Information transmission method and device
A technology for information transmission and transmission mode, applied in the field of information transmission methods and devices, can solve the problems that the SIC cannot be eliminated by indicating the user serial interference, and the DCI cannot be used to indicate the superimposed transmission of the two users.
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Embodiment 1
[0058] In this embodiment, an information transmission method is provided, figure 1 is a flowchart of an information transmission method according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:
[0059] Step S102, sending signal indication information to the receiver, and transmitting a signal according to the signal indication information; wherein, the signal indication information includes at least one of the following: transmission mode, interference layer information, power ratio indication information, precoding or port Information, physical resource block PRB indication information.
[0060] Optionally, the execution subject of the foregoing steps may be a base station (transmitter), etc., but is not limited thereto.
[0061] Optionally, in this embodiment, the application scenario of the above information transmission method includes but is not limited to supporting non-orthogonal superposition transmiss...
example 1
[0095] Option One:
[0096] The transmission mode includes: a first transmission mode and a second transmission mode; further, the first transmission mode is a MUST mode, and the second transmission mode is a non-MUST mode. Use 1 bit to indicate the transmission mode, as shown in Table 1:
[0097] Table 1
[0098] MUST switch value
MUST(enabled)
0
on
1
off
[0099] Solution 2: Jointly indicate the transmission mode and interference layer information; as shown in Table 2, the first line means that the system works in a non-MUST mode. Line 2 means that the system works in MUST mode, and the receiver has interference on the first layer. Line 3 means that the system works in MUST mode, and the receiver has interference on the second layer. Line 4 means that the system works in MUST mode, and the receiver has interference on the first layer and the second layer. The remaining 4 states can be used to indicate other information.
[0100] ...
example 2
[0103] The interference layer information includes interference layer indication information, including at least one of the following: layer 1, layer 2, layer 1, and layer 2;
[0104] Jointly indicate the interference layer indication information and the layer information of the target UE; when the DCI format is DCI2C, redefine the "antenna port, scrambling code ID, layer number" joint field of the target UE to indicate the interference layer information, and the antenna port of the target UE , scrambling code ID, number of layers; when the MUST mode is used, the interference layer indication information in the redefinition domain is valid, and when the MUST mode is not used, the indication information in the redefinition domain is invalid.
[0105] As shown in Table 3, jointly indicate the interference layer information, and the antenna port, scrambling code ID, and layer number of the target UE.
[0106] When the MUST mode is used and the number of layers of the target UE is...
PUM
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