Abstract:
The present disclosure presents a method and apparatus for improving uplink (UL) performance at a user equipment (UE). For example, the method may include identifying a random access channel (RACH) preamble failure when the UE is communicating with a current serving cell of the UE, increasing transmission power of successive RACH preambles based at least on the identifying, comparing signals received on a downlink at the UE via a first path and a second path from the current serving cell of the UE, and determining that a RACH preamble failure problem exists at the UE based at least on the comparing of the signals received on the downlink and identifying of successive RACH preamble failures. As such, improved performance uplink (UL) performance at a UE may be achieved.
Abstract:
Methods and apparatuses relating to wireless communication of a user equipment (UE) are provided including communicating with a network using a first channel configuration, receiving a second channel configuration from the network indicating a second channel for communicating with the network, and determining whether the second channel configuration is valid based at least in part on one or more parameters. Where the second channel configuration is valid, the second channel is configured for communicating with the network. Where the second channel configuration is not valid, the second channel configuration is rejected and use of the first channel configuration is continued.
Abstract:
Various aspects of the present disclosure enable a plurality of mobile devices (UEs) within a cell to spread out in time their respective transmissions of signaling messages, such as cell update messages, when the network enables or disables enhanced uplink (EUL, sometimes referred to as high-speed uplink packet access or HSUPA) while the UE is in the CELL_FACH state, by changing SIB5 or SIB5bis. In this way, the network load may be reduced, and a network blockage that otherwise might result from large numbers of UEs simultaneously transmitting the cell update message can be avoided. According to one example, a network node may be configured to distribute CELL_UPDATE messages or procedures to UEs when the network node enables or disables EUL in CELL_FACH by changing SIB5 or SIB5bis over time to reduce the network load. According to another example, a UE may be configured for utilizing a random timer or back-off timer to defer cell updates.
Abstract:
The described aspects include a user equipment (UE) apparatus, network component, and corresponding methods of communicating power saving information using common uplink messages. By using a resource update message to communicate power saving information from a UE, the UE need not request and establish resources with the network for requesting a power state that uses less power than a current state. Similarly, in UE mobility, the UE can indicate previous power saving information to a target Node B to cause the target Node B to refrain from assigning resources to the UE.
Abstract:
Techniques are provided for receiving encrypted positioning assistance data, requesting and obtaining cipher keys to decrypt the positioning assistance data. An example method for transmitting a cipher key request includes receiving cipher key information including a start time value, a duration value, and an advance time value, determining an advance time duration that is equal to a sum of the start time value and the duration value minus the advance time value, and transmitting the cipher key request within the advance time duration.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine, via a first subscription of the UE, a trigger event for a conditional handover of the UE from a source network entity to a target network entity. The UE may determine, based at least in part on the trigger event, that a target band associated with the target network entity is not compatible with a serving band associated with a second subscription of the UE. The UE may store the trigger event for the conditional handover in a buffer of the UE. The UE may perform an action related to the conditional handover based at least in part on a condition being satisfied. Numerous other aspects are described.
Abstract:
Aspects described herein relate to configuring and indicating radio resource control (RRC) message types in wireless communications, to support new UE categories, new operation modes, new use cases, or a combination thereof. Configuration and indication methods that may support co-existence of new and legacy RRC message types and/or user equipment (UE) procedures for decoding new RRC message type are also described.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine that a reselection timer has an expiration time that is to extend an active period of a discontinuous reception (DRX) cycle; determine whether to extend the active period based at least in part on at least one of a set of serving cell measurements or a duration that the expiration time is to extend the active period; and selectively extend the active period or enter a sleep mode without extending the active period based at least in part on determining whether to extend the active period. Numerous other aspects are provided.
Abstract:
Various aspects are described herein. In some aspects, the present disclosure provides a method for communicating in a wireless communication network. The method includes transmitting a message. The method further includes receiving a control protocol data unit (PDU) including a payload, the payload including an acknowledgement service data unit (SDU) of the transmitted message, in response to transmitting the message. The method further includes processing the control PDU at a lower layer based on a priority of the control PDU, wherein the priority of the control PDU is above a priority of data PDUs. The method further includes determining, based on the processing of the control PDU at the lower layer, that the payload of the control PDU includes an acknowledgement SDU. The method further includes forwarding the acknowledgement SDU to a higher layer, bypassing the lower layer. The method further includes processing the acknowledgment SDU at the higher layer.
Abstract:
Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive sensor information from a sensor associated with the user equipment, wherein the user equipment is in a deep sleep mode when the sensor information is received. The user equipment may deactivate the deep sleep mode, based at least in part on receiving the sensor information, to permit the user equipment to transmit or decode a network communication.