Search space set group switching method and device, storage medium, user equipment, and base station

Abstract

A search space group switching method and device, storage medium, user equipment, and base station, the search space group switching method comprising: determining that the user equipment needs to switch the search space group within the current DRX cycle; determining the identifier of the search space group to be switched among all the search space groups corresponding to the length type of the current DRX cycle within the activated BWP of the user equipment, wherein the number of search space groups corresponding to the length type of each DRX cycle is one or more; and carrying the identifier of the search space group to be switched in the DCI and sending it to the user equipment. The technical solution of the present invention can reduce the signaling overhead when switching the search space group.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a search space set group switching method and device, a storage medium, a user equipment, and a base station. Background Art

[0002] In the New Radio (NR) system, the base station can configure the user equipment (UE) to detect its own downlink control signaling (DCI) based on its own radio network temporary identifier (RNTI) on one or more control resource sets (CORESETs) on the activated bandwidth (Bandwidth Part, BWP) of the serving cell. For example, for a scenario where carrier aggregation is not considered, the UE works on one carrier, that is, one serving cell. The base station can configure the UE to detect the search space in one or more CORESETs on the activated BWP in the carrier. The UE detects its own DCI based on its own RNTI, and then receives or uploads data based on the DCI. A serving cell can be configured with one or more BWPs, which can be activated or inactivated. The UE does not need to detect the DCI on an inactivated BWP.

[0003] The UE can be configured with one serving cell or multiple serving cells. For each serving cell, one or more control resource sets (CORESETs) can be configured according to the BWP, and one or more search space sets (search space sets) can be configured on each CORESET. The network can configure the number of times the UE detects DCI in each search space set, the aggregation level, the DCI format, etc., as well as the timing of detecting DCI. The number of times the UE performs different DCI blind detections is closely related to the power consumption of the UE. Therefore, the New Radio (NR) system considers switching the UE's search space set group (Search space set group) to achieve power saving.

[0004] However, in the prior art, the network needs to instruct each switching of the search space set groups through signaling. When the number of search space set groups is large, the signaling overhead of the network instructing the switching of the search space set groups through signaling is large. Summary of the Invention

[0005] The technical problem solved by the present invention is how to reduce the signaling overhead during search space set group switching.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a search space group switching method, which includes: within the current DRX cycle, determining that the user equipment needs to switch the search space group; within the activated BWP of the user equipment, determining the identifier of the search space group to be switched among all search space groups corresponding to the length type of the current DRX cycle, wherein the number of search space groups corresponding to the length type of each DRX cycle is one or more; and carrying the identifier of the search space group to be switched in the DCI and sending it to the user equipment.

[0007] Optionally, before determining that the user equipment needs to switch the search space set group, the method further includes: configuring a corresponding search space set group for the length type of each DRX cycle configured for the user equipment.

[0008] Optionally, determining that the user equipment needs to switch the search space set group includes: determining that the user equipment needs to switch the search space set group according to a scheduling requirement change of the user equipment.

[0009] Optionally, the carrying the identifier of the search space set group to be switched in the DCI and sending it to the user equipment includes: carrying the identifier of the search space set group to be switched in a dedicated indication bit in the DCI and sending it out.

[0010] Optionally, when the number of search space set groups corresponding to the length type of the DRX cycle is multiple, the detection times of the multiple search space set groups in each time slot or each span are different.

[0011] To solve the above technical problems, an embodiment of the present invention also discloses another search space set group switching method for a user equipment, wherein the user equipment is configured with DRX, and the method includes: receiving DCI from a base station; determining the search space set group to be switched according to the identifier of the search space set group to be switched carried in the DCI, wherein the base station determines the identifier of the search space set group to be switched in all search space set groups corresponding to the length type of the current DRX cycle within the activated BWP of the user equipment, and the number of search space set groups corresponding to the length type of each DRX cycle is one or more; and detecting the DCI in the search space set group after switching.

[0012] Optionally, the receiving of the DCI from the base station includes: within the current DRX cycle, detecting the DCI using a default search space set group in a search space set group corresponding to a length type of the current DRX cycle.

[0013] An embodiment of the present invention also discloses a search space group switching device for use in a base station, comprising: a switching determination module, used to determine that a user equipment needs to switch a search space group within a current DRX cycle; an identification determination module, used to determine, within the activated BWP of the user equipment, an identification of the search space group to be switched among all search space groups corresponding to the length type of the current DRX cycle, wherein the number of search space groups corresponding to the length type of each DRX cycle is one or more; and a sending module, used to carry the identification of the search space group to be switched in a DCI and send it to the user equipment.

[0014] An embodiment of the present invention also discloses another search space group switching device, which is used for a user equipment, and the user equipment is configured with DRX, and is characterized in that the method includes: a receiving module, which is used to receive DCI from a base station; a search space group determination module, which is used to determine the search space group to be switched according to the identifier of the search space group to be switched carried in the DCI, wherein the base station determines the identifier of the search space group to be switched in all search space groups corresponding to the length type of the current DRX cycle within the activated BWP of the user equipment, and the number of search space groups corresponding to the length type of each DRX cycle is one or more; a detection module, which is used to detect DCI in the search space group after switching. An embodiment of the present invention also discloses a storage medium, which stores a computer program, and the computer program executes the steps of the search space group switching method when it is executed by a processor.

[0015] An embodiment of the present invention further discloses a base station, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor executes the steps of the search space set group switching method when running the computer program.

[0016] An embodiment of the present invention further discloses a user equipment, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor executes the steps of the search space set group switching method when running the computer program.

[0017] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0018] In the technical solution of the present invention, the base station pre-configures the search space set group corresponding to the length type of each DRX cycle for the user equipment. When the user equipment needs to switch the search space set group, the base station can determine the identifier of the search space set group to be switched based on all the search space set groups corresponding to the length type of the current DRX cycle, thereby reducing the number of bits occupied by the identifier of the search space set group to be switched, and further reducing the number of bits in the DCI used to indicate the identifier of the search space set group, saving signaling overhead while reducing user power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a flow chart of a search space set switching method according to an embodiment of the present invention;

[0020] Figure 2 is a flow chart of another search space set switching method according to an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of a specific application scenario of an embodiment of the present invention;

[0022] Figure 4 This is a schematic structural diagram of a search space set switching device according to an embodiment of the present invention;

[0023] Figure 5 It is a structural diagram of another search space set switching device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] As described in the background art, in the prior art, the network needs to instruct each switching of the search space set groups through signaling. When there are a large number of search space set groups, the signaling overhead of the network instructing the switching of the search space set groups through signaling is large.

[0025] In the technical solution of the present invention, the base station pre-configures the search space set group corresponding to the length type of each DRX cycle for the user equipment. When the user equipment needs to switch the search space set group, the base station can determine the identifier of the search space set group to be switched based on all the search space set groups corresponding to the length type of the current DRX cycle, thereby reducing the number of bits occupied by the identifier of the search space set group to be switched, and further reducing the number of bits in the DCI used to indicate the identifier of the search space set group, saving signaling overhead while reducing user power consumption.

[0026] The technical solution of this invention can be applied to 5G (5Generation) communication systems, as well as 4G and 3G communication systems, and can also be applied to various new communication systems in the future, such as 6G and 7G.

[0027] The technical solution of this 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.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] Figure 1 This is a flowchart of a search space set switching method according to an embodiment of the present invention.

[0030] The search space set group switching method of the embodiment of the present invention can be used on the base station side, that is, it can be executed by the base station. Figure 1 The individual steps of the method are shown.

[0031] Specifically, the search space set group switching method may include the following steps:

[0032] Step S101: In the current DRX cycle, it is determined that the user equipment needs to switch the search space set group;

[0033] Step S102: determining, within the activated BWP of the user equipment, an identifier of a search space set group to be switched from all search space set groups corresponding to the length type of the current DRX cycle, wherein the number of search space set groups corresponding to each DRX cycle length type is one or more;

[0034] Step S103: carrying the identifier of the search space set to be switched in DCI and sending it to the user equipment.

[0035] It should be noted that the serial numbers of the steps in this embodiment do not limit the execution order of the steps.

[0036] In the specific implementation of step S101, the base station may determine that the user equipment needs to switch the search space set group. Specifically, the base station may determine that the user equipment needs to switch the search space set group according to a change in a scheduling requirement of the user equipment.

[0037] For example, the network configures a long DRX cycle (Long DRX Cycle) and a short DRX cycle (Short DRX Cycle) for the UE. The UE usually has scheduling requirements in the first few short DRX cycles, and the scheduling requirements in the subsequent short DRX cycles are not strong. In this case, the base station can determine that the UE needs to switch the search space set group, and after several short DRX cycles, instruct the UE to switch to the search space set group with fewer detection times. The number of detections refers to the number of times the UE detects the DCI on the physical downlink control channel, also known as the number of blind detections (PDCCH Detection, or Blind Detection). The number of detections can be the number of DCIs that need to be detected within a time slot, or the number of DCIs that need to be detected in a span. A span can be 7 OFDM symbols in length, or a smaller time length.

[0038] Of course, the duration of the span may also be any other feasible time length, and the embodiment of the present invention does not limit this.

[0039] In a non-limiting embodiment, Figure 1 The step S101 may include the following steps: configuring a corresponding search space set group for each DRX cycle length type configured by the user equipment.

[0040] In this embodiment, the length type of the current DRX cycle represents the relative length of the current DRX cycle and other DRX cycles among all DRX cycles. The lengths of all DRX cycles configured by the network for the UE are different. For example, the network configures two DRX cycle length types for the UE: a long DRX cycle (Long DRX) and a short DRX cycle (Short DRX). The cycle length of the long DRX cycle is longer than the cycle length of the short DRX cycle. When the UE determines that the length type of the current DRX cycle is a short DRX cycle, the UE may determine that the cycle length of the short DRX cycle is shorter among all DRX cycles configured by the UE.

[0041] In this embodiment, the base station can configure corresponding search space sets for each DRX cycle length type. For example, a UE corresponds to multiple search space sets (with different detection times) in a short DRX cycle, and one or more search space sets in a long DRX cycle.

[0042] In a specific implementation of step S102, the base station may determine, according to the BWP activated by the UE, a search space set group to be switched and its identifier from among all search space set groups corresponding to the length type of the current DRX cycle. The identifier of the search space set group may be an index of the search space set group, used to point to the search space set group.

[0043] Since each length type of DRX cycle has a corresponding search space set group, when the UE performs DCI detection on this type of DRX cycle, it uses the search space set group corresponding to this type of DRX cycle; therefore, when the base station instructs the UE to switch the search space set group, it also needs to select a search space set group from the search space set groups corresponding to this type of DRX cycle.

[0044] Specifically, to achieve better power conservation, the search space set to be switched is detected fewer times than the search space set currently used by the UE. In other words, the base station achieves UE power conservation by instructing the UE to switch to a search space set with fewer detections. Once the UE has a scheduling requirement, the base station can again use DCI to instruct the UE to switch to a search space set with more detections.

[0045] For example, in an activated BWP, if there are two sets of search space set groups corresponding to the DRX short cycle, the indexes of the two sets of search space set groups can be 0 and 1 respectively; correspondingly, if there are four sets of search space set groups corresponding to the DRX short cycle, the indexes of the two sets of search space set groups can be 0, 1, 2 and 3 respectively.

[0046] It should be noted that if the base station determines that the UE does not need to switch the search space set group, it does not indicate the identifier of the search space set group to be switched, or the index of the currently used search space set group in the DCI.

[0047] Then, in the specific implementation of step S103, the base station may carry the identifier of the search space set group to be switched in the DCI and send it to the UE.

[0048] In an embodiment of the present invention, the base station pre-configures a search space set group corresponding to the length type of each DRX cycle for the user equipment according to the BWP. When the user equipment needs to switch the search space set group, the base station can determine the identifier of the search space set group to be switched based on all search space set groups corresponding to the length type of the current DRX cycle, thereby reducing the number of bits occupied by the identifier of the search space set group to be switched, and further reducing the number of bits used to indicate the identifier of the search space set group in the DCI, thereby saving signaling overhead on the basis of reducing user power consumption.

[0049] In a non-limiting embodiment of the present invention, Figure 1 Step S103 may include the following steps: carrying the identifier of the search space set group to be switched in a dedicated indication bit in the DCI and sending it out.

[0050] In this embodiment, there may be one bit in the DCI dedicated to indicating an identifier of the search space set group, that is, a dedicated indication bit.

[0051] In the prior art, a UE is configured with four search space set groups. If a base station instructs the UE to switch search space set groups using a dedicated indication bit, the search space set group identifier occupies two bits. However, in the embodiment of the present invention, since the base station configures search space set groups for each type of DRX cycle based on the BWP, and each type of DRX cycle corresponds to two search space set groups, the search space set group identifier only occupies a single bit when the base station instructs the UE to switch search space set groups.

[0052] In the embodiment of the present invention, the network can effectively reduce the number of bits indicating the search space set group in the DCI by configuring the search space set groups corresponding to different DRX cycles.

[0053] Please refer to Figure 2 , Figure 2 The search space set group switching method shown can be used on the user equipment side, that is, it can be performed by the user equipment Figure 2 The steps of the method shown are as follows: The user equipment is configured with DRX.

[0054] The search space set switching method may specifically include the following steps:

[0055] Step S201: receiving DCI from a base station;

[0056] Step S202: determining the search space set group to be switched according to the identifier of the search space set group to be switched carried in the DCI, wherein the number of search space set groups corresponding to each DRX cycle length type in the activated BWP of the user equipment is one or more;

[0057] Step S203: Detect DCI in the search space set after switching.

[0058] In this embodiment, the UE establishes a connection with the base station, configures DRX, and receives DCI within the activation time of the current DRX cycle.

[0059] The base station carries the identifier of the search space set group to be switched by the UE in the DCI. Therefore, in the specific implementation of step S202, the UE can obtain the identifier of the search space set group to be switched from the DCI, thereby determining the search space set group to be switched.

[0060] For example, the number of DCI blind detections for the search space group with index 0 is 30, and the number of DCI blind detections for the search space group with index 1 is 16. The UE parses the DCI to obtain index 1 and determines that the search space group to be switched is the search space group with 16 blind detections.

[0061] Then, in the specific implementation of step S203, the UE detects DCI in the search space set after the handover.

[0062] In one non-limiting embodiment, Figure 2 Step S201 may include the following steps: detecting the DCI in a default search space set group among the search space set groups corresponding to the length type of the current DRX cycle.

[0063] In this embodiment, the UE first detects DCI using a default search space group and then obtains the identifier of the search space group to be switched from the DCI. The default search space group may be a search space group detected less frequently among the search space groups corresponding to the length type of the current DRX cycle. Alternatively, the default search space group may be a search space group detected more frequently among the search space groups corresponding to the length type of the current DRX cycle. This embodiment of the present invention does not impose any restrictions on this.

[0064] In a specific embodiment of the present invention, 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 the number of search space sets corresponding to the DRX short cycle as two sets through RRC signaling, with indexes of 0 and 1 respectively. The base station can configure the search space sets corresponding to the DRX short cycle according to each BWP of the serving cell. In the DRX short cycle, the base station can instruct the UE to switch the search space set group through DCI. For example, there can be a bit in the DCI dedicated to indicating whether to use the search space set group with index 0 or 1. Specifically, the base station decides whether to switch the search space set group based on the scheduling requirements of the UE. For example, if the scheduling requirements of the UE become stronger and the UE is currently using a search space set group with fewer detection times, the base station instructs the UE to switch to the search space set group with more detection times.

[0065] When a UE is configured with multiple serving cells, the UE detects the physical downlink control channel on the search space set group on the activated BWP of each serving cell and detects its own DCI. For the search space set group indicated by the DCI, the following implementation schemes can be used:

[0066] When the UE receives DCI indicating switching the search space set group on any serving cell, the UE performs the search space set switching on all serving cells. In this case, the search space set identifier value on all serving cells must be consistent, so that the identifiers of the search space set group after switching indicated by DCI on different serving cells are all valid;

[0067] Alternatively, if a UE receives DCI on a serving cell indicating a search space set group switch, the UE switches the search space set group only in that serving cell, i.e., the DCI controls the switching of the search space set group only in a single serving cell. Considering the existence of cross-carrier scheduling, i.e., one serving cell can schedule transmission resources on another serving cell across carriers, if the DCI on the search space set group switch is also cross-carrier scheduled, then after receiving the DCI, the UE applies the switched search space set group on the scheduled serving cell. If cross-carrier scheduling is not applied, after receiving the DCI on a serving cell indicating a search space set group switch, the UE applies the switched search space set group in that serving cell.

[0068] In a specific implementation, the UE first detects DCI using the default search space group. After detecting the DCI, it determines whether the DCI contains a search space group index. If so, it indicates that a search space group switch is required. The UE then switches to the search space group indicated by the index for DCI detection. The default search space group can be any search space group configured by the network in the current DRX cycle, such as the search space group with the smallest identification number.

[0069] In a DRX long cycle, if there is only one search space set group corresponding to the DRX long cycle, the UE does not need to have an independent bit indicating the search space set group in the DCI during the DRX long cycle; if the DRX long cycle corresponds to multiple search space set groups, the UE needs to have an independent bit indicating the applied search space set group in the DCI detected during the DRX long cycle.

[0070] In the embodiment of the present invention, the network configures search space set groups corresponding to different DRX cycle length types, which can effectively reduce the bits indicating the search space set group in the DCI when indicating switching the search space set group, thereby reducing signaling overhead.

[0071] Please refer to Figure 3 , Figure 3 A flow chart showing the interaction between the base station and the UE is shown.

[0072] In step S31 , the base station 31 configures multiple types of DRX cycles for the UE 32 , as well as search space set groups corresponding to the length type of each DRX cycle.

[0073] In step S32, the base station 31 determines that the UE 32 needs to switch the search space set group in the current DRX cycle.

[0074] In step S33 , in the BWP activated by UE 32 , the identifier of the search space set group to be switched is determined among all search space set groups corresponding to the length type of the current DRX cycle.

[0075] In step S34 , the identifier of the search space set to be switched is carried in DCI and sent to UE32 .

[0076] In step S35 , UE 32 determines the search space set group to be switched according to the identifier of the search space set group to be switched carried in the DCI, and detects DCI in the search space set group after the switch.

[0077] At this point, UE 32 completes the switching of the search space set group.

[0078] Please refer to Figure 4 The embodiment of the present invention further discloses a search space set group switching device 40. The search space set group switching device 40 may include:

[0079] The switching determination module 401 is configured to determine whether the user equipment needs to switch the search space set group within the current DRX cycle;

[0080] an identifier determining module 402, configured to determine, within an activated BWP of the user equipment, an identifier of a search space set group to be switched from all search space set groups corresponding to a length type of the current DRX cycle, where the number of search space set groups corresponding to each DRX cycle length type is one or more;

[0081] The sending module 403 is configured to carry the identifier of the search space set to be switched in the DCI and send it to the user equipment.

[0082] For more information about the working principle and working method of the search space set switching device 40, please refer to Figures 1 to 3 The relevant description in will not be repeated here.

[0083] Please refer to Figure 5 The embodiment of the present invention further discloses a search space set group switching device 40. The search space set group switching device 50 may include:

[0084] Receiving module 501, configured to receive DCI from a base station;

[0085] A search space set group determining module 502 is configured to determine a search space set group to be switched based on an identifier of the search space set group to be switched carried in the DCI, wherein the base station determines the identifier of the search space set group to be switched from all search space set groups corresponding to a length type of a current DRX cycle within an activated BWP of the user equipment, and the number of search space set groups corresponding to each DRX cycle length type is one or more;

[0086] The detection module 503 is configured to detect DCI in the search space set after the switch.

[0087] In an embodiment of the present invention, the base station pre-configures a search space set group corresponding to the length type of each DRX cycle for the user equipment. When the user equipment needs to switch the search space set group, the base station can determine the identifier of the search space set group to be switched based on all the search space set groups corresponding to the length type of the current DRX cycle, thereby reducing the number of bits occupied by the identifier of the search space set group to be switched, and further reducing the number of bits in the DCI used to indicate the identifier of the search space set group, thereby saving signaling overhead on the basis of reducing user power consumption.

[0088] For more information about the working principle and working method of the search space group switching device 50, please refer to Figures 1 to 3 The relevant description in will not be repeated here.

[0089] The embodiment of the present invention further discloses a storage medium, which is a computer-readable storage medium having a computer program stored thereon. When the computer program is run, the computer program can execute Figure 1-Figure 3 The steps of the method shown in . The storage medium may include ROM, RAM, magnetic disk or optical disk, etc. The storage medium may also include non-volatile memory or non-transitory memory, etc.

[0090] The embodiment of the present invention further discloses a user equipment, which may include a memory and a processor, wherein the memory stores a computer program that can be run on the processor. When the processor runs the computer program, it can execute Figure 2 The user equipment includes but is not limited to mobile phones, computers, tablet computers and other terminal devices.

[0091] The embodiment of the present invention further discloses a base station, which may include a memory and a processor, wherein the memory stores a computer program that can be run on the processor. When the processor runs the computer program, it can execute Figure 2 The user equipment includes but is not limited to mobile phones, computers, tablet computers and other terminal devices.

[0092] The base station (BS) in the embodiments of the present application, which may also be referred to as a base station device, is a device deployed in a radio access network (RAN) to provide wireless communication functions. For example, the device providing base station functions in a 2G network includes a base transceiver station (BTS), the device providing base station functions in a 3G network includes a node B (NodeB), the device providing base station functions in a 4G network includes an evolved node B (eNB), and in wireless local area networks (WLANs), the device providing base station functions is an access point (AP). The device providing base station functions in 5G New Radio (NR) is a gNB, and an evolved node B (ng-eNB). 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 for communication. Both the gNB and the ng-eNB can be connected to the 5G core network. The base station in the embodiments of the present application also includes devices that provide base station functions in future new communication systems.

[0093] The base station controller in the embodiment of the present application is a device that manages base stations, such as a base station controller (BSC) in a 2G network, a radio network controller (RNC) in a 3G network, and may also refer to a device that controls and manages base stations in future new communication systems.

[0094] The network side in the embodiment of the present invention refers to a communication network that provides communication services to terminals, including base stations of a radio access network, base station controllers of the radio access network, and devices on the core network side.

[0095] The terminal in the embodiments of the present application may refer to various forms of user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), remote station, remote terminal, mobile device, user terminal, terminal equipment, wireless communication equipment, user agent, or user device. 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 handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved Public Land Mobile Network (PLMN), etc., and the embodiments of the present application are not limited thereto.

[0096] It should be understood that the term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document indicates that the related objects are in an "or" relationship.

[0097] The term "plurality" used in the embodiments of the present application refers to two or more.

[0098] The first, second, etc. descriptions appearing in the embodiments of this application are only for illustration and distinction of the description objects. There is no order, nor does it indicate any special limitation on the number of devices in the embodiments of this application, and cannot constitute any limitation on the embodiments of this application.

[0099] The "connection" appearing in the embodiments of the present application refers to various connection methods such as direct connection or indirect connection to achieve communication between devices, and the embodiments of the present application do not impose any limitations on this.

[0100] It should be understood that in the embodiments of the present application, the processor may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0101] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0102] The above embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented using software, the above embodiments can 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 program are loaded or executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via wired or wireless means. 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 or data center that contains one or more available media sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state drive.

[0103] In the several embodiments provided in this application, it should be understood that the disclosed methods, devices, and systems can be implemented in other ways. For example, the device embodiments described above are merely schematic; for example, the division of the units is merely a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical, or other forms.

[0104] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0105] In addition, the functional units in various embodiments of the present invention may be integrated into a single processing unit, each unit may be physically included separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or hardware plus software functional units.

[0106] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to perform some steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, an optical disk, and other media that can store program code.

[0107] Although the present invention is disclosed as 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 scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A search space set group switching method, used in a base station, characterized in that: The method comprises: In the current DRX cycle, determining that the user equipment needs to switch the search space set group; In an activated BWP of the user equipment, determining an identifier of a search space set group to be switched from all search space set groups corresponding to a length type of the current DRX cycle, wherein the number of search space set groups corresponding to a length type of each DRX cycle is one or more; The identifier of the search space set group to be switched is carried in DCI and sent to the user equipment, and the user equipment detects DCI in the switched search space set group corresponding to the length type of the current DRX cycle.

2. The search space set switching method according to claim 1, characterized in that: Before determining that the user equipment needs to switch the search space set group, the method further includes: A corresponding search space set group is configured for the length type of each DRX cycle configured by the user equipment.

3. The search space set switching method according to claim 1, characterized in that: The determining that the user equipment needs to switch the search space set group includes: It is determined that the user equipment needs to switch the search space set group according to a scheduling requirement change of the user equipment.

4. The search space set switching method according to claim 1, characterized in that: The step of carrying the identifier of the search space set group to be switched in the DCI and sending it to the user equipment includes: The identifier of the search space set group to be switched is carried in the dedicated indication bit in the DCI and sent out.

5. The search space set switching method according to claim 1, characterized in that: When the number of search space sets corresponding to the length type of the DRX cycle is multiple, the detection times of the multiple search space sets in each time slot or each span are different.

6. A search space set group switching method, for a user equipment, wherein the user equipment is configured with DRX, characterized in that: The method comprises: Receiving DCI from a base station; The search space group to be switched is determined according to the identifier of the search space group to be switched carried in the DCI, wherein the base station determines the identifier of the search space group to be switched among all search space groups corresponding to the length type of the current DRX cycle within the activated BWP of the user equipment, and the number of search space groups corresponding to the length type of each DRX cycle is one or more; and the DCI is detected in the switched search space group corresponding to the length type of the current DRX cycle.

7. The search space set switching method according to claim 6, characterized in that: The receiving DCI from the base station includes: In the current DRX cycle, the DCI is detected using a default search space set group in the search space set groups corresponding to the length type of the current DRX cycle.

8. The search space set switching method according to claim 6, characterized in that: The detecting DCI in the search space set group after switching corresponding to the length type of the current DRX cycle comprises: if a DCI indicating switching the search space set group is received in a serving cell, detecting DCI in the search space set group after switching in the activated BWP of all serving cells; Alternatively, if a DCI indicating switching of the search space set group is received in a serving cell, the DCI is detected in the search space set group after switching in the activated BWP of the serving cell.

9. A search space set switching device, used in a base station, characterized in that: include: A switching determination module, used to determine that the user equipment needs to switch the search space set group within the current DRX cycle; an identifier determination module, configured to determine, within an activated BWP of the user equipment, an identifier of a search space set group to be switched from among all search space set groups corresponding to a length type of the current DRX cycle, wherein the number of search space set groups corresponding to a length type of each DRX cycle is one or more; The sending module is used to carry the identifier of the search space set group to be switched in the DCI and send it to the user equipment, and the user equipment detects the DCI in the switched search space set group corresponding to the length type of the current DRX cycle.

10. A search space set switching device, used for a user equipment, wherein the user equipment is configured with DRX, characterized in that: The device comprises: A receiving module, used for receiving DCI from a base station; a search space set group determination module, configured to determine the search space set group to be switched according to the identifier of the search space set group to be switched carried in the DCI, wherein the base station determines the identifier of the search space set group to be switched in all search space set groups corresponding to the length type of the current DRX cycle within the activated BWP of the user equipment, and the number of search space set groups corresponding to the length type of each DRX cycle is one or more; The detection module is used to detect DCI in the switched search space set group corresponding to the length type of the current DRX cycle.

11. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the search space set switching method according to any one of claims 1 to 8 are executed.

12. A base station, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, characterized in that: When the processor runs the computer program, the processor performs the steps of the search space set switching method according to any one of claims 1 to 5.

13. A user equipment, comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, wherein: When the processor runs the computer program, the processor performs the steps of the search space set switching method according to any one of claims 6 to 8.

Images