Path loss determining method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsQiqi Mao, Shitong Yuan, Xiaoyong Tang, Huang Huang
Life of this patent
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Abstract
A path loss determining method and apparatus are provided to satisfy a path loss measurement requirement when there are different transmit powers. The method includes: measuring receive power of a signal sent by a network device; determining transmit power of the signal based on pre-configuration information, where the pre-configuration information is used to indicate correspondences between a plurality of signals and transmit powers, transmit powers of some or all of the plurality of signals are different, and the signal is one of the plurality of signals; and determining a path loss based on the receive power of the signal and the transmit power of the signal.
Claims15
A path loss determining method, applied to a path loss determining apparatus, the method comprising:
- measuring receive power of a channel state information-reference signal (CSI-RS) sent by a network device;
- receiving pre-configuration information sent by the network device,
- wherein the pre-configuration information comprises transmit power of a synchronization signal (SS), and further comprises an association between a plurality of CSI-RSs and a plurality of transmit power offset values,
- wherein the association relates each of one or more groups comprising the plurality of CSI-RSs and a transmit power offset value of the plurality of transmit power offset values, and
- wherein each of the transmit power offset values is an offset value relative to a transmit power reference value that is a transmit power of one of the CSI-RSs in the one or more groups;
- determining one of the transmit power offset values from the pre-configuration information;
- determining a transmit power of the received CSI-RS based on the determined transmit power offset value and the transmit power of the SS;
- and
- determining a path loss based on the receive power of the CSI-RS and the determined transmit power of the CSI-RS.
A path loss determining apparatus comprising:
- a processor configured to measure receive power of a channel state information-reference signal (CSI-RS) sent by a network device;
- a receiver configured to cooperate with the processor to receive pre-configuration information sent by the network device,
- wherein the pre-configuration information comprises transmit power of a synchronization signal (SS), and further comprises an association between a plurality of CSI-RSs and a plurality of transmit power offset values,
- wherein the association relates each of one or more groups comprising the plurality of CSI-RSs and a transmit power offset value of the plurality of transmit power offset values, and
- wherein each of the transmit power offset values is an offset value relative to a transmit power reference value that is a transmit power of one of the CSI-RSs in the one or more groups;
- and
- the processor is further configured to:
- determine one of the transmit power offset values from the pre-configuration information,
- determine a transmit power of the received CSI-RS based on the determined transmit power offset value and the transmit power of the SS, and
- determine a path loss based on the receive power of the CSI-RS and the determined transmit power of the CSI-RS.
A non-transitory computer-readable storage medium, storing a computer-executable program, which when executed by a processor, causes the processor to implement operations including:
- measuring receive power of a channel state information-reference signal (CSI-RS) sent by a network device;
- receiving pre-configuration information sent by the network device,
- wherein the pre-configuration information comprises transmit power of a synchronization signal (SS), and further comprises an association between a plurality of CSI-RSs and a plurality of transmit power offset values,
- wherein the association relates each of one or more groups comprising the plurality of CSI-RSs and a transmit power offset value of the plurality of transmit power offset values, and
- wherein each of the transmit power offset values is an offset value relative to a transmit power reference value that is a transmit power of one of the CSI-RSs in the one or more groups;
- determining one of the transmit power offset values from the pre-configuration information;
- determining transmit power of the received CSI-RS based on the determined transmit power offset value and the transmit power of the SS;
- and
- determining a path loss based on the receive power of the CSI-RS and the determined transmit power of the CSI-RS.
Dependencies are inferred from the claim text.