3GPP mmW access link system architecture
Systems, methods, and instrumentalities are disclosed for a wireless transmit/receive unit (WTRU) comprising a processor configured to receive a set of gap patterns, and measurement activities associated therewith, wherein each of the gap patterns includes an identifier for the measurement activity to be performed, and measure a signal pursuant to at least one of the gap patterns to obtain a measurement.
1. A wireless transmit/receive unit (WTRU) for evaluating connectivity in a millimeter wave (mmW) system, the WTRU comprising:
a memory; and
a processor configured to:
send a measurement gap request message associated with a mmW measurement;
receive a first measurement gap pattern for a wide beam measurement of a serving cell and a second measurement gap pattern for a narrow beam measurement of a neighbor cell, and wherein the first measurement gap pattern and the second measurement gap pattern co-exist within a time period; and
perform the wide beam measurement of the serving cell and the narrow beam measurement of the neighbor cell within the time period using the first measurement gap pattern and the second measurement gap pattern that co-exist within the time period.
2. The WTRU of claim 1 , wherein the processor is further configured to send a measurement report that comprises the narrow beam measurement of the neighbor cell.
3. The WTRU of claim 1 , wherein the neighbor cell is a first neighbor cell and the processor is further configured to receive a third measurement gap pattern for a beam measurement of a second neighbor cell.
4. The WTRU of claim 3 , wherein the processor is further configured to perform the beam measurement of the second neighbor cell using the third measurement gap pattern.
5. The WTRU of claim 1 , wherein the measurement gap request message further comprises at least one of a measurement result, a number of neighbor mmW cells detected, a location of the WTRU, or a speed of the WTRU.
6. The WTRU of claim 1 , wherein the measurement gap request message further comprises a measurement gap requirement related to a capability of the WTRU.
7. The WTRU of claim 6 , wherein the measurement gap requirement further comprises at least one of a number of beams supported by the WTRU, a number of phase antenna arrays supported by the WTRU, or a number of simultaneous receive beams supported by the WTRU.
8. The WTRU of claim 1 , wherein at least one of the first measurement gap pattern or the second measurement gap pattern is received by decoding a measurement downlink control information (DCI) in a control channel.
9. The WTRU of claim 1 , wherein at least one of the first measurement gap pattern or the second measurement gap pattern is received by decoding a medium access control (MAC) control element.
10. A method performed by a wireless transmit receive unit (WTRU) for evaluating connectivity in a millimeter wave (mmW) system, the method comprising:
sending a measurement gap request message associated with a mmW measurement;
receiving a first measurement gap pattern for a wide beam measurement of a serving cell and a second measurement gap pattern for narrow beam measurement of a neighbor cell, and wherein the first measurement gap pattern and the second measurement gap pattern co-exist within a time period; and
performing the wide beam measurement of the serving cell and the narrow beam measurement of the neighbor cell within the time period using the first measurement gap pattern and the second measurement gap pattern that co-exist within the time period.
11. The method of claim 10 , further comprising sending a measurement report that comprises the narrow beam measurement of the neighbor cell.
12. The method of claim 10 , wherein the neighbor cell is a first neighbor cell and the method further comprises receiving a third measurement gap pattern for a beam measurement of a second neighbor cell.
13. The method of claim 12 , further comprising performing the beam measurement of the second neighbor cell using the third measurement gap pattern.
14. The method of claim 10 , wherein the measurement gap request message further comprises at least one of a measurement result, a number of neighbor mmW cells detected, a location of the WTRU, or a speed of the WTRU.
15. The method of claim 10 , wherein the measurement gap request message further comprises a measurement gap requirement related to a capability of the WTRU.
16. The method of claim 15 , wherein the measurement gap requirement further comprises at least one of a number of beams supported by the WTRU, a number of phase antenna arrays supported by the WTRU, or a number of simultaneous receive beams supported by the WTRU.
17. The method of claim 10 , wherein at least one of the first measurement gap pattern or the second measurement gap pattern is received by decoding a measurement downlink control information (DCI) in a control channel.
18. The method of claim 10 , wherein at least one of the first measurement gap pattern or the second measurement gap pattern is received by decoding a medium access control (MAC) control element.
19. A wireless transmit/receive unit (WTRU) for evaluating connectivity in a millimeter wave (mmW) system, the WTRU comprising:
a memory; and
a processor configured to:
send a measurement gap request message associated with a mmW measurement;
receive a first measurement gap pattern for a wide beam measurement of a serving cell and a second measurement gap pattern for a narrow beam measurement of a neighbor cell, and wherein the first measurement gap pattern and the second measurement gap pattern co-exist within a time period;
perform the wide beam measurement of the serving cell and the narrow beam measurement of the neighbor cell within the time period using the first measurement gap pattern and the second measurement gap pattern that co-exist within the time period; and
send a measurement report that comprises the narrow beam measurement of the neighbor cell.
20. The WTRU of claim 19 , wherein the measurement report further comprises the wide beam measurement of the serving cell.