CN111756512B - Blind detection method and device - Google Patents

Abstract

An embodiment of the present application provides a blind detection method and device, wherein the method includes: the terminal-side device receives first indication information from the network-side device; the first indication information is used to indicate at least one time unit of N time units; wherein , any one of the N time units is a first time unit, the first time unit of the N time units corresponds to a type of terminal operation, and the terminal operation is prohibited from performing the first operation, the second operation, and The third operation, or at least one of the first operation, the second operation, and the third operation is performed, the N time units belong to the same transmission time unit, and any time unit in the N time units includes at least one symbol, N is an integer greater than 0, the terminal-side device determines the N time units according to the first indication information, and executes the corresponding terminal operation in the first time unit of the N time units .

Description

A blind detection method and device

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China on March 29, 2019, with the application number 201910252628.3 and the title of the invention "A Blind Detection Method and Device", the entire contents of which are incorporated herein by reference Applying.

technical field

The present application relates to the technical field of communications, and in particular to a blind detection method and device.

Background technique

In the communication system, the network side device can send downlink control information (DCI) to the terminal side device through the physical downlink control channel (physical downlink control channel, PDCCH). Uplink scheduling information for transmitting data in a physical uplink shared channel (PUSCH), or downlink scheduling information for scheduling a terminal-side device to receive a physical downlink shared channel (PDSCH). The PDCCH is transmitted in multiple consecutive control channel elements (control channel element, CCE). The number of CCEs occupied by the PDCCH can be called the aggregation level of the PDCCH. For example, if the PDCCH occupies 4 CCEs, then the number of CCEs occupied by the PDCCH Aggregation level is 4.

The network-side device can pre-configure the PDCCH candidate set corresponding to each DCI to the terminal-side device through high-level signaling, but does not notify the terminal-side device on which or which PDCCH candidates will send the DCI, but the terminal-side device will send the DCI according to the network-side The configuration information sent by the device can determine the DCI currently expected to be received, so the terminal side device can perform blind detection (blind detection) on the PDCCH candidates in the PDCCH candidate set corresponding to the DCI currently expected to receive according to the configuration information. Due to the high complexity of blind detection, when the terminal-side device performs blind detection, it will consume a lot of power consumption. Therefore, the upper limit of the blind detection times of the terminal-side device in one time slot and the upper limit of the number of CCEs used for channel estimation are set. .

In the prior art, in order to avoid that the number of blind detections in a time slot is greater than the upper limit of blind detection times, and the number of CCEs used for channel estimation is greater than the upper limit of the number of CCEs, the terminal side device must determine the blind detection before blindly detecting the PDCCH. The number of times of blind detection for PDCCH detection, and the number of CCEs used for channel estimation of PDCCH. The terminal-side device will consume a lot of resources to determine the number of blind detection times for blind detection of PDCCH and the number of CCEs used for channel estimation, especially when the terminal-side device receives multiple DCIs at the same time, it will significantly increase the number of blind detection PDCCH of the terminal-side device. of complexity.

Contents of the invention

Embodiments of the present application provide a blind detection method and device to solve the problem of how to reduce the complexity of blind PDCCH detection.

In the first aspect, the embodiment of the present application provides a blind detection method, the method includes: the terminal side equipment receives the first indication information from the network side equipment; the first indication information is used to indicate N time units at least one time unit ; Wherein, any one of the N time units is a first time unit, and the first time unit of the N time units corresponds to a type of terminal operation, and the terminal operation is prohibited from performing the first operation, the second operation and the third operation, or perform at least one of the first operation, the second operation, and the third operation, the N time units belong to the same transmission time unit, and any time unit in the N time units includes At least one symbol, N is an integer greater than 0;

Wherein, the first operation is used to determine the number of times of blind detection of the physical downlink control channel PDCCH in the current time unit; the second operation is used to determine the non-overlapping channel used for channel estimation of the PDCCH in the current time unit The number of control channel element CCEs; the third operation is used to determine whether the number of blind detections of the PDCCH blindly detected in the current time unit is greater than the maximum number of blind detections corresponding to the current time unit, and/or used to determine whether the number of blind detections in the current time unit Whether the number of non-overlapping CCEs in the unit is greater than the maximum number of CCEs corresponding to the current time unit;

The terminal-side device determines the N time units according to the first indication information, and executes the corresponding terminal operation in a first time unit of the N time units.

The network-side device may use the first indication information to instruct the terminal-side device to perform some operations from the first operation to the third operation in a certain time unit of the same transmission time unit according to the granularity of the time unit instead of always performing the first operation. Operate to the third operation, or not perform the first operation to the third operation, so as to reduce the overhead of blind detection of the PDCCH by the terminal-side device and improve the efficiency of blind detection.

In the second aspect, the embodiment of the present application provides a blind detection method, which includes: the terminal-side device receives first indication information from the network-side device; the first indication information is used to indicate N time units and the N time units The type of each time unit in the time unit; for the first time unit in the N time units, the type of the first time unit is used to instruct the terminal-side device to execute the first time unit in the first time unit At least one of the first operation, the second operation, and the third operation, or not performing the first operation, the second operation, and the third operation; the N time units belong to the same transmission time unit, so Each time unit in the N time units includes at least one symbol, and N is an integer greater than 0; the first operation is used to determine the blind detection times of the physical downlink control channel PDCCH blindly detected in the current time unit; the second The operation is used to determine the number of non-overlapping control channel elements CCEs used for channel estimation of the PDCCH in the current time unit; the third operation is used to determine whether the blind detection times of the PDCCH in the current time unit are blindly detected greater than the maximum number of blind detections corresponding to the current time unit, and/or, used to determine whether the number of non-overlapping CCEs in the current time unit is greater than the maximum number of CCEs corresponding to the current time unit;

The terminal-side device determines a type of each time unit in the N time units according to the first indication information, and performs an operation indicated by the type of the time unit in each time unit.

The network-side device may indicate the type of each time unit through the first indication information, so that the terminal-side device determines that only the first operation to the third operation are performed in a certain time unit in the same transmission time unit according to the type of each time unit. Part of the operations in the operation, or not performing the first operation to the third operation, thereby reducing the overhead of blind detection of the PDCCH by the terminal-side device and improving the efficiency of blind detection.

In a possible implementation manner, the corresponding terminal operation includes the first operation, and the terminal-side device performs the first operation in the first time unit according to the first indication information, including: The terminal-side device determines the number of times of blind detection of the PDCCH among the M PDCCH candidates in the first time unit according to the first preset condition; Configured in the first time unit, M is an integer greater than 0; wherein, if any two PDCCH candidates among the M PDCCH candidates meet the first preset condition, then the any two PDCCH candidates correspond to one blind detection times , otherwise, any two PDCCH candidates correspond to two times of blind detection.

In a possible implementation manner, the first preset condition includes the following content:

The CCE sets corresponding to the two PDCCH candidates are the same;

The scrambling code sequences of the two PDCCH candidates are the same;

The two PDCCH candidates come from the same control resource set CORESET;

The downlink control information DCI blindly detected by the terminal side device in the two PDCCH candidates has the same length.

In a possible implementation manner, when the corresponding terminal operation includes the second operation, the terminal-side device performs the second operation in the first time unit according to the first indication information, including :

The terminal-side device determines the number of non-overlapping CCEs included in the M PDCCH candidates located in the first time unit according to the second preset condition and the third preset condition; the M PDCCH candidates are the network-side Configured by the device in the first time unit, M is an integer greater than 0; wherein, for any two CCEs in the M PDCCH candidates, if the two CCEs are from different PDCCH candidates, if If the any two CCEs satisfy at least one of the second preset condition and the third preset condition, then the any two CCEs are two non-overlapping CCEs, otherwise the any two CCEs are A non-overlapping CCE.

In a possible implementation manner, the second preset condition is that the two CCEs come from different control resource sets CORESET; the third preset condition is that the terminal-side device is in the The time of blind detection of PDCCH in the two PDCCH candidates is different.

In a possible implementation manner, when the corresponding terminal operation includes the third operation, the terminal-side device performs the third operation in the first time unit according to the first indication information, including :

The terminal-side device performs the following operations on the i-th search space set in the P search space sets according to the priority order of the P search space sets configured by the network-side device: the terminal-side device determines Among the PDCCH candidates included in the first search space set to the i-th search space set, whether the number of blind detections corresponding to the PDCCH candidates located in the first time unit is greater than the maximum corresponding to the first time unit If the number of times of blind detection is greater than, it is determined not to blindly detect the PDCCH in the ith search space set; i is an integer greater than or equal to 1 and less than or equal to P; or, the terminal side device judges that the first From the PDCCH candidates included in the ith search space set to the ith search space set, whether the number of non-overlapping CCEs included in the PDCCH candidates located in the first time unit is greater than the maximum corresponding to the first time unit If the number of CCEs is greater than, determine not to blindly detect the PDCCH in the i-th search space set; or, the terminal-side device judges the first search space set to the i-th search space set included Among the PDCCH candidates, the number of blind detections corresponding to the PDCCH candidate located in the first time unit is less than or equal to the maximum number of blind detections corresponding to the first time unit, and the terminal-side device determines the first search space set Among the PDCCH candidates included in the ith search space set, the number of non-overlapping CCEs included in the PDCCH candidates located in the first time unit is less than or equal to the maximum number of CCEs corresponding to the first time unit, Then it is determined to blindly detect the PDCCH in the ith search space set.

As a possible implementation, the transmission time unit includes K sets of public search spaces and H sets of user equipment-specific search spaces, and both K and H are integers greater than or equal to 0 (wherein, 0 means that they do not exist); When the corresponding terminal operation includes the third operation, the terminal-side device performs the third operation in the first time unit according to the first indication information, including:

The terminal-side device performs the following operations according to the order of the search space set identifiers of the H user equipment-specific search space sets from small to large:

For the user equipment-specific search space set with the search space set identifier j among the H user equipment-specific search space sets, the terminal side device determines that the user equipment-specific search space set with the search space set identifier j _min is included in the search space Among the PDCCH candidates included in the user equipment-specific search space set with the set identifier j, whether the number of blind detections corresponding to the PDCCH candidate located in the first time unit is greater than the maximum number of blind detections corresponding to the first time unit and The difference between the first blind detection times. If greater than, and among the H user equipment-specific search space sets, the user equipment-specific search space set whose search space set identifier is j _min is added to the PDCCH candidates included in the user equipment-specific search space set whose search space set identifier is j' If the number of blind detections corresponding to the PDCCH candidate located in the first time unit is less than the difference between the maximum number of blind detections corresponding to the first time unit and the first number of blind detections, then it is determined that the search space set is not identified as Blindly detect the PDCCH in the j user equipment-specific search space set and the remaining user equipment-specific search space sets whose search space set identifier is greater than j in the H user equipment-specific search space sets. Wherein, the first blind detection times is the sum of the blind detection times corresponding to the PDCCH candidates located in the first time unit among the PDCCH candidates included in the K common search space sets; j' is less than j, and j' Identify the search space set with the smallest difference from j among the H search space set identifiers corresponding to the H user equipment-specific search space sets. Optionally, for the user equipment-specific search space set, j is an integer greater than or equal to 1 and less than or equal to 39, and j _min is the smallest search space set identifier among the H user equipment-specific search space sets. For example, the network configures a user-specific search space set for the terminal, and the search space set IDs of the user-specific search space set are obtained after sorting the IDs in ascending order of 2, 3, 5, 7, and 9, respectively. If j takes a value of 7, then the set of search spaces that is less than 7 and has the smallest difference with 7 is identified as 5, and j' takes a value of 5.

And/or, the terminal-side device determines that among the PDCCH candidates included in the user equipment-specific search space set whose search space set identifier is k _min to the user equipment-specific search space set whose search space set identifier is k, it is located in the first Whether the number of non-overlapping CCEs included in the PDCCH candidates in the time unit is greater than the difference between the maximum number of CCEs corresponding to the first time unit and the first number of CCEs. If greater than, and among the H user equipment-specific search space sets, the user equipment-specific search space set whose search space set identifier is k _min is added to the PDCCH candidates included in the user equipment-specific search space set whose search space set identifier is k' , the number of non-overlapping CCEs included in the PDCCH candidates located in the first time unit is less than the difference between the maximum number of CCEs corresponding to the first time unit and the first number of CCEs, then it is determined that the number of non-overlapping CCEs not in the search space set is identified as Blind detection of PDCCHs in k user equipment-specific search space sets and the remaining user equipment-specific search space sets whose search space set identifiers are greater than k in the H user equipment-specific search space sets; the first number of CCEs is the K common search space set Among the PDCCH candidates included in the space set, the sum of the numbers of non-overlapping CCEs included in the PDCCH candidates located in the first time unit; k' is less than k, and k' corresponds to the H user equipment-specific search space sets Among the H search space set identifiers of , the search space set identifier with the smallest difference with k. For example, the network configures a user-specific search space set for the terminal, and the search space set IDs of the user-specific search space set are obtained after sorting the IDs in ascending order of 2, 3, 5, 7, and 9, respectively. If the value of k is 7, then the search space set that is less than 7 and has the smallest difference with 7 is identified as 5, then k' takes the value of 5;

And/or, for the user equipment-specific search space set whose search space set identifier is j among the H user equipment-specific search space sets, the terminal side device determines the user equipment-specific search space whose search space set identifier is j _min Collected into the PDCCH candidates included in the user equipment-specific search space set with the search space set identifier j, the number of blind detections corresponding to the PDCCH candidates located in the first time unit is less than the maximum blind detection times corresponding to the first time unit The difference between the number of detection times and the first number of blind detection times, and the number of non-overlapping CCEs included in the PDCCH candidates located in the first time unit is less than the difference between the maximum number of CCEs corresponding to the first time unit and the first number of CCEs value, it is determined to blindly detect the PDCCH in the user equipment-specific search space set with the search space set identifier j.

In a possible implementation manner, the first indication information includes L bits, and at least one bit in the L bits uniquely corresponds to the first time unit in the N time units; L is greater than or an integer equal to N;

The different bit state values of the at least one bit corresponding to the first time unit indicate the corresponding terminal operation of the terminal-side device in the first time unit.

In a possible implementation manner, the first indication information is an index value, and a pattern corresponding to the index value indicates the position of the N time units in the transmission time unit, and indicates the first The corresponding terminal operation described in the time unit.

In the third aspect, the embodiment of the present application provides a blind detection method, including: a network side device determines first indication information; the first indication information is used to indicate at least one time unit of N time units; wherein, the N time units Any one of the time units is a first time unit, and the first time unit of the N time units corresponds to a type of terminal operation, and the terminal operation is prohibited from performing the first operation, the second operation, and the third operation, or Perform at least one of the first operation, the second operation, and the third operation, the N time units belong to the same transmission time unit, any time unit in the N time units includes at least one symbol, and N is greater than An integer of 0; wherein, the first operation is used to determine the blind detection times of the physical downlink control channel PDCCH blindly detected in the current time unit; The number of non-overlapping control channel elements CCEs used; the third operation is used to determine whether the number of blind detections of the PDCCH blindly detected in the current time unit is greater than the maximum number of blind detections corresponding to the current time unit, and/or, for Determine whether the number of non-overlapping CCEs in the current time unit is greater than the maximum number of CCEs corresponding to the current time unit; the network-side device sends the first indication information to the terminal-side device.

The network-side device may indicate the type of each time unit through the first indication information, so that the terminal-side device determines to perform only part of the first operation to the third operation in one time unit according to the type of each time unit, Alternatively, the first operation to the third operation are not performed, thereby reducing the overhead of blind detection of the PDCCH by the terminal-side device and improving the efficiency of blind detection.

In a possible implementation manner, the first indication information includes L bits, and at least one bit in the L bits uniquely corresponds to the first time unit in the N time units; L is greater than or an integer equal to N;

The different bit state values of the at least one bit corresponding to the first time unit indicate the corresponding terminal operation of the terminal-side device in the first time unit.

In a possible implementation manner, the first indication information is an index value, and a pattern corresponding to the index value indicates the position of the N time units in the transmission time unit, and indicates the first The corresponding terminal operation described in the time unit.

In a fourth aspect, the present application provides a device. The device has the function of implementing the terminal-side equipment involved in the first aspect to the third aspect above, for example, the device includes a module or unit corresponding to the terminal-side equipment performing the steps involved in the above first aspect to the third aspect or Means, the function or unit or means (means) may be implemented by software, or by hardware, or by executing corresponding software by hardware.

In a possible design, the apparatus includes a processing unit and a transceiver unit, and the functions performed by the processing unit and the transceiver unit may correspond to the steps performed by the terminal-side device involved in the first aspect to the third aspect above.

In a possible design, the device includes a processor, and may further include a transceiver, where the transceiver is used to send and receive signals, and the processor executes program instructions to implement any possibility in the first to third aspects above. The method executed by the terminal-side device in the design or implementation manner.

Wherein, the device may further include one or more memories, and the memories are used to be coupled with the processor. The one or more memories may be integrated with the processor, or may be configured separately from the processor, which is not limited in this application.

In a possible manner, the memory stores necessary computer program instructions and/or data for implementing the functions of the terminal-side device involved in the first aspect to the third aspect. The processor may execute the computer program instructions stored in the memory to implement the method performed by the terminal-side device in any possible design or implementation manner of the first aspect to the third aspect.

In a fifth aspect, the present application provides a device. The device has the function of implementing the network-side equipment involved in the first aspect to the third aspect above, for example, the device includes a module or unit corresponding to the network-side equipment performing the steps involved in the first aspect to the third aspect above or Means. The functions or units or means (means) may be realized by software, or by hardware, or may be realized by executing corresponding software by hardware.

In a possible design, the apparatus includes a processing unit and a transceiver unit, and the functions performed by the processing unit and the transceiver unit may be the same as the network side equipment involved in any possible design or implementation of the first to third aspects above. corresponding to the steps performed.

In another possible design, the communication device includes a processor, and may further include a transceiver, the transceiver is used to send and receive signals, and the processor executes program instructions to complete the first aspect to the third aspect. A method performed by a network side device in any possible design or implementation manner.

Wherein, the device may further include one or more memories, and the memories are used to be coupled with the processor. The one or more memories may be integrated with the processor, or may be configured separately from the processor, which is not limited in this application.

In a possible manner, the memory stores necessary computer program instructions and/or data for realizing the functions of the network side device involved in any possible design or implementation manner in the above first aspect to the third aspect. The processor may execute the computer program instructions stored in the memory to complete the method performed by the network side device in any possible design or implementation manner in the first aspect to the third aspect.

An embodiment of the present application provides a computer-readable storage medium, where computer-readable instructions are stored in the computer-readable medium, and when the computer reads and executes the computer-readable instructions, the computer can execute any of the above-mentioned possible designs method in .

An embodiment of the present application provides a computer program product. When a computer reads and executes the computer program product, the computer is made to execute the method in any one of the above possible designs.

An embodiment of the present application provides a chip configured to read and execute a software program stored in a memory, so as to implement the method in any of the foregoing possible designs. Wherein, the memory is connected to the chip, or the memory is built in the chip.

Description of drawings

FIG. 1 is a schematic diagram of a communication system applicable to the communication method of the embodiment of the present application;

FIG. 2 is a schematic flow chart of a blind detection method provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of a transmission time unit provided in an embodiment of the present application;

FIG. 4 is a schematic diagram of a transmission time unit provided in an embodiment of the present application;

FIG. 5 is a schematic diagram of a transmission time unit provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of a transmission time unit provided in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

Embodiments of the present application can be applied to various mobile communication systems, for example: new radio (new radio, NR) system, global system of mobile communication (global system of mobile communication, GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, advanced long term evolution (advanced long termevolution, LTE-A) system, universal mobile telecommunication system (universal mobile telecommunication system, UMTS), evolved long term evolution (evolved long term evolution, eLTE) system, future communication system and other communication systems, specifically, there is no limitation here.

To facilitate understanding of the embodiment of the present application, first, the communication system shown in FIG. 1 is taken as an example to describe in detail the communication system applicable to the embodiment of the present application. Fig. 1 shows a schematic diagram of a communication system applicable to the communication method of the embodiment of the present application. As shown in FIG. 1 , the communication system 100 includes a network-side device 102 and a terminal-side device 106. The network-side device 102 may be configured with multiple antennas, and the terminal-side device 106 may also be configured with multiple antennas.

In this embodiment of the present application, the terminal-side device is a device with a wireless transceiver function or a chip that can be configured in the device. Wherein, the device with wireless transceiver function may also be called user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, remote station, remote terminal, mobile device, user terminal, user agent or user device. In practical applications, the terminal-side device in the embodiment of the present application may be a mobile phone, a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal, an augmented reality (augmented Reality, AR) terminals, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid , wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc. The embodiments of the present application do not limit the application scenarios. In this application, the aforementioned device with wireless transceiver function and the chips that can be installed in the device are collectively referred to as terminal-side device.

In this embodiment of the application, the network side device may be a wireless access device of various standards, such as an evolved Node B (evolved Node B, eNB), a radio network controller (radio network controller, RNC) or a Node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (basetransceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU ), wireless fidelity (wireless fidelity, WIFI) system access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP), etc., It can also be a gNB or a transmission point (TRP or TP) in a 5G (NR) system, one or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or it can also be a gNB or a transmission point network nodes, such as a baseband unit (BBU), or a DU under a centralized-distributed (central unit-distributed, CU-DU) architecture.

The network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. For the evolution of architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

Referring to FIG. 2 , it is a schematic flowchart of a blind detection method provided by the embodiment of the present application. The method includes:

Step 201: The network side device determines first indication information.

In this embodiment of the present application, the first indication information may explicitly indicate the operation performed by the terminal-side device in each time unit. In this case, the first indication information is used to indicate at least one time unit for N time units (for example, all N time units); wherein, any one of the N time units is a first time unit, and the first time unit of the N time units corresponds to a type of terminal operation, and the terminal operation is to be It is forbidden to execute the first operation, the second operation, and the third operation, or to execute at least one of the first operation, the second operation, and the third operation, the N time units belong to the same transmission time unit, and the N time units Any time unit in the unit includes at least one symbol, and N is an integer greater than 0; wherein, the first operation is used to determine the blind detection times of the physical downlink control channel PDCCH blindly detected in the current time unit; the second operation uses To determine the number of non-overlapping control channel elements CCEs used for channel estimation of the PDCCH in the current time unit; the third operation is used to determine whether the number of blind detections of the PDCCH in the current time unit is greater than the current The maximum number of blind detection times corresponding to the time unit, and/or used to determine whether the number of non-overlapping CCEs in the current time unit is greater than the maximum number of CCEs corresponding to the current time unit.

In this embodiment of the present application, the first indication information may also implicitly indicate the operation performed by the terminal-side device in each time unit. In this case, the first indication information indicates N time units and the N The type of each time unit in the N time units; for the first time unit in the N time units, the type of the first time unit is used to instruct the terminal-side device to execute in the first time unit At least one of the first operation, the second operation, and the third operation, or the first operation, the second operation, and the third operation are not performed. The first time unit is any time unit in the N time units.

It should be noted that the number of time units indicated by the first indication information may be greater than N, but it only indicates which operations the terminal-side device performs in the N time units, and does not indicate other time units. At this time, the terminal-side device can follow In prior art methods, blind detection is performed in time units that do not indicate which operations to perform.

Step 202: The network side device sends the first indication information to the terminal side device.

Step 203: The terminal-side device receives first indication information from the network-side device.

Step 204: The terminal-side device determines the N time units according to the first indication information, and executes the corresponding terminal operation in a first time unit of the N time units.

In the above method, the first indication information instructs the terminal side device to perform at least one of the first operation, the second operation and the third operation in any time unit in the same transmission time unit, or not to perform the above The first operation, the second operation, and the third operation. The terminal-side device performs at least one of the above three operations according to different time units (such as span) included in the same transmission time unit (such as a time slot in NR). On the one hand, it does not perform operations according to the entire transmission time unit, and on the other hand On the one hand, all the time units contained in the same transmission time unit may not all perform the above three operations (but at least one), so that the number of blind detections for the terminal-side device to determine the blind detection of the PDCCH and determine the channel estimation of the PDCCH can be reduced. Resource consumption during operations such as the number of CCEs used reduces the complexity of blind detection performed by terminal-side devices.

In the embodiment of the present application, the network side device may divide one transmission time unit into multiple time units, and each time unit includes at least one symbol. Wherein, the transmission time unit may refer to a time slot in the NR system, or may refer to a subframe in the LTE system or the like. The time unit described in the embodiment of this application can be the span described in the current protocol, or a combination of at least two spans described in the protocol, or other types of time units; the symbol can refer to orthogonal frequency division Multiplexing (orthogonal frequency division multiplexing, OFDM) symbols may also refer to other types of symbols, which will not be repeated here. For example, as shown in FIG. 3 , a transmission time unit includes 14 symbols, and the network side device divides the transmission time unit into three time units, which are time unit 1, time unit 2 and time unit 3, respectively.

It should be noted that a span is a time unit specified in the current protocol, and the length of each span is at least Y consecutive OFDM symbols, and Y is an integer greater than 0. For example, the network side device can indicate whether the terminal side device supports the time interval between the start symbols of two spans to be at least X consecutive OFDM symbols through high-level signaling (such as radio resource control signaling), and the terminal side The device has at least one PDCCH monitoring opportunity in each of the two spans, and at least one of them is not a monitoring opportunity in the downlink basic capability. The possible combinations of X and Y are (X,Y)=(7,3) or (X,Y)={(4,3),(7,3)} or (X,Y)={(2,2 ),(4,3),(7,3)}.

Currently, for any time unit in a transmission time unit, the terminal-side device needs to perform the zeroth to third operations in a time unit:

The zeroth operation, according to the method in the existing protocol, calculates the position of the CCE included in the PDCCH candidate located in the current time unit among all the PDCCH candidates included in each monitored search space set (search spaceset).

The first operation is to determine the number of times of blind detection of the PDCCH in the current time unit.

The terminal-side device can blindly detect one PDCCH candidate once, and if two PDCCH candidates meet the first preset condition, the terminal-side device only needs to blindly detect the two PDCCH candidates once. Therefore, in order to improve the efficiency of blind detection, the terminal side device may first determine the number of PDCCH candidates that meet the first preset condition, so as to determine the number of times of blind detection.

If the current time unit includes multiple PDCCH candidates, for any two PDCCH candidates, when the any two PDCCH candidates meet the first preset condition, the any two PDCCH candidates correspond to a number of times of blind detection, and the terminal The side device blindly detects one of the any two PDCCH candidates; when the any two PDCCH candidates do not meet the first preset condition, the any two PDCCH candidates correspond to two times of blind detection, and the terminal side device Blind detection is performed twice in any two PDCCH candidates. Wherein the first preset condition includes the following:

The CCE sets corresponding to the two PDCCH candidates are the same, that is, the aggregation levels of the two PDCCH candidates are the same, and the starting CCE positions of the included CCEs are the same;

The scrambling code sequences of the two PDCCH candidates are the same;

The two PDCCH candidates come from the same control resource set (Control Resource Set, CORESET);

The length of DCI blindly detected by the terminal side device in the two PDCCH candidates is the same.

In combination with the above description, if the first indication information indicates N time units, for the first time unit in the N time units, the first time unit is any time unit in the N time units, when the terminal side device According to the first indication information, when it is determined that the first operation is performed in the first time unit, the terminal-side device may determine to blind the M PDCCH candidates in the first time unit according to the first preset condition Detect the number of times of blind detection of the PDCCH; the M PDCCH candidates are configured by the network side device in the first time unit, M is an integer greater than 0, and the terminal side device can determine the first time through the zeroth operation For the specific process of the M PDCCH candidates included in the unit and the position of the CCE included in each PDCCH candidate, reference may be made to the prior art, which will not be repeated here.

The second operation is to determine the number of non-overlapping CCEs used for channel estimation on the PDCCH in the current time unit.

Since the CCEs included in different PDCCH candidates may overlap, only one of the CCEs can be used for channel estimation during channel estimation. For this reason, the terminal side device can determine the number of non-overlapping CCEs before performing channel estimation to improve the performance of channel estimation. efficiency.

For any two CCEs, if the any two CCEs are from different PDCCH candidates, if the any two CCEs meet at least one of the second preset condition and the third preset condition, then the Any two CCEs are two non-overlapping CCEs; otherwise, any two CCEs are one non-overlapping CCE.

Wherein, the second preset condition is that the two CCEs come from different CORESETs; the third preset condition is that the time when the terminal-side device blindly detects the PDCCH in the two PDCCH candidates corresponding to the two CCEs is different .

In combination with the above description, if the first indication information indicates N time units, for the first time unit in the N time units, the first time unit is any time unit in the N time units, when the terminal side device According to the first indication information, when it is determined that the second operation is performed in the first time unit, the terminal-side device may determine that it is located in the first time unit according to the second preset condition and the third preset condition The number of non-overlapping CCEs included in the M PDCCH candidates.

The third operation is to determine whether the number of blind detections of the PDCCH in the current time unit is greater than the maximum number of blind detections corresponding to the current time unit, and/or determine whether the number of non-overlapping CCEs in the current time unit is greater than the current time unit The maximum number of CCEs corresponding to the time unit.

A PDCCH candidate set of a PDCCH may be called a search space set, and the search space set may be divided into a common search space set (common search space set, CSS set) and a user equipment specific search space set (UEspecific search space set, USS set). The priority of CSS set is higher, and the priority of USS set is lower than that of CSS set.

The network-side device configures the number of blind detections corresponding to the CSS set and the number of non-overlapping CCEs used for channel estimation not to exceed the maximum number of blind detections and the corresponding maximum number of CCEs corresponding to one NR time slot, thus ensuring that the UE can detect only one All CSS sets configured in the slot will not discard any CSS set after performing the first operation, the second operation, and the third operation, that is, the UE will perform blind detection corresponding to all CSS sets configured by the network side device within one time slot. PDCCH and channel estimation is performed on the corresponding non-overlapping CCEs. Only the USS set may be discarded after the first operation, the second operation and the third operation, that is, the UE may not perform blind detection on one or more USS sets and may not perform channel estimation on the corresponding non-overlapping CCEs.

If the first indication information indicates N time units, for the first time unit in the N time units, the first time unit is any time unit in the N time units, when the terminal side device according to the first time unit Indication information, when it is determined that when the third operation is performed in the first time unit, the terminal-side device, according to the order of priority of the P search space sets configured by the network-side device, targets the P search spaces In the i-th search space set in the set, it is judged whether the number of blind detection times corresponding to the PDCCH candidates included in the i-th search space set is greater than the maximum number of blind detection times corresponding to the first time unit. i is an integer greater than or equal to 1 and less than or equal to P.

If it is determined that among the PDCCH candidates included in the first search space set to the i-th search space set, the number of blind detection times corresponding to the PDCCH candidates located in the time unit is greater than the maximum number of blind detection times corresponding to the time unit, in When the i-th search space set is a user equipment-specific search space set, it is determined not to blindly detect the PDCCH in the i-th search space set; or, the terminal-side device determines that the first search space set is to the first Among the PDCCH candidates included in the i search space set, the number of non-overlapping CCEs included in the PDCCH candidates located in the time unit is greater than the maximum number of CCEs corresponding to the time unit, and the ith search space set is dedicated to the user equipment When searching for a space set, it is determined not to blindly detect the PDCCH in the ith search space set.

When the terminal side device determines that the sum of blind detection times of all PDCCH candidates in the current time unit is greater than the maximum number of blind detection times corresponding to the current time unit, the terminal side device can delete the USS with the lowest priority, that is, in the current time unit , do not perform blind detection in the PDCCH candidates included in the USS.

Or, when the terminal-side device determines that the number of non-overlapping CCEs used for channel estimation in the current time unit is greater than the maximum number of CCEs corresponding to the current time unit, the terminal-side device can delete the USS set with the lowest priority, that is, in the current time unit, Channel estimation is performed without using the CCEs included in the PDCCH candidates included in the USS set, so that blind detection is not performed in the PDCCH candidates included in the USS.

It should be noted that the terminal side device must perform blind detection among the PDCCH candidates included in the CSS set. The number of blind detection times determined by the second operation for all CSS set PDCCH candidates configured by the network side device for a terminal side device within a time unit will not exceed the maximum number of blind detection times for this time unit, and the network side device is configured for The number of non-overlapping CCEs determined by the PDCCH candidates of all CSS sets of a terminal-side device through the third operation within a time unit will not exceed the maximum number of CCEs in this time unit.

When the terminal-side device performs the third operation, the order in which the USS set performs judgments may be as follows:

Judge according to the order of USS set index from small to large; that is, the USS set index is the smallest, first judge whether the number of blind detections corresponding to the PDCCH candidates included in the USS set is greater than the maximum number of blind detections corresponding to the current time unit, and judge Whether the number of non-overlapping CCEs included in the PDCCH candidates included in the USS set is greater than the maximum number of CCEs corresponding to the current time unit.

·The USS set based on non-slot scheduling (non-slot-level scheduling) has a higher priority than the USS set based on slot scheduling, and the USS set based on non-slot scheduling is judged first. Based on all USS sets scheduled in the non-slot, the advanced judgment of the USS set with the most monitoring opportunities, that is, the USS set with the largest number of "1" in the monitoringSymbolsWithinSlot in the high-level parameter searchSpace IE enters the judgment first, or all bits in the monitoringSymbolsWithinSlot sequence The numbers are summed, and the largest priority enters the judgment.

· In the USS set, the USS set that has scheduled high-priority DCI is prioritized for judgment.

Combined with the above description, for example, the network-side device configures four search space sets for the terminal-side device, namely CSS#0, CSS#1, USS#1 and USS#2; CSS#0 and CSS#1 are The public search space set, USS#1 and USS#2 are user equipment-specific search space sets. CSS#0 and CSS#1 are bound to CORESET#0, and CORESET#0 occupies 2 symbols in the time domain and 24 RB in the frequency domain. USS#1 is bound to CORESET#1, CORESET#1 occupies 3 symbols, and the frequency domain occupies 12 RBs. USS#2 is bound to CORESET#2, and CORESET#2 occupies 1 symbol in the time domain and 16CCE in the frequency domain.

The terminal-side device first performs step 1:

For CSS#0, through the zeroth operation and the first operation, it is determined that the number of times of blind detection of PDCCH candidates in CSS#0 is 14 times. It is determined through the second operation that the PDCCH candidates in CSS#0 include 16 non-overlapping CCEs. CSS#0 occupies 8 CCEs on symbol #0, but occupies 8 CCEs on symbol #7. Due to different monitoring timings, even though CSS#0 and CSS#1 are bound to CORESET#0, they still count as 8+ 8 = 16 non-overlapping CCEs.

For CSS#1: through the zeroth operation and the first operation, it is determined that the number of times of blind detection of the PDCCH candidates in CSS#1 is 2. It is determined through the second operation that the PDCCH candidates in CSS#1 include 16 non-overlapping CCEs. Since CSS#1 occupies 8 CCEs on symbol #0, the monitoring timing of CSS#0 is the same as on symbol #0, and both are bound to CORESET#0, completely overlapping, so CSS#1 occupies non-overlapping CCEs The number is included in CSS#0, and CSS#1 accounts for 0.

The total number of blind detections corresponding to CSS#0 and CSS#1 is 14+2=16 times, and the total number of occupied non-overlapping CCEs is 16. Assuming that the maximum number of blind detection times is 44 and the maximum number of CCEs is 56, the sum of blind detection times occupied by CSS#0 and CSS#1 and the sum of the number of non-overlapping CCEs are removed from the maximum number of blind detection times and the maximum number of CCEs respectively, as The judgment upper limit of USS#1 and USS#2, that is, the maximum number of blind detections of USS#1 and USS#2 is 44-16=28, and the maximum number of CCEs is 56-16=40.

The terminal-side device then performs step 2:

For USS#1, through the zeroth operation and the first operation, it is determined that the number of times of blind detection of PDCCH candidates in USS#1 is 16 times. It is determined through the second operation that the PDCCH candidates in USS#1 occupy 12 non-overlapping CCEs. USS#1 occupies 12 CCEs on symbol #0. Although the monitoring timing of CSS#0 and CSS#1 is on symbol #0, USS#1 is bound to CORESET#1, which is different from CORESET#0, so it is independent Count 12 non-overlapping CCEs.

Through the third operation, it is determined that the number of blind detections corresponding to USS#1 is less than 28, and the number of non-overlapping CCEs corresponding to USS#1 is less than 40. Therefore, the number of blind detections occupied by USS#1 and the number of non-overlapping CCEs occupied by USS#1 are removed from the upper limit of judgment. That is, the maximum number of blind detections of USS#2 is 28-16=12, and the maximum number of CCEs is 40-12=28.

For USS#2: through the zeroth operation and the first operation, determine the blind detection times 3*7=21 times of PDCCH candidates in USS#2. It is determined through the second operation that the PDCCH candidates in USS#2 occupy 16*7=102 non-overlapping CCEs.

Through the third operation, it is determined that the number of blind detections corresponding to USS#2 is greater than 12, and the number of non-overlapping CCEs corresponding to USS#2 is greater than 28, so delete the configuration of USS#2, and only monitor CSS#0, CSS#1 and USS#1, that is, blindly detect PDCCH only in CSS#0, CSS#1 and USS#1.

In this embodiment of the present application, the network side device may configure the PDCCH candidates included in each time unit of the terminal side device, the maximum number of blind detections corresponding to each time unit, and the maximum number of CCEs corresponding to each time unit. The maximum number of CCEs can be used as the number of non-overlapping CCEs used for channel estimation in the prior art. The existing technology defines the maximum number of blind detection times and the maximum number of CCEs in one NR time slot, and the terminal side device always performs the zeroth operation, the first operation, the second operation, and the third operation according to the granularity of the NR time slot. kind of operation. In the embodiment of this application, the terminal-side device performs the first operation, the second operation and the third operation within the granularity of the time unit (for example, 2 spans) included in the same transmission time unit (for example, one NR time slot). At least one action, or none of the three actions. Optionally, the length of the time unit included in a transmission time unit may be equal to the length of the transmission time unit. After performing the zeroth operation, the terminal side device may further perform the first operation, the first operation, and the second operation according to the instructions of the network side device. Part of the second operation and the third operation, and not all three operations are always performed at the granularity of this transmission time unit. Optionally, the length of the time unit included in a transmission time unit does not exceed the length of the transmission time unit, and the terminal-side device may further perform the first operation, Part of the second operation and the third operation are performed, but all three operations are not always performed at the time unit granularity included in the transmission time unit. The number of time units included in one transmission time unit may be predefined by the protocol, or configured by the network side device to the terminal side device through high-level signaling. For example, an NR slot containing 14 OFMD symbols can contain 2 time units each of length 7 OFDM symbols, or 2 time units of length 6 OFDM symbols and 8 OFDM symbols respectively, or contain lengths 1 time unit of 14 OFDM symbols, or 14 time units each of length 1 OFDM symbol.

As a possible implementation manner, the maximum number of blind detections and the corresponding maximum number of CCEs corresponding to different time units may be the same or different. For example, taking the transmission time unit as an NR time slot as an example, the maximum number of blind detection times B and the maximum number of CCEs C in one time slot. One time slot can be divided into 4 time units, namely time units A1, A2, A3 and A4. The maximum number of blind detection times B1 corresponding to the time unit A1, and the maximum number of CCEs C1. Similarly, the maximum number of blind detections B2 corresponding to time unit A2, and the maximum number of CCEs C2, the maximum number of blind detections B3 corresponding to time unit A3, and the maximum number of CCEs C3, the maximum number of blind detections B4 corresponding to time unit A4, and the maximum The number of CCEs C4. Optionally, B1 equals B2 equals B3 equals B4, or the relationship among B1, B2, B3 and B4 is not limited. Optionally, C1 is equal to C2 and equal to C3 and equal to C4, and the sum of C1, C2, C3 and C4 is less than or equal to C. Optionally, the relationship among C1, C2, C3 and C4 is not limited, and the sum of C1, C2, C3 and C4 is less than or equal to C.

As a possible implementation, the sum of the maximum number of blind detections corresponding to different time units is less than or equal to the maximum number of blind detections corresponding to one time slot, and the sum of the maximum number of CCEs corresponding to different time units is less than or equal to the maximum number of blind detections corresponding to one time slot The maximum number of CCEs. For example, the maximum number of blind detection times B and the maximum number of CCEs C in one time slot. 1 time slot is divided into 4 time units, namely A1, A2, A3 and A4. The maximum number of blind detection times B1 corresponding to the time unit A1, and the maximum number of CCEs C1. Similarly, the maximum number of blind detections B2 corresponding to time unit A2, and the maximum number of CCEs C2, the maximum number of blind detections B3 corresponding to time unit A3, and the maximum number of CCEs C3, the maximum number of blind detections B4 corresponding to time unit A4, and the maximum The number of CCEs C4. The sum of B1, B2, B3 and B4 is less than or equal to B, and the sum of C1, C2, C3 and C4 is less than or equal to C.

Or, the maximum number of blind detection times B1 or B _i corresponding to one or more (including 2) time units when the UE performs the first operation, the second operation, and the third operation, and the sum of i≥1 is less than or equal to B, The maximum number of CCEs C1 or C _i corresponding to one or more time units in which the terminal-side device performs the first operation, the second operation, and the third operation, and the sum of i≥1 is less than or equal to C. For example, for the maximum number of blind detections B and the maximum number of CCEs C in a time slot, a time slot is divided into 4 time units, which are time unit A1, time unit A2, time unit A3, and time unit A4. The network side device instructs the UE to perform the first operation, the second operation and the third operation in the time unit A1 and the time unit A3, and to perform the first operation, the second operation and the third operation in the time unit A2 and the time unit A4 At least one action but not all actions. The sum of B1 and B3 is less than or equal to B, and the sum of C1 and C3 is less than or equal to C.

The above B1, B2, B3, B4, C1, C2, C3, C4, B and C may be a value fixed by the protocol, or a value related to the capability of the UE. The UE reports the maximum blind detection capability value and the maximum number of CCEs capability value to the network through high-layer signaling (such as RRC signaling), and the maximum blind detection capability value and the maximum number of CCEs capability value may be the maximum value corresponding to one time slot. The blind detection capability and the maximum number of CCEs can also be the maximum blind detection capability and the maximum number of CCEs corresponding to a certain time unit, or the maximum blind detection capability and the maximum CCE number capability value, for example, the reported capability value is bound to the maximum blind detection capability value B1 corresponding to a certain time unit and the maximum CCE number capability value C1, and/or bound to the maximum blind detection capability value corresponding to another time unit The ability value B2 and the maximum number of CCEs ability value C2, and so on.

In a possible implementation manner, if in a time unit, none of the PDCCH candidates configured by the network-side device in the time unit meets the first preset condition, the network-side device may instruct the terminal-side device not to The first operation is performed, thereby reducing the complexity of blind detection of the terminal-side device.

In a possible implementation manner, if in a time unit, the CCEs included in the PDCCH candidates configured by the network side device in the time unit all meet at least one of the second preset condition and the third preset condition, The network-side device may instruct the terminal-side device not to perform the second operation within the time unit, thereby reducing the complexity of blind detection by the terminal-side device.

In a possible implementation, if in a time unit, the number of blind detections corresponding to the PDCCH candidates configured by the network side device in the time unit is less than or equal to the maximum number of blind detections corresponding to the time unit, and the configuration on the terminal side If the number of non-overlapping CCEs used by the device for channel estimation in this time unit is less than or equal to the maximum number of CCEs corresponding to this time unit, the network-side device can instruct the terminal-side device not to perform the third operation in this time unit, thereby reducing terminal The complexity of side device blind detection.

In a possible implementation, in a certain time unit of at least one time unit in which the terminal-side device needs to perform the first operation, the second operation, and the third operation, the protocol stipulates that the network configures the same CSS set and/or USSset, Or the protocol stipulates that all the search space sets used for non-slot granularity scheduling (for example, according to each time unit granularity scheduling included in a time slot, or combined granularity scheduling including multiple time units) in the network configuration are the same, Or the protocol stipulates that all search space sets configured by the network for scheduling based on the time slot granularity are the same.

In combination with the above description, in this embodiment of the present application, the network side device can configure PDCCH candidates so that the terminal side device only performs part of the first operation to the third operation in one time unit, or does not perform the first operation to the third operation. The third operation is to reduce the overhead of blind detection of the PDCCH by the terminal side equipment and improve the efficiency of blind detection.

In the embodiment of the present application, there may be multiple implementation manners for the first indication information.

In the first implementation manner, the first indication information may be a bitmap, and the network-side device may send the bitmap through high-level signaling to indicate the operation performed by the terminal-side device in each of the N time units .

When the first indication information may be a bitmap, the first indication information includes L bits, and at least one bit in the L bits is uniquely corresponding to one time unit in the N time units; L is greater than or an integer equal to N.

For the first time unit in the N time units, the first time unit is any time unit in the N time units, and the difference between at least one bit of the L bits corresponding to the first time unit value, indicating that the terminal-side device performs at least one of the first operation, the second operation, and the third operation in the first time unit, or does not perform the first operation, The second operation and the third operation.

It should be noted that, among the N time units, the position of each time unit in the transmission time unit and the number of symbols included may be preset. For example, a transmission time unit includes 14 symbols, which can be pre-divided into 2 time units. The first time unit occupies the first 7 symbols of the transmission time unit, and the second time unit occupies the last 7 symbols of the transmission time unit. symbol. At this time, the first indication information only needs to indicate the operation performed by the terminal-side device in each time unit.

In this implementation manner, among the N time units, the position of each time unit in the transmission time unit and the number of symbols included may also be indicated by the first indication information. How to indicate specifically is not limited in this embodiment of the present application. For example, the first indication information may use 14 bits to indicate the positions of time unit 1 to time unit 4 and the number of symbols included, for example, the values of the 14 bits are 0000, 1111, 000, 111, indicating time unit 1 Including symbols 0 to 3, time unit 2 includes symbols 4 to 7, time unit 3 includes symbols 8 to 10, and time unit 4 includes symbols 11 to 13. Of course, the above are only examples, and there may be other situations, which will not be repeated here.

In the second implementation manner, in the embodiment of the present application, the type of each time unit may also be preset, and the terminal-side device needs to perform different operations for different types of time units.

In the embodiment of the present application, there may be multiple implementation manners for the corresponding relationship between the type of the time unit and the operation performed by the terminal-side device. For example, since the zeroth operation is an operation that must be performed, and the first to third operations are optional operations, the corresponding relationship between different types of time units and operations performed by the terminal-side device can be shown in Table 1.

Table 1

In Table 1, "×" indicates that the terminal-side device does not need to perform corresponding operations in this type of time unit, and "√" indicates that the terminal-side device needs to perform corresponding operations in this type of time unit. For example, referring to Table 1, the terminal-side device performs the first operation, the second operation, and the third operation in the first type of time unit; the terminal-side device performs the third operation in the second type of time unit; the terminal-side device performs the third operation in the third type of time unit. The second operation is performed in the time unit of the type; the terminal-side device performs the second operation and the third operation in the time unit of the fourth type; the device on the terminal side does not perform the first operation, the second operation, and the third operation in the time unit of the fifth type operate. Table 1 is just an example, there may also be other types of time units, and there may be other types of correspondence between the types of time units and the operations performed by the terminal-side device, which will not be illustrated here one by one.

In this implementation manner, the first indication information may be a bitmap, and by indicating the type of each time unit through the bitmap, the operation performed by the terminal-side device in each time unit may be indicated.

In a possible implementation, if there is only one type of time unit or two types of time units, a bitmap can be used to indicate the position and type of the time unit, for example, "0" in the bitmap indicates the first type Time unit, "1" indicates the second type of time unit, or "1" indicates the first type of time unit, and "0" indicates the second type of time unit.

For example, as shown in Figure 4, a transmission time unit includes 14 symbols, respectively symbol 0 to symbol 13, which can be divided into 4 time units, respectively time unit 1 to time unit 4, and time unit 1 includes symbols 0 to symbol 3, time unit 2 includes symbols 4 to 7, time unit 3 includes symbols 8 to 10, and time unit 4 includes symbols 11 to 13. If only two types of time units are stored: the first type of time unit and the second type of time unit. Referring to FIG. 4, as shown in FIG. 5, when the time unit 1 to the time unit 4 respectively correspond to the first type of time unit, the second type of time unit, the first type of time unit, and the second type of time unit, the first indication information can be It includes 14 bits. When the first indication information indicates the time unit described above, the value may be as follows: 0000 1111 000 111. Wherein, a bit with a value of 0 represents a symbol included in the first type of time unit; a bit with a value of 1 represents a symbol included in a second type of time unit.

In another possible implementation manner, if more than two types of time units are included, each type of time unit corresponds to a bitmap, respectively indicating which symbols are included in one transmission time unit of this type of time unit.

For example, if there are the following four types: the first type of time unit, perform the first operation and the third operation; the second type of time unit, perform the second operation and the third operation; the third type of time unit, perform the first Operation, second operation and third operation; the fourth type of time unit does not execute the first operation, second operation and third operation. As shown in Figure 4, a transmission time unit includes 14 symbols, respectively symbol 0 to symbol 13, which can be divided into 4 time units, respectively time unit 1 to time unit 4, and time unit 1 includes symbol 0 to symbol 3 , time unit 2 includes symbols 4 to 7 , time unit 3 includes symbols 8 to 10 , and time unit 4 includes symbols 11 to 13 . When the time unit 1 to the time unit 4 respectively correspond to the first type of time unit, the third type of time unit, the second type of time unit, and the fourth type of time unit, and the first indication information is used for indication, the first indication information may include 4 Row bits, each row of bits includes 14 bits, as follows: first row: 1111 0000 000 000; second row: 0000 0000 111 000; third row: 0000 1111 000 000; second row: 0000 0000 000 111. Among them, in the first line, the bit with a value of 1 represents the symbol occupied by the first type of time unit; in the second line, the bit with a value of 1 represents the symbol occupied by the second type of time unit; in the third line , the bit with a value of 1 represents the symbol occupied by the third type of time unit; in the fourth row, the bit with a value of 1 represents the symbol occupied by the fourth type of time unit.

It should be noted that, among the N time units, the position of each time unit in the transmission time unit and the number of symbols included may be preset. Combining the above example, two bits can be used to indicate the above four types, and 00, 01, 10, and 11 indicate the first type of time unit to the fourth type of time unit in sequence. When time unit 1 to time unit 4 respectively correspond to the first type of time unit, the third type of time unit, the second type of time unit, and the fourth type of time unit, and the first indication information is used for indication, the bit of the first indication information should be Bitmap can be 00 10 01 11.

In the third implementation, multiple patterns can also be preset, and each pattern indicates the type of each time unit, or indicates the operation performed by the terminal-side device in each time unit, such as performing the first operation , at least one of the second operation and the third operation, or not perform the first operation, the second operation and the third operation. Each pattern may also indicate the position of each time unit in the transmission time unit and the number of symbols included. Of course, the position of each time unit in the transmission time unit and the number of symbols included may also be preset and do not need to be indicated.

In this implementation manner, the first indication information may be an index value, and the index value corresponds to a preset pattern.

For example, if only two types of time units are stored: the first type of time unit and the second type of time unit, denoted as A and B respectively, the first type of time unit includes 3 consecutive OFDM symbols, and the second type of time unit includes Two consecutive OFDM symbols, when a transmission time unit includes 14 OFDM symbols, different combinations of these two types of time units in one transmission time unit can form the patterns shown in Table 2.

Table 2

index value pattern 0 BBABBA 1 ABBABBB 2 BABBAB

In Table 2, the index value is 0, and the corresponding pattern includes 6 time units, namely time unit 1 to time unit 6, and the corresponding time unit types are: the second type of time unit, the second type of time unit, The first type of time unit, the second type of time unit, the second type of time unit, the first type of time unit. When the 14 OFDM symbols included in the transmission time unit are OFDM symbol 1 to OFDM symbol 14, time unit 1 includes OFDM symbol 1 to OFDM symbol 2, time unit 2 includes OFDM symbol 3 to OFDM symbol 4, and time unit 3 includes OFDM symbols 5 to OFDM symbol 7, time unit 4 includes OFDM symbol 8 to OFDM symbol 9, time unit 5 includes OFDM symbol 10 to OFDM symbol 11, and time unit 6 includes OFDM symbol 12 to OFDM symbol 14. For the meanings of the patterns corresponding to the index value 1 and the index value 2, you can refer to the description here, and will not repeat them here. With reference to Table 1, the terminal-side device can perform the first operation, the second operation, and the third operation in the first type of time unit, and can perform the third operation in the second type of time unit.

In this case, when the first indication information received by the terminal-side device is 0, it can be determined to perform the third operation in time unit 1, time unit 2, time unit 4, and time unit 5; Unit 6 performs the first operation, the second operation and the third operation. Other situations will not be repeated.

In a possible implementation manner, the first indication information may also be a specific position or time unit or multiple specific positions or multiple time units in a time slot specified in the protocol. For example, the protocol stipulates that the first operation, the second operation and the third operation are performed only in the first three symbols, or the protocol stipulates that the first operation, the second operation and the third operation are performed in the time unit where the public search space is located, or the protocol stipulates that The first operation, the second operation, and the third operation are performed at the time unit where the search space set based on slot scheduling is configured, or the protocol stipulates that the first operation is performed at the time unit where the search space set based on non-slot scheduling is configured. operation, second operation, and third operation.

In a possible implementation manner, the first indication information may also simultaneously indicate an operation performed by the terminal-side device in each time unit of the multiple transmission time units. For example, in combination with the above description, if only two types of time units are stored: the first type of time unit and the second type of time unit, denoted as A and B respectively, the first type of time unit includes 3 consecutive OFDM symbols, and the second type of time unit The second type of time unit includes 2 consecutive OFDM symbols. When a transmission time unit includes 14 OFDM symbols, the different combinations of these two types of time units in 4 or 5 transmission time units can be formed as shown in Table 3. picture of.

table 3

In a possible implementation, a table or at least one pattern can be predefined, and each row in the predefined table indicates possible combinations of different types of time units and corresponding positions within a transmission time unit; at least A pattern represents possible combinations of different types of time units and corresponding positions within one transmission time unit. The network-side device then configures a transmission table for the terminal-side device. Each row of this transmission table represents a combination of several possible transmission time units of different types of time units. The elements of the combination come from a predefined table or at least one pattern. At least 1 line of configuration.

For example, the protocol predefines a table 4, which contains at least one row, and each row defines the corresponding positions of different types of time units within a transmission time unit, assuming that two different time unit combination patterns are defined . The network-side device configures a table 5 for the terminal-side device through high-level signaling, and each row of this table 5 defines possible combinations of different types of time units in at least a plurality of slots. The network-side device sends an index value to the terminal-side device through high-level signaling or physical layer signaling to indicate the combination of different types of time units in the multiple transmission time units of the terminal-side device. According to the index value, the terminal-side device performs a table lookup in Table 5 configured by the network-side device to determine the combination patterns of different types of time units of multiple transmission time units.

Table 4

index value pattern 0 BBABBA,ABBABB 1 ABBABBA,BBABBA

table 5

index value pattern 0 000000000000000 1 111111111111111 2 101010101010101 3 010101010101010

It should be noted that, in the embodiment of the present application, the first indication information may only indicate the terminal operations performed by the terminal-side device in a part of the N time units, and the terminal operations performed in the other part of the time units may be implicitly indicated . For example, if there are only two types of time units: the first type of time unit and the second type of time unit, the network side device only indicates the position of the first type of time unit, and the remaining symbols are the positions of the second type of time unit. Similarly, there are only three types of time units, the first type of time unit, the second type of time unit, and the third type of time unit. The network side device may only indicate the position of the second type of time unit, the first type of time unit is the symbol before the position of the second type of time unit, and the third type of time unit is the symbol after the position of the second type of time unit.

In another possible implementation, the terminal operation corresponding to the terminal-side device in the first time unit may not be indicated by the network-side device through the first indication information, which may be the position of the time unit preset in the protocol and the time unit type correspondence. The terminal-side device may determine the type of the time unit according to the position of the time unit, so as to know the terminal operations performed in the time unit according to the preset correspondence relationship.

Therefore, optionally, the network side device indicates the terminal operation corresponding to each time unit in the first indication information.

In the above implementation manner, the first indication information may be indicated at the granularity of one transmission time unit, that is, the first indication information indicates not a specific transmission time unit, and in N time units of each transmission time unit , the terminal-side device can perform corresponding operations according to the first indication information. In the embodiment of this application, the network side device may also determine multiple consecutive transmission time units, and determine the operation that the terminal side device needs to perform in each time unit of each transmission time unit of the multiple continuous transmission time units , and indicate through the second indication information.

Because at least one of the period, offset and duration of multiple search space sets configured by the network side device may be different, the frequency of collision of multiple search space sets within the same transmission time unit will also be different, so that Different PDCCH candidate patterns are formed. For example, take the transmission time unit as a slot as an example, as shown in FIG. 6 . The cycle of CSSset#0 is 4, that is, it appears once every 4 slots, the cycle of CSS set#1 is 10, that is, it appears once every 10 slots, and the cycle of USS set#1 is 2, that is, it appears every 2 slots. times, the period of USS set#2 is 1, that is, it appears once per slot. There are 5 different patterns that different search space sets collide with the same slot, that is, 5 different PDCCH candidate patterns. The protocol limits the number of PDCCH candidate patterns configured by the network side device to no more than N, or limits the number of candidate patterns that need to implement a PDCCH mapping rule (mapping rule) to no more than M, where M may be less than or equal to N. Wherein, executing the PDCCH mapping rule (mapping rule) may refer to executing the zeroth operation to the third operation.

Possibly, the network-side device can notify the terminal-side device of N different PDCCH candidates through a bitmap or a predefined or high-level signaling configuration table plus a semi-static configuration of the network-side device or a group common indication The PDCCH mapping rule needs to be implemented on the one pattern in the pattern.

Possibly, in this method, the network-side device does not need to send any instruction information to the terminal-side device, and the network-side device ensures that the allocation will not exceed the processing capability of the terminal-side device, for example, the storage capacity and computing capability of the terminal-side device will not be exceeded. . Alternatively, the terminal-side device reports a capability to notify the network-side device that it can process several different PDCCH candidate patterns, and the network-side device configures the terminal-side device accordingly according to the capability reported by the terminal-side device, ensuring that the processing complexity is not It will exceed the reporting capability of the terminal-side device.

For example, the number of PDCCH candidate patterns configured on the network side device is 5, and the number of PDCCH candidate patterns that need to be configured with the PDCCH mapping rule is 3, that is, PDCCH candidate patterns 1, 3, and 5 need to be slots of the PDCCH mapping rule. The remaining slot network side devices ensure that the CCEs of the configured PDCCH candidates do not overlap, and may only need to do operation 3 or not.

In FIG. 6 , the network-side device configures possible PDCCH candidate patterns for all slots of the terminal-side device. Through the above method, during RRC configuration/reconfiguration, there is a period of transition time that can be used to calculate the PDCCH mapping rule, and then store the calculation result. The terminal-side device does not need to perform PDCCH mapping rule slot by slot to select and map PDCCH alternatives, which can reduce the processing complexity of the terminal-side device, that is, the terminal-side device only performs the zeroth operation to the third operation once in the first cycle, Other cycles only need to read the results executed in the first cycle.

As shown in FIG. 7 , a schematic structural diagram of a communication device is provided according to an embodiment of the present application. The communication apparatus may be used to execute the actions of the terminal-side device in the foregoing method embodiments, and the communication apparatus 700 includes: a transceiver unit 701 and a processing unit 702 .

a processing unit 702, configured to determine first indication information;

The first indication information is used to indicate N time units and is used to instruct the terminal-side device to perform at least one of the first operation, the second operation and the third operation in each time unit of the N time units , or do not perform the first operation, the second operation, and the third operation, the N time units belong to the same transmission time unit, and each time unit in the N time units includes at least one symbol , N is an integer greater than 0; the first operation is used to determine the blind detection times of the physical downlink control channel PDCCH blindly detected in the current time unit; the second operation is used to determine the PDCCH channel in the current time unit Estimating the number of non-overlapping control channel element CCEs used; the third operation is used to determine whether the number of blind detections for blindly detecting the PDCCH in the current time unit is greater than the maximum number of blind detections corresponding to the current time unit, and/or, It is used to determine whether the number of non-overlapping CCEs in the current time unit is greater than the maximum number of CCEs corresponding to the current time unit;

The transceiving unit 701 is configured to send the first indication information to the terminal-side device.

In a possible implementation manner, the first indication information includes L bits, and at least one bit in the L bits uniquely corresponds to the first time unit in the N time units; L is greater than or an integer equal to N;

The different bit state values of the at least one bit corresponding to the first time unit indicate the corresponding terminal operation of the terminal-side device in the first time unit.

In a possible implementation manner, the first indication information is an index value, and a pattern corresponding to the index value indicates the position of the N time units in the transmission time unit, and indicates the first The corresponding terminal operation described in the time unit.

FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device shown in FIG. 8 may be an implementation manner of a hardware circuit of the communication device shown in FIG. 7 . The communication device may be applicable to the flow chart shown in FIG. 2 to execute the functions of the network device in the foregoing method embodiments. For ease of illustration, FIG. 8 only shows the main components of the communication device. Optionally, the communication device may be a network device, or a device in the network device, such as a chip or a chip system, wherein the chip system includes at least one chip, and the chip system may also include other circuit structures and/or discrete devices. Optionally, taking the communication device as a network device as an example, as shown in FIG. 8 , a communication device 800 includes a processor 801, a memory 802, a transceiver 803, an antenna 804, and the like.

a processor 801, configured to determine first indication information;

The first indication information is used to indicate N time units and is used to instruct the terminal-side device to perform at least one of the first operation, the second operation and the third operation in each time unit of the N time units , or do not perform the first operation, the second operation, and the third operation, the N time units belong to the same transmission time unit, and each time unit in the N time units includes at least one symbol , N is an integer greater than 0; the first operation is used to determine the blind detection times of the physical downlink control channel PDCCH blindly detected in the current time unit; the second operation is used to determine the PDCCH channel in the current time unit Estimating the number of non-overlapping control channel element CCEs used; the third operation is used to determine whether the number of blind detections for blindly detecting the PDCCH in the current time unit is greater than the maximum number of blind detections corresponding to the current time unit, and/or, It is used to determine whether the number of non-overlapping CCEs in the current time unit is greater than the maximum number of CCEs corresponding to the current time unit;

A transceiver 803, configured to send the first indication information to the terminal-side device.

In a possible implementation manner, the first indication information includes L bits, and at least one bit in the L bits uniquely corresponds to the first time unit in the N time units; L is greater than or an integer equal to N;

The different bit state values of the at least one bit corresponding to the first time unit indicate the corresponding terminal operation of the terminal-side device in the first time unit.

In a possible implementation manner, the first indication information is an index value, and a pattern corresponding to the index value indicates the position of the N time units in the transmission time unit, and indicates the first The corresponding terminal operation described in the time unit.

As shown in FIG. 9 , a schematic structural diagram of a communication device is provided according to an embodiment of the present application. The communication apparatus may be used to execute the actions of the terminal-side device in the foregoing method embodiments, and the communication apparatus 900 includes: a transceiver unit 901 and a processing unit 902 .

a transceiver unit 901, configured to receive first indication information from a network side device;

The first indication information is used to indicate at least one time unit of N time units; wherein, any one of the N time units is a first time unit, and one of the first time units of the N time units corresponds to a class Terminal operation, the terminal operation is prohibited from performing the first operation, the second operation, and the third operation, or performing at least one of the first operation, the second operation, and the third operation, and the N time units belong to the same Transmission time unit, any time unit in the N time units includes at least one symbol, and N is an integer greater than 0;

Wherein, the first operation is used to determine the number of times of blind detection of the physical downlink control channel PDCCH in the current time unit; the second operation is used to determine the non-overlapping channel used for channel estimation of the PDCCH in the current time unit The number of control channel element CCEs; the third operation is used to determine whether the number of blind detections of the PDCCH blindly detected in the current time unit is greater than the maximum number of blind detections corresponding to the current time unit, and/or used to determine whether the number of blind detections in the current time unit Whether the number of non-overlapping CCEs in the unit is greater than the maximum number of CCEs corresponding to the current time unit;

The processing unit 902 is configured to determine the N time units according to the first indication information, and execute the corresponding terminal operation in a first time unit of the N time units.

In a possible design, when the corresponding terminal operation includes the first operation, the terminal-side device performing the first operation in the first time unit according to the first indication information includes:

The terminal-side device determines the number of times of blind detection of the PDCCH among the M PDCCH candidates in the first time unit according to the first preset condition; For the first time unit configuration, M is an integer greater than 0;

Wherein, if any two PDCCH candidates among the M PDCCH candidates satisfy the first preset condition, then the any two PDCCH candidates correspond to one blind detection times, otherwise the any two PDCCH candidates correspond to two blind detection times frequency.

In a possible design, when the corresponding terminal operation includes the second operation, the terminal-side device performing the second operation in the first time unit according to the first indication information includes:

The terminal-side device determines the number of non-overlapping CCEs included in the M PDCCH candidates located in the first time unit according to the second preset condition and the third preset condition; the M PDCCH candidates are the network-side The device is configured in the first time unit, M is an integer greater than 0;

Wherein, for any two CCEs in the M PDCCH candidates, if the two CCEs are from different PDCCH candidates, if the two CCEs satisfy the second preset condition and the first For at least one of the three preset conditions, the any two CCEs are two non-overlapping CCEs; otherwise, the any two CCEs are one non-overlapping CCE.

In a possible design, for a first time unit in the N time units, when the first indication information is used to instruct the terminal-side device to perform the third operation in the first time unit, The terminal-side device performing the third operation in the first time unit according to the first indication information includes:

The terminal-side device performs the following operations on the i-th search space set in the P search space sets according to the priority order of the P search space sets configured by the network-side device:

The terminal-side device judges whether the number of blind detections corresponding to the PDCCH candidates in the first time unit among the PDCCH candidates included in the first search space set to the i-th search space set is greater than the first If the maximum number of times of blind detection corresponding to a time unit is greater than, it is determined not to blindly detect the PDCCH in the ith search space set; i is an integer greater than or equal to 1 and less than or equal to P;

Alternatively, the terminal-side device determines whether the number of non-overlapping CCEs included in the PDCCH candidates in the first time unit among the PDCCH candidates included in the first search space set to the i-th search space set is greater than the maximum number of CCEs corresponding to the first time unit, if greater, determine not to blindly detect the PDCCH in the ith search space set;

Alternatively, the terminal-side device determines that among the PDCCH candidates included in the first search space set to the i-th search space set, the number of blind detections corresponding to the PDCCH candidates located in the first time unit is less than or equal to The maximum number of blind detection times corresponding to the first time unit, and the terminal-side device determines that the first search space set is included in the PDCCH candidates included in the i-th search space set, and is located in the first time unit If the number of non-overlapping CCEs included in the PDCCH candidates is less than or equal to the maximum number of CCEs corresponding to the first time unit, it is determined to blindly detect the PDCCH in the ith search space set.

In a possible implementation manner, the first indication information includes L bits, and at least one bit in the L bits uniquely corresponds to the first time unit in the N time units; L is greater than or an integer equal to N;

The different bit state values of the at least one bit corresponding to the first time unit indicate the corresponding terminal operation of the terminal-side device in the first time unit.

In a possible implementation manner, the first indication information is an index value, and a pattern corresponding to the index value indicates the position of the N time units in the transmission time unit, and indicates the first The corresponding terminal operation described in the time unit.

FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device shown in FIG. 10 may be a hardware circuit implementation manner of the communication device shown in FIG. 9 . The communication apparatus may be applicable to the flow chart shown in FIG. 2 to execute the functions of the terminal-side device in the foregoing method embodiments. For ease of illustration, FIG. 10 only shows the main components of the communication device. Optionally, the communication device may be a terminal-side device, or a device in a terminal-side device, such as a chip or a chip system, where the chip system includes at least one chip, and the chip system may also include other circuit structures and /or discrete devices. Optionally, taking the communication device as a network device as an example, as shown in FIG. The processor 1001 is mainly used to process communication protocols and communication data, control the entire wireless communication device, execute software programs, and process data of the software programs, for example, to support the wireless communication device to execute the methods described in the above method embodiments. action etc. The memory 1002 is mainly used to store software programs and data. The transceiver 1003 is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna 1004 is mainly used for sending and receiving radio frequency signals in the form of electromagnetic waves. The input and output device 1005, such as a touch screen, a display screen, and a keyboard, is mainly used to receive data input by a user and output data to the user.

a transceiver 1003, configured to receive first indication information from the network side device;

The first indication information is used to indicate N time units and is used to instruct the terminal-side device to perform at least one of the first operation, the second operation and the third operation in each time unit of the N time units , or do not perform the first operation, the second operation, and the third operation, the N time units belong to the same transmission time unit, and each time unit in the N time units includes at least one symbol , N is an integer greater than 0; the first operation is used to determine the blind detection times of the physical downlink control channel PDCCH blindly detected in the current time unit; the second operation is used to determine the PDCCH channel in the current time unit Estimating the number of non-overlapping control channel element CCEs used; the third operation is used to determine whether the number of blind detections for blindly detecting the PDCCH in the current time unit is greater than the maximum number of blind detections corresponding to the current time unit, and/or, It is used to determine whether the number of non-overlapping CCEs in the current time unit is greater than the maximum number of CCEs corresponding to the current time unit;

The processor 1001 is configured to execute the operation indicated by the first indication information in each time unit of the N time units.

In a possible design, when the corresponding terminal operation includes the first operation, the processor 1001 is specifically configured to:

Determine the number of times of blind detection of the PDCCH in the M PDCCH candidates in the first time unit according to the first preset condition; the M PDCCH candidates are configured by the network side device in the first time unit , M is an integer greater than 0;

Wherein, if any two PDCCH candidates among the M PDCCH candidates satisfy the first preset condition, then the any two PDCCH candidates correspond to one blind detection times, otherwise the any two PDCCH candidates correspond to two blind detection times frequency.

In a possible design, when the corresponding terminal operation includes the second operation, the processor 1001 is specifically configured to:

The terminal-side device determines the number of non-overlapping CCEs included in the M PDCCH candidates located in the first time unit according to the second preset condition and the third preset condition; the M PDCCH candidates are the network-side The device is configured in the first time unit, M is an integer greater than 0;

Wherein, for any two CCEs in the M PDCCH candidates, if the two CCEs are from different PDCCH candidates, if the two CCEs satisfy the second preset condition and the first For at least one of the three preset conditions, the any two CCEs are two non-overlapping CCEs; otherwise, the any two CCEs are one non-overlapping CCE.

In a possible design, for a first time unit in the N time units, when the first indication information is used to instruct the terminal-side device to perform the third operation in the first time unit, The processor 1001 is specifically used for:

According to the priority order of the P search space sets configured by the network side device, for the i-th search space set in the P search space sets, perform the following operations:

Judging whether the number of times of blind detection corresponding to the PDCCH candidate located in the first time unit among the PDCCH candidates included in the first search space set to the i-th search space set is greater than that corresponding to the first time unit If the maximum number of times of blind detection is greater than, it is determined not to blindly detect the PDCCH in the ith search space set; i is an integer greater than or equal to 1 and less than or equal to P;

Or, judging whether the number of non-overlapping CCEs included in the PDCCH candidates in the first time unit among the PDCCH candidates included in the first search space set to the i-th search space set is greater than the first If the maximum number of CCEs corresponding to the time unit is greater than, it is determined not to blindly detect the PDCCH in the ith search space set;

Alternatively, it is determined that among the PDCCH candidates included in the first search space set to the i-th search space set, the number of blind detections corresponding to the PDCCH candidates located in the first time unit is less than or equal to the first time The maximum number of times of blind detection corresponding to the unit, and the terminal-side device determines the first search space set to the PDCCH candidates included in the i-th search space set, and the PDCCH candidates located in the first time unit include If the number of non-overlapping CCEs is less than or equal to the maximum number of CCEs corresponding to the first time unit, it is determined to blindly detect the PDCCH in the ith search space set.

In a possible implementation manner, the first indication information includes L bits, and at least one bit in the L bits uniquely corresponds to the first time unit in the N time units; L is greater than or an integer equal to N;

The different bit state values of the at least one bit corresponding to the first time unit indicate the corresponding terminal operation of the terminal-side device in the first time unit.

In a possible implementation manner, the first indication information is an index value, and a pattern corresponding to the index value indicates the position of the N time units in the transmission time unit, and indicates the first The corresponding terminal operation described in the time unit.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

Apparently, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (35)

1. A blind detection method, characterized in that, comprising: The terminal-side device receives first indication information from the network-side device; The first indication information is used to determine at least one time unit of N time units; wherein, one time unit in the N time units is a first time unit, and the first time unit corresponds to a type of terminal operation, and the A type of terminal operation is not to perform the first operation, the second operation, and the third operation, the N time units belong to the same transmission time unit, each time unit in the N time units includes at least one symbol, and N is an integer greater than 0; Wherein, the first operation is used to determine the number of times of blind detection of the physical downlink control channel PDCCH in the current time unit; the second operation is used to determine the non-overlapping channel used for channel estimation of the PDCCH in the current time unit The number of control channel element CCEs; the third operation is used to determine whether the number of blind detections of the PDCCH blindly detected in the current time unit is greater than the maximum number of blind detections corresponding to the current time unit, and/or used to determine whether the number of blind detections in the current time unit Whether the number of non-overlapping CCEs in the unit is greater than the maximum number of CCEs corresponding to the current time unit; The terminal-side device determines the N time units according to the first indication information, and executes the corresponding type of terminal operation in a first time unit of the N time units. 2. The method according to claim 1, characterized in that the method further comprises: The terminal-side device executes another type of terminal operation in another time unit of the N time units, and the other type of terminal operation includes the first operation, the second operation, and the third At least one of the operations. 3. The method according to claim 1 or 2, characterized in that the method further comprises: The terminal-side device determines the type of terminal operation corresponding to the first time unit according to the position of the first time unit in the N time units. 4. The method according to claim 2, wherein the other type of terminal operation includes the first operation, and the terminal-side device performs the first operation in the another time unit, including : The terminal side device determines the blind detection times of the PDCCH in the M PDCCH candidates of the other time unit according to the first preset condition; the M PDCCH candidates are the network side device in the Another time unit configuration, M is an integer greater than 0; Wherein, if any two PDCCH candidates among the M PDCCH candidates satisfy the first preset condition, then the any two PDCCH candidates correspond to one blind detection times, otherwise the any two PDCCH candidates correspond to two blind detection times frequency. 5. The method according to claim 4, wherein the first preset condition comprises the following: The CCE sets corresponding to the two PDCCH candidates are the same; The scrambling code sequences of the two PDCCH candidates are the same; The two PDCCH candidates come from the same control resource set CORESET; The downlink control information DCI blindly detected by the terminal side device in the two PDCCH candidates has the same length. 6. The method according to claim 1, 2 or 5, wherein the other type of terminal operation includes the second operation, and the terminal-side device executes the second operation in the other time unit Two operations, including: The terminal-side device determines the number of non-overlapping CCEs included in the M PDCCH candidates located in the other time unit according to the second preset condition and the third preset condition; the M PDCCH candidates are the network-side The device is configured in the other time unit, M is an integer greater than 0; Wherein, for any two CCEs in the M PDCCH candidates, if the two CCEs are from different PDCCH candidates, if the two CCEs satisfy the second preset condition and the first For at least one of the three preset conditions, the any two CCEs are two non-overlapping CCEs; otherwise, the any two CCEs are one non-overlapping CCE. 7. The method according to claim 6, wherein the second preset condition is that the two CCEs come from different control resource sets CORESET; The third preset condition is that the terminal-side device blindly detects the PDCCH at different times in the two PDCCH candidates corresponding to the two CCEs. 8. The method according to claim 1 or 2 or 5 or 7, wherein the other type of terminal operation includes the third operation, and the terminal-side device performs the operation in the another time unit The third operation described above includes: The terminal-side device performs the following operations on the i-th search space set in the P search space sets according to the priority order of the P search space sets configured by the network-side device: The terminal side device judges whether the number of blind detections corresponding to the PDCCH candidates in the other time unit among the PDCCH candidates included in the first search space set to the i-th search space set is greater than the other If the maximum number of times of blind detection corresponding to a time unit is greater than, it is determined not to blindly detect the PDCCH in the ith search space set; i is an integer greater than or equal to 1 and less than or equal to P; Alternatively, the terminal-side device determines whether the number of non-overlapping CCEs included in the PDCCH candidates in the other time unit among the PDCCH candidates included in the first search space set to the i-th search space set is greater than the maximum number of CCEs corresponding to the other time unit, if greater, then determine not to blindly detect the PDCCH in the ith search space set; Alternatively, the terminal-side device determines that among the PDCCH candidates included in the first search space set to the i-th search space set, the number of blind detections corresponding to the PDCCH candidates located in the other time unit is less than or equal to The maximum number of blind detection times corresponding to the other time unit, and the terminal-side device determines that the first search space set is included in the PDCCH candidates included in the i-th search space set, and is located in the other time unit If the number of non-overlapping CCEs included in the PDCCH candidates is less than or equal to the maximum number of CCEs corresponding to the other time unit, it is determined to blindly detect the PDCCH in the ith search space set. 9. The method according to claim 1 or 2 or 5 or 7, wherein the first indication information includes L bits, at least one bit of the L bits is related to the number of bits in the N time units The first time unit uniquely corresponds to; L is an integer greater than or equal to N; The bit state value of the at least one bit corresponding to the first time unit indicates that the terminal-side device operates on the type of terminal corresponding to the first time unit. 10. The method according to claim 1, 2, 5, or 7, wherein the first indication information is an index value, and the pattern corresponding to the index value indicates that the N time units are in the transmission A position in a time unit, and indicating the type of terminal operation corresponding to the first time unit. 11. The method according to claim 1 or 2 or 5 or 7, wherein each time unit in the N time units is a new radio span NR span; the transmission time unit is a new radio time slot NR slot. 12. A blind detection method, characterized in that, comprising: The network side device determines the first indication information; The first indication information is used to determine at least one time unit of N time units; wherein, one time unit in the N time units is a first time unit, and the first time unit corresponds to a type of terminal operation, and the A type of terminal operation is not to perform the first operation, the second operation, and the third operation, the N time units belong to the same transmission time unit, each time unit in the N time units includes at least one symbol, and N is an integer greater than 0; Wherein, the first operation is used to determine the number of times of blind detection of the physical downlink control channel PDCCH in the current time unit; the second operation is used to determine the non-overlapping channel used for channel estimation of the PDCCH in the current time unit The number of control channel element CCEs; the third operation is used to determine whether the number of blind detections of the PDCCH blindly detected in the current time unit is greater than the maximum number of blind detections corresponding to the current time unit, and/or used to determine whether the number of blind detections in the current time unit Whether the number of non-overlapping CCEs in the unit is greater than the maximum number of CCEs corresponding to the current time unit; The network-side device sends the first indication information to the terminal-side device. 13. The method of claim 12, further comprising: The network side device determines another type of terminal operation corresponding to another time unit among the N time units, where the other type of terminal operation includes the first operation, the second operation, and the third At least one of the operations. 14. The method according to claim 12 or 13, further comprising: The network side device determines the type of terminal operation corresponding to the first time unit according to the position of the first time unit in the N time units. 15. The method according to claim 12 or 13, wherein the first indication information includes L bits, at least one bit of the L bits is related to the first bit in the N time units One time unit uniquely corresponds; L is an integer greater than or equal to N; The bit state value of the at least one bit corresponding to the first time unit indicates that the terminal-side device operates on the type of terminal corresponding to the first time unit. 16. The method according to claim 12 or 13, wherein the first indication information is an index value, and the pattern corresponding to the index value indicates the number of N time units in the transmission time unit location, and indicate the type of terminal operation corresponding to the first time unit. 17. The method according to claim 12 or 13, wherein each of the N time units is a new radio span NR span; and the transmission time unit is a new radio NR slot. 18. A blind detection device, characterized in that it comprises: a transceiver unit, configured to receive first indication information from a network side device; The first indication information is used to determine at least one time unit of N time units; wherein, one time unit in the N time units is a first time unit, and the first time unit corresponds to a type of terminal operation, and the A type of terminal operation is not to perform the first operation, the second operation, and the third operation, the N time units belong to the same transmission time unit, each time unit in the N time units includes at least one symbol, and N is an integer greater than 0; Wherein, the first operation is used to determine the number of times of blind detection of the physical downlink control channel PDCCH in the current time unit; the second operation is used to determine the non-overlapping channel used for channel estimation of the PDCCH in the current time unit The number of control channel element CCEs; the third operation is used to determine whether the number of blind detections of the PDCCH blindly detected in the current time unit is greater than the maximum number of blind detections corresponding to the current time unit, and/or used to determine whether the number of blind detections in the current time unit Whether the number of non-overlapping CCEs in the unit is greater than the maximum number of CCEs corresponding to the current time unit; A processing unit, configured to determine the N time units according to the first indication information, and execute the type of terminal operation in the first time unit of the N time units. 19. The device according to claim 18, wherein the processing unit is further configured to execute another type of terminal operation in another time unit of the N time units, and the other type of terminal operation At least one operation among the first operation, the second operation and the third operation is included. 20. The device according to claim 18 or 19, wherein the processing unit is further configured to determine the corresponding first time unit according to the position of the first time unit among the N time units. Describes a class of terminal operations. 21. The device according to claim 19, wherein the other type of terminal operation includes the first operation, and the processing unit is specifically configured to: Determine the number of times of blind detection of the PDCCH in the M PDCCH candidates of the other time unit according to the first preset condition; the M PDCCH candidates are configured by the network side device in the another time unit , M is an integer greater than 0; Wherein, if any two PDCCH candidates among the M PDCCH candidates satisfy the first preset condition, then the any two PDCCH candidates correspond to one blind detection times, otherwise the any two PDCCH candidates correspond to two blind detection times frequency. 22. The device according to claim 21, wherein the other type of terminal operation includes the second operation, and the processing unit is specifically configured to: Determine the number of non-overlapping CCEs included in the M PDCCH candidates located in the other time unit according to the second preset condition and the third preset condition; the M PDCCH candidates are the network side equipment in the other time unit. One time unit configuration, M is an integer greater than 0; Wherein, for any two CCEs in the M PDCCH candidates, if the two CCEs are from different PDCCH candidates, if the two CCEs satisfy the second preset condition and the first For at least one of the three preset conditions, the any two CCEs are two non-overlapping CCEs; otherwise, the any two CCEs are one non-overlapping CCE. 23. The device according to claim 18 or 19, wherein the other type of terminal operation includes the third operation, and the processing unit is specifically configured to: According to the priority order of the P search space sets configured by the network side device, for the i-th search space set in the P search space sets, perform the following operations: Judging whether the number of times of blind detection corresponding to the PDCCH candidate located in the other time unit among the PDCCH candidates included in the first search space set to the i-th search space set is greater than that corresponding to the other time unit If the maximum number of times of blind detection is greater than, it is determined not to blindly detect the PDCCH in the ith search space set; i is an integer greater than or equal to 1 and less than or equal to P; Or, judging whether the number of non-overlapping CCEs included in the PDCCH candidates in the other time unit among the PDCCH candidates included in the first search space set to the i-th search space set is greater than the other If the maximum number of CCEs corresponding to the time unit is greater than, it is determined not to blindly detect the PDCCH in the ith search space set; Or, it is determined that among the PDCCH candidates included in the first search space set to the i-th search space set, the number of blind detections corresponding to the PDCCH candidates located in the other time unit is less than or equal to the other time The maximum number of times of blind detection corresponding to the unit, and the terminal-side device determines the first search space set to the PDCCH candidates included in the i-th search space set, and the PDCCH candidates located in the other time unit include If the number of non-overlapping CCEs is less than or equal to the maximum number of CCEs corresponding to the other time unit, it is determined to blindly detect the PDCCH in the ith search space set. 24. The device according to claim 18 or 19, wherein the first indication information includes L bits, at least one bit of the L bits is related to the first bit in the N time units One time unit uniquely corresponds; L is an integer greater than or equal to N; The bit state value of the at least one bit corresponding to the first time unit indicates that the terminal-side device operates on the type of terminal corresponding to the first time unit. 25. The device according to claim 18 or 19, wherein the first indication information is an index value, and the pattern corresponding to the index value indicates the number of N time units in the transmission time unit location, and indicate the corresponding type of terminal operation in the first time unit. 26. The device according to claim 18 or 19, wherein each of the N time units is a new radio span NR span; and the transmission time unit is a new radio time slot NR slot. 27. A blind detection device, characterized in that it comprises: a processing unit, configured to determine first indication information; The first indication information is used to determine at least one time unit of N time units; wherein, one time unit in the N time units is a first time unit, and the first time unit corresponds to a type of terminal operation, so The operation of the above-mentioned type of terminal is not to perform the first operation, the second operation and the third operation, the N time units belong to the same transmission time unit, each time unit in the N time units includes at least one symbol, N is an integer greater than 0; Wherein, the first operation is used to determine the number of times of blind detection of the physical downlink control channel PDCCH in the current time unit; the second operation is used to determine the non-overlapping channel used for channel estimation of the PDCCH in the current time unit The number of control channel element CCEs; the third operation is used to determine whether the number of blind detections of the PDCCH blindly detected in the current time unit is greater than the maximum number of blind detections corresponding to the current time unit, and/or used to determine whether the number of blind detections in the current time unit Whether the number of non-overlapping CCEs in the unit is greater than the maximum number of CCEs corresponding to the current time unit; A transceiving unit, configured to send the first indication information to the terminal side device. 28. The device according to claim 27, wherein the processing unit is further configured to determine another type of terminal operation corresponding to another time unit among the N time units, and the other type of terminal operation At least one operation among the first operation, the second operation and the third operation is included. 29. The device according to claim 27 or 28, wherein the processing unit is further configured to determine the corresponding first time unit according to the position of the first time unit among the N time units. Describes a class of terminal operations. 30. The device according to claim 27 or 28, wherein the first indication information includes L bits, at least one bit of the L bits is related to the first bit in the N time units One time unit uniquely corresponds; L is an integer greater than or equal to N; The bit state value of the at least one bit corresponding to the first time unit indicates that the terminal-side device operates on the corresponding type of terminal in the first time unit. 31. The device according to claim 27 or 28, wherein the first indication information is an index value, and the pattern corresponding to the index value indicates the number of N time units in the transmission time unit location, and indicate the corresponding type of terminal operation in the first time unit. 32. The device according to claim 27 or 28, wherein each of the N time units is a new radio span NR span; and the transmission time unit is a new radio NR slot. 33. A blind detection device, comprising a processor coupled to a memory: The processor is configured to execute computer programs or instructions stored in the memory, so that the device executes the method according to any one of claims 1 to 11. 34. A blind detection device, comprising a processor coupled to a memory: The processor is configured to execute computer programs or instructions stored in the memory, so that the device executes the method according to any one of claims 12-17. 35. A readable storage medium, characterized by including programs or instructions, when the programs or instructions are executed, the method according to any one of claims 1 to 17 is executed.

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