CN116233878A

CN116233878A - Search space group switching method and device, electronic equipment and storage medium

Info

Publication number: CN116233878A
Application number: CN202111477437.0A
Authority: CN
Inventors: 杨蓓; 朱剑驰; 佘小明; 谢伟良; 王庆扬
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2023-06-06

Abstract

The disclosure provides a search space group switching method, a search space group switching device, electronic equipment and a storage medium, and relates to the technical field of communication. The method comprises the following steps: the method comprises the steps that a terminal receives a signaling carrying search space group switching configuration information sent by a base station, wherein the search space group switching configuration information is used for realizing switching of a search space group; and the terminal executes the switching of the search space group according to the search space group switching configuration information. The method and the device can realize switching of the search space group according to the DRX configuration, and meet the energy-saving and novel business requirements.

Description

Search space group switching method and device, electronic equipment and storage medium

Technical Field

The disclosure relates to the technical field of communication, and in particular relates to a search space group switching method, a search space group switching device, electronic equipment and a storage medium.

Background

Augmented reality and virtual reality (AR/VR) are one of the important application scenarios/services in 5G, and will be fully evolved to augmented reality (XR) in the 5G-Advanced and 6G ages.

XR services place demands on the network for high transmission rates, low latency, and high reliability, which presents a significant challenge for existing NR networks. In addition, for XR devices (e.g., XR glasses), the size and weight design will determine whether the device can be worn for extended periods of time. There will be more restrictions on battery capacity and heat dissipation than conventional terminals. Therefore, reducing the energy consumption of high-speed transmission XR services is one of the main directions of standard research.

The NR standard supports DRX and DCP energy saving technology, but the search space configuration scheme provided in the related technology cannot well adapt to XR service jitter, how to enhance the PDCCH search space design so as to better match the requirements of the energy saving technology and novel services, and reduce delay and terminal energy consumption is a technical problem to be solved urgently at present.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The disclosure provides a search space group switching method, a device, an electronic device and a storage medium, which at least overcome the technical problems that the search space configuration scheme provided in the related technology is difficult to meet the energy-saving technology and the novel business requirement to a certain extent.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure, there is provided a search space group switching method, the method including: the method comprises the steps that a terminal receives a signaling carrying search space group switching configuration information sent by a base station, wherein the search space group switching configuration information is used for realizing switching of a search space group; and the terminal executes the switching of the search space group according to the search space group switching configuration information.

In some embodiments, the signaling is at least one of: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

In some embodiments, configuration of all or part or a single information in the search space group switch configuration information is accomplished using any one of the following signaling: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

In some embodiments, the search space group switch configuration information includes at least one of: whether to open a search space group switch, a search space group list, and an association of a DRX configuration with a search space group.

In some embodiments, the base station implicitly or explicitly indicates the switching of the search space group through the search space group switching configuration information.

In some embodiments, the association relationship between the DRX configuration and the search space group is configured by at least one of the following ways: signaling indication, standard definition, network predefining.

In some embodiments, the terminal performs switching of the search space group according to the search space group switching configuration information, including at least one of: explicitly indicating the switching of the search space group according to the search space group switching configuration information; executing switching of the search space group when a timer contained in the search space group switching configuration information is started and/or overtime and/or reset; and executing switching of the search space group according to DCP indication information contained in the search space group switching configuration information.

In some embodiments, the terminal performs switching of the search space group according to the search space group switching configuration information, including at least one of: switching from one search space group to one or more search space groups; switching from a plurality of search space groups to a search space group; switching from the plurality of search space groups to the plurality of search space groups.

According to another aspect of the present disclosure, there is also provided a search space group switching method, including: and the base station sends a signaling carrying the search space group switching configuration information to the terminal so that the terminal executes the switching of the search space group according to the search space group switching configuration information, wherein the search space group switching configuration information is used for realizing the switching of the search space group.

According to another aspect of the present disclosure, there is also provided a terminal including: the system comprises a search space group switching configuration information receiving module, a search space group switching configuration information processing module and a search space group switching configuration information processing module, wherein the search space group switching configuration information receiving module is used for receiving signaling carrying search space group switching configuration information, and the search space group switching configuration information is used for realizing switching of a search space group; and the search space group switching module is used for executing the switching of the search space group according to the search space group switching configuration information.

According to another aspect of the present disclosure, there is also provided a base station including: and the search space group switching configuration information issuing module is used for sending a signaling carrying the search space group switching configuration information to the terminal so that the terminal can execute the switching of the search space group according to the search space group switching configuration information, wherein the search space group switching configuration information is used for realizing the switching of the search space group.

According to another aspect of the present disclosure, there is also provided an electronic device including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the search space group switching method of any one of the above via execution of the executable instructions.

According to another aspect of the present disclosure, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the search space group switching method of any one of the above.

According to the search space group switching method, the device, the electronic equipment and the storage medium, the base station sends the signaling carrying the search space group switching configuration information to the terminal, so that the terminal executes the switching of the search space group according to the search space group switching configuration information contained in the received signaling. The search space group switching configuration information comprises whether to open the search space group switching, a search space group list and the association relation between the DRX configuration and the search space group, so that the terminal can realize the switching of the search space group according to the DRX configuration, and the energy saving and novel service requirements are met.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

FIG. 1 illustrates a schematic diagram of a communication system architecture in an embodiment of the present disclosure;

fig. 2 shows a flowchart of a search space group switching method applied to a terminal in an embodiment of the present disclosure;

fig. 3 illustrates a DRX schematic diagram in an embodiment of the present disclosure;

fig. 4 illustrates a schematic diagram of DRX adaptation based on DCP monitoring in an embodiment of the present disclosure;

fig. 5 shows a flowchart of a search space group switching method applied to a base station in an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of internal components of a terminal according to an embodiment of the disclosure;

FIG. 7 is a schematic diagram of an internal component module of a base station according to an embodiment of the disclosure;

Fig. 8 shows a block diagram of an electronic device in an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

For ease of understanding, the following first explains the several terms involved in this disclosure as follows:

DRX: english is called Discontinuous Reception, and is translated into discontinuous reception;

PDCCH: english is called Physical Downlink Control Channel, and is translated into a physical downlink control channel;

XR: english is called Extended Reality, is translated into augmented Reality, contains AR, VR and MR, and combines various technical means by utilizing hardware equipment to fuse virtual contents and real scenes.

AR: english is called Augmented Reality and is translated into 'augmented reality', which is a technology for skillfully fusing virtual information with the real world, and a plurality of technical means such as multimedia, three-dimensional modeling, real-time tracking and registering, intelligent interaction, sensing and the like are widely applied, and after virtual information such as characters, images, three-dimensional models, music, videos and the like generated by a computer are simulated, the virtual information is applied to the real world, and the two kinds of information are mutually supplemented, so that 'enhancement' of the real world is realized.

VR: english is called Virtual Reality, which is a technology combining Virtual Reality and Reality, and a simulation environment is generated by a computer, so that a user is immersed in the environment;

MR: english is called Mixed Reality, translated into Mixed Reality, and virtual scene information is presented in a real scene, and an interactive feedback information loop is built among the real world, the virtual world and a user so as to enhance the sense of Reality of user experience;

DCI: the english is called Downlink Control Information, and is translated into downlink control information including uplink and downlink resource allocation, HARQ information, power control, and the like.

Embodiments of the present disclosure are described in detail below with reference to the attached drawings.

Fig. 1 is a schematic diagram of a communication system architecture according to an embodiment of the disclosure, where, as shown in fig. 1, the communication system architecture includes a network side device 101 and a terminal 102; the network side device 101 sends a signaling carrying the search space group switching configuration information to the terminal 102, and after receiving the signaling carrying the search space group switching configuration information, the terminal 102 performs switching of the search space group according to the search space group switching configuration information.

Optionally, the terminal 102 in the embodiment of the present disclosure may also be referred to as a UE (User Equipment), and in a specific implementation, the terminal 102 may be a terminal Device such as a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (webable Device), or a vehicle-mounted Device, which is not limited to a specific type of the terminal in the embodiment of the present invention.

Alternatively, the network-side device 101 in the embodiment of the present disclosure may be a base station, a relay, or an access point, or the like. The base station may be a 5G or later version base station (e.g., 5G NR NB), or a base station in other communication systems (e.g., eNB (Evolutional Node B, evolved base station)), which should be noted that the specific type of the network side device is not limited in the embodiments of the present disclosure.

Those skilled in the art will appreciate that the number of terminals and network side devices in fig. 1 is merely illustrative, and any number of terminals and network side devices may be provided as desired. The embodiments of the present disclosure are not limited in this regard.

First, under the system architecture shown in fig. 1, a search space group switching method is provided in the embodiments of the present disclosure, which can be applied to, but not limited to, the terminal shown in fig. 1, and in principle, the method can be executed by any electronic device having computing processing capability.

Fig. 2 shows a flowchart of a search space group switching method applied to a terminal in an embodiment of the disclosure, as shown in fig. 2, including the following steps:

s202, the terminal receives signaling carrying search space group switching configuration information sent by the base station, wherein the search space group switching configuration information is used for realizing switching of the search space group.

In some embodiments, the search space group switching configuration information includes at least one of: whether to open a search space group switch, a search space group list, and an association of a DRX configuration with a search space group.

In the embodiment of the disclosure, whether to open the search space group switching is put into the search space group switching configuration information, and when the DRX configuration is configured for the UE but the configuration of SSSG switching related cells is not performed, discontinuous reception of the terminal is considered to be performed according to the original DRX configuration, and the search space group switching is not performed. The method has no additional signaling notification, reduces signaling load, and is an implicit indication method.

When a DRX configuration is configured for the UE and the configuration of SSSG switching related cells is configured, if a specific cell in the related configuration explicitly indicates the time window/timer length of SSSG switching to be in a closed state and/or SSSG switching to be in the closed state, the UE performs discontinuous reception according to the original DRX configuration within the effective time range of the time window/timer/configuration according to the configuration, and does not perform SSSG switching. The method can dynamically and flexibly activate/deactivate SSSG switching flow through a specific cell display indication switch, for example: the notification of the specific cell can be performed through DCI or MAC CE, so that SSSG switching can be flexibly adjusted according to the dynamic change of the current service requirement of the UE, and a large number of SSSG switching RRC high-level signaling configurations are not needed. That is, the search space group switch may be configured by signaling and/or implicit pointing methods.

It should be noted that, the search space list is put into the search space group switching configuration information, so that the terminal switches between the search space groups in the range defined by the search space group list. The base station configures the available search space groups in the search space group list for the terminal according to the terminal type (e.g., XR terminal equipment), terminal service requirements (e.g., video, web browsing, uplink live transmission), and terminal processing capability (e.g., minimum switching time between search space groups). For example: when the terminal is XR terminal type equipment, a search space group list is configured for the terminal, linkage between search space group switching and DRX configuration is performed, XR service is better adapted, service QoS is guaranteed, and energy consumption is reduced. When the terminal is of a common terminal type and the service requirement is common downlink service such as web browsing, the base station does not configure a search space group list for the terminal or the search space group list is empty or only contains 1 search space group in the search space group list, the base station implicitly indicates the terminal not to switch the search space group, and the search space group and DRX have no association relation configuration. When the terminal processing capability is strong, a plurality of search space groups which are more matched with the service requirements can be configured with the terminal service for better energy saving, and the terminal with the strong terminal processing capability can quickly realize switching among the search space groups. When the processing capacity of the terminal is weak, the search space group configuration is not performed, and the terminal resources are concentrated for processing the terminal core sending and receiving processes. Ext> therebyext> betterext> adaptingext> toext> variousext> terminalext> typesext> andext> variousext> serviceext> demandsext> ofext> 5ext> Gext> -ext> Aext> andext> 6ext> Gext> inext> theext> futureext>.ext>

The association relationship between the DRX configuration and the search space group in the embodiments of the present disclosure may include, but is not limited to, one form of:

different DRX configurations adapt to different energy-saving/service modes of the UE, a mapping relation between a plurality of groups (for example, two groups) of DRX configuration parameters and a plurality of groups (for example, 2) of search space groups is configured through RRC signaling, the search space groups associated with the DRX configuration parameters with higher energy-saving requirements are distributed sparsely on time-frequency resources, so that the number of monitored PDCCHs is reduced, and the energy consumption of the terminal in the DRX active time is reduced. The network automatically switches the search space to the search space group configuration associated with DRX when configuring the switch between DRX configurations for the terminal (e.g., RRC/MAC CE semi-static or DCI dynamic switching DRX configurations). The method can realize linkage of the search space and the DRX configuration, is beneficial to self-operation, maintenance and self-optimization of the network to the terminal configuration, is beneficial to introduction of artificial intelligence and machine learning technology, and reduces repeated signaling overhead.

A single multi-cycle DRX configuration (e.g., a three-cycle DRX configuration) and multiple search space groups (e.g., 2 search space groups) are configured through RRC signaling, the multi-cycle DRX may include multiple awake periods/sleep periods/active times/timers configurations, and the mapping between the multiple DRX awake periods/sleep periods/active times/timers and the search space groups may be in a one-to-many, one-to-one, one-to-many configuration. Because the wake-up period/sleep period/active time/timer of DRX has different demands on the search space group, for example, the wake-up period is mainly used for detecting services, the sleep period is mainly used for detecting low-power signals such as WUS, and the like, and the data receiving such as retransmission and the like is required in the active time, different timers can realize different DRX functions, and potentially have different demands on PDCCH detection, in order to realize self-operation and self-optimization of network to terminal configuration, the mapping of different DRX periods/timers and the search space is carried out through a signaling/network predefined/standard definition form, so that the signaling energy consumption can be greatly saved, the introduction of artificial intelligence and machine learning is facilitated, and the demands of different services of different terminals are ensured.

In addition, it should be noted that DRX (discontinuous reception) refers to that the terminal periodically stops monitoring the control channel at the base station side for a period of time, so as to achieve the purpose of reducing the power consumption of the terminal. Discontinuous reception is largely divided into two types: discontinuous reception in an idle state and discontinuous reception in a connected state, wherein the discontinuous reception in the idle state is controlled by setting a fixed period, and the terminal monitors only one paging opportunity in each period; discontinuous reception in the connected state is mainly controlled by setting a Timer of parameters such as a DRX Cycle (DRX Cycle), a DRX wake-up phase (On Duration Timer), a DRX Inactivity Timer (Inactivity Timer), a DRX retransmission Timer (Retransmission Timer), and a DRX Activity Time (Activity Time). The DRX sleep phase is defined as a time period excluding a DRX wake-up phase in the DRX cycle or a time period excluding a DRX active time in the DRX cycle.

Fig. 3 illustrates a DRX schematic diagram in an embodiment of the present disclosure, as shown in fig. 3, where a DRX cycle includes a DRX wakeup phase in which a terminal listens to and receives data of a physical downlink control channel PDCCH, and a DRX sleep phase in which the terminal stops listening to data of the physical downlink control channel PDCCH, so as to save power consumption of the terminal. The DRX wake-up stage is a period of time for which the terminal keeps awake after waking up from the DRX sleep state each time; the DRX inactivity time period is a time period which is continued after the terminal successfully demodulates the data of the PDCCH, and if the terminal does not successfully demodulate the data of the PDCCH, the terminal enters a DRX dormancy stage; the DRX retransmission time period is a duration period of receiving retransmission; the DRX Active Time (Active Time) is the total duration that the terminal listens to the PDCCH, and includes: a DRX wake-up phase, a DRX inactivity period, and a DRX retransmission period. Therefore, the DRX mechanism can enable the terminal to wake up and sleep periodically, and can flexibly prolong the time of the terminal monitoring the PDCCH if necessary, thereby reducing the service delay.

Fig. 4 shows a schematic diagram of DRX adaptation based on DCP monitoring in an embodiment of the present disclosure, where, as shown in fig. 4, the DCP monitoring is started by semi-static configuration of PS-offset, starting at a position of PS-offset before DRX on-duration, when it is monitored that the DCP includes Waka Up Signal (WUS), the PDCCH is detected at the next DRX on-duration, otherwise, the PDCCH is not detected at the next DRX on-duration.

In the embodiment of the disclosure, through setting the association relation between the DRX configuration and the search space group, the terminal can realize corresponding search space group switching according to the DRX configuration.

S204, the terminal executes the switching of the search space group according to the search space group switching configuration information.

Note that, the Search Space (Search Space) is defined as: a set of all PDCCH candidates under a certain Aggregation Level. The UE may configure a plurality of Search spaces corresponding to the plurality of ALs, which are called SS set-Search Space set. Each Search Space set has a group index, and SS sets of a group index can be used for one or more serving cells of the terminal at the same time. One or more SSSs with group index are referred to as SSSG for short as search space group.

When the search space group switching configuration information comprises whether to start the search space group switching or not, if the search space group switching configuration received by the terminal indicates that the terminal starts the search space group switching, starting a search space switching function of the terminal, so that the terminal executes the switching of the search space group; if the search space group switching configuration received by the terminal indicates that the terminal closes the search space group switching, closing the search space switching function of the terminal, so that the terminal monitors the physical downlink control channel PDCCH based on the default search space group.

Further, in some embodiments, when the search space group switching configuration information further includes a search space group list, the terminal may perform switching of the search space group according to the search space group list included in the search space group switching configuration information.

Further, in some embodiments, when the association relationship between the DRX configuration and the search space group is also included in the search space group switching configuration information, the terminal may perform switching of the search space group according to the DRX configuration and the search space group list included in the search space group switching configuration information.

In some embodiments, the signaling in S202 that carries the search space group switching configuration information may be, but is not limited to, at least one of the following: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

In implementations, RRC may be used in part of the configuration, MAC CE in part of the configuration, and DCI in the rest of the configuration. The RRC has semi-static configuration effect and high reliability. The reliability and instantaneity of the MAC CE are centered, and the instantaneity of the DCI can be configured dynamically and is strongest. The configuration adopts a mode of combining multiple signaling configurations of RRC/MAC CE/DCI, so that the signaling overhead is saved, and meanwhile, the dynamic and flexible adjustment of the implementation scheme is maximized. For example: the mapping association relation between the DRX wake-up time/active time/sleep time/specific timer and the SSSG is configured by adopting RRC signaling. The activation/deactivation of SSSG switching by MAC CE or DCI is configured with MAC CE or DCI.

In some embodiments, the base station in the embodiments of the present disclosure may implement the configuration of all or part of or a single information in the search space group switching configuration information using any one of the following signaling: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

In some embodiments, the base station in the embodiments of the present disclosure may implicitly or explicitly indicate the switching of the search space group through the search space group switching configuration information.

In some embodiments, the association of the DRX configuration with the set of search spaces is configured by at least one of: signaling indication, standard definition, network predefining.

It should be noted that, in the embodiment of the present disclosure, the association relationship between the DRX configuration and the search space group may use signaling indication, or may use a standard definition form, or use a network predefined form. At the same time, a part of the method can also adopt a standard predefined mode, and the other part adopts signaling indication. Meanwhile, a part of the definition may be predefined by using a standard, a network, or a signaling indication, and when multiple definition forms exist at the same time, the signaling definition covers the network definition or the standard definition, and the network predefines the coverage standard definition. The method has the advantages that the load of the air interface signaling can be reduced as much as possible according to the requirement, most of the relatively fixed configuration modes are used in a longer time range through standard definition or network predefined forms, and meanwhile the flexibility of modifying and adjusting the configuration is reserved, so that the method is better suitable for the development of future networks/services/terminals and is compatible with the forward technology.

In some embodiments, the terminal performs switching of the search space group according to the search space group switching configuration information, including at least one of: explicitly indicating the switching of the search space group according to the search space group switching configuration information; executing switching of the search space group when a timer included in the search space group switching configuration information is started and/or timed out and/or reset; and executing switching of the search space group according to the DCP indication information contained in the search space group switching configuration information.

In one embodiment of the present disclosure, the base station uses existing fields or newly added fields in existing DCI formats or newly defined DCI formats for display indication of search space group switching. For example, using DCI format 1_0/1_1/1_2/2_0 or 2_6 for indication, the DCP technology and SSSG switching can be implemented simultaneously, i.e., a part of fields in the DCI format can indicate the DCP technology and SSSG switching simultaneously.

In one embodiment of the present disclosure, the base station configures a timer of each search space group for the terminal, and the timer may be a timer in reuse DRX/DCP configuration, or a newly defined timer, or a timer setting references a timer configuration in DRX/DCP configuration; when the timer is enabled and/or times out and/or resets, switching is performed among the plurality of search space groups. At the time of switching, switching from one search space group to one or more search space groups may be performed according to a standard definition/network predefined/higher layer signaling configuration, or switching from multiple search space groups to one search space group may be performed.

In one embodiment of the present disclosure, a base station sends DCI information for a terminal, indicating DCP related configuration, where the DCP related configuration includes a skipped PDCCH duration of X, and the terminal implicitly performs switching of a search space group according to the related indication. The relevant indication may be a standard definition/network predefined/the signalling configuration.

In one embodiment of the present disclosure, if standard predefining is adopted, when the base station receives signaling such as MAC CE/DCI related to DRX/DCP or when the related timer in the DRX/DCP configuration satisfies a trigger condition (start or timeout), automatic switching of the search space group is implicitly performed according to the standard definition content.

For example: the search space group associated with the long period timer is used when the drx-ShortCycleTimer times out or Long DRX Command MAC CE is received.

In one embodiment of the present disclosure, if a signaling indication manner is adopted, the search space group is switched according to a display indication carried in the MAC CE/DCI, for example: switching to the indicated set of search spaces according to the display indication in Long DRX Command MAC CE results in a better match with the DRX long cycle sleep period, facilitates WUS reception, and is more energy efficient. When DRX on Duration DCI Offset adjustment signaling (DRX Star-Offset) is received, the Offset of the search space configuration is adjusted according to the DCI indication so that the search space matches the DRX window Offset due to traffic jitter. And when the DRX configuration dynamic change signaling is received, automatically switching the search space group according to the signaling instruction or network predefining. When the DCP does not receive the WUS, the DCP timer is started to not monitor the PDCCH, and when the timer is overtime, the search space group is automatically switched or when the DCP timer is started, so that the search space group is more matched with the signal detected in the DCP, the energy-saving efficiency is improved, and the data receiving of a user is ensured.

As can be seen from the above, in the embodiment of the present disclosure, the association relationship between the DRX configuration and the search space group is put into the search space group switching configuration information, and the base station performs SSSG switching of the search space group and/or the association relationship between the DRX cycle and the search space group according to the DRX configuration signaling by signaling (e.g., RRC/MAC CE/DCI) configuration, when the terminal receives signaling notification such as MAC CE/DCI related to DRX or when the related timer in the DRX configuration satisfies the triggering condition (starting or timeout), performs automatic switching of the implicit search space group according to the configuration, or performs switching of the search space group according to the display indication carried in the related MAC CE/DCI, so as to solve the problems that multiple DCI dynamic indication is required for PDCCH search space group switching and DRX/DCP energy saving technology incompatibility, multiple DCI design is increased, DCI false detection is performed, and the like, thereby improving energy saving efficiency and reducing signaling overhead.

Based on the same inventive concept, under the system architecture shown in fig. 1, the embodiment of the disclosure further provides a search space group switching method, which can be applied to, but not limited to, a network side device (e.g., a base station) shown in fig. 1, and in principle, the method can be executed by any electronic device with computing processing capability.

Fig. 5 shows a flowchart of a search space group switching method applied to a base station in an embodiment of the disclosure, where, as shown in fig. 5, the method includes:

s502, the base station sends a signaling carrying search space group switching configuration information to the terminal, so that the terminal executes the switching of the search space group according to the search space group switching configuration information, wherein the search space group switching configuration information is used for realizing the switching of the search space group.

In some embodiments, the base station may send search space group switch configuration information to the terminal by at least one of the following signaling: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

In some embodiments, the base station may implement configuration of all or part or a single information in the search space group switch configuration information using any one of the following signaling: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

In some embodiments, the base station may implicitly or explicitly indicate the switching of the search space group through the search space group switching configuration information.

In some embodiments, the search space group switching configuration information issued by the base station may cause the terminal to perform switching of at least one of the following search space groups: explicitly indicating the switching of the search space group according to the search space group switching configuration information; executing switching of the search space group when a timer included in the search space group switching configuration information is started and/or timed out and/or reset; and executing switching of the search space group according to the DCP indication information contained in the search space group switching configuration information.

In some embodiments, the search space group switching configuration information issued by the base station may cause the terminal to perform switching of the following search space groups: switching from one search space group to one or more search space groups; switching from a plurality of search space groups to a search space group; switching from the plurality of search space groups to the plurality of search space groups.

The search space group switching method provided in the embodiment of the present disclosure can implement a linkage mechanism of DRX and PDCCH search space groups, and specifically includes:

1) The base station transmits the information by signaling (e.g.: RRC/MAC CE/DCI) configuration whether to open the search space group SSSG switching and/or the correspondence between the DRX cycle and the search space group according to the DRX configuration signaling.

For example: different DRX configurations adapt to different energy-saving/service modes of the UE, and the mapping relation between two groups of different DRX configuration parameters and 2 search space groups is configured through RRC signaling.

For example: the mapping relation between the three-period DRX configuration and 2 search space groups and the three-period DRX awake period/sleep period configuration and the search space groups can be many-to-one through RRC signaling configuration

2) When the base station receives signaling notification such as MAC CE/DCI related to DRX or when related timer in DRX configuration meets triggering condition (starting or overtime), automatic switching of the implicit search space group is carried out according to the configuration, or switching of the search space group is carried out according to display instruction carried in related MAC CE/DCI.

For example: when the DRX-short cycle timer times out or Long DRX Command MAC CE is received, the search space group associated with the long period timer is used, or the search space group is switched to according to the display indication in Long DRX Command MAC CE, so that the DRX long period sleep period is matched with the DRX long period sleep period, WUS is convenient to receive, and the method is more energy-saving

For example: when DRX onDuration DCI offset adjustment signaling is received, the offset of the search space configuration is adjusted according to the DCI indication so as to match the DRX window offset due to traffic jitter.

For example: and when receiving the DRX configuration dynamic change signaling, automatically switching the search space group.

For example: when the DCP does not receive the WUS, starting the DCP timer to not monitor the PDCCH, and when the timer is overtime, automatically switching the search space group.

Therefore, the search space group switching method provided by the embodiment of the disclosure is suitable for the configuration method of the PDCCH search spaces of the 5G-Advanced and 6G networks, and the DRX and DCP energy-saving configuration is adapted by configuring the search space switching linkage mechanism, so that the characteristics of novel business multiflow, jitter and the like are better adapted, the energy-saving efficiency is improved, and the transmission delay is reduced.

Based on the same inventive concept, a terminal is also provided in the embodiments of the present disclosure, as described in the following embodiments. Since the principle of the solution of the problem of the terminal embodiment is similar to that of the method embodiment, the implementation of the terminal embodiment can refer to the implementation of the method embodiment, and the repetition is omitted.

Fig. 6 is a schematic diagram illustrating internal components of a terminal according to an embodiment of the present disclosure, as shown in fig. 6, the terminal includes: a search space group switching configuration information receiving module 61 and a search space group switching module 62.

The search space group switching configuration information receiving module 61 is configured to receive signaling carrying search space group switching configuration information, where the search space group switching configuration information is used to implement switching of a search space group; the search space group switching module 62 is configured to perform switching of the search space group according to the search space group switching configuration information.

In some embodiments, the search space group switching configuration information received by the search space group switching configuration information receiving module 61 includes at least one of the following: whether to open a search space group switch, a search space group list, and an association of a DRX configuration with a search space group.

In some embodiments, the signaling carrying the search space group switching configuration information received by the search space group switching configuration information receiving module 61 may be, but is not limited to, at least one of the following: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

In some embodiments, the base station uses any one of the following signaling to implement configuration of all or part of or a single information in the search space group switch configuration information: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

In some embodiments, the search space group switching module 62 described above may also be used to: explicitly indicating the switching of the search space group according to the search space group switching configuration information; executing switching of the search space group when a timer included in the search space group switching configuration information is started and/or timed out and/or reset; and executing switching of the search space group according to the DCP indication information contained in the search space group switching configuration information.

In some embodiments, the search space group switching module 62 described above may also be used to: switching from one search space group to one or more search space groups; switching from a plurality of search space groups to a search space group; switching from the plurality of search space groups to the plurality of search space groups.

Based on the same inventive concept, a base station is also provided in the embodiments of the present disclosure, as described in the following embodiments. Since the principle of the solution of the problem of the base station embodiment is similar to that of the method embodiment, the implementation of the base station embodiment can be referred to the implementation of the method embodiment, and the repetition is omitted.

Fig. 7 is a schematic diagram of internal components of a base station according to an embodiment of the disclosure, as shown in fig. 7, where the base station includes: and a search space group switching configuration information issuing module 71, configured to send signaling carrying search space group switching configuration information to the terminal, so that the terminal performs switching of the search space group according to the search space group switching configuration information, where the search space group switching configuration information is used to implement switching of the search space group.

In some embodiments, the search space group switching configuration information issued by the search space group switching configuration information issuing module 71 includes at least one of the following: whether to open a search space group switch, a search space group list, and an association of a DRX configuration with a search space group.

In some embodiments, the search space group switching configuration information issuing module 71 is configured to send the search space group switching configuration information to the terminal through at least one of the following signaling: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

In some embodiments, the above-mentioned search space group switching configuration information issuing module 71 is further configured to implement configuration of all or part or a single information in the search space group switching configuration information by using any one of the following signaling: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

In some embodiments, the above-mentioned search space group switching configuration information issuing module 71 is further configured to implicitly or explicitly indicate the switching of the search space group through the search space group switching configuration information.

In some embodiments, the above-mentioned search space group switching configuration information issued by the search space group switching configuration information issuing module 71 may enable the terminal to perform switching of at least one of the following search space groups: explicitly indicating the switching of the search space group according to the search space group switching configuration information; executing switching of the search space group when a timer included in the search space group switching configuration information is started and/or timed out and/or reset; and executing switching of the search space group according to the DCP indication information contained in the search space group switching configuration information.

In some embodiments, the above-mentioned search space group switching configuration information issued by the search space group switching configuration information issuing module 71 may enable the terminal to perform switching of the following search space groups: switching from one search space group to one or more search space groups; switching from a plurality of search space groups to a search space group; switching from the plurality of search space groups to the plurality of search space groups.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 800 according to such an embodiment of the present disclosure is described below with reference to fig. 8. The electronic device 800 shown in fig. 8 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.

As shown in fig. 8, the electronic device 800 is embodied in the form of a general purpose computing device. Components of electronic device 800 may include, but are not limited to: the at least one processing unit 810, the at least one memory unit 820, and a bus 830 connecting the various system components, including the memory unit 820 and the processing unit 810.

Wherein the storage unit stores program code that is executable by the processing unit 810 such that the processing unit 810 performs steps according to various exemplary embodiments of the present disclosure described in the above section of the present specification.

When the electronic device 800 provided in the embodiments of the present disclosure is a terminal, the processing unit 810 may perform the following steps of the method embodiments: the method comprises the steps that a terminal receives a signaling carrying search space group switching configuration information sent by a base station, wherein the search space group switching configuration information is used for realizing switching of a search space group; and the terminal executes the switching of the search space group according to the search space group switching configuration information.

When the electronic device 800 provided in the embodiments of the present disclosure is a terminal, the processing unit 810 may perform the following steps of the method embodiments: and the base station sends a signaling carrying the search space group switching configuration information to the terminal so that the terminal executes the switching of the search space group according to the search space group switching configuration information, wherein the search space group switching configuration information is used for realizing the switching of the search space group.

The storage unit 820 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 8201 and/or cache memory 8202, and may further include Read Only Memory (ROM) 8203.

Storage unit 820 may also include a program/utility 8204 having a set (at least one) of program modules 8205, such program modules 8205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

Bus 830 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 800 may also communicate with one or more external devices 840 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 800, and/or any device (e.g., router, modem, etc.) that enables the electronic device 800 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 850. Also, electronic device 800 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 860. As shown, network adapter 860 communicates with other modules of electronic device 800 over bus 830. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 800, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium, which may be a readable signal medium or a readable storage medium, is also provided. On which a program product is stored which enables the implementation of the method described above of the present disclosure. In some possible implementations, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the disclosure as described in the "exemplary methods" section of this specification, when the program product is run on the terminal device.

More specific examples of the computer readable storage medium in the present disclosure may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

In this disclosure, a computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Alternatively, the program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

In particular implementations, the program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order or that all illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the description of the above embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A search space group switching method, comprising:

the method comprises the steps that a terminal receives a signaling carrying search space group switching configuration information sent by a base station, wherein the search space group switching configuration information is used for realizing switching of a search space group;

and the terminal executes the switching of the search space group according to the search space group switching configuration information.

2. The method of claim 1, wherein the signaling is at least one of: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

3. The method for switching a search space group according to claim 1, wherein the configuration of all or part or a single information in the configuration information for switching a search space group is implemented using any one of the following signaling: radio resource control, RRC, signaling, medium access control, control element, MAC CE, signaling, downlink control information, DCI, signaling.

4. The method according to claim 1, wherein the base station implicitly or explicitly indicates the switching of the search space group through the search space group switching configuration information.

5. The search space group switching method of claim 1, wherein the search space group switching configuration information includes at least one of: whether to open a search space group switch, a search space group list, and an association of a DRX configuration with a search space group.

6. The method for switching a search space group according to claim 5, wherein the association relationship between the DRX configuration and the search space group is configured by at least one of: signaling indication, standard definition, network predefining.

7. The method of claim 1, wherein the terminal performs the switching of the search space group according to the search space group switching configuration information, comprising at least one of:

explicitly indicating the switching of the search space group according to the search space group switching configuration information;

executing switching of the search space group when a timer contained in the search space group switching configuration information is started and/or overtime and/or reset;

and executing switching of the search space group according to DCP indication information contained in the search space group switching configuration information.

8. The method of claim 1, wherein the terminal performs the switching of the search space group according to the search space group switching configuration information, comprising at least one of:

Switching from one search space group to one or more search space groups;

switching from a plurality of search space groups to a search space group;

switching from the plurality of search space groups to the plurality of search space groups.

9. A search space group switching method, comprising:

and the base station sends a signaling carrying the search space group switching configuration information to the terminal so that the terminal executes the switching of the search space group according to the search space group switching configuration information, wherein the search space group switching configuration information is used for realizing the switching of the search space group.

10. A terminal, comprising:

the system comprises a search space group switching configuration information receiving module, a search space group switching configuration information processing module and a search space group switching configuration information processing module, wherein the search space group switching configuration information receiving module is used for receiving signaling carrying search space group switching configuration information, and the search space group switching configuration information is used for realizing switching of a search space group;

and the search space group switching module is used for executing the switching of the search space group according to the search space group switching configuration information.

11. A base station, comprising:

and the search space group switching configuration information issuing module is used for sending a signaling carrying the search space group switching configuration information to the terminal so that the terminal can execute the switching of the search space group according to the search space group switching configuration information, wherein the search space group switching configuration information is used for realizing the switching of the search space group.

12. An electronic device, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to perform the search space group switching method of any one of claims 1 to 8 via execution of the executable instructions.

13. A computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the search space group switching method of any of claims 1 to 8.