Patent application number | Description | Published |
20090080384 | INTERFERENCE MITIGATION IN A WIRELESS COMMUNICATION SYSTEM - Techniques for mitigating interference on the reverse link in a wireless communication system are described. Terminals interfering with one another and communicating with different sectors on the reverse link may be identified. The terminals may be scheduled in time intervals selected to mitigate interference. For example, each terminal may be scheduled on at least one pseudo-randomly selected time interval, on a pseudo-randomly selected interlace that includes evenly spaced time intervals, on a different set of at least one time interval, on a different interlace, etc. A terminal may receive an assignment of at least one time interval for transmission on the reverse link to a serving sector. The at least one time interval may be selected to mitigate interference to terminals in neighbor sectors. | 03-26-2009 |
20100080279 | METHOD AND APPARATUS FOR REDUCING INTERFERENCE OF A SIGNAL OVER A PLURALITY OF STAGES - An apparatus for reducing interference of a signal over a plurality of stages includes a processor configured to determine at least two equalizer taps based on at least one of a covariance and a channel impulse response of the signal. The processor is further configured to estimate at least one additional equalizer tap based on the at least two equalizer taps. In addition, the processor is configured to reduce, for each of the plurality of stages, the interference of the signal for that stage using an equalizer tap from either the at least two equalizer taps or the at least one additional equalizer tap, so that the signal for the next stage in the plurality of stages has the reduced interference. A method is also provided for reducing interference of a signal over a plurality of stages. | 04-01-2010 |
20100094868 | DETECTION OF UNDESIRABLE WEB PAGES - A system for detecting artificial promotion of a resource, including a search engine operative to index a set incoming links (“inlinks”) which reference the resource, a log module coupled with the search engine and configured to store log data associated with the set of inlinks, a partitioning module coupled with log module and operative to partition the set of inlinks into a plurality of groups of inlinks based on at least one partitioning scheme, a statistics module coupled with the partitioning module and operative to compute a statistic associated with the inlinks within each of the plurality of groups of inlinks, and a computation module coupled with the statistics module and operative to process the computed statistic associated with the inlinks of each of the plurality of groups of inlinks and compute a metric associated with set of inlinks where the metric indicates a level of uniformity of a distribution of values of the respective computed statistics among the plurality of groups of inlinks, and where the search engine places a list of search results, generated in response to a search query, in a pattern based on the metric. | 04-15-2010 |
20110093459 | Incorporating Recency in Network Search Using Machine Learning - In one embodiment, access a set of recency ranking data comprising one or more recency search queries and one or more recency search results, each of the recency search queries being recency-sensitive with respect to a particular time period and being associated with a query timestamp representing the time at which the recency search query is received at a search engine, each of the recency search results being generated by the search engine for one of the recency search queries and comprising one or more recency network resources. Construct a plurality of recency features from the set of recency ranking data. Train a first ranking model via machine learning using at least the recency features. | 04-21-2011 |
20120158740 | CACHING WEB DOCUMENTS IN TWO OR MORE CACHES - A system and method is described herein that cache web documents in two or more caches in an optimized manner. The web documents result from a plurality of queries presented to a web search engine. Each web document has a tier score indicating a position of the web document in the caches. The tier scores are modified in a manner that rearranges the web documents in caches. This rearrangement of the web documents in the caches can advantageously improve the retrieval time for the web documents. | 06-21-2012 |
Patent application number | Description | Published |
20100166179 | METHODS AND APPARATUS FOR BOOTSTRAPPING MOBILE-FOREIGN AND FOREIGN-HOME AUTHENTICATION KEYS IN MOBILE IP - Methods and apparatus for dynamically generating authentication keys are disclosed. Specifically, a Mobile-Foreign authentication key is separately generated by both the Mobile Node and Foreign Agent. Similarly, a Foreign-Home authentication key is separately generated by the Foreign Agent and the Home Agent. In accordance with one embodiment, generation of the Mobile-Foreign authentication key and Foreign-Home authentication key are accomplished via the Diffie-Hellman key generation scheme. | 07-01-2010 |
20110026488 | METHODS AND APPARATUS FOR ACHIEVING ROUTE OPTIMIZATION AND LOCATION PRIVACY IN AN IPV6 NETWORK - Methods and apparatus for performing proxy registration on behalf of a node with a Home Agent supporting Mobile IP are disclosed. A first registration request is composed on behalf of the node and transmitted to the Home Agent via a first Local Mobility Anchor, wherein the first Local Mobility Anchor is a regional controller via which registration is performed when the node moves within a region associated with the first Local Mobility Anchor. When the node moves within a region or between regions, the node is re-registered. Specifically, a second registration request is composed and transmitted to the first Local Mobility Anchor when the node moves within the region associated with the first Local Mobility Anchor. When the node moves into a second region associated with a second Local Mobility Anchor and outside the first region associated with the first Local Mobility Anchor, a second registration request is composed and transmitted to the Home Agent via the second Local Mobility Anchor, wherein the second Local Mobility Anchor is a regional controller via which registration is performed when the node moves within a region associated with second first Local Mobility Anchor. | 02-03-2011 |
20140169351 | MOBILE NETWORK OPERATOR MULTIHOMING AND ENTERPRISE VPN SOLUTION - The disclosed embodiments support mobility internal and external to enterprise networks. Service providers provide mobility by providing Home Agent functionality corresponding to each Enterprise network. In this manner, mobility may be provided to Mobile Nodes both internal and external to their enterprise networks. Moreover, data packets may be transmitted by Mobile Nodes to Correspondent Nodes, whether they are within their enterprise network, the Service Provider network, or the Internet. | 06-19-2014 |