Implementing data scrambling transmission during user cooperation transmission

A method, comprising:

• scrambling, by a network device, first data using a first identifier, to obtain scrambled first data, wherein the first identifier identifies a first cooperation group, the first cooperation group comprises a first terminal device and a second terminal device, and the first data is data that is to be sent by the network device to the first terminal device;
• and
• sending, by the network device, the scrambled first data to the second terminal device;
• wherein scrambling, by the network device, the first data using the first identifier comprises determining a scrambling code sequence based on the first identifier, and scrambling the first data using the scrambling code sequence, wherein an initial sequence corresponding to the scrambling code sequence is a 31-bit binary sequence, 16 most significant bits of the initial sequence are a binary sequence of the first identifier, a 17th bit of the initial sequence is a binary sequence of a transport block quantity identifier, and 10 least significant bits of the initial sequence are a binary sequence of a data scrambling identifier.

A communication apparatus, comprising:

• one or more processors;
• and
• a memory configured to store program instructions;
• wherein, when executed by the one or more processors, the instructions cause the communications apparatus to:
• obtain first data comprising scrambled data from a network device based on a first identifier, wherein the first identifier identifies a first cooperation group, and the first cooperation group comprises the communication apparatus and a second terminal device;
• and
• forward the first data to the second terminal device;
• wherein an initial sequence corresponding to a scrambling code sequence is a 31-bit binary sequence, 16 most significant bits of the initial sequence are a binary sequence of the first identifier, a 17th bit of the initial sequence is a binary sequence of a transport block quantity identifier, and 10 least significant bits of the initial sequence are a binary sequence of a data scrambling identifier.

A communication apparatus, comprising:

• one or more processors, and
• a memory configure to store program instructions;
• wherein, when executed by the one or more processors, the instructions cause the communications apparatus to:
• scramble first data using a first identifier, wherein the first identifier identifies a first cooperation group, the first cooperation group comprises a first terminal device and a second terminal device, and the first data is data that is to be sent by the communication apparatus to the first terminal device;
• determine a scrambling code sequence based on the first identifier, and scramble the first data using the scrambling code sequence, wherein an initial sequence corresponding to the scrambling code sequence is a 31-bit binary sequence, 16 most significant bits of the initial sequence are a binary sequence of the first identifier, a 17th bit of the initial sequence is a binary sequence of a transport block quantity identifier, and 10 least significant bits of the initial sequence are a binary sequence of a data scrambling identifier;
• and
• send the scrambled first data to the second terminal device.