System and method for enabling coordinated beam switching and scheduling
First Claim
1. A method for controller operation, the method comprising:
- indicating that the controller is operating in a cooperative beam switching mode with one or more other controllers;
transmitting a beam formed reference signal (BFRS), wherein the BFRS is beam formed using a plurality of beam patterns, and wherein a beam pattern used in beam forming the BFRS changes once per transmission unit;
receiving an indicator of a transmission unit having a highest quality measurement of a communications channel between the controller and a communications device, and receiving the measurement of the communications channel, from each communications device being served by the controller;
receiving a transmission intended for a communications device; and
causing the transmission to be transmitted to the communications device, wherein the transmission is transmitted using the measurement of the communications channel and the indicator from the communications device.
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Accused Products
Abstract
A system and method for enabling coordinated beam switching and scheduling in a wireless communications system. A method for controller operation includes indicating that the controller is operating in a cooperative beam switching mode, transmitting a beam formed reference signal (BFRS), from each communications device being served by the controller, receiving a measurement of a communications channel between the controller and the communications device and an indicator indicating a transmission unit corresponding to the measurement of the communications channel, receiving a transmission intended for a communications device, and causing the transmission to be transmitted to the communications device. The BFRS is beam formed using a plurality of beam patterns, the beam pattern used in beam forming the BFRS changes once per transmission unit, and the transmission is transmitted using measurement of the communications channel and the indicator from the communications device.
40 Citations
22 Claims
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1. A method for controller operation, the method comprising:
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indicating that the controller is operating in a cooperative beam switching mode with one or more other controllers; transmitting a beam formed reference signal (BFRS), wherein the BFRS is beam formed using a plurality of beam patterns, and wherein a beam pattern used in beam forming the BFRS changes once per transmission unit; receiving an indicator of a transmission unit having a highest quality measurement of a communications channel between the controller and a communications device, and receiving the measurement of the communications channel, from each communications device being served by the controller; receiving a transmission intended for a communications device; and causing the transmission to be transmitted to the communications device, wherein the transmission is transmitted using the measurement of the communications channel and the indicator from the communications device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for communications device operation, the method comprising:
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measuring a communications channel between the communications device and a controller for each beam pattern in a beam formed reference signal (BFRS) transmitted by the controller, wherein the BFRS is beam formed using a plurality of beam patterns, and wherein a beam pattern used in beam forming the BFRS changes once per transmission unit; selecting a communications channel measurement having a highest quality value, and selecting an indicator indicating a transmission unit corresponding to the selected communications channel measurement; and transmitting the communications channel measurement and the indicator to the controller. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A communications system comprising:
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a plurality of wireless controllers, wherein an in-use subset of the wireless controllers is wirelessly coupled to at least one communications device in a plurality of communications devices, wherein a subset of the plurality of wireless controllers is operating in a cooperative beam switching mode (CBSM), wherein each of the wireless controllers operating in the CBSM is configured to transmit a unique beam formed reference signal (BFRS), wherein the BFRS is beam formed using a plurality of beam patterns, and wherein a beam pattern used in beam forming the BFRS changes once per transmission unit, and configured to receive a maximum quality measurement of a communications channel, and an indicator of a transmission unit corresponding to the maximum quality measurement, from each of a plurality of communications devices it is serving; and a central controller coupled the plurality of wireless controllers, the central controller is configured to determine a period of the plurality of beam patterns for each wireless controller. - View Dependent Claims (19, 20, 21, 22)
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Specification