CN116636287A

CN116636287A - Transmission enhancement method and communication equipment

Info

Publication number: CN116636287A
Application number: CN202180089197.9A
Authority: CN
Inventors: 黎添; 生嘉
Original assignee: JRD Communication Shenzhen Ltd
Current assignee: JRD Communication Shenzhen Ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2023-08-22
Anticipated expiration: 2041-01-12
Also published as: WO2022150981A1; CN116636287B

Abstract

The application provides a transmission enhancement method, which comprises the following steps: receiving a PDCCH transmission, wherein the PDCCH transmission is configured with a first set of search spaces and their associated first set of control resources and a second set of search spaces and their associated second set of control resources; determining and decoding a first PDCCH candidate according to the first search space set and the first control resource set to obtain connection relation information between the first PDCCH candidate and the second PDCCH candidate; obtaining the second search space set according to indication information, wherein the indication information is used for indicating the second search space set; and monitoring and decoding the second PDCCH candidate according to the second search space set, the second space resource set and the connection relation information. The application also provides corresponding communication equipment. By the method, PDCCH transmission enhancement is realized.

Description

Transmission enhancement method and communication equipment

[ field of technology ]

The disclosed embodiments of the present application relate to the field of communication technology, and more particularly, to a transmission enhancing method and a communication apparatus.

[ background Art ]

In a New Radio (NR) system, since a PDCCH channel may be blocked from a Transmission/Reception Point (TRP) to a User Equipment (UE), it is necessary to enhance the reliability of the PDCCH in order to fully exploit the advantages of a Multiple-TRP (Multiple-TRP) system.

[ application ]

According to an embodiment of the present application, a transmission enhancing method and a communication device are provided to solve the above-mentioned problems.

According to a first aspect of the present application, an exemplary transmission enhancement method is disclosed, comprising: receiving a PDCCH transmission, wherein the PDCCH transmission is configured with a first set of search spaces and their associated first set of control resources and a second set of search spaces and their associated second set of control resources; determining and decoding a first PDCCH candidate according to the first search space set and the first control resource set to obtain connection relation information between the first PDCCH candidate and the second PDCCH candidate; obtaining the second search space set according to indication information, wherein the indication information is used for indicating the second search space set; and monitoring and decoding the second PDCCH candidate according to the second search space set, the second space resource set and the connection relation information.

According to a second aspect of the present application, an exemplary transmission enhancement method is disclosed, comprising: and performing PDCCH transmission, wherein the PDCCH transmission is configured with a first search space set and an associated first control resource set thereof and a second search space set and an associated second control resource set thereof, and the second search space set is indicated by indication information.

According to a third aspect of the present application, an exemplary user equipment is disclosed, which is applied to a multi-TRP system, and includes: a processor, a memory and communication circuitry, the memory storing instructions that, when executed by the processor, cause the processor to perform the method of the first aspect described above through the communication circuitry.

According to a fourth aspect of the present application, an exemplary base station is disclosed, applying a multi-TRP system, comprising: a processor, a memory and communication circuitry, the memory storing instructions that, when executed by the processor, cause the processor to perform the method of the second aspect described above through the communication circuitry.

According to a fifth aspect of the present application, an exemplary non-volatile computer storage medium is disclosed, characterized in that instructions are stored, which instructions, when executed, implement performing the method according to the first aspect described above.

According to a sixth aspect of the present application, an exemplary non-volatile computer storage medium is disclosed, characterized in that instructions are stored, which instructions, when executed, implement a method of performing the second aspect as described above.

The application has the beneficial effects that: the first PDCCH candidate is decoded according to the first search space set and the first control resource set to obtain connection relation information between the first PDCCH candidate and the second PDCCH candidate, and the second search space set is obtained through the indication information, so that the second PDCCH candidate is monitored and decoded according to the second search space set, the second space resource set and the connection relation information, and PDCCH transmission enhancement is realized.

[ description of the drawings ]

The application will be further described with reference to the accompanying drawings and embodiments, in which:

fig. 1 is a schematic diagram of a multi-TRP system to which an embodiment of the present application is applied.

Fig. 2 is a flowchart of a transmission enhancing method according to a first embodiment of the present application.

Fig. 3 is a flowchart of a transmission enhancing method according to a second embodiment of the present application.

Fig. 4 is a schematic diagram of overlapping PDCCH monitoring opportunities to which embodiments of the present application are applied.

Fig. 5 is a flowchart of a transmission enhancing method according to a third embodiment of the present application.

Fig. 6 is a schematic structural view of a communication device according to the first embodiment of the present application.

Fig. 7 is a schematic structural diagram of a communication device according to a second embodiment of the present application.

Fig. 8 is a schematic structural view of a nonvolatile computer-readable storage medium of the first embodiment of the present application.

Fig. 9 is a schematic structural view of a nonvolatile computer-readable storage medium according to a second embodiment of the present application.

[ detailed description ] of the application

In order to enable those skilled in the art to better understand the technical solution of the present application, the following description of the related art of the present application is provided.

The UE needs to know the location of the physical downlink control channel (Physical Downlink Control Channel, PDCCH) in the frequency domain and the location in the time domain in order to successfully decode the PDCCH. In the NR system, information such as frequency domain resource information of the PDCCH and the number of orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols occupied by the time domain are encapsulated in a control resource set (Control Resource Set, core), and information such as the PDCCH start OFDM symbol, a listening period, and an associated control resource set are encapsulated in a Search Space (Search Space).

After the UE determines the candidate time-frequency locations of the PDCCHs according to the search space and the control resource set configuration, these candidate resources are called PDCCH candidates (PDCCH candidates). The UE performs Polar decoding and cyclic redundancy check (Cyclic Redundancy Check, CRC) on each PDCCH candidate, and when the CRC passes, it indicates that the current PDCCH candidate is successfully decoded.

As shown in fig. 1, a plurality of PDCCHs (i.e., PDCCH1 and PDCCH 2) are transmitted from a plurality of TRPs to one UE, are transmitted using different beams, and indicate the same resource allocation information for scheduling one physical downlink shared channel (Physical Downlink Share Channel, PDSCH)/physical uplink shared channel (Physical Uplink Share Channel, PUSCH), etc. By multi-TRP transmission, the reliability of PDCCH may be enhanced.

Currently, regarding PDCCH transmission in an enhanced multi-TRP system, a Repetition (Repetition) scheme is supported, and two PDCCH candidates are Explicitly connected (explicit Link), the maximum number of PDCCH candidates being 2.

Regarding one PDCCH transmission configuration two transmission configuration indications (Transmission Configuration Indication, TCI), two Search Space sets (SS sets) are supported to be associated to corresponding control resource sets, respectively.

After the connection between two PDCCH candidates is established, regarding the Blind Detection (BD) limitation, the following has been envisaged: the UE does not decode the two single PDCCH candidates, and only decodes the combined candidate; the UE decodes the two single PDCCH candidates; the UE decodes the first PDCCH candidate and the PDCCH candidates after combination; and the UE decodes the two PDCCH candidates independently, and then decodes the combined PDCCH candidates.

In order to make the technical scheme of the present application better understood by those skilled in the art, the technical scheme of the present application will be further described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 2, a flowchart of a transmission enhancing method according to a first embodiment of the present application is shown. The method is applicable to a PDCCH transmission enhanced scenario in the multi-TRP system of fig. 1, which is performed by a UE. The method comprises the following steps:

step 210: and receiving the PDCCH transmission.

Wherein the PDCCH transmission is configured with a first set of search spaces and their associated first set of control resources and a second set of search spaces and their associated second set of control resources.

Step 220: and determining and decoding the first PDCCH candidate according to the first search space set and the first control resource set to obtain connection relation information of the first PDCCH candidate and the second PDCCH candidate.

There is an explicit connection relationship between the first PDCCH candidate and the second PDCCH candidate, and connection relationship information between the first PDCCH candidate and the second PDCCH candidate is a position of a starting control channel element (Control Channel Element, CCE), a PDCCH candidate index value, and the like.

The first PDCCH candidate is decoded to obtain connection relationship information between the first PDCCH candidate and the second PDCCH candidate, for example, its starting CCE position, PDCCH candidate index value, etc.

Step 230: and obtaining a second search space set according to the indication information, wherein the indication information is used for indicating the second search space set.

The indication message may be associated with the first set of search spaces for the first PDCCH candidate or may be associated with the first PDCCH candidate.

Step 240: and monitoring and decoding a second PDCCH candidate according to the second search space set, the second space resource set and the connection relation information.

The second PDCCH candidate is monitored and decoded by the second set of search spaces, the second set of spatial resources, and connection relationship information between the first PDCCH candidate and the second PDCCH candidate, e.g., its starting CCE location, PDCCH candidate index value.

In this embodiment, the connection relation information between the first PDCCH candidate and the second PDCCH candidate is obtained by decoding the first PDCCH candidate according to the first search space set and the first control resource set, and the second search space set is obtained by the indication information, so that the second PDCCH candidate is monitored and decoded according to the second search space set, the second space resource set and the connection relation information, and PDCCH transmission enhancement is achieved.

As described above, the indication information is used to indicate the second set of search spaces, and according to the indication information, the second set of search spaces may be obtained. In some embodiments, the first set of search spaces and the second set of search spaces are both available, and the first set of search spaces and the second set of search spaces and the indication information are configured by high-level signaling.

Higher layer signaling is radio resource control (Radio Resource Control, RRC). For example, the first and second available sets of search spaces are configured by the higher layer parameters searchspacestoadmodlist contained by the higher layer parameters PDCCH-Config. I.e. the number of search space sets configured by higher layer signaling is 2.

In some examples, the configuration information of the second set of search spaces is obtained from the configuration information of the higher-level set of search spaces, i.e., from the configuration information of the higher-level set of search spaces, the UE may directly obtain the configuration information of the second set of search spaces.

At this time, step 230 includes: and acquiring configuration information of the second search space set from the high-level search space configuration information, thereby acquiring the second search space set.

That is, the configuration information of the second search space set is obtained from the configuration information of the search space of the higher layer, that is, configured by the higher layer signaling, and at this time, the configuration information of the search space set of the higher layer can be regarded as the indication information. The UE directly acquires configuration information of the second search space set from the higher-layer search space configuration information, and then monitors and decodes the second PDCCH candidate by combining connection relation information between the first PDCCH candidate and the second PDCCH candidate.

In other examples, the index value indicating the second set of search spaces is indicated by a newly added one of the higher-level parameters SearchSpace of the first set of search spaces, i.e., the indication information is related to the first set of search spaces.

At this time, step 230 includes: and obtaining an index value of the second search space set from one newly added parameter in the high-level parameter SearchSpace of the first search space set, thereby obtaining the second search space set.

That is, one parameter added in the higher-level parameter SearchSpace of the first search space set is used to indicate the search space set index value associated therewith, which is used to indicate the index value of the second search space set. According to the index value of the search space set, namely the index value of the second search space set, the UE can obtain the second search space set, and then the second PDCCH candidate is monitored and decoded by combining the connection relation information between the first PDCCH candidate and the second PDCCH candidate.

In other examples, the indication information is indicated by downlink control information carried by the first PDCCH candidate, i.e., the indication information is associated with the first PDCCH candidate. Specifically, in some examples, the indication information indicates that the index value of the second search space set is indicated by carrying information in the downlink control information carried by the first PDCCH candidate. The carrying information may be a parameter newly added in the downlink control information.

At this time, step 230 includes: and obtaining an index value of the second search space set according to the carrying information in the downlink control information carried by the first PDCCH candidate, thereby obtaining the second search space set.

That is, the newly added parameter in the DCI carried by the first PDCCH candidate is used to indicate the search space set index value associated with the newly added parameter, where the search space set index value is used to indicate the index value of the second search space set. The UE decodes a first PDCCH candidate in the first search space set and the associated first control resource set, then obtains an index value of a second search space set through the associated search space set index value in the DCI, and can obtain a second search space set, and further monitors and decodes a second PDCCH candidate by combining connection relation information between the first PDCCH candidate and the second PDCCH candidate.

In some embodiments, the connection relationship information between the first PDCCH candidate and the second PDCCH candidate is derived from the first PDCCH candidate. It can be seen that, by obtaining the connection relationship information between the first PDCCH candidate and the second PDCCH candidate according to the first PDCCH candidate, the problem that there is no specific indication mode of the connection relationship information between the first PDCCH candidate and the second PDCCH candidate at present is solved, that is, the indication of the connection relationship between the first PDCCH candidate and the second PDCCH candidate is realized. Specifically, after decoding the first PDCCH candidate according to the first search space set and the first control resource set associated therewith, the UE saves related information of the first PDCCH candidate, for example, a starting CCE location, a PDCCH candidate index value, etc., as related information of the second PDCCH candidate, that is, connection relationship information between the first PDCCH candidate and the second PDCCH candidate, for decoding the second PDCCH candidate.

As shown in fig. 3, a flowchart of a transmission enhancing method according to a third embodiment of the present application is shown. The method can be applied to the PDCCH transmission enhancement scenario in the multi-TRP system of fig. 1, and is executed by the UE, and includes, based on the above embodiments:

step 310: if the monitoring occasions of the second PDCCH candidate and the first PDCCH candidate overlap, the second PDCCH candidate and the first PDCCH candidate are monitored simultaneously, wherein the second control resource set of the second PDCCH candidate and the first control resource set of the first PDCCH candidate are configured with different quasi co-location type D properties.

The Quasi Co-Located type of the control resource set includes Quasi Co-Located type D (QCL-type D). In the current protocol, quasi Co-Located type D (QCL-type) is a Quasi Co-Located Property (Property) describing the spatial reception parameters of two ports.

TCIs are respectively configured by the second control resource set and the first control resource set, the quasi co-location types configured by the two TCIs are quasi co-location type D, the second control resource set of the second PDCCH candidate and the first control resource set of the first PDCCH candidate are configured with different quasi co-location type D properties, namely the quasi co-location type D properties configured by the two TCIs are different, and at the moment, the UE can monitor the second PDCCH candidate and the first PDCCH candidate simultaneously. That is, when the PDCCH repetition scheme employs intra-slot repetition, or when two PDCCH candidates are frequency/space division multiplexed, the two PDCCH candidates may be at overlapping PDCCH monitoring occasions (Monitoring Occasion), i.e., the second PDCCH candidate overlaps with the monitoring occasion of the first PDCCH candidate, the UE supports simultaneous monitoring of two PDCCH candidates having different quasi-co-located type D properties, solving the problem that the UE will not be able to monitor the two PDCCHs due to the overlapping PDCCH monitoring occasions at present.

As shown in fig. 4, PDCCH candidate1 and PDCCH candidate2 are two PDCCH candidates having a connection relationship, i.e., a first PDCCH candidate and a second PDCCH candidate, and monitoring opportunities of the two PDCCH candidates overlap when the PDCCH repetition scheme employs intra-slot repetition or when the two PDCCH candidates are frequency division multiplexed/space division multiplexed.

When the PDCCH repetition scheme uses intra-slot repetition, as shown in fig. 4 (a), since one control resource set may have 1/2/3 of the symbols in the time domain, the monitoring occasions of PDCCH candidate1 and PDCCH candidate2 may overlap. As shown in fig. 4 (b), if two PDCCH candidates are frequency division multiplexed, the two PDCCH candidates occupy different frequency domain resources and the time domain occupies the same resources, and thus, the monitoring occasions of PDCCH candidate1 and PDCCH candidate2 overlap. As shown in fig. 4 (c), if two PDCCH candidates are space division multiplexed, then the two PDCCH candidates occupy the same time-frequency resource, and thus the monitoring occasions of PDCCH candidate1 and PDCCH candidate2 overlap.

At this time, it is assumed that two control resource sets corresponding to two PDCCH candidates in fig. 3 are respectively configured with different TCIs, that is, the first control resource set and the second control resource set are configured with different TCIs, and the quasi co-located type configured by the two TCIs is the quasi co-located type D, so that the spatial domain receiving parameters for monitoring PDCCH candidate1 and PDCCH candidate2 are different, that is, the quasi co-located type D is different in nature. At this time, the UE can monitor the two PDCCH candidates simultaneously, that is, the UE supports to monitor two PDCCH candidates with different quasi co-located types D simultaneously, which solves the problem that the UE only monitors PDCCHs with the same quasi co-located type D property in case of multiple overlapping PDCCH monitoring occasions, and is suitable for enhancing PDCCH reliability in a multi-TRP system.

In this embodiment, by simultaneously monitoring the second PDCCH candidate and the first PDCCH candidate of the quasi co-located type D configured differently for the corresponding control resource set by the UE in the case that the monitoring occasions of the second PDCCH candidate and the first PDCCH candidate overlap, the problem that the UE monitors only the PDCCH having the same quasi co-located type D property in the case of a plurality of overlapping PDCCH monitoring occasions is solved, and the method is applicable to enhancing PDCCH reliability in a multi-TRP system.

In some embodiments, the quasi co-located type indicated in the transmission configuration indication state of the first set of control resources and the second set of control resources are each quasi co-located type D, and the indicated source reference signal types are not identical.

The PDCCH reception beams are informed using TCI states, each TCI state indicating a source reference signal to be spatially quasi co-located with the signal to be received, and if the quasi co-located type in the TCI state is quasi co-located type D, i.e. quasi co-located under spatial reception parameters, the demodulation reference signal (Demodulation Reference Signal, DM-RS) of the PDCCH is quasi co-located with the source reference signal, the PDCCH can be received using the same beam as the source reference signal. The source reference signal type under the quasi co-location type D of the DMRS of the PDCCH may be SSB (labeled as source reference signal 1), CSI-RS resource under the higher layer parameter NZP-CSI-RS-resource set configured with the higher layer parameter trs-Info (labeled as source reference signal 2), CSI-RS resource under the higher layer parameter NZP-CSI-RS-resource set configured with the higher layer parameter repetition (labeled as source reference signal 3), and CSI-RS resource under the higher layer parameter NZP-CSI-RS-resource set not configured with the higher layer parameter trs-Info and repetition (labeled as source reference signal 4).

For the first set of control resources and the second set of control resources to be configured with different quasi co-sited type D properties, if the quasi co-sited types indicated in the transmission configuration indication state of the first set of control resources and the second set of control resources are both quasi co-sited type D, the indicated source reference signal types are different, i.e. the source reference signal types indicated in the TCI state are two of the source reference signals 1-4. For example, if the source reference signal indicated by the TCI state of the first set of control resources is source reference signal 2, then the source reference signal indicated by the TCI state of the second set of control resources is source reference signal 1, 3 or 4.

In some embodiments, the transmission configurations of the first set of control resources and the second set of control resources indicate that the indicated source reference signal types in the state are different and that the indicated directions of the receive beams are the same or different.

The direction of the reception beam may be defined by an angle of arrival and an average angle of arrival, and in particular, the angle of arrival may be further divided into a horizontal angle of arrival and a vertical angle of arrival.

For the first set of control resources and the second set of control resources to be configured with different quasi co-sited type D properties, if the indicated source reference signal types in the transmission configuration indication state of the first set of control resources and the second set of control resources are different, the indicated directions of the received beams are the same or different, e.g. at least one of the angle of arrival of the received beams and the average angle of arrival is different.

In some embodiments, the transmission configuration of the first set of control resources and the second set of control resources indicates that the indicated source reference signal types in the state are the same and that the indicated spatial domain reception parameters of the reference signals are different.

If the UE is able to receive multiple beams with multiple panels at the same time, two panels may be used to receive PDCCH candidates with different beam directions, the two PDCCH candidates being configured by corresponding sets of control resources and the two sets of control resources being configured with different quasi co-sited type D properties. At this time, in the TCI states of the two control resource sets, if the source reference signal types are the same, the spatial domain receiving parameters of the reference signals are different; if the source reference signal types are not the same, the spatial domain receiving parameters of the source reference signals may be the same or different.

For example, the user equipment receives PDCCH transmissions using a first panel and a second panel, where a first quasi co-sited type D configuration is configured on the first panel of the UE, a second quasi co-sited type D configuration is configured on the second panel, and the two quasi co-sited type D configurations are different, both configurations being used to receive PDCCH transmissions at the same time.

Fig. 5 is a flowchart of a transmission enhancing method according to an embodiment of the present application. The method is applicable to a PDCCH transmission enhancement scenario in the multi-TRP system of fig. 1, performed by a base station, for example, which communicates with a UE through TRP1 and TRP2 in fig. 1. The method comprises the following steps:

step 510: and performing PDCCH transmission, wherein the PDCCH transmission is configured with a first search space set and an associated first control resource set thereof and a second search space set and an associated second control resource set thereof, and the second search space set is indicated by the indication information.

That is, the indication information is used to indicate the second set of search spaces.

The indication message may be associated with the first set of search spaces for the first PDCCH candidate or may be associated with the first PDCCH candidate. The related contents have been described in detail in the above embodiments, and will not be described here for brevity.

In this embodiment, the second search space set is indicated by the indication information, so that monitoring and decoding of the second PDCCH candidate are implemented, and PDCCH transmission enhancement is implemented.

In some embodiments, the first set of search spaces and the second set of search spaces are both available, and the first set of search spaces and the second set of search spaces and the indication information are configured by high-level signaling.

In some embodiments, the configuration information for the second set of search spaces is obtained from higher-level search space configuration information.

In some embodiments, the index value indicating the second set of search spaces is indicated by a newly added one of the higher-level parameters SearchSpace of the first set of search spaces.

In some embodiments, the indication information is indicated by downlink control information carried by a first PDCCH candidate determined and decoded from the first set of search spaces and the first set of control resources.

In some embodiments, the indication information indicates that the index value of the second search space set is indicated by carried information in downlink control information carried by the first PDCCH candidate.

In some embodiments, the second set of control resources is configured with different quasi co-sited type D properties than the first set of control resources.

In some embodiments, if the PDCCH transmission is received by a first panel and a second panel, a first quasi co-sited type D configuration is configured on the first panel and a second quasi co-sited type D configuration is configured on the second panel, the first quasi co-sited type D configuration being different from the second quasi co-sited type D configuration.

It should be noted that, the foregoing embodiments of the transmission enhancing method have been described in detail, and will not be described herein, for brevity, the description of the related embodiments will be described in detail.

As shown in fig. 6, which is a schematic structural diagram of a communication device according to a first embodiment of the present application, the communication device 600 includes a memory 610, a processor 620, and a communication circuit 630, where the memory 610 and the communication circuit 630 are respectively connected to the processor 620.

Memory 610 may include read-only memory and/or random access memory, etc., and provides instructions and data to processor 620. A portion of the memory 610 may also include non-volatile random access memory (NVRAM). The memory 610 stores instructions.

The communication circuit 630 is used for transmitting and receiving data, and is an interface through which the communication device 600 communicates with other communication devices.

The processor 620 controls the operation of the communication device, and the processor 620 may also be referred to as a CPU (Central Processing Unit ). The processor 620 may be an integrated circuit chip with signal processing capabilities. Processor 620 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The processor 620 is configured to execute instructions to implement the method provided by any one of the first embodiment to the second embodiment of the transmission enhancement method of the present application and any non-conflicting combination.

The communication device in this embodiment may be a user device or may be a separate component, such as a baseband board, that may be integrated into the user device.

As shown in fig. 7, a schematic structural diagram of a communication device according to a second embodiment of the present application is shown, the communication device 700 includes a memory 710, a processor 720, and a communication circuit 730, where the memory 710 and the communication circuit 730 are respectively connected to the processor 720.

Memory 710 may include read only memory and/or random access memory, etc., and provides instructions and data to processor 720. A portion of the memory 710 may also include non-volatile random access memory (NVRAM). The memory 710 stores instructions.

The communication circuit 730 is used to transmit and receive data, and is an interface through which the communication device 700 communicates with other communication devices.

The processor 720 controls the operation of the communication device, the processor 720 may also be referred to as a CPU (Central Processing Unit ). Processor 720 may be an integrated circuit chip with signal processing capabilities. Processor 720 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The processor 720 is configured to execute instructions to implement the method provided by any one of the third embodiments of the transmission enhancement method of the present application and any non-conflicting combination.

The communication device in this embodiment may be a base station or may be a separate component, such as a baseband board, that may be integrated into the base station.

As shown in fig. 8, a schematic structural diagram of a non-volatile computer readable storage medium according to an embodiment of the present application is shown, where the non-volatile computer readable storage medium 800 stores instructions 801, and the instructions 801 when executed implement a method provided by any one of the above-mentioned first and second embodiments and any non-conflicting combination of the transmission enhancement method according to the present application.

The non-volatile computer readable storage medium 800 may be a portable storage medium such as a usb disk, an optical disk, a base station, or a separate component that may be integrated into the base station, for example, a baseband board, etc.

As shown in fig. 9, a schematic structural diagram of a non-volatile computer readable storage medium 900 according to an embodiment of the present application, where instructions 901 are stored in the non-volatile computer readable storage medium 900, and the instructions 901 when executed implement a method provided by any one of the above-mentioned third embodiments of the transmission enhancement method according to the present application and any combination that does not conflict.

The non-volatile computer readable storage medium 900 may be a portable storage medium such as a usb disk, an optical disk, a base station, or a separate component that may be integrated into the base station, for example, a baseband board, etc.

The foregoing is only the embodiments of the present application, and therefore, the patent scope of the application is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present application and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the application.

Claims

A transmission enhancement method, comprising:

receiving a PDCCH transmission, wherein the PDCCH transmission is configured with a first set of search spaces and their associated first set of control resources and a second set of search spaces and their associated second set of control resources;

determining and decoding a first PDCCH candidate according to the first search space set and the first control resource set to obtain connection relation information between the first PDCCH candidate and the second PDCCH candidate;

obtaining the second search space set according to indication information, wherein the indication information is used for indicating the second search space set;

and monitoring and decoding the second PDCCH candidate according to the second search space set, the second space resource set and the connection relation information.
The method of claim 1, wherein the first set of search spaces and the second set of search spaces are both available, and wherein the first set of search spaces and the second set of search spaces and the indication information are configured by higher layer signaling.
The method as recited in claim 2, wherein configuration information for said second set of search spaces is obtained from higher-level search space configuration information;

obtaining the second search space set according to the indication information, including:

and acquiring configuration information of the second search space set from the configuration information of the search space of a higher layer, so as to acquire the second search space set.
The method as claimed in claim 2, wherein the indication information indicates that the index value of the second search space set is indicated by a newly added one of the higher-level parameters SearchSpace of the first search space set;

obtaining the second search space set according to the indication information, including:

and obtaining an index value of the second search space set from one newly added parameter in the high-level parameter SearchSpace of the first search space set, thereby obtaining the second search space set.
The method of claim 1, wherein the indication information is indicated by downlink control information carried by the first PDCCH candidate.
The method of claim 5, wherein the indication information indicates that an index value of the second set of search spaces is indicated by carrying information in downlink control information carried by the first PDCCH candidate;

obtaining the second search space set according to the indication information, including:

and obtaining an index value of the second search space set according to the carrying information in the downlink control information carried by the first PDCCH candidate, thereby obtaining the second search space set.
The method of claim 1, wherein the connection relationship information is obtained from the first PDCCH candidate.
The method as recited in claim 1, further comprising:

and if the monitoring occasions of the second PDCCH candidate and the first PDCCH candidate are overlapped, simultaneously monitoring the second PDCCH candidate and the first PDCCH candidate, wherein the second control resource set of the second PDCCH candidate and the first control resource set of the first PDCCH candidate are configured with different quasi co-location type D properties.
The method of claim 8, wherein the transmission configuration of the first set of control resources and the second set of control resources indicates that the quasi co-located type indicated in the state is quasi co-located type D and that the indicated source reference signal types are different.
The method of claim 8, wherein the transmission configuration of the first set of control resources and the second set of control resources indicates that the indicated source reference signal types in the state are different and that the indicated directions of the received beams are the same or different.
The method of claim 8, wherein the transmission configuration of the first set of control resources and the second set of control resources indicates that the indicated source reference signal type in the state is the same and that the indicated spatial domain reception parameters of the reference signals are different.
The method of claim 11, wherein the user device receives PDCCH transmissions using a first panel and a second panel, wherein a first quasi co-sited type D configuration is configured on the first panel, a second quasi co-sited type D configuration is configured on the second panel, and the first quasi co-sited type D configuration is different from the second quasi co-sited type D configuration.
A transmission processing method, characterized by comprising:

and performing PDCCH transmission, wherein the PDCCH transmission is configured with a first search space set and an associated first control resource set thereof and a second search space set and an associated second control resource set thereof, and the second search space set is indicated by indication information.
The method of claim 13, wherein,

the first set of search spaces and the second set of search spaces are both available, and the first set of search spaces and the second set of search spaces and the indication information are configured by high-level signaling.
The method as recited in claim 14, wherein said indication information indicates that configuration information for said second set of search spaces is obtained from higher-level search space configuration information.
The method as recited in claim 14 wherein said indication information indicates that an index value of said second set of search spaces is indicated by a newly added one of the higher level parameters SearchSpace of said first set of search spaces.
The method of claim 13, wherein the indication information is indicated by downlink control information carried by a first PDCCH candidate determined and decoded from the first set of search spaces and the first set of control resources.
The method of claim 17, wherein the indication information indicates that an index value of the second set of search spaces is indicated by carrying information in downlink control information carried by the first PDCCH candidate.
The method of claim 13, wherein the second set of control resources and the first set of control resources are configured with different quasi co-sited type D properties.
The method of claim 19, wherein the transmission configuration of the first set of control resources and the second set of control resources indicates that the quasi co-located type indicated in the state is quasi co-located type D and that the indicated source reference signal types are not identical.
The method of claim 19, wherein the transmission configuration of the first set of control resources and the second set of control resources indicates that the indicated source reference signal types in the state are different and that the indicated directions of the received beams are the same or different.
The method of claim 19, wherein the transmission configuration of the first set of control resources and the second set of control resources indicates that the indicated source reference signal type in the state is the same and that the indicated spatial domain reception parameters of the reference signals are different.
The method of claim 22, wherein if the PDCCH transmission is received by a first panel and a second panel, a first quasi co-sited type D configuration is configured on the first panel, a second quasi co-sited type D configuration is configured on the second panel, and the first quasi co-sited type D configuration is different from the second quasi co-sited type D configuration.
A user equipment for use in a multi-TRP system, comprising: a processor, a memory and a communication circuit, the memory storing instructions that, when executed by the processor, cause the processor to perform the method of any of claims 1-12 through the communication circuit.
A base station for use in a multi-TRP system, comprising: a processor, a memory and a communication circuit, the memory storing instructions that, when executed by the processor, cause the processor to perform the method of any of claims 13-23 through the communication circuit.
A non-transitory computer storage medium storing instructions which, when executed, implement a method of performing any of claims 1-12.
A non-transitory computer storage medium storing instructions which, when executed, implement a method of performing any of claims 13-23.