| 摘要 |
Computer-implemented techniques are presented for a client device to wake up, independent of receiving a beacon signal, and transmit a first pilot signal to establish a link with a base station. Subsequent to waking up, the client device can perform an association process to establish the link with the base station to become “partially associated” with the base station and update the client device information at the base station. The client device information can be stored in a table at the base station, and the table can be a global table that is shared between all base stations in the wireless MIMO network. After establishing a link, the base station can inform the client device whether there is a pending call or data packet for the client device. If there is a pending call or data packet, the client device can become “fully associated” with the base station. |
| 主权项 |
1. A computer-implemented method comprising:
periodically transitioning, at a first computing device including one or more processors, from a standby mode to an active mode at a predetermined rate to establish a link with a second computing device independent of whether the first computing device has data to send to the second computing device, wherein the transitioning from the standby mode to the active mode includes powering on a transmitter and a receiver of the first computing device; transmitting, from the first computing device, a first pilot signal to the second computing device in response to transitioning from the standby mode to the active mode, wherein the first pilot signal represents a first reference signal to be used in establishing an uplink with the second computing device; receiving, at the first computing device, an offset signal from the second computing device, wherein the offset signal is based on the first pilot signal and indicates a desired adjustment for transmissions by the first computing device; adjusting, at the first computing device, a timing of the transmitter of the first computing device based on the offset signal in response to receiving the offset signal; receiving, at the first computing device, a second pilot signal from the second computing device, wherein the second pilot signal represents a second reference signal to be used in establishing a downlink with the second computing device; adjusting, at the first computing device, a timing of the receiver of the first computing device based on the second pilot signal and in response to receiving the second pilot signal; transmitting, from the first computing device, an information signal to the second computing device in response to adjusting of the timing of the transmitter, wherein the information signal causing the second computing device to update information in a table stored at a memory of the second computing device, and wherein the information signal indicates a location of the first computing device and a last wake up time of the first computing device; receiving, at the first computing device, an access signal from the second computing device in response to adjusting of the timing of the receiver and when at least one of (i) the first computing device has data to send to the second computing device, and (ii) the second computing device has data to send to the first computing device, wherein the access signal grants access to the first computing device to a multiple input, multiple output (MIMO) network; transitioning, at the first computing device, from the active mode to the standby mode in response to receiving the access signal; decreasing, at the first computing device, the predetermined rate when there is no pending data to be transmitted between the first computing device and the second computing device; and resetting, at the first computing device, the predetermined rate when there is data to be transmitted between the first computing device and the second computing device. |
