Transceiver configuration for millimeter wave wireless communications
Methods, systems, and devices are described for transceiver architecture for millimeter wave wireless communications. A device may include two transceiver chip modules configured to communicate in different frequency ranges. The first transceiver chip module may include a baseband sub-module, a first radio frequency front end (RFFE) component and associated antenna array. The second transceiver chip module may include a second RFFE component and associated antenna array. The second transceiver chip module may be separate from the first transceiver chip module. The second transceiver chip module may be electrically coupled to the baseband sub-module of the first transceiver chip module.
1. A method of wireless communication at a millimeter wave (mmW) base station, comprising:
determining that a target throughput is greater than a threshold;
determining that a transceiver for a target wireless device is available, the transceiver operating in a first mmW frequency range;
performing a beam sweep operation on beams created by two or more arrays of a plurality of antenna arrays;
selecting an array from the plurality of antenna arrays for communication with the target wireless device based at least in part on the beam sweep operation; and
transmitting a handoff signal to the target wireless device based at least in part on the determination that the target throughput is greater than the threshold, the determination that the transceiver is available, and the beam sweep operation, wherein the handoff signal directs the target wireless device to use the transceiver for communication.
2. The method of claim 1 , further comprising:
transmitting an activation signal to the target wireless device directing the target wireless device to activate the transceiver; and
communicating with the target wireless device using the selected array and the transceiver.
3. The method of claim 1 , further comprising:
selecting an initial array from the plurality of antenna arrays for the beam sweep operation, wherein performing the beam sweep operation comprises sweeping through each of a first plurality of beams associated with the initial array.
4. The method of claim 1 , further comprising:
determining that a channel parameter associated with the array satisfies a threshold condition based at least in part on the beam sweep operation, wherein selecting the array is based at least in part on the determination.
5. The method of claim 1 , wherein a first array of the plurality of antenna arrays is located at an opposite side of the mmW base station relative to a second array of the plurality of antenna arrays based at least in part on a spatial diversity configuration.
6. The method of claim 1 , wherein at least one array of the plurality of antenna arrays is configured for operation in a mmW frequency range.
7. An apparatus for wireless communications at a millimeter wave (mmW) base station, comprising:
a processor, memory coupled with the processor;
and instructions stored in the memory and executable by the processor to cause the apparatus to:
determine that a target throughput is greater than a threshold;
determine that a transceiver for a target wireless device is available, the transceiver operating in a first mmW frequency range;
perform a beam sweep operation on beams created by two or more arrays of a plurality of antenna arrays;
select an array from the plurality of antenna arrays for communication with the target wireless device based at least in part on the beam sweep operation; and
transmit a handoff signal to the target wireless device based at least in part on the determination that the target throughput is greater than the threshold, the determination that the transceiver is available, and the beam sweep operation, wherein the handoff signal directs the target wireless device to use the transceiver for communication.
8. The apparatus of claim 7 , wherein the instructions are further executable by the processor to cause the apparatus to:
transmit an activation signal to the target wireless device directing the target wireless device to activate the transceiver; and
communicate with the target wireless device using the selected array and the transceiver.
9. The apparatus of claim 7 , wherein the instructions are further executable by the processor to cause the apparatus to:
select an initial array from the plurality of antenna arrays for the beam sweep operation, wherein performing the beam sweep operation comprises sweeping through each of a first plurality of beams associated with the initial array.