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US 12,120,667 B2Granted
Reference signal transmission method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsXianda Liu, Kunpeng Liu, Liuliu Ji
Life of this patent
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Abstract
This application provides a reference signal transmission method and an apparatus, used in a multipoint coordination transmission scenario. In one example method, a frequency domain resource that carries a target reference signal in a frequency domain resource or a time domain resource that is associated with each QCL assumption may be separately determined, and then the target reference signal carried on the frequency domain resource that is associated with the QCL assumption is separately received by using the corresponding QCL assumption.
Claims20
A reference signal transmission method, comprising:
- determining a frequency domain density K of a target reference signal based on a quantity MRB of frequency domain resources;
- determining, based on the frequency domain density K, at least one of a third frequency domain resource that carries the target reference signal in a first frequency domain resource, or a fourth frequency domain resource that carries the target reference signal in a second frequency domain resource, wherein
- the quantity MRB of frequency domain resources is greater than zero and less than NRB, NRB is a quantity of scheduled frequency domain resources, and the scheduled frequency domain resources comprise the first frequency domain resource and the second frequency domain resource;
- and
- the first frequency domain resource is associated with a first quasi co-location (QCL) assumption, and the second frequency domain resource is associated with a second QCL assumption;
- and
- receiving, by using the first QCL assumption, the target reference signal carried on the third frequency domain resource, or receiving, by using the second QCL assumption, the target reference signal carried on the fourth frequency domain resource.
4 more elements
A reference signal transmission method, comprising:
- determining a frequency domain density K of a target reference signal based on a quantity MRB of frequency domain resources;
- determining, based on the frequency domain density K, at least one of a third frequency domain resource that carries the target reference signal in a first frequency domain resource, or a fourth frequency domain resource that carries the target reference signal in a second frequency domain resource, wherein
- the quantity MRB of frequency domain resources is greater than zero and less than NRB, NRB is a quantity of scheduled frequency domain resources, and the scheduled frequency domain resources comprise the first frequency domain resource and the second frequency domain resource;
- and
- the first frequency domain resource is associated with a first quasi co-location (QCL) assumption, and the second frequency domain resource is associated with a second QCL assumption;
- and
- sending, by using the first QCL assumption, the target reference signal carried on the third frequency domain resource, or sending, by using the second QCL assumption, the target reference signal carried on the fourth frequency domain resource.
4 more elements
An apparatus, comprising:
- a receiver;
- at least one processor;
- and
- one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to cause the apparatus to:
- determine a frequency domain density K of a target reference signal based on a quantity MRB of frequency domain resources;
- determine based on the frequency domain density K, a third frequency domain resource that carries the target reference signal in a first frequency domain resource, or a fourth frequency domain resource that carries the target reference signal in a second frequency domain resource, wherein
- the quantity MRB of frequency domain resources is greater than zero and less than NRB, NRB is a quantity of scheduled frequency domain resources, and the scheduled frequency domain resources comprise the first frequency domain resource and the second frequency domain resource;
- and
- the first frequency domain resource is associated with a first quasi co-location (QCL) assumption, and the second frequency domain resource is associated with a second QCL assumption;
- and
- receive by using the first QCL assumption, the target reference signal carried on the third frequency domain resource, or receive, by using the second QCL assumption, the target reference signal carried on the fourth frequency domain resource.
8 more elements
Dependencies are inferred from the claim text.