CN114762380A

CN114762380A - Method, device and storage medium for determining control channel resources

Info

Publication number: CN114762380A
Application number: CN202080084237.6A
Authority: CN
Inventors: 贺传峰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2022-07-15
Also published as: WO2021168824A1

Abstract

The embodiment of the application provides a method, equipment and a storage medium for determining control channel resources, which are used for improving the receiving performance of a PDCCH and reducing the transmission delay of an SIB 1. The method comprises the following steps: the UE receives a plurality of SSBs, wherein each SSB in the plurality of SSBs comprises CORESET information and SSB index information, and for each SSB, the UE determines CORESET information corresponding to the SSB according to the CORESET information and the SSB index information contained in the SSB. The CORESET information corresponding to the SSBs containing different index information determined by the UE is not identical, and the UE detects the PDCCH according to the CORESET information corresponding to the SSBs. Because the information of the CORESET corresponding to the SSBs with different indexes is not completely the same, the UE can receive the PDCCHs corresponding to the SSBs with different indexes on the not-completely-same CORESET in the same time unit, thereby improving the receiving performance of the PDCCHs, reducing the delay of the UE for receiving the SIB1 and enabling the system design to be more flexible.

Description

Method, device and storage medium for determining control channel resources

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method, a device, and a storage medium for determining control channel resources.

Background

A New Radio (NR) system mainly supports Enhanced Mobile bandwidth (eMBB) services, and meets the requirements of high speed, high spectrum efficiency, and large bandwidth. In practical applications, besides the eMBB service, there are also a variety of other service types, such as data transmission services of industrial internet of things sensors, monitoring cameras, and wearable devices, and a terminal supporting these services has characteristics of large connection number, low power consumption, and low cost, and compared with a terminal supporting the eMBB service, hardware capabilities are reduced, such as a reduced supported bandwidth, a reduced processing speed, and a reduced number of antennas. Therefore, it is necessary to optimize the NR system for the low-power terminal supporting the other traffic types described above, and the corresponding system is called an NR-light system.

In the current NR system, a terminal device receives a series of SSBs sent by a network device, blindly detects a PDCCH according to the CORESET information of a type0PDCCH indicated in the SSBs and according to the CORESET information, thereby obtaining DCI information, determining a PDSCH carrying an SIB1, and receiving an SIB 1.

For a terminal of an NR-light system, it is necessary to receive type0 PDCCHs corresponding to SSBs with different indices from a CORESET with a limited bandwidth, which occupies a large number of downlink subframes, and causes a transmission delay of an SIB1, thereby affecting system information transmission efficiency.

Disclosure of Invention

Embodiments of the present application provide a method, an apparatus, and a storage medium for determining a control channel resource, so as to improve the receiving performance of a PDCCH and avoid SIB1 transmission delay.

In a first aspect, an embodiment of the present application provides a method for determining control channel resources, including:

receiving a plurality of Synchronization Signal Blocks (SSBs), each SSB of the plurality of SSBs comprising control resource set (CORESET) information and SSB index information;

according to the CORESET information contained in the SSB and the SSB index information, determining CORESET information corresponding to the index of the SSB; the CORESET information corresponding to a plurality of SSBs containing different SSB index information is not completely the same;

and detecting a Physical Downlink Control Channel (PDCCH) according to the CORESET information corresponding to the SSBs.

In a second aspect, an embodiment of the present application provides a method for determining control channel resources, including:

receiving a first SSB, wherein the first SSB comprises first CORESET information and index information of the first SSB;

determining second CORESET information corresponding to the first SSB according to the first CORESET information and the index information of the first SSB;

and detecting the PDCCH according to the second CORESET information corresponding to the first SSB.

In a third aspect, an embodiment of the present application provides a method for determining control channel resources, including:

Determining CORESET information corresponding to a plurality of SSBs, wherein the CORESET information corresponding to each SSB in the plurality of SSBs is determined according to the CORESET information contained in the SSB and the SSB index information; the CORESET information corresponding to a plurality of SSBs containing different SSB index information is not completely the same;

and sending a Physical Downlink Control Channel (PDCCH) according to the CORESET information corresponding to the SSBs.

In a fourth aspect, an embodiment of the present application provides a method for determining control channel resources, including:

determining second CORESET information corresponding to the first SSB according to the first CORESET information contained in the first SSB and the first SSB index information;

and sending the PDCCH according to the second CORESET information.

In a fifth aspect, an embodiment of the present application provides a terminal device, including:

the device comprises a receiving module, a processing module and a processing module, wherein the receiving module is used for receiving a plurality of synchronous signal blocks SSBs, and each SSB in the plurality of SSBs comprises control resource set CORESET information and SSB index information;

the processing module is used for determining CORESET information corresponding to the index of the SSB according to the CORESET information contained in the SSB and the SSB index information; the CORESET information corresponding to a plurality of SSBs containing different SSB index information is not completely the same;

In a sixth aspect, an embodiment of the present application provides a terminal device, including:

the receiving module is used for receiving a first SSB, wherein the first SSB comprises first CORESET information and index information of the first SSB;

the processing module is used for determining second CORESET information corresponding to the first SSB according to the first CORESET information and the index information of the first SSB;

In a seventh aspect, an embodiment of the present application provides a network device, including:

the processing module is used for determining CORESET information corresponding to a plurality of SSBs, wherein the CORESET information corresponding to each SSB in the plurality of SSBs is determined according to the CORESET information contained in the SSBs and the SSB index information; the CORESET information corresponding to a plurality of SSBs containing different SSB index information is not completely the same;

and the sending module is used for sending the physical downlink control channel PDCCH according to the CORESET information corresponding to the SSBs.

In an eighth aspect, an embodiment of the present application provides a network device, including:

the processing module is used for determining second CORESET information corresponding to the first SSB according to first CORESET information contained in the first SSB and the first SSB index information;

And the sending module is used for sending the PDCCH according to the second CORESET information.

In a ninth aspect, an embodiment of the present application provides a terminal device, including:

a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored by the memory, causing the processor to perform a method according to the first or second aspect.

Alternatively, the processor may be a chip.

In a tenth aspect, an embodiment of the present application provides a network device, including:

a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executes the computer-executable instructions stored by the memory, causing the processor to perform the method of the third or fourth aspect.

Alternatively, the processor may be a chip.

In an eleventh aspect, embodiments of the present application provide a computer-readable storage medium having stored therein computer-executable instructions for implementing the method according to the first or second aspect when the computer-executable instructions are executed by a processor.

In a twelfth aspect, embodiments of the present application provide a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the computer-readable storage medium is configured to implement the method according to the third aspect or the fourth aspect.

In a thirteenth aspect, an embodiment of the present application provides a communication system, including:

the terminal equipment is in communication connection with the network equipment;

the terminal device is the terminal device according to the fifth aspect, and the network device is the network device according to the seventh aspect; or, the terminal device is the terminal device of the sixth aspect, and the network device is the network device of the eighth aspect.

Drawings

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2 is a flowchart of a method for determining a control information resource according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of CORESET information corresponding to SSBs with different indexes provided in an embodiment of the present application;

fig. 4 is a schematic diagram of CORESET information corresponding to SSBs with different indexes provided in an embodiment of the present application;

fig. 5 is a flowchart of a method for determining a control information resource according to an embodiment of the present application;

fig. 6 is a flowchart of a method for determining a control information resource according to an embodiment of the present application;

fig. 7 is a schematic diagram of CORESET information corresponding to an SSB in different radio frames according to an embodiment of the present disclosure;

fig. 8 is a flowchart of a method for determining a control information resource according to an embodiment of the present disclosure;

fig. 9 is a flowchart of a method for determining control channel resources according to an embodiment of the present disclosure;

fig. 10 is a flowchart of a method for determining control channel resources according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

Fig. 13 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 15 is a schematic hardware structure diagram of a terminal device according to an embodiment of the present application;

fig. 16 is a schematic hardware structure diagram of a terminal device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The terms "first," "second," and the like in the description and in the claims, and in the foregoing drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than described or illustrated herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In NR systems, a network device may transmit a series of SSBs (or referred to as a set of SSBs) in different beam directions, such as SSBs 1, SSBs 2, SSBs 3, and so on. The CORESET information of type0 PDCCH generally indicated by SSBs (or SSBs called different indexes) in different beam directions is the same, and the CORESET information is used to indicate resource blocks RB in the frequency domain and symbols in the time domain of type0 PDCCH. The SSBs in different beam directions are usually transmitted in time division, and accordingly, the monitoring occasions of type0 PDCCHs corresponding to the SSBs in different beam directions may not overlap, may not completely overlap, or may completely overlap.

The 5G NR system is designed mainly to support the eMBB service, and its main technology is to meet the requirements of high rate, high spectrum efficiency, and large bandwidth. Indeed, in addition to the eMBB, there are a number of different traffic types, such as sensor networks, video surveillance, wearable, etc., which have different requirements than the eMBB traffic in terms of rate, bandwidth, power consumption, cost, etc. The capabilities of terminals supporting these services are reduced compared to terminals supporting eMBB, such as reduced supported bandwidth, relaxed processing time, reduced number of antennas, etc. To better support other traffic types than eMBB traffic, it is necessary to optimize the NR system, called NR-light system, for these traffic and the corresponding low-power terminals.

In the NR-light system, the bandwidth of CORESET of type0PDCCH is relatively limited, and in order to guarantee the receiving performance of type0PDCCH, repeated transmission in the time domain is generally adopted, that is, type0PDCCH is transmitted in multiple time units. Then, the monitoring occasions of type0PDCCH corresponding to each indexed SSB may need to contain more time units. In order to carry type0PDCCH corresponding to each index SSB in bandwidth-limited CORESET, it is necessary that type0PDCCH monitoring occasions corresponding to SSBs of different indexes do not overlap as much as possible. To meet the above requirements, a large number of downlink subframes will be occupied, resulting in a delay in receiving SIB 1.

Based on the existing problems, embodiments of the present application provide a method for determining a control channel resource, where the CORESET information of a common control channel PDCCH is determined, and the CORESET information corresponding to SSBs with different indexes is determined by using MIB information carried by a PBCH of an SSB and combining with predefined rules or combining with other information (such as index information, time element information, and the like), and the CORESET information corresponding to at least two SSBs in the SSBs with different indexes that are determined is not completely the same, so that a UE detects type0PDCCH on different CORESETs on the same time element, thereby reducing delay in receiving SIB1, and making system design more flexible. Meanwhile, for any SSB, the CORESET of the type0PDCCH changes along with the change of time, so that the frequency diversity of the CORESET is increased, and the receiving performance of the type0PDCCH is improved.

The technical solution of the embodiment of the present application is mainly applied to a communication system based on an NR technology, for example, a fifth generation mobile communication technology (5th generation mobile networks, 5G for short) communication system, an NR-light system, and the like. It can also be applied to other communication systems, as long as the other entity needs to interpret the advanced data transmission in some way when the existence entity needs to indicate communication with the other entity in the communication system, for example, it can be applied to scheduling multiple data blocks between a network device and a terminal device, or two terminal devices, one of which takes on the function of accessing the network, etc. Specifically, the communication system may be, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE advanced (Long Term Evolution-advanced) System, an LTE Duplex (Freq terminal equipment Division Duplex, FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), and the like.

The terminal device referred to in the technical solution of the embodiment of the present application may be a wireless terminal or a wired terminal. A wireless terminal may refer to a device that provides voice and/or other traffic data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. A wireless terminal, which may be a mobile terminal such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and may exchange language and/or data with the RAN. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs) are used. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

The network device referred to in the technical solution of the embodiment of the present application is a device deployed in a radio Access network for providing a wireless communication function, and may be a Base Station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), or a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or an evolved Node B (eNB, eNodeB) in LTE, or a relay Station or an Access point, or a transmission point (TRP) in a new air interface NR network, or a next generation Node B (gne, NB), or a Base Station in another future network System, and the like, which are not limited herein.

In the NR system in the technical solution of the embodiment of the present application, a Synchronization Signal (SS) Block and a Physical Broadcast Channel (PBCH) Block appear in the form of SS/PBCH resource blocks according to a certain time-frequency domain resource relationship, and are referred to as a Synchronization Signal Block (SSB) for short. The SSB may include at least one of a PBCH, Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS). After receiving the SSB, the terminal device can acquire time synchronization with the network device and acquire basic configuration information of the network, and in addition, the terminal device needs to obtain some necessary System information to complete cell residence and initial access, and the necessary System information is called rmsi (remaining Minimum System information) in the NR. The RMSI may be considered as an SIB1 message in LTE, and is mainly sent through a Physical Downlink Shared Channel (PDSCH), and the PDSCH Channel needs Downlink Control Information (DCI) of a Physical Downlink Control Channel (PDCCH) for scheduling. The channel for the SSB to carry information is a PBCH, and the PBCH is used to carry a Main Information Block (MIB). The terminal equipment needs to obtain the PDCCH channel information of the scheduled RMSI from the PDCCH-ConfigSIB1 field of the MIB, and the terminal equipment performs blind detection on the PDCCH to obtain the RMSI, that is, the SIB1 message.

The SSB and the PDCCH in the embodiment of the present application have a Quasi Co-location (QCL) relationship, which may indicate that the SSB and the PDCCH have the same beam, or have the same following partial or all parameters: an angle of incidence (AOA), a main (dominent) AOA, an average angle of incidence, a power angle spectrum of incidence (PAS) of AOA), an angle of departure (AoD), a main angle of departure, an average angle of departure, a power angle spectrum of departure, terminal transmit beamforming, terminal receive beamforming, spatial channel correlation, base station transmit beamforming, base station receive beamforming, average channel gain, average channel delay, delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift, and the like. When the SSB and the PDCCH have a QCL relationship, they may be referred to as having an association relationship, and the association may be referred to as mapping, correlation, and allocation. The association relationship may be configured by the network device, may also be specified by a standard, or may be predetermined by the network device and the terminal device.

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application. As shown in fig. 1, the system includes a network device, which may be a Base Station (BS), and a plurality of terminal devices, such as UE 1-UE 6 shown in fig. 1, communicatively connected to the network device. The base station may be a multi-beam base station or a single-beam base station. The terminal device may be a fixed terminal device or a mobile terminal device. The base station and the UEs 1 to 6 form a communication system, and in the communication system, the base station may transmit a series of SSBs in a beam scanning manner, so that one or more UEs of the UEs 1 to 6 determine, according to the received at least one SSB, CORESET information corresponding to the at least one SSB, perform PDCCH detection, and receive the SIB 1.

The technical solution of the present application will be described in detail with reference to the accompanying drawings in specific embodiments. These several specific embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 2 is a flowchart of a method for determining a control information resource according to an embodiment of the present disclosure. As shown in fig. 2, the method provided in this embodiment can be applied to any UE shown in fig. 1, and the method includes the following steps:

step 101, receiving a plurality of SSBs, each SSB of the plurality of SSBs including CORESET information and SSB index information.

In the embodiment of the present application, each SSB in the plurality of SSBs includes CORESET information, and the CORESET information included in different SSBs may be the same or different.

Illustratively, the plurality of SSBs includes SSB0, SSB1, and SSB2, SSB0 includes CORESET information of CORESET #0-0, SSB1 includes CORESET information of CORESET #0-1, and SSB2 includes CORESET information of CORESET # 0-2. Wherein, CORESET #0-0, CORESET #0-1 and CORESET #0-2 can be completely identical CORESET or not completely identical CORESET. The CORESET of the 3 SSBs is not identical, which means that the CORESET of at least 2 SSBs of the 3 SSBs is not identical, and which means that the CORESET of any 2 SSBs of the 3 SSBs is not identical.

For each SSB, the CORESET information contained in the SSB may be carried in MIB information of PBCH of the SSB. The CORESET information included in the MIB information may be CORESET information corresponding to the SSB (i.e., the MIB information indicates actual CORESET information of the SSB), or may be reference CORESET information of the SSB (i.e., CORESET information that is not actual CORESET information of the SSB). The subsequent processing corresponding to the CORESET information in different situations is different, which can be specifically referred to as step 102 below.

Specifically, in the PDCCH-ConfigSIB1 field of MIB information carried by PBCH of SSB, CORESET information of type0PDCCH is indicated. Wherein, the CORESET information includes resource blocks RB of type0PDCCH in frequency domain and symbols in time domain. In practical applications, the Number of RBs (Number of RBs), the Number of Symbols (Number of Symbols) and the RB offset value (RB offset) compared to the SSB of the CORESET corresponding to any index (index) in table 1 is indicated in the field of the pdcch-ConfigSIB1, so as to obtain the CORESET information.

TABLE 1

Table 1 shows a case where the subcarrier spacing is 15kHz, the bandwidth of CORESET may be configured to 24, 48, and 96 RBs, the number of CORESET symbols may be 1, 2, and 3, and the number of RBs whose frequency domain position is shifted from that of SSB may be 0, 2, 4, 12, 16, and 38. The multiplexing scheme of SSB and CORESET in table 1 is scheme 1, that is, the PDCCH and the SSB use time division multiplexing. Of course, the multiplexing mode of the SSB and the CORESET may also be a mode 2 (frequency division and time division multiplexing is used for PDCCH and SSB) or a mode 3 (frequency division multiplexing is used for PDCCH and SSB). Table 1 is only an example, and the corresponding table contents are different for different subcarrier intervals or different multiplexing modes.

Specifically, in the PDCCH-ConfigSIB1 field of MIB information carried by the PBCH of the SSB, search space search information of type0PDCCH is also indicated, which is used to determine the listening timing (i.e., the starting OFDM symbol number) of type0 PDCCH.

the monitoring occasion of type0PDCCH is determined by the following way:

for the multiplexing mode of SSB and CORESET as mode 1, the UE monitors type0PDCCH common search space in two consecutive time slots. The number of the starting time slot of two consecutive time slots is n₀Each indexed SSB corresponds to a listening window, the number n of the starting slot of which is₀Can be determined by the formula one:

where i is the index number of the SSB, μ is a system parameter related to the subcarrier spacing af,

m and O are both indicated by Searchspace information in PBCH for the number of slots in one radio frame. The value of O includes {0,2,5,7} in the frequency domain (frequency range 1) of 6GHz or less, and {0,2.5,5,7.5} in the frequency domain (frequency range 2) of 6GHz or more. The value of M includes {1/2,1,2 }.

Number n in determining the starting time slot₀Then, it is further required to determine the radio frame number SFN where the listening window is located_CIt can be determined by the formula two or three:

i.e. if

The calculated number of the time slots is less than the number of the time slots contained in a wireless frame, and the SFN is_CIs an even number of radio frames, if

The calculated number of the time slots is more than or equal to the number of the time slots contained in a wireless frame, and the SFN is_COdd radio frames.

In the embodiment of the present application, the PDCCH-ConfigSIB1 field of the MIB information carried by the PBCH of the SSB includes 8 bits, and the CORESET information and searchbace information of the type0 PDCCH each occupy 4 bits. The core set information carried by the PBCHs of the SSBs with different indexes may be the same or different, where the core set information carried by the PBCHs of the SSBs with different indexes is different, that is, the MIB information corresponding to the SSBs with different indexes is different.

And 102, determining the CORESET information corresponding to the index of the SSB according to the CORESET information and the SSB index information contained in the SSB.

Wherein, the CORESET information corresponding to a plurality of SSBs containing different SSB index information is not identical.

In the embodiment of the application, the UE receives a plurality of SSBs and determines, according to the plurality of SSBs, CORESET information corresponding to the plurality of SSBs. For ease of understanding, the first SSB is described below as an example, and the first SSB is any one of a plurality of SSBs. Wherein the first SSB includes the following two cases:

in the first case, the CORESET information included in the first SSB is CORESET information corresponding to the first SSB. It should be noted that the CORESET information included in the first SSB refers to the CORESET information indicated in the PBCH of the first SSB. In this case, the CORESET information included in the first SSB is the CORESET information corresponding to the first SSB. The SSBs of different indexes do not have identical CORESET information, i.e., the SSBs of different indexes do not have identical CORESET information.

As an example, the UE receives multiple SSBs, e.g., SSB0, SSB1, SSB2, SSB 3. The CORESET information contained in SSB0 is CORESET information corresponding to SSB0, the CORESET information contained in SSB1 is CORESET information corresponding to SSB1, the CORESET information contained in SSB2 is CORESET information corresponding to SSB2, and the CORESET information contained in SSB3 is CORESET information corresponding to SSB 3. The CORESET information contained in the SSBs of the 4 indexes is not identical, that is, the CORESET information corresponding to the indicated SSBs of the 4 indexes is not identical. Wherein, the CORESET information is not identical includes that the RBs are not identical (i.e., the RBs may be partially overlapped or not overlapped). Optionally, there are at least two SSBs of the 4 indexed SSBs that do not have identical CORESET information.

As another example, as shown in fig. 3, the SSBs of the 4 indexes include different CORESET information, that is, the indicated SSBs of the 4 indexes have different CORESET information corresponding thereto. The different CORESET information includes different RBs (RBs do not overlap), or different RBs and different symbol numbers. The RB is determined by the number of RBs and the RB offset value, and different RBs include different numbers of RBs and/or different RB offset values. The CORESET information corresponding to the SSB of 4 indices shown in fig. 3 are CORESET #0-0, CORESET #0-1, CORESET #0-2, and CORESET #0-3, respectively, and they have the same number of RBs and number of symbols, except that the RB offset values are different. Optionally, at least two SSBs in the SSBs with 4 indexes have different CORESET information, that is, the indicated SSBs with 4 indexes have different CORESET information corresponding to at least two SSBs.

The CORESET information corresponding to the multiple SSBs is determined by adopting the first condition, because the CORESET information contained by at least two SSBs in the SSBs with different indexes is not completely the same, that is, the CORESET information corresponding to at least two SSBs in the SSBs with different indexes is not completely the same, even if the monitoring occasions of type0 PDCCHs corresponding to the SSBs with different indexes are overlapped, because the CORESET information is not completely the same, the UE can receive the corresponding type0 PDCCH on the incompletely the same CORESET in the same time unit, thereby avoiding occupying a large number of downlink subframes, reducing the delay of receiving SIB1, and enabling the system design to be more flexible.

In the second case, the CORESET information included in the first SSB is not the CORESET information corresponding to the first SSB, and the CORESET information included in the first SSB can be regarded as a reference CORESET information.

Specifically, the CORESET information corresponding to the first SSB may be determined through one possible implementation manner as follows:

and determining the CORESET information corresponding to the first SSB according to the CORESET information and the index information contained in the first SSB. Wherein the index information is used to indicate the RB offset value of CORESET and the first SSB, the RB offset value may be determined by the following formula four.

RB offset i ═ RB offset 0+ i × NB equation four

In the formula, RB offset i is an RB offset value in the CORESET information corresponding to the first SSB, RB offset 0 is an RB offset value in the CORESET information included in the first SSB, i is an index number of the first SSB, and NB indicates a bandwidth of a narrow band.

Wherein, the value range of i is [0, L-1], and L is the maximum number of SSBs corresponding to the frequency band where the SSBs are located. The maximum number L of SSBs has the following relationship with the frequency band of the system: frequency band (frequency range) is less than or equal to 3GHz, and L is 4; the frequency band is more than 3GHz and less than 6GHz, and L is 8; the frequency band is greater than or equal to 6GHz and less than 52.6GHz, and L is 64.

The index number of the first SSB may be indicated by a Demodulation Reference Signal (DMRS) of the PBCH or information carried by the PBCH.

The CORESET information corresponding to the first SBB can be determined by formula four, and as can be seen from formula four, the CORESET information included in the first SSB is generally different from the CORESET information corresponding to the first SSB.

It should be noted that, the foregoing implementation is only an example, and the CORESET information corresponding to the first SSB may also be determined according to other preset rules, which is not limited in any way to this embodiment of the application.

In the second case, the CORESET information included in the SSBs of different indexes is the CORESET information referred to above, that is, the CORESET information included in the SSBs of different indexes is the same. The CORESET information corresponding to the SSBs of different indexes can be determined by the above implementation manner.

As an example, the UE receives multiple SSBs, e.g., SSB0, SSB1, SSB2, SSB 3. The SSB0, SSB1, SSB2 and SSB3 contain the same CORESET information. The UE determines CORESET information corresponding to SSB0 according to the CORESET information contained in SSB0 and the index number of SSB0, and the CORESET information corresponding to SSB0 is real CORESET information of SSB 0. Similarly, the UE determines CORESET information corresponding to SSB1 according to CORESET information contained in SSB1 and the index number of SSB 1; the UE determines CORESET information corresponding to SSB2 according to the CORESET information contained in SSB2 and the index number of SSB 2; the UE determines CORESET information corresponding to SSB3 according to the CORESET information contained in SSB3 and the index number of SSB 3. As described above, the CORESET corresponding to the SSBs of the 4 indices shifts to different narrow bands, and as shown in fig. 4, the CORESET information corresponding to the SSBs of the 4 indices has the same RB number and symbol number, but different RB offset values. The CORESET corresponding to the SSB of the 4 indices are CORESET #0-0, CORESET #0-1, CORESET #0-2, and CORESET #0-3, respectively, and are obtained by shifting different RB Offset values (RB Offset 0, RB Offset 1, RB Offset 2, and RB Offset 3) based on the same CORESET information (i.e., reference CORESET information). The 4 indexed SSBs have different CORESET information.

The CORESET information corresponding to the SSBs of the 4 indexes determined in this example is different, and is consistent with the result of the example of fig. 3 in the first case, and the difference between the two is that: in the first case, the information of the CORESET contained in the SSB with different indexes is different, and the indicated information of the CORESET corresponding to the SSB with different indexes is different; in the second case, the SSBs with different indexes have the same CORESET information, and it is necessary to determine that the CORESET information corresponding to the SSBs with different indexes is different through other information (e.g., index information).

The CORESET information corresponding to the multiple SSBs is determined by adopting the second condition, and because the determined CORESET information corresponding to the SSBs with different indexes is different, even if the monitoring occasions of the type0 PDCCHs corresponding to the SSBs with different indexes overlap, the UE can receive the corresponding type0 PDCCHs on different CORESETs in the same time unit because of the different CORESET information, thereby avoiding occupying a large number of downlink subframes, reducing the delay of receiving the SIB1, and making the system design more flexible. In addition, because PBCHs in SSBs with different indexes indicate the same CORESET information, the change of related technologies is small, and the PBCHs of the SSBs with different indexes can be conveniently merged.

Optionally, at least two time units of the CORESET information corresponding to the first SSB in different time units are not completely the same.

And 103, detecting the PDCCH according to the CORESET information corresponding to the SSBs.

According to the method for determining the control channel resource, the UE receives the multiple SSBs, wherein each SSB in the multiple SSBs comprises the CORESET information and the SSB index information, and for each SSB, the UE determines the CORESET information corresponding to the SSB according to the CORESET information and the SSB index information contained in the SSB. The CORESET information corresponding to the SSBs containing different index information determined by the UE is not completely the same, and the UE detects the PDCCH according to the CORESET information corresponding to the SSBs. Because the CORESET information corresponding to the SSBs with different indexes is not completely the same, the UE can receive the PDCCH corresponding to the SSBs with different indexes on the not completely same CORESET with the same time unit, thereby improving the receiving performance of the PDCCH, reducing the delay of the UE for receiving the SIB1 and enabling the system design to be more flexible.

Fig. 5 is a flowchart of a method for determining a control information resource according to an embodiment of the present application. As shown in fig. 5, the method provided in this embodiment may be applied to any UE shown in fig. 1, and the method includes the following steps:

step 201, receiving a first SSB, where the first SSB includes first CORESET information and index information of the first SSB.

In the related art, the first CORESET information included in the first SSB is usually CORESET information corresponding to the first SSB, that is, real CORESET information corresponding to the SSB is indicated. In this step, the first CORESET information included in the first SSB is a reference CORESET information, and the UE needs to determine the real CORESET information corresponding to the SSB by combining other information.

Step 202, determining second CORESET information corresponding to the first SSB according to the first CORESET information and the index information of the first SSB;

and 203, detecting the PDCCH according to the second CORESET information corresponding to the first SSB.

Step 202 in the embodiment of the present application is the same as the second case of step 102 in the foregoing embodiment, and for the principle and technical effect, reference may be made to the foregoing embodiment, which is not described herein again.

In the related art, the CORESET information corresponding to the first SSB is usually fixed and unchanged unless the network device reconfigures the CORESET information corresponding to the new first SSB. In order to further improve the receiving performance of the type0 PDCCH, the following embodiments determine how the low-capability UE implements narrowband frequency hopping of the CORESET of the type0 PDCCH from the perspective of any one SSB of multiple SSBs, and by the narrowband frequency hopping, not only can the CORESET information corresponding to the SSBs be not completely the same in different time units, but also the CORESET information corresponding to the SSBs with different indexes in a certain time unit can be not completely the same.

The following describes a method for determining control channel resources according to an embodiment of the present application in detail with reference to fig. 6.

Fig. 6 is a flowchart of a method for determining a control information resource according to an embodiment of the present application. As shown in fig. 6, the method provided in this embodiment may be applied to any UE shown in fig. 1, and the method includes the following steps:

And step 301, determining second CORESET information corresponding to the first SSB.

In the embodiment of the present application, the first CORESET information included in the first SSB may be second CORESET information corresponding to the first SSB. Correspondingly, the UE may determine, according to the first CORESET information included in the first SSB, second CORESET information corresponding to the first SSB.

Alternatively, the first SSB includes the first CORESET information as a reference CORESET information. Correspondingly, the UE may determine, according to the first CORESET information included in the first SSB and the index information of the first SSB, the second CORESET information corresponding to the first SSB.

Step 302, determining a plurality of third CORESET information corresponding to the first SSB according to the second CORESET information and the time unit information.

The plurality of third CORESET information correspond to different time units respectively, and the plurality of third CORESET information are not identical.

The plurality of third CORESET information are not identical, and at least two of the plurality of third CORESET information are not identical, and any two of the plurality of third CORESET information are not identical.

As an example, the time cell information includes a number of the time cell, such as a radio frame number, a subframe number, a slot number, etc., which may be one or more.

As another example, the time cell information may be one or more monitoring occasions where the UE monitors the search space of type0 PDCCH. For example, the CORESET corresponding to the first SSB belongs to the CORESET of the search space in which the UE monitors the type0 PDCCH, the search space includes different monitoring occasions, and the monitoring occasions belong to one of the time cell information.

The time unit in the embodiment of the present application may be a radio frame, a subframe, a timeslot, and the like, and the embodiment of the present application is not limited at all.

As an example, step 302 includes:

and determining a plurality of third CORESET information corresponding to the first SSB by the following formula five.

RB offset j ═ RB offset 0+ j × NB equation five

In the formula, RB offset j is an RB offset value in the third CORESET information corresponding to the first SSB, RB offset 0 is an RB offset value in the second CORESET information corresponding to the first SSB, j is the number of the first time unit, and NB represents the bandwidth of the narrowband band.

And determining a plurality of third CORESET information corresponding to the first SSB according to a formula five, wherein the plurality of third CORESET information corresponding to the first SSB are not identical.

It should be noted that, the foregoing implementation is only used as an example, and the third CORESET information corresponding to the first SSB may also be determined according to other preset rules, which does not limit the embodiment of the present application at all.

In summary, the UE may determine, according to the first CORESET information and the time unit information included in the first SSB, a plurality of third CORESET information corresponding to the first SSB, where the first CORESET information included in the first SSB is CORESET information corresponding to the first SSB (i.e., the second CORESET information). The UE may further determine, according to the first CORESET information, the index information of the first SSB, and the time unit information included in the first SSB, a plurality of third coreest information corresponding to the first SSB. The third CORESET messages respectively correspond to different time units, and the third CORESET messages are not identical.

As an example, the UE receives the SSB0, the first CORESET information included in the SSB0 is CORESET information corresponding to the SSB0, and the UE determines a plurality of second CORESET information, such as the second CORESET information (CORESET #0-0 in fig. 7) of the nth radio frame and the second CORESET information (CORESET #0-0 in fig. 7) of the n + i radio frame shown in fig. 7, according to the first CORESET information and the radio frame SFN information included in the SSB 0. Wherein n and i are both positive integers greater than or equal to 1. As can be seen from fig. 7, the second CORESET information of the nth radio frame and the n + i radio frame are different, and the difference of the second CORESET information here means that the number and the symbol number of RBs are the same, but the RB offset value is different.

And step 303, detecting the PDCCH according to the plurality of pieces of second CORESET information.

In the method for determining control channel resources provided in the embodiment of the present application, the UE receives a first SSB, where the first SSB includes first CORESET information, and the UE determines, according to the first CORESET information, second CORESET information corresponding to the first SSB, or the UE determines, according to the first CORESET information and index information of the first SSB, the second CORESET information corresponding to the first SSB. And then, the UE determines a plurality of pieces of third CORESET information corresponding to the first SBB according to the determined second CORESET information and the time unit information, wherein the plurality of pieces of third CORESET information correspond to different time units, and the plurality of determined third CORESET information are not identical. And the UE detects the PDCCH according to the third CORESET information. Because the CORESET information corresponding to the SSB is not fixed any more, the CORESET information corresponding to the SSB changes along with the change of time, the frequency diversity of detecting the type0PDCCH is increased, and the receiving performance of the type0PDCCH is improved. In addition, from the angle of the SSBs with the different indexes, the CORESET corresponding to the SSBs with the different indexes in the same time cell is not completely the same, and the UE detects the type0PDCCH on the different CORESETs in the same time cell, so that the delay of receiving the SIB1 by the UE is reduced, and the system design is more flexible.

Fig. 8 is a flowchart of a method for determining a control information resource according to an embodiment of the present application. As shown in fig. 8, the method provided by this embodiment can be applied to the base station shown in fig. 1, and the method includes the following steps:

step 401, determining CORESET information corresponding to a plurality of SSBs.

The CORESET information corresponding to each SSB in the plurality of SSBs is determined according to the CORESET information contained in the SSB, or according to the CORESET information and the SSB index information contained in the SSB. The CORESET information corresponding to a plurality of SSBs containing different index information is not identical.

In the embodiment of the present application, the base station transmits a series of SSBs, such as SSB0, SSB1, SSB2, and SSB3, to the UE in a beam scanning manner. Accordingly, the UE may receive at least one SSB in a series of SSBs sent by the base station, i.e., the UE may receive one SSB, or the UE may receive multiple SSBs (two or more).

For any SSB in a series of SSBs sent by a base station, for example, a first SSB, the CORESET information contained in the first SSB includes the following two cases:

in the first case, the CORESET information included in the first SSB is CORESET information corresponding to the first SSB, that is, the CORESET information included in the first SSB directly indicates the CORESET information corresponding to the first SSB. In this case, the base station determines the CORESET information corresponding to the first SSB directly from the CORESET information included in the first SSB.

In the second case, the CORESET information included in the first SSB is not the CORESET information corresponding to the first SSB, and the CORESET information included in the first SSB can be regarded as a reference CORESET information. In this case, the CORESET information included in the SSBs with different indexes is the same, and the base station may determine the CORESET information corresponding to each SSB according to the CORESET information included in each SSB and the index information of the SSB. For example, the base station may determine the CORESET information corresponding to the first SSB according to the CORESET information included in the first SSB and the index information of the first SSB.

And step 402, sending a physical downlink control channel PDCCH according to CORESET information corresponding to a plurality of SSBs.

Specifically, the base station sends the PDCCH according to the CORESET information corresponding to the SSBs determined in step 401. The determined CORESET information corresponding to the SSBs with different indexes is not identical. The CORESET information corresponding to a plurality of SSBs is not exactly the same, which may be understood as the CORESET information corresponding to at least two SSBs of the plurality of SSBs is not exactly the same, and may be understood as the CORESET information corresponding to any two SSBs of the plurality of SSBs is not exactly the same.

Wherein, the CORESET information corresponding to the at least two SSBs is not completely the same, including that the RBs corresponding to the at least two SSBs are not completely the same.

Some terms in the embodiments of the present application are the same as those in the method embodiments of the UE side, and reference may be made to the above embodiments specifically, which are not described herein again.

In the method for determining the control channel resource provided in the embodiment of the present application, the base station determines, through the CORESET information included in the SSB, the CORESET information corresponding to the SSB, or determines, through the CORESET information included in the SSB and the SSB index information, the CORESET information corresponding to the SSB. And the CORESET information corresponding to the plurality of SSBs containing different index information determined by the base station is not completely the same. And the base station sends the PDCCH according to the CORESET information corresponding to the plurality of SSBs. The method reduces the transmission delay of the SIB1, and makes the system design more flexible.

On the basis of the foregoing embodiment, optionally, the CORESET information corresponding to any one SSB of the multiple SSBs is not completely the same in at least two time units in different time units.

Fig. 9 is a flowchart of a method for determining control channel resources according to an embodiment of the present application. As shown in fig. 9, the method provided in this embodiment can be applied to the base station shown in fig. 1, and the method includes the following steps:

step 501, determining second CORESET information corresponding to the first SSB according to the first CORESET information and the index information of the first SSB included in the first SSB.

In this embodiment of the present application, the first CORESET information included in the first SSB is reference CORESET information, and the base station needs to determine, according to the reference CORESET information and the index information of the first SSB, the second CORESET information corresponding to the first SSB. The second CORESET information is real CORESET information corresponding to the first SSB. The specific implementation manner of this step may refer to the second case of step 102 in the embodiment shown in fig. 2, and is not described herein again.

And step 502, sending the PDCCH according to the second CORESET information.

According to the determination method in the above embodiment, the base station determines the second CORESET information corresponding to the first SSB, where the second CORESET information corresponding to the first SSB may change with time, that is, the CORESET information corresponding to the first SSB may not be completely the same in different time units.

How the base station determines the CORESET information corresponding to a SSB in different time units is described in detail below with reference to fig. 10.

Fig. 10 is a flowchart of a method for determining control channel resources according to an embodiment of the present application. As shown in fig. 10, the method provided in this embodiment can be applied to the base station shown in fig. 1, and the method includes the following steps:

And 601, determining second CORESET information corresponding to the first SSB.

In a possible implementation manner, the base station determines the second CORESET information corresponding to the first SSB according to the first CORESET information included in the first SSB.

In another possible implementation manner, the base station determines second CORESET information corresponding to the first SSB according to the first CORESET information included in the first SSB.

And step 602, determining a plurality of third CORESET information corresponding to the first SSB according to the second CORESET information and the time unit information. The plurality of third CORESET information respectively correspond to different time units, and the plurality of third CORESET information are not identical.

The specific implementation of this step is the same as step 302 in the embodiment shown in fig. 6, which may specifically refer to the above embodiments, and is not described herein again.

Step 603, sending the PDCCH according to the plurality of third CORESET messages.

In the method for determining control channel resources provided in this embodiment of the present application, a base station first determines, according to first CORESET information included in a first SSB, or according to first CORESET information included in the first SSB and index information of the first SSB, second CORESET information corresponding to the first SSB. And then, the base station determines a plurality of pieces of third CORESET information corresponding to the first SBB according to the determined second CORESET information and the time unit information, wherein the determined plurality of pieces of third CORESET information are not identical. And the base station transmits the PDCCH according to the plurality of third CORESET messages. Since the CORESET information corresponding to the SSB is no longer fixed, the CORESET information corresponding to the SSB changes with time, increasing the frequency diversity of transmitting type0 PDCCH. In addition, from the angle of the plurality of SSBs with different indexes, the CORESET corresponding to the SSBs with different indexes in the same time cell is not completely the same, and the base station transmits the type0 PDCCH on different CORESETs in the same time cell, so that the delay of the base station in transmitting the SIB1 is reduced, and the system design is more flexible.

The method for determining control channel resources provided in the embodiment of the present application is described in detail above, and the terminal device and the network device provided in the embodiment of the present application are described below.

Fig. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in fig. 11, a terminal device 700 provided in this embodiment of the present application includes:

a receiving module 701, configured to receive multiple synchronization signal blocks SSBs, where each SSB in the multiple SSBs includes CORESET information and SSB index information;

a processing module 702, configured to determine, according to the CORESET information included in the SSB and the SSB index information, CORESET information corresponding to an index of the SSB; the CORESET information corresponding to a plurality of SSBs containing different SSB index information is not completely the same;

Optionally, the CORESET information included in a first SSB of the multiple SSBs is CORESET information corresponding to the first SSB; the plurality of SSBs do not contain identical CORESET information.

Optionally, the processing module 702 is specifically configured to:

determining CORESET information corresponding to a first SSB in the plurality of SSBs according to CORESET information contained in the first SSB and index information of the first SSB; the plurality of SSBs contain the same CORESET information.

Optionally, the CORESET information corresponding to the multiple SSBs is not completely the same, including:

and the resource blocks RB corresponding to the plurality of SSBs are not completely the same.

The terminal device provided in the embodiment of the present application is configured to execute the technical solution of the terminal device in the embodiment of the method shown in fig. 2, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in fig. 12, a terminal device 800 provided in the embodiment of the present application includes:

a receiving module 801, configured to receive a first SSB, where the first SSB includes first CORESET information and index information of the first SSB;

a processing module 802, configured to determine, according to the first CORESET information and the index information of the first SSB, second CORESET information corresponding to the first SSB;

Optionally, the processing module 802 is further configured to:

determining a plurality of third CORESET information corresponding to the first SSB according to the second CORESET information and the time unit information corresponding to the first SSB; the plurality of third CORESET information correspond to different time units respectively, and the plurality of third CORESET information are not completely the same;

And detecting the PDCCH according to the plurality of pieces of third CORESET information.

The terminal device provided in the embodiment of the present application is configured to implement the technical solutions of the terminal device in the method embodiments shown in fig. 5 and fig. 6, and the implementation principles and technical effects are similar, which are not described herein again.

Fig. 13 is a schematic structural diagram of a network device according to an embodiment of the present application. As shown in fig. 13, a network device 900 provided in the embodiment of the present application includes:

a processing module 901, configured to determine CORESET information corresponding to multiple SSBs, where the CORESET information corresponding to each SSB in the multiple SSBs is determined according to the CORESET information and the SSB index information included in the SSB; the CORESET information corresponding to a plurality of SSBs containing different SSB index information is not completely the same;

a sending module 902, configured to send a physical downlink control channel PDCCH according to the CORESET information corresponding to the multiple SSBs.

Optionally, the CORESET information included in a first SSB of the plurality of SSBs is CORESET information corresponding to the first SSB; the plurality of SSBs do not contain identical CORESET information.

Optionally, the processing module 901 is specifically configured to:

determining CORESET information corresponding to a first SSB in the plurality of SSBs according to CORESET information contained in the first SSB and index information of the first SSB; the plurality of SSBs contain identical CORESET information.

Optionally, the CORESET information corresponding to the multiple SSBs is not completely the same, and includes:

The network device provided in the embodiment of the present application is configured to execute the technical solution of the network device in the embodiment of the method shown in fig. 8, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 14 is a schematic structural diagram of a network device according to an embodiment of the present application. As shown in fig. 14, a network device 1000 provided in the embodiment of the present application includes:

the processing module 1001 is configured to determine, according to first CORESET information and the first SSB index information included in the first SSB, second CORESET information corresponding to the first SSB;

a sending module 1002, configured to send the PDCCH according to the second core set information.

Optionally, the processing module 1001 is further configured to:

A sending module 1002, further configured to send the PDCCH according to the third core set information.

The network device provided in the embodiment of the present application is configured to implement the technical solutions of the network devices in the method embodiments shown in fig. 9 and fig. 10, and the implementation principles and technical effects are similar, which are not described herein again.

It should be noted that, the division of each module of the terminal device or the network device is only a logical division, and all or part of the division may be integrated into one physical entity or may be physically separated in actual implementation. And these modules can all be implemented in the form of software invoked by a processing element; or can be implemented in the form of hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the processing module may be a separate processing element, or may be integrated into a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and a processing element of the apparatus calls and executes the functions of the above determination module. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when some of the above modules are implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can call program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Fig. 15 is a schematic hardware structure diagram of a terminal device according to an embodiment of the present application. As shown in fig. 15, the terminal device 1100 may include:

transceiver 1101, processor 1102, memory 1103;

the memory 1103 stores computer-executable instructions;

the processor 1102 executes the computer execution instruction stored in the memory 1103, so that the processor 1102 executes the technical solution of the method for determining the control channel resource on the terminal device side in any one of the foregoing method embodiments.

Alternatively, the processor 1102 may be a chip.

Fig. 16 is a schematic hardware structure diagram of a network device according to an embodiment of the present application. As shown in fig. 16, the terminal apparatus 1200 may include:

a transceiver 1201, a processor 1202, a memory 1203;

the memory 1203 stores computer-executable instructions;

the processor 1202 executes the computer execution instruction stored in the memory 1203, so that the processor 1202 executes a technical solution of the method for determining the control channel resource on the network device side in any one of the foregoing method embodiments.

Alternatively, the processor 1202 may be a chip.

An embodiment of the present application further provides a computer-readable storage medium, where a computer-executable instruction is stored in the computer-readable storage medium, and when the computer-executable instruction is executed by a processor, the computer-executable instruction is used to implement a technical solution on a terminal device side in any one of the foregoing method embodiments.

The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, the computer-executable instructions are used to implement a technical solution at a network device side in any one of the foregoing method embodiments.

The embodiment of the present application further provides a program, and when the program is executed by a processor, the program is configured to execute the technical solution on the terminal device side in any one of the foregoing method embodiments.

The embodiment of the present application further provides a program, and when the program is executed by a processor, the program is configured to execute the technical solution on the network device side in any one of the foregoing method embodiments.

The embodiment of the present application further provides a computer program product, which includes a program instruction, where the program instruction is used to implement the technical solution on the terminal device side in any of the foregoing method embodiments.

The embodiment of the present application further provides a computer program product, which includes a program instruction, where the program instruction is used to implement the technical solution on the network device side in any of the foregoing method embodiments.

An embodiment of the present application further provides a chip, including: a processing module and a communication interface, wherein the processing module can execute the technical scheme of the terminal device side in the method embodiment.

Further, the chip further includes a storage module (e.g., a memory), where the storage module is configured to store instructions, and the processing module is configured to execute the instructions stored by the storage module, and execute the instructions stored in the storage module so that the processing module executes the technical solution on the terminal device side.

An embodiment of the present application further provides a chip, including: a processing module and a communication interface, wherein the processing module can execute the technical scheme of the network device side in the method embodiment.

Further, the chip further includes a storage module (e.g., a memory), where the storage module is configured to store an instruction, and the processing module is configured to execute the instruction stored in the storage module, and execute the instruction stored in the storage module so that the processing module executes the technical solution on the network device side.

In this application, "at least two" means two or more, and "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a alone, A and B together, and B alone, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship; in the formula, the character "/" indicates that the preceding and following related objects are in a relationship of "division". "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for convenience of description and distinction and are not intended to limit the scope of the embodiments of the present application.

It should be understood that, in the embodiment of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.

Claims

A method for determining control channel resources, comprising:

receiving a plurality of Synchronization Signal Blocks (SSBs), each SSB of the plurality of SSBs comprising control resource set (CORESET) information and SSB index information;

according to the CORESET information contained in the SSB and the SSB index information, determining CORESET information corresponding to the index of the SSB; the CORESET information corresponding to a plurality of SSBs containing different SSB index information is not completely the same;

and detecting a Physical Downlink Control Channel (PDCCH) according to the CORESET information corresponding to the SSBs.
The method of claim 1,

the CORESET information contained in a first SSB in the plurality of SSBs is the CORESET information corresponding to the first SSB; the plurality of SSBs contain core set information that is not identical.
The method according to claim 1, wherein the determining, according to the CORESET information and the SSB index information included in the SSB, CORESET information corresponding to an index of the SSB comprises:

according to CORESET information contained in a first SSB in the plurality of SSBs and index information of the first SSB, determining CORESET information corresponding to the first SSB; the plurality of SSBs contain the same CORESET information.
The method as claimed in claim 2 or 3, wherein the CORESET information corresponding to the first SSB is not identical in at least two of the different time units.
The method according to any of claims 1-4, wherein the CORESET information corresponding to the plurality of SSBs is not identical, comprising:

and the resource blocks RB corresponding to the plurality of SSBs are not completely the same.
A method for determining control channel resources, comprising:

receiving a first SSB, wherein the first SSB comprises first CORESET information and index information of the first SSB;

determining second CORESET information corresponding to the first SSB according to the first CORESET information and the index information of the first SSB;

and detecting the PDCCH according to the second CORESET information corresponding to the first SSB.
The method of claim 6, further comprising:

determining a plurality of third CORESET information corresponding to the first SSB according to the second CORESET information and the time unit information corresponding to the first SSB; the plurality of third CORESET information correspond to different time units respectively, and the plurality of third CORESET information are not completely the same;

and detecting the PDCCH according to the plurality of pieces of third CORESET information.
A method for determining control channel resources, comprising:

determining CORESET information corresponding to a plurality of SSBs, wherein the CORESET information corresponding to each SSB in the plurality of SSBs is determined according to the CORESET information contained in the SSB and the SSB index information; the CORESET information corresponding to a plurality of SSBs containing different SSB index information is not completely the same;

and sending a physical downlink control channel PDCCH according to the CORESET information corresponding to the SSBs.
The method of claim 8,

the CORESET information contained in a first SSB of the plurality of SSBs is the CORESET information corresponding to the first SSB; the plurality of SSBs do not contain identical CORESET information.
The method of claim 8, wherein determining CORESET information corresponding to a plurality of SSBs comprises:

Determining CORESET information corresponding to a first SSB in the plurality of SSBs according to CORESET information contained in the first SSB and index information of the first SSB; the plurality of SSBs contain the same CORESET information.
The method according to claim 9 or 10, wherein the CORESET information corresponding to the first SSB is not identical for at least two of the different time units.
The method according to any of claims 8-11, wherein the CORESET information corresponding to the plurality of SSBs is not identical, comprising:

and the resource blocks RB corresponding to the plurality of SSBs are not completely the same.
A method for determining control channel resources, comprising:

determining second CORESET information corresponding to the first SSB according to first CORESET information contained in the first SSB and the first SSB index information;

and sending the PDCCH according to the second CORESET information.
The method of claim 13, further comprising:

determining a plurality of third CORESET information corresponding to the first SSB according to the second CORESET information and the time unit information corresponding to the first SSB; the plurality of third CORESET information correspond to different time units respectively, and the plurality of third CORESET information are not completely the same;

And transmitting the PDCCH according to the plurality of pieces of third CORESET information.
A terminal device, comprising:

the device comprises a receiving module, a processing module and a processing module, wherein the receiving module is used for receiving a plurality of synchronous signal blocks SSBs, and each SSB in the plurality of SSBs comprises control resource set CORESET information and SSB index information;

the processing module is used for determining CORESET information corresponding to the index of the SSB according to the CORESET information contained in the SSB and the SSB index information; the CORESET information corresponding to a plurality of SSBs containing different SSB index information is not completely the same;

and detecting a Physical Downlink Control Channel (PDCCH) according to the CORESET information corresponding to the SSBs.
The apparatus of claim 15,

the CORESET information contained in a first SSB of the plurality of SSBs is the CORESET information corresponding to the first SSB; the plurality of SSBs do not contain identical CORESET information.
The device according to claim 15, wherein the processing module is specifically configured to:

determining CORESET information corresponding to a first SSB in the plurality of SSBs according to CORESET information contained in the first SSB and index information of the first SSB; the plurality of SSBs contain the same CORESET information.
The apparatus of claim 16 or 17, wherein the CORESET information corresponding to the first SSB is not identical for at least two of the different time units.
The apparatus according to any of claims 15-18, wherein CORESET information corresponding to the plurality of SSBs is not identical, comprising:

and the resource blocks RB corresponding to the plurality of SSBs are not completely the same.
A terminal device, comprising:

the receiving module is used for receiving a first SSB, wherein the first SSB comprises first CORESET information and index information of the first SSB;

the processing module is used for determining second CORESET information corresponding to the first SSB according to the first CORESET information and the index information of the first SSB;

and detecting the PDCCH according to the second CORESET information corresponding to the first SSB.
The apparatus of claim 20, wherein the processing module is further configured to:

determining a plurality of third CORESET information corresponding to the first SSB according to the second CORESET information and the time unit information corresponding to the first SSB; the plurality of third CORESET information correspond to different time units respectively, and the plurality of third CORESET information are not completely the same;

And detecting the PDCCH according to the plurality of pieces of third CORESET information.
A network device, comprising:

the processing module is used for determining CORESET information corresponding to a plurality of SSBs, wherein the CORESET information corresponding to each SSB in the plurality of SSBs is determined according to the CORESET information contained in the SSB and the SSB index information; the CORESET information corresponding to a plurality of SSBs containing different SSB index information is not completely the same;

and the sending module is used for sending the physical downlink control channel PDCCH according to the CORESET information corresponding to the SSBs.
The apparatus of claim 22,

the CORESET information contained in a first SSB in the plurality of SSBs is the CORESET information corresponding to the first SSB; the plurality of SSBs contain core set information that is not identical.
The device according to claim 22, wherein the processing module is specifically configured to:

according to CORESET information contained in a first SSB in the plurality of SSBs and index information of the first SSB, determining CORESET information corresponding to the first SSB; the plurality of SSBs contain the same CORESET information.
The apparatus of claim 23 or 24, wherein the CORESET information corresponding to the first SSB is not identical for at least two of the different time units.
The apparatus according to any of claims 22-25, wherein said plurality of SSBs correspond to CORESET information that is not identical, comprising:

and the resource blocks RB corresponding to the plurality of SSBs are not completely the same.
A network device, comprising:

the processing module is used for determining second CORESET information corresponding to the first SSB according to first CORESET information contained in the first SSB and the first SSB index information;

and the sending module is used for sending the PDCCH according to the second CORESET information.
The apparatus of claim 27, wherein the processing module is further configured to:

determining a plurality of third CORESET information corresponding to the first SSB according to the second CORESET information and the time unit information corresponding to the first SSB; the plurality of third CORESET information correspond to different time units respectively, and the plurality of third CORESET information are not completely the same;

and the sending module is also used for sending the PDCCH according to the plurality of pieces of third CORESET information.
A terminal device, comprising: a transceiver, a processor, a memory;

the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored by the memory, causing the processor to perform the method of any one of claims 1-5, or the method of claim 6 or 7.
A network device, comprising: a transceiver, a processor, a memory;

the memory stores computer execution instructions;

execution of the computer-executable instructions stored by the memory by the processor causes the processor to perform the method of any of claims 8-12, or the method of claim 13 or 14.
A computer-readable storage medium having stored thereon computer-executable instructions for implementing the method of any one of claims 1-5, or the method of claim 6 or 7, when executed by a processor.
A computer-readable storage medium having stored thereon computer-executable instructions for implementing the method of any one of claims 8-12, or the method of any one of claims 13 or 14, when executed by a processor.