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Chao Wei, Beijing CN

Chao Wei, Beijing CN

Patent application numberDescriptionPublished
20090257343PERMUTING SLOTS TO LOGICAL DISTRIBUTED RESOURCE UNITS - Various example embodiments are disclosed. According to an example embodiment, a method may comprise sending, by a sending wireless station in a wireless network, data to a receiving wireless station, the data being sent via at least one logical distributed resource unit (LDRU), the LDRU including slots included in at least one physical resource unit (PRU), each of the slots included in the at least one PRU being associated with a different orthogonal frequency division multiple access (OFDMA) symbol and a different OFDMA subcarrier.10-15-2009
20090257382Method, apparatus and computer program for permutation and subchannelization - M physical resource blocks PRBs are allocated for localized resource allocation LRA and N-M PRBs are allocated for distributed resource allocation DRA. Each PRB has U subcarriers. Subcarriers of the N PRBs are permuted to result in N subchannels. Serially for each m10-15-2009
20090262696MAPPING RESOURCE BLOCKS INTO SUBCHANNELS - According to an example embodiment, a method may include determining, by a first wireless node in a wireless network, a number N of resource blocks available for transmitting data within a cell, the N resource blocks each including V resource block orthogonal frequency division multiplexing (OFDM) symbols, the V resource block OFDM symbols each including U resource block subcarriers. The method may also include mapping the N resource blocks into N subchannels based on a permutation formula, the permutation formula assigning, based on permutation parameters including the number N and a random or pseudorandom variable, U subchannel subcarriers for each of V subchannel OFDM symbols to each of the N subchannels and thereby allocating a subchannel index for each of the N subchannels. The method may also include sending a message to a second wireless node indicating the permutation parameters and the allocated subchannel index of at least one of the N subchannels for communication between the first wireless node and the second wireless node.10-22-2009
20100002641SUPPORT FOR BROADCAST CONTROL HEADER FOR WIRELESS NETWORKS - Various example embodiments are disclosed herein related to broadcast control headers for wireless networks. According to an example embodiment, a method may include allocating resources for a broadcast channel for a wireless network may include determining a set of physical resource units (PRUs), each PRU including a plurality of contiguous subcarriers, selecting one or more subsets of the PRUs, each subset including a plurality of PRUs distributed across the set of PRUs, and determining a plurality of logical resource units (LRUs) from each subset of PRUs, including permutating the subcarriers independently within each subset of PRUs to obtain the plurality of LRUs for each subset of PRUs, each LRU including a plurality of distributed subcarriers.01-07-2010
20100008314VARIABLE CODING LENGTH FOR RESOURCE ALLOCATION - According to one general aspect, a method comprising establishing a connection with at least one mobile station (MS). The method further comprising, in one embodiment, allocating communication resources, in resource blocks, to the MS. In various embodiments, the method also comprising selecting a size of a burst length field based in part upon a bandwidth and a number of orthogonal frequency-division multiplexing (OFDM) symbols used to communicate with the MS. In another example embodiment, the method also comprising selecting a size of a burst length field based in part upon a bandwidth and scheduling time duration (which can be based upon sub-frame, multiple sub-frame or frame duration) used to communicate with the MS. In one embodiment, the method may also include transmitting, to the MS, a message that includes the burst length field. In some embodiments, the burst length field may indicate to the MS the number of resource blocks allocated to the MS for purposes of communication.01-14-2010
20100220643Method and Apparatus for Providing Distributed Scheduling - An approach is provided for distributing scheduling information within a wireless network. A multicast group is configured to include one or more neighboring nodes of a meshed wireless network. A multicast link identifier to each link to the neighboring nodes. Scheduling information is generated for distribution to the multicast group over the corresponding links.09-02-2010
20100278221METHOD AND APPARATUS FOR PROVIDING AN EFFICIENT PILOT PATTERN - An approach is provided for generating a pilot pattern. A sequence of tiles is generated, wherein the tiles are arranged to avoid redundant pilot sub-carriers by utilizing different pilot patterns. A transmission signal is generated according to the generated sequence for transmission over a network.11-04-2010
20110080863Cell-Selective Network Access - The present invention relates to methods and apparatuses for providing selective network access, wherein a cell type indication is provided based on at least one of a preamble and a header portion of a broadcast signal. At the receiving end, it is checked based on at least one of the preamble and the header portion, whether broadcast signals are received from different first and second cell types. The first cell type is selected for network access, if both broadcast signals from the first and second cell types are received with sufficient strength.04-07-2011
20110141905Method, Mobile Device and Communication System to Determine the Type of a Network Node - A network node, a mobile device, a communication system, a method for detecting the type of a network node, the method for transmitting the type of a network node and the use of a data frame for determining the type of a network node is described. To distinguish between different types of network nodes, a signal pattern including an attribute is transmitted/received. The attribute is type-indicative of the type of the network node. Different ways of implementing the type-indicative attribute are described.06-16-2011

Patent applications by Chao Wei, Beijing CN