摘要:
A method and an apparatus for transmitting a physical random access channel signal are disclosed by in the present invention. The method includes: when transmitting a physical random access channel (PRACH) signal, a terminal carries out pre-compensation for the frequency domain signal according to the estimated frequency spectrum gain of downlink channel, converting it into the time domain signal and transmits it to the base station. In the present invention, by way of measuring the spectral response of the downlink channel and carrying out pre-compensation for the frequency selective fading when transmitting the PRACH signal, using the symmetry of the uplink channel and downlink channel in the TD system, the adverse effect on the PRACH detection due to multipath channel could be effectively eliminated and the detection probability of the PRACH signal and measuring accuracy of transmission delay could be improved.
摘要:
A method and an apparatus for transmitting a physical random access channel signal are disclosed by in the present invention. The method includes: when transmitting a physical random access channel (PRACH) signal, a terminal carries out pre-compensation for the frequency domain signal according to the estimated frequency spectrum gain of downlink channel, converting it into the time domain signal and transmits it to the base station. In the present invention, by way of measuring the spectral response of the downlink channel and carrying out pre-compensation for the frequency selective fading when transmitting the PRACH signal, using the symmetry of the uplink channel and downlink channel in the TD system, the adverse effect on the PRACH detection due to multipath channel could be effectively eliminated and the detection probability of the PRACH signal and measuring accuracy of transmission delay could be improved.
摘要:
A social networking system server which includes a processor, wherein the processor utilizes computer readable program code to initiate, implement, and conclude, a travel plan. The computer readable program code comprising a series of computer readable program steps to effect coordinating a global, on-line social networking system (“SNS”). The computer readable program code further includes a series of computer readable program steps to effect initiating a travel plan for a first SNS member, purchasing goods on-line, implementing a tour plan, and concluding the tour plan.
摘要:
In photolithographic exposure, a feature (144) of an optical mask is projected onto a dark area (160). The light intensity inside the dark area is reduced by providing a non-printable clear cutout (410) inside the feature. The optical mask has the same optical pathlength outside the feature (144) adjacent to the entire outer boundary of the feature as at the cutout, the optical pathlength being measured along the optical mask's thickness.
摘要:
A pillar array is printed in positive photoresist using an optical mask (108) having an array of features (310) corresponding to the pillars. The pillars' width/length dimensions are below the exposure wavelength. Superior results can be achieved (less peeling off of the pillars and less overexposure at the center of each pillar) if the mask features (310) are downsized relative to the pillars' target sizes, and the exposure energy is reduced. Negative photoresist (with a dark field mask) can be used, and can provide good results (in terms of pillars peeling-off) if the combined area of the features (410) corresponding to the pillars is smaller than the area between the features (410).
摘要:
In photolithographic exposure, the illumination pattern (120R) formed on a photosensitive surface (106) is a reverse of the pattern (130) on the optical mask (124). The reverse pattern (120R) is obtained using off-axis illumination when the photosensitive surface is at other than the best focus position.
摘要:
In one embodiment, a method includes providing two structures with a spacing therebetween over a semiconductor substrate, providing a conformal first layer over the two structures and within the space therebetween, depositing a conformal protective layer over the first layer, planarizing the protective layer until a top surface of the first layer is exposed, and planarizing the first layer and the protective layer until a top surface of the two structures is exposed and a portion of the protective layer is between the two structures.
摘要:
The present invention includes compositions and methods for the controlled formation of nano and micropolymers in a single-step that includes a structural substrate, an oxidatively reactive monomer and an oxidant to form a polymer that takes the morphology of the structural substrate.
摘要:
A SAN management software program controls access to resources in the SAN by associating individual users with one or more administration domains. A user that is associated with an administration domain that includes a port of a SAN switch can configure or otherwise access the port but is restricted from accessing ports outside of that administration domain. Likewise, access to other sub-fabric resources can be restricted and allowed to individual users and users in specific roles or groups. In this manner, the SAN administrative user has very specific control over which users can access which SAN resources and what level of access these users are granted.
摘要:
The present invention is tele-diagnostics and patient triage method and system for the practices of traditional Chinese medicine (TCM) that acquire patient health condition info through 4 diagnostics process, provide pathogenesis analysis (disease cause, progression, projection), and treatment and prescription options remotely. This method and system established medical business modules with standard syntax through the implementation of medical decision support tools such as relational database, lookup tables, calculators, decision trees, manifestation reference charts, case comparison and statistics, and visualization in disease, pattern and syndrome identification, differentiation and determination. It essentially transform complex Chinese medicine practices into a networked, expert supported system with a knowledge base that deliver the needed information to assist a TCM physician to make medical decisions. Used in medical call centers and large general hospitals, this method and system help a plural of physicians quickly screen and diagnose a large number of patients and triage patients to different level of health care resources according to disease, condition and care needed for the patient. This system is to provide the method for TCM practitioner to treat patients of common disease with low risks that does not warrant a face to face diagnostics. This system also integrates with patient location based information to establish a quick referral system that connects call centers with clinics and hospitals nearby to provide face to face physician service and maintain continuity of care. A network of this system can alleviate the increasing pressure of resource shortage in rural and remote areas, particularly in developing countries.