CN114553378B

CN114553378B - Indication configuration information, detection method, device and storage medium

Info

Publication number: CN114553378B
Application number: CN202011336164.3A
Authority: CN
Inventors: 杨拓; 王飞; 李岩
Original assignee: China Mobile Communications Group Co Ltd; Research Institute of China Mobile Communication Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; Research Institute of China Mobile Communication Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2024-11-08
Anticipated expiration: 2040-11-25
Also published as: CN114553378A

Abstract

The invention discloses an indication configuration information, a detection method, equipment and a storage medium, comprising the following steps: the network side configures the association relation between the TCI state index of CORESET and the configuration information of the search space to the terminal through a high-level signaling; the TCI state index of CORESET is indicated to the terminal through higher layer signaling. The terminal receives a TCI state index of CORESET indicated by a high-layer signaling at the network side; and detecting the PDCCH according to the association relation between the TCI state index configured by the pre-configuration or the high-layer signaling and the configuration information of the search space. By adopting the invention, the configuration of the SS can be switched at the same time of switching the TCI of CORESET, the network side realizes TDM wave beam scanning, and the terminal side realizes rapid wave beam switching, so that data interruption is not caused.

Description

Indication configuration information, detection method, device and storage medium

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a method and apparatus for indicating configuration information, and a storage medium.

Background

The TCI (transmission configuration indicator, transmission configuration indication) state in NR (New Radio) refers to a QCL (quasi-common address, quasi-colocation) relationship between one or two reference signals. The terminal receives PDCCH (physical downlink control channel ), and the higher layer signaling configures one or more TCI states for CORESET (control resource set ) of the terminal receiving PDCCH, but one CORESET can only activate one TCI state configuration information, i.e. one beam information, at each moment.

If only one TCI state is configured for higher layer signaling, the terminal assumes that the DMRS (demodulation reference signal ) receiving the PDCCH is quasi co-located with the reference signal in the configured TCI state. If the higher layer signaling configures multiple TCI states, the network side activates one of them through a MAC CE (media access Control Element; MAC: media access Control, MEDIA ACCESS Control; CE: control Element). If the terminal does not receive the MAC CE activation command, the terminal assumes that the DMRS receiving the PDCCH is quasi co-located with the SS (synchronization signal )/PBCH block (PBCH block; PBCH: physical broadcast channel, physical broadcast channel) used for initial access.

Each search space in the NR will be configured with its associated CORESET, one search space can be associated with only one CORESET, and the information of the configuration of the search space is configured through high-level signaling. If the search space configuration information of the terminal needs to be reconfigured, it can only pass an RRC reconfiguration (RRC re-configuration) procedure.

The disadvantage of the prior art is that after introducing the multicast/broadcast service in the NR, a fast indication of the search space reconfiguration cannot be made, which may cause that part of the terminals cannot receive the service on the new beam fast, resulting in service interruption.

Disclosure of Invention

The invention provides indication configuration information, a detection method, equipment and a storage medium, which are used for solving the problem that a terminal cannot receive a service on a new wave beam quickly because a base station cannot perform quick indication of search space reconfiguration after multicast/broadcast service is introduced into NR.

The invention provides the following technical scheme:

a method of indicating TCI status and search space configuration information, comprising:

The network side configures the association relation between the TCI state index of CORESET and the configuration information of the search space to the terminal through a high-level signaling;

The network side indicates CORESET the TCI state index to the terminal through higher layer signaling.

In the practice of this invention,

The association relationship between the TCI state index of CORESET and the configuration information of the search space is configured to the terminal by the network side through the high-level signaling, which comprises:

the network side configures the association relation between the at least one TCI state index and the at least one search space index of CORESET to the terminal through high-layer signaling.

In implementation, the at least one TCI state index and the at least one search space index of CORESET have a one-to-one association.

In an implementation, PDCCH detection positions of the plurality of search spaces do not overlap each other.

In an implementation, the association relationship between the TCI state index of CORESET and the configuration information of the search space is configured to the terminal by the network side through a high-layer signaling, including:

The network side configures the association relation between the at least one TCI state index of CORESET and the at least one configuration parameter value of a search space to the terminal through a high-layer signaling.

In practice, the at least one TCI state index of CORESET and the at least one configuration parameter value of the search space have a one-to-one association.

In implementation, PDCCH detection positions determined by the plurality of configuration parameter values in the search space do not overlap with each other.

In implementation, the TCI state index of CORESET is indicated to the terminal by the network side through higher layer signaling, and is indicated by the MAC CE.

A method of detecting PDCCH, comprising:

the terminal receives a TCI state index of CORESET indicated by a high-layer signaling at the network side;

and the terminal detects the PDCCH according to the association relation between the TCI state index configured by the pre-configuration or high-layer signaling and the configuration information of the search space.

In implementation, the terminal detects the PDCCH according to the association relationship between the TCI state index configured by the pre-configuration or the higher layer signaling and the configuration information of the search space, including:

the terminal determines the association relation between at least one TCI state index and at least one search space index of CORESET according to pre-configuration or high-level signaling;

the terminal detects the PDCCH in a search space of a search space index associated with a TCI state index of CORESET indicated by the higher layer signaling.

the terminal determines the association relation between at least one TCI state index of CORESET and at least one configuration parameter value of a search space according to pre-configuration or high-level signaling;

The terminal detects the PDCCH according to the configuration parameter value of the search space associated with the TCI state index of CORESET indicated by the higher layer signaling.

In implementation, the TCI state index of CORESET indicated by the terminal receiving the higher layer signaling on the network side is indicated by the network side through MAC CE.

A base station, comprising:

A processor for reading the program in the memory, performing the following process:

Configuring the association relation between the TCI state index of CORESET and the configuration information of the search space to the terminal through a high-level signaling;

the TCI state index of CORESET is indicated to the terminal through high-layer signaling;

And a transceiver for receiving and transmitting data under the control of the processor.

In implementation, the association relationship between the TCI state index of CORESET and the configuration information of the search space is configured to the terminal through the higher layer signaling, including:

In implementation, the TCI state index, which indicates CORESET to the terminal through higher layer signaling, is indicated by the MAC CE.

A base station, comprising:

The network side configuration module is used for configuring the association relation between the TCI state index of CORESET and the configuration information of the search space to the terminal through a high-layer signaling;

And the network side indicating module is used for indicating the TCI state index of CORESET to the terminal through high-layer signaling.

In an implementation, the network side configuration module is further configured to, when configuring, to the terminal through the higher layer signaling, an association relationship between the TCI state index of CORESET and the configuration information of the search space, include:

In an implementation, the network side indication module is further configured to indicate, when the TCI state index of CORESET is indicated to the terminal through higher layer signaling, the TCI state index through MAC CE.

A terminal, comprising:

receiving a TCI state index of CORESET indicated by a network side through a high-layer signaling;

detecting PDCCH according to the incidence relation between the TCI state index configured by pre-configuration or high-layer signaling and the configuration information of the search space;

In implementation, detecting the PDCCH according to the association relationship between the TCI state index configured by the pre-configuration or higher layer signaling and the configuration information of the search space includes:

Determining the association relation between at least one TCI state index and at least one search space index of CORESET according to pre-configuration or high-level signaling;

The PDCCH is detected within a search space of a search space index associated with a TCI state index of CORESET indicated by higher layer signaling.

Determining an association of at least one TCI state index of said CORESET with at least one configuration parameter value of a search space according to pre-configuration or higher layer signaling;

the PDCCH is detected from configuration parameter values of a search space associated with a TCI state index of CORESET indicated by higher layer signaling.

In implementation, the TCI state index of CORESET, which receives the higher layer signaling indication at the network side, is indicated by the MAC CE at the network side.

A terminal, comprising:

The terminal receiving module is used for receiving a TCI state index of CORESET indicated by a high-level signaling from the network side and receiving a switching TCI indicated by the TCI index from the network side;

and the terminal detection module is used for detecting the PDCCH according to the association relation between the TCI state index configured by the pre-configuration or high-layer signaling and the configuration information of the search space.

In an implementation, the terminal detection module is further configured to, when detecting the PDCCH according to the association relationship between the TCI state index configured by the pre-configuration or higher layer signaling and the configuration information of the search space, include:

In implementation, the terminal receiving module is further configured to receive a TCI state index indicated by CORESET by the MAC CE at the network side.

A computer-readable storage medium storing a computer program for executing the above-described method of indicating a PDCCH detection search space and/or PDCCH detection method.

The invention has the following beneficial effects:

In the technical solution provided in the embodiment of the present invention, the network side may configure CORESET the association relationships between different TCI state indexes and different indexes of a search space or different configuration parameters of a search space, and the terminal detects CORESET only with the index of the search space having the association relationship with a certain TCI state index or the configuration of the search space configuration parameter having the association relationship. Based on the scheme, the network side can simultaneously activate the new TCI state of CORESET by using the MAC CE and activate the configuration information of the new search space, the terminal side realizes rapid beam switching and updating of the configuration information of the search space, and the base station can rapidly transmit PDCCHs in different beam directions for different terminals on different time domain resources, so that data interruption is not caused.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a schematic flow chart of an implementation of a search space indication method at a network side in an embodiment of the present invention;

Fig. 2 is a schematic flow chart of implementation of a method for determining a search space on a terminal side in an embodiment of the present invention;

fig. 3 is a schematic diagram of a base station structure according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of a terminal structure according to an embodiment of the present invention.

Detailed Description

The inventors noted during the course of the invention that:

Multicast/broadcast traffic is introduced in the NR, and the network side uses a common RNTI (radio network temporary identity, radio Network Temporary Identifier) such as G-RNTI (Group-Radio Network Tempory Identity) for CRC (cyclic redundancy check ) scrambled PDCCH to schedule PDSCH (physical downlink shared channel ) carrying the corresponding multicast/broadcast traffic. That is, a plurality of terminals detect the same PDCCH and receive the same PDSCH.

In the conventional unicast service, the UE (User Equipment) in a connected state may always perform beam reporting, so the base station may know the optimal beam direction of the UE, and if the strongest beam direction of the UE changes, the base station may activate a certain TCI transition state of CORESET through the MAC CE to implement beam switching of the PDCCH.

For multicast/broadcast services, since the services are for multiple UEs, the geographic locations of each UE are different, and the terminal needs to be moved continuously, in order to achieve coverage of multiple UEs, one way is that the network side adopts a complete beam scanning manner, for example, adopts the same beam scanning manner as SSB (Synchronization signal/physical broadcast channel signal block (or Synchronization signal block), synchronization SIGNAL AND PBCH block) to transmit PDCCH and PDSCH on all beams, but this manner causes significant expenditure on PDCCH and PDSCH on the network side.

Another way is to use the beam switching method of PDCCH, the base station only sends PDCCH and PDSCH in one beam direction, if the strongest beam direction of the terminal changes, the base station can activate the new CORESET TCI state through MAC CE. However, in the multicast/broadcast scenario, there may be a case where only the optimal beam of a part of UEs changes, and still a case where a part of UEs receives the multicast/broadcast service under the original beam. For example, all UEs originally receive multicast/broadcast traffic in beam direction 1, and the search space configuration information of all UEs is the same (i.e. PDCCH is detected on the same time domain resource location). But some UEs (UE group 2) move to a new location, need to transmit PDCCH in beam direction 2, and the remaining UEs (UE group 1) also receive in beam direction 1. Considering the current analog-digital mixed antenna architecture, if the base station wants to send the beam 1 and the beam 2, the base station can only use the beam sending mode of TDM (time division multiplexing ), that is, the base station transmits different beams on different time domain resource positions, which requires that the UE group 1 and the UE group 2 search space detection positions (PDCCH detection positions) also need to be staggered in TDM and cannot be overlapped.

Although the base station can activate the beam direction of the new PDCCH through the MAC CE, the base station can only reconfigure the search space by means of RRC (radio resource control ) reconfiguration at present, the effective time of the signaling for RRC reconfiguration is far longer than that of the MAC CE signaling, and in the RRC reconfiguration process, the terminal cannot continue to receive the multicast/broadcast service, and the terminal may continue to move, resulting in service interruption of the terminal. That is, even if the base station can perform the rapid activation indication of the CORESET TCI states through the MAC CE, the rapid indication of the search space reconfiguration cannot be achieved, and a long time difference exists between the two signaling, so that the two signaling cannot be effective at the same time.

Based on this, the embodiment of the invention provides a configuration scheme of fast beam switching and search space configuration information, so that a terminal can fast receive a PDCCH on a new beam.

The following describes specific embodiments of the present invention with reference to the drawings.

In the description process, the implementation of the terminal and the base station will be described separately, and then an example of the implementation of the cooperation of the terminal and the base station will be given to better understand the implementation of the scheme given in the embodiment of the present invention. Such a description does not mean that the two must be implemented cooperatively or separately, and in fact, when the UE and the base station are implemented separately, they solve the problems of the UE side and the base station side, respectively, and when the two are used in combination, a better technical effect is obtained.

Fig. 1 is a schematic flow chart of a method implementation of indicating TCI status and search space configuration information at a network side, and as shown in the drawing, may include:

step 101, the network side configures the association relation between the TCI state index of CORESET and the configuration information of the search space to the terminal through a high-level signaling;

step 102, the network side indicates CORESET the TCI state index to the terminal through the higher layer signaling.

Fig. 2 is a schematic flow chart of an implementation of a method for detecting a PDCCH at a terminal side, and as shown in the drawing, may include:

Step 201, a terminal receives a TCI state index of CORESET indicated by a high-level signaling at a network side;

step 202, the terminal detects the PDCCH according to the association relation between the TCI state index configured by the pre-configuration or the high-layer signaling and the configuration information of the search space.

In implementation, the TCI state index of CORESET is indicated to the terminal by the network side through higher layer signaling, which may be indicated by the MAC CE.

The present solution is an indication solution for combining TCI status and search space configuration information, and a possible implementation will be described below.

1. An implementation of multiple search spaces is configured.

The network side may be: the association relationship between the TCI state index of CORESET and the configuration information of the search space is configured to the terminal by the network side through the high-level signaling, which comprises:

Correspondingly, the terminal side may then be: the terminal detects PDCCH according to the association relation between the TCI state index configured by pre-configuration or high-layer signaling and the configuration information of the search space, and the method comprises the following steps:

Specifically, the network side configures a plurality of search spaces, and the plurality of search spaces are associated to the same CORESET, and each search space is identified by an index.

Meanwhile, the network side configures the corresponding relation between the TCI state of CORESET and the search space.

When the network side indicates to switch CORESET the TCI through signaling, for example, MAC CE, the terminal detects CORESET only on the search space associated with the corresponding TCI.

The detection opportunities for multiple search spaces do not overlap.

The terminal will only detect one of the search spaces at CORESET.

Example 1:

the network side configures three search spaces for the terminal: ss#1, ss#2, ss#3, all three search spaces being associated to CORESET #1. The network side configures 3 TCI states, tci#1, tci#2, tci#3, of CORESET #1 for the terminal at the same time.

The association relationship between the TCI state and the search space is configured or predefined at the network side, for example, tci#1 associates with ss#1, tci#2 associates with ss#2, and tci#3 associates with ss#3.

The network side indicates that the TCI of the terminal CORESET #1 is tci#2 through the MAC CE, and the terminal detects the CORESET #1 only on the ss#2 after receiving the MAC CE, and does not detect the CORESET #1 on the ss#1 and the ss#3.

By means of the embodiment, the TCI state of CORESET of the terminal and the configuration of the search space can be updated simultaneously, and the terminal can receive PDCCH in a new beam direction quickly.

2. Implementation of multiple sets of configurations to configure a search space.

The network side may be:

Correspondingly, the terminal side may then be:

the terminal detects PDCCH according to the association relation between the TCI state index configured by pre-configuration or high-layer signaling and the configuration information of the search space, and the method comprises the following steps:

Specifically, the network side configures a search space, and one or more configuration parameters of the search space have multiple sets of configurations, and each set of configuration is identified by an index.

Meanwhile, the corresponding relation between the TCI state of the network side configuration CORESET and the multiple sets of configuration of the search space.

When the network side switches CORESET TCIs through signaling, for example, the MAC CE, the terminal detects CORESET only in the PDCCH detection opportunity under the configuration of the search space associated with the corresponding TCI.

The PDCCH detection opportunities in the configuration of multiple search spaces do not overlap.

The terminal will only detect the configuration of one of the search spaces at CORESET.

If there are no parameters configured, the parameters under the parameter set are configured according to predefined parameters or a specific search space.

Example 2:

The network side configures a search space ss#1 for the terminal, and configures three offset configuration parameter values offset#1, offset#2, and offset#3, where other search space configuration parameter values are the same, for example, PDCCH period and aggregation level are the same. The network side configures the 3 TCI states, tci#1, tci#2, tci#3, of CORESET #1 for the terminal.

The association between the network side configuration or predefined TCI state and the configuration parameter values of the search space, e.g. tci#1 associated with offset#1, tci#2 associated with offset#2, tci#3 associated with offset#3.

The network side indicates that the TCI of CORESET #1 of the terminal is tci#2 through the MAC CE, and the terminal detects CORESET #1 at the PDCCH detection position determined according to the value of offset#2, and does not detect CORESET #1 at the PDCCH detection position determined according to the values of offset#1 and offset#3.

Based on the same inventive concept, the embodiments of the present invention further provide a base station, a terminal, and a computer readable storage medium, and because the principle of solving the problems of these devices is similar to that of the search space indication method and the search space determination method, the implementation of these devices may refer to the implementation of the method, and the repetition is omitted.

In implementing the technical scheme provided by the embodiment of the invention, the method can be implemented as follows.

Fig. 3 is a schematic structure diagram of a base station, and as shown in the drawing, the base station includes:

the processor 300 is configured to read the program in the memory 320, and execute the following procedures:

a transceiver 310 for receiving and transmitting data under the control of the processor 300.

Wherein in fig. 3, a bus architecture may comprise any number of interconnected buses and bridges, and in particular, one or more processors represented by processor 300 and various circuits of memory represented by memory 320, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 310 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 may store data used by the processor 300 in performing operations.

The embodiment of the invention also provides a base station, which comprises:

In an implementation, when the network side configuration module is further configured to configure, to the terminal, the association relationship between the TCI state index of CORESET and the configuration information of the search space through the higher layer signaling, the method includes:

For convenience of description, the parts of the above apparatus are described as being functionally divided into various modules or units, respectively. Of course, the functions of each module or unit may be implemented in the same piece or pieces of software or hardware when implementing the present invention.

Fig. 4 is a schematic structural diagram of a terminal, as shown in the drawing, the terminal includes:

the processor 400 is configured to read the program in the memory 420, and execute the following procedures:

a transceiver 410 for receiving and transmitting data under the control of the processor 400.

Wherein in fig. 4, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 400 and various circuits of memory represented by memory 420, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 410 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 430 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 400 in performing operations.

The embodiment of the invention also provides a terminal, which comprises:

The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for executing the method for indicating the PDCCH detection search space and/or the PDCCH detection method.

In specific implementation, reference may be made to the implementation of the method for indicating the PDCCH detection search space and/or the PDCCH detection method described above.

In summary, in the technical solution provided in the embodiment of the present invention, the relation between the network side configuration CORESET TCI state and the SS or the configuration parameters of the SS, and the terminal detects CORESET only in the SS or the SS configuration corresponding to a certain TCI state. The configuration of the SS can be switched while the TCI of CORESET is switched, so that the network side realizes TDM beam scanning, and the terminal side realizes fast beam switching without causing data interruption.

It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method of indicating a transmission configuration indication, TCI, state and search space configuration information, comprising:

the network side configures the incidence relation between the TCI state index of the control resource set CORESET and the configuration information of the search space to the terminal through a high-layer signaling;

The network side indicates CORESET a TCI state index to the terminal through a high-layer signaling, wherein the TCI state index is used for determining at least one configuration parameter value of a corresponding search space index or search space with an association relation;

The association relationship between the TCI state index of CORESET and the configuration information of the search space is configured to the terminal by the network side through the high-level signaling, which includes:

The network side configures the association relation between at least one TCI state index and at least one search space index of CORESET to the terminal through a high-layer signaling;

Or alternatively

2. The method of claim 1, wherein the at least one TCI state index and at least one search space index of CORESET have a one-to-one association.

3. The method of claim 1 or 2, wherein physical downlink control channel, PDCCH, detection locations of a plurality of search spaces do not overlap each other.

4. The method of claim 1, wherein the at least one TCI state index of CORESET and the at least one configuration parameter value of the search space have a one-to-one association.

5. The method of claim 4, wherein PDCCH detection locations determined by the plurality of configuration parameter values of the search space do not overlap each other.

6. The method of claim 1, wherein the network side indicates CORESET the TCI state index to the terminal through higher layer signaling, as indicated by a medium access control element, MAC CE.

7. A method for detecting PDCCH, comprising:

Detecting PDCCH by the terminal according to the association relation between the TCI state index configured by pre-configuration or high-layer signaling and the configuration information of the search space;

the method for detecting the PDCCH by the terminal according to the association relation between the TCI state index configured by pre-configuration or high-layer signaling and the configuration information of the search space comprises the following steps:

The terminal detects PDCCH in a search space of a search space index associated with a TCI state index of CORESET indicated by a high-level signaling;

Or alternatively

8. The method of claim 7, wherein the at least one TCI state index and at least one search space index of CORESET have a one-to-one association.

9. The method of claim 8, wherein PDCCH detection locations of multiple search spaces do not overlap each other.

10. The method of claim 7, wherein the at least one TCI state index of CORESET and the at least one configuration parameter value of the search space have a one-to-one association.

11. The method of claim 7 or 10, wherein PDCCH detection locations determined by the plurality of configuration parameter values of the search space do not overlap each other.

12. The method of claim 8 wherein the TCI state index of CORESET, indicated by the terminal receiving the network side higher layer signaling, is indicated by the network side through the MAC CE.

13. A base station, comprising:

Indicating CORESET a TCI state index to the terminal through a high-level signaling, wherein the TCI state index is used for determining at least one configuration parameter value of a corresponding search space index or search space with an association relation;

a transceiver for receiving and transmitting data under the control of the processor;

Wherein, the association relationship between the TCI state index of CORESET and the configuration information of the search space is configured to the terminal through the high-layer signaling, which comprises:

Configuring the association relation between at least one TCI state index and at least one search space index of CORESET to a terminal through high-level signaling;

Or alternatively

And configuring the association relation between the at least one TCI state index of CORESET and the at least one configuration parameter value of a search space to the terminal through high-level signaling.

14. A base station, comprising:

The network side indication module is used for indicating the TCI state index of CORESET to the terminal through a high-layer signaling, wherein the TCI state index is used for determining at least one configuration parameter value of a corresponding search space index or search space with the association relation;

Or alternatively

15. A terminal, comprising:

Detecting the PDCCH according to the association relation between the TCI state index configured by pre-configuration or high-layer signaling and the configuration information of the search space comprises the following steps:

detecting a PDCCH within a search space of a search space index associated with a TCI state index of CORESET indicated by high-level signaling;

Or alternatively

16. A terminal, comprising:

The terminal detection module is used for detecting the PDCCH according to the association relation between the TCI state index configured by the pre-configuration or high-layer signaling and the configuration information of the search space;

Or alternatively

17. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program for executing the method of any one of claims 1 to 12.