CN114629611A - DCI detection method and device, storage medium, and user equipment - Google Patents

Abstract

A DCI detection method and device, a storage medium and user equipment are provided, wherein the DCI detection method comprises the following steps: determining a length type of a current DRX period; in the active BWP of a serving cell, selecting a search space set group corresponding to the current length type from all search space set groups corresponding to the active BWP according to the length type of the current DRX period; and detecting DCI in the selected search space set group. The technical scheme of the invention can reduce the power consumption of the user equipment.

Description

DCI detection method and device, storage medium, and user equipment

technical field

The present invention relates to the technical field of communication processing, and in particular, to a DCI detection method and device, a storage medium, and user equipment.

Background technique

In a new radio access (New Radio, NR) system, the base station may configure one or more control resource sets (Control Resource Sets) of the user equipment (User Equipment, UE) on the activated bandwidth (Bandwidth Part, BWP) of the serving cell, CORESET) detects its own downlink control signaling (Downlink Control Information, DCI) according to its own radio network temporary identifier (Radio Network Temporary Identifier, RNTI). For example, for a scenario where carrier aggregation is not considered, the UE works on one carrier, that is, a serving cell. The base station can configure the UE to detect the search space in one or more CORESETs on the active BWP on the carrier, and the UE can detect the search space according to its own RNTI. It belongs to its own DCI, and then receives or uploads data according to the DCI. A serving cell can be configured with one or more BWPs, and BWPs can be active or inactive. The UE does not need to detect DCI on an inactive BWP.

The UE may be configured with one serving cell, or may be configured with multiple serving cells. For each serving cell, one or more control resource sets (Control Resource Set, CORESET) may be configured according to the BWP, and one or more search space sets (search space sets) may be configured on each CORESET. The network can configure the number of times, aggregation level, DCI format, etc., of the UE to detect DCI in each search space set, as well as the timing of detecting DCI, etc. The number of times the UE performs different DCI blind checks is closely related to the power consumption of the UE. Therefore, in the New Radio (NR) system, switching the search space set group (Search space set group) of the UE is considered to achieve the purpose of saving power.

However, in the prior art, the network needs to instruct the switching of each search space set group through signaling, which increases signaling overhead and increases the number of times the UE detects DCI, thereby increasing the power consumption of the UE.

SUMMARY OF THE INVENTION

The technical problem solved by the present invention is how to reduce the power consumption of the user equipment.

In order to solve the above technical problem, an embodiment of the present invention provides a DCI detection method. The DCI detection method includes: determining the length type of the current DRX cycle; A search space set corresponding to the current length type is selected from all search space sets corresponding to the BWP; DCI is detected in the selected search space set.

Optionally, the number of search space sets corresponding to the activated BWP is the same as the number of length types of the DRX cycle, and the length types of the current DRX cycle are sorted according to the cycle length of the current DRX cycle in all DRX cycles. Indicates that the selecting a search space set group from all search space sets according to the length type of the current DRX cycle includes: selecting all search space sets according to the detection times of each search space set in each time slot or each span Perform sorting; select a search space set group whose sorting is the same as the sorting of the current DRX cycle in all DRX cycles.

Optionally, the length types of the DRX cycle include DRX long cycle and DRX short cycle, the number of search space sets corresponding to the activated BWP is two, and the length type according to the current DRX cycle is in all search space sets. Selecting a search space set group includes: if the length type of the current DRX cycle is the DRX short cycle, then selecting a search space set with more detection times in each time slot or each span in the two search space set groups Group.

Optionally, the DCI detection method further includes: if scheduling is not obtained within a preset number of DRX short cycles, or scheduling is not obtained within a continuous preset number of DRX short cycles, selecting each of the two search space set groups. Each time slot or the search space group with fewer detection times per span, and continue to detect DCI in the selected search space group.

Optionally, the length types of the DRX cycle include DRX long cycle and DRX short cycle, the number of search space sets corresponding to the activated BWP is two, and the length type according to the current DRX cycle is in all search space sets. Selecting a search space set group includes: if the current DRX cycle is the DRX long cycle, selecting a search space set group with fewer detection times for each time slot or each span in the two search space sets.

Optionally, the length types of the DRX cycle include a DRX long cycle and a DRX short cycle. In the activated BWP, the DRX short cycle corresponds to two search space set groups, and the length type according to the current DRX cycle is Selecting a search space set among all search space sets includes: selecting a search space set with a larger number of detections in the corresponding two search space sets within an initial preset number of DRX short cycles; No scheduling is obtained within a number of DRX short cycles, or no scheduling is obtained within a preset number of consecutive DRX short cycles, or after the initial preset number of DRX short cycles, each of the corresponding two search space set groups is selected. A set of timeslots or search spaces with fewer detections per span.

Optionally, before the determining the length type of the current DRX cycle includes: receiving an association relationship between the length type of the DRX cycle sent by the network side and the search space set group; Selecting a search space set among all search space sets corresponding to the BWP includes: selecting a corresponding search space set according to the length type of the current DRX cycle and the association relationship.

Optionally, the detecting the DCI in the selected search space set group includes: detecting the DCI in the activated BWP of the serving cell; or, detecting the DCI in the activated BWP of all the serving cells.

The embodiment of the present invention further discloses a DCI detection device, the DCI detection device includes: a cycle type determination module, used to determine the length type of the current DRX cycle; a search space set group selection module, used in the activated BWP of the serving cell, According to the length type of the current DRX cycle, a search space set group corresponding to the current length type is selected from all the search space set groups corresponding to the activated BWP; the DCI detection module is used for detecting DCI in the selected search space set group.

The embodiment of the present invention further discloses a storage medium on which a computer program is stored, and when the computer program is run by a processor, the steps of the DCI detection method or the search space set switching method are executed.

An embodiment of the present invention further discloses a user equipment, including a memory and a processor, the memory stores a computer program that can be run on the processor, and the processor executes the DCI when the processor runs the computer program The steps of the detection method or the search space set switching method.

An embodiment of the present invention further discloses a base station, including a memory and a processor, the memory stores a computer program that can be run on the processor, and the processor executes the search space when the computer program runs. Set switching method steps.

Compared with the prior art, the technical solutions of the embodiments of the present invention have the following beneficial effects:

In the technical solution of the present invention, when detecting DCI, the user equipment can select a search space set group according to the length type of the current DRX cycle for detecting DCI. In the technical solution of the present invention, the user equipment directly selects the search space set group based on the type of the current DRX cycle, without the need for the network to send signaling for instructions, which can reduce the number of detection signaling, thereby reducing power consumption and achieving the purpose of further power saving.

Further, when the technical solution of the present invention does not obtain scheduling within a preset number of DRX short periods, selects a search space set with fewer times of detection in each time slot or each span in the two search space sets, and selects the search space set in the selection The search space set group continues to detect DCI. In the technical solution of the present invention, the user equipment does not obtain scheduling within the preset number of DRX short periods, which means that the scheduling requirement of the user equipment becomes weak. Power consumption of user equipment.

Description of drawings

1 is a flowchart of a DCI detection method according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a DCI detection apparatus according to an embodiment of the present invention.

Detailed ways

As described in the background art, in the prior art, the network needs to instruct the switching of each search space set group through signaling, which increases signaling overhead and increases the number of times the UE detects DCI, thereby increasing the power consumption of the UE.

In the technical solution of the present invention, when detecting DCI, the user equipment can select a search space set group according to the length type of the current DRX cycle for detecting DCI. In the technical solution of the present invention, the user equipment directly selects the search space set group based on the length type of the current DRX cycle, without the need for the network to send signaling for instructions, which can reduce the number of detection signaling, thereby reducing power consumption and achieving the purpose of further power saving .

The technical solution of the present invention can be applied to 5G (5Generation) communication systems, 4G and 3G communication systems, and various new communication systems in the future, such as 6G and 7G.

The technical solution of the present invention is also applicable to different network architectures, including but not limited to relay network architecture, dual link architecture, Vehicle-to-Everything (vehicle-to-anything communication) architecture and other architectures.

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a flowchart of a DCI detection method according to an embodiment of the present invention.

The DCI detection method in this embodiment of the present invention may be used on the user equipment side, that is, the user equipment may perform each step of the method shown in FIG. 1 .

Specifically, the DCI detection method may include the following steps:

Step S101: determine the length type of the current DRX cycle;

Step S102: In the activated BWP of the serving cell, according to the length type of the current DRX cycle, a search space set group corresponding to the current length type is selected from all search space set groups corresponding to the activated BWP.

Wherein, the longer the relative length of the DRX cycle, the less the number of times of detection of the selected search space group in each time slot;

Step S103: Detect DCI in the selected search space set.

It should be noted that the sequence numbers of the steps in this embodiment do not represent limitations on the execution order of the steps.

In the embodiment of the present invention, the UE accesses the serving cell to establish a radio resource control (Radio Resource Control, RRC) connection. In order to save power, the network configures discontinuous reception (Discontinuous Reception, DRX) for the UE, and can configure DRX cycles of different lengths.

The network may also configure multiple search space set groups for the UE. If the UE is configured with multiple serving cells, each serving cell may be configured with multiple search space set groups respectively. For each serving cell, one or more BWPs may be configured, and each BWP may be configured with one or more search space set groups. Each search space set group can contain one or more search space sets. Different serving cells may use respective subcarrier spacings such as 15kHz, 30kHz, or 60kHz. When the UE applies different subcarriers, the number of candidate DCIs that can be detected in a time slot (ie, the number of Physical Downlink Control Channel (PDCCH) blind detection (PDCCH Detection, or Blind Detection) times) is different. Taking a serving cell with a subcarrier of 15 kHz as an example, the UE can support a maximum of 44 DCI detection times in one time slot.

For each search space set in the search space set group, the network can configure the number of times the UE needs to detect DCI, the DCI format, and the timing of detecting DCI, etc. The detection times of the search space set group in each time slot may be the sum of the DCI times that the UE needs to detect in each time slot on all the search space sets included in the search space set group. It should be noted that other time units can be used to count the total number of DCI times that the UE needs to detect. For example, the length of 7 OFDM symbols is used as a span (Span) to count the total number of DCI times that the UE needs to detect. The method described in this patent is also applicable.

Certainly, the duration of the span may also be any other implementable duration, which is not limited in this embodiment of the present invention.

Specifically, one DCI is composed of at least one control channel element (Control Channel Element, CCE). The number of CCEs constituting one DCI is called an aggregation level (Aggregation level). The aggregation level may be 1, 2, 4, 8, or 16. A CCE is composed of 6 resource element groups (Resource Element Group, REG), wherein each REG refers to a resource block (Resource Block, which occupies the duration of one orthogonal frequency division multiplexing, OFDM) symbol. RB), that is, each REG includes 12 consecutive resource elements (Resource Element, RE) in the frequency domain. Considering that the demodulation reference signal will be included in the 12 REs, there are less than 12 REs in each REG that are actually and effectively used to transmit DCI. The more times the UE needs to detect DCI in a search space set, the greater the power consumption of the UE, which is not conducive to the power saving of the UE.

In the specific implementation of step S101, the UE may determine the length type of the current DRX cycle it is currently in, and the length type of the current DRX cycle indicates the relative length of the current DRX cycle and other DRX cycles in all DRX cycles. The lengths of all DRX cycles configured by the network for the UE are different.

For example, the network configures two types of DRX cycle lengths for the UE, DRX long cycle (Long DRX) and DRX short cycle (Short DRX), which may also be referred to as long DRX cycle and short DRX cycle. The cycle length of the DRX long cycle is longer than that of the DRX short cycle. When the UE determines that the length type of the current DRX cycle is the DRX short cycle, the UE may determine that the cycle length of the DRX short cycle is shorter among all DRX cycles configured by the UE.

Specifically, the UE can learn the length type of the current DRX cycle through medium access control (Medium Access Control, MAC) layer signaling, that is, the network can instruct the UE to enter the DRX long cycle or short cycle through MAC layer control signaling; or, The UE learns the length type of the current DRX cycle through the DRX short cycle timer. The DRX short cycle timer is used to count the number of DRX short cycles. For example, the UE has entered 5 DRX short cycles, then the UE can determine whether it is currently in the DRX short cycle according to whether the DRX short cycle timer expires; if the timer does not expire, the UE determines that it is currently in the DRX short cycle; if the timer If it has timed out or is not running, the UE needs to switch to the DRX long cycle.

As mentioned above, each BWP of each serving cell may be configured with a corresponding search space set group. In the specific implementation of step S102, the UE selects a search space set group from all search space set groups corresponding to the active BWP of the serving cell according to the length type of the current DRX cycle. In order to achieve the purpose of power saving, the longer the relative length of the current DRX cycle and other DRX cycles in all DRX cycles, the less the number of times of detection in each time slot of the selected search space set.

In a specific embodiment, the length type of the DRX cycle is selected from DRX long cycle and DRX short cycle, and the number of search space sets is two. Step S102 shown in FIG. 1 may include the following steps: if the length type of the current DRX cycle is the DRX short cycle, selecting a search space set with more detection times among the two search space sets.

In a variation example, if the current DRX cycle is the long DRX cycle, a search space set with fewer detection times among the two search space sets is selected.

In this embodiment, the network configures two types of DRX cycle lengths for the UE, DRX long cycle (Long DRX) and DRX short cycle (Short DRX). In the Short DRX cycle, the UE adopts a search space set group with a large number of detections (that is, the UE detects the DCI on the search space set in the search space set group). The UE uses a search space set with fewer detection times in the Long DRX cycle. In other words, the UE determines the DRX cycle it is in according to the MAC layer DRX command, and then decides to use the search space set corresponding to the DRX cycle. Specifically, the UE can determine the search space set group applied in short DRX and Long DRX by the DCI detection times corresponding to the search space set group, and the DCI detection times can be counted according to the slot or the span.

It should be noted that the mechanism by which the UE applies the short DRX and the long DRX is the same as the existing method, which will not be repeated here.

In the specific implementation of step S103, the UE uses the selected search space set group to detect DCI, that is, the UE detects the DCI on the search space set corresponding to the search space set group.

Compared with the prior art that requires the network to indicate the switching of each search space set group through signaling, the embodiment of the present invention adopts an implicit method of switching the search space set group, which does not require the network to send additional signaling to indicate. The number of times of signaling detection can be reduced, thereby reducing power consumption and achieving the purpose of further power saving.

In a non-limiting embodiment of the present invention, the number of search space sets is the same as the number of length types of the DRX cycle, and the length type of the current DRX cycle is based on the current DRX cycle in all DRX cycles by cycle Length order to represent. Step S102 shown in FIG. 1 may include the following steps: sorting all search space sets according to the DCI detection times of each search space set; selecting a search space set with the same sorting order as the current DRX cycle in all DRX cycles Group.

In a specific implementation, all DRX cycles configured by the UE may be sorted in advance according to the cycle length, such as from long to short or from short to long, and each type of DRX cycle has a corresponding sequence number. For example, the UE is configured with three types (that is, three lengths) of DRX cycles, and the DRX cycles of these three lengths are sorted from short to long. Each type of DRX cycle has a corresponding sequence number, such as 1, 2 , 3. Correspondingly, the network also configures three search space sets for the UE according to the BWP. When the BWP is in the active state, the UE needs to detect the DCI on the search space set corresponding to the BWP. The search space sets may be sorted first, for example, according to the number of detections in descending order, and the UE selects the search space sets with the same sorting order as the current DRX cycle in all DRX cycles.

It should be noted that when all DRX cycles are sorted from short to long, the search space set groups are sorted from most to least; when all DRX cycles are sorted from long to short, then The search space sets are sorted in descending order. In this case, the UE can select the search space sets with the same sorting order as the current DRX cycle in all DRX cycles.

In a non-limiting embodiment of the present invention, step S101 shown in FIG. 1 may further include the following step: receiving the association relationship between the length type of the DRX cycle sent by the network side and the search space set group. Correspondingly, step S102 shown in FIG. 1 may include the following steps: selecting a corresponding search space set group according to the length type of the current DRX cycle and the association relationship.

In this embodiment, when configuring search space sets, the network may directly indicate whether each search space set is applied to short DRX or long DRX, that is, the network indicates to the UE the association between the length type of the DRX cycle and the search space set relationship, so that the UE directly determines the search space set to use according to the association relationship.

Compared with the foregoing embodiment, the embodiment of the present invention does not need to calculate the number of detections of each search space set group, which can improve the calculation efficiency of the UE.

In a non-limiting embodiment of the present invention, step S102 shown in FIG. 1 may include the following steps: in an initial preset number of DRX short cycles, select a search with a larger number of detections in the corresponding two search space sets Space set group; if no scheduling is obtained within the preset number of DRX short cycles or after the initial preset number of DRX short cycles, regardless of whether the UE obtains scheduling, select the number of detections in the corresponding two search space sets and groups Fewer search space sets.

In this embodiment, the network configures the DRX long period and the DRX short period for the UE, and simultaneously configures two search space sets for the UE according to the BWP. The DRX short cycle counter (drx-ShortCycleTimer) may include multiple DRX short cycles (Short DRX Cycle), such as a maximum of 16 DRX short cycles. Once the DRX short cycle counter times out, the UE transitions to the DRX long cycle. The UE usually has scheduling requirements in the first few DRX short cycles, and the scheduling requirements in the subsequent DRX short cycles are not strong. In this case, the UE uses the search space set with more detection times in the first few DRX short cycles. Once the UE does not obtain scheduling in the current DRX short cycle (or does not obtain scheduling for several consecutive DRX short cycles) or After an initial preset number of DRX short periods, the search space set group with fewer detection times is transferred.

In a specific implementation, the UE may maintain a timer or a counter to record that a preset number of consecutive DRX short periods have not been scheduled. This preset number can be 1, or another integer value lower than the number of DRX short cycles corresponding to drx-ShortCycleTimer.

The embodiments of the present invention can use a search space set with fewer detection times when the scheduling requirement of the UE is not strong, so as to achieve better power saving.

It can be understood that, the specific value of the preset number may be set according to an actual application scenario, which is not limited in this embodiment of the present invention.

Correspondingly, in this embodiment, the UE uses a search space set with fewer detection times in the DRX long cycle.

In a variant, the short DRX cycle may correspond to two sets of search space sets (the two sets of search space sets have different DCI detection times in each time slot or each span), for example, the DCI corresponding to one search space set The number of blind checks is 30 times (for example, the number of DCI blind checks in one time slot is 30 times), and the number of DCI blind checks corresponding to another search space set group is 16 times (one time slot). The DRX long cycle can correspond to a set of search space sets.

Specifically, the search space set with more detection times is used in the first few DRX short cycles when the DRX short cycle is applied. Once the scheduling is not obtained in the current DRX short cycle or after the first few DRX short cycles, it will be transferred to A set of search space sets with fewer detections. Taking the drx-ShortCycleTimer as 8 short DRX cycles and the initial preset number of DRX short cycles as 4 as an example, when the UE enters the short DRX cycle, the UE starts the drx-ShortCycleTimer, and the UE performs DCI in the search space set with a large number of detections detection. If the UE does not receive scheduling information in the first 4 short DRX cycles after entering the short DRX cycle, the UE performs DCI detection in the search space set with a small number of detections in the next 4 short DRX cycles; or the UE directly after The 4 short DRX cycles are used for DCI detection in the search space set group with a small number of detections. Once the drx-ShortCycleTimer times out, the UE enters the long DRX cycle, and the UE continues to perform DCI detection in the search space set group with fewer detection times.

In a non-limiting embodiment of the present invention, the UE is configured with a short DRX cycle (Short DRX) and a long DRX cycle (Long DRX), and the UE corresponds to multiple sets of search space sets during the short DRX cycle (each time slot or each time slot). The detection times of each span are different), and the DRX long period corresponds to one or more sets of search space sets. That is to say, the base station configures the corresponding search space set groups according to the length and type of the DRX cycle of the UE.

The base station configures the number and index of search space sets corresponding to the DRX short cycle through RRC signaling. For example, the base station configures two sets of search space sets corresponding to the DRX short cycle through RRC signaling, and the indices are 0 and 1. The base station may configure a search space set group corresponding to the DRX short period according to each BWP of the serving cell. In the short DRX cycle, the base station may instruct the UE to switch search space set groups through DCI. For example, there may be a bit in the DCI dedicated to indicating whether the search space set with index 0 or 1 is used. Specifically, the base station decides whether to switch the search space set group according to the scheduling requirement of the UE. For example, if the scheduling requirement of the UE becomes stronger, and the UE is currently using a search space set with fewer detections, the base station instructs the UE to switch to the search space set with more detections.

When the UE is configured with multiple serving cells, the UE detects the physical downlink control channel on the search space set group detected on the activated BWP of each serving cell, and detects its own DCI. For the search space set to which the DCI indicates the application, there may be the following implementation solutions: the UE receives the DCI for switching the search space set on any serving cell, and the UE implements the switching of the search space set on all serving cells; The UE receives the DCI for switching the search space set group on one serving cell, and the UE switches the search space set group only in the serving cell, that is, the DCI only controls the switching of the search space set group on a single serving cell.

In the specific implementation, the UE first uses the default search space set group to detect DCI, and after detecting the DCI, learns whether there is an index of the search space set group in the DCI, if so, it means that the search space set group needs to be switched, and switch to the index Pointed to the search space set for DCI detection.

In the DRX long cycle, if there is only one set of search space sets corresponding to the DRX long cycle, the UE does not need an independent bit in the DCI to indicate the search space set during the DRX long cycle; if the DRX long cycle corresponds to multiple sets of searches If the space set group is selected, the DCI detected by the UE in the DRX long period needs to have an independent bit to indicate the applied search space set group.

In the embodiment of the present invention, by configuring the search space sets corresponding to the length types of different DRX cycles, the network can effectively reduce the bits indicating the search space sets in the DCI when instructing to switch the search space sets, thereby reducing signaling overhead .

Referring to FIG. 2 , an embodiment of the present invention further discloses a DCI detection device 20 . The DCI detection device 20 may include:

The cycle type determination module 201 is used to determine the length type of the current DRX cycle;

The search space set group selection module 202 is configured to select a search space set group corresponding to the current length type from all the search space set groups corresponding to the active BWP according to the length type of the current DRX cycle in the activated BWP of the serving cell, Wherein, the longer the relative length, the less the number of times of detection of the selected search space set group in each time slot;

The DCI detection module 203 is configured to detect DCI in the selected search space group.

In the embodiment of the present invention, the user equipment directly selects the search space set group based on the length type of the current DRX cycle, without the need for the network to send signaling for instructions, which can reduce the number of times of signaling detection, thereby reducing power consumption and achieving the purpose of further power saving .

For more content about the working principle and working mode of the DCI detection apparatus 20, reference may be made to the relevant description in FIG. 1, and details are not repeated here.

The embodiment of the present invention further discloses a storage medium, which is a computer-readable storage medium, and stores a computer program thereon, and the computer program can execute the steps of the method shown in FIG. 1 when running. The storage medium may include ROM, RAM, magnetic or optical disks, and the like. The storage medium may also include a non-volatile memory (non-volatile) or a non-transitory (non-transitory) memory and the like.

The embodiment of the present invention further discloses a user equipment, the user equipment may include a memory and a processor, and the memory stores a computer program that can run on the processor. The processor may perform the steps of the method shown in FIG. 1 when running the computer program. The user equipment includes but is not limited to terminal equipment such as mobile phones, computers, and tablet computers.

A base station (base station, BS for short) in this embodiment of the present application, which may also be referred to as base station equipment, is a device deployed in a radio access network (RAN) to provide a wireless communication function. For example, devices that provide base station functions in 2G networks include base transceiver stations (English: base transceiver station, referred to as BTS), devices that provide base station functions in 3G networks include NodeBs (NodeBs), and devices that provide base station functions in 4G networks. Including evolved Node B (evolved NodeB, eNB), in wireless local area networks (wireless local area networks, referred to as WLAN), the device that provides base station functions is an access point (access point, referred to as AP), 5G New Radio (New Radio, Referred to as NR), the equipment gNB that provides base station functions, and the continuously evolved Node B (ng-eNB), wherein the gNB and the terminal use NR technology for communication, and the ng-eNB and the terminal use E-UTRA (Evolved Universal Terrestrial Radio Access) technology to communicate, both gNB and ng-eNB can be connected to the 5G core network. The base station in the embodiment of the present application also includes a device that provides a base station function in a new communication system in the future, and the like.

The base station controller in the embodiments of the present application is a device for managing base stations, such as a base station controller (BSC for short) in a 2G network and a radio network controller (RNC for short) in a 3G network , It can also refer to the device that controls and manages the base station in the new communication system in the future.

The network side network in the embodiment of the present invention refers to a communication network that provides communication services for terminals, including a base station of a wireless access network, a base station controller of a wireless access network, and a device on the core network side.

The terminal in the embodiments of this application may refer to various forms of user equipment (user equipment, UE for short), access terminal, subscriber unit, subscriber station, mobile station, mobile station (mobile station, built as MS), remote station, remote station A terminal, mobile device, user terminal, terminal equipment, wireless communication device, user agent or user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a Wireless communication-capable handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or future evolved Public Land Mobile Networks (PLMN for short) ), which is not limited in this embodiment of the present application.

It should be understood that the term "and/or" in this document is only an association relationship to describe associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, and A and B exist at the same time , there are three cases of B alone. In addition, the character "/" in this text indicates that the related objects before and after are an "or" relationship.

The "plurality" in the embodiments of the present application refers to two or more.

The descriptions of the first, second, etc. appearing in the embodiments of the present application are only used for illustration and distinguishing the description objects, and have no order. any limitations of the examples.

The "connection" in the embodiments of the present application refers to various connection modes such as direct connection or indirect connection, so as to realize communication between devices, which is not limited in the embodiments of the present application.

It should be understood that in the embodiment of the present application, the processor may be a central processing unit (central processing unit, CPU for short), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP for short), special-purpose processors An integrated circuit (application specific integrated circuit, ASIC for short), an off-the-shelf programmable gate array (field programmable gate array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM for short), a programmable read-only memory (PROM for short), an erasable PROM for short (EPROM) , Electrically Erasable Programmable Read-Only Memory (electrically EPROM, EEPROM for short) or flash memory. The volatile memory may be random access memory (RAM for short), which is used as an external cache memory. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic Random access memory (synchronous DRAM, referred to as SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, referred to as DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, referred to as ESDRAM), synchronous connection Dynamic random access memory (synchlink DRAM, referred to as SLDRAM) and direct memory bus random access memory (direct rambus RAM, referred to as DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission by wire or wireless to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that contains one or more sets of available media. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media. The semiconductor medium may be a solid state drive.

In the several embodiments provided in this application, it should be understood that the disclosed method, apparatus and system may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative; for example, the division of the units is only a logical function division, and other division methods may be used in actual implementation; for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included individually, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.

The above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM for short), Random Access Memory (RAM for short), magnetic disk or CD, etc. that can store program codes medium.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be based on the scope defined by the claims.

Claims (11)

1. a DCI detection method, is characterized in that, comprises: Determine the length type of the current DRX cycle; In the activated BWP of the serving cell, according to the length type of the current DRX cycle, a search space set group corresponding to the current length type is selected from all search space sets corresponding to the activated BWP; DCI is detected in the selected search space set group. 2. The DCI detection method according to claim 1, wherein the number of search space sets corresponding to the activated BWP is the same as the number of length types of the DRX cycle, and the length type of the current DRX cycle is the same as that of the current DRX cycle. The DRX cycle is represented by the order of cycle lengths in all DRX cycles, and the selection of search space sets from all search space sets according to the length type of the current DRX cycle includes: Sort all search space groups according to the number of detections of each search space group per time slot or each span; A search space set group whose order is the same as the order of the current DRX cycle among all DRX cycles is selected. 3. DCI detection method according to claim 1, is characterized in that, the length type of DRX cycle comprises DRX long cycle and DRX short cycle, the quantity of the search space set group corresponding to activation BWP is two, described according to described The length type of the current DRX cycle is selected from all search space sets including: If the length type of the current DRX cycle is the DRX short cycle, a search space set with more times of detection in each time slot or each span of the two search space sets is selected. 4. DCI detection method according to claim 3, is characterized in that, also comprises: If no scheduling is obtained within a preset number of DRX short cycles, or no scheduling is obtained within a preset number of consecutive DRX short cycles, select the one with fewer detection times per time slot or per span in the two search space sets. Search for the space set, and continue to detect DCI in the selected search space set. 5. DCI detection method according to claim 1, is characterized in that, the length type of DRX cycle comprises DRX long cycle and DRX short cycle, the quantity of the corresponding search space set group of activated BWP is two, described according to described The length type of the current DRX cycle is selected from all search space sets including: If the current DRX cycle is the long DRX cycle, select a search space set with fewer times of detection in each time slot or each span in the two search space sets. 6. The DCI detection method according to claim 1, wherein the length type of the DRX cycle includes a DRX long cycle and a DRX short cycle, and in the activated BWP, the DRX short cycle corresponds to two search space set groups , and selecting a search space set group from all search space sets according to the length type of the current DRX cycle includes: In the initial preset number of DRX short periods, select the search space group with more detection times in the corresponding two search space groups; If no scheduling is obtained within the preset number of DRX short cycles, or no scheduling is obtained within a preset number of consecutive DRX short cycles, or after the initial preset number of DRX short cycles, select the corresponding two search A search space set with fewer detections per slot or per span in the space set. 7. The DCI detection method according to claim 1, wherein before the determining the length type of the current DRX cycle, the method comprises: Receive the association relationship between the length type of the DRX cycle sent by the network side and the search space set group; the selection of the search space set group from all the search space set groups corresponding to the BWP according to the length type of the current DRX cycle includes: The corresponding search space set group is selected according to the length type of the current DRX cycle and the association relationship. 8. The DCI detection method according to claim 1, wherein the detection of DCI in the selected search space set group comprises: detecting DCI in the activated BWP of the serving cell; Alternatively, DCI is detected in the activated BWPs of all serving cells. 9. A DCI detection device, characterized in that, comprising: The cycle type determination module is used to determine the length type of the current DRX cycle; A search space set group selection module, configured to select a search space set group corresponding to the current length type from all search space sets corresponding to the active BWP according to the length type of the current DRX cycle in the activated BWP of the serving cell; The DCI detection module is used to detect DCI in the selected search space group. 10 . A storage medium having a computer program stored thereon, wherein the computer program executes the steps of the DCI detection method according to any one of claims 1 to 8 when the computer program is run by a processor. 11 . 11. A user equipment, comprising a memory and a processor, the memory stores a computer program that can run on the processor, wherein the processor executes claims 1 to 1 when the processor runs the computer program The steps of any one of the DCI detection methods in 8.

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