WO2022127702A1

WO2022127702A1 - Information determination method and apparatus, and communication device

Info

Publication number: WO2022127702A1
Application number: PCT/CN2021/137066
Authority: WO
Inventors: 吴凯; 李娜
Original assignee: 维沃移动通信有限公司
Priority date: 2020-12-17
Filing date: 2021-12-10
Publication date: 2022-06-23
Also published as: CN114650120A

Abstract

Disclosed in the present application are an information determination method and apparatus, and a communication device. The method comprises: a communication device determines a first downlink control information (DCI) format according to first information, the first information being determined according to at least one of the following: bit number information of first DCI corresponding to the first DCI format, and bit number information of second DCI corresponding to a reference DCI format.

Description

Information determination method, device and communication device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202011495398.2 filed in China on Dec. 17, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present invention relates to the field of communication technologies, and in particular, to an information determination method, apparatus and communication device.

Background technique

In the New Radio (NR) system, the user equipment (User Equipment, UE) needs to monitor the physical downlink control channel (Physical Downlink Control Channel, PDCCH) two formats of downlink control information (Downlink Control Information, DCI) ), DCI format 1-0 and DCI format 0-0, respectively. Among them, DCI format 1-0 is the downlink PDCCH format, which can be scrambled by different wireless network temporary identifiers (Radio Network Temporary Identifier, RNTI), and used for different purposes, DCI format 1-0 and/ Or the size of the DCI of 0-0 is the same, that is, the number of DCI bits is the same. However, the number of reserved bits in DCI formats scrambled by different RNTIs is different. The reserved bits do not transmit valid information, and the size of the DCI can be reduced by pruning the reserved bits to improve the PDCCH transmission performance and PDCCH coverage.

However, if the PDCCH is compressed and the reserved bits in the DCI format of the PDCCH scrambled by different RNTIs are directly deleted, the size of the DCI will be different, which will increase the complexity of PDCCH reception and decoding.

SUMMARY OF THE INVENTION

The embodiments of the present application provide an information determination method, apparatus, terminal, and network side equipment, which can solve the problems of limited performance and coverage of the PDCCH.

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

The communication device determines the DCI format of the first downlink control information according to the first information;

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

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

Refer to the bit number information of the second DCI corresponding to the DCI format.

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

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

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

In a third aspect, a communication device is provided, the terminal includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the processor When implementing the steps of the method as described in the first aspect.

In a fourth aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.

In a fifth aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect A step of.

In a sixth aspect, a computer program product is provided, the computer program product is stored in a non-volatile storage medium, the computer program product is executed by at least one processor to implement the method of the first aspect step.

In this embodiment of the present application, the first DCI format is determined according to at least one of the bit number information of the first DCI corresponding to the first DCI format and the bit number information of the second DCI corresponding to the reference DCI format. Number of reserved bits and information fields in a DCI format. That is, in the embodiment of the present application, first determine the bit number information corresponding to the DCI format, and then determine the corresponding reserved bit number and information field according to the bit number information, so that large DCI can be avoided, and the obtained DCI can be guaranteed. The size is the same, which can effectively improve the transmission performance and coverage of the PDCCH without increasing the complexity of PDCCH reception and decoding.

Description of drawings

FIG. 1 shows a structural diagram of a network system to which an embodiment of the present application can be applied;

2 shows a schematic flowchart of a method for determining information according to an embodiment of the present application;

3 is a schematic diagram of a module of an information determination apparatus according to an embodiment of the present application;

FIG. 4 shows a structural block diagram of a communication device according to an embodiment of the present application;

FIG. 5 shows a structural block diagram of a terminal according to an embodiment of the present application;

FIG. 6 shows a structural block diagram of a network side device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first", "second" distinguishes Usually it is a class, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. However, the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most Generation, 6G) communication system.

FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12 . The terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), Pocket PC, Netbook, Ultra-Mobile Personal Computer (UMPC), Mobile Internet Device (Mobile Internet Device, MID), Wearable Device (Wearable Device) or vehicle-mounted device ( VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, earphones, glasses, etc. 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, wherein 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 (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Network, WLAN) access point, Wireless Fidelity (Wireless Fidelity, WiFi) node, Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station does not Limited to specific technical vocabulary, it should be noted that in the embodiments of this application, only the base station in the NR system is used as an example, but the specific type of the base station is not limited.

The information determination method provided by the embodiments of the present application will be 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 a method for determining information, including:

Step 201: The communication device determines the DCI format of the first downlink control information according to the first information.

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

The above-mentioned bit number information includes at least one of the total number of bits of the DCI, the number of bits of the information field of the DCI, and the number of reserved bits of the DCI. The above communication device is a terminal or a network side device.

In the embodiment of the present application, the above-mentioned DCI format includes at least one of the size (total number of bits) of the DCI, the information fields included in the DCI, the number of bits of each information field, the order of the information fields, and the number of reserved bits. For example, the size of the 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 can be DCI format 1-0 or DCI format 0-0. Among them, DCI format 1-0 is the downlink PDCCH format, which can be scrambled by different Radio Network Temporary Identifier (RNTI) and used for different purposes; DCI format 0-0 is the uplink PDCCH format, which can be scrambled by Temporary Cell RNTI (TC-RNTI) scrambling is used to schedule the retransmission of message 3 (MSG3).

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

In this embodiment of the present application, the first DCI format is determined according to at least one of the bit number information of the first DCI corresponding to the first DCI format and the bit number information of the second DCI corresponding to the reference DCI format, such as determining the first DCI format. Number of reserved bits and information fields in the DCI format. That is, in the embodiment of the present application, first determine the bit number information corresponding to the DCI format, and then determine the corresponding reserved bit number and information field according to the bit number information, so that large DCI can be avoided, and the obtained DCI can be guaranteed. The size is the same, which can effectively improve the transmission performance and coverage of the PDCCH without increasing the complexity of PDCCH reception and decoding.

Optionally, 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.

Optionally, the information determination method in the embodiment of the present application further includes:

The communication device determines the difference N between the total number of bits of the first DCI and the total number of bits of the second DCI according to the indication information of the network-side device; the communication device here may specifically be a terminal. For example, the network side device indicates N through a system information block (System Information Block, SIB).

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

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

The above-mentioned first RNTI may include at least one of the following:

Random Access RNTI (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, in the case where the number of reserved bits in the PDCCH is determined according to the number of reserved bits in one of the PDCCHs, the N is the maximum or minimum value of the number of reserved bits in the PDCCH. ;

Or, in the case where the number of reserved bits in the PDCCH is determined according to the number of reserved bits in at least two of the PDCCHs, the N is an average value of the number of reserved bits in the at least two PDCCHs , the maximum value, or the minimum value.

As a first optional implementation manner, when the 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, in this implementation manner, 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, and the first information field refers to dividing Information fields other than the reserved bits.

As a second optional implementation manner, when the 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.

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

The communication device determines the DCI format of the first downlink control information according to the first information, including:

The communication device determines the number of bits of the information field in the first DCI format according to the number of bits of the information field in the reference DCI format.

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

The communication device determines, according to the number of bits of the information field in the reference DCI format, the number of bits of the information field in the first DCI format, including:

Determine the number of bits of at least one first information field in the first DCI format according to network instructions or in a first order;

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 configured by the network. Optionally, the number of bits of the first information field is predefined or configured by the network. For example, the number of bits 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;

The preset rule includes: after determining the s first information fields, if the total number of bits of the first DCI is less than or equal to the difference between the total number of bits of the second DCI and N, then determine the The number of an information field is s.

Optionally, the above-mentioned first information field may be all information fields except reserved bits in the first number of DCIs, or may be part of the information fields. Specifically, at least one of the first information fields is indicated by the network side device. Or, the terminal determines each first information field one by one according to the above-mentioned first order. The number of bits of the first information field is less than or equal to the number of bits of the corresponding first information field in the reference DCI format.

In this embodiment of the present application, the above-mentioned first information domain may be understood as a compressed information domain, and whether each information domain is compressed may be predefined or configured by the network. After the network-side device compresses the s-th information field in the first order, if the size of the first DCI is less than or equal to the difference between the size of the second DCI and N, it stops compressing the remaining W-s information fields. Compression is performed; 1≤s<W, W represents the number of all or part of the information fields except reserved bits in the first DCI format.

The meaning of the compression is to determine the total number of bits in the first DCI format and/or the number of bits in the information field, so that the total number of bits in the first DCI format is smaller than the total number of bits in the reference DCI format, and/or, the The number of bits of the information field in the first DCI format is smaller than the number of bits of the information field in the reference DCI format.

In addition, in the second optional implementation manner, the number of bits of the information fields in the first DCI format other than the above-mentioned first information field is the same as the number of bits of the corresponding information fields in the reference DCI format.

Optionally, the first information field satisfies at least one of the following:

The first scheduling granularity is A times the second scheduling granularity, where A is an integer greater than 1, the first scheduling granularity is the scheduling granularity corresponding to the first information field, and the second scheduling granularity is the corresponding scheduling granularity in the reference DCI format. the scheduling granularity corresponding to the first information field of ;

The first option number is less than the 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 corresponding first information field in the reference DCI format. number of options;

The content of the compressed first information field is the content configured by the network device or the preset content.

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

For another example, the first information domain includes a time domain resource allocation domain, a redundancy version (Redundancy version, RV), a Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH) resource indicator (PUCCH resource indicator), a modulation and coding scheme (Modulation) And Coding Scheme, MCS), physical downlink shared channel (Physical Downlink Shared CHannel, PDSCH) to hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) feedback time length indicator (PDSCH-to-HARQ_feedback timing indicator) at least One item, then for the first information field, the number of options configured by the network is less than the number of options corresponding to the corresponding first information field in the reference format.

Here, fewer options means fewer bits are required. For example, in the reference DCI format, the time-domain resource allocation field contains 4 bits, which corresponds to 16 options. In the first DCI format, the number of time-domain resource allocation options for the scheduled PDSCH or PUSCH can be limited to 8, then the corresponding The number of bits required for time-domain resource allocation is 3, or the number of time-domain resource allocation options for scheduled PDSCH or PUSCH can be limited to 4, and the number of bits required for corresponding time-domain resource allocation is 2.

For another example, the compressed first information field is a frequency hopping indication (Frequency Hopping Flag) or a mapping from a virtual resource block (Virtual Resource Block, VRB) to a physical resource block (Physical Resource Block, PRB), then the first information field The content is the content configured by the network device or the preset content, such as the frequency hopping indication is the default or the network configured frequency hopping or no frequency hopping.

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

Example 1:

The first DCI format is determined according to the reference DCI format and the size (size) of the first DCI. The reference DCI format is a network-configured DCI format or a default format, such as DCI format 1-0 or DCI format 0-0. The size of the first DCI is configured by the network, or the size of the first DCI is determined by referring to the DCI size of the DCI format, for example, subtracting N bits from the reference DCI size is the size of the first DCI. That is, N can be considered as a difference. The difference may be indicated by the network, eg, by system information, or by RRC signaling.

Alternatively, the value of N may be determined according to the reference DCI format, and the UE determines the value of N according to the number of reserved bits (reserved bits) in the DCI format in the PDCCH scrambled by at least one RNTI. The RNTI value can be RA-RNTI, P-RNTI, SI-RNTI, TC-RNTI, etc. The UE may determine the value of N according to the number of reserved bits in the PDCCH scrambled by a certain RNTI. For example, there are 16 reserved bits in the PDCCH scrambled by the RA-RNTI, and N can be determined to be 16.

Alternatively, the UE may determine the value of N according to the number of reserved bits in the PDCCH scrambled by multiple (at least two) RNTIs. For example, the reserved bits in the PDCCH scrambled by RA-RNTI are 16 bits, and the The number of reserved bits in the PDCCH is 15 bits, and N can be the minimum value of 15 or the maximum value of 16. Alternatively, the number of reserved bits in the PDCCH scrambled by SI-RNTI is 15 bits, and the number of reserved bits in the PDCCH scrambled by P-RNTI is 11 bits, and the average value of the two can be selected, that is, N=13. If the average is not an integer, it can be rounded up or down.

In addition to RA-RNTI, P-RNTI, SI-RNTI, TC-RNTI, MSGB-RNTI, C-RNTI, it is also possible to use PEI-RNTI scrambling for Paging Early Indication (PEI)-RNTI The role of the PDCCH is to indicate whether the UE performs paging PDCCH (ie P-RNTI scrambled PDCCH) monitoring.

For P-RNTI scrambled PDCCH, the calculation of the number of reserved bits may include the number of reserved bits in the entire DCI format and/or the number of reserved bits in part of the 8 bits of the short message (short message).

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

Example 2:

If it is determined that the number of bits N reduced compared to the DCI size of the reference DCI format is 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 is the reference DCI The format is reduced by N bits of reserved bits, and the rest of the information field is the same as the reference DCI format. For example, for the first DCI format of the PDCCH scrambled by RA-RNTI, if N=11 and the number of reserved bits in the PDCCH scrambled by RA-RNTI with reference to the DCI format is 16, then the number of reserved bits in the first DCI format is 5, that is, the reserved bits of 11 bits are directly subtracted from the reference format. The rest of the information fields are in the same format as the reference.

If it is determined that the number N of bits reduced compared to the DCI size of the reference DCI format is greater than the number of reserved bits of the PDCCH scrambled by the first RNTI of the reference DCI format, then the first DCI format scrambled by the first RNTI is the reference DCI format reduced by N bits The bits are reserved, and other information fields are further compressed on the basis of the reference DCI format. Here, other information fields are 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, that is, the information field is in the first DCI format. A DCI format no longer exists.

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

Or, compress the number of bits of other information domains according to the first order, for example, compress one by one in the order of frequency domain resource allocation, time domain resource allocation, RV, MCS, . . . 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 compression of the p-th information field is performed in sequence, the DCI size of the first DCI format ≤ reference DCI size– N, the subsequent information field compression will not be performed. The first order may be network-configured, or predefined. Meanwhile, a part of the information fields may not be compressed, and the part of the information fields may be configured or predefined by the network. The compressed bit number of each information field may be predetermined or configured by the network. The compressed bit number of each information field may be 0, and if it is 0, the indication information corresponding to the information field is preset or configured by the network.

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

In the information determination method of the embodiment of the present application, the first DCI format is determined according to at least one of the bit number information of the first DCI corresponding to the first DCI format and the bit number information of the second DCI corresponding to the reference DCI format, such as Determine the number of reserved bits and the information field in the first DCI format. That is, in the embodiment of the present application, the number of bits information corresponding to the DCI format is first, and then the corresponding number of reserved bits and information fields are determined according to the number of bits information, so that large DCI can be avoided and the size of the obtained DCI can be guaranteed. are the same, thereby effectively improving the transmission performance and coverage of the PDCCH without increasing the complexity of PDCCH reception and decoding.

It should be noted that, in the information determination method provided by the embodiments of the present application, the execution subject may be the information determination method, or a control module in the information determination apparatus for executing the information determination method. In the embodiments of the present application, the information determining device provided by the embodiments of the present application is described by taking the information determining device executing the information determining method as an example.

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

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

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

Optionally, the information determination device in the embodiment of the present application further includes:

A transceiver module, configured to send or receive the first DCI corresponding to the first DCI format.

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

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

In the apparatus for determining information in the embodiment of the present application, 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.

The information determination device of the embodiment of the present application further includes:

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

According to the information determining apparatus of the embodiment of the present application, in the case that the number of reserved bits in the PDCCH is determined according to the number of reserved bits in one of the PDCCHs, the N is the number of reserved bits in the PDCCH. maximum or minimum value;

In the information determination apparatus according to the embodiment of the present application, when the 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.

In the information determination apparatus according to the embodiment of the present application, when the 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.

In the information determination apparatus of the embodiment of the present application, the first information includes: the number of bits of the information field in the reference DCI format;

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

In the information determination 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.

According to the information determination device of the embodiment of the present application, the number of bits of the first information field in the first DCI format is less than the number of bits of the first information field in the reference DCI format;

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

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 configured by the network.

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

In the information determination device of the embodiment of the present application, the number of the first information fields is determined according to a preset rule;

In the information determination device of the embodiment of the present application, the first information field satisfies at least one of the following:

The first scheduling granularity is A times the second scheduling granularity, where A is an integer greater than 1, the first scheduling granularity is the scheduling granularity corresponding to the first information field, and the second scheduling granularity is the reference DCI format The scheduling granularity corresponding to the corresponding first information field in ;

The first option number is less than the second option number, the first option number is the option number corresponding to the first information field, and the second option number is the option corresponding to the corresponding first information field in the reference DCI format number;

The content of the first information field is the content configured by the network device or the preset content.

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

The information determining apparatus of the embodiment of the present application determines the first DCI format according to at least one of the bit number information of the first DCI corresponding to the first DCI format and the bit number information of the second DCI corresponding to the reference DCI format, such as Determine the number of reserved bits and the information field in the first DCI format. That is, in the embodiment of the present application, first determine the bit number information corresponding to the DCI format, and then determine the corresponding reserved bit number and information field according to the bit number information, so that large DCI can be avoided, and the obtained DCI can be guaranteed. The size is the same, which can effectively improve the transmission performance and coverage of the PDCCH without increasing the complexity of PDCCH reception and decoding.

The apparatus for determining information in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include but is not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (Personal Computer, PC), a television ( Television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The information determining 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, which are not specifically limited in the embodiments of the present application.

The information determination apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment of FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 4 , an embodiment of the present application further provides a communication device 400, including a processor 401, a memory 402, a program or instruction stored in the memory 402 and executable on the processor 401, For example, when the communication device 400 is a terminal, when the program or instruction is executed by the processor 401, each process of the foregoing information determination method embodiment can be implemented, and the same technical effect can be achieved. When the communication device 400 is a network-side device, when the program or instruction is executed by the processor 401, each process of the above information determination method embodiment can be implemented, and the same technical effect can be achieved. To avoid repetition, details are not described here.

5 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application. 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, interface unit 508, memory 509, processor 510 and other components.

Those skilled in the art can understand that the terminal 500 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 510 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions. The terminal structure shown in FIG. 5 does not constitute a limitation to the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in this embodiment of the present application, the input unit 504 may include a graphics processor (Graphics Processing Unit, GPU) 5041 and a microphone 5042. Such as camera) to obtain still pictures or video image data for processing. The display unit 506 may include a display panel 5061, which 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 . The touch panel 5071 is also called a touch screen. The touch panel 5071 may include two parts, a touch detection device and a touch controller. Other input devices 5072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.

In the embodiment of the present application, the radio frequency unit 501 receives the downlink data from the network side device, and then processes it to the processor 510; in addition, sends the uplink data to the network side device. Generally, the 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.

Memory 509 may be used to store software programs or instructions as well as various data. The memory 509 may mainly include a storage program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 509 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

The processor 510 may include one or more processing units; optionally, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 510.

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

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

The terminal in this embodiment of the present application determines the first DCI format according to at least one of the bit number information of the first DCI corresponding to the first DCI format and the bit number information of the second DCI corresponding to the reference DCI format. Number of reserved bits and information fields in a DCI format. That is, in the embodiment of the present application, first determine the bit number information corresponding to the DCI format, and then determine the corresponding reserved bit number and information field according to the bit number information, so that large DCI can be avoided, and the obtained DCI can be guaranteed. The size is the same, which can effectively improve the transmission performance and coverage of the PDCCH without increasing the complexity of PDCCH reception and decoding.

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

Or, determine the difference N between the total number of bits of the first DCI and the total number of bits of the second DCI according to the number of reserved bits in the PDCCH, where the format of the DCI carried by the PDCCH is the The number of reserved bits in the PDCCH in the reference DCI format is determined according to the number of reserved bits in at least one PDCCH scrambled by the first wireless network temporary identifier RNTI.

Optionally, when the 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 the 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 number of bits of the information field in the first DCI format according to the number of bits 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 less than the number of bits of the first information field in the reference DCI format;

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

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

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

Specifically, when the communication device is a network-side device, as shown in FIG. 6 , the network-side device 600 includes: an antenna 601 , a radio frequency device 602 , and a baseband device 603 . The antenna 601 is connected to the radio frequency device 602 . In the uplink direction, the radio frequency device 602 receives information through the antenna 601, and sends the received information to the baseband device 603 for processing. In the downlink direction, the baseband device 603 processes the information to be sent and sends it to the radio frequency device 602 , and the radio frequency device 602 processes the received information and sends it out through the antenna 601 .

The above-mentioned frequency band processing apparatus may be located in the baseband apparatus 603 , and the method performed by the network side device in the above embodiments 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, for example, at least one baseband board on which multiple chips are arranged. As shown in FIG. 6 , one of the chips is, for example, the processor 604, which is connected to the memory 605 to call the program in the memory 605 to execute The network-side device shown in the above method embodiments operates.

The baseband device 603 may further include a network interface 606 for exchanging information with the radio frequency device 602, and the interface is, for example, a common public radio interface (CPRI for short).

Specifically, the network-side device in the embodiment of the present invention further includes: instructions or programs stored in the memory 605 and executable on the processor 604, and the processor 604 invokes the instructions or programs in the memory 605 to execute the modules shown in FIG. 3 The implementation method and achieve the same technical effect, in order to avoid repetition, it is not repeated here.

Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the foregoing information determination method embodiment can be implemented, and the same can be achieved. In order to avoid repetition, the technical effect will not be repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

An 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 run a program or an instruction to implement the information determination method embodiment described above. Each process can achieve the same technical effect. In order to avoid repetition, it will not be repeated here.

An embodiment of the present application further provides a computer program product, the computer program product is stored in a non-volatile storage medium, and the computer program product is executed by at least one processor to implement each of the foregoing information determination method embodiments process, and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.

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

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) execute the methods described in the various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims

A method of determining information, comprising:

The communication device determines the DCI format of the first downlink control information according to the first information;

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

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

Refer to the bit number information of the second DCI corresponding to the DCI format.
The information determination method according to claim 1, 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.
The information determination method according to claim 2, wherein, further comprising:

The communication device determines the difference N between the total number of bits of the first DCI and the total number of bits of the second DCI according to the indication information of the network side device;

Or, the communication device determines the difference N between the total number of bits of the first DCI and the total number of bits of the second DCI according to the number of reserved bits in the PDCCH, where the format of the DCI carried by the PDCCH is For the reference DCI format, the number of reserved bits in the PDCCH is determined according to the number of reserved bits in at least one PDCCH scrambled by the first wireless network temporary identifier RNTI.
The information determination method according to claim 3, wherein, in the case that the reserved bits in the PDCCH are determined according to the reserved bits in one of the PDCCHs, the N is the reserved bits in the PDCCH. The maximum or minimum number of reserved bits;

Or, in the case where the number of reserved bits in the PDCCH is determined according to the number of reserved bits in at least two of the PDCCHs, the N is an average value of the number of reserved bits in the at least two PDCCHs , the maximum value, or the minimum value.
The information determination method according to claim 3, wherein, when the 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.
The information determination method according to claim 3, wherein when the 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 information determination method according to claim 1, wherein the first information comprises: the number of bits of the information field in the reference DCI format;

The communication device determines the DCI format of the first downlink control information according to the first information, including:

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

The communication device determines, according to the number of bits of the information field in the reference DCI format, the number of bits of the information field in the first DCI format, including:

determining the number of bits of at least one first information field in the first DCI format according to a network instruction or according to a first order;

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 configured by the network.
The information determination method according to claim 9, wherein the number of bits of the first information field is predefined or configured for the network.
The information determination method according to claim 9, wherein the number of the first information fields is determined according to a preset rule;

The preset rule includes: after determining the s first information fields, if the total number of bits of the first DCI is less than or equal to the difference between the total number of bits of the second DCI and N, then determine the The number of an information field is s.
The information determination method according to claim 9, wherein the first information field satisfies at least one of the following:

The first scheduling granularity is A times the second scheduling granularity, where A is an integer greater than 1, the first scheduling granularity is the scheduling granularity corresponding to the first information field, and the second scheduling granularity is the reference DCI format The scheduling granularity corresponding to the corresponding first information field in ;

The first option number is less than the second option number, the first option number is the option number corresponding to the first information field, and the second option number is the option corresponding to the corresponding first information field in the reference DCI format number;

The content of the first information field is the content configured by the network device or the preset content.
The information determination method according to claim 3, wherein the PDCCH is a PDCCH of a common search space.
An information determination device, comprising:

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

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

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

Refer to the bit number information of the second DCI corresponding to the DCI format.
The information determination 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.
The information determination device according to claim 15, further comprising:

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

Or, the communication device determines the difference N between the total number of bits of the first DCI and the total number of bits of the second DCI according to the number of reserved bits in the PDCCH, where the format of the DCI carried by the PDCCH is For the reference DCI format, the number of reserved bits in the PDCCH is determined according to the number of reserved bits in at least one PDCCH scrambled by the first wireless network temporary identifier RNTI.
The information determination apparatus according to claim 16, wherein, in the case where the number of reserved bits in the PDCCH is determined according to the number of reserved bits in one of the PDCCHs, the N is the number of reserved bits in the PDCCH The maximum or minimum number of reserved bits;

Or, in the case where the number of reserved bits in the PDCCH is determined according to the number of reserved bits in at least two of the PDCCHs, the N is an average value of the number of reserved bits in the at least two PDCCHs , the maximum value, or the minimum value.
The information determination apparatus according to claim 16, wherein, in a case where the 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.
The information determination apparatus according to claim 16, wherein in a case where the 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 information determination apparatus according to claim 14, wherein the first information comprises: the number of bits of the information field in the reference DCI format;

The first determining module is configured to determine the number of bits of the information field in the first DCI format according to the number of bits of the information field in the reference DCI format.
The information determination apparatus according to claim 20, 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.
The information determination apparatus according to claim 20, wherein the number of bits of the first information field in the first DCI format is less than the number of bits of the first information field in the reference DCI format;

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

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 configured by the network.
The information determination apparatus according to claim 22, wherein the number of bits of the first information field is predefined or configured by the network.
The information determination device according to claim 22, wherein the number of the first information fields is determined according to a preset rule;

The preset rule includes: after determining the s first information fields, if the total number of bits of the first DCI is less than or equal to the difference between the total number of bits of the second DCI and N, then determine the The number of an information field is s.
The information determination apparatus according to claim 22, wherein the first information field satisfies at least one of the following:

The first scheduling granularity is A times the second scheduling granularity, where A is an integer greater than 1, the first scheduling granularity is the scheduling granularity corresponding to the first information field, and the second scheduling granularity is the reference DCI format The scheduling granularity corresponding to the corresponding first information field in ;

The first option number is less than the second option number, the first option number is the option number corresponding to the first information field, and the second option number is the option corresponding to the corresponding first information field in the reference DCI format number;

The content of the first information field is the content configured by the network device or the preset content.
The information determination apparatus according to claim 16, wherein the PDCCH is a PDCCH of a common search space.
A communication device comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, wherein the program or instruction when executed by the processor implements the method as claimed in claim 1 Steps of the information determination method described in any one of to 13.
A readable storage medium storing programs or instructions on the readable storage medium, wherein when the programs or instructions are executed by a processor, the steps of the information determination method according to any one of claims 1 to 13 are implemented.
A chip, comprising a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running a program or an instruction to realize the information determination according to any one of claims 1 to 13 steps of the method.
A computer program product, wherein the computer program product is stored in a non-volatile storage medium, the computer program product being executed by at least one processor to implement any one of claims 1 to 13 The steps of the information determination method.