摘要:
Disclosed in the present invention are an enhanced channel state information reference signal (CSI-RS) transmission method, a feedback information sending method and apparatus, and a device and a medium, which are used for solving the problems of the sending power of a network side and the feedback overhead of a terminal side being relatively high when the number of beams to be sent is less than the total number of configured CSI-RS antenna ports. In the embodiments of the present disclosure, when the number P of beams to be sent is less than the total number P tot of configured CSI-RS antenna ports, a network side can select, from the configured P tot CSI-RS antenna ports, some CSI-RS antenna ports for sending a beamforming CSI-RS to a terminal side. Compared with a network side needing to send a beamforming CSI-RS on the basis of each configured CSI-RS antenna port in the related art, the sending power of a network side can be effectively reduced; moreover, the feedback overhead of a terminal side can also be effectively reduced.
摘要:
Provided are a method and an apparatus for integrating wireless communication and wireless sensing. The method includes: transmitting, by a communication device, a wireless sensing signal in a target slot position related to a switching point between signal transmission and signal reception of a wireless communication signal; and receiving an echo signal corresponding to the wireless sensing signal in the case that a signal transmission slot of the wireless communication signal is ended.
摘要:
Disclosed in the present application are a method for transmission configuration indication (TCI) of a DMRS port and a related apparatus, and a storage medium. In the method, a network side device configures at least two DMRS ports for a terminal according to the correspondence between required TCI states and DMRS CDM groups, the at least two DMRS ports belonging to different CDM groups, and the different CDM groups comprising different numbers of DMRS ports; and sends DCI to the terminal, the DCI comprising a DMRS port index value, the DMRS port index value being an index value pre-defined in a DMRS port allocation table, and the DMRS port index value being used for indicating a DMRS port set allocated to the terminal, the number of CDM groups without data, and the number of preamble DMRS symbols, and being used for indicating the correspondence.
摘要:
The present application provides a transmission failure recovery method and apparatus, a device, and a storage medium. A reference signal corresponding to a group of control resource sets CORESETs or a transmission failure reference signal BFD RS set is determined; and a transmission failure recovery request is transmitted to a network device if the reference signal meets a predefined condition, where the transmission failure recovery request is used for indicating the network device to perform transmission failure recovery on the group of CORESETs. Since network device is triggered to enable a transmission failure recovery mechanism on a group of CORESETs when a reference signal corresponding to the group of CORESETs meets a predefined condition, a transmission delay for data on a transmission point with failed beam transmission is reduced, thereby improving communication quality.
摘要:
Provided in embodiments of the present invention are a method and device for transmitting control information. In an embodiment of the present invention, the method comprises: a base station determining to repeatedly transmit DCI; and the base station repeatedly causing the DCI to be carried on at least two PDCCHs used for repeated DCI transmission, and transmitting same. When a terminal is unable to successfully detect some of PDCCHs for repeated DCI transmission due to a blockage or interference, the terminal can still perform detection on the remaining PDCCHs to obtain DCI, thereby enhancing the reliability of DCI transmission.
摘要:
A transmission mode indication method and device, a base station, a terminal and a storage medium are provided. The method includes: transmitting signaling to a UE, so that the UE determines a transmission mode between the UE and a base station according to the signaling, the signaling carrying indication information of a transmission configuration indicator (TCI) state, indication information of a redundancy version (RV), indication information of a demodulation reference signal (DMRS) port, and indication information indicating whether the number of retransmission is carried; or, besides the described indication information, the signaling also carrying indication information of a transmission mode. In the embodiments of the present application, indication information is carried in signaling and is used for indicating a specific transmission mode, so that dynamic switching between different transmission modes can be achieved, and the system performance, the reliability and the resource utilization rate are better improved.
摘要:
A method for receiving information, a method for sending information, a terminal and a network device are provided. The method for receiving information includes: receiving indication information, where the indication information is used for indicating at least one transmission configuration indicator TCI state of a demodulation reference signal DMRS port on one or more resources allocated to the terminal; determining a correspondence between the at least one TCI state on the one or more resources and a code division multiplexing CDM group to which the DMRS port belongs; and receiving information according to the correspondence between the TCI state on the one or more resources and the CDM group to which the DMRS port belongs.
摘要:
A method and a device for reporting channel quality information are provided by the present invention, the method comprising that: measuring, by a user equipment (UE), Channel State Information-Reference Signal (CSI-RS) according to the configuration information of the CSI-RS, to acquire a downlink channel transport matrix (101); determining, by the UE, Channel Quality Indicator (CQI) of a frequency domain reporting unit according to the number of CSI-RS ports and the corresponding transmission scheme of the Physical Downlink Shared Channel (PDSCH) used when determining the CQI, and the downlink channel transport matrix acquired by measurement (102); reporting, by the UE, the determined CQI to network side (103). The present invention can realize measurement and reporting of CSI-RS-based channel quality information on the basis of non-Precoding Matrix Indicator (PMI) feedback transmissions.
摘要:
Disclosed in the present disclosure are a beam quality monitoring method and apparatus, and a device and a medium. The method comprises: a terminal device selecting at least one CORESET as a CORESET to be monitored, which comprises a CORESET in an SFN transmission mode; according to an associated CSI RS in an active TCI state in the CORESET to be monitored, determining BFD RSs to be monitored; and performing beam quality monitoring on the basis of each BFD RS to be monitored. In the present disclosure, the beam quality of at least one CORESET is monitored, and the monitored CORESET comprises a CORESET in an SFN transmission mode. CSI RSs of two transmission points are associated in an active TCI state in the CORESET in the SFN transmission mode, and therefore by means of the present disclosure, the beam quality of the two transmission points can be monitored. The problem in the related art of it being impossible to accurately reflect the beam quality of a PDCCH is solved.
摘要:
The present disclosure provides an indication method, including: determining first transmission resources related to a transmission channel for a large-scale channel parameter or a group of large-scale channel parameters, and transmitting configuration information about the first transmission resources to a terminal device via first signaling, the first transmission resources being transmission resources for K downlink reference signals, K being a positive integer; and selecting second transmission resources from the first transmission resources in accordance with a transmission parameter used by the transmission channel, and transmitting indication information about the second transmission resources to the terminal device via second signaling, the second transmission resources being transmission resources for L downlink reference signals, L being a positive integer, and K being greater than or equal to L.