# US 12,010,695 B2 · Uplink beam indication with activated beams

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- Number: US 12,010,695 B2
- Document ID: US12010695B2
- Status: Granted
- Kind: B2
- Application number: 17/319,775
- Filed: 2021-05-13
- Published: 2021-11-18
- Granted: 2024-06-11
- Earliest claimed: 2020-05-14
- Assignees: Ofinno, LLC
- Applicants: Ofinno, LLC
- Inventors: Jonghyun Park; Esmael Hejazi Dinan; Yunjung Yi; Hua Zhou
- Web page: https://patentgrep.com/patent/US12010695B2

## CPC

- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04B 7/0408: using two or more beams, i.e. beam diversity
- H04B 7/0617: {for beam forming}
- H04B 7/06952: {Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping}
- H04B 7/0837: {using pre-detection combining (H04B7/0868 takes precedence)}
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- 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)}
- H04L 25/0224: {using sounding signals}
- H04W 72/046: {the resource being in the space domain, e.g. beams}
- H04W 72/1268: of uplink data flows
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)}
- H04L 5/0023: {Time-frequency-space}
- H04W 36/0069: {in case of dual connectivity, e.g. decoupled uplink/downlink}
- H04W 52/0229: {where the received signal is a wanted signal}
- H04W 52/14: Separate analysis of uplink or downlink
- H04W 52/146: {Uplink power control}
- Y02D 30/70: in wireless communication networks
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

In an embodiment, a wireless device receives configuration parameters of a plurality of uplink (UL) transmission configuration indicator (TCI) codepoints. A first codepoint of the plurality of UL TCI codepoints indicates that an activated downlink (DL) TCI state is applicable for UL signal transmission. A second codepoint of the plurality of UL TCI codepoints indicates that a sounding reference signal resource indicator (SRI) is applicable for UL signal transmission. The wireless device receives a control command indicating a codepoint and determines a spatial domain filter based on the indicated codepoint being one of the plurality of UL TCI codepoints. The spatial domain filter is determined using: the activated DL TCI state based on the indicated codepoint being the first codepoint; and the SRI based on the indicated codepoint being the second codepoint. The wireless device transmits the UL signal using the determined spatial domain filter.

## Claims

### Claim 1

A method comprising:
receiving, by a wireless device, configuration parameters of a plurality of uplink (UL) transmission configuration indicator (TCI) codepoints, wherein the plurality of UL TCI codepoints comprise:
a first codepoint indicating that an activated downlink (DL) TCI state is applicable for an UL signal transmission; and
a second codepoint indicating that a sounding reference signal resource indicator (SRI) is applicable for the UL signal transmission;
receiving a control command indicating:
a codepoint for an UL signal; and
a panel associated with the wireless device, wherein the panel is determined based on at least one of wireless channel condition or beam blockage condition;
determining a spatial domain filter based on the indicated codepoint being one of the plurality of UL TCI codepoints, wherein the spatial domain filter is determined using:
the activated DL TCI state in response to the indicated codepoint being the first codepoint; and
the SRI in response to the indicated codepoint being the second codepoint; and
transmitting the UL signal using the determined spatial domain filter via the panel indicated by the control command.

### Claim 2 (depends on 1)

The method of claim 1, wherein the indicated codepoint is the first codepoint, and wherein the determining further comprises:
determining, based on the configuration parameters of the plurality of UL TCI codepoints, the spatial domain filter using the activated DL TCI state indicated by the first codepoint.

### Claim 3 (depends on 1)

The method of claim 1, wherein the indicated codepoint is the second codepoint, and wherein the determining further comprises:
determining, based on the configuration parameters of the plurality of UL TCI codepoints, the spatial domain filter using the SRI indicated by the second codepoint.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
receiving one or more messages indicating a plurality of downlink transmit-configuration-indicator (DL TCI) states for a physical downlink shared channel (PDSCH).

### Claim 5 (depends on 4)

The method of claim 4, further comprising:
receiving a medium access control-control element (MAC-CE) message activating one or more DL TCI states of the plurality of DL TCI states.

### Claim 6 (depends on 5)

The method of claim 5, wherein the activated DL TCI state, indicated by the first codepoint, comprises one of the one or more DL TCI states activated by the MAC-CE message.

### Claim 7 (depends on 1)

The method of claim 1, wherein the DL TCI state comprises a DL reference signal (RS).

### Claim 8 (depends on 1)

The method of claim 1, wherein the second codepoint comprises an uplink reference signal (RS) index comprising the SRI.

### Claim 9 (depends on 1)

The method of claim 1, wherein the uplink signal comprises at least one of:
a transport block via a physical uplink shared channel (PUSCH);
a demodulation reference signal (DMRS);
an uplink control information (UCI) via a physical uplink control channel (PUCCH);
a sounding reference signal (SRS); or
a signal via a physical random access channel (PRACH).

### Claim 10 (depends on 1)

The method of claim 1, wherein the receiving the configuration parameters further comprises receiving one or more radio resource control (RRC) messages comprising the configuration parameters.

### Claim 11

A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive configuration parameters of a plurality of uplink (UL) transmission configuration indicator (TCI) codepoints, wherein the plurality of UL TCI codepoints comprise:
a first codepoint indicating that an activated downlink (DL) TCI state is applicable for an UL signal transmission; and
a second codepoint indicating that a sounding reference signal resource indicator (SRI) is applicable for the UL signal transmission;
receive a control command indicating:
a codepoint for an UL signal; and
a panel associated with the wireless device, wherein the panel is determined based on at least one of wireless channel condition or beam blockage condition;
determine a spatial domain filter based on the indicated codepoint being one of the plurality of UL TCI codepoints, wherein the spatial domain filter is determined using:
the activated DL TCI state in response to the indicated codepoint being the first codepoint; and
the SRI in response to the indicated codepoint being the second codepoint; and
transmit the UL signal using the determined spatial domain filter via the panel indicated by the control command.

### Claim 12 (depends on 11)

The wireless device of claim 11, wherein the indicated codepoint is the first codepoint, and wherein to determine the spatial domain filter, the instructions further cause the wireless device to:
determine, based on the configuration parameters of the plurality of UL TCI codepoints, the spatial domain filter using the activated DL TCI state indicated by the first codepoint.

### Claim 13 (depends on 11)

The wireless device of claim 11, wherein the indicated codepoint is the second codepoint, and wherein to determine the spatial domain filter, the instructions further cause the wireless device to:
determine, based on the configuration parameters of the plurality of UL TCI codepoints, the spatial domain filter using the SRI indicated by the second codepoint.

### Claim 14 (depends on 11)

The wireless device of claim 11, wherein the instructions further cause the wireless device to:
receive one or more messages indicating a plurality of downlink transmit-configuration-indicator (DL TCI) states for a physical downlink shared channel (PDSCH).

### Claim 15 (depends on 14)

The wireless device of claim 14, wherein the instructions further cause the wireless device to:
receive a medium access control-control element (MAC-CE) message activating one or more DL TCI states of the plurality of DL TCI states.

### Claim 16 (depends on 15)

The wireless device of claim 15, wherein the activated DL TCI state, indicated by the first codepoint, comprises one of the one or more DL TCI states activated by the MAC-CE message.

### Claim 17 (depends on 11)

The wireless device of claim 11, wherein the DL TCI state comprises a DL reference signal (RS).

### Claim 18 (depends on 11)

The wireless device of claim 11, wherein the second codepoint comprises an uplink reference signal (RS) index comprising the SRI.

### Claim 19 (depends on 11)

The wireless device of claim 11, wherein the uplink signal comprises at least one of:
a transport block via a physical uplink shared channel (PUSCH);
a demodulation reference signal (DMRS), an uplink control information (UCI) via a physical uplink control channel (PUCCH);
a sounding reference signal (SRS); or
a signal via a physical random access channel (PRACH).

### Claim 20

A system comprising:
a base station; and
a wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive, from the base station, configuration parameters of a plurality of uplink (UL) transmission configuration indicator (TCI) codepoints, wherein the plurality of UL TCI codepoints comprise:
a first codepoint indicating that an activated downlink (DL) TCI state is applicable for an UL signal transmission; and
a second codepoint indicating that a sounding reference signal resource indicator (SRI) is applicable for the UL signal transmission;
receive, from the base station, a control command indicating:
a codepoint for an UL signal; and
a panel associated with the wireless device, wherein the panel is determined by the base station based on at least one of wireless channel condition or beam blockage condition;
determine a spatial domain filter based on the indicated codepoint being one of the plurality of UL TCI codepoints, wherein the spatial domain filter is determined using:
the activated DL TCI state based on the indicated codepoint being the first codepoint; and
the SRI based on the indicated codepoint being the second codepoint; and
transmit, to the base station, the UL signal using the determined spatial domain filter via the panel indicated by the control command.
