Patents by Inventor Peter Lundh
Peter Lundh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9867069Abstract: The invention relates to a method and device (14) of controlling bit rate of a terminal (11, 12, 13) included in a group of terminals. To this end, a method is provided comprising the steps of acquiring a predetermined QoS parameter for the terminal, which parameter stipulates target QoS to be given to the terminal relative to other terminals in the group, and acquiring either one or both of (a) at least one measure of a channel condition of the terminal and (b) at least one capacity measure of the terminal. Further, the method comprises the step of controlling the bit rate of the terminal on the basis of a reference weighting factor created by a combination of the acquired predetermined QoS parameter, the acquired at least one measure of a channel condition of the terminal and/or the acquired at least one capacity measure of the terminal.Type: GrantFiled: February 22, 2012Date of Patent: January 9, 2018Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Nils Brännström, Erik Geijer Lundin, Peter Lundh
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Patent number: 9693345Abstract: According to an example method performed in a High Speed Downlink Packet Access (HSDPA) environment, a first device generates a High Speed Downlink Shared Channel (HS-DSCH) data frame that includes a plurality of blocks of packet data units. A first block of the plurality of blocks includes packet data units of a first length, and a second block of the plurality of blocks includes packet data units of a different, second length. The first device transfers the HS-DSCH data frame to a second device. The HS-DSCH data frame further includes, for each block of the plurality of blocks, a first information element that indicates a length of the one or more packet data units in the each block, and a second information element that indicates a quantity of packet data units in the each block.Type: GrantFiled: March 5, 2014Date of Patent: June 27, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Min Liao, Anna Larmo, Peter Lundh, Szilveszter Nádas, Ina Widegren
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Publication number: 20160037407Abstract: A method in a radio network node (140) for handling hand over of a user equipment (150) to a target cell. The target cells hares a physical cell identity(PCI) with at least a second cell in a cellular communications network. When the target cells hares the PCI with the at least second cell, the radio network node (140) sends (204) a message to the respective at least two cells requesting to set up a radio link to the user equipment(150) and comprising an indication to measure a characteristic of an up link synchronization and comprising an indication to send a report comprising a result of the indicated measurement to the radio network node (140). The radio network node (140) receives from the at least two cells a respective report, which respective report comprises a result of the indicated up ink measurement. The radio network node (140) selects (209) the target cell for hand over of the user equipment (150), based on the result in the report. Publ.Type: ApplicationFiled: April 8, 2013Publication date: February 4, 2016Inventors: Babak Alamshahi, Peter Lundh, Lars O Mårtensson
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Patent number: 9094866Abstract: The embodiments of the present invention relate to a method and a RBS to reduce the RNC load. This is achieved by letting the radio base station identify RRC connection requests and performing RRC connection rejects. In this way, excessive load of RRC requests done by typically Smart Phones can be rejected in a good way by the radio base station and therefore free up capacity in RNC, making it possible for RNC to execute useful traffic to a higher degree.Type: GrantFiled: February 1, 2011Date of Patent: July 28, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventor: Peter Lundh
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Patent number: 9066366Abstract: A method for traffic control in a cellular telephony system (100), each cell comprising at least one node, an RBS (130), for the control of traffic to and from users (150) in the cell. The traffic to each UE (150) can comprise at least one flow, and the method is intended for control of the flows in the traffic to UEs (150) in the system (100), and comprises one control function for each controlled flow to each of said UEs (150). Said control function comprises a congestion avoidance function (240, 440) which detects the presence or absence of congestion in a flow to an UE (150), and which, upon congestion or low utilization of the network reduces the bit rate to the UE (150) in a non-linear fashion, and which, in the absence of congestion, linearly increases the bit rate of the traffic to the UE (150).Type: GrantFiled: November 28, 2006Date of Patent: June 23, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Szilveszter Nádas, Peter Lundh, Sándor Rácz, Zoltán Nagy
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Publication number: 20150163693Abstract: Congestion in a radio access network (RAN) associated with transporting uplink information originating from one or more mobile terminals is detected. That detected RAN congestion is reduced using any suitable technique (several examples are described) and may be implemented in one or more nodes in the RAN. One advantageous (but non-limiting) application is to a RAN that supports high speed uplink packet access (HSUPA) and/or one or more enhanced uplink dedicated channels (E-DCHs).Type: ApplicationFiled: February 18, 2015Publication date: June 11, 2015Inventors: Mats SÅGFORS, Peter LUNDH
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Patent number: 8964551Abstract: A method is disclosed for controlling, according to an additive increase multiplicative decrease (AIMD) principle, the bandwidth sharing among contending traffic flows over a transport network between a radio network controller and a radio base station. According to the method, a relative bit-rate (RBR) is determined (210) for each traffic flow; and the bit-rates of said traffic flows are controlled (220) such that additive increase operations of said AIMD principle depend on the respective RBR of each traffic flow. Embodiments of the invention strive at supporting Gold, Silver and Bronze HSDPA and/or EUL bit-rate subscriptions over a single TN QoS class.Type: GrantFiled: March 19, 2009Date of Patent: February 24, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Peter Lundh, Lars Blomstergren, Szilveszter Nadas
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Publication number: 20150023195Abstract: The invention relates to a method and device (14) of controlling bit rate of a terminal (11, 12, 13) included in a group of terminals. To this end, a method is provided comprising the steps of acquiring a predetermined QoS parameter for the terminal, which parameter stipulates target QoS to be given to the terminal relative to other terminals in the group, and acquiring either one or both of (a) at least one measure of a channel condition of the terminal and (b) at least one capacity measure of the terminal. Further, the method comprises the step of controlling the bit rate of the terminal on the basis of a reference weighting factor created by a combination of the acquired predetermined QoS parameter, the acquired at least one measure of a channel condition of the terminal and/or the acquired at least one capacity measure of the terminal.Type: ApplicationFiled: February 22, 2012Publication date: January 22, 2015Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Nils Brännström, Peter Lundh, Erik Geijer Lundin
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Patent number: 8908524Abstract: A method for detecting congestion in a transport network is provided. The congestion detection utilizes flow control including relative bitrate. The method comprises counting the number of detected frame loss events for a flow. The method further comprises determining if the number of detected frame losses is greater than or equal to a corresponding threshold, wherein the threshold used is an individual threshold for the flow set taking into account relative bitrate weights of the flow, and detecting transport network congestion for the flow when the number of detected frame losses is greater than or equal to the corresponding threshold.Type: GrantFiled: March 30, 2010Date of Patent: December 9, 2014Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Sándor Rácz, Lars Blomstergren, Peter Lundh, Szilveszter Nádas
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Publication number: 20140247783Abstract: According to an example method performed in a High Speed Downlink Packet Access (HSDPA) environment, a first device generates a High Speed Downlink Shared Channel (HS-DSCH) data frame that includes a plurality of blocks of packet data units. A first block of the plurality of blocks includes packet data units of a first length, and a second block of the plurality of blocks includes packet data units of a different, second length. The first device transfers the HS-DSCH data frame to a second device. The HS-DSCH data frame further includes, for each block of the plurality of blocks, a first information element that indicates a length of the one or more packet data units in the each block, and a second information element that indicates a quantity of packet data units in the each block.Type: ApplicationFiled: March 5, 2014Publication date: September 4, 2014Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Min Liao, Anna Larmo, Peter Lundh, Szilveszter Nádas, Ina Widegren
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Patent number: 8767633Abstract: A first device (124) in a High Speed Downlink Packet Access environment (100) may generate a High Speed Downlink Shared Channel data frame (700, 730, 735, 750) that includes a group of packet data units, where a first packet data unit of the group of packet data units is of a different length than a second packet data unit of the group of packet data units. The first device (124) may further transfer the High Speed Downlink Shared Channel data frame (700, 730, 735, 750) to a second device (122).Type: GrantFiled: January 7, 2008Date of Patent: July 1, 2014Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Min Liao, Anna Larmo, Peter Lundh, Szilveszter Nádas, Ina Widegren
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Patent number: 8761011Abstract: A mechanism is provided to resolve the Iub transport network congestion efficiently for HSDPA by dynamic adjustment of the transmit window of the RLC. The RLC protocol is extended with congestion control functionality. The Iub TN and Uu congestion detection method in the Node-B signals the congestion to the RNC, and this congestion indication is used by RLC to react on the congestion situation. In the RNC, the transmission window of the RLC is adjusted to control the flow rate. When congestion is detected, the RLC transmission window size is decreased. When there is no congestion, then the RLC transmission window size is increased automatically. Different types of congestion are distinguished and are handled in different ways. Alternatively, congestion control is achieved without any modification in the RLC layer from the existing standard. Here, RLC STATUS PDUs are used to change the RLC transmission window size.Type: GrantFiled: January 24, 2013Date of Patent: June 24, 2014Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Sándor Rácz, Zoltán Nagy C., Szilveszter Nádas, Peter Lundh
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Patent number: 8693329Abstract: The present invention is related to a method, base station (RBS) and computer program for quickly recovering from a detected congestion over the air interface. First the current bitrate at the which the air interface congestion has been detected is stored as a new reference bitrate. Thereafter, the base station (RBS) requests a reduction of the bitrate associated with the air interface. When the congestion condition has subsided the base station (RBS) requests a boost of the bitrate associated with the air interface up to the stored new reference bitrate. When finally the new reference bitrate has been reached, the base station (RBS) requests a linear increase of the bitrate associated with the air interface.Type: GrantFiled: June 24, 2008Date of Patent: April 8, 2014Assignee: Unwired Planet, LLCInventors: Lars Blomstergren, Peter Lundh, Szilveszter Nádas, Zoltán Nagy
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Publication number: 20140086057Abstract: Congestion in a radio access network (RAN) associated with transporting uplink information originating from one or more mobile terminals is detected. That detected RAN congestion is reduced using any suitable technique (several examples are described) and may be implemented in one or more nodes in the RAN. One advantageous (but non-limiting) application is to a RAN that supports high speed uplink packet access (HSUPA) and/or one or more enhanced uplink dedicated channels (E-DCHs).Type: ApplicationFiled: December 2, 2013Publication date: March 27, 2014Applicant: Unwired Planet, LLCInventors: Mats SÅGFORS, Peter LUNDH
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Patent number: 8605592Abstract: The present invention proposes a solution in the area of HSDPA flow control. It proposes an improvement to transport network congestion detection and avoidance. The improvement proposes to use a measurement of incoming bitrate to determine the reduction of bitrate after a transport network congestion event. The advantage is that high bitrate reduction is only used when it is necessary; otherwise only small bitrate reduction is used, which results in small oscillation, and consequently higher transport network utilization.Type: GrantFiled: December 19, 2008Date of Patent: December 10, 2013Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Szilveszter Nadas, Peter Lundh, Zoltan Nagy, Sandor Racz
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Publication number: 20130324105Abstract: The embodiments of the present invention relate to a method and a RBS to reduce the RNC load. This is achieved by letting the radio base station identify RRC connection requests and performing RRC connection rejects. In this way, excessive load of RRC requests done by typically Smart Phones can be rejected in a good way by the radio base station and therefore free up capacity in RNC, making it possible for RNC to execute useful traffic to a higher degree.Type: ApplicationFiled: February 1, 2011Publication date: December 5, 2013Inventor: Peter Lundh
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Patent number: 8488464Abstract: A radio base station (RBS) is described herein that detects when a high-speed downlink shared channel (HS-DSCH) data frame (110) is lost after it was transmitted by a radio network controller (RNC) over a transport link (Iub) towards the RBS (104). To accomplish this, the RBS (104) upon receiving a HS-DSCH data frame (110) inspects a frame sequence number (302) located within the received HS-DSCH data frame (110) to determine if the frame sequence number (302) is in sequence with a frame sequence number (302) located within a previously received HS-DSCH data frame (110). If the two frame sequence numbers (302) are not in sequence, then one or more HS-DSCH data frames (110) that were previously transmitted towards the radio base station (104) have been lost.Type: GrantFiled: December 22, 2004Date of Patent: July 16, 2013Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Peter Lundh, Szilveszter Nadas
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Publication number: 20130148499Abstract: A mechanism is provided to resolve the Iub transport network congestion efficiently for HSDPA by dynamic adjustment of the transmit window of the RLC. The RLC protocol is extended with congestion control functionality. The Iub TN and Uu congestion detection method in the Node-B signals the congestion to the RNC, and this congestion indication is used by RLC to react on the congestion situation. In the RNC, the transmission window of the RLC is adjusted to control the flow rate. When congestion is detected, the RLC transmission window size is decreased. When there is no congestion, then the RLC transmission window size is increased automatically. Different types of congestion are distinguished and are handled in different ways. Alternatively, congestion control is achieved without any modification in the RLC layer from the existing standard. Here, RLC STATUS PDUs are used to change the RLC transmission window size.Type: ApplicationFiled: January 24, 2013Publication date: June 13, 2013Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Sándor Rácz, Zoltán Nagy C, Szilveszter Nádas, Peter Lundh
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Patent number: 8400973Abstract: A network includes a first node and a second node and data frames are transmitted from the first node to the second node. Each of the data frames carry information belonging to one of a plurality of data flows. In a flow control unit (125) there is an estimate or measure determining unit (1201) for determining for each of the data flows, at the ends of first time periods having a predetermined first length, an estimate of or a measure representing the total number of received data frames that have been faulty during the first time period. A reference calculating unit (1101) is connected to the estimate or measure determining unit for calculating, based on the determined estimate or measure, a bandwidth capacity reference value determining the currently maximum allowable bandwidth for transmission from the data transmitting node to the data receiving node. The first node can be a radio network controller and the second node a radio base station, the data frames forwarded in an HS-DSCH over an Iub interface.Type: GrantFiled: August 26, 2005Date of Patent: March 19, 2013Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Peter Lundh, Szilveszter Nádas
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Publication number: 20130058211Abstract: A method for detecting congestion in a transport network is provided. The congestion detection utilizes flow control including relative bitrate. The method comprises counting the number of detected frame loss events for a flow. The method further comprises determining if the number of detected frame losses is greater than or equal to a corresponding threshold, wherein the threshold used is an individual threshold for the flow set taking into account relative bitrate weights of the flow, and detecting transport network congestion for the flow when the number of detected frame losses is greater than or equal to the corresponding threshold.Type: ApplicationFiled: March 30, 2010Publication date: March 7, 2013Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Sándor Rácz, Lars Blomstergren, Peter Lundh, Szilveszter Nádas