WO2021031906A1

WO2021031906A1 - Method and apparatus for configuring time domain resources

Info

Publication number: WO2021031906A1
Application number: PCT/CN2020/108220
Authority: WO
Inventors: 李新县; 彭金磷; 唐浩
Original assignee: 华为技术有限公司
Priority date: 2019-08-16
Filing date: 2020-08-10
Publication date: 2021-02-25
Also published as: CN112399586A

Abstract

The present application provides a method and an apparatus for configuring a time domain resources. Said method comprises: a terminal receiving control information on a first time frequency resource, and configuring, according to the size of time domain resources of one or more control resource sets (CORESETs) indicated by the control information, the size of the time domain resources occupied by the one or more CORESETs. That is to say, a terminal can flexibly adjust, according to control information, time domain resources occupied by a CORESET, thereby reducing resource waste, and improving the resource utilization rate.

Description

Method and device for configuring time domain resources

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on August 16, 2019, the application number is 201910760368.0, and the application name is "Method and Device for Allocating Time Domain Resources", the entire content of which is incorporated into this application by reference in.

Technical field

This application relates to the field of communications, and more specifically, to a method and device for configuring time domain resources.

Background technique

In the current communication system, the control resource set (CORESET) includes multiple physical resource blocks (PRB) in the frequency domain, and can include 1 to 3 orthogonal frequency division complexes in the time domain. Technical (orthogonal frequency division multiplexing, OFDM) symbols are used, and they can be located at any position in the time slot. CORESET corresponds to one or more search spaces, and the search space can be used to indicate the time domain starting position of CORESET.

In the prior art, the configuration of time-frequency resources corresponding to CORESET is not flexible enough, resulting in low utilization of time-domain resources.

Summary of the invention

The present application provides a method and device for configuring time domain resources, which can improve the utilization rate of time domain resources.

In a first aspect, a method for configuring time-domain resources is provided. The method includes: receiving control information on a first time-frequency resource, where the control information is used to indicate time-domain resources of one or more second control resource sets CORESET The first time-frequency resource is the time-frequency resource corresponding to the search space of the first CORESET and the first CORESET; according to the control information, the size of the time-domain resource occupied by the one or more second CORESETs is configured.

The terminal receives the control information on the first time-frequency resource, and configures the size of the time-domain resource occupied by the one or more second CORESETs according to the size of the time-domain resource of the one or more second CORESETs indicated by the control information. In other words, the terminal can flexibly adjust the size of the time domain resources occupied by CORESET according to the control information, thereby reducing resource waste and improving resource utilization.

In some possible implementations, the control information is terminal group-level control information.

The size of the time domain resource of the second CORESET of one or more terminals included in the terminal group may be indicated by a terminal group-level control information. The network device can send the same control information to each terminal in the terminal group. The size of the time domain resource of the second CORESET of the terminals in different terminal groups can be separately indicated through control information. In other words, the network device can indicate the time domain resources of CORESET in the terminal group with the same type of control information, which saves resource overhead.

In some possible implementations, the control information is terminal-level control information.

The terminal-level control information can be a piece of control information that can be used to indicate the time domain resource size of the second CORESET in a terminal. That is to say, the time domain resource size of the second CORESET in different terminals can be separately indicated through different control information. In other words, the network device can flexibly indicate the size of the CORESET time domain resource of each terminal through the control information, which improves the flexibility of indicating the size of the time domain resource.

In some possible implementation manners, the control information includes a bit field, and the bit field is used to indicate the time domain resource size of the one or more second CORESETs.

The control information may be used to indicate the time domain resource size of all the second CORESETs in one terminal in a terminal group. In other words, the time domain resource sizes of all second COTESETs in one terminal in the terminal group are the same, thereby saving the overhead of resource occupation for indicating the time domain resource size of CORESET in the control information.

Or the control information can be used to indicate the size of the time domain resources of part of the second CORESET in a terminal. In other words, the size of the time domain resources of part of the second COTESETs in the terminal is the same, thereby saving the overhead of resource occupation for indicating the size of the time domain resources of the CORESET in the control information.

In some possible implementation manners, the control information includes multiple bit fields, and the multiple bit fields are respectively used to indicate the time domain resource sizes of the multiple second CORESETs.

The multiple bit fields may be respectively used to indicate the time domain resource size of one or more second CORESETs. That is to say, all second CORESETs in a terminal can be respectively indicated by the multiple bit fields, or all second CORESETs in all terminals in a terminal group can be respectively indicated by the multiple bit fields, that is, different The size of the time domain resource of the second CORESET can be different, that is, the flexibility of indicating the size of the time domain resource is further improved.

In some possible implementation manners, the one or more second CORESETs are located in a bandwidth part BWP of the terminal.

A bit field of the control information is used to indicate the time domain resource size of one or more second CORESETs in a certain BWP in the terminal group, or a bit field of the control information is used to indicate the size of the time domain resources in a certain terminal The time domain resource size of one or more second CORESETs in a certain BWP. That is, the control information can indicate the size of the time domain resource of the second CORESET in a BWP through a bit field, thereby improving the flexibility of indicating the size of the time domain resource.

In some possible implementation manners, the plurality of second CORESETs are located in at least two BWPs of the terminal.

The control information is indicated in a BWP set as a unit, and different bit fields in the control information can be used to indicate the size of the time domain resource of the second CORESET in different BWP sets, thereby improving the flexibility of indicating the size of the time domain resource.

In some possible implementations, the control information includes a bit field, the bit field is used to indicate the time domain resource size of CORESET in the CORESET set, the CORESET set includes the one or more second CORESETs, and the CORESET set corresponds to At least two terminals.

The terminal can receive the control information sent by the network device for indicating in the unit of the CORESET set, thereby improving the flexibility of the time domain resource size indication.

In some possible implementation manners, the time domain resource size of the second CORESET is the number of symbols occupied by the second CORESET.

In a second aspect, a method for configuring time domain resources is provided. The method includes: determining the size of time domain resources occupied by one or more second control resource sets CORESET; sending control information to the terminal on the first time-frequency resource, The control information is used to indicate the size of the time domain resource of the one or more second CORESETs, and the first time-frequency resource is the first CORESET and the time-frequency resource corresponding to the search space of the first CORESET.

The network device can send control information to a certain terminal, so that the terminal can receive the control information on the first time-frequency resource, and according to the time-domain resource size of the one or more first control resource sets CORESET indicated by the control information, Configure the size of the time domain resources occupied by the one or more CORESETs. In other words, the control information sent by the network device to the terminal can flexibly adjust the size of the time domain resources occupied by the CORESET used by the terminal, thereby reducing resource waste and improving resource utilization.

The network device can indicate the time domain resources of the CORESET in the terminal group with the same type of control information, saving resource overhead.

The network device can flexibly indicate the size of the time domain resource of each terminal's CORESET through the control information, which improves the flexibility of indicating the size of the time domain resource.

The size of the time domain resources of all the second COTESETs in one terminal in the terminal group is the same, or the size of the time domain resources of part of the second COTESETs in a terminal is the same, thus saving the control information for indicating CORESET The overhead of the time domain resource size.

Multiple second CORESETs can be indicated separately through multiple bit fields, that is, the time domain resource sizes of different second CORESETs can be different, that is, the flexibility of time domain resource size indication is further improved.

In some possible implementation manners, the one or more second CORESETs are located in a bandwidth portion BWP of the terminal.

The control information can indicate the time domain resource size of the second CORESET in a BWP through a bit field, thereby improving the flexibility of the time domain resource size indication.

The network device can indicate the size of the time domain resource of the second CORESET with the control information of the CORESET set level, thereby improving the flexibility of indicating the size of the time domain resource.

In a third aspect, a device for configuring time domain resources is provided. The device may be a terminal or a chip for the terminal, such as a chip that can be set in the terminal. The device has the function of realizing the above-mentioned first aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.

In a possible design, the device includes: a transceiver module and a processing module. The transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter. The transceiver module may include a receiving module and a transmitting module. Specifically, it may include a radio frequency circuit or an antenna. The processing module may be a processor. Optionally, the device further includes a storage module, and the storage module may be a memory, for example. When a storage module is included, the storage module is used to store instructions. The processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or from other instructions, so that the device executes the first aspect described above and various possible implementation methods of communication. In this design, the device can be a terminal.

In another possible design, when the device is a chip, the chip includes a transceiver module and a processing module. The transceiver module may be, for example, an input/output interface, pin, or circuit on the chip. The processing module may be a processor, for example. The processing module can execute instructions so that the chip in the terminal executes the foregoing and any possible implementation communication methods. Optionally, the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like. The storage module may also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.

Among them, the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above The first aspect, and any possible implementation of the integrated circuit for program execution of the communication method.

In a fourth aspect, a device for configuring time domain resources is provided. The device may be a network device or a chip used in a network device, such as a chip that can be set in a network device. The device has the function of realizing the above-mentioned second aspect and various possible implementation modes. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions.

In a possible design, the device includes: a transceiver module and a processing module. The transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter. The transceiver module may include a receiving module and a transmitting module. Specifically, it may include a radio frequency circuit or an antenna. The processing module may be a processor.

Optionally, the device further includes a storage module, and the storage module may be a memory, for example. When a storage module is included, the storage module is used to store instructions. The processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or instructions derived from other instructions, so that the device executes the second aspect or any one of the methods described above.

In another possible design, when the device is a chip, the chip includes a transceiver module and a processing module. The transceiver module may be, for example, an input/output interface, pin, or circuit on the chip. The processing module may be a processor, for example. The processing module can execute instructions so that the chip in the network device executes the second aspect and any possible implementation communication methods.

Optionally, the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like. The storage module may also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.

Among them, the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above All aspects of the communication method program execution integrated circuit.

In a fifth aspect, a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the first aspect and any possible implementations thereof.

In a sixth aspect, a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the second aspect and any possible implementations thereof.

In a seventh aspect, a computer program product containing instructions is provided, which when running on a computer, causes the computer to execute the method in the first aspect described above, or any possible implementation manner thereof.

In an eighth aspect, a computer program product containing instructions is provided, which when running on a computer, causes the computer to execute the method in the second aspect described above, or any possible implementation manner thereof.

In a ninth aspect, a communication system is provided. The communication system includes a device capable of implementing the methods and various possible designs of the above-mentioned first aspect, and the foregoing device capable of implementing the various methods and various possible designs of the above-mentioned second aspect. Functional device.

Based on the above technical solution, the terminal receives the control information on the first time-frequency resource, and configures the size of the time-domain resource occupied by the one or more CORESETs according to the size of the time-domain resource of the one or more CORESETs indicated by the control information. In other words, the terminal can flexibly adjust the size of the time domain resources occupied by CORESET according to the control information, thereby reducing resource waste and improving resource utilization.

Description of the drawings

Figure 1 is a schematic diagram of a communication system of the present application;

FIG. 2 is a schematic flowchart of a method for configuring time domain resources according to an embodiment of the present application;

3 is a schematic diagram of an indication object of control information in an embodiment of the present application;

FIG. 4 is a schematic diagram of another indication object of control information in an embodiment of the present application;

FIG. 5 is a schematic block diagram of an apparatus for configuring time domain resources according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an apparatus for configuring time domain resources according to an embodiment of the present application;

FIG. 7 is a schematic block diagram of an apparatus for configuring time domain resources according to another embodiment of the present application;

FIG. 8 is a schematic structural diagram of an apparatus for configuring time domain resources according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of an apparatus for configuring time domain resources according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of an apparatus for configuring time domain resources according to another embodiment of the present application;

FIG. 11 is a schematic structural diagram of an apparatus for configuring time domain resources according to another embodiment of the present application;

FIG. 12 is a schematic structural diagram of an apparatus for configuring time domain resources according to another embodiment of the present application.

detailed description

The technical solution in this application will be described below in conjunction with the drawings.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex) , TDD), the fifth generation (5G) system or the new radio (NR) and future mobile communication systems.

The terminal in the embodiment of the present application may refer to a device with a wireless transceiver function, which may be called a terminal (terminal), user equipment (UE), mobile station (MS), and mobile terminal (mobile terminal). MT), vehicle terminal, remote station, remote terminal, etc. The specific form of the terminal can be mobile phone, cellular phone, cordless phone, session initiation protocol (SIP) phone, wearable device tablet computer (pad), desktop computer, notebook computer, all-in-one machine, and vehicle terminal , Wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), etc. The terminal can be applied to the following scenarios: virtual reality (virtual reality, VR), augmented reality (augmented reality, AR), industrial control (industrial control), unmanned driving (self-driving), remote medical surgery, smart grid (smart grid), transportation safety (transportation safety), smart city (smart city), smart home (smart home), etc. The terminal can be fixed or mobile. It should be noted that the terminal may support at least one wireless communication technology, such as LTE, NR, and wideband code division multiple access (WCDMA).

The network device in the embodiment of the present application may be a device that provides a wireless communication function for a terminal, and may also be called a radio access network (RAN) device. Network equipment includes but is not limited to: next generation nodeB (gNB) in 5G, evolved node B (evolved node B, eNB), baseband unit (BBU), transmitting and receiving point, TRP), transmitting point (transmitting point, TP), relay station, access point, etc. The network device may also be a wireless controller, a centralized unit (CU), a distributed unit (DU), etc. in a cloud radio access network (cloud radio access network, CRAN) scenario. Among them, the network device can support at least one wireless communication technology, such as LTE, NR, WCDMA, and so on.

In some deployments, the gNB may include centralized units CU and DU. The gNB may also include an active antenna unit (AAU). CU implements part of the functions of gNB, and DU implements part of the functions of gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions. The DU is responsible for processing physical layer protocols and real-time services, and realizes the functions of the radio link control (RLC) layer, media access control (MAC) layer, and physical (PHY) layer. AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by DU , Or, sent by DU and AAU. It can be understood that the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network equipment in an access network (radio access network, RAN), or the CU can be divided into network equipment in a core network (core network, CN), which is not limited in this application.

In the embodiments of the present application, the terminal or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory). The operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. In addition, the embodiments of the application do not specifically limit the specific structure of the execution subject of the methods provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided according to the embodiments of the application. For example, the execution subject of the method provided in the embodiment of the present application may be a terminal or a network device, or a functional module in the terminal or network device that can call and execute the program.

In addition, various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques. For example, computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.

Figure 1 is a schematic diagram of a communication system of the present application. The communication system in FIG. 1 may include at least one terminal (for example, terminal 10, terminal 20, terminal 30, terminal 40, terminal 50, and terminal 60) and a network device 70. The network device 70 is used to provide communication services for the terminal and access the core network. The terminal can access the network by searching for synchronization signals, broadcast signals, etc. sent by the network device 70, so as to communicate with the network. The terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60 in FIG. 1 can perform uplink and downlink transmissions with the network device 70. For example, the network device 70 may send downlink signals to the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60, and may also receive the uplink signal sent by the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60.

In addition, the terminal 40, the terminal 50, and the terminal 60 can also be regarded as a communication system, and the terminal 60 can send signals to the terminal 40 and the terminal 50, and can also receive signals sent by the terminal 40 and the terminal 50.

It should be noted that the embodiments of the present application may be applied to a communication system including one or more network devices, and may also be applied to a communication system including one or more terminals, which is not limited in this application. One of the network devices can send data or control signaling to one or more terminals. Multiple network devices can also send data or control signaling to one or more terminals at the same time.

The following briefly introduces the terms involved in this application.

1. Time-frequency resources:

The terminal and the network device can perform data transmission through the time-frequency resource in the air interface resource. Wherein, air interface resources may include time domain resources, frequency domain resources, and code domain resources, and time domain resources and frequency domain resources may also be collectively referred to as time-frequency resources. Specifically, a frequency domain resource is a continuous or discontinuous frequency domain unit in the frequency domain, such as a physical resource block (resource block, RB), or physical resource block group (resource block group, RBG), or resource unit ( resource element, RE) etc. The time domain resource can be a continuous or discontinuous time unit in the time domain, such as a symbol, or a time slot, or a mini-slot, or a subframe, or a transmission interval. The frequency domain resource may be located in a set frequency range, the frequency range may also be called a band or frequency band, and the width of the frequency domain resource may be called a bandwidth (BW). The time-frequency resource may specifically also be a resource grid, and the resource grid is divided by the time domain and the frequency domain. The time domain unit of the resource grid may be a symbol, the frequency domain unit may be a subcarrier, and the smallest resource unit in the resource grid may be referred to as RE. One RB may include one or more subcarriers in the frequency domain, for example, it may be 12 subcarriers. A slot can include one or more symbols in the time domain. For example, a slot in NR can include 14 symbols (for example, in the case of a common cyclic prefix (CP)) or 12 symbols (for example, in the In the case of extended cyclic prefix).

2. Bandwidth:

Bandwidth can be understood as a continuous or discontinuous resource in the frequency domain. For example, the carrier may include bandwidth, and bandwidth may include bandwidth part (BWP). Among them, the concept of carrier is described from the perspective of signal generation at the physical layer. A carrier is defined by one or more frequency points, corresponding to a continuous or discontinuous frequency spectrum, and is used to carry communication data between network equipment and terminals. The downlink carrier can be used for downlink transmission, and the uplink carrier can be used for uplink transmission.

3. Control channel element (CCE):

The CCE is a basic unit constituting the PDCCH and occupies a certain number of RE groups (RE Group, REG) in the frequency domain, for example, six. A given PDCCH can be composed of a certain number of CCEs, such as 1, 2, 4, 8, and 16. The specific value can be determined by the downlink control information (DCI) load size and required The encoding rate is determined. In NR PDCCH, the actual physical resources to which a CCE is mapped include 72 REs, of which 18 resources are used for demodulation reference signals, and 54 REs are used for DCI information transmission.

4. REG and REG bundle (bundle):

REG occupies one OFDM symbol in the time domain, and a certain number of physical resource units in the frequency domain, such as a physical resource unit of a resource block. One of the physical resource blocks may include 12 consecutive subcarriers in the frequency domain. In one REG, 3 REs are used to map demodulation reference signals of PDCCH, and 9 REs are used to map REs of DCI. Wherein, the REs used for mapping the PDCCH demodulation reference signal are evenly distributed in the REG, and the subcarriers numbered 1, 5, and 9 are located in the REG.

A REG bundle is a number of consecutive REGs in the time domain and/or frequency domain. The number of REGs constituting a REG bundle may be 1, 2, 3, and 6, and the PDCCH mapped in a REG bundle uses the same precoding That is, the terminal can use the demodulation reference signal in the REG bundle to perform joint channel estimation in the time domain and/or frequency domain to improve the accuracy of channel estimation.

5. CORESET:

CORESET includes multiple physical resource blocks in the frequency domain, 1 to 3 OFDM symbols in the time domain, and can be located at any position in the time slot. The time domain resources occupied by CORESET are semi-statically configured by high-level parameters. In NR, the resource configuration of CORESET does not support dynamic signaling indication. In the frequency domain, the configuration of CORESET supports continuous and discrete frequency domain resource configuration, and the configured CORESET does not exceed the frequency domain range of BWP. In addition, the granularity of CORESET frequency domain resource configuration is 6 REGs.

6. Search space:

The search space is a set of candidate physical downlink control channels (PDCCH) under a certain aggregation level. The number of CCEs constituting the PDCCH is called the aggregation level. The network device can adjust the aggregation level of the PDCCH according to the actual transmission wireless channel state to realize link adaptive transmission. The aggregation level of the PDCCH sent by the network equipment is variable over time. Since there is no related signaling to inform the terminal, the terminal needs to blindly detect the PDCCH under different aggregation levels. Among them, the PDCCH to be blindly detected is called a candidate PDCCH. The terminal will decode all candidate PDCCHs in the search space. If the cyclic redundancy check (CRC) check is passed, the content of the decoded PDCCH will be considered valid for the terminal and use the translation The information obtained by the code performs subsequent operations.

In order to reduce the complexity of blind detection of the terminal, it is necessary to limit the set of blind detection CCEs. The starting CCE sequence number of the candidate PDCCH needs to be divisible by the number of CCEs of the candidate PDCCH. For example, a candidate PDCCH with an aggregation level of 2 can only start from a CCE sequence number divisible by 2. The same principle applies to search spaces of other aggregation levels.

7. Search space configuration:

In NR, a maximum of 10 search space sets can be configured in each downlink BWP in the serving cell. Among them, each search space set includes one or more aggregation levels of search spaces. In addition, in the NR, the time domain configuration information of the search space set is newly added, and the terminal can detect the candidate PDCCH according to the position of the configured search space set in the time domain, and there is no need to detect the candidate PDCCH in each downlink subframe. The configuration information of the search space is shown in Table 1 below.

Table 1

8. Determination of search space:

The determination of the terminal search space is divided into two steps: First, the terminal determines the CCE index of each candidate PDCCH in the CORESET in the configured candidate PDCCH set according to the configuration information of the search space set. Second, the terminal determines the candidate PDCCH set to be detected in the configured candidate PDCCH set according to a preset rule. The candidate PDCCH set to be detected is a subset of the configured candidate PDCCH set. The CCE index of each candidate PDCCH in the NR in CORESET is determined according to a given search space function.

In the traditional solution, the time-frequency resources occupied by CORESET are semi-statically configured by high-level signaling, that is, after CORESET is configured by RRC signaling, it cannot be dynamically updated. In this way, the terminal and the network device transmit control information on the semi-statically configured CORESET and the time-frequency resource of the search space corresponding to the CORESET, which will make the utilization rate of the time-domain resource lower.

FIG. 2 is a schematic flowchart of a method for configuring time domain resources according to an embodiment of the present application.

It should be noted that, when the execution subject of the embodiment of the present application is a terminal, it may also be specifically a chip in the terminal. When the execution body is a network device, it may also be a chip in the network device. For convenience of description, the following embodiments take a terminal or a network device as an example for description, but the application is not limited to this.

201. The network device determines the size of time domain resources occupied by one or more second CORESETs.

Specifically, the network device can flexibly configure one or more time domain resources occupied by the second CORESET for each terminal.

Optionally, the size of the time domain resource may be the number of time domain units. For example, the time domain unit is a subframe, a slot, a mini-slot, or a symbol (for example, an OFDM symbol), which is not limited in this application.

Optionally, when the time domain resource is the number of symbols, the value of the number of symbols may be determined according to the capability of the terminal feedback, or it may be predefined. For example, the value of the number of symbols may be Any one from 1 to 4. Wherein, the number of symbols can be configured through radio resource control RRC signaling, which is not limited in this application.

202. The terminal receives control information on the first time-frequency resource, where the control information is used to indicate the size of the time-domain resource of one or more second CORESETs, and the first time-frequency resource is the size of the first CORESET and the first CORESET. Time-frequency resources corresponding to the search space. Correspondingly, the network device sends the control information to the terminal on the first time-frequency resource.

Specifically, the network device may send control information to one or more terminals. Unless otherwise specified, the following embodiments take the network device sending control information to a certain terminal (hereinafter referred to as “terminal”) as an example. Note, but this application is not limited to this. The terminal can learn the time domain length and frequency domain resources occupied by the first CORESET and the time domain start position of the search space corresponding to the first CORESET. In this way, the terminal can determine a time-frequency resource (that is, the first time-frequency resource), and receive control information on the first time-frequency resource. Wherein, the control information is used to indicate the time domain resource size of one or more second CORESETs.

It can be explained that the way in which the terminal obtains the time domain length and frequency domain resources occupied by the first CORESET and the time domain starting position of the search space corresponding to the first CORESET may be for the terminal to receive the first configuration information sent by the network device And second configuration information, the first configuration information is used to configure the time domain length and frequency domain resources occupied by the first CORESET, and the second configuration information is used to configure the time domain start position of the search space corresponding to the first CORESET. Wherein, the first configuration information and the second configuration information may be carried in one message, which is not limited in this application.

It should be noted that "receive" in step 202 can be understood as the terminal obtains control information through blind detection of the PDCCH, and parses out the content in the control information.

It should be noted that the first time-frequency resource may be pre-appointed by the network device and the terminal (for example, the first symbol in the time slot), or the network device may pass high-level signaling (system message, main information block ( Master information block (MIB) or system information block (system information block, SIB)) pre-configured. In other words, the time domain resource of the first time-frequency resource is pre-configured by high-level signaling, which is not limited in this application.

It should be understood that the time-frequency resource corresponding to the second CORESET can also be used to transmit control information, and can also transmit service data, which is not limited in this application.

It should also be understood that the time slot occupied by the first CORESET is N, and the control information can be used to adjust the time domain resources occupied by the second CORESET in the time slot N+K, where K is a positive integer greater than or equal to 0. The second CORESET and the first CORESET may occupy the same frequency domain resources or different frequency domain resources. That is, the control information can be used to adjust the time domain resource size of the second CORESET that occupies the same frequency domain resource as the first CORESET, and can also be used to adjust the time domain resource size of the second CORESET that occupies a different frequency domain resource from the first CORESET. Domain resource size. The size of the time domain resource indicated by the control information may be different from or the same as the size of the time domain resource of the first CORESET. Optionally, the first CORESET and the second CORESET have the same search resource collection index, that is, the CORESET ID.

It should also be understood that the control information in the embodiment of the present application may be downlink control information (DCI).

Optionally, the time domain resource size of the second CORESET may be the number of time domain units occupied by the second CORESET. For example, the number of time domain units is the number of subframes, time slots, minislots, or OFDM symbols, which is not limited in this application.

In an embodiment, the control information may be terminal group-level control information.

Specifically, the time domain resource size of the second CORESET of one or more terminals included in the terminal group may be indicated by a terminal group-level control information. The network device can send the same control information to each terminal in the terminal group. The size of the time domain resources of the second CORESET of the terminals in different terminal groups can be separately indicated through different control information.

It should be noted that the terminal group may include one or more terminals. The first COTESET of the terminal in the terminal group may be the first COTESET of each terminal in all the terminals in the terminal group.

In a possible implementation, when the control information is terminal group-level control information, a bit field in the control information is used to indicate the time domain resource size of the CORESET in the CORESET set, and the CORESET set includes the one or Multiple second CORESETs, the set of CORESETs corresponds to at least one terminal, that is, one field in the terminal group-level control information indicates the time domain resource size of all CORESETs of at least one terminal, for example, the terminal group includes five terminals, and the group-level control information A bit field can be used in the control information to indicate the time domain resource size of the CORESET of all terminals, or the group-level control information includes two bit fields, one of which indicates the time domain of the CORESET of the three terminals Resource size, another bit field indicates the time domain resource size of the two terminals.

It should be noted that the description of the bit fields in the control information in the embodiments of the present application may be only a description of at least part of all the bit fields included in the control information, and the control information may also include other bit fields. The functions of other bit fields may be the same as or different from the functions of the currently described bit fields, which is not limited in this application.

It should be understood that the bit field in the embodiment of the present application may also be referred to as a "bit field", or an information field, which may include at least one bit.

It should be understood that, in this embodiment of the present application, the size of the UE group-level control information and the position of the terminal bit field in the control information can be configured through high-level signaling.

In another possible implementation manner, a bit field in the control information may be used to indicate the time domain resource size of the one or more second CORESETs. In the following embodiments, this bit field used to indicate the size of the time domain resource of one or more second CORESETs may be referred to as the "first bit field".

In one implementation, when the terminal group includes multiple terminals, the control information may include multiple "first bit fields", and each "first bit field" is used to indicate a terminal in a terminal group. The time domain resource size of all CORESET. In other words, the time domain resource size of the second CORESET in one terminal in the terminal group is the same.

For example, as shown in Figure 3, it is a schematic diagram of the indication of control information. The terminal group indicated by the control information includes two terminals (UE1 and UE2). UE1 and UE2 include two BWPs (BWP1 and BWP2), each The BWP1 in the terminal includes two CORESETs (CORESET1 and CORESET2), and the BWP2 in each terminal includes two CORESETs (CORESET1 and CORESET2). Among them, CORESET1 in BWP1 is expressed as "BWP1 CORESET1" below, CORESET2 in BWP1 is expressed as "BWP1 CORESET2" below, and CORESET in BWP2 is also expressed similarly. It should also be understood that all the CORESETs shown in FIG. 3 may be the second CORESETs in the embodiment of the present application. At this time, the terminal group-level control information includes two bit fields, and each bit field is used to indicate CORESET in a terminal. The first bit field is used to indicate the size of the CORESET time domain resource of UE1, that is, BWP1 CORESET1, BWP1 CORESET2, BWP2 CORESET1 and BWP2 CORESET2 of the four CORESET time domain resource sizes of UE1. The four CORESEST time domain resources have the same size, and the second The bits field is used to indicate the size of the CORESET time domain resource of UE2, that is, BWP1 CORESET1, BWP1 CORESET2, BWP2 CORESET1 and BWP2 CORESET2 of the four CORESET time domain resources. The four CORESEST time domain resources have the same size, the first bit The size of the time domain resource indicated by the field and the second bit field can be the same or different. It should be noted that the aforementioned first bit field may be any one of the aforementioned two bit fields.

Optionally, the one or more second CORESETs may be located in one BWP of the terminal.

Specifically, the terminal group includes multiple terminals, and a bit field in the terminal group-level control information indicates the size of one or more second CORESET time domain resources, and the one or more second CORESET may be located in one of the terminals. Within BWP. That is to say, a bit field of the control information is used to indicate the time domain resource size of one or more second CORESETs in a certain BWP of a terminal in the terminal group.

For example, as shown in Figure 3, the terminal group-level control information includes 4 bit fields. The first bit field is used to indicate the time domain resource size of BWP1 CORESET1 and BWP1CORESET2 of UE1, and the second bit field is used to indicate UE1’s BWP2 CORESET1 and BWP2 CORESET2 time domain resource size, the third bit field is used to indicate UE2’s BWP1 CORESET1 and BWP1 CORESET2 time domain resource size, the fourth bit field is used to indicate UE2’s BWP2 CORESET1 and BWP2 CORESET2 The size of the time domain resource, the size of the time domain resource indicated by different bit fields may be the same or different. In other words, the aforementioned first bit field can be any one of the above four bit fields.

Optionally, the plurality of first CORESETs are located in at least one BWP of the terminal.

Specifically, the control information includes one or more bit fields, one of the one or more bit fields may be used to indicate the time domain resource size of one or more first CORESETs in the BWP in the BWP set, the BWP set Contains at least one BWP. That is, the control information is indicated in the unit of the BWP set, and different bit fields in the control information can be used to indicate the time domain resource size of the first CORESET in different BWP sets. The BWP included in the BWP set corresponds to at least one terminal.

For example, the terminal group-level control information includes two bit fields. The first bit field is used to indicate the time domain resource size of one or more CORESETs in BWP set 1, and the second bit field is used to indicate BWP set 2 The size of the time domain resource of one or more CORESETs. For example, BWP set 1 includes BWP1 of UE1 and BWP2 of UE1, and BWP set 2 includes BWP1 of UE2 and BWP2 of UE2. Or, BWP set 1 includes BWP1 of UE1 and BWP1 of UE2, and BWP set 2 includes BWP2 of UE1 and BWP2 of UE2. Wherein, the above-mentioned first bit field may be any one of the two bit fields.

It should be noted that the BWPs included in the BWP set may be pre-appointed or configured by high-level signaling, which is not limited in this application.

In another possible implementation manner, multiple bit fields in the control information are respectively used to indicate the time domain resource size of the one or more second CORESETs.

Specifically, the foregoing multiple bit fields may be part of all bit fields included in the control information, and the multiple bit fields may be respectively used to indicate the time domain resource size of one or more second CORESETs. That is to say, multiple second CORESETs in a terminal can be respectively indicated by multiple bit fields.

It should be understood that the size of the UE group-level control information and the position of the terminal's bit field in the control information can be configured through high-level signaling.

It should also be noted that the time domain resource size of the second CORESET indicated by different bit fields may be the same or different, which is not limited in this application.

For example, as shown in Figure 3, the control information can include eight bit fields. For example, the first bit field is used to indicate the time domain resource size of BWP1 CORESET1 of UE1, and the second bit field is used to indicate the time domain resource size of BWP1 CORESET2 of UE1. The third bit field is used to indicate the time domain resource size of UE1’s BWP2 CORESET1, the fourth bit field is used to indicate the time domain resource size of UE1’s BWP2 CORESET2, and the fifth bit field is used Indicate the size of the time domain resource of BWP1 CORESET1 of UE2, the sixth bit field is used to indicate the size of time domain resource in BWP1 CORESET2 of UE2, the seventh bit field is used to indicate the size of time domain resource of BWP2 CORESET1 of UE2, the eighth The bits field is used to indicate the size of time domain resources in BWP2 CORESET2 of UE2.

Optionally, the manner in which the control information indicates the time domain resource size of the second CORESET can be specifically implemented by the network device instructing one of the pre-configured CORESET sets.

For example, the CORESET set includes four CORESETs, namely CORESET1, CORSET2, CORESET3, and CORESET4. The parameters of the CORESET set can be configured through high-level signaling. Among them, this parameter includes the time domain resource size of CORESET1 to CORESET4. The network device can indicate the second CORESET in the CORESET set through the bits in the control information. Among them, bit 00 indicates CORESET1, 01 indicates CORESET2, 10 indicates CORESET3, and 11 indicates CORESET4. In this way, the terminal can determine which CORESET in the CORESET set is the second CORESET according to the value of this bit, and can understand that the indicated CORESET is activated. In this way, the time domain resource size of the second CORESET can be determined.

Optionally, the terminal group-level control information may be a format that reuses group-level control information in a traditional solution, for example, terminal group-level DCI: DCI2_0, DCI2_1, DCI2_2, etc. Or add a new UE group-level control information format, for example, add a new DCI format 2x, and the new control information can be scrambled with a specific radio network temporary identifier (RNTI), such as CORESET-RNTI plus In addition, the RNTI value and load size of the CORESET-RNTI can be carried in the radio resource control RRC signaling.

In another embodiment, the control information may also be terminal-level control information.

Specifically, the terminal-level control information may be control information sent by the network device for a specific terminal. The control information is only valid for the specific terminal and may be used to indicate the size of the time domain resource of the second CORESET in a terminal. That is to say, the time domain resource size of the second CORESET in different terminals can be separately indicated through different control information.

Optionally, the UE-level control information may be DCI1_0, or DCI 1_1, or may be a new DCI format 1x, which is not limited in this application.

In a possible implementation manner, the control information includes a bit field, and the bit field is used to indicate the time domain resource size of the one or more second CORESETs. In the following embodiments, a bit field used to indicate the size of the time domain resource of one or more second CORESETs may be referred to as a "second bit field".

Specifically, the one bit field may be used to indicate the time domain resource size of one or more second CORESETs in a terminal. In other words, the size of time domain resources of one or more second CORESETs in the terminal may be the same. For example, as shown in Figure 4, the size of time domain resources of BWP1 CORESET1, BWP1 CORESET2, BWP2 CORESET1 and BWP2 CORESET2 can be the same.

It should be noted that, a terminal includes two BWPs, and can also include three or four BWPs, or one BWP, or other more or less BWPs. In this application, a terminal includes two BWPs as an example. , But this application is not limited to this. A BWP may include two CORESETs, or may include more or fewer CORESETs, which is not limited in this application.

Optionally, the one or more second CORESETs are located in a BWP of the terminal.

Specifically, the one or more second CORESETs are located in a BWP of the terminal, that is, the first bit field indicates the time domain resource size of one or more second CORESETs in a certain BWP in a terminal.

For example, as shown in Figure 4, the control information may include two bit fields, one bit field is used to indicate the time domain resource size of BWP1 CORESET1 and BWP1 CORESET2, and the other bit field is used to indicate the time domain resource size of BWP2CORESET1 and BWP2CORESET2 . Wherein, the above-mentioned second bit field may be any one of the two bit fields.

Optionally, the plurality of second CORESETs are located in at least one BWP of the terminal.

Specifically, the control information includes multiple bit fields, and one bit field of the multiple bit fields may be used to indicate the time domain resource size of the multiple first CORESETs in at least one BWP in the terminal. That is, each of the multiple bit fields may indicate the size of the time domain resource of the first CORESET in the unit of a BWP set, and the BWP set includes at least one BWP.

For example, as shown in FIG. 4, the BWP set includes BWP1 and BWP2, and a bit field in the control information (that is, the second bit field described above) may be used to indicate the time domain resource size of CORESET in the BWP set. That is, this bit field can indicate the time domain resource size of BWP1 CORESET1, BWP1 CORESET2, BWP2 CORESET1 and BWP2 CORESET2. The size of time domain resources of BWP1 CORESET1 and BWP1 CORESET2 is the same as that of BWP2 CORESET1 and BWP2 CORESET2.

In another possible implementation manner, the control information includes multiple bit fields, and the multiple bit fields are respectively used to indicate the time domain resource size of the one or more second CORESETs.

Specifically, the control information includes multiple bit fields, and the multiple bit fields may be used to indicate the time domain resource size of the same second CORESET, or may be used to indicate the time domain resource size of a second CORESET (ie, The multiple bit fields have a one-to-one correspondence with multiple second CORESET time-domain information). For example, as shown in Figure 4, the terminal-level control information includes four bit fields. The first bit field is used to indicate the time domain resource size of BWP1 CORESET1, and the second bit field is used to indicate the time domain BWP1 CORESET2. Resource size, the third bit field is used to indicate the time domain resource size of BWP2 CORESET1, and the fourth bit field is used to indicate the time domain resource size of BWP2 CORESET2.

203. The terminal configures the time domain resources occupied by the one or more second CORESETs according to the control information.

Specifically, the terminal receives control information on the first time-frequency resource, and configures the time-domain resources occupied by the one or more CORESETs according to the size of the time-domain resources of the one or more second CORESETs indicated by the control information. In other words, the terminal can flexibly adjust the time domain resources occupied by CORESET according to the control information, or dynamically update the time domain resources occupied by CORESET, thereby reducing resource waste and improving resource utilization.

It should be noted that, when the time domain resources occupied by one or more CORESETs indicated by the control information is the number of time domain units, the terminal configures the time domain resources according to the number of time domain units. For example, if the time domain resource indicated by the control information is the number of symbols, the terminal configures the number of symbols.

It should be understood that the configuration of the time domain resource may be to reserve the time domain resource for subsequent agreed signal transmission.

It should also be understood that when the terminal activates a certain CORESET, the search space corresponding to the CORESET is also activated.

Therefore, in the method for configuring time-domain resources in the embodiments of the present application, the terminal receives control information on the first time-frequency resource, and configures the one or more CORESETs according to the size of the time-domain resources of the one or more CORESETs indicated by the control information. The size of time domain resources occupied by a CORESET. In other words, the terminal can flexibly adjust the time domain resources occupied by CORESET according to the control information, thereby reducing resource waste and improving resource utilization.

The various embodiments described in this document may be independent solutions, or may be combined according to internal logic, and these solutions fall within the protection scope of the present application.

It can be understood that, in the foregoing method embodiments, the methods and operations implemented by the terminal can also be implemented by components (such as chips or circuits) that can be used in the terminal, and the methods and operations implemented by the network device can also be implemented by The components (such as chips or circuits) of network devices are implemented.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of each interaction. It can be understood that, in order to realize the above-mentioned functions, each network element, such as a terminal or a network device, includes a hardware structure and/or software module corresponding to each function. Those skilled in the art should be aware that, in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The embodiment of the present application may divide the terminal or the network device into functional modules according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of using the corresponding functional modules to divide each functional module.

It should be understood that the specific examples in the embodiments of the present application are only intended to help those skilled in the art to better understand the embodiments of the present application, rather than limiting the scope of the embodiments of the present application.

It should be understood that, in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application. The implementation process constitutes any limitation.

Above, the method provided by the embodiment of the present application has been described in detail with reference to FIG. 2. Hereinafter, the device provided by the embodiment of the present application will be described in detail with reference to FIGS. 5 to 11. It should be understood that the description of the device embodiment and the description of the method embodiment correspond to each other. Therefore, for the content that is not described in detail, please refer to the above method embodiment. For brevity, details are not repeated here.

FIG. 5 shows a schematic block diagram of an apparatus 500 for configuring time domain resources according to an embodiment of the present application.

It should be understood that the apparatus 500 may correspond to each terminal shown in FIG. 1 and the terminal in the embodiment shown in FIG. 2, and may have any function of the terminal in the method embodiment shown in FIG. 2. The device 500 includes a transceiver module 510 and a processing module 520.

The transceiver module 510 is configured to receive control information on a first time-frequency resource, where the control information is used to indicate the size of time-domain resources of one or more second control resource sets CORESET, and the first time-frequency resource is the first CORESET The time-frequency resource corresponding to the search space of the first CORESET;

The processing module 520 is configured to configure the size of the time domain resources occupied by the one or more second CORESETs according to the control information.

Optionally, the control information is terminal group-level control information.

Optionally, the control information is terminal-level control information.

Optionally, the control information includes a bit field, and the bit field is used to indicate the time domain resource size of the one or more second CORESETs.

Optionally, the control information includes multiple bit fields, and the multiple bit fields are respectively used to indicate the time domain resource sizes of the multiple second CORESETs.

Optionally, the plurality of second CORESETs are located in at least two BWPs of the terminal.

Optionally, the control information includes a bit field for indicating the size of the time domain resource of CORESET in the CORESET set, the CORESET set includes the one or more second CORESETs, and the CORESET set corresponds to at least two terminals .

Optionally, the time domain resource size of the second CORESET is the number of symbols occupied by the second CORESET.

Therefore, in the apparatus for configuring time-domain resources in the embodiment of the present application, the terminal receives control information on the first time-frequency resource, and configures the one or more CORESETs according to the time-domain resource size of the one or more CORESETs indicated by the control information. The size of time domain resources occupied by a CORESET. In other words, the terminal can flexibly adjust the time domain resources occupied by CORESET according to the control information, thereby reducing resource waste and improving resource utilization.

FIG. 6 shows an apparatus 600 for configuring time domain resources provided by an embodiment of the present application. The apparatus 600 may be the terminal described in FIG. 2. The device can adopt the hardware architecture shown in FIG. 6. The device may include a processor 610 and a transceiver 630. Optionally, the device may also include a memory 640. The processor 610, the transceiver 630, and the memory 640 communicate with each other through an internal connection path. The related functions implemented by the processing module 520 in FIG. 5 may be implemented by the processor 610, and the related functions implemented by the transceiver module 510 may be implemented by the processor 610 controlling the transceiver 630.

Optionally, the processor 610 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), a dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions). For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control devices that configure time domain resources (such as base stations, terminals, or chips), execute software programs, and process software programs. data.

Optionally, the processor 610 may include one or more processors, for example, one or more central processing units (CPU). In the case where the processor is a CPU, the CPU may be a single processor. The core CPU can also be a multi-core CPU.

The transceiver 630 is used to send and receive data and/or signals, and to receive data and/or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.

The memory 640 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), read-only memory A compact disc (read-only memory, CD-ROM). The memory 640 is used to store related instructions and data.

The memory 640 is used to store program codes and data of the terminal, and may be a separate device or integrated in the processor 610.

Specifically, the processor 610 is configured to control the transceiver to perform information transmission with the terminal. For details, please refer to the description in the method embodiment, which will not be repeated here.

In specific implementation, as an embodiment, the apparatus 600 may further include an output device and an input device. The output device communicates with the processor 610, and can display information in a variety of ways. For example, the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc. . The input device communicates with the processor 610 and can receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, or a sensor device.

It can be understood that FIG. 6 only shows a simplified design of the device for configuring time domain resources. In practical applications, the device may also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals that can implement this application are within the protection scope of this application. within.

In a possible design, the device 600 may be a chip, for example, a communication chip that can be used in a terminal to implement related functions of the processor 610 in the terminal. The chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. The chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.

The embodiment of the present application also provides a device, which may be a terminal or a circuit. The device can be used to perform the actions performed by the terminal in the foregoing method embodiments.

FIG. 7 shows a schematic block diagram of an apparatus 700 for configuring time domain resources according to an embodiment of the present application.

It should be understood that the apparatus 700 may correspond to the network device in the embodiment shown in FIG. 2 and may have any function of the network device in the method. The device 700 includes a processing module 710 and a transceiver module 720.

The processing module 710 is configured to determine the size of time domain resources occupied by one or more second CORESETs;

The transceiver module 720 is configured to send control information to the terminal on the first time-frequency resource, the control information is used to indicate the size of the time-domain resource of the one or more second CORESETs, and the first time-frequency resource is the first CORESET The time-frequency resource corresponding to the search space of the first CORESET.

Optionally, the control information is terminal-level control information.

Therefore, in the apparatus for configuring time domain resources in the embodiments of the present application, the network device can send control information to a certain terminal, so that the terminal can receive the control information on the first time-frequency resource, and according to the one or the one indicated by the control information The time domain resource size of the multiple first control resource sets CORESET is configured to configure the time domain resource size occupied by the one or more CORESETs. In other words, the control information sent by the network device to the terminal can flexibly adjust the size of the time domain resources occupied by the CORESET used by the terminal, thereby reducing resource waste and improving resource utilization.

FIG. 8 shows an apparatus 800 for configuring time domain resources provided by an embodiment of the present application. The apparatus 800 may be the network device described in FIG. 2. The device can adopt the hardware architecture shown in Figure 8. The device may include a processor 810 and a transceiver 820. Optionally, the device may also include a memory 830. The processor 810, the transceiver 820, and the memory 830 communicate with each other through an internal connection path. The related functions implemented by the processing module 710 in FIG. 7 may be implemented by the processor 810, and the related functions implemented by the transceiver module 720 may be implemented by the processor 810 controlling the transceiver 820.

Optionally, the processor 810 may be a general-purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions). For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control devices that configure time domain resources (such as base stations, terminals, or chips), execute software programs, and process software programs. data.

Optionally, the processor 810 may include one or more processors, such as one or more central processing units (CPU). In the case where the processor is a CPU, the CPU may be a single processor. The core CPU can also be a multi-core CPU.

The transceiver 820 is used to send and receive data and/or signals, and to receive data and/or signals. The transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.

The memory 830 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), read-only memory A compact disc (read-only memory, CD-ROM). The memory 830 is used to store related instructions and data.

The memory 830 is used to store program codes and data of the terminal, and may be a separate device or integrated in the processor 810.

Specifically, the processor 810 is configured to control the transceiver to perform information transmission with the terminal. For details, please refer to the description in the method embodiment, which will not be repeated here.

In a specific implementation, as an embodiment, the apparatus 800 may further include an output device and an input device. The output device communicates with the processor 810 and can display information in a variety of ways. For example, the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc. . The input device communicates with the processor 810 and can receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, or a sensor device.

It can be understood that FIG. 8 only shows a simplified design of an apparatus for configuring time domain resources. In practical applications, the device may also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals that can implement this application are within the protection scope of this application. within.

In a possible design, the device 800 may be a chip, for example, a communication chip that can be used in a terminal to implement related functions of the processor 810 in the terminal. The chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. The chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.

Optionally, when the device in this embodiment is a terminal, FIG. 9 shows a simplified structural diagram of a terminal. It is easy to understand and easy to illustrate. In Figure 9, the terminal uses a mobile phone as an example. As shown in Figure 9, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process the communication protocol and communication data, control the terminal, execute the software program, and process the data of the software program. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminals may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of description, only one memory and processor are shown in FIG. 9. In actual end products, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.

In the embodiments of the present application, the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal, and the processor with the processing function can be regarded as the processing unit of the terminal. As shown in FIG. 9, the terminal includes a transceiver unit 910 and a processing unit 920. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver, and so on. The processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on. Optionally, the device for implementing the receiving function in the transceiver unit 910 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 910 can be regarded as the sending unit, that is, the transceiver unit 910 includes a receiving unit and a sending unit. The transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit. The receiving unit may sometimes be called a receiver, receiver, or receiving circuit. The transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.

It should be understood that the transceiving unit 910 is configured to perform sending operations and receiving operations on the terminal side in the foregoing method embodiment, and the processing unit 920 is configured to perform other operations on the terminal except the transceiving operation in the foregoing method embodiment.

For example, in an implementation manner, the processing unit 920 is configured to execute the processing step 203 on the terminal side in FIG. 2. The transceiving unit 910 is configured to perform the transceiving operation in step 202 in FIG. 2, and/or the transceiving unit 910 is further configured to perform other transceiving steps on the terminal side in the embodiment of the present application.

When the device is a chip, the chip includes a transceiver unit and a processing unit. Among them, the transceiver unit may be an input/output circuit or a communication interface; the processing unit is a processor or microprocessor or integrated circuit integrated on the chip.

Optionally, when the device is a terminal, the device shown in FIG. 10 can also be referred to. As an example, the device can perform functions similar to the processor 910 in FIG. 9. In FIG. 10, the device includes a processor 1001, a data sending processor 1003, and a data receiving processor 1005. The processing module 1120 in the foregoing embodiment may be the processor 1001 in FIG. 10, and completes corresponding functions. The transceiver module 1110 in the foregoing embodiment may be the sending data processor 1003 and the receiving data processor 1005 in FIG. 10. Although the channel encoder and the channel decoder are shown in FIG. 10, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are only illustrative.

Fig. 11 shows another form of this embodiment. The processing device 1100 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The communication device in this embodiment can be used as the modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1103 and an interface 1104. The processor 1103 completes the function of the aforementioned processing module 510, and the interface 1104 completes the function of the aforementioned transceiver module 520. As another variation, the modulation subsystem includes a memory 1106, a processor 1103, and a program stored in the memory and capable of running on the processor, and the processor implements the method described in the embodiment when the program is executed. It should be noted that the memory 1106 can be nonvolatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1100, as long as the memory 1106 can be connected to the The processor 1103 is sufficient.

When the device in this embodiment is a network device, the network device may be as shown in FIG. 12, for example, the device 120 is a base station. The base station can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment. The base station 120 may include one or more DU 1201 and one or more CU 1202. CU1202 can communicate with the next-generation core network (NG core, NC). The DU 1201 may include at least one antenna 12011, at least one radio frequency unit 12012, at least one processor 12013, and at least one memory 12014. The DU 1201 part is mainly used for the transmission and reception of radio frequency signals, the conversion of radio frequency signals and baseband signals, and part of baseband processing. The CU 1202 may include at least one processor 12022 and at least one memory 12021. CU1202 and DU1201 can communicate through interfaces, where the control plane interface can be Fs-C, such as F1-C, and the user plane interface can be Fs-U, such as F1-U.

The CU 1202 part is mainly used to perform baseband processing, control base stations, and so on. The DU 1201 and the CU 1202 may be physically set together, or may be physically separated, that is, a distributed base station. The CU 1202 is the control center of the base station, which may also be called a processing unit, and is mainly used to complete baseband processing functions. For example, the CU 1202 may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.

Specifically, the baseband processing on the CU and DU can be divided according to the protocol layer of the wireless network, for example, the packet data convergence protocol (PDCP) layer and the functions of the above protocol layers are set in the CU, the protocol layer below PDCP, For example, functions such as the radio link control (RLC) layer and the medium access control (MAC) layer are set in the DU. For another example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions, and DU implements radio link control (radio link control, RLC), MAC, and physical functions. The function of the (physical, PHY) layer.

In addition, optionally, the base station 120 may include one or more radio frequency units (RU), one or more DUs, and one or more CUs. The DU may include at least one processor 12013 and at least one memory 12014, the RU may include at least one antenna 12011 and at least one radio frequency unit 12012, and the CU may include at least one processor 12022 and at least one memory 12021.

For example, in an implementation manner, the processor 12013 is configured to execute the processing step 201 on the terminal side in FIG. 2. The radio frequency unit 12012 is configured to perform the transceiving operation in step 202 in FIG. 2.

In an example, the CU1202 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network (such as a 5G network) with a single access indication, or can support wireless access networks of different access standards. Access network (such as LTE network, 5G network or other networks). The memory 12021 and the processor 12022 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board. The DU1201 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network with a single access indication (such as a 5G network), or can respectively support wireless access networks with different access standards (such as LTE network, 5G network or other network). The memory 12014 and the processor 12013 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.

As another form of this embodiment, a computer-readable storage medium is provided, and an instruction is stored thereon, and the method in the foregoing method embodiment is executed when the instruction is executed.

As another form of this embodiment, a computer program product containing instructions is provided, and when the instructions are executed, the method in the foregoing method embodiment is executed.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.

It should be understood that the processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchronous link DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).

In this application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a). For example, at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .

It should be understood that “one embodiment” or “an embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, the appearance of "in one embodiment" or "in an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the foregoing processes does not mean the order of execution. The execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present invention. The implementation process constitutes any limitation.

The terms "component", "module", "system", etc. used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor. Through the illustration, both the application running on the computing device and the computing device can be components. One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed among two or more computers. In addition, these components can be executed from various computer readable media having various data structures stored thereon. The component may be based on, for example, a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.

It should also be understood that the first, second, and various numerical numbers involved in this specification are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application.

It should be understood that the term "and/or" in this article is only an association relationship describing the associated objects, indicating that there can be three types of relationships, for example, A and/or B can mean: A alone exists, and both A and B exist. , There are three cases of B alone. Among them, the presence of A or B alone does not limit the number of A or B. Taking the existence of A alone as an example, it can be understood as having one or more A.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A method for configuring time domain resources, characterized in that it comprises:

Receive control information on the first time-frequency resource, where the control information is used to indicate the size of the time-domain resource of one or more second control resource sets CORESET, and the first time-frequency resource is the first CORESET and the first CORESET. The time-frequency resources corresponding to the search space of CORESET;

According to the control information, the size of the time domain resource occupied by the one or more second CORESETs is configured.
The method according to claim 1, wherein the control information is terminal group-level control information.
The method according to claim 1, wherein the control information is terminal-level control information.
The method according to claim 2 or 3, wherein the control information includes a bit field, and the bit field is used to indicate the time domain resource size of the one or more second CORESETs.
The method according to claim 2 or 3, wherein the control information includes a plurality of bit fields, and the plurality of bit fields are respectively used to indicate the size of the time domain resources of the plurality of second CORESETs.
The method according to claim 4, wherein the one or more second CORESETs are located in a bandwidth part BWP of the terminal.
The method according to claim 4, wherein the plurality of second CORESETs are located in at least two BWPs of the terminal.
The method according to claim 2, wherein the control information includes a bit field, the bit field is used to indicate the size of the time domain resource of the CORESET in the CORESET set, and the CORESET set includes the one or more A second CORESET, the CORESET set corresponds to at least two terminals.
The method according to any one of claims 1 to 8, wherein the time domain resource size of the first CORESET is the number of symbols occupied by the first CORESET.
A method for configuring time domain resources, characterized in that it comprises:

Determine the size of time domain resources occupied by one or more second control resource sets CORESET;

Send control information to the terminal on the first time-frequency resource, where the control information is used to indicate the size of the time-domain resource of the one or more second CORESETs, and the first time-frequency resource is the first CORESET and the second CORESET. A time-frequency resource corresponding to the search space of CORESET.
The method according to claim 10, wherein the control information is terminal group-level control information.
The method according to claim 10, wherein the control information is terminal-level control information.
The method according to claim 11 or 12, wherein the control information includes a bit field, and the bit field is used to indicate the time domain resource size of the one or more second CORESETs.
The method according to claim 11 or 12, wherein the control information includes a plurality of bit fields, and the plurality of bit fields are respectively used to indicate the size of time domain resources of the plurality of second CORESETs.
The method according to claim 13, wherein the one or more second CORESETs are located in a bandwidth part BWP of the terminal.
The method according to claim 13, wherein the plurality of second CORESETs are located in at least two BWPs of the terminal.
The method according to claim 11, wherein the control information includes a bit field, the bit field is used to indicate the size of the time domain resource of the CORESET in the CORESET set, and the CORESET set includes the one or more A second CORESET, the CORESET set corresponds to at least two terminals.
The method according to any one of claims 10 to 17, wherein the time domain resource size of the second CORESET is the number of symbols occupied by the second CORESET.
A device characterized by comprising a module for implementing the method according to any one of claims 1 to 9 or any one of claims 10 to 18.
An apparatus, characterized in that it comprises a processor and a memory, and instructions are stored in the memory. When the processor executes the instructions, the device executes any one of claims 1 to 9 or 10 to 18. The method of any one of 18.
A computer-readable storage medium, characterized in that, the computer-readable storage medium stores instructions, and when the instructions are executed, the implementation is as defined in any one of claims 1 to 9 or any one of 10 to 18. The method described.
A computer program product, when it runs on a processor, causes the processor to execute the method according to any one of claims 1 to 9 or any one of claims 10 to 18.