iqSamples = bleCTEIQSample(cteSamples) returns in-phase and quadrature (IQ) samples, iqSamples, by performing IQ sampling at each microsecond of the reference period and each sample slot of the constant tone extension (CTE), cteSamples.

Constant Tone Extension (CTE) This figure shows the packet structure for the Bluetooth LE uncoded PHY operating on LE 1M and LE 2M. The CTE field is appended at the end of the packet structure. CTE contains a series of symbols, each representing a binary 1.

The Bluetooth Core Specification 5.1 specifies additional data in the protocol data unit (PDU) packet structure, known as the constant tone extension (CTE) for direction finding. This figure shows the CTE appended at the end of LE uncoded PHY packet.

Each packet contains four mandatory fields (preamble, access-address, protocol data unit (PDU), and cyclic redundancy check (CRC)) and one optional field (constant tone extension (CTE)). The preamble is transmitted first, followed by the access address, PDU, CRC, and …

Generate Bluetooth LE Waveform With CTE For Connection-Oriented Scenario Open Live Script Specify a connection data channel protocol data unit (PDU) for angle of departure (AoD) constant tone extension (CTE).

Specify the direction finding method, the direction finding packet type, and the physical layer (PHY) transmission mode. The PHY transmission mode must be LE1M or LE2M for a connection-oriented constant tone extension (CTE) and LE1M for a connectionless CTE.

This figure shows the packet structure for the BLE uncoded PHY operating on LE 1M and LE 2M. Each packet contains four mandatory fields (preamble, access-address, protocol data unit (PDU), and cyclic redundancy check (CRC)) and one optional field (constant tone extension (CTE)).

The Bluetooth Core Specification provided by the Bluetooth Special Interest Group (SIG) added a location and direction finding feature in the Bluetooth low energy (BLE). The communication in BLE is realized using these two distinct physical layers (PHYs).

Recover data bits from the received BLE waveform using bleIdealReceiver. Check for the number of bit errors in the recovered bits. The returned value indicates that the BLE waveform was successfully decoded.

This MATLAB function generates waveform, a time-domain Bluetooth low energy (BLE) physical layer (PHY) waveform by using the input information bits message.