Information indication method and equipment

Abstract

The embodiment of the invention provides an information indication method, comprising the steps: network side equipment and user equipment (UE) communicates and distributes corresponding data streams for the UE according to UE attributes; the network side equipment sends downlink control information (DCI) to the UE, wherein the DCI comprises DMRS (Demodulation Reference Symbol) port / SCID (Scrambling Initialization) combined or DMRS port / SCID / Rank combined information indication; and the network side equipment sends the corresponding data stream to the UE through the DMRS port. The embodiment of the invention further provides the network side equipment and the UE. According to the scheme provided by the invention, by means of combined coding of a newly introduced control bit and transport block switch as well as an NDI (New Data Indication) bit state under single codeword transmission, the signalling expense can be effectively reduced. In addition, the network side equipment informs a user of DMRS distribution and the SCID of the DMRS by means of the DCI, so that the user can determine whether a scrambling user using same SCID as that of the user exists or not and perform effective inhibition on the scrambling.

Description

technical field [0001] The present invention relates to the field of digital communication, in particular, the present invention relates to a method and equipment for information indication. Background technique [0002] Mobile and broadband have become the development direction of modern communication technology. 3GPP (3rd Generation Partnership Project) is committed to the evolution of LTE (Long Term Evolution, long-term evolution) system as a 3G system. The goal is to develop 3GPP wireless access technology towards Evolution for high data rate, low latency and optimized packet data applications. [0003] During the downlink MIMO (Multi-input Multi-output, single-user multiple-input multiple-output) transmission process, the eNB will provide each The UE is scheduled to allocate a certain number of parallel data streams, and each data stream is called a layer. In order to support a spatial multiplexing technology of up to 8 layers, a DMRS (Demodulation Reference Symbol, d...

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Problems solved by technology

However, the above scheme does not support the joint indication of DMRS port and SCID, so 1 bit is required for SCID indication alone. In this case, the indication information for port + SCID will reach 4 bits, obviously the utilization rate of information bits is low

[0010] In addition, in the above solution, the UE cannot know whether there is interference data configured with the same SCID, so detection algorithms such as ZF and MMSE cannot be used to suppress the interference, and the existing resources cannot be fully utilized to optimize the receiving performance of the UE.

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