Service signal transmission method and apparatus

A service signal transmission method, applied to a first network device, wherein the method comprises:

• obtaining N first service signals, wherein coding types of the N first service signals are the same, at least two of the N first service signals have different transmission rates, and N is an integer greater than of equal to 2;
• inserting padding signals into the N first service signals, to obtain N second service signals that are in a one-to-one correspondence with the N first service signals, wherein transmission rates of the N second service signals are integer multiples of a reference rate;
• and
• multiplexing the N second service signals into one third service signal, and sending the third service signal to a second network device,
• wherein the inserting padding signals into the N first service signals, to obtain N second service signals that are in a one-to-one correspondence with the N first service signals comprises:
• for a first service signal A in the N first service signals, inserting a padding signal into the first service signal A based on a transmission rate of the first service signal A and the reference rate, to obtain a second service signal corresponding to the first service signal A, wherein the inserting a padding signal into the first service signal A based on a transmission rate of the first service signal A and the reference rate, to obtain a second service signal corresponding to the first service signal A comprises:
• determining X based on the transmission rate of the first service signal A, wherein X is a quantity of first signal units obtained in a unit time, and the first signal unit is a signal unit of the first service signal A;
• determining Y based on the transmission rate of the first service signal A and the reference rate, wherein Y is a quantity of second signal units that need to be inserted into a group of first signal units obtained in a unit time, and the second signal unit is a signal unit of the padding signal;
• and
• in a process of obtaining a group of first signal units in each unit time, inserting Y second signal units into X first signal units obtained in each unit time.

A service signal transmission method, applied to a first network device, wherein the method comprises:

• obtaining N first signals, wherein coding types of the N first service signals are the same, at least two of the N first service signals have different transmission rates, and N is an integer greater than or equal to 2;
• inserting padding signals into the N first service signals, to obtain N second service signals that are in a one-to-one correspondence with the N first service signals, wherein transmission rates of the N second service signals are integer multiples of a reference rate;
• and
• multiplexing the N second service signals into one third service signal, and sending the third service signal to a second network device,
• wherein the inserting padding signals into the N first service signals, to obtain N second service signals that are in a one-to-one correspondence with the N first service signals comprises:
• for a first service signal A in the N first service signals, inserting a padding signal into the first service signal A based on a transmission rate of the first service signal A and the reference rate, to obtain a second service signal corresponding to the first service signal A,
• wherein the inserting a padding signal into the first service signal A based on a transmission rate of the first service signal A and the reference rate, to obtain a second service signal corresponding to the first service signal A comprises:
• determining, based on the transmission rate of the first service signal A and the reference rate, a transmission rate of the second service signal corresponding to the first service signal A;
• and
• inserting the padding signal into the first service signal A based on the transmission rate of the first service signal A and the transmission rate of the second service signal corresponding to the first service signal A, to obtain the second service signal corresponding to the first service signal A.

A service signal transmission method, applied to a first network device, wherein the method comprises:

• obtaining N first signals, wherein coding types of the N first service signals are the same, at least two of the N first service signals have different transmission rates, and N is an integer greater than or equal to 2;
• inserting padding signals into the N first service signals, to obtain N second service signals that are in a one-to-one correspondence with the N first service signals, wherein transmission rates of the N second service signals are integer multiples of a reference rate;
• and
• multiplexing the N second service signals into one third service signal, and sending the third service signal to a second network device, wherein before the obtaining N first service signals, the method further comprises:
• receiving N fourth service signals, wherein there is a fourth service signal whose coding type is different from a target coding type in the N fourth service signals, and the target coding type is the coding type of the N first service signals;
• performing, based on the target coding type, coding conversion on the fourth service signal whose coding type is different from the target coding type in the N fourth service signals;
• and
• determining a coding-converted fourth service signal and a fourth service signal whose coding type is the same as the target coding type as the N first service signals.

A service signal transmission method, applied to a second network device, wherein the method comprises:

• receiving a third service signal sent by a first network device, wherein the third service signal is formed by multiplexing N second service signals, the N second service signals are obtained by inserting padding signals into N first service signals that are in a one-to-one correspondence with the N second service signals, transmission rates of the N second service signals are integer multiples of a reference rate, coding types of the N first service signals are the same, at least two of the N first service signals have different transmission rates, and N is an integer greater than or equal to 2;
• demultiplexing the third service signal into the N second service signals according to a multiplexing rule of the N second service signals;
• and
• deleting the padding signals from the N second service signals obtained through demultiplexing, to obtain the N first service signals, wherein
• the reference rate is determined based on transmission rates or configured rates of the N first service signals, and the determination of the reference rate based on transmission rates of the N first service signals comprises:
• determining 1/T of a transmission rate of a target first service signal as the reference rate, wherein the target first service signal is one of the N first service signals, and T is a positive integer;
• or
• according to a policy that a total quantity of bits of the padding signals inserted into the N first service signals is the smallest, selecting one service signal from the N first service signals, and using 1/T of a transmission rate of the selected service signal as the reference rate, wherein T is a positive integer.

A service signal transmission apparatus, applied to a first network device, wherein the apparatus comprises:

• an obtaining circuit, configured to obtain N first service signals, wherein coding types of the N first service signals are the same, at least two of the N first service signals have different transmission rates, and N is an integer greater than or equal to 2;
• an insertion circuit, configured to insert padding signals into the N first service signals, to obtain N second service signals that are in a one-to-one correspondence with the N first service signals, wherein transmission rates of the N second service signals are integer multiples of a reference rate;
• and
• a multiplexing circuit, configured to multiplex the N second service signals into one third service signal, and send the third service signal to a second network device, wherein
• the insertion circuit comprises a determination circuit configured to determine the reference rate based on transmission rates or configured rates of the N first service signals, and the determination of the reference rate based on the transmission rates of the N first service signals comprises:
• determining 1/T of a transmission rate of a target first service signal as the reference rate, wherein the target first signal is one of the N first service signals, and T is a positive integer, or
• according to a policy that a total quantity of bits of the padding signals inserted into the N first service signals is the smallest, selecting one service signal from the N first service signals, and using 1/T of a transmission rate of the selected service signal as the reference rate, wherein T is a positive integer.

A service signal transmission apparatus, applied to a first network device, wherein the apparatus comprises:

• an obtaining circuit, configured to obtain N first service signals, wherein coding types of the N first service signals are the same, at least two of the N first service signals have a different transmission rates, and N is an integer greater than of equal to 2;
• an insertion circuit, configured to insert padding signals into the N first service signals, to obtain N second service signals that are in a one-to-one correspondence with the N first service signals, wherein transmission rates of the N second service signals are integer multiples of a reference rate;
• and
• a multiplexing circuit, configured to multiplex the N second service signals into one third service signal, and send the third service signal to a second network device,
• wherein the insertion circuit comprises:
• a first insertion unit, configured to:
• for a first service signal A in the N first service signals, insert a padding signal into the first service signal A based on a transmission rate of the first service signal A and the reference rate, to obtain a second signal corresponding to the first service signal A, wherein the first insertion unit comprises:
• a first determining subunit, configured to determine X based on the transmission rate of the first service signal A, wherein X is a quantity of first signal units obtained in a unit time, and the first signal unit is a signal unit of the first service signal A;
• a second determining subunit, configured to determine Y based on the transmission rate of the first service signal A and the reference rate, wherein Y is a quantity of second signal units that need to be inserted into a group of first signal units obtained in a unit time, and the second signal unit is a signal unit of the padding signal;
• and
• an insertion subunit, configured to:
• in a process of obtaining a group of first signal units in each unit time, insert Y second signal units into X first signal units obtained in each unit time.