Method and apparatus for robust MIMO transmission
AssigneeSamsung Electronics Co., Ltd.
InventorsMd. Saifur Rahman, Eko Onggosanusi, Dalin Zhu
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Abstract
A method for operating a user equipment (UE) comprises receiving information about a downlink (DL) transmission transmitted from NRRH>1 RRHs, wherein: NRRH=number of remote radio heads (RRHs), RRH r comprises a group of antenna ports, and r=1, . . . , NRRH; receiving the DL transmission; and decoding the information about the DL transmission; wherein the DL transmission is based on a scheme that is a combination of a precoding scheme and a diversity scheme, wherein the precoding scheme corresponds to applying an intra-RRH precoder component to antenna ports within an RRH, and wherein the diversity scheme corresponds to applying an inter-RRH diversity component to antenna ports across RRHs.
Claims20
A user equipment (UE) comprising:
- a transceiver configured to:
- receive information about a downlink (DL) transmission transmitted from N_RRH>1 remote radio head (RRH), wherein:
- N_RRH is a number of remote radio heads (RRHs),
- RRH r comprises a group of antenna ports, and
- r=1, . . . , N_RRH;
- and
- receive the DL transmission;
- and
- a processor operably coupled to the transceiver, the processor configured to decode the information about the DL transmission;
- wherein the DL transmission is based on a precoding scheme and a diversity scheme,
- wherein the precoding scheme corresponds to applying an intra-RRH precoder component to antenna ports within an RRH, and
- wherein the diversity scheme corresponds to applying an inter-RRH diversity component to antenna ports across RRHs.
A base station (BS) comprising:
- a processor configured to generate information about a downlink (DL) transmission transmitted from N_RRH>1 remote radio head (RRH), wherein:
- N_RRH is a number of remote radio heads (RRHs),
- RRH r comprises a group of antenna ports, and
- r=1, . . . , N_RRH;
- and
- a transceiver operably coupled to the processor, the transceiver configured to:
- transmit the information about the DL transmission, and
- transmit the DL transmission;
- wherein the DL transmission is based on a precoding scheme and a diversity scheme,
- wherein the precoding scheme corresponds to applying an intra-RRH precoder component to antenna ports within an RRH, and
- wherein the diversity scheme corresponds to applying an inter-RRH diversity component to antenna ports across RRHs.
A method for operating a user equipment (UE), the method comprising:
- receiving information about a downlink (DL) transmission transmitted from N_RRH>1 remote radio head (RRH), wherein:
- N_RRH is a number of remote radio heads (RRHs),
- RRH r comprises a group of antenna ports, and
- r=1, . . . , N_RRH;
- receiving the DL transmission;
- and
- decoding the information about the DL transmission;
- wherein the DL transmission is based on a precoding scheme and a diversity scheme,
- wherein the precoding scheme corresponds to applying an intra-RRH precoder component to antenna ports within an RRH, and
- wherein the diversity scheme corresponds to applying an inter-RRH diversity component to antenna ports across RRHs.
Dependencies are inferred from the claim text.