摘要:
A method and system for eliminating interference caused by hidden nodes is disclosed. An initiator control message is defined for an initiator, (typically a wireless station (STA)), in order to begin an aggregate frame exchange with at least one responder. The initiator control message includes information on the queue sizes at the initiator. A responder, (typically an access point (AP)), sets up the required protection for the transmission of data by the initiator based on information on the queue sizes indicated in a field of the initiator control message using a responder control message. Other STAs that receive the responder control message set parameters for a wireless medium access accordingly. In another embodiment, multiple receiver aggregate multi-poll (MMP) and power save aggregation descriptor (PSAD) control frames are configured for transmission by a non-AP STA to provide enhanced scheduling and mitigate hidden node problems.
摘要:
Novel compositions comprise the polymeric reaction products of primary alkoxyalkylamines with epihalohydrins at temperatures in the range from about 40.degree. C. to about 150.degree. C. in the presence of an inorganic base. Such reaction products may be used as sedimentation and degradation inhibitors in hydrocarbon oils, antifoulants, carburetor detergents, lubricant additives, and corrosion inhibitors.
摘要:
Halogenated alkyl substituted phenols may be dealkylated by treating a compound such as 5-t-butyl-2-fluorophenol with a diealkylation catalyst such as an acid acting compound at dealkylation conditions whereby the t-butyl substituent is removed and the resulting compound comprising 2-fluorophenol is recovered.
摘要:
This application provides a method for treating a human subject afflicted with Parkinson's disease (PD) with a pharmaceutical composition comprising rasagiline or a pharmaceutically acceptable salt of rasagiline, and a pharmaceutically acceptable carrier, comprising the steps of: (i) obtaining a biological sample comprising a genome from the human subject afflicted with Parkinson's disease; (ii) assaying the DNA or RNA of the biological sample from the human subject using a probe or a primer, to determine the diploid genotype of the human subject at single nucleotide polymorphism (SNP) rs1076560 or rs2283265; (iii) identifying the human subject as a predicted responder to rasagiline if the diploid genotype is CC at rs1076560, CC at rs2283265, or CC at both rs1076560 and rs2283265; and (iv) administering the pharmaceutical composition comprising rasagiline and a pharmaceutically acceptable carrier to the human subject if the human subject is identified as a predicted responder to rasagiline.
摘要:
This invention provides a method for treating a human subject afflicted with multiple sclerosis or a single clinical attack consistent with multiple sclerosis with a pharmaceutical composition comprising glatiramer acetate and a pharmaceutically acceptable carrier, comprising the steps of 1) identifying whether the human subject is a predicted responder to glatiramer acetate by determining the genotype of the subject at one or more single nucleotide polymorphisms (SNPs) selected from the group consisting of the SNPs in Group 1; and 2) administering the pharmaceutical composition comprising glatiramer acetate and a pharmaceutically acceptable carrier to the subject only if the subject is identified as a predicted responder to glatiramer acetate.
摘要:
The present invention discloses a method and system for enabling efficient reduction of TFCs in the TFCS to achieve desired transmission, while remaining within desired power and data requirements. Upon the UE transmission power requirement exceeding the maximum or allowable transmission power the MAC shall be informed for subsequent TFC selection of all TFCs that currently exceed this limit. The UE will then chose the TFC with the next lower transmission power requirement and the sequence will continue until an acceptable TFC is determined. The present invention also enables the replacement of the TFCs in the TFCS and advanced determination of non-supported TFCS. The TFCs that require transmission power greater then the maximum or allowed UE transmission power shall be determined continuously in every TTI, not just in TTIs where the maximum power has been exceeded.
摘要:
A method and system applies MAC transmission opportunity (TXOP) protection for multiple mode operation in a WLAN system. In particular, MAC mechanisms are defined to support multiple mode CTS frames, and multiple mode CF-End frames sent by the AP, each in a format appropriate for the corresponding mode which also applies to a single mode as a trivial case. MAC mechanisms permit truncation of TXOP duration for releasing the unused portion of the TXOP when no further data for transmission is available. Release of unused protected TXOP is possible for both protected AP transmissions and STA transmissions.
摘要:
A virtual beam system operating in an environment, including a non-compatible receiver, includes a transmitting subsystem and a receiving subsystem. The transmitting subsystem includes an array of transmitting elements and an element position encoded composite signal generator for generating an element position encoded composite signal. The array of transmitting elements is operatively coupled to the signal generator. The transmitting subsystem radiates the element position encoded composite signal via the array of transmitting elements. The receiving subsystem is responsive to the element position encoded composite signal and includes a receiving element and an element position encoded composite signal decoder for decoding the element position encoded composite signal. The receiving element is operatively coupled to the signal decoder. The element position encoded composite signal appears to be radiated as a wide beam, with relatively low directive gain, when received and decoded by the non-compatible receiver. Conversely, the element position encoded composite signal appears to be radiated as a narrow beam, with relatively high directive gain, when received by the receiving element and decoded by the signal decoder of the receiving subsystem.
摘要:
A method of reducing the activity of a cell comprises administering to the cell of a subject in need thereof, directly or systemically, a cell activity-reducing effective amount of lycopene. Pharmaceutical composition are derscribed, for inhibiting the growth of cancer cells, comprising as an active ingredient a cancer cell growth-inhibiting effective amount of lycopene.
摘要:
An additive for inhibiting sedimentation and retarding degradation of hydrocarbon oils as evidenced by discoloration comprises the reaction product of an alkoxyalkylamine with an epihalohydrin at a temperature from about 40.degree. C. to about 150.degree. C. in the presence of an inorganic base.