CN117750485A

CN117750485A - Method, terminal and network side equipment for acquiring synchronous information

Info

Publication number: CN117750485A
Application number: CN202211123671.8A
Authority: CN
Inventors: 李东儒; 曲鑫
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2024-03-22
Also published as: WO2024056018A1

Abstract

The application discloses a method for acquiring synchronous information, a terminal and network side equipment, which belong to the field of wireless communication, and the method for acquiring synchronous information in the embodiment of the application comprises the following steps: the terminal receives a first signal sent by network side equipment; and the terminal acquires time synchronization information and/or frequency synchronization information according to the reception of the first signal.

Description

Method, terminal and network side equipment for acquiring synchronous information

Technical Field

The application belongs to the technical field of wireless communication, and particularly relates to a method for acquiring synchronous information, a terminal and network side equipment.

Background

In synchronous systems, the implementation of time-frequency synchronization will be relevant to whether the information can be received and demodulated correctly. Therefore, how to acquire synchronization information and further achieve synchronization is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a method for acquiring synchronous information, a terminal and network side equipment, which can solve the problem of how to acquire the synchronous information by the terminal.

In a first aspect, a method for acquiring synchronization information is provided, including: the terminal receives a first signal sent by network side equipment; and the terminal acquires time synchronization information and/or frequency synchronization information according to the reception of the first signal.

In a second aspect, there is provided an apparatus for acquiring synchronization information, including: the receiving module is used for receiving a first signal sent by the network side equipment; and the acquisition module is used for acquiring time synchronization information and/or frequency synchronization information according to the reception of the first signal.

In a third aspect, a method for acquiring synchronization information is provided, including: the network side equipment sends a first signal to a terminal, wherein the first signal is used for the terminal to acquire time synchronization information and/or frequency synchronization information.

In a fourth aspect, there is provided an apparatus for acquiring synchronization information, including: and the sending module is used for sending a first signal to the terminal, wherein the first signal is used for the terminal to acquire time synchronization information and/or frequency synchronization information.

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 implement the steps of the method according to the first aspect, and the communication interface is configured to communicate with an external device.

In a seventh aspect, a network side device is provided, 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 according to the third aspect.

In an eighth aspect, a network side device is provided, which includes a processor and a communication interface, where the processor is configured to implement the steps of the method according to the third aspect, and the communication interface is configured to communicate with an external device.

In a ninth aspect, there is provided a synchronization information acquisition system, including: a terminal operable to perform the steps of the method as described in the first aspect, and a network side device 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, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect.

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

In the embodiment of the application, the terminal receives the first signal sent by the network side equipment, and the time synchronization information and/or the frequency synchronization information are acquired according to the reception of the first signal, so that the synchronization can be realized according to the acquired time synchronization information and/or the frequency synchronization information, the correction of time offset and/or frequency offset is realized, and the reliability of communication between the terminal and the network side equipment is improved.

Drawings

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

fig. 2a shows a schematic structural diagram of a receiving end in an embodiment of the present application;

FIG. 2b shows a schematic diagram of a wake-up signal in an embodiment of the present application;

fig. 2c shows a schematic frame structure of a beacon signal in an embodiment of the present application;

fig. 3 is a flow chart illustrating a method for acquiring synchronization information in an embodiment of the present application;

Fig. 4 shows a schematic structural diagram of a beacon signal in an embodiment of the present application;

fig. 5 is a flowchart illustrating another method for acquiring synchronization information in an embodiment of the present application;

fig. 6 shows a schematic diagram of a periodic beacon signal in an embodiment of the present application;

fig. 7 shows a schematic diagram of a beacon signal set in an embodiment of the present application;

fig. 8 shows a schematic diagram of another beacon signal set in an embodiment of the present application;

fig. 9 is a schematic structural diagram of an apparatus for acquiring synchronization information in an embodiment of the present application;

fig. 10 is a schematic structural diagram of another synchronization information acquiring apparatus in the embodiment of the present application;

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

fig. 12 shows a schematic hardware structure of a terminal according to an embodiment of the present application;

fig. 13 shows a schematic hardware structure of a network side device according to an embodiment of the present application.

Detailed Description

Technical solutions in 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 obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects 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 terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may 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 is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems may also be used for 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 present 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 air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable 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 device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and 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.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device and/or a core network device, wherein the access network device 12 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. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmitting/receiving point (TransmittingReceivingPoint, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiments 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.

Related terms related to the embodiments of the present application are described below.

1. Low power consumption receiver

A low power receiver, i.e. a low power wake-up receiver (low power wake up radio, 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. 2a, 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 starts a low power consumption receiving module to monitor the LP-WUS and closes the main communication module in the energy 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.

2. 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 signal processing, but relies on 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) of which the time domain pattern is shown in fig. 2b, so that the receiver can learn about the wake-up notice by simple energy detection, and possibly sequence detection recognition afterwards. 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.

3. Beacon (beacon) signal

The beacon signal is a periodically transmitted signal for delivering time information. The receiving end can acquire the time synchronization information by receiving the beacon signal. In some embodiments, mobility measurements or channel measurements, etc. may also be made by receiving a beacon signal.

In one implementation, the beacon signal is transmitted using a specific Medium Access Control (MAC) frame (frame) with the structure shown in fig. 2 c. WUR beacon MAC frame type-dependent control (Type dependent control) carries information from the 5 th bit to the 16 th bit in the TSF clock 64bit of the AP, and after receiving the corresponding information bit, the user updates the TSF clock local to the user according to the time update criterion defined by 802.11ba, thereby achieving the purpose of synchronization with the AP. The transmission period of WUR beacon and the offset of the transmission start position are indicated by an operation element (operation element) transmitted by the AP, the period being the minimum number of TSF time units between beacon transmissions, and the start position being the number of TSF time units offset from TSF 0. When a Carrier Sense Multiple Access (CSMA) delay (deferers) occurs, WUR beacon delays transmission in the current period, but is still transmitted in a position determined by the transmission period and the transmission start position of WUR beacon in the subsequent period.

The following describes in detail, with reference to the attached drawings, the acquisition schemes of the synchronization information provided by the embodiments of the present application through some embodiments and application scenarios thereof.

Fig. 3 shows a flowchart of a method for acquiring synchronization information in an embodiment of the present application, and the method 300 may be performed by a terminal. In other words, the method may be performed by software or hardware installed on the terminal. As shown in fig. 3, the method may include the following steps.

S310, the terminal receives a first signal sent by the network side equipment.

In the embodiment of the application, the first signal may be used for time and/or frequency synchronization between the terminal and the network side device.

In one possible implementation manner of the embodiment of the present application, the first signal may be a beacon (beacon) signal, and the network side device may periodically transmit time information through the beacon signal, that is, the beacon signal is a signal that is periodically transmitted and used to transmit time information. The receiving end can acquire time synchronization information by receiving the beacon signal. In some embodiments, the beacon signal may also be used for mobility measurement or channel measurement functions, and is not limited herein.

Alternatively, in one embodiment, referring to fig. 4, the beacon signal structure may comprise one of the following:

Structure 1: sequentially comprises a first-level preamble and a second-level preamble;

structure 2: sequentially comprises a primary preamble, a secondary preamble and a data part;

structure 3: sequentially comprising a first-level preamble;

structure 4: sequentially comprises a primary preamble and a data part.

In another possible implementation manner of the embodiment of the present application, the first signal may also be a wake-up signal, for example, a low power consumption wake-up signal.

In one possible implementation, the first signal may carry second indication information, where the second indication information includes at least one of:

(1) Index information of the first time unit.

Alternatively, the first time unit may be the first time unit in which the first signal is received. That is, the index information of the first time unit is the index information of the first time unit where the first signal is received.

Optionally, the index information of the first time unit may be index information of the first time unit in the first signal listening period. That is, the index of the first time unit starts from 0 in each first signal listening period. For example, the length of the first signal monitoring period is 4 first time units, and index information of each first time unit is 0, 1, 2 and 3 in sequence.

In another embodiment, the first time unit may be encoded in a continuous manner spanning multiple first signal listening periods.

(2) First indication information; the first indication information is used for indicating that the first signal is located in a first half or a second half of a second time unit. I.e. the first indication information is used to indicate that the first signal is located within the first half of the second time unit or the first indication information is used to indicate that the first signal is located within the second half of the second time unit.

(3) Index information of listening opportunities of the first signal.

Optionally, the index information of the listening opportunity of the first signal is the index information of the listening opportunity of the first signal received.

Alternatively, the index information of the listening opportunity of the first signal may be index information of the first signal listening opportunity in one first signal listening set. For example, a first signal listening set may include a plurality of first signal listening opportunities, which may be numbered. For example, assuming that one first signal listening set includes 4 first signal listening opportunities, index information of each first signal listening opportunity may be 0, 1, 2, 3 in order.

In the embodiment of the present application, the time units may include at least one time unit, and each time unit has a different time granularity. Wherein the granularity of each time unit comprises at least one of the following: amplitude-shift Keying (ASK) symbols, system frames, subframes, slots, orthogonal frequency division multiplexing (Orthogonal frequency division multiplex, OFDM) symbols.

Alternatively, the first time unit and the second time unit may be any one of ASK symbol, system frame, subframe, slot, and OFDM symbol, respectively. The first time unit and the second time unit may be the same. Alternatively, the first time unit is different from the second time unit. For example, the first time unit and the second time unit are both system frames; the index information of the first time unit in the second index information may be index information of a system frame in which the first signal is located, where the first index information is used to indicate whether the first signal is in a first half of the system frame or a second half of the system frame.

In one possible implementation, the reception opportunity of the first signal may be within one or more consecutive time units. It is understood that the length of time the first signal occupies is one or more consecutive time units.

In this embodiment, the starting position of the first signal is aligned with the starting position of the time unit by default.

For example, the first signal includes a plurality of components, and the reception of the plurality of components is continuous, thereby forming one first signal. The plurality of components may be understood as a plurality of components in the first signal structure. For example, the structure 1 of the beacon signal includes a primary preamble and a secondary preamble in this order. I.e. the beacon signal comprises two components.

Alternatively, the terminal may assume or expect the various components of the first signal to have the same energy (Energy Per Resource Element, EPRE).

In one possible implementation, the second indication information may be carried by at least one of:

(1) A first sequence of the first signal; alternatively, the first sequence may be a preamble sequence or a synchronization sequence, which is agreed upon by the network side configuration or protocol.

(2) A data field of the first signal. Optionally, the data field carries data information, etc.

Through the possible implementation manner, the terminal may obtain the second indication information by detecting the first sequence of the first signal and/or the data field of the first signal.

And S312, the terminal acquires time synchronization information and/or frequency synchronization information according to the reception of the first signal.

It can be appreciated that the terminal performs time synchronization and/or frequency synchronization by acquiring time synchronization information and/or frequency synchronization information. Optionally, the time synchronization comprises: and correcting the time offset by the terminal according to the acquired time synchronization information, determining the boundary of the downlink time unit, and the like. Optionally, the frequency synchronization includes: and the terminal corrects the frequency offset according to the acquired frequency synchronization information and determines the frequency of the wake-up signal and the like.

For example, in the case that the second indication information is carried in the first signal, the terminal may acquire time synchronization information and/or frequency synchronization information according to the second indication information.

Optionally, the time synchronization information may include at least one of:

(1) Index information of a listening opportunity of the first signal;

Alternatively, the index information of the listening opportunity of the first signal may be index information that the first signal listens in one first signal listening set. For example, a first signal listening set may include a plurality of first signal listening opportunities, which may be numbered. For example, assuming that one first signal set listening includes 4 first signal listening opportunities, index information of each first signal listening opportunity may be 0, 1, 2, and 3 in sequence.

(2) Index information of the first time unit.

Optionally, the index information of the first time unit may be index information of the first time unit in the first signal listening period. That is, the index of the first time unit starts from 0 in each first signal listening period. For example, the length of the first signal monitoring period is 4 first time units, and index information of each first time unit is sequentially 0, 1, 2 and 3.

(3) Boundary information for at least one time cell.

Optionally, the at least one time unit may be one or more of ASK symbol, system frame, subframe, slot, and OFDM symbol. The boundaries of the various time cells can be determined by boundary information of at least one time cell. Alternatively, the ASK modulation includes on-off keying (OOK) modulation. OOK modulation is a special case of ASK modulation. Note that the boundary information may include: start time information and end time information.

(4) And monitoring boundary information of a period of the first signal where the first signal is located.

For example, the boundary information of the first signal listening period where the first signal is located may include: the first signal monitors boundary information of a starting time unit of a period of the first signal.

(5) And the boundary information of a first signal monitoring set where the first signal is located.

Optionally, the first signal listening set comprises at least one first signal listening opportunity. For example, the boundary information of the first signal listening set where the first signal is located may include: boundary information of an ending time unit of a first signal monitoring set where the first signal is located.

(6) And the first indication information is used for indicating that the first signal is positioned in a second time unit of the first half or the second half. I.e. the first indication information is used to indicate that the first signal is located within the first half of the second time unit or the first indication information is used to indicate that the first signal is located within the second half of the second time unit.

Alternatively, the first time unit and the second time unit may be any one of ASK symbol, system frame, subframe, slot, and OFDM symbol, respectively. The first time unit and the second time unit may be the same. Alternatively, the first time unit is different from the second time unit, for example, the first time unit is a subframe, the second time unit is a system frame, and the index information of the first time unit in the second indication information may be index information of a subframe in which the first signal is located, where the first indication information is used to indicate whether the first signal is in a first half of a system frame or a second half of the system frame.

In the embodiment of the application, the time synchronization information and/or the frequency synchronization information may be used for the terminal to detect a wake-up signal. For example, the terminal may determine time information of a wake-up signal listening opportunity according to the time synchronization information and/or the frequency synchronization information, so as to detect the wake-up signal on the corresponding listening opportunity.

In one possible implementation, after S212, the method may further include: and the terminal detects a wake-up signal according to the time synchronization information and/or the frequency synchronization information.

Optionally, the terminal determines time information and/or frequency information of a wake-up signal monitor according to the time synchronization information and/or frequency synchronization information, and then detects the wake-up signal on the wake-up signal monitor according to the time information and/or frequency information.

Optionally, the time information of the wake-up signal listening opportunity includes at least one of:

(1) And the wake-up signal monitors boundary information of a time unit where the opportunity is located. Optionally, through the boundary information, the terminal may determine at least one of a start time, an end time, and length information of the occupied time unit of the time unit corresponding to the wake-up signal monitor, so as to detect the wake-up signal.

(2) And the wake-up signal monitors the offset information of the starting time or the ending time of the opportunity from the reference point. Optionally, the reference point is a start position or an end position of the first signal listening period. Through the offset information, the terminal can determine the offset information of the wake-up signal monitor from the reference point, so that the time position information of the wake-up signal monitor can be obtained according to the reference point.

In the embodiment of the present application, in order to further reduce the monitoring or detecting power consumption of the terminal, the wake-up signal may be a low-power wake-up signal.

In one possible implementation, before S210, the method further includes: the terminal acquires first configuration information, wherein the first configuration information is configured and/or agreed by a network side.

Optionally, the first configuration information includes at least one of the following (one) to (three).

Time cell configuration information. The terminal may determine the configuration information of the time cell through the time cell configuration information.

Optionally, the time unit configuration information includes at least one of: dividing information of time units and numbering period information of the time units.

And (II) first signal configuration information. The terminal may determine the relevant configuration information of the first signal through the first signal configuration information.

Optionally, the first signal configuration information may include at least one of:

(1) The number of first signals contained in the first signal monitoring set;

(2) A first signal listening period size;

(3) Time domain pattern configuration information of the first signal listening set.

Optionally, the time domain pattern configuration information of the first signal listening set comprises at least one time domain pattern, the time domain pattern being related to a subcarrier spacing (Subcarrier Spacing, SCS) and/or the time domain pattern being related to a number of first signals comprised by the first signal listening set. For example, different time domain patterns of the first signal listening set are employed at different SCS levels.

Optionally, the time domain pattern configuration information of the first signal listening set includes at least one of:

(1) The first signal monitoring set comprises information of a time unit occupied by a first signal monitoring machine; for example, index information of a time unit occupied by the first signal monitor, position information of the first signal monitor in the time unit, offset information of the first signal monitor relative to a starting position of the time unit, and the like may be included. For example, in the case that the time unit is an OOK symbol, the information of the time unit occupied by the first signal monitor included in the first signal monitor set may be index information of the OOK symbol occupied by the first signal monitor.

(2) Time interval information of adjacent first signal monitoring opportunities;

(3) The first offset information is offset from a reference point by a starting position or an ending position of the first signal monitoring set, wherein the reference point is a starting position or an ending position of a first signal monitoring period where the first signal monitoring set is located. Optionally, the starting position of the first signal listening set may include: the starting position of the time unit where the first signal monitor opportunity is located in the first signal monitor set, and the ending position of the first signal monitor set includes: the end position of the time unit where the last first signal monitor opportunity in the first signal monitor set is located.

(4) The first signal monitor may occupy the time length information. For example, the first signal listener may occupy consecutive M time units.

And (III) wake-up signal configuration information. Through the wake-up signal configuration information, the terminal may determine the configuration information of the wake-up signal.

Optionally, the wake-up signal configuration information may include at least one of:

(1) And the time domain pattern configuration information of the wake-up signal monitoring set comprises at least one wake-up signal monitoring opportunity. Optionally, the time domain pattern configuration information of the wake-up signal listening set includes at least one time domain pattern, which may be related to SCS and/or the time domain pattern is related to the number of wake-up signals contained in the wake-up signal listening set.

Alternatively, the listening opportunity of the wake-up signal may be configured with respect to the start position of the first signal listening period, e.g. by configuring a time offset from the start position of the first signal period to determine the listening opportunity of the wake-up signal.

Optionally, the listening opportunity of the wake-up signal may also be configured with respect to the end position of the first signal listening duration, e.g. by configuring a time offset from the end position of the first signal listening duration to determine the listening opportunity of the wake-up signal.

(2) A wake-up signal monitoring period;

(3) Mapping relation between time domain patterns of the first signal monitoring set and time domain patterns of the wake-up signal monitoring set. Through the mapping relation, the terminal can implicitly determine the time domain pattern of the wake-up signal monitoring set associated with the terminal according to the time domain pattern of the first signal set, namely, determine the monitoring opportunity information of the wake-up signal.

Optionally, the time domain pattern configuration information of the wake-up signal listening set includes information in the following items (1) to (4).

(1) The wake-up signal monitoring set comprises the information of the time unit occupied by the wake-up signal monitoring machine; optionally, index information of a time unit occupied by the wake-up signal monitor, position information of the wake-up signal monitor in the time unit, offset information of the wake-up signal monitor relative to a starting position of the time unit, and the like may be included.

(2) And the second offset information is the offset of the wake-up signal monitoring opportunity from a reference point, wherein the reference point is at least one of the starting position of the first signal monitoring period, the ending position of the first signal monitoring set and the starting position of the first signal monitoring set. Wherein, the starting position of the first signal monitoring set may include: the starting position of the time unit where the first signal monitor opportunity is located in the first signal monitor set, and the ending position of the first signal monitor set includes: the end position of the time unit where the last first signal monitor opportunity in the first signal monitor set is located.

(3) Time interval information of adjacent wake-up signal monitoring opportunities;

(4) The wake-up signal monitors the length of time it takes. For example, the wake-up signal listening would occupy consecutive M time units.

In one possible implementation manner, in S212, the terminal may acquire the time synchronization information and/or the frequency synchronization information in combination with the first configuration information according to the reception of the first signal, so as to implement time synchronization and/or frequency synchronization.

Optionally, the terminal detects a wake-up signal according to the reception of the first signal and/or the first configuration information.

For example, the terminal may determine time information of the wake-up signal according to at least one of wake-up signal configuration information, time unit configuration information, index information of a listening opportunity of the first signal, and boundary information of at least one time unit, and then detect the wake-up signal on the listening opportunity of the wake-up signal.

For another example, the terminal may determine time information of a listening opportunity of the wake-up signal according to at least one of wake-up signal configuration information, time unit configuration information, the first indication information, index information of a first time unit, and boundary information of at least one time unit, and then detect the wake-up signal on the listening opportunity of the wake-up signal.

Taking a time unit as an OOK symbol as an example, the terminal may determine a starting OOK symbol position of a listening opportunity of the wake-up signal according to OOK symbol configuration information, OOK index information associated with the listening opportunity of the wake-up signal, index information of the OOK symbol, and boundary information of the OOK symbol, and then detect the wake-up signal on the listening opportunity of the wake-up signal. For another example, the terminal determines a starting OOK symbol position of a listening opportunity of the wake-up signal according to OOK symbol configuration information, OOK index information associated with the listening opportunity of the wake-up signal, listening opportunity index information of the first signal, OOK symbol index information associated with the listening opportunity of the first signal, and boundary information of OOK symbols, and then detects the wake-up signal on the listening opportunity of the wake-up signal. Wherein the wake-up signal configuration information includes OOK index information associated with the wake-up signal listening opportunity; the first signal configuration information comprises OOK symbol index information associated with a listening opportunity of the first signal; the time cell configuration includes OOK symbol configuration information.

In this embodiment of the present application, the terminal may further obtain boundary information of a time unit and index information of the time unit according to target time unit index information associated with a first signal listening opportunity in the first signal listening set or index information of a listening opportunity of the received first signal. Wherein the first signal listening occasion has its associated time unit index.

In this embodiment of the present application, the terminal may obtain, according to the reception of the first signal, a first time unit index where the first signal is located; and the terminal obtains a first time unit in which the first signal is located as a first half of the first time unit or a second half of the first time unit according to the reception of the first signal.

Wherein, in case a first condition is met, the first time unit is a symbol (may be an ASK symbol); wherein the first condition comprises: the first signal period length is greater than or equal to a first value, or the time domain drift is greater than or equal to one symbol length.

The first time unit is a time slot under the condition that the second condition is met; wherein the second condition comprises: the first signal period length is greater than or equal to a second value, or the time domain drift is greater than or equal to a slot length.

The first time unit is a system frame under the condition that a third condition is met; wherein the third condition comprises: the first signal period length is greater than or equal to a third value, or the time domain drift is greater than or equal to a system frame length.

Fig. 5 shows a flowchart of another method for acquiring synchronization information in an embodiment of the present application, and the method 500 may be performed by a network side device. In other words, the method may be performed by software or hardware installed on the network-side device. As shown in fig. 5, the method may include the following steps.

S510, the network side equipment sends a first signal to the terminal, wherein the first signal is used for the terminal to acquire time synchronization information and/or frequency synchronization information.

The first signal is the same as the first signal in the method 200, and the network side device sends the first signal to the terminal, so that the terminal can acquire time synchronization information and/or frequency synchronization information based on the reception of the first signal.

Optionally, the time synchronization information includes at least one of:

index information of a listening opportunity of the first signal;

index information of the first time unit;

boundary information of at least one time cell;

Boundary information of a first signal monitoring period where the first signal is located;

boundary information of a first signal monitoring set where the first signal is located, wherein the first signal monitoring set comprises at least one first signal monitoring opportunity;

and the first indication information is used for indicating that the first signal is positioned in a second time unit of the first half or the second half.

The time synchronization information is the same as the time synchronization information in the method 200, and specific reference may be made to the related description in the method 200, which is not described herein.

In one possible implementation, the first signal may carry second indication information, where the second indication information includes at least one of the following items of time synchronization information:

index information of the first time unit;

the first indication information;

index information of listening opportunities of the first signal.

The second indication information is the same as the second indication information in the method 200, and specific reference may be made to the related description in the method 200, which is not described herein.

Optionally, the second indication information may be carried by at least one of:

a first sequence of the first signal;

A data field of the first signal.

In one possible implementation, before S510, the method may further include: the network side equipment configures first configuration information for the terminal.

Optionally, the first configuration information includes at least one of:

(1) Time cell configuration information; optionally, the time unit configuration information includes at least one of: dividing information of time units and numbering period information of the time units.

(2) First signal configuration information; optionally, the first signal configuration information may include at least one of: the number of first signals contained in the first signal monitoring set; a first signal listening period size; time domain pattern configuration information of the first signal listening set.

(3) Wake-up signal configuration information. Optionally, the wake-up signal configuration information may include at least one of: the method comprises the steps of configuring time domain patterns of a wake-up signal monitoring set, a wake-up signal monitoring period, and a mapping relation between the time domain patterns of a first signal monitoring set and the time domain patterns of the wake-up signal monitoring set.

The first configuration information is the same as the first configuration information in the method 200, and specific reference may be made to the related description in the method 200, which is not described herein.

In order to further understand the technical solutions provided in the embodiments of the present application, the following description uses the first signal as a beacon signal as an example.

Example 1

In this embodiment, the time synchronization information is acquired based on the first configuration information and the second indication information (i.e., index information of the beacon signal listening opportunity) in the OOK symbol as a time unit.

In this embodiment, the network side device configures or agrees with a beacon signal listening set that includes at least one beacon signal listening opportunity. The number of beacon signal listening opportunities is the number of beacon signal listening opportunities within a beacon signal listening set. For example, in fig. 6, one beacon signal set includes m=8 beacon signals, and the number of listening opportunities for each beacon signal is from 0 to 7. It should be noted that if one beacon signal monitoring set contains only one beacon signal monitoring opportunity, no numbering information of the beacon signal monitoring opportunity is required.

The network side equipment configuration or protocol appoints first configuration information to include:

(1) The time unit configuration information may include information such as division information of the OOK symbol unit, a numbering period of the OOK symbol, and the like. The number period of the OOK symbol may be equal to the beacon signal period length. That is, the OOK symbols are numbered in one beacon signal period.

(2) Beacon signal configuration information, wherein the beacon signal configuration may include the following information:

a) The number of beacon signal monitoring opportunities contained in the beacon signal monitoring set is information, and M=8;

b) The configuration information may specifically include at least one of the following:

i. the beacon signal listens for information on the OOK symbol in which the beacon signal is located in the set.

The time interval information of the listening opportunity of the adjacent beacon signal is for example 2 OOK symbol lengths.

The first offset information is the offset of the starting position of the beacon signal monitoring set from the starting position of the beacon signal monitoring period where the beacon signal monitoring set is positioned; for example, 4 OOK symbol lengths.

The length of time each beacon signal listener will occupy, for example, 10 OOK symbol lengths per beacon signal listener.

(3) Wake-up signal configuration information, wherein the wake-up signal configuration information may include: the listening opportunity configuration information of the wake-up signal. The listening opportunity configuration information refers to time domain location information.

It should be noted that the start position of each beacon signal is aligned with the start position of the OOK symbol. According to the time domain pattern configuration of the beacon signal monitoring set, the network side device and the terminal can acquire the OOK symbol indexes/information of all beacon signals in one beacon signal monitoring set, as shown in fig. 7.

In addition, the beacon signal may further carry first indication information, where the first indication information includes: the beacon signal listens for the index information of the opportunity.

In the embodiment of the application, each beacon signal detected by the terminal carries index information of a corresponding beacon signal monitoring opportunity. The terminal implements one or more beacon signals within a beacon signal period that may be detected in a beacon signal listening opportunity contained in a beacon signal listening set according to the terminal. Terminal implementation refers to the terminal being able to detect the best K beacon signals according to the detected beacon signal strength, e.g. the terminal receives beacon signals 2 and 3 in fig. 7.

The terminal can determine the OOK symbol index and the boundary position of the detected beacon signal according to the detected beacon signal monitoring opportunity index and the time domain pattern of the agreed beacon signal monitoring set. For example, in fig. 7, after detecting the beacon signals 2 and 3, the terminal can determine the boundary of the OOK symbol and the information such as the index of the OOK symbol. In addition, the terminal can also determine the distance from the time position of the terminal to the starting position of the current beacon signal monitoring period according to the time domain pattern of the beacon signal monitoring set and the first offset. And will not be described in detail herein. Therefore, the terminal can realize the downlink OOK symbol synchronization and then correct the time domain offset. In addition, according to the determined OOK symbol boundary and OOK symbol index information, in combination with the OOK symbol index configuration information occupied by the wake-up signal listening occasion, the terminal can determine a starting OOK symbol position of the wake-up signal listening occasion, and then detect the wake-up signal on the wake-up signal listening occasion.

Example two

In this embodiment, the OOK symbol is used as a time unit, and the synchronization time information is obtained based on the second indication information (OOK index information).

In this embodiment, the network side device configuration or protocol agrees that only one beacon signal listening opportunity is contained within one beacon signal listening set, and therefore does not need to provide beacon signal listening opportunity index information. The beacon signal listener would occupy 10 OOK symbol lengths. The start position of the beacon signal is aligned with the start position of the OOK symbol.

(1) Time cell configuration information, which may include information of division information of OOK symbol units, a numbering period of OOK symbols, and the like. The number period of the OOK symbol may be equal to the beacon signal period length. That is, the OOK symbols are numbered in one beacon signal period.

(2) Wake-up signal configuration information, which may include: monitor opportunity configuration information of wake-up signals; the listening opportunity configuration information refers to time domain location information.

First indication information carried in the beacon signal, the first indication information including: OOK (i.e., first time unit) index information. Note that the OOK index is an OOK index in one beacon signal period.

Based on the time cell configuration information and the detected beacon signal, the terminal can determine the symbol boundaries of OOK so as to correct a time offset of no more than one OOK symbol length. In addition, the offset from the starting position of the monitoring period of the beacon signal where the beacon signal is currently located can be determined according to the OOK index carried by the beacon signal. The terminal can find the starting OOK symbol position of the monitoring opportunity of the wake-up signal according to the determined OOK symbol boundary and the OOK symbol index of the detected OOK beacon signal and then combines the OOK symbol index associated with the monitoring opportunity of the wake-up signal, and then detects the wake-up signal on the monitoring opportunity of the wake-up signal.

Optionally, in the configuration information of the listening opportunity of the wake-up signal, the listening opportunity of the wake-up signal may be configured with respect to a starting position of a beacon signal listening period. For example, a time offset from the beginning of the beacon signal listening period is configured to determine the listening opportunity for the wake-up signal. Furthermore, the listening opportunity for the wake-up signal may be configured with respect to the end position of the beacon signal listening duration, e.g. by configuring a time offset from the end position of the beacon signal listening duration to determine the listening opportunity for the wake-up signal.

Example III

In the present embodiment, the time synchronization information is acquired based on the first configuration information and the second instruction information.

The network side device configures or protocols a beacon signal set that includes at least one beacon signal listening opportunity. In a beacon signal monitoring period, the network side equipment transmits a beacon signal set according to the beacon signal monitoring set. The number of a beacon signal is the number of that beacon signal within a beacon signal set. For example, in fig. 6, one beacon signal set includes m=8 beacon signals, and the number of listening opportunities for each beacon signal is from 0 to 7. It should be noted that if one beacon signal monitoring set contains only one beacon signal monitoring opportunity, no numbering information of the beacon signal monitoring opportunity is required.

(1) The time unit configuration information may include information of division information of the OOK symbol unit, a numbering period of the OOK symbol, and the like. The number period of the OOK symbol may be equal to the beacon signal period length. That is, the OOK symbols are numbered in one beacon signal period.

(2) Beacon signal configuration information, which may include: the number of beacon signal monitoring opportunities contained in the beacon signal monitoring set is information, and M=8; and time domain pattern configuration of the beacon signal listening set.

The time domain pattern configuration of the beacon signal listening set may include at least one of the following:

a) The beacon signal listens for information on the slot and symbol (second time unit) in which the beacon signal is located in the set. The second time unit includes two types of time units: slot and symbol.

b) The time interval information of the adjacent beacon signal listening opportunities, for example, the interval between 4 beacon signal listening opportunities in one slot is 2 symbols long, and the interval between adjacent beacon signal listening opportunities in different slots is 1 slot.

c) The first offset information is offset from the starting position of the beacon signal monitoring set to the starting position of the beacon signal monitoring period where the beacon signal monitoring set is positioned; for example, 4 slots long.

d) The time length information occupied by each beacon signal is, for example, 2 symbols in length.

(3) Wake-up signal configuration information, which may include: the listening opportunity configuration information of the wake-up signal. The listening opportunity configuration information refers to time domain location information.

It should be noted that the start position of each beacon signal is aligned with the start position of the symbol. According to the time domain pattern configuration of the beacon signal listening set, for example, in fig. 8, the network side device and the terminal can learn the following two pieces of time position information where all beacon signals in one beacon signal set are located:

1, symbol position information;

2, slot position information.

Further, the beacon signal carries first indication information, the first indication information including:

(1) System frame (first time unit) index information, for example, in fig. 8, indicating that the system frame index where the beacon signal set is located in the current beacon listening period is 1;

(2) Half frame indication information; for example, the first half of the system frame.

(3) Index information of the beacon signal; each beacon signal carries its corresponding index information.

The terminal can determine the following time information from the detected beacon signal:

(1) Symbol boundary timing;

(2) Slot boundary timing;

(3) Timing of the field boundaries;

(4) And acquiring the current wireless frame number.

Thus, the terminal can achieve synchronization at different time unit levels, and then correct the time domain offset.

In the embodiment of the application, the time position information of the beacon signal is configured through the first signal bearing and/or the network side equipment/protocol, so that the terminal receives the first signal and performs downlink synchronization or timing, thereby realizing time offset correction and improving the reliability of wake-up signal reception.

According to the method for acquiring the synchronization information, the execution subject can be the device for acquiring the synchronization information. In the embodiment of the present application, an example of a method for executing the acquisition of the synchronization information by the synchronization information acquisition device is described.

Fig. 9 shows a schematic structural diagram of an apparatus for acquiring synchronization information in an embodiment of the present application, as shown in fig. 9, the apparatus 900 mainly includes: a receiving module 901 and an acquiring module 902.

In this embodiment of the present application, a receiving module 901 is configured to receive a first signal sent by a network side device; an obtaining module 902, configured to obtain time synchronization information and/or frequency synchronization information according to the reception of the first signal.

In one possible implementation, the time synchronization information includes at least one of:

index information of a listening opportunity of the first signal;

index information of the first time unit;

boundary information of at least one time cell;

In one possible implementation, the reception opportunity of the first signal is within one or more consecutive time units.

In one possible implementation, the time synchronization information and/or frequency synchronization information is used for the terminal to detect a wake-up signal.

In one possible implementation, as shown in fig. 9, the apparatus may further include: the detection module 903 is configured to detect a wake-up signal according to the time synchronization information and/or the frequency synchronization information.

In one possible implementation, detecting a wake-up signal according to the time synchronization information and/or the frequency synchronization information includes:

determining time information and/or frequency information of a wake-up signal monitor according to the time synchronization information and/or frequency synchronization information;

and detecting the wake-up signal on the wake-up signal monitor according to the time information and/or the frequency information.

In one possible implementation, the time information of the wake-up signal listening opportunity includes at least one of:

The wake-up signal monitors boundary information of a time unit where the opportunity is located;

and the wake-up signal monitors the offset information of the starting time or the ending time of the opportunity from the reference point.

In one possible implementation, the at least one time unit includes at least one of:

amplitude shift keying ASK symbols;

a system frame;

a sub-frame;

time slots;

orthogonal frequency division multiplexing OFDM symbols.

In one possible implementation manner, the first time unit and the second time unit are any one of the following respectively:

ASK symbols;

a system frame;

a sub-frame;

time slots;

an OFDM symbol;

wherein the first time unit is the same as the second time unit; alternatively, the first time unit is different from the second time unit.

In one possible implementation manner, the first signal carries second indication information, where the second indication information includes at least one of the following:

index information of the first time unit;

the first indication information;

index information of listening opportunities of the first signal.

In one possible implementation, the index information of the first time unit is index information of the first time unit in a first signal listening period.

In one possible implementation, the second indication information is carried by at least one of:

a first sequence of the first signal;

a data field of the first signal.

In one possible implementation, the obtaining module 902 is further configured to obtain first configuration information, where the first configuration information is configured and/or agreed by a network side.

In one possible implementation, the first configuration information includes at least one of:

time cell configuration information;

first signal configuration information;

wake-up signal configuration information.

In one possible implementation, the time unit configuration information includes at least one of: dividing information of time units and numbering period information of the time units.

In one possible implementation, the first signal configuration information includes at least one of:

the number of first signals contained in the first signal monitoring set;

a first signal listening period size;

time domain pattern configuration information of the first signal listening set.

In one possible implementation, the time domain pattern configuration information of the first signal listening set comprises at least one time domain pattern, the time domain pattern being related to a subcarrier spacing SCS and/or the time domain pattern being related to a number of first signals comprised by the first signal listening set.

In one possible implementation, the time domain pattern configuration information of the first signal listening set includes at least one of:

the first signal monitoring set comprises information of a time unit occupied by a first signal monitoring machine;

time interval information of adjacent first signal monitoring opportunities;

the first offset information is an offset of a starting position or an ending position of the first signal monitoring set from a reference point, wherein the reference point is a starting position or an ending position of a first signal monitoring period in which the first signal monitoring set is located;

the first signal monitor may occupy the time length information.

In one possible implementation, the wake-up signal configuration information includes at least one of:

time domain pattern configuration information of a wake-up signal monitoring set, wherein the wake-up signal monitoring set comprises at least one wake-up signal monitoring opportunity;

a wake-up signal monitoring period;

mapping relation between time domain patterns of the first signal monitoring set and time domain patterns of the wake-up signal monitoring set.

In one possible implementation, the time domain pattern configuration information of the wake-up signal listening set includes:

The wake-up signal monitoring set comprises the information of the time unit occupied by the wake-up signal monitoring machine;

the second offset information is the offset of the wake-up signal monitor from a reference point, wherein the reference point is at least one of a starting position of a first signal monitor period, an ending position of the first signal monitor period, an ending position of a first signal monitor set and a starting position of the first signal monitor set;

time interval information of adjacent wake-up signal monitoring opportunities;

the wake-up signal monitors the length of time it takes.

In one possible implementation, the first signal is a beacon signal or a wake-up signal.

In one possible implementation, the wake-up signal comprises a low power wake-up signal.

The device for acquiring the synchronization information in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may 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, 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 application are not specifically limited.

The synchronization information acquiring device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Fig. 10 is a schematic structural diagram of another apparatus for acquiring synchronization information in the embodiment of the present application, as shown in fig. 10, the apparatus 1000 mainly includes: a transmission module 1001.

In this embodiment of the present application, the sending module 1001 is configured to send a first signal to a terminal, where the first signal is used for the terminal to obtain time synchronization information and/or frequency synchronization information.

index information of a listening opportunity of the first signal;

index information of the first time unit;

boundary information of at least one time cell;

In one possible implementation, the first signal carries second indication information, the second indication information including at least one of the following in the time synchronization information:

index information of the first time unit;

the first indication information;

index information of listening opportunities of the first signal.

a first sequence of the first signal;

a data field of the first signal.

In one possible implementation manner, the sending module is further configured to configure the first configuration information for the terminal.

time cell configuration information;

first signal configuration information;

wake-up signal configuration information.

The synchronization information acquiring device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 5, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Optionally, as shown in fig. 11, the embodiment of the present application further provides a communication device 1100, including a processor 1101 and a memory 1102, where the memory 1102 stores a program or an instruction that can be executed on the processor 1101, for example, when the communication device 1100 is a terminal, the program or the instruction is executed by the processor 1101 to implement the steps of the embodiment of the method 200 for obtaining synchronization information, and the same technical effect can be achieved. When the communication device 1100 is a network-side device, the program or the instruction, when executed by the processor 1101, implements the steps of the embodiment of the method 500 for obtaining synchronization information, 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 also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for realizing the steps of the embodiment of the method 200 for acquiring the synchronous information, and the communication interface is used for communicating with external equipment. 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 hardware structure of a terminal 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 understood that in the embodiment of the present application, the input unit 1204 may include a graphics processing unit (Graphics Processing Unit, GPU) 12041 and a microphone 12042, and the graphics processor 12041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 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 this embodiment, after receiving downlink data from the network side 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 non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (ProgrammableROM, PROM), an erasable programmable Read-only memory (ErasablePROM, EPROM), an electrically erasable programmable Read-only memory (ElectricallyEPROM, EEPROM), or a flash memory, among others. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (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.

The radio frequency unit 1201 is configured to receive a first signal sent by a network side device;

processor 1210 is configured to obtain time synchronization information and/or frequency synchronization information according to the reception of the first signal.

The embodiment of the application also provides a network side device, which comprises a processor and a communication interface, wherein the processor is used for realizing the steps of the embodiment of the method 500 for acquiring the synchronous information, and the communication interface is used for communicating with an external device. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 13, the network-side device 1300 includes: an antenna 1301, a radio frequency device 1302, a baseband device 1303, a processor 1304, and a memory 1305. The antenna 1301 is connected to a radio frequency device 1302. In the uplink direction, the radio frequency device 1302 receives information via the antenna 1301, and transmits the received information to the baseband device 1303 for processing. In the downlink direction, the baseband device 1303 processes information to be transmitted, and transmits the processed information to the radio frequency device 1302, and the radio frequency device 1302 processes the received information and transmits the processed information through the antenna 1301.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 1303, where the baseband apparatus 1303 includes a baseband processor.

The baseband apparatus 1303 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 13, where one chip, for example, a baseband processor, is connected to the memory 1305 through a bus interface, so as to call a program in the memory 1305 to perform the network device operation shown in the above method embodiment.

The network side device may also include a network interface 1306, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1300 according to the embodiment of the present invention further includes: instructions or programs stored in the memory 1305 and executable on the processor 1304, the processor 1304 invokes the instructions or programs in the memory 1305 to perform the methods performed by the modules shown in fig. 10 and achieve the same technical effects, and are not repeated here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above-mentioned method embodiment for acquiring synchronization information, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above 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.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, the processor is configured to run a program or an instruction, implement each process of the above-mentioned synchronization information acquisition method embodiment, and achieve the same technical effect, so as to avoid repetition, and no further description is provided 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-mentioned method embodiment for obtaining synchronization information, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides a system for acquiring the synchronization information, which comprises the following steps: a terminal and a network side device, the terminal may be configured to perform the steps of the method 200 for acquiring synchronization information as described above, and the network side device may be configured to perform the steps of the method 500 for acquiring synchronization information as described above.

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 also 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 solutions 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 (such as ROM/RAM, magnetic disk, optical disk), comprising several 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 described in 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 of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. The method for acquiring the synchronous information is characterized by comprising the following steps:

the terminal receives a first signal sent by network side equipment;

and the terminal acquires time synchronization information and/or frequency synchronization information according to the reception of the first signal.

2. The method of claim 1, wherein the time synchronization information comprises at least one of:

index information of a listening opportunity of the first signal;

index information of the first time unit;

boundary information of at least one time cell;

3. The method of claim 1, wherein the reception opportunity of the first signal is within one or more consecutive time units.

4. Method according to claim 1 or 2, characterized in that the time synchronization information and/or frequency synchronization information is used for the terminal to detect a wake-up signal.

5. The method according to claim 1, wherein after acquiring the time synchronization information and/or frequency synchronization information, the method further comprises:

and the terminal detects a wake-up signal according to the time synchronization information and/or the frequency synchronization information.

6. The method according to claim 5, wherein the terminal detects a wake-up signal based on the time synchronization information and/or frequency synchronization information, comprising:

the terminal determines the time information and/or the frequency information of the wake-up signal monitoring opportunity according to the time synchronization information and/or the frequency synchronization information;

7. The method of claim 6, wherein the time information of the wake-up signal listening opportunity comprises at least one of:

8. The method of claim 2, wherein the at least one time unit comprises at least one of:

amplitude shift keying ASK symbols;

a system frame;

a sub-frame;

time slots;

orthogonal frequency division multiplexing OFDM symbols.

9. The method according to claim 2, wherein the first time unit and the second time unit are each any one of the following:

ASK symbols;

a system frame;

a sub-frame;

time slots;

an OFDM symbol;

10. The method of claim 2, wherein the first signal carries second indication information, wherein the second indication information comprises at least one of:

index information of the first time unit;

The first indication information;

index information of listening opportunities of the first signal.

11. The method of claim 10, wherein the index information of the first time unit is index information of the first time unit during a first signal listening period.

12. The method of claim 10, wherein the second indication information is carried by at least one of:

a first sequence of the first signal;

a data field of the first signal.

13. The method of claim 1, wherein before the terminal receives the first signal sent by the network side device, the method further comprises:

the terminal acquires first configuration information, wherein the first configuration information is configured and/or agreed by a network side.

14. The method of claim 13, wherein the first configuration information comprises at least one of:

time cell configuration information;

first signal configuration information;

wake-up signal configuration information.

15. The method of claim 14, wherein the time cell configuration information comprises at least one of: dividing information of time units and numbering period information of the time units.

16. The method of claim 14, wherein the first signal configuration information comprises at least one of:

the number of first signals contained in the first signal monitoring set;

a first signal listening period size;

17. The method according to claim 16, characterized in that the time domain pattern configuration information of the first signal listening set comprises at least one time domain pattern, which time domain pattern is related to a subcarrier spacing SCS and/or which time domain pattern is related to the number of first signals comprised by the first signal listening set.

18. The method of claim 16, wherein the time domain pattern configuration information of the first signal listening set comprises at least one of:

time interval information of adjacent first signal monitoring opportunities;

The first signal monitor may occupy the time length information.

19. The method of claim 14, wherein the wake-up signal configuration information comprises at least one of:

a wake-up signal monitoring period;

20. The method of claim 19, wherein the time domain pattern configuration information of the wake-up signal listening set comprises:

time interval information of adjacent wake-up signal monitoring opportunities;

the wake-up signal monitors the length of time it takes.

21. The method according to any of claims 1 to 20, wherein the first signal is a beacon signal or a wake-up signal.

22. The method of claim 4, wherein the wake-up signal comprises a low power wake-up signal.

23. The method for acquiring the synchronous information is characterized by comprising the following steps:

the network side equipment sends a first signal to a terminal, wherein the first signal is used for the terminal to acquire time synchronization information and/or frequency synchronization information.

24. The method of claim 23, wherein the time synchronization information comprises at least one of:

index information of a listening opportunity of the first signal;

index information of the first time unit;

boundary information of at least one time cell;

25. The method of claim 24, wherein the first signal carries second indication information comprising at least one of the following of the time synchronization information:

index information of the first time unit;

the first indication information;

index information of listening opportunities of the first signal.

26. The method of claim 25, wherein the second indication information is carried by at least one of:

a first sequence of the first signal;

a data field of the first signal.

27. The method of claim 23, wherein before the network side device sends the first signal to the terminal, the method further comprises:

the network side equipment configures first configuration information for the terminal.

28. The method of claim 27, wherein the first configuration information comprises at least one of:

time cell configuration information;

first signal configuration information;

wake-up signal configuration information.

29. An apparatus for acquiring synchronization information, comprising:

the receiving module is used for receiving a first signal sent by the network side equipment;

And the acquisition module is used for acquiring time synchronization information and/or frequency synchronization information according to the reception of the first signal.

30. The apparatus as recited in claim 29, further comprising:

and the detection module is used for detecting a wake-up signal according to the time synchronization information and/or the frequency synchronization information.

31. The apparatus of claim 30, wherein detecting a wake-up signal based on the time synchronization information and/or frequency synchronization information comprises:

32. The apparatus of claim 29, wherein the means for obtaining is further configured to obtain first configuration information, the first configuration information being agreed upon by a network side configuration and/or protocol.

33. An apparatus for acquiring synchronization information, comprising:

and the sending module is used for sending a first signal to the terminal, wherein the first signal is used for the terminal to acquire time synchronization information and/or frequency synchronization information.

34. 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 of obtaining synchronization information according to any one of claims 1 to 22.

35. A network side device 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 of obtaining synchronization information according to any one of claims 23 to 28.

36. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the synchronization information acquisition method according to any one of claims 1 to 22, or the steps of the synchronization information acquisition method according to any one of claims 23 to 28.