SERVICE PACKET SENDING AND RECEIVING METHOD, APPARATUS, AND SYSTEM

• US 20130250946A1
• Filed: 05/15/2013
• Published: 09/26/2013
• Est. Priority Date: 03/06/2012
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Meng, Yu
• Granted Patent: US 9,413,633 B2
• Time in Patent Office: Days
• US Class Current: 370/389
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0007 by modifying the frame length
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0086 Unequal error protection H04L27/00 and H04L1/004 take precedence for layer 1/2 aspects, e.g. bit loading
• CPC Class Codes: H04L 1/205 jitter monitoring
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 47/2441 relying on flow classification, e.g. using integrated services [IntServ]
• CPC Class Codes: H04L 47/365 Dynamic adaptation of the packet size
• CPC Class Codes: H04L 47/38 by adapting coding or compression rate
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities

Abstract

The present disclosure discloses network devices and systems for sending and receiving service packet. The network device is configured to: receive an insensitive service packet; obtain a current slicing length according to a modulation mode of a communication link; perform slicing processing once on the insensitive service packet according to the current slicing length to obtain one slice, and send the slice through the communication link, If the current slicing length is smaller than a length of the insensitive service packet, for the remaining part of the insensitive service packet which has undergone the slicing processing once, the network device repeats the obtaining of the current slicing length, the slicing processing, and the sending the slice, until the insensitive service packet is completely sent.

Claims

1. A method, comprising:

receiving, by a network device having a processor, an insensitive service packet;

obtaining, by the network device, a current slicing length according to a modulation mode of a communication link, wherein the modulation mode of the communication link reflects transmission quality of a current packet and is determined by an adaptive coding and modulation engine;

performing, by the network device, slicing processing once on the insensitive service packet according to the current slicing length to obtain one slice, and sending the slice through the communication link; and

if the current slicing length is smaller than a length of the insensitive service packet, for the remaining part of the insensitive service packet which has undergone the slicing processing once, repeating the obtaining of the current slicing length, the slicing processing, and the sending the slice, until the insensitive service packet is completely sent.

2. The method according to claim 1, wherein the slice comprises a header indication and slice content;

the header indication comprises a checking indication, a one-bit type indication, a one-bit end indication, and a 14-bit length indication.

3. A method, comprising:

receiving, by a network device having a processor, a slice, wherein the slice is formed after a sending apparatus performs slicing processing on an insensitive service packet according to a current slicing length, the current slicing length is obtained by the sending apparatus according to a modulation mode of a communication link, and the modulation mode of the communication link reflects transmission quality of a current packet and is determined by an adaptive coding and modulation engine;

determining, by the network device, that the slice is not the last slice of all slices of the insensitive service packet, obtaining the current slicing length according to the modulation mode, and performing length checking on the slice according to the current slicing length; and

if a result of the length checking is correct, for a slice which is not received and is in all slices of the insensitive service packet, repeating the step of receiving the slice, the step of obtaining the current slicing length, and the step of length checking, until all the slices are received.

4. The method according to claim 3, wherein the slice comprises a header indication and slice content;

the header indication comprises a checking indication, a one-bit type indication, a one-bit end indication, and a 14-bit length indication; and

the performing length checking on the slice according to the current slicing length comprises;

performing length checking on the slice content according to the current slicing length.

5. The method according to claim 3, wherein the performing length checking on the slice according to the current slicing length comprises:

if a length of the slice is equal to the current slicing length, the result of the length checking is correct; and

if the length of the slice is not equal to the current slicing length, generate alarm information.

6. A network device having a processor connected to a non-transitory memory storage, the non-transitory memory storage is configured to store:

a receiving unit, configured to receive an insensitive service packet;

a slicing length obtaining unit, configured to obtain a current slicing length according to a modulation mode of a communication link, wherein the modulation mode of the communication link reflects transmission quality of a current packet and is determined by an adaptive coding and modulation engine;

a slicing unit, configured to perform slicing processing once on the insensitive service packet according to the current slicing length to obtain one slice;

a sending unit, configured to send the slice through the communication link;

a determining unit, configured to determine whether the current slicing length is smaller than a length of the insensitive service packet; and

a cycling unit, configured to;

when it is determined that the current slicing length is smaller than the length of the insensitive service packet, sequentially send the remaining part of the insensitive service packet which has undergone the slicing processing once in the slicing unit to the slicing length obtaining unit, the slicing unit, and the sending unit, to repeat the step of obtaining the current slicing length, the step of slicing processing, and the step of sending the slice, until the insensitive service packet is completely sent.

7. The network device according to claim 6, wherein the slice comprises a header indication and slice content;

the header indication comprises a checking indication, a one-bit type indication, a one-bit end indication, and a 14-bit length indication.

8. A network device having a processor connected to a non-transitory memory storage, the non-transitory memory storage is configured to store:

a receiving unit, configured to receive a slice, wherein the slice is formed after a sending apparatus performs slicing processing on an insensitive service packet according to a current slicing length, the current slicing length is obtained by the sending apparatus according to a modulation mode of a communication link, and the modulation mode of the communication link reflects transmission quality of a current packet and is determined by an adaptive coding and modulation engine;

a slicing length obtaining unit, configured to determine that the slice is not the last slice of all slices of the insensitive service packet, and obtain the current slicing length according to the modulation mode;

a checking unit, configured to perform length checking on the slice according to the current slicing length; and

a cycling unit, configured to;

when a result of the length checking is correct, for a slice which is not received and is in all slices of the insensitive service packet, sequentially trigger the receiving unit, the slicing length obtaining unit, and the checking unit, to repeat the step of receiving the slice, the step of obtaining the current slicing length, and the step of length checking, until all the slices are received.

9. The network device according to claim 8, wherein the slice comprises a header indication and slice content;

the header indication comprises a checking indication, a one-bit type indication, a one-bit end indication, and a 14-bit length indication; and

the checking unit is configured to perform length checking on the slice content according to the current slicing length.

10. The network device according to claim 8, wherein the checking unit comprises:

a first subunit, configured to determine whether a length of the slice is equal to the current slicing length;

a second subunit, configured to;

when the first subunit determines that the length of the slice is equal to the current slicing length, output information that the result of the length checking is correct; and

a third subunit, configured to;

when the first subunit determines that the length of the slice is not equal to the current slicing length, generate and output alarm information.