Channel estimation method, related device, and system
AssigneeHuawei Technologies Co., Ltd.
InventorsNing HE, Jiyu YE
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Abstract
A channel estimation method, a related device, and a system are described. A method for channel estimation may include determining when there is a damaged cell measurement reference signal (CRS) in a plurality of CRSs in target resource blocks (RBs), where the target RBs are RBs in compressed standard bandwidth. The method may also include performing, by a terminal, channel estimation by using an undamaged CRS instead of the damaged CRS in the plurality of CRSs. Based on the method, accuracy of channel estimation can be improved, and a problem of a relatively large error of a demodulation result of a data demodulation service performed based on the channel estimation result is resolved.
Claims16
A channel estimation method, comprising:
- determining when there is a damaged cell measurement reference signal (CRS) in a plurality of CRSs in target resource blocks (RB)s, wherein the target RBs are RBs in compressed standard bandwidth;
- and
- performing, by a terminal, channel estimation by using an undamaged CRS instead of the damaged CRS in the plurality of CRSs.
A resource scheduling method, comprising:
- compressing, by a base station, standard bandwidth of a secondary cell, to obtain compressed bandwidth;
- and
- sending, by the base station, a resource indication message to a terminal in a cross-carrier scheduling manner by using a physical downlink control channel (PDCCH) of a primary cell, to instruct the terminal to transmit data by using a resource block (RB) in the compressed bandwidth.
A terminal, wherein the terminal comprises a processor, a memory, and a transceiver, and the processor executes a program in the memory to perform operations comprising:
- determining when there is a damaged cell measurement reference signal (CRS) in a plurality of CRSs in target resource blocks RBs, wherein the target RBs are RBs in compressed standard bandwidth;
- and
- performing channel estimation by using the transceiver and an undamaged CRS instead of the damaged CRS in the plurality of CRSs.
A base station, wherein the base station comprises a processor, a memory, and a transceiver, and the processor executes a program in the memory to perform operations comprising:
- compressing standard bandwidth of a secondary cell, to obtain compressed bandwidth;
- and
- sending a resource indication message to a terminal in a cross-carrier scheduling manner by using the transceiver and a physical downlink control channel (PDCCH) of a primary cell, to instruct the terminal to transmit data by using a resource block (RB) in the compressed bandwidth.
Dependencies are inferred from the claim text.