Patent application number | Description | Published |
20080214182 | POWER CONTROL AND CHANNEL REUSE TECHNIQUES FOR WIRELESS RELAY NETWORKS - Various example embodiments are disclosed relating to relay networks or multi-hop networks, and also relating to power control and channel reuse techniques for wireless relay networks. A technique of power control in a wireless relay network may include receiving a channel measurement report via a relay station from a mobile station attached to the relay station, and determining a mobile station-specific downlink data transmission power level for the relay station to transmit data to the mobile station based at least in part on the received channel measurement report from the mobile station. | 09-04-2008 |
20080219275 | Apparatus, method and computer program product providing neighbor discovery, handover procedure and relay zone configuration for relay stations in a multi-hop network - Methods for use in multi-hop relay networks are described. One method includes receiving a first message from a first relay station requesting a temporary suspension of communication between the first relay station and one or more user equipment. In response to receiving the first message, a second message is transmitted to the one or more user equipment. The second message includes instructions to the user equipment to temporarily suspend communication with the first relay station at a specific time. A third message is transmitted to the first relay station. A scanning operation is performed at the specified time in response to receiving the third message. A second method for use in multi-hop relay networks is also described. The second method includes transmitting a neighbor information message. The neighbor information message includes a relay zone offset indicating the start of a station in a frame structure. Several apparatus are also described. | 09-11-2008 |
20090264141 | Robust Location Detection Based on Identifying Codes - Positioning beacons ( | 10-22-2009 |
20100061311 | Opportunistic Uplink Feedback Scheme for MU-MIMO Systems - According to one general aspect, a method of using a base station comprising establishing an association between the base station and at least one mobile station (MS) via a communications channel. In such an embodiment, the communications channel may be divided into resource blocks. In various embodiments, the method may include broadcasting a signal-to-noise (SNR) threshold message that includes a SNR threshold. In some embodiments, the method may include receiving at least one reporting message, respectively from the at least one mobile station(s), indicating which resource blocks measured a SNR equal to or above the SNR threshold. In various embodiments, the method may also include allocating, in a time division multiplexing mode, resource blocks for communication with the mobile station(s) based, at least in part, upon the reporting message(s). | 03-11-2010 |
20100061346 | CHANNEL QUALITY FEEDBACK SIGNAL FOR WIRELESS NETWORKS - According to an example embodiment, a method may include broadcasting, in a downlink direction to one or more mobile stations in a wireless network, a message that includes a channel quality threshold, and receiving a signal from at least one of the one or more mobile stations, the signal being received in an uplink direction on one or more resource blocks that have a channel quality, as measured by one of the one or more mobile station in a downlink direction, that is greater than or equal to the channel quality threshold. | 03-11-2010 |
20100093384 | GUARD BAND UTILIZATION IN MULTI-CARRIER MODE FOR WIRELESS NETWORKS - Various example embodiments are disclosed herein. According to an example embodiment, an apparatus may include a processor which may be configured to: permute subcarriers of a regular band, including subcarriers assigned to mobile station(s) operating in a single carrier mode and subcarriers assigned to mobile station(s) operating in a multiple carrier mode, to generate a first permuted regular band of subcarriers; and permute subcarriers of the first permuted regular band that are assigned to mobile station(s) operating in multiple carrier mode with subcarriers of an adjacent guard band. | 04-15-2010 |
20100208608 | TRANSMISSION POWER CONTROL FOR SOUNDING SIGNAL FOR WIRELESS NETWORKS - In an example embodiment, an apparatus may include at least one processor and at least one memory including computer code. The at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus to at least perform: receiving at a mobile station from a base station in a wireless network, a channel quality threshold and a power adjustment value; measuring a downlink channel quality associated with each of a plurality of resource blocks in a downlink direction from the base station; selecting one or more of the resource blocks that have a channel quality that is greater than or equal to the channel quality threshold; and performing the following for each of the selected one or more resource blocks: determining a transmission power for transmitting a sounding signal via the resource block based upon the measured downlink channel quality for the resource block and power adjustment value; and transmitting, via a wireless transceiver, the sounding signal in an uplink direction to the base station via the resource block using the determined transmission power for the resource block. | 08-19-2010 |
20110032900 | Flexible Map Coding for Wireless Networks - A method for transmitting, to one or more wireless stations in a wireless network, map information identifying resources allocated to one or more of the wireless stations, the map information including a plurality of Maps, each Map allocating resources to one or more of the wireless stations, one or more of the Maps including a Next Map Pointer (NSP) that includes location information identifying a location of the next Map within a frame. | 02-10-2011 |
20110261806 | SOUNDING CHANNEL APPARATUS AND METHOD - According to an example embodiment, a method may include allocating, within a single physical resource unit (PRU), a plurality of channel sounding groups. Wherein each channel sounding group includes a frequency-time domain code division multiplexing (CDM) allocation. The method may also include broadcasting, in a downlink direction to one or more mobile stations in a wireless network, a signal that causes the receiving mobile stations to transmit a channel sounding signal. The method may further include receiving at least one channel sounding signal from at least one of the one or more mobile stations, the channel sounding signal being received in an uplink direction via one or more channel sounding groups. And, the method may include estimating the channel quality, of the channel used by the physical resource unit, based upon the received at least one channel sounding signal. | 10-27-2011 |