Abstract:
The present invention provides a method and apparatus for multiplexing code division and frequency division transmissions. One embodiment of the method includes accessing at least one first symbol and at least one second symbol, encoding the at least one first symbol according to a frequency division protocol, and encoding the at least one second symbol using a coding sequence having a cyclic correlation properly. The method also includes transmitting a radiofrequency signal indicative of the at least one encoded first symbol and the at least one encoded second symbol.
Abstract:
Apparatus including a rigid fluid-permeable body, having a first non-planar fluid-permeable body surface, and having a second fluid-permeable body surface; a plurality of fluid-permeable cells in the fluid-permeable body; and a plurality of raised micro-scale features on the first fluid- permeable body surface. Apparatus including a fluid-permeable body having first and second fluid-permeable body surfaces; a plurality of fluid-permeable cells in the fluid-permeable body; a plurality of raised micro-scale features on the first fluid-permeable body surface; and a fluid containment body forming, together with the second fluid-permeable body surface, a second fluid containment structure. Methods, utilizing an apparatus, of treating a liquid with a fluid, and of maintaining a superhydrophobic surface.
Abstract:
Communication networks (100) and associated methods are disclosed that provide an advertisement or other type of informational message to a calling party (112) before providing ringback tones. A communication network (100) described herein receives a call from the calling party (112) to the called party (122), and temporarily interrupts call processing for the call. The communication network (100) then selects an advertisement for the call, and initiates delivery of the advertisement to the calling party (112). After the advertisement is delivered to the calling party (112), the communication network (100) resumes call processing for the call. In resuming call processing, the communication network (100) provides ringback tones to the calling party (112) and attempts to connect the call to the called party (122).
Abstract:
One example embodiment of the present invention discloses a method for processing an application packet for transmission, includes breaking the application packet into a plurality of segments, creating first pseudorandom bits, and generating partial tags based on each of the plurality of segments and portions of the first pseudorandom bits associated with each of the plurality of segments. The method further including combining the partial tags including a last partial tag associated with a last segment of the application packet to create an accumulated tag, generating an authentication tag based on the accumulated tag and second pseudorandom bits, storing the authentication tag, and transmitting the plurality of segments including the authentication tag.
Abstract:
Disclosed is a method for processing an application packet for transmission, compπsmg receiving a plurality of segments of the application packet in a byte stream, creating a plurality of superblocks within the byte stream by grouping a number of the plurality of blocks within the byte stream, creating first pseudorandom bits for the plurality of superblocks, determining a block number and a superblock number for a beginning and ending of each of the plurality of segments, generating a partial tag for each of the segments based on the first pseudorandom bits associated with the block numbers and superblock numbers between the determined beginning and ending of the of the plurality of segments in the byte stream, combining the partial tags to create an accumulated tag, generating an authentication tag based on the accumulated tag and second pseudorandom bits, storing the authentication tag, and transmitting the segments including the authentication tag.
Abstract:
Locating mobile stations used for wireless communications even when the mobile station is within a building includes determining whether at least one indicator associated with a signal used by the mobile station identifies a single, known building location. Example types of indicators include a base station and sector identifier of a base station sector dedicated to a particular building, a delay associated with a radio frequency signal used by the mobile station when communicating from a particular building location or a combination of cell codes reported by a mobile station when it is within a particular building location. One or more of such indicators provides an indication of a building location from which the mobile station has placed a call. That building location can then be used as the determined mobile station location.
Abstract:
A method is provided of determining the movement context of a mobile user terminal in a wireless telecommunications network by the steps of: determining a time at which transfer to a first cell occurs, determining a time at which transfer from said first cell first subsequently occurs, determining the difference between the two times, and assigning a movement context to the mobile user terminal, said context being dependent upon said difference.
Abstract:
Communication networks and associated methods are disclosed that provide third party charging for SIP sessions. A communication network (100) of the invention comprises a session control function (102) such as an IMS CSCF, a network node (104) such as an IMS application server, and a charging system (106). The session control function (102) serves a SIP session initiated between a first and second party. The network node (104) identifies a third party to charge for the session. The network node (104) includes a third party identifier for the third party in a SIP message for the session, and transmits the SIP message to the session control function (102). The session control function (102) generates a charging message, maps the third party identifier to the charging message, and transmits the charging message that includes the third party identifier to the charging system (106). The charging system (106) then initiates charging of the session to the third party based on the third party identifier.
Abstract:
A multiple-input, multiple-output (MEMO) communication system is configured to utilize a variable slot structure. The system includes multiple terminals and at least one base station configured to communicate with the terminals. The base station is operative to determine mobilities for respective ones of the terminals, to arrange the terminals into groups based on the determined mobilities, and to utilize at least first and second different slot structures for communicating with the terminals of at least respective first and second ones of the groups. The system may be, for example, a multi-user MIMO system in which the multiple terminals comprise autonomous single-antenna terminals.
Abstract:
The packet-forwarding for proxy mobile IP, in accordance with various embodiments, includes registering a mobile access terminal (AT) and a first IP gateway (IPGW) with a home agent (HA) when a wireless communication session is established between the mobile AT and the first IPGW. In various embodiments the method additionally includes transferring context information regarding the mobile AT and a proxy mobile security key obtained by the first IPGW, from the first IPGW to a second IPGW when the mobile AT moves from a first access network to a second access network.