Communication method, apparatus, and system
AssigneeHuawei Technologies Co., Ltd.
InventorsXu Zhang, Jianguo Wang
Life of this patent
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Abstract
This application relates to the field of wireless communications, and in particular, to a communication method, an apparatus, and a system in a wireless communications system. In the method, a terminal device detects a physical downlink control channel PDCCH sent by a network device, the PDCCH carries indication information, and the indication information is used to indicate a type of system information; the terminal device determines, based on the indication information, a physical resource carrying the system information; and the terminal device receives the system information on the physical resource. Based on this method, a network device can flexibly indicate a type of system information that needs to be sent.
Claims24
A method, comprising:
- sending, by a network device, a physical downlink control channel (PDCCH) carrying downlink control information (DCI), wherein the DCI comprises indication information, and the indication information indicates that a type of system information is either system information type1 (SIB1) or a system information (SI) message other than SIB1;
- and
- sending, by the network device, the system information and a demodulation reference signal (DMRS) of the system information, wherein a frequency domain reference point of the DMRS is one of at least two frequency domain reference points that are used to determine DMRSs for the SIB1 and the SI message, and the frequency domain reference point used to determine the DMRS of the SIB1 and the frequency domain reference point used to determine the DMRS of the SI message are different.
An apparatus, comprising at least one processor and a memory, where the memory stores a computer program for execution by the at least one processor, wherein the computer program, when executed, cause the apparatus to perform operations comprising:
- sending, a physical downlink control channel (PDCCH) carrying downlink control information (DCI), wherein the DCI comprises indication information, and the indication information indicates that a type of system information is either system information type1 (SIB1) or a system information (SI) message other than SIB1;
- and
- sending, the system information and a demodulation reference signal (DMRS) of the system information, wherein a frequency domain reference point of the DMRS is one of at least two frequency domain reference points that are used to determine DMRSs for the SIB1 and the SI message, and the frequency domain reference point used to determine the DMRS of the SIB1 and the frequency domain reference point used to determine the DMRS of the SI message are different.
A non-transitory storage medium, configure to store program instructions;
- wherein, when executed by a computer, the instructions cause the computer to perform:
- sending, a physical downlink control channel (PDCCH) carrying downlink control information (DCI), wherein the DCI comprises indication information, and the indication information indicates that a type of system information is either system information type1 (SIB1) or a system information (SI) message other than SIB1;
- and
- sending, the system information and a demodulation reference signal (DMRS) of the system information, wherein a frequency domain reference point of the DMRS is one of at least two frequency domain reference points that are used to determine DMRSs for the SIB1 and the SI message, and the frequency domain reference point used to determine the DMRS of the SIB1 and the frequency domain reference point used to determine the DMRS of the SI message are different.
Dependencies are inferred from the claim text.