Antenna port mapping method and network device

A network device, comprising a processor and a memory, wherein the memory stores executable instructions, and the processor reads the executable instructions in the memory to perform the following operations:

• determining a polarization direction of each physical antenna of P physical antennas of the network device and an antenna array to which each physical antenna of the P physical antennas belongs, wherein P is a multiple of 4;
• and
• mapping a first antenna port and a second antenna port to a first group of physical antennas and a second group of physical antennas in the P physical antennas respectively, and
• mapping a third antenna port and a fourth antenna port to a third group of physical antennas and a fourth group of physical antennas in the P physical antennas respectively, wherein a physical antenna in the first group of physical antennas and a physical antenna in the second group of physical antennas belong to a same antenna array, wherein a physical antenna in the third group of physical antennas and a physical antenna in the fourth group of physical antennas belong to a same antenna array, wherein a polarization direction of the physical antenna in the first group of physical antennas is the same as a polarization direction of the physical antenna in the third group of physical antennas, and wherein a polarization direction of the physical antenna in the second group of physical antennas is the same as a polarization direction of the physical antenna in the fourth group of physical antennas.

A non-transitory computer readable medium, configured to store program instructions, and when the computer software instructions are executed, cause a network device to:

• determine a polarization direction of each physical antenna of P physical antennas of the network device and an antenna array to which each physical antenna of the P physical antennas belongs, wherein P is a multiple of 4;
• and
• map a first antenna port and a second antenna port to a first group of physical antennas and a second group of physical antennas in the P physical antennas respectively, and
• map a third antenna port and a fourth antenna port to a third group of physical antennas and a fourth group of physical antennas in the P physical antennas respectively, wherein a physical antenna in the first group of physical antennas and a physical antenna in the second group of physical antennas belong to a same antenna array, wherein a physical antenna in the third group of physical antennas and a physical antenna in the fourth group of physical antennas belong to a same antenna array, wherein a polarization direction of the physical antenna in the first group of physical antennas is the same as a polarization direction of the physical antenna in the third group of physical antennas, and wherein a polarization direction of the physical antenna in the second group of physical antennas is the same as a polarization direction of the physical antenna in the fourth group of physical antennas.