Abstract:
Techniques for deriving a WLAN security context from an existing WWAN security context are provided. According to certain aspects, a user equipment (UE) establishes a secure connection with a wireless wide area network (WWAN). The UE may receive from the WWAN an indication of a wireless local area network (WLAN) for which to derive a security context. The UE then derives the security context for the WLAN, based on a security context for the WWAN obtained while establishing the secure connection with the WWAN and establishes a secure connection with the WLAN using the derived security context for the WLAN. This permits the UE to establish a Robust Security Network Association (RSNA) with the WLAN while avoiding lengthy authentication procedures with an AAA server, thus speeding up the association process.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain hybrid automatic repeat request (HARQ) information indicating whether the network node is configured to perform a retransmission of decoding information prior to an end of HARQ processes associated with the network node. The UE may receive, for a HARQ process associated with a downlink communication from the network node, a retransmission of a transport block (TB) that is associated with a reserved MCS when full decoding information for the TB is unavailable. The UE may perform, based on a reception of a retransmission, an action to proceed with the HARQ process, to restart the HARQ process, or to terminate the HARQ process, wherein the action is based on whether the network node is configured to perform the retransmission of the indication of the MCS. Numerous other aspects are described.
Abstract:
Methods, systems, and devices for wireless communication are described. A device may transmit or receive multiple data packets via a data connection established via a wireless channel. The multiple data packets may be a sequence of data packets. The device may identify a quantity of duplicate acknowledgment (ACK) messages, where a first ACK message may be identified as being a duplicate ACK message based on a second ACK message indicating successful receipt of a same packet as the first ACK message and successful receipt of one or more subsequent packets in the sequence of data packets, and based on the second ACK message being generated within a time duration threshold of the first ACK message. The device may perform a duplicate ACK recovery procedure based on the quantity of duplicate ACK messages satisfying a trigger threshold.
Abstract:
Certain aspects of the present disclosure provide techniques and apparatus for antenna-aware energy reservation for radio frequency (RF) exposure compliance. An example method of wireless communication includes obtaining information associated with a plurality of antenna ports. The method further includes determining one or more reserves based at least in part on the information. The method further includes transmitting a first signal via a first antenna port at a first transmit power determined based at least in part on the one or more reserves while maintaining at least a portion of the one or more reserves for a future transmission via a second antenna port.
Abstract:
Methods, systems, and devices for wireless communications are described. A wireless node may receive one or more data messages which may include a set of packets that may each be associated with a sequence number. The set of packets may be received with a gap in the set of sequence numbers, indicating missing packets. The wireless node may forward the set of packets to a processing layer of the wireless node. The wireless node may then accept, from the processing layer of the wireless node, a set of duplicate (DUP) acknowledgment (ACK) messages based on the set of packets being forwarded to the processing layer while having the gap in the set of sequence numbers. The wireless node may transmit, a subset of the set of DUP ACKs rather than all of the set of DUP ACKs to another wireless node, such as a base station.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver device may receive a first packet of a plurality of packets included in a reordering window of the receiver device. The receiver device may receive a second packet of the plurality of packets. The receiver device may provide the first packet and the second packet based at least in part on expiration of a reordering timer. The receiver device may receive a third packet of the plurality of packets at a third time, wherein the first packet, the second packet, and the third packet are received sequentially. The receiver device may provide a set of packets including the first packet, the third packet, and the second packet in order, to a higher layer in accordance with a timer that is shorter than a length of the reordering window. Numerous other aspects are described.
Abstract:
Certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The UE starts a first timer (such as a discontinuous reception (DRX) hybrid automatic repeat request (HARQ) round-trip-time (RTT) timer), after sending an uplink (UL) data transmission to a network entity. The UE then starts a second timer (such as a DRX retransmission timer) when the first timer expires. The UE then determines whether to wake up or sleep for a duration of the second timer based on a prior block error rate (BLER).
Abstract:
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, via a first carrier associated with a first radio access technology, at least a first uplink grant from a base station. The UE may implement one or more backoff schemes. For example, the UE may transmit, using resources indicated by at least the first uplink grant, an uplink message based on a temperature of one or more components of the UE satisfying a threshold, the uplink message including a transport block (TB) indicating data, a buffer status report (BSR) associated with the data, one or more padding bytes different from the data, or any combination thereof. The UE may monitor for at least a second uplink grant from the base station during a first time period based on transmitting the uplink message.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain one or more communication parameters associated with one or more communications to be transmitted by the UE. The UE may transmit the one or more communications based at least in part on a congestion control algorithm selected from a set of candidate congestion control algorithms, the congestion control algorithm selected based at least in part on the one or more communication parameters. Numerous other aspects are described.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may identify, for removal from a hybrid automatic repeat request (HARQ) buffer of the wireless communication device, a HARQ process from a plurality of HARQ processes maintained in the HARQ buffer by the wireless communication device, wherein the HARQ process is identified based at least in part on one or more HARQ buffer management parameters. The wireless communication device may remove the HARQ process from the HARQ buffer. Numerous other aspects are described.