Methods, devices and systems for broadcasting precoding matrix set and feeding back precoding matrix
A precoding matrix and indexing technology, which is applied in diversity/multi-antenna systems, space transmit diversity, etc., can solve the problems of increasing signaling overhead, information broadcast users without precoding matrix sets, etc., to save the number of bits and save the network resource effect
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[0033] The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.
[0034] figure 1 This is a flowchart of an embodiment of a method for broadcasting a precoding matrix set according to the present invention, and this embodiment includes:
[0035] Step 11: The base station adds the information of the precoding matrix set to the superframe preamble, such as QuickChannelInfo, or overhead messages, such as SectorParameter, ExtendedChannelInfo, or data The user indication message (MACID) of the channel (for example, F-SCCH), or any combination of the superframe preamble, overhead message, and user indication message of the data channel.
[0036]The information of the precoding matrix set is released by the base station. The base station uses a certain time interval as a unit and selects some precoding matrices from the entire preset precoding matrix set N according to a certain rule to form a candidat...
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