53results about How to "Reduce the number of blind detections" patented technology

The invention discloses a method for detecting PDCCH in a carrier aggregation system. The method comprises the following steps that: a terminal detects the PDCCH which belongs to the terminal from one carrier in the carrier aggregation system, then determines position information of the detected PDCCH, and finally detects the PDCCH which belongs to the terminal from the carrier which corresponds to the position information. Due to the adoption of the method, the terminal does not need to blindly detect each carrier, so the number of blind detection is reduced. The invention also discloses a method and equipment for indicating the physical downlink control channel (PDCCH) in the carrier aggregation system, and the equipment and the system for detecting the PDCCH.

The present invention relates to a method of the transmitting and controlling signaling, comprising the following steps: the network distributes resource blocks for all user devices; the network sends the current information relative to the resource blocks on the public controlling channel and the network sends marks of the user device and other controlling signaling on other channels. Adopting the present invention can effectively reduce the times of the blind inspections of the user devices, thereby reducing the complexity for the user device receiving the controlling channels and reducing the probability of the occurring of the mistake inspections.

The invention provides a blind decoding method for reducing blind decoding times of PDCCHs (Physical Downlink Control Channels) based on polar codes and belongs to the field of communication. According to the method, before polarization coding is carried out, maximum values of two DCI (Downlink Control Information) lengths under a current transmission mode are calculated and unified, moreover, two possible DCI formats are distinguished through setting of a one-bit flag bit, and CRC check bits are added behind the information with the flag bit, thereby obtaining an information sequence participating in the polarization coding. Codon sequences transmitted by the PDCCHs are obtained through punching polarization coding according to a PDCCH aggregation level required by a high-level signal. In a blind decoding process of a user side, an information bit length output through decoding is calculated according to a transmission mode, a PDCCH sequence consistent with a current user identity is screened through a CASCL decoding algorithm, the final DCI information length is determined according to flag bits in a decoding result, and control information is extracted. According to the blind decoding method provided by the invention, on the premise of not improving an original decoding error rate, the decoding times is effectively reduced, the system efficiency is improved, and the practical application is facilitated.

The embodiment of the invention discloses a transmission method of a physical downlink control channel. The method includes steps: a terminal detects a first physical downlink control channel (PDCCH)and obtains first downlink control information (DCI) carried by the first PDCCH, wherein the first DCI includes one or more of following information: transmission information for a first indication and a second PDCCH and a transmission mode of the second PDCCH; and the terminal determines detection of the second PDCCH according to the first DCI. The embodiment of the invention also discloses a transmission apparatus of the physical downlink control channel.

The invention provides a design and a test method for a descending control channel in an LTE-Advanced system, particularly a descending control channel assignment method for a base station and a descending control channel blind test method for user equipment. PDCCH index information is introduced to a general DCI format according to the invention, which is used for the blind test on basal carrierfrequency, the user equipment realizes the rapid effective blind test course through the PDCCH index information, and the frequency of the blind test and the required power consumption are effectively reduced.

The embodiment of the invention discloses an information detection method, information detection equipment, an information transmission method and information transmission equipment. The information detection method comprises the following steps that: user equipment (UE) acquires at least one kind of antenna port configuration information occupied by a dedicated physical downlink control channel (D-PDCCH) configured on an evolved NodeB (eNB) side; the UE determines a searching space of the D-PDCCH; and the UE detects the D-PDCCH in the searching space according to the antenna port configuration information. According to the embodiment of the invention, the UE can detect the D-PDCCH, so that data transmission is ensured. Moreover, the time frequency resource-based PDCCH blind detection of the UE in the conventional system is expanded to a spatial dimension, namely an antenna port, so that the utilization efficiency of resources is improved, and the D-PDCCH can be detected within the spatial dimension.

The invention discloses a blind detection method, a user device blindly detects a control channel on a branch carrier in a first branch carrier set in a time transmission unit that needs to carry out control channel blind detection, wherein the first branch carrier set comprises a branch carrier selected from each type of branch carrier; and when the first branch carrier set includes at least one branch carrier which detects the control channel of the user device, the user device acquires control channel parameters of the control channel of the branch carrier which corresponds to the branch carrier that detects the control channel according to the control channel parameters and the control channel parameter mapping relation and carries out the blind detection on the control channel on the corresponding branch carrier according to the acquired control channel parameters. The invention simultaneously discloses blind detection device and system. The invention can realize the reduction of the blind detection frequency by narrowing the possible range of the blind detection.

The invention provides a blind detection method, which comprises the following steps: receiving a carrier which carries a physical downlink control channel (PDCCH), and acquiring a carrier indicator field (CIF) corresponding to the carrier from the carrier, wherein the CIF comprises three bits in all; determining the number N of downlink control information (DCI) needed to be detected according to the values of a second bit and a third bit of the acquired CIF; and carrying out blind detection, and ending the process of blind detection after N DCI is detected. With the adoption of the method provided by the invention, the error detection probability and the battery loss can be lowered.

The application discloses a beam selection method and equipment. The method comprises the following steps that: a terminal receives first beam configuration information transmitted by first network equipment, wherein the first beam configuration information is used for indicating a service beam, and the service beam is a downlink transmission beam on the side of the first network equipment configured by the first network equipment for the terminal; and the terminal receives downlink data transmitted by the first network equipment through the service beam. Therefore, after the first network equipment configures the service beam for the terminal, the first network equipment transmits downlink scheduling information and data to the terminal through the service beam, so that the terminal no longer needs to monitor scheduling information on other beams, thereby reducing the number of blind detection of the scheduling information and lowering the energy consumption of the terminal.

The invention discloses a scheduling information transmission method, user equipment and a base station. The method includes: generating random numbers corresponding to the user equipment according to preset rules; and when presence of the random numbers in pre-configured scheduling intervals is confirmed, subjecting control channels of the user equipment, in specific search space, to blind detection so as to obtain scheduling information of the user equipment. The user equipment comprises a generation module and a detection module. The base station comprises a generation module and a first transmitting module. Before detection or transmission of the control channels, whether the detection or transmission conditions are satisfied is determined, format of the control channels is determined and the position of the control channels is determined. Therefore, the times of blind detection of the control channels by the user equipment can be effectively reduced, electric quantity of the user equipment is reduced, energy consumption is lowered and user experience is improved further.

The invention provides a control information detection method, a control information sending method and equipment. The detection method comprises the following steps that terminal equipment determinesa first search space and a second search space, wherein the first search space is part of the second search space; the terminal equipment detects at least one first type of DCI in the first search space; and the terminal equipment detects at least one second type of DCI in the second search space, wherein the first type of DCI is used for scheduling data transmission with a first time length, thesecond type of DCI is used for scheduling data transmission with a second time length, and the first time length is smaller than the second time length. Through adoption of the method or the equipment in the embodiments of the invention, the search space of the data transmission with the low time delay requirement is small, and the blind detection frequency is small, so that the scheduling information can be quickly acquired, and the data processing speed is increased.

The invention discloses a channel resource indicating method. The method comprises the steps that the channel resource indicating information of an ePDCCH is obtained; the channel resource indicating information is transmitted to user equipment; the channel resource indicating information comprises resource indicating fields of y bits; the resource indicating fields are used for indicating the position of resources used by the ePDCCH; y is a positive integer. The invention further discloses a base station and the user equipment. The channel resource indicating method and device can reduce the cost of control commands used for indicating the ePDCCH, and the power consumption of the user equipment is saved.

The embodiment of the invention provides a method and system for acquiring a blind detection parameter, and related devices. The method comprises the following steps that: a communication signal or acommunication channel is detected to obtain a detection result; a blind detection parameter corresponding to the detection result is obtained, wherein the communication signal includes a wake-up signal or a sleep signal and the communication channel includes a wake-up channel or a sleep channel. Therefore, blind detection parameters can be flexibly obtained through the communication signal or thecommunication channel, so that the number of times of blind detection is reduced and the power consumption of the user terminal is saved.

The invention provides a communication method in a base station and a corresponding base station. The method comprises steps: the base station and the user equipment communicate on multiple service cells, and a search space sharing indicator is configured for multiple cells; the base station sends a physical downlink control channel PDCCH / an enhanced physical downlink control channel EPDCCH based on user equipment specific search space to the user equipment, wherein in a condition in which the user equipment is configured with a carrier indication field CIF or an enhanced carrier indication field ECIF and is configured with the shared search space, the position of a candidate bit of a control channel element CCE of the PDCCH / an enhanced control channel element ECCE of the EPDCCH which needs to be detected by each service cell configured to be the shared search space in the entire search space is decided by the cell identifier of another service cell configured to share the search space with the service cell. Correspondingly, the invention also provides a communication method in the user equipment and corresponding user equipment.

The invention relates to an uplink resource authorization method. The method includes the following steps that: a terminal receives configuration information from a network device, wherein the configuration information contains the information of first uplink resources and second uplink resources; and the terminal searches for a downlink control channel in a search space so as to obtain authorization information, the search space includes a first control channel candidate set when the downlink control channel carries the authorization information of a first (or second) uplink resource, and includes a second control channel candidate set when the downlink control channel carries the authorization information of the second (or first) uplink resource and / or the authorization information of downlink resources, wherein the first control channel candidate set and the second control channel candidate set are identical, or the first control channel candidate set deviates with respect to the second control channel candidate set, and the number of control channel candidates in the first control channel candidate set is smaller than the number of control channel candidates in the second control channel candidate set. According to the method, the search space is shared or the number of control channel candidates when the downlink control channel carries the authorization information of theuplink resources is reduced, and therefore, the number of the times of blind detection of the terminal can be decreased.

The embodiment of the invention provides a blind detection method and device based on polarization codes. The blind detection method comprises the following steps: a receiving device obtains blind detection information, wherein the blind detection information at least comprises the length of a first information bit sequence in a first to-be-decoded sequence corresponding to DCI of a first format, the position of a first freezing set, the length of a second information bit sequence in a second to-be-decoded sequence corresponding to DCI of a second format and the position of a second freezing set, and the lengths of the first to-be-decoded sequence and the second to-be-decoded sequence are the same; and the receiving device performs blind detection on a candidate physical downlink control channel (PDCCH) according to the blind detection information so as to obtain the DCI sent by the sending device. The blind detection method can reduce the blind detection frequency, and can improve the blind detection efficiency.

The invention provides a centralized enhanced physical downlink control channel (EPDCCH) blind detection method based on the sorting of PRBs, which is used for improving the EPDCCH blind detection efficiency. The method comprises the following steps: analyzing an average DMRS estimated difference value of adjacent symbols of the same sub-carriers with the same antenna port numbers in each PRB allocated to an EPDCCH; carrying out the sorting of the PRBs allocated to the EPDCCH according to the difference values; selecting a first aggregation level value of a first blind detection; and determining a selection direction of a next aggregation level if the first blind detection is unsuccessful. The blind detection method provided by the invention has the advantages that the EPDCCH blind detection efficiency is effectively improved, and higher rapidity and effectiveness are achieved.

The invention discloses a method for indicating a mobile terminal to control channel information and a method for controlling channel blind detection. The method for controlling channel bland detection comprises the steps: ensuring a modulating method of a next time slot mobile terminal service channel by a node B; numbering a control channel unit CCE which corresponds to the mobile terminal service channel; numbering the corresponding control channel unit with the same modulating method of the mobile terminal service channel into the same continuous control channel unit range; indicating control channel unit ranges and corresponding modulating methods of the service channel; and carrying out the blind detection sequentially in the control channel unit ranges by the mobile terminal according to the indication. The method can decrease the blind detection time, the blind diction time and the control signaling overhead of the mobile terminal and reduce the treating processes and the power consumption of the mobile terminal.

A processing method of downlink control information is disclosed, which includes: setting the master physical downlink control channel and at least one slave physical downlink control channel attributive to the master physical downlink control channel in the carrier unit supported by the terminals; wherein, the master physical downlink control channel is used for carrying the parameter information of the slave physical downlink control channel, the parameter information includes at least one of the followings: the position information of the slave physical downlink control channel, the format information of the slave physical downlink control channel and all the downlink control information of the slave physical downlink control channel for carrying the terminals. A transmitting method for the downlink control information in a LTE-Advanced system is provided in the invention, compared with the prior art, the processing method of downlink control information can be compatible with LTE-Advanced and LTE Release-8, the dispatching flexibility and the throughput of the LTE-Advanced system is improved and the blind detection times of the terminal are reduced.

Embodiments of the invention relate to an indication method, a base station and eMBB UE. The influence on the eMBB service performance of the eMBB UE can be avoided. The method includes sending a priority indication message to the eMBB UE, wherein the priority indication message is used for transmitting eMBB resources occupied by other services before indicating the eMBB UE.

The invention provides a blind detection method, which comprises the following steps: receiving a carrier which carries a physical downlink control channel (PDCCH), and acquiring a carrier indicator field (CIF) corresponding to the carrier from the carrier, wherein the CIF comprises three bits in all; determining the number N of downlink control information (DCI) needed to be detected according to the values of a second bit and a third bit of the acquired CIF; and carrying out blind detection, and ending the process of blind detection after N DCI is detected. With the adoption of the method provided by the invention, the error detection probability and the battery loss can be lowered.

The invention provides an information detection method, an information transmission method, an information processing method, an information receiving method, a terminal and network equipment. The detection method comprises the following steps of: detecting; under the condition that N pieces of downlink control information scheduled for the target service and in a preset format are detected, stopping detecting the downlink control information scheduled for the target service in the time unit, or stopping detecting the downlink control information scheduled for the target service in other preset formats in the time unit. According to the embodiments of the present invention, on one hand, by limiting the number and / or format of downlink control information detected by a terminal, the numberof blind detection times of the terminal in a time unit is reduced on the premise of not exceeding the maximum number of blind detection times supported by the terminal, so as to reduce the terminal complexity, improve the terminal processing time and reduce the terminal processing power consumption; and on the other hand, the embodiment of the invention allows the terminal to report the downlinkcontrol information detection capability information so as to assist the network equipment in judging the scheduling of the terminal and improve the performance of the terminal.

The embodiment of the invention discloses a wireless communication method and wireless communication equipment. The method comprises the following steps: receiving a target advance indication channel;and when the target advance indication channel indicates to perform PDCCH monitoring of a target physical downlink control channel, determining the format of the target PDCCH according to the targetadvance indication channel, the target PDCCH being a PDCCH related to the target advance indication channel. According to the method provided by the embodiment of the invention, the number of blind detection times of the terminal equipment on the PDCCH can be reduced, and the power consumption of the terminal equipment is reduced.

The embodiment of the invention discloses a method and device for transmitting downlink control information. The method comprises that: A base station determines a detection period of a terminal device detection DCI and at least one detection time within the detection period, wherein the detection period comprises at least two TTIs, the at least two TTIs comprising at least one TTI carrying the DCI and at least one TTI not carrying the DCI, the at least one detection time corresponds to the at least one TTI bearing the DCI, and the at least one detection time coincides with a start time of theat least one TTI bearing the DCI; The base station transmits the DCI to the terminal device at the at least one detection time in the detection period. Therefore, on the premise of not affecting theservice to be transmitted, the detection times of blind detection of PDCCH by the UE can be effectively reduced, and the energy consumption and the overhead of the UE can be reduced.

The embodiment of the invention provides a method, device and system for configuring search space, relates to the field of communication, and is used for realizing that a PDCCH carrying uplink and downlink ratio information can be normally sent, so that user equipment UE can timely obtain the uplink and downlink ratio information of a base station, thereby ensuring that the UE can complete data transmission according to the uplink and downlink ratio information and improving the user experience. The method comprises the following steps that: a base station configures a first sub-frame set, andsub-frames in the first sub-frame set are downlink sub-frames or special sub-frames; The base station configures a first common search space (CSS) on subframes in the first subframe set; And the basestation sends a physical layer downlink control channel (PDCCH) carrying uplink and downlink ratio information to user equipment (UE), the PDCCH being a PDCCH in the first CSS. The invention is suitable for the scene of transmitting the uplink and downlink ratio information.

One or more embodiments of this specification provide an airway management navigation method and system. By establishing an interactively operable digital anatomical model, and by measuring the patient's anatomical data and evaluating imaging data, the anatomical feature data of the patient's head, neck and airway are obtained. Input it into the interactive operation digital anatomical model, and adjust the model in real time. By establishing the digital model of the airway tool, the position and posture parameters of the patient's head and neck and airway anatomical model and the position and posture of the airway tool are tracked and sensed, and the head and neck and airway anatomical model and airway tool model for graphic fusion, and real-time output of airway and airway tool images, breaking through the forbidden area of ​​traditional surgical navigation technology in airway management application, easy to use and low cost, making airway management operations no longer necessary Relying on the glottic field of vision, it can effectively reduce the number of blind detection operations, improve the success rate of ventilation and intubation and the safety level of patients, and has good social benefits and market value.

Embodiments of the present invention provide a method, device, and system for configuring a search space, which relate to the communication field and are used to realize normal transmission of a PDCCH carrying uplink and downlink ratio information, so that user equipment UE can obtain the uplink and downlink configuration ratio of a base station in time information, so as to ensure that the UE can complete data transmission according to the uplink and downlink ratio information, and improve user experience. The method includes; the base station configures a first subframe set, and the subframes in the first subframe set are downlink subframes or special subframes; the base station configures on the subframes in the first subframe set The first common search space CSS: the base station sends a physical layer downlink control channel PDCCH carrying uplink and downlink ratio information to the user equipment UE, wherein the PDCCH is the PDCCH in the first CSS. The present invention is applicable to the scene of transmitting uplink and downlink ratio information.

The present disclosure discloses a wireless communication method and apparatus. The method comprises: receiving a target advanced indicator channel; and when the target advanced indicator channel indicates performing monitoring of a target Physical Downlink Control Channel (PDCCH), determining the format of the target PDCCH according to the target advanced indicator channel, the target PDCCH being a PDCCH related to the target advanced indicator channel.

The invention provides a method for controlling the channel resource distribution and the blind detection, comprising the following steps: (a) dividing the users into two groups, and encoding the control channel unit CCE; (b)distributing the CCE resource in the large-small order for the user in any group in the two groups of users, and distributing the CCE resource in the large-small order for another group of users; (c) when the user processes the blind detection for the CCE, confirming the group of the user and staring the blind detection in the small-large order for the CCE code according to the CCE resource distributing way for the group of the user, or staring the blind detection in the small-large order of the CCE code. The invention can reduce the blind detecting times for the users and reduces the complication of the user terminal. In addition, the invention is simple to achieve without increasing the extra system expenses.