Message transmission method and device
Message transmission methods and devices for facilitating random access procedures are disclosed. In an implementation, a method includes: generating first signaling and second signaling, wherein the first signaling indicates at least one of a total quantity of maximum random access attempts or a maximum quantity of random access attempts at a signal coverage enhancement level 0 of a communication device of a first version, and the second signaling indicates a maximum quantity of random access attempts at the signal coverage enhancement level 0 of a communication device of a second version, and sending the first signaling and second signaling to a communication device.
1 . A message transmission method, comprising:
generating, by a device, first signaling, wherein the first signaling indicates a total quantity of maximum random access attempts and a maximum quantity of random access attempts at a signal coverage enhancement level 0 of a communication device of a first version, and and the maximum quantity of random access attempts at the signal coverage enhancement level 0 of the communication device of the first version is equal to or larger than the total quantity of maximum random access attempts of the communication device of the first version; and
sending, by the device, the first signaling to a communication device.
2 . The method according to claim 1 , wherein the communication device of the first version is capable of identifying the first signaling and is incapable of identifying the second signaling, and the communication device of the second version is capable of identifying both the first signaling and the second signaling.
3 . The method according to claim 1 , wherein the first signaling further indicates at least one of a maximum quantity of random access attempts at the signal coverage enhancement level 1 or a maximum quantity of random access attempts at the signal coverage enhancement level 2 of the communication device of the first version.
4 . The method according to claim 1 , wherein the second signaling further indicates at least one of a total quantity of maximum random access attempts, a maximum quantity of random access attempts at the signal coverage enhancement level 1, or a maximum quantity of random access attempts at the signal coverage enhancement level 2 of the communication device of the second version.
5 . The method according to claim 1 , wherein the method further comprises:
generating, by the device, second signaling, wherein the second signaling indicates a maximum quantity of random access attempts at the signal coverage enhancement level 0 of a device of a second version; and
sending, by the device, the second signaling to the communication device.
6 . A method, comprising:
receiving, by a device, first signaling, wherein the first signaling indicates a total quantity of maximum random access attempts and a maximum quantity of random access attempts at a signal coverage enhancement level 0 of a device of a first version, and the maximum quantity of random access attempts at the signal coverage enhancement level 0 of the communication device of the first version is equal to or larger than the total quantity of maximum random access attempts of the communication device of the first version; and
initiating, by the device, a random access attempt based on the first signaling.
7 . The method according to claim 6 , wherein the device of the first version is capable of identifying the first signaling and is incapable of identifying the second signaling, and the device of the second version is capable of identifying both the first signaling and the second signaling.
8 . The method according to claim 6 , wherein the first signaling further indicates at least one of a maximum quantity of random access attempts at the signal coverage enhancement level 1 or a maximum quantity of random access attempts at the signal coverage enhancement level 2 of the device of the first version.
9 . The method according to claim 6 , wherein the second signaling further indicates at least one of a total quantity of maximum random access attempts, a maximum quantity of random access attempts at the signal coverage enhancement level 1, or a maximum quantity of random access attempts at the signal coverage enhancement level 2 of the device of the second version.
10 . The method according to claim 6 , wherein the method further comprises:
receiving, by the device, second signaling, wherein the second signaling indicates a maximum quantity of random access attempts at the signal coverage enhancement level 0 of a device of a second version; and
initiating, by the device, a random access attempt based on the first signaling comprises: initiating, by the device, a random access attempt based on the first signaling in response to the device being the device of the first version.
11 . A device, comprising:
at least one processor; and
at least one memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
generate first signaling, wherein the first signaling indicates a total quantity of maximum random access attempts and a maximum quantity of random access attempts at the signal coverage enhancement level 0 of a communication device of a first version, and the maximum quantity of random access attempts at the signal coverage enhancement level 0 of the communication device of the first version is equal to or larger than the total quantity of maximum random access attempts of the communication device of the first version; and
send the first signaling to a communication device.
12 . The device according to claim 11 , wherein the communication device of the first version is capable of identifying the first signaling and is incapable of identifying the second signaling, and the communication device of the second version is capable of identifying both the first signaling and the second signaling.
13 . The device according to claim 11 , wherein the first signaling further indicates at least one of a maximum quantity of random access attempts at the signal coverage enhancement level 1 or a maximum quantity of random access attempts at the signal coverage enhancement level 2 of the communication device of the first version.
14 . The device according to claim 11 , wherein the second signaling further indicates at least one of a total quantity of maximum random access attempts, a maximum quantity of random access attempts at the signal coverage enhancement level 1, or a maximum quantity of random access attempts at the signal coverage enhancement level 2 of the communication device of the second version.
15 . The device according to claim 11 , wherein the at least one memory stores programming instructions for execution by the at least one processor to:
generate second signaling, wherein the second signaling indicates a maximum quantity of random access attempts at the signal coverage enhancement level 0 of a device of a second version; and
send the second signaling to the communication device.
16 . A device, comprising:
at least one processor; and
at least one memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
receive first signaling, wherein the first signaling indicates a total quantity of maximum random access attempts and a maximum quantity of random access attempts at a signal coverage enhancement level 0 of a device of a first version, and the maximum quantity of random access attempts at the signal coverage enhancement level 0 of the communication device of the first version is equal to or larger than the total quantity of maximum random access attempts of the communication device of the first version; and
initiate a random access attempt based on the first signaling.
17 . The device according to claim 16 , wherein the device of the first version is capable of identifying the first signaling and is incapable of identifying the second signaling, and the device of the second version is capable of identifying both the first signaling and the second signaling.
18 . The device according to claim 16 , wherein the first signaling further indicates at least one of a maximum quantity of random access attempts at the signal coverage enhancement level 1 or a maximum quantity of random access attempts at the signal coverage enhancement level 2 of the device of the first version.
19 . The device according to claim 16 , wherein the second signaling further indicates at least one of a total quantity of maximum random access attempts, a maximum quantity of random access attempts at the signal coverage enhancement level 1, or a maximum quantity of random access attempts at the signal coverage enhancement level 2 of the device of the second version.
20 . The device according to claim 16 , wherein the at least one memory stores programming instructions for execution by the at least one processor to:
receive second signaling, wherein the second signaling indicates a maximum quantity of random access attempts at the signal coverage enhancement level 0 of a device of a second version; and
initiate a random access attempt based on the first signaling in response to the device being the device of the first version.