Patent application number | Description | Published |
20090086672 | EQUIVALENT HOME ID FOR MOBILE COMMUNICATIONS - Facilitating user terminal (UT) access to wireless networks having disparate types of base stations (BSs) is described herein. By way of example, a distinct identifier (ID) can be reserved for a particular type of network access point (e.g. restricted or general access, full or fractional re-use, transmit power, cell size, etc.). The distinct ID can be broadcast by such access points, identifying the access point type. In some aspects, the distinct ID can be unicast to a terminal that is within a predetermined region of the network. Thus, at least within such region, the terminal can be directed to search for or handoff to a preferred type of access point (such as a home Node B). In such aspects, by providing regional-specific access, the subject disclosure can significantly reduce overhead signaling outside a home region where a home or preferred access point is expected to be found. | 04-02-2009 |
20090088131 | MOBILE ACCESS IN A DIVERSE ACCESS POINT NETWORK - Facilitating user terminal (UT) access to wireless networks having base stations (BSs) of disparate access types is described herein. In some aspects, BS parameterization is provided to facilitate search and/or access to distinct types of network BSs. For instance, parameters can modify a likelihood of identifying or remaining coupled to restricted access (RA) BSs in a home Node B (HNB) deployment. In other aspects of the subject disclosure, a PLMN ID reserved for HNBs is provided comprising multiple region IDs. Where a UT identifies a home region, HNBs can be given preference over macro BSs. Additionally, the UT can keep track of HNBs and HNB regions that reject access to the UT, and implement a delay time to mitigate rapid signaling to foreign HNBs in a dense HNB deployment. Accordingly, the subject disclosure provides for more efficient UT access in heterogeneous access type networks. | 04-02-2009 |
20090132674 | RESOLVING NODE IDENTIFIER CONFUSION - Confusion resulting from assigning the same node identifier to multiple nodes is resolved through the use of confusion detection techniques and the use of unique identifiers for the nodes. In some aspects an access point and/or an access terminal may perform operations relating to detecting confusion and/or providing a unique identifier to resolve confusion. | 05-21-2009 |
20090132675 | USING IDENTIFIERS TO ESTABLISH COMMUNICATION - Confusion resulting from assigning the same node identifier to multiple nodes is resolved through the use of confusion detection techniques and the use of unique identifiers for the nodes. In some aspects an access point and/or an access terminal may perform operations relating to detecting confusion and/or providing a unique identifier to resolve confusion. | 05-21-2009 |
20090137249 | FAVORING ACCESS POINTS IN WIRELESS COMMUNICATIONS - Systems and methodologies are described that facilitate applying offsets and/or selectable hysteresis values to favor access points in cell reselection. In measuring and ranking surrounding access points in reselection, offsets can be applied to favorable access points to facilitate cell reselection thereto. The offset can positively affect measurements, and thus ranking as well, in some cases. Negative offsets can also be applied to lower measurements (and thus ranking) of some access points. Moreover, hysteresis values can be applied in measuring current cells to prevent frequent reselection. The hysteresis values can be selected based on a type of the current cell or related access point to expand the coverage area where desired. Thus, where the current access point is favorable, a larger hysteresis can be added to measurements related to the current access point. | 05-28-2009 |
20100029274 | SYSTEM AND METHOD FOR CELL SEARCH AND SELECTION IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate improved cell search and selection in a wireless communication system. For example, a terminal as described herein can utilize one or more Closed Subscriber Group (CSG)-specific offset and/or hysteresis parameters as described herein to increase the amount of time on which the terminal is allowed to camp on a desirable cell. Additionally, specialized reselection timing can be employed as described herein to increase a delay associated with selecting a Home Node B (HNB) or Home Evolved Node B (HeNB) cell, thereby reducing power consumption associated with rapid cell reselection operations in a densely populated network environment. Further, a two-step reselection process can be performed as described herein in the context of selecting a frequency for cell reselection, thereby mitigating the effects of rapid reselection between cells and/or frequencies due to CSG cell prioritization. | 02-04-2010 |
20100034094 | ACCESS TERMINAL CAPABILITY UPDATE - Systems and methodologies are described that facilitate updating an access terminal's capability information in a wireless access node. Upon detecting a change in its capabilities, the access terminal transmits a message to the access node indicating the change. The message triggers the access node to determine the capability change associated with the access terminal, and to update its records to indicate the new capability information. | 02-11-2010 |
20100034160 | UPDATING FREQUENCY PRIORITY LISTS IN WIRELESS COMMUNICATIONS - Systems and methodologies are described that facilitate communicating frequency priority lists to wireless devices during active mode communication. The lists can be communicated according to a timer, as new lists (or updates thereto) are generated or obtained, and/or the like. In this regard, devices can receive frequency priority lists before connection to an access point is released or lost. Upon connection release or link failure, devices can use the frequency priority list to monitor frequencies for receiving paging signals. In addition, the frequency priority lists can include layer types corresponding to the frequencies that specify types of access points related to the frequencies. Certain frequencies can be avoided or monitored for paging signals according to the layer types. | 02-11-2010 |
20100035615 | INTRA-FREQUENCY CELL RESELECTION RESTRICTION IN WIRELESS COMMUNICATIONS - Systems and methodologies are described that facilitate utilizing reselection indicators in reselecting access points in wireless communications. In particular, an indicator can be provided relating to a restricted association access point that specifies whether intra-frequency reselection is allowed. If so, a mobile device receiving the indicator can reselect to other access points, to which it has access, operating in a similar frequency. If not, the mobile device can evaluate access points in other frequencies so as not to cause substantial interference to the restricted association access point. In addition, a predicted level of interference caused by communicating with an intra-frequency access point can be computed and evaluated to override the reselection indicator, in some cases. Thus, a restricted association access point can control reselection for some devices to mitigate interference while allowing the devices to override prohibitive restricted access points. | 02-11-2010 |
20100080116 | RE-ESTABLISHING A RADIO RESOURCE CONTROL CONNECTION WITH A NON-PREPARED BASE STATION - A method for establishing a radio resource control connection is disclosed. A wireless communication device may establish a radio resource control connection with a first base station. The wireless communication device may send a message to a second base station that requests re-establishment of the radio resource control connection. The wireless communication device may receive a message from the second base station that initiates setup of a new radio resource control connection. | 04-01-2010 |
20100103845 | CELL RELAY MOBILITY PROCEDURES - Systems and methodologies are described that facilitate performing intra-cluster and inter-cluster reselection for relay eNBs. In intra-cluster reselection, a relay eNB can reselect a disparate relay eNB and indicate its identifier in a bearer list update message. The disparate relay eNB and upstream eNBs (including the donor eNB) can update routing tables based at least in part on the identifier. In addition, the relay eNB can provide identifiers of downstream relay eNBs to facilitate updating routing tables for those identifiers as well. In an inter-cluster reselection, relay eNBs can release connection to downstream relay eNBs and re-attach to a wireless network to receive an identifier from a new donor eNB in the new cluster. Alternatively, the relay eNB can request an identifier from the donor eNB during reselection, notify downstream relay eNBs of the reselection, and/or request identifiers for one or more downstream relay eNBs. | 04-29-2010 |
20100103857 | CELL RELAY NETWORK ATTACHMENT PROCEDURES - Systems and methodologies are described that facilitate attaching cell relays to a wireless network. During the attachment procedure, a relay eNB can request assignment of an identifier, or a portion thereof, from a donor eNB for subsequent packet routing to the relay eNB. This can occur through one or more intermediary relay eNBs, where present. Donor eNB can assign an identifier or portion thereof (or confirm/deny an explicit identifier request from the relay eNB) and can forward establishment information downstream to the relay eNB. Donor eNB and intermediary relay eNBs, where present, can store the identifier for subsequent use in routing packets to the relay eNB. The identifier can be a terminal endpoint identifier (TEID) utilized in a tunneling protocol, a relay identifier utilized in a relay protocol, and/or the like. | 04-29-2010 |
20100103861 | CELL RELAY PACKET ROUTING - Systems and methodologies are described that facilitate packet routing among relay eNBs in a wireless network. A donor eNB can create at least a portion of a tunnel endpoint identifier (TEID) for a relay eNB communicating with a UE or other device. In addition, the relay eNB communicating with the UE can create a portion of the TEID. Upon receiving packets with a TEID, the donor eNB can route the packets to downstream eNBs based on the portion of the TEID that it created. Other downstream eNBs can continue to route packets to next hop eNBs based on the portion of the TEID created by the donor eNB or the downstream eNBs themselves. The relay eNB communicating with the UE can route packets to the UE based on the portion of the TEID it created and/or the portion created by the donor eNB. | 04-29-2010 |
20100103862 | DEVICE ATTACHMENT AND BEARER ACTIVATION USING CELL RELAYS - Systems and methodologies are described that facilitate assigning TEIDs, or portions thereof, to UEs or other devices during network attachment and/or dedicated bearer activation using one or more cell relays. Relay eNBs can request bearer establishment from a UE, which can be based on receiving an attach accept from an upstream node during attachment for the UE, receiving a bearer setup request from the upstream node, and/or the like. Once a bearer establishment response is received from the UE, the relay eNBs can store a TEID relating to the bearer. This can be a TEID that is at least partially received in the attach accept or bearer setup message, generated for the UE upon receiving the bearer establishment response, and/or the like. The TEID, or portion thereof, can be utilized for subsequent packet routing to the UE through one or more cell relays. | 04-29-2010 |
20100103863 | BEARER QoS MAPPING FOR CELL RELAYS - Systems and methodologies are described that facilitate mapping multiple evolved packet system (EPS) bearers to a single relay eNB radio bearer. In particular, an upstream eNB can select a radio bearer of a downstream eNB for association to an EPS bearer; the selection can be based on a best effort match or substantially any logic. The upstream eNB can store an association between the radio bearer and EPS bearer for subsequent downstream packet routing. The upstream eNB can also provide an indication of the selected radio bearer to the downstream relay eNB to facilitate upstream packet routing therefrom. The upstream eNB can alternatively select the radio bearer of the downstream eNB for association to the EPS bearer based on a quality of service (QoS) class identifier (QCI) of the EPS bearer. | 04-29-2010 |
20100103864 | CELL RELAY PROTOCOL - Systems and methodologies are described that facilitate providing a relay protocol to facilitate communicating upper layer protocol data among relay and donor nodes. In particular, a donor node can create a relay protocol packet upon receiving data for a relay node from a core network. Donor node can indicate an assigned relay identifier in the relay protocol packet header to facilitate routing the packet among related downstream relay nodes to arrive at the appropriate relay node, which can process the upper layer protocol data. In addition, a relay node can formulate a relay protocol packet for communication to a donor node through zero or more intermediary upstream relay nodes. Similarly, the relay node can insert the assigned relay identifier in the header to allow the donor node to associate response or related packets from the core network with the relay node. | 04-29-2010 |
20100103865 | HEADER COMPRESSION FOR CELL RELAY COMMUNICATIONS - Systems and methodologies are described that facilitate compressing packet headers for cell relay communications. Since cell relays can support a number of evolved packet system (EPS) bearers over a given dedicated radio bearer (DRB), robust header compression (RoHC) can be multiplexed for communications to/from a given cell relay. Thus, an upstream node compressing one or more packet headers can indicate a RoHC context, which can be represented by a RoHC context identifier in a RoHC header. A receiving entity can decompress the headers based on determining the RoHC context. Alternatively, the RoHC context can be associated with an identifier of a related UE bearer such as a tunnel endpoint identifier (TEID), a relay identifier, and/or the like, that is received in a tunneling protocol header to facilitate packet routing. | 04-29-2010 |
20100110987 | SELECTION OF WIRELESS NETWORK IN CONJUNCTION WITH SELECTION OF A WIRELESS CELL SET - An access terminal may switch to a different mode of wireless network selection as a result of manual selection of a wireless cell set (e.g., a closed subscriber group) associated with one or more wireless cells. For example, if the user of an access terminal selects a closed subscriber group in a wireless network that is different than the current wireless network, the access terminal may enter a manual mode of wireless network selection, select the wireless network corresponding to the closed subscriber group, and register on a closed subscriber group cell in the selected wireless network. In addition, an access terminal may automatically switch to a different mode of wireless network selection (e.g., the prior mode) upon losing coverage of a wireless cell set. An access terminal may also automatically select a cell of a wireless cell set if the access terminal returns to a cell of the cell set within a defined period of time after losing coverage of the cell set. Furthermore, an access terminal may return to a prior wireless network upon losing coverage of a wireless cell set. | 05-06-2010 |
20100113020 | SWITCHING WIRELESS NETWORK SELECTION MODES IN CONJUNCTION WITH SELECTION OF A WIRELESS CELL SET - An access terminal may switch to a different mode of wireless network selection as a result of manual selection of a wireless cell set (e.g., a closed subscriber group) associated with one or more wireless cells. For example, if the user of an access terminal selects a closed subscriber group in a wireless network that is different than the current wireless network, the access terminal may enter a manual mode of wireless network selection, select the wireless network corresponding to the closed subscriber group, and register on a closed subscriber group cell in the selected wireless network. In addition, an access terminal may automatically switch to a different mode of wireless network selection (e.g., the prior mode) upon losing coverage of a wireless cell set. An access terminal may also automatically select a cell of a wireless cell set if the access terminal returns to a cell of the cell set within a defined period of time after losing coverage of the cell set. Furthermore, an access terminal may return to a prior wireless network upon losing coverage of a wireless cell set. | 05-06-2010 |
20100124172 | DECLARING RADIO LINK FAILURE BASED ON TARGET-SPECIFIC THRESHOLD - The number of handover-related failures that occur in a communication system may be reduced by taking target access point conditions into account when declaring radio link failure and/or by delaying certain handover operations. In some aspects, criteria for radio link failure detection and access terminal-controlled mobility may take into account access point parameters related to neighboring cells that may be available as mobility targets. For example, filtering mechanisms for detecting radio link failure based on radio layer problem reports may also take into account the availability of various neighbor access points and their measured signal strengths. In addition, a handover command may be sent earlier than in conventional systems (e.g., the handover command may be sent even though the target access point is weaker than the source access point) and include an indication that instructs the access terminal to delay handover until a specified condition is met. For example, handover may be delayed until the target access point becomes stronger than the source access point. | 05-20-2010 |
20100124173 | RADIO LINK FAILURE REPORTING - A communication node determines that radio link failure occurred during connected state mobility of an access terminal and reports the radio link failure to another communication node. For example, a target access point may determine that radio link failure occurred during handover of an access terminal and send a radio link failure report message to the access point that was previously serving the access terminal or to some other node (e.g., a network node). In the first case, the serving access point may adjust mobility parameters based on this radio link failure information and, optionally, other reported radio link failure information. In the second case, the other node may send a radio link failure report message to the serving access point, or the other node may adjust mobility parameters based on this radio link failure information (and, optionally, other reported radio link failure information) and send the adjusted mobility parameters to the serving access point. | 05-20-2010 |
20100124203 | CONDITIONAL ACCESS TERMINAL INITIATION OF DELAYED HANDOVER - The number of handover-related failures that occur in a communication system may be reduced by taking target access point conditions into account when declaring radio link failure and/or by delaying certain handover operations. In some aspects, criteria for radio link failure detection and access terminal-controlled mobility may take into account access point parameters related to neighboring cells that may be available as mobility targets. For example, filtering mechanisms for detecting radio link failure based on radio layer problem reports may also take into account the availability of various neighbor access points and their measured signal strengths. In addition, a handover command may be sent earlier than in conventional systems (e.g., the handover command may be sent even though the target access point is weaker than the source access point) and include an indication that instructs the access terminal to delay handover until a specified condition is met. For example, handover may be delayed until the target access point becomes stronger than the source access point. | 05-20-2010 |
20100124918 | MOBILITY MANAGEMENT BASED ON RADIO LINK FAILURE REPORTING - A communication node determines that radio link failure occurred during connected state mobility of an access terminal and reports the radio link failure to another communication node. For example, a target access point may determine that radio link failure occurred during handover of an access terminal and send a radio link failure report message to the access point that was previously serving the access terminal or to some other node (e.g., a network node). In the first case, the serving access point may adjust mobility parameters based on this radio link failure information and, optionally, other reported radio link failure information. In the second case, the other node may send a radio link failure report message to the serving access point, or the other node may adjust mobility parameters based on this radio link failure information (and, optionally, other reported radio link failure information) and send the adjusted mobility parameters to the serving access point. | 05-20-2010 |
20100189032 | FREQUENCY HOPPING IN A WIRELESS COMMUNICATION NETWORK - Techniques for performing frequency hopping in a wireless network are described. In an aspect, frequency hopping may be performed based on both cell identity (ID) and system time information. In one design, a user equipment (UE) may determine a cell ID of a cell and may obtain system time information for the cell. The UE may determine resources to use for transmission with frequency hopping based on the cell ID and the system time information. In one design, the UE may initialize a PN generator in each radio frame with an initial value determined based on the cell ID and a system frame number (SFN) for the radio frame. The UE may determine the resources to use for transmission based on a hopping function, a mirroring function, and a PN sequence from the PN generator. The UE may send a transmission on the resources to the cell. | 07-29-2010 |
20100232524 | METHOD AND APPARATUS FOR SYSTEM BANDWIDTH INDICATION - Techniques for conveying system bandwidths in a wireless communication system are described. In an aspect, system bandwidth information may be signaled to first user equipments (UEs) supporting a first set of system bandwidths and second UEs supporting a second set of system bandwidths. In one design, a base station may obtain and broadcast system bandwidth information indicating a first system bandwidth for the first UEs and a second system bandwidth for the second UEs. The first system bandwidth may be selected from the first set, and the second system bandwidth may be selected from the second set, which may be a superset of the first set. The system bandwidth information may include a first part and a second part. The first part may convey the first system bandwidth for the first UEs. The first and second parts may convey the second system bandwidth for the second UEs. | 09-16-2010 |
20110039576 | Enhanced Positioning Assistance Data For Reduced Signaling - Apparatus and methods for determining a location estimate of a mobile device based on an extended set of assistance data are presented. The extended assistance data includes assistance data for base stations, such as cellular base stations and access points, not expected to be viewable by the mobile device in a (current) first geographical area but expected to be viewable by the mobile device in a (future) second geographical area. By seeding the mobile device with assistance data expected to be useful in the future, the network reduces messaging between the network and mobile device and battery consumption by the mobile device. | 02-17-2011 |
20110039578 | ASSISTANCE DATA FOR POSITIONING IN MULTIPLE RADIO ACCESS TECHNOLOGIES - An apparatus and method for determining a position of a mobile station based on terrestrial assistance data from a first wireless network to which the mobile station is not attached. That is, the mobile station is able to receive terrestrial assistance from a first wireless network and use the terrestrial assistance data to obtain location information, such as timing measurements, from the first wireless network and determine its position while not attached to the first wireless network. The first wireless network may be a network to which the mobile station is subscribed and can attach. | 02-17-2011 |
20110098057 | METHOD AND APPARATUS FOR SUPPORTING POSITIONING FOR TERMINALS IN A WIRELESS NETWORK - Techniques for supporting positioning for terminals in a wireless network are described. In an aspect, positioning may be supported by a location server that can reside in different entities. In one design, the location server may obtain positioning information (e.g., measurements) for a target device via a common positioning protocol. The location server may use the common positioning protocol regardless of where it resides and may communicate with other entities via this protocol. The location server may determine location information (e.g., a location estimate) for the target device based on the positioning information. In another aspect, positioning may be supported by transporting multiple positioning messages together. In yet another aspect, positioning may be supported by transporting a positioning message containing multiple parts defined by different organizations. In yet another aspect, positioning may be supported with shared measurement data units and/or shared assistance data units that may be applicable for different positioning methods. | 04-28-2011 |
20110140846 | APPARATUS AND METHOD FOR NETWORK-INITIATED ATTACHMENT AND REGISTRATION-LESS PAGING - An apparatus and method for registration-less paging comprising establishing a mobile device identity for a mobile device in a wireless network; determining a time instance for the identified mobile device to listen to pages; sending a page from the wireless network to the identified mobile device during the determined time instance. In one example, the apparatus and method is for a network-initiated attach procedure comprising receiving a request to attach a mobile device in a wireless network; generating a paging message based on the request to attach the mobile device; sending a paging indicator to a mobile device based on the paging message during a time instance based on an agreed rule; and accepting an attach procedure from the mobile device based on the paging indicator. | 06-16-2011 |
20110190004 | Mobile Station Positioning Assistance With Local Mapping Data - Techniques are provided which may be implemented using various methods and/or apparatuses for use in providing positioning assistance data with local mapping data to mobile stations. For example, positioning assistance data may comprise and/or otherwise be based, at least in part, on local mapping data which may relate to a current location of the mobile station. Such positioning assistance data may, for example, be provided to a mobile station by a first server within a cellular network. | 08-04-2011 |
20120190373 | METHOD AND APPARATUS FOR DETERMINING TIMING INFORMATION FOR CELLS - Techniques for determining timing information for cells are disclosed. A user equipment (UE) may communicate with a serving cell and may need to make measurements of other cells, e.g., to support positioning of the UE. Each cell may transmit reference signals based on its timing. Different cells may operate asynchronously or with unknown timing. The UE may send a request for measurement gaps to the serving cell and may include timing information in the request. The timing information may (directly or indirectly) convey relative timing between the serving cell and a reference cell. The serving cell may determine measurement gaps at the proper time for other cells based on the timing information from the UE and may avoid scheduling the UE for data transmission during the measurement gaps. The UE may make measurements of other cells during the measurement gaps, without losing any data from the serving cell. | 07-26-2012 |
20120195249 | METHOD AND APPARATUS FOR SERVICE CAPABILITY MODIFICATION - A method includes determining, at a receiving station, a modified capability for maintaining reception of a service while supporting a broadcast service. The modified capability is a modification of a capability associated with the service. The method further includes communicating an indication of the modified capability to a transmitting station. | 08-02-2012 |
20140378086 | REESTABLISHMENT PROCEDURE FOR AN EMERGENCY CALL - Traditional rules that apply to cell selection are overridden to allow cell selection on an acceptable cell, in addition to cell selection on a suitable cell. Once a mobile device acquires service on an acceptable cell, mobile device can inform network of the emergency call in progress or initiation of an emergency call, which allows network to perform necessary actions to support the emergency call during establishment/reestablishment. | 12-25-2014 |
20140378087 | REESTABLISHMENT PROCEDURE FOR AN EMERGENCY CALL - Traditional rules that apply to cell selection are overridden to allow cell selection on an acceptable cell, in addition to cell selection on a suitable cell. Once a mobile device acquires service on an acceptable cell, mobile device can inform network of the emergency call in progress or initiation of an emergency call, which allows network to perform necessary actions to support the emergency call during establishment/reestablishment. | 12-25-2014 |