Reference signals extension for massive mimo system
AssigneeLG ElectronicsInc.
InventorsKilbom LEE, Jiwon KANG, Hyunsoo KO, Jaehoon CHUNG
Life of this patent
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Abstract
Reference signals (RSs) transmission scheme for massive MIMO system is disclosed. For this, ‘M’ resource blocks (RBs) are grouped into a resource block group (M>1). One or more antenna ports are grouped into one antenna group, wherein each of the antenna ports corresponds to each of the multiple antennas. The reference signals of the one antenna group are mapped into only one RB within one resource block group.
Claims15
A method for a base station having multiple antennas to transmit reference signals to user equipments (UEs), the method comprising:
- grouping ‘M’ resource blocks (RBs) into a resource block group, wherein the ‘M’ is greater than 1, wherein a number of the multiple antennas is greater than 8;
- grouping one or more antenna ports into one antenna group, wherein each of the antenna ports corresponds to each of the multiple antennas;
- mapping the reference signals of the one antenna group into only one RB within one resource block group;
- and
- transmitting the reference signals to the UEs.
A method for a user equipment (UE) to receive reference signals from one or more base stations, the method comprising:
- receiving the reference signals from the base stations, wherein ‘M’ resource blocks (RBs) are grouped into a resource block group, wherein the ‘M’ is greater than 1, wherein the reference signals are transmitted by 8 or more antennas, wherein one or more antenna ports are grouped into one antenna group, wherein each of the antenna ports corresponds to each of the multiple antennas, wherein the reference signals of the one antenna group are received via only one RB within one resource block group;
- and
- estimating channel based on the received reference signals.
A base station device comprising:
- multiple antennas to transmit reference signals to user equipments (UEs), wherein a number of the multiple antennas is greater than 8;
- and
- a processor connected to the multiple antennas, and adapted to:
- group ‘M’ resource blocks (RBs) into a resource block group, wherein the ‘M’ is greater than 1,
- group one or more antenna ports into one antenna group, wherein each of the antenna ports corresponds to each of the multiple antennas;
- map the reference signals of the one antenna group into only one RB within one resource block group.
A method for a user equipment (UE) to receive reference signals from one or more base stations, the method comprising:
- receiving the reference signals from the base stations, wherein ‘M’ resource blocks (RBs) are grouped into a resource block group, wherein the ‘M’ is greater than 1, wherein the reference signals are transmitted by 8 or more antennas, wherein one or more antenna ports are grouped into one antenna group, wherein each of the antenna ports corresponds to each of the multiple antennas, wherein the reference signals of the one antenna group are received via only one RB within one resource block group;
- and
- estimating channel based on the received reference signals.
Dependencies are inferred from the claim text.