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US 11,456,906 B2Granted
Reference signal configurations for doppler support in new radio design
AssigneeQUALCOMM Incorporated
InventorsRenqiu Wang, Hao Xu, Wanshi Chen, Peter Gaal, Tingfang Ji, John Edward Smee
Life of this patent
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Abstract
Certain aspects of the present disclosure provide techniques for transmitting and processing reference signals, such as DMRS, that may account for mobility characteristics (e.g., that relate to a Doppler measurement) of a wireless node (e.g., a UE), such as Doppler measurements indicating how fast such a device is moving.
Claims26
A method of wireless communication by a base station, comprising:
- allocating a first set of resources to at least two reference signal (RS) symbols in a subframe for a first user equipment (UE), wherein:
- for downlink RS transmissions, allocating at least the first set of resources comprises allocating at least a portion of the first set of resources to at least a half-symbol located in a guard period of the subframe, and
- for uplink RS transmissions, allocating at least the first set of resources comprises allocating at least a portion of the first set of resources to at least a half-symbol located in a common burst region of the subframe;
- allocating a second set of resources to fewer RS symbols than the first set of resources in the subframe for a second UE, wherein a location of the at least two RS symbols in the subframe and a location of the fewer RS symbols in the subframe is symmetric between downlink RS transmissions and RS uplink transmissions;
- communicating with the first UE based on RSs transmitted using the first set of resources;
- and
- communicating with the second UE based on RSs transmitted using the second set of resources.
4 more elements
A method of wireless communication by a first user equipment (UE), comprising:
- determining at least a first set of resources allocated to at least two reference signal (RS) symbols in a subframe for the first UE, wherein:
- for downlink RS transmissions, at least a portion of the first set of resources are allocated to at least a half-symbol located in a guard period of the subframe,
- for uplink RS transmissions, at least a portion of the first set of resources are allocated to at least a half-symbol located in a common burst region of the subframe,
- a second set of resources are allocated to fewer RS symbols than the first set of resources in the subframe for a second UE, and
- a location of the at least two RS symbols in the subframe and a location of the fewer RS symbols in the subframe is symmetric between downlink RS transmissions and RS uplink transmissions;
- and
- communicating with a base station based on RSs transmitted using the first set of resources.
4 more elements
An apparatus for wireless communication by a base station, comprising:
- at least one processor configured to:
- allocate a first set of resources to at least two reference signal (RS) symbols in a subframe for a first UE, wherein:
- for downlink RS transmissions, the at least one processor is configured to allocate at least a portion of the first set of resources to at least a half-symbol located in a guard period of the subframe, and
- for uplink RS transmissions, the at least one processor is configured to allocate at least a portion of the first set of resources to at least a half-symbol located in a common burst region of the subframe;
- allocate a second set of resources to fewer RS symbols than the first set of resources in the subframe for a second UE, wherein a location of the at least two RS symbols in the subframe and a location of the fewer RS symbols in the subframe is symmetric between downlink RS transmissions and RS uplink transmissions;
- communicate with the first UE based on RSs transmitted using the first set of resources;
- and
- communicate with the second UE based on RSs transmitted using the second set of resources;
- and
- a memory coupled with the at least one processor.
7 more elements
An apparatus for wireless communication by a first user equipment (UE), comprising:
- at least one processor configured to:
- determine at least a first set of resources allocated to at least two reference signal (RS) symbols in a subframe for the first UE, wherein:
- for downlink RS transmissions, at least a portion of the first set of resources are allocated to at least a half-symbol located in a guard period of the subframe,
- for uplink RS transmissions, at least a portion of the first set of resources are allocated to at least a half-symbol located in a common burst region of the subframe,
- a second set of resources are allocated to fewer RS symbols than the first set of resources in the subframe for a second UE, and
- a location of the at least two RS symbols in the subframe and a location of the fewer RS symbols in the subframe is symmetric between downlink RS transmissions and RS uplink transmissions;
- and
- communicate with a base station based on RSs transmitted using the first set of resources;
- and
- a memory coupled with the at least one processor.
7 more elements
Dependencies are inferred from the claim text.