Multi-antenna communication in a wireless network

Patent metadata

Field	Value
Publication number	US-2021410115-A1
Application number	US-202117472042-A
Country	US
Kind code	A1
Filing date	Sep 10, 2021
Priority date	Oct 29, 2003
Publication date	Dec 30, 2021
Grant date	—

Abstract

A wireless communication device may receive with one of N antennas a signal processing message indicating a number up to N signals to process. Each of the N antennas may used to receive a communication. The indicated number of up to N signals may be processed and data from the indicated number of up to N signals recovered.

First claim

1 . A wireless communication device comprising:
a plurality of antennas; a receiver operatively connected to the plurality of antennas; a transmitter operatively connected to the plurality of antennas; and a processor operatively connected to the receiver, transmitter, and the plurality of antennas; the processor is configured to determine a diversity technique out of a plurality of diversity techniques for communication with a wireless network, wherein the diversity techniques include beamforming and spatial diversity; based on the determined diversity technique being spatial diversity:
at least one of the antennas and the receiver are configured to receive, from the wireless network, a signal processing message indicating a number of signals to process;
the receiver and the processor are configured to process the indicated number of signals, wherein the number of signals is more than one and less than a number of the plurality of antennas;
based on that the determined diversity technique being beamforming:
at least one of the antennas, the receiver, and the processor are configured to receive and process a first beam transmitted from the wireless network;
the processor is configured to determine a second beam for transmission based on the processed first beam; and
the processor, the receiver, and at least two of the plurality of antennas are configured to transmit the second beam to the wireless network.

2 . The wireless communication device of claim 1 , wherein the processor determines reception parameters from the first beam and uses the reception parameters from the first beam to produce the second beam.

3 . The wireless communication device of claim 2 , wherein the reception parameters include a set of antennas used to receive the first beam, and wherein the set of antennas are used to produce the second beam.

4 . The wireless communication device of claim 1 , wherein the plurality of antennas include one or more polarized antennas.

5 . The wireless communication device of claim 1 , wherein the processor determines a transmission power control algorithm by selecting between open loop power control and closed loop power control.

6 . The wireless communication device of claim 1 , wherein the indicated number of signals to process is processed by turning off radio frequency (RF) chains.

7 . The wireless communication device of claim 1 , wherein a quality of a plurality of beams is measured.

8 . A method implemented by a wireless communication device, the method comprising:
determining a diversity technique out of a plurality of diversity techniques for communication with a wireless network, wherein the diversity techniques include beamforming and spatial diversity; based on the determined diversity technique being spatial diversity:
receiving, from the wireless network, a signal processing message indicating a number of signals to process;
processing the indicated number of signals, wherein the number of signals is more than one and less than a number of the plurality of antennas;
based on that the determined diversity technique being beamforming:
receiving and processing a first beam transmitted from the wireless network;
determining a second beam for transmission based on the processed first beam; and
transmitting, using at least two antennas of the wireless communications device, the second beam to the wireless network.

9 . The method of claim 8 , further comprising determining reception parameters from the first beam and uses the reception parameters from the first beam to produce the second beam.

10 . The method of claim 9 , wherein the reception parameters include a set of antennas used to receive the first beam, and wherein the set of antennas are used to produce the second beam.

11 . The method of claim 8 , wherein the plurality of antennas include one or more polarized antennas.

12 . The method of claim 8 , further comprising determining a transmission power control algorithm by selecting between open loop power control and closed loop power control.

13 . The method of claim 8 , wherein the indicated number of signals to process is processed by turning off radio frequency (RF) chains.

14 . The method of claim 8 , wherein a quality of a plurality of beams is measured.

Assignees

• Iii Holdings 1 Llc

Inventors

• Warner Robert
• Winters Jack
• Wang James June-Ming

Classifications

• H04B7/0817

  with multiple receivers and antenna path selection · CPC title

• H04B7/0874

  using subgroups of receive antennas · CPC title

• H04B7/0854

  using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion · CPC title

• Y02D30/70

  in wireless communication networks · CPC title

• H04W52/0229

  where the received signal is a wanted signal · CPC title