Abstract: An access cover for an aircraft hole that comprises a plurality of access cover holes, an inner surface, a plurality of first projections protruding from the inner surface, and a plurality of fixing elements configured to fix the access cover to a supporting structure of the aircraft hole. The fixing elements each comprise a male fixing element having an outer threaded surface, the male fixing element being configured to pass through a hole, and a locking element comprising a threaded hole and an extended portion, wherein the outer threaded surface of the male fixing element is configured to thread with the threaded hole of the locking element.

Abstract: An access cover for an aircraft hole that comprises a plurality of access cover holes, an inner surface, a plurality of first projections protruding from the inner surface, and a plurality of fixing elements configured to fix the access cover to a supporting structure of the aircraft hole. The fixing elements each comprise a male fixing element having an outer threaded surface, the male fixing element being configured to pass through a hole, and a locking element comprising a threaded hole and an extended portion, wherein the outer threaded surface of the male fixing element is configured to thread with the threaded hole of the locking element.

Abstract: Pressure compensation device (100) deployed in an element that contains a flammable substance that compensates pressures between interior (101) of the element and exterior atmosphere (102) in which said element is deployed, by means of a continuous primary circulation (300) of air through primary channel (103) in said device (110) that communicates interior (100) and exterior (102) of the element, further comprising a secondary channel (104) integrated in the device (100) itself, communicating interior (102) and exterior (102) of the element, comprising said secondary channel (104) in the interior zone of the element a sheet (105) such that, in the event primary continuous circulation (300) of air through primary channel (103) is interrupted, said continuous circulation continues through secondary circulation (400) of air to interior (101) of the element, this secondary circulation (400) of air being capable of breaking sheet (105) of secondary channel (104).

Abstract: Aircraft component with panels (11) stiffened with stringers (15) configured with a central section (17) and some feet (19) in which there are zones of potential intersections or interferences of said stringers (15) with spars (25) and ribs (27), in which the configuration of the ends of the stringers (15) affected by said intersections or interferences includes a first section (41) in which the height of the central section (17) of the stringer (15) is reduced until it disappears and the width of the feet (19) is increased until it reaches a predetermined width A and a second section (43) with some extended feet (23) of said predetermined width A and no central section (17), including in said first section (41) the mechanical means (31) for binding the end of the stringer (15) to the skin (13). The invention also relates to a method for manufacturing said panels (11).

Abstract: Rib structure for a torsion box of an aircraft wing or a horizontal stabilizer. The structure comprises a center element which extends between the front spar and the rear spar of the torsion box, a series of vertical stiffening elements arranged between an upper skin and a lower skin of the torsion box. The vertical stiffening element consists of a first lateral wing which extends in the direction of said front spar and a second lateral wing which extends in the direction of said rear spar. These lateral extensions emerge from respective opposite sides of the vertical body and are attached side to side to the center element of the rib.

Abstract: An aircraft manhole including a skin panel of an aircraft structure, wherein an outer door and an inner door of the aircraft manhole are positioned on the skin panel. The aircraft manhole further includes stringers installed on the skin panel positioned on and attached to the skin, and fixing edges partially projecting through the manhole on the side for positioning the outer door and the inner door. The aircraft manhole also includes reinforcements arranged between the outer door and the inner door of the manhole that are attached to the skin, the reinforcements forming the fixing edges on one of its sides, and a cavity arranged in the skin to allow installing the outer door, thus maintaining the aerodynamic surface of the assembly as well as its tightness.

Abstract: Aircraft component with panels (11) stiffened with stringers (15) configured with a central section (17) and some feet (19) in which there are zones of potential intersections or interferences of said stringers (15) with spars (25) and ribs (27), in which the configuration of the ends of the stringers (15) affected by said intersections or interferences includes a first section (41) in which the height of the central section (17) of the stringer (15) is reduced until it disappears and the width of the feet (19) is increased until it reaches a predetermined width A and a second section (43) with some extended feet (23) of said predetermined width A and no central section (17), including in said first section (41) the mechanical means (31) for binding the end of the stringer (15) to the skin (13). The invention also relates to a method for manufacturing said panels (11).

Abstract: The present invention relates to an aircraft manhole comprising a skin panel (1) of the aircraft structure, an outer door (6) and an inner door (5) of the aircraft manhole being positioned on the mentioned skin panel (1), further comprising stringers (3) installed on the skin panel (1) positioned on and attached to the skin (1), fixing edges (8) partially projecting through the manhole on the side for positioning the outer door (6) and inner door (5), further comprising reinforcements (4) arranged between the outer door (6) and the inner door (5) of the manhole that are attached to the skin (1), said reinforcements (4) forming the fixing edges (8) on one of its sides, and a cavity (7) arranged in the skin (1) to allow installing the outer door (6), thus maintaining the aerodynamic surface of the assembly as well as its tightness.

Abstract: Rib structure for a torsion box of an aircraft wing or a horizontal stabiliser. The structure comprises a center element which extends between the front spar and the rear spar of the torsion box, a series of vertical stiffening elements arranged between an upper skin and a lower skin of the torsion box. The vertical stiffening element consists of a first lateral wing which extends in the direction of said front spar and a second lateral wing which extends in the direction of said rear spar. These lateral extensions emerge from respective opposite sides of the vertical body and are attached side to side to the center element of the rib.

Abstract: A user equipment (UE) configured for use in a wireless code division multiple access (CDMA) system with multi-user detection capabilities that implements congestion control includes a receiver having multi-user detection capabilities, an intra-cell interference measuring device, and an intra-cell interference signaling device. The intra-cell interference signaling device is configured to transmit signals indicative of intra-cell interference from which congestion control is based.

Abstract: A method for controlling behavior of lower layer links related to media independent handover (MIH) of a mobile user comprises sending a MIH link actions request primitive from a MIH User entity to a MIH function (MIHF) for requesting actions to be executed on a set of lower layer links to heterogeneous radio access technology (RAT) networks. The primitive includes parameters that indicate the requested actions and an execution time delay. Confirmation primitives are sent back the MIH User entity to convey the results of the execution attempts on the requested actions.

Abstract: In accordance with a preferred embodiment, the present invention comprises a method for using the remaining TxOP time by the peer node to forward traffic to a different destination, a method for using the remaining TxOP time by the original node to send traffic to a different destination, a method for using the remaining TxOP time by a neighbor to send traffic to the original node, a method for using the remaining TxOP time by a neighbor to send traffic to another node, a method to signal the reuse rules of the remaining TxOP time, and a method to efficiently relinquish/truncate a TxOP to reset the NAV for the neighborhood.

Abstract: High throughput channel operation in a mesh wireless local area network (WLAN) is disclosed. A mesh network comprises a plurality of mesh points and a network management entity (NME). The NME is configured to retrieve capability and configuration data from the mesh points. The NME configures at least one mesh point with respect to IEEE 802.11n channelization and legacy protection mode based on the capability and configuration data.

Abstract: In a wireless local area network (WLAN) mesh network of clusters, each cluster having a master node with a plurality of associated slave nodes, a method an apparatus for coordinating channel access between the clusters. A structure of clusters is established as a hierarchal mastership, wherein a high level master node serves a plurality of subservient master nodes. The hierarchal mastership is controlled by the high level master node using an HCF controlled channel access (HCCA) mechanism. Alternatively, the structure of clusters is configured as a peer-to-peer mastership that controls channel access by a distributed mechanism, such as EDCA.

Abstract: A method and apparatus for communicating slot allocations of nodes in a wireless mesh network that has data exchanges between the nodes occurring during slots. Each node maintains internal tracking of its slot allocation. A node may request a slot allocation of another node, and each node is enabled to report its slot allocation to other nodes. An information element (IE) and management type messages are introduced for tracking and reporting slot allocations among mesh network nodes.

Abstract: Several methods are provided for communicating emergency call capability information between a station and an access point (AP) in a wireless local area network. The methods include advertising by the AP of its emergency call capabilities and announcing by the station of its emergency call capabilities. The AP can advertise its emergency call capabilities in a beacon frame, a probe response frame, a reassociation response frame, or a reauthentication response frame. The station can announce its emergency call capabilities in an association request frame, a reassociation request frame, an authentication request frame, or a reauthentication request frame.

Abstract: In a wireless communication system comprising a plurality of mesh points (MPs), a method and apparatus for transmitting management information includes a first MP transmitting a management frame to a second MP, wherein the management frame includes the medium access control (MAC) address of a destination MP. The second MP receives the management frame from the first MP and determines if it is the destination MP. The second MP updates the management frame if the second MP determines it is not the destination MP, and transmits the management frame to a third MP. The transmissions terminate when the data reaches the destination MP.

Abstract: The present invention is related to a method and apparatus for transmitting concatenated frames in a wireless communication system comprising a plurality of mesh points (MPs). In one embodiment, a first MP transmits a data stream to a second MP, wherein the data stream is further transmitted to a third MP as a final destination. The second MP receives the data stream from the first MP. The second MP transmits a concatenated frame to the first and third MPs.

Abstract: A method for generating a media independent handover (MIH) trigger in a wireless local area network begins by sending a measurement report request message to a measurement entity in the network. The measurement entity takes the measurements and sends a measurement report response message to a medium access control (MAC) function. The MAC function evaluates the measurements and determines whether a handover condition exists, based on the measurements. The MAC function generates a MIH trigger if the handover condition exists.

Abstract: In a wireless communication system comprising a plurality of mesh points (MPs), a method for determining a level of involvement of MPs within the system includes a first MP transmitting a network status request signal to a second MP. The second MP responds to the first MP with network status information. The first MP receives the network status information from the second MP, and determines a level of involvement in the wireless system based on the network status information.