Patent application number | Description | Published |
20090103465 | SYNCHRONIZED MULTI-BS MBS FOR IMPROVED IDLE MODE POWER SAVINGS IN HIGHER-ORDER FREQUENCY REUSE NETWORKS - A method for providing a multicast and broadcast service (MBS) in a wireless network, the method comprising: establishing an MBS MAC connection between a mobile station (MS) and a first base station (BS) in an MBS zone; sending a first MBS_MAP message in a first frame, wherein the first MBS_MAP message includes information for locating a second MBS_MAP message in a second frame, but does not specify the location of the second MBS MAP message within the second frame; and sending the second MBS_MAP message in the second frame. | 04-23-2009 |
20090109890 | ENHANCED WIMAX MBS SERVICE ON SEPARATE CARRIER FREQUENCY - A system and method for supporting multicast and broadcast service (MBS) on one or more separate carrier frequencies are provided. The system includes carrier frequency information to indicate that data in an MBS zone resides on a separate carrier, and to direct the subscriber stations to receive MBS data on the separate carrier. The method comprises establishing an MBS MAC connection between a subscriber station and a base station in a MBS zone, processing carrier frequency information to determine whether data associated with the MBS zone resides on a separate carrier, and if so, transmitting the MBS data on the separate carrier. | 04-30-2009 |
20090154386 | WIMAX MULTICAST BROADCAST SERVICES (MBS) EFFICIENT HANDOVER AND POWER SAVING SUPPORT FOR INTRA AND INTER-MBS ZONES - A broadcast management message includes MBS Zone Neighbor information to associate different MBS Zones which transmit the same MBS contents over a single frequency or a different frequency. An MBS Zone Service Group contains a group of MBS Zones that transmit the same MBS content over the same frequency or at different frequencies. All the MBS Zones that belong to the same MBS Zone Service Group may have the same MBS Zone Service Group Identifier (ID). | 06-18-2009 |
20090185632 | FLEXIBLE OFDM/OFDMA FRAME STRUCTURE FOR COMMUNICATION SYSTEMS - A flexible OFDM/OFDMA frame structure technology for communication systems is disclosed. The OFDM frame structure technology comprises a configurable-length frame which contains a variable length subframe structure to effectively utilize OFDM bandwidth. Furthermore, the frame structure facilitates spectrum sharing between multiple communication systems. | 07-23-2009 |
20110096783 | FLEXIBLE OFDM/OFDMA FRAME STRUCTURE FOR COMMUNICATION SYSTEMS - A flexible OFDM/OFDMA frame structure technology for communication systems is disclosed. The OFDM frame structure technology comprises a configurable-length frame which contains a variable length subframe structure to effectively utilize OFDM bandwidth. Furthermore, the frame structure facilitates spectrum sharing between multiple communication systems. | 04-28-2011 |
20110103406 | FLEXIBLE OFDM/OFDMA FRAME STRUCTURE FOR COMMUNICATION SYSTEMS - A flexible OFDM/OFDMA frame structure technology for communication systems is disclosed. The OFDM frame structure technology comprises a configurable-length frame which contains a variable length subframe structure to effectively utilize OFDM bandwidth. Furthermore, the frame structure facilitates spectrum sharing between multiple communication systems. | 05-05-2011 |
20110292859 | MOBILITY MANAGEMENT METHOD AND SYSTEM FOR MULTICAST AND BROADCAST SERVICES - A system is disclosed for performing a mobile station handover while continuing a multicast and broadcast service (MCBCS). The system includes a transceiver module transmitting from the mobile station multicast and broadcast service (MBS) zone criteria, including a list of one or more potential target base stations, to a serving base station, if a target base station is not in the same MBS zone as the serving base station. A handover request is made to one or more of the potential target base stations from the serving base station, determined based on the MBS zone criteria, where the MBS zone criteria includes an MCBCS continuity policy of the mobile station. A target base station is then selected, from the list of one or more potential target base stations, that satisfies the MBS zone criteria, and a handover process is performed to the target base station. | 12-01-2011 |
20130260817 | METHOD AND APPARATUS FOR MANAGING INTERFERENCE IN WIRELESS BACKHAUL NETWORKS THROUGH POWER CONTROL WITH A ONE-POWER-ZONE CONSTRAINT - Methods and apparatus are provided for managing interference in a wireless backhaul network comprising a plurality of hubs, each hub serving a plurality of remote backhaul modules (RBM), using power control with a one-power-zone (OPZ) constraint. Each hub uses a transmit frame structure comprising a plurality of zones, each RBM is scheduled on a different zone, and the same power level is maintained across all zones within a transmit frame. Under the OPZ constraint, and for scheduling policies under which the number of zones assigned to each RBM is fixed, the power and scheduling sub-problems are decoupled. This enables power control independent of scheduling, using methods having lower computational complexity. Methods are disclosed comprising iterative function evaluation or Newton's method approaches based on a weighted sum-rate maximization across the network, which can be implemented in a distributed fashion. Some of the methods can be implemented asynchronously at each hub. | 10-03-2013 |
20140126514 | METHOD AND APPARATUS FOR DETERMINING NETWORK CLUSTERS FOR WIRELESS BACKHAUL NETWORKS - Practical methods and apparatuses are provided for determining network clusters in wireless backhaul networks comprising a plurality of hubs and Remote Backhaul Modules (RBM) ( | 05-08-2014 |
20140148184 | METHOD AND APPARATUS FOR COORDINATED POWER-ZONE-ASSIGNMENT IN WIRELESS BACKHAUL NETWORKS - Methods are disclosed for scheduling resources in a wireless backhaul network comprising a plurality of N Hubs, each Hub serving a plurality of K Remote Backhaul Modules (RBMs), using a coordinated power zone assignment across the backhaul network. For each Hub, a one-to-one power zone assignment, of each of the K RBM to one of the K power zones, is computed by maximizing a selected network utility across the backhaul network. Coordinated power zone assignment according to preferred embodiments based on the auction approach offers a close-to-global-optimal solution. Coordinated scheduling based on first assigning RBMs to hubs heuristically, and then optimally scheduling RBMs within each hub also offers significant performance improvement as compared to non-coordinated systems. Preferred embodiments offer a significant performance improvement as compared to conventional systems. They are low in complexity, and compatible with the physical constraints of SFR-based wireless backhaul network, which make them amenable to practical implementation. | 05-29-2014 |
Patent application number | Description | Published |
20080247372 | Data Synchronization for Multicast/Broadcast Service in Wireless Relay Network - Wireless communication relay networks and techniques for providing data synchronization in Multicast Broadcast Services (MBS). | 10-09-2008 |
20080318576 | Handover Between Wireless Cellular Network and Private Network in Wireless Communications - Techniques and systems for performing handover of a mobile station between a cellular wireless network and a private cell or private network. | 12-25-2008 |
20090016290 | Resource Allocation in Wireless Multi-Hop Relay Networks - Technologies that, among other things, provide resource allocation in multi-hop wireless networks with relay stations and can be used to supply information to link data packets with a respective resource allocation. | 01-15-2009 |
20090147731 | Enhancement of Path Quality of Service in Multi-Hop Packet Communication Networks - Techniques and systems for enhancing quality of service (QoS) in communication networks, including wired and wireless communication networks. Implementations of described techniques and systems can be used to provide path-based QoS with distributed per-hop scheduling for carrying traffic over a multi-hop packet communication network. | 06-11-2009 |
20100130212 | Femto Cell Handover In Wireless Communications - Techniques, apparatuses, and systems can include determining one or more handover base station candidates for a specific mobile station associated with a serving base station based at least on respective one or more proximities of the one or more handover base station candidates to the serving base station and one or more base station access privileges associated with the mobile station. | 05-27-2010 |
20100135495 | MAC LAYER PACKET DATA UNITS FOR WIRELESS COMMUNICATIONS - Technologies for wireless communications can include communicating connection information that specifies one or more parameters of a connection between a base station and a wireless device. The connection information can be indicative of one or more of: a station identifier, whether data packets associated with the connection include a cyclic redundancy check, and whether data packets associated with the connection include encrypted information. These technologies can include constructing, based on the connection information, a media access control (MAC) protocol data unit (PDU) that includes a header at a beginning portion of the MAC PDU. The header can include one or more of: a first flag that indicates a header type, a second flag that indicates whether there is a subheader inclusion following the header in the MAC PDU, a flow identifier that, together with the station identifier, identifies the connection, and a length value. | 06-03-2010 |
20110069668 | Dedicated Acknowledgement and Delivery of Management Messages in Wireless Communication Systems - Techniques and systems for acknowledging management message reception in a wireless communication system can include operating a first radio station to generate a management message that contains a sequence number unique to the management message and to direct the management message to a second radio station; and operating the second radio station, after receiving the management message from the transmitter, to generate and transmit, before decoding the content of the received the management message, an acknowledgement to the transmitter identifying the received manage message by the sequence number unique to the management message. | 03-24-2011 |
20110237251 | IDLE AND PAGING SUPPORT FOR WIRELESS COMMUNICATION SYSTEMS WITH PRIVATE CELLS - Systems, apparatuses, and techniques for operating a wireless communication system with public and private paging groups. Systems, apparatuses, and techniques can include operating a base station to provide wireless service to mobile stations in a macrocell, the macrocell associated with a public paging group identifier and a private paging group identifier; assigning the private paging group identifier to one or more private cells that are spatially situated in at least a portion of the macrocell, the one or more private cells are operable by one or more base stations to restrict wireless access to specific wireless devices; and using wireless device access privileges associated with the one or more private cells for one or more wireless operations associated with the mobile stations, the wireless operations including paging and location update. | 09-29-2011 |
20130107797 | RESOURCE ALLOCATION IN WIRELESS MULTI-HOP RELAY NETWORKS | 05-02-2013 |
20130128730 | ENHANCEMENT OF PATH QUALITY OF SERVICE IN MULTI-HOP PACKET COMMUNICATION NETWORKS - Techniques and systems for enhancing quality of service (QoS) in communication networks, including wired and wireless communication networks. Implementations of described techniques and systems can be used to provide path-based QoS with distributed per-hop scheduling for carrying traffic over a multi-hop packet communication network. | 05-23-2013 |
20140126500 | METHOD AND APPARATUS FOR PERFORMANCE MANAGEMENT IN WIRELESS BACKHAUL NETWORKS VIA POWER CONTROL - A method and system is disclosed for managing performance of a wireless backhaul network through power management, which provides a practical approach to balancing data throughput and fairness. For each transmit frame, one or more power zones is defined, each power zone comprising a set of radio resources operating at one transmit power level P | 05-08-2014 |