蓝牙5.4核心规范：设备间互操作的基石

需积分: 5 50 浏览量更新于2024-06-24 收藏 32.43MB PDF 举报

蓝牙核心v5.4规范是Bluetooth SIG（蓝牙系统联盟）所发布的最新版本，于2023年1月31日更新。该规范定义了构建互操作蓝牙设备所需的关键技术，旨在确保所有兼容设备之间的无缝通信。作为一项专有协议，Bluetooth Core Specification Version 5.4致力于提升连接性能、功耗效率和范围，以适应不断增长的物联网(IoT)应用需求。该版本的改进包括但不限于以下几点： 1. **性能提升**：v5.4引入了更快的数据传输速率，例如扩展了LE (Low Energy)信道带宽，使得蓝牙设备能处理更多的数据流量，从而支持高清音频流、视频传输等高带宽应用。 2. **范围增强**：通过优化信号处理和频谱使用，蓝牙v5.4能够提供更大的覆盖范围，特别对于那些需要远距离无线连接的应用场景，如智能家居和工业自动化。 3. **多设备配对能力**：v5.4支持多设备同时连接，提高了设备间的并发性，使用户可以同时连接多个蓝牙设备，如耳机、手表和音箱等。 4. **低功耗模式优化**：在保持连接稳定的同时，新规范还着重于节能技术，延长设备电池寿命，这对于可穿戴设备和物联网设备尤为重要。 5. **安全增强**：随着物联网设备数量的增长，安全性成为关键。v5.4可能引入了更强的身份验证和加密机制，以保护数据隐私和防止恶意攻击。 6. **合规性要求**：使用此规范前，请确保您的项目符合Bluetooth SIG会员协议和相关条款，任何不符合规定的行为都将受到禁止，可能涉及终止会员资格和其他法律后果。 7. **标准化过程**：蓝牙Core Specification Working Group负责制定和维护这一标准，确保全球范围内所有蓝牙设备的互操作性和一致性。蓝牙Core v5.4规范是蓝牙技术发展的一个里程碑，它不仅提升了用户体验，也推动了物联网设备的广泛应用，对硬件制造商和开发者来说，理解并遵循这一规范是开发高质量蓝牙设备的必要条件。

BLUETOOTH CORE SPECIFICATION Version 5.4 | Vol 0, Part A page 16

Version Date: 2023-01-31

Bluetooth SIG Proprietary

Specification Volume 1: Architecture, Mixing, and Conventions

2.33 Role Change not Allowed (0x21) ............................................. 381

2.34 LMP Response Timeout / LL Response Timeout (0x22) ......... 381

2.35 LMP Error Transaction Collision /

LL Procedure Collision (0x23) ................................................. 381

2.36 LMP PDU not Allowed (0x24) .................................................. 381

2.37 Encryption Mode not Acceptable (0x25).................................. 381

2.38 Link Key cannot be Changed (0x26) ....................................... 381

2.39 Requested QoS not Supported (0x27) .................................... 381

2.40 Instant Passed (0x28)..............................................................381

2.41 Pairing with Unit Key not Supported (0x29)............................. 382

2.42 Different Transaction Collision (0x2A) ..................................... 382

2.43 QoS Unacceptable Parameter (0x2C)..................................... 382

2.44 QoS Rejected (0x2D) .............................................................. 382

2.45 Channel Assessment Not Supported (0x2E) ........................... 382

2.46 Insufficient Security (0x2F) ...................................................... 382

2.47 Parameter Out of Mandatory Range (0x30) ............................ 382

2.48 Role Switch Pending (0x32) .................................................... 382

2.49 Reserved Slot Violation (0x34) ................................................ 383

2.50 Role Switch Failed (0x35)........................................................ 383

2.51 Extended Inquiry Response too Large (0x36) ......................... 383

2.52 Secure Simple Pairing not Supported by Host (0x37) ............. 383

2.53 Host Busy–Pairing (0x38)........................................................ 383

2.54 Connection Rejected due to no Suitable Channel Found (0x39)...

383

2.55 Controller Busy (0x3A) ............................................................ 383

2.56 Unacceptable Connection Parameters (0x3B) ........................ 384

2.57 Advertising Timeout (0x3C) .....................................................384

2.58 Connection Terminated due to MIC Failure (0x3D) ................. 384

2.59 Connection Failed to be Established / Synchronization Timeout

(0x3E) ...................................................................................... 384

2.60 [This section is no longer used] ............................................... 384

2.61 Coarse Clock Adjustment Rejected but Will Try to Adjust Using

Clock Dragging (0x40)............................................................. 384

2.62 Type0 Submap not Defined (0x41).......................................... 384

2.63 Unknown Advertising Identifier (0x42) ..................................... 385

2.64 Limit Reached (0x43) .............................................................. 385

2.65 Operation Cancelled by Host (0x44) ....................................... 385

2.66 Packet Too Long (0x45)........................................................... 385

2.67 Too Late (0x46)........................................................................385

2.68 Too Early (0x47) ...................................................................... 385

BLUETOOTH CORE SPECIFICATION Version 5.4 | Vol 0, Part A page 17

Version Date: 2023-01-31

Bluetooth SIG Proprietary

Specification Volume 2: BR/EDR Controller

BR/EDR Controller

Specification Volume 2

Part A

RADIO SPECIFICATION

1 Scope ................................................................................................ 390

2 Frequency bands and channel arrangement ................................ 392

3 Transmitter characteristics ............................................................. 393

3.1 Basic Rate ............................................................................... 394

3.1.1 Modulation characteristics .......................................... 394

3.1.2 Spurious emissions..................................................... 395

3.1.3 Radio frequency tolerance.......................................... 396

3.2 Enhanced Data Rate ............................................................... 396

3.2.1 Modulation characteristics .......................................... 397

3.2.2 Spurious emissions..................................................... 400

3.2.3 Radio frequency tolerance.......................................... 401

3.2.4 Relative transmit power .............................................. 402

4 Receiver characteristics ................................................................. 403

4.1 Basic Rate ............................................................................... 403

4.1.1 Actual sensitivity level................................................. 403

4.1.2 Interference performance............................................ 403

4.1.3 Out-of-band blocking...................................................404

4.1.4 Intermodulation characteristics ................................... 404

4.1.5 Maximum usable level ................................................ 405

4.1.6 Received Signal Strength Indication........................... 405

4.1.7 Reference signal definition.......................................... 405

4.2 Enhanced Data Rate ............................................................... 405

4.2.1 Actual sensitivity level................................................. 405

4.2.2 BER floor performance ............................................... 405

4.2.3 Interference performance............................................ 406

4.2.4 Maximum usable level ................................................ 407

4.2.5 Out-of-band and intermodulation characteristics ........ 407

4.2.6 Reference signal definition.......................................... 407

Appendix A Test conditions .................................................................... 408

A.1 Nominal test conditions ......................................................... 408

A.1.1 Nominal temperature ................................................ 408

BLUETOOTH CORE SPECIFICATION Version 5.4 | Vol 0, Part A page 18

Version Date: 2023-01-31

Bluetooth SIG Proprietary

Specification Volume 2: BR/EDR Controller

A.1.2 Nominal power source .............................................. 408

A.2 [This section is no longer used] ............................................ 408

Appendix B [This Appendix is no longer used] .................................... 409

Appendix C Modulation accuracy definition ......................................... 410

C.1 Enhanced Data Rate modulation accuracy ........................... 410

C.1.1 RMS DEVM ................................................................ 412

C.1.2 Peak DEVM ............................................................... 413

Part B

BASEBAND SPECIFICATION

1 General description ......................................................................... 422

1.1 Bluetooth clock ........................................................................ 423

1.2 Bluetooth Device addressing................................................... 424

1.2.1 Reserved addresses...................................................425

1.3 Access codes .......................................................................... 425

2 Physical channels............................................................................ 427

2.1 Physical channel definition ...................................................... 428

2.2 Basic piconet physical channel................................................ 428

2.2.1 Central and Peripheral roles ....................................... 428

2.2.2 Hopping characteristics............................................... 429

2.2.3 Time slots.................................................................... 429

2.2.4 Piconet clocks............................................................. 429

2.2.5 Transmit/receive timing............................................... 430

2.3 Adapted piconet physical channel ........................................... 434

2.3.1 Hopping characteristics............................................... 434

2.4 Page scan physical channel .................................................... 434

2.4.1 Clock estimate for paging ........................................... 435

2.4.2 Hopping characteristics............................................... 435

2.4.3 Paging procedure timing............................................. 435

2.4.4 Page response timing ................................................. 436

2.5 Inquiry scan physical channel.................................................. 438

2.5.1 Clock for inquiry .......................................................... 438

2.5.2 Hopping characteristics............................................... 438

2.5.3 Inquiry procedure timing ............................................. 439

2.5.4 Inquiry response timing............................................... 439

2.6 Hop selection........................................................................... 440

2.6.1 General selection scheme .......................................... 441

BLUETOOTH CORE SPECIFICATION Version 5.4 | Vol 0, Part A page 19

Version Date: 2023-01-31

Bluetooth SIG Proprietary

Specification Volume 2: BR/EDR Controller

2.6.2 Selection kernel .......................................................... 444

2.6.3 Adapted hop selection kernel...................................... 447

2.6.4 Control word................................................................ 448

2.7 Synchronization scan physical channel................................... 453

2.7.1 Hopping characteristics............................................... 453

2.7.2 Synchronization Train procedure timing...................... 453

2.7.3 Synchronization Scan procedure timing ..................... 454

3 Physical links ................................................................................... 456

3.1 Link supervision for active physical links ................................. 456

3.2 Link supervision for Connectionless Peripheral Broadcast

physical links ........................................................................... 457

3.3 Authenticated payload timeout for active links ........................ 457

4 Logical transports ........................................................................... 458

4.1 General.................................................................................... 458

4.2 Logical transport address (LT_ADDR)..................................... 458

4.3 Synchronous logical transports ............................................... 459

4.4 Asynchronous logical transport ............................................... 459

4.5 Transmit/receive routines ........................................................ 460

4.5.1 TX routine ...................................................................460

4.5.2 RX routine................................................................... 463

4.5.3 Flow control.................................................................464

4.6 Active Peripheral broadcast transport ..................................... 465

4.7 [This section is no longer used] ............................................... 465

4.8 Connectionless Peripheral Broadcast logical transport ........... 465

5 Logical links ..................................................................................... 467

5.1 Link Control logical link (LC).................................................... 467

5.2 ACL Control logical links (ACL-C and APB-C)......................... 467

5.3 User asynchronous/isochronous logical links (ACL-U and

APB-U) .................................................................................... 468

5.3.1 Pausing the ACL-U logical link.................................... 468

5.4 User synchronous data logical link (SCO-S) ........................... 468

5.5 User extended synchronous data logical link (eSCO-S).......... 468

5.6 Logical link priorities ................................................................ 468

5.7 Profile broadcast data logical link ............................................ 469

6 Packets ............................................................................................. 470

6.1 General format......................................................................... 470

6.1.1 Basic Rate................................................................... 470

6.1.2 Enhanced Data Rate................................................... 470

6.2 Bit ordering .............................................................................. 471

6.3 Access code ............................................................................ 471

BLUETOOTH CORE SPECIFICATION Version 5.4 | Vol 0, Part A page 20

Version Date: 2023-01-31

Bluetooth SIG Proprietary

Specification Volume 2: BR/EDR Controller

6.3.1 Access code types...................................................... 472

6.3.2 Preamble..................................................................... 472

6.3.3 Sync word ................................................................... 472

6.3.4 Trailer.......................................................................... 476

6.4 Packet header ......................................................................... 476

6.4.1 LT_ADDR.................................................................... 476

6.4.2 TYPE........................................................................... 477

6.4.3 FLOW.......................................................................... 477

6.4.4 ARQN.......................................................................... 477

6.4.5 SEQN.......................................................................... 478

6.4.6 HEC ............................................................................ 478

6.5 Packet types ............................................................................ 478

6.5.1 Common packet types ................................................481

6.5.2 SCO packets............................................................... 483

6.5.3 eSCO packets............................................................. 484

6.5.4 ACL packets................................................................ 486

6.6 Payload format ........................................................................ 488

6.6.1 Synchronous data field ............................................... 489

6.6.2 Asynchronous data field.............................................. 490

6.7 Packet summary...................................................................... 494

7 Bit stream processing ..................................................................... 496

7.1 Error checking ......................................................................... 497

7.1.1 HEC generation .......................................................... 497

7.1.2 CRC generation .......................................................... 498

7.2 Data whitening......................................................................... 499

7.3 Error correction........................................................................ 500

7.4 FEC code: rate 1/3 .................................................................. 501

7.5 FEC code: rate 2/3 .................................................................. 501

7.6 ARQ scheme ........................................................................... 502

7.6.1 Unnumbered ARQ....................................................... 502

7.6.2 Retransmit filtering...................................................... 506

7.6.3 Flushing payloads....................................................... 508

7.6.4 Multi-Peripheral considerations................................... 509

7.6.5 Active Peripheral Broadcast packets .......................... 509

7.7 Erroneous synchronous data reporting ................................... 510

7.8 Message Integrity Check ......................................................... 511

8 Link Controller operation................................................................ 512

8.1 Overview of states ...................................................................512

8.2 Standby state........................................................................... 513

剩余3111页未读，继续阅读

zDarkBlue

粉丝: 125

蓝牙5.4核心规范：设备间互操作的基石

最新蓝牙协议bluetooth core spec5.4

蓝牙协议核心规范文档-中文版本

最新的蓝牙核心规范v5.4，是官网发布的最新蓝牙规范

蓝牙核心协议bluetooth-core-v5.4

蓝牙5.4核心规范 Core-v5.4

BlueTooth Core Specification V5.0.pdf

蓝牙协议文档Bluetooth Core Spec

蓝牙核心协议v5.4详解：2023年度官方版

"蓝牙核心规范v5.4：最新技术更新与变化概述

蓝牙5.4 amended 20240611

最新资源