Abstract:
One or more aspects of the disclosure provide an improved receiver automatic gain control (RxAGC) algorithm operable at a wireless receiver that is capable of receiving transmissions at two or more carrier frequencies utilizing a shared radio frequency (RF) front end architecture, whether in the same radio technology or in different radio technologies. The RxAGC algorithm is utilized to control the gain of amplifiers within the receive chain. Other aspects, embodiments, and features are also claimed and described.
Abstract:
Aspects of the present disclosure provide a method of performing discontinuous reception (DRX) and long timescale discontinuous transmission (LDTX) in a wireless communications system. An access terminal (AT) includes a communications interface configured to receive a forward link (FL) transmission from a network, wherein the FL transmission includes a plurality of frames each including at least two half slots. The AT further includes a computer-readable medium with instructions and a processing circuit coupled to the communications interface and the computer-readable medium. The AT is configured to enable a LDTX mode including an LDTX on period and an LDTX off period. In the LDTX off period, the AT autonomously enables a DRX mode in at least a portion of a half slot based on data contained in the half slot.
Abstract:
Aspects of the present disclosure provides an apparatus configured to perform discontinuous reception (DRX) in a wireless communications system. The apparatus is configured to receive a forward link (FL) transmission from a network. The FL transmission includes one or more frames, wherein each of the frames includes a plurality of power control groups (PCGs). The apparatus determines a FL setpoint. If the FL setpoint is less than a maximum setpoint value by an amount greater than a predetermined value, the apparatus autonomously enables DRX to receive a predetermined subset of PCGs among the plurality of PCGs.
Abstract:
Methods and apparatus for of tracking network system timing are provided. In one aspect, a method for wireless communication comprises determining a probability of passing an accessibility test for accessing a network. The method further includes comparing the determined probability to a threshold. The method further includes selectively performing a backoff procedure for a period of time based on the comparison.
Abstract:
Various aspects of the present disclosure are directed to apparatuses and methods that can mitigate the undesirable effects of residual side band (RSB) signal by actively re-tuning the local oscillator of a transmitter to be at or near the center frequency of the carrier. Other aspects, embodiments, and features are also claimed and described.
Abstract:
Aspects of the present disclosure can improve the round trip time delay of reverse link transmissions of an access terminal. The access terminal determines a first traffic-to-pilot power (T2P) ratio after a session negotiation. Then, the access terminal determines a second T2P ratio of a first subpacket of a physical layer packet, wherein the second T2P ratio may be boosted relative to the first T2P ratio. The access terminal transmits the at least one subpacket at the second T2P ratio utilizing a reverse link. Therefore, the physical layer packet may be early terminated, and round trip time delay of the reverse link may be reduced.
Abstract:
A method for performing mobile receive diversity may include: enabling a first receive chain associated with a first radio access technology (RAT) to receive one or more signals from a second RAT; receiving second RAT signals on a second receive chain; enabling receive diversity on a modem associated with a second receive chain; generating, by a diversity receiver, a receive diversity signal based on the one or more second RAT signals received by the first receive chain during periods of time the first receive chain does not receive a signal from the first RAT; and outputting the generated receive diversity signal to a decoder for the second RAT.
Abstract:
Systems and methods for modem control based on feedback are disclosed. In one embodiment, a modem observer module is associated with software within a computing device. The modem observer receives information from the modem relating to uplink bandwidth availability and/or network conditions that may impact uplink bandwidth. Based on the uplink bandwidth availability at the modem, the modem observer may throttle or limit the number of connections that are active by the applications.
Abstract:
This disclosure provides systems, methods, and apparatus for antenna switching for simultaneous communication. One apparatus embodiment includes a plurality of antennas including a first antenna, a second antenna, and a third antenna. The wireless communication apparatus further includes a plurality of receive circuits including a first receive circuit, at least two of the plurality of receive circuits each configured to simultaneously receive, with respect to the other, wireless communications from a different one of at least two networks relating to different radio access technologies. The wireless communication apparatus further includes a controller configured to selectively switch the first receive circuit from receiving wireless communications via the first antenna to receive wireless communications via the second antenna based on one or more performance characteristics of at least one of the first antenna and the second antenna. Other aspects, embodiments, and features are also claimed and described.
Abstract:
Access terminals are adapted to facilitate reception of overhead messages. According to one example, an access terminal can determine whether it is at least substantially stationary. The access terminal may receive one or more sequence numbers corresponding to a subsequent overhead message. In response to being at least substantially stationary, the access terminal can ignore the subsequent overhead message when the corresponding sequence numbers are the same as stored sequence numbers corresponding to a previously obtained overhead message, even when the previously obtained overhead message is more than six hundred seconds old. According to another example, a network node may transmit an overhead message including a corresponding sector indicator and sequence numbers. When the sector indicator and the sequence numbers are the same as a previously received and stored sector indicator and sequence numbers, the access terminal can ignore the overhead message. Other aspects, embodiments, and features are also included.