| 摘要 |
A preamble generator module generates a first preamble for a first packet, which is a single-user packet. The first preamble includes a first short training field, a first long training field, and a first signal field. The preamble generator module generates a second preamble for a second packet, which is a multi-user packet formatted as a multi-user packet or a single-user packet formatted as a multi-user packet. The second preamble is longer than the first preamble and includes a second short training field, a second long training field, and a second signal field. The first signal field and the second signal field conform to a Very High Throughput format specified in a wireless networking standard. A modulation module modulates the first signal field of the first preamble differently than the second signal field of the second preamble. |
