Data processing method, transmission control device, and receive end
AssigneeHuawei Technologies Co., Ltd.
InventorsPengpeng DONG, Weiming DUAN
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Abstract
Embodiments of the present application provide a data processing method. In the data processing method, before channel coding, a transmission control device divides a data flow into N sub-data flows, allocates the N sub-data flows to N transmit ends, and notifies the N transmit ends of a same time-frequency resource used for sending the allocated sub-data flows. By applying the technical solution, the N transmit ends can send different sub-data flows of a same data flow to a same receive end on the same time-frequency resource without a large amount of signaling interworking, and a system throughput can be improved without increasing network implementation complexity.
Claims15
A data processing method, comprising:
- determining, by a receive end, a channel matrix
- (
- H
- 1
- O
- H
- i
- O
- H
- N
- )
- of a downlink spatial channel from each of N transmit ends (T1, . . . , Ti, . . . , and TN) to the receive end;
- determining, by the receive end, a combination
- (
- W
- 1
- O
- W
- i
- O
- W
- N
- )
- of an precoding matrix of that transmit end from a precoding matrix codebook of the transmit end, wherein i is an integer greater than or equal to 1 and less than or equal to N, Wi is a precoding matrix of a transmit end Ti, and
- (
- H
- 1
- O
- H
- i
- O
- H
- N
- )
- ×
- (
- W
- 1
- O
- W
- i
- O
- W
- N
- )
- satisfies an orthogonalization criterion;
- and
- notifying, by the receive end, the transmit end of the precoding matrix of the transmit end.
A receive end, comprising a processor and a transceiver, wherein
- wherein the processor is configured to determine a channel matrix
- (
- H
- 1
- O
- H
- i
- O
- H
- N
- )
- of a downlink spatial channel from each of N transmit ends (T1, . . . , Ti, . . . , and TN) to the receive end;
- wherein the processor is further configured to determine a combination
- (
- W
- 1
- O
- W
- i
- O
- W
- N
- )
- of a precoding matrix of that transmit end from a precoding matrix codebook of the transmit end, wherein i is an integer greater than or equal to 1 and less than or equal to N, Wi is an optimal precoding matrix of a transmit end Ti, and
- (
- H
- 1
- O
- H
- i
- O
- H
- N
- )
- ×
- (
- W
- 1
- O
- W
- i
- O
- W
- N
- )
- satisfies an orthogonalization criterion;
- and
- wherein the transceiver is further configured to notify the transmit end of the precoding matrix of the transmit end.
A transmit end, comprising:
- a receiver, a processor and a transmitter;
- wherein the receiver is configured to receive a sub-data flow i of N sub-data flows that are divided from a data flow and that are allocated to N transmit ends, wherein the transmit end Ti is any one of the N transmit ends;
- wherein the processor is configured to:
- generate Ci codewords from the sub-data flow i, and perform Li layers of MIMO layer mapping on the Ci codewords;
- and
- wherein the transmitter is configured to send the sub-data flow i to a receive end after the MIMO layer mapping.
Dependencies are inferred from the claim text.