GB15629.1102-2003

Information technology--Telecommunications and information exchange between systems--Local and metropolitan area networks--Specific requirements--Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer(PHY) Specifications: Higher-Speed Physi

信息技术系统间远程通信和信息交换局域网和城域网特定要求第11部分:无线局域网媒体访问控制和物理层规范:2.4 GHz频段较高速物理层扩展规范

GB 15629.1102-2003 es una norma nacional china obligatoria vigente: Information technology--Telecommunications and information exchange between systems--Local and metropolitan area networks--Specific requirements--Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer(PHY) Specifications: Higher-Speed Physi. Sector: Electrónica. Enfoque: Seguridad de productos. Entrada en vigor: 1 dic 2003.

La aplicabilidad depende del alcance del producto, la vía de certificación, los avisos de la autoridad competente y las reglas de transición. Solicite una traducción o verifique la fuente antes de usar esta ficha en una decisión de cumplimiento.

Resumen de cumplimiento

Este resumen está disponible por ahora solo en inglés.

Alcance y aplicabilidad

This standard specifies the Media Access Control (MAC) and Physical Layer (PHY) specifications for higher-speed wireless local area networks (WLAN) operating in the 2.4 GHz band (2.4GHz–2.4835 GHz). It applies to wireless LAN equipment utilizing High-Rate Direct Sequence Spread Spectrum (HR/DSSS) technology, including devices supporting data rates of 5.5 Mbit/s and 11 Mbit/s. It is mandatory for all manufacturers producing 2.4 GHz WLAN equipment for the Chinese market. It does not apply to infrared or frequency-hopping spread spectrum (FHSS) physical layers, except for specific interoperability options defined within.

Requisitos técnicos

The standard defines the HR/DSSS PHY specifications, building upon the base GB 15629.11 standard. It introduces higher data rates using Complementary Code Keying (CCK) modulation for 5.5 Mbit/s and 11 Mbit/s transmissions, alongside the existing 1 Mbit/s and 2 Mbit/s rates. The standard specifies the Physical Layer Convergence Procedure (PLCP) sublayer, defining both mandatory long preamble/header formats and optional short preamble/header formats to optimize network throughput. Manufacturers must ensure their devices support the mandatory long preamble for interoperability with legacy DSSS systems. It details the Physical Medium Dependent (PMD) sublayer requirements, including operating frequency channels, modulation schemes, and transmit power levels. The standard also defines an optional Packet Binary Convolutional Coding (PBCC) mode as an alternative modulation scheme. Devices implementing optional features like short preambles or PBCC must clearly declare these capabilities in their Protocol Implementation Conformance Statement (PICS). Furthermore, the standard outlines specific regulatory requirements for the Chinese market, including maximum transmit power limits and spurious emission limits. It defines Clear Channel Assessment (CCA) mechanisms to ensure coexistence with other systems and specifies receiver performance requirements such as minimum input sensitivity and adjacent channel rejection.

Métodos de ensayo

Compliance testing involves evaluating the PLCP and PMD sublayers. Key tests include Transmit Spectrum Mask measurement to ensure out-of-band emissions are within limits, Transmit Modulation Accuracy assessment using vector error magnitude analysis, and Transmit Center Frequency Tolerance verification. Receiver performance is tested through Minimum Input Level Sensitivity (FER must be less than 8×10⁻² at -76 dBm for 11 Mbit/s CCK) and Adjacent Channel Rejection testing. CCA functionality is also verified to ensure proper channel sensing.

Preguntas frecuentes

What products are regulated under GB 15629.1102-2003?

This standard regulates wireless LAN equipment operating in the 2.4 GHz band that utilizes High-Rate Direct Sequence Spread Spectrum (HR/DSSS) technology, specifically those supporting 5.5 Mbit/s and 11 Mbit/s data rates.

Is GB 15629.1102-2003 mandatory in China?

Yes, specific clauses related to operating frequency range, transmit power limits, and spurious emissions are mandatory. Manufacturers must comply with these requirements to sell WLAN products in China.

How does GB 15629.1102-2003 relate to international standards?

This standard is a modified adoption of IEEE Std 802.11b:1999. It includes specific modifications for the Chinese regulatory environment, particularly regarding radio transmission specifications and operating channels.

The summary above provides a high-level overview of GB 15629.1102-2003. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 15629.1102-2003 today to access all detailed parameters, tables, and testing procedures.

Indicaciones de aplicabilidad

Tipo: Básica
CCS: L78
ICS: 35.110
Organismo competente: Standardization Administration of China
Comité técnico: National Technical Committee on Information Technology of Standardization Administration of China