| Patent application number | Description | Published |
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| 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 |
| 20080279145 | Aggregated harq report - A system and method include a base station configured to provide centralized data transmission scheduling for at least one relay operatively connected to the base station configured to provide centralized data transmission scheduling for at least one relay operatively connected to the base station in a point-to-point connection and configured to provide centralized data transmission scheduling for at least one mobile station operatively connected to the relay in a point-to-multipoint connection. The method efficiently reports ACKs/NAKs for a centralized scheduler wireless system that uses tunneling for data transmission and, in order to reduce a usage of bandwidth for reporting. The system and method also perform an aggregation via coding of ACK/NAK channels. | 11-13-2008 |
| 20090010198 | SHARED HARQ FEEDBACK CHANNELS FOR VIRTUAL GROUPING IN A WIRELESS RELAY NETWORK - Various embodiments are disclosed, which may include transmitting a transmission schedule for a data burst to a plurality of relay stations in a wireless relay network. The transmission schedule may identify a data channel for transmission of the data burst and a corresponding shared negative acknowledgment feedback channel for transmission of a negative acknowledgment. The negative acknowledgment feedback channel may be shared by the plurality of relay stations. | 01-08-2009 |
| 20090060010 | DIFFERENTIAL CHANNEL QUALITY REPORTING - Various example embodiments are disclosed herein. According to one example embodiment, a method may include obtaining a first channel quality measurement for a wireless node such as a mobile station or relay station in a wireless network. The method may further include sending, from the wireless node, a full channel quality indicator (CQI) to a base station based on the first channel quality measurement. The method may further include obtaining a second channel quality measurement for the wireless node. The method may further include sending a differential CQI to the base station based on comparing the second channel quality measurement to the first channel quality measurement. The differential CQI may occupy less channel resources than the full CQI. | 03-05-2009 |
| 20090092076 | Method and apparatus to reduce system overhead - System throughput is improved by decreasing the system overhead by reducing the size of control packets and data packet headers. A connection identifier (CID) is divided into a CID part | 04-09-2009 |
| 20090279488 | VARIABLE HEADER TYPES FOR PERSISTENT RESOURCE ALLOCATION IN A WIRELESS NETWORK - Various example embodiments are disclosed herein. According to an example embodiment, an apparatus may include a wireless receiver configured to receive a persistent resource allocation, the persistent resource allocation providing a periodically recurring resource, and a wireless transmitter configured to transmit a persistent data burst in a first frame via the persistent resource allocation, the persistent data burst including a compressed MAC (media access control) header that excludes (or omits) a connection identifier (CID) field, wherein the compressed MAC header of the persistent data burst includes a field that indicates that the MAC header of the persistent data burst is compressed. | 11-12-2009 |
| 20090310533 | MEDIUM ACCESS CONTROL PROTOCOL DATA UNIT OVERHEAD IMPROVEMENTS - An apparatus comprising a controller configured to pack a plurality of Service Data Units (SDUs) from a plurality of connections associated with a Mobile Station (MS) into a single Medium Access Control (MAC) Protocol Data Unit (PDU). In various embodiments, the controller may be further configured to generate a Generic MAC Header (GMH) that indicates that a plurality of Service Data Units (SDUs) from a plurality of connections associated with a Mobile Station (MS) have been packed into the MAC PDU. In some embodiments, the controller may be further configured to generate, for each SDU, an associated Extended Packing Sub-Header (EPSH). The apparatus further comprising a memory configured to store MAC PDU. The apparatus also comprising a wireless transceiver configured to transmit the MAC PDU. | 12-17-2009 |
| 20100008314 | VARIABLE 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 |
| 20100054172 | FRAME SYNCHRONIZATION USING BIDIRECTIONAL TRANSIT AND RECEIVE ZONES - Various example embodiments are disclosed relating to synchronization of frames using bidirectional transmit and receive zones. An example method includes delaying, at a wireless relay station, a start time of a frame. In the example method, the start time of the frame is delayed, such that the relay station receives one or more data symbols from a superordinate wireless station and one or more data symbols from a subordinate wireless station at substantially the same time during the frame. | 03-04-2010 |
| 20100111306 | SECURITY MODEL FOR A RELAY NETWORK SYSTEM - According to one general aspect, a method may include acquiring a message. In some embodiments, the method may also include determining if a relay station (RS) is allowed to manipulate portions of the message. In some embodiments, the method may also include, if so, generating a message authentication code (MsgAC) based upon a MsgAC key (MsgACK) known to the RS. In some embodiments, the method may also include combining the message with the MsgAC. In some embodiments, the method may also include wirelessly transmitting the combined message to the RS. | 05-06-2010 |
| 20100329197 | MOBILE STATION AGGREGATION OF ACKNOWLEDGMENTS AND NEGATIVE ACKNOWLEDGMENTS IN WIRELESS NETWORKS - Various example embodiments are disclosed herein. According to one example embodiment, a method may include determining, at a base station in a wireless network, an uplink channel quality for a mobile station, sending an acknowledgment/negative acknowledgment (ACK/NAK) aggregation indicator to the mobile station based on the determining, sending a plurality of data bursts to the mobile station, and receiving at least one aggregated ACK/NAK report from the mobile station. | 12-30-2010 |
| 20110010610 | Multi-User Packing Techniques for Wireless Network - Various example embodiments are disclosed herein. According to an example embodiment, a method may include transmitting a Media Access Control Protocol Data Unit (MAC PDU) via a wireless link to one or more mobile stations, the MAC PDU including a plurality of MAC management messages as a pay load, at least some of the MAC management messages directed to different mobile stations, the KIAC PDU including a MAC header having a connection ID field identifying a connection for all (or at least one, or a plurality) of the MAC management messages included in the MAC PDU. | 01-13-2011 |
