| Patent application number | Description | Published |
|---|
| 20100265842 | ENABLING SUPPORT FOR TRANSPARENT RELAYS IN WIRELESS COMMUNICATION - Providing for improved implementation of supplemental wireless nodes in a wireless base station deployment is described herein. By way of example, a donor base station is configured to send a schedule of data transmission to and from a set of UEs served by the base station, and further can provide the schedule and identifiers for the set of UEs to one or more wireless nodes serving the base station. Respective access channel measurements between respective UEs and respective wireless nodes can be forwarded to the base station, which in turn can identify optimal access channels for the set of UEs. Additionally, the donor base station can schedule multiple data transmissions on these access channels in a common transmission time slot, to achieve cell-splitting gains for the data transmissions. Range boosting, differential coding, and supplemental channel quality mechanisms are also provided for various wireless communication arrangements described herein. | 10-21-2010 |
| 20100265874 | PRE-COMMUNICATION FOR RELAY BASE STATIONS IN WIRELESS COMMUNICATION - Providing for wireless communication involving supplemental wireless nodes is described herein. By way of example, prior signaling is employed between a macro base station and a set of associated supplemental nodes to support pending wireless communication with a user terminal In some aspects, the prior signaling can include control or data traffic transmitted to or received from the user terminal. In addition, the supplemental nodes can synchronize transmission or reception of the control or data traffic transmissions with similar transmission or reception of the macro base station. In some aspects, the supplemental nodes can also replicate pilot signal transmissions on OFDM symbols employed by the macro base station for pilot signals, to give consistent downlink channel for both traffic and pilot signals. Accordingly, the user terminal observes consistent pilot transmissions over various time slots, as well as concurrent traffic transmissions that can generally be decoded with a common reference signal. | 10-21-2010 |
| 20100323711 | METHODS AND APPARATUS FOR BEAMFORMING FOR FEMTOCELLS - Methods and apparatus for beamforming for femtocells, such as in LTE wireless networks, to provide inter-cell coordination and interference mitigation are disclosed. A macrocell user equipment (UE) may determine information regarding an interfering femtocell node, such as a home eNodeB (HeNB). The information may be sent directly or indirectly, such as by a backhaul communication link, to the HeNB. The HeNB may adjust an output based on the information. The information may include spatial channel information, which may be used for beamforming at the HeNB output so as to mitigate interference in the direction of the UE. | 12-23-2010 |
| 20110019770 | METHODS AND APPARATUS FOR MEASURING, COMMUNICATING AND/OR USING INTERFERENCE INFORMATION - Wireless communications methods and apparatus are described. A communications apparatus, e.g., a base station, measures interference information, e.g., other sector interference information. The communications apparatus generates a preamble which includes a plurality of pilot symbols and at least one of the pilot symbols includes interference information. In some embodiments, the preamble is part of a superframe structure, e.g., a recurring superframe structure, including the preamble and a plurality of frames, at least some of the frames used to convey traffic data. The communications apparatus transmits the preamble, thus broadcasting the interference information to access terminals in the vicinity. An access terminal receives the preamble including a plurality of pilot signals, at least one of the pilot signals including interference information. The access terminal recovers the interference information from the received preamble and controls signal transmission based on the recovered interference information. | 01-27-2011 |
| 20110103296 | TDM-FDM RELAY BACKHAUL CHANNEL FOR LTE ADVANCED - Methods, apparatus and computer program products are provided for receiving a first group of resource blocks, frequency multiplexed in a transmission subframe, where the first group of resource blocks spans less than a full transmission bandwidth and includes a UE control channel in a first time interval, a relay control channel and a first quantity of dedicated reference symbols in a second time interval, and a shared data channel and a second quantity of dedicated reference symbols in a third time interval. | 05-05-2011 |
| 20110149765 | OPEN LOOP CHANNEL REPORTING IN A WIRELESS COMMUNICATION SYSTEM - Techniques for reporting channel quality indicator (CQI) in a wireless communication system are described. In one design, a UE determines CQI based on an assumption of a set of precoding matrices being used by a base station for data transmission to the UE. The base station may or may not actually use the set of precoding matrices assumed by the UE. The UE sends the CQI to the base station and thereafter receives data transmission sent by the base station based on the CQI. In one design, the UE determines the set of precoding matrices for a set of time-frequency resources available for data transmission to the UE. The UE determines the received signal quality of each time-frequency resource based on a precoding matrix for that time-frequency resource. The UE then determines the CQI based on the received signal qualities of the set of time-frequency resources. | 06-23-2011 |
| 20110164550 | Downlink Control Channel for Relay Resource Allocation - Certain aspects of the present disclosure provide a method for wireless communications. The method generally includes allocating resources of a backhaul link between a donor base station and a relay base station to the relay station for communicating with the donor base station and transmitting a control channel indicating the allocated resources to the relay base station, wherein the control channel is transmitted on a subset of physical resource blocks (PRBs) of subframes assigned for downlink communications on the backhaul link. | 07-07-2011 |
