CN113365350A

CN113365350A - Information indication method, device, equipment and storage medium

Info

Publication number: CN113365350A
Application number: CN202010150588.4A
Authority: CN
Inventors: 周娇; 何文林; 陈晶晶; 刘建华; 徐芙蓉
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2021-09-07
Anticipated expiration: 2040-03-06
Also published as: CN113365350B

Abstract

The invention discloses an information indication method, an information indication device, information indication equipment and a storage medium. Wherein, the method comprises the following steps: transmitting first Downlink Control Information (DCI) based on a Physical Downlink Control Channel (PDCCH); the first DCI is scrambled based on a group identity for instructing a User Equipment (UE) of a corresponding group to receive target information on a designated Physical Downlink Shared Channel (PDSCH) resource. The embodiment of the invention can realize that the UE in the group shares the PDSCH resource to receive the target information, thereby reducing the expense of service resources. Due to the fact that the service resource overhead is reduced, the scheduling time delay of service information issued by the base station side can be effectively reduced for the scene with limited service resources.

Description

Information indication method, device, equipment and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information indicating method, apparatus, device, and storage medium.

Background

The 5G (fifth generation mobile communication technology) system adopts a multi-beam design, and a series of operations such as beam measurement, beam reporting, beam indication and the like are required between a base station and User Equipment (UE) to ensure that the two establish a communication link in a better beam-to-beam direction. Specifically, the UE sends a beam measurement report to the base station based on the beam measurement, the base station decides a camping beam of the corresponding UE based on the beam measurement report of the UE, and issues a specific terminal Physical Downlink Control Channel (UE specific PDCCH) to the UE, and the UE obtains a beam ID (number) indication MAC CE (media access Control layer Control element) at a PDSCH resource position indicated by the PDCCH (Physical Downlink Control Channel). That is, the UE needs to complete decoding of specific downlink control information (UE-specific DCI) to obtain the resource location of the PDSCH, and then obtains the beam ID indication MAC CE on the corresponding PDSCH resource, which results in high signaling overhead and difficulty in meeting the delay requirement of information indication in a large-capacity scenario.

Disclosure of Invention

In view of this, embodiments of the present invention provide an information indicating method, apparatus, device and storage medium, which aim to reduce resource overhead and reduce time delay of information indication, and meet indication requirements of different UEs in a cell.

The technical scheme of the embodiment of the invention is realized as follows:

the embodiment of the invention provides an information indication method, which is applied to a base station and comprises the following steps:

transmitting first Downlink Control Information (DCI) based on a Physical Downlink Control Channel (PDCCH);

wherein the first DCI is scrambled based on a group identity and is used to instruct a User Equipment (UE) of a corresponding group to receive target information on a designated Physical Downlink Shared Channel (PDSCH) resource.

The embodiment of the invention also provides an information indication method which is applied to the UE and comprises the following steps:

receiving first DCI sent by a PDCCH;

determining PDSCH resources based on the first DCI and receiving target information;

wherein the first DCI is scrambled based on a group identity for instructing UEs of a corresponding group to receive the target information on a designated PDSCH resource.

An embodiment of the present invention further provides an information indicating apparatus, which is applied to a base station, and the apparatus includes:

a transmission module for transmitting the first DCI based on the PDCCH;

wherein the first DCI is scrambled based on a group identity for indicating that UEs of a corresponding group receive target information on a designated PDSCH resource.

The embodiment of the invention also provides an information indicating device, which is applied to the UE and comprises the following components:

a receiving module, configured to receive a first DCI sent by a PDCCH; determining the PDSCH resources indicated by the first DCI and receiving target information in the corresponding PDSCH resources according to the group identifier;

An embodiment of the present invention further provides a base station, including: a processor and a memory for storing a computer program capable of running on the processor, wherein the processor, when running the computer program, is configured to perform the steps of the method described in the base station side of the embodiments of the present invention.

An embodiment of the present invention further provides a UE, including: a processor and a memory for storing a computer program capable of running on the processor, wherein the processor, when running the computer program, is configured to perform the steps of the method described in the embodiment of the present invention on the UE side.

The embodiment of the present invention further provides a storage medium, where the storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the method at the base station side or the UE side in the embodiment of the present invention.

According to the technical scheme provided by the embodiment of the invention, the first DCI is sent through the PDCCH, and the first DCI is scrambled based on the group identifier and used for indicating the UE of the corresponding group to receive the target information at the appointed PDSCH resource, so that the UE in the group can share the PDSCH resource receiving target information, and the service resource overhead is reduced. Due to the fact that the service resource overhead is reduced, the scheduling time delay of service information issued by the base station side can be effectively reduced for the scene with limited service resources.

Drawings

Fig. 1 is a schematic flowchart of a base station side information indication method according to an embodiment of the present invention;

FIG. 2 is a flowchart illustrating a UE-side information indication method according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating a first exemplary information indication method according to the present invention;

FIG. 4 is a flowchart illustrating an information indication method according to a second embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an information indicating apparatus applied to a base station according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an information indicating apparatus applied to a UE according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating a base station according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a UE according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In the related art, for a large-capacity scenario, for example, during the operation of a high-speed rail, several hundreds of users often perform beam (beam) switching at the same time, the average frequency is once per second, the UE specific PDCCH is used to send the resource location of the control signaling indicator PDSCH MAC CE, the overhead is very high, and the waiting time delay is too long. If the CELL special PDCCH (CELL level physical downlink control channel) is adopted to reduce the overhead and the time delay, the UE cannot be distinguished, and the beam IDs configured by all the UE are the same and are inconsistent with the actual situation.

Based on this, in various embodiments of the present invention, the same control signaling, or different control signaling and the same PDSCH resource are issued for terminal groups (groups) with the same or similar behaviors, so as to reduce the overhead of the control signaling and the traffic channel.

An embodiment of the present invention provides an information indication method, which applies a base station, and as shown in fig. 1, the method includes:

step 101, transmitting a first DCI based on a PDCCH.

Here, the first DCI is scrambled based on a group identity to instruct UEs of a corresponding group to receive target information on a designated PDSCH resource. The group identity indicates a group number (group ID) to which the UE belongs. In practical applications, the group identifier is a Radio Network Temporary Identity (RNTI) generated based on the group ID. In the following description, the group identity is also called groupID-RNTI.

To obtain the group identification, in an embodiment, the method further comprises:

determining a group number (group ID) to which the UE belongs based on a target attribute of the UE;

a group identification is generated based on the group ID.

Here, the target attribute includes at least one of: location of the UE, Reference Signal Receiving Power (RSRP), and terminal type. In practical application, the base station may acquire attributes such as a position, RSRP, and a terminal type of each UE, and divide each UE into different groups according to at least one of the attributes such as the position, RSRP, and terminal type of the UE. For example, UEs with similar RSRP are divided into the same group. And the base station generates a corresponding group ID-RNTI according to the group ID of each group.

In practical application, the base station further sends a group identifier to the UEs of the corresponding group. For example, the base station sends a groupID-RNTI to the UEs of the corresponding group through RRC (Radio Resource Control) signaling.

As such, the first DCI may be scrambled based on the group identification, such that UEs of the same group may descramble the first DCI based on the corresponding group identification.

In the embodiment of the present invention, the first DCI is obtained by invoking a target DCI format (format) and scrambling the target DCI format based on a group identifier. Here, the target DCI format is used to indicate resource allocation information of PDSCH resources of target information.

In practical applications, the target information may be used to indicate a beam direction of the PDSCH, for example, the target information is a Transmission Configuration Indicator (TCI) state information. Since UEs of the same group can share the beam direction, i.e., QCL (Quasi co-located antenna) can be configured through TCI state information, indicating the same beam direction. Here, the TCI state information may be configured by the RRC layer of the base station, and the TCI state ID is activated by the MAC CE to indicate the QCL relationship. In other embodiments, the target information may also be power control information or the like that can be shared by UEs of the same group.

In an embodiment, the target information is used for indicating a beam direction of a PDSCH, and before the first DCI is transmitted based on the PDCCH, the method includes:

determining target information of the UE in the same group and allocating PDSCH resources for transmitting the target information;

and calling a target DCI format and scrambling the target DCI format based on the group identifier to obtain the first DCI.

Here, the target information is shared by UEs of the same group, and the target DCI format is used to indicate resource allocation information of PDSCH resources of the target information.

In practical application, the target information may be TCI state information, and the beam direction of the PDSCH is indicated by the TCI state information, so that UEs in the same group may share PDSCH resources, and obtain the TCI state information on the shared PDSCH resources, thereby implementing beam switching.

In an embodiment, the first DCI is transmitted based on a PDCCH, including at least one of:

transmitting a first DCI based on a Common Search Space (CSS) of the PDCCH;

a first DCI is transmitted based on a special search space (USS) of a PDCCH.

Here, the CSS refers to a search space that all UEs in a cell can search, and identification scrambling based on a cell ID (cell number) may be employed without distinguishing the UEs. For example, SI-RNTI (system message RNTI)/P-RNTI (paging RNTI)/RA-RNTI (random access RNTI)/TC-RNTI (temporary cell RNTI) and the like can be used for scrambling. The USS refers to a UE-specific search space, and may be scrambled with an identity based on a UE ID, for example, with a C-RNTI (cell RNTI).

Here, the first DCI is obtained by invoking a target DCI format and scrambling the target DCI format based on the group identity, wherein the target DCI format is used for indicating resource allocation information of PDSCH resources of the target information.

In an embodiment, the first DCI is sent based on the CSS of the PDCCH, that is, each UE in the cell may receive the first DCI by using a Control Channel Element (CCE) in a common search space, that is, multicast of the PDCCH that sends the first DCI in the cell is implemented, which may save the overhead of PDCCH resources, and save the overhead of PDSCH resources, and reduce time delay.

In an embodiment, when the first DCI is transmitted based on the USS of the PDCCH, the resource allocation information indicated by the target DCI format is a reserved resource block, that is, a time domain resource and a frequency resource reserved by the reserved resource block, where the reserved resource block is used for scheduling the target information. In this way, although each UE uses different PDCCH resources, the target DCI format indicates a shared reserved resource block, so that multicast of the reserved resource block of the scheduling target information in UEs in the same group can be achieved, and UEs in the group can share PDSCH resources to receive the target information, thereby reducing service resource overhead. Due to the fact that the service resource overhead is reduced, the scheduling time delay of service information issued by the base station side can be effectively reduced for the scene with limited service resources.

An embodiment of the present invention further provides an information indication method, which is applied to a UE, and as shown in fig. 2, the method includes:

step 201, receiving a first DCI transmitted by a PDCCH;

here, the first scrambling is based on a group identity of a group to which the UE belongs, for instructing the UEs of the corresponding group to receive the target information at the designated PDSCH resource.

In practical applications, for a first DCI transmitted based on a PDCCH CSS, the UE may receive the first DCI in a common search space. For a first DCI transmitted based on a PDCCH-based USS, a UE may receive the first DCI in a specific search space.

Step 202, according to the group identifier, determining the PDSCH resources indicated by the first DCI and receiving the target information in the corresponding PDSCH resources.

Here, the UE may descramble the first DCI according to the group identifier, and then determine the PDSCH resources indicated by the first DCI and receive the target information in the corresponding PDSCH resources.

To descramble the first DCI according to the group identity, in an embodiment, the method further comprises:

and receiving the group identification of the UE determined by the base station.

In practical application, the UE may obtain the corresponding group identifier through an RRC signaling sent by the base station.

In an embodiment, the determining, according to the group identifier, the PDSCH resources indicated by the first DCI and receiving the target information in the corresponding PDSCH resources includes:

descrambling the first DCI based on the group identifier to obtain information carried by the target DCI format;

and determining the resource allocation information of the PDSCH resources according to the information carried by the target DCI format, and receiving the target information based on the corresponding resource allocation information.

In practical applications, the target information may be TCI state information that may be shared by UEs in the same group and used for indicating a beam direction of the PDSCH, or may be power control information that may be shared by UEs in the same group.

In an embodiment, the target information is used for indicating a beam direction of a PDSCH, and the method further includes: determining a beam direction of the PDSCH based on the target information to implement beam switching.

Therefore, on the premise of saving PDSCH resources, the beam switching of the UE in the same group can be realized quickly, and the application requirement of a large-capacity scene is met.

The present invention will be described in further detail with reference to the following application examples.

The first application embodiment:

as shown in fig. 3, in the first application embodiment, the information indication method includes:

step 301, grouping the terminals to generate a group identifier.

In practical applications, the base station may acquire the location, RSRP, and terminal type of each UE through RRC signaling, and group each UE based on at least one of the location, RSRP, and terminal type of the UE, for example, divide UEs with similar RSRP into the same group. And the base station generates a corresponding group ID-RNTI according to the group ID of each group.

Step 302, sending the group identification.

And the base station sends groupID-RNTI to the UE of the corresponding group through RRC signaling.

Step 303, determining the TCI state information of the same group of terminals.

In practical application, the base station receives the receiving capability reported by each UE, and determines the same TCI state information for the UEs in the same group to indicate that the UEs in the same group share the same beam direction.

Step 304, a target DCI format is called and scrambled based on the group identifier to obtain a first DCI.

In practical applications, the target DCI format of this embodiment is newly added in the CSS, and the target DCI format is used to indicate resource allocation information of PDSCH resources of the TCI state information. And scrambling the target DCI format based on the group identifier to obtain the first DCI.

Step 305, transmitting a first DCI based on the CSS of the PDCCH.

Here, the first DCI is transmitted through the CSS, which can save overhead of control signaling and overhead of PDSCH resources and effectively reduce delay of control signaling.

In step 306, the common search space receives a first DCI.

For a first DCI transmitted based on a PDCCH CSS, the UE may receive the first DCI in a common search space.

And 307, descrambling the first DCI according to the group identifier, determining the PDSCH resource indicated by the first DCI, and receiving the target information in the corresponding PDSCH resource.

In practical application, descrambling the first DCI based on the group identifier to obtain information carried by a target DCI format; and determining the resource allocation information of the PDSCH resources according to the information carried by the target DCI format, and receiving the target information based on the PDSCH resources where the corresponding resource allocation information is located.

In the embodiment of the present application, UEs in the same group in a cell may share a PDCCH to receive resource allocation information of the TCI state information, which may effectively reduce control signaling overhead and time delay, and reduce PDSCH resource overhead. And the UE of different groups in the cell can be distinguished based on the group identification, so that the accurate control requirement that the UE of different groups sets different beam directions can be met.

Application example two:

as shown in fig. 4, in the second application embodiment, the information indication method includes:

step 401, grouping the terminals to generate a group identifier.

Step 402, sending a group identification.

The above steps 401 and 402 may specifically refer to the above steps 301 and 302, and are not described herein again.

And step 403, determining the TCI state information of the same group of terminals.

In practical applications, for MAC CEs transmitted based on USS, each MAC CE is often transmitted on PDSCH after being concatenated and divided in the MAC layer. This results in MAC CEs indicating TCI state information being mixed with other traffic channel data. In the embodiment of the invention, the MAC CE indicating the TCI state information by each UE is independently sent at the MAC layer, and the UEs in the same group share the same TCI state information so as to indicate that the UEs in the same group share the same beam direction.

Step 404, a target DCI format is called and scrambled based on the group identifier to obtain a first DCI.

In practical applications, the target DCI format of this embodiment is newly added in the USS, and the target DCI format is used to indicate resource allocation information of PDSCH resources of TCI state information. And scrambling the target DCI format based on the group identifier to obtain the first DCI.

Step 405, transmitting the first DCI based on the USS of the PDCCH.

Here, when the first DCI is transmitted through the USS, since UEs in the same group share the same TCI state information, the resource allocation information indicated by the target DCI format uses a reserved resource block, and the reserved resource block is used for scheduling the target information. Therefore, the shared reserved resource block scheduling target information can save the expense of PDSCH resources and can effectively reduce the scheduling time delay of service information issued by the base station side.

At step 406, a specific search space receives a first DCI.

For a first DCI transmitted based on a PDCCH-based USS, a UE may receive the first DCI in a specific search space.

Step 407, descrambling the first DCI according to the group identifier, and further determining the PDSCH resource indicated by the first DCI and receiving the target information in the corresponding PDSCH resource.

In the embodiment of the application, UEs in the same group in a cell may share the PDSCH to receive the TCI state information, so that the cost of PDSCH resources and the scheduling delay of issuing service information may be reduced. And the UE of different groups in the cell can be distinguished based on the group identification, so that the accurate control requirement that the UE of different groups sets different beam directions can be met.

In order to implement the method according to the embodiment of the present invention, an information indicating apparatus applied to a base station is further provided in the embodiment of the present invention, where the information indicating apparatus corresponds to the information indicating method on the base station side, and each step in the embodiment of the information indicating method on the base station side is also completely applicable to the embodiment of the information indicating apparatus.

As shown in fig. 5, the information indicating apparatus includes: a transmitting module 501, configured to transmit a first DCI based on a PDCCH; wherein the first DCI is scrambled based on a group identity for indicating that UEs of a corresponding group receive target information on a designated PDSCH resource.

In one embodiment, the sending module 501 is configured to at least one of:

transmitting first DCI based on CSS of PDCCH;

the first DCI is transmitted based on the USS of the PDCCH.

In one embodiment, the information indicating apparatus further comprises: an identity determination module 502 for:

determining a group ID to which the UE belongs based on the target attribute of the UE;

generating a group identification based on the group ID;

wherein the target attribute comprises at least one of: location of UE, RSRP, and terminal type.

In an embodiment, the sending module 501 is further configured to: and sending the group identification to the UE of the corresponding group.

In one embodiment, the information indicating apparatus further includes: a first processing module 503, configured to:

calling a target DCI format and scrambling the target DCI format based on a group identifier to obtain the first DCI;

the target information is shared by the UEs in the same group, and the target DCI format is used for indicating the resource allocation information of the PDSCH resources of the target information.

In practical applications, the sending module 501, the identification determining module 502, and the first processing module 503 may be implemented by a processor in the information indicating apparatus. Of course, the processor needs to run a computer program in memory to implement its functions.

In order to implement the method according to the embodiment of the present invention, an information indicating apparatus is further provided in the embodiment of the present invention, and is applied to a UE, where the information indicating apparatus corresponds to the information indicating method on the UE side, and each step in the embodiment of the information indicating method on the UE side is also completely applicable to the embodiment of the information indicating apparatus.

As shown in fig. 6, the information indicating apparatus includes: a receiving module 601, configured to receive a first DCI sent by a PDCCH; determining the PDSCH resources indicated by the first DCI and receiving target information in the corresponding PDSCH resources according to the group identifier; wherein the first DCI is scrambled based on a group identity for instructing UEs of a corresponding group to receive the target information on a designated PDSCH resource.

In an embodiment, the receiving module 601 is specifically configured to at least one of:

receiving first DCI based on CSS of PDCCH;

the first DCI is received based on the USS of the PDCCH.

In an embodiment, the receiving module 601 is further configured to:

In an embodiment, the target information is used for indicating a beam direction of a PDSCH, and the information indicating apparatus further includes: a second processing module 602, configured to determine a beam direction of the PDSCH based on the target information to implement beam switching.

In practical applications, the receiving module 601 and the second processing module 602 may be implemented by a processor in the information indicating apparatus. Of course, the processor needs to run a computer program in memory to implement its functions.

It should be noted that: in the information indicating apparatus provided in the above embodiment, when performing information indication, only the division of each program module is illustrated, and in practical applications, the above processing may be distributed to different program modules according to needs, that is, the internal structure of the apparatus may be divided into different program modules to complete all or part of the above-described processing. In addition, the information indicating apparatus and the information indicating method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.

Based on the hardware implementation of the program module, and in order to implement the method according to the embodiment of the present invention, the embodiment of the present invention further provides a base station. Fig. 7 shows only an exemplary structure of the base station, not the entire structure, and a part of or the entire structure shown in fig. 7 may be implemented as necessary.

As shown in fig. 7, a base station 700 according to an embodiment of the present invention includes: at least one processor 701, memory 702, user interface 703, and at least one network interface 704. The various components in the base station 700 are coupled together by a bus system 705. It will be appreciated that the bus system 705 is used to enable communications among the components. The bus system 705 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various busses are labeled in figure 7 as the bus system 705.

The user interface 703 may include, among other things, a display, a keyboard, a mouse, a trackball, a click wheel, a key, a button, a touch pad, or a touch screen.

The memory 702 in embodiments of the present invention is used to store various types of data to support the operation of the base station. Examples of such data include: any computer program for operation on a base station.

The information indication method disclosed by the embodiment of the invention can be applied to the processor 701 or implemented by the processor 701. The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the information indication method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The Processor 701 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 701 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 702, and the processor 701 may read the information in the memory 702 and complete the steps of the information indication method provided by the embodiments of the present invention in combination with the hardware thereof.

In an exemplary embodiment, the base station may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), FPGAs, general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.

Based on the hardware implementation of the program module, and in order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a UE. Fig. 8 illustrates only an exemplary structure of the UE, not the entire structure, and a part or the entire structure illustrated in fig. 8 may be implemented as necessary.

As shown in fig. 8, a UE 800 according to an embodiment of the present invention includes: at least one processor 801, memory 802, a user interface 803, and at least one network interface 804. The various components in the UE 800 are coupled together by a bus system 805. It will be appreciated that the bus system 805 is used to enable communications among the components of the connection. The bus system 805 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 805 in fig. 8.

The user interface 803 may include, among other things, a display, a keyboard, a mouse, a trackball, a click wheel, a key, a button, a touch pad, or a touch screen.

The memory 802 in the embodiments of the present invention is used to store various types of data to support the operation of the UE. Examples of such data include: any computer program for operating on a UE.

The information indication method disclosed by the embodiment of the invention can be applied to the processor 801 or implemented by the processor 801. The processor 801 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the information indication method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 801. The Processor 801 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Processor 801 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 802, and the processor 801 reads the information in the memory 802, and performs the steps of the information indication method provided by the embodiments of the present invention in combination with the hardware thereof.

In an exemplary embodiment, the UE 800 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the aforementioned methods.

It will be appreciated that the

memories

702, 802 can be either volatile or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The described memory for embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In an exemplary embodiment, the embodiment of the present invention further provides a storage medium, that is, a computer storage medium, which may specifically be a computer readable storage medium, for example, including a memory 702 storing a computer program, where the computer program is executable by a processor 701 of a base station to complete the steps of the base station side information indication method according to the embodiment of the present invention. As another example, a memory 802 storing a computer program may be included, and the computer program may be executed by the processor 801 of the UE to complete the steps of the UE-side information indication method according to the embodiment of the present invention. The computer readable storage medium may be a ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM, among others.

It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In addition, the technical solutions described in the embodiments of the present invention may be arbitrarily combined without conflict.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An information indication method applied to a base station, the method comprising:

the first DCI is scrambled based on a group identifier and is used for indicating User Equipment (UE) of a corresponding group to receive target information on a designated Physical Downlink Shared Channel (PDSCH) resource.

2. The method of claim 1, wherein the sending the first DCI based on the PDCCH comprises at least one of:

transmitting a first DCI based on a Common Search Space (CSS) of a PDCCH;

the first DCI is transmitted based on a PDCCH-based special search space USS.

3. The method of claim 1, further comprising:

determining a group number group ID to which the UE belongs based on the target attribute of the UE;

generating a group identification based on the group ID;

wherein the target attribute comprises at least one of: location of UE, reference signal received power RSRP, and terminal type.

4. The method of claim 1, further comprising:

and sending the group identification to the UE of the corresponding group.

5. The method of claim 1, wherein the target information is used for indicating a beam direction of the PDSCH, and wherein before the first DCI is transmitted based on the PDCCH, the method comprises:

6. An information indication method applied to a UE (user equipment), the method comprising:

receiving first DCI sent by a PDCCH;

determining the PDSCH resources indicated by the first DCI and receiving target information in the corresponding PDSCH resources according to the group identifier;

7. The method of claim 6, wherein the receiving the first DCI transmitted by the PDCCH comprises at least one of:

receiving first DCI based on CSS of PDCCH;

the first DCI is received based on the USS of the PDCCH.

8. The method of claim 6, further comprising:

9. The method of claim 6, wherein the determining the PDSCH resource indicated by the first DCI and receiving target information in the corresponding PDSCH resource according to a group identifier comprises:

descrambling the first DCI based on the group identifier to obtain information carried by a target DCI format;

10. The method of claim 6, wherein the target information is used for indicating a beam direction of the PDSCH, and wherein the method further comprises:

determining a beam direction of the PDSCH based on the target information to implement beam switching.

11. An information indication apparatus applied to a base station, the apparatus comprising:

a transmission module for transmitting the first DCI based on the PDCCH;

12. An information indication apparatus applied to a UE, the apparatus comprising:

13. A base station, comprising: a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor, when executing the computer program, is adapted to perform the steps of the method of any of claims 1 to 5.

14. A UE, comprising: a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor, when executing the computer program, is adapted to perform the steps of the method of any of claims 6 to 10.

15. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the steps of the method of any one of claims 1 to 5 or 6 to 10.