IP Library › Granted Patent US 12,368,614
Granted Patent B2
US 12,368,614 · App. 18/248,882 · Granted Jul 22, 2025

Enabling inter carrier interface compensation for interleaved mapping from virtual to physical resource blocks

Inventors: Jung-Fu Cheng (Fremont, CA); Mehrnaz Afshang (Fremont, CA); Dennis Hui (Sunnyvale, CA); Stephen Grant (Pleasanton, CA)
Assignee: Telefonaktiebolaget LM Ericsson (Publ)
H04L25/03821H04L5/0044H04L25/0228H04L27/2602
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Quick Facts
Patent No.
US 12,368,614
App. No.
18/248,882
Granted
Jul 22, 2025
Kind
B2
Abstract

A method, system and apparatus are disclosed for enabling inter carrier interference compensation for interleaved mapping from virtual to physical resource blocks. In one embodiment, a network node is configured to determine to configure the first signal to be located at a subcarrier except at an edge sub-carrier of a resource block, RB; transmit the configuration of the first signal to the WD; and receive a physical uplink shared channel, PUSCH, signaling and the first signal from the WD based at least in part on the determined configuration. In one embodiment, a WD is configured to perform a de-inter-carrier-interference (de-ICI) filter estimation on a first received signal and a second received signal; apply a de-ICI filter to a third received signal, the de-ICI filter being based on the de-ICI filter estimation; and after the application of the de-ICI filter, de-interleaved map and demodulate the third received signal.

Claims (17)

1. A method implemented in a wireless device, WD, configured to communicate with a network node, the method comprising:

performing a de-inter-carrier-interference, de-ICI, filter estimation on a first received signal and a second received signal;

applying a de-ICI filter to a third received signal, the de-ICI filter being based on the de-ICI filter estimation that is performed on the first and second received signals; and

after the application of the de-ICI filter, de-interleaved mapping at least one physical resource block, PRB, associated with the third received signal to at least one other resource block, RB, and demodulating the third received signal, the de-interleaved mapping including mapping from physical resource blocks, PRBs, to virtual resource blocks, VRBs.

2. The method of claim 1 , wherein the first received signal comprises a phase tracking reference signal, PTRS, received by the WD.

3. The method of claim 2 , further comprising:

receiving a configuration for the PTRS to be located at a subcarrier except at an edge subcarrier of a resource block, RB.

4. The method of claim 3 , wherein the second received signal comprises a physical downlink shared channel, PDSCH, signaling that is adjacent to the subcarrier of the PTRS.

5. The method of claim 1 , wherein the third received signal comprises a physical downlink shared channel, PDSCH, signaling.

6. A wireless device, WD, configured to communicate with a network node, the WD comprising processing circuitry, the processing circuitry configured to cause the WD to:

perform a de-inter-carrier-interference, de-ICI, filter estimation on a first received signal and a second received signal;

apply a de-ICI filter to a third received signal, the de-ICI filter being based on the de-ICI filter estimation that is performed on the first and second received signals; and

after the application of the de-ICI filter, de-interleaved map at least one physical resource block, PRB, associated with the third received signal to at least one other resource block, RB, and demodulating the third received signal, the de-interleaved mapping including mapping from physical resource blocks, PRBs, to virtual resource blocks, VRBs.

7. The WD of claim 6 , wherein the processing circuitry is configured to cause the WD to:

receive a configuration for a phase tracking reference signal, PTRS, to be located at a subcarrier except at an edge subcarrier of a resource block, RB.

8. The WD of claim 7 , wherein the second received signal comprises a physical downlink shared channel, PDSCH, signaling that is adjacent to the subcarrier of the PTRS.

9. The WD of claim 6 , wherein the third received signal comprises a physical downlink shared channel, PDSCH, signaling.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2023
From: CHENG, JUNG-FU; AFSHANG, MEHRNAZ; HUI, DENNIS; GRANT, STEPHEN
To: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Reel/Frame 063728/0347 →
Continuity (2)
Provisional Application 63092994 · Oct 16, 2020
Related Publication 20230396468A1 · Dec 7, 2023
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