CN118215056A

CN118215056A - Signal detection and signal transmission method and device, terminal and transmitting end

Info

Publication number: CN118215056A
Application number: CN202211617167.3A
Authority: CN
Inventors: 吴凯
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2024-06-18
Also published as: WO2024125506A1

Abstract

The application discloses a signal detection and signal transmission method, a device, a terminal and a transmitting end, which belong to the technical field of communication, and the signal detection method of the embodiment of the application comprises the following steps: the terminal detects control signals of at least two formats; wherein first parameters of the control signals of the at least two formats are different, the first parameters including at least one of: a second parameter of the sequence carried by the control signal, the second parameter comprising at least one of: sequence elements, sequence length, number of sequences, and chip rate of sequences; a third parameter of control information carried by the control signal, the third parameter comprising at least one of: the number of bits, the coding rate, the coding scheme, an indication of whether or not to repeat, a cyclic redundancy check, CRC, length, CRC polynomial, and CRC scrambling sequence.

Description

Signal detection and signal transmission method and device, terminal and transmitting end

Technical Field

The application belongs to the technical field of communication, and particularly relates to a signal detection and signal transmission method, a signal detection and signal transmission device, a terminal and a transmitting end.

Background

A low power receiver, i.e., a low power wake-up receiver (low power wake up receiver, LP-WUR). The basic working principle of the LP-WUR is that the receiving end includes a first module and a second module, specifically as shown in fig. 1, where the first module is a main communication module for receiving and transmitting mobile communication data, and the second module is a low-power consumption receiving module (also called a low-power consumption wake-up receiving module) for receiving the wake-up signal. The terminal turns on the low power consumption receiving module to monitor a low power consumption wake-up signal (low power wake up signal, LP-WUS) and turns off the main communication module in the power saving state. When downlink data arrives, the network sends a wake-up signal to the terminal, the terminal monitors the wake-up signal through the low-power consumption receiving module and then triggers the main communication module to turn on from off through a series of judgment, and the low-power consumption receiving module enters the off state from the working state at the moment. The low-power consumption wake-up receiving module can be continuously started or intermittently started, and can receive the low-power consumption wake-up signal when the low-power consumption wake-up receiving module is started.

The LP-WUS has a low power consumption characteristic such that the power consumption level received by the terminal is significantly reduced. But with poor coverage; the network side can increase WUS overhead to promote coverage, but always using larger overhead for WUS transmission also reduces flexibility of network resource scheduling.

Disclosure of Invention

The embodiment of the application provides a signal detection and signal transmission method, a device, a terminal and a sending end, so as to improve the flexibility of network resource scheduling.

In a first aspect, a signal detection method is provided, the method comprising:

The terminal detects control signals of at least two formats;

wherein first parameters of the control signals of the at least two formats are different, the first parameters including at least one of:

a second parameter of the sequence carried by the control signal, the second parameter comprising at least one of: sequence elements, sequence length, number of sequences, and chip rate of sequences;

A third parameter of control information carried by the control signal, the third parameter comprising at least one of: the number of bits, the coding rate, the coding scheme, an indication of whether or not to repeat, a cyclic redundancy check, CRC, length, CRC polynomial, and CRC scrambling sequence.

In a second aspect, a signal detection apparatus is provided, which is applied to a terminal, and includes:

the detection module is used for detecting control signals in at least two formats;

In a third aspect, a signal transmission method is provided, the method comprising:

The transmitting end selects a target format from control signals of at least two formats;

the transmitting end transmits a control signal corresponding to the target format to a terminal according to the target format;

In a fourth aspect, a signal transmission device is provided, which is applied to a transmitting end, and includes:

A selection module for selecting a target format from the control signals of at least two formats;

The sending module is used for sending a control signal corresponding to the target format to the terminal according to the target format;

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to detect control signals in at least two formats;

In a seventh aspect, there is provided a transmitting end comprising a processor and a memory storing a program or instructions executable on the processor, which program or instructions when executed by the processor implement the steps of the method according to the third aspect.

An eighth aspect provides a transmitting end, including a processor and a communication interface, where the processor is configured to select a target format from control signals of at least two formats; the communication interface is used for sending a control signal corresponding to the target format to the terminal according to the target format;

In a ninth aspect, there is provided a signal transmission detection system, comprising: a terminal operable to perform the steps of the method as described in the first aspect, and a sender operable to perform the steps of the method as described in the third aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first or third aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions implementing the steps of the method according to the first or third aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the method according to the first or third aspect.

In the embodiment of the application, the flexibility of network resource scheduling can be improved by detecting the control signals in at least two formats under the condition that the coverage area of the signals is not affected.

Drawings

FIG. 1 is a schematic illustration of the working principle of NR LP-WUR/WUS;

fig. 2 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

FIG. 3 is a schematic diagram of an On-Off-Keying signal distribution;

FIG. 4 is a flow chart of a signal detection method according to an embodiment of the application;

FIG. 5 is one of the format diagrams of the control signal;

FIG. 6 is a second diagram of a format of a control signal;

FIG. 7 is a third diagram of a format of a control signal;

FIG. 8 is one of transmission diagrams of control signals of different formats;

FIG. 9 is a second diagram illustrating transmission of control signals of different formats;

Fig. 10 is a schematic flow chart of a signal transmission method according to an embodiment of the application;

FIG. 11 is a schematic block diagram of a signal detection device according to an embodiment of the present application;

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

FIG. 13 is a schematic block diagram of a signal transmission device according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a transmitting end 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 technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, 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 sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

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

Fig. 2 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 device 12. The terminal 11 may be a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an ultra-Mobile Personal Computer (ultra-Mobile Personal Computer, UMPC), a Mobile internet device (Mobile INTERNET DEVICE, MID), a Mobile terminal, Augmented reality (augmented reality, AR)/Virtual Reality (VR) devices, robots, wearable devices (Wearable Device), vehicle-mounted devices (VUE), pedestrian terminals (PUE), smart home (home devices having a wireless communication function such as refrigerators, televisions, washing machines, furniture, etc.), game machines, personal computers (personal computer, PCs), teller machines or self-service machines, perception service terminals, various sensors, smart cameras, etc., terminal-side devices, the wearable device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may include an access network device or a core network device, where the access network device may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a radio access network element. The access network devices may include base stations, WLAN access points, wiFi nodes, etc., which may be referred to as node bs, evolved node bs (enbs), access points, base transceiver stations (Base Transceiver Station, BTSs), radio base stations, radio transceivers, basic SERVICE SET, BSS, extended SERVICE SET, ESS sets, home node bs, home evolved node bs, transmit and receive points (TRANSMITTING RECEIVING points, TRP), a sensing signal transmitting device, a sensing information receiving device, or some other suitable term in the field, the base station is not limited to a specific technical vocabulary as long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in an NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: a core network node, a core network function, a Mobility management entity (Mobility MANAGEMENT ENTITY, MME), an access Mobility management function (ACCESS AND Mobility Management Function, AMF), a session management function (Session Management Function, SMF), a user plane function (User Plane Function, UPF), a policy control function (Policy Control Function, PCF), policy AND CHARGING Rules Function (PCRF), edge application service discovery Function (Edge Application Server Discovery Function, EASDF), unified data management (Unified DATA MANAGEMENT, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network open functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like.

The following description will first be made of the technology related to the embodiment of the present application.

Low power consumption wake-up signal

In order to reduce the receiving activity of the terminal in the standby state, the Radio Frequency (RF) and baseband (MODEM) modules are actually turned off so as to greatly reduce the power consumption of communication reception, which can be achieved by introducing a near zero power receiver into the receiving module of the terminal. This near "zero" power receiver does not require complex RF module signal detection (e.g., amplification, filtering, quantization, etc.) and MODEM (MODEM) signal processing, but only passive matched filtering and less power consuming signal processing.

On the base station side, a wake-up signal is triggered on demand (on-demand), so that a near zero power receiver can be activated to acquire an activated notification, and a series of processes inside the terminal are triggered, for example, a radio frequency transceiver module, a baseband processing module and the like are opened.

Such wake-up signals are typically relatively simple on-off keying signals (on-off keying) whose time domain pattern is shown in fig. 3, so that the receiver can learn about the wake-up notice by simple energy detection, and possibly sequence detection recognition thereafter. In addition, the main receiver module can be maintained to work at a lower power consumption level while the terminal turns on the low power consumption wake-up receiver to receive the wake-up signal, thereby achieving power consumption saving by receiving the wake-up signal.

The signal detection and signal transmission methods, devices, terminals and transmitting ends provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

As shown in fig. 4, an embodiment of the present application provides a signal detection method, including:

Step 401, a terminal detects control signals of at least two formats;

it should be noted that another interpretation of the control signal may also be referred to as a control channel, i.e. the control signal is mainly used for carrying control information. In one case, the control signal is optionally LP-WUS.

a11, a second parameter of the sequence carried by the control signal;

It should be noted that the sequence may be understood as bits different from the control information; the sequence may be used for synchronization, or information indication; alternatively, the sequence used for synchronization may be regarded as a preamble (preamble) sequence (or simply preamble). The preamble sequence usually occupies a smaller number of bits and does not carry indication information, or the information that can be indicated by the sequence for information indication is limited, so that the overhead of the control signal can be reduced.

Specifically, the second parameter includes at least one of:

A111, sequence elements;

The sequence element may be understood as the specific content of the sequence, i.e. the bit values constituting the sequence.

A112, sequence length;

The sequence length is understood to be the number of bits occupied by the sequence.

A113, number of sequences;

The number of sequences is understood to be the number of different sequences, i.e. how many sequences are included in the control signal.

A114, the chip rate of the sequence;

The chip rate may be understood as the number of levels of On-Off Keying (OOK) or Amplitude Shift Keying (ASK) transmitted per unit time.

A12, a third parameter of control information carried by the control signal;

In the case where a sequence exists in the control signal, the control information is usually located after the sequence.

Wherein the third parameter comprises at least one of:

a121, bit number;

the number of bits may be understood as the length of the control information and the number of bits occupied by the control information.

A122, coding rate;

The encoding rate is used to indicate the proportion of the useful information portion of the data stream after the information has been encoded.

A123, coding mode;

optionally, the encoding mode may include at least one of:

A1231, manchester (Manchester) encoding;

A1232, double-phase space number (FM 0) coding;

a1233, miller (Miller) code;

A1234, synchronous orthogonal (Walsh) coding;

A1235, pulse width coding (Pulse interval encoding, PIE).

A124, an indication of whether or not the process is repeated;

the parameter is used to indicate whether there is repetition of bits in the control information.

A125, cyclic Redundancy Check (CRC) length;

a126, CRC polynomial;

a127, CRC scrambling sequence.

For example, for a control signal that may be received using a low power receiver, possible configurations of the control signal include: a sequence (e.g., preamble), control information, or a combination of a sequence (e.g., preamble) and control information.

Further, in order to enable the terminal to use a low-power receiver to implement receiving a control signal, such a control signal is typically characterized by modulating the signal by means of OOK or ASK, or further by using simple coding means such as Manchester coding, PIE, FM0 coding, miller coding, walsh coding, etc. to form a combination of signal amplitudes. That is, the information is transmitted by using the amplitude information or the combination of the amplitude information, and the terminal only needs to demodulate the control information by judging the amplitude information or the combination of the amplitude information.

To further carry the indication information, the indication information sequence may be further transmitted after the sequence (e.g., preamble), or the indication information sequence may be transmitted uncoded or encoded; the structure of the format of the control signal suitable for the low power consumption receiver is shown in fig. 5 to 7.

One way is to indicate the format of the control signal by a sequence (e.g. preamble), and after detecting only a specific sequence (e.g. preamble), the terminal detects the parameter configuration associated with the sequence (e.g. preamble) to detect the information part of subsequent transmission, and detects the control information carried in the control signal. However, the preamble is usually used for synchronization, and excessive indication information may reduce synchronization accuracy or increase false alarm probability.

In another mode, the sending end indicates different information through different indication information sequences through indication information sequences, the receiving end determines the indicated content in the indicated channel according to the different indication information sequences, and then the terminal needs to perform blind detection in a plurality of sequences to determine the indicated content of the control command. The indication information sequence may be preceded by a preamble sequence, the preamble sequence being used for synchronization, and after the synchronization is completed, the terminal determining the content of the indication information based on the indication information sequence, in which case more different formats can be indicated than indicated by the preamble sequence.

Optionally, in another embodiment of the present application, the terminal detects control signals of at least two formats, including:

The terminal detects a control signal in an ith format;

If the control signal of the ith format is not detected, the terminal detects the control signal of the (i+1) th format;

wherein i is an integer greater than or equal to 1, and i is less than or equal to M-1, M being the maximum number of formats of the terminal detection control signal.

The terminal may not detect the control signal in the i-th format, may not detect the sequence in the control signal in the i-th format, or may not pass the CRC check of the control information.

In this case, it is understood that the terminal detects control signals of M formats at most, and the transmitting end transmits the control signals of M formats, but the transmitting end can select only one format from the M formats at a time to transmit the control signals, the terminal does not know which format of control signals the transmitting end transmits, and can only perform blind detection of the control signals, and when the terminal detects a control signal of one format, the terminal stops detection, and when the terminal does not detect a control signal of the previous format, the terminal continues detection of a control signal of the next format.

It should be further noted that the transmitting end may be a network side device, other terminals, a repeater (Relay), a Relay device (Relay), and transmit a receiving point (Transmission and Reception Point, TRP).

Optionally, the length of the duration of the control signals of different formats is a protocol convention or a network side device configuration.

Optionally, the modulation mode of the control signal includes at least one of the following:

B11、OOK；

B12、ASK；

B13 Frequency shift keying (Frequency-SHIFT KEYING, FSK).

The control signal is encoded in a manner consistent with the control information carried in the control signal, and the control signal is encoded in a manner including at least one of the above-mentioned a1231 to a 1235.

Optionally, in another embodiment of the present application, the duration of the control signal in the different format is X time units, and X is an integer greater than or equal to 1;

the time unit comprises at least one of the following:

B21, at least one orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol;

In this case, the time unit is granularity of OFDM symbols.

B22, at least one slot (slot);

In this case, the time units are slot-granularity.

B23, at least one millisecond;

in this case, the time units are in milliseconds granularity.

Optionally, in another embodiment of the present application, starting moments of control signals in different formats are the same; it is understood that control signals of all formats are transmitted from the same time regardless of which format the transmitting end transmits the control signals.

Alternatively, in another embodiment of the present application, the sequence transmitted at the start position of each time unit in the duration of the control signal is the same or different.

Optionally, in another embodiment of the present application, the sequence is used to indicate a number of the time unit; that is, the generation of the signal sequence is related to the time cell number.

Optionally, in another embodiment of the present application, an implementation manner of detecting control signals of at least two formats by the terminal includes:

the terminal detects the format of at least two control signals in a first time window;

wherein the first time window is a protocol contract or a network side configuration.

Alternatively, the first time window may be understood as a detection window for the control signal.

And if the terminal detects the first sequence, detecting a control signal in the duration corresponding to the first sequence.

This case can be understood as including sequences and payload (payload) in the control signal; the terminal detects the sequence first, and if the related sequence is detected, further detects the load corresponding to the sequence.

Optionally, in another embodiment of the present application, the control information carried by the control signal includes at least one of:

c101, monitoring an indication of paging signals;

c102, an indication of whether to initiate a Random access channel (Random ACCESS CHANNEL, RACH) procedure;

c103, tracking an indication that the reference signal (TRACKING REFERNECE SIGNAL, TRS) is available;

c104, monitoring the indication of paging advance;

C105, paging grouping information updating indication;

The update indication is used to indicate a subgroup (subgroup) identifier (e.g., subgroup ID), a paging cycle (PAGING CYCLE) update of the terminal, and the like.

C106, paging type indication;

The paging types include: paging core network or paging radio access network;

c107, tracking area update indication;

C108, system information update indication;

c109, switching indication of listening parameters of physical downlink control channel (Physical Downlink Control Channel, PDCCH);

it should be noted that, the listening parameter includes at least one of the following:

C1091, whether to monitor PDCCH;

C1092, the period of PDCCH monitoring;

c1093, a monitored search space;

and C1094, monitoring the search space group.

C110, indication of handover of discontinuous reception (Discontinuous Reception, DRX) parameters;

The switching indication is used for indicating at least one of the following:

c1101, whether to open an associated DRX duration timer (onduration timer);

C1102, updating the starting position of the DRX duration time;

C1103, updating the DRX cycle;

c1104, updating the DRX duration length;

C1105, DRX inactivity timer length.

C111, receiving an indication of a reference signal;

c112, monitoring indication of the higher layer configuration channel or higher layer configuration signaling;

c113, an indication of whether to initiate an RRC connection procedure;

C114, signal source indication;

The signal source indication is used for indicating at least one of the following:

C1141, identification of a cell;

c1142, sending a receiving point identifier;

C1143 whether from the terminal;

C1144, identification of the terminal;

C1145, whether from relay;

C1146, identification of the relay.

The following illustrates the distinction of the low power consumption control signals with different formats and the blind detection mode of the terminal according to the embodiment of the present application.

For a method of using different preamble sequences or indicating information sequences to indicate a format, it is possible to consider using different sequences of the same length, different lengths of the same sequence, or different sequences and different lengths to indicate a format of a control signal.

The structure of the control signals described above for the different formats may be different, i.e. may consist of different parts. Different channel formats may also differ in terms of the following parameters:

1. a second parameter of the preamble sequence, the second parameter comprising at least one of a specific sequence element, a sequence length, and a chip rate of the sequence.

Specific examples are as follows:

a) Sequence 1 corresponds to format 1, sequence 2 corresponds to format 2, … …;

b) Sequence length 1 corresponds to format 1, sequence length 2 corresponds to format 2, … …;

c) Chip rate 1 for the sequence portion corresponds to format 1, chip rate 2 for the sequence portion corresponds to format 2, … …;

2. a third parameter of the carried control information, the third parameter comprising at least one of:

a) A number of bits;

b) A coding mode, a coding rate, an indication of whether to repeat, a CRC length, at least one of a CRC polynomial and a CRC scrambling sequence;

it should be noted that this parameter is applicable to the case where the control information is transmitted in a coded manner.

C) Parameters of the sequence, the parameters of the sequence comprising: at least one of sequence element, sequence length and chip rate of the sequence.

It should be noted that this parameter is applicable to the case where the control information is transmitted in a bit sequence.

Further, for different formats, the parameters of the control signal carrying the portion of the information bit may be a combination of at least one of the following formats:

a) Format a uses: coding mode A, coding rate A, repetition mode A, CRC polynomial A, CRC length A, CRC scrambling sequence A, chip rate A;

b) Format B uses: coding mode B, coding rate B, repetition mode B, CRC polynomial B, CRC length B, CRC scrambling sequence B, chip rate B;

c) Format C uses: sequence C, sequence length C, chip rate of sequence C;

d) Format D uses: sequence D, sequence length D, chip rate of sequence D.

Based on the format design described above, different formats may correspond to different structures and/or parameters (e.g., length) of the control signal, and the duration of the control signal for different formats may be different.

Optionally, when the different formats correspond to parameters of different preamble sequences, the terminal detects the sequences according to the different parameters (blind detection), determines the format of the control signal according to the detected sequences, determines parameters of other parts (may include other sequences or payload parts) at the same time, and detects according to the corresponding parameters.

Optionally, the different formats correspond to the same preamble sequence (or sequence set), and the difference between the different formats is the format of the portion carrying the control information, where the terminal needs to perform blind detection on the portion carrying the control information by using the different formats. One possible multi-format is:

format 1: duration 1 slot;

format 2: duration 2 slots;

format 3: duration 3 slots.

Because of the sequence length, the number of bits of the part carrying the control information, the coding mode, the chip rate and other parameters are different, so that the slot numbers of different formats are different. The terminal firstly detects the format 1, and if the format 1 is detected, the detection of other formats can be stopped; if the format 1 is not detected, continuing to receive a second slot, and detecting the format 2; if format2 is not detected, then the 3 rd slot is continuously received to detect format 3.

Three different formats of control signals may be detected in a time window, the start time, length of which may be protocol-agreed (i.e. predefined) or network-side device-configured.

Taking the control signal including the preamble sequence as an example, a specific detection manner and flow are shown in fig. 8.

Alternatively, if a format is not detected, it may be that the sequence in the format is not detected, or that the CRC of the control information is not checked.

Or further, for the format of the control signal occupying different time units, the signal sequence may be transmitted at the start position of each time unit. As shown in fig. 9, each slot is a time unit, and for format 2 and format 3, a signal sequence starts to be transmitted at the start position of the second slot; for format 3, the transmission of the signal sequence starts at the third slot. In each slot, the signal sequence in each slot may be the same or different, except for the sequence portion, other portions, bits used to transmit control information, which may be encoded bits. If the terminal detects the signal sequence in the second slot, it determines that the received signal format is not format 1, then the terminal detects format 2, and further if the terminal detects the signal sequence in slot 3, it determines that the received signal format is not format 1 and format 2, and is format 3. The introduction of these signal sequences may allow the terminal to obtain more information in the form of control signals.

In the above manner, the format of the control signal and the number of occupied time resources are correlated. The difference in the reception length is detected using the corresponding format.

It should be noted that the specific explanation of the different CRC parameters is as follows:

The CRC is scrambled using a predefined or configured scrambling sequence, for example using <0, … 0>, <0, …,1> indicating a control command distinguishing between different formats.

Or alternatively

Distinguishing using different CRC generator polynomials, e.g., a CRC generator polynomial of x ¹⁵+x¹¹+x¹⁰+x⁷+x⁴+x² +x+1 for a control command of format 1; the CRC generation polynomial for the control command of format 2 is x ¹⁵+x¹³+x⁹+x⁸+x⁶+x³ +x+1; both CRCs are length 16bits CRC. CRCs of different lengths may also be corresponding in different formats, for example: the CRC of the control command of format 1 has a generator polynomial of x ¹⁵+x¹¹+x¹⁰+x⁷+x⁴+x² +x+1; the CRC generation polynomial for the control command of format 2 is x ⁷+x⁶+x³ +x+1; the latter is a CRC of length 8 bits.

It should be noted that, the terminal blindly detects different formats of the control signal, so that the transmitting end can flexibly select different formats to transmit the control signal, and can better select between resource overhead and coverage.

As shown in fig. 10, an embodiment of the present application provides a signal transmission method, including:

step 1001, a transmitting end selects a target format from control signals of at least two formats;

step 1002, the transmitting end transmits a control signal corresponding to the target format to a terminal according to the target format;

The transmitting end may be a network side device, other terminals, repeater, relay, TRP.

Optionally, the method further comprises:

The transmitting end transmits the duration of the control signals of at least two formats to the terminal.

on-off keying OOK, amplitude shift keying ASK and frequency shift keying FSK;

And/or

The coding mode of the control signal comprises at least one of the following:

Manchester encoding;

Double alternate space coding;

Miller coding;

Synchronous orthogonal coding;

pulse width encoded PIE.

Optionally, the duration of the control signals of different formats is X time units, X being an integer greater than or equal to 1;

the time unit comprises at least one of the following:

At least one orthogonal frequency division multiplexing, OFDM, symbol;

At least one time slot;

At least one millisecond.

Optionally, the starting moments of the control signals of different formats are the same.

Optionally, the sequence transmitted at the start position of each time unit in the duration of the control signal is the same or different.

Optionally, the sequence is used to indicate the number of the time cell.

Optionally, the control information carried by the control signal includes at least one of:

an indication of whether to monitor for paging signals;

An indication of whether to initiate a random access channel, RACH, procedure;

tracking an indication that the reference signal TRS is available;

Whether to monitor an indication of paging advance;

Paging packet information update indication;

A paging type indication, the paging type comprising: paging core network or paging radio access network;

A tracking area update indication;

a system information update indication;

a switching indication of monitoring parameters of a Physical Downlink Control Channel (PDCCH), wherein the monitoring parameters comprise at least one of the following: whether to monitor PDCCH, the period of PDCCH monitoring, the monitored search space and the monitored search space group;

A handover indication of a discontinuous reception, DRX, parameter, the handover indication being for indicating at least one of: whether to open an associated DRX duration timer, update a DRX duration start position, update a DRX cycle, update a DRX duration length, DRX inactivity timer length;

Receiving an indication of a reference signal;

monitoring indication of a higher layer configuration channel or higher layer configuration signaling;

An indication of whether to initiate an RRC connection procedure;

A signal source indication for indicating at least one of: cell identity, transmission reception point identity, identity from terminal, identity of terminal, identity from relay and relay.

It should be noted that, in the above embodiments, all descriptions about the transmitting end side are applicable to the embodiments of the signal transmission method applied to the transmitting end side, and the same technical effects can be achieved, which are not repeated herein.

According to the signal detection method provided by the embodiment of the application, the execution main body can be a signal detection device. In the embodiment of the application, a signal detection device is taken as an example to execute a signal detection method by using the signal detection device, and the signal detection device provided by the embodiment of the application is described.

As shown in fig. 11, a signal detection apparatus 1100 according to an embodiment of the present application is applied to a terminal, and includes:

A detection module 1101 that detects control signals of at least two formats;

Optionally, the detection module 1101 includes:

a first detecting unit for detecting a control signal of an ith format;

a second detection unit, configured to detect a control signal in an i+1th format if the control signal in the i-th format is not detected;

on-off keying OOK, amplitude shift keying ASK and frequency shift keying FSK;

And/or

The coding mode of the control signal comprises at least one of the following:

Manchester encoding;

Double alternate space coding;

Miller coding;

Synchronous orthogonal coding;

pulse width encoded PIE.

the time unit comprises at least one of the following:

At least one orthogonal frequency division multiplexing, OFDM, symbol;

At least one time slot;

At least one millisecond.

Optionally, the sequence is used to indicate the number of the time cell.

Optionally, the detection module is configured to:

Performing format detection of at least two control signals in a first time window;

Optionally, the detection module is configured to:

if a first sequence is detected, a control signal is detected for a duration corresponding to the first sequence.

an indication of whether to monitor for paging signals;

An indication of whether to initiate a random access channel, RACH, procedure;

tracking an indication that the reference signal TRS is available;

Whether to monitor an indication of paging advance;

Paging packet information update indication;

A tracking area update indication;

a system information update indication;

Receiving an indication of a reference signal;

An indication of whether to initiate an RRC connection procedure;

It should be noted that the embodiment of the apparatus corresponds to the method, and all implementation manners in the embodiment of the method are applicable to the embodiment of the apparatus, so that the same technical effects can be achieved.

The signal detection device in the embodiment of the application can be an electronic device, for example, an electronic device with an operating system, or can be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, the terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the present application are not limited in detail.

The signal detection device provided by the embodiment of the application can realize each process realized by the method embodiment of fig. 4 and achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for detecting control signals in at least two formats;

Optionally, the processor is configured to:

detecting a control signal of an ith format;

If the control signal of the ith format is not detected, detecting the control signal of the (i+1) th format;

on-off keying OOK, amplitude shift keying ASK and frequency shift keying FSK;

And/or

The coding mode of the control signal comprises at least one of the following:

Manchester encoding;

Double alternate space coding;

Miller coding;

Synchronous orthogonal coding;

pulse width encoded PIE.

the time unit comprises at least one of the following:

At least one orthogonal frequency division multiplexing, OFDM, symbol;

At least one time slot;

At least one millisecond.

Optionally, the sequence is used to indicate the number of the time cell.

Optionally, the processor is configured to:

an indication of whether to monitor for paging signals;

An indication of whether to initiate a random access channel, RACH, procedure;

tracking an indication that the reference signal TRS is available;

Whether to monitor an indication of paging advance;

Paging packet information update indication;

A tracking area update indication;

a system information update indication;

Receiving an indication of a reference signal;

An indication of whether to initiate an RRC connection procedure;

The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 12 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1200 includes, but is not limited to: at least some of the components of the radio frequency unit 1201, the network module 1202, the audio output unit 1203, the input unit 1204, the sensor 1205, the display unit 1206, the user input unit 1207, the interface unit 1208, the memory 1209, and the processor 1210.

Those skilled in the art will appreciate that the terminal 1200 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically connected to the processor 1210 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 12 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1204 may include a graphics processing unit (Graphics Processing Unit, GPU) 12041 and a microphone 12042, the graphics processor 12041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1207 includes at least one of a touch panel 12071 and other input devices 12072. The touch panel 12071 is also called a touch screen. The touch panel 12071 may include two parts, a touch detection device and a touch controller. Other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from the access network device, the radio frequency unit 1201 may transmit the downlink data to the processor 1210 for processing; in addition, the radio frequency unit 1201 may send uplink data to the network side device. Typically, the radio frequency unit 1201 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1209 may be used to store software programs or instructions as well as various data. The memory 1209 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1209 may include volatile memory or nonvolatile memory, or the memory 1209 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDRSDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), and Direct random access memory (DRRAM). Memory 1209 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 1210 may include one or more processing units; optionally, processor 1210 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 1210.

Wherein the processor 1210 is configured to:

detecting control signals of at least two formats;

Optionally, the processor 1210 is configured to:

detecting a control signal of an ith format;

on-off keying OOK, amplitude shift keying ASK and frequency shift keying FSK;

And/or

The coding mode of the control signal comprises at least one of the following:

Manchester encoding;

Double alternate space coding;

Miller coding;

Synchronous orthogonal coding;

pulse width encoded PIE.

the time unit comprises at least one of the following:

At least one orthogonal frequency division multiplexing, OFDM, symbol;

At least one time slot;

At least one millisecond.

Optionally, the sequence is used to indicate the number of the time cell.

Optionally, the processor 1210 is configured to:

an indication of whether to monitor for paging signals;

An indication of whether to initiate a random access channel, RACH, procedure;

tracking an indication that the reference signal TRS is available;

Whether to monitor an indication of paging advance;

Paging packet information update indication;

A tracking area update indication;

a system information update indication;

Receiving an indication of a reference signal;

An indication of whether to initiate an RRC connection procedure;

Preferably, the embodiment of the present application further provides a terminal, which includes a processor, a memory, and a program or an instruction stored in the memory and capable of running on the processor, where the program or the instruction implements each process of the signal detection method embodiment described above when executed by the processor, and the process can achieve the same technical effect, and in order to avoid repetition, a description is omitted herein.

The embodiment of the application also provides a readable storage medium, and the computer readable storage medium stores a program or an instruction, which when executed by a processor, implements each process of the signal detection method embodiment described above, and can achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

The computer readable storage medium is, for example, a Read-Only Memory (ROM), a random access Memory (Random Access Memory RAM), a magnetic disk or an optical disk.

As shown in fig. 13, an embodiment of the present application further provides a signal transmission apparatus 1300, applied to a transmitting end, including:

a selection module 1301, configured to select a target format from control signals of at least two formats;

A first sending module 1302, configured to send, to a terminal, a control signal corresponding to the target format according to the target format;

Optionally, the apparatus further comprises:

and the second sending module is used for sending the duration time length of the control signals in at least two formats to the terminal.

on-off keying OOK, amplitude shift keying ASK and frequency shift keying FSK;

And/or

The coding mode of the control signal comprises at least one of the following:

Manchester encoding;

Double alternate space coding;

Miller coding;

Synchronous orthogonal coding;

pulse width encoded PIE.

the time unit comprises at least one of the following:

At least one orthogonal frequency division multiplexing, OFDM, symbol;

At least one time slot;

At least one millisecond.

Optionally, the sequence is used to indicate the number of the time cell.

an indication of whether to monitor for paging signals;

An indication of whether to initiate a random access channel, RACH, procedure;

tracking an indication that the reference signal TRS is available;

Whether to monitor an indication of paging advance;

Paging packet information update indication;

A tracking area update indication;

a system information update indication;

Receiving an indication of a reference signal;

An indication of whether to initiate an RRC connection procedure;

It should be noted that, the embodiment of the apparatus is an apparatus corresponding to the above method, and all implementation manners in the embodiment of the method are applicable to the embodiment of the apparatus, so that the same technical effects can be achieved, which is not described herein again.

The embodiment of the application also provides a transmitting end, which comprises a processor and a communication interface, wherein the processor is used for selecting a target format from control signals of at least two formats; the communication interface is used for sending a control signal corresponding to the target format to the terminal according to the target format;

Optionally, the communication interface is further configured to:

the length of the duration of the control signal of at least two formats is transmitted to the terminal.

on-off keying OOK, amplitude shift keying ASK and frequency shift keying FSK;

And/or

The coding mode of the control signal comprises at least one of the following:

Manchester encoding;

Double alternate space coding;

Miller coding;

Synchronous orthogonal coding;

pulse width encoded PIE.

the time unit comprises at least one of the following:

At least one orthogonal frequency division multiplexing, OFDM, symbol;

At least one time slot;

At least one millisecond.

Optionally, the sequence is used to indicate the number of the time cell.

an indication of whether to monitor for paging signals;

An indication of whether to initiate a random access channel, RACH, procedure;

tracking an indication that the reference signal TRS is available;

Whether to monitor an indication of paging advance;

Paging packet information update indication;

A tracking area update indication;

a system information update indication;

Receiving an indication of a reference signal;

An indication of whether to initiate an RRC connection procedure;

Preferably, the embodiment of the present application further provides a transmitting end, which includes a processor, a memory, and a program or an instruction stored in the memory and capable of running on the processor, where the program or the instruction realizes each process of the signal transmission method embodiment described above when being executed by the processor, and the process can achieve the same technical effect, and in order to avoid repetition, a description is omitted herein.

Specifically, the embodiment of the application also provides a transmitting end. As shown in fig. 14, the transmitting end 1400 includes: an antenna 1401, radio frequency means 1402, baseband means 1403, a processor 1404 and a memory 1405. An antenna 1401 is coupled to a radio 1402. In the uplink direction, the radio frequency device 1402 receives information via the antenna 1401 and transmits the received information to the baseband device 1403 for processing. In the downlink direction, the baseband device 1403 processes information to be transmitted, and transmits the processed information to the radio frequency device 1402, and the radio frequency device 1402 processes the received information and transmits the processed information through the antenna 1401.

The method performed by the access network device in the above embodiments may be implemented in a baseband arrangement 1403, the baseband arrangement 1403 comprising a baseband processor.

The baseband apparatus 1403 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 14, where one chip, for example, a baseband processor, is connected to the memory 1405 through a bus interface, so as to invoke a program in the memory 1405 to perform the network device operation shown in the above method embodiment.

The access network device may also include a network interface 1406, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the transmitting end 1400 of the embodiment of the present application further includes: instructions or programs stored in the memory 1405 and executable on the processor 1404, the processor 1404 invokes the instructions or programs in the memory 1405 to perform the methods performed by the modules shown in fig. 13 to achieve the same technical effects, and are not repeated here.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements the processes of the signal transmission method embodiment described above, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the access network device described in the foregoing embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

Optionally, as shown in fig. 15, the embodiment of the present application further provides a communication device 1500, which includes a processor 1501 and a memory 1502, where the memory 1502 stores a program or instructions that can be executed on the processor 1501, for example, when the communication device 1500 is a terminal, the program or instructions implement the steps of the above-described information acquisition method embodiment when executed by the processor 1501, and achieve the same technical effects. When the communication device 1500 is a transmitting end, the program or the instructions realize the steps of the signal transmission method embodiment when executed by the processor 1501, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or instructions, the processes of the signal detection method or the signal transmission method embodiment can be realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.

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

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above signal detection method or the signal transmission method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated herein.

The embodiment of the application also provides a signal transmission detection system, which comprises: the terminal can be used for executing the steps of the signal detection method, and the transmitting terminal can be used for executing the steps of the signal transmission method.

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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, 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.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A signal detection method, comprising:

The terminal detects control signals of at least two formats;

2. The method of claim 1, wherein the terminal detects control signals of at least two formats, comprising:

The terminal detects a control signal in an ith format;

3. The method of claim 1, wherein the length of the duration of the control signals of different formats is a protocol convention or a network side device configuration.

4. The method of claim 1, wherein the modulation scheme of the control signal comprises at least one of:

on-off keying OOK, amplitude shift keying ASK and frequency shift keying FSK;

And/or

The coding mode of the control signal comprises at least one of the following:

Manchester encoding;

Double alternate space coding;

Miller coding;

Synchronous orthogonal coding;

pulse width encoded PIE.

5. The method according to claim 1, wherein the duration of the control signals of different formats is X time units long, X being an integer greater than or equal to 1;

the time unit comprises at least one of the following:

At least one orthogonal frequency division multiplexing, OFDM, symbol;

At least one time slot;

At least one millisecond.

6. The method of claim 1, wherein the starting times of the control signals of different formats are the same.

7. The method of claim 1, wherein the sequence transmitted at the start position of each time unit in the duration of the control signal is the same or different.

8. The method of claim 7, wherein the sequence is used to indicate a number of time units.

9. The method of claim 1, wherein the terminal detects control signals of at least two formats, comprising:

10. The method of claim 1, wherein the terminal detects control signals of at least two formats, comprising:

11. The method of claim 1, wherein the control information carried by the control signal comprises at least one of:

an indication of whether to monitor for paging signals;

An indication of whether to initiate a random access channel, RACH, procedure;

tracking an indication that the reference signal TRS is available;

Whether to monitor an indication of paging advance;

Paging packet information update indication;

A tracking area update indication;

a system information update indication;

Receiving an indication of a reference signal;

An indication of whether to initiate an RRC connection procedure;

12. A method of signal transmission, comprising:

13. The method as recited in claim 12, further comprising:

14. The method of claim 12, wherein the modulation scheme of the control signal comprises at least one of:

on-off keying OOK, amplitude shift keying ASK and frequency shift keying FSK;

And/or

The coding mode of the control signal comprises at least one of the following:

Manchester encoding;

Double alternate space coding;

Miller coding;

Synchronous orthogonal coding;

pulse width encoded PIE.

15. The method of claim 12, wherein the duration of the control signals of different formats is X time units long, X being an integer greater than or equal to 1;

the time unit comprises at least one of the following:

At least one orthogonal frequency division multiplexing, OFDM, symbol;

At least one time slot;

At least one millisecond.

16. The method of claim 12, wherein the starting times of the control signals of different formats are the same.

17. The method of claim 12, wherein the sequence transmitted at the start position of each time unit in the duration of the control signal is the same or different.

18. The method of claim 17, wherein the sequence is used to indicate a number of time units.

19. The method of claim 12, wherein the control information carried by the control signal comprises at least one of:

an indication of whether to monitor for paging signals;

An indication of whether to initiate a random access channel, RACH, procedure;

tracking an indication that the reference signal TRS is available;

Whether to monitor an indication of paging advance;

Paging packet information update indication;

A tracking area update indication;

a system information update indication;

Receiving an indication of a reference signal;

An indication of whether to initiate an RRC connection procedure;

20. A signal detection device applied to a terminal, comprising:

21. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the signal detection method of any one of claims 1 to 11.

22. A signal transmission device applied to a transmitting end, comprising:

23. A transmitting terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the signal transmission method of any one of claims 12 to 19.

24. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the signal detection method according to any one of claims 1-11 or the steps of the signal transmission method according to any one of claims 12 to 19.