# US 12,003,462 B2 · Method for determining sensing information in communication transmission and related device

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- Number: US 12,003,462 B2
- Document ID: US12003462B2
- Status: Granted
- Kind: B2
- Application number: 17/668,207
- Filed: 2022-02-09
- Published: 2022-08-18
- Granted: 2024-06-04
- Earliest claimed: 2019-08-12
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co., Ltd.
- Inventors: Chenchen Liu; Huangxun Chen; Xiao Han; Rui Du; Meihong Zhang; Yunbo Li; Qian Zhang; Jia He
- Web page: https://patentgrep.com/patent/US12003462B2

## CPC

- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- 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 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L 5/0057: {Physical resource allocation for CQI}
- H04L 5/006: {Quality of the received signal, e.g. BER, SNR, water filling}
- Y02D 30/70: in wireless communication networks
- 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

A method includes, in accordance with some implementations, sending, a measurement station, a trigger frame to a signal source station, where the trigger frame carries pilot format information, and the pilot format information is used to indicate a sending time point of a signal frame triggered by the trigger frame, a quantity of times for sending the signal frame, and a transmission mode of pilot information in the signal frame. The measurement station receives an illumination frame from the signal source station, where the illumination frame is the signal frame triggered by the trigger frame. The measurement station analyzes pilot information in the illumination frame to obtain sensing information in the illumination frame, where the sensing information is used to indicate physical information of an object surrounding the signal source station and the measurement station.

## Claims

### Claim 1

A method for determining sensing information in a communication transmission, applied to a measurement station, wherein the measurement station and a signal source station are coupled through wireless communication, wherein the method comprises:
sending, by the measurement station, a trigger frame to the signal source station, wherein the trigger frame carries pilot format information, and the pilot format information is used to indicates a sending time point of a signal frame triggered by the trigger frame, a quantity of times for sending the signal frame, and a transmission mode of pilot information in the signal frame;
receiving, by the measurement station, an illumination frame from the signal source station, wherein the illumination frame is the signal frame triggered by the trigger frame; and
analyzing, by the measurement station, channel state information in the illumination frame to obtain sensing information in the illumination frame, wherein the sensing information indicates physical information of an object surrounding the signal source station and the measurement station,
wherein analyzing the channel state information in the illumination frame to obtain sensing information in the illumination frame comprises:
in response to the measurement station successfully parsing the illumination frame to obtain data:
reconstructing a data subcarrier in the illumination frame based on the data,
obtaining channel state information of the data subcarrier,
analyzing the channel state information of the data subcarrier in the illumination frame and channel state information of a pilot subcarrier in the illumination frame, and
obtaining the sensing information.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the physical information of the object comprises at least one of a physical state of the object, a shape of the object, or a velocity of the object.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the transmission mode of the pilot information comprises at least one of a fixed transmission mode or a stepped transmission mode; and
a location of the pilot information on a subcarrier in the illumination frame is fixed in the fixed transmission mode, and a location of the pilot information on a subcarrier in the illumination frame changes according to a preset rule in the stepped transmission mode.

### Claim 4

A method for determining sensing information in a communication transmission, applied to a measurement station, wherein the measurement station and a signal source station are coupled through wireless communication, wherein the method comprises:
sending, by the measurement station, a trigger frame to the signal source station, wherein the trigger frame carries pilot format information, and the pilot format information is used to indicates a sending time point of a signal frame triggered by the trigger frame, a quantity of times for sending the signal frame, and a transmission mode of pilot information in the signal frame;
receiving, by the measurement station, an illumination frame from the signal source station, wherein the illumination frame is the signal frame triggered by the trigger frame; and
analyzing, by the measurement station, channel state information in the illumination frame to obtain sensing information in the illumination frame, wherein the sensing information indicates physical information of an object surrounding the signal source station and the measurement station,
wherein analyzing the channel state information in the illumination frame to obtain sensing information in the illumination frame comprises:
in response to the measurement station failing to parse the illumination frame, analyzing the channel state information of a pilot subcarrier in the illumination frame to obtain the sensing information.

### Claim 5 (depends on 4)

The method according to claim 4, wherein the physical information of the object comprises at least one of a physical state of the object, a shape of the object, or a velocity of the object.

### Claim 6 (depends on 4)

The method according to claim 4, wherein the transmission mode of the pilot information comprises at least one of a fixed transmission mode or a stepped transmission mode; and
a location of the pilot information on a subcarrier in the illumination frame is fixed in the fixed transmission mode, and a location of the pilot information on a subcarrier in the illumination frame changes according to a preset rule in the stepped transmission mode.

### Claim 7

A measurement station comprising:
at least one processor;
a memory coupled to the at least one processor, wherein the memory includes tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the at least one processor, cause the measurement station to perform operations comprising:
sending a trigger frame to a signal source station, wherein the trigger frame carries pilot format information, and the pilot format information indicates a sending time point of a signal frame triggered by the trigger frame, a quantity of times for sending the signal frame, and a transmission mode of pilot information in the signal frame;
receiving an illumination frame from the signal source station, wherein the illumination frame is the signal frame triggered by the trigger frame; and
analyzing channel state information in the illumination frame to obtain sensing information in the illumination frame, wherein the sensing information indicates physical information of an object surrounding the signal source station and the measurement station, wherein the measurement station is configured such that, in response to the measurement station successfully parsing the illumination frame to obtain data, the operations include:
reconstructing a data subcarrier in the illumination frame based on the data,
obtaining channel state information of the data subcarrier,
analyzing the channel state information of the data subcarrier in the illumination frame and channel state information of a pilot subcarrier in the illumination frame, and
obtaining the sensing information.

### Claim 8 (depends on 7)

The measurement station according to claim 7, wherein the measurement station is configured such that, in response to the measurement station failing to parse the illumination frame, the operations include analyzing the channel state information of a pilot subcarrier in the illumination frame to obtain the sensing information.

### Claim 9 (depends on 8)

The measurement station according to claim 8, wherein the physical information of the object comprises at least one of a physical state of the object, a shape of the object, or a velocity of the object.

### Claim 10 (depends on 8)

The measurement station according to claim 8, wherein the transmission mode of the pilot information comprises at least one of a fixed transmission mode or a stepped transmission mode; and
a location of the pilot information on a subcarrier in the illumination frame is fixed in the fixed transmission mode, and a location of the pilot information on a subcarrier in the illumination frame changes according to a preset rule in the stepped transmission mode.

### Claim 11 (depends on 7)

The measurement station according to claim 7, wherein the physical information of the object comprises at least one of a physical state of the object, a shape of the object, or a velocity of the object.

### Claim 12 (depends on 7)

The measurement station according to claim 7, wherein the transmission mode of the pilot information comprises at least one of a fixed transmission mode or a stepped transmission mode; and
a location of the pilot information on a subcarrier in the illumination frame is fixed in the fixed transmission mode, and a location of the pilot information on a subcarrier in the illumination frame changes according to a preset rule in the stepped transmission mode.