Abstract: The present invention provides a method involving a media server, a wireless access network, at least one media client, and a proxy server. The method includes accessing, at the proxy server, at least one message including information indicating impending establishment of a media session between the media server and said at least one media client. The method also includes providing, from the proxy server, information indicating the impending establishment of the media session and a request to receive feedback associated with the media session. The method further includes receiving, at the proxy server, feedback associated with the media session in response to providing the request to receive feedback associated with the media session.

Abstract: The invention includes a method and apparatus for determining network growth information for a radio access network (RAN) and a wired network supporting communications of the RAN (denoted as a core network). The method includes obtaining RAN configuration information including RAN component configuration information and RAN component connectivity information, obtaining actual traffic information and forecast traffic information for the RAN, and determining RAN growth information by correlating the actual traffic information and the forecast traffic information with the RAN configuration information, the RAN growth information indicating whether at least one additional RAN component is necessary to support the actual and forecast traffic. The method may further include determining network growth information associated with the core network using core network configuration information and at least a portion of the RAN growth information.

Abstract: The present invention relates to a queue management unit and method for streaming video packets in a wireless network. The method includes determining a type of frame from a header of a video packet received at a transmit buffer. The method further includes discarding the received frame if the received frame is dependent upon any previously discarded frame, otherwise storing the received frame in one of a plurality of sub-queues of the transmit buffer according to the type of frame, where each sub-queue of the plurality of sub-queues stores frames corresponding to one type of frame. Also, the method includes creating space in the transmit buffer if there is insufficient space for a higher priority frame by discarding lower priority frames, as well as discarding frames in the transmit if the received frame is delayed more than a maximum period of time.

Abstract: The ability to maintain communications between wireless nodes (e.g., devices), moving substantially as a group, as the group moves from one domain to another is provided without the need for each member of the group to separately obtain domain access rights.

Abstract: Example embodiments are directed to methods of reducing interference in a communication system. A method includes receiving, by a transmitter, first and second quantized matrices from a mobile station. The first and second quantized matrices are based on an estimated channel matrix and an estimated interference matrix. The method further includes determining, by the transmitter, a transmission beamforming vector based on the first and second quantized values.

Abstract: In a method for dynamically setting a content rate of a multimedia session for a client in a network, a proxy server receives a channel condition feedback message from a network controller and determines whether a receiver report message has been received from the client since a most recent previous channel condition feedback message. The channel condition feedback message includes current channel condition information for the network. The proxy server sends one of an extended feedback report message and a short feedback report message to a media server based on the determining step. The short feedback report message includes at least a maximum transmission rate parameter for the multimedia session. The extended feedback report message includes at least information contained in the receiver report message. The extended feedback report message may, in addition, include the maximum transmission rate parameter for the multimedia session.

Abstract: Example embodiments are directed to methods of reducing interference in a communication system. In at least one example embodiment, a method includes first determining, by a first transmitter having a multi-directional antenna configured to produce a plurality of beams, at least one interference level of at least one interfering beam of a plurality of beams of at least one transmitter in the communication system, second determining a transmitting beam pattern based on the interference level, the transmitting beam pattern indicating a sequence of illuminating the plurality of beams at corresponding time slots, third determining a fractional frequency reuse pattern based on the transmitting beam pattern, and transmitting data based on the transmitting beam pattern and the frequency reuse pattern.

Abstract: In one embodiment, the method includes throttling, at the network element, a data rate of data traffic sent by the network element based on a quality of service for at least one voice call handled by the network element.

Abstract: A method and apparatus for preserving the video quality of encoded video signals when transmitted over a communications network. The video signals may comprise Motion Picture Experts Group (MPEG) encoded video signals and the communications network may comprise a WiMAX or an LTE network. Illustratively, an MPEG encoded video signal is decomposed into three component video streams made up of I-frames, P-frames and B-frames, respectively. The three video streams may then be independently transmitted as separate and independent flows with different Quality of Service (QoS) levels. For example, the video stream comprising I-frames may be assigned a highest QoS level, while the video stream comprising B-frames may be assigned a lowest QoS level (with the video stream comprising P-frames assigned a QoS level therebetween). A receiver at the receiving end receives the independently transmitted video streams and combines them together to reproduce the encoded video signal.

Abstract: A neighbor list of potential hand-off base stations is varied to control call blocking and dropping rates. The list may be varied in accordance with real-time traffic flow criteria.

Abstract: The present invention provides a novel framing structure that can be used to smoothly evolve a Time Division Duplex (TDD) wireless communications technology to a Frequency Division Duplex wireless communications technology. A method for establishing the start time of an uplink frame that is offset in relation to a downlink frame by an allocation start time is provided. In addition, methods of allocating downlink and uplink resources for half-duplex and full frequency division duplex operation with adequate provisions for transmit-receive and receive-transmit time gaps are also provided.

Abstract: Methods for proxy-driven content rate selection for streaming media servers are provided. In one method, one or more maximum transmission rate parameters from a network controller are stored at a proxy server in response to a receiver report message from the client. A target rate for the media session is generated based on the stored maximum transmission rate parameters, and the target rate is transmitted to a media server in a proxy-to-server feedback message. The media server selects the content rate from among a plurality of supported content rates in response to the proxy-to-server feedback message from the proxy server, and streams streaming multimedia frames to the client at the selected content rate.

Abstract: In a method for dynamically setting a content rate of a multimedia session for a client in a network, a proxy server receives a channel condition feedback message from a network controller and determines whether a receiver report message has been received from the client since a most recent previous channel condition feedback message. The channel condition feedback message includes current channel condition information for the network. The proxy server sends one of an extended feedback report message and a short feedback report message to a media server based on the determining step. The short feedback report message includes at least a maximum transmission rate parameter for the multimedia session. The extended feedback report message includes at least information contained in the receiver report message. The extended feedback report message may, in addition, include the maximum transmission rate parameter for the multimedia session.

Abstract: The present invention provides a method involving a media server, a wireless network, and at least one media client associated with at least one air interface with the wireless network. The method includes accessing first information indicative of at least one state of the at least one media client. The first information is provided by the at least one media client. The method also includes accessing second information indicative of resources associated with the at least one air interface. The second information is provided by the wireless network. The method further includes providing at least one feedback parameter to the media server. The at least one feedback parameter is formed based on the first and second information.

Abstract: The present invention provides a method involving a media server, a wireless access network, at least one media client, and a proxy server. The method includes accessing, at the proxy server, at least one message including information indicating impending establishment of a media session between the media server and said at least one media client. The method also includes providing, from the proxy server, information indicating the impending establishment of the media session and a request to receive feedback associated with the media session. The method further includes receiving, at the proxy server, feedback associated with the media session in response to providing the request to receive feedback associated with the media session.

Abstract: The present invention provides a method for content rate selection. The method includes selecting a content rate for play out of at least one frame transmitted from a media server to a media client via a wireless access network. Selection of the content rate is performed based on a statistical representation of a bandwidth available for transmission of frames.

Abstract: The invention includes a method and apparatus for determining network growth information for a radio access network (RAN) and a wired network supporting communications of the RAN (denoted as a core network). The method includes obtaining RAN configuration information including RAN component configuration information and RAN component connectivity information, obtaining actual traffic information and forecast traffic information for the RAN, and determining RAN growth information by correlating the actual traffic information and the forecast traffic information with the RAN configuration information, the RAN growth information indicating whether at least one additional RAN component is necessary to support the actual and forecast traffic. The method may further include determining network growth information associated with the core network using core network configuration information and at least a portion of the RAN growth information.

Abstract: The present invention provides a method for allocating portions of a frame to a plurality of mobile units including a plurality of frequency subcarrier sets and a plurality of symbols. The method includes determining at least one zone comprising at least one of the plurality of subcarrier sets and at least one of the plurality of symbols and determining a plurality of subzones. Each subzone includes at least one of the plurality of subcarrier sets and at least one of the plurality of symbols in the at least one zone. The method also includes associating each of the plurality of mobile units with at least one of the subzones and allocating a portion of the subcarrier sets and symbols in each subzone to the mobile units associated with each subzone.

Abstract: A method and apparatus for increasing the accuracy and reliability of geolocation estimates for wireless communication networks devices includes calculating a geolocation estimate of a wireless communication device for a plurality of time periods, and selecting from the plurality of calculated geolocation estimates, a most reliable geolocation estimate of the wireless communication device.

Abstract: An adaptive pulse position modulated CDMA scheme for use in UWB communications systems is disclosed. A stream of input bits is encoded with spreading code sequence. The spreading code sequence consists of a number of code elements that may have one of two values. Each bit is encoded into a symbol consisting of a predefined number of chips, which are transmitted during a symbol period. Next, at least one code element is associated with each chip in the symbol. Then, an encoded pulse is generated in each chip. Each encoded pulse has a value determined by multiplying the data bit with the code value associated with the particular chip. The encoded pulse is then pulse position modulated by shifting the position of the pulse to a first position or a second position within the chip depending upon the encoded value of the pulse.