Channel state information report for phase tracking reference signal port selection
AssigneeApple Inc.
InventorsYushu Zhang, Victor Sergeev, Guotong Wang, Alexei Davydov, Gang Xiong
Life of this patent
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Abstract
Described is an apparatus of a User Equipment (UE) operable to communicate with an Evolved Node-B (eNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a Downlink (DL) transmission carrying one or more Phase Tracking Reference Signal (PT-RSes). The second circuitry may be operable to generate an Uplink (UL) transmission carrying a Layer Indicator (LI) based at least on a number of PT-RS Antenna Ports (APs) associated with the PT-RSes.
Claims22
A User Equipment (UE) operable to communicate with a base station on a wireless network, comprising:
- one or more processors to:
- process a Downlink (DL) transmission carrying one or more Phase Tracking Reference Signals (PT-RSes);
- and
- generate an Uplink (UL) transmission carrying a Layer Indicator (LI) based at least on a number of PT-RS Antenna Ports (APs) associated with the PT-RSes carried in the processed DL transmission, wherein a PT-RS is associated with an Antenna Port (AP) of a Demodulation Reference Signal (DMRS) AP group and used to compensate for a phase shift caused by phase noise;
- and
- an interface for receiving the DL transmission from a receiving circuitry and for sending the UL transmission to a transmission circuitry.
A non-transitory computer-readable medium having machine executable instructions that, when executed, cause one or more processors of a User Equipment (UE) operable to communicate with a base station on a wireless network to perform an operation comprising:
- process a Downlink (DL) transmission carrying one or more Phase Tracking Reference Signals (PT-RSes);
- and
- generate an Uplink (UL) transmission carrying a Layer Indicator (LI) based at least on a number of PT-RS Antenna Ports (APs) associated with the PT-RSes carried in the processed DL transmission, wherein a PT-RS is associated with an Antenna Port (AP) of a Demodulation Reference Signal (DMRS) AP group and used to compensate for a phase shift caused by phase noise.
A User Equipment (UE) device comprising a memory, one or more antennas, a wireless interface for allowing the UE device to communicate with another device, and one or more processors to:
- process a Downlink (DL) transmission carrying one or more Phase Tracking Reference Signals (PT-RSes);
- and
- generate an Uplink (UL) transmission carrying a Layer Indicator (LI) based at least on a number of PT-RS Antenna Ports (APs) associated with the PT-RSes carried in the processed DL transmission, wherein a PT-RS is associated with an Antenna Port (AP) of a Demodulation Reference Signal (DMRS) AP group and used to compensate for a phase shift caused by phase noise;
- and
- an interface for receiving the DL transmission from a receiving circuitry and for sending the UL transmission to a transmission circuitry.
Dependencies are inferred from the claim text.