Method of arranging packets in a wireless communication system and related device

• US 8,498,245 B2
• Filed: 12/28/2010
• Issued: 07/30/2013
• Est. Priority Date: 05/15/2010
• Status: Active Grant

• Current Assignee: Ralink Technology Corporation (MediaTek, Inc.)
• Original Assignee: Ralink Technology Corporation (MediaTek, Inc.)
• Inventors: Wu, Cheng-Hsuan, Liao, Yen-Chin, Tu, Yung-Szu
• Primary Examiner(s): Yao, Kwang B
• Assistant Examiner(s): Bokhari, Syed M
• Application Number:
  US12/979,382
• Publication Number:
  US 20110280232A1
• Time in Patent Office: 945 Days
• Field of Search: 370/310, 370/341, 370/470, 370328-330, 370/335, 370/338
• US Class Current: 370/328
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A method of arranging a packet in a wireless communication system includes a preamble sequence and a data sequence. The preamble sequence includes a legacy training field (L-TF), a legacy signal field (L-SIG), a very high throughput signal field (VHT-SIG), a very high throughput short training field (VHT-STF) and at least one very high throughput long training field (VHT-LTF). The method includes generating a first VHT-SIG field and a second VHT-SIG field according to the VHT-SIG field; and arranging the L-TF field, the L-SIG field, the first VHT-SIG field, the VHT-STF field, one of the at least one VHT-LTF fields, the second VHT-SIG field and the rest of the at least one VHT-LTF fields in a predetermined sequence.

Claims

1. A method of arranging a packet for a transmitter in a wireless communication system to assist with a data decoding process, the method comprising:

generating, by a processor of the transmitter, a first very high throughput signal (VHT-SIG) field and a second VHT-SIG field; and

arranging, by the processor, a legacy training field (L-TF), a legacy signal field (L-SIG), the first VHT-SIG field, a very high throughput short training field (VHT-STF), one of at least one very high throughput long training fields (VHT-LTF), the second VHT-SIG field and rest of the at least one VHT-LTF fields in a predetermined sequence as a preamble sequence of the packet;

wherein the second VHT-SIG field comprises individual information corresponding to each of a plurality of users.

2. The method claim 1, wherein generating the first VHT-SIG field and the second VHT-SIG field according to the VHT-SIG field is achieved by dividing the VHT-SIG field into the first VHT-SIG field and the second VHT-SIG field.

3. The method claim 1, wherein the first VHT-SIG field comprises common information corresponding to the plurality of users.

4. The method claim 1, wherein the individual information comprises a length of a physical layer convergence procedure (PLCP) protocol data unit (PSDU) field for each user.

5. The method claim 1, wherein the data sequence comprises a service field, a physical layer convergence procedure (PLCP) service data unit (PSDU) field, a tail field and a pad field, and the method further comprises:

arranging the service field, the PSDU field, the tail field and the pad field sequentially.

6. A transmitter of a wireless communication system for performing the method of claim 1.

7. A method of arranging a packet for a transmitter in a wireless communication system to assist with a data decoding process, the method comprising:

generating, by a processor of the transmitter, a first very high throughput signal (VHT-SIG) field and a second VHT-SIG field; and

arranging, by the processor, a legacy training field (L-TF), a legacy signal field (L-SIG), the first VHT-SIG field, a very high throughput short training field (VHT-STF), at least one very high throughput long training fields (VHT-LTF) and the second VHT-SIG field in a predetermined sequence as a preamble sequence of the packet;

wherein the second VHT-SIG field comprises individual information corresponding to each of a plurality of users.

8. The method claim 7, wherein generating the first VHT-SIG field and the second VHT-SIG field according to the VHT-SIG field is achieved by dividing the VHT-SIG field into the first VHT-SIG field and the second VHT-SIG field.

9. The method claim 7, wherein the first VHT-SIG field comprises common information corresponding to the plurality of users.

10. The method claim 7, wherein the individual information comprises a length of a physical layer convergence procedure (PLCP) protocol data unit (PSDU) field for each user.

11. The method claim 7, wherein the data sequence comprises a service field, a physical layer convergence procedure (PLCP) service data unit (PSDU) field, a tail field and a pad field, and the method further comprises:

arranging the service field, the PSDU field, the tail field and the pad field sequentially.

12. A transmitter of a wireless communication system for performing the method of claim 7.