Abstract: A method of managing Wi-Fi access points (APs) includes selecting between a global optimization and a local optimization of AP parameters based at least in part on one or more factors. The method includes causing a global optimization to be performed in the event that a global optimization is selected, the global optimization comprising: searching for adjustments to a first set of AP parameters that optimize an overall performance associated with a global region, the global region including a first set of APs. The method includes causing a local optimization to be performed in the event that a local optimization is selected, the local optimization comprising: searching for adjustments to a second set of AP parameters that optimize an overall performance associated with a localized region, the localized region including a second set of APs, wherein the second set of APs comprises a subset of the first set of APs.

Abstract: A collection of content objects and a representative content object may be stored in a k-dimensional tree. In one embodiment, a method includes receiving a content object; constructing a first k-dimensional tree in response to determining a second k-dimensional tree is storing information corresponding to a number of content objects that is equal to a number of nodes of the second k-dimensional tree; storing information corresponding to the received content object as a node in the first k-dimensional tree; and moving information corresponding to a stored content object from of each node of the second k-dimensional tree to a corresponding node of the first k-dimensional tree, wherein the corresponding node of the first k-dimensional tree is identified based at least in part on content of the content object.

Abstract: A method of configuring small cell base stations in a cellular network is disclosed. A constraint on a performance-related metric associated with at least a portion of the cellular network is received. In some embodiments, the constraint on the performance-related metric comprises a constraint on a performance-related metric associated with one or more macrocells. Measurement data from one or more small cell base stations is received via a control interface. One or more optimized values of one or more parameters associated with one or more small cell base stations are searched. The searching is based at least in part on the received measurement data and subject to the constraint on the performance-related metric associated with the at least a portion of the cellular network. The one or more optimized values of the one or more parameters to the associated small cell base stations are transmitted.

Abstract: In one embodiment, a method includes at time t2, determining a delta set of first objects representing a difference between a first set of first objects at time t1 and a second set of first objects at time t2; comparing the delta set of first objects with a set of second objects represented as a balanced k-dimensional tree; and identifying each second object whose content substantially matches content of at least one first object from the delta set of first objects.

Abstract: A base station selects a subset of at least one geographically separated antennas for each of the plurality of user equipments. The base station forms at least layer of data stream including modulated symbols, precedes the data stream via multiplication with the NT by preceding matrix where N is the number of said layers and NT is the number of transmit antenna elements and transmits the precoded layers of data stream to the user equipment via the selected geographically separated antennas. The base station signals the subset of the plurality of geographically separated antennas via higher layer Radio Resource Control or via, a down link grant mechanism. The base station optionally does not signal the subset of the plurality of geographically separated antennas to the corresponding mobile user equipment.

Abstract: A wireless transmission system included at least one user equipment and a base station. The base station is operable to form a downlink control information block, modulate the downlink control information, precode the modulated downlink control information, and transmit the precoded, modulated downlink control information on at least one demodulation reference signal antenna port to the at least one user equipment. The precoded, modulated downlink control information is mapped to a set of N1 physical resource block pairs in a subframe from an orthogonal frequency division multiplexing symbol T1 to and orthogonal frequency division multiplexing symbol T2.

Abstract: In an embodiment, a wireless communication system (100, FIG. 1) includes one or more nodes (102-108) and one or more user equipments (UE) (110). A node may apply (502, FIG. 5) a cell-specific spreading code to a cell identifier, which indicates an identity of a cell (113, FIG. 1) serviced by the node. The node may insert (504, FIG. 5), into a frame (200, FIG. 2), at least one synchronization channel symbol, which corresponds to the spread cell identifier, and the node may transmit (506, FIG. 5) the frame over an air interface. A UE may receive (702, FIG. 7) a frame from the air interface. The UE may despread (708) the spread cell identifier, and acquire (712) a cell identifier corresponding to a particular cell.

Abstract: A base station selects a subset of at least one geographically separated antennas for each of the plurality of user equipments. The base station forms at least layer of data stream including modulated symbols, precodes the data stream via multiplication with the NT-by-N precoding matrix where N is the number of said layers and NT is the number of transmit antenna elements and transmits the precoded layers of data stream to the user equipment via the selected geographically separated antennas. The base station signals the subset of the plurality of geographically separated antennas via higher layer Radio Resource Control or via a down link grant mechanism. The base station optionally does not signal the subset of the plurality of geographically separated antennas to the corresponding mobile user equipment.

Abstract: This invention sets conditions for user equipment responses to channel state indicator request in channel state information that may conflict.

Abstract: This invention sets conditions for user equipment responses to channel state indicator request in channel state information that may conflict.

Abstract: This invention includes signaling schemes for communicating the PDSCH muting configuration from the eNodeB to its UEs so that they can measure inter-cell CSI if configured. The base station transmits to each served user equipment a number signal indicating a number of allowed muting configurations, parameters for each allowed muting configuration and an enable/disable signal. Each served user equipment mutes or does not mute a physical downlink shared channel according to one of the allowed muting configurations and the state of a corresponding bit of the enable/disable signal.

Abstract: In one embodiment, a method includes at time t2, determining a delta set of first objects representing a difference between a first set of first objects at time t1 and a second set of first objects at time t2; comparing the delta set of first objects with a set of second objects represented as a balanced k-dimensional tree; and identifying each second object whose content substantially matches content of at least one first object from the delta set of first objects.

Abstract: In one embodiment, an object is stored in a k-dimensional forest that has a plurality of k-dimensional trees and each k-dimensional tree has a different size. If the smallest k-dimensional tree in the k-dimensional forest is not full, then the object is stored as a specific node in the smallest k-dimensional tree. Otherwise, a first k-dimensional tree in the k-dimensional forest is located, which is the smallest k-dimensional tree in the k-dimensional forest that is capable of storing the first object, objects in one or more second k-dimensional trees from the k-dimensional forest that are smaller than the first k-dimensional tree, and objects currently in the first k-dimensional tree. The object is stored as a specific node in the first k-dimensional tree. In addition, the objects in the second k-dimensional trees are moved and stored as specific nodes in the first k-dimensional tree.

Abstract: This invention is a method of wireless communication using candidate multi-cell CSI-RS time-frequency patterns in the invention. This invention avoids collision with antenna ports 0, 1, 2 and 3 used for transmitting cell-specific reference signals and port 5 used for transmitting demodulation reference signals. This invention satisfies the nested property requirement. This invention avoids collision with DM-RS signal for extended cyclic prefix transmission as long as DMRS Rank is less than or equal to 2. For ranks greater than 2, this invention produces patterns that may collide with Rel. 10 DM-RS for extended CP. The invention includes alternative patterns obtained by relabeling and/or reshuffling the CSI-RS antenna port numbers while preserving identical time-frequency resources assigned to CSI-RS in the time-frequency grid.

Abstract: A method of dynamically adjusting Wi-Fi parameters of a plurality of access points (APs) is disclosed. Reports from the plurality of APs are received through an interface. A conflict graph is created by a processor. Creating the conflict graph includes creating a plurality of vertices of the conflict graph, each vertex corresponding to one of the plurality of APs. Creating the conflict graph further includes determining that there is a conflict between at least some of the pairs of APs based at least in part on the received reports. Creating the conflict graph includes connecting an edge between each of the at least some of the pairs of APs. The conflict graph is stored in a memory.

Abstract: A method of detecting a hidden node is disclosed. Reports from a plurality of access points (APs) are received. The method includes determining that transmissions from a second AP are not detected by a first AP based on the received report from the first AP. The method includes determining that transmissions from a client associated with the first AP are detected by the second AP based on the received report from the second AP. The method further includes detecting that the second AP is a hidden node, wherein transmissions from the hidden node interfere with transmissions between the client and the first AP, and wherein the detection is based at least in part on the determination that transmissions from the second AP are not detected by the first AP and the determination that transmissions from the client associated with the first AP are detected by the second AP.

Abstract: A method of managing Wi-Fi access points (APs) includes selecting between a global optimization and a local optimization of AP parameters based at least in part on one or more factors. The method includes causing a global optimization to be performed in the event that a global optimization is selected, the global optimization comprising: searching for adjustments to a first set of AP parameters that optimize an overall performance associated with a global region, the global region including a first set of APs. The method includes causing a local optimization to be performed in the event that a local optimization is selected, the local optimization comprising: searching for adjustments to a second set of AP parameters that optimize an overall performance associated with a localized region, the localized region including a second set of APs, wherein the second set of APs comprises a subset of the first set of APs.

Abstract: This invention is a method of wireless communication between a base station and at least one user equipment. The base station signals a user equipment to produce a burst of a number of sounding reference signals having a predetermined burst duration. The user equipment sounds wireless channel to the base station via a burst of sounding reference signals having the predetermined burst duration. The base station schedules transmission of user equipment in time and frequency domain according to a CQI estimated from the received sounding reference signals.

Abstract: A method of configuring small cell base stations in a cellular network is disclosed. A constraint on a performance-related metric associated with at least a portion of the cellular network is received. In some embodiments, the constraint on the performance-related metric comprises a constraint on a performance-related metric associated with one or more macrocells. Measurement data from one or more small cell base stations is received via a control interface. One or more optimized values of one or more parameters associated with one or more small cell base stations are searched. The searching is based at least in part on the received measurement data and subject to the constraint on the performance-related metric associated with the at least a portion of the cellular network. The one or more optimized values of the one or more parameters to the associated small cell base stations are transmitted.

Abstract: A method of managing Wi-Fi access points using a Wi-Fi network manager is disclosed. Measurement data is received from a plurality of Wi-Fi access points via a control interface. Optimized adjustments to one or more Wi-Fi parameters associated with one or more of the plurality of access points are searched based at least in part on a set of network optimization goals and the measurement data received from the plurality of access points. At least some of the optimized adjustments to the one or more Wi-Fi parameters are transmitted to the one or more of the plurality of access points using the control interface.