摘要:
A method of defining a gate structure for a MOSFET device featuring the employment of dual anti-reflective coating (ARC) layers to enhance gate structure resolution, and featuring a dry procedure for removal of all ARC layers avoiding the use of hot phosphoric acid, has been developed. After formation of a polysilicon layer on an underlying silicon dioxide gate insulator layer, a capping silicon oxide, a dielectric ARC layer, and an overlying organic ARC layer are deposited. A photoresist shape is formed and used as an etch mask to allow a first anisotropic RIE procedure to define the desired gate structure shape in the dual ARC layers and in the capping silicon oxide layer. After removal of the photoresist shape and the overlying organic ARC layer a second anisotropic RIE procedure is used to define a desired polysilicon gate structure, with the second anisotropic RIE procedure also resulting in the removal of the dielectric ARC shape. A final hydrofluoric acid type solution is then used to remove the capping silicon oxide shape as well as to remove the portions of the silicon dioxide gate insulator layer not covered by the polysilicon gate structure.
摘要:
A method of defining a patterned, conductive gate structure for a MOSFET device on a semiconductor substrate includes forming a conductive layer over the semiconductor substrate and forming a capping insulator layer over the conductive layer. An anti-reflective coating (ARC) layer is formed over the capping insulator layer and a patterned photoresist shape is formed on the ARC layer. A first etch procedure using the photoresist shape as an etch mask defines a stack comprised of an ARC shape and a capping insulator shape. A second etch procedure using the stack as an etch mask defines the patterned, conductive gate structure in the conductive layer.
摘要:
In a method for receiving control information, a transceiver decodes at least one set of decoding candidates, and then detects whether control information is present on the control channel based on the decoded at least one set of decoding candidates. In a method for transmitting control information, a transceiver selects a decoding candidate from a set of decoding candidates for transmitting control information on a control channel; and transmits to another transceiver, control information using at least one time-frequency control channel resource element corresponding to the selected decoding candidate.
摘要:
A method and a User Equipment (UE) for used in a Coordinated Multiple (CoMP) transmission are disclosed. The method for example comprises: acquiring a Channel State Information (CSI) feedback for each of at least one non-zero-power Channel State Information Reference Signal (CSI-RS) resource respectively, and providing, to a network side, at least one CSI feedback so as to facilitate a coordination of Downlink (DL) transmissions in the DL CoMP transmission at the network side. By doing so, a new Channel State Information (CSI) feedback reporting mode is introduced, so as to provide to a network side a plurality of CSI feedbacks based on which a better coordination of DL transmissions in the CoMP transmission can be achieved.
摘要:
The present invention provides a method for mitigating outages in wireless communication systems using feedback for control channels formed by aggregating groups of resource blocks or resource elements, the method. One embodiment of the method includes generating control channel feedback at user equipment. The control channel feedback is generated using one or more measurements performed on signals received at the user equipment over a downlink control channel at a current aggregation level. The method also includes transmitting the control channel feedback over an uplink channel and using this information for the optimal implementation of Cell range expansion by the network.
摘要:
In one embodiment, the method of configuring a common search space (CSS) for at least one user equipment (UE) in a wireless communication system with at least a first type of physical downlink control channel includes broadcasting at least one parameter of a common search space (CSS), none of the parameters being the number of orthogonal frequency-division multiplex (OFDM) symbols. In one embodiment, a method of configuring a default user equipment-specific search space (USS) for a user equipment (UE) in a wireless communication system with at least a first type of physical downlink control channel includes broadcasting at least one parameter of the default USS, none of the parameters being based on an identifier of the UE. The broadcasting may occur before UE-specific signaling. In one embodiment, a method of configuring or reconfiguring the USS may include transmitting at least one parameter of the USS with UE-specific signaling.
摘要:
Embodiments of the claimed subject matter provide a method and apparatus for virtual sectorization using an active antenna array. Embodiments of the apparatus include a transmitter for providing signals to an active antenna array. The signals cause the active antenna array to transmit a first reference signal to a first sector indicated to user equipment within the first sector by a sector identifier. The signals also cause the active antenna array to transmit a plurality of second reference signals into a corresponding plurality of second virtual sectors that overlap the first sector. The apparatus also includes a scheduler for scheduling transmission to user equipment based on feedback generated by the user equipment using the first reference signal or the second reference signals.
摘要:
The present invention provides a method and apparatus for providing acknowledgment feedback for aggregated downlink component carriers. One embodiment of the method includes determining acknowledgment bits for downlink component carriers that are aggregated to a particular user equipment. Each acknowledgment bit indicates whether a corresponding downlink component carrier was successfully received. This embodiment also includes transmitting symbol constellations representative of the acknowledgment bits in resources of one or more uplink control channels of the uplink component carrier.
摘要:
The present invention provides a method for transmitting and receiving random access channel messages in an extended range wireless communication system. One embodiment of the method may include accumulating, at a base station, signal energy received during a first portion of a transmission time interval. The method may also include accumulating, at the base station, signal energy received during a second portion of the transmission time interval. The first and second portions are offset from the start or end of the transmission time interval by selected delay intervals. The method may further include detecting the message(s) based on the signal energy accumulated during the first and second portions of the transmission time interval.
摘要:
A method is provided for controlling a wireless communications system. The method comprises communicating data to a first base station, and selecting a switchover time for ceasing communications with the first base station and beginning communications with a second base station. The switchover time is based on channel conditions associated with the communications to the first and second base stations, such as SIR.