Abstract: An advanced coating for showerhead used in plasma processing chamber is provided. The advanced coating is formed using plasma enhanced physical vapor deposition. The coating formation involved a physical process, such as condensation of source material on the showerhead surface, and chemical process, wherein active species from plasma interact with the condensed source materials. Also, non-reactive species from the plasma impinge on the bottom surface to condense the formed coating.

Abstract: An advanced coating for parts used in plasma processing chamber. The advanced coating is formed over an anodized surface that has not been sealed. After the coating is formed, the coated area is masked, and the remaining anodized surface is sealed. The porous and rough structure of the anodized but un-sealed aluminum enhances adhesion of the coating. However, to prevent particle generation, the exposed anodized surface is sealed after formation of the coating. The coating can be of yttria, formed by plasma enhanced atomic deposition techniques which results in a dense and smooth coating.

Abstract: The present invention discloses a method including: obtaining downtilt coordination information of a local cell and downtilt coordination information of a neighbor cell; and setting, according to the downtilt coordination information of the local cell and the downtilt coordination information of the neighbor cell, a downtilt of a time-frequency resource block on an antenna of the local cell with respect to a to-be-coordinated user equipment. The downtilt coordination information of the local cell and that of the neighbor cell are referenced to for setting the downtilt of the time-frequency resource block on the antenna of the local cell with respect to the to-be-coordinated user equipment, which avoids interference on user equipments within a service range of the neighbor cell while ensuring signal received power and SINR experience for user equipments within a service range of the local cell.

Abstract: Embodiments of the present invention provide a method and user equipment for feeding back multi-cell channel state information. The method for feeding back multi-cell channel state information includes: feeding back channel state information of a serving cell of a user equipment to a network device; exchanging long-term wideband space state information of a neighboring cell of the user equipment with the network device; feeding back inter-cell additional information of the neighboring cell to the network device, where the inter-cell additional information of the neighboring cell includes a code word that optimizes joint channel information, and the joint channel information is generated according to the channel state information of the serving cell, the long-term wideband space state information of the neighboring cell, and the inter-cell additional information of the neighboring cell.

Abstract: Patterned substrates templates are provided, as well as methods comprising a combination of lithography and self-assembly techniques. The patterned substrates may comprise first and second patterns.

Abstract: The disclosure relates generally to a method for fabricating a patterned medium. The method includes providing a substrate with an exterior layer under a lithographically patterned surface layer, the lithographically patterned surface layer comprising a first pattern in a first region and a second pattern in a second region, applying a first masking material over the first region, transferring the second pattern into the exterior layer in the second region, forming self-assembled block copolymer structures over the lithographically patterned surface layer, the self-assembled block copolymer structures aligning with the first pattern in the first region, applying a second masking material over the second region, transferring the polymer block pattern into the exterior layer in the first region, and etching the substrate according to the second pattern transferred to the exterior layer in the second region and the polymer block pattern transferred to the exterior layer in the first region.

Abstract: In a method of improved channel-dependent time- and frequency-domain scheduling in an OFDM based telecommunication system with multiple user terminals, determining SO a parameter value representative of the system load; pre-selecting SI a subset of user terminals if the determined parameter value is larger than or equal to a predetermined threshold; and performing S2 frequency-domain scheduling of the pre-selected subset, to reduce the downlink signaling overhead and enabling improved efficiency of the channel-dependent time- and frequency-domain scheduling.

Abstract: Embodiments of the present invention provide a method and an apparatus for performing channel measurement for a cell. The method includes: sending information about a location of a to-be-measured reference signal to a user equipment, where the location of the to-be-measured reference signal is a part of a location occupied by a reference signal of the cell; and receiving a channel measurement report of the cell. The channel measurement report is sent by the user equipment and is obtained after the user equipment performs channel measurement for the cell according to the information about the location of the to-be-measured reference signal.

Abstract: The present invention provides a method includes: receiving a downlink channel quality indicator or an interference indicator, where the downlink channel quality indicator or the interference indicator is fed back by a UE; estimating a weak interference noise matrix of the UE according to the downlink channel quality indicator or the interference indicator, where the downlink channel quality indicator or the interference indicator is fed back by the UE; obtaining a time-frequency channel matrix of a serving cell and a time-frequency strong interference matrix of a strong interfering cell, and obtaining a time-frequency interference noise matrix of the UE according to the estimated weak interference noise matrix and the time-frequency strong interference matrix; and estimate downlink channel quality according to the time-frequency channel matrix and the time-frequency interference noise matrix.

Abstract: To facilitate sending a reference signal in a wireless communication environment, a transmitter sends a reference signal in a first time-frequency resource to a user equipment (UE); the transmitter sends data information in a first portion of a second time-frequency resource different from the first time-frequency resource to the UE; and the transmitter excludes data information from being sent in a second portion of the second time-frequency resource. The second portion of the second time-frequency resource is designated for use by another transmitter for sending another reference signal to the UE.

Abstract: A communication method in a receiving node in a wireless communication system includes receiving, at a receiving node, a first coded message block that includes a plurality of parts distributed over a plurality of components. The method further includes detecting a decoding error associated with decoding the received first coded message block and, in response to detecting the decoding error, identifying a part of the first coded message block for which retransmission will be requested and a suggested retransmission setting. The suggested retransmission setting includes one or more of a component selection setting, a link adaptation setting, a power control setting, and a scheduling setting. The method also includes feeding back to the sending node feedback information indicating that the first coded message block could not be correctly decoded. The feedback information indicates the identified part of the first coded message block and the suggested retransmission settings.

Abstract: A method, an apparatus and a system for estimating channels are disclosed. A method for estimating channels includes: receiving, by a User Equipment (UE), downlink signals sent by two or more Access Points (APs), wherein no common reference signal is comprised in any data channel symbol domain except a preset symbol domain in the downlink signals; and performing, by the UE, channel estimation according to the downlink signals. The technical solution disclosed herein eliminates the interference between the reference signal and the data signal, enables the UE to estimate the channel value between the UE and the cooperative APs accurately, and improves the UE performance.

Abstract: Resources in a multi-cellular wireless communication system are scheduled. A beam pattern associated with at least one mobile terminal located within one of the cells is identified and assigned to a slot, providing at least one stream to said at least one mobile terminal. At least one other mobile terminal located within said cell having the same beam pattern associated therewith as that of said identified beam pattern to be served during said slot is scheduled. The assigned beam pattern in said cell is communicated to at least one interfering cell.

Abstract: The invention relates to control of link resources in a wireless telecommunications system, in which instant channel feedback information is transmitted from a mobile terminal in response to receipt of a selection message from a basestation, and the instant channel feedback information is used for real-time resource allocation and adaptation at the basestation.

Abstract: When transmitting data from a transmission unit to a reception unit over a channel in a wireless communication system, it has been observed that there are inherent losses in throughput, especially for a channel experiencing high channel quality variations over its frequency range. To improve the throughput over such a channel, it is proposed to: estimate the quality of each subchannel of a channel. classify the subchannels into a number of quality groups based on the estimated quality, and select a code rate per quality group. This selected code rate per quality group is then used when a data word to be transmitted is coded. Simulations have shown that by grouping the subchannels into a limited number of groups, for example one to four groups depending on the channel quality variation, a high throughput could be achieved with a minimum of signaling cost in the form of extra overhead.

Abstract: The present invention relates to a method for generating a reference signal, including: obtaining first control information, where the first control information indicates or includes cyclic shift related information which is used by a terminal belonging to a serving cell to send a reference signal; and sending the first control information to the terminal belonging to the serving cell, so that the terminal belonging to the serving cell generates the reference signal according to the cyclic shift related information which is indicated or included by the first control information and used by the terminal to send the reference signal, where a variation rule of a cyclic shift which the terminal belonging to the serving cell uses to generate the reference signal is the same as that of a cyclic shift which a terminal belonging to a coordinated cell uses to generate the reference signal.

Abstract: In a method of enabling synchronization for a channel in an OFDM based telecommunication system initially providing a symbol for transmission and selecting at least two carrier frequencies, subsequently determining a respective weighting parameter for the selected frequencies and finally transmitting the symbol on all selected frequencies based on the weighting parameters.

Abstract: Embodiments of the present invention provide a method and user equipment for feeding back multi-cell channel state information. The method for feeding back multi-cell channel state information includes: feeding back channel state information of a serving cell of a user equipment to a network device; exchanging long-term wideband space state information of a neighboring cell of the user equipment with the network device; feeding back inter-cell additional information of the neighboring cell to the network device, where the inter-cell additional information of the neighboring cell includes a code word that optimizes joint channel information, and the joint channel information is generated according to the channel state information of the serving cell, the long-term wideband space state information of the neighboring cell, and the inter-cell additional information of the neighboring cell.

Abstract: A communication method in a receiving node in a wireless communication system includes receiving, at a receiving node, a first coded message block that includes a plurality of parts distributed over a plurality of components. The method further includes detecting a decoding error associated with decoding the received first coded message block and, in response to detecting the decoding error, identifying a part of the first coded message block for which retransmission will be requested and a suggested retransmission setting. The suggested retransmission setting includes one or more of a component selection setting, a link adaptation setting, a power control setting, and a scheduling setting. The method also includes feeding back to the sending node feedback information indicating that the first coded message block could not be correctly decoded. The feedback information indicates the identified part of the first coded message block and the suggested retransmission settings.

Abstract: A method in a receiving node for sending an acknowledgement/not acknowledgement “ACK/NACK” feedback report of received data units over a radio link is provided. When the receiving node have received (301) data units in a number of subframes over a first radio link from a sending node, it creates (302) an ACK/NACK feedback report. The report is compressed such that it comprises one single ACK/NACK feedback relating to the data units in the number of received subframes, and the report comprises an indicator indicating said number of received subframes. The sending node then transmits (303) the created ACK/NACK feedback report to the sending node over a second radio link. The feedback report renders it feasible for the sending node to decide whether a retransmission of any subframe is required or not based on a comparison of the reported number of received subframes with the known transmitted number of subframes per frame, together with the compressed ACK/NACK feedback report.