Bluetooth Core Specification

8DPSK

8 phase Differential Phase Shift Keying

3 Mb/s modulation type used by Enhanced Data rate

AAD

Additional Authenticated Data

ACI 

Antenna Configuration Index

ACK

Acknowledge/Acknowledgment

ACL

Asynchronous Connection-oriented [logical transport]

Reliable or time-bounded, bi-directional, point-to-point

ACL-C

ACL Control [logical link] (LMP)

ACL-U

ACL User [logical link] (L2CAP)

ACO

Authenticated Ciphering Offset

AD

Advertising Data

Adv_idx

Advertising channel index

ADVB

LE Advertising Broadcast

ADVB-C

LE Advertising Broadcast Control (Logical Link)

ADVB-U

LE Advertising Broadcast User Data (Logical Link)

ADI

AdvDataInfo

AES

Advanced Encryption Standard

AES-CCM

Advanced Encryption Standard - Counter with CBC-MAC

AFH

Adaptive Frequency Hopping

AHS

Adapted Hop Sequence

AoA

Angle of Arrival

AoD

Angle of Departure

APB

Active Peripheral Broadcast [logical transport]

Unreliable, uni-directional broadcast to any devices synchronized with the physical channel

APB-C

APB Control [logical link] (LMP)

APB-U

APB User [logical link] (L2CAP)

ARQ

Automatic Repeat Request

ASK 

Amplitude Shift Keying

ATT

Attribute Protocol

BB

Baseband

BCH

Bose, Chaudhuri & Hocquenghem

Type of code

The persons who discovered these codes in 1959 (H) and 1960 (B&C)

BD_ADDR

Bluetooth Device Address

BER

Bit Error Rate

BIG

Broadcast Isochronous Group

A group of one or more time-related Broadcast Isochronous Streams

BIS

Broadcast Isochronous Stream

Connectionless isochronous logical transport

BT

Bandwidth Time

C

Central

C.#

Conditional

Any number may be used. See [Vol 1] Part E, Section 2.11

CAC

Channel Access Code

CBC-MAC

Cipher Block Chaining Message Authentication Code

CCM

Counter with CBC-MAC

CIG

Connected Isochronous Group

A group of one or more time-related Connected Isochronous Streams

CIS

Connected Isochronous Stream

Point-to-point isochronous logical transport

CLKN

Native Clock

CLK

Central's Clock

CLKE

Estimated Clock

CODEC

COder DECoder

COF

Ciphering Offset

CP

CTEInfo Present

A field in the Data Channel PDU Header to indicate the presence of the CTEInfo field

CPB

Connectionless Peripheral Broadcast

The logical transport enabled by the Connectionless Peripheral Broadcast feature

CRC

Cyclic Redundancy Check

CS  

Channel Sounding

CS Tone

Channel Sounding Tone

Unmodulated carrier associated with the phase-based ranging technique

CSA

Core Specification Addendum

(In plural Addenda)

CSRK

Connection Signature Resolving Key

CTE

Constant Tone Extension

CTEInfo

Constant Tone Extension Information

A field in the Data Channel PDU Header and the extended advertising header

CTS

Clear to send

CVSD

Continuous Variable Slope Delta Modulation

DAC

Device Access Code

DCI

Default Check Initialization

DEVM

Differential Error Vector Magnitude

Measure of modulation error used for Enhanced Data Rate transmitter testing

DH

Data-High Rate

Data packet type for high rate data

DHK

Diversifier Hiding Key

DIAC

Dedicated Inquiry Access Code

DID

(Advertising) Data ID

DIV

Diversifier

DM

Data - Medium Rate

Data packet type for medium rate data

DPSK

Differential Phase Shift Keying

Generic description of Enhanced Data Rate modulation

DQPSK

Differential Quaternary Phase Shift Keying

Modulation type used by Enhanced Data Rate

DRBG

Deterministic Random Bit Generator

DTM

Direct Test Mode

DV

Data Voice

Data packet type for data and voice

E

Excluded

See [Vol 1] Part E, Section 2.11

ECLD

Early Commit Late Detect

EDIV

Encrypted Diversifier

EDLC

Early Detect Late Commit

EDR

Enhanced Data Rate

EIR

Extended Inquiry Response

Host supplied information transmitted in the Inquiry Response substate

EIRP

Effective Isotropic Radiated Power

Equivalent power that an isotropic antenna must transmit to provide the same field power density

(e)SCO

Synchronous logical link or Extended Synchronous logical link

SCO or eSCO

eSCO

Extended Synchronous Connection-Oriented [logical transport]

Bi-directional, symmetric or asymmetric, point-to-point, general regular data, limited retransmission

eSCO-S

Stream eSCO (unframed)

Used to support isochronous data delivered in a stream without framing

ETSI

European Telecommunications Standards Institute

FAE

Fractional Frequency Offset Actuation Error

FCC

Federal Communications Commission

FCS

Frame Check Sequence

FDMA

Frequency Division Multiple Access

FEC

Forward Error Correction code

FFO

Fractional Frequency Offset

FHS

Frequency Hop Synchronization

FHSS

Frequency Hopping Spread Spectrum

FIFO

First In First Out

FIPS

Federal Information Processing Standards

FM

Frequency Modulation

Modulation type

GAP

Generic Access profile

GATT

Generic Attribute profile

GFSK

Gaussian Frequency Shift Keying

GIAC

General Inquiry Access Code

Used for GAP General Discoverable mode and General Inquiry procedure. See Assigned Numbers.

HCI

Host Controller interface

HEC

Header-Error-Check

HID

Human Interface Device

HV

High quality Voice

e.g. HV1 packet

HW

Hardware

IAC

Inquiry Access Code

IC

Industry Canada

IEC

International Electrotechnical Commission

IEEE

Institute of Electrical and Electronics Engineers

IETF

Internet Engineering Task Force

IFS

Inter Frame Space

IP

Internet Protocol

IPv4

Internet Protocol version 4

IPv6

Internet Protocol version 6

IQ

In-phase and Quadrature

IrDA

Infra-red Data Association

IRK

Identity Resolving Key

ISM

Industrial, Scientific, Medical

ISO

International Organization for Standardization

ISO

Isochronous

ISOAL

Isochronous Adaptation Layer

The layer that converts data units from the upper layer to data units in the Link Layer and vice versa

ITU

International Telecommunication Union

IUT

Implementation Under Test

IV

Initialization Vector

IV_C

Initialization Vector (Central)

IV_P

Initialization Vector (Peripheral)

L2CAP

Logical Link Control and Adaptation protocol

LAP

Lower Address Part

LC

Link Controller

Link Controller (or Baseband) part of the Bluetooth protocol stack. Low level Baseband protocol handler

LC

Link Control [logical link]

The control logical links LC and ACL-C are used at the link control level and link manager level, respectively.

LE

Low Energy

LEB-C

Low Energy Broadcast Control

A logical link for control of Broadcast Isochronous Streams in a Broadcast Isochronous Group

LE-C

Low Energy Control (link)

LE-F

Low Energy Framed

A logical link for transferring framed isochronous data packets using a Connected or Broadcast Isochronous Stream logical transport

LE-S

Low Energy Stream

A logical link for transferring unframed isochronous data packets using a Connected or Broadcast Isochronous Stream logical transport

LE-U

LE User [logical link]

LFAE

Local Frequency Actuation Error

LFSR

Linear Feedback Shift Register

LIAC

Limited Inquiry Access Code

Used for GAP Limited Discoverable mode and Limited Inquiry procedure. See Assigned Numbers.

LL

Link Layer

LLID

Logical Link Identifier

LM

Link Manager

LMP

Link Manager protocol

For LM peer to peer communication

LR

Loudness Rating

LSB

Least Significant Bit

LSO

Least Significant Octet

LSTO

Link Supervision Timeout event

Controller can send LSTO event to Host

LT_ADDR

Logical Transport ADDRess

LTK

Long-Term Key

M

Mandatory

See [Vol 1] Part E, Section 2.11

MAC

Message Authentication Code

Mb/s

Megabits (millions of bits) per second

MD

More Data

MIC

Message Integrity Check

MITM

Man-in-the-middle

Msym/s

Megasymbols per second

MSB

Most Significant Bit

mSBC

modified Sub Band Codec

Hands-Free Profile v1.6 or later

MSC

Message sequence chart

MSO

Most Significant Octet

MTU

Maximum Transmission Unit

MWS

Mobile Wireless Standards

For example LTE and WiMAX

N_AP

Number of Antenna Paths

NADM

Normalized Attack Detector Metric

NAK

Negative Acknowledge

NAP

Non-significant Address Part

NESN

Next Expected Sequence Number

NIST

National Institute of Standards and Technology

O

Optional

See [Vol 1] Part E, Section 2.11

OBEX

OBject EXchange protocol

OCF

Opcode Command Field

OGF

Opcode Group Field

OOB

Out of Band

$\text{π}$/4-DQPSK

$\text{π}$/4 Rotated Differential Quaternary Phase Shift Keying

2 Mb/s modulation type used by Enhanced Data Rate

P

Peripheral

PADVB

LE Periodic Advertising Broadcast (Logical Transport)

PAwR

Periodic Advertising with Responses

PBD

Profile Broadcast Data

The name of the logical link enabled by the Connectionless Peripheral Broadcast feature

PBF

Packet Boundary Flag

The device supports the capability to correctly handle HCI ACL Data packets

PBR

Phase-Based Ranging

PCM

Pulse Coded Modulation

PCT

Phase Correction Term

PDU

Protocol Data Unit

A message

PHY

Physical Layer

PIN

Personal Identification Number

PN

Pseudo-random Noise

ppm

Part Per Million

PPP

Point-to-Point Protocol

PRBS

Pseudo Random Bit Sequence

PRNG

Pseudo Random Noise Generation

PSK

Phase Shift Keying

Class of modulation types

ptt

Packet Type Table

The ptt parameter is used to select the logical transport types via LMP.

QoS

Quality of Service

RAND

Random number

RF

Radio Frequency

RFC

Request For Comments

RFCMode

Retransmission and Flow Control Mode

RFCOMM

Serial cable emulation protocol based on ETSI TS 07.10

RFU

Reserved for future use

RMS

Root Mean Square

RPA

Resolvable Private Address

RPL

Reference Power Level

RSSI

Received Signal Strength Indication

RTT

Round-Trip Time

RX

Receive

SAR

Segmentation and Reassembly

SCA

Sleep Clock Accuracy

SCO

Synchronous Connection-Oriented [logical transport]

Bi-directional, symmetric, point-to-point, AV channels

SCO-S

Stream SCO (unframed)

Used to support isochronous data delivered in a stream without framing

SDP

Service Discovery protocol

SDU

Service Data Unit

SEQN

Sequential Numbering scheme

SID

(Advertising) Set ID

SK

Session Key

SKD_C

Session Key Diversifier (Central)

Central portion of the Session Key Diversifier

SKD_P

Session Key Diversifier (Peripheral)

Peripheral portion of the Session Key Diversifier

SM

Security Manager

SMP

Security Manager Protocol

SN

Sequence Number

SNR

Signal-to-Noise Ratio

SRES

Signed Response

SRK

Signature Resolving Key

SSI

Signal Strength Indication

SSP

Secure Simple Pairing

STK

Short Term Key

SW

Software

T_FCS

Time for Frequency Change Spacing

T_FM

Time for Frequency Measurement

T_GD

Time for Guard period

T_IFS

Time Inter Frame Space

Time interval between consecutive packets on same channel index in the situation indicated by the suffix. See [Vol 6] Part B, Section 4.1.1.

T_IP1

Time for Interlude Period 1 (between CS packets)

T_IP2

Time for Interlude Period 2 (between CS tones)

T_MCES

Time Minimum Connection Event Spacing

Minimum time interval between connection events. See [Vol 6] Part B, Section 4.1.5.

T_MSS

Time Minimum Subevent Spacing

Minimum time interval between subevents in the situation indicated by the suffix. See [Vol 6] Part B, Section 4.2.2.

T_PM

Time for Phase Measurement

T_RD

Time for (transmission) Ramp-Down

T_SY

Time for synchronization sequence (CS packet)

TCP/IP

Transport Control Protocol/Internet Protocol

TCS

Telephony Control protocol Specification

TDD

Time-Division Duplex

TDMA

Time Division Multiple Access

TK

Temporary Key

ToA

Time of Arrival

ToD

Time of Departure

ToF

Time of Flight

TX

Transmit

UAP

Upper Address Part

UART

Universal Asynchronous receiver Transmitter

UI

User Interface

ULAP

Upper and Lower Address Parts

USB

Universal Serial Bus

UTF-8

8-bit UCS/Unicode Transformation Format

UUID

Universal Unique Identifier