IP Library › Granted Patent US 12,323,835
Granted Patent B2
US 12,323,835 · App. 17/385,431 · Granted Jun 3, 2025

Reporting channel state information in a multiple component carrier network

Inventors: Timo Erkki Lunttila (Espoo, FI); Esa Tapani Tiirola (Kempele, FI); Kari Pekka Pajukoski (Oulu, FI); Kari Juhani Hooli (Oulu, FI)
Assignee: WIRELESS FUTURE TECHNOLOGIES INC.
H04W24/10H04L1/0026H04L1/0029H04L1/0031H04L5/001H04L5/0057H04L5/0091H04W72/0453H04W72/21H04W72/56H04L5/0053H04W72/542H04W88/08
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Quick Facts
Patent No.
US 12,323,835
App. No.
17/385,431
Granted
Jun 3, 2025
Kind
B2
Abstract

A user equipment (UE) may determine channel state information (CSI) reports with each CSI report being related to a component carrier. The UE may send a subframe with CSI report(s) on a physical uplink control channel (PUCCH). When a collision occurs in the subframe having the CSI report(s) on the PUCCH a lower priority CSI report may be dropped from the transmission.

Claims (17)

1. A method for use in a user equipment (UE), the method comprising:

when two channel state information (CSI) reports are to be transmitted on a physical uplink channel in a same subframe, and each of the two of CSI reports relate to a respective one of a plurality of component carriers, and one of the two CSI reports is a CSI report containing a Rank Indicator (RI), and one of the two CSI reports is a CSI report containing a Channel Quality Indicator (CQI), transmitting only the CSI report containing the RI on the physical uplink channel; and

when two CSI reports are to be transmitted on a physical uplink channel in a same subframe, and each of the two of CSI reports relate to a respective one of a plurality of component carriers, and each of the two CSI reports is a CSI report containing a Rank Indicator (RI), transmitting only the CSI report containing a RI associated with a highest priority component carrier.

2. The method of claim 1 , wherein the physical uplink channel is a physical uplink control channel (PUCCH).

3. The method of claim 1 , wherein the CSI reports are to be transmitted every subframe.

4. A user equipment (UE) comprising:

a baseband processor; and

a radio frequency (RF) transceiver,

the baseband processor and RF transceiver configured to, when two channel state information (CSI) reports are to be transmitted on a physical uplink channel in a same subframe, and each of the two of CSI reports relate to a respective one of a plurality of component carriers, and one of the two CSI reports is a CSI report containing a Rank Indicator (RI), and one of the two CSI reports is a CSI report containing a Channel Quality Indicator (CQI), transmit only the CSI report containing the RI on the physical uplink channel, and

when two CSI reports are to be transmitted on a physical uplink channel in a same subframe, and each of the two of CSI reports relate to a respective one of a plurality of component carriers, and each of the two CSI reports is a CSI report containing a Rank Indicator (RI), transmit only the CSI report containing a RI associated with a highest priority component carrier.

5. The UE of claim 4 , wherein the physical uplink channel is a physical uplink control channel (PUCCH).

6. The UE of claim 4 , wherein the baseband processor and RF transceiver are operable to transmit a CSI report every subframe.

7. A non-transitory computer readable storage medium comprising executable code stored thereon that, when executed by a processor, causes a user equipment (UE) to:

when two channel state information (CSI) reports are to be transmitted on a physical uplink channel in a same subframe, and each of the two of CSI reports relate to a respective one of a plurality of component carriers, and one of the two CSI reports is a CSI report containing a Rank Indicator (RI), and one of the two CSI reports is a CSI report containing a Channel Quality Indicator (CQI), transmitting only the CSI report containing the RI on the physical uplink channel; and

when two CSI reports are to be transmitted on a physical uplink channel in a same subframe, and each of the two of CSI reports relate to a respective one of a plurality of component carriers, and each of the two CSI reports is a CSI report containing a Rank Indicator (RI), transmitting only the CSI report containing a RI associated with a highest priority component carrier.

8. The non-transitory computer readable storage medium of claim 7 , wherein the physical uplink channel is a physical uplink control channel (PUCCH).

9. The non-transitory computer readable storage medium of claim 7 , wherein the CSI reports are to be transmitted every subframe.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 12, 2023
From: LUNTTILA, TIMO ERKKI; TIIROLA, ESA TAPANI; PAJUKOSKI, KARI PEKKA; HOOLI, KARI JUHANI
To: NOKIA SIEMENS NETWORKS OY
Reel/Frame 064879/0087 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 12, 2023
From: NOKIA SOLUTIONS AND NETWORKS OY
To: WIRELESS FUTURE TECHNOLOGIES INC.
Reel/Frame 064879/0185 →
CHANGE OF NAME Recorded Sep 12, 2023
From: NOKIA SIEMENS NETWORKS OY
To: NOKIA SOLUTIONS AND NETWORKS OY
Reel/Frame 064881/0363 →
Continuity (6)
Continuation 16780452 · Feb 3, 2020
Continuation 15483699 · Apr 10, 2017
Continuation 15137940 · Apr 25, 2016
Continuation 13948852 · Jul 23, 2013
Continuation 12752572 · Apr 1, 2010
Related Publication 20210368376A1 · Nov 25, 2021
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