Patent application number | Description | Published |
20080254812 | METHOD AND APPARATUS OF TRACKING AREA ALLOCATION - Systems and methodologies are described that facilitate camping load balancing utilizing a frequency attribute. In a tracking area update procedure, each tracking area confirmed to user equipment can include an attribute of preferred, non-preferred, or forbidden. Based on such attribute, the user equipment can camp or idle on a particular cell for a specific frequency or network. The user equipment can camp on a cell from a preferred tracking area unless the quality of cells from the preferred frequency or network drops under a minimum threshold. The systems and methodologies provide a unified framework for camping load balancing across different Radio Access Technologies (RATs) and an optimization for the relevant signaling. | 10-16-2008 |
20080310378 | SELECTIVE PHASE CONNECTION ESTABLISHMENT - Systems and methodologies are described that facilitate multiple-phase selective connection establishment in wireless communications networks. Radio resource control (RRC) layer communications can be instantiated between a mobile device and base station. Additional information can be required by a downstream network component regarding the mobile device. Accordingly, the RRC resources can be utilized to transmit the additional information from the mobile device to the network component to facilitate the multiple-phase establishment. This can be accomplished using non-access stratum (NAS) messages. Further, the information can relate to authorization, security re-configuration, context re-synchronization, an identity of the mobile device, and the like. | 12-18-2008 |
20080318546 | SECURITY ACTIVATION IN WIRELESS COMMUNICATIONS NETWORKS - Systems and methodologies are described that facilitate security activation within a specified security activation time. Thus, where handover occurs or is initiated within the activation time, security keys can be activated in such a way as to not be substantially affected by the handover. In one example, a handover time can be set to occur beyond the security activation time to ensure the security activation happens first. Additionally, a handover command can comprise security keys that can be activated upon handover in another example. Moreover, in non-real-time contexts, dummy packets can be transmitted to allow timer operability with packet sequence numbering, or security activation times can be substantially ignored by utilizing a verification process. | 12-25-2008 |
20090011783 | USER EQUIPMENT CAPABILITY HANDLING IN LONG-TERM EVOLUTION SYSTEMS - Systems, methodologies, and devices are described that facilitate management of user equipment (UE) capability information in a network to facilitate improved connection and communications associated with a mobile device. A core network can include a capability management component that can control UE capability information received during an initial connection of the mobile device to the network, where the UE capability information comprises UE dynamic capability and UE semi-static capability. The UE dynamic capability and semi-static capability can be identified from the received capability information and stored and managed respectively. When the initial connection is released, the dynamic capability information is deleted while the semi-static capability information can be retained in the core network. During a subsequent connection of the mobile device to the network, the stored semi-static capability can be retrieved and utilized to facilitate efficiently selecting a desired dynamic capability for the subsequent connection and communication. | 01-08-2009 |
20090041246 | ENCRYPTION OF THE SCHEDULED UPLINK MESSAGE IN RANDOM ACCESS PROCEDURE - Systems and methodologies are described that facilitate employing a random access procedure that leverages encrypted and/or unencrypted data in a scheduled uplink message. A random access preamble can be sent from an access terminal to a base station, and a random access response can be sent from the base station to the access terminal. A scheduled transmission message can be sent from the access terminal to the base station based upon a grant included in the random access response. When contention based random access is employed, the scheduled transmission message or a portion thereof can be unencrypted. Further, non-security-critical information can be sent in an unencrypted manner in the scheduled transmission message, while security-critical information can be encrypted for transmission (e.g., included in an encrypted portion of the scheduled transmission message and/or transmitted in a subsequent encrypted normal scheduled transmission message). | 02-12-2009 |
20090046656 | DELIVERY OF HANDOVER COMMAND - A delta configuration is transmitted to a UE requesting a handover wherein the delta configuration details changes that are required for the current UE configuration in order to execute the handover. The handover is initiated via a measurement report transmitted to a currently serving source eNode B from the UE. The measurement report can comprise one or more of current radio conditions, current UE configuration or a preferred target eNode B if the handover is a inter eNode B handover. In a inter eNB handover, the current UE configuration is forwarded to the preferred target eNode B by the source eNode B. The target eNode B generates the delta configuration and transmits it to the source eNode B in a transparent container which is subsequently forwarded to the UE. | 02-19-2009 |
20090047954 | CELL RESELECTION IN A WIRELESS COMMUNICATION SYSTEM - Techniques for performing cell reselection in a wireless communication system are described. A user equipment (UE) may initially camp on a first cell. While camped on the first cell, the UE may identify second and third cells deemed to be better than the first cell. The UE may move from the first cell to the second cell without performing cell reselection to camp on the second cell. After moving to the second cell, the UE may obtain at least one cell reselection parameter for the second and/or third cell and may update the rankings of the second and third cells based on the cell reselection parameter(s). The UE may then perform cell reselection from the first cell to the second or third cell based on the updated rankings, e.g., perform inter-frequency cell reselection from the first cell to the third cell without actually camping on the second cell. | 02-19-2009 |
20090061851 | PAGING USER DEVICES IN A WIRELESS ACCESS NETWORK - Providing paging controls for mobile communication is described herein. By way of example, the paging controls can comprise paging occasions of a wireless signal determined from a formula based on an integer raised to a function of a constant power (e.g., 2̂K or 2̂(K−L), where K and/or L are constant). Selected paging occasions can be grouped within the wireless signal, or distributed throughout a subset of time frames of the signal. Furthermore, paging groups can be assigned to each of the paging occasions by employing distinct identifiers of mobile device assigned to each paging occasion. By employing various paging occasions and paging groups, false alarm pages can be mitigated. According to at least one aspect, system information can be efficiently broadcast to multiple devices (e.g., all devices in a cell) by employing at least one paging group assigned for cell-wide paging. | 03-05-2009 |
20090061876 | IN-ORDER DATA DELIVERY DURING HANDOVER IN A WIRELESS COMMUNICATION SYSTEM - Techniques for performing in-order data delivery during handover in a wireless communication system are described. A user equipment (UE) may perform handover from a source base station to a target base station. The target base station may start a timer after a data path from a gateway to the UE has been switched from the source base station to the target base station. The target base station may receive forwarded packets for the UE from the source base station and may receive new packets for the UE from the gateway. The target base station may send the forwarded packets received prior to expiration of the timer to the UE before any new packets. The target base station may send the forwarded packets to the UE without waiting for the timer to expire and may send the new packets to the UE after the timer expires. | 03-05-2009 |
20090067386 | METHOD AND APPARATUS FOR CELL RESELECTION ENHANCEMENT FOR E-UTRAN - A framework for the cell reselection and associated measurement behavior is proposed based on a state in which a UE is camped on the cell. If the UE is ‘camped in any cell state’, inter-frequency and/or inter-RAT measurements are prioritized over intra-frequency measurements. The proposed scheme helps the UE to find a suitable cell while in the camped on any cell state. If the UE subscribes to specific frequencies, separate measurement rules are implemented to aid the UE to find and camp on the preferred frequencies. The proposed scheme also considers access related information in addition to radio quality to help the UE in making cell selections thereby mitigating the UE from camping on restricted cells. Such aspects minimize situations wherein users are limited due to the service provided by an operator. | 03-12-2009 |
20090069041 | SCHEDULING INFORMATION TRANSFER - A base station can transmit scheduling unit to mobile device that can enhance mobile device functionality. To transmit the scheduling unit efficiently, the information can be broken down into manageable units. The broken down units can be organized into groupings that enable the units to be sent as a function of available resources. Transmission can continue until a mobile device receives the scheduling unit, where re-organization can occur for a subsequent transmission. | 03-12-2009 |
20090092056 | METHODS AND APPARATUS FOR MANAGING MEASUREMENT BEHAVIOR OF DRX MODE UE - Systems and methods that manage measurement behavior of a UE in connected mode and while in discontinuous operation. The UE is enabled to autonomously (e.g., independent of instructions from network) enter a state of measurement, and generate a measurement report for the network, when quality of serving cell falls below the threshold of S_Intrasearch parameter. Moreover, the UE can perform inter-frequency and/or inter-RAT measurements autonomously by employing the “natural gaps” from its DRX pattern, when such are adequate to perform such measurements. | 04-09-2009 |
20090093280 | METHOD AND APPARATUS FOR HANDLING USER EQUIPMENT CAPABILITY INFORMATION - A method and apparatus for a wireless communication system, sends an initial connection request with the device capabilities of an indicated mobile station. The device capabilities comprise both semi-static capabilities and dynamic capabilities. The semi-static capabilities are stored in the core network. Data is transmitted via a wireless node before the mobile station transitions to an idle state. When transitioning back to an active state from the idle state when the semi-static capabilities have not changed, a connection request is sent with the dynamic capabilities of the user equipment without also transmitting the semi-static mobile station capabilities to the wireless node. | 04-09-2009 |
20090122762 | METHODS AND SYSTEMS FOR HFN HANDLING AT INTER-BASE STATION HANDOVER IN MOBILE COMMUNICATION NETWORKS - Systems and methods for addressing the de-synchronization of the cryptosync between the network and the mobile stations (eNB) that can occur at mobility are addressed. De-synchronization is resolved by forwarding HFN and PDCP Sequence Number(s) from the source eNB to the target eNB. In order to avoid re-use of a cryptosync for a given key, a backward offset from the initial COUNT value is used by the target eNB. These approaches do not require an over-the-air signaling and the COUNT value handling in the network is transparent to the mobile station. | 05-14-2009 |
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 |
20090137265 | BASING NEIGHBOR LIST UPDATES ON A RADIO LINK FAILURE - Aspects relate to allowing a mobile device to discover missing neighbor cell relations when there is a radio link failure. At substantially the same time as connecting to a new cell that utilizes the same radio link technology, the failure is reported. If a connection is reestablished with a cell that utilizes a different radio link technology, the radio link failure information (and related missing neighbor information) is retained and reported later when a connection with a cell that utilizes the same radio link technology is established. | 05-28-2009 |
20090149180 | HANDOVER FAILURE PROCEDURES IN COMMUNICATION SYSTEMS - When a handover failure occurs and/or is anticipated to occur, an optimized cell can be selected and user equipment can transfer to the optimized cell. This optimized cell can differ from a previous cell based upon various factors such as anticipated interference and load balancing. Once there is identification of a handover failure a cell can return to a previous frequency and an appropriate cell can be determined. Instruction of the cell that should be used can be determined by user equipment as well as from a network entity. | 06-11-2009 |
20090163211 | METHOD AND APPARATUS FOR TRANSFER OF A MESSAGE ON A COMMON CONTROL CHANNEL FOR RANDOM ACCESS IN A WIRELESS COMMUNICATION NETWORK - Techniques for sending a message for random access by a user equipment (UE) are described. In an aspect, the UE may send the message on a control channel for random access and may send a reserved channel identifier to indicate the message being sent on the control channel. In another aspect, the UE may send the message in a protocol data unit (PDU) and may send additional information (e.g., a buffer status report) in the PDU if it can accommodate the additional information. In yet another aspect, the UE may generate a short message authentication code for integrity protection (MAC-I) for the message. The short MAC-I may have a smaller size and may be used to authenticate the UE. In yet another aspect, the UE may send a UE ID of one of multiple types for random access and may convey the UE ID type via a format field in the message. | 06-25-2009 |
20090190544 | METHOD AND APPARATUS FOR CHANNEL IDENTIFICATION IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described that facilitate classification and identification of a channel associated with a wireless data transmission. As described herein, a channel designated for transmission of a packet can be selected from among multiple usable channels, based on which a bit at a predefined location in the packet can be set to a logical value indicative of the selected channel. As further described herein, extraction of the logical value from the predefined location and identification of the corresponding channel can be performed by a recipient of the packet without requiring parsing of the message. In one example described herein, a Dedicated Control Channel (DCCH) can be identified by setting a Logical Channel Identifier (LCID) bit in a DCCH packet to a predefined value. In another example, a Common Control Channel (CCCH) can be identified by embedding a Boolean constant within a message structure contained in a CCCH packet. | 07-30-2009 |
20090197589 | RADIO ACCESS NETWORK (RAN) LEVEL KEEP ALIVE SIGNALING - In a wireless communication system, a mobile station performs “keep-alive” signaling with a serving radio access network (RAN), transmitting its identity without necessarily an accompanying data portion. The serving RAN does not necessarily acknowledge. Thereby, the mobile station maintains state synchronization with the serving RAN, which also benefits in being able to timely release a context when the “keep-alive” transmission is not continued. In one aspect, the mobile station utilizes random access procedures (RACH) for uplink data arrival with a 0-byte MAC buffer status report whose identifying Cell Radio Network Temporary Identity (C-RNTI) can be used by the serving RAN for keep alive purposes. In another aspect, the mobile station can perform non-access stratum (NAS) signaling containing identification for the mobile station that is supported by underlying access stratum (AS) signaling via the serving RAN. This identifying NAS signaling is detected or a downstream recipient alerts the serving RAN. | 08-06-2009 |
20090221250 | METHODS AND APPARATUS FOR HANDLING A SIGNALING MESSAGE THE RELATES TO TRANSMISSION RATE RESTRICTIONS - A method for handling a signaling message that specifies transmission rate restrictions may include operating in a first state. The method may also include receiving the signaling message from a network. The signaling message may include an activation time, the transmission rate restrictions and the control duration. The method may also include receiving a state transition trigger to operate in a second state. The method may also include determining the user equipment's behavior regarding the transmission rate restrictions upon receiving the state transition trigger. | 09-03-2009 |
20090257353 | METHOD OF NETWORK MANAGEMENT BY ASSISTANCE FROM TERMINAL USING CONTROL-PLANE SIGNALING BETWEEN TERMINAL AND NETWORK - Systems and methodologies are described that facilitate network management and optimization. As described herein, a network and a device communicating with the network can exchange network management information, thereby supporting a Self Organized Network (SON) architecture for improved network management and optimization performance. A Non-Access Stratum (NAS) layer protocol and/or an Internet Protocol (IP) application, in combination with a set of associated network management messages, can be utilized to exchange network management information between a device and a network. As further described herein, various procedures can be utilized to install a SON policy to a device in order to define device behavior for operations such as collecting and reporting information related to network management. Additionally, a set of standardized events can be defined, based on which a device can detect the occurrence of an event and report the occurrence to an associated network. | 10-15-2009 |
20090296675 | SYSTEMS AND METHODS FOR MANAGING RRC CONNECTIONS IN WIRELESS COMMUNICATIONS - Systems and methodologies are described that facilitate selective release of mobile devices using conflicting identifiers when communicating with an access point. The access point can detect the conflicting identifier and transmit a selective release message to the mobile devices. The selective release message can include a disambiguation identifier so the appropriate mobile device can identify that it is incorrectly connected to the access point and can release its connection. The disambiguation identifier can be one or more unique aspects of the correctly or incorrectly connected mobile device, such as an identifier, previous message related aspects, whether a security or context check can be decoded, etc. Thus, connection of the incorrectly connected mobile device can be released without additionally releasing the correctly connected mobile device. | 12-03-2009 |
20090316654 | ACCESS TERMINAL ASSISTED NODE IDENTIFIER CONFUSION RESOLUTION USING A TIME GAP - 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 a network may provide a time gap (e.g., an asynchronous time gap) during which an access terminal may temporarily cease monitoring transmissions from a source node so that the access terminal may acquire a unique identifier from a target node. In some aspects an access terminal may commence handover operations at a target node after determining whether the access terminal is allowed to access the target node. In some aspects a source node may prepare several target nodes for potential handover in the event confusion is detected or likely. Here, the source node may send information relating to the preparation of the potential target nodes to the access terminal whereby the access terminal uses the handover preparation information to initiate a handover at that target node. | 12-24-2009 |
20090316655 | ACCESS TERMINAL ASSISTED NODE IDENTIFIER CONFUSION RESOLUTION - 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 a network may provide a time gap (e.g., an asynchronous time gap) during which an access terminal may temporarily cease monitoring transmissions from a source node so that the access terminal may acquire a unique identifier from a target node. In some aspects an access terminal may commence handover operations at a target node after determining whether the access terminal is allowed to access the target node. In some aspects a source node may prepare several target nodes for potential handover in the event confusion is detected or likely. Here, the source node may send information relating to the preparation of the potential target nodes to the access terminal whereby the access terminal uses the handover preparation information to initiate a handover at that target node. | 12-24-2009 |
20090320100 | HANDLING OF INTEGRITY CHECK FAILURE IN A WIRELESS COMMUNICATION SYSTEM - Handling of integrity check failure in a wireless communication system can safely send the mobile station to the idle mode upon detection of security failure. Alternatively or in addition, attempts to recover from the security failure situation can be enabled without forcing the mobile station to enter idle mode. The mobile station autonomously transitions to idle mode when the integrity check failure is detected a certain threshold number ‘X’ times during a specified period ‘Y’. Whereupon, the mobile station initiates the Radio Resource Control (RRC) connection re-establishment procedure after integrity check failure is detected. In the RRC connection re-establishment procedure, the security parameters are re-initialized to provide a possibility to recover from the failure situation. | 12-24-2009 |
20100026472 | PAGING AND NOTIFICATION MECHANISM FOR EMERGENCY WARNING SYSTEM OVER CELLULAR NETWORKS - Certain aspects of the present disclosure provide a method for transmitting emergency warning messages over cellular networks. In the proposed method, the access point transmits scheduling information of the emergency information in addition to the non-emergency information in a first system information block (SIB1) to a plurality of user equipments. In case of an emergency, the access point notifies the user equipments of the emergency situation and transmits emergency information to the user equipments to provide more information about the emergency situation. Since the user equipments already have scheduling information of the emergency information, they can start receiving the emergency information immediately after the emergency notification. | 02-04-2010 |
20100034126 | METHOD AND APPARATUS FOR HANDLING MEASUREMENT GAPS IN WIRELESS NETWORKS - In a wireless communication system, user equipment (UE) has autonomy provided by one or more set of rules to handle processing during a measurement gap. UE can ignore or use only a portion of the whole measurement gap if not needed. Thereby, an urgent need for remaining tuned to source carrier frequency can be supported, such as utilizing Random Access Channel (RACH) procedure. UE can also choose to tune to a target carrier frequency supporting timely handovers. Depending on the type of processing required (download shared channel (DL-SCH, UL-SCH, TTI bundling, RACH or SR), the UE may store requests and process the measurements during the gap or ignore the gap measurement as if there were no gaps. | 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 |
20100067412 | TTI BUNDLING IN A RANDOM ACCESS PROCEDURE - Systems and methodologies are described that facilitate effectuating a random access procedure in a wireless communication environment. A random access preamble can be sent from an access terminal to a base station, and a random access response can be sent from the base station to the access terminal in response. The random access response can allocate resources to be utilized by the access terminal for a scheduled transmission (e.g., message | 03-18-2010 |
20100105380 | METHOD AND APPARATUS FOR BROADCASTING SYSTEM INFORMATION IN A WIRELESS COMMUNICATION NETWORK - Techniques for broadcasting system information in a wireless communication network are described. A cell may support one or more public land mobile networks (PLMNs). The cell may send a PLMN table in a first message on a broadcast channel and may send at least one index to the PLMN table in a second message on the broadcast channel. The PLMN table may include entries for different possible PLMNs or different possible combinations of PLMNs. A UE may receive the first message from a serving cell and may receive the second message from a candidate cell for cell reselection. The UE may obtain the PLMN table from the first message and may obtain at least one index to the PLMN table from the second message. The UE may determine whether the second cell is accessible by the UE based on the PLMN table and the at least one index. | 04-29-2010 |
20100110947 | METHOD AND APPARATUS FOR SENDING SYSTEM INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - Techniques for transmitting system information (SI) in SI messages to enable efficient reception by user equipments (UEs) are described. In an aspect, SI messages may be scheduled using both a forward space after a reference time and a backward space prior to the reference time to allow more SI messages to be scheduled. In one design, a base station may assign at least one SI message with at least one SI window in the forward space and may assign at least one additional SI message with at least one additional SI window in the backward space. The base station may determine the position of each SI window based on an index of the SI message, a periodicity of the SI message, and an SI window length common for all SI messages. The base station may send each SI message within the periodically occurring SI window for that SI message. | 05-06-2010 |
20100130237 | METHOD AND APPARATUS FOR DETERMINING DRX CYCLE USED FOR PAGING - Techniques for determining a discontinuous reception (DRX) cycle used to receive paging are described. A user equipment (UE) may have (i) a first DRX cycle used by a first network (e.g., a core network) to page the UE and (ii) a second DRX cycle used by a second network (e.g., a RAN) to page the UE. In an aspect, the UE may use the longer DRX cycle and ignore the shorter DRX cycle, when allowed, to extend battery life. In one design, the UE may receive an indication of whether the second DRX cycle can be ignored or is to be considered by the UE. The UE may use the longer DRX cycle if the second DRX cycle can be ignored and may receive paging from the first network and/or the second network based on the longer DRX cycle. In another aspect, the UE may negotiate a DRX cycle with a network. | 05-27-2010 |
20100173610 | ACCESS STRATUM SECURITY CONFIGURATION FOR INTER-CELL HANDOVER - Systems and methodologies are described that handle security activation during handover in a wireless network. A new access stratum (AS) key can be provided to a serving access point (and a related wireless device) before and/or while preparing a target access point during an inter-cell handover. The serving access point can receive the new AS key and provide it to the target access point as part of handover preparation. The serving access point can then initiate inter-cell handover of the related wireless device indicating that the wireless device can utilize a new AS key before the serving access point has an opportunity to activate the new AS key with the wireless device. The wireless device can subsequently perform a random access procedure to the target access point and/or establish a connection therewith by transmitting other messages using the new AS key. | 07-08-2010 |
20100178920 | HANDOVER TO ANY CELL OF A TARGET BASE STATION IN A WIRELESS COMMUNICATION SYSTEM - Techniques for performing handover of a user equipment (UE) in a cell-to-base station manner are described. The UE may receive a handover command to perform handover from a source base station to a target base station. The source base station may send context information for the UE to the target base station, and the context information may be available to all cells of the target base station. The UE may attempt handover from a serving cell of the source base station to a first cell of the target base station. The UE may attempt handover to a second cell of the target base station if the handover to the first cell fails. The UE may (i) receive the first and second cells from the source base station or (ii) receive only the first cell from the source base station and determine the second cell based on broadcast system information. | 07-15-2010 |
20100189071 | RE-SYNCHRONIZATION OF TEMPORARY UE IDS IN A WIRELESS COMMUNICATION SYSTEM - Techniques for re-synchronizing Cell Radio Network Temporary Identifiers (C-RNTIs) in a wireless communication system are described. In one design, a user equipment (UE) sends a random access preamble for random access. A base station receives the random access preamble, assigns a Temporary C-RNTI to the UE, and sends a random access response including the Temporary C-RNTI. The UE uses the Temporary C-RNTI as a C-RNTI for itself if a valid C-RNTI is not already available. The UE discards the Temporary C-RNTI and uses the valid C-RNTI if available. The UE sends a transmission after receiving the random access response, and the transmission may include the valid C-RNTI if available. For handover, the base station (a target base station) receives a handover request from a source base station, assigns the valid C-RNTI to the UE, and sends the valid C-RNTI to the source base station for forwarding to the UE. | 07-29-2010 |
20100234026 | RESOURCE SEARCH IN A COMMUNICATION NETWORK - Methods, apparatus and computer program products are provided to facilitate the acquisition of radio recourses when an initial redirect attempt to acquire the necessary resources fails. The disclosed embodiments enable the determination as to whether or not a desired service is available on a target set of radio resources. Upon the failure to acquire the service, a preferential search of additional radio resources is conducted for acquisition of the service. The disclosed concepts are applicable to a variety of technologies, such as UMTS, GSM, 3GPP WCDMA and LTE, 3GPP2 1xRTT and HRPD, WLAN, WiMAX, DSL and passive optical network (PON). This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims. | 09-16-2010 |
20100238903 | INTER-ENODE B HANDOVER PROCEDURE - Methodologies are described that facilitate inter-eNode B handover. In various embodiments, logical protocol termination can be implemented between the user equipment and the target eNode B for inter-eNode B handover signaling. The provided handover forwarding and encapsulation mechanisms enable improved inter-operability between eNode Bs implementing different protocol versions or from different vendors, which in turn enables frequent protocol upgrades. Additionally, the invention enables the target eNode B to implement new radio configurations even if the configuration is unsupported by the source eNode B. | 09-23-2010 |
20100265914 | SYSTEMS, METHODS, AND DEVICES TO ENABLE SELECTION OF RADIO ACCESS TECHNOLOGY - In some embodiments, an access terminal is configured to select a first set of system resources, and communicate a message to acquire access to the first set of system resources, wherein the message conceals that the access terminal is capable of communication with a second set of system resources. In one embodiment, the first set of system resources includes circuit-switched system resources, the second set of system resources includes packet-switched system resources, and an access terminal conceals from the network that it is operable using the packet-switched system resources in order to acquire and/or maintain connected mode access to the circuit-switched system resources. Such embodiments allow an access terminal to use circuit-switched system resources even if the network does not support CS fallback or has refused a CS fallback request. | 10-21-2010 |
20100322079 | METHOD AND APPARATUS THAT FACILITATES MEASUREMENT PROCEDURES IN MULTICARRIER OPERATION - Aspects directed towards measurement procedures in multicarrier operation are disclosed. In a particular aspect, a wireless terminal selects a subset of cells, which include at least one serving cell and at least one non-serving cell. The subset of cells are then evaluated by obtaining a first measurement associated with the at least one serving cell and a second measurement associated with the at least one non-serving cell. A measurement event occurrence, which is based on a comparison between the first measurement and the second measurement, is then monitored. An occurrence of the measurement event triggers a measurement report transmission, which the network then uses to perform handovers. Other disclosed embodiments are directed towards placing a reception band, which include identifying a set of assigned component carriers and placing a reception band within the system bandwidth so that the placement overlaps with at least a portion of the assigned component carriers. | 12-23-2010 |
20100325267 | METHOD AND APPARATUS FOR NETWORK OPTIMIZATION USING SON SOLUTIONS - A method, an apparatus, and a computer program product for wireless communication are provided in which a communication event is detected, one or more aspects of the detected communication event are analyzed and at least one of the one or more aspects of the detected communication event is stored on an user equipment in a log. | 12-23-2010 |
20110182234 | SUPPORT FOR OPTIONAL SYSTEM PARAMETER VALUES - Aspects describe conveying optional network signaled values that can be utilized for communication in a communications environment. A method that includes generating a first network signaled value and a second network signaled value and transmitting first network signaled value and second network signaled value to at least one mobile device is provided. A communications apparatus, comprising a memory that retains instructions related to obtaining a first network signaled value and a second network signaled value from an access point and applying first network signaled value or second network signaled value for communication in a network as a function of a priority is also provided. Also provided are optional network signaled values that can be utilized separately from a mandatory network signaled value. | 07-28-2011 |
20110188437 | RECEPTION OF PARALLEL WARNING MESSAGES - Systems, methods and apparatus described herein include features that enable the reception of multiple warning messages. In one embodiment, the access point transmits a list of warning messages. Using the list a UE is able to determine whether all of the currently available warning messages have been received, and in turn, whether to maintain open reception in order to enable reception of the warning messages on the list that have not been fully received. In another embodiment, the access point transmits an indicator of a counter value. Using the indicator of the counter value a UE is able to decipher how many warning messages are being currently transmitted. In another embodiment, an access point transmits an indicator that the number of available warning messages has changed. In turn, a UE is able to determine whether or not to check for a new list or indicator of a counter value. | 08-04-2011 |
20110194427 | RESOURCE SELECTION FOR DUAL RADIO TERMINALS - Systems, methods and apparatus described herein include features that enable dual radio access. In one embodiment, the access point directs an access terminal through sequential measurements, which are selected by the access point based on the radio access capability of the access terminal, service preferences of the user and measurement reports. In a complementary method, an access terminal obtains the sequential measurements chosen by the access point. In another embodiment, the access point directs an access terminal through a set of measurements, which are selected by the access point based on the radio access capability of the access terminal and service preferences of the user. In another embodiment, an access terminal selects which subset of measurements to obtain based on the radio access capability of the access terminal and optionally service preferences of the user. | 08-11-2011 |
20110242999 | METHOD AND APPARATUS FOR CONDUCTING MEASUREMENTS WHEN MULTIPLE CARRIERS ARE SUPPORTED - Measurements are conducted on one or more carriers in a case where an access terminal supports reception on multiple carriers. Upon determining that an access terminal is capable of concurrently receiving on a given set of carriers, a measurement is conducted on one or more carriers of the set while receiving on or more other carriers of the set. Conversely, upon determining that an access terminal is not capable of concurrently receiving on a given set of carriers, a measurement is conducted on one or more carriers of the set while not receiving on or more other carriers of the set. In addition, data transfers to or from an access terminal on a carrier may be restricted (e.g., data transfers not scheduled or only low priority data transfers scheduled) during one or more subframes before or after the access terminal conducts a measurement on another carrier. | 10-06-2011 |
20110261961 | REDUCTION IN BEARER SETUP TIME - A method and apparatus are provided for reducing latency and/or delays in performing a security activation exchange between a communication device and a network entity. The communication device may pre-compute a plurality of possible keys using a base key and a plurality of possible inputs in anticipation of receiving an indicator from the network entity that identifies a selected input to be used in generating a corresponding selected key. An indicator is then received from the network entity, where the indicator identifies the selected input from among the plurality of possible inputs. The communication device then selects a first key among the pre-computed plurality of possible keys as the selected key upon receipt of the indicator, wherein the first key is selected because it was pre-computed using the selected input. Because the first key is pre-computed, delays in responding to the network entity are reduced. | 10-27-2011 |
20110275394 | RESOURCE PARTITIONING INFORMATION FOR ENHANCED INTERFERENCE COORDINATION - Methods and apparatus for partitioning resources for enhanced inter-cell interference coordination (eICIC) are provided. Certain aspects involve broadcasting a message indicating time-domain resource partitioning information (RPI), where a user equipment (UE) may be operating in idle mode. With the RPI, the UE may be able to identify protected resources with reduced/eliminated interference from neighboring cells. The RPI in this broadcasted message may be encoded as a bitmap as an alternative or in addition to enumeration of the U/N/X subframes. Other aspects entail transmitting a dedicated or unicast message indicating the time-domain RPI, where a UE may be operating in connected mode. With the RPI, the UE may be able to determine channel state information (CSI), make radio resource management (RRM) measurements, or perform radio link monitoring (RLM), based on one or more signals from a serving base station during the protected time-domain resources. | 11-10-2011 |
20110292915 | MULTIPLE CARRIER ACTIVATION/DEACTIVATION IN WIRELESS COMMUNICATIONS - Systems, methods and apparatuses are provided that facilitate selecting resources, such as time slots, subframes, etc., for performing bandwidth switching related to activating and/or deactivating one or more carriers. A data portion of one or more subframes can be selected for performing bandwidth switching. In addition, a device can determine whether one or more downlink grants are received in the one or more subframes, and can avoid selecting such subframes. The device can alternatively perform the bandwidth switching and request retransmission of the data portion. Additionally or alternatively, the device can determine a type of the one or more subframes and/or signals transmitted in the one or more subframes to determine whether to perform bandwidth switching in the subframes. The bandwidth switching can include changing a sampling rate, reconfiguring frequency filters, modifying a local oscillator, etc. | 12-01-2011 |
20110312353 | ENERGY SAVING MODE WITH MAINTAINED NUMBER OF ADVERTISED TRANSMIT ANTENNAS - Certain aspects of the present disclosure provide techniques for wireless communications, wherein first number of transit antennas is advertised, but a different number of transmit antennas are actually used for transmission. | 12-22-2011 |
20120039269 | METHOD AND APPARATUS OF DEACTIVATING CARRIERS IN WIRELESS COMMUNICATIONS - Methods and apparatuses are provided for determining whether to deactivate one or more uplink carriers based at least in part on determining deactivation of a downlink carrier. A linking of the one or more uplink carriers to the downlink carrier can be obtained for determining whether to deactivate the one or more uplink carriers. The linking can be a system information block linking, a carrier indicator field linking, a pathloss linking, an uplink timing reference linking, and/or the like. The one or more uplink carriers can be deactivated based on the linking and/or another linking to one or more other downlink carriers. | 02-16-2012 |
20120087239 | METHODS AND APPARATUS FOR HANDLING A SIGNALING MESSAGE THAT RELATES TO TRANSMISSION RATE RESTRICTIONS - A method for handling a signaling message that specifies transmission rate restrictions may include operating in a first state. The method may also include receiving the signaling message from a network. The signaling message may include an activation time, the transmission rate restrictions and the control duration. The method may also include receiving a state transition trigger to operate in a second state. The method may also include determining the user equipment's behavior regarding the transmission rate restrictions upon receiving the state transition trigger. | 04-12-2012 |
20120113866 | INTER-FREQUENCY MEASUREMENT CONTROL IN A MULTI-CARRIER SYSTEM - Techniques are disclosed for signaling a capability to operate in one or more carrier aggregation configurations and measurement gap requirements corresponding to the carrier aggregation configurations. Each carrier aggregation configuration may include one or more frequency bands and a mobile terminal can provide an indication of its measurement gap requirements for all or a subset of its supported frequency bands when operating in the carrier aggregation configurations. The measurement gap requirements may correspond to a physical or logical configuration of receiver resources and the signaling may be initiated by the mobile terminal or by a base station in communication with the mobile terminal. | 05-10-2012 |
20120220329 | NOTIFICATION OF MODIFICATION OF SYSTEM INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described that facilitate notifying and detecting modification of system information in a wireless communication system. A mobile device may receive a first system information block (SIB) in a first time period, obtain from the first SIB at least one parameter related to modification of at least one SIB, and determine whether to receive the at least one SIB based on the at least one parameter obtained from the first SIB. The mobile device may receive a paging message in a second time period and may determine whether to receive one or more SIBs based on information obtained from the paging message. The mobile device may receive the first SIB in the first time period after entering a cell in an idle mode. The mobile device may receive the paging message in the second time period after accessing the cell. | 08-30-2012 |
20120230298 | METHODS AND SYSTEMS FOR HFN HANDLING AT INTER-BASE STATION HANDOVER IN MOBILE COMMUNICATION NETWORKS - Systems and methods for addressing the de-synchronization of the cryptsync between the network and the mobile stations (eNB) that can occur at mobility are addressed. De-synchronization is resolved by forwarding HFN and PDCP Sequence Number(s) from the source eNB to the target eNB. In order to avoid re-use of a crytosync for a given key, a backward offset from the initial COUNT value is used by the target eNB. These approaches do not require an over-the-air signaling and the COUNT value handling in the network is transparent to the mobile station. | 09-13-2012 |
20120307808 | DETERMINING UE INTERFERENCE DURING HANDOVER IN ENHANCED INTER-CELL INTERFERENCE COORDINATION - A method of wireless communication determines a UE interference condition during handover. A target cell receives information that indicates an interference condition of a user equipment (UE). Prior to completing handover, the target cell determines an expected UE interference condition that will arise after completing the handover of the UE at a target base station. The information can be determined based on a message from the UE. The UE message may indicate which cell is the strongest, indicate the interference condition at both the source and target cells, or only provide a measurement of the strongest cell. Based on the UE measurements, the target eNodeB may schedule the UE on resources based on the expected interference condition at the UE that may arise after the handover. | 12-06-2012 |
20130012206 | PAGING USER DEVICES IN A WIRELESS ACCESS NETWORK - Providing paging controls for mobile communication is described herein. By way of example, the paging controls can comprise paging occasions of a wireless signal determined from a formula based on an integer raised to a function of a constant power (e.g., 2̂K or 2̂(K−L), where K and/or L are constant). Selected paging occasions can be grouped within the wireless signal, or distributed throughout a subset of time frames of the signal. Furthermore, paging groups can be assigned to each of the paging occasions by employing distinct identifiers of mobile device assigned to each paging occasion. By employing various paging occasions and paging groups, false alarm pages can be mitigated. According to at least one aspect, system information can be efficiently broadcast to multiple devices (e.g., all devices in a cell) by employing at least one paging group assigned for cell-wide paging. | 01-10-2013 |
20130064165 | SUPPORT OF MULTIPLE TIMING ADVANCE GROUPS FOR USER EQUIPMENT IN CARRIER AGGREGATION IN LTE - Methods, systems, and devices are described to support multiple timing advance groups for multi-carrier user equipment. Some embodiments provide for utilizing timing advance group synchronization information across multiple timing advance groups. Some embodiments provide support for performing random access procedures in relation to timing advance groups that may not include a primary component carrier. Some embodiments utilize timing advance group indexes to enable cross-carrier random access procedure management. Other embodiments support parallel random access procedures across multiple timing advance groups. Some embodiments provide for a reference downlink component carrier for timing within a timing advance group. | 03-14-2013 |
20130064225 | METHOD AND APPARATUS FOR SECURITY ACTIVATION IN WIRELESS COMMUNICATIONS NETWORK - Systems and methodologies are provided that facilitate security activation for wireless communications. In an aspect, a method for wireless communication is provided which includes determining a first security key for communicating with a source access point and receiving, from the source access point, a handover command that includes an indication of whether to apply a second security key upon handover. The method also includes handing over communication from the source access point to a target access point, where the second security key is applied for communicating with the target access point upon the handover when the handover command indicates to apply the second security key. | 03-14-2013 |
20130142139 | SIGNALING OF SUPPORTED CARRIER BANDWIDTHS FOR CARRIER AGGREGATION - Techniques for signaling carrier bandwidths supported by a user equipment (UE) for carrier aggregation are disclosed. A UE may be configured with a plurality of carriers for carrier aggregation. Each carrier may have one carrier bandwidth of a set of possible carrier bandwidths. The set of possible carrier bandwidths may be dependent on a band in which the carrier belongs. Multiple combinations of carrier bandwidths for the plurality of carriers may be possible. The UE may identify at least one supported carrier bandwidth combination for the plurality of carriers. Each of the supported carrier bandwidth combinations may include a particular carrier bandwidth for each configured carrier. The UE may send signaling indicative of the at least one supported carrier bandwidth combination. The UE may thereafter communicate on the plurality of carriers based on a carrier bandwidth combination selected from the supported carrier bandwidth combination(s). | 06-06-2013 |
20130155981 | METHOD AND APPARATUS FOR RE-SYNCHRONIZING OF TEMPORARY UE IDS IN A WIRELESS COMMUNICATION SYSTEM - Methods and apparatuses for re-synchronizing Cell Radio Network Temporary Identifiers (C-RNTIs) in a wireless communication system are disclosed. In an aspect, a random access preamble is sent for random access by a user equipment (UE) and a random access response (RAR) is received that includes a temporary C-RNTI. If the UE already has a valid C-RNTI, a message is sent that includes the valid C-RNTI instead of the temporary C-RNTI as a C-RNTI for the UE. In another aspect, a random access preamble for random access is received and a RAR is sent that includes a temporary C-RNTI. A message is received that includes a valid C-RNTI instead of the temporary C-RNTI as a C-RNTI for a UE if the UE already has the valid C-RNTI. | 06-20-2013 |
20130182688 | METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS ON A SECONDARY CARRIER - Methods and apparatus are described herein for synchronizing timing when using a secondary component carrier (SCC) in a carrier aggregated wireless network. A user equipment (UE) may determine that it is out of synchronization with respect to an SCC used to communicate with a network element. The UE may inform the network element of the out of synchronization status, and may perform a random access procedure to synchronize the timing. | 07-18-2013 |
20130194947 | UE-INITIATED DYNAMIC ACTIVATION AND DE-ACTIVATION OF SECONDARY CARRIERS - Managing of secondary carriers for a multicarrier user equipment (UE) is described in which the UE initiates or provides input for activation and deactivation of selected secondary cells in a carrier aggregation depending on allocation or provisioning of UE radio frequency resources. | 08-01-2013 |
20130196603 | FLEXIBLE RADIO RESOURCE MANAGEMENT (RRM) MEASUREMENTS FOR WIRELESS NETWORKS - Methods and apparatus for performing reference signal (RS) metric measurements in different parts of a channel bandwidth are described. One example method generally includes receiving signaling indicating one or more frequency bands within an operating frequency band of a current serving cell for performing reference signal (RS) metric measurements, performing the measurements on the one or more frequency bands, and reporting the measurements. | 08-01-2013 |
20130250927 | Resource Partitioning Information for Enhanced Interference Coordination - Methods and apparatus for partitioning resources for enhanced inter-cell interference coordination (eICIC) are provided. Certain aspects involve broadcasting a message indicating time-domain resource partitioning information (RPI), where a user equipment (UE) may be operating in idle mode. With the RPI, the UE may be able to identify protected resources with reduced/eliminated interference from neighboring cells. The RPI in this broadcasted message may be encoded as a bitmap as an alternative or in addition to enumeration of the U/N/X subframes. Other aspects entail transmitting a dedicated or unicast message indicating the time-domain RPI, where a UE may be operating in connected mode. With the RPI, the UE may be able to determine channel state information (CSI), make radio resource management (RRM) measurements, or perform radio link monitoring (RLM), based on one or more signals from a serving base station during the protected time-domain resources. | 09-26-2013 |
20130322302 | METHODS AND APPARATUS FOR UPDATING THE UE CAPABILITY IN AN E-UTRAN - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus transmits a first set of capabilities to a first cell. The first set of capabilities is for communication with the first cell. The apparatus transmits information associated with a second set of capabilities to the first cell. The second set of capabilities is for communication with a second cell. The apparatus moves from the first cell to the second cell. The apparatus communicates with the second cell based on the transmitted information. | 12-05-2013 |
20130329563 | METHOD OF NETWORK MANAGEMENT BY ASSISTANCE FROM TERMINAL USING CONTROL-PLANE SIGNALING BETWEEN TERMINAL AND NETWORK - Systems and methodologies are described that facilitate network management and optimization. As described herein, a network and a device communicating with the network can exchange network management information, thereby supporting a Self Organized Network (SON) architecture for improved network management and optimization performance. A Non-Access Stratum (NAS) layer protocol and/or an Internet Protocol (IP) application, in combination with a set of associated network management messages, can be utilized to exchange network management information between a device and a network. As further described herein, various procedures can be utilized to install a SON policy to a device in order to define device behavior for operations such as collecting and reporting information related to network management. Additionally, a set of standardized events can be defined, based on which a device can detect the occurrence of an event and report the occurrence to an associated network. | 12-12-2013 |
20140003278 | ENERGY SAVING MODE WITH MAINTAINED NUMBER OF ADVERTISED TRANSMIT ANTENNAS | 01-02-2014 |
20140050194 | MULTIPLE TIMING ADVANCE GROUPS (TAGS) FOR UL CARRIER AGGREGATION (CA) - Techniques are provided for assigning aggregated component carriers. For example, a method may include receiving from a user equipment (UE) a set of rules associated with timing advance groups (TAGs) comprising allowable combinations of frequency bands. The method may include determining frequencies of aggregated component carriers. The method may include assigning the aggregated component carriers to at least one timing advance group based on the allowable combinations of frequency bands and the determined frequencies of the aggregated component carriers. | 02-20-2014 |
20140071919 | METHOD AND APPARATUS FOR HANDLING MEASUREMENT GAPS IN WIRELESS NETWORKS - In a wireless communication system, user equipment (UE) has autonomy provided by one or more set of rules to handle processing during a measurement gap. UE can ignore or use only a portion of the whole measurement gap if not needed. Thereby, an urgent need for remaining tuned to source carrier frequency can be supported, such as utilizing Random Access Channel (RACH) procedure. UE can also choose to tune to a target carrier frequency supporting timely handovers. Depending on the type of processing required (download shared channel (DL-SCH, UL-SCH, TTI bundling, RACH or SR), the UE may store requests and process the measurements during the gap or ignore the gap measurement as if there were no gaps. | 03-13-2014 |
20140098754 | METHODS AND APPARATUS FOR IMPROVED RESOURCE MANAGEMENT IN LTE - Certain aspects of the present disclosure relate to methods and apparatus for improved resource management in LTE. Methods and apparatus are provided for receiving, by a user equipment (UE), signaling providing an indication of a set of one or more subframes in which a set of resources are non-usable for one or more functions performed by the UE, or determining of the set by the UE, and excluding the non-usable resources when performing the one or more functions. Methods and apparatus are provided for identifying, by a base station (BS), a set of one or more subframes in which a set of resources might not be suitable for one or more functions performed by a user equipment (UE) and transmitting signaling, to the UE, providing an indication the set of resources are non-usable in the one or more subframes for the one or more functions performed by the UE. | 04-10-2014 |
20140133294 | Methods and Systems for Broadcasting Load Information to Enable a User Equipment (UE) to Select Different Network Access - Methods and apparatus for offloading traffic from a first RAT network (e.g., WWAN) to a second RAT network (e.g., WLAN) are described. In some cases, the first RAT network may broadcast an indication of a level of preference for offloading traffic for one or more application types to the first or second RAT network. A UE may determine which RAT network to use for transmitting data based on this indication and current system conditions (e.g., relative loading of the first and second RAT networks). | 05-15-2014 |
20140140239 | Method and Apparatus for Conducting Measurements when Multiple Carriers are Supported - Measurements are conducted on one or more carriers in a case where an access terminal supports reception on multiple carriers. Upon determining that an access terminal is capable of concurrently receiving on a given set of carriers, a measurement is conducted on one or more carriers of the set while receiving on or more other carriers of the set. Conversely, upon determining that an access terminal is not capable of concurrently receiving on a given set of carriers, a measurement is conducted on one or more carriers of the set while not receiving on or more other carriers of the set. In addition, data transfers to or from an access terminal on a carrier may be restricted (e.g., data transfers not scheduled or only low priority data transfers scheduled) during one or more subframes before or after the access terminal conducts a measurement on another carrier. | 05-22-2014 |
20140198736 | MANAGEMENT OF WIRELESS COMMUNICATIONS USING INFORMATION RELATING TO SCHEDULING REQUEST PERFORMANCE - Methods, systems, and devices for managing wireless communications are described. In one embodiment, information relating to a scheduling request performance of a first set of one or more user equipments (UEs) may be compiled, and at least a subset of the information may be transmitted to trigger an identification of an adjustment of an uplink power control setting of a second set of one or more UEs. In another embodiment, information to trigger an identification of an adjustment of an uplink power control setting for transmitting scheduling requests may be received from each of a first plurality of UEs. The information may be analyzed, and a power adjustment may be identified for the uplink power control setting for at least one of a second plurality of UEs. The identified power adjustment may then be transmitted to the at least one of the second plurality of UEs. | 07-17-2014 |
20140307623 | UE INITIATED SCELL CONNECTION ESTABLISHMENT - Methods, systems, devices, and apparatuses are described for wireless communications in which a wireless device may identify a small cell (e.g., SCell) and establish an independent connection with the small cell based at least in part on selection parameters received from a macro cell (e.g., PCell). The selection parameters may include power and/or quality parameters, as wells as a set of candidate cells from which to make the selection. The macro and small cells may be in communication with each other but need not be associated with the same base station (i.e., are not collocated). Once the small cell connection is established, the device may communicate with both cells concurrently. Available uplink data and/or downlink data may trigger the need for the device to connect with the small cell. For example, the small cell connection may be used to communicate uplink/downlink data associated with certain quality-of-service (QoS) and/or bearer identifier. | 10-16-2014 |
20140307711 | INTER-ENODE B HANDOVER PROCEDURE - Methodologies are described that facilitate inter-eNode B handover. In various embodiments, logical protocol termination can be implemented between the user equipment and the target eNode B for inter-eNode B handover signaling. The provided handover forwarding and encapsulation mechanisms enable improved inter-operability between eNode Bs implementing different protocol versions or from different vendors, which in turn enables frequent protocol upgrades. Additionally, the invention enables the target eNode B to implement new radio configurations even if the configuration is unsupported by the source eNode B. | 10-16-2014 |
20150043479 | TECHNIQUES FOR ALLOCATING USER EQUIPMENT PROCESSING CAPABILITY AMONG MULTIPLE ACCESS NODES - Certain aspects of the present disclosure relate to allocating user equipment (UE) processing capability among multiple access nodes. In an aspect, processing capability of a UE may be determined. When the UE is in communication with at least a first access node and a second access node, a first allocation of the UE processing capability for the first access node or a second allocation of the UE processing capability for the second access node may be determined. Resources may be assigned for the UE based at least in part on the first allocation or the second allocation. In an aspect, the first access node and the second access node may negotiate to determine the first allocation or the second allocation. In an aspect, the first allocation or the second allocation may be determined based on a previously-configured rule associated with a category of the UE. | 02-12-2015 |
20150056993 | CONNECTED MODE MOBILITY BETWEEN RADIO ACCESS NETWORKS - A method, an apparatus, and a computer program product for wireless communication are provided in which a user equipment performs an inter-radio access technology (RAT) mobility procedure from a first network to a second network while idle mode signaling reduction (ISR) is active, locally deactivates ISR in connection with completion of the inter-RAT mobility procedure, and initiates a location management procedure in the second network. Depending on the respective type of the first and second network, and the connection state of the UE with respect to the first network, the mobility procedure may be performed in response to a mobility command received from the first network, or in response to a mobility condition of the first network as detected by the UE. | 02-26-2015 |