Method and apparatus for a millimeter wave communication system

Patent metadata

Field	Value
Publication number	US-12114247-B2
Application number	US-202117494589-A
Country	US
Kind code	B2
Filing date	Oct 5, 2021
Priority date	Dec 8, 2011
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

Methods and apparatuses for millimeter wave (mmW) beam acquisition are disclosed. An apparatus may include a processor and a transceiver configured to receive a plurality of signals. The plurality of signals may be swept over time using a respective plurality of beams, and each signal of the plurality of signals may include a sequence based on an index of a respective one of the plurality of beams. The processor and the transceiver may take a measurement of a first signal of the plurality of signals. The transceiver may transmit a measurement report including the measurement of the first signal of the plurality of signals and the index of a respective one of the plurality of beams.

First claim

The invention claimed is:

1. A wireless transmit/receive unit (WTRU) comprising:
a processor; and
a transceiver;
the processor and a transceiver configured to receive a plurality of signals, wherein the plurality of signals is swept over time using a respective plurality of beams, wherein each signal of the plurality of signals includes a sequence based on an index of a respective one of the plurality of beams;
the processor and the transceiver configured to take a measurement of a first signal of the plurality of signals; and
the processor and the transceiver configured to transmit a measurement report including the measurement of the first signal of the plurality of signals and the index of a respective one of the plurality of beams.

2. The WTRU of claim 1 further comprising the processor and the transceiver configured to receive, prior to receiving the plurality of signals, measurement configuration information, wherein the measurement configuration information includes the index of a respective one of the plurality of beams and a signal strength threshold for reporting the measurement.

3. The WTRU of claim 2 , wherein the measurement configuration information is received from a Long-Term Evolution (LTE) network node and the first signal is for a non-LTE network node.

4. The WTRU of claim 3 , wherein the non-LTE network node is a millimeter wave network node.

5. The WTRU of claim 2 wherein the measurement configuration information includes an indication of a frame and a subframe to take measurements of at least one of the plurality of signals, wherein the frame and subframe are of a Long-Term Evolution (LTE) network node that transmitted the measurement configuration information.

6. The WTRU of claim 1 , wherein each of the plurality of signals are beacons.

7. A method comprising:
receiving, by a wireless transmit/receive unit (WTRU),
a plurality of signals, wherein the plurality of signals is swept over time using a respective plurality of beams, wherein each signal of the plurality of signals includes a sequence based on an index of a respective one of the plurality of beams;
measuring, by the WTRU, a first signal of the plurality of signals; and
transmitting, by the WTRU, a measurement report including the measurement of the first signal of the plurality of signals and the index of a respective one of the plurality of beams.

8. The method of claim 7 further comprising, prior to receiving the plurality of signals, receiving, by the WTRU, measurement configuration information, wherein the measurement configuration information includes the index of a respective one of the plurality of beams and a signal strength threshold for reporting the measurement.

9. The method of claim 8 , wherein the measurement configuration information is received from a Long-Term Evolution (LTE) network node and the first signal is for a non-LTE network node.

10. The method of claim 9 , wherein the non-LTE network node is a millimeter wave network node.

11. The method of claim 8 , wherein the measurement configuration information includes an indication of a frame and a subframe to take measurements of at least one of the plurality of signals, wherein the frame and subframe are of a Long-Term Evolution (LTE) network node that transmitted the measurement configuration information.

12. The method of claim 7 , wherein each of the plurality of signals are beacons.

13. A network node comprising:
a processor; and
a transceiver;
the processor and the transceiver configured to transmit a plurality of signals using a respective plurality of beams, wherein the plurality of signals is swept over time using the respective plurality of beams, wherein each signal includes a sequence;
the processor configured to produce each sequence based on an index of a respective one of the plurality of beams; and
the processor and the transceiver configured to receive a measurement report including a measurement of a first signal of the plurality of signals and the index of a respective one of the plurality of beams.

14. The network node of claim 13 , the processor and the transceiver configured to transmit measurement configuration information, wherein the measurement configuration information includes the index of a respective one of the plurality of beams and a signal strength threshold for reporting the measurement.

15. The network node of claim 13 , wherein the network node is a millimeter wave network node.

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Wang Carl
• Li Yingxue K
• Sahin Onur
• Pietraski Philip J
• Pragada Ravikumar V
• Charlton Gregg A

Classifications

• H04W88/02

  Terminal devices · CPC title

• H04W40/12 Primary

  based on transmission quality or channel quality · CPC title

• H04W36/0079

  in case of hand-off failure or rejection · CPC title

• H04W36/14

  Reselecting a network or an air interface · CPC title

• H04W36/0055

  Transmission or use of information for re-establishing the radio link · CPC title