76results about How to "Reduce the number of blind inspections" patented technology

The invention discloses a method for transmitting downlink control signaling of a LTE-Advanced system and aims to effectively reduce the frequency of a UE blind test. The method comprises the following steps: carrying out first cascade connection of CRC check codes of special DCI and the downlink control signaling; masking the CRC check codes by using RNTI of the UE to obtain a cascade connection mask sequence; coding indication information of the special DCI to obtain a special DCI indication information coding sequence; carrying out coding and speed matching of the cascade connection mask sequence to obtain a cascade connection mask coding sequence; carrying out second cascade connection and reordering of the special DCI indication information coding sequence and the cascade connection mask coding sequence to obtain an information block corresponding to a PDCCH of the UE; and processing and mapping the information blocks of a plurality of PDCCHs of a subframe to resource elements for transmitting. The technical proposal reduces the frequency of the UE blind test, the implementation complexity of UE and the probability of CRC false detection.

The invention provides a method for sending and detecting downlink control information, a base station carries the downlink control information in a physical downlink control signal channel, the physical downlink control signal channel is sent through a component carrier, wherein the base station carries the first type of downlink control information on the main component carrier and carries the third type of downlink control information on the first component carrier, the first type of downlink control information carries uplink and / or downlink scheduling information and / or uplink power control information of the component carrier in which the first type of downlink control information is located, the second type of downlink control information carries uplink and / or downlink scheduling information of one or a plurality of component carriers, and the third type of downlink control information carries indication information of the second type of downlink control information. A terminal detects the first type of downlink control information on the main component carrier and detects the third type of downlink control information on the first component carrier. The method has better scheduling flexibility, compatibility and error code performance, lower blind detection times and lower signaling cost.

The invention discloses a method and a device for indicating and determining a downlink control information format. The method comprises the following steps of when the bit length of the downlink control information within a short transmission time interval is the same as the bit length of the downlink control information within a traditional subframe, carrying an indication in the information field, and indicating that the downlink control information is the downlink control information of the traditional subframe or the downlink control information of the short transmission time interval; after receiving the downlink control information, determining whether the downlink control information is the downlink control information of the traditional subframe or the downlink control informationof the short transmission time interval according to the indication. By adopting the technical scheme of the invention, the downlink control information of the traditional subframe and the downlink control information of the short transmission time interval, which are the same in size, can be distinguished from each other by the terminal. Therefore, the times of blind detection for the terminal during the transmission of the short downlink control information in a traditional control area can be reduced.

The invention provides an information detection method, communication equipment and a computer readable storage medium. The information detection method comprises: a network device determines at leastone maximum detection number, and each maximum detection number is used for determining the maximum number of downlink control information DCI that can be detected by a terminal when the terminal performs physical downlink control channel PDCCH blind detection in a specified time-frequency resource range; and the network device sends the at least one maximum detection number to the terminal, so that the terminal stops the PDCCH blind detection according to the at least one maximum detection number. According to the information detection method provided by the invention, the problem of relatively high power consumption caused by continuous blind detection process of the terminal in the prior art can be solved to a certain extent.

The embodiment of the invention provides a method for determining whether to continuously detect a downlink control channel, a terminal and a base station so as to solve the technical problem how to determine whether to continuously carry out blind test according to a specified DCI (Downlink Control Information) format after DCI of the specified DCI format is successfully received and the technical problem of no definite scheme in the prior art. The method for determining whether to continuously detect the downlink control channel comprises the steps that: the terminal acquires first DCI; andthe terminal determines whether to continuously detect the downlink control channel on the basis of the first DCI.

The embodiment of the invention discloses a blind detection method, a system information sending method and a device. The blind detection method comprises the steps of initiating random access after aterminal device detects a downlink working carrier of a cell; receiving system information and configuration indication information of the downlink working carrier on a frequency domain channel of the downlink working carrier after the random access is successful, wherein the configuration indication information appoints a business type corresponding to the system information; and acquiring configuration information of the frequency domain channel of the downlink working carrier from the system information, and carrying out blind detection according to the configuration information and the configuration indication information. The business type corresponding to the system information is informed to the terminal device through the configuration indication information, so the blind detection times of the terminal device can be reduced, the delay can reduced, and the methods and the device are applicable to NR (New Radio) comprising various business types.

The embodiment of the invention discloses a PDCCH (Physical Downlink Control Channel) sending and receiving methods and related equipment. The PDCCH sending method comprises the steps of: generating acurrent sub-frame comprising a PDCCH, wherein the PDCCH comprises a common control resource set and at least one user-level control resource set, the common control resource set is used for bearing user group control information, the user group control information is used for indicating each user equipment included in a user group and a time-frequency resource position of the user-level control resource set corresponding to the user group, and the user-level control resource set is used for bearing downlink control information of the corresponding user equipment in the user group; and sendingthe current sub-frame to the user equipment. By adopting the PDCCH sending and receiving methods and the related equipment, which are disclosed by the embodiment of the invention, a blind test rangecan be reduced so as to reduce blind test times and reduce the system delay.

The application discloses a data receiving method that can be applied to Internet of Vehicles, for example, a V2X, LTE-V, V2V and the like. A first terminal device can receive first control information from a second terminal device, then receive second control information from the second terminal device according to the first control information, and further receive data sent by the second terminal device according to the first control information and the second control information. Therefore, the second control information and the data can be received by detecting the first control information with fewer blind detection times, so that the receiving efficiency of the second control information and the data is improved.

The embodiment of the invention discloses a processing method, a processing device and a processing system for a PDCCH (Physical Downlink Control Channel) in a multi-carrier system, which can obtain good effects on the aspects of controlling signaling expenses, reducing the blind detection times of UE (User Equipment), reducing PDCCH loss state and the like. The method provided by the embodiment of the invention comprises the steps of distributing PDCCH of the UE onto all or part of downlink carriers corresponding to the uplink carriers of the UE according to the uplink carrier configuration information of the UE, selecting the uplink carriers of the UE corresponding to the downlink carriers distributed by the PDCCH through the UE so as to conduct ACK (Acknowledgement Character) / NACK (Negative Acknowledgement) feedback; and adopting combined encoding PDCCH with dynamic length according to the maximum parts of control information contained by the combined encoding PDCCH signaling of the UE, and conducting the blind detection of the combined encoding PDCCH signaling by the UE according to contained maximum parts of control information.

The invention relates to a PDCCH blind detection method for SNR mean feedback and CCEs energy judgment in 5G, and belongs to the technical field of communication. The method comprises the following steps: (1) an aggregation level priority selection method based on SNR mean value feedback: according to a reported CQI period T and a reported CQI value, calculating the mean value of SNRs of the firstn times, and corresponding to different aggregation levels; and under the condition that the detection of the first aggregation level fails, determining whether the aggregation level is searched in an increasing or decreasing manner; and (2) a CCE decision method based on CCEs candidate set energy: entering a PDCCH under a corresponding aggregation level according to the method in the step (1), and deciding whether to bear DCI (Downlink Control Information) messages required by UE; and when the detection fails or no DCI is judged, performing the same judgment on the energy statistical maximumvalues calculated twice and the energy of the next CCE candidate set until the blind detection succeeds or all the judgment under the aggregation level is finished. The method is stable in performance, low in calculation complexity and high in blind detection efficiency.

The invention provides a method and a device for indicating the monitoring of the uplink preemption information. The method comprises the following steps: a base station reserves URLLC time-frequencydomain resources for uplink URLLC services in each time slot of an uplink frequency band, and allocates the reserved URLLC time-frequency domain resources to uplink eMBB service users; the base station sends the downlink signaling carrying the monitoring indication bit to an eMBB service user, wherein the monitoring indication bit is used for indicating whether an eMBB service user needs to monitor uplink preemption information; and before sending the eMBB data, the eMBB service user determines whether to monitor uplink preemption information according to the monitoring indication bit. According to the invention, the blind detection frequency and power consumption of the eMBB service user in the whole system can be reduced, the resource utilization rate is effectively improved, and the spectrum efficiency and the energy efficiency are both considered.