Telefonaktiebolaget Lm Ericsson (publ)

Gambro Ab

Leif Mattisson

Béla Rathonyi

Sture Hobro

Erik Linderup

Bela Rathonyi

Gert-Inge Bertinsson

Goran Ohlsson

Gunilla Wejfeldt

Systems and methods for verifying compliance of a communication device with one or more requirement specifications is provided. In one exemplary embodiment, a method may be performed at a communication device for verifying compliance of the communication device with a requirement specification. Further, while a test loop is activated in the communication device, the method may include receiving, at a receiver of the communication device and on a downlink of a radio link, downlink data. In response to determining an occurrence of an event specific to verifying the compliance of the communication device with the requirement specification and used to control when the communication device transfers the received downlink data from the receiver to a transmitter of the communication device, the method may include transferring, from the receiver, to the transmitter, the received downlink data. Also, the method may include transmitting, from the transmitter on an uplink of the radio link, the received downlink data. The received downlink data transmitted on the uplink may be used to verify the compliance.

Methods, test systems and arrangements for verifying compliance with requirement specifications

A method for verifying compliance of a communication device with one or more requirement specifications is disclosed. The method comprises establishing a link between a test system and the communication device, wherein the establishing comprises configuring two or more bearers, one or more control channels, and one or more uplink packet filters; closing a test loop comprising the test system and the communication device, wherein the closing comprises activating a test loop function of the communication device; sending units of data associated with different service data flows in a downlink of the test loop from the test system to the communication device, each of the units of data including information representing the service data flow associated with the unit of data; receiving the units of data at the communication device; transferring the units of data to an uplink transmission arrangement of the communication device; and verifying, at the test system, that each of the units of data is transmitted, by the communication device in an uplink of the test loop to the test system, on a correct bearer corresponding to the service data flow associated with the respective unit of data according to the one or more uplink packet filters. Corresponding test system and test loop function arrangement are also disclosed.

A method and apparatus for testing point-to-multipoint services and other wireless communication services dependent on unidirectional radio bearers and/or unacknowledged mode operations is described herein. A wireless communication device activates a test module responsive to receiving a test activation message. During a test mode, the test module receives RLC data units from a test system via a unidirectional downlink radio bearer or a control channel. In one embodiment, the test module includes a metric evaluator that determines an error metric based on the received RLC data units. The test module reports the error metric to the test system. In another embodiment, the test module includes a loop-back module that loops-back at least a portion of the received RLC data units to the test system via a unidirectional uplink radio bearer.

Network layer test module for testing control channels and unidirectional radio bearers

A method for verifying compliance of a communication device with one or more requirement specifications is disclosed. The method comprises establishing a link between a test system and the communication device, wherein the establishing comprises configuring one or more bearers and one or more control channels; closing a test loop comprising the test system and the communication device, wherein the closing comprises activating a test loop function of the communication device; sending data in a downlink of the test loop from the test system to the communication device; receiving the data at the communication device; transferring at least some of the data to an uplink transmission arrangement of the communication device after a specific event has occurred; and verifying, at the test system, transmission in an uplink of the test loop from the communication device to the test system. Corresponding test system and test loop function arrangement are also disclosed.

Methods for measuring the flow differential through a dialysis machine are disclosed in which the dialysis machine includes a heat exchanger having a primary side and a secondary side for exchanging heat therebetween. The method includes measuring the temperature differences across the primary and secondary sides of the heat exchanger and calculating the flow differential based upon these measured temperature differences. Apparatus for measuring such a flow differential is also disclosed, as are methods for calibrating that apparatus.

Method and apparatus for measuring the flow differential in a dialysis

System and method for monitoring a flow of dialysis fluid in a dialysis

Apparatus for measuring fluid flow through a conduit including a measuring electrode and a ground electrode disposed in the conduit and connected to form an electrolytic cell, so that a voltage can be applied between the electrodes in order to cleanse deposits from the measuring electrode, and gases generated during the cleansing step can then be dissipated. Methods for measuring the fluid flow in such a manner are also described herein.

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Södra Sandby, Sweden

Leif Mattisson