CN111510266B

CN111510266B - Signal sending method, signal receiving method and related equipment

Info

Publication number: CN111510266B
Application number: CN201910099234.9A
Authority: CN
Inventors: 谢信乾; 郭志恒; 费永强; 毕文平
Original assignee: Chengdu Huawei Technology Co Ltd
Current assignee: Chengdu Huawei Technology Co Ltd
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2021-10-01
Anticipated expiration: 2039-01-31
Also published as: WO2020156223A1; CN111510266A

Abstract

The embodiment of the application discloses a signal sending method, a signal receiving method and related equipment, wherein network equipment can repeatedly send control information to terminal equipment on a first time-frequency resource and a second time-frequency resource respectively, so that the terminal equipment can receive at least two identical control information in one transmission period of the control information, and the accuracy of the terminal equipment for receiving the control information is improved. The method comprises the following steps: the network equipment sends first indication information to the terminal equipment, wherein the first indication information is used for indicating a first time-frequency resource set; the network equipment sends second indication information to the terminal equipment, wherein the second indication information is used for indicating the existence or nonexistence of a second time-frequency resource set; the network equipment sends control information to the terminal equipment on a first time-frequency resource in the first time-frequency resource set; and under the condition that the second indication information indicates that the second time frequency resource set exists, the network equipment sends control information to the terminal equipment on the second time frequency resource in the second time frequency resource set.

Description

Signal sending method, signal receiving method and related equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a signal sending method, a signal receiving method, and related devices.

Background

In New Radio (NR) technology in The fifth generation mobile communication system (5G), synchronization signal/Broadcast Channel blocks (SS/PBCH block, SSB) are defined, and one SSB includes a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSs), and a Physical Broadcast Channel (PBCH).

In the 5G-NR technique, when a terminal device accesses a 5G-NR system, an SSB sent by a network device is received first, where a PBCH carries Information indicating positions of a time domain and a frequency domain of a time-frequency resource set where a Physical Downlink Control Channel (PDCCH) is located, and the network device sends the Physical Downlink Control Channel (PDCCH) to the terminal device in the time-frequency resource set, and the PDCCH carries Downlink Control Information (DCI) sent by the network device. And then the terminal equipment receives the PDCCH according to the indication of the PBCH and acquires the DCI in the PDCCH.

As the system evolves, wider coverage needs to be supported in the 5G-NR system, that is, terminal devices farther from the network device need to be covered, and generally, Signal-to-Noise Ratio (SNR) of the terminal devices is extremely low, so that the accuracy of receiving DCI by the terminal devices farther from the network device tends to be low.

Disclosure of Invention

The embodiment of the application provides a signal sending method, a signal receiving method and related equipment, wherein network equipment can repeatedly send control information to terminal equipment on a first time-frequency resource in a first time-frequency resource set and on a second time-frequency resource in a second time-frequency resource set respectively, so that the terminal equipment can receive at least two pieces of same control information in one transmission period of the control information, and the accuracy of the terminal equipment in receiving the control information is improved.

In a first aspect, an embodiment of the present application provides a signal sending method, where the method includes:

the network device may send, to the terminal device, first indication information that indicates a first set of time-frequency resources, and may also send, to the terminal device, second indication information that indicates the presence or absence of a second set of time-frequency resources, where the network device sends control information to the terminal device on a first time-frequency resource in the first set of time-frequency resources, and, in a case where the second indication information indicates the presence of the second set of time-frequency resources, the network device repeatedly sends control information to the terminal device on a second time-frequency resource in the second set of time-frequency resources, where a plurality of time-frequency resources included in the first set of time-frequency resources include the first time-frequency resource, a plurality of time-frequency resources included in the second set of time-frequency resources include the second time-frequency resource, and the second set of time-frequency resources is a set of time-frequency resources for the network device to repeatedly send control information, the first time frequency resource set and the second time frequency resource set can belong to the same transmission period of the control information in time domain, the existence of the second time frequency resource set indicates that the second time frequency resource for the network device to repeatedly send the control information to the terminal device exists, and correspondingly, the absence of the second time frequency resource indicates that the second time frequency resource for the network device to repeatedly send the control information to the terminal device does not exist.

In the application, the network device sends first indication information to the terminal device, so that the terminal device can determine a first time-frequency resource set according to the first indication information and obtain control information on a first time-frequency resource of the first time-frequency resource set, the network device also sends second indication information to the terminal device, the terminal device determines that a second time-frequency resource set does not exist according to the second indication information, and under the condition that the second time-frequency resource set exists, the terminal device can receive control information repeatedly sent by the network device on the second time-frequency resource of the second time-frequency resource set, so that the terminal device can receive at least two same control information in one transmission period of the control information, and the accuracy of the terminal device in receiving the control information is improved; in addition, the specific implementation mode of repeatedly sending the control information is provided, and the realizability of the scheme is improved.

In a possible design of the first aspect, before the network device sends the second indication information to the terminal device, the method may further include: the network device may determine an indication type of second indication information sent to the terminal device according to a relevant factor, where the relevant factor may include a distance between the network device and the terminal device or a communication quality between the network device and the terminal device, and the indication type of the second indication information includes existence of the second time-frequency resource set and absence of the second time-frequency resource.

In the application, the network device may further determine the type of the second indication information in combination with the relevant factors, that is, determine whether to repeatedly send the control information to the terminal device, and if the distance between the network device and the terminal device is short or the communication quality is good, there is no need to repeatedly send the control information, thereby avoiding waste of communication resources; if the distance between the network equipment and the terminal equipment is long or the communication quality is poor, the control information is repeatedly sent, so that the accuracy of the terminal equipment for receiving the control information is improved.

In a possible design of the first aspect, the first time-frequency resource set and the second time-frequency resource set are respectively located on consecutive and different symbols in the same timeslot in a time domain, where the symbol may be an ofdm symbol, a general filtering multi-carrier symbol, or a generalized frequency division multiplexing symbol.

In the application, the first time-frequency resource set and the second time-frequency resource set can be located on different continuous symbols respectively located in the same time slot in the time domain, so that the terminal equipment can receive at least two identical control information on the continuous symbols under the condition that the terminal equipment determines that the second time-frequency resource set exists according to the second indication information, the success rate of detecting the control information by the terminal equipment is improved, and the time for monitoring the control information by the terminal equipment is saved.

In a possible design of the first aspect, the number of symbols occupied by the first set of time-frequency resources and the second set of time-frequency resources in the time domain is no more than three.

In the application, because the number of symbols of the time-frequency resource reserved for the control information in the time domain is three, under the condition that the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain is not more than three, the overhead of the time-frequency resource occupied by the control information as a whole can be kept low.

In one possible design of the first aspect, the first set of time-frequency resources occupies one symbol in the time domain, and the second set of time-frequency resources occupies one or two symbols in the time domain.

In the application, the number of symbols occupied by the second time-frequency resource set in the time domain is greater than the number of symbols occupied by the first time-frequency resource set in the time domain, so that it can be ensured that the network device can send at least one piece of complete control information through the second time-frequency resource set, and thus it is ensured that the terminal device can receive two or even three pieces of same control information, and the success rate of detecting the control information by the terminal device is improved.

In a possible design of the first aspect, in a case that the second indication information indicates that the second time-frequency resource set exists, the second indication information further indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in a time domain; or, in the case that the second indication information indicates that the second time-frequency resource set exists, the second indication information is further used for indicating that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in the time domain.

In the application, the second indication information sent by the network device can also be used for indicating the position of the second time-frequency resource set, so that the terminal device can preliminarily determine the position of the second time-frequency resource set according to the second indication information, the range of the terminal device for monitoring the control information is reduced, and the load of the terminal device is favorably reduced.

In a possible design of the first aspect, in a case that the second indication information indicates that the second time-frequency resource set exists, the second indication information is further used to indicate a number of symbols occupied by the second time-frequency resource set in a time period.

In the application, the second indication information sent by the network device may also be used to indicate the number of symbols of the second time-frequency resource set, so that the terminal device may determine the number of symbols of the second time-frequency resource set according to the second indication information, and in the process of monitoring the control information, if the control information has been repeatedly monitored in L symbols, when L symbols are equal to the number of symbols indicated by the second indication information, the terminal device does not need to monitor the control information on other time-frequency resources, which is beneficial to reducing the load of the terminal device.

In a possible design of the first aspect, the second indication information further indicates a number of symbols occupied by the second time-frequency resource set in the time domain, when the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain; or, under the condition that the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in the time domain, the second indication information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain.

In the application, the second indication information sent by the network device not only indicates the position of the second time-frequency resource set, but also indicates the number of symbols occupied by the second time-frequency resource set, so that the terminal device can combine the second indication information to accurately position the second time-frequency resource set, the range of monitoring control information by the terminal device is reduced, and the load of the terminal device is favorably reduced.

In a possible design of the first aspect, the first time-frequency resource and the second time-frequency resource occupy the same frequency-domain resource.

In the application, the network device can repeatedly send the control information in the same frequency domain, which is beneficial for the network device to complete the repeated sending operation of the control information and is also beneficial for the network device to manage the time-frequency resources.

In a possible design of the first aspect, the first time-frequency resource and the second time-frequency resource occupy equal number of symbols in a time domain.

In a second aspect, an embodiment of the present application provides a signal receiving method, where the method includes:

the terminal device receives first indication information sent by the network device, the first indication information is used for indicating a first time-frequency resource set, the terminal device receives second indication information sent by the network device, the second indication information is used for indicating the existence or nonexistence of a second time-frequency resource set, the terminal device monitors control information in the first time-frequency resource set so as to receive the control information sent by the network device on the first time-frequency resource of the first time-frequency resource set, and under the condition that the terminal device determines that the second time-frequency resource set exists according to the second indication information, the terminal device repeatedly monitors the control information so as to receive the control information sent by the network device on the second time-frequency resource of the second time-frequency resource set, wherein a plurality of time-frequency resources contained in the first time-frequency resource set comprise the first time-frequency resource, a plurality of time-frequency resources contained in the second time-frequency resource set comprise the second time-frequency resource, the second time frequency resource set is a time frequency resource set used for the network device to repeatedly send control information, the first time frequency resource set and the second time frequency resource set can belong to the same transmission cycle of the control information in the time domain, the existence of the second time frequency resource set indicates that the second time frequency resource used for the network device to repeatedly send the control information to the terminal device exists, and correspondingly, the absence of the second time frequency resource indicates that the second time frequency resource used for the network device to repeatedly send the control information to the terminal device does not exist.

In the application, the terminal device may receive first indication information sent by the network device, so that the control information is received on a first time-frequency resource of a first time-frequency resource set according to an indication of the first indication information, the terminal device may also receive second indication information sent by the network device, and the terminal device repeatedly monitors the control information under the condition that the second indication information indicates that a second time-frequency resource set exists, so that the control information can be repeatedly monitored in the second time-frequency resource of the second time-frequency resource set, and the terminal device may receive at least two identical control information within one transmission period of the control information, thereby improving the accuracy of the terminal device in receiving the control information; in addition, the specific implementation mode of repeatedly sending the control information is provided, and the realizability of the scheme is improved.

Various possible design benefits and specific implementation manners of the second aspect of the present application may refer to the first aspect, and are not described in detail here.

In a third aspect, an embodiment of the present application provides a signal sending method, where the method includes:

the network device may send, to the terminal device, a message containing first indication information indicating a first set of time-frequency resources, and the network device may send, to the terminal device, control information on a first time-frequency resource in the first set of time-frequency resources, and, in a case where the network device determines, according to a relevant factor, that a preset condition for repeatedly sending control information is met, the network device may further repeatedly send, to the terminal device, control information on a second time-frequency resource in the second set of time-frequency resources, where a plurality of time-frequency resources included in the first set of time-frequency resources include the first time-frequency resource, a plurality of time-frequency resources included in the second set of time-frequency resources include the second time-frequency resource, the second set of time-frequency resources is a set of time-frequency resources for the network device to repeatedly send control information, and the first set of time-frequency resources and the second set of time-frequency resources may belong to a same transmission period of control information in a time domain, the relevant factors include the distance between the network device and the terminal device or the communication quality between the network device and the terminal device.

In the application, the network device sends the first indication information to the terminal device, so that the terminal device can determine the first time-frequency resource set according to the first indication information and obtain the control information on the first time-frequency resource of the first time-frequency resource set, and the network device can also repeatedly send the control information to the terminal device on the second time-frequency resource in the second time-frequency resource set under the condition of meeting the preset repeated sending of the control information, so that the terminal device can receive the control information repeatedly sent by the network device on the second time-frequency resource of the second time-frequency resource set, and the terminal device can receive at least two same control information in one transmission cycle of the control information, thereby improving the accuracy of the terminal device in receiving the control information; in addition, the network device can repeatedly send the control information to the terminal device only when the preset condition for repeatedly sending the control information is determined to be met according to the relevant factors, so that the waste of communication resources is avoided.

In one possible design of the third aspect, the preset condition for repeatedly sending the control information includes that a distance between the network device and the terminal device is greater than or equal to a first preset threshold and/or a communication quality between the network device and the terminal device is lower than or equal to a second threshold.

In the application, specific content of the preset condition for repeatedly sending the control information is provided, and the operability of the scheme is improved.

In a possible design of the third aspect, the first time-frequency resource set and the second time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in a time domain, where the symbol may be an orthogonal frequency division multiplexing symbol, a general filtering multi-carrier symbol, or a generalized frequency division multiplexing symbol.

In a possible design of the third aspect, the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain is not more than three.

In one possible design of the third aspect, the first set of time-frequency resources occupies one symbol in the time domain, and the second set of time-frequency resources occupies one or two symbols in the time domain.

In a possible design of the third aspect, the first time-frequency resource and the second time-frequency resource occupy the same frequency-domain resource.

In a possible design of the third aspect, the first time-frequency resource and the second time-frequency resource occupy equal number of symbols in the time domain.

In a fourth aspect, an embodiment of the present application provides a signal receiving method, where the method includes:

the terminal device may receive the first indication information sent by the network device, and determine the location of the first set of time and frequency resources according to the indication of the first indication information, monitoring control information on the first set of time-frequency resources to receive the control information sent by the network device on the first time-frequency resources in the first set of time-frequency resources, the terminal device further determining the position of the second set of time-frequency resources according to the first set of time-frequency resources and a preset rule, and repeatedly monitoring the control information on the second set of time-frequency resources, in case the network device repeatedly transmits control information on a second time frequency resource of the second set of time frequency resources, the terminal device may receive control information repeatedly transmitted by the network device on a second time-frequency resource of a second set of time-frequency resources, the first time-frequency resource set and the second time-frequency resource set can belong to the same transmission period of the control information in the time domain.

In the application, the terminal device may receive the first indication information sent by the network device, so as to receive the control information on the first time-frequency resource of the first time-frequency resource set according to the indication of the first indication information, the terminal device may further determine the position of the second time-frequency resource set according to the preset rule, and repeatedly monitor the control information on the second time-frequency resource set, and then, under the condition that the network device repeatedly sends the control information on the second time-frequency resource of the second time-frequency resource set, the terminal device may receive the control information repeatedly sent by the network device on the second time-frequency resource, and then the terminal device may receive at least two identical control information in one transmission cycle of the control information, thereby improving the accuracy of the terminal device in receiving the control information.

In a possible design of the fourth aspect, the preset rule may include that the second set of time-frequency resources and the first set of time-frequency resources are located on consecutive and different symbols in the same timeslot, or that the second set of time-frequency resources and the first set of time-frequency resources are separated by X timeslots, or that the second set of time-frequency resources and the first set of time-frequency resources are separated by Y milliseconds.

In the application, various possible implementation modes of the preset rule are specifically provided, and the realizability and operability of the scheme are improved.

In a possible design of the fourth aspect, the preset rule may further include a number of symbols occupied by the second time-frequency resource set in the time domain.

In the application, the number of symbols of the second time frequency resource set in the time domain is further determined, and the position of the second time frequency resource set is combined, so that the terminal equipment can comprehensively monitor all time frequency resources contained in the second time frequency resource set, and the monitoring omission is avoided.

In a possible design of the fourth aspect, the preset rule may further include that the frequency domain resources occupied by the first time frequency resources are the same as the frequency domain resources occupied by the second time frequency resources.

In the application, since the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same, the terminal device can accurately position the position of the second time-frequency resource after determining the positions of the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource on the time domain, so that the terminal device only needs to repeatedly monitor and control the resources on the second time-frequency resource, and the load of the terminal device is reduced.

For other beneficial effects and implementation manners of various possible designs of the fourth aspect of the present application, reference may be made to the third aspect, which is not described herein any more.

In a fifth aspect, an embodiment of the present application provides a signal sending method, where the method may include:

the network equipment determines M first signals used for sending first information, the network equipment sends third indication information to the terminal equipment, the third indication information is used for indicating the time-frequency resource position of a reference signal corresponding to the first signal, the network equipment respectively bears the M second information on the M first signals and sends the M second information to the terminal equipment, the first signals are signals used for bearing data, M is an integer larger than 1, and the second information is information obtained by coding the first information.

In one possible design of the fifth aspect, the method may further include:

the network device sends fourth indication information to the terminal device, where the fourth indication information is used to indicate a redundancy version corresponding to second information carried by each of the M first signals, where N is an integer greater than 1, and M is an integer multiple of N.

In one possible design of the fifth aspect, the third indication information may be included in control information sent by the network device to the terminal device.

In one possible design of the fifth aspect, the fourth indication information may be included in control information sent by the network device to the terminal device.

In a sixth aspect, an embodiment of the present application provides a signal receiving method, where the method may include:

the terminal device receives third indication information sent by the network device, where the third indication information is used to indicate a time-frequency resource location of a reference signal corresponding to each of the M first signals, and the terminal device receives M second information sent by the network device through the M first signals.

For various possible designs of the sixth aspect of the embodiments of the present application, reference may be made to the fifth aspect.

In a seventh aspect, an embodiment of the present application further provides a signal sending method, where the method may include:

and the terminal equipment determines M pieces of fourth information, wherein any one of the M pieces of fourth information is information obtained by encoding the third information, the M pieces of fourth information are respectively carried on the M second signals and sent to the network equipment, and the terminal equipment receives the fifth indication information and determines the time-frequency resource position of the reference signal corresponding to each second signal in the M second signals according to the fifth indication information.

In one possible design of the seventh aspect, the method may further include: the terminal equipment sends sixth indication information to the network equipment, wherein the sixth indication information is used for indicating the redundancy version corresponding to the fourth information carried in the second signal

In an eighth aspect, an embodiment of the present application further provides a signal receiving method, where the method may include:

the network device receives at least one second signal in the M second signals, and sends fifth indication information to the terminal device, where the fifth indication information is used to indicate a time-frequency resource location of a reference signal corresponding to each second signal in the M second signals. For various possible designs of the eighth aspect of the embodiment of the present application, reference may be made to the seventh aspect.

In a ninth aspect, embodiments of the present application provide a network device, which may include a sending unit,

the terminal device comprises a sending unit, a sending unit and a sending unit, wherein the sending unit is used for sending first indication information to the terminal device, the first indication information is used for indicating a first time-frequency resource set, the sending unit is also used for sending second indication information to the terminal device, the second indication information is used for indicating the existence or nonexistence of a second time-frequency resource set, the sending unit is also used for sending control information to the terminal device on the first time-frequency resource in the first time-frequency resource set, the sending unit is also used for sending the control information to the terminal device on the second time-frequency resource in the second time-frequency resource set under the condition that the second indication information indicates the existence of the second time-frequency resource set, and a plurality of time-frequency resources contained in the second time-frequency resource set comprise the second time-frequency resource, and the first time-frequency resource set and the second time-frequency resource set can belong to the same transmission period of the control information in the time domain.

In a tenth aspect, an embodiment of the present application provides a terminal device, where the terminal device may include a receiving unit:

the receiving unit is further configured to receive control information sent by the network device on a first time-frequency resource of the first time-frequency resource set, and the receiving unit is further configured to receive control information sent by the network device on a second time-frequency resource of the second time-frequency resource set when the second indication information indicates that the second time-frequency resource set exists, where the first time-frequency resource set and the second time-frequency resource set may belong to a same transmission period of the control information in a time domain.

In an eleventh aspect, an embodiment of the present application provides a communication apparatus, including: at least one processor, at least one memory; at least one memory for storing instructions; the at least one processor is configured to execute the instructions in the at least one memory to cause the communication device to perform the method of any of the preceding first or second aspects.

In a twelfth aspect, embodiments of the present application provide a computer-readable storage medium having instructions stored therein, which when executed on a computer, cause the computer to perform the method of any one of the first or second aspects.

In a thirteenth aspect, embodiments of the present application provide a computer program product containing instructions that, when executed on a computer, cause the computer to perform the method of any of the first or second aspects described above.

For the advantageous effects of the ninth to thirteenth aspects of the present application and various possible implementations of the design, reference may be made to the first aspect.

In a fourteenth aspect, an embodiment of the present application provides a network device, which may include a sending unit,

the terminal device comprises a sending unit, a sending unit and a sending unit, wherein the sending unit is used for sending first indication information to the terminal device, the first indication information is used for indicating a first time-frequency resource set, the sending unit is also used for sending control information to the terminal device on a first time-frequency resource in the first time-frequency resource set, the sending unit is also used for repeatedly sending the control information to the terminal device on a second time-frequency resource in a second time-frequency resource set under the condition that a preset condition for repeatedly sending the control information is met, and the first time-frequency resource set and the second time-frequency resource set can belong to the same transmission period of the control information in a time domain.

In a fifteenth aspect, embodiments of the present application provide a terminal device, which may include a receiving unit, a determining unit, and a monitoring unit,

the receiving unit may receive first indication information sent by the network device, and after the determining unit determines the position of the first time-frequency resource set according to the indication of the first indication information, the monitoring unit monitors the control information on the first time-frequency resource set to receive the control information sent by the network device on the first time-frequency resource in the first time-frequency resource set, the determining unit may further determine the position of the second time-frequency resource set according to the first time-frequency resource set and a preset rule, and the monitoring unit repeatedly monitors the control information on the second time-frequency resource set, and in a case where the network device repeatedly sends the control information on the second time-frequency resource in the second time-frequency resource set, the terminal device may receive the control information repeatedly sent by the network device on the second time-frequency resource in the second time-frequency resource set.

In a sixteenth aspect, an embodiment of the present application provides a communication apparatus, including: at least one processor, at least one memory; at least one memory for storing instructions; the at least one processor is configured to execute the instructions in the at least one memory to cause the communication device to perform the method of any of the preceding third or fourth aspects.

In a seventeenth aspect, embodiments of the present application provide a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of any one of the third or fourth aspects.

In an eighteenth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the third or fourth aspects described above.

For the advantageous effects of the fourteenth to eighteenth aspects of the present application and various possible implementations of the design, reference may be made to the third aspect.

Drawings

Fig. 1a is a schematic network architecture diagram of an application environment of a signal processing method according to an embodiment of the present application;

fig. 1b is a schematic network architecture diagram of an application environment of a signal processing method according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a signal processing method according to an embodiment of the present application;

fig. 3 is a schematic diagram of positions of a first time-frequency resource set and a second time-frequency resource set according to an embodiment of the present application;

fig. 4 is another schematic diagram of positions of a first time-frequency resource set and a second time-frequency resource set according to an embodiment of the present application;

fig. 5a is a schematic diagram of a manner of dividing a first time-frequency resource and a second time-frequency resource according to an embodiment of the present application;

fig. 5b is another schematic diagram of a dividing manner of the first time-frequency resource and the second time-frequency resource provided in the embodiment of the present application;

fig. 5c is another schematic diagram of a manner of dividing the first time-frequency resource and the second time-frequency resource according to the embodiment of the present application;

fig. 6 is a schematic flow chart of a signal processing method according to an embodiment of the present disclosure;

fig. 7 is a schematic flowchart of another signal processing method according to an embodiment of the present application;

fig. 8 is a schematic flowchart of a signal processing method according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

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

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

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

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

fig. 15 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and are merely descriptive of the various embodiments of the application and how objects of the same nature can be distinguished. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Embodiments of the present application are described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention.

The technical scheme of the embodiment of the application can be applied to various data processing 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 term "system" may be used interchangeably with "network". CDMA systems may implement wireless technologies such as Universal Terrestrial Radio Access (UTRA), CDMA2000, and the like. UTRA may include Wideband CDMA (WCDMA) technology and other CDMA variant technologies. CDMA2000 may cover the Interim Standard (IS) 2000(IS-2000), IS-95 and IS-856 standards. TDMA systems may implement wireless technologies such as global system for mobile communications (GSM). The OFDMA system may implement wireless technologies such as evolved universal terrestrial radio access (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash OFDMA, etc. UTRA and E-UTRA are UMTS as well as UMTS evolved versions. Various versions of 3GPP in Long Term Evolution (LTE) and LTE-based evolution are new versions of UMTS using E-UTRA. The fifth Generation (5Generation, abbreviated as "5G") communication system and the New Radio (NR) are the next Generation communication systems under study. In addition, the communication system can also be applied to future-oriented communication technologies, and the technical solutions provided by the embodiments of the present application are all applied. The system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems. It should be understood that, in the embodiment of the present application, only the control information transmission method is applied to the 5G system as an example, and the description is made.

Fig. 1a and fig. 1b respectively show two possible network architecture diagrams of an application environment of the signal processing method provided by the embodiment of the present application, and referring to fig. 1a and fig. 1b, a communication system includes a network device 10 and a terminal device 20, and a communication connection between the network device 10 and the communication device 20, although only one network device 10 and two terminal devices 20 are shown in fig. 1a and fig. 1b, it should be understood that this is only an example, and the embodiment of the present application does not limit the number of the network devices 10 and the communication devices 20.

In the embodiment of the present application, in a 5G-NR system, communication (referred to as "D2D communication") of a terminal device (D2D) may be implemented, where D2D is a technology for direct communication between a terminal device and a terminal device, and communication between the terminal device and the terminal device is located in a sidelink, which no longer requires relay of a base station.

In an implementation manner, the network device 10 may be specifically represented as a base station, and as shown in fig. 1a, in an operating mode of D2D communication, the base station allocates time-frequency resources in a resource pool to the terminal device 20, and then the base station sends control information to the terminal device; in another implementation, the network device 10 may also be represented as a specific terminal device in the multiple terminal devices 20, as shown in fig. 1b, in a multicast scenario of D2D communication, a time-frequency resource in a resource pool may be allocated to each D2D terminal device 20 by the specific terminal device, and then the specific terminal device sends control information to the terminal device 20.

In the embodiment of the present application, the base station may include various macro base stations, micro base stations, relay stations, access points, roadside units, and the like, and certainly, the functions of the base station of the present application may also be implemented by a built-in module or unit, which is built in the macro base station, the micro base stations, the relay stations, the access points, and the roadside units. In systems using different radio access technologies, names of devices having functions of base stations may be different, for example, in an LTE system, the device is called an evolved node B (eNB or eNodeB), in an NR system, the device is called a gNB, and in a third generation 3G system, the device is called a node B (node B).

A terminal device, also called a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), a terminal, etc., is a device that provides voice and/or data connectivity to a user, for example, a handheld device, a vehicle-mounted device, etc. with wireless connectivity. Currently, some examples of terminal devices are: a mobile phone, a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety, a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), and the like.

In the embodiment of the application, in order to improve the accuracy of receiving the control information by the terminal device, the network device may send the control information to the terminal device not only on the first time-frequency resource of the first time-frequency resource set, but also on the second time-frequency resource of the second resource set, so that the terminal device may receive two identical control information in the same control information transmission period. The way for the terminal device to acquire the second time-frequency resource set may be in different manners, and specifically, in an implementation manner, the network device may send second indication information to the terminal device, where the second indication information indicates that the second time-frequency resource set exists or does not exist; in another implementation, a preset rule may be stored in the terminal device, so that the terminal device may determine the second time-frequency resource set according to the first time-frequency resource set and the preset rule, and the two manners are described below.

Firstly, the network equipment sends second indication information to the terminal equipment

Referring to fig. 2, fig. 2 is a schematic view of an interaction flow between a network device and a terminal device according to an embodiment of the present application, where the signaling method according to the embodiment of the present application may include the following steps:

201. the network equipment sends the first indication information to the terminal equipment.

In this embodiment of the application, the first indication information sent by the network device to the terminal device may be included in a Physical Broadcast Channel (PBCH), and specifically, may be a PBCH periodically broadcast by the network device. When the terminal device initially enters a cell where the current network device is located, or the terminal device may blindly detect a synchronization signal/broadcast channel block (SS/PBCH block, SSB) at intervals, perform timing synchronization after receiving an SSB broadcasted by the network device, and acquire the first indication information from the PBCH after acquiring the PBCH.

In this embodiment of the application, the first indication information is used to indicate a position of a first time-frequency resource set, the first time-frequency resource set may include multiple time-frequency resources, and a first time-frequency resource of the multiple time-frequency resources is used for a network device to send control information to a terminal device. The symbol positions occupied by the first time-frequency resource and the first time-frequency resource set in the time domain may overlap.

The first time-frequency Resource SET may be a position of a time-frequency Resource SET occupied by a Physical Downlink Control Channel (PDCCH) of type 0, or may be a position of a time-frequency Resource SET occupied by a Physical Downlink Control Channel (PDCCH) of type 1, where the time-frequency Resource SET may be specifically represented as a Control Resource SET (core SET), or may be represented as other types of time-frequency Resource units; the control information is specifically represented as Downlink Control Information (DCI), or may be sidelink control information, and a control resource set is defined in a 5G-NR system, where one control resource set includes a plurality of resource blocks in a frequency domain, and includes P consecutive symbols in a time domain, and a value of P is 1, 2, or 3 at present, it should be understood that the foregoing examples of the time-frequency resource set and the control information are only for convenience of understanding the present solution, and are not limited herein.

202. The network device determines the indication type of the second indication information sent to the terminal device.

In some embodiments of the present application, the network device may determine, according to several related factors, whether the second indication information sent to the terminal device is used to indicate that the second time-frequency resource set exists or indicate that the second time-frequency resource does not exist, where the related factors include, but are not limited to, a distance between the network device and the terminal device or a communication quality between the network device and the terminal device. The indication type of the second indication information includes existence of a second time-frequency resource set and absence of the second time-frequency resource, the existence of the second time-frequency resource set indicates that the second time-frequency resource exists for the network device to repeatedly send the control information to the terminal device, and correspondingly, the absence of the second time-frequency resource indicates that the second time-frequency resource does not exist for the network device to repeatedly send the control information to the terminal device.

Specifically, as an implementation manner, the network device may acquire the position of the terminal device during the process of accessing the terminal device to the network and during the subsequent information interaction with the terminal device, so that when the distance between the terminal device and the network device is greater than or equal to a first preset threshold, second indication information sent by the network device to the terminal device indicates that a second time-frequency resource set exists; when the distance between the terminal device and the network device is smaller than the first preset threshold, the second indication information sent by the network device to the terminal device may indicate that the second time-frequency resource set does not exist.

As another implementation manner, in the process of information interaction between the network device and the terminal device, the communication quality between the network device and the terminal device may be obtained, so that when the communication quality between the network device and the terminal device is lower than or equal to a second preset threshold, second indication information sent by the network device to the terminal device indicates that a second time-frequency resource set exists; when the communication quality between the network device and the terminal device is higher than the second preset threshold, the second indication information sent by the network device to the terminal device may indicate that the second time-frequency resource set does not exist. It should be understood that the above examples are only to prove the feasibility of the present solution, and the network device may also determine the content of the second indication information sent to the terminal in combination with other factors, which is not described in detail herein.

203. And the network equipment sends the second indication information to the terminal equipment.

In some embodiments of the present application, after determining the type of the second indication information through step 203, the network device may send the second indication information to the terminal device, where the second indication information is used to indicate that the second time-frequency resource set exists or does not exist, so that the terminal device may receive the second indication information, may execute corresponding operations according to the indication of the second indication information, and when the second indication information indicates that the second time-frequency resource set exists, execute steps 206 to 208; when the second indication information indicates that the second time frequency resource set does not exist, the steps 206 to 208 are not executed again, wherein the steps 206 to 208 describe in detail the process of the network device repeatedly sending the control information to the terminal device through the second time frequency resource of the second time frequency resource set.

The second time-frequency resource set may include a plurality of time-frequency resources, where the second time-frequency resources included in the plurality of time-frequency resources are used for the network device to repeatedly send control information to the terminal device, and symbol positions occupied by the second time-frequency resources and the second time-frequency resource set in the time domain may overlap. The existence of the second time frequency resource set refers to that the network equipment repeatedly sends control information to the terminal equipment through the second time frequency resource on the second time frequency resource set, and the absence of the second time frequency resource set refers to that the network equipment does not repeatedly send the control information to the terminal equipment.

In this embodiment of the application, when the second indication information indicates that the second time-frequency resource exists, the first time-frequency resource set and the second time-frequency resource set belong to the same transmission period of the control information in the time domain, that is, the network device may repeatedly send the control information on the first time-frequency resource and the second time-frequency resource in the same period.

As an implementation manner, referring to fig. 3, fig. 3 is a schematic diagram of positions of a first time-frequency resource set and a second time-frequency resource set in a time domain, where the first time-frequency resource set and the second time-frequency resource set may be located on consecutive and different symbols in a same time slot, respectively, so that a terminal device may receive at least two identical control information on consecutive symbols when determining that the second time-frequency resource set exists according to second indication information, thereby not only improving a success rate of detecting the control information by the terminal device, but also saving time for the terminal device to monitor the control information.

As another implementation manner, referring to fig. 4, fig. 4 is a schematic diagram of positions of a first time-frequency resource set and a second time-frequency resource set in a time domain, where the first time-frequency resource set and the second time-frequency resource set may also be located in different time slots in the time domain, which enriches an implementation scheme of the present scheme, so that a network device may flexibly determine the position of the second time-frequency resource set in combination with an actual situation, thereby enhancing flexibility of the present scheme.

In this embodiment of the application, the first time-frequency resource set and the second time-frequency resource set may occupy at least two symbols in the time domain, and specifically, referring to fig. 4, the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain may be the same; referring to fig. 3, the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain may also be different, where the symbols in the embodiment of the present application may include, but are not limited to, any of the following: orthogonal Frequency Division Multiplexing (OFDM) symbols, Universal Filtered Multicarrier (UFMC) symbols, Generalized Frequency Division Multiplexing (GFDM) symbols, and so on.

Optionally, the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain is not more than three, and since the number of symbols of the time-frequency resource reserved for the control information in the time domain is three, under the condition that the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain is not more than three, the overhead of the time-frequency resource occupied by the control information as a whole can be kept low.

Optionally, the first time-frequency resource set occupies one symbol in the time domain, the second time-frequency resource set occupies one or two symbols in the time domain, and the number of symbols occupied by the second time-frequency resource set in the time domain is greater than the number of symbols occupied by the first time-frequency resource set in the time domain, so that it can be ensured that the network device can send at least one complete piece of control information through the second time-frequency resource set, it is ensured that the terminal device can receive two or even three pieces of the same control information, and the success rate of detecting the control information by the terminal device is improved.

In this embodiment of the application, the second indication information may be used to indicate presence or absence of a second time-frequency resource set used for the network device to repeatedly send the control information to the terminal device, and specifically, the second indication information may respectively indicate presence or absence of the second time-frequency resource set by taking two different values, where one value is used to indicate absence of the second time-frequency resource set, and the other value is used to indicate presence of the second time-frequency resource set. As an example, for example, two values of the second indication information are respectively 0 and 1, when the second indication information is 0, it represents that the second time-frequency resource set does not exist, that is, the network device does not repeatedly send the control information to the terminal device on the second time-frequency resource in the second time-frequency resource set, and the terminal device may monitor the control information only on the first time-frequency resource set, but not on the second time-frequency resource set; when the second indication information is 1, it represents that the second time-frequency resource set exists, that is, the network device may repeatedly send control information to the terminal device on the second time-frequency resource in the second time-frequency resource set, and then the terminal device may monitor the control information on both the first time-frequency resource set and the second time-frequency resource set, it should be understood that the foregoing example is only convenient to understand the present solution, and it may also be that when the first indication information is 1, it represents that the first indication information does not exist; when the first indication information is 0, it represents the presence, or the presence and absence may be distinguished by other numbers.

Optionally, the second indication information may be used to indicate not only the existence or non-existence of the second time-frequency resource set, but also the position of the second time-frequency resource set in the time domain. Specifically, the second indication information may respectively indicate a plurality of different meanings through different values, one of the values is used to indicate that there is no second time-frequency resource set, the other value is used to indicate that the second time-frequency resource set and the first time-frequency resource set are respectively located on different continuous symbols in the same time slot in the time domain, and the other value is used to indicate that the second time-frequency resource set and the first time-frequency resource set are respectively located on different time slots in the time domain. As an example, referring to table 1 below, the second indication information may indicate different meanings by taking values of 0, 1, and 2, respectively, where when the second indication information takes value of 0, it indicates that there is no second time-frequency resource set; when the value of the second indication information is 2, indicating that the second time-frequency resource set and the first time-frequency resource set are respectively positioned on continuous and different symbols in the same time slot on the time domain; and when the second indication information is 3, indicating that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in the time domain. The second indication information sent by the network device may also be used to indicate the location of the second time-frequency resource set, so that the terminal device may preliminarily determine the location of the second time-frequency resource set according to the second indication information, thereby reducing the range of the terminal device for monitoring the control information and being beneficial to reducing the load of the terminal device.

TABLE 1

Optionally, the second indication information may be used to indicate not only the existence or nonexistence of the second time-frequency resource set, but also indicate the number of symbols occupied by the second time-frequency resource set in a time period. The second indication information may respectively indicate a plurality of different meanings through different values, specifically, one of the values is used to indicate that the second time-frequency resource set does not exist; the other value is used for indicating that a second time frequency resource set exists, and in a time period, the number of symbols occupied by the second time frequency resource on a time domain is 1; the other value is used for indicating that a second time-frequency resource set exists, and in a time period, the number of symbols occupied by the second time-frequency resource set in a time domain is 2; and the other value is used for indicating that a second time-frequency resource set exists, and in a time period, the number of symbols occupied by the second time-frequency resource set in the time domain is three, and the like. For example, referring to table 2 below, the second indication information may be respectively taken as 0, 1, 2, and 3, where when the second indication information is taken as 0, it indicates that there is no second time-frequency resource set; when the value of the second indication information is 1, indicating that a second time-frequency resource set exists and the second time-frequency resource set occupies 1 symbol in the time domain; when the value of the second indication information is 2, indicating that a second time-frequency resource set exists and the second time-frequency resource set occupies 2 symbols in the time domain; and when the second indication information value is 3, indicating that a second time frequency resource set exists and the second time frequency resource set occupies three symbols in the time domain. The second indication information sent by the network device may also be used to indicate the number of symbols of the second time-frequency resource set, so that the terminal device may determine the number of symbols of the second time-frequency resource set according to the second indication information, and in the process of monitoring the control information, if the control information has been repeatedly monitored in L symbols, when the L symbols are equal to the number of symbols indicated by the second indication information, the terminal device does not need to monitor the control information on other time-frequency resources, which is beneficial to reducing the load of the terminal device.

TABLE 2

In this embodiment of the application, the length of one time period includes, but is not limited to, one transmission cycle of control information, one time slot, multiple discontinuous time slots in one transmission cycle of control information, multiple continuous time slots, one subframe, multiple continuous subframes, or multiple discontinuous subframes in one transmission cycle of control information, and the like, and it should be understood that, in this embodiment of the application, the number of symbols occupied by the second time frequency resource set in the time domain, which is indicated by the second indication information, is both the number of symbols occupied by the second time frequency resource set in the time domain in one time period, and for simplifying the description, when the number of symbols occupied by the second time frequency resource set in the time domain is described subsequently, it is not particularly indicated.

In the case that the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain is not more than three, when the number of symbols occupied by the first time-frequency resource set in the time domain is 1, the second indication information may respectively indicate three different meanings through three different values, specifically, one value is used to indicate that a second time-frequency resource set does not exist, the other value is used to indicate that the second time-frequency resource set exists and occupies 1 symbol in the time domain, and the other value is used to indicate that the second time-frequency resource set exists and occupies 2 symbols in the time domain, for example, see table 3 below, the second indication information may indicate different meanings by respectively taking values of 0, 1, and 2, wherein when the second indication information takes value of 0, it indicates that the second time-frequency resource set does not exist; when the value of the second indication information is 1, indicating that a second time-frequency resource set exists and the second time-frequency resource set occupies 1 symbol in the time domain; and when the second indication information value is 2, indicating that a second time frequency resource set exists and the second time frequency resource set occupies 2 symbols in the time domain.

TABLE 3

Value of the second indication information	Meaning of the second indication information
		0	The second set of control resources does not exist
1	A second set of control resources exists and occupies 1 symbol
		2	The second set of control resources exists and occupies 2 symbols
3	Retention

When the number of symbols occupied by the first time-frequency resource set in the time domain is 2, the second indication information may respectively indicate three different meanings through three different values, specifically, one value is used to indicate that the second time-frequency resource set does not exist, the other value is used to indicate that the second time-frequency resource set exists and the second time-frequency resource set occupies 1 symbol in the time domain, for example, see table 4 below, the second indication information may respectively indicate two different meanings through respectively taking values of 0 and 1, and when the second indication information takes a value of 0, it indicates that the second time-frequency resource set does not exist; and when the value of the second indication information is 1, indicating that a second time frequency resource set exists and the second time frequency resource set occupies 1 symbol in the time domain.

TABLE 4

Value of the second indication information	Meaning of the second indication information
		0	The second set of control resources does not exist
1	A second set of control resources exists and occupies 1 symbol
		2	Retention
3	Retention

Optionally, the second indication information may be used to indicate the existence or non-existence of the second time-frequency resource set, the position of the second time-frequency resource set in the time domain, and the number of symbols occupied by the second time-frequency resource in the time domain. The second indication information may also indicate a plurality of different meanings through different values, as an implementation manner, the second indication information may respectively express four different meanings through four different values, specifically, one of the values is used to indicate that the second time-frequency resource set does not exist; another value indicates that the second control resource set is located in a different time slot from the first resource set in the time domain; the other value indicates that the second control resource set and the first resource set are positioned on continuous and different symbols in the same time slot on the time domain and occupy 1 symbol; another value indicates that the second control resource set and the first resource set are located on consecutive and different symbols in the same time slot in the time domain and occupy 2 symbols, for example, see table 5 below, the second indication information may be respectively set to 0, 1, 2, and 3, where when the second indication information is set to 0, it indicates that there is no second time-frequency resource set; when the value of the second indication information is 1, the second indication information is used for indicating that the second control resource set and the first resource set are located in different time slots on the time domain; when the value of the second indication information is 2, the second indication information is used for indicating that the second control resource set and the first resource set are positioned on continuous and different symbols in the same time slot on the time domain, and occupy 2 symbols; and when the second indication information value is 3, the second indication information value is used for indicating that the second control resource set and the first resource set are positioned on continuous and different symbols in the same time slot on the time domain, and occupy 1 symbol. The second indication information sent by the network device not only indicates the position of the second time-frequency resource set, but also indicates the number of symbols occupied by the second time-frequency resource set, so that the terminal device can accurately position the second time-frequency resource set by combining the second indication information, the range of monitoring control information by the terminal device is reduced, and the load of the terminal device is favorably reduced.

TABLE 5

As another implementation manner, the second indication information may respectively express four different meanings through five different values, specifically, one of the values is used to indicate that the second time-frequency resource set does not exist; the other value indicates that the second control resource set and the first resource set are positioned in different time slots in the time domain and occupy 1 symbol; the other value indicates that the second control resource set and the first resource set are positioned in different time slots in the time domain and occupy 2 symbols; the other value indicates that the second control resource set and the first resource set are positioned on continuous and different symbols in the same time slot on the time domain and occupy 1 symbol; another value indicates that the second control resource set and the first resource set are located on consecutive and different symbols in the same time slot in the time domain and occupy 2 symbols, for example, see table 6 below, the second indication information may be respectively set to 0, 1, 2, and 3, where when the second indication information is set to 0, it indicates that there is no second time-frequency resource set; when the value of the second indication information is 1, the second indication information is used for indicating that the second control resource set and the first resource set are located in different time slots on the time domain and occupy 2 symbols; when the value of the second indication information is 2, the second indication information is used for indicating that the second control resource set and the first resource set are located in different time slots on the time domain and occupy 1 symbol; when the value of the second indication information is 3, the second indication information is used for indicating that the second control resource set and the first resource set are positioned on continuous and different symbols in the same time slot on the time domain, and occupy 2 symbols; and when the value of the second indication information is 4, the second indication information is used for indicating that the second control resource set and the first resource set are positioned on continuous and different symbols in the same time slot on the time domain, and occupy 1 symbol.

TABLE 6

It should be understood that the above examples in tables 1 to 6 are only for convenience of understanding the present disclosure, the corresponding relationship between the value of the second indication information and the meaning of the second indication information may be flexibly set according to an actual situation, the value of the second indication information may also be other numbers, or more other meanings may also be indicated by other values, the value of the specific second indication information and the meaning of the expression should be flexibly determined by combining the actual situation, and the specific examples are not limited herein.

Optionally, the number of bits occupied by the second indication information is not greater than two, and since there are 2 reserved bits in the PBCH, when the number of bits occupied by the second indication information is not greater than two, the second indication information may be placed in the two reserved bits in the PBCH, so that no new bit needs to be added in the PBCH, and new overhead added by the PBCH is avoided.

It should be understood that the embodiment of the present application is not limited to the execution steps of step 201 and step 203, and step 201 and step 203 may be executed simultaneously; step 201 may be executed first, and then step 203 may be executed; step 203 may be performed first, and then step 201 may be performed.

204. The network device sends control information to the terminal device on a first time-frequency resource in the first set of time-frequency resources.

In this embodiment, the network device may periodically send the control information to the terminal device on the first time-frequency resource in the first time-frequency resource set.

205. And the terminal equipment determines the position of the first time-frequency resource set according to the first indication information.

206. The terminal device monitors the control information in the first set of time-frequency resources to receive the control information sent by the network device on the first time-frequency resources of the first set of time-frequency resources.

In the embodiment of the application, after the terminal device acquires the first indication information, that is, the position of the first time-frequency resource set is acquired, because the first time-frequency resource set includes a plurality of time-frequency resources, the terminal device monitors control information at the position of each time-frequency resource in the plurality of time-frequency resources, and thus receives the control information sent by the network device at the position of the first time-frequency resource.

It should be understood that, the embodiment of the present application does not limit the execution sequence of step 203 and steps 204 to 206, and step 203 may be executed first, and then step 204 to step 206 may be executed; step 204 to step 206 may be performed first, and then step 203 may be performed.

207. And under the condition that the second indication information indicates that the second time frequency resource set exists, the network equipment repeatedly sends control information to the terminal equipment on the second time frequency resource in the second time frequency resource set.

In this embodiment, when the second indication information indicates that the second time-frequency resource set exists, the network device may repeatedly send the control information to the terminal device on the second time-frequency resource of the second time-frequency resource set, and the network device may repeatedly send the control information to the terminal device in a periodic sending manner.

In this embodiment, a network device repeatedly sends at least two pieces of same control information to a terminal device through a first time-frequency resource and a second time-frequency resource, respectively, a Control Channel Element (CCE) is defined in a 5G-NR system, where one CCE includes 6 Resource Element Groups (REGs), one REG occupies 1 symbol in a time domain and 12 subcarriers in a frequency domain, one piece of control information may be carried in Q CCEs, a value of Q is one of 1, 2, 4, 8, or 16, in the current 5G-NR system, both the first time-frequency resource and the second time-frequency resource may be specifically represented as multiple continuous or discontinuous, it should be understood that the first time-frequency resource and the second time-frequency resource may also be described by using other CCE resource elements, which is only taken as an example in the 5G-NR system, the sizes and description modes of the first time frequency resource and the second time frequency resource can be flexibly determined by combining with actual conditions.

Optionally, the first time-frequency resource and the second time-frequency resource occupy the same frequency domain resource, so that the network device may repeatedly send the control information in the same frequency domain, which is beneficial for the network device to complete the repeated sending operation of the control information and is also beneficial for the network device to manage the time-frequency resources.

The network device may repeatedly transmit the control information through the first time-frequency resource and the second time-frequency resource in various ways. Specifically, referring to fig. 5a to 5c, fig. 5a to 5c are schematic diagrams of three implementation manners of a first time-frequency resource and a second time-frequency resource provided in the embodiment of the present application, and fig. 5a to 5c all illustrate that a time-frequency resource unit corresponding to a block where each number is located is a CCE, and 2 CCEs can carry a complete piece of control information.

As an implementation manner, the number of symbols occupied by the first time-frequency resource and the second time-frequency resource in the time domain is equal, as shown in fig. 5a, when the first time-frequency resource set occupies 1 symbol in the time domain, and the second time-frequency resource set occupies 2 symbols in the time domain, the first time-frequency resource occupies 1 symbol in the time domain, the second time-frequency resource set also occupies 1 symbol in the time domain, the second time-frequency resource set includes two second time-frequency resources, two parts numbered 1 in the first time-frequency resource are both CCE1, the occupied time-frequency resource is one CCE, two parts numbered 2 in the first time-frequency resource are both CCE2, the occupied time-frequency resource is one CCE, two parts numbered 3 in the first time-frequency resource are both CCE3, and the occupied time-frequency resource is one CCE; the first symbol (i.e. the first second time frequency resource) and the second symbol (i.e. the second time frequency resource) in the second time frequency resource set are both divided in the same manner as the CCE of the first time frequency resource. Specifically, the network device may respectively send two different portions of the control information on two CCEs 1 of the first time-frequency resource, respectively send two different portions of the control information on two CCEs 1 of the second time-frequency resource in the first symbol, and respectively send two different portions of the control information on two CCEs 1 of the second time-frequency resource in the second symbol, that is, the second time-frequency resource collectively includes two second time-frequency resources, and each second time-frequency resource only occupies 1 symbol, and the modes of sending the first control information on 3 symbols are completely the same, so that the network device sends 3 pieces of the same control information to the terminal device, and thus the terminal device may receive 3 pieces of the same control information, so as to improve the accuracy of the control information received by the terminal device.

As another implementation manner, the number of symbols occupied by the first time-frequency resource and the second time-frequency resource in the time domain is not equal, and the division manner in the frequency domain is the same, as shown in fig. 5b, when the first time-frequency resource set occupies 1 symbol in the time domain, and the second time-frequency resource set occupies 2 symbols in the time domain, the first time-frequency resource occupies 1 symbol in the time domain, the second time-frequency resource occupies 2 symbols in the time domain, both parts numbered 1 in the first time-frequency resource are CCE1, the size of the occupied time-frequency resource is one CCE, both parts numbered 2 in the first time-frequency resource are CCE2, the size of the occupied time-frequency resource is one CCE, both parts numbered 3 in the first time-frequency resource are CCE3, and the size of the occupied time-frequency resource is one CCE; two symbols occupied by the second time-frequency resource in the time domain can be regarded as a whole, that is, in fig. 5b, the part numbered 1-1 in the second time-frequency resource is CCE4, the occupied time-frequency resource is two CCEs, and the parts numbered 2-1, 3-1, 1-2, 2-2, and 3-2 in the second time-frequency resource are divided in the same manner as the part numbered 1-1. Specifically, the network device may send two different parts of the control information on two CCEs 1 of the first time-frequency resource, repeatedly send complete control information on the part numbered 1-1 of the second time-frequency resource, and repeatedly send complete control information on the part numbered 1-2 of the second time-frequency resource again, that is, the first time-frequency resource and the second time-frequency resource are divided in the same frequency domain, but the second time-frequency resource regards two symbols occupied in the time domain as a whole, so that the network device sends 3 parts of the same control information to the terminal device.

As another implementation manner, the number of symbols occupied by the first time-frequency resource and the second time-frequency resource in the time domain is not equal, and the division manner in the frequency domain is also different, as shown in fig. 5c, when the first time-frequency resource set occupies 1 symbol in the time domain, and the second time-frequency resource set occupies 2 symbols in the time domain, the first time-frequency resource occupies 1 symbol in the time domain, the second time-frequency resource occupies 2 symbols in the time domain, both parts numbered 1 in the first time-frequency resource are CCE1, the size of the occupied time-frequency resource is one CCE, both parts numbered 2 in the first time-frequency resource are CCE2, the size of the occupied time-frequency resource is one CCE, both parts numbered 3 in the first time-frequency resource are CCE3, and the size of the occupied time-frequency resource is one CCE; two symbols occupied by the second time-frequency resource in the time domain can also be regarded as a whole, but in the implementation manner provided by fig. 5c, the division manner of the second time-frequency resource in the frequency domain is also different from that of the first time-frequency resource, as shown in fig. 5c, both parts numbered 1-1 in the second time-frequency resource are CCE5, the size of the occupied time-frequency resource is one CCE, both parts numbered 1-2 are CC6, which is the same as the division manner of the parts numbered 1-1, both the parts numbered 2 and 3 in the second time-frequency resource are the same as the division manner of the parts numbered 1-1, the network device can respectively transmit two different parts of the control information on the two CCEs 1 of the first time-frequency resource, respectively repeatedly transmit two different parts of the control information on the two CCEs 5 of the second time-frequency resource, and respectively repeatedly transmit two different parts of the control information on the two CCEs 6 of the second time-frequency resource, that is, the second time-frequency resource regards two symbols occupied in the time domain as a whole, and the width of each time-frequency resource unit of the second time-frequency resource in the frequency domain is half of the width of each time-frequency resource unit of the first time-frequency resource in the frequency domain, so that the network device sends 3 pieces of the same control information to the terminal device.

In the embodiment of the present application, one complete piece of control information may also be carried on 4, 6, 8, 16, or other numbers of CCE types, and it should be understood that all the above examples are only for conveniently understanding the dividing manner of the first time-frequency resource and the second time-frequency resource in the present solution, one complete piece of control information needs to be carried on several CCEs, and each piece of control information is specifically transmitted on which CCE may be flexibly determined by combining with the actual situation, and no limitation is made here.

The network equipment can flexibly determine the mode of sending the control information according to the actual situation, and the realizability of the scheme is improved.

It should be understood that, in the embodiment of the present application, the execution order of step 204 and step 207 is not limited, and step 204 may be executed first, and then step 207 may be executed, or step 204 and step 207 may be executed simultaneously.

208. And under the condition that the second indication information indicates that the second time frequency resource set exists, and under the condition that the second indication information also indicates the position of the second time frequency resource set, the terminal equipment determines the position of the second time frequency resource set according to the second indication information.

In this embodiment of the application, when the second indication information further indicates a location of the second time-frequency resource set, after the terminal device receives the second indication information sent by the network device in step 203, the presence or absence of the second time-frequency resource used for the network device to repeatedly send the control information to the terminal device may be known, and the location of the second time-frequency resource set may also be determined.

Specifically, in an implementation manner, the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located in consecutive and different symbols in the same time slot in the time domain, and the terminal device determines that the second time-frequency resource set and the first time-frequency resource set are respectively located in consecutive and different symbols in the same time slot in the time domain according to the second indication information.

In another implementation manner, the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in the time domain, and the terminal device determines that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in the time domain according to the second indication information.

It should be appreciated that step 208 is an optional step, and if the second indication information indicates a location of the second set of time-frequency resources, step 208 exists; if the second indication information does not indicate the location of the second set of time-frequency resources, step 209 may be performed directly after step 207 or step 203.

209. And the terminal equipment repeatedly monitors the control information so as to receive the control information repeatedly sent by the network equipment on a second time-frequency resource in the second time-frequency resource set.

As an implementation manner, under the condition that the second indication information indicates that the second time-frequency resource set exists and the second indication information does not indicate the second time-frequency resource set, the terminal device may continuously monitor the control information, so as to receive the control information repeatedly sent by the network device on the second time-frequency resource in the second time-frequency resource set.

As another implementation manner, when the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located in different continuous symbols in the same time slot in the time domain, the terminal device may continuously monitor the control information in the time slot in which the first time-frequency resource set is located to receive the control information repeatedly sent by the network device, and under the condition that the terminal device knows that the second time-frequency resource set and the first time-frequency resource set are respectively located in different continuous symbols in the same time slot in the time domain according to the second indication information, the terminal device may receive at least two repeated control information by continuously monitoring the control information in one time slot, thereby reducing the workload of the terminal device.

As another implementation manner, under the condition that the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in the time domain, the terminal device may continuously monitor the control information, or after monitoring the control information on the first time-frequency resource of the first time-frequency resource set, stop monitoring until the next time slot starts to monitor the control information, until the control information repeatedly sent by the network device is received on the second time-frequency resource.

It should be understood that steps 207 to 209 are optional steps, and that, when the second indication information indicates that the second time frequency resource does not exist, steps 207 to 209 are not executed, and when the second indication information indicates that the second time frequency resource exists, steps 207 to 209 are executed.

In the embodiment of the application, the network device sends first indication information to the terminal device, so that the terminal device can determine a first time-frequency resource set according to the first indication information and obtain control information on a first time-frequency resource of the first time-frequency resource set, the network device also sends second indication information to the terminal device, the terminal device determines that a second time-frequency resource set exists or does not exist according to the second indication information, and under the condition that the second time-frequency resource set exists, the terminal device can receive control information repeatedly sent by the network device on the second time-frequency resource of the second time-frequency resource set, so that the terminal device can receive at least two pieces of same control information in one transmission cycle of the control information, and the accuracy of the terminal device in receiving the control information is improved; in addition, the specific implementation mode of repeatedly sending the control information is provided, and the realizability of the scheme is improved.

Secondly, the terminal equipment determines a second time frequency resource set according to a preset rule

Referring to fig. 6, which is a schematic view of another interaction flow between a network device and a terminal device according to an embodiment of the present application, a signal sending method according to an embodiment of the present application may include:

601. the network equipment sends the first indication information to the terminal equipment.

In the embodiment of the present application, step 601 is similar to step 201 in the embodiment shown in fig. 2, and is not described here again.

602. The network device sends control information to the terminal device on a first time-frequency resource in the first set of time-frequency resources.

603. And the terminal equipment determines the position of the first time-frequency resource set according to the first indication information.

604. The terminal device monitors the control information in the first set of time-frequency resources to receive the control information sent by the network device on the first time-frequency resources of the first set of time-frequency resources.

In the embodiment of the present application, steps 602 to 604 are similar to steps 203 to 206 in the embodiment shown in fig. 2, and are not described herein again.

605. And the terminal equipment determines the position of the second time-frequency resource set according to the position of the first time-frequency resource set and a preset rule.

In some embodiments of the present application, the predetermined rule may be that the second set of time-frequency resources and the first set of time-frequency resources are located on consecutive and different symbols in the same timeslot; or, referring to fig. 3, the second set of time-frequency resources is separated from the first set of time-frequency resources by X slots; or the distance between the second time-frequency resource set and the first time-frequency resource set is Y milliseconds, so that after the terminal device determines the position of the first time-frequency resource set according to the first indication information, the position of the second time-frequency resource can be determined by combining a preset rule, wherein X and Y are both positive numbers, and Y is less than 20 under the condition that the control information is DCI, because in the 5G-NR system, the transmission period of the physical downlink control channel of type 0 indicated by PBCH is 20 milliseconds, that is, the transmission period of DCI contained in the physical downlink control channel of type 0 is also 20 milliseconds, when the network device repeatedly transmits the control information to the terminal device through the second time-frequency resource in the second time-frequency resource set, the terminal device can receive at least two pieces of same control information in total, thereby improving the success rate of detecting the control information by the terminal device; in addition, various possible implementation modes of the preset rule are specifically provided, and the realizability and operability of the scheme are improved.

Optionally, the preset rule may further include the number of symbols occupied by the second time-frequency resource set in the time domain, and in a case that the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain is not more than 3, specifically, the preset rule may further be that the second time-frequency resource set occupies 1 symbol in the time domain, or the preset rule may further be that the second time-frequency resource set occupies 2 symbols in the time domain, and the like, and the specific details are not limited herein.

Optionally, the preset rule may further include that the frequency domain resources occupied by the first time frequency resources are the same as the frequency domain resources occupied by the second time frequency resources.

It should be understood that the preset rule stored in the terminal device may be configured on the terminal device when the terminal device leaves the factory, may also be sent to the terminal device by the network device in a broadcast manner in advance, may also be in other manners, and the like, and is not limited herein.

606. The network device determines whether a preset condition for repeatedly sending control information is met, and if the determination result is yes, the process proceeds to step 607; if the determination result is negative, go to step 608.

In this embodiment, the network device may determine, in combination with several related factors, whether to repeatedly send the control information to the terminal device on the second time-frequency resource of the second time-frequency resource set, where the related factors include, but are not limited to, a distance between the network device and the terminal device or communication quality between the network device and the terminal device.

Specifically, as an implementation manner, the network device may acquire the position of the terminal device during the process of accessing the terminal device to the network and during the subsequent information interaction with the terminal device, so that when the distance between the terminal device and the network device is greater than or equal to the first preset threshold, the network device repeatedly sends control information to the terminal device on the second time-frequency resource; and when the distance between the terminal equipment and the network equipment is smaller than a first preset threshold value, the network equipment does not repeatedly send control information to the terminal equipment on the second time-frequency resource.

As another implementation manner, in the process of information interaction between the network device and the terminal device, the communication quality between the network device and the terminal device can be obtained, so that when the communication quality between the network device and the terminal device is lower than or equal to a second preset threshold, the network device repeatedly sends control information to the terminal device on a second time-frequency resource; and when the communication quality between the network equipment and the terminal equipment is higher than a second preset threshold value, the network equipment does not repeatedly send the control information to the terminal equipment on the second time-frequency resource. It should be understood that the above examples are only to prove the feasibility of the present solution, and the network device may further determine, in combination with other factors, whether to repeatedly send the control information to the terminal device at the second time-frequency resource location, which is not described herein any more.

607. And the network equipment repeatedly sends the control information to the terminal equipment on the second time-frequency resource of the second time-frequency resource set.

608. And the terminal equipment repeatedly monitors the control information on the second time-frequency resource set.

In this embodiment, no matter whether the network device sends the control information to the terminal device on the second time-frequency resource of the second time-frequency resource, the terminal device monitors the control information on the plurality of time-frequency resources included in the second time-frequency resource set. Specifically, under the condition that the network device repeatedly sends the control information on the second time-frequency resource of the second time-frequency resource set, the terminal device may repeatedly monitor the control information on the second time-frequency resource set after determining the position of the second time-frequency resource set, so as to receive the control information repeatedly sent by the network device on the second time-frequency resource of the second time-frequency resource set; and under the condition that the network equipment does not repeatedly send the control information on the second time-frequency resource of the second time-frequency resource set, the terminal equipment fails to receive the control information.

Optionally, under the condition that the preset rule indicates that the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same, after determining the position of the first time-frequency resource in the frequency domain and the position of the second time-frequency resource set in the time domain, the terminal device may determine the position of the second time-frequency resource, so that the terminal device may repeatedly monitor the control information on the second time-frequency resource of the second time-frequency resource set without monitoring the control information on all the time-frequency resources included in the second time-frequency resource set, thereby reducing the load of the terminal device.

In the embodiment of the application, the network device sends the first indication information to the terminal device, so that the terminal device can determine the first time-frequency resource set according to the first indication information and obtain the control information on the first time-frequency resource of the first time-frequency resource set, and the network device can also repeatedly send the control information to the terminal device on the second time-frequency resource in the second time-frequency resource set under the condition of meeting the preset repeated sending of the control information, so that the terminal device can receive the control information repeatedly sent by the network device on the second time-frequency resource of the second time-frequency resource set, and the terminal device can receive at least two same control information in one transmission period of the control information, thereby improving the accuracy of the terminal device in receiving the control information; in addition, the network device can repeatedly send the control information to the terminal device only when the preset condition for repeatedly sending the control information is determined to be met according to the relevant factors, so that the waste of communication resources is avoided.

Based on the embodiments described in fig. 2 to fig. 6, referring to fig. 7, a schematic diagram of still another interaction flow between a network device and a terminal device provided in the embodiment of the present application is shown, where the signal sending method provided in the embodiment of the present application may include:

701. the network device determines M first signals for carrying first information.

In this embodiment of the application, the first information may be any data sent by the network device to the terminal device, specifically, the first information is original data that has not been encoded, and in general, the network device may encode the first information in a redundant encoding manner, but may also adopt other types of encoding manners, and the specifically adopted encoding manner should be determined flexibly in combination with actual situations.

In the embodiment of the present application, the first signal may also be referred to as a first data signal, and refers to a signal for carrying data. M is an integer greater than 1, the size of the time-frequency resource occupied by each first signal in the M first signals may be the same, the frequency-domain resource occupied by each first signal in the M first signals may also be the same, but the time-domain resources occupied by any two first signals in the M first signals are not overlapped, specifically, the M first signals may occupy continuous M time-domain resources, and may also occupy discontinuous M time-domain resources, wherein the size of each time-domain resource in the M time-domain resources includes but is not limited to one symbol, multiple symbols, one time slot, multiple time slots, one subframe or multiple subframes, etc.; the size of the frequency domain resource occupied by each first signal in the M first signals includes, but is not limited to, one subcarrier or a plurality of subcarriers, and the size of the time domain resource and the size of the frequency domain resource occupied by each first signal can be flexibly set according to the actual situation, and is not limited herein.

702. And the network equipment sends third indication information to the terminal equipment, wherein the third indication information indicates the time-frequency resource position of the reference signal corresponding to the first signal.

In this embodiment of the application, each first signal is associated with a reference signal, where the reference signal is a signal known by both the network device and the terminal device and used for assisting the terminal device in detecting the first signal, and after receiving the first signal, the terminal device needs to acquire the reference signal corresponding to the first signal, so as to detect the first signal. The third indication information is used to indicate a location of a time-frequency resource of a reference signal corresponding to the first signal, and specifically, the third indication information may indicate a port number of the reference signal corresponding to the first signal, and may also indicate a number of the time-frequency resource of the reference signal corresponding to the first signal. The reference signal in the embodiment of the present application may be embodied as a demodulation reference signal (DMRS), or may be embodied as another type of reference signal, and is not limited herein.

Specifically, the third indication information may indicate different states through different values, and when the third indication information indicates the port numbers of the reference signals, as one state, the third indication information indicates that the port numbers of the M reference signals corresponding to the M first signals are all the same.

As another state, if at least two ports for transmitting reference signals exist on the network device, the network device may perform M times of transmission operations of the reference signals in a port polling manner, and the third indication information indicates that the network device performs M times of transmission operations of M reference signals corresponding to M first signals in a port polling manner, that is, port numbers used in any two adjacent reference signal transmission operations in the M times of transmission operations of the reference signals are different.

Specifically, in the case that the number of ports for transmitting the reference signals is two, the third indication information may indicate that the number of transmission ports of the 2i-1 th reference signal among the M reference signals is the same, the number of transmission ports of the 2i-1 th reference signal is the same, and the number of transmission ports of the 2i-1 th reference signal is different from the number of transmission ports of the 2 i-2 th reference signal, where i is a positive integer greater than or equal to 1 and less than or equal to M/2. For example, the reference signal is a DMRS, M is 8, a port 0 and a port 2 exist on the network device for transmitting the DMRS, and ports adopted by the network device to perform DMRS transmission operations for 8 times are respectively port 0, port 2, port 0, and port 2.

In the case that the number of the ports for transmitting the reference signals is four, the third indication information indicates that the transmission ports of the 4l-3 th reference signals among the M reference signals are the same in number, the transmission ports of the 4l-2 th reference signals are the same in number, the transmission ports of the 4l-1 th reference signals are the same in number, the transmission ports of the 4l-3 th reference signals are the same in number, and the transmission ports of the 4l-3 th reference signals, the 4l-2 th reference signals, the 4l-1 th reference signals and the 4l reference signals are different from each other in number, wherein l is a positive integer greater than or equal to 1 and less than or equal to M/4. For example, the reference signal is a DMRS, the value of M is 8, a port 0, a port 2, a port 4, and a port 6 exist on the network device for transmitting the DMRS, and ports adopted by the network device to perform DMRS transmission operations for 8 times are respectively the port 0, the port 2, the port 4, the port 6, the port 0, the port 2, the port 4, and the port 6.

In a case where the third indication information indicates the time-frequency resource numbers of the reference signals, as a state, the third indication information indicates that the time-frequency resources used for transmitting the M reference signals corresponding to the M first signals are all the same in number.

As another state, at least two groups of time-frequency resources for transmitting the reference signal exist on the network device, the network device may perform M times of transmission operations of the reference signal in a time-frequency resource polling manner, and the third indication information indicates that the network device performs M times of transmission operations of M reference signals corresponding to the M first signals in the time-frequency resource polling manner, that is, the numbers of the time-frequency resources used in any two adjacent reference signal transmission operations in the M times of transmission operations of the reference signal are different.

Specifically, in the case that the reference signals are transmitted through two groups of time frequency resources, the third indication information may indicate that, of the M reference signals, the time frequency resources used for transmitting the 2M-1 th reference signal have the same number, and the number of the time frequency resources used for transmitting the 2M-1 th reference signal is different from the number of the time frequency resources used for transmitting the 2M-1 th reference signal, where M is a positive integer greater than or equal to 1 and less than or equal to M/2. As an example, for example, the reference signal is a DMRS, where M takes a value of 8, two sets of time-frequency resources, respectively numbered as time-frequency resource 0 and time-frequency resource 2, exist on the network device to transmit the DMRS, and the time-frequency resources used by the network device to perform DMRS transmission operations for 8 times are time-frequency resource 0, time-frequency resource 2, time-frequency resource 0, and time-frequency resource 2, respectively.

Under the condition that the reference signals are transmitted through four groups of time frequency resources, the third indication information may indicate that the numbers of the time frequency resources used for transmitting the 4n-3 th reference signal in the M reference signals are the same, the numbers of the time frequency resources used for transmitting the 4n-2 th reference signal are the same, the numbers of the time frequency resources used for transmitting the 4n-1 th reference signal are the same, the numbers of the time frequency resources used for transmitting the 4n-3 th reference signal are the same, and the numbers of the time frequency resources used for transmitting the 4n-3 th reference signal, the 4n-2 th reference signal, the 4n-1 th reference signal and the 4 n-4 th reference signal are different from each other, wherein n is a positive integer greater than or equal to 1 and less than or equal to M/4. As an example, for example, the reference signal is a DMRS, M takes a value of 8, four groups of time-frequency resources, which are respectively numbered as time-frequency resource 0, time-frequency resource 2, time-frequency resource 4, and time-frequency resource 6, exist on the network device to transmit the DMRS, and the time-frequency resources used by the network device to perform DMRS transmission operations for 8 times are respectively time-frequency resource 0, time-frequency resource 2, time-frequency resource 4, time-frequency resource 6, time-frequency resource 0, time-frequency resource 2, time-frequency resource 4, and time-frequency resource 6.

It should be understood that the function of the third indication information is to indicate the positions of the time-frequency resources of the M reference signals corresponding to the M first signals, and the above examples are only for convenience of understanding the present solution, and the specific port number, the number of the time-frequency resources, and the specific content of the third indication information are not limited herein.

Optionally, the third indication information may be included in the control information in the embodiments described in fig. 2 to fig. 6, and sent to the terminal device by the network device. Specifically, as an implementation manner, the network device may send the third indication information to the terminal device through steps 201 to 209 in the embodiment shown in fig. 2; as another implementation manner, the network device may also send the third indication information to the terminal device through steps 601 to 608 in the embodiment shown in fig. 6; as another implementation manner, the network device may also send the third indication information to the terminal device through step 201, step 204 to step 206 in the embodiment shown in fig. 2, and since the foregoing steps have been described in detail in the embodiment shown in fig. 2 and the embodiment shown in fig. 6, details are not described here any more.

703. The network equipment determines M pieces of second information, wherein any one of the M pieces of second information is the information obtained by encoding the first information.

In this embodiment, the second information is data obtained by encoding the first information, that is, the second information includes the first information. When the adopted coding method is redundant coding, the second information is information obtained by performing redundant coding on the first information. Specifically, the network device may perform M times of redundant coding on the first information according to N Redundant Versions (RV) to obtain M second information, where the same redundant version may be used between two adjacent second information, or different redundant versions may be used, and when the redundant versions are different, the second information obtained after performing the redundant coding on the first information may be different, where N is an integer greater than 1 and less than M, and M is an integer multiple of N.

Optionally, the signal sending method provided in the embodiment of the present application may further include: and the network equipment sends fourth indication information to the terminal equipment, wherein the fourth indication information is used for indicating the redundancy version corresponding to the second information carried in the first signal.

Specifically, the fourth indication information may also indicate a repetition mode of the N redundancy versions in the M second information sending operations through different values. As a redundant version repeating mode, the network device at least has the same redundant version when performing two adjacent second information sending operations, specifically, the fourth indication information indicates that the redundant versions of the 1 st to M/N second information in the M second information are the same, the redundant versions of the M/N +1 th to 2M/N second information are the same, the redundant versions of the 2M/N +1 th to 3M/N second information are the same, the redundant versions of the 3M/N +1 th to M second information are the same, and the redundant versions of the 1 st to M/N second information, the M/N +1 th to 2M/N second information, the 2M/N +1 th to 3M/N second information, and the redundant versions of the 3M/N +1 th to M second information are different from each other. As an example, for example, the value of M is 12, the value of N is 4, and the values of the N redundancy versions are sequentially 0, 2, 1, and 3, respectively, so that the values of the redundancy versions may be sequentially 0, 2, 1, 3, and 3.

As another redundancy version repetition mode, the redundancy versions of the network device when performing any two adjacent second information sending operations are different, as an example, the redundancy versions may have two values, and the fourth indication information indicates that the redundancy versions of the 2p-1 th second information in the M second information are the same, the redundancy versions of the 2p second information are the same, and the redundancy versions of the 2p-1 th second information are different from the redundancy versions of the 2p second information, where p is a positive integer greater than or equal to 1 and less than or equal to M/2, as an example, for example, the value of M is 12, the value of N is 2, and the value sequence of the 2 redundancy versions is 0 and 2, respectively, and the value of the redundancy versions may be 0, 2, 0, and 2 in sequence.

As another example, four values may exist in the redundancy version, the fourth indication information indicates that redundancy versions of 4q-3 th second information in the M second information are the same, redundancy versions of 4q-2 th second information are the same, redundancy versions of 4q-1 th second information are the same, redundancy versions of 4q-3 th second information, and redundancy versions of 4q-2 th second information, 4q-1 th second information, and 4q second information are different from each other, where q is a positive integer greater than or equal to 1 and less than or equal to M/4, for example, a value of M is 12, a value of N is 4, and values of 4 redundancy versions are 0, 2, 1, and 3 respectively, and values of the redundancy versions may be 0, 2, and, 1. 3, 0, 2, 1, 3, 0, 2, 1 and 3.

It should be understood that, the above examples of M and N and the example of the value sequence of the N values of the redundancy version are only for convenience of understanding the present solution, and the specific values of M and N and the value sequence of the N values of the redundancy version should be flexibly determined by combining with the actual environment requirements, and are not limited herein.

Or, as an implementation manner, when the network device performs two adjacent reference signal sending operations, at least the same redundancy version exists, for example, the value of M is 12, the value of N is 4, and the value sequence of the 4 redundancy versions is 0, 2, 1, and 3, so that the value of the redundancy version may be 0, 2, 1, 3, and 3 in sequence.

Optionally, the fourth indication information may be included in the control information in the embodiments described in fig. 2 to fig. 6, and sent to the terminal device by the network device. Specifically, as an implementation manner, the network device may send the third indication information to the terminal device through steps 201 to 209 in the embodiment shown in fig. 2; as another implementation manner, the network device may also send the third indication information to the terminal device through steps 601 to 608 in the embodiment shown in fig. 6; as another implementation manner, the network device may also send the third indication information to the terminal device through step 201, step 204 to step 206 in the embodiment shown in fig. 2, and since the foregoing steps have been described in detail in the embodiment shown in fig. 2 and the embodiment shown in fig. 6, details are not described here any more.

It should be understood that, in the embodiment of the present application, the execution order of step 702 and step 703 is not limited, and step 702 may be executed first, and then step 703 may be executed; step 703 may be executed first, and then step 702 is executed; step 702 and step 703 may also be performed simultaneously.

704. And the network equipment respectively bears the M pieces of second information on the M pieces of first signals and sends the M pieces of second information to the terminal equipment.

In this embodiment of the present application, after determining M first signals used for performing a current data transmission operation, the network device may determine M second information to be sent according to the N redundancy versions and the first information, and respectively bear the M second information on the M first signals and send the M second information to the terminal device. Specifically, the network device may sequence the M first signals according to positions of the M first signals in the time domain, so as to successively utilize each first signal of the M first signals to send the second information to the terminal device, and may also respectively bear the M second information on the M first signals in other manners to send the second information to the terminal device, which is not described here any more.

705. And the terminal equipment receives the third indication information and determines the time-frequency resource position of the reference signal corresponding to each first signal in the M first signals according to the third indication information.

In this embodiment of the application, the terminal device may determine, according to the third indication information, a time-frequency resource location of the reference signal corresponding to each first signal in the M first signals, and then, after receiving the first signal, may determine, in combination with the third indication information, a time-frequency resource location where the reference signal is sent, so that the terminal device may monitor the reference signal at the time-frequency resource location determined according to the third indication information, thereby improving a success rate of receiving the reference signal, and further, may improve a channel estimation accuracy of the terminal device, and improve reliability of transmission.

It should be understood that step 702 is an optional step, and if step 702 does not exist, step 705 does not exist, step 703 may be executed after step 701 is executed, and step 706 may be executed after step 704 is executed.

706. The terminal equipment receives at least one first signal in the M first signals to acquire first information.

In this embodiment, the terminal device may receive at least one first signal of the M first signals, and decode the second information after acquiring the second information carried on the one first signal, so as to acquire the first information. Optionally, the terminal device receives fourth indication information from the network device, and determines, according to the fourth indication information, a redundancy version corresponding to each of the M pieces of second information.

In this embodiment of the application, the terminal device may determine, according to the fourth indication information, a redundancy version corresponding to each of the M pieces of second information received, and after receiving the second information each time, the terminal device may decode the second information according to the redundancy version corresponding to the received second information to obtain the first information. Furthermore, the terminal device may perform joint decoding according to the M pieces of second information to improve the probability of successfully acquiring the first information and improve the reliability of transmission.

It should be understood that, the embodiment of the present application does not limit the execution sequence of step 705 and step 706, and step 705 may be executed first, and then step 706 may be executed; step 706 may be performed first, and then step 705 may be performed.

Based on the embodiments described in fig. 2 to fig. 7, referring to fig. 8, a schematic diagram of still another interaction flow between a network device and a terminal device provided in the embodiment of the present application is shown, where the signal sending method provided in the embodiment of the present application may also include:

801. and the terminal equipment determines M pieces of fourth information, wherein any one of the M pieces of fourth information is the information obtained by coding the third information.

In this embodiment of the application, the third information may be any data sent by the terminal device to the network device, specifically, the third information is original data that is not encoded, and in general, the terminal device may encode the third information in a redundant encoding manner, but may also adopt other types of encoding manners, which is not limited herein.

More specifically, in the case that the adopted coding method is redundancy coding, the terminal device may perform redundancy coding on the third information M times according to N Redundancy Versions (RVs) to obtain M fourth information, where two adjacent fourth information may adopt the same redundancy version or different redundancy versions, and when the redundancy versions are different, the second information obtained after performing redundancy coding on the first information may be different, where N is an integer greater than 1 and smaller than M, and M is an integer multiple of N.

802. And the terminal equipment respectively bears the M fourth information on the M second signals and sends the M second information to the network equipment.

In this embodiment, step 802 is similar to step 704 in the embodiment described in fig. 7, except that the first signal in step 704 carries data that is sent by the network device to the terminal device, and the second signal in step 802 carries data that is sent by the terminal device to the network device, which is not described herein again.

Optionally, the signal sending method provided in the embodiment of the present application may further include: and the terminal equipment sends sixth indication information to the network equipment, wherein the sixth indication information is used for indicating the redundancy version corresponding to the fourth information carried in the second signal.

In this embodiment of the application, a concrete expression of the fifth indication information may refer to the description of the fourth indication information in step 703 in the embodiment described in fig. 7, and is not described herein again.

803. The network device receives at least one of the M second signals.

In the embodiment of the present application, step 803 is similar to step 706 in the embodiment described in fig. 7, and is not described here again.

804. And the network equipment sends fifth indication information to the terminal equipment, wherein the fifth indication information is used for indicating the time-frequency resource position of the reference signal corresponding to each second signal in the M second signals.

805. And the terminal equipment receives the fifth indication information and determines the time-frequency resource position of the reference signal corresponding to each second signal in the M second signals according to the fifth indication information.

In this embodiment, steps 804 and 805 are similar to steps 702 and 705 in the embodiment described in fig. 7, respectively, and the difference is only that the third indication information in step 702 indicates the time-frequency resource location of the reference signal corresponding to each first signal, and the fifth indication information in step 801 indicates the time-frequency resource location of the reference signal corresponding to each second signal, which is not described herein again.

It should be understood that the present embodiment does not limit the execution sequence of steps 801 to 803 and steps 804 to 805, and steps 801 to 803 may be executed first, and then steps 804 to 805 may be executed; alternatively, steps 804 to 805 may be performed first, and then steps 801 to 803 may be performed.

In the embodiment of the application, a specific implementation scheme is provided under the condition that the data to be sent is sent to the network equipment by the terminal equipment, and the application scene of the scheme is widened.

In order to better implement the above-mentioned aspects of the embodiments of the present application, the following also provides related apparatuses for implementing the above-mentioned aspects.

Specifically referring to fig. 9, fig. 9 is a schematic structural diagram of a network device according to an embodiment of the present application, where the network device 900 includes a sending unit 901:

a sending unit 901, configured to send first indication information to a terminal device, where the first indication information is used to indicate a first set of time-frequency resources;

a sending unit 901, further configured to send second indication information to the terminal device, where the second indication information is used to indicate that the second time-frequency resource set exists or does not exist;

a sending unit 901, configured to send control information to the terminal device on a first time-frequency resource in the first set of time-frequency resources;

the sending unit 901 is further configured to send control information to the terminal device on a second time-frequency resource in a second time-frequency resource set when the second indication information indicates that the second time-frequency resource set exists, where multiple time-frequency resources included in the second time-frequency resource set include the second time-frequency resource, and the first time-frequency resource set and the second time-frequency resource set may belong to the same transmission period of the control information in a time domain.

In this embodiment, the sending unit 901 sends the first indication information to the terminal device, so that the terminal device may determine the first time-frequency resource set according to the first indication information and obtain the control information on the first time-frequency resource of the first time-frequency resource set, the sending unit 901 further sends the second indication information to the terminal device, the terminal device determines, according to the second indication information, that the second time-frequency resource set does not exist, and in the presence of the second time-frequency resource set, the terminal device may receive the control information repeatedly sent by the network device on the second time-frequency resource of the second time-frequency resource set, and then the terminal device may receive at least two identical control information in one transmission cycle of the control information, thereby improving the accuracy of the terminal device in receiving the control information; in addition, the specific implementation mode of repeatedly sending the control information is provided, and the realizability of the scheme is improved.

In one possible design, network device 900 may further include a determining unit 902, and determining unit 902 is configured to:

and determining an indication type of second indication information sent to the terminal device according to the relevant factor, wherein the relevant factor may include a distance between the network device and the terminal device or communication quality between the network device and the terminal device, and the indication type of the second indication information includes existence of the second time-frequency resource set and absence of the second time-frequency resource.

In one possible design, the first set of time-frequency resources and the second set of time-frequency resources are respectively located on consecutive and different symbols in the same timeslot in the time domain.

In one possible design, the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain is not more than three.

In one possible design, the first set of time-frequency resources may occupy one symbol in the time domain and the second set of time-frequency resources may occupy one or two symbols in the time domain.

In one possible design, in a case that the second indication information indicates that the second time-frequency resource set exists, the second indication information further indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in a time domain; alternatively, the first and second electrodes may be,

and under the condition that the second indication information indicates that the second time-frequency resource set exists, the second indication information is further used for indicating that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in the time domain.

In one possible design, in a case that the second indication information indicates that the second time-frequency resource set exists, the second indication information is further used for indicating the number of symbols occupied by the second time-frequency resource set in a time period.

In one possible design, when the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located on continuous and different symbols in the same time slot in the time domain, the second indication information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain; or, under the condition that the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in the time domain, the second indication information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain.

In one possible design, the first time-frequency resource and the second time-frequency resource occupy the same frequency-domain resource.

In one possible design, the first time-frequency resource and the second time-frequency resource occupy the same number of symbols in the time domain.

Specifically, referring to fig. 10, fig. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present application, where the terminal device 1000 includes a receiving unit 1001.

A receiving unit 1001, configured to receive first indication information sent by a network device, where the first indication information is used to indicate a first set of time and frequency resources;

the receiving unit 1001 is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate that the second time-frequency resource set exists or does not exist;

a receiving unit 1001, configured to receive control information sent by a network device on a first time-frequency resource of a first set of time-frequency resources;

the receiving unit 1001 is further configured to receive, on a condition that the second indication information indicates that a second time-frequency resource set exists, control information sent by the network device on a second time-frequency resource of the second time-frequency resource set, where the first time-frequency resource set and the second time-frequency resource set may belong to a same transmission period of the control information in a time domain.

In this embodiment, the receiving unit 1001 may receive first indication information sent by the network device, so as to receive control information on a first time-frequency resource of a first time-frequency resource set according to an indication of the first indication information, the receiving unit 1001 may also receive second indication information sent by the network device, and may repeatedly receive the control information in a second time-frequency resource of a second time-frequency resource set when the second indication information indicates that the second time-frequency resource set exists, so that the terminal device may receive at least two identical control information in one transmission cycle of the control information, thereby improving a correct rate of receiving the control information by the terminal device; in addition, the specific implementation mode of repeatedly sending the control information is provided, and the realizability of the scheme is improved.

In one possible design, in a case that the second indication information indicates that the second time-frequency resource set exists, the second indication information further indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in a time domain; or, in the case that the second indication information indicates that the second time-frequency resource set exists, the second indication information is further used for indicating that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in the time domain.

In one possible design, when the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located on continuous and different symbols in the same time slot in the time domain, the second indication information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain; alternatively, the first and second electrodes may be,

and under the condition that the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively positioned in different time slots in the time domain, the second indication information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain.

Referring to fig. 11 in particular, fig. 11 is a schematic structural diagram of a network device according to an embodiment of the present application, where the network device 1100 includes a sending unit 1101.

A sending unit 1101, configured to send, to a terminal device, a message including first indication information, where the first indication information is used to indicate a first set of time-frequency resources;

a transmitting unit 1101, configured to transmit control information to the terminal device on a first time-frequency resource in the first set of time-frequency resources;

the sending unit 1101 is further configured to, when determining that a preset condition for repeatedly sending control information is met according to the relevant factor, repeatedly send control information to the terminal device on a second time-frequency resource in a second time-frequency resource set;

the plurality of time-frequency resources contained in the second time-frequency resource set comprise a second time-frequency resource, the first time-frequency resource set and the second time-frequency resource set can belong to the same transmission period of the control information in the time domain, and the related factors comprise the distance between the network device and the terminal device or the communication quality between the network device and the terminal device.

In this embodiment, the sending unit 1101 sends the first indication information to the terminal device, so that the terminal device may determine the first time-frequency resource set according to the first indication information, and obtain the control information on the first time-frequency resource of the first time-frequency resource set, and the sending unit 1101 may further repeatedly send the control information to the terminal device on the second time-frequency resource in the second time-frequency resource set under the condition that the preset repeated sending of the control information is satisfied, so that the terminal device may receive the control information repeatedly sent by the network device on the second time-frequency resource of the second time-frequency resource set, and the terminal device may receive at least two identical control information in one transmission cycle of the control information, thereby improving the accuracy of the terminal device in receiving the control information; in addition, the network device can repeatedly send the control information to the terminal device only when the preset condition for repeatedly sending the control information is determined to be met according to the relevant factors, so that the waste of communication resources is avoided.

In one possible design, the preset condition for repeatedly sending the control information includes that the distance between the network device and the terminal device is greater than or equal to a first preset threshold value and/or the communication quality between the network device and the terminal device is lower than or equal to a second threshold value.

Specifically referring to fig. 12, fig. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application, where the terminal device 1200 includes a receiving unit 1201 and a determining unit 1202.

A receiving unit 1201, configured to receive first indication information sent by a network device, where the first indication information is used to indicate a first set of time and frequency resources;

a receiving unit 1201, configured to receive control information sent by a network device on a first time-frequency resource of a first set of time-frequency resources;

a determining unit 1202, configured to determine a position of a second time-frequency resource set according to the first time-frequency resource set and a preset rule;

the receiving unit 1201 is further configured to receive, on the condition that the network device repeatedly sends the control information on a second time-frequency resource of the second time-frequency resource set, the control information repeatedly sent by the network device on the second time-frequency resource of the second time-frequency resource set;

the multiple time-frequency resources contained in the second time-frequency resource set comprise a second time-frequency resource, and the first time-frequency resource set and the second time-frequency resource set can belong to the same transmission period of the control information in the time domain.

In this embodiment, the receiving unit 1201 may receive first indication information sent by the network device, so that the control information is received on a first time-frequency resource of a first time-frequency resource set according to an indication of the first indication information, the determining unit 1202 may further determine a position of a second time-frequency resource set according to a preset rule, and repeatedly monitor the control information on the second time-frequency resource set, and under the condition that the network device repeatedly sends the control information on a second time-frequency resource of the second time-frequency resource set, the terminal device may receive the control information repeatedly sent by the network device on the second time-frequency resource, and then the terminal device may receive at least two identical control information in one transmission cycle of the control information, thereby improving a correct rate of receiving the control information by the terminal device.

In one possible design, the predetermined rule may include that the second set of time frequency resources and the first set of time frequency resources are located on consecutive and different symbols in the same timeslot, or that the second set of time frequency resources and the first set of time frequency resources are separated by X timeslots, or that the second set of time frequency resources and the first set of time frequency resources are separated by Y milliseconds.

In a possible design, the preset rule may further include the number of symbols occupied by the second time-frequency resource set in the time domain.

In a possible design, the preset rule may further include that the frequency domain resources occupied by the first time frequency resources are the same as the frequency domain resources occupied by the second time frequency resources.

It should be noted that, because the contents of information interaction, execution process, and the like between the modules/units of the apparatus are based on the same concept as the method embodiment of the present application, the technical effect brought by the contents is the same as the method embodiment of the present application, and specific contents may refer to the description in the foregoing method embodiment of the present application, and are not described herein again.

Referring to fig. 13, a schematic structural diagram of a communication device provided in an embodiment of the present application is described next, where the communication device may be a network device or a terminal device or a circuit. The communication device may be configured to perform the actions performed by the network device or the terminal device in the above method embodiments.

When the communication device is a network device or a terminal device, fig. 13 shows a simplified structural diagram of the terminal device. For easy understanding and illustration, in fig. 13, the terminal device is exemplified by a mobile phone. As shown in fig. 13, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal equipment, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 13. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.

In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal device, and the processor having the processing function may be regarded as a processing unit of the terminal device. As shown in fig. 13, the terminal device includes a transceiving unit 1310, a processing unit 1320, and an input-output apparatus 1330. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Alternatively, a device for implementing the receiving function in the transceiving unit 1310 may be regarded as a receiving unit, and a device for implementing the transmitting function in the transceiving unit 1310 may be regarded as a transmitting unit, that is, the transceiving unit 1310 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

It should be understood that the transceiving unit 1310 is configured to perform the transmitting operation and the receiving operation on the terminal device side in the above method embodiments, and the processing unit 1320 is configured to perform other operations besides the transceiving operation on the terminal device in the above method embodiments.

For example, in one implementation, the transceiving unit 1310 is configured to perform the transmitting operation on the network device side in step 201, step 203, step 204, and step 205 in fig. 2, and/or the transceiving unit 1310 is further configured to perform other transceiving steps on the network device side in this embodiment of the present application. The processing unit 1320 is configured to execute step 202 in fig. 2, and/or the processing unit 1320 is further configured to execute other processing steps on the network device side in the embodiment of the present application.

For another example, in another implementation manner, the transceiver 1310 is configured to perform receiving operations on the terminal device side in step 201, step 203, step 206, and step 209 in fig. 2, and/or the transceiver 1320 is further configured to perform other transceiving steps on the terminal device side in this embodiment of the present application. The processing unit 1320 is configured to perform step 205, step 208 in fig. 2, and/or the processing unit 1320 is further configured to perform other processing steps on the terminal device side in the embodiment of the present application.

For another example, in another implementation manner, the transceiving unit 1310 is configured to perform the transmitting operation on the network device side in step 601, step 602, and step 607 in fig. 6, and/or the transceiving unit 1310 is further configured to perform other transceiving steps on the network device side in this embodiment of the present application. Processing unit 1320 is configured to perform step 606 in fig. 6, and/or processing unit 1320 is further configured to perform other processing steps on the network device side in the embodiment of the present application.

For another example, in another implementation manner, the transceiver 1310 is configured to perform the receiving operation at the terminal device side in step 601, step 604, and step 608 in fig. 6, and/or the transceiver 1310 is further configured to perform other transceiving steps at the terminal device side in the embodiment of the present application. The processing unit 1320 is configured to perform step 603 and step 605 in fig. 6, and/or the processing unit 1320 is further configured to perform other processing steps on the terminal device side in the embodiment of the present application.

For another example, in another implementation manner, the transceiver 1310 is configured to perform the sending operation on the network device side in step 702, step 703, and step 704 in fig. 7, and/or the transceiver 1310 is further configured to perform other transceiving steps on the network device side in this embodiment of the present application. Processing unit 1320 is configured to perform step 701 in fig. 7, and/or processing unit 1320 is further configured to perform other processing steps on the network device side in the embodiment of the present application.

For another example, in another implementation manner, the transceiver 1310 is configured to perform the receiving operation at the terminal device side in step 702, step 703, and step 704 in fig. 7, and/or the transceiver 1310 is further configured to perform other transceiving steps at the terminal device side in the embodiment of the present application. The processing unit 1320 is configured to perform step 705, step 706, and step 707 in fig. 7, and/or the processing unit 1320 is further configured to perform other processing steps on the terminal device side in the embodiment of the present application.

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

When the communication device in this embodiment is a terminal device, reference may be made to the device shown in fig. 14. As an example, the device may perform a function similar to the processor of FIG. 13. In fig. 14, the apparatus includes a processor 1410, a transmit data processor 1420, and a receive data processor 1430. The processing unit 1320 in the above embodiments may be the processor 1410 in fig. 14, and performs corresponding functions. The transceiving unit 1310 in the above-described embodiment may be the transmission data processor 1420, and/or the reception data processor 1430 of fig. 14. Although fig. 14 shows a channel encoder and a channel decoder, it is understood that these blocks are not limitative and only illustrative to the present embodiment.

Fig. 15 shows another form of the present embodiment. The processing device 1500 includes modules such as a modulation subsystem, a central processing subsystem, and peripheral subsystems. The communication device in this embodiment may serve as a modulation subsystem therein. In particular, the modulation subsystem may include a processor 1501, an interface 1502. The processor 1501 performs the functions of the processing unit 1320, and the interface 1502 performs the functions of the transceiver 1310. As another variation, the modulation subsystem includes a memory 1503, a processor 1501 and a program stored in the memory 1503 and executable on the processor, and the processor 1501 implements the method on the terminal device side in the above method embodiments when executing the program. It should be noted that the memory 1503 may be non-volatile or volatile, and may be located within the modulation subsystem or within the processing device 1500, as long as the memory 1503 can be connected to the processor 1501.

Also provided in an embodiment of the present application is a computer-readable storage medium, which stores instructions processed by the mental stress assessment model, and when the instructions are executed on a computer, the computer is caused to execute the steps executed by the network device in the method described in the foregoing embodiments shown in fig. 2 to 7.

Also provided in an embodiment of the present application is a computer-readable storage medium, which stores therein instructions for processing by a psychological stress assessment model, and when the instructions are executed on a computer, the computer is caused to perform the steps performed by the terminal device in the method described in the foregoing embodiments shown in fig. 2 to 7.

Also provided in the embodiments of the present application is a computer program product containing signal processing instructions, which when run on a computer, causes the computer to perform the steps performed by the network device in the method described in the foregoing embodiments shown in fig. 2 to 7.

The embodiment of the present application further provides a computer program product containing signal processing instructions, which when run on a computer, causes the computer to perform the steps performed by the terminal device in the method described in the foregoing embodiments shown in fig. 2 to 7.

Wherein any of the aforementioned processors may be a general purpose central processing unit, a microprocessor, an ASIC, or one or more integrated circuits configured to control the execution of the programs of the method of the first aspect.

Embodiments of the present application also provide a chip system, which includes a processor, and is configured to enable a network device to implement the functions referred to in the foregoing aspects, for example, to transmit or process data and/or information referred to in the foregoing methods. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the network device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

It should be noted that the above-described embodiments of the apparatus are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiments of the apparatus provided in the present application, the connection relationship between the modules indicates that there is a communication connection therebetween, and may be implemented as one or more communication buses or signal lines.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented by software plus necessary general-purpose hardware, and certainly can also be implemented by special-purpose hardware including special-purpose integrated circuits, special-purpose CPUs, special-purpose memories, special-purpose components and the like. Generally, functions performed by computer programs can be easily implemented by corresponding hardware, and specific hardware structures for implementing the same functions may be various, such as analog circuits, digital circuits, or dedicated circuits. However, for the present application, the implementation of a software program is more preferable. 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 readable storage medium, such as a floppy disk, a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk of a computer, and includes instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods described in the embodiments of the present application.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.

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

Claims

1. A method for signaling, the method comprising:

the network equipment sends first indication information to the terminal equipment, wherein the first indication information is used for indicating a first time-frequency resource set;

the network equipment determines an indication type of second indication information according to a target factor, wherein the indication type of the second indication information comprises existence of a second time-frequency resource set and nonexistence of the second time-frequency resource set, and the target factor comprises a distance between the network equipment and the terminal equipment and/or communication quality between the network equipment and the terminal equipment;

the network equipment sends the second indication information to the terminal equipment;

the network equipment sends control information to the terminal equipment on a first time-frequency resource in the first time-frequency resource set;

and under the condition that the second indication information indicates that the second time frequency resource set exists, the network equipment sends the control information to the terminal equipment on a second time frequency resource in the second time frequency resource set, wherein the second time frequency resource is contained in a plurality of time frequency resources contained in the second time frequency resource set.

2. The method of claim 1, wherein the first set of time-frequency resources and the second set of time-frequency resources are respectively located on consecutive and different symbols in a same time slot in a time domain.

3. The method according to claim 1 or 2, wherein in case that the second indication information indicates that the second set of time-frequency resources exists, the second indication information further indicates that the second set of time-frequency resources and the first set of time-frequency resources are respectively located on consecutive and different symbols within the same time slot in time domain; alternatively, the first and second electrodes may be,

and under the condition that the second indication information indicates that the second time-frequency resource set exists, the second indication information is further used for indicating that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in a time domain.

4. The method according to claim 1 or 2,

and under the condition that the second indication information indicates that the second time-frequency resource set exists, the second indication information is also used for indicating the number of symbols occupied by the second time-frequency resource set in a time period in a time domain.

5. The method of claim 3,

under the condition that the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located on continuous and different symbols in the same time slot in the time domain, the second indication information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain; alternatively, the first and second electrodes may be,

and under the condition that the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in the time domain, the second indication information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain.

6. The method according to claim 1 or 2, wherein the first time-frequency resource and the second time-frequency resource occupy the same frequency-domain resource.

7. The method according to claim 1 or 2, wherein the first time-frequency resource and the second time-frequency resource occupy the same number of symbols in time domain.

8. A method for receiving a signal, the method comprising:

the method comprises the steps that terminal equipment receives first indication information sent by network equipment, wherein the first indication information is used for indicating a first time-frequency resource set;

the terminal device receives second indication information sent by the network device, wherein the indication type of the second indication information includes the existence of a second time-frequency resource set or the absence of the second time-frequency resource set, the indication type of the second indication information is determined based on a target factor, and the target factor includes the distance between the network device and the terminal device and/or the communication quality between the network device and the terminal device;

the terminal equipment receives control information sent by the network equipment on a first time-frequency resource in the first time-frequency resource set;

and under the condition that the terminal equipment determines that the second time frequency resource set exists according to the second indication information, the terminal equipment receives the control information sent by the network equipment on a second time frequency resource in the second time frequency resource set.

9. The method of claim 8, wherein the first set of time-frequency resources and the second set of time-frequency resources are respectively located on consecutive and different symbols in a same time slot in a time domain.

10. The method according to claim 8 or 9, wherein in case that the second indication information indicates that the second set of time-frequency resources exists, the second indication information is further used for indicating that the second set of time-frequency resources and the first set of time-frequency resources are respectively located on consecutive and different symbols within the same time slot in a time domain; alternatively, the first and second electrodes may be,

11. The method according to claim 8 or 9,

12. The method of claim 10,

13. The method according to claim 8 or 9, wherein the first time-frequency resource and the second time-frequency resource occupy the same frequency-domain resource.

14. The method according to claim 8 or 9, wherein the first time-frequency resource and the second time-frequency resource occupy the same number of symbols in time domain.

15. A network device, characterized in that the network device comprises a sending unit and a determining unit, wherein,

the sending unit is configured to send first indication information to a terminal device, where the first indication information is used to indicate a first set of time and frequency resources;

the determining unit is configured to determine an indication type of second indication information according to a target factor, where the indication type of the second indication information includes existence of a second time-frequency resource set and absence of the second time-frequency resource set, and the target factor includes a distance between the network device and the terminal device and/or a communication quality between the network device and the terminal device;

the sending unit is further configured to send the second indication information to the terminal device;

the sending unit is further configured to send control information to the terminal device on a first time-frequency resource in the first set of time-frequency resources;

the sending unit is further configured to send the control information to the terminal device on a second time-frequency resource in the second time-frequency resource set when the second indication information indicates that the second time-frequency resource set exists, where the plurality of time-frequency resources included in the second time-frequency resource set include the second time-frequency resource.

16. The network device of claim 15, wherein the first set of time-frequency resources and the second set of time-frequency resources are respectively located on consecutive and different symbols in a same timeslot in a time domain.

17. The network device according to claim 15 or 16, wherein in case that the second indication information indicates that the second set of time-frequency resources exists, the second indication information further indicates that the second set of time-frequency resources and the first set of time-frequency resources are respectively located on consecutive and different symbols within the same time slot in time domain; alternatively, the first and second electrodes may be,

18. The network device of claim 15 or 16,

19. The network device of claim 17,

20. The network device according to claim 15 or 16, wherein the first time-frequency resource and the second time-frequency resource occupy the same frequency-domain resource.

21. The network device according to claim 15 or 16, wherein the first time-frequency resource and the second time-frequency resource occupy the same number of symbols in time domain.

22. A terminal device, characterized in that the terminal device comprises a receiving unit:

the receiving unit is configured to receive first indication information sent by a network device, where the first indication information is used to indicate a first set of time and frequency resources;

the receiving unit is further configured to receive second indication information sent by the network device, where an indication type of the second indication information includes existence of a second time-frequency resource set or absence of the second time-frequency resource set, and the indication type of the second indication information is determined based on a target factor, where the target factor includes a distance between the network device and the terminal device and/or a communication quality between the network device and the terminal device;

the receiving unit is further configured to receive control information sent by the network device on a first time-frequency resource of the first set of time-frequency resources;

the receiving unit is further configured to receive the control information sent by the network device on a second time-frequency resource of the second time-frequency resource set when the second indication information indicates that the second time-frequency resource set exists.

23. The terminal device of claim 22, wherein the first set of time-frequency resources and the second set of time-frequency resources are respectively located on consecutive and different symbols in a same timeslot in a time domain.

24. The terminal device according to claim 22 or 23, wherein in case that the second indication information indicates that the second set of time-frequency resources exists, the second indication information is further used to indicate that the second set of time-frequency resources and the first set of time-frequency resources are respectively located on consecutive and different symbols in the same timeslot in a time domain; alternatively, the first and second electrodes may be,

25. The terminal device according to claim 22 or 23,

26. The terminal device of claim 24,

27. The terminal device according to claim 22 or 23, wherein the first time-frequency resource and the second time-frequency resource occupy the same frequency-domain resource.

28. The terminal device according to claim 22 or 23, wherein the first time-frequency resource and the second time-frequency resource occupy the same number of symbols in time domain.

29. A network device comprising a processor and a memory, the memory storing computer-executable instructions, the processor executing the computer-executable instructions in the memory to perform the operational steps of the method of any one of claims 1 to 7 using hardware resources in the network device when the network device is run.

30. A terminal device, wherein the network device comprises a processor and a memory, the memory is used for storing computer executable instructions, and when the network device runs, the processor executes the computer executable instructions in the memory to utilize hardware resources in the network device to execute the operation steps of the method according to any one of claims 8 to 14.