DATA TRANSMISSION METHOD, APPARATUS, TRANSMITTING END, RECEIVING END AND SYSTEM

• US 20190349296A1
• Filed: 07/18/2019
• Published: 11/14/2019
• Est. Priority Date: 01/20/2017
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Inventors: LIU, Jianhua
• Granted Patent: US 11,050,665 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 45/74 Address processing for routing
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04W 28/065 using assembly or disassembly of packets

Abstract

An apparatus, a transmitting end, a receiving end and a system are provided. The method includes: generating a data packet of a preset format according to n data units and attribute information of each data unit, where the attribute information includes transmission channel information and a data length of the each data unit, n≥2; and transmitting the data packet to a receiving end, where the data packet includes header information and the n data units, and at least one piece of the header information is generated according to same information in attribute information of at least two of the data units. Since at least one piece of header information is generated according to the same information in the attribute information of at least two data units, that is, the transmitting end can omit, in the header information, the same information in the attribute information.

Claims

1. A data transmission method, comprising:

generating a data packet of a preset format according to n data units and attribute information of each data unit, wherein the attribute information comprises transmission channel information and a data length of the each data unit, n≥

2; and

transmitting the data packet to a receiving end, wherein the data packet comprises header information and the n data units, and at least one piece of the header information is generated according to same information in attribute information of at least two of the data units.

2. The method according to claim 1, wherein the data packet comprises m data unit sets, each data unit set comprises one piece of header information and k data units corresponding to the header information, wherein attribute information of the k data units is the same, and a sum of all data unit quantities k is n;

m≥

1, k≥

1;

wherein the header information comprises transmission channel information of a data unit in the each data unit set, data length information, and a data unit quantity k of the each data unit set, wherein the data length information is a data length of one of the data units or a total data length of the k data units.

3. A transmitting end, wherein the transmitting end comprises:

a processor and a transmitter;

the processor is configured to generate a data packet of a preset format according to n data units and attribute information of each data unit, wherein the attribute information comprises transmission channel information and a data length of the each data unit, n≥

2; and

the transmitter is configured to transmit the data packet to a receiving end, wherein the data packet comprises header information and the n data units, and at least one piece of the header information is generated according to same information in attribute information of at least two of the data units.

4. The transmitting end according to claim 3, wherein the data packet comprises in data unit sets, each data unit set comprises one piece of header information and k data units corresponding to the header information, wherein attribute information of the k data units is the same, and a sum of all data unit quantities k is n;

m≥

1, k>

1;

wherein the header information comprises transmission channel information of a data unit in the each data unit set, data length information, and a data unit quantity k in the each data unit set, wherein the data length information is a data length of one of the data units or a total data length of the k data units.

5. The transmitting end according to claim 4, wherein,

the m data unit sets are cascaded, and the header information in each data unit set is located before the k data units corresponding to the header information;

or,

m pieces of the header information are cascaded, the n data units are cascaded, and the cascaded header information is located before or after the cascaded data units.

6. The transmitting end according to claim 3, wherein the data packet comprises i data unit sets, each data unit set comprises j data unit subsets, each data unit subset comprises one piece of header information and s data units corresponding to the header information, wherein attribute information of the data units in a same data unit subset is the same, attribute information of data units in different data unit subsets is partially the same, and a sum of all data unit quantities s is n;

i≥

1, j≥

2, s≥

1;

wherein one of j pieces of header information comprised in each data unit set comprises a first identifier, the transmission channel information, data length information, and a data unit quantity s, and each of the rest pieces of the head information comprised in the each data unit set comprises a second identifier, difference information and a data unit quantity s, wherein the data length information is a data length of one of the data units or a total data length of the s data units;

the first identifier in the header information is used to indicate that the header information comprises the transmission channel information and the data length information;

the second identifier in the header information is used to indicate that the header information comprises the difference information;

wherein the difference information is determined according to different information in attribute information of data units in different data unit subsets in a same data unit set.

7. The transmitting end according to claim 3, wherein the data packet comprises i data unit sets, each data unit set comprises j data unit subsets, each data unit subset comprises one piece of header information and s data units corresponding to the header information, wherein attribute information of the data units in a same data unit subset is the same, attribute information of data units in different data unit subsets is partially the same, and a sum of all data unit quantities s is n;

i≥

1, j≥

2, s≥

1;

wherein one of j pieces of header information comprised in each data unit set comprises a first identifier, the transmission channel information, data length information and a data unit quantity s, and each of the rest pieces of the head information comprised in the each data unit set comprises a second identifier and difference information, wherein the data length information is a data length of one of the data units or a total data length of the s data units;

the first identifier in the header information is used to indicate that the header information comprises the transmission channel information, the data length information and the data unit quantity s;

the second identifier in the header information is used to indicate that the header information comprises the difference information;

wherein the difference information is determined according to different information in data unit quantities s and attribute information of data units in different data unit subsets in a same data unit set.

8. The transmitting end according to claim 6, wherein,

the i data unit sets are cascaded, the j data unit subsets are cascaded, and the header information in each data unit subset is located before the s data units corresponding to the header information;

or,

q pieces of the header information are cascaded, the n data units are cascaded, and the cascaded header information is located before or after the cascaded data units, wherein q is a sum of data unit subset quantities j for the i data unit sets.

9. The transmitting end according to claim 3, wherein the data packet comprises packet head information and i data unit sets, each data unit set comprises j data unit subsets, each data unit subset comprises one piece of header information and s data units corresponding to the header information, wherein attribute information of the data units in a same data unit subset is the same, attribute information of data units in different data unit subsets is partially the same, and a sum of all data unit quantities s is n;

i≥

1, j≥

2, s≥

1;

wherein one of j pieces of header information comprised in each data unit set comprises the transmission channel information, data length information and a data unit quantity s, and each of the rest pieces of the head information comprised in the each data unit set comprises difference information and a data unit quantity s, wherein the data length information is a data length of one of the data units or a total data length of the s data units;

wherein the packet head information comprises a first flag bit, wherein the first flag bit is used to indicate that each piece of header information comprises the transmission channel information and the data length information, or the first flag bit is used to indicate that each piece of header information comprises the difference information;

wherein the difference information is determined according to different information in attribute information of data units in different data unit subsets in a same data unit set.

10. The transmitting end according to claim 3, wherein the data packet comprises packet head information and i data unit sets, each data unit set comprises j data unit subsets, each data unit subset comprises one piece of header information and s data units corresponding to the header information, wherein attribute information of the data units in a same data unit subset is the same, attribute information of data units in different data unit subsets is partially the same, and a sum of all data unit quantities s is n;

i≥

1, j≥

2, s≥

1;

wherein one of j pieces of header information comprised in each data unit comprises the transmission channel information, data length information and a data unit quantity s, and each of the rest pieces of the head information comprised in the each data unit comprises difference information, wherein the data length information is a data length of one of the data units or a total data length of the s data units;

wherein the packet head information comprises a first flag bit, wherein the first flag bit is used to indicate that each piece of header information comprises the transmission channel information, the data length information and the data unit quantity s, or, the first flag bit is used to indicate that each piece of header information comprises the difference information;

wherein the difference information is determined according to different information in data unit quantities s and attribute information of data units in different data unit subsets in a same data unit set.

11. The transmitting end according to claim 9, wherein,

the i data unit sets are cascaded, the j data unit subsets are cascaded, the header information in each data unit subset is located before the s data units corresponding to the header information, and the packet head information is located before or after the cascaded data unit sets;

or,

q pieces of the header information are cascaded, the n data units are cascaded, the cascaded header information is located before or after the cascaded data units, and the packet head information is located before the cascaded header information or after the cascaded data units, wherein q is a sum of data unit subset quantities j for the i data unit sets.

12. A receiving end, wherein the receiving end comprises:

a receiver and a processor;

the receiver is configured to receive a data packet of a preset format transmitted by a transmitting end, wherein the data packet comprises header information and n data units, and at least one piece of the header information is generated according to same information in attribute information of at least two of the data units, wherein the attribute information comprises transmission channel information and a data length of a data unit, n≥

2; and

the processor is configured to decapsulate the data packet received by the receiving unit.

13. The receiving end according to claim 12, wherein the data packet comprises in data unit sets, each data unit set comprises one piece of header information and k data units corresponding to the header information, wherein attribute information of the k data units is the same, and a sum of all data unit quantities k is n;

m≥

1, k≥

1;

the processor is specifically configured to;

read, for each data unit set, the header information in the data unit sets; and

decapsulate the data units in the data unit sets according to the transmission channel information, data length information and a data unit quantity k in the header information, wherein the data length information is a data length of one of the data units or a total data length of the k data units.

14. The receiving end according to claim 13, wherein the processor is further configured to:

read the header information of each data unit set from an initial location of the each data unit set, when the m data unit sets are cascaded, and the header information in each data unit set is located before the k data units corresponding to the header information; and

read each piece of header information from a preset location of cascaded header information, when in pieces of the header information are cascaded, the n data units are cascaded, and the cascaded header information is located before or after the cascaded data units.

15. The receiving end according to claim 12, wherein the data packet comprises i data unit sets, each data unit set comprises j data unit subsets, each data unit subset comprises one piece of header information and s data units corresponding to the header information, wherein attribute information of the data units in a same data unit subset is the same, attribute information of data units in different data unit subsets is partially the same, and a sum of all data unit quantities s is n;

i≥

1, j≥

2, s≥

1;

the processor is specifically configured to;

read, for each data unit set, the header information in each data unit subset in the each data unit set;

decapsulate, for each piece of first header information, the data units corresponding to the first header information according to the transmission channel information, data length information and a data unit quantity s which are read from the first header information, when the first header information comprises a first identifier and the first identifier is used to indicate that the first header information comprises the transmission channel information and the data length information;

wherein the data length information is a data length of one of the data units or a total data length of the s data units; and

decapsulate, for each piece of second header information, the data units corresponding to the second header information according to difference information and a data unit quantity s which are read from the second header information as well as the first header information comprising the first identifier, when the second header information comprises a second identifier and the second identifier is used to indicate that the second header information comprises the difference information;

wherein the difference information is determined according to different information in attribute information of data units in different data unit subsets in a same data unit set.

16. The receiving end according to claim 12, wherein the data packet comprises i data unit sets, each data unit set comprises j data unit subsets, each data unit subset comprises one piece of header information and s data units corresponding to the header information, wherein attribute information of the data units in a same data unit subset is the same, attribute information of data units in different data unit subsets is partially the same, and a sum of all data unit quantities s is n;

i≥

1, j≥

2, s≥

1;

the processor is specifically configured to;

read, for each data unit set, the header information in each data unit subset in the each data unit set;

decapsulate, for each piece of first header information, the data units corresponding to the first header information according to the transmission channel information, data length information and a data unit quantity s which are read from the first header information, when the first header information comprises a first identifier and the first identifier is used to indicate that the first header information comprises the transmission channel information, the data length information and the data unit quantity s;

wherein the data length information is a data length of one of the data units or a total data length of the s data units; and

decapsulate, for each piece of second header information, the data units corresponding to the second header information according to difference information read from the second header information as well as the first header information comprising the first identifier, when the second header information comprises a second identifier and the second identifier is used to indicate that the second header information comprises the difference information;

wherein the difference information is determined according to different information in data unit quantities s and attribute information of data units in different data unit subsets in a same data unit set.

17. The receiving end according to claim 15, wherein the processor is further configured to:

read the header information of each data unit subset from an initial location of the each data unit subset, when the i data unit sets are cascaded, the j data unit subsets are cascaded, and the header information in each data unit subset is located before the s data units corresponding to the header information; and

read each piece of header information from a preset location of cascaded header information, when q pieces of the header information are cascaded, the n data units are cascaded, and the cascaded header information is located before or after the cascaded data units, wherein q is a sum of data unit subset quantities j for the i data unit sets.

18. The receiving end according to claim 12, wherein the data packet comprises packet head information and i data unit sets, each data unit set comprises j data unit subsets, each data unit subset comprises one piece of header information and s data units corresponding to the header information, wherein attribute information of the data units in a same data unit subset is the same, attribute information of data units in different data unit subsets is partially the same, and a sum of all data unit quantities s n;

i≥

1, j≥

2, s≥

1;

the processor is specifically configured to;

read a first flag bit corresponding to each piece of header information in the packet head information;

read, for each data unit set, the header information in each data unit subset in the each data unit set;

decapsulate, for each piece of third header information, the data units corresponding to the third header information according to the transmission channel information, data length information and a data unit quantity s which are read from the third header information, when the first flag bit corresponding to the third header information indicates that third the header information comprises the transmission channel information and the data length information;

wherein the data length information is a data length of one of the data units or a total data length of the s data units; and

decapsulate, for each piece of fourth header information, the data units corresponding to the fourth header information according to difference information and a data unit quantity s which are read from the fourth header information as well as the third header information corresponding to the first flag bit that is used to indicate that the third header information comprises the transmission channel information and the data length information, when the first flag bit corresponding to the fourth header information indicates that the fourth header information comprises the difference information;

wherein the difference information is determined according to different information in attribute information of data units in different data unit subsets in a same data unit set.

19. The receiving end according to claim 12, wherein the data packet comprises packet head information and i data unit sets, each data unit set comprises j data unit subsets, each data unit subset comprises one piece of header information and s data units corresponding to the header information, wherein attribute information of the data units in a same data unit subset is the same, attribute information of data units in different data unit subsets is partially the same, and a sum of all data unit quantities s is n;

i≥

1, j≥

2, s≥

1;

the processor is specifically configured to;

read a first flag bit corresponding to each piece of header information in the packet head information;

read, for each data unit set, the header information in each data unit subset in the each data unit set;

decapsulate, for each piece of third header information, the data units corresponding to the third header information according to the transmission channel information, data length information and a data unit quantity s which are read from the third header information, when the first flag bit corresponding to the third header information indicates that the third header information comprises the transmission channel information, the data length information and the data unit quantity s;

wherein the data length information is a data length of one of the data units or a total data length of the s data units; and

decapsulate, for each piece of fourth header information, the data units corresponding to the fourth header information according to difference information read from the fourth header information as well as the third header information corresponding to the first flag bit that is used to indicate that the third header information comprises the transmission channel information, the data length information and the data unit quantity s, when the first flag bit corresponding to the fourth header information indicates that the fourth header information comprises the difference information;

wherein the difference information is determined according to different information in data unit quantities s and attribute information of data units in different data unit subsets in a same data unit set.

20. The receiving end according to claim 18, wherein the processor is further configured to:

read the header information in each data unit subset from an initial location of the each data unit subset, when the i data unit sets are cascaded, the j data unit subsets are cascaded, the header information in each data unit subset is located before the s data units corresponding to the header information, and the packet head information is located before or after the cascaded data unit sets; and

read each piece of header information from a preset location of cascaded header information, when q pieces of the header information are cascaded, the n data units are cascaded, the cascaded header information is located before or after the cascaded data units, and the packet head information is located before the cascaded header information or after the cascaded data units, wherein q is a sum of data unit subset quantities j for the i data unit sets.