Patent application number | Description | Published |
20080205281 | Scheduling synchronization techniques for wireless networks - Various embodiments are described relating to scheduling synchronization techniques for wireless networks. According to an example embodiment, a technique may include receiving a first bandwidth grant from a first wireless node, estimating a time of receipt for a second bandwidth grant from the first wireless node based on the receiving of the first bandwidth grant from the first wireless node, and issuing a third bandwidth grant to a second wireless node before the estimated time of receipt for the second bandwidth grant from the first wireless node. Other embodiments are provided as well. | 08-28-2008 |
20080291847 | Topology and route discovery and management for relay networks - Various example embodiments are disclosed relating to route discovery and management in relay networks. In an example embodiment, a first message may be received at a first network station in a wireless network. It may be determined whether the received first message includes an identifier of a second network station indicating an attachment of a network node to the second network station. The received first message may be modified to include an identifier of the first network station indicating an attachment of the network node to the first network station if it is determined that the received message does not include the identifier of the second network station. The received first message may be forwarded to a third network station. Various techniques may also be provided for updating and managing a network topology, e.g., for discovering, updating, and selecting communication paths for network traffic. | 11-27-2008 |
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 |
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 |
20090109932 | Fast urgent services support over 802.16 air interface - Among the proposals of the present application is a method that includes receiving a bandwidth request with a code division multiple access code from a first network node to a second network node. The method also includes processing the bandwidth request at the second network node. The method further includes receiving a first portion of an urgent service data flow related to the bandwidth request after fewer than four round trips of communication between the first network node and the second network node. | 04-30-2009 |
20090168722 | HANDOVER PROCEDURE - Various example embodiments are disclosed. One example embodiment may include determining, by a serving base station in a wireless network, to hand a mobile station over to a target base station. This example may further include receiving a base station-to-base station handover message from the target base station, the base station-to-base station handover message including at least one connection identifier (CID) associated with the target base station. This example may further include sending a base station-to-mobile station handover message to the mobile station based on the determining, the handover message including the at least one CID. | 07-02-2009 |
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 |
20090279502 | INTERNETWORKING BETWEEN WMAN AND WLAN NETWORKS - According to one general aspect, a method of using a base station (BS) comprising receiving, by the BS of a first wireless network, a notification that a mobile station (MS) is entering a semi-idle state with respect to the first network, wherein the semi-idle mode is also associated with the MS performing a handover from a first wireless network based upon a first networking standard to a second wireless network based upon a second networking standard. Further comprising storing a portion of a set of context information associated with the MS. Also comprising allocating uplink resources for the MS only to receive location update messages from the MS. And, maintaining at least some of the context information of the MS. | 11-12-2009 |
20090285176 | FRAMEWORK FOR INTERNETWORKING BETWEEN WMAN AND WLAN NETWORKS - According to one general aspect, a method of using a customer premises equipment (CPE) to represent a mobile station (MS) to a base station (BS) is described. Wherein the CPE and the BS are part of a first wireless network based upon a first networking standard, and the MS and the CPE are part of a second wireless network based upon a second networking standard. The method comprising associating the MS with the CPE. The method further comprising indicating to the BS that the CPE is acting as an agent for the MS on the second wireless network. Also comprising acting as an agent, on the second wireless network, for the MS. And comprising, storing context information related to the MS, wherein the context information includes MS context information related the first network and MS context information related the second network. | 11-19-2009 |
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 |
20100008328 | HANDOVER TECHNIQUES BETWEEN LEGACY AND UPDATED WIRELESS NETWORKS - According to an example embodiment, an apparatus may include a processor. The apparatus may be configured to transmit a handover request message from a legacy serving base station to a target updated base station, the request message including an indication that a mobile station is compliant with an updated specification; and receive a handover response message at the legacy serving base station from the target updated base station, the handover response message including one or more updated system parameters assigned to the mobile station for an updated time zone of the target base station. | 01-14-2010 |
20100061354 | OFFSET TIME FOR RANGING REQUEST MESSAGES - Various example embodiments are disclosed. According to an example embodiment, a method may include sending, by a base station in a wireless network, a paging message to a mobile station, the paging message identifying the mobile station. The method may also include receiving, at an offset time after the sending the paging message, a ranging request message from the mobile station, the offset time being based at least in part on an identifier of the mobile station. | 03-11-2010 |
20100111061 | ADDRESSING SCHEME FOR A RELAY NETWORK SYSTEM - According to one general aspect, a method may include collecting at least one Mobile Station (MS) Medium Access Control (MAC) Packet Data Units (PDUs), associated with at least one Mobile Station. In various embodiments, the method may also include generating at least one MS station identifier (STID) sub-header (MSID-SH), indicating for each MS MAC PDU (MPDU) a MS STID that is associated the respective MPDU. In some embodiments, the method may include packing the MSID-SH and the at least one of MPDU into a single Relay MAC PDU (RPDU). In various embodiments, the method may also include wirelessly transmitting the RPDU. | 05-06-2010 |
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 |
20100165921 | Mobile Station Handover in a Localized Base Station Environment - According to one general aspect, a method of operating a indoor cellular access point (ICAP) may comprise constructing a neighbor list of neighboring indoor cellular access points (NICAPs). The method may also include detecting at least one overlay macro base stations (OMBSs). In one embodiment, the method may further comprise associating the overlay macro base stations with the indoor cellular access point. The method may also include transmitting a message to a mobile station (MS) wherein the message includes the neighbor list. | 07-01-2010 |
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 |
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 |
20110194538 | RESOURCE ALLOCATION DURING SILENCE PERIOD FOR A WIRELESS NETWORK - Various example embodiments are disclosed herein. According to an example embodiment, a technique may include allocating periodic resources to a mobile station in a wireless network for transmission of voice data, receiving from the mobile station an indication of a start of a silence period, and adjusting, based on the receiving of the indication of a start of silence period, the allocating of the periodic resources from a size and period of resource for the voice data to a size and period of resource for a silence indication (SID) frame. Alternatively, in response to receiving an indication of a start of silence period, the allocating of periodic resources for the VoIP voice data may be temporarily stopped during the silence period. | 08-11-2011 |
20110249644 | ALLOCATING RESOURCE UNITS TO A MOBILE STATION - Various example embodiments are disclosed. According to one example, a method may include permuting, by a superordinate station in a wireless network, physical resource units to logical resource units, the physical resource units of sequential logical resource units being noncontiguous. The method may also include sending at least one allocation message allocating a block of sequential logical resource units to each of a plurality of mobile stations, each of the allocated blocks being contiguous with at least one other allocated block. The method may also include de-allocating at least a first block of sequential logical resource units from a first mobile station selected from the plurality of mobile stations and a second block of sequential logical resource units from a second mobile station selected from the plurality of mobile stations, the first block of sequential logical resource units being noncontiguous with the second block of logical resource units. The method may also include sending at least one re-allocation message allocating the first block of sequential logical resource units and at least a portion of the second block of logical resource units to a new mobile station. | 10-13-2011 |
20110270958 | APPARATUS, AND ASSOCIATED METHOD, FOR FACILITATING QoS AND BEARER SETUP IN AN IP-BASED COMMUNICATION SYSTEM - Apparatus, and an associated method, for generating a bearer setup request in a mobile, or other, communication system. An application-level bearer setup request generator is positioned at the application level of the communication system. A request is forwarded to a transport level. And a bearer setup request signal generator, located at the transport level, generates a transport-level bearer setup request that is routed to the bearer manager. Bearer setup is performed by the bearer manager and a response is provided through the transport layer to the application level, and back to a communication node when the bearer setup is performed. | 11-03-2011 |
20120002589 | HANDOVER OR LOCATION UPDATE FOR OPTIMIZATION FOR RELATY STATIONS IN A WIRELESS NETWORK - Various embodiments are disclosed relating to the optimization of relay station handovers and location update in a wireless network. According to an example embodiment, a request to handover a plurality of mobile stations from a first base station to a second base station may be sent. An identifier associated with the second base station for each of the plurality of mobile stations may be received. In another example embodiment, each of the identifiers is forwarded to the mobile station corresponding to the connection identifier. In another example embodiment, a location update may be performed by sending a message to a network device, such as a target base station, to provide location update information for a plurality of mobile stations. In this manner, one message may be transmitted over a wireless link to facilitate a handover or location update for a plurality of mobile stations. | 01-05-2012 |
20120106416 | SYNCHRONIZATION RECOVERY AFTER LOSS OF SIGNALS FOR WIRELESS NETWORKS - Various example embodiments are disclosed. According to an example embodiment, a technique may include determining, by a mobile station, if either a traffic indication or data has been received at the mobile station from a base station during a listening window of a current sleep cycle; and increasing the size of a next sleep cycle, up to a maximum sleep cycle size, if neither the traffic indication nor the data are received during the listening window of the current sleep cycle. | 05-03-2012 |