Patent application number | Description | Published |
20080259812 | Dimensioning Methods For Hsdpa Traffic - A method for determining the capacity that is needed on an lub link to fulfill Grade of Service (GoS) requirements in a Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN) for both Dedicated Channel (DCH) traffic and High-Speed Downlink Packet Access (HSDPA) traffic, the method comprising the steps of determining the bandwidth demand of the HSDPA traffic (ElasticDim); calculating an average bandwidth of the DCH traffic on the lub interface ( | 10-23-2008 |
20100062777 | Method and A System for Down Link Control in a Cellular Telephony System - A method for traffic control in a cellular telephony system ( | 03-11-2010 |
20100067383 | A METHOD FOR IMPROVED CONGESTION DETECTION AND CONTROL IN A WIRELESS TELECOMMUNICATIONS SYSTEMS - The invention discloses a method for detecting and controlling traffic congestion in a wireless telecommunications system ( | 03-18-2010 |
20100097930 | RNC Capacity Licensing - A method of controlling the rate of traffic flow through an Iub interface of a Radio Network Controller is described. The method includes obtaining a licensed rate, which defines the maximum throughput permitted through the Iub interface, at the Radio Network Controller. The rate of traffic flow through the Iub interface and all Iu interfaces of the Radio Network Controller is measured, and the extent to which packet switched traffic flow through the Iub interface exceeds the licensed rate identified. If the packet switched traffic flow through the Iub interface exceeds the licensed rate, packets are dropped from traffic flow through the Iub interface to reduce the traffic flow to the licensed rate. | 04-22-2010 |
20100203893 | ENHANCED FLOW CONTROL IN A CELLULAR TELEPHONY SYSTEM - The invention discloses a method ( | 08-12-2010 |
20100220594 | EFFICIENT FLOW CONTROL IN A RADIO NETWORK CONTROLLER (RNC) - In one aspect, a mechanism is provided to resolve the Iub transport network congestion in the uplink direction by using the transmission window of the RLC to control the transfer rate of the flow. The RNC ( | 09-02-2010 |
20100238803 | Efficient Flow Control in a Radio Network Controller (RNC) - 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 ( | 09-23-2010 |
20100260049 | Limiting RLC Window Size in The HSDPA Flow Control - In one aspect, a method and apparatus are disclosed that can provide an efficient and robust HSDPA flow control solution. The RNC ( | 10-14-2010 |
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 |
20110116406 | Method For Achieving an Optimal Shaping Rate For a New Packet Flow - The present invention relates to a method and an arrangement in a communication network node ( | 05-19-2011 |
20110176422 | Method and Arrangement in a Communication System - 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. | 07-21-2011 |
20120082033 | DYNAMIC CONTROL OF AIR INTERFACE THROUGHPUT - A method and network node for dynamically controlling throughput over an air interface between a mobile terminal and a radio telecommunication system. The method detects a type of service being utilized by the mobile terminal, and dynamically selects a target delay for the traffic between a base station and the mobile terminal. The detecting may be done by a Deep Packet Inspection (DPI) engine implemented in a core network node such as a Gateway GPRS Support Node (GGSN). When the mobile terminal activates a delay-sensitive service, the target delay is dynamically changed to a smaller value to reduce latency. When the mobile terminal deactivates all delay-sensitive services, the target delay is dynamically changed to a larger value to increase throughput. | 04-05-2012 |
20120106338 | DYNAMIC CONTROL OF AIR INTERFACE THROUGHPUT - A system, method, and network node for dynamically controlling throughput over an air interface between a mobile terminal and a radio telecommunication system. A Gateway GPRS Service Node (GGSN) receives a plurality of traffic flows for the mobile terminal and uses a Deep Packet Inspection (DPI) module to determine a target delay class for each traffic flow. The GGSN signals the target delay class of each traffic flow to a Radio Network Controller (RNC) utilizing per-packet marking within a single radio access bearer (RAB). The RNC defines a separate virtual queue for each delay class on a per-RAB basis, and instructs a Node B serving the mobile terminal to do the same. The Node B services the queues according to packet transmission delays associated with each queue. A flow control mechanism in the Node B sets a packet queue length for each queue to optimize transmission performance. | 05-03-2012 |
20120320746 | Method and Apparatus for Grant-Based Uplink Transmission Scheduling - In one aspect, the present invention advantageously provides far greater granularity in adjusting the maximum (schedulable) uplink bit rates of users than is directly available from a defined grant table that is used for making scheduled uplink grants to those users. As a non-limiting example, the EUL scheduler in a NodeB in a WCDMA network calculates the “effective” bit rate desired for one or more users over a given time interval, and determines the pattern of scheduling grants to make from the grant table over that interval, to produce the desired effective bit rate(s). This capability enables the EUL scheduler to make relatively fine fractional adjustments to the aggregate uplink data rate for a plurality of users, thus allowing much more precise reductions in the aggregate uplink data rate of those users. The EUL scheduler makes these more precise adjustments, for example, in response to indications of congestion on the backhaul connection between the NodeB and its supporting RNC. Grant variations also may be used in the HARQ processes of one or more users, for obtaining better bit rate control granularity. | 12-20-2012 |
20130058211 | Method of Congestion Detection in a Cellular Radio System - 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. | 03-07-2013 |
20130121161 | Apparatus and Method in a Telecommunications Network - An entity in a telecommunications network, for example a user equipment, determines a threshold value relating to a channel switching parameter that is being used by the telecommunications network to trigger a channel switching operation, and uses this threshold value and monitored traffic information to prevent a channel change from occurring, i.e. to maintain channel occupancy. A network node is adapted to remove additional traffic that has been generated by an entity in the telecommunications network to maintain channel occupancy. | 05-16-2013 |
20130148499 | Efficient Flow Control in a Radio Network Controller (RNC) - 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. | 06-13-2013 |
20130301416 | MULTI-LEVEL BEARER PROFILING IN TRANSPORT NETWORKS - A method is provided for transporting data packets over a telecommunications transport network. The data packets are carried by a plurality of bearers, the bearers each carrying data packets that relate to different ones of a plurality of services. In the method a multi-level bandwidth profiling scheme is applied to the data packets of each bearer. A series of information rates are assigned to a bearer, the profiling scheme identifying and marking each data packet of the bearer based on a desired resource sharing according to the minimum information rate with which the packet is conformant. The marked data packets are forwarded for transport through the transport network. If there is insufficient bandwidth available in the transport network to transport all data packets, data packets identified by the profiling and marked as only being conformant with a higher information rate are discarded before any data packets marked as being conformant with a lower information rate. | 11-14-2013 |
20130315063 | METHOD AND DEVICE FOR CONGESTION SITUATIONS - A Radio Network Controller, an RNC ( | 11-28-2013 |
20130322366 | Control of Data Flows over Transport Networks - A method of preparing data packets for transport over a telecommunications transport network is disclosed. The data packets relate to different ones of a plurality of services. The method includes inspecting each of the data packets to identify the service to which the data packet relates. The identified service of the packet is mapped to a Quality of Service (QoS) type. A bandwidth profiling scheme is applied to the data packets, the profiling scheme identifying and marking each data packet according to whether or not the data packet conforms with a predetermined committed information rate for the QoS type. The marked data packets are forwarded for transport through the transport network. Related devices are also disclosed. | 12-05-2013 |
20140003242 | HYBRID CONGESTION CONTROL | 01-02-2014 |
20140003243 | CONGESTION CONTROL IN AN HSPA SYSTEM | 01-02-2014 |
20140016460 | Technique for Handling a Data Packet Stream - A method of handling a data packet stream at different communication protocol layer levels of a communication protocol layer stack of an UMTS communication device is provided. The method comprises: Receiving a data packet stream at the communication device; Determining whether, in case of a loss of a data packet of the data packet stream, it is possible to retransmit the lost data packet to the communication device; and immediately transmitting data packets of the data packet stream succeeding the lost data packet from a MAC protocol layer level to a RLC protocol layer level if it is determined that the lost data packet cannot be retransmitted to the communication device, and otherwise storing data packets of the data packet stream succeeding the lost data packet for a third period of time at the MAC protocol layer level, which third period of time is longer than the second time period. | 01-16-2014 |
20140050145 | Methods, Radio Base Station and Radio Network Controller - It is presented a method performed in a first radio base station, RBS, in communication with a radio network controller, RNC. The RNC is configured for multi-flow HSDPA, High-Speed Downlink Packet Access, operation and packet data units, PDUs, are communicated toward a user equipment, UE, node via the first RBS and at least one second RBS. The method comprises: detecting PDU drop events and/or loss events; and communicating information from the RBS to the RNC, notifying of each detected PDU drop event and/or loss event. A corresponding RBS and RNC are also presented. | 02-20-2014 |
20140056128 | Radio Network Node, Network Control Node and Methods Therein - Embodiments herein relate to a method in a radio network node ( | 02-27-2014 |
20140056142 | Congestion Control for Multi Flow Data Communication - In a multi flow HSDPA system comprising a RNC ( | 02-27-2014 |
20140160928 | Technique for Handling Congestion Control - A method for congestion control in a transport network of a radio access network is disclosed. The method comprises receiving, by the control node, a first uplink flow through a first communication link in the transport network from a first radio access node and receiving, by the control node, a second uplink flow through a second communication link in the transport network from a second radio access node. If congestion is detected in the transport network for either uplink flow, the control node selectively triggers either Active Queue Management (AQM)-based congestion control at the control node, or local congestion control at the for the uplink flow. Triggering is carried out such that AQM-based congestion control is carried out for only one of the first uplink flow or the second uplink flow if congestion is detected for both the first uplink flow and the second uplink flow. | 06-12-2014 |
20140233391 | Method in a Base Station, a Base Station, Computer Programs and Computer Readable Means - The invention relates to a method | 08-21-2014 |
20140254381 | Congestion Handling in a Base Station of a Mobile Network - For implementing handling of congestions in a mobile network, a base station ( | 09-11-2014 |
20140293793 | Service-Aware Profiling for Transport Networks - A method is provided of transporting data packets over a telecommunications transport network. The data packets are carried by a plurality of bearers, each carrying data packets that relate to different ones of a plurality of services. In the method bandwidth profiling is applied to the data packets of each bearer, independently of the other bearers, to identify and mark the data packets of each of the bearers that are conformant with a predetermined maximum information rate for the bearer. The data packets are forwarded for transport through the transport network, wherein, if there is insufficient bandwidth available in the transport network to transport all data packets, data packets not identified by the profiling as being conformant are discarded, so as not to be transported through the transport network. | 10-02-2014 |
20140301225 | NON-CONGESTIVE LOSS IN HSPA CONGESTION CONTROL - A method and a network node for increased utilization of a transport network link over a transport network of a HSPA system. The method comprises detecting a data packet loss in receiving a data packet flow, and detecting data delay information of data packets as received. The method also comprises determining if the detected data packet loss comprise non-congestive data packet loss, based on the detected data packet loss and the detected data delay information. In addition, the method comprises, when the detected data packet loss comprises non-congestive data packet loss, for a pre-determined time period, omitting to perform a congestion action affecting the data packet flow. By determining whether a data packet loss is non-congestive or not, an unnecessary reduction of the bitrate over the transport network can be omitted. | 10-09-2014 |
20140321284 | Optimised Packet Delivery Across a Transport Network - A method of prioritising packets for delivery over a transport network interconnecting nodes of a mobile network, where a guaranteed minimum information rate over the transport network is specified for the mobile network. The method comprises, for each bearer to be injected into the transport network from the mobile network, specifying a bearer information rate and marking packets up to that rate as conformant with the bearer information rate and marking packets exceeding that rate as non-conformant with the bearer information rate. A plurality of traffic type streams from the mobile network are converged, each traffic type stream comprising a plurality of bearers. Packets of the converged traffic type streams are inspected to identify packets marked as conformant and non-conformant, and re-marking non-conformant packets, or at least a fraction of non-conformant packets, as conformant if the converged rate of conformant packets is less than said minimum information rate. The transport network prioritises the delivery of packets marked as conformant over those packets marked as non-conformant. | 10-30-2014 |
20140328170 | Enhanced Performance Service-Based Profiling for Transport Networks - A method is presented of transporting data packets over a telecommunications transport network. The data packets are carried by a plurality of bearers. For each of the bearers, independently of the other bearers, bandwidth profiling is applied to the data packets of the bearer to designate as ‘green’ data packets that are conformant with a predetermined maximum Information Rate for the bearer. One or more data packets is buffered for up to a predetermined maximum ‘green’ buffer time, during which if transporting the data packet would not cause the maximum information rate of the bearer to be exceeded, the data packet is designated as a ‘green’ data packet. The data packets are forwarded for transporting over the transport network. If there is insufficient bandwidth available in the transport network to transport all data packets, data packets that are not designated as ‘green’ data packets are discarded, so as not to be transported through the transport network. | 11-06-2014 |
20140341037 | Rerouting Technique - A technique for routing data frames in a telecommunications backhaul network ( | 11-20-2014 |
20150055479 | Technique for Cable Interface-Based Load Balancing Between Cells - A technique for cable interface-based load balancing between first and second cells is described. Each cell comprises cable and air interfaces defining a parameter set comprising load statuses of the cable and air interfaces. A method aspect being performed in a control entity comprises the steps of determining, in the first cell, the parameter set of the first cell, obtaining the parameter set of the second cell, determining whether the load statues of the cable and air interfaces of the first cell are low, whether the air interface load status of the second cell is low, and whether the cable interface load status of the second cell is high, and reconfiguring, if a result of the determination is affirmative, at least one air interface configuration parameter of the first cell so as to off-load at least a part of mobile-originated traffic from the second cell to the first cell. | 02-26-2015 |
20150063121 | Load Balancing Among Alternative Paths - A method and a transmitting node for redirecting of a flow of data packets to a path of alternative paths, and a method and a receiving node for enabling redirection of a flow of data packets to a path of alternative paths, where data packets are marked with a value indicating the importance of the data packets. The method for directing directs one or more flows of data packets for the alternative paths, wherein data packets marked with a higher value are prioritized over data packets marked with a lower value. Based on feedback information, the transmitting node redirects a flow of data packets to a second path of the alternative paths, if the metric of congestion indicates a higher congestion on the first path than on the second path. | 03-05-2015 |