Search space group switching method and apparatus

Abstract

The application discloses a search space group switching method and device, and belongs to the technical field of wireless communication. The search space group switching method comprises the following steps: if a first condition is met, a default search space group is switched, wherein the default search space is any one or more search space groups configured by a network side or agreed by a protocol; wherein the first condition comprises at least one of the following: determining to start a DRX duration timer; determining to switch to a first non-dormant BWP; and a BWP inactivation timer expires. In the application, after the terminal meets the first condition, the terminal is switched to the default search space group configured by the network side or agreed by the protocol, so that the terminal and the network side are consistent in understanding the currently activated search space group, and the data transmission performance is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of wireless communication, and particularly relates to a search space group switching method and device. BACKGROUND

[0002] The communication system supports two search space groups (SS groups): search space group 0 (group 0) and search space group 1 (group 1), and dynamic adjustment of PDCCH monitoring period can be achieved through implicit or explicit switching between search space groups. However, when the PDCCH monitoring state changes, how to ensure that the terminal and the network side have consistent understanding of the currently activated search space group is a problem to be solved. SUMMARY

[0003] The purpose of the embodiments of the present application is to provide a search space group switching method and device, which can solve the problem of inconsistent understanding of the currently activated search space group between the terminal and the network side when the PDCCH monitoring state changes.

[0004] In order to solve the above technical problems, the present application is implemented as follows:

[0005] In a first aspect, a search space group switching method is provided, which is executed by a terminal, and the method comprises:

[0006] If a first condition is met, switching to a default search space group, wherein the default search space is any one or more search space groups configured by the network side or agreed by a protocol;

[0007] The first condition comprises at least one of the following:

[0008] Determining to start a DRX duration timer;

[0009] Determining to switch to a first non-dormant BWP;

[0010] The BWP inactivation timer expires.

[0011] In a second aspect, a search space group switching device is provided, comprising:

[0012] A first execution module is configured to switch to a default search space group if a first condition is met, wherein the default search space is any one or more search space groups configured by the network side or agreed by a protocol;

[0013] The first condition comprises at least one of the following:

[0014] Determining to start a discontinuous reception (DRX) duration timer;

[0015] Determining to switch to a first non-dormant BWP;

[0016] BWP inactivation timer expires.

[0017] In a third aspect, a terminal is provided, which comprises a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and the program or instructions, when executed by the processor, implement the steps of the method according to the first aspect.

[0018] In a fourth aspect, a readable storage medium is provided, which stores a program or instructions, and the program or instructions, when executed by a processor, implement the steps of the method according to the first aspect.

[0019] In a fifth aspect, a chip is provided, which comprises a processor and a communication interface, the communication interface and the processor are coupled, and the processor is configured to execute a network-side device program or instructions to implement the method according to the first aspect.

[0020] In a sixth aspect, a program product is provided, which is stored in a non-volatile storage medium, and the program product is executed by at least one processor to implement the method according to the first aspect.

[0021] In the embodiments of the present application, by switching to the network-side configuration or the protocol-agreed default search space group in the case of meeting the first condition, the terminal and the network side keep consistent understanding for the currently activated search space group, thereby improving the data transmission performance. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0023] Figure 2 A schematic diagram of a DRX cycle;

[0024] Figure 3 A flowchart of a search space group switching method according to an embodiment of the present application;

[0025] Figure 4 A schematic diagram of a search space group switching method according to Embodiment 1 of the present application;

[0026] Figure 5 A schematic diagram of a search space group switching method according to Embodiment 2 of the present application;

[0027] Figure 6 A schematic diagram of a search space group switching method according to Embodiment 3 of the present application;

[0028] Figure 7 A structural schematic diagram of a search space group switching apparatus according to an embodiment of the present application;

[0029] Figure 8 a schematic diagram of a terminal according to an embodiment of the present application;

[0030] Figure 9 a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0032] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second" are generally of a kind, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the front and rear associated objects.

[0033] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. However, the following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, although these technologies can also be applied outside the NR system application, such as 6th Generation (6G) communication systems. th

[0034] Figure 1 ​A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 can also be referred to as a terminal device or a user terminal (UE). The terminal 11 can be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a palm computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device, or a vehicle user equipment (VUE), a pedestrian user equipment (PUE), etc. The wearable device includes a bracelet, an earphone, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network side device 12 can be a base station or a core network. The base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or some other appropriate terminology in the art, so long as the same technical effects are achieved. The base station is not limited to a specific technical term, and it should be noted that only a base station in an NR system is taken as an example in the embodiments of the present application, but the specific type of the base station is not limited.

[0035] First, the communication terms related to the present application are introduced.

[0036] 1. Discontinuous Reception (DRX) basic model

[0037] A typical DRX cycle is as follows Figure 2The basic mechanism of DRX is to configure a UE in RRC_CONNECTED state with a DRX cycle. The DRX cycle consists of an "On Duration" and an "Opportunity for DRX". During the "On Duration", the UE listens to and receives PDCCH; during the "Opportunity for DRX", the UE does not listen to PDCCH to save power consumption.

[0038] If there is data arriving during the DRX duration, the DRX inactivity timer is started or restarted. During the running of the inactivity timer, the terminal needs to listen to PDCCH.

[0039] 2. DCP outside active time

[0040] DCP is the full name of DCI 2-6 scrambled by PS-RNTI (Power Saving-Radio Network Temporary Identifier).

[0041] In order to further save power under DRX configuration, DCP is configured before the DRX cycle. The Wake Up indication field in the DCP is used to indicate whether the UE starts the on duration timer of the next DRX cycle. Starting the on duration timer means that the UE needs to listen to PDCCH during the on duration timer, otherwise it does not listen to PDCCH. DCP can only be configured on the primary cell (Pcell). DCI 2-6 exists outside the active time. It should be noted that DCP can only be configured when the connected DRX (CDRX) is configured.

[0042] DCI format 2-6 contains two information fields:

[0043] 1) Wake-up indication: 1 bit, this field is used to indicate whether the UE starts the on duration timer of the next DRX cycle.

[0044] 2) Scell dormancy indication: 0, 1, 2, 3, 4, 5 bits, this field is used to indicate whether the UE's secondary cell (SCell) enters the dormant state (also known as dormancy behavior) under carrier aggregation (CA).

[0045] In addition, the SCell dormancy indication field in DCI 2-6 is used to indicate whether a SCell group switches to a dormant BWP in a SCell group unit. Each bit in the field corresponds to an indication of a SCell group.

[0046] The indication of SCell dormancy indication in DCI 2-6 and UE dormancy behavior are as follows:

[0047] When the indication is '0', the UE sets the active DL BWP on all SCells in a certain SCell group to the dormant BWP, and the UE does not monitor PDCCH on all SCells in the SCell group, but the UE can perform channel state information (CSI) measurement;

[0048] When the indication is '1', the UE sets the active DL BWP on all SCells in a certain SCell group to the non-dormant BWP, and the UE can monitor PDCCH on all SCells in the SCell group.

[0049] Note that there are two cases for the indication of '1', which need to be determined whether to switch to the first non-dormant BWP configured by the higher layer or continue on the current non-dormant BWP according to whether the active BWP before switching is a non-dormant BWP.

[0050] The Pcell has no dormancy behavior, only the Scell has.

[0051] 3. SCell dormancy indication in active time

[0052] In addition to the above-mentioned in the active time, the UE's dormancy behavior in the active time is indicated by the SCell dormancy indication field configured in DCI 2-6, and the SCell dormancy indication can also be performed in the active time by scheduling DCI format.

[0053] Case1 SCell dormancy indication: SCell dormancy indication (maximum 5 bits of SCell dormancy indication field) is performed by DCI format 1-1 or 0-1 to schedule PDSCH and SCell dormancy indication at the same time.

[0054] Case2 SCell dormancy indication: SCell dormancy indication is performed by DCI format 1-1 without scheduling PDSCH (reuse other scheduling-related fields, maximum 16 bits).

[0055] That is, in addition to the activation time, the UE can be instructed to switch to the sleep state by configuring a secondary cell sleep indication in the DCP, and within the activation time, the UE can be instructed to switch to the sleep state by Case 1 and Case 2 secondary cell sleep indications.

[0056] 4. DCP detection and UE behavior

[0057] Case 1: The UE is provided with a search space set to detect DCI format 2-6 on the Pcell, and the UE does not detect DCI format 2-6. The UE's behavior is determined by the value of the RRC parameter ps-Wakeup. When this parameter is not configured, the UE does not start the next DRX duration timer.

[0058] Case 2: The UE is provided with a search space set to detect DCI format 2-6 on the Pcell, and there are two cases: 1) the UE does not need to detect DCI 2-6, 2) there is no monitoring occasion (MO) of any DCP. The UE's behavior is to start the duration timer.

[0059] The search space group switching method and device provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings, specific embodiments and application scenarios.

[0060] Please refer to Figure 3 The embodiments of the present application provide a search space group switching method, which is executed by a terminal, and the method comprises:

[0061] Step 31: If the first condition is met, switch to a default search space group, wherein the default search space is any one or more search space groups configured by the network side or agreed by the protocol;

[0062] The first condition includes at least one of the following:

[0063] Determine to start the DRX duration timer;

[0064] Determine to switch to a first non-sleep BWP;

[0065] The BWP inactivation timer expires.

[0066] In the embodiments of the present application, the terminal switches to the default search space group configured by the network side or agreed by the protocol after meeting the first condition, so that the terminal and the network side have consistent understanding of the currently activated search space group, and the data transmission performance is improved.

[0067] In the embodiments of the present application, determining to start the DRX duration timer can also be described as determining to enter the DRX duration, both of which are different expressions of the same meaning.

[0068] In the embodiments of the present application, the BWP before switching to the first non-dormant BWP is not limited, and can be understood as switching from the first non-dormant BWP to the first non-dormant BWP or switching from the dormant BWP to the first non-dormant BWP.

[0069] Optionally, the first non-dormant BWP is a non-dormant BWP with a specific index, for example, a specific index firstOutsideActiveTimeBWP-Id and / or firstWithinActiveTimeBWP-Id configured by the network. It can be understood that if the first non-dormant BWP is a non-dormant BWP with a specific index, it is equivalent to switching from the dormant BWP to the first non-dormant BWP.

[0070] Optionally, in the embodiments of the present application, if the first condition is met, the default search space group is switched to, wherein the PDCCH monitoring period of the search space group before switching to the default search space group is greater than the PDCCH monitoring period of the default search space group. That is, the PDCCH monitoring period of the default search space group is guaranteed to be less than the PDCCH monitoring period of the search space group before switching to the default search space group.

[0071] It should be noted that, optionally, the PDCCH monitoring period of the dormant search space group can be infinite, which is equivalent to the terminal not needing to monitor the PDCCH.

[0072] In the above manner, data transmission can be facilitated and fast, and data transmission delay can be reduced. For example, the currently activated search space group is the dormant search space group, and the terminal does not monitor the PDCCH or does not monitor a specific PDCCH on the dormant search space group. When the first condition is met, the terminal needs to switch to the default search space group to ensure data transmission performance and reduce data transmission delay. Wherein, when the first condition is met, it means that there is a possibility of subsequent data transmission, at this time, the default search space group with a smaller PDCCH monitoring period is switched to, so that when the terminal enters the active state, the PDCCH can be monitored more quickly.

[0073] In an embodiment of the present application, optionally, the default search space group does not include a dormant search space group, wherein in the case of applying the dormant search space group, the terminal does not perform PDCCH monitoring or does not need to perform specific PDCCH monitoring. The specific PDCCH can be a PDCCH carrying only CSS and / or USS of type 3. For example, the default search space group can be search space group 0 and / or search space group 1, that is, in the case of applying the default search space group, the terminal can perform PDCCH monitoring.

[0074] In some embodiments of the present application, optionally, in the case of determining to start the DRX duration timer, the switching to the default search space group includes at least one of the following:

[0075] 1) before starting the DRX duration timer, completing switching to the default search space group;

[0076] If switching to the default search space group has been completed before starting the DRX duration timer, the default search space group can be directly applied after starting the DRX duration timer to perform PDCCH monitoring, and if there is data transmission after starting the DRX duration timer, the data transmission can be performed immediately, thereby reducing the data transmission delay caused by the search space group switching delay or application delay and improving the data transmission performance.

[0077] 2) before starting the DRX duration timer, starting to perform the operation of switching to the default search space group;

[0078] If the operation of switching to the default search space group is started before starting the DRX duration timer, when the DRX duration timer is started, it is possible that switching to the default search space group has been completed or substantially completed, and if there is data transmission, the data transmission delay caused by the search space group switching can also be reduced, thereby improving the data transmission performance.

[0079] 3) before starting the DRX duration timer, starting to perform the operation of switching to the default search space group within a preset time period;

[0080] Optionally, the preset time period is greater than or equal to a switching delay or an application delay of a search space group. If the operation of switching to the default search space group is started before the preset time period before starting the DRX duration timer, switching to the default search space group can be completed before starting the DRX duration timer, and the default search space group can be directly applied when starting the DRX duration timer to perform PDCCH monitoring. If data transmission occurs after starting the DRX duration timer, data transmission can be performed immediately, thereby reducing data transmission delay caused by switching of the search space group and improving data transmission performance.

[0081] 4) starting the operation of switching to the default search space group when it is determined to start the DRX duration timer;

[0082] If the operation of switching to the default search space group is started when it is determined to start the DRX duration timer, switching to the default search space group can be completed or substantially completed when the DRX duration timer is started. If data transmission occurs after starting the DRX duration timer, data transmission delay caused by switching of the search space group can be reduced, and data transmission performance can be improved. The determination method of starting the DRX duration timer can be through explicit reception of indication signaling or implicit triggering.

[0083] 5) starting the operation of switching to the default search space group after it is determined to start the DRX duration timer.

[0084] In some embodiments of the present application, the first condition includes: in a case where it is determined to switch to a first non-dormant BWP, the switching to the default search space group includes at least one of the following:

[0085] 1) completing switching to the default search space group before switching to the first non-dormant BWP;

[0086] If switching to the default search space group is completed before switching to the first non-dormant BWP, the default search space group can be directly applied after switching to the first non-dormant BWP to perform PDCCH monitoring. If data transmission occurs after switching to the first non-dormant BWP, data transmission can be performed immediately, thereby reducing data transmission delay caused by switching of the search space group and improving data transmission performance.

[0087] 2) starting the operation of switching to the default search space group when it is determined to switch to the first non-dormant BWP;

[0088] If it is determined to switch to the first non-dormant BWP, the operation of switching to the default search space group is started. When switching to the first non-dormant BWP, it is possible that the switching to the default search space group has been completed or is substantially completed. If there is data transmission after switching to the first non-dormant BWP, the data transmission delay caused by the switching of the search space group can be reduced, and the data transmission performance can be improved. The determination method for determining to switch to the first non-dormant BWP can be through explicit reception indication signaling or implicit triggering.

[0089] 3) After determining to switch to the first non-dormant BWP, the operation of switching to the default search space group is started.

[0090] In some embodiments of the present application, in the case where the first condition includes that the BWP inactivation timer expires, the switching to the default search space group includes:

[0091] 1) When the BWP inactivation timer expires, the operation of switching to the default search space group is started;

[0092] 2) After the BWP inactivation timer expires, the operation of switching to the default search space group is started.

[0093] In the embodiments of the present application, optionally, whether to start the DRX duration timer is determined according to at least one of the following:

[0094] The wake-up indication in the detected first DCI, wherein the wake-up indication indicates whether to start the DRX duration timer;

[0095] Whether the DRX function is configured;

[0096] Whether the first DCI is detected;

[0097] Whether the first DCI needs to be detected;

[0098] The value of PS-wakeup (power saving-wake up);

[0099] The first DCI is scrambled by PS-RNTI. Optionally, the first DCI is DCI 2-6.

[0100] In the embodiments of the present application, optionally, in the case where only the DRX function is configured, the method for determining to start the DRX duration timer includes that the terminal determines to start the DRX duration timer before each DRX duration.

[0101] In the embodiments of the present application, optionally, it is determined whether to switch to the first dormant BWP according to the secondary cell dormancy indication, wherein the secondary cell dormancy indication is carried in the second DCI, and the second DCI includes at least one of the following:

[0102] The first DCI scrambled by the PS-RNTI;

[0103] The DCI scheduling data;

[0104] The DCI not scheduling data.

[0105] For example, the second DCI can be any one or more of the DCI 2-6, the DCI 1-1 or the DCI 0-1 scheduling data, and the DCI 1-1 not scheduling data.

[0106] In the embodiments of the present application, optionally, in the case where the first condition includes determining to switch to the first non-dormant BWP, the switching of the default search space group includes at least one of the following:

[0107] 1) Switching the cell of the switching cell group in which the cell of the secondary cell group indicated by the secondary cell dormancy indication to switch to the first non-dormant BWP to the default search space group;

[0108] Optionally, the first DCI and / or the DCI scheduling data indicates whether to switch to the first non-dormant BWP in units of secondary cell groups, so that, optionally, if the first DCI or the DCI scheduling data indicates whether to switch to the first non-dormant BWP, the cell of the switching cell group in which the cell of the secondary cell group indicated by the secondary cell dormancy indication to switch to the first non-dormant BWP is switched to the default search space group.

[0109] In the embodiments of the present application, optionally, if the first DCI indicates to switch to the first non-dormant BWP, the ID of the first non-dormant BWP is firstOutsideActiveTimeBWP-Id.

[0110] In the embodiments of the present application, optionally, if the DCI scheduling data indicates to switch to the first non-dormant BWP, the ID of the first non-dormant BWP is firstWithinActiveTimeBWP-Id.

[0111] 2) Switching the cell of the switching cell group in which the secondary cell indicated by the secondary cell dormancy indication to switch to the first non-dormant BWP to the default search space group;

[0112] Optionally, the DCI without scheduling data indicates whether to switch to the first non-dormant BWP in units of the secondary cell, and thus, optionally, if the DCI without scheduling data is used to indicate whether to switch to the first non-dormant BWP, the cells of the switching cell group in which the secondary cell indicated by the secondary cell dormancy indication to switch to the first non-dormant BWP are switched to the default search space group.

[0113] In the embodiments of the present application, optionally, if the DCI without scheduling data is used to indicate switching to the first non-dormant BWP, the ID of the first non-dormant BWP is firstWithinActiveTimeBWP-Id.

[0114] In the embodiments of the present application, optionally, if the second condition is met, the operation of switching to the default search space group or not performing search space group switching is performed; wherein not performing search space group switching means maintaining the currently activated search space group unchanged.

[0115] The second condition includes at least one of the following:

[0116] Determining not to start the DRX duration timer;

[0117] Entering a time of not monitoring PDCCH;

[0118] Entering a time of not monitoring a specific PDCCH;

[0119] Determining to switch to a dormant BWP.

[0120] The specific PDCCH can be a PDCCH carrying type 3 CSS and / or USS.

[0121] In the embodiments of the present application, optionally, whether to start the DRX duration timer is determined according to at least one of the following:

[0122] The wake-up indication in the detected first DCI;

[0123] Whether the DRX function is configured;

[0124] Whether the first DCI is detected;

[0125] Whether the first DCI needs to be detected;

[0126] The value of PS-wakeup;

[0127] The first DCI is scrambled by PS-RNTI.

[0128] In the embodiments of the present application, optionally, in the case where the second condition includes determining not to start the DRX duration timer, the switching to the default search space group includes at least one of the following:

[0129] start performing the operation of switching to the default search space set upon determining not to start the DRX duration timer;

[0130] start performing the operation of switching to the default search space set upon determining to start the DRX duration timer.

[0131] In the embodiments of the present application, optionally, in the case where the second condition includes: entering a time of not monitoring PDCCH, the switching to the default search space set includes at least one of the following:

[0132] start performing the operation of switching to the default search space set upon entering the time of not monitoring PDCCH

[0133] start performing the operation of switching to the default search space set upon entering the time of not monitoring PDCCH.

[0134] In the embodiments of the present application, optionally, in the case where the second condition includes: entering a time of not monitoring PDCCH, the switching to the default search space set includes at least one of the following:

[0135] start performing the operation of switching to the default search space set upon entering the time of not monitoring PDCCH

[0136] start performing the operation of switching to the default search space set upon entering the time of not monitoring PDCCH.

[0137] In the embodiments of the present application, optionally, the time of not monitoring PDCCH includes: a time other than an active time.

[0138] In the embodiments of the present application, optionally, according to a secondary cell dormancy indication, it is determined whether to switch to a dormant BWP, wherein the secondary cell dormancy indication is carried in a second DCI, and the second DCI includes at least one of the following:

[0139] a first DCI scrambled by a PS-RNTI;

[0140] a DCI scheduling data;

[0141] a DCI not scheduling data.

[0142] In the embodiments of the present application, optionally, in the case where the second condition includes: determining to switch to the dormant BWP, the switching to the default search space set includes at least one of the following:

[0143] 1) switching a cell of a switching cell group, in which a cell of a secondary cell group indicated by the secondary cell dormancy indication to switch to the dormant BWP, to a default search space set;

[0144] Optionally, the first DCI and / or the DCI scheduling data indicates whether to switch to the dormant BWP in units of the secondary cell group, and thus, optionally, if the first DCI or the DCI scheduling data indicates whether to switch to the dormant BWP, the cell in the switching cell group where the cell of the secondary cell group indicated to switch to the dormant BWP is switched to the default search space group.

[0145] 2) the cell in the switching cell group where the secondary cell indicated to switch to the dormant BWP by the secondary cell dormancy indication is switched to the default search space group.

[0146] Optionally, the DCI not scheduling data indicates whether to switch to the dormant BWP in units of the secondary cell, and thus, optionally, if the DCI not scheduling data indicates whether to switch to the dormant BWP, the cell in the switching cell group where the secondary cell indicated to switch to the dormant BWP is switched to the default search space group.

[0147] In the embodiments of the present application, optionally, the switching to the default search space group further comprises:

[0148] The PDCCH monitoring behavior of the terminal is determined according to at least one of the following:

[0149] whether the switching to the default search space group is completed;

[0150] whether the terminal is in the active time;

[0151] whether the terminal is in the dormant state.

[0152] For example, the determination of the PDCCH monitoring behavior of the terminal comprises at least one of the following:

[0153] In the case that the terminal has completed the switching to the default search space and is in the active state, the PDCCH monitoring behavior is performed according to the PDCCH monitoring occasion corresponding to the default search space group;

[0154] In the case that the terminal has completed the switching to the default search space and is in the active state and is in the non-dormant state, the PDCCH monitoring behavior is performed according to the PDCCH monitoring occasion corresponding to the default search space group; wherein the active BWP in the non-dormant state is the first non-dormant BWP.

[0155] It should be noted that, in the embodiments of the present application, optionally, the search space carrying the first DCI is not linked to any search space group, that is, in the case that the first DCI is configured in the current active BWP, the terminal needs to always monitor the search space of the first DCI regardless of the switching to any search space group.

[0156] The search space group switching method of the embodiments of the present application is illustrated below in combination with specific application scenarios.

[0157] Embodiment 1 of the present application:

[0158] Please refer to Figure 4 In the embodiments of the present application, the network configures three search space groups (search space group 0, search space group 1 and dormant search space group respectively) and configures the DRX function, but does not configure the DCI 2-6 (first DCI), so the terminal switches to the default search space group before entering the DRX duration of each DRX cycle. It should be noted that even if there is a PDCCH monitoring occasion, the terminal will not perform PDCCH monitoring outside the active time. Only after entering the DRX duration, the terminal performs PDCCH monitoring according to the PDCCH monitoring occasion corresponding to the default search space group.

[0159] In the embodiments of the present application, the protocol stipulates that the default search space group is search space group 1.

[0160] Embodiment 2 of the present application:

[0161] Please refer to Figure 5 In the embodiments of the present application, the network configures three search space groups (search space group 0, search space group 1 and dormant search space group respectively) and configures the DRX function, but does not configure the DCI 2-6 (first DCI), so the terminal switches to the default search space group when entering the active time, so as to be able to immediately perform data scheduling after entering the active time. It should be noted that even if there is a PDCCH monitoring occasion, the terminal will not perform PDCCH monitoring outside the active time. Only after entering the active time, the terminal performs PDCCH monitoring according to the PDCCH monitoring occasion corresponding to the default search space group.

[0162] In the embodiments of the present application, the protocol stipulates that the default search space group is search space group 0.

[0163] Embodiment 3 of the present application:

[0164] Please refer to Figure 6 In the embodiments of the present application, the network configures three search space groups (search space group 0, search space group 1 and dormant search space group respectively) and configures the DRX function;

[0165] In case 1 (DCI scheduling data) and case 2 (DCI not scheduling data), the secondary cell dormancy indication is configured; in addition, the terminal is configured with three dormant secondary cell groups.

[0166] The network does not configure the DCI 2-6 (first DCI).

[0167] When the secondary cell group dormancy indication bitmap in the DCI of the scheduling data received by the terminal is 011, the terminal switches the search space group of the cell of the switching cell group in which all the secondary cells of the secondary cell group (SCell group 2 and SCell group 3) switched to the non-dormant BWP to the default search space group.

[0168] In another embodiment of the present application, the default search space group is switched only when it is indicated to switch to the non-dormant BWP and switch from the dormant BWP to the non-dormant BWP.

[0169] It should be noted that the search space group switching method provided by the embodiments of the present application can be executed by a search space group switching device, or a control module in the search space group switching device for executing the search space group switching method. In the embodiments of the present application, the search space group switching device executes the search space group switching method, and the search space group switching device provided by the embodiments of the present application is described.

[0170] Please refer to Figure 7 The embodiments of the present application further provide a search space group switching device 70, comprising:

[0171] A first execution module 71 is configured to switch to a default search space group if a first condition is met, wherein the default search space is any one or more search space groups configured by a network side or agreed by a protocol.

[0172] The first condition includes at least one of the following:

[0173] It is determined that the DRX duration timer is started;

[0174] It is determined that the first non-dormant BWP is switched to;

[0175] The BWP inactivation timer expires.

[0176] In the embodiments of the present application, by switching to the default search space group configured by the network side or agreed by the protocol when the first condition is met, the terminal and the network side keep consistent understanding for the currently activated search space group, thereby improving the data transmission performance.

[0177] Optionally, the first non-dormant BWP is a non-dormant BWP with a specific index.

[0178] Optionally, in the case where the first condition includes determining that the DRX duration timer is started, the first execution module 71 performs at least one of the following:

[0179] complete switching to the default search space set before starting the DRX duration timer;

[0180] start performing the operation of switching to the default search space set before starting the DRX duration timer;

[0181] start performing the operation of switching to the default search space set before a preset time period before starting the DRX duration timer;

[0182] start performing the operation of switching to the default search space set upon determining to start the DRX duration timer;

[0183] start performing the operation of switching to the default search space set after determining to start the DRX duration timer.

[0184] The preset time period is greater than or equal to a switching delay or an application delay of the search space set.

[0185] Optionally, the first condition includes: determining to switch to a first non-dormant BWP, and the first execution module 71 performs at least one of the following:

[0186] complete switching to the default search space set before switching to the first non-dormant BWP;

[0187] start performing the operation of switching to the default search space set upon determining to switch to the first non-dormant BWP;

[0188] start performing the operation of switching to the default search space set after determining to switch to the first non-dormant BWP.

[0189] Optionally, the first condition includes: expiration of a BWP inactivation timer, and the first execution module 71 performs at least one of the following:

[0190] start performing the operation of switching to the default search space set upon expiration of the BWP inactivation timer;

[0191] start performing the operation of switching to the default search space set after expiration of the BWP inactivation timer.

[0192] Optionally, the search space set switching apparatus 70 further includes:

[0193] a second execution module, configured to switch to the default search space set or not perform search space set switching if a second condition is met;

[0194] The second condition includes at least one of the following:

[0195] determining not to start the DRX duration timer;

[0196] the time of entering the non-monitoring PDCCH;

[0197] the time of entering the non-monitoring specific PDCCH;

[0198] determining to switch to the dormant BWP.

[0199] Optionally, the search space group switching apparatus 70 further comprises:

[0200] a first determining module, configured to determine whether to start the DRX duration timer according to at least one of the following:

[0201] the wake-up indication in the detected first DCI;

[0202] whether the DRX function is configured;

[0203] whether the first DCI is detected;

[0204] whether the first DCI needs to be detected;

[0205] the value of PS-wakeup;

[0206] wherein, the first DCI is scrambled by PS-RNTI.

[0207] Optionally, the search space group switching apparatus 70 further comprises:

[0208] a second determining module, configured to determine to start the DRX duration timer before each DRX duration when only the DRX function is configured.

[0209] Optionally, the search space group switching apparatus 70 further comprises:

[0210] a third determining module, configured to determine whether to switch to the first dormant BWP or the dormant BWP according to the secondary cell dormancy indication, wherein the secondary cell dormancy indication is carried in the second DCI, and the second DCI comprises at least one of the following:

[0211] the first DCI scrambled by PS-RNTI;

[0212] the DCI scheduling data;

[0213] the DCI not scheduling data.

[0214] Optionally, the first execution module executes at least one of the following:

[0215] switch a cell of a switching cell group, in which a cell of a secondary cell group indicated by the secondary cell dormancy indication to switch to a first non-dormant BWP, to a default search space group;

[0216] switch a cell of a switching cell group, in which a cell of a secondary cell group indicated by the secondary cell dormancy indication to switch to a first non-dormant BWP, to a default search space group;

[0217] switch a cell of a switching cell group, in which a cell of a secondary cell group indicated by the secondary cell dormancy indication to switch to a first non-dormant BWP, to a default search space group;

[0218] switch a cell of a switching cell group, in which a cell of a secondary cell group indicated by the secondary cell dormancy indication to switch to a first non-dormant BWP, to a default search space group.

[0219] Optionally, the search space group switching apparatus 70 further includes:

[0220] a fourth determining module configured to determine the PDCCH monitoring behavior of the terminal according to at least one of the following:

[0221] whether the switching to the default search space group is completed;

[0222] whether the terminal is in an active time;

[0223] whether the terminal is in a dormant state.

[0224] The search space group switching apparatus in the embodiments of the present application can be an apparatus, or a component, an integrated circuit, or a chip in a terminal. The apparatus can be a mobile terminal, or a non-mobile terminal. Exemplarily, the mobile terminal can include, but is not limited to, the types of the terminal 11 listed above, and the non-mobile terminal can be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc., and the embodiments of the present application do not make specific limitations.

[0225] The search space group switching apparatus in the embodiments of the present application can be an apparatus with an operating system. The operating system can be an Android operating system, an ios operating system, or other possible operating systems, and the embodiments of the present application do not make specific limitations.

[0226] The search space group switching apparatus provided by the embodiments of the present application can implement the various processes of the method embodiments and achieve the same technical effects, and thus, details are not repeated here. Figure 3

[0227] As Figure 8 ​As shown, the terminal 800 includes a processor 801, a memory 802, and a program or instruction stored in the memory 802 and executable on the processor 801. The program or instruction is executed by the processor 801 to implement the processes of the search space set switching method embodiments described above, and achieve the same technical effects. To avoid repetition, details are not described herein.

[0228] Figure 9 A hardware structure of a terminal according to an embodiment of the present application is shown in FIG. 9. The terminal 90 includes, but is not limited to, a radio frequency unit 91, a network module 92, an audio output unit 93, an input unit 94, a sensor 95, a display unit 96, a user input unit 97, an interface unit 98, a memory 99, and a processor 910.

[0229] Those skilled in the art can understand that the terminal 90 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 910 through a power management system, so as to realize functions such as power management, discharge, and power consumption management through the power management system. Figure 9 The terminal structure shown in FIG. 9 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than shown, or combine certain components, or have a different arrangement of components, which is not described herein.

[0230] It should be understood that in the embodiments of the present application, the input unit 94 can include a graphics processing unit (GPU) 941 and a microphone 942. The graphics processing unit 941 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 96 can include a display panel 961, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 97 includes a touch panel 971 and other input devices 972. The touch panel 971 is also called a touch screen. The touch panel 971 can include a touch detection device and a touch controller. The other input devices 972 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, etc., which are not described herein.

[0231] In the embodiments of the present application, the radio frequency unit 91 receives downlink data from a network side device and processes the data by the processor 910. In addition, the radio frequency unit 91 sends uplink data to the network side device. Generally, the radio frequency unit 91 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0232] The memory 99 can be used to store software programs or instructions and various data. The memory 99 can mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), etc. In addition, the memory 99 can include a high-speed random access memory, and can also include a non-volatile memory, which can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. For example, at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state memory device.

[0233] The processor 910 can include one or more processing units; optionally, the processor 910 can integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communication, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 910.

[0234] The processor 910 is configured to switch to a default search space group if a first condition is met, wherein the default search space is any one or more search space groups configured by a network side or agreed by a protocol.

[0235] The first condition includes at least one of the following:

[0236] Determine to start a DRX duration timer.

[0237] Determine to switch to a first non-dormant BWP.

[0238] The BWP inactivation timer expires.

[0239] In the embodiments of the present application, by switching to a default search space group configured by a network side or agreed by a protocol under the condition that a first condition is met, the terminal and the network side keep consistent understanding for the currently activated search space group, thereby improving the data transmission performance.

[0240] Optionally, the first non-dormant BWP is a non-dormant BWP with a specific index.

[0241] Optionally, in a case where the first condition includes determining to start a DRX duration timer, the switching to a default search space group includes at least one of the following:

[0242] complete switching to the default search space set before starting the DRX duration timer;

[0243] start an operation of switching to the default search space set before starting the DRX duration timer;

[0244] start an operation of switching to the default search space set before a preset time period before starting the DRX duration timer;

[0245] start an operation of switching to the default search space set upon determining to start the DRX duration timer;

[0246] start an operation of switching to the default search space set after determining to start the DRX duration timer.

[0247] The preset time period is greater than or equal to a switching delay or an application delay of the search space set.

[0248] Optionally, the first condition includes that, in a case where it is determined to switch to a first non-dormant BWP, the switching to the default search space set includes at least one of the following:

[0249] complete switching to the default search space set before switching to the first non-dormant BWP;

[0250] start an operation of switching to the default search space set upon determining to switch to the first non-dormant BWP;

[0251] start an operation of switching to the default search space set after determining to switch to the first non-dormant BWP.

[0252] Optionally, the first condition includes that, in a case where a BWP inactivation timer expires, the switching to the default search space set includes at least one of the following:

[0253] start an operation of switching to the default search space set upon expiration of the BWP inactivation timer;

[0254] start an operation of switching to the default search space set after expiration of the BWP inactivation timer.

[0255] Optionally, the processor 910 is further configured to switch to the default search space set or not perform search space set switching if a second condition is met.

[0256] The second condition includes at least one of the following:

[0257] determining not to start the DRX duration timer;

[0258] Time to enter into not monitoring a physical downlink control channel (PDCCH);

[0259] Time to enter into not monitoring a specific PDCCH;

[0260] Determining to switch to a dormant BWP.

[0261] Optionally, the processor 910 is further configured to determine whether to start a DRX duration timer according to at least one of the following:

[0262] Wake-up indication in the detected first DCI;

[0263] Whether a DRX function is configured;

[0264] Whether the first DCI is detected;

[0265] Whether the first DCI needs to be detected;

[0266] Value of PS-wakeup;

[0267] The first DCI is scrambled by PS-RNTI.

[0268] Optionally, the processor 910 is further configured to, in the case of only configuring a DRX function, determine to start the DRX duration timer before each DRX duration.

[0269] Optionally, the processor 910 is further configured to determine whether to switch to a first dormant BWP or a dormant BWP according to a secondary cell dormancy indication, wherein the secondary cell dormancy indication is carried in a second DCI, and the second DCI includes at least one of the following:

[0270] The first DCI scrambled by PS-RNTI;

[0271] DCI scheduling data;

[0272] DCI not scheduling data.

[0273] Optionally, the switching is a default search space group including at least one of the following:

[0274] Switching a cell of a switching cell group, in which a cell of a secondary cell group indicated by the secondary cell dormancy indication to switch to a first non-dormant BWP, to a default search space group;

[0275] Switching a cell of a switching cell group, in which a secondary cell indicated by the secondary cell dormancy indication to switch to a first non-dormant BWP, to a default search space group;

[0276] switch a cell of a switching cell group, in which a cell of a secondary cell group indicated by the secondary cell dormancy indication to switch to a dormant BWP is located, to a default search space group;

[0277] switch a cell of a switching cell group, in which a cell of a secondary cell group indicated by the secondary cell dormancy indication to switch to a dormant BWP is located, to a default search space group.

[0278] Optionally, the default search space group does not include a dormant search space group, wherein in a case where the dormant search space group is applied, the terminal does not perform PDCCH monitoring or does not need to perform specific PDCCH monitoring.

[0279] Optionally, the processor 910 is further configured to determine the PDCCH monitoring behavior of the terminal according to at least one of the following:

[0280] whether switching to the default search space group is completed;

[0281] whether an active time is in;

[0282] whether a dormant state is in.

[0283] Embodiments of the present application also provide a readable storage medium, the readable storage medium stores a program or instructions, the program or instructions are executed by a processor to implement various processes of the search space group switching method embodiments, and the same technical effects can be achieved. To avoid repetition, details are not repeated here.

[0284] The processor is the processor in the terminal in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, etc.

[0285] Embodiments of the present application further provide a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is configured to run a network side device program or instructions to implement various processes of the search space group switching method embodiments, and the same technical effects can be achieved. To avoid repetition, details are not repeated here.

[0286] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system level chip, a system chip, a chip system or a system on chip, etc.

[0287] The embodiment of the present application further provides a program product stored in a nonvolatile storage medium, which is executed by at least one processor to realize the processes of the search space group switching method embodiment, and achieves the same technical effects. To avoid repetition, details are not described herein.

[0288] It should be noted that, in this document, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the statement "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be pointed out that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order, for example, the described method can be performed in an order different from that described, and various steps can be added, omitted, or combined. In addition, features described with reference to certain examples can be combined in other examples.

[0289] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and necessary general hardware platforms, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes a plurality of instructions for making a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) execute the methods described in the various embodiments of the present application.

[0290] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, which are only illustrative and not limiting. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims, which all belong to the protection scope of the present application.

Claims

1. A method for switching search space groups, executed by a terminal, characterized in that, The method includes: If the first condition is met, the PDCCH monitoring is switched to the default search space group. The network is configured with three search space groups, and the default search space group is search space group 0. The first condition includes: BWP inactive timer expired.

2. The method according to claim 1, characterized in that, The first condition further includes: determining to enable the discontinuous reception DRX duration timer, wherein switching to the default search space group includes at least one of the following: Before starting the DRX duration timer, complete the switch to the default search space group; Before starting the DRX duration timer, begin the process of switching to the default search space group; Before the preset duration before the DRX duration timer is started, the operation of switching to the default search space group is initiated; When the DRX duration timer is determined to be enabled, the operation of switching to the default search space group begins. After confirming that the DRX duration timer is enabled, the operation of switching to the default search space group begins; The preset duration is greater than or equal to the switching delay or application delay of the search space group.

3. The method according to claim 1, characterized in that, The first condition further includes: determining to switch to the first non-dormant BWP, wherein the switch to the default search space group includes at least one of the following: Before switching to the first non-dormant BWP, complete the switch to the default search space group; Upon determining to switch to the first non-dormant BWP, the operation of switching to the default search space group begins; After determining to switch to the first non-dormant BWP, the operation of switching to the default search space group begins.

4. The method according to claim 3, characterized in that, The first non-dormant BWP is a non-dormant BWP with a specific index.

5. The method according to claim 1, characterized in that, The switching to the default search space group includes at least one of the following: When the BWP inactive timer expires, the operation of switching to the default search space group will begin. After the BWP inactivity timer expires, the operation to switch to the default search space group will begin.

6. The method according to claim 1, characterized in that, Also includes: If the second condition is met, then switch to the default search space group or do not perform a search space group switch; The second condition includes at least one of the following: Make sure to disable the DRX duration timer; The time to enter the Physical Downlink Control Channel (PDCCH) without listening; Enter a time period where specific PDCCHs are not monitored; Confirm switching to hibernation BWP.

7. The method according to claim 1 or 6, characterized in that, Determine whether to enable the DRX duration timer based on at least one of the following: The wake-up indication detected in the first DCI; Is DRX functionality configured? Was the first DCI detected? Is it necessary to test the first DCI? The value of PS-wakeup; The first DCI is scrambled by PS-RNTI.

8. The method according to claim 2, characterized in that, When only the DRX function is configured, the method for determining whether to enable the DRX duration timer includes: The terminal determines to start the DRX duration timer before each DRX duration.

9. The method according to claim 1 or 6, characterized in that, Based on the secondary cell hibernation indication, it is determined whether to switch to the first hibernation BWP or the hibernation BWP, wherein the secondary cell hibernation indication is carried in the second DCI, and the second DCI includes at least one of the following: The first DCI is scrambled by the Power-Saving Wireless Network Temporary Identifier (PS-RNTI); DCI for scheduling data; DCI that does not schedule data.

10. The method according to claim 9, characterized in that, The switching to the default search space group includes at least one of the following: The cell in the handover cell group where the cell of the secondary cell group indicated by the secondary cell hibernation indicator to be switched to the first non-hibernation BWP is located is switched to the default search space group; The cell in the handover cell group where the secondary cell indicated by the secondary cell dormancy indicator is switched to the first non-dormant BWP is switched to the default search space group; The cell in the handover cell group of the secondary cell group that will be switched to a dormant BWP as indicated by the secondary cell dormancy indicator will be switched to the default search space group; The cell in the handover cell group of the secondary cell that will be switched to a dormant BWP as indicated by the secondary cell dormant indicator will be switched to the default search space group.

11. The method according to claim 1, characterized in that, The default search space group does not include the hibernation search space group. When the hibernation search space group is applied, the terminal does not perform PDCCH monitoring or does not need to perform specific PDCCH monitoring.

12. The method according to claim 1, characterized in that, The process of switching to the default searchspace group also includes: The PDCCH listening behavior of the terminal is determined based on at least one of the following: Has the switch to the default search space group been completed? Is it currently in activation period? Is it in a dormant state? 13. A search space group switching device, characterized in that, include: The first execution module is used to switch to the default search space group for PDCCH monitoring if the first condition is met. The network is configured with three search space groups, and the default search space group is search space group 0. The first condition includes: BWP inactive timer expired.

14. The apparatus according to claim 13, characterized in that, The first condition further includes: determining to enable the discontinuous reception DRX duration timer, and the first execution module performing at least one of the following: Before starting the DRX duration timer, complete the switch to the default search space group; Before starting the DRX duration timer, begin the process of switching to the default search space group; Before the preset duration before the DRX duration timer is started, the operation of switching to the default search space group is initiated; When the DRX duration timer is determined to be enabled, the operation of switching to the default search space group begins. After confirming that the DRX duration timer is enabled, the operation of switching to the default search space group begins; The preset duration is greater than or equal to the switching delay or application delay of the search space group.

15. The apparatus according to claim 13, characterized in that, The first condition further includes: determining to switch to the first non-hibernating BWP, and the first execution module performing at least one of the following: Before switching to the first non-dormant BWP, complete the switch to the default search space group; Upon determining to switch to the first non-dormant BWP, the operation of switching to the default search space group begins; After determining to switch to the first non-dormant BWP, the operation of switching to the default search space group begins.

16. The apparatus according to claim 13, characterized in that, If the first condition includes the expiration of the BWP inactive timer, the first execution module performs at least one of the following: When the BWP inactive timer expires, the operation of switching to the default search space group will begin. After the BWP inactivity timer expires, the operation to switch to the default search space group will begin.

17. The apparatus according to claim 13, characterized in that, Also includes: The second execution module is used to switch to the default search space group or not perform the search space group switching if the second condition is met. The second condition includes at least one of the following: Make sure to disable the DRX duration timer; Enter the time when PDCCH is not being listened to; Enter a time period where specific PDCCHs are not monitored; Confirm switching to hibernation BWP.

18. The apparatus according to claim 13 or 17, characterized in that, Also includes: The first determining module is used to determine whether to enable the DRX duration timer based on at least one of the following: The wake-up indication detected in the first DCI; Is DRX functionality configured? Was the first DCI detected? Is it necessary to test the first DCI? The value of PS-wakeup; The first DCI is scrambled by PS-RNTI.

19. The apparatus according to claim 13, characterized in that, Also includes: The third determining module is used to determine whether to switch to the first dormant BWP or a dormant BWP based on the secondary cell dormancy indication, wherein the secondary cell dormancy indication is carried in the second DCI, and the second DCI includes at least one of the following: The first DCI is scrambled by PS-RNTI; DCI for scheduling data; DCI that does not schedule data.

20. The apparatus according to claim 19, characterized in that, The first execution module performs at least one of the following: The cell in the handover cell group where the cell of the secondary cell group indicated by the secondary cell hibernation indicator to be switched to the first non-hibernation BWP is located is switched to the default search space group; The cell in the handover cell group where the secondary cell indicated by the secondary cell dormancy indicator is switched to the first non-dormant BWP is switched to the default search space group; The cell in the handover cell group of the secondary cell group that will be switched to a dormant BWP as indicated by the secondary cell dormancy indicator will be switched to the default search space group; The cell in the handover cell group of the secondary cell that will be switched to a dormant BWP as indicated by the secondary cell dormant indicator will be switched to the default search space group.

21. The apparatus according to claim 13, characterized in that, Also includes: The fourth determination module is used to determine the PDCCH listening behavior of the terminal based on at least one of the following: Has the switch to the default search space group been completed? Is it currently in activation period? Is it in a dormant state? 22. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the search space group switching method as described in any one of claims 1 to 12.

23. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the search space group switching method as described in any one of claims 1 to 12.

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