Abstract:
Methods, systems, and devices for wireless communication are described that provide for sharing or isolating network resources between multiple cells in a system. Resources are allocated to multiple cells and multiplexed according to a time division multiplexing (TDM) scheme where a portion of a component carrier is shared between multiple cells. The allocation of resources also includes splitting or sharing a portion of the time resources between two or more cells such that a subframe is allocated as a subframe shared between multiple cells or as a subframe dedicated for use by only a single cell.
Abstract:
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).
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.