Patent ID: 11882602
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A data transmission apparatus, comprising:
at least one processor; and
a memory storing computer-executable instructions, wherein the computer-executable instructions, when executed by the at least one processor, cause the data transmission apparatus to:
receive a first random access request from a terminal device, wherein the first random access request is used to request first uplink scheduling information that indicates the terminal device uses a first transport block to transmit first user data in Msg 3, and the first transport block is used to transmit both signaling and user data;
send a first random access response to the terminal device in response to the first random access request, wherein the first random access response carries the first uplink scheduling information;
receive a first Msg 3 including both signaling and the first user data from the terminal device;
send the first user data to a mobility management entity;
receive a first end indication from the mobility management entity;
receive a second random access request from the terminal device, wherein the second random access request is used to request second uplink scheduling information that indicates the terminal device uses a second transport block to transmit second user data in Msg 3, and the second transport block is used to transmit both signaling and user data
send a second random access response to the terminal device in response to the second random access request, wherein the second random access response carries a third uplink scheduling information that indicates the terminal device uses a third transport block to transmit Msg 3, and the third transport block is used to transmit signaling, but is not used to transmit the second user data; and
receive a second Msg 3 including signaling from the terminal device,
wherein the second Msg 3 includes a radio resource control (RRC) connection request signaling; and
after receiving the second Msg 3, the computer-executable instructions, when executed by the at least one processor, further cause the data transmission apparatus to:
send a Msg 4 carrying an RRC connection setup signaling to the terminal device;
send a fourth uplink scheduling information to the terminal device, wherein the fourth uplink scheduling information is used for the terminal device to send the second user data; and
receive the second user data from the terminal device.