Adaptive channel state information reference signal configurations for a 5G wireless communication network or other next generation network
First Claim
1. A method, comprising:
- based on a physical downlink shared channel location associated with a subcarrier spacing, adjusting, by a network device comprising a processor, a number of reference symbols associated with channel state data reference signals, resulting in an adjusted number of the reference symbols;
based on the adjusted number of the reference symbols, configuring, by the network device, a resource block associated with the subcarrier spacing, resulting in a resource block pattern, wherein the configuring comprises generating a time value for use with the adjusted number of the reference symbols, and wherein the resource block is allocated for a transmission of channel state data; and
sending, by the network device, the resource block pattern, the time value, and the adjusted number of the reference symbols to a mobile device.
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Abstract
In mixed numerology case, the performance of a physical downlink shared channel (PDSCH) can be improved by multiplexing PDSCH of one numerology with the channel state information reference signals (CSI-RS) of the other numerology and use of an advanced receiver. However, due to the interference from the PDSCH of the other numerology, the channel estimation for the underlying UE can be impacted if the CSI-RS is corrupted. An adaptive CSI-RS configuration can be deployed where the CSI-RS density is adapted based on the PDSCH transmission of the other numerology. Namely, based on the scheduling decision of the other numerology, the CSI-RS density can be changed. Thus, the impact on channel estimation can be minimized when the data channel of one numerology is multiplexed with the CSI-RS of the other numerology.
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Citations
20 Claims
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1. A method, comprising:
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based on a physical downlink shared channel location associated with a subcarrier spacing, adjusting, by a network device comprising a processor, a number of reference symbols associated with channel state data reference signals, resulting in an adjusted number of the reference symbols; based on the adjusted number of the reference symbols, configuring, by the network device, a resource block associated with the subcarrier spacing, resulting in a resource block pattern, wherein the configuring comprises generating a time value for use with the adjusted number of the reference symbols, and wherein the resource block is allocated for a transmission of channel state data; and sending, by the network device, the resource block pattern, the time value, and the adjusted number of the reference symbols to a mobile device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A network device, comprising:
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a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising; based on a physical downlink shared channel of a subcarrier spacing, adjusting variable reference symbols of channel state data reference signals, resulting in adjusted variable reference symbols of the channel state data reference signals; based on the adjusted variable reference symbols, configuring a resource block associated with the subcarrier spacing, resulting in a resource block pattern, wherein the resource block is allocated for a transmission of channel state data; and sending first data associated with the adjusted variable reference symbols of the channel state data reference signals and second data associated with the resource block pattern to a mobile device. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A non-transitory machine-readable storage medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising:
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based on a physical downlink shared channel location of a subcarrier spacing, increasing symbols of channel state data reference signals, resulting in additional symbols of the channel state data reference signals other than the symbols of the channel state data reference signals; in response to the increasing the symbols of the channel state data reference signals, configuring a resource block associated with the subcarrier spacing, resulting in a resource block pattern associated with a time value for use of the additional symbols, wherein the resource block is allocated for a transmission of channel state data; and transmitting data associated with the additional symbols of the channel state data reference signals, the resource block pattern, and the time value to a mobile device. - View Dependent Claims (18, 19, 20)
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Specification