Channel calibration in high density antenna systems
AssigneeCohere Technologies, Inc.
InventorsYoav HEBRON, Shlomo Selim RAKIB, Shachar KONS
Life of this patent
Estimating the term…
Abstract
Methods, systems and devices for wireless communication are described. An example method for wireless communication includes controlling a sweep of channel estimation transmissions across a two-dimensional antenna array comprising N horizontal antennas and M vertical antennas according to an operational condition in a wireless communication network. In one example, a pattern used for the sweep sweeps across horizontal antennas followed by a sweep across vertical antennas. In another example, a pattern used for the sweep sweeps across vertical antennas followed by a sweep across horizontal antennas.
Claims14
A method of wireless communication, comprising:
- receiving, by a receiving device from a transmitting device, a sequence of channel estimation signal transmissions, wherein the sequence is based on relative channel variations in a vertical direction or in a horizontal direction, and wherein the transmitting device is configured with N horizontal antennas and M vertical antennas;
- determining, based on the sequence of the channel estimation signal transmissions, channel state information;
- and
- transmitting, based on the channel state information, scheduling information to the transmitting device,
- wherein transmitting device is further configured, as part of transmitting the sequence of channel estimation signal transmissions, to:
- (a) sweep across the N horizontal antennas followed by repeating sweeps across the M vertical antennas, or
- (b) sweep across the M vertical antennas followed by repeating sweeps across the N horizontal antennas.
An apparatus for wireless communication comprising at least one processor, a memory and transceiver circuitry, wherein the processor is configured to execute instructions from the memory and cause the apparatus to implement a method comprising:
- receiving, by a receiving device from a transmitting device, a sequence of channel estimation signal transmissions, wherein the sequence is based on relative channel variations in a vertical direction or in a horizontal direction, and wherein the transmitting device is configured with N horizontal antennas and M vertical antennas;
- determining, based on the sequence of the channel estimation signal transmissions, channel state information;
- and
- transmitting, based on the channel state information, scheduling information to the transmitting device,
- wherein transmitting device is further configured, as part of transmitting the sequence of channel estimation signal transmissions, to:
- (a) sweep across the N horizontal antennas followed by repeating sweeps across the M vertical antennas, or
- (b) sweep across the M vertical antennas followed by repeating sweeps across the N horizontal antennas.
Dependencies are inferred from the claim text.