CN114915370A

CN114915370A - Blind detection, information sending method, device, communication equipment and readable storage medium

Info

Publication number: CN114915370A
Application number: CN202110184936.4A
Authority: CN
Inventors: 姜大洁; 吴凯; 袁璞
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-02-10
Filing date: 2021-02-10
Publication date: 2022-08-16
Anticipated expiration: 2041-02-10
Also published as: WO2022171078A1; CN114915370B

Abstract

The embodiment of the application discloses a blind detection method, an information sending method, a device, communication equipment and a readable storage medium, and belongs to the technical field of communication. The specific implementation scheme comprises the following steps: the receiving end equipment performs blind detection on a target time frequency resource set, wherein the time frequency resources occupied by the target sequence are subsets of the target time frequency resource set. According to the scheme in the application, the statistical multiplexing gain among a plurality of sequences can be obtained, so that the resource overhead is saved.

Description

Blind detection, information sending method, device, communication equipment and readable storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to a blind detection method, an information sending method, a device, communication equipment and a readable storage medium.

Background

In a communication system, there are some sequence-based signals, such as Secondary Synchronization Signal (SSS), Primary Synchronization Signal (PSS), Channel State Information Reference Signal (CSI-RS), etc., which are transmitted at fixed time-frequency positions and detected at the fixed time-frequency positions by a terminal. In this case, since the sequence-based information occupies a fixed time-frequency position, each sequence occupies a time-frequency resource independently, and a statistical multiplexing gain cannot be obtained when each of the plurality of sequences is not determined to be transmitted, thereby resulting in a large resource overhead.

Disclosure of Invention

The embodiment of the application provides a blind detection method, an information sending method, a device, a communication device and a readable storage medium, so as to solve the problem that the resource overhead of the current sequence-based information transmission is large.

In a first aspect, a blind detection method is provided, which is performed by a receiving end device, and includes:

performing blind detection on a target sequence on a target time-frequency resource set;

wherein the time-frequency resources occupied by the target sequence are a subset of the target set of time-frequency resources.

In a second aspect, an information sending method is provided, which is performed by a sending end device, and the method includes:

sending a target sequence to receiving end equipment on a target time-frequency resource set;

In a third aspect, a blind detection apparatus is provided, which is applied to a receiving end device, and the apparatus includes:

the detection module is used for performing blind detection on a target sequence on a target time-frequency resource set;

In a fourth aspect, an information sending apparatus is provided, which is applied to sending end equipment, and the apparatus includes:

the sending module is used for sending a target sequence to the receiving end equipment on the target time-frequency resource set;

In a fifth aspect, a sink device is provided, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the first aspect.

In a sixth aspect, a transmitting end device is provided, which comprises a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the second aspect.

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

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

In this embodiment, the receiving end device may perform blind detection on a target time-frequency resource set, where the time-frequency resources occupied by the target sequence are subsets of the target time-frequency resource set. Thereby, a statistical multiplexing gain between a plurality of sequences can be obtained, thereby saving resource overhead.

Drawings

FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a flowchart of a blind detection method according to an embodiment of the present application;

FIG. 3A is one of schematic diagrams illustrating a correspondence relationship between a target time-frequency resource set and a candidate location in an embodiment of the present application;

FIG. 3B is a second diagram illustrating a corresponding relationship between a target time-frequency resource set and a candidate location in the embodiment of the present application;

fig. 3C is a third schematic diagram illustrating a corresponding relationship between a target time-frequency resource set and a candidate location in this embodiment;

FIG. 4A is one of the schematic diagrams of candidate locations in an embodiment of the present application;

FIG. 4B is a second schematic diagram of a candidate location in the embodiment of the present application;

fig. 5 is a flowchart of an information sending method according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a blind detection device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of an information sending apparatus according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

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

fig. 10 is a schematic structural diagram of a network-side device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" used herein generally refer to a class and do not limit the number of objects, for example, a first object can be one or more. In addition, "and/or" in the specification and claims means at least one of connected objects, and a character "/" generally means that the former and latter related objects are in an "or" relationship.

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

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

Optionally, the applicable scenarios in the embodiments of the present application include, but are not limited to, uplink, downlink, sidelink (sidelink), and the like.

Optionally, the receiving end device in this embodiment may be a network side device, and the sending end device is a terminal, for example, in an uplink scenario. Alternatively, the receiving end device in this embodiment may be a terminal, and the sending end device is a network side device, such as a downlink scenario. Or, the receiving end device in this embodiment may be a terminal, and the sending end device is a terminal at the same time, for example, a sidelink scenario.

The blind detection method and the information transmission method provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 2, fig. 2 is a flowchart of a blind detection method provided in an embodiment of the present application, where the method is executed by a receiving end device, and as shown in fig. 2, the method includes the following steps:

step 21: and carrying out blind detection on the target sequence on the target time frequency resource set.

In this embodiment, the time-frequency resources occupied by the target sequence are a subset of the target time-frequency resource set. The target sequence is associated with the receiving end device. The target sequence includes one or more sequences. The fact that the time-frequency resource occupied by the target sequence is a subset of the target time-frequency resource set can be understood as follows: the time frequency resources which can be occupied by the target sequence are subsets of the target time frequency resource set; it can also be understood that: the multiple sets of candidate positions corresponding to the time-frequency resources that can be occupied by the target sequence are subsets of the target time-frequency resource set, that is, the multiple sets of candidate positions of the target sequence are subsets of the target time-frequency resource set.

It should be noted that, in the embodiment of the present application, the following three cases may be included for the target sequence:

1) the time frequency resource occupied by the target sequence corresponds to a plurality of sets of candidate positions on the target time frequency resource set, and only one target sequence is occupied. The receiving end equipment needs to carry out blind detection on the target sequence at a plurality of sets of candidate positions; the target sequence received by the receiving end device is located at one set of candidate positions.

2) The time frequency resources occupied by the target sequence correspond to a unique set of candidate positions on the target time frequency resource set, and the target sequence may include a plurality of sequences. The receiving end equipment needs to carry out blind detection on a plurality of target sequences at a set of only candidate positions; the target sequence received by the receiving end device may be one or more.

3) The time-frequency resources occupied by the target sequence correspond to multiple sets of candidate positions on the target time-frequency resource set, and the target sequence may include multiple sequences. The receiving end device needs to perform blind detection on multiple target sequences at multiple sets of candidate positions. The target sequence received by the receiving end device may be one or more, one target sequence received by the receiving end device is located at one set of candidate positions, and the candidate positions where different target sequences are located may be different.

Optionally, the target time-frequency resource set may satisfy any one of the following:

1) the target set of time-frequency resources is protocol defined. For example, a protocol may define which symbols, which Resource Blocks (RBs), etc. are occupied by a target set of time-frequency resources.

2) The configuration of the target time-frequency resource set is notified to the receiving end equipment by the sending end equipment. For example, the sending end device may send the configuration of the target time-frequency resource set to the receiving end device through RRC signaling.

3) The configuration of the target time frequency resource set is notified to the receiving end equipment by the sending end equipment, and belongs to at least one of N target time frequency resource sets defined by the protocol. N is an integer greater than or equal to 1. For example, the protocol defines N target time-frequency resource sets, and the sending end device designates at least one of the N target time-frequency resource sets to the receiving end device.

Optionally, one or more target sequences associated with the receiving end device may satisfy any one of the following:

1) the target sequence is protocol defined.

2) The target sequence is notified to the receiving device by the transmitting device.

3) The target sequence is notified to the receiving device by the sending device and belongs to at least one of Q target sequences defined by the protocol. Q is an integer greater than or equal to 1. For example, the protocol defines Q target sequences, and the sending device assigns at least one of the Q target sequences to the receiving device.

4) The target sequence is determined by the receiving end device based on a preset rule. Wherein the preset rule may be protocol defined. For example, a receiving end device such as a terminal may calculate a target sequence associated therewith according to terminal identification information (UE ID) and a preset rule.

In one embodiment, all or part of the bits of the UE ID may be associated with at least one of the following parameters of the target sequence:

a sequence index of the target sequence;

when the target sequence is a ZC sequence, a root index and/or a cyclic shift value of the target sequence;

when the target sequence is a Gold sequence, an initialization state of the target sequence, or a combination of cyclic shift values of two M sequences of the target sequence generating the Gold sequence;

when the target sequence is an M sequence, at least one of a shift value, an initialization state, a primitive polynomial, and an intercept position of a shift register output of the target sequence;

orthogonal Cover Code (OCC) of the target sequence.

The UE ID is one of an International Mobile Subscriber Identity (IMSI), an International Mobile Equipment Identity (IMEI), a Temporary Mobile Subscriber Identity (TMSI), a Serving Temporary Mobile Subscriber Identity (S-TMSI) (e.g., 5G-S-TMSI), or a partial bit of the UE ID, e.g., the last 10 bits of the 5G-S-TMSI, or other types of UE IDs.

For example, the protocol defines preset rules as: the value of each bit of the UE ID plus a preset value is equal to the sequence index of the target sequence. The preset value is, for example, 1, 3, etc. Therefore, the UE can obtain the sequence index of the target sequence by combining the ID of the UE and the preset rule, and further determine the target sequence associated with the UE;

for another example, the UE ID is mapped to a sequence index through a hash function, and then a target sequence associated with the UE is determined;

for another example, a sequence index is calculated from the UE ID by the following formula, and a target sequence associated with the UE is determined. Sequence index Floor [ UE _ ID/X ] mod Y; where X is a constant, Y is the number of sequence indices, mod represents modulo operation, and Floor represents rounding.

In the blind detection method of the embodiment of the application, the receiving end device may perform blind detection on the target time-frequency resource set, where the time-frequency resources occupied by the target sequence are subsets of the target time-frequency resource set. Thereby, a statistical multiplexing gain between a plurality of sequences can be obtained, thereby saving resource overhead.

In the embodiment of the present application, in order to obtain statistical multiplexing gains among multiple sequences, the target time-frequency resource set includes multiple sets of candidate positions of the target sequence, that is, multiple sets of candidate (candidate) positions of time-frequency resources that can be occupied by the target sequence are corresponding to the target time-frequency resource set. Further, the receiving end device may perform blind detection on the target sequence at multiple sets of candidate positions.

Understandably, candidate positions may also be referred to as sequence candidate positions. The candidate position in the target time-frequency resource set is a carrier for bearing the sequence. Each candidate location may carry a sequence. For a receiving end device, the same candidate position may carry a target sequence corresponding to the receiving end device, or a target sequence of a plurality of target sequences corresponding to the receiving end device. If the target sequence is one of the target sequences corresponding to the receiving end device, the receiving end device does not determine which target sequence is carried by the candidate position, and therefore the receiving end device needs to perform blind detection on the plurality of target sequences at the candidate position.

Optionally, the correspondence between the target time-frequency resource set and the multiple sets of candidate positions may satisfy any one of the following:

the correspondence is protocol defined;

the corresponding relation is notified to the receiving end equipment by the sending end equipment;

the corresponding relation is notified to the receiving end equipment by the sending end equipment and belongs to one of M corresponding relations defined by a protocol; m is an integer greater than or equal to 1.

For example, fig. 3A is a first schematic diagram of a corresponding relationship between a target time-frequency resource set and a candidate location in the embodiment of the present application, fig. 3B is a second schematic diagram of a corresponding relationship between a target time-frequency resource set and a candidate location in the embodiment of the present application, and fig. 3C is a third schematic diagram of a corresponding relationship between a target time-frequency resource set and a candidate location in the embodiment of the present application. The target time-frequency resource sets shown in fig. 3A, fig. 3B and fig. 3C include four basic units, i.e. 4 unfilled squares in the drawings. Assuming that the time domain of each basic unit occupies 1 symbol length, the frequency domain occupies 12 RBs, and 144 Resource Elements (REs) are total, the shortest sequence length is 144 REs, i.e., one basic unit is occupied.

As shown in fig. 3A, the target time-frequency resource set in fig. 3A corresponds to two candidate positions, that is, candidate position 1 and candidate position 2, that is, resources corresponding to two different filling patterns in fig. 3A, and each candidate position occupies two basic units. As shown in fig. 3B, the target time-frequency resource set in fig. 3B corresponds to four candidate positions, i.e., candidate position 3, candidate position 4, candidate position 5, and candidate position 6, i.e., resources corresponding to four different filling patterns in fig. 3B, and each candidate position occupies one basic unit. As shown in fig. 3C, the target time-frequency resource set in fig. 3C corresponds to six candidate positions, i.e., candidate position 7, candidate position 8, candidate position 9, candidate position 10, candidate position 11, and candidate position 12, i.e., resources corresponding to six different filling patterns in fig. 3C, where the candidate positions occupy one or two basic units. It should be noted that the candidate locations shown in fig. 3A, fig. 3B, and fig. 3C are consecutive, but the embodiment is not limited thereto, and in some cases, the candidate locations corresponding to the target time-frequency resource set may also be non-consecutive.

Optionally, each of the candidate positions in the multiple sets of candidate positions may correspond to one or more target sequences. In this case, the receiving end device may perform blind detection on one or more target sequences corresponding to a first candidate location at the first candidate location, where the first candidate location is one of the multiple sets of candidate locations.

Optionally, each target sequence in the plurality of target sequences may correspond to one or more sets of candidate positions. In this case, the receiving end device may perform blind detection on the first target sequence at one or more sets of candidate positions corresponding to the first target sequence, where the first target sequence is one of the multiple target sequences.

Optionally, the target sequences may satisfy at least one of the following characteristics:

1) the sequence lengths of the plurality of target sequences are different;

2) sequence indices (indexes) of the plurality of target sequences are different;

3) the sequence generation parameters of the plurality of target sequences are different.

Further, the sequence generation parameters of the plurality of target sequences may differ by at least one of:

a) when the plurality of target sequences are ZC sequences, root indexes and/or cyclic shift values of the plurality of target sequences are different. That is, if the plurality of target sequences are ZC sequences, the root index and/or cyclic shift value of the plurality of target sequences may be different.

b) When the plurality of target sequences are Gold sequences, the initialization states (Cinit) of the plurality of target sequences are different. For example, terminals with different ID can detect the initialization status of the sequence corresponding to their ID.

Alternatively, when the plurality of target sequences are Gold sequences, a combination of cyclic shift values (cyclic shift) of two M sequences of the plurality of target sequences generating the Gold sequences is different.

c) When the plurality of target sequences are M-sequences, at least one of a shift value, an initialization state, a primitive polynomial, and an intercept position of a shift register output of the plurality of target sequences is different.

In this c), the difference in primitive polynomial may be equivalent to the difference in shift register for generating the sequence. The truncated position of the shift register output may be similar to the parameter in the protocol where pin NC equals 1600.

d) When the plurality of target sequences belong to the preset sequence set, the sequence index values of the plurality of target sequences are different. The sequences in the predetermined set of sequences are, for example, Computer Generated Sequences (CGS).

e) When the target sequence occupies a plurality of symbols, the phase difference between the symbols of the plurality of target sequences is different.

f) The Orthogonal Cover Codes (OCCs) of the multiple target sequences are different. I.e., the different target sequences are different OCC sequences.

g) When the target sequence is obtained by inter-modulating at least two same or different sequences in the preset sequence set, at least one of a root index, an initialization state, and a shift value of the plurality of target sequences is different. Such as multiplication of the respective sequences, etc.

In the embodiment of the present application, to avoid wasting resources, when the receiving end device detects the target sequence at the second candidate position of the multiple sets of candidate positions, the receiving end device may stop the blind detection of the target time-frequency resource set. The second candidate location is one of the plurality of candidate locations.

For example, the receiving end device associates with a target sequence, and if the receiving end device detects the target sequence at a set of sequence candidate positions of the target time-frequency resource set, the receiving end device may stop the blind detection of the target time-frequency resource set.

For another example, the receiving end device associates two target sequences, and if the receiving end device detects the two target sequences at two sets of sequence candidate positions of the target time-frequency resource set, the receiving end device may stop the blind detection of the target time-frequency resource set.

In the embodiment of the present application, the target sequence associated with the receiving end device may satisfy at least one of the following: continuous time domain, continuous frequency domain, discontinuous time domain and discontinuous frequency domain. The time-domain discontinuity may also be referred to as time-domain dispersion, and the frequency-domain discontinuity may also be referred to as frequency-domain dispersion.

Optionally, when the target sequence satisfies time domain continuity and/or frequency domain continuity, a set of candidate positions of the target sequence may correspond to a segment of continuous time-frequency resources of the target time-frequency resource set, that is, a segment of continuous time-frequency resources of the target time-frequency resource set may be mapped to a candidate position. As shown in fig. 4A, a segment of consecutive frequency-domain resources of the target time-frequency resource set corresponds to a candidate position 1.

Or, when the target sequence satisfies time domain discontinuity and/or frequency domain discontinuity, a set of candidate positions of the target sequence may correspond to discontinuous time frequency resources of the target time frequency resource set, that is, a continuous time frequency resource of the target time frequency resource set may be mapped to N (N >1) candidate positions. As shown in fig. 4B, a continuous segment of frequency domain resources of the target time-frequency resource set corresponds to discrete candidate positions 2 and 3.

In this embodiment, if the receiving end device detects a second target sequence of the multiple target sequences, for example, when the second target sequence is detected at a set of candidate positions, the receiving end device may determine at least one of the following information according to the second target sequence:

a) information corresponding to the second target sequence. For example, the information corresponding to the first target sequence may be information corresponding to an index of the first target sequence. Different target sequences may indicate different behavior of the receiving device.

b) And information corresponding to the candidate position of the second target sequence. For example, the information corresponding to the candidate position may be information corresponding to an index of the candidate position. When the receiving end device detects the first target sequence on different resources, the behavior performed by the receiving end device may be different.

Optionally, in order to detect the target sequence in time, the receiving end device may also perform blind detection on the target sequence periodically on the target time-frequency resource set. And at least one of a period, an offset (offset), and a duration (duration) of the blind detection may be transmitted from the transmitting side device to the receiving side device. This configuration may be similar to the concept of the search space configuration.

Optionally, the number of blind detections of the target time-frequency resource set by the receiving end device does not exceed the upper limit of the number of blind detections. The upper limit of the blind detection number may be defined by a protocol or the sending end device may notify the receiving end device of a capability. Therefore, the receiving end equipment can be prevented from executing excessive blind detection processes, and the complexity of the receiving end equipment is reduced.

For example, the blind detection times of the receiving end device in each target time-frequency resource set do not exceed the upper limit of the blind detection number; the blind detection times comprise the blind detection times of all target sequences.

For another example, in each target time-frequency resource set, the blind detection times of the receiving end device on each type or each target sequence do not exceed the upper limit of the blind detection number; wherein, the upper limit of the blind detection quantity corresponding to each type or each target sequence is the same or different; each class of target sequence contains a plurality of target sequences of the same length.

For another example, in each target time-frequency resource set, the blind detection times of the receiving end device on each type of candidate position do not exceed the upper limit of the blind detection number; wherein, the upper limit of the blind detection number corresponding to each type of candidate position is the same or different; each class of candidate locations contains the same amount of time-frequency resources.

Optionally, the blind detection of the receiving end device on one target time-frequency resource set is limited to M target sequences. The number of all target sequences associated with the receiving end device is N. M < N. The M is defined by a protocol or the sending end device is used as a capability to inform the receiving end device. Therefore, the receiving end equipment can be prevented from executing excessive blind detection processes, and the complexity of the receiving end equipment is reduced.

Optionally, the target sequence of blind detection of the receiving end device on one target time-frequency resource set is limited to M1 lengths. All target sequences associated with the receiving end device include N1 lengths. M1< N1. The M1 is protocol defined or the sender device acts as a capability notification to the receiver device. Therefore, the receiving end equipment can be prevented from executing excessive blind detection processes, and the complexity of the receiving end equipment is reduced.

As an alternative embodiment, a receiving end device, such as a terminal, may receive configuration Information of a target time-frequency resource set, such as configuration Information of a specific time-frequency position of the target time-frequency resource set, which is carried by a Master Information Block (MIB), and then blindly detect a target sequence on the corresponding target time-frequency resource set, where the target sequence may be SIB1 based on the sequence.

As an optional embodiment, a receiving end device such as a terminal may perform downlink synchronization or Radio Resource Management (RRM) measurement through a target sequence.

As an alternative embodiment, the target sequence may be repeatedly transmitted through a plurality of beams (beams), or the target sequence may be repeatedly transmitted in the time domain.

As an alternative embodiment, the target sequence is quasi co-located (QCL) with at least one of: synchronization Signal Block (SSB), CSI-RS, Demodulation Reference Signal (DMRS), and the like. In this way, blind detection of a target sequence may be facilitated by the SSB, CSI-RS and/or DMRS being quasi-co-located with the target sequence.

Wherein, the quasi co-located Type includes any one of four types of types in the following table 1.

TABLE 1

QCL type	Characteristics of
		QCL-Type A	Doppler shift, Doppler spread, average delay, delay spread
QCL-Type B	Doppler shift, doppler spread
		QCL-Type C	Doppler shift, average delay
QCL-Type D	Spatial reception parameters

In the embodiment of the application, after the receiving end device detects the target sequence on the target time-frequency resource set, the receiving end device can execute corresponding behaviors. The present application is described below in conjunction with three application scenarios.

Application scenario 1

In this application scenario 1, the receiving end device is a terminal, and the terminal is, for example, a Reconfigurable Intelligent Surface (RIS), a relay device, a backscattering backscatter device, or the like. The target sequence includes control information for the terminal. The information related to the target sequence may indicate at least one of:

identification of the terminal, and operating mode of the terminal.

Wherein the operation mode of the terminal is associated with a beam and/or a signal phase of the terminal. The operating mode of the terminals can be controlled by adjusting the switching on or off of the control devices of the RIS, such as varactors or switching diodes.

Wherein the related information of the target sequence may include at least one of:

detecting information of candidate positions of a target sequence; for example, the information is an index or the like;

information of the target sequence; for example, the information is an index, a sequence length, a sequence generation parameter, and the like.

For example, if a RIS detects a target sequence at candidate position 1 of a target time-frequency resource set, the RIS can adjust a reflected beam of the terminal to beam 1 corresponding to candidate position 1. For another example, if a RIS detects a plurality of target sequences at candidate positions corresponding to the RIS ID and detects target sequence 1, the RIS can adjust the RIS reflection beam to beam 2 corresponding to target sequence 1.

Taking the terminal as an example of the RIS, the network-side device can send sequence-based control information to the RIS to instruct the working mode of the RIS. In addition to having a passive smart surface, the RIS can also have a relatively simple receiver to detect sequences sent by the network-side device.

For example, when the network-side device sends sequence-based control information to the RIS, at least one of the sequence's position and sequence index may indicate at least one of the RIS ID and RIS working mode. Wherein, the sequence index needs RIS to be detected blindly. The operating mode of the RIS is associated with the beams and/or signal phases of the RIS. For example, if a RIS detects a target sequence at a sequence candidate position N, the RIS can adjust the RIS reflection beam to beam N. For another example, one RIS detects a plurality of target sequences at sequence candidate positions corresponding to the RIS ID, and if a target sequence a is detected, the RIS can adjust the RIS reflection beam to a beam a. For another example, if the target sequence is a Gold sequence, the RIS can detect the initialized state Cinit corresponding to its ID, that is, the RIS with different IDs can detect the initialized state Cinit corresponding to its ID.

Application scenario 2

In this application scenario 2, the receiving end device is a terminal UE. The target sequence includes a sequence-based advance indication signal. And the network side equipment sends a sequence-based advance indication signal to the UE. The resource of the advance indication signal which needs to be detected by the UE belongs to a target time frequency resource set, and the UE needs to blindly detect a target sequence on the target time frequency resource set. Since the plurality of early indication signals based on the sequence may or may not be transmitted, and the plurality of early indication signals share one target time frequency resource set, compared with the case that each possible early indication signal occupies a fixed time frequency resource individually, the total resource consumption is less.

Optionally, when the target sequence includes a sequence-based early indication signal, the related information of the target sequence indicates at least one of:

a terminal grouping index of a Paging Occasion (PO) corresponding to the indication signal is advanced;

indexes of a plurality of POs corresponding to the advanced indication signal;

the terminal grouping indexes of a plurality of POs corresponding to the indication signal are advanced;

the terminal may or may not need to monitor the corresponding physical downlink control channel for paging.

Note that the index of the target sequence needs to be obtained by blind detection of the terminal. In this scenario, the terminal may be in an idle (idle) state or an inactive (inactive) state.

Application scenario 3

In this application scenario 3, the receiving end device is a terminal UE. The target sequence includes control information for the terminal. For UE power saving, the UE may only maintain a simple receiver (Low power receiver) at some time, for example, in idle state, to receive signaling that may be sent by a network side device, such as a base station, for example, signaling to enter a connected state. At this time, the network side device transmits sequence-based control information to the UE.

Optionally, when the target sequence includes sequence-based control information, at least one of a position of the target sequence and an index of the target sequence may indicate at least one of:

the terminal enters a connection state;

the terminal initiates random access;

the terminal reads all or part of the system message; the part of the system message can be a certain item or several items of system messages;

the method comprises the steps that a terminal reads information of at least one of an Earthquake and Tsunami Warning System (ETWS) and a Commercial Mobile Alert Service (CMAS) to obtain emergency information such as Earthquake information, Tsunami information and alarm information;

a terminal sends a Scheduling Request (SR);

the terminal starts a transceiver;

the terminal searches for a cell;

an identification of the terminal, such as a terminal index.

detecting information of candidate positions of a target sequence; for example, the information is an index or the like.

It should be noted that the above application scenarios are only illustrative and are not limiting. For example, the present application may also be applied to sidelink scenarios, where the device a may send control signaling or data to the device B through the sequence.

Referring to fig. 5, fig. 5 is a flowchart of an information sending method according to an embodiment of the present application, where the method is executed by a sending end device, and as shown in fig. 5, the method includes the following steps:

step 51: and sending the target sequence to the receiving terminal equipment on the target time-frequency resource set.

In this embodiment, the time-frequency resources occupied by the target sequence are a subset of the target time-frequency resource set. The target sequence is associated with the receiving end device. The target sequence may be one or more.

In one embodiment, a sending end device sends one or more target sequences on a target time-frequency resource set, where the one or more target sequences are oriented to the same or different receiving end devices. The position of the one or more target sequences in the time-frequency resources of the target time-frequency resource set is not fixed.

According to the information sending method in the embodiment of the application, the sending end device can send the target sequence to the receiving end device on the target time frequency resource set, and the time frequency resources occupied by the target sequence are subsets of the target time frequency resource set. Thereby, a statistical multiplexing gain between a plurality of sequences can be obtained, thereby saving resource overhead.

Optionally, the target time-frequency resource set includes multiple sets of candidate positions of the target sequence; the sending end device may send the target sequence to the receiving end device through at least one of the multiple sets of candidate positions.

the target time frequency resource set is defined by a protocol;

the target time frequency resource set is notified to the receiving end equipment by the sending end equipment;

the target time frequency resource set is notified to the receiving end equipment by the sending end equipment and belongs to at least one of N target time frequency resource sets defined by a protocol; n is an integer greater than or equal to 1.

Optionally, the target sequence may satisfy at least one of:

the time domain is continuous;

the frequency domain is continuous;

time domain discontinuity;

the frequency domain is discontinuous.

Optionally, when the target sequence satisfies time domain continuity and/or frequency domain continuity, one candidate position corresponds to a segment of continuous time-frequency resources of the target time-frequency resource set; or, when the target sequence satisfies time domain discontinuity and/or frequency domain discontinuity, one candidate position corresponds to a discontinuous time-frequency resource of the target time-frequency resource set.

Optionally, the sending end device is a network side device, and the target sequence includes control information for a terminal; the related information of the target sequence indicates at least one of:

the identification of the terminal and the working mode of the terminal;

wherein the operation mode of the terminal is associated with a beam and/or a signal phase of the terminal.

Optionally, the sending end device is a network side device, and the target sequence includes a sequence-based advance indication signal; the related information of the target sequence indicates at least one of:

a terminal grouping index of a PO corresponding to the advanced indication signal;

indexes of a plurality of POs corresponding to the advanced indication signal;

the terminal grouping indexes of a plurality of POs corresponding to the advanced indication signal;

Optionally, the sending end device is a network side device, and the target sequence includes sequence-based control information; the related information of the target sequence indicates at least one of:

the terminal enters a connection state;

the terminal initiates random access;

the terminal reads all or part of the system message;

the terminal reads the emergency information;

the terminal sends a scheduling request;

the terminal starts a transceiver;

the terminal carries out cell search;

an index of the terminal.

Optionally, the information related to the target sequence may include at least one of:

It should be noted that in the blind detection method provided in the embodiment of the present application, the execution subject may be a blind detection device, or a control module in the blind detection device for executing the blind detection method. The blind detection device provided by the embodiment of the present application is described by taking the blind detection device as an example to execute the blind detection method.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a blind detection apparatus according to an embodiment of the present application, which is applied to a receiving end device, and as shown in fig. 6, the blind detection apparatus 60 includes:

the detection module 61 is configured to perform blind detection on a target time-frequency resource set on a target sequence;

Optionally, the target time-frequency resource set includes multiple sets of candidate positions of the target sequence; the detection module 61 is specifically configured to:

blind detection is performed on the target sequence at the plurality of sets of candidate locations.

Optionally, each set of candidate positions in the multiple sets of candidate positions corresponds to one or more target sequences; the detection module 61 is specifically configured to:

blind detection is carried out on one or more target sequences corresponding to a first candidate position on the first candidate position, wherein the first candidate position is one of the multiple candidate positions;

optionally, the receiving end device associates multiple target sequences, where each target sequence in the multiple target sequences corresponds to one or more sets of candidate positions; the detection module 61 is specifically configured to:

and performing blind detection on the first target sequence at one or more sets of candidate positions corresponding to the first target sequence, wherein the first target sequence is one of the target sequences.

Optionally, the plurality of target sequences satisfy at least one of the following characteristics:

the sequence lengths of the plurality of target sequences are different;

the sequence indexes of the plurality of target sequences are different;

the sequence generation parameters of the plurality of target sequences are different.

Optionally, the sequence generation parameters of the plurality of target sequences are different, and include at least one of:

when the plurality of target sequences are ZC sequences, root indexes and/or cyclic shift values of the plurality of target sequences are different;

when the plurality of target sequences are Gold sequences, initialization states of the plurality of target sequences are different, or combinations of cyclic shift values of two M sequences of the plurality of target sequences generating Gold sequences are different;

when the plurality of target sequences are M-sequences, at least one of shift values, initialization states, primitive polynomials, and intercept positions of shift register outputs of the plurality of target sequences are different;

when the target sequences belong to a preset sequence set, the sequence index values of the target sequences are different;

when the target sequence occupies a plurality of symbols, phase differences between symbols of the plurality of target sequences are different;

the orthogonal cover codes OCC of the target sequences are different;

when the target sequence is obtained by inter-modulating at least two same or different sequences in a preset sequence set, at least one of a root index, an initialization state and a shift value of the plurality of target sequences is different.

Optionally, the blind detecting device 60 further includes:

a control module, configured to stop blind detection on the target time-frequency resource set when the target sequence is detected at a second candidate position of the multiple sets of candidate positions, where the second candidate position is one of the multiple sets of candidate positions.

Optionally, the target sequence satisfies at least one of the following:

the time domain is continuous;

the frequency domain is continuous;

the time domain is discontinuous;

the frequency domain is discontinuous.

Optionally, when the target sequence satisfies time domain continuity and/or frequency domain continuity, a set of candidate positions of the target sequence corresponds to a continuous time-frequency resource of the target time-frequency resource set;

or, when the target sequence satisfies time domain discontinuity and/or frequency domain discontinuity, a set of candidate positions of the target sequence corresponds to discontinuous time-frequency resources of the target time-frequency resource set.

Optionally, the correspondence between the target time-frequency resource set and the multiple sets of candidate positions satisfies any one of the following relationships:

the correspondence is protocol defined;

Optionally, the receiving end device is a terminal, and the target sequence includes control information for the terminal; the related information of the target sequence indicates at least one of:

the identification of the terminal and the working mode of the terminal;

Optionally, the receiving end device is a terminal, and the target sequence includes a sequence-based advance indication signal; the related information of the target sequence indicates at least one of:

a terminal grouping index of a paging occasion PO corresponding to the advance indication signal;

indexes of a plurality of POs corresponding to the advanced indication signal;

the terminal enters a connection state;

the terminal initiates random access;

the terminal reads all or part of the system information;

the terminal reads the information of at least one item of ETWS and CMAS;

the terminal sends a scheduling request;

the terminal starts a transceiver;

the terminal carries out cell search;

and the identification of the terminal.

Optionally, the related information of the target sequence includes at least one of:

detecting information of candidate positions of the target sequence;

information of the target sequence.

Optionally, the target sequence satisfies any one of the following conditions:

the target sequence is protocol defined;

the target sequence is notified to the receiving end equipment by the sending end equipment;

the target sequence is notified to the receiving end equipment by the sending end equipment and belongs to at least one of Q target sequences defined by a protocol; q is an integer greater than or equal to 1;

the target sequence is determined by the receiving end device based on a preset rule.

Optionally, the detection module 61 is specifically configured to:

and periodically performing blind detection on the target sequence on the target time frequency resource set.

Optionally, at least one of the period, the offset, and the duration of the blind detection is sent to the receiving end device by the sending end device.

Optionally, the blind detection times of the receiving end device in the target time-frequency resource set do not exceed the upper limit of the blind detection number; wherein, the upper limit of the blind detection number is defined by a protocol or is notified to the receiving end device by the sending end device.

Optionally, the blind detecting device 60 further includes:

and the processing module is used for performing downlink synchronization or Radio Resource Management (RRM) measurement through the target sequence.

Optionally, the target sequence is repeatedly transmitted through a plurality of beams, or the target sequence is repeatedly transmitted in a time domain.

Optionally, the target sequence is quasi co-located with at least one of:

a synchronization signal block SSB;

a channel state information reference signal, CSI-RS;

demodulation reference signals (DMRS).

Optionally, the target time-frequency resource set satisfies any one of the following conditions:

the target time frequency resource set is defined by a protocol;

the configuration of the target time frequency resource set is notified to the receiving end equipment by the sending end equipment;

the configuration of the target time frequency resource set is notified to the receiving end equipment by the sending end equipment and belongs to at least one of N target time frequency resource sets defined by a protocol; n is an integer greater than or equal to 1.

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

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

The blind detection device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 2, and achieve the same technical effect, and is not described here again to avoid repetition.

In the information sending method provided in the embodiment of the present application, the execution subject may be an information sending apparatus, or a control module in the information sending apparatus for executing the information sending method. In the embodiments of the present application, an information transmitting apparatus that executes an information transmitting method is taken as an example, and the information transmitting apparatus provided in the embodiments of the present application is described.

Referring to fig. 7, fig. 7 is a schematic structural diagram of an information sending apparatus according to an embodiment of the present application, where the apparatus is applied to a sending-end device, and as shown in fig. 7, the information sending apparatus 70 includes:

a sending module 71, configured to send a target sequence to a receiving end device on a target time-frequency resource set;

Optionally, the target time-frequency resource set includes multiple sets of candidate positions of the target sequence; the sending module 71 is further configured to: and sending the target sequence to the receiving end equipment through at least one of the multiple sets of candidate positions.

the target set of time-frequency resources is protocol defined;

Optionally, the target sequence satisfies at least one of the following:

the time domain is continuous;

the frequency domain is continuous;

time domain discontinuity;

the frequency domain is discontinuous.

Optionally, when the target sequence satisfies time domain continuity and/or frequency domain continuity, one candidate position of the target sequence corresponds to a segment of continuous time-frequency resources of the target time-frequency resource set;

or, when the target sequence satisfies time domain discontinuity and/or frequency domain discontinuity, one candidate position of the target sequence corresponds to a discontinuous time frequency resource of the target time frequency resource set.

the identification of the terminal and the working mode of the terminal;

indexes of a plurality of POs corresponding to the advanced indication signal;

the terminal grouping indexes of a plurality of POs corresponding to the early indication signal;

the terminal enters a connection state;

the terminal initiates random access;

the terminal reads all or part of the system information;

the terminal reads the emergency information;

the terminal sends a scheduling request;

the terminal starts a transceiver;

the terminal carries out cell search;

an index of the terminal.

The information sending apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 5, and achieve the same technical effect, and is not described here again to avoid repetition.

Optionally, as shown in fig. 8, an embodiment of the present application further provides a communication device 80, which includes a processor 81, a memory 82, and a program or an instruction stored on the memory 82 and executable on the processor 81, for example, when the communication device 80 is a receiving-end device, the program or the instruction is executed by the processor 81 to implement the processes of the blind detection method embodiment, and the same technical effect can be achieved. When the communication device 80 is a sending-end device, the program or the instructions are executed by the processor 81 to implement the processes of the above-mentioned information sending method embodiment, and the same technical effect can be achieved, and for avoiding repetition, the details are not described here again.

Fig. 9 is a schematic diagram of a hardware structure of a terminal implementing the embodiment of the present application.

The terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, and a processor 910.

Those skilled in the art will appreciate that the terminal 900 may further include a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 910 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system. The terminal structure shown in fig. 9 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and thus will not be described again.

It should be understood that, in the embodiment of the present application, the input Unit 904 may include a Graphics Processing Unit (GPU) 9041 and a microphone 9042, and the Graphics processor 9041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 907 includes a touch panel 9071 and other input devices 9072. A touch panel 9071, also called a touch screen. The touch panel 9071 may include two parts, a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment of the application, the radio frequency unit 901 receives downlink data from a network side device and then processes the downlink data to the processor 910; in addition, the uplink data is sent to the network side equipment. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 909 can be used to store software programs or instructions as well as various data. The memory 909 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 909 may include a high-speed random access Memory and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (Erasable PROM, EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 910 may include one or more processing units; alternatively, the processor 910 may integrate an application processor, which mainly handles operating systems, user interfaces, and applications or instructions, etc., and a modem processor, which mainly handles wireless communications, such as a baseband processor. It is to be appreciated that the modem processor described above may not be integrated into processor 910.

Optionally, when the terminal 900 is a receiving end device, the processor 910 is configured to perform blind detection on a target sequence on a target time-frequency resource set; the time frequency resources occupied by the target sequence are subsets of the target time frequency resource set.

It can be understood that, when the terminal 900 in the embodiment of the present application is a receiving end device, each process implemented in the method embodiment shown in fig. 2 may be implemented, and the same technical effect is achieved, and for avoiding repetition, details are not repeated here.

Optionally, when the terminal 900 is a sending end device, the radio frequency unit 901 is configured to send a target sequence to a receiving end device on a target time-frequency resource set; the time-frequency resources occupied by the target sequence are a subset of the target set of time-frequency resources.

It can be understood that, when the terminal 900 in this embodiment is a sending-end device, each process implemented in the method embodiment shown in fig. 5 can be implemented, and the same technical effect is achieved, and details are not repeated here to avoid repetition.

Specifically, the embodiment of the application further provides a network side device. As shown in fig. 10, the network device 100 includes: antenna 101, radio frequency device 102, baseband device 103. Antenna 101 is connected to radio frequency device 102. In the uplink direction, rf device 102 receives information via antenna 101 and sends the received information to baseband device 103 for processing. In the downlink direction, the baseband device 103 processes information to be transmitted and transmits the information to the rf device 102, and the rf device 102 processes the received information and transmits the processed information through the antenna 101.

The above-mentioned band processing apparatus may be located in the baseband apparatus 103, and the method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 103, where the baseband apparatus 103 includes the processor 104 and the memory 105.

The baseband apparatus 103 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 10, where one of the chips, for example, the processor 104, is connected to the memory 105 to call up a program in the memory 105 to perform the network device operations shown in the above method embodiments.

The baseband device 103 may further include a network interface 106, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 102.

Specifically, the network side device in the embodiment of the present application further includes: the instructions or programs stored in the memory 105 and capable of being executed on the processor 104, and the processor 104 invokes the instructions or programs in the memory 105 to execute the methods executed by the modules shown in the figures of the virtual device shown in fig. 6 or 7, and achieve the same technical effects, which are not described herein for avoiding repetition.

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

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

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or an instruction to implement each process of the blind detection method embodiment or each process of the information sending method embodiment, and may achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.

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

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

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

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

Claims

1. A blind detection method, performed by a receiving end device, the method comprising:

2. The method of claim 1, wherein the target set of time-frequency resources comprises a plurality of sets of candidate positions for the target sequence;

the blind detection of the target sequence on the target time frequency resource set comprises the following steps:

3. The method of claim 2,

each set of candidate locations in the plurality of sets of candidate locations corresponds to one or more target sequences; the blind detection of the target sequence at the plurality of sets of candidate locations comprises:

blind detection is carried out on one or more target sequences corresponding to a first candidate position at the first candidate position, wherein the first candidate position is one of the multiple sets of candidate positions;

or,

the receiving end equipment is associated with a plurality of target sequences, and each target sequence in the plurality of target sequences corresponds to one set or a plurality of sets of candidate positions; the blind detection of the target sequence at the plurality of sets of candidate locations comprises:

4. The method of claim 3, wherein the plurality of target sequences are characterized by at least one of:

the sequence lengths of the plurality of target sequences are different;

the sequence indexes of the plurality of target sequences are different;

5. The method of claim 4, wherein the sequence generation parameters of the plurality of target sequences differ by at least one of:

when the plurality of target sequences are ZC sequences, the root index and/or the cyclic shift value of the plurality of target sequences are different;

when the plurality of target sequences are M sequences, at least one of a shift value, an initialization state, a primitive polynomial, and an intercept position of a shift register output of the plurality of target sequences is different;

the orthogonal cover codes OCC of the target sequences are different;

6. The method of claim 2, further comprising:

stopping blind detection of the target time-frequency resource set when the target sequence is detected at a second candidate position of the plurality of sets of candidate positions, wherein the second candidate position is one of the plurality of sets of candidate positions.

7. The method of claim 2, wherein the target sequence satisfies at least one of:

the time domain is continuous;

the frequency domain is continuous;

the time domain is discontinuous;

the frequency domain is discontinuous.

8. The method of claim 7, wherein when the target sequence satisfies time domain continuity and/or frequency domain continuity, the set of candidate positions of the target sequence corresponds to a continuous segment of time-frequency resources of the target set of time-frequency resources;

or,

when the target sequence satisfies time domain discontinuity and/or frequency domain discontinuity, a set of candidate positions of the target sequence corresponds to discontinuous time frequency resources of the target time frequency resource set.

9. The method of claim 2, wherein the correspondence between the target set of time-frequency resources and the plurality of sets of candidate locations satisfies any one of the following relationships:

the correspondence is protocol defined;

10. The method of claim 1, wherein the receiving end device is a terminal, and the target sequence comprises control information for the terminal; the related information of the target sequence indicates at least one of:

the identification of the terminal and the working mode of the terminal;

11. The method of claim 1, wherein the receiving end device is a terminal, and wherein the target sequence comprises a sequence-based early indication signal; the related information of the target sequence indicates at least one of:

indexes of a plurality of POs corresponding to the advanced indication signal;

12. The method of claim 1, wherein the receiving end device is a terminal, and the target sequence comprises control information for the terminal; the related information of the target sequence indicates at least one of:

the terminal enters a connection state;

the terminal initiates random access;

the terminal reads all or part of the system information;

the terminal reads information of at least one of an Earthquake and Tsunami Warning System (ETWS) and a Commercial Mobile Alert Service (CMAS);

the terminal sends a scheduling request;

the terminal starts a transceiver;

the terminal carries out cell search;

and the identification of the terminal.

13. The method according to any one of claims 10 to 12, wherein the information related to the target sequence comprises at least one of:

detecting information of candidate positions of the target sequence;

information of the target sequence.

14. The method of claim 1, wherein the target sequence satisfies any one of:

the target sequence is protocol defined;

15. The method of claim 1, wherein the blind detection of the target sequence on the target set of time-frequency resources comprises:

16. The method of claim 15, wherein at least one of a period, an offset, and a duration of the blind detection is sent by a sending end device to the receiving end device.

17. The method according to claim 1, wherein the number of blind detections by the receiving end device in the target time-frequency resource set does not exceed a blind detection number upper limit; wherein, the upper limit of the blind detection number is defined by a protocol or is notified to the receiving end device by the sending end device.

18. The method of claim 1, further comprising:

and performing downlink synchronization or Radio Resource Management (RRM) measurement through the target sequence.

19. The method of claim 1, wherein the target sequence is repeatedly transmitted through a plurality of beams, or wherein the target sequence is repeatedly transmitted in a time domain.

20. The method of claim 1, wherein the target sequence is quasi co-located with at least one of:

a synchronization signal block SSB;

a channel state information reference signal, CSI-RS;

demodulation reference signals (DMRS).

21. The method of claim 1, wherein the target set of time-frequency resources satisfies any one of:

the target set of time-frequency resources is protocol defined;

22. An information sending method, characterized in that, the method is executed by a sending end device, and the method comprises:

23. The method of claim 22, wherein the target set of time-frequency resources comprises a plurality of candidate positions for the target sequence; the sending of the target sequence to the receiving end device on the target time frequency resource set includes:

and sending the target sequence to the receiving end equipment through at least one of the multiple sets of candidate positions.

24. The method of claim 22, wherein the target set of time-frequency resources satisfies any one of:

the target set of time-frequency resources is protocol defined;

25. The method of claim 23, wherein the target sequence satisfies at least one of:

the time domain is continuous;

the frequency domain is continuous;

time domain discontinuity;

the frequency domain is discontinuous.

26. The method of claim 25, wherein the set of candidate positions of the target sequence corresponds to a contiguous segment of the target set of time-frequency resources when the target sequence satisfies time-domain contiguity and/or frequency-domain contiguity;

or,

27. The method of claim 22, wherein the sending end device is a network side device, and the target sequence includes control information for a terminal; the related information of the target sequence indicates at least one of:

the identification of the terminal and the working mode of the terminal;

28. The method of claim 22, wherein the sender device is a network side device, and wherein the target sequence comprises a sequence-based early indication signal; the related information of the target sequence indicates at least one of:

indexes of a plurality of POs corresponding to the advanced indication signal;

29. The method of claim 23, wherein the sending end device is a network side device, and the target sequence includes control information for a terminal; the related information of the target sequence indicates at least one of:

the terminal enters a connection state;

the terminal initiates random access;

the terminal reads all or part of the system information;

the terminal reads the emergency information;

the terminal sends a scheduling request;

the terminal starts a transceiver;

the terminal carries out cell search;

and the identification of the terminal.

30. The method according to any of claims 27 to 29, wherein the information related to the target sequence comprises at least one of:

detecting information of candidate positions of the target sequence;

information of the target sequence.

31. A blind detection device applied to a receiving end device, the device comprising:

the detection module is used for performing blind detection on a target sequence on the target time-frequency resource set;

32. An information sending apparatus, applied to a sending end device, the apparatus comprising:

33. A communications device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the blind detection method according to any one of claims 1 to 21 or the steps of the information transmission method according to any one of claims 22 to 30.

34. A readable storage medium, on which a program or instructions are stored, which, when executed by a processor, carry out the steps of the blind detection method according to any one of claims 1 to 21, or the steps of the information transmission method according to any one of claims 22 to 30.