Abstract: Systems and methods are disclosed that relate to a wireless communication system. Theses systems and methods include providing information from a base station to a mobile device than enables the mobile device to use at least one DCI format. In some embodiments, this information is provided by receiving data over a wireless communication channel. The transmitted data comprises identification information that identifies the format of the transmitted data being transmitted. These systems and methods may also include identifying the format of the transmitted data and processing the transmitted data using the identified format of the transmitted data.

Abstract: A method for facilitating a data session in a communications environment is provided that includes receiving, at a first endpoint, a call that was initiated by a second endpoint. The first endpoint is already engaged in a previous call. The method further includes invoking a reverse eCamp-On™ feature in response to receiving the call from the second endpoint such that the first endpoint initiates a new call to the second endpoint once the previous call is completed.

Abstract: A medium access control (MAC) entity first computes an achievable rate region based on a total transmit power limit and a channel gain of each of a plurality of WTRUs. Next, the MAC entity selects an order of DPC among the WTRUs. A rate set for use in transmitting to the WTRUs is then selected, said rate set being within the computed achievable rate region. Then, based on the selected DPC order and rate set, a DPC entity performs DPC on a plurality of data streams intended for the plurality of WTRUs. If nested lattice-based DPC is utilized, rate compatibility is achieved by selecting proper nesting ratios corresponding to a desired data rate set. Otherwise, if binary-code based DPC is utilized, rate compatibility is achieved via selecting appropriate message input sizes for input to point-to-point coding units prior to performing DPC.

Abstract: A digital delaying device for delaying an input signal includes a ring oscillator, a calibration unit, and at least one delay number calculation unit and delay channel. The ring oscillator includes loop-connected delay cells for outputting an oscillation clock. The calibration unit receives a reference clock and the oscillation clock and calculates a pulse number of the oscillation clock corresponding to each reference clock period. The pulse number serves as a period reference pulse number. The calculation unit receives the pulse number and a signal delay value, calculates a signal delay number corresponding to the signal delay value according to the pulse number, and outputs a selection signal. The delay channel includes a multiplexer and cascaded delay cells, which receives an input signal and generates delay signals with different delay timings. The multiplexer selects and outputs one of the delay signals as an output signal according to the selection signal.

Abstract: An electronic commerce system includes one or more product databases that store product data for a plurality of products. The system includes a global content directory that includes a plurality of product classes organized in a hierarchy. Each product class categorizes a number of products and is associated with one or more attributes of the products categorized in the product class. At least one of the product classes has one or more associated pointers that identify one or more of the product databases. The system further includes a search interface that communicates a search query to the product databases to search for product data stored in the product databases identified by one of the pointers. The system also includes a traffic module operable to monitor the traffic levels associated with each product class and dynamically balance searches on the product databases based on the traffic levels.