CN114650120A

CN114650120A - Information determination method and device and communication equipment

Info

Publication number: CN114650120A
Application number: CN202011495398.2A
Authority: CN
Inventors: 吴凯; 李娜
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2022-06-21
Also published as: WO2022127702A1

Abstract

The application discloses an information determining method, an information determining device and communication equipment, wherein the method comprises the steps that the communication equipment determines a first Downlink Control Information (DCI) format according to first information; the first information is determined according to at least one of: bit number information of first DCI corresponding to the first DCI format; and referring to bit number information of the second DCI corresponding to the DCI format. In the application, bit number information corresponding to the DCI format is determined, and then the corresponding reserved bit number, information domain and the like are determined according to the bit number information, so that larger DCI can be avoided, the obtained DCI can be guaranteed to be the same in size, and the transmission performance and the coverage of the PDCCH can be effectively improved on the premise of not improving the complexity of PDCCH receiving and decoding.

Description

Information determination method and device and communication equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information determining method, an information determining device, and a communication device.

Background

In a New Radio (NR) system, two formats of Downlink Control Information (DCI) of a PDCCH that a User Equipment (User Equipment, UE) needs to monitor are DCI format1-0 and DCI format 0-0, respectively. The DCI format1-0 is a downlink PDCCH format, and may be scrambled by different Radio Network Temporary Identifiers (RNTIs) and used for different purposes, where the DCI formats 1-0 and/or 0-0 scrambled by different RNTIs have the same size, that is, the DCI bit numbers are the same. However, the number of reserved bits in DCI formats scrambled by different RNTIs is different. The reserved bit number does not transmit effective information, and the size of the DCI can be reduced by deleting the reserved bit number so as to improve the transmission performance of the PDCCH and the PDCCH coverage.

However, if the PDCCH is compressed, the reserved bit number in the DCI format of the PDCCH scrambled by different RNTIs is directly deleted, so that the DCI size is different, and the complexity of PDCCH reception and decoding is improved.

Disclosure of Invention

The embodiment of the application provides an information determination method, an information determination device, a terminal and network side equipment, and can solve the problem that the performance and coverage of a PDCCH are limited.

In a first aspect, an information determining method is provided, including:

the communication equipment determines a first Downlink Control Information (DCI) format according to the first information;

wherein the first information is determined according to at least one of:

bit number information of first DCI corresponding to the first DCI format;

and referring to bit number information of the second DCI corresponding to the DCI format.

In a second aspect, an information determining apparatus is provided, including:

a first determining module, configured to determine a first downlink control information DCI format according to the first information;

wherein the first information is determined according to at least one of:

bit number information of first DCI corresponding to the first DCI format;

In a third aspect, there is provided a communication device, the terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect.

In a fourth aspect, there is provided a readable storage medium on which is stored a program or instructions which, when executed by a processor, carries out the steps of the method according to the first aspect.

In a fifth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the steps of the method according to the first aspect.

In this embodiment of the present application, the first DCI format is determined according to at least one of bit number information of a first DCI corresponding to the first DCI format and bit number information of a second DCI corresponding to the reference DCI format, for example, a reserved bit number and an information field in the first DCI format are determined. That is, in the embodiment of the present application, bit number information corresponding to a DCI format is determined, and then a corresponding reserved bit number, an information field, and the like are determined according to the bit number information, so that a larger DCI can be avoided, and it can be ensured that the obtained DCI is the same in size, and thus transmission performance and coverage of a PDCCH can be effectively improved on the premise of not improving complexity of PDCCH reception and decoding.

Drawings

Fig. 1 is a block diagram showing a network system to which an embodiment of the present application is applicable;

FIG. 2 is a schematic flow chart diagram illustrating an information determination method according to an embodiment of the present application;

FIG. 3 is a block diagram of an information determination apparatus according to an embodiment of the present application;

fig. 4 is a block diagram showing a configuration of a communication apparatus according to an embodiment of the present application;

fig. 5 is a block diagram showing a terminal according to an embodiment of the present application;

fig. 6 shows a block diagram of a network device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably in embodiments of the present application, and the described techniques may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, and the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation) NR systems^thGeneration, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Computer (Tablet Computer), a Laptop Computer (Laptop Computer) or called as a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, and the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network device, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receive Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but the specific type of the Base Station is not limited.

The information determining method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

As shown in fig. 2, an embodiment of the present application provides an information determining method, including:

step 201: the communication equipment determines a first downlink control information DCI format according to the first information.

Wherein the first information is determined according to at least one of:

bit number information of first DCI corresponding to the first DCI format;

The bit number information includes at least one of a total bit number of the DCI, a bit number of an information field of the DCI, and a reserved bit number of the DCI. The communication equipment is a terminal or network side equipment.

In this embodiment, the DCI format includes at least one of a size (total number of bits) of the DCI, information fields included in the DCI, a number of bits of each information field, an order of the information fields, and a reserved number of bits. For example, the size of DCI, the number of reserved bits, and the number of bits of at least one information field are included. The reference DCI format is a network-configured DCI format or a predefined DCI format, and the predefined DCI format may be DCI format1-0 or DCI format 0-0. The DCI format1-0 is a downlink PDCCH format, and may be scrambled by different Radio Network Temporary Identifiers (RNTIs) and used for different purposes; the DCI format 0-0 is an uplink PDCCH format, can be scrambled by a Temporary Cell radio network Temporary identifier (TC-RNTI), and is used for scheduling retransmission of the message 3(MSG 3).

The size of the first DCI corresponding to the first DCI format may be network configured or predefined.

Optionally, the first information is determined according to a difference N between the total bit number of the first DCI and the total bit number of the second DCI.

Optionally, the information determining method according to the embodiment of the present application further includes:

the communication equipment determines a difference value N between the total bit number of the first DCI and the total bit number of the second DCI according to indication information of network side equipment; the communication device here may be embodied as a terminal. For example, the network side device indicates N by a System Information Block (SIB).

Or, the communication device determines a difference N between the total bit number of the first DCI and the total bit number of the second DCI according to the reserved bit number in the PDCCH, where the format of the DCI carried by the PDCCH is the reference DCI format, and the reserved bit number in the PDCCH is determined according to the reserved bit number in at least one PDCCH scrambled by a first radio network temporary identifier RNTI.

Optionally, the PDCCH is a PDCCH of a common search space.

The first RNTI may include at least one of:

random Access RNTI (RA-RNTI), message B RNTI (MSG-B-RNTI), System Information RNTI (System Information RNTI, SI-RNTI), Paging RNTI (Paging RNTI, P-RNTI), Temporary Cell RNTI (Temporary Cell RNTI, TC-RNTI), Cell RNTI (Cell RNTI, C-RNTI).

Optionally, when the reserved bit number in the PDCCH is determined according to the reserved bit number in one PDCCH, the N is a maximum value or a minimum value of the reserved bit number in the PDCCH;

or, when the reserved bit number in the PDCCH is determined according to the reserved bit number in at least two PDCCHs, N is an average value, a maximum value, or a minimum value of the reserved bit number in the at least two PDCCHs.

As a first optional implementation manner, in a case that N is less than or equal to a reserved bit number M in the PDCCH, the reserved bit number in the first DCI format is M-N.

Optionally, in this implementation, the number of bits of the first information field in the first DCI format is the same as the number of bits of the first information field in the reference DCI format, where the first information field refers to an information field except for the reserved number of bits.

As a second optional implementation manner, in a case that N is greater than a reserved bit number M in the PDCCH, the reserved bit number in the first DCI format is 0.

Optionally, the first information includes: a number of bits of an information field in the reference DCI format;

the communication device determines a first Downlink Control Information (DCI) format according to the first information, and the method comprises the following steps:

and the communication equipment determines the bit number of the information field in the first DCI format according to the bit number of the information field in the reference DCI format.

In the first optional implementation manner, the number of bits of the information field in the first DCI format is the same as the number of bits of the information field in the reference DCI format.

In the second optional implementation manner, the number of bits of the first information field in the first DCI format is smaller than the number of bits of the first information field in the reference DCI format;

the determining, by the communication device, the bit number of the information field in the first DCI format according to the bit number of the information field in the reference DCI format includes:

determining the bit number of at least one first information field in the first DCI format according to a network indication or a first sequence;

wherein the number of bits of the first information field in the first DCI format is smaller than the number of bits of the first information field in the reference DCI format, and the first order is predefined or network configured. Optionally, the number of bits of the first information field is predefined or network configured. For example, the bit number of the first information field may be 0, and at this time, the content corresponding to the first information field is preset or configured by the network.

Optionally, the number of the first information fields is determined according to a preset rule;

wherein the preset rule comprises: after s first information fields are determined, if the total bit number of the first DCI is smaller than or equal to the difference value between the total bit number of the second DCI and N, determining that the number of the first information fields is s.

Optionally, the first information field may be all information fields except for the reserved bits in the first DCI number, or may be a partial information field. Specifically, the network side device indicates at least one first information field. Or, the terminal determines each first information field one by one according to the first sequence. The bit number of the first information field is less than or equal to the bit number of the corresponding first information field in the reference DCI format.

In this embodiment, the first information field may be understood as a compressed information field, and whether each information field is compressed or not may be predefined or configured for a network. After compressing the s-th information domain according to the first sequence, if the size of the first DCI is smaller than or equal to the difference value between the size of the second DCI and N, the network side equipment stops compressing the remaining W-s information domains; s is more than or equal to 1 and less than W, wherein W represents the number of all or part of information fields except reserved bits in the first DCI format.

The compressing means determining a total number of bits and/or a number of bits of an information field in the first DCI format, such that the total number of bits in the first DCI format is less than the total number of bits of a reference DCI format, and/or the number of bits of the information field in the first DCI format is less than the number of bits of the information field in the reference DCI format.

In addition, in this second optional implementation manner, the bit number of the information fields except for the first information field in the first DCI format is the same as the bit number of the corresponding information field in the reference DCI format.

Optionally, the first information domain satisfies at least one of:

a first scheduling granularity is a multiple of a second scheduling granularity, a is an integer greater than 1, the first scheduling granularity is a scheduling granularity corresponding to a first information field, and the second scheduling granularity is a scheduling granularity corresponding to a corresponding first information field in the reference DCI format; for example, a ═ 2, 4, or 8; when the scheduling granularity is doubled, the bit number of the corresponding information domain can be reduced by 1 bit, and the scheduling granularity can be at least one resource block RB;

the first option number is smaller than a second option number, the first option number is the option number corresponding to the compressed first information field, and the second option number is the option number corresponding to the corresponding first information field in the reference DCI format;

the content of the compressed first information domain is the content configured by the network equipment or the preset content.

For example, the first information field is a frequency domain resource allocation field, and the scheduling granularity of the frequency domain resource allocation field in the first DCI format is a times of the scheduling granularity of the frequency domain resource allocation field in the reference DCI format.

For another example, the first information field includes at least one of a time domain resource allocation field, a Redundancy Version (RV), a PUCCH resource indicator (PUCCH resource indicator), a Modulation And Coding Scheme (MCS), And a PDSCH-to-HARQ _ feedback timing indicator (PDSCH-to-HARQ _ feedback timing indicator), And the number of options of the network configuration is smaller than the number of options corresponding to the corresponding first information field in the reference format for the first information field.

Here, the smaller the number of options, the smaller the number of bits required. For example, referring to the DCI format, the time domain resource allocation field includes 4 bits, that is, corresponds to 16 options, and in the first DCI format, the number of time domain resource allocation options of the scheduled PDSCH or PUSCH may be limited to 8, so that the corresponding number of bits required for time domain resource allocation is 3, or the number of time domain resource allocation options of the scheduled PDSCH or PUSCH may be limited to 4, so that the corresponding number of bits required for time domain resource allocation is 2.

For another example, the compressed first information field is a mapping from a Frequency Hopping indication (Frequency Hopping Flag) or a Virtual Resource Block (VRB) to a Physical Resource Block (PRB), and the content of the first information field is the content configured by the network device or preset content, for example, the Frequency Hopping indication is a default Frequency Hopping or non-Frequency Hopping configured by the network device.

The information determination method of the present application will be described below with reference to specific examples.

Example 1:

the first DCI format is determined according to the reference DCI format and a size (size) of the first DCI. The reference DCI format is a network configured DCI format or a default format, such as DCI format1-0 or DCI format 0-0. The size of the first DCI is network configured, or the size of the first DCI is determined by a DCI size of a reference DCI format, for example, N bits are subtracted from the reference DCI size to obtain the size of the first DCI. I.e. N can be considered as a difference. The difference may be indicated by the network, e.g. by system information, or by RRC signaling.

Or, the value of N may be determined according to a reference DCI format, and the UE determines the value of N according to the number of reserved bits in a DCI format in a PDCCH scrambled by at least one RNTI. The RNTI value can be RA-RNTI, P-RNTI, SI-RNTI, TC-RNTI or the like. The UE may determine the value of N according to the number of reserved bits in the PDCCH scrambled by a certain RNTI. E.g., there are 16 reserved bits in the RA-RNTI scrambled PDCCH, N may be determined to be 16.

Alternatively, the UE may determine the value of N according to the number of reserved bits in a PDCCH scrambled by multiple (at least two) RNTIs, for example, the number of reserved bits in a PDCCH scrambled by an RA-RNTI is 16 bits, and the number of reserved bits in a PDCCH scrambled by an SI-RNTI is 15 bits, then N may be the minimum value 15 or the maximum value 16 of the two. Alternatively, the number of reserved bits in the PDCCH scrambled with the SI-RNTI is 15 bits, and the number of reserved bits in the PDCCH scrambled with the P-RNTI is 11 bits, and the average value of the two numbers, that is, N is 13. If the average is not an integer, either a ceiling or a floor may be performed.

Besides RA-RNTI, P-RNTI, SI-RNTI, TC-RNTI, MSGB-RNTI and C-RNTI, the Paging Early Indication (PEI) -RNTI can also be used, and the PDCCH scrambled by the PEI-RNTI is used for indicating whether the UE carries out Paging PDCCH (namely the PDCCH scrambled by the P-RNTI) monitoring.

For the P-RNTI scrambled PDCCH, the reserved bit number calculation therein may include the reserved bit number of the whole DCI format and/or the partial reserved bit number of the 8 bits of the short message (short message).

For the PDCCH scrambled by the TC-RNTI, the reserved bit number calculation therein may include a Downlink Assignment Index (DAI) bit field.

Example 2:

if the number N of bits reduced compared with the DCI size of the reference DCI format is determined to be less than or equal to the number of reserved bits in the PDCCH scrambled by the first RNTI of the reference DCI format, the first DCI format scrambled by the first RNTI reduces the reserved bits by N bits for the reference DCI format, and the rest information fields are the same as the reference DCI format. For example, for a first DCI format of a PDCCH scrambled with RA-RNTI, if N is 11 and the number of reserved bits in the PDCCH scrambled with reference DCI format RA-RNTI is 16, the number of reserved bits in the first DCI format is 5, i.e. 11 bits of reserved bits are directly subtracted compared to the reference format. The remaining information fields are the same as the reference format.

If the number N of bits reduced compared with the DCI size of the reference DCI format is determined to be larger than the reserved number of bits of the PDCCH scrambled by the first RNTI of the reference DCI format, the first RNTI-scrambled first DCI format reduces the reserved bits by N bits for the reference DCI format, and other information domains are further compressed on the basis of the reference DCI format. Here, the other information field is compressed so that the length of the DCI information field in the first DCI format is less than or equal to the length of the DCI information field in the reference DCI format, including making the length of the information field 0, i.e., the information field no longer exists in the first DCI format.

The information fields to be compressed include all information fields except reserved bits (also referred to as reserved bits) in the reference DCI format or a part of the information fields, which may be configured by the network.

Alternatively, the bits of the other information fields are compressed in a first order, for example, in the order of frequency domain resource allocation, time domain resource allocation, RV, MCS, …, and the corresponding number of bits in the first DCI format is less than or equal to the number of bits in the corresponding information field in the reference DCI format. It is assumed that the number of information fields that can be compressed in the reference DCI format is P, except for the reserved bits, and if the DCI size of the first DCI format is not greater than the reference DCI size-N after the compression of the P-th information field is performed in sequence, the compression of the subsequent information fields is not performed. The first order may be network configured or predefined. Also, a portion of the information field, which may be network configured or predefined, may not be compressed. The number of compressed bits for each information field may be predetermined or network configured. The bit number of each information field after compression may be 0, and if the bit number is 0, the indication information corresponding to the information field is preset or network configured.

For example, the number of bits of the frequency hopping indication, RV, VRB to PRB mapping in the first DCI format may be 0, and whether to hop frequency, the RV version used for transmission, and the mapping manner of the VRB to PRB may be preset or configured through system information or RRC signaling.

In the information determining method according to the embodiment of the application, the first DCI format is determined according to at least one of bit number information of the first DCI corresponding to the first DCI format and bit number information of the second DCI corresponding to the reference DCI format, for example, a reserved bit number and an information field in the first DCI format are determined. That is, in the embodiment of the present application, bit number information corresponding to a DCI format is first determined, and then a corresponding reserved bit number, an information field, and the like are determined according to the bit number information, so that a larger DCI can be avoided, and it can be ensured that the obtained DCI is the same in size, and thus transmission performance and coverage of a PDCCH can be effectively improved on the premise of not improving complexity of PDCCH reception and decoding.

It should be noted that, in the information determining method provided in the embodiment of the present application, the executing subject may be the information determining method, or a control module in the information determining apparatus for executing the information determining method. In the embodiment of the present application, an information determining apparatus executing an information determining method is taken as an example, and the information determining apparatus provided in the embodiment of the present application is described.

As shown in fig. 3, an embodiment of the present application further provides an information determining apparatus 300, including:

a first determining module 301, configured to determine a first downlink control information DCI format according to the first information;

wherein the first information is determined according to at least one of:

bit number information of first DCI corresponding to the first DCI format;

Optionally, the information determining apparatus according to the embodiment of the present application further includes:

and the transceiver module is used for transmitting or receiving the first DCI corresponding to the first DCI format.

Specifically, when the information determining apparatus is applied to a terminal, the transceiver module receives a first DCI corresponding to the first DCI format;

when the information determining apparatus is applied to a network side device, the transceiver module transmits a first DCI corresponding to the first DCI format.

In the information determining apparatus of the embodiment of the present application, the first information is determined according to a difference N between a total number of bits of the first DCI and a total number of bits of the second DCI.

The information determining apparatus according to the embodiment of the present application further includes:

a second determining module, configured to determine, according to indication information of a network side device, a difference N between a total bit number of the first DCI and a total bit number of the second DCI;

In the information determining apparatus according to the embodiment of the present application, when the reserved bit number in the PDCCH is determined according to the reserved bit number in one PDCCH, N is a maximum value or a minimum value of the reserved bit number in the PDCCH;

In the information determining apparatus of the embodiment of the present application, when N is less than or equal to the reserved bit number M in the PDCCH, the reserved bit number in the first DCI format is M-N.

In the information determining apparatus of the embodiment of the present application, when N is greater than the reserved bit number M in the PDCCH, the reserved bit number in the first DCI format is 0.

In the information determining apparatus according to the embodiment of the present application, the first information includes: a number of bits of an information field in the reference DCI format;

the first determining module is configured to determine the bit number of the information field in the first DCI format according to the bit number of the information field in the reference DCI format.

In the information determining apparatus according to the embodiment of the present application, the number of bits of the information field in the first DCI format is the same as the number of bits of the information field in the reference DCI format.

In the information determining apparatus of the embodiment of the present application, the number of bits of the first information field in the first DCI format is smaller than the number of bits of the first information field in the reference DCI format;

the first determining module is configured to determine, according to a network indication or according to a first order, a bit number of at least one first information field in the first DCI format;

wherein the number of bits of the first information field in the first DCI format is smaller than the number of bits of the first information field in the reference DCI format, and the first order is predefined or network configured.

In the information determining apparatus of the embodiment of the present application, the number of bits of the first information field is predefined or configured by a network.

In the information determining apparatus of the embodiment of the application, the number of the first information domains is determined according to a preset rule;

wherein the preset rule comprises: after s first information domains are determined, if the total bit number of the first DCI is smaller than or equal to the difference between the total bit number of the second DCI and N, determining that the number of the first information domains is s.

In the information determining apparatus according to the embodiment of the present application, the first information field satisfies at least one of the following conditions:

a first scheduling granularity is a multiple of a second scheduling granularity, a is an integer greater than 1, the first scheduling granularity is a scheduling granularity corresponding to the first information field, and the second scheduling granularity is a scheduling granularity corresponding to a corresponding first information field in the reference DCI format;

the first number of options is smaller than a second number of options, the first number of options is the number of options corresponding to the first information domain, and the second number of options is the number of options corresponding to the corresponding first information domain in the reference DCI format;

the content of the first information domain is the content configured by the network equipment or the preset content.

In the information determining apparatus of the embodiment of the present application, the PDCCH is a PDCCH of a common search space.

The information determining apparatus according to the embodiment of the present application determines the first DCI format according to at least one of bit number information of a first DCI corresponding to the first DCI format and bit number information of a second DCI corresponding to the reference DCI format, for example, determines a reserved bit number and an information field in the first DCI format. That is, in the embodiment of the present application, bit number information corresponding to a DCI format is determined, and then a corresponding reserved bit number, an information field, and the like are determined according to the bit number information, so that a larger DCI can be avoided, and it can be ensured that the obtained DCI is the same in size, and thus transmission performance and coverage of a PDCCH can be effectively improved on the premise of not improving complexity of PDCCH reception and decoding.

The information determination device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The information determination device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The information determining apparatus provided in the embodiment of the present application can implement each process implemented in the embodiment of the method in fig. 2, and achieve the same technical effect, and is not described here again to avoid repetition.

Optionally, as shown in fig. 4, an embodiment of the present application further provides a communication device 400, which includes a processor 401, a memory 402, and a program or an instruction stored in the memory 402 and executable on the processor 401, for example, when the communication device 400 is a terminal, the program or the instruction is executed by the processor 401 to implement each process of the above-mentioned information determination method embodiment, and the same technical effect can be achieved. When the communication device 400 is a network-side device, the program or the instruction is executed by the processor 401 to implement the processes of the above-mentioned information determination method embodiment, and the same technical effect can be achieved.

Fig. 5 is a schematic hardware structure diagram of a terminal for implementing an embodiment of the present application, where the terminal 500 includes, but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and the like.

Those skilled in the art will appreciate that the terminal 500 may further include a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 510 via a power management system, so as to implement functions of managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 5 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again here.

It should be understood that in the embodiment of the present application, the input Unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042, and the Graphics processor 5041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 507 includes a touch panel 5071 and other input devices 5072. A touch panel 5071, also referred to as a touch screen. The touch panel 5071 may include two parts of a touch detection device and a touch controller. Other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in further detail herein.

In the embodiment of the present application, the radio frequency unit 501 receives downlink data from a network side device and then processes the downlink data in the processor 510; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 509 may be used to store software programs or instructions as well as various data. The memory 509 may mainly include a stored program or instruction area and a stored data area, wherein the stored program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 509 may include a high-speed random access Memory, and may further include a nonvolatile Memory, wherein 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), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 510 may include one or more processing units; alternatively, processor 510 may integrate an application processor, which primarily handles operating systems, user interfaces, and applications or instructions, etc., and a modem processor, which primarily handles wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 510.

The processor 510 is configured to determine a first downlink control information DCI format according to the first information;

wherein the first information is determined according to at least one of:

bit number information of first DCI corresponding to the first DCI format;

The terminal of the embodiment of the application determines the first DCI format according to at least one of bit number information of the first DCI corresponding to the first DCI format and bit number information of the second DCI corresponding to the reference DCI format, for example, determines a reserved bit number and an information field in the first DCI format. That is, in the embodiment of the present application, bit number information corresponding to a DCI format is determined, and then a corresponding reserved bit number, an information field, and the like are determined according to the bit number information, so that a larger DCI can be avoided, and it can be ensured that the obtained DCI is the same in size, and thus transmission performance and coverage of a PDCCH can be effectively improved on the premise of not improving complexity of PDCCH reception and decoding.

Optionally, the processor 510 is further configured to determine, according to indication information of a network side device, a difference N between the total bit number of the first DCI and the total bit number of the second DCI;

or determining a difference value N between the total bit number of the first DCI and the total bit number of the second DCI according to the reserved bit number in the PDCCH, wherein the format of the DCI carried by the PDCCH is the reference DCI format, and the reserved bit number in the PDCCH is determined according to the reserved bit number in at least one PDCCH scrambled by a first Radio Network Temporary Identifier (RNTI).

Optionally, when N is less than or equal to the number M of reserved bits in the PDCCH, the number of reserved bits in the first DCI format is M-N.

Optionally, when N is greater than the number M of reserved bits in the PDCCH, the number of reserved bits in the first DCI format is 0.

the processor 510 is further configured to determine the bit number of the information field in the first DCI format according to the bit number of the information field in the reference DCI format.

Optionally, the number of bits of the information field in the first DCI format is the same as the number of bits of the information field in the reference DCI format.

Optionally, the number of bits of the first information field in the first DCI format is smaller than the number of bits of the first information field in the reference DCI format;

the processor 510 is further configured to determine, according to a network indication or according to a first order, a bit number of at least one first information field in the first DCI format;

Optionally, the number of bits of the first information field is predefined or network configured.

Optionally, the first information domain satisfies at least one of:

a first number of options is smaller than a second number of options, the first number of options being the number of options corresponding to the first information field, and the second number of options being the number of options corresponding to the corresponding first information field in the reference DCI format;

Optionally, the PDCCH is a PDCCH of a common search space.

Specifically, when the communication device is a network device, as shown in fig. 6, the network device 600 includes: antenna 601, radio frequency device 602, baseband device 603. The antenna 601 is connected to a radio frequency device 602. In the uplink direction, rf device 602 receives information via antenna 601, and sends the received information to baseband device 603 for processing. In the downlink direction, the baseband device 603 processes information to be transmitted and transmits the information to the radio frequency device 602, and the radio frequency device 602 processes the received information and transmits the processed information through the antenna 601.

The above band processing apparatus may be located in the baseband apparatus 603, and the method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 603, where the baseband apparatus 603 includes a processor 604 and a memory 605.

The baseband device 603 may include at least one baseband board, for example, a plurality of chips are disposed on the baseband board, as shown in fig. 6, where one of the chips, for example, the processor 604, is connected to the memory 605 to call the program in the memory 605 to perform the network side device operation shown in the above method embodiment.

The baseband device 603 may further include a network interface 606, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 602.

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 605 and capable of being executed on the processor 604, and the processor 604 calls the instructions or programs in the memory 605 to execute the method executed by each module shown in fig. 3, and achieve the same technical effect, and are not described herein in detail to avoid repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above-mentioned information determining method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the above-mentioned information determining method embodiment, and can achieve the same technical effect, and is not described here again to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An information determination method, comprising:

wherein the first information is determined according to at least one of:

bit number information of first DCI corresponding to the first DCI format;

2. The information determination method according to claim 1, wherein the first information is determined according to a difference N between a total number of bits of the first DCI and a total number of bits of the second DCI.

3. The information determination method according to claim 2, further comprising:

the communication equipment determines a difference value N between the total bit number of the first DCI and the total bit number of the second DCI according to indication information of network side equipment;

or the communication device determines a difference N between the total bit number of the first DCI and the total bit number of the second DCI according to the reserved bit number in the PDCCH, where the format of the DCI carried by the PDCCH is the reference DCI format, and the reserved bit number in the PDCCH is determined according to the reserved bit number in at least one PDCCH scrambled by the first radio network temporary identifier RNTI.

4. The information determination method according to claim 3, wherein in a case where the number of reserved bits in the PDCCHs is determined according to the number of reserved bits in one of the PDCCHs, the N is a maximum value or a minimum value of the number of reserved bits in the PDCCHs;

or, when the reserved bit number in the PDCCH is determined according to the reserved bit numbers in at least two PDCCHs, N is an average value, a maximum value, or a minimum value of the reserved bit numbers in the at least two PDCCHs.

5. The information determination method of claim 3, wherein the number of reserved bits in the first DCI format is M-N, if N is less than or equal to the number of reserved bits M in the PDCCH.

6. The information determination method according to claim 3, wherein the number of reserved bits in the first DCI format is 0 in case that N is greater than the number of reserved bits M in the PDCCH.

7. The information determination method according to claim 1, wherein the first information includes: a number of bits of an information field in the reference DCI format;

8. The information determination method according to claim 7, wherein the number of bits of the information field in the first DCI format is the same as the number of bits of the information field in the reference DCI format.

9. The information determination method according to claim 7, wherein the number of bits of the first information field in the first DCI format is smaller than the number of bits of the first information field in the reference DCI format;

10. The information determination method of claim 9, wherein the number of bits of the first information field is predefined or network configured.

11. The information determination method according to claim 9, wherein the number of the first information fields is determined according to a preset rule;

12. The information determination method of claim 9, wherein the first information field satisfies at least one of:

13. The information determination method of claim 3, wherein the PDCCH is a PDCCH of a common search space.

14. An information determining apparatus, comprising:

wherein the first information is determined according to at least one of:

bit number information of first DCI corresponding to the first DCI format;

and referring to bit number information of second DCI corresponding to the DCI format.

15. The information determining apparatus according to claim 14, wherein the first information is determined according to a difference N between the total number of bits of the first DCI and the total number of bits of the second DCI.

16. The information determining apparatus according to claim 15, characterized by further comprising:

17. The information determining apparatus of claim 16, wherein N is a maximum value or a minimum value of the number of reserved bits in the PDCCH in a case where the number of reserved bits in the PDCCHs is determined according to the number of reserved bits in one of the PDCCHs;

18. The information determination apparatus of claim 16, wherein the number of reserved bits in the first DCI format is M-N if N is less than or equal to the number of reserved bits M in the PDCCH.

19. The information determination apparatus of claim 16, wherein the number of reserved bits in the first DCI format is 0 if N is greater than the number of reserved bits M in the PDCCH.

20. The information determination apparatus according to claim 14, wherein the first information includes: a number of bits of an information field in the reference DCI format;

21. The information determination apparatus of claim 20, wherein a number of bits of an information field in the first DCI format is the same as a number of bits of an information field in the reference DCI format.

22. The information determining apparatus of claim 20, wherein the number of bits of the first information field in the first DCI format is smaller than the number of bits of the first information field in the reference DCI format;

23. The information determination apparatus of claim 22, wherein the number of bits of the first information field is predefined or network configured.

24. The information determination apparatus according to claim 22, wherein the number of the first information fields is determined according to a preset rule;

25. The information determination apparatus of claim 22, wherein the first information field satisfies at least one of:

26. The information determination apparatus of claim 16, wherein the PDCCH is a PDCCH of a common search space.

27. A communication device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the information determination method of any one of claims 1 to 13.

28. A readable storage medium on which a program or instructions are stored which, when executed by a processor, carry out the steps of the information determination method of any one of claims 1 to 13.