Non-orthogonal design for channel state information reference signals for a 5G air interface or other next generation network interfaces
First Claim
1. A method, comprising:
- transmitting, by a network device comprising a processor, a reference signal associated with a mobile device to the mobile device, wherein the network device is one of network devices of a wireless network;
in response to the transmitting the reference signal, receiving, from the mobile device by the network device, a channel state reference signal;
in response to the receiving the channel state reference signal, filtering, by the network device, the channel state reference signal to reduce a signal interference associated with the channel state reference signal, resulting in a filtered channel state reference signal;
determining, by the network device, a downlink transmission parameter based on the filtered channel state reference signal;
multiplexing, by the network device, a first bandwidth associated with the wireless network with a second bandwidth associated with the filtered channel state reference signal;
in response to the multiplexing, transmitting, by the network device, the downlink transmission parameter via a downlink control channel of the wireless network for application to downlink transmissions of the wireless network; and
after the transmitting the downlink transmission parameter, transmitting, by the network device, data via a data traffic channel of the wireless network.
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Abstract
Channel state information reference signal transmission can be used to estimate channel state information. Although resources needed for channel state information reference signals can be small, when multiple bandwidths are deployed within the same orthogonal frequency division multiplexing bandwidth, estimating the channel state information can comprise a channel state information reference signal resource grid for every bandwidth. Therefore, time-frequency resources for channel state information reference signals can be high and occupy a lot of bandwidth, thereby reducing the number of resources for data transmission. Therefore, a non-orthogonal design for channel state information reference signals for a 5G air interface can mitigate bandwidth loss in a 5G network.
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Citations
20 Claims
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1. A method, comprising:
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transmitting, by a network device comprising a processor, a reference signal associated with a mobile device to the mobile device, wherein the network device is one of network devices of a wireless network; in response to the transmitting the reference signal, receiving, from the mobile device by the network device, a channel state reference signal; in response to the receiving the channel state reference signal, filtering, by the network device, the channel state reference signal to reduce a signal interference associated with the channel state reference signal, resulting in a filtered channel state reference signal; determining, by the network device, a downlink transmission parameter based on the filtered channel state reference signal; multiplexing, by the network device, a first bandwidth associated with the wireless network with a second bandwidth associated with the filtered channel state reference signal; in response to the multiplexing, transmitting, by the network device, the downlink transmission parameter via a downlink control channel of the wireless network for application to downlink transmissions of the wireless network; and after the transmitting the downlink transmission parameter, transmitting, by the network device, data via a data traffic channel of the wireless network. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. 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; transmitting a reference signal related to a mobile device to the mobile device via a network device of network devices of a wireless network; in response to the transmitting of the reference signal, receiving channel state data, via a feedback channel, from the mobile device via the network device; in response to the receiving the channel state data, filtering the channel state data to reduce a signal interference associated with the channel state data, resulting in filtered channel state data; determining a downlink transmission parameter based on the filtered channel state data; transmitting the downlink transmission parameter via a downlink control channel of the wireless network for application to downlink transmissions of the wireless network; and in response to the transmitting of the downlink transmission parameter, transmitting data via a data traffic channel of the wireless network. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. 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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sending a reference signal associated with a mobile device to the mobile device; in response to the sending the reference signal, receiving channel state data, via a feedback channel, from the mobile device; in response to the receiving the channel state data, filtering a signal associated with the channel state data to reduce an interference associated with the signal; based on the channel state data, determining a downlink transmission parameter; transmitting the downlink transmission parameter via a downlink control channel to be used for downlink transmissions via the downlink control channel; and in response to the transmitting the downlink transmission parameter, transmitting data via a data traffic channel used for data transmissions. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification