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US 12,757,050 B2Granted
WLAN sensing measurement report regarding receiver SNR
AssigneeMediatek Inc.
InventorsShuling Feng, Tsung-Han Tsai, Jianhan Liu, Thomas Edward Pare, Jr.
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Abstract
Techniques pertaining to wireless local area network (WLAN) sensing measurement report regarding receive (Rx) signal-to-noise ratio (SNR) in wireless communications are described. A sensing receiver is configured to perform a sensing measurement and generate a sensing measurement report. The sensing measurement report includes an Rx_SNR subfield indicating a Rx signal quality used in a channel state information (CSI) estimation.
Claims12
A method, comprising:
- performing a sensing measurement;
- and
- generating a sensing measurement report which includes a receive (Rx) signal-to-noise ratio (Rx_SNR) subfield indicating a Rx signal quality used in a channel state information (CSI) estimation,
- wherein the generating of the sensing measurement report comprises calculating a value of the Rx SNR subfield as an average of Rx signal-to-noise ratios measured in dB by averaging overall receiver chains,
- wherein the calculating of the value of the Rx SNR subfield comprises calculating the value of the Rx SNR subfield as:
- Rx_SNR
- =
- ∑
- i
- =
- 1
- N
- rx
-
- (
- 101
-
- og
- 10
-
- ∑
- k
- =
- 1
- N
- sc
-
- S
- i
- ,
- k
- -
- 10
-
- log
- 10
-
- ∑
- k
- =
- 1
- N
- sc
-
- N
- i
- ,
- k
- )
- /
- N
- rx
- wherein:
- i denotes an index of a receiver chain, i=1, . . . , Nrx;
- k denotes an index of occupied subcarrier in a frequency band or band segments in which the CSI estimation is performed, k=1, . . . , Nsc;
- Nrx denotes a number of sensing receivers;
- Nsc denotes a number of occupied subcarriers in the frequency band or band segments in which the CSI estimation is performed;
- Si,k denotes a signal power for a kth occupied subcarrier at an ith receiver;
- and
- Ni,k denotes a noise power for the kth occupied subcarrier at the ith receiver.
57 more elements
A method, comprising:
- performing a sensing measurement;
- and
- generating a sensing measurement report which includes a receive (Rx) signal-to-noise ratio (Rx SNR) subfield indicating a Rx signal quality used in a channel state information (CSI) estimation,
- wherein the generating of the sensing measurement report comprises calculating a value of the Rx SNR subfield as an average of Rx signal-to-noise ratios measured in dB by averaging overall receiver chains,
- wherein the calculating of the value of the Rx_SNR subfield comprises calculating the value of the Rx_SNR subfield as:
- Rx_SNR
- =
- 101
-
- og
- 10
- (
- ∑
- i
- =
- 1
- N
- rx
-
- ∑
- k
- =
- 1
- N
- sc
-
- S
- i
- ,
- k
- )
- -
- 10
-
- 1
-
- og
- 10
- (
- ∑
- i
- =
- 1
- N
- rx
-
- ∑
- k
- =
- 1
- N
- sc
-
- N
- i
- ,
- k
- )
- wherein:
- i denotes an index of a receiver chain, i=1, . . . , Nrx;
- k denotes an index of occupied subcarrier in a frequency band or band segments in which the CSI estimation is performed, k=1, . . . , Nsc;
- Nrx denotes a number of sensing receivers;
- Nsc denotes a number of occupied subcarriers in the frequency band or band segments in which the CSI estimation is performed;
- Si,k denotes a signal power for a kth occupied subcarrier at an ith receiver;
- and
- Ni,k denotes a noise power for the kth occupied subcarrier at the ith receiver.
63 more elements
A method, comprising:
- performing a sensing measurement;
- and
- generating a sensing measurement report which includes a receive (Rx) signal-to-noise ratio (Rx SNR) subfield indicating a Rx signal quality used in a channel state information (CSI) estimation,
- wherein the generating of the sensing measurement report comprises calculating a value of the Rx_SNR subfield reflecting Rx_SNRi as an average of Rx signal-to-noise ratios measured in decibel (dB) for an ith receiver chain, with the Rx_SNRi calculated as Rx_SNRi=10/log10 (Si/Ni), and wherein Si and Ni denote a signal power and a noise power, respectively, accumulated over all occupied subcarriers in an applicable bandwidth for CSI estimation.
1 more element
A method, comprising:
- requesting a sensing measurement report from a sensing responder;
- and
- receiving a sensing measurement report from the sensing responder responsive to the requesting, the sensing measurement report including a receive (Rx) signal-to-noise ratio (Rx_SNR) subfield indicating a Rx signal quality used in a channel state information (CSI) estimation,
- wherein a value of the Rx SNR subfield is calculated as an average of Rx signal-to-noise ratios measured in dB by averaging overall receiver chains,
- wherein the value of the Rx SNR subfield is calculated as:
- Rx_SNR
- =
- ∑
- i
- =
- 1
- N
- rx
-
- (
- 101
-
- og
- 10
-
- ∑
- k
- =
- 1
- N
- sc
-
- S
- i
- ,
- k
- -
- 10
-
- log
- 10
-
- ∑
- k
- =
- 1
- N
- sc
-
- N
- i
- ,
- k
- )
- /
- N
- rx
- wherein:
- i denotes an index of a receiver chain, i=1, . . . , Nrx;
- k denotes an index of occupied subcarrier in a frequency band or band segments in which the CSI estimation is performed, k=1, . . . , Nsc;
- Nrx denotes a number of sensing receivers:
- Nsc denotes a number of occupied subcarriers in the frequency band or band segments in which the CSI estimation is performed;
- Si,k denotes a signal power for a kth occupied subcarrier at an ith receiver;
- and
- Ni,k denotes a noise power for the kth occupied subcarrier at the ith receiver.
57 more elements
Dependencies are inferred from the claim text.