# US 12,010,055 B2 · Resource counting for reference signals

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- Number: US 12,010,055 B2
- Document ID: US12010055B2
- Status: Granted
- Kind: B2
- Application number: 17/437,750
- Filed: 2021-03-31
- Published: 2023-01-19
- Granted: 2024-06-11
- Earliest claimed: 2021-03-31
- Assignees: Apple Inc.
- Applicants: Apple Inc.
- Inventors: Haitong Sun; Gokhan Ozer; Yeong-Sun Hwang; Yushu Zhang; Wei Zeng; Dawei Zhang; Manasa Raghavan; Jie Cui; Weidong Yang; Amir Aminzadeh Gohari; Ghaith N. Hattab; Yang Tang; Ismael Gutierrez Gonzalez; Ziyang Ju
- Web page: https://patentgrep.com/patent/US12010055B2

## CPC

- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04B 7/0632: {Channel quality parameters, e.g. channel quality indicator [CQI]}
- H04B 7/0695: {using beam selection}
- H04B 7/06952: {Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04L 5/0026: {Division using four or more dimensions, e.g. beam steering or quasi-co-location [QCL]}
- H04L 27/261: {Details of reference signals}
- H04L 41/08: Configuration management of networks or network elements (address allocation H04L61/50)
- H04L 69/24: Negotiation of communication capabilities
- H04L 2025/03783: {Details of reference signals}
- H04W 28/16: Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04B: TRANSMISSION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

This disclosure relates to techniques for performing wireless communications including exchanging information related to capability of processing reference signals. A user equipment device may provide capability information to a network. The capability information may indicate a number of reference signal resources that the user equipment device can process in a slot or other defined period of time. The user equipment device and the network may share a common set of definitions, counting rules, and approaches for interpreting the capability information. The network may configure reference signals for the user equipment device.

## Claims

### Claim 1

An apparatus, comprising:
a processor configured to cause a user equipment device (UP to:
establish communication with a base station;
determine a first number of reference signal resources that the UE is capable of processing during an amount of time for a beam management measurement using a second number of ports, wherein the first number of reference signal resources is determined based on a function of the second number of ports and is different than a third number of reference signal resources that the UE is capable of processing during the amount of time for the beam management measurement using a single port;
transmit, to the base station, an indication of the first number of reference signal resources;
receive, from the base station, configuration information for the beam management measurement using the second number of ports;
receive, from the base station, a reference signal using the second number of ports; and
perform the beam management measurement based on the reference signal.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the function of the second number of ports is based on an orthogonal cover code order.

### Claim 3 (depends on 2)

The apparatus of claim 2, wherein the orthogonal cover code order is based on a product of a frequency domain orthogonal cover code order and a time domain orthogonal cover code order.

### Claim 4 (depends on 2)

The apparatus of claim 2, wherein the orthogonal cover code order is based on a code division multiplexing type.

### Claim 5 (depends on 4)

The apparatus of claim 4, wherein:
if the code division multiplexing type indicates no code division multiplexing, then a respective reference signal resource is counted a single time in the determination of the first number; and
if the code division multiplexing type indicates code division multiplexing, then the respective reference signal resource is counted multiple times in the determination of the first number.

### Claim 6 (depends on 1)

The apparatus of claim 1, wherein, according to the function of the second number of ports, the first number is equal to the second number of ports.

### Claim 7 (depends on 1)

The apparatus of claim 1, wherein, according to the function, the first number is equal to a lessor of:
the second number of ports; and
a configured maximum value.

### Claim 8 (depends on 1)

The apparatus of claim 1, wherein the beam management measurement includes one or more of:
layer 1 signal to interference and noise ratio measurement; or
beam measurement based on a synchronization signal block or channel state information reference signal.

### Claim 9 (depends on 1)

The apparatus of claim 1, wherein the processor is further configured to cause the UE to:
receive, from the base station, configuration information, the configuration information comprising channel state information (CSI) reporting settings, wherein the function is based on:
a number of times that a first resource is referenced in the CSI reporting settings; and
the second number of ports.

### Claim 10 (depends on 1)

The apparatus of claim 1, wherein the beam management measurement includes pathloss measurement.

### Claim 11 (depends on 1)

The apparatus of claim 1, wherein the beam management measurement includes one or more of:
beam failure detection;
radio link monitoring;
new beam identification;
Layer 1 RSRP (L1-RSRP) measurement;
Layer 1 SINR (L1-SINR) measurement; and
path loss measurement.

### Claim 12 (depends on 1)

The apparatus of claim 1, wherein, according to the function, the first number is as indicated in the #RS column of the following table:
CDM group
#RS
Row
Ports X
Density ρ
cdm-Type
(k, l)
index j
k′
l′
1
1
1
3
noCDM
(k0, l0), (k0 + 4, l0), (k0 + 8, l0)
0, 0, 0
0
0
1
2
1
1, 0.5
noCDM
(k0, l0),
0
0
0
2
3
2
1, 0.5
fd-CDM2
(k0, l0),
0
0, 1
0
2
4
4
1
fd-CDM2
(k0, l0), (k0 + 2, l0)
0, 1
0, 1
0
2
5
4
1
fd-CDM2
(k0, l0), (k0, l0 + 1)
0, 1
0, 1
0
2
6
8
1
fd-CDM2
(k0, l0), (k1, l0), (k2, l0), (k3, l0)
0, 1, 2, 3
0, 1
0
2
7
8
1
fd-CDM2
(k0, l0), (k1, l0), (k0, l0 + 1), (k1, l0 + 1)
0, 1, 2, 3
0, 1
0
4
8
8
1
cdm4-
(k0, l0), (k1, l0)
0, 1
0, 1
0, 1
FD2-TD2
2
9
12
1
fd-CDM2
(k0, l0), (k1, l0), (k2, l0),
0, 1, 2, 3, 4, 5
0, 1
0
(k3, l0), (k4, l0), (k5, l0)
4
10
12
1
cdm4-
(k0, l0), (k1, l0), (k2, l0)
0, 1, 2
0, 1
0, 1
FD2-TD2
2
11
16
1, 0.5
fd-CDM2
(k0, l0), (k1, l0), (k2, l0),
0, 1, 2, 3,
0, 1
0
(k3, l0), (k0, l0 + 1), (k1, l0 + 1),
4, 5, 6, 7
(k2, l0 + 1), (k3, l0 + 1)
4
12
16
1, 0.5
cdm4-
(k0, l0), (k1, l0), (k2, l0), (k3, l0)
0, 1, 2, 3
0, 1
0, 1
FD2-TD2
2
13
24
1, 0.5
fd-CDM2
(k0, l0), (k1, l0), (k2, l0), (k0, l0 + 1),
0, 1, 2, 3, 4, 5,
0, 1
0
(k1, l0 + 1), (k2, l0 + 1), (k0, l1),
6, 7, 8, 9, 10, 11
(k1, l1), (k2, l1), (k0, l1 + 1), (k1, l1 + 1),
(k2, l1 + 1)
4
14
24
1, 0.5
cdm4-
(k0, l0), (k1, l0), (k2, l0), (k0, l1),
0, 1, 2, 3, 4, 5
0, 1
0, 1
FD2-TD2
(k1, l1), (k2, l1)
8
15
24
1, 0.5
cdm8-
(k0, l0), (k1, l0), (k2, l0)
0, 1, 2
0, 1
0, 1,
FD2-TD2
2, 3
2
16
32
1, 0.5
fd-CDM2
(k0, l0), (k1, l0), (k2, l0),
0, 1, 2, 3,
0, 1
0
(k3, l0), (k0, l0 + 1), (k1, l0 + 1),
4, 5, 6, 7,
(k2, l0 + 1), (k3, l0 + 1), (k0, l1),
8, 9, 10, 11,
(k1, l1), (k2, l1), (k3, l1), (k0, l1 + 1),
12, 13, 14, 15
(k1, l1 + 1), (k2, l1 + 1), (k3, l1 + 1)
4
17
32
1, 0.5
cdm4-
(k0, l0), (k1, l0), (k2, l0), (k3, l0),
0, 1, 2, 3, 4, 5,
0, 1
0, 1
FD2-TD2
(k0, l1), (k1, l1), (k2, l1), (k3, l1)
6, 7
8
18
32
1, 0.5
cdm8-
(k0, l0), (k1, l0), (k2, l0), (k3, l0)
0, 1, 2, 3
0, 1
0, 1,
FD2-TD4
2, 3.

### Claim 13

An apparatus, comprising:
a processor configured to cause a base station to:
establish communication with a user equipment device (UE);
receive, from the UE, a message including an indication of a capability of the LIE for the maximum number of reference signals that the UE can process during a period of time using a single port;
determine a configured number of reference signals using a larger number of ports that the UE can process during the period of time, wherein the determination of the configured number of reference signals is based on the indication and a function of the larger number of ports, wherein the larger number of ports is greater than one; and
transmit the configured number of reference signals to the UE during the period of time.

### Claim 14 (depends on 13)

The apparatus of claim 13, wherein the processor is further configured to cause the base station to:
receive, from the UE a report of a first beam management measurement based on the configured number of reference signals to the UE during the period of time.

### Claim 15 (depends on 14)

The apparatus of claim 14, wherein the determination of the configured number of reference signals is further based on an indication that the UE supports performing layer 1 reference signal received power measurements using at least two ports.

### Claim 16 (depends on 14)

The apparatus of claim 14, wherein the first beam management measurement is a pathloss measurement, wherein the processor is further configured to cause the base station to
determine a second configured number of reference signals using the larger number of ports, wherein the second configured number of reference signals is associated with candidate beam detection.

### Claim 17 (depends on 13)

The apparatus of claim 13, wherein the message further includes an indication that the UE supports candidate beam detection measurements using more than one port.

### Claim 18 (depends on 13)

The apparatus of claim 13, wherein the larger number of ports is a maximum number of ports for a pathloss measurement.

### Claim 19

A user equipment device (LIE), comprising:
a radio; and
a processor operably connected to the radio and configured to cause the UE to:
establish communication with a base station;
determine:
a first number of reference signal resources that the UE is capable of processing during an amount of time for a beam management measurement, and
a second number of ports that the UE is capable of processing during the amount of time for the beam management measurement, wherein the second number is greater than one;
transmit, to the base station:
an indication of the first number of reference signal resources; and
an indication of the second number of ports;
receive, from the base station a reference signal using the second number of ports; and
perform the beam management measurement based on the reference signal.

### Claim 20 (depends on 19)

The UE of claim 19, wherein the beam management measurement includes one or more of:
beam failure detection;
radio link monitoring;
Layer 1 RSRP (L1-RSRP) measurement;
Layer 1 SINR (L1-SINR) measurement; and
path loss measurement.