Methods and apparatus for vertical beamforming

Abstract

A method and apparatus for determining a vertical beam for reception are disclosed herein. A method in a wireless transmit/receive unit (WTRU) includes that the WTRU may receive a broadcast message from an evolved Node B (eNB) that includes information associated with a plurality of beam reference signals, wherein the information includes at least one set of Physical Random Access Control Channel (PRACH) resources associated with each of the plurality of beam reference signals. Further, the WTRU may measure reference signals transmitted on each of the plurality of beam reference signals. Then, the WTRU may select a beam reference signal from among the plurality of beam reference signals. In addition, the WTRU may transmit a PRACH preamble in a set of resources associated with the selected beam reference signal. The WTRU may then receive further communications from the eNB.

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Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
4G	25/09/2014	ISLD-201409-028	INTERDIGITAL INC	S1 TS Number: TS 136 211 Version No: Illustrative part: ---- Release: S2 TS Number: TS 136 212 Version No: Illustrative part: ---- Release: S3 TS Number: TS 136 213 Version No: Illustrative part: ---- Release: S4 TS Number: TS 136 214 Version No: Illustrative part: ---- Release: S5 TS Number: TS 136 321 Version No: Illustrative part: ---- Release: S6 TS Number: TS 136 331 Version No: Illustrative part: ---- Release: +5 -5	No	Family Member
5G	21/12/2017	ISLD-201711-004	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: Illustrative part: ---- Release: S2 TS Number: TS 138 321 Version No: Illustrative part: ---- Release: S3 TS Number: TS 138 331 Version No: Illustrative part: ---- Release: +2 -2	No	Family Member
5G	20/06/2019	ISLD-201906-026	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: Illustrative part: ---- Release: S2 TS Number: TS 138 321 Version No: Illustrative part: ---- Release: S3 TS Number: TS 138 331 Version No: Illustrative part: ---- Release: +2 -2	No	Family Member

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Publication No	Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
WO2014116928A1	4G	25/09/2014	ISLD-201409-028	INTERDIGITAL INC	S1 TS Number: TS 136 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 136 212 Version No: ---- Section No: Release : ---- S3 TS Number: TS 136 213 Version No: ---- Section No: Release : ---- S4 TS Number: TS 136 214 Version No: ---- Section No: Release : ---- S5 TS Number: TS 136 321 Version No: ---- Section No: Release : ---- S6 TS Number: TS 136 331 Version No: ---- Section No: Release : ---- +5 -5	Yes	Basis Patent
WO2014116928A1	5G	21/12/2017	ISLD-201711-004	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 321 Version No: ---- Section No: Release : ---- S3 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +2 -2	Yes	Basis Patent
WO2014116928A1	5G	20/06/2019	ISLD-201906-026	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 321 Version No: ---- Section No: Release : ---- S3 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +2 -2	Yes	Basis Patent
CN104956606A	4G	25/09/2014	ISLD-201409-028	INTERDIGITAL INC	S1 TS Number: TS 136 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 136 212 Version No: ---- Section No: Release : ---- S3 TS Number: TS 136 213 Version No: ---- Section No: Release : ---- S4 TS Number: TS 136 214 Version No: ---- Section No: Release : ---- S5 TS Number: TS 136 321 Version No: ---- Section No: Release : ---- S6 TS Number: TS 136 331 Version No: ---- Section No: Release : ---- +5 -5	No	Family Member
CN104956606A	5G	21/12/2017	ISLD-201711-004	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 321 Version No: ---- Section No: Release : ---- S3 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +2 -2	No	Family Member
CN104956606A	5G	20/06/2019	ISLD-201906-026	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 321 Version No: ---- Section No: Release : ---- S3 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +2 -2	No	Family Member
EP2949055A1	4G	25/09/2014	ISLD-201409-028	INTERDIGITAL INC	S1 TS Number: TS 136 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 136 212 Version No: ---- Section No: Release : ---- S3 TS Number: TS 136 213 Version No: ---- Section No: Release : ---- S4 TS Number: TS 136 214 Version No: ---- Section No: Release : ---- S5 TS Number: TS 136 321 Version No: ---- Section No: Release : ---- S6 TS Number: TS 136 331 Version No: ---- Section No: Release : ---- +5 -5	No	Family Member
EP2949055A1	5G	21/12/2017	ISLD-201711-004	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 321 Version No: ---- Section No: Release : ---- S3 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +2 -2	No	Family Member
EP2949055A1	5G	20/06/2019	ISLD-201906-026	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 321 Version No: ---- Section No: Release : ---- S3 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +2 -2	No	Family Member
TW201445896A	4G	25/09/2014	ISLD-201409-028	INTERDIGITAL INC	S1 TS Number: TS 136 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 136 212 Version No: ---- Section No: Release : ---- S3 TS Number: TS 136 213 Version No: ---- Section No: Release : ---- S4 TS Number: TS 136 214 Version No: ---- Section No: Release : ---- S5 TS Number: TS 136 321 Version No: ---- Section No: Release : ---- S6 TS Number: TS 136 331 Version No: ---- Section No: Release : ---- +5 -5	No	Family Member
TW201445896A	5G	21/12/2017	ISLD-201711-004	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 321 Version No: ---- Section No: Release : ---- S3 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +2 -2	No	Family Member
TW201445896A	5G	20/06/2019	ISLD-201906-026	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 321 Version No: ---- Section No: Release : ---- S3 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +2 -2	No	Family Member
US2015382205A1	4G	25/09/2014	ISLD-201409-028	INTERDIGITAL INC	S1 TS Number: TS 136 211 Version No: ---- Section No: Release : ---- S2 TS Number: TS 136 212 Version No: ---- Section No: Release : ---- S3 TS Number: TS 136 213 Version No: ---- Section No: Release : ---- S4 TS Number: TS 136 214 Version No: ---- Section No: Release : ---- S5 TS Number: TS 136 321 Version No: ---- Section No: Release : ---- S6 TS Number: TS 136 331 Version No: ---- Section No: Release : ---- +5 -5	No	Family Member
US2015382205A1	5G	21/12/2017	ISLD-201711-004	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 321 Version No: ---- Section No: Release : ---- S3 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +2 -2	No	Family Member
US2015382205A1	5G	20/06/2019	ISLD-201906-026	INTERDIGITAL INC	S1 TS Number: TS 138 213 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 321 Version No: ---- Section No: Release : ---- S3 TS Number: TS 138 331 Version No: ---- Section No: Release : ---- +2 -2	No	Family Member
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Publication No	Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
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Technologies

Resource configuration

Product

Not Available

Use Cases

Wireless communication

Services

Not Available

Claim

1. A method for use in a wireless transmit/receive unit (WTRU) for determining resources, the method comprising:
receiving, by the WTRU, a broadcast message from an evolved Node B (eNB) that includes information associated with a plurality of beam reference signals, wherein the information includes at least one set of Physical Random Access Control Channel (PRACH) resources associated with each of the plurality of beam reference signals; measuring, by the WTRU, the plurality of beam reference signals transmitted from the eNB; selecting, by the WTRU, a beam reference signal from among the plurality of beam references signals; and transmitting, by the WTRU, a PRACH preamble in a set of resources associated with the selected beam reference signal.
2. The method of claim 1, wherein the information associated with the plurality of beam reference signals includes a plurality of measurement configurations.
3. The method of claim 1, wherein the PRACH preamble is transmitted on an allocated frequency associated with the set of resources.
4. The method of claim 1, wherein the WTRU selects a beam reference signal based on a determination that a measured reference signal power is better on at least one beam reference signal.
5. The method of claim 1, wherein the WTRU selects a beam reference signal based on predetermined criteria.
6. The method of claim 1, wherein the at least one set of PRACH resources is portioned based on the number of the plurality of beam reference signals.
7. The method of claim 1, wherein the beam reference signals are beam tracking reference signals.
8. The method of claim 1, wherein the beam reference signals are Channel State Information-Reference Signals (CSI-RSs).
9. The method of claim 1, wherein the beam is a 3-D beam.
10. A wireless transmit/receive unit (WTRU) for determining resources, the WTRU comprising:
a receiver configured to receive a broadcast message from an evolved Node B (eNB) that includes information associated with a plurality of beam reference signals, wherein the information includes at least one set of Physical Random Access Control Channel (PRACH) resources associated with each of the plurality of beam reference signals; a processor, operatively coupled to the receiver, configured to measure the plurality of beam reference signals transmitted from the eNB; the processor further configured to select a beam reference signal from among the plurality of beam references signals; and a transmitter, operatively coupled to the processor, the transmitter and the processor configured to transmit a PRACH preamble in a set of resources associated with the selected beam reference signal.
11. The WTRU of claim 10, wherein the information associated with the plurality of beam reference signals includes a plurality of measurement configurations.
12. The WTRU of claim 10, wherein the PRACH preamble is transmitted on an allocated frequency associated with the set of resources.
13. The WTRU of claim 10, wherein the processor selects a beam reference signal based on a determination that a measured reference signal power is better on at least one beam reference signal.
14. The WTRU of claim 10, wherein the WTRU selects a beam reference signal based on predetermined criteria.
15. The WTRU of claim 10, wherein the at least one set of PRACH resources is portioned based on the number of the plurality of beam reference signal.
16. The WTRU of claim 10, wherein the beam reference signals are beam tracking reference signals.
17. The WTRU of claim 10, wherein the beam reference signals are Channel State Information-Reference Signals (CSI-RSs).
18. The WTRU of claim 10, wherein the beam is a 3-D beam.
19. A method for determining a vertical beam for transmission in an evolved Node B (eNB), the method comprising:
transmitting, by the eNB, a broadcast message to a wireless transmit/receive unit (WTRU) that includes two or more Channel State Information-Reference Signal (CSI-RS) configurations; receiving, by the eNB, a first measurement report from the WTRU including a received signal-to-interference plus noise ratio (SINR) metric for a cell-specific CSI-RS in an uplink subframe; receiving, by the eNB, a second measurement report from the WTRU including an SINR metric for each antenna port in the cell-specific CSI-RS associated with a vertical beam; and transmitting, by the eNB, communications to the WTRU using vertical beam.
20. The method of claim 19, wherein the transmitting communications is based on the first measurement report and the second measurement report.

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