Methods of communicating data including symbol mapping/demapping and related devices

摘要

Data may be transmitted from a RAN node to a wireless terminal using a MIMO antenna array. A plurality of unmapped symbol blocks may be generated. Symbols of a first one of the plurality of unmapped symbol blocks may be mapped to first and second mapped symbol blocks so that the first mapped symbol block includes symbols of the first unmapped symbol block and so that the second mapped symbol block includes symbols of the first unmapped symbol block. The symbols of the first and second mapped symbol blocks may be precoded to provide precoded symbols of respective first and second MIMO precoding layers using a MIMO precoding vector. Each of the precoded symbols of the first and second MIMO precoding layers may be transmitted through the MIMO antenna array to the wireless terminal using a same TFRE. Related devices and terminals are also discussed.

主权项

1. A method of receiving data at a wireless terminal from a radio access network node using a multiple-input-multiple-output, MIMO, antenna array including a plurality of MIMO antenna elements, the method comprising:
decoding radio frequency signals received through the MIMO antenna elements of the MIMO antenna array using a MIMO decoding vector to generate a plurality of MIMO decoded symbol layers including a first decoded symbol block of a first of the MIMO decoded symbol layers and a second decoded symbol block of a second of the MIMO decoded symbol layers, wherein the first and second decoded symbol blocks represent data received during a same time-frequency-resource-element; demapping symbols of the first and second decoded symbol blocks to a first unmapped symbol block, so that the first unmapped symbol block includes symbols of the first and second decoded symbol blocks of the respective first and second MIMO decoded symbol layers; and demapping symbols of the first and second decoded symbol blocks to a second unmapped symbol block, so that the second unmapped symbol block includes symbols of the first and second MIMO decoded symbol blocks.