| Patent application number | Description | Published |
|---|
| 20080209070 | ROUTING DATA IN A CLUSTER - Various techniques for routing data through a cluster are disclosed. The cluster includes a number of nodes that support communications by an access terminal. A node may be configured to use an identifier assigned to an access terminal to route data associated with the access terminal to another node in the cluster. The identifier is assigned by any node in the cluster. | 08-28-2008 |
| 20080247311 | SIGNALING IN A CLUSTER - Various techniques for signaling in a cluster are disclosed. The cluster includes a number of nodes that support communications by an apparatus. The apparatus may be configured to support a wireless connection with a first node in the cluster. The apparatus may be further configured to support a first control flow with the first node. The apparatus may be further configured to support a second control flow, through the first node, with a second node in the cluster. The first and second control flows include a plurality of frames each having a field and content, and wherein the field in each of the frames identifies whether the content in that frame is part of the first or second control flow. | 10-09-2008 |
| 20080304461 | SYSTEM AND METHOD FOR MULTI-NETWORK COVERAGE - A system and method are provided for a multi-network wireless communications access terminal (AT) to access multi-network coverage. The method registers a multi-network AT in a first communications network. In response to registering with the first network, the AT receives information via the first network that is required for accessing a second communications network (e.g., an IEEE 802.20 or 1xEV-DO network). The AT obtains services accessed via the second network, in response to the access information received via the first network. For example, the second network access information may be system information, channel information, or access point parameters. The AT retains the option of obtaining services accessed via the first network if the second network cannot be accessing the second network. | 12-11-2008 |
| 20090122782 | SYNCHRONIZATION OF WIRELESS NODES - A first wireless node may synchronize its timeslots with the timeslots of a second wireless node that was previously transmitting and receiving data in an asynchronous manner with respect to the timeslots of the first wireless node. By synchronizing timeslots, the wireless nodes may avoid interference that may otherwise occur if the wireless nodes operate in an asynchronous manner. A wireless node shares its timing information with other wireless nodes by repeatedly transmitting timing reference signals in conjunction with a synchronization metric that defines the relative priority of the timing reference. In the event a wireless node does not receive a GPS-based timing reference, the wireless node may synchronize to a timing reference based on the parameters of the synchronization metric of that timing reference. In the event a wireless node does not receive any timing references, the wireless node may define and advertise it's a timing reference and associated synchronization metric. To avoid synchronization race conditions, the synchronization metrics may be defined such that wireless nodes that have different timing references will advertise different synchronization metrics. | 05-14-2009 |
| 20090161636 | FLEXIBLE CONTROL CHANNELS FOR UNPLANNED WIRELESS NETWORKS - A wireless node configured to communicate with a remote node using a timeslot structure. The timeslot structure includes a plurality of data channels and a plurality of control channels, wherein each of the control channels comprises a plurality of control units. The wireless node is further configured to assign any one of a plurality of control messages for the data channels to any one of the control units. | 06-25-2009 |
| 20090175324 | DYNAMIC INTERFERENCE CONTROL IN A WIRELESS COMMUNICATION NETWORK - A method and apparatus for dynamic interference management is disclosed. A frequency channel is partitioned into a plurality of groups. Two or more groups are assigned weights reflecting degrees of disadvantage of a node. Each group is further partitioned into a plurality of tones. A node experiencing interference determines a group, selects a tone within the group, and transmits a wireless signal using the selected tone. A receiving node receives a plurality of tones including the selected tone, identifies active tones from the received tones, and determines a response based on the weights of the active tones. | 07-09-2009 |
| 20090191817 | Adaptive transmission of resource utilization messages based on throughput - An adaptive scheme controls the transmission of interference management messages by wireless nodes. For example, the adaptive scheme may be used to determine whether and/or how to transmit resource utilization messages. Such a determination may be based on, for example, comparison of a quality of service threshold with a current quality of service level associated with received data. A quality of service threshold may be adapted based on the effect of previously transmitted resource utilization messages. A quality of service threshold for a given wireless node may be adapted based on the frequency at which the wireless node transmits resource utilization messages. A quality of service threshold for a given wireless node may be adapted based on information received from another wireless node. An adaptation scheme also may depend on the type of traffic received by a given wireless node. A quality of service threshold also may be adapted based on throughput information. | 07-30-2009 |
| 20090191890 | ADAPTIVE TRANSMISSION OF RESOURCE UTILIZATION MESSAGES - An adaptive scheme controls the transmission of interference management messages by wireless nodes. For example, the adaptive scheme may be used to determine whether and/or how to transmit resource utilization messages. Such a determination may be based on, for example, comparison of a quality of service threshold with a current quality of service level associated with received data. A quality of service threshold may be adapted based on the effect of previously transmitted resource utilization messages. A quality of service threshold for a given wireless node may be adapted based on the frequency at which the wireless node transmits resource utilization messages. A quality of service threshold for a given wireless node may be adapted based on information received from another wireless node. An adaptation scheme also may depend on the type of traffic received by a given wireless node. A quality of service threshold also may be adapted based on throughput information. | 07-30-2009 |
| 20090203320 | ASYNCHRONOUS INTERFERENCE MANAGEMENT BASED ON TIMESLOT OVERLAP - Interference management may involve the transmission of interference management messages by wireless nodes that are experiencing interference and appropriate responses by potential interferers that receive the interference management messages. Upon detection of interfering signals, a wireless node may determine whether the signals are from a synchronous interferer or an asynchronous interferer. Based on this determination, the wireless node may use different types of signals to manage the different types of interference. In some aspects, asynchronous interference management may involve backing-off in frequency and/or in time in response to interference signals. Asynchronous interference management may involve transmitting back-off beacons to clear potential interferers from a given carrier. Here, the transmission of beacons by a wireless node may be metered to facilitate fair sharing of communication resources. | 08-13-2009 |
| 20090203322 | ASYNCHRONOUS INTERFERENCE MANAGEMENT - Interference management may involve the transmission of interference management messages by wireless nodes that are experiencing interference and appropriate responses by potential interferers that receive the interference management messages. Upon detection of interfering signals, a wireless node may determine whether the signals are from a synchronous interferer or an asynchronous interferer. Based on this determination, the wireless node may use different types of signals to manage the different types of interference. In some aspects, asynchronous interference management may involve backing-off in frequency and/or in time in response to interference signals. Asynchronous interference management may involve transmitting back-off beacons to clear potential interferers from a given carrier. Here, the transmission of beacons by a wireless node may be metered to facilitate fair sharing of communication resources. | 08-13-2009 |
| 20090203372 | SYNCHRONOUS AND ASYNCHRONOUS INTERFERENCE MANAGEMENT - Interference management may involve the transmission of interference management messages by wireless nodes that are experiencing interference and appropriate responses by potential interferers that receive the interference management messages. Upon detection of interfering signals, a wireless node may determine whether the signals are from a synchronous interferer or an asynchronous interferer. Based on this determination, the wireless node may use different types of signals to manage the different types of interference. In some aspects, asynchronous interference management may involve backing-off in frequency and/or in time in response to interference signals. Asynchronous interference management may involve transmitting back-off beacons to clear potential interferers from a given carrier. Here, the transmission of beacons by a wireless node may be metered to facilitate fair sharing of communication resources. | 08-13-2009 |
| 20090232115 | SUPPORTING COMMUNICATIONS IN A WIRELESS NETWORK USING AN IP ADDRESS - An apparatus for wireless communications and method for the same are provided. The apparatus is configured receive an identifier associated with a first node, determine an IP address of the first node from the identifier, and use the IP address to communicate data with the first node through a second node, wherein the data relates to managing air link resources of the first node. | 09-17-2009 |
| 20090257358 | METHOD AND APPARATUS FOR CARRIER IDENTITY DETERMINATION IN MULTI-CARRIER COMMUNICATION SYSTEMS - Systems and methods are described that facilitate the determination and request of resources a node may wish to reserve. The resources include a plurality of carriers that are shared with other nodes. In an approach, the node determines a condition related to the plurality of carriers; creates an ordering of the plurality of resources; and transmits a resource utilization message (RUM) for one or more of the plurality of resources based on the ordering and the condition. | 10-15-2009 |
| 20090257405 | METHOD AND APPARATUS FOR CARRIER SELECTION IN MULTI-CARRIER COMMUNICATION SYSTEMS - Systems and methods are described that facilitate the determination and request of resources a node may wish to reserve. The resources include a plurality of carriers that are shared with other nodes. In an approach, the node determines a condition related to a plurality of resources; identify a desired amount of resources from the plurality of resources based on the condition; and transmit a resource utilization message (RUM) for at least one of the plurality of resources based on the desired amount of resources. | 10-15-2009 |
| 20090285119 | INFRASTRUCTURE ASSISTED DISCOVERY IN A WIRELESS PEER-TO-PEER NETWORK - Apparatuses and methods are disclosed for infrastructure assisted discovery in wireless peer-to-peer networks. Various discovery procedures may be implemented where a first node supports discovery of other nodes for a second node. | 11-19-2009 |
| 20090287827 | MANAGING DISCOVERY IN A WIRELESS PEER-TO-PEER NETWORK - Apparatuses and methods are disclosed for managing discovery in wireless peer-to-peer networks. Various discovery procedures may be implemented by supporting a broadcast of a plurality of discovery signals spaced apart in time by silent periods from a peer node and changing the duration of at least one of the silent periods. | 11-19-2009 |
| 20090323598 | METHOD AND APPARATUS FOR RESOURCE UTILIZATION MANAGEMENT IN A MULTI-CARRIER COMMUNICATIONS SYSTEM - Systems and methods are described that facilitate evaluating conditions of nodes (e.g., access points, access terminals, etc.) in a wireless communication environment having a plurality of carriers to determine a level of disadvantage for a given node relative to other nodes. The node may transmit a resource utilization message (RUM) that represents the level of disadvantage for the node and request other interference nodes to back off on one or more carriers. | 12-31-2009 |
| 20100027479 | TONE SELECTION IN COMMUNICATION NETWORKS - Tones within a channel can be selected randomly and/or based on orthogonal tone selection. Random selection can include selecting tones randomly from a fixed set, which is referred to as channelized tone selection. Channelized tone selection can be chosen if a critical tone exists. Random selection can also include selecting resources randomly from the total number of resources available, which is referred to as non-channelized tone selection. Orthogonal tone selection can be chosen to mitigate the probability of receiver desensitization and/or to attempt to mitigate interference. | 02-04-2010 |
| 20100054190 | MOBILE IP ADDRESSING - A system and method are provided for mobile Internet Protocol (IP) addressing, in a multi-mode wireless communications access terminal (AT). The method provides an AT with an IP address (ATA), and a care-of-address (CoA) in each of a plurality of networks. In one aspect, the AT selects a first network for transmission, from the plurality of networks. The AT sends an IP packet to a correspondent node (CN) via a first mobile node (MN) external device. Regardless of the network selected, the AT is able to use the ATA as a source address. Sending the IP packet to the CN may include creating a tunnel between the first MN and the HA. The IP packet is sent to the HA using the first CoA as a tunnel source address, and the HA sends the IP packet to the CN using the ATA as the source address. | 03-04-2010 |
| 20100110993 | SYSTEM AND METHOD FOR MULTI-NETWORK COVERAGE - A system and method are provided for a multi-network wireless communications access terminal (AT) to access multi-network coverage. The method registers a multi-network AT in a first communications network. In response to registering with the first network, the AT receives information via the first network that is required for accessing a second communications network (e.g., an IEEE 802.20 or 1xEV-DO network). The AT obtains services accessed via the second network, in response to the access information received via the first network. For example, the second network access information may be system information, channel information, or access point parameters. The AT retains the option of obtaining services accessed via the first network if the second network cannot be accessing the second network. | 05-06-2010 |
| 20100226276 | FLOW BASED FAIR SCHEDULING IN MULTI-HOP WIRELESS NETWORKS - Embodiments describe flow based fair scheduling in a wireless multi-hop network. The scheduling can be rate controlled multi-hop scheduling or power controlled multi-hop scheduling. The scheduling chosen is intended to provide maxmin fairness over all flows within the wireless network. | 09-09-2010 |
| 20100226317 | METHOD AND APPARATUS FOR TIMESLOT SWAPPING - All or a portion of a timeslot of a slotted communication system may be dynamically designated for transmitting or for receiving. For example, a timeslot originally designated for receiving information at a wireless node may be temporarily designated for transmitting information from the wireless node. Such a designation may be made to accommodate a temporary asymmetry in traffic flow between wireless nodes or may be made based on other criteria. In some aspects, a resource utilization messaging scheme may be employed to mitigate interference associated with the designation of timeslots for transmitting or receiving. | 09-09-2010 |
| 20100226335 | FLOW BASED FAIR SCHEDULING IN MULTI-HOP WIRELESS NETWORKS - Embodiments describe flow based fair scheduling in a wireless multi-hop network. The scheduling can be rate controlled multi-hop scheduling or power controlled multi-hop scheduling. The scheduling chosen is intended to provide maxmin fairness over all flows within the wireless network. | 09-09-2010 |
| 20100240373 | HYBRID CELL MANAGEMENT IN WIRELESS NETWORKS - Systems and methodologies are described that facilitate providing hybrid cell access points that can support closed subscriber groups (CSG) while providing at least a minimum level of service to wireless devices excluded from the CSG. Hybrid cell access points can allow non-member wireless devices to camp and receive paging signals. Upon receiving a request for resources from non-member wireless devices, hybrid cell access points can handover the non-member wireless devices to an access point that can serve the non-member wireless devices, provide a portion of resources compared to a disparate portion provided to member wireless devices, and/or the like. In addition, hybrid cell access points can vary levels of service and downlink transmission power to provide load balancing for access points. Varying levels of service and downlink transmission power can facilitate additional functionality, such as reducing transmission power to serve member devices while mitigating interference to non-member devices. | 09-23-2010 |
| 20100260096 | SPLIT-CELL RELAY APPLICATION PROTOCOL - Systems and methodologies are described that facilitate packet routing among relay eNBs in a wireless network. Packet data convergence protocol (PDCP) layer communications from a user equipment (UE) can terminate at a donor evolved Node B (eNB) and vice versa. In this regard, a relay application protocol (RAPP) layer is defined to transport application layer control data among relay eNBs to facilitate appropriate routing. RAPP layer messages can be similar to control messages at other application layers, such as S1-AP, X2, etc., while additionally including a relay UE identifier for routing the messages among relay eNBs. In addition, RAPP layer messages can exclude other parameters normally defined in other application layers to protect security and encryption/decryption details. | 10-14-2010 |
| 20100260097 | DEVICE MOBILITY FOR SPLIT-CELL RELAY NETWORKS - Systems and methodologies are described that facilitate supporting mobility for UEs and relay eNBs in split-cell relay configurations. Parameters regarding communicating with one or more UEs can be provided to disparate eNBs from a donor eNB to provide mobility for one or more of the UEs or a serving relay eNB. In addition, a donor eNB can request establishment of one or more radio bearers at a target relay eNB for continuing communications with one or more UEs. Moreover, a donor eNB can provide information regarding one or more core network bearers to a target donor eNB to facilitate establishing the core network bearers at the target donor eNB for communicating with the one or more UEs. Furthermore, uplink buffer contents from a relay eNB can be provided to a target donor eNB so communications from the one or more UEs can be continued by the target donor eNB. | 10-14-2010 |
| 20100260098 | HEADER COMPRESSION FOR IP RELAY NODES - Systems and methodologies are described that facilitate compressing headers for internet protocol (IP) relay nodes. In particular, a plurality of IP headers in a packet and at least one tunneling protocol header can be compressed to facilitate efficient communications of packets between IP relay nodes and/or a donor access point. In addition, IP relay nodes can be limited in a number of upstream bearers and can provide a greater number of downstream bearers. In this regard, the IP relay nodes can compress headers for upstream packets related to one or more downstream devices utilizing disparate context identifiers for the upstream packets. Thus, the upstream packets can be distinguished from each other while sent over the same upstream bearer. | 10-14-2010 |
| 20100260109 | OPTIMIZED INTER-ACCESS POINT PACKET ROUTING FOR IP RELAY NODES - Systems and methodologies are described that facilitate communicating inter-eNB packets among eNBs in a cluster implemented by a donor eNB. A relay eNB can report an address received from a gateway upstream to one or more eNBs. The one or more eNBs can store the address along with one or more parameters for communicating with the relay eNB. In this regard, disparate eNBs can communicate with the relay eNB by specifying the address in an inter-eNB packet, and upstream eNBs can route the inter-eNB packet to the relay eNB based at least in part on locating the address in a routing table. In this regard, the inter-eNB packets need not pass through the gateway to reach the relay eNB. | 10-14-2010 |
| 20100260126 | SPLIT-CELL RELAY PACKET ROUTING - Systems and methodologies are described that facilitate packet routing among relay eNBs in a wireless network. Packet data convergence protocol (PDCP) layer communications from a user equipment (UE) can terminate at a donor evolved Node B (eNB) and vice versa. In this regard, relay eNBs can forward PDCP layer communications over a routing protocol without locally processing the layer. The relay eNBs can, however, retrieve one or more parameters from a header of the PDCP layer for feedback to the donor eNB to assist in flow control, sequence number status transfer, and/or the like. In addition, routing identifier can be utilized to determine relay eNBs for receiving the packets. The routing identifier can additionally include an identifier of a radio bearer of the relay eNB communicating with the UE over which the PDCP layer communications are to be transmitted. | 10-14-2010 |
| 20100260129 | QOS MAPPING FOR RELAY NODES - Systems and methodologies are described that facilitate packet routing among relay nodes in a wireless network. Bearer quality of service (QoS) mapping is provided for internet protocol (IP) relays by utilizing differentiated services (DiffServ) code point (DSCP) values to determine a bearer for communicating related packets. In addition, SDF filtering at a gateway node can be modified to route packets over certain tunnels to provide QoS for the packets. | 10-14-2010 |
| 20100265827 | SYSTEMS, METHODS AND DEVICES TO ENABLE MANAGEMENT OF WIRELESS NETWORK RESOURCES - The present disclosure provides systems, methods and devices for selectively adjusting a quality of service QoS of communication between a wireless access point and a UE based on both a value indicative of system resources and closed subscriber group (CSG) subscription data, such that a member has priority access to system resources over a non-member. The systems, methods and devices described herein allow an access point operating in a hybrid mode to discriminate between CSG members and non-members, without having to terminate communication links in order to provide CSG members with particular QoS levels. In some embodiments, non-members can maintain or establish new communication links with lower QoS levels in order to utilize unused and available capacity, thereby increasing the utilization of system resources available through femto nodes operating in a hybrid mode. | 10-21-2010 |
| 20100272013 | ESTABLISHING PACKET DATA NETWORK CONNECTIVITY FOR LOCAL INTERNET PROTOCOL ACCESS TRAFFIC - Providing for establishment of local Internet Protocol access (LIPA) for cellular communication is provided herein. According to particular aspects of the subject disclosure, provided are mechanisms to identify a request to establish a packet network connection as a request for a LIPA context. Once identified, a local gateway associated with the UE or with a subscriber-deployed base station is identified, and a packet context is established to support LIPA traffic for the UE. Additional mechanisms support UE mobility from one base station to another, including identifying and terminating inactive LIPA contexts. Further, a UE is described that can recognize and facilitate the establishment of a LIPA context for applications executing at the UE. | 10-28-2010 |
| 20100278147 | ACCESS MODE-BASED ACCESS CONTROL - Access control for an access point (e.g., a cell of the access point) may be based on an access mode associated with the access point. For example, depending on the access mode, access control may involve performing a membership check for the access point. Such a membership check may be performed at a network entity, a source access point, or some other suitable location in a network. In some aspects, access control may involve performing a membership check for an access point in conjunction with a context fetch procedure. Such a procedure may be performed, for example, when an access terminal arrives at the access point after experiencing RLF at another access point. | 11-04-2010 |
| 20100279687 | ACCESS MODE-BASED ACCESS CONTROL - Access control for an access point (e.g., a cell of the access point) may be based on an access mode associated with the access point. For example, depending on the access mode, access control may involve performing a membership check for the access point. Such a membership check may be performed at a network entity, a source access point, or some other suitable location in a network. In some aspects, access control may involve performing a membership check for an access point in conjunction with a context fetch procedure. Such a procedure may be performed, for example, when an access terminal arrives at the access point after experiencing RLF at another access point. | 11-04-2010 |
| 20100284386 | LOCAL INTERNET PROTOCOL ACCESS CAPABILITY INDICATION - Aspects describe indicating to a mobile station whether an access point supports local Internet Protocol (IP) access. The indication can be sent through utilization of common signaling, which allows the mobile station to have information about the local IP access availability before connecting to the access point. The indication can be sent through utilization of dedicated signaling, which allows the mobile station to find out about availability of local IP access after the mobile station connects to the access point. | 11-11-2010 |
| 20100284387 | PAGING FOR LOCAL IP ACCESS PACKETS - Local IP access paging schemes facilitate paging of an access terminal when packets destined for the access terminal are received via local IP access. In some implementations, a local entity acquires information that enables local paging of the access terminal by sniffing messages passing through the local entity. In some implementations, a local entity sends a packet or message to cause the core network to page an access terminal when a local IP access packet destined for the access terminal arrives at the local entity. | 11-11-2010 |
| 20110105065 | DYNAMIC INTERFERENCE CONTROL IN A WIRELESS COMMUNICATION NETWORK - A method and apparatus for dynamic interference management is disclosed. A frequency channel is partitioned into a plurality of groups. Two or more groups are assigned weights reflecting degrees of disadvantage of a node. Each group is further partitioned into a plurality of tones. A node experiencing interference determines a group, selects a tone within the group, and transmits a wireless signal using the selected tone. A receiving node receives a plurality of tones including the selected tone, identifies active tones from the received tones, and determines a response based on the weights of the active tones. | 05-05-2011 |
