Methods and apparatuses for acquiring/providing available channel information using Generic Advertisement Service (GAS) protocol in a wireless local area network (WLAN) are disclosed. AP (Access Point) station has a capability to acquire information for available channels from a database using a specific protocol related to an operation within the White Space (e.g. Access Network Query Protocol (ANQP)). And, non-AP station can retrieve the information for available channels by transmitting a Generic Advertisement Service (GAS) initial request frame to the AP station, wherein the GAS initial request frame comprises an Advertisement Protocol Element whose element ID indicates the specific protocol, and receiving a GAS initial response frame comprising a White Space Map (WSM) the specific protocol. The WSM comprises one or more white space channel units, and each of the white space channel units comprises a channel number field indicating one of the available channels and a power constraint field indicating a maximum allowable power on the indicated channel.

The present invention is a handover control method in a mobile communication system that performs handover control by switching base stations that communicate with a mobile terminal as the mobile terminal moves. In this handover control method, a mobile control device selects one or more handover base station candidates based on the communication state, and based on the communication capabilities of the handover base station candidates, decides a transmission rate for multicasting communication data, and transmits communication data to each of the handover base station candidates at the decided transmission rate, and a handover base station candidate that is decided as a handover base station sends the saved multicast communication data to the mobile terminal.

A touch sensitive screen mobile information apparatus having a wireless communication unit for wireless device discovery is herein disclosed. Close proximity wireless device discovery is enabled by wireless searching near distance via radio frequency field for a wireless device, receiving information from the wireless device over the near distance wireless communication, and storing the received information at the information apparatus for future wireless connections. Authentication or pairing of devices may be eliminated due to close proximity of the direct wireless device discovery. After wireless device discovery, the information apparatus and the wireless device may become locked or paired for subsequent wireless communication over any number of wireless communication protocols or standards (e.g., Bluetooth, IEEE 802.11, 2.4GHz) without the need to repeat wireless discovery or pairing. Examples of information apparatus include smart phones, digital camera, laptops, or information pads. Examples of wireless devices include televisions, audio output devices, or printers.

In a scanner system comprising a portable terminal and a scanner device, the scanner device has a mounting portion on which the portable terminal is mounted and electrically connected to the scanner device. The scanner device acquires identification information of the portable terminal when the scanner device detects mounting of the portable terminal on the mounting portion, and transmits a connection request to the portable terminal having the identification information. The portable terminal activates an application for establishing communication with the scanner device in response to the connection request from the scanner device when the mounting of the portable terminal on the mounting portion is detected. Thus, the communication between the portable terminal and the scanner device can be established without operation of a user.

Various embodiments provide for systems and methods for signal conversion of one modulated signal to another modulated signal using demodulation and then re-modulation. According to some embodiments, a signal receiving system may comprise an I/Q demodulator that demodulates a first modulated signal to an in-phase (“I”) signal and a quadrature (“Q”) signal, an I/Q signal adjustor that adaptively adjusts the Q signal to increase the signal-to-noise ratio (SNR) of a transitory signal that is based on a second modulated signal, and an I/Q modulator that modulates the I signal and the adjusted Q signal to the second modulated signal. To increase the SNR, the Q signal may be adjusted based on a calculated error determined for the transitory signal during demodulation by a demodulator downstream from the I/Q modulator.

A method and system are provided for controlling uplink transmission power in a wireless communication system. At least one of a plurality of downlink carriers and a plurality of uplink carriers are aggregated, and the plurality of downlink carriers and the plurality of uplink carriers are mapped between a User Equipment (UE) and a network in the wireless communication system. A message relating to uplink carrier transmission power is received at the UE from the network via a downlink carrier. Uplink transmission power of one or more uplink carriers is controlled in accordance with the message and aggregation and mapping of at least one of the downlink carrier and the one or more uplink carriers.

A cover mechanism is provided for an opening and closing device, which includes a fixed plate arranged at a first housing; a moving plate arranged at a second housing; a hinge arm that is arranged between the two plates and rotates to move the moving plate between a closed position where the first and second housings overlap and an open position where surfaces of the first and second housings are substantially coplanar; and a recess formed at the second housing that prevents the hinge arm from interfering with the second housing in the open position. The cover mechanism includes a cover arranged at the moving plate that covers the recess when the moving plate is positioned at the closed position and moves from the covering position by engaging with and being urged by the rotating hinge arm; and an urging part that urges the cover toward the covering position.

Methods and apparatus for managing multiple user access control entities or clients. For example, in one embodiment, a “wallet” of electronic subscriber identity modules (eSIMs) may be stored and used at a user device and/or distributed to other devices for use thereon. In another embodiment, a networked server may store and distribute eSIM to a plurality of user devices in communication therewith. A database of available eSIM is maintained at the wallet entity and/or at the network which enables request for a particular eSIM to be processed and various rules for the distribution thereof to be implemented. Security precautions are implemented to protect both user and network carrier specific data as the data is transmitted between networked entities. Solutions for eSIM backup and restoration are also described.

Methods and systems are provided for prioritizing carriers in femtocell frequency-hopping pilot beacons. A femtocell receives registration requests from a number of mobile devices requesting to hand off service from a macro-network carrier to the femtocell. The femtocell identifies the macro-network carrier that each mobile device has handed off from. The femtocell then uses that information to prioritize future broadcasts of its frequency-hopping pilot beacon on those macro-network carriers on which the most mobile devices have handed off from. The prioritization could take the form of broadcasting more often on the higher priority one or more carriers per cycle, or broadcasting for a longer continuous period of time on the higher priority one or more carriers per cycle.

The mobile phone includes an optical sensor, a display element, a pixel circuit portion where a plurality of pixels having a plurality of transistors are arranged in matrix, an optical sensor control circuit which is connected to an optical sensor driver circuit for driving the optical sensor and reads a signal from the optical sensor, a display portion control circuit which is connected to a display element driver circuit for driving the display element and outputs an image signal for displaying an image on a display portion, a gradient detection portion for outputting a signal in accordance with a gradient of the mobile phone, and an arithmetic circuit for performing display in the pixel circuit portion by switching image signals output to the display portion control circuit with a signal from the gradient detection portion.

Methods and apparatus for performing radio resource management (RRM) measurements in a heterogeneous network (HetNet) are provided in an effort to prevent failure of RRM measurement procedures in a dominant interference scenario. Several alternatives are provided for determining particular resources (e.g., subframes) to use for performing the RRM measurements, wherein the particular resources are based on cooperative resource partitioning between cells of the HetNet, wherein the cells may be of different types (e.g., macro, pico, or femto cells). These alternatives include, for example: (1) intra-frequency or intra-RAT (radio access technology) alternatives, which may involve transmitting resource partitioning information (RPI) in or deriving non-serving cell RPI based on the serving cell's RPI, as well as (2) inter-frequency or inter-RAT alternatives, where the RRM measurements may be performed during a measurement gap.

Apparatus and methods are disclosed related to low-voltage radio transmitters with high spectral purity. One such apparatus includes a baseband path with a predistortion stage, a programmable filter, and an upconverter core. In an embodiment, the programmable filter is placed between the predistortion stage and the upconverter core. In an embodiment, the programmable filter is configured by a controller to reject out-of-band noise introduced at the predistortion stage or earlier.

Reliable detection of the configuration of transmit antennas includes obtaining a data for transmission, encoding the data, and modulating the data. During the modulating of the data, the data may be configured in such a way as to convey the configuration of the antennas through the modulation of the data. An antenna configuration is obtained by obtaining a representation of the antenna configuration, and masking the data with an error correcting code, where the mask corresponds to the antenna configuration.

Methods, systems, and devices are described for communicating physical layer wireless parameters over an application programming interface. A wireless modem of a wireless device may measure at least one physical layer wireless parameter. The wireless modem may report the at least one physical layer wireless parameter to an application running on the wireless device over an application programming interface between the wireless modem and the application. A behavior of the application may be adapted to control wireless communications between the application and a network based on the at least one physical layer wireless parameter reported by the wireless modem. Other aspects, embodiments, and features are also claimed and described.

A mobile station includes a measurement unit that measures radio qualities for a serving cell and a candidate switching target cell; a cell switching determination unit that determines whether the radio quality of the serving cell is less than a reference quality corresponded in advance with a predetermined throughput, wherein, when the radio quality of the serving cell is less than the reference quality, the cell switching determination unit determines whether the serving cell is to be switched to the candidate switching target cell by comparing the radio quality of the serving cell with that of the candidate switching target cell; and a radio communication unit that transmits a signal for requesting the switching of the serving cell, and that receives a signal for instructing the switching of the serving cell from a network apparatus.

A method for user detachment when a handover or change occurs in a heterogeneous network is provided. The method includes: a user equipment (UE) is handed over or switched from a source network to a target network; a network element on a network side determines whether to detach the UE from the source network, and if yes, the network element on the network side detaches the UE from the source network. A system and a device for user detachment when a handover or change occurs in a heterogeneous network, and another method for user detachment when a handover or change occurs in a heterogeneous network are also provided.

In a wireless base station, a specific information receiver receives specific information delivered from a higher-level device to a wireless terminal. A specific information deliverer delivers the specific information to the wireless terminal via multiple physical channels activated in a wireless base station. Where a common channel via which information is periodically broadcast to multiple wireless terminals and a shared channel of which available radio resources are allocated to wireless terminals to transmit voice data and the like to the terminals are activated in the wireless base station, for example, the specific information deliverer can deliver the specific information using the common channel if the wireless terminal is in a standby state, and can deliver the specific information using the shared channel if the wireless terminal is in a communicating state.

The present invention relates to a method for communicating between a primary station and at least one secondary station, comprising configuring each secondary station to search at least one of a plurality of search spaces having a first structure, said first structure consisting of at least a first number of resource sets having a first size, where at least one resource set might be used to transmit a message to the considered secondary station, changing the search space structure to a second structure different from the first structure in response to a signalling message.

This document discusses a method and device for initiating cell measurement. An initiating condition for initiating the measurement of a Closed Subscriber Group (CSG) cell and/or a Hybrid cell is preset by the network side. The measurement of the CSG cells and/or Hybrid cells is initiated by a User Equipment (UE) when the initiating condition is satisfied. The UE automatically initiates the measurement of the CSG cell and/or Hybrid cell when the UE is close to its own footprint area or fingerprint area.

The embodiments of the present invention disclose a method and a device for resource configuration. The method includes: determining an extra resource block existing in a wireless resource, where the extra resource block is a resource that cannot be identified by a long term evolution system; configuring transmission power of a resource element in the extra resource block according to a power configuration rule; and sending a signal on the resource element in the extra resource block according to configured transmission power. With the preceding technical solution, an extra resource block can be used for transmitting a signal, so that a resource utilization rate may be improved.

A method for locating at least one individual located remotely from a broadcast network. An analysis unit compares user profiles, dynamic locations stored in the communicator location database, and/or fixed locations entered into the analysis unit. A data set of at least one matching individualized locatee user profile is generated and the individualized locatee user profile is transmitted to the locator via the locator's communicator device.

A method for locating at least one individual located remotely from a broadcast network. An analysis unit compares user profiles, dynamic locations stored in the communicator location database, and/or fixed locations entered into the analysis unit. A data set of at least one matching individualized locatee user profile is generated and the individualized locatee user profile is transmitted to the locator via the locator's communicator device.

The present invention discloses a method of a terminal to reduce interference between cells in a multicell system. In more detail, the method includes: receiving information on at least one adjacent base station from a serving base station; receiving a reference signal from the at least one adjacent base station on the basis of the information on the at least one adjacent base station; measuring interference for each transmitting antenna of the at least one adjacent base station by using the reference signal; and transmitting interference information on the each transmitting antenna to the serving base station.

A wireless communication system is provided that includes a wireless communication device in wireless communication with a base station and mobile stations. The wireless communication device includes first and second transceivers coupled to each other. The first transceiver is coupled to an antenna and is operable to communicate with the base station, which is also in wireless communication with other wireless communication devices. The second transceiver is coupled to another antenna and is in wireless communication with the plurality of mobile stations. The first transceiver receives a first signal from the base station intended for a one of the mobile stations, and in response the second transceiver transmits the first signal to the mobile station. The second transceiver receives a second signal from the mobile station intended for the base station, and in response the first transceiver transmits the second signal to the base station.

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 (18) in a communication network. The state transition time is reduced by retaining in the user equipment (18) one or more information parameter, such as the radio network temporary identifier for a high speed downlink shared channel (H-RNTI), when performing a state transition to said power saving state so as to enable a time reduction when said user equipment switches back from said power saving state.

A computer-implemented method and computing system for identifying, using one or more computing devices, an appointment scheduled for at least one user. Some embodiments may include determining, using the one or more computing devices, a present location for the at least one user and generating, using the one or more computing devices, a reminder for the appointment based upon, at least in part, the present location.

The invention concerns a method for optimizing antenna pattern assignment for a first wireless communication device forming a wireless network with at least one second wireless communication device, each of said communication device being equipped with a multi-sector antenna, an antenna pattern being a combination of said antenna sectors, said communication devices being adapted for sending a request and for receiving a response using a current antenna pattern assignment, said method comprising a step of: evaluating by said first communication device a first value;sending by said first communication device to said second communication device a broadcast request comprising said valuereceiving by said first communication device, a response to said broadcast request, said response being sent by said second communication device, said response depending on a second value evaluated by said second device;Switching or not, by said first communication device, to a new antenna sector assignment depending on said response; According to the invention the first value is evaluated by minimizing a first local function according to the received signal strength received by said first communication device having said current antenna pattern assignment and the second value is evaluated by minimizing a second local function according to the received signal strength received by said second communication device for its own current antenna pattern assignment.

This provides for controlling mobile device functions and features. For example, it limits or disables the use of some of mobile device features which could cause distraction to the user, when the user is engaged in another activity. In an example, it enables other mobile device features based on occurrence of events related to the user or environment. Another example addresses controlling the mobile device features, such as SMS, while the user is in a vehicle or driving. Another example restricts the ability of the driver of a vehicle to text, while the vehicle is in motion, by automatically disabling the texting ability of mobile device within and around the perimeter of the driver's seat. Other variations, examples, improvements, detection mechanisms, models, techniques, calculations, verification mechanisms, and features are also described in details.

A voicemail receptionist system includes a memory and a processor. The memory can store data relating to one or more users. An incoming communication can be handled by the voicemail receptionist system and provided with functionality based upon a user's preferences, for example. The data stored by the voicemail receptionist system can be updated at any time, or automatically updated upon updating of the data, or upon occurrence of a trigger event. Voicemail receptionist functionality can include standard voicemail system functionality as well as functionality relating to email, text messaging, MMS messaging, calendar features, schedule announcements, location data, as well as other features.

Provided is a method for detecting a network or device and a neighbor thereof, in order to detect networks or devices which substantially interfere with each other and to manage resources in consideration of the substantial interfering relationships so that the networks or devices can efficiently coexist. To this end, according to an embodiment of the present invention, a method for detecting a neighbor of a television band device (TVBD) network or device comprises the steps of: transmitting a request to a coexistence manager which serves the TVBD network or device; and receiving neighbor information on the TVBD network or device in response to the request, wherein the neighbor information includes an identifier of a neighbor TVBD network or device which interferes with the TVBD network or device, and the neighbor information is based on operating channels of the TVBD network or device and the neighbor TVBD network or device.

A device for reducing sound from an air treatment unit includes, in one embodiment, a wall curb. The air treatment system includes a supply opening and a return opening. The wall curb includes a frame portion defining an interior chamber. A partition divides the interior chamber into a supply plenum in a first portion of the interior chamber and a return plenum in a second portion of the interior chamber. A curb supply opening is formed through the perimeter frame in communication with the supply plenum. A curb return opening is formed through the perimeter frame in communication with the return plenum. The curb return opening is positioned such that airflow through the return plenum is non-linear and a sound absorbing material may be positioned on at least some inside surfaces of the return plenum.

A cabinet structure for a switchgear assembly. The cabinet structure includes a cabinet having upper and lower vents and a breaker cradle for holding a circuit breaker having primary disconnects for connecting the circuit breaker to bus bars. The cabinet further includes an air passageway located between the upper and lower vents, wherein the air passageway extends vertically through the primary disconnects and the cabinet. Further, the cabinet includes a fan module having at least one fan for drawing outside air through the lower vent, the air passageway and the primary disconnects for cooling the primary disconnects.

The invention provides storage enclosure, comprising an enclosure housing; one or more drawers slidably arranged within the enclosure housing, wherein each drawer has a pivotably mounted midplane having storage media coupled thereto wherein the storage media are coupled to both sides of the pivotably mounted midplane.

An air guide element (10) for an aircraft air conditioning system comprises a housing (12), which has an air inlet opening (14) and an air outlet opening (16). The air inlet opening (14) and the air outlet opening (16) are disposed in such a way and the housing (12) is shaped in such a way that air that is fed to the air guide element (10) through the air inlet opening (14), as it flows through the air guide element (10), is deflected at an angle of ca. 45° to 135° relative to the direction of the air flow through the air inlet opening (14). A cross-sectional area of flow of the housing (12) that is disposed at right angles to the direction of the air flow through the air outlet opening (16) is subdivided into at least two regions (18a, 18b, 18c). In each of said regions (18a, 18b, 18c) an easily accessible, removable and exchangeable calibrating element (20a, 20b, 20c) is disposed, which is designed to generate, in the air flow passing through a region (18a, 18b, 18c) that is associated with a respective calibrating element (20a, 20b, 20c), a pressure loss that is constant over said region (18a, 1b, 18c).

A system for ventilating an explosion hazard region of an aircraft includes a ram-air channel, which has an air inlet for feeding ambient air into the ram-air channel as well as an air outlet. The ram-air channel is devised to feed air to a device that is to be cooled on board the aircraft. A ventilation line has an air inlet for feeding air flowing through the ram-air channel into the ventilation line as well as an air outlet. The ventilation line is devised to feed air to a region of the aircraft that is to be ventilated. An accumulator is disposed between the ram-air channel and the air inlet of the ventilation line and is devised to convert the dynamic pressure of the air flow conveyed through the ram-air channel at least partially into static pressure for regulating flow through the explosion hazard region.

A system for air-conditioning an aircraft cabin includes an air conditioning unit connected to a central mixer, a first recirculation system designed to remove exhaust air from a first aircraft cabin region and connected to the central mixer, and a second recirculation system designed to remove exhaust air from a second aircraft cabin region and connected to a local mixer. A control device is designed to control the second recirculation system to reduce an air volume flow being removed from the second aircraft cabin region when shifting from a first operating state (e.g., normal operation) to a second operating state (e.g., defined operating situations such as when quick cooling is desired). The air volume being removed from the first aircraft cabin region may be increased accordingly in the second operating state.

A tractor cab HVAC system has a blower (22) which draws air into the system via air intake means (13) in the roof (14) of the cab (10). Ducting (15) in the roof of the cab directs air drawn in via the intake means down the center of one or more hollow adjacent pillars (16) of the cab to an air filter (18) contained in a housing (20) located between the adjacent pillars. Further ducting (19) extends from the air filter housing to an HVAC unit (11), the HVAC unit processing the air drawn into the system prior to discharging the processed air into the cab. The filter housing (20) is of generally rectangular form and is connected at opposite ends to the two hollow adjacent pillars (16) of the cab via inlet openings (20a) in the housing to allow the passage of intake air from the pillars to the filter (18).

This application relates to ventilation systems, more particularly to roof ventilation systems that help to protect buildings against fires. The roof vent has an ember impedance structure that impedes the entry of flames and embers or other floating burning materials while still permitting sufficient air flow to adequately ventilate a building. Several configurations of vents employing baffle members and fire-resistant mesh material are described, which can substantially prevent the ingress of floating embers and flames.

The present invention is directed to apparatus and methods for cooling computer servers and/or electrical equipment in a rack device for data centers or telecommunication centers.

A vehicle is provided including a battery module, a DC/DC converter module portioned from the battery module, a duct, one blower, and a jumper duct. The battery module includes inlet and outlet ports. The DC/DC converter module includes inlet and outlet ports. A duct is arranged to direct cooling air into each of the inlet ports. The blower is arranged to draw cooling air from the duct, through the modules, and out the outlet ports. The jumper duct is arranged up stream of the blower with the converter outlet port, and configured to reduce an effective cross sectional area of the converter outlet port to define a flow rate of the cooling air into the battery inlet port.

A chassis and rack system is disclosed in which a chassis separated into two separate enclosures by a central partition. Each of the enclosures is sized to receive a computer system. The partition includes a pair of vertically oriented vents, with each of the vents in fluid communication with one of the enclosures and the computer system contained therein. Heated air is removed from each computer system through the vent in the partition that is associated with the computer system. Multiple chassis may be placed one atop another in a vertical configuration in which each chassis is either directly above or directly below another chassis. In this vertical configuration, the vents form a vertically oriented common plenum that can be used to evacuate air from multiple chassis arranged in a rack.

An installation for cooling an electronic device includes an air conditioner having an air outlet for blowing cooling air to a room; a first detector adjacent to the air outlet of the air conditioner, for detecting a temperature of the cooling air; a rack accommodating the electronic device, the rack having an air inlet for receiving the cooling air from the air conditioner and an air outlet for exhausting air to the room; a second detector adjacent to the air inlet of the rack, for detecting a temperature of air received through the air inlet of the rack; and a controller for acquiring the temperatures detected by the first and the second detectors, and controlling a quantity of the cooling air blown from the air outlet of the air conditioner so as to decrease a difference between the temperatures detected by the first and the second detectors.

A damper blade is moved within an air control module connected to the discharge of a high-velocity blower, thereby modulating the electric power consumption of the blower motor.

A rack server system includes a container, an electrically conductive component, a power supply, a signal connecting base, a server, and an RMC. The electrically conductive component and the signal connecting base are fixed in the container. The power supply is electrically connected to the electrically conductive component for supplying a direct current power. The signal connecting base includes multiple connectors. The server, disposed in the container removably, includes a power input port and a connecting element. The power input port is electrically connected to the electrically conductive component removably. The connecting element is connected to the connector removably. When the connecting element is electrically connected to the connector, the RMC communicates with the server via the connecting element and the one of the connectors and determines the position of the server in the container according to another position of the connector which is electrically connected to the server.

Apparatus, systems and methods of 110 (one hundred ten) CFM (cubic feet per minute) generating ventilation fans for bathrooms with grill covers and with or without lights in the grill covers. Spring clip type washers can attach the grill covers to the housings. Suspension brackets directly attached to outer side walls of the housing can support the housings. One suspension bracket can be mounted on a bottom wall of the housing and another suspension bracket of equal length can be mounted on a side wall of the housing that is oriented perpendicular to the bottom wall. Bent flanges on the suspension brackets can be on opposite ends of the respective brackets. A lens cover can cover a light box that holds light sources centrally located in the grill cover. The grill cover can include vent openings that allow incoming air to bypass the light sources that can be located inside of the light box.

A method of controlling the ventilation system for an energy source in a fuel cell vehicle is disclosed, which includes an HVAC system, a fluid reserve, and a rechargeable energy storage system (RESS), capable of controlling a temperature of the RESS to militate against damage to or a shortened life of the battery, while maximizing vehicle durability, efficiency, performance, and passenger comfort.

A heat exchange and ventilation system integrated with a hollow core concrete floor having an air passage therethrough with an inlet and outlet for receiving air and permitting relative heat exchange therebetween; a raised floor supported by said hollow core concrete floor, defining a floor plenum between said hollow core concrete floor and said raised floor, said floor plenum communicating with said outlet so as to receive air from said air passage through said hollow core concrete floor; and adjustable terminal means carried by said raised floor for delivering a portion of said air from said floor plenum into a space above said floor. A method of conditioning air through a hollow core medium supporting a raised floor is also disclosed.

A mounting flange for attaching an HVAC air diffuser terminal in an opening in a floor or other mounting surface. The mounting flange includes a trim ring and a flange clip. The flange clip is adjustably and movably received in a slot defined a side of the trim ring. A pawl on the flange clip engages with ratchets defined in a surface of the trim ring adjacent to the slot to maintain the flange clip in selected position relative the underside of a floor. The air diffuser terminal is secured in the floor opening between gripping surfaces on the flange clip and the trim ring. An optional screw operably connects the flange clip with the trim ring so that the diffuser may be securely tightened in the floor opening.

An embodiment includes a first space, a second space, a first damper, a second damper, and a third damper. The first space is connected to a cold space, having cold air reside therein to send to the cold space. The second space has return air reside therein, as it is discharged from a hot space. The first damper has an opening adjusted under control of a controller to take in outdoor air to the first space, and is operable to have an open state in an emergency with a server being supplied with power. The second damper has an opening adjusted under control of the controller to discharge return air in the second space, outside thereof, and is operable to have an open state in the emergency. The third damper has an opening adjusted under control of the controller to recirculate return air in the second space to the first space.

An air guiding element (10) for an aircraft air conditioning system comprises a housing base body (12), in which an air inlet opening (14) and an air outlet opening (16) are constructed. A first flow control element (28) is arranged in the housing base body (12), relative to the direction of the air flow through the air guiding element (10), upstream of the air outlet opening (16). The first flow control element (28) comprises a plurality of air guiding channels (30) which are surrounded by a noise-absorbing material (32).