63results about How to "Reduce the complexity of blind detection" patented technology

The invention discloses a system and a method for implementation of control channel resource allocation. A pre-coded control channel can be mapped from a first OFDM (orthogonal frequency division multiplexing) code of an ABS (almost blank subframe) when no scheduling R8 / R9 / R10 UE (user equipment) is in the ABS. The control channel resource allocation technology implemented by the system and the method can be applied to control channel resource allocation and indication optimization of LTER10 subsequent versions. Resource utilization efficiency is improved and control channel covering power is improved by making full use of the UE bearing no information in the ABS, and UE energy conservation and reduction of control channel blind test complexity for the UE are both benefited.

The invention discloses an information transmission method, a device and a system. According to the embodiment of the invention, the information transmission method comprises the following steps: transmitting downstream control information to one or more second communication nodes by a first communication node in a downstream control domain of a first time unit; transmitting downstream data to one or more second communication nodes by the first communication node according to the downstream information, or / and receiving upstream data transmitted from one or more second communication nodes, wherein the first time unit comprises the downstream control domain and a data domain; and a preset resource length is set between the start position of the downstream control domain and the start position of the first time unit. By adopting the embodiment of the invention, the problems that in the prior art in high-frequency honeycomb communication, since the number of radio frequency links is limited, all downstream wave beams cannot be transmitted simultaneously on same symbols in a hybrid wave beam transmission mode, and a receiving terminal is relatively high in detection complexity, are solved.

The invention discloses a data transmission method and device in V2X. The method includes: obtaining a configuration mode of a resource pool; selecting a resource for transmitting a V2X message according to the acquired configuration mode of the resource pool, the size of the received V2X message and a time delay requirement. The method and device support a case that SA and data use resources withadjacent frequencies and have low SA blind detection complexity.

The invention provides a DCI transmission method, UE, and a network side device. The method comprises the following steps: the UE receives and parses first partial control information contained in theDCI by using a blind detection PDCCH, wherein the first partial control information comprises a fixed information domain, and the information domain comprises receiving information of second partialcontrol information contained in the DCI; and the UE receives and parses the second partial control information according to the receiving information. By adoption of the embodiment of the invention,the blind detection complexity of the UE receiving the DCI can be reduced, and the power consumption of the UE can be reduced.

The invention provides an information transmission method and a communication device. The method comprises the following steps: determining a corresponding relationship between a first aggregation level AL set associated with a plurality of first PDCCH candidates and a second AL set associated with a plurality of second PDCCH candidates, wherein the corresponding relationship is a corresponding relationship between at least one first AL in the first AL set and at least one second AL in the second AL set; and detecting at least one first PDCCH candidate in the plurality of first PDCCH candidates and / or at least one second PDCCH candidate in the plurality of second PDCCH candidates according to the corresponding relationship. When a plurality of DCIs are detected, the AL corresponding to theDCI to be detected can be determined according to the corresponding relationship between the ALs corresponding to the plurality of DCIs, and the DCI is detected in the PDCCH candidates correspondingto the AL, so that the DCI blind detection complexity is reduced.

The invention provides a method for configuring physical downlink control channel (PDCCH), a base station and user equipment (UE). The base station configures a PDCCH on each subframe of each member carrier in aggregated carriers by adopting the pre-established scheduling relationship, wherein the scheduling relationship ensures at least one PDCCH is not on the same member carrier with the resources scheduled by the PDCCH. The base station of the invention can allocate the member carrier suitable for data transmission for the UE according the actual demand and configure the resource scheduling information of the member carrier in the PDCCH monitored by the UE, thus having higher scheduling flexibility. Only one PDCCH is configured on one member carrier, thus dispensing with changing the format of original PDCCH signaling, maximally reusing design of the long term evolution (LTE) system and reducing the blind detection complexity of the UE.

The invention discloses a polarization code-based low-complexity PDCCH (Physical Downlink Control Channel) channel blind detection method, which belongs to the field of communication. Firstly, a candidate DCI (Downlink Control Information) format which needs to be detected is determined; PDCCH candidates are then extracted one by one for decoding, d decoding results are obtained, and d path metricvalues CM are calculated at the same time; a decoding result which is checked to be correct is screened from the d decoding results; when the number of results is greater than 1, the information length corresponding to the smallest metric value is selected as the result for the current candidate PDCCH; when all PDCCH candidates do not have an information sequence conforming to CRC check, the information length corresponding to the smallest metric value CM is selected as the DCI information length actually carried by the current candidate PDCCH; and finally, CASCL decoding is carried out according to the information digit number carried in the current candidate PDCCH, an RNTI is descrambled for checking the CRC, if the CASCL decoding succeeds in checking, the correct result of the currentcandidate PDCCH is found out, or otherwise, a next candidate PDCCH is selected until the search is completed. The complexity of blind detection is reduced, and the practicability is good.

The invention provides a channel transmission method and device for V2X communication. The method comprises the following steps: selecting a channel for transmitting control information and an information format according to the configuration of a channel resource pool of V2X equipment, a transmission mode and a control channel transmission rule; and performing control channel transmission on theV2X equipment based on the selected channel and information format. According to the channel transmission method and device, the channel for transmitting the control information and the information format are selected based on resource pool configuration parameters and a transmission demand, so that the utilization efficiency of system resources is increased and the complexity of blind detection is lowered in the coexistence of same-sub-frame transmission and different-sub-frame transmission for SA (Scheduling Assignment) and related data thereof.

The invention discloses a downlink control channel detection method, a terminal and a base station. The method comprises the following steps: obtaining first auxiliary information and second auxiliaryinformation sent by the base station, wherein the first auxiliary information is used for indicating a time domain duration of a control resource set where a downlink control channel allocated by thebase station is located, and the second auxiliary information is used for indicating a resource mapping manner from a resource element group REG of the control resource set to a control channel element CCE; and performing blind detection on the downlink control channel according to the first auxiliary information and the second auxiliary information. The terminal disclosed by the invention determines a blind detection range of the downlink control channel in combination with the first auxiliary information that indicates the time domain duration of the control resource set where the downlinkcontrol channel is located and the second auxiliary information that indicates the resource mapping manner from the resource element group REG of the control resource set to the control channel element CCE, and performs the blind detection on the corresponding control resource set, in order to reduce the blind detection complexity of the downlink control channel by the terminal.

The invention discloses a downlink control information detection method, a downlink control information transmission method, a terminal and a network device. The downlink control information detectionmethod comprises the following steps: obtaining indication information used for indicating a candidate downlink control information DCI load size; and performing blind detection on a physical downlink control channel PDCCH according to the candidate DCI load size indicated by the indication information so as to determine the DCI transmitted in the PDCCH. The terminal disclosed by the invention obtains the indication information used for indicating the candidate DCI load size, and performs the blind detection on the PDCCH according to the candidate DCI load size, so that the blind detection complexity can be reduced, and the blind detection times can be reduced.

The invention provides an information transmission method, an information monitoring method, a device, a base station, a terminal and a storage medium. The method comprises the following steps: determining N bandwidth parts in an activated state; transmitting a channel and / or a signal over the activated N bandwidth portions; and / or determining D control channel resource groups, monitoring the control information in the D control channel resource groups, and transmitting the channel and / or the signal according to the monitored control information. In this way, when each TRP and / or terminal performs information transmission in this way, multiple TRPs can be effectively supported to provide effective service for one terminal under a beam mechanism.

The embodiment of the invention provides a control channel detection method and device, an information element transmission method and device, equipment and a medium. Whether control channel information included in H (H is greater than or equal to 2) first-class control channel elements is the same or not can be determined according to signaling information and / or a preset rule; therefore, the control channel can be monitored according to the determined result, so that the communication node equipment can repeatedly send the same control channel information through a plurality of candidate control channels, the robustness of the PDCCH can be improved, and the transmission coverage distance of the PDCCH is increased.

The embodiment of the invention discloses a control channel transmission indication, a detection method, a base station and user equipment. The control channel transmission indication method comprisesthe steps of acquiring a sending parameter of a control channel of a current short transmission time interval sTTI; forming indication information sent by the control channel according to the sendingparameter, wherein the indication information comprises a detection parameter used for performing detecting the control channel; and sending the indication information on a predetermined time frequency resource position of the sTTI. Therefore, the base station not only can send scheduling information via the control channel, but also can send the indication information; the user equipment can acquire the indication information before detecting scheduling information of the control channel; the indication information is determined according to the sending parameter of the control channel, so that the hesitancy degree of blind detection of the user equipment can be reduced, and thus the complexity of blind detection is reduced, the blind detection efficiency of the control channel can be enhanced, and the power consumption of blind detection is reduced.

The invention provides a channel state information measurement method and device. The channel state information measurement method comprises the steps that first equipment sends N reference signal ports to second equipment on a specified signal resource according to a specified sending mode, wherein the reference signal ports are used by the second equipment to measure channel state information between the first equipment and the second equipment, and N is a positive integer; and the first equipment receives the channel state information fed back by the second equipment. According to the invention, a problem of measurement for the channel state information in the related art is solved.

The present disclosure relates to a channel resource determination method and device, and a storage medium. The method comprises: a second user equipment selecting one PSFCH resource in a specified physical side chain feedback channel (PSFCH) resource set, the PSFCH resource set comprising one or more PSFCH resources; and the second user equipment sending side chain feedback control information (SFCI) according to the selected PSFCH resource. By adopting the method and the device, the probability of resource collision can be effectively reduced, so that the number of times of hybrid automaticrepeat request (HARQ) is reduced, and the HARQ efficiency is improved.

The invention discloses a side link transmission method, a terminal and a computer readable storage medium. The method comprises the following steps: acquiring a time-frequency resource for transmission on a side link; and taking a preset position on the time-frequency resource as a time domain sending position of side link control information, and sending the side link control information on theside link. By applying the scheme, the receiving terminal can determine the specific sending position of the side link control information on the time-frequency resource, the blind detection complexity of the receiving terminal can be reduced, the receiving efficiency can be improved, and the power consumption of the receiving terminal can be reduced.

The invention provides a method and a device for transmitting downlink control information. The method comprises the following steps: network side equipment sends first configuration information to terminal side equipment, wherein the first configuration information is used for configuring a search space, the terminal side equipment receives the first configuration information sent by the networkside equipment and detects first DCI and second DCI in the search space according to the first configuration information, and the first DCI comprises a first field and a truncated second field; or thetruncated first field and the truncated second field; or the truncated first field and the truncated second field; wherein the first field indicates resource allocation, the second field indicates frequency hopping offset, and the bit number of the first DCI is the same as the bit number of the second DCI. According to the method and the device for transmitting the downlink control information inthe embodiment of the invention, the blind detection complexity of the DCI by the terminal side equipment can be reduced.

Provided are a PDCCH determination method and device, a synchronization signal detection and sending method and device, a storage medium, a terminal and a base station. The PDCCH determination methodcomprises the steps: detecting a synchronization signal sent by a network after awakening to re-implement network synchronization, the synchronization signal having a preset association relationship with a PDCCH monitoring opportunity; and determining the PDCCH monitoring time according to the preset association relationship, and detecting the PDCCH at the PDCCH monitoring time. Through the technical scheme of the invention, the UE can be effectively prevented from blindly detecting the PDCCH, and the power consumption is saved, and the blind detection complexity is reduced, and the user experience is improved.

The invention provides a control information transmission method and device, and the method is used for a control information transmitting end and comprises the steps: enabling a first part of controlinformation to occupy a first time-frequency resource through a first physical layer channel, and transmitting the first part of control information to a control information receiving end; sending first indication information to the control information receiving end, wherein the first indication information being used for indicating the size of a second time-frequency resource, the second time-frequency resource being a time-frequency resource occupied by transmission of a second part of control information; and enabling the second part of control information to occupy the second time-frequency resource through a second physical layer channel and to be sent to the control information receiving end. Therefore, the control information receiving end can receive the second part of control information according to the indication of the control information transmitting end without blind detection, the blind detection complexity is reduced, and the communication quality of direct connectioncommunication is improved.

The invention provides a method and a device for terminating uplink continuous repeated transmission, a base station and a piece of user equipment. The method includes the following steps: receiving the monitoring period of a first type of termination conditions and the monitoring period of a second type of termination conditions configured by a base station during uplink continuous repeated transmission of the same transmission block, wherein the monitoring period length of the first type of termination conditions is X times of the monitoring period length of the second type of termination conditions, and X is an integer greater than or equal to 1; carrying out blind test on the two types of termination conditions according to the monitoring period of the first type of termination conditions and the monitoring period of the second type of termination conditions; and choosing whether or not to terminate the uplink continuous repeated transmission of the transmission block according tothe blind test result. Subsequent repeated transmission can be terminated in time according to the termination conditions, so that the transmission resources of users can be saved, and the complexityof blind test by users can be reduced.

The present invention relates to an information transmitting method, a receiving method, a device and a storage medium in a direct-connection communication scenario. The information transmitting method includes following steps: a transmitting device determines the first frequency domain bandwidth occupied by control information to be sent, and the second frequency domain bandwidth occupied by userdata corresponding to the control information; the transmitting device occupies m different frequency domain resources and repeatedly transmits the control information to a receiving device for m times in a frequency division multiplexing manner; and the transmitting device occupies the target frequency domain resource and transmits the user data to the receiving device. In the technical scheme provided, the transmitting device occupies multiple different frequency domain resources, and repeatedly transmits the control information to the receiving device in a frequency division multiplexing manner; and compared with a situation that a transmitting device only transmit control information for one time, the probability of detecting the control information of the transmitting method is correspondingly improved when the receiving device performs blind detection on the control information, thus reducing the control information blind detection complexity of the receiving device.

An embodiment of the invention relates to a data transmission method and device and a storage medium. Downlink control information (DCI) with a fixed length is sent, and the DCI with the fixed lengthincludes detection parameters of DCI with variable lengths.

The invention discloses a method and a device for detecting and indicating multiple PDCCHs, a terminal and a base station. The detection method comprises the following steps: detecting a first PDCCH transmitted by a network; when it is detected that the format of the first PDCCH is DCI format 1 _ 1 and the first PDCCH contains time-frequency position information used for detecting a second PDCCH,decoding the first PDCCH to obtain the time-frequency position information of the second PDCCH; and detecting the second PDCCH based on the time frequency position information of the second PDCCH. Through the technical scheme provided by the invention, the change of the DCI format in the existing protocol can be reduced as much as possible, the blind detection complexity of the PDCCH is greatly reduced, and the configuration flexibility of the PDCCH is not reduced.

The invention discloses a protocol data unit generation method, a configuration method, a device and electronic equipment and belongs to the technical field of communication. The protocol data unit generation method is applied to a terminal. The method comprises the following steps: a media access control (MAC) entity of the terminal generates an MAC protocol data unit (PDU) for a currently scheduled hybrid automatic repeat request (HARQ) entity according to at least one of the following items: first indication information sent by network side equipment, second indication information sent by a physical layer entity to the MAC entity, the terminal is configured; and the MAC entity sends the generated MAC PDU to the physical layer entity. According to the technical scheme of the invention, the blind detection complexity of a network side can be reduced, and the processing complexity of uplink control signaling multiplexing of the terminal in an uplink data channel can be reduced.

The invention provides a precoding matrix indication method, a terminal and network side equipment. The method comprises the following steps: the terminal receives a control signaling sent by the network side equipment, the control signaling comprises the precoding information of N-bit, and the N is positive integer; the terminal determines the amount of the precoding particle according to the scheduling resource, and determines the precoding information bit of each precoding particle in the precoding information of N-bit according to the amount of the precoding particles, wherein each precoding particle comprises at least one sub-band, and each sub-band comprises at least one PRB; and the terminal acquires the precoding matrix indicated by the precoding information bit of each precoding particle. The blind test complexity of receiving the controlling signal by the terminal can be reduced through the indication method provided by the embodiment of the invention.

The invention relates to a blind detection control method and device, a base station, user equipment and a storage medium, and relates to the technical field of communication. The method comprises thefollowing steps: for an MPDCCH or an NPDCCH, determining a target PDCCH for sending downlink control information DCI at a base station side according to a pre-specified PDCCH set or a pre-configuredPDCCH retention period, and then sending the DCI to user equipment by using the target PDCCH; and correspondingly, on the user equipment side, determning a target PDCCH needing blind detection according to a pre-specified PDCCH set or a pre-configured PDCCH retention period, and using the target PDCCH for carrying out blind detection on DCI. According to the invention, the number of MPDCCHs or NPDCCHs required to be subjected to blind detection by user equipment can be reduced, so that the blind detection complexity of the user equipment can be reduced, and the blind detection power consumption is reduced.

Provided in an embodiment of the present invention are an information transmission method, a device, and a computer readable storage medium. The method comprises the steps of a network side sending an indication signal, the indication signal indicating one or more of the following information: a period of a synchronization / broadcast signal block (SSB); the time domain position of the indication signal; a time domain position of the SSB; the invention relates to a quasi-co-location (QCL) condition of SSBs.

The invention discloses a control information sending method, receiving method, device and a storage medium under directly-connected communication scene. The method comprises the steps that a sendingdevice determines a first frequency domain bandwidth occupied by user data to be sent; the sending device selects a second frequency domain bandwidth occupied by the control information correspondingto the user data from candidate frequency domain bandwidth in the number of n (n is integer more than 1); the sending device sends control information to the receiving device based on the second frequency domain bandwidth; the receiving device determines the candidate frequency domain bandwidth in the number of n of the control information sent by the sending device; the receiving device conductsblind detection on the control information based on the candidate frequency domain bandwidth in the number of n. The invention is advantageous in that as the second frequency domain bandwidth occupiedby the control information is selected by the preset candidate frequency domain bandwidth with limited amount, the frequency domain position possibly occupied by the control information can be relatively limited, and the blind-detecting complexity for the receiving device to the control information can be reduced.

The invention provides a PDCCH detection method and device and user equipment. The method comprises the following steps: measuring downlink channel quality after accessing an NR cell; and according to the quality of the downlink channel, demodulating the candidate PDCCHs corresponding to the aggregation levels according to the sequence of the aggregation levels from small to large or from large to small in the search space until the PDCCHs sent by the network side are detected. According to the invention, the order of the aggregation levels of the PDCCH can be automatically adjusted and demodulated according to the downlink channel quality, so that the number of blind detection times is reduced, the blind detection complexity is reduced, and the blind detection efficiency is improved.

The invention provides an initial signal transmission method and device and user equipment. The method comprises: receiving an initial signal sent by a base station after successful execution of LBT,the initial signal indicating related information of a search space of CORESET in a time initial part time slot occupied by a channel, or the initial signal indicating composition of the time initialpart time slot occupied by the channel; and executing CORESET detection at a corresponding position according to the related information of the search space of the CORESET in the time slot of the initial part of the channel occupation time or the composition of the time slot of the initial part of the channel occupation time. According to the invention, the detection position of the CORESET can beindicated, the blind detection complexity of the UE is reduced, and the purpose of saving energy is achieved.