is generated for transmission to the mobile radio terminal to reduce a rate at which the mobile radio terminal transmits data for the connection to the radio access transport network rather than the non-serving cell discarding uplink data packets. | 02-24-2011 |
20110124360 | Methods and Arrangements in a Mobile Telecommunications Network - The present invention relates to method and arrangements for using an identifier of a predefined type, e.g. an RNTI identifying one configuration on an out-band control channel for activating the configuration identifiable by that identifier. The identifier is sent from the network to the UE, when a configuration corresponding to that identifier is to be activated. This implies that both the UE and the radio base station comprise a mapping between each configuration and the corresponding identity of each configuration. | 05-26-2011 |
20110164664 | RLC Segmentation for Carrier Aggregation - Systems, devices, methods and software according to these exemplary embodiments provide for reducing the number of different sequence numbers used to transmit radio link control, RLC, data blocks to avoid, for example, sequence number stalling. This can be accomplished by, for example, transmitting or receiving RLC protocol data unit, PDU, segments as the initial or original instance of data communication. | 07-07-2011 |
20110188422 | METHOD AND ARRANGEMENT IN A TELECOMMUNICATIONS SYSTEM - The present invention relates to a method and apparatus for requesting scheduling of resources to be used for uplink communication of data in a communications system. If the repeated transmission by a user equipment of scheduling requests on an uplink control channel is determined to be unsuccessful, a random access transmission on a random access channel is initiated as a fallback procedure. | 08-04-2011 |
20110205926 | METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION NETWORK - Method and arrangement in a first node for requesting a status report from a second node. The first node and the second node are both comprised within a wireless communication network. The status report comprises positive and/or negative acknowledgement of data sent from the first node, to be received by the second node. The first node comprises a first counter configured to count the number of transmitted Protocol Data Units, PDUs, and a second counter configured to count the number of transmitted data bytes. The method and arrangements comprises initialising the first and the second counter to zero, transmitting data to be received by the second node, comparing the value of the first and the second counters with a first threshold limit value and a second threshold limit value and requesting a status report from the second node if any of the threshold limit values is reached or exceeded. | 08-25-2011 |
20120026945 | Method and a Device for Improved Status Reports - A method for use in a cellular communications system in which system traffic can be exchanged between transceivers comprises receiving traffic from a second transceiver at a first transceiver. The traffic includes data units that are each associated with an identifier. The data units are also divided into segments. The method additionally includes sending status information from the first transceiver to the second transceiver. The status information pertains to one or more data units transmitted by the second transceiver. Additionally, sending the status information includes, for non-received and partially received data units, sending information indicating the data units were non-received or partially received and, for partially received data units, sending information indicating which parts of the data units were not received. | 02-02-2012 |
20120120855 | Method and Apparatus in a Telecommunication System - Method and apparatus in a communication unit employing a wireless TDD or half duplex FDD transmission arrangement when communicating with a data sending party, for scheduling feedback reports for data blocks in received receive (RX) sub-frames, in transmit (TX) sub-frames available for transmission. An obtaining unit in the communication unit receives allocation parameters for the connection where the number of required feedback reports is greater than the number of allowed feedback reports. A scheduling unit in the communication unit then schedules feedback reports in available TX sub-frames according to a predetermined spreading rule also known by the data sending party, dictating that the feedback reports are spread out or distributed evenly over the available TX sub-frames. In this way, the number of feedback reports in a TX sub-frame can be reduced. | 05-17-2012 |
20120129530 | Handover Method for Reducing the Amount of Data Forwarded to a Target Node - Method and arrangement in a source radio network node for reducing the amount of user equipment related data forwarded to a target radio network node, when performing a handover of a user equipment. The method comprises determining that the user equipment is to perform a handover from the source radio network node to the target radio network node, increasing the polling frequency of polls sent to the user equipment, transmitting a poll to the user equipment, receiving a status message from the user equipment, as a response to the transmitted poll, dropping the data which, according to the received status message have been acknowledged by the user equipment, and forwarding the data which have not been acknowledged by the user equipment according to the received status message, to the target radio network node. | 05-24-2012 |
20120182916 | Method and a Device for Saving Power in a Wireless User Terminal - A method for use in a cellular system with at least one controlling node, eNodeB, which controls user terminals, UEs, in a cell. According to the method, a UE can be in one of at least two different states, an idle state, a DRX state, and an “on duration” state. A UE can receive at least a first and a second type of traffic from its eNodeB. If the first type of traffic is received by a UE during an on duration period, the UE assumes the idle (DRX) state at the end of the on duration period, and if the second type of traffic is received by the UE during an on duration period, the UE prolongs the current on duration period by a certain amount of time. | 07-19-2012 |
20120188933 | Radio Resource Usage Optimisation In A Packet Network - A method of optimising the use of radio resources in a mobile radio communication system during a combinational multimedia session involving circuit switched and packet switched sessions between user terminals, the method comprising: disabling an in-sequence delivery option of packets between radio network control nodes of the radio access network(s) serving the user terminals for said packet switched session. | 07-26-2012 |
20120230256 | Adaptive (RLC) Segmentation - A method and nodes for providing adaptive segmentation in a higher protocol layer interacting with a lower protocol layer. An adaptable segmentation limit, defining a threshold of a largest Protocol Data Unit (PDU) that is to be submitted to a lower protocol layer, is deployed at a higher protocol layer interacting with the lower protocol layer. For each Service Data Unit (SDU) arriving at the higher protocol layer, it is determined if the respective SDU can fit into the segmentation limit or not. Each SDU that do not fit into the segmentation limit is segmented into PDUs which are smaller than or equal to the segmentation limit, while no segmentation is performed on SDUs that fit into the segmentation limit. | 09-13-2012 |
20120294216 | Method and a Device for Saving Power in a Wireless User Terminal - A method for use in a cellular system with a controlling node and user terminals, UEs. In the system, UEs can assume one of at least two states, a non-listening state, i.e. a state during which a UE does not listen for data from its controlling node, and a listening state, an “on duration” state. According to the method a UE in the system is able to alternate between said two states according to a certain scheme, the scheme according to which a UE in the system alternates between said two states being dependent on whether or not data units which are transmitted between the UE and its controlling node are received entirely and correctly within an initially allocated resource for each data unit. | 11-22-2012 |
20130010660 | Method for Implicit Conveying of Uplink Feedback Information - Method and apparatus for conveying feedback reports from a data receiving party ( | 01-10-2013 |
20130250877 | MAC-D Multiplexing in UTRAN HSDPA Wireless Networks - UTRAN MAC-d multiplexing of data from multiple logical channels to a single MAC-d flow is supported while reducing overhead and achieving octet alignment in MAC-d PDU length. In one embodiment, the C/T field of a multiplexed MAC-d PDU is eliminated, and the logical channels multiplexed into the MAC-d flow are mapped to a MAC-hs PQ in at least the NodeB (and preferably in the UE as well). In other embodiments, the C/T field is retained, and an octet-aligned length indicator is transmitted from the RNC to the UE. In one embodiment, the length indicator is octet-aligned by padding the MAC-d PDUs. In another embodiment, transmitters and receivers in the path from RNC to UE are configured with an offset to add to the length indicator to achieve octet alignment. The padding or offset is (8-n) bits, where n=the number of bits in C/T field. | 09-26-2013 |
20130258844 | METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION NETWORK - Method and arrangement in a first node for requesting a status report from a second node. The first node and the second node are both comprised within a wireless communication network. The status report comprises positive and/or negative acknowledgement of data sent from the first node, to be received by the second node. The first node comprises a first counter configured to count the number of transmitted Protocol Data Units, PDUs, and a second counter configured to count the number of transmitted data bytes. The method and arrangements comprises initialising the first and the second counter to zero, transmitting data to be received by the second node, comparing the value of the first and the second counters with a first threshold limit value and a second threshold limit value and requesting a status report from the second node if any of the threshold limit values is reached or exceeded. | 10-03-2013 |
20140023027 | (H)ARQ FOR SEMI-PERSISTENT SCHEDULING - A radio communications link is established between radio stations, and a semi-persistent radio resource is allocated to support data transmission over the communications link. The semi-persistent radio resource is associated with a corresponding automatic repeat request (ARQ) process identifier. Non-limiting examples of a semi-persistent radio resource include a regularly scheduled transmission time interval, frame, subframe, or time slot during which to transmit a data unit over the radio interface. Retransmission is requested of a data unit transmitted using the semi-persistent radio resource. The ARQ process identifier associated with the semi-persistent resource is used to match a retransmission of a data unit dynamically scheduled on the communications link with the requested data unit retransmission. In a preferred example embodiment, the ARQ process identifier is a hybrid ARQ (HARQ) process, where a retransmitted data unit is combined with a previously-received version of the data unit. | 01-23-2014 |
20140133341 | Method and Arrangement in a Telecommunication System for Handling Status Information of Data Units - A method is provides in a receiving node for handling status information of data units transmitted from a sending node to the receiving node over a radio link. The receiving node establishes ( | 05-15-2014 |
20140141790 | Direct Transition to CELL DCH - The present invention relates to methods and arrangements for reducing the time delay associated with the initialisation of a data transfer in a Universal Mobile Telecommunications Systems (UMTS) terrestrial radio access network (UTRAN). A Radio Network Controller (RNC) initiates a data transfer by transmitting a downlink paging message to a User Equipment (UE), wherein the UE is capable of being in the states URA PCH, CELL PCH or CELL DCH. The paging message comprises information for transferring the UE from the URA PCH or the CELL PCH state directly to the CELL DCH state by means of delay reducing information indicated in the paging message. | 05-22-2014 |
20140153521 | Methods and Arrangements in a Mobile Telecommunications Network - The present invention relates to method and arrangements for using an identifier of a predefined type, e.g. an RNTI identifying one configuration on an out-band control channel for activating the configuration identifiable by that identifier. The identifier is sent from the network to the UE, when a configuration corresponding to that identifier is to be activated. This implies that both the UE and the radio base station comprise a mapping between each configuration and the corresponding identity of each configuration. | 06-05-2014 |
20150023373 | Adaptive (RLC) Segmentation - A method and nodes for providing adaptive segmentation in a higher protocol layer interacting with a lower protocol layer. An adaptable segmentation limit, defining a threshold of a largest Protocol Data Unit (PDU) that is to be submitted to a lower protocol layer, is deployed at a higher protocol layer interacting with the lower protocol layer. A PDU to be submitted to the lower protocol layer may match any transport block size that is available in the lower protocol layer. For each Service Data Unit (SDU) arriving at the higher protocol layer, it is determined if the respective SDU can fit into the segmentation limit or not. Each SDU that do not fit into the segmentation limit is segmented into PDUs which are smaller than or equal to the segmentation limit, while no segmentation is performed on SDUs that fit into the segmentation limit. | 01-22-2015 |