Patent application number | Description | Published |
20080219221 | ORTHOGONAL VARIABLE SPREADING FACTOR (OVSF) CODE ASSIGNMENT - The invention includes a system and methods for orthogonal variable spreading factor (OVSF) code assignment, de-allocation and code tree pruning. The invention also includes OVSF code identification and storage schemes. Embodiments are provided for code tree pruning, code assignment and de-allocation. These embodiments apply to both slotted and non-slotted code division multiple access systems. | 09-11-2008 |
20080304453 | METHOD AND APPARATUS FOR SEQUENTIAL MESSAGES - A method and apparatus for sequential measurement reporting in media independent handover communications are disclosed. In a first embodiment a measurement time field is added to existing IEEE 802.21 measurement report messages. In a second embodiment a measurement sequence number field is added to existing IEEE 802.21 measurement report messages. Optionally, the measurement time field, or sequence number field may be included in an IEEE 802.21 message. | 12-11-2008 |
20080305799 | HETEROGENEOUS NETWORK HANDOVER-SUPPORT MECHANISM - Methods and mechanisms enhance heterogeneous media independent handover (MIH) between different link layer technologies. Embodiments include using an MIH proxy entity, MIH capable network controller, and an MIH server. Enhancements are made to the query phase, preparation phase, execution phase and completion phase by including required information in MIH messages. | 12-11-2008 |
20090042583 | WIRELESS COMMUNICATION METHOD AND APPARATUS FOR IMPLEMENTING ACCESS POINT STARTUP AND INITIAL CHANNEL SELECTION PROCESSES - A startup process of an access point (AP) includes a discovery phase and an announcement phase. During the discovery phase, the AP detects neighboring APs from its own extended service set (ESS), neighboring APs from different ESSs, and external sources of interference. During the announcement phase, the AP transmits its beacon signals at maximum power in order to accelerate recognition by neighboring APs running the discovery phase. An automatic initialization channel selection process of an AP scans channels the AP will use to communicate. Information of each scanned channel is recorded and a best performance channel is determined for use by the AP. | 02-12-2009 |
20090092094 | METHOD AND APPARATUS FOR IDENTIFYING MOBILE NETWORK PROTOCOL CAPABILITIES - A method and apparatus for improving handover in an IEEE 802.21 compliant communication network. A query is transmitted from a wireless transmit/receive unit (WTRU) to a media independent handover (MIH) server (MIHS). The WTRU includes a target point of attachment (PoA) and/or a preferred mobile inter protocol (MIP) method. The WTRU receives a response from the MIHS indicating the MIP method supported by the target PoA. Based on the received response, the WTRU may make an informed decision regarding handover. | 04-09-2009 |
20090092115 | APPARATUS AND METHODS FOR CENTRAL CONTROL OF MESH NETWORKS - A method and a wireless communication device that implements a control node for a mesh network. Preferably, the device and method are used in an 802.11 LAN. | 04-09-2009 |
20090103491 | LINK LAYER QUALITY OF SERVICE PARAMETER MAPPING - A detailed QoS parameter mapping of 3GPP QoS parameters to IEEE 802.21 MIH link QoS parameters. The detailed mapping includes an IEEE 802.21 Supported Number of Class of Service (CoS) parameter to indicate supported 3GPP QoS classes (conversational, streaming, interactive, and background). IEEE 802.21 MIH capable networks may use the detailed mapping to improve access-independent mobility management. A wireless transmit/receive unit (WTRU), an access point, and other network infrastructure capable of performing the detailed QoS parameter mapping are also disclosed. | 04-23-2009 |
20090135788 | ORTHOGONAL VARIABLE SPREADING FACTOR (OVSF) CODE ASSIGNMENT - The invention includes a system and methods for orthogonal variable spreading factor (OVSF) code assignment, de-allocation and code tree pruning. The invention also includes OVSF code identification and storage schemes. Embodiments are provided for code tree pruning, code assignment and de-allocation. These embodiments apply to both slotted and non-slotted code division multiple access systems. | 05-28-2009 |
20090239554 | METHOD AND APPARATUS TO DELIVER PUBLIC WARNING MESSAGES - A method and apparatus for a wireless transmit receive unit (WTRU) to receive an emergency situation notification. The method and apparatus include the WTRU receiving a paging message with an emergency situation notification, and the WTRU receiving scheduling information in a system information block. | 09-24-2009 |
20090268671 | WIRELESS COMMUNICATION METHOD AND APPARATUS FOR IMPLEMENTING ACCESS POINT STARTUP AND INITIAL CHANNEL SELECTION PROCESSES - A startup process of an access point (AP) includes a discovery phase and an announcement phase. During the discovery phase, the AP detects neighboring APs from its own extended service set (ESS), neighboring APs from different ESSs, and external sources of interference. During the announcement phase, the AP transmits its beacon signals at maximum power in order to accelerate recognition by neighboring APs running the discovery phase. An automatic initialization channel selection process of an AP scans channels the AP will use to communicate. Information of each scanned channel is recorded and a best performance channel is determined for use by the AP. | 10-29-2009 |
20090318145 | PUSH MECHANISM FOR INFORMATION SERVICES IN IEEE 802.21 MEDIA INDEPENDENT HANDOVER - A push mechanism for IEEE 802.21 media independent handover (MIH) information services (IS) is provided to push information to MIH users. Alternatively, an indication may be provided that information is available, and a pull mechanism may then be implemented to retrieve the information. | 12-24-2009 |
20100008344 | SELF-CONFIGURABLE WIRELESS LOCAL AREA NETWORK NODE - In a wireless local area network including an access controller (AC) and an access points (AP), the AC transmits a functionality inquiry to the AP. Upon receiving the inquiry, the AP transmits a query response including the functional capabilities of the AP. The AC then generates a map of the functional capabilities present in the network based on the inquiry response. Conflicting or redundant functional capabilities are identified and are disabled, enabled, or reconfigured by instructions from the AC. The AC may selectively enable and/or disable functional capabilities at nodes in the network to provide a more balanced load on the network, and to provide for load sharing by allocating functionalities between and among network nodes having common functional capabilities to satisfy a variety of situations encountered in the network. | 01-14-2010 |
20100022247 | MEASUREMENT REQUEST REPORT EXTENSIONS FOR MEDIA INDEPENDENT HANDOVER - A method and apparatus for generating a measurement report request including media independent handover (MIH) information at a medium access control (MAC) device for use in configuring a physical layer measurement device to measure the physical layer and generate a MIH event report are provided. The request is sent to a physical layer measurement device which is configured using the MIH information. A physical channel is then measured based on the MIH information. A MIH event is generated at the physical layer device and sent to a higher layer device. | 01-28-2010 |
20100220687 | SPECTRUM MANAGEMENT ACROSS DIVERSE RADIO ACCESS TECHNOLOGIES - A network management node may manage a network of base stations and wireless transmit/receive units (WTRUs) that operate using diverse radio access technologies. The network management node may communicate with other network management nodes to manage spectrum usage across their respective managed networks. The network management node may acts as a proxy for cellular-capable WTRUs that operate within the managed networks. The network management node may perform handovers of Peer-to-Peer (P2P) groups that operate within the managed networks. The WTRUs may include WTRUs that operate at Very High Frequency (VHF) or Ultra High Frequency (UHF) spectrum (“white space”) frequencies. | 09-02-2010 |
20100246532 | WIRELESS COMMUNICATION METHOD AND SYSTEM FOR IMPLEMENTING MEDIA INDEPENDENT HANDOVER BETWEEN TECHNOLOGICALLY DIVERSIFIED ACCESS NETWORKS - A wireless communication method and device may be used to perform a media independent handover between technologically diversified access networks. A wireless transmit/receive unit (WTRU) may be configured to communicate with a plurality of technologically diversified access networks, such as Institute of Electrical and Electronics Engineers (IEEE) 802.X networks and Third Generation Partnership Project (3GPP) networks. The WTRU may include a plurality of access network specific protocol stacks and a media independent handover (MIH) function. The WTRU may be configured to communicate information with each of the plurality of access network specific protocol stacks using protocols specific to each to the plurality of access network protocol stacks. | 09-30-2010 |
20100284291 | MOBILITY MANAGEMENT WITH DOWNLINK-ONLY WIRELESS NETWORKS - A wireless transmit/receive unit (WTRU) may include a media application that receives data from a media server via a link on a downlink (DL) -only radio access network. The link on the DL-only radio access network may be handed over to a second DL-only radio access network. A mobility management server, such as a Media Independent Handover (MIH) server, may communicate with the WTRU via a second radio access network that is a bidirectional radio access network to facilitate the handover. MIH messages may include fields that relate to DL-only radio access technologies may be used to facilitate handover of a DL-only link. Further, MIH broadcast or multicast messages may be used to facilitate the handover of a DL-only link. | 11-11-2010 |
20100302968 | COMMUNICATION ACCESS TECHNOLOGY MANAGEMENT - A method and apparatus are disclosed for communication access technology management. A wireless transmit/receive unit (WTRU) may evaluate end-to-end connection performance by sending a connection ECHO message and receiving a connection ECHO response. The connection performance may be evaluated for a connection including multiple transmission paths, and for multiple connections. The WTRU may establish or modify a multihoming communication session with a mobility server using a plurality of connections. Each connection may be established using a different interface. | 12-02-2010 |
20110019104 | TELEVISION BAND (TVBD) CHANNEL QUIETING ACROSS DIVERSE RADIO ACCESS TECHNOLOGIES - Disclosed herein are methods and apparatus for the communication of wireless data using diverse radio access technologies (RATs) in Television Band (TVBD) frequencies. An architecture for communicating wireless data in TVBD frequencies may include one or more network nodes that perform functions related to the coordination of channel quieting across multiple diverse RATs. Channel quieting may be performed across multiple diverse RATs by using temporary channel reassignments, by aggregating wireless transmit/receive units (WTRUs) that use a particular RAT onto the same channel, and/or via other techniques. | 01-27-2011 |
20110064050 | BROADCAST SERVICE HANDOVER - A wireless transmit/receive unit (WTRU) may receive a broadcast service via a broadcast system. The broadcast service may be handed over from the broadcast system to a second broadcast system, and the WTRU may receive the broadcast service via the second broadcast system. The WTRU and/or the broadcast system may change broadcast service configuration parameters (such as video encapsulation format, video codec, frame rate, audio codec) to receive and/or display broadcast service data received via the second broadcast system. Additionally, a WTRU may receive a broadcast service via a broadcast system that includes more than one broadcast transmission network. The broadcast service may be handed over from a first broadcast transmission network in the broadcast system to a second broadcast transmission network in the broadcast system. The WTRU may change broadcast service configuration parameters to receive and/or display broadcast service data received via the second broadcast transmission network. | 03-17-2011 |
20110110286 | METHOD AND APPARATUS FOR MULTICAST MOBILITY - A method and an apparatus for a proxy mobile Internet protocol (PMIP) supporting a dedicated multicast local mobility anchor (LMA) and mobile access gateway (MAG) is provided. The LMA assigns an Internet Protocol (IP) address to a wireless transmit receive unit (WTRU) that processes the IP address and sends a router solicitation message to a serving MAG. A WTRU is disclosed to receive a first IP address that is for unicast service and a second IP address that is for multicast services. Generally, the method and apparatus proposes architecture, interfaces, and procedures to enable multicast mobility using Proxy Mobile IP. More specifically operations of aggregated PMIP tunnels for multicast services are described. Multicast mobility is enabled when mobile nodes move from one MAG to another MAG, intra-LMA, and inter-LMA. And, Multicast mobility is enabled between bidirectional network and downlink only multicast network in a hybrid network. | 05-12-2011 |
20110235516 | WIRELESS COMMUNICATION METHOD AND SYSTEM FOR ROUTING PACKETS VIA INTRA-MESH AND EXTRA-MESH ROUTES - A method and apparatus for routing a packet implemented in a mesh point (MP) of a wireless network are described. According to the method, a plurality of intra-mesh and extra-mesh routes are compared. One of the plurality of intra-mesh and extra-mesh routes is selected for transmission of the packet based on at least one criterion. The packet is transmitted over the selected one of the plurality of intra-mesh and extra-mesh routes. | 09-29-2011 |
20110250850 | SYSTEM AND METHOD FOR DETERMINING AIR INTERFACE INFORMATION FOR RADIO RESOURCE MANAGEMENT IN WIRELESS COMMUNICATIONS - A method for determining values for use by radio resource management functions is disclosed. Air interface actual values and predictive values are obtained and stored. A timestamp indicating a time when each actual value or predictive value is obtained is generated and stored. The actual values and the predictive values are processed to provide an output value. | 10-13-2011 |
20110252151 | MOBILITY IN PEER-TO-PEER COMMUNICATIONS - A method for mobility in peer to peer communication for a first peer, comprising registering a first Internet Protocol (IP) address and IP mobility method of the first peer with a P2P tracker, establishing a peer to peer (P2P) connection with a second peer, changing locations and obtaining a second IP address, registering the second IP address of the first peer with the P2P tracker via IP mobility method, and transmitting information to the second peer in the P2P communication. | 10-13-2011 |
20120093134 | METHOD AND APPARATUS FOR EXCHANGING CONTROL OF A TRANSMISSION OPPORTUNITY - Methods and apparatus are disclosed. A method implemented in a wireless transmit/receive unit (WTRU) includes receiving a packet from a first other WTRU during a transmission opportunity (TxOP) associated with the first other WTRU and forwarding the packet to a second other WTRU during a remaining portion of the TxOP. | 04-19-2012 |
20120094681 | SERVICE-BASED APPROACH TO CHANNEL SELECTION AND NETWORK CONFIGURATION FOR TELEVISION WHITE SPACE NETWORKS - A method for managing channel selection in a dynamic spectrum management network includes receiving a spectrum allocation request; based on the source of the spectrum allocation request, checking for available channels; based on the source of the spectrum allocation request, collecting sensing and usage data for the available channels; providing the channel usage data to an entity that transmitted the spectrum allocation request. | 04-19-2012 |
20120178407 | SUPPORTING EMERGENCY CALLS ON A WIRELESS LOCAL AREA NETWORK - A method and device may be used for selecting a network for initiating an emergency call. The network selection may be based on stored information and/or a network connection status. The stored information may include a network priority for placing the emergency call. | 07-12-2012 |
20120230235 | GENERIC PACKET FILTERING - Embodiments contemplate one or more techniques for packet filtering. One or more embodiments may apply specific routing and/or forwarding rules on some or each packet when a device has one or more, or multiple, interfaces. Contemplated filtering techniques may be implemented in a module and/or without modifying an IP stack. The contemplated packet filtering techniques may apply to a terminal in uplink and/or downlink as well as to any network node. An incoming packet table may be created using 5-tuple, 6-tuple, and/or tags, among other mechanisms, to support incoming and/or outgoing packet filtering. | 09-13-2012 |
20120275323 | SCALABLE POLICY-CONTROLLED PACKET INSPECTION SYSTEMS AND METHODS FOR ADVANCED APPLICATION INTERFACE - Systems, methods, and instrumentalities are disclosed to determine quality of service information. A device, such as a user equipment (UE), may receive a policy. The policy may indicate a level of inspection relating to application identification for a session. The device may receive information associated with the session. For example, the information may include application provided information, packet data, operating system provided information, etc. The device may perform an inspection of the received information at the level indicated by the policy. The device may perform the inspection in order to identify an application associated with the session. | 11-01-2012 |
20120287906 | METHOD AND APPARATUS FOR IDENTIFYING MOBILE NETWORK PROTOCOL CAPABILITIES - A method and apparatus for improving handover in an IEEE 802.21 compliant communication network. A query is transmitted from a wireless transmit/receive unit (WTRU) to a media independent handover (MIH) server (MIHS). The WTRU includes a target point of attachment (PoA) and/or a preferred mobile inter protocol (MIP) method. The WTRU receives a response from the MIHS indicating the MIP method supported by the target PoA. Based on the received response, the WTRU may make an informed decision regarding handover. | 11-15-2012 |
20130163578 | METHOD AND APPARATUS OF ENABLING MULTI BAND TRANSMISSION - A method and apparatus for enabling multi-band transmission includes receiving a beacon on a first radio band and receiving the beacon on a second radio band. The beacon includes synchronization information for transmission on the first and second radio bands. | 06-27-2013 |
20130165054 | METHOD AND APPARATUS FOR MEASURING INTERFERENCE IN WIRELESS STATIONS - A method for use in a station of measuring radio frequency (RF) interference is presented. An average noise power indicator of the STA (STA_ANPI) is determined. A rate of change of the STA_ANPI is monitored to determine an RF interference metric. The RF interference metric is transmitted to another network entity, whereby the another network entity is enabled to perform load balancing based on the RF interference metric. | 06-27-2013 |
20130215782 | MEDIA INDEPENDENT MULTI-RAT FUNCTION IN A CONVERGED DEVICE - A communication device facilitates a multiple radio access technology (multi-RAT) mesh network and includes a processor that executes a media independent mesh function (MIMF), the MIMF configured to exchange media independent mesh information between peer mesh entities. At least two physical network links of the communication device support different radio access technologies (RATs). The MIMF is further configured to determine a RAT-agnostic link quality estimate for a signal routing, to selectively activate or deactivate each RAT-based physical network link to conserve power and control bandwidth; and to determine a multi-RAT mesh capability of a peer device. | 08-22-2013 |
20130230021 | METHOD AND APPARATUS FOR SUPPORTING DYNAMIC AND DISTRIBUTED MOBILITY MANAGEMENT - A method and apparatus are described for supporting dynamic and distributed mobility management (DMM). A wireless transmit/receive unit (WTRU) may attach to a first distributed gateway (D-GW), and configure a first Internet protocol (IP) address based on a prefix locally provided by the first D-GW. The WTRU may move and attach to a second D-GW while carrying out an on-going communication session with a correspondent node (CN). The WTRU may configure a second IP address based on a prefix provided by the second D-GW. The WTRU may use the first IP address for carrying out the on-going session and use the second IP address for a new communication session. | 09-05-2013 |
20130230036 | DEVICES AND METHODS FOR PRE-ASSOCIATION DISCOVERY IN COMMUNICATION NETWORKS - Wireless transmit and receive units (WTRUs) and methods for pre-association discovery (PAD) are disclosed. The methods may include obtaining an IP address to communicate with a wireless local area network (WLAN) before associating with the WLAN for the purpose of performing PAD. The methods may include communicating with a remote information server (IS) by sending messages to the WLAN using an L2 address and receiving responses from the IS through the WLAN. The methods may include receiving a message including a source IP address from an unassociated WTRU and restricting the use of the source IP address by the unassociated WTRU. The methods may include receiving a PAD request from a WTRU and relaying messages between the WTRU and a remote IS for PAD information exchange. The WTRU may not have an IP address for use with the WLAN and the WTRU may not be associated with the WLAN. | 09-05-2013 |
20130231121 | TELEVISION BAND (TVBD) CHANNEL QUIETING ACROSS DIVERSE RADIO ACCESS TECHNOLOGIES - A method and system is disclosed for communicating data using diverse radio access technologies (RATs) in a wireless communication system. A wireless transmit/receive unit (WTRU) may transmit data over a first channel using a first radio access technology (RAT) and a network node may receive information that indicates that the WTRU is operating on the first channel using the first RAT. The network node may determine, based on the RAT being used by the WTRU, that the WTRU should move to a second channel prior to a quiet period on the first channel. The network node may transmit a first command to the WTRU that indicates that the WTRU should move to the second channel. The WTRU may move from the first channel to the second channel in response to receiving the first command and the WTRU may transmit data over the second channel using the first RAT. | 09-05-2013 |
20130242945 | METHOD AND APPARATUS FOR IDENTIFYING MOBILE NETWORK PROTOCOL CAPABILITIES - A method and apparatus for improving handover in an IEEE 802.21 compliant communication network. A query is transmitted from a wireless transmit/receive unit (WTRU) to a media independent handover (MIH) server (MIHS). The WTRU includes a target point of attachment (PoA) and/or a preferred mobile inter protocol (MIP) method. The WTRU receives a response from the MIHS indicating the MIP method supported by the target PoA. Based on the received response, the WTRU may make an informed decision regarding handover. | 09-19-2013 |
20130288668 | METHOD AND APPARATUS FOR SUPPORTING PROXIMITY DISCOVERY PROCEDURES - A method and apparatus are described for supporting a two-stage device-to-device (D2D) discovery using a D2D interworking function (IWF). A D2D IWF component may be configured to perform mapping between an application running on an application server and a third generation partnership project (3GPP) network, and provide a set of application programming interfaces (APIs) to allow discovery to be provided as a service to D2D applications. An application identifier may be mapped to a 3GPP identifier. Further, a method and apparatus are described for performing client-server discovery. A first wireless transmit/receive unit (WTRU) may be configured for a listen-only operation, and a second WTRU may be configured to transmit beacons. The first and second WTRUs may perform a radio access network (RAN) discovery procedure at an access stratum (AS) layer. A method and apparatus for performing charging for D2D service using a D2D IWF are also described. | 10-31-2013 |
20140004871 | SYSTEM AND METHOD FOR DETERMINING AIR INTERFACE INFORMATION FOR RADIO RESOURCE MANAGEMENT IN WIRELESS COMMUNICATIONS | 01-02-2014 |
20140022947 | HIGH-THROUGHPUT CHANNEL OPERATION IN A MESH WIRELESS LOCAL AREA NETWORK - High throughput channel operation in a mesh wireless local area network (WLAN) is disclosed. A mesh network comprises a plurality of mesh points and a network management entity (NME). The NME is configured to retrieve capability and configuration data from the mesh points. The NME configures at least one mesh point with respect to IEEE 802.11n channelization and legacy protection mode based on the capability and configuration data. | 01-23-2014 |
20140153395 | USER EQUIPMENT IN A CONGESTION CONTROLLED CDMA SYSTEM - A system for controlling congestion in a code division multiple access system with multi-user detection capabilities is disclosed. The system includes at least one user equipment, a base station, and a radio network controller. Each user equipment includes a receiver having multi-user detection capabilities. The base station includes a receiver having multi-user detection capabilities, an intra-cell interference measuring device, and an inter-cell interference measuring device. The radio network controller includes a radio resource management device configured to control congestion based on measurements taken by the base station. | 06-05-2014 |
20140254572 | METHOD AND APPARATUS FOR MANAGING WIRELESS COMMUNICATION NETWORK RADIO RESOURCES - A method and apparatus for managing radio resources in one or more wireless communication networks. At least one radio resource manager (RRM) is provided within a network node, or as an independent entity. The RRM monitors performance on wireless communication links of the network(s) and interacts with nodes associated with those links to change the configuration on a particular wireless communication link if its performance (i.e., quality) falls below an established threshold. Information regarding current resource usage of the network is sent to the RRM by the nodes. Each of the nodes may send a quality report to the RRM including wireless communication link quality measurements and performance statistics. Alternatively, the RRM may perform the wireless communication link quality measurements. The RRM facilitates the broadcasting of information regarding current resource usage of one network to other networks to avoid collisions and interference. | 09-11-2014 |
20150044984 | METHOD AND APPARATUS TO DELIVER PUBLIC WARNING MESSAGES - A method and apparatus for a wireless transmit receive unit (WTRU) to receive an emergency situation notification. The method and apparatus include the WTRU receiving a paging message with an emergency situation notification, and the WTRU receiving scheduling information in a system information block. | 02-12-2015 |
20150071243 | METHOD FOR PERFORMING WIRELESS SWITCHING - A wireless communication system includes an infrastructure device for transmitting and receiving communications to and from a plurality of wireless user terminals. Each wireless user terminal includes a receiver and a controller that receives a plurality of orthogonal frequency division multiplexing (OFDM) signals on a first carrier frequency of a downlink. Each of the plurality of OFDM signals includes carrier frequency assignment information indicating a carrier frequency to transmit uplink data and spatial pattern information indicating a spatial pattern. In response to the carrier frequency assignment information of each of the plurality of OFDM signals, a transmitter and the controller of the wireless user terminal transmit a plurality of uplink signals. Each of the plurality of uplink signals are transmitted on the indicated carrier frequency and using the indicated spatial pattern. | 03-12-2015 |