CN113133090B

CN113133090B - Signal transmission method and device

Info

Publication number: CN113133090B
Application number: CN201911399274.1A
Authority: CN
Inventors: 赵铮; 王加庆; 郑方政; 孙韶辉
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2023-03-31
Anticipated expiration: 2039-12-30
Also published as: CN113133090A

Abstract

The application discloses a signal transmission method and a signal transmission device, which are used for realizing energy-saving control of wireless communication equipment with low power consumption and high transmission rate through multi-stage energy-saving signals. On a network side, a signal transmission method provided by the present application includes: determining that a power saving signal is required to be sent to a terminal, wherein the power saving signal comprises a plurality of signals with system switching capability and/or joint synchronization capability; and sending the energy-saving signal to a terminal.

Description

Signal transmission method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a signal transmission method and apparatus.

Background

In release 16 (R16) and release 17 (R17) of New Radio (NR) technologies, third Generation Partnership project (3 gpp) has conducted energy-saving studies on NRs, which all require a state of waking up periodically or always. In an IDLE (IDLE) state, user Equipment (UE) needs to wake up at regular time according to a paging opportunity period in order to receive a paging signal, perform Radio Resource Management (RRM) measurement and synchronization, receive and monitor paging information only after synchronization is completed, and the system cannot enter a deep sleep state for a long time. For example, the paging cycle is 1280ms, and the ue wakes up every 1280ms at least 28ms in advance, performs RRM measurement and synchronization, which is 120 ma at current, and then, according to the handset voltage, it can be inferred that the power of this part is several hundred mw.

In a Long Term Evolution (LTE) narrowband Internet of Things (NB-IoT) stage, energy-saving design is performed on IDLE-state UEs, and a sequence indicates whether each paging cycle needs to be decoded for paging or not, and when there is no paging information, the sequence indicates that the UEs do not perform paging monitoring.

The NR R16 performs power saving design in the connected state, and indicates in R16 through physical layer downlink control information whether the UE needs to wake up in the next DRX. Statistics of the prior art, in most scenarios, the UE does not need to wake up, as shown in table 1. Thus, indicating the user equipment by physical layer signaling may save power consumption.

TABLE 1 statistical analysis of log data based on LTE C-DRX

In summary, although the energy saving technology in LTE NB-IoT can save the power of the ue, the ue still needs to wake up at regular time, and cannot go to sleep for a long time, and when the wake-up interval is short, the ue cannot go to deep sleep. In the energy saving technique in NR R16, when the ue enters the DRX active period, it still needs to perform Physical Downlink Control Channel (PDCCH) blind detection, and power consumption monitors a time slot that does not include the PDCCH.

Disclosure of Invention

The embodiment of the application provides a signal transmission method and a signal transmission device, which are used for realizing energy-saving control of wireless communication equipment with low power consumption and high transmission rate through multi-stage energy-saving signals.

On a network side, a signal transmission method provided in an embodiment of the present application includes:

determining that a power saving signal is required to be sent to a terminal, wherein the power saving signal comprises a plurality of signals with system switching capacity and/or joint synchronization capacity;

and sending the energy-saving signal to a terminal.

By the method, the energy-saving signal is determined to be sent to the terminal, wherein the energy-saving signal comprises a plurality of signals with system switching capacity and/or joint synchronization capacity; and sending the energy-saving signal to the terminal, so that the energy-saving control of the wireless communication equipment with low power consumption and high transmission rate can be realized through the multi-stage energy-saving signal.

Optionally, the system comprises one or a combination of the following systems: a low power consumption hardware system and a wireless communication function system.

Optionally, the wireless communication function system includes one or a combination of the following systems: a DRX activation time system, a PDCCH detection system, a paging detection system and an RRC connected state wireless communication system.

Optionally, the plurality of signals include a first-stage signal and a second-stage signal, and the periods of the power saving information action indicated by the first-stage signal and the second-stage signal are different.

Optionally, the plurality of signals with system switching capability include an nth level signal and an N +1 th level signal, where the nth level signal is used to trigger the terminal to perform N +1 th level signal detection.

Alternatively, the system power consumption for transmitting the nth level signal is less than the system power consumption for transmitting the N +1 th level signal, and the nth level signal sequence is shorter than the N +1 th level signal sequence.

Optionally, the difference of the transmission starting points of the plurality of signals with joint synchronization capability is less than one symbol.

Optionally, the method further comprises:

the synchronization sequences are transmitted on different frequencies.

Correspondingly, on the terminal side, the signal transmission method provided by the embodiment of the application comprises the following steps:

receiving a power save signal comprising a plurality of signals having system switching capabilities and/or joint synchronization capabilities;

and performing energy-saving processing according to the energy-saving signal.

Optionally, performing energy saving processing according to the energy saving signal specifically includes:

and when the first-stage signal is received, starting to detect the second-stage signal, and if the second-stage signal is detected, starting the wireless communication system of the terminal.

Optionally, the method further comprises:

different synchronization sequences transmitted on different frequencies are received, wherein the time starting points of the different synchronization sequence transmissions are different.

On the network side, a signal transmission apparatus provided in an embodiment of the present application includes:

a memory for storing program instructions;

a processor for calling the program instructions stored in the memory and executing according to the obtained program:

and sending the energy-saving signal to a terminal.

Alternatively, the system power consumption for transmitting the nth level signal is less than the system power consumption for transmitting the (N + 1) th level signal, and the nth level signal sequence is shorter than the (N + 1) th level signal sequence.

Optionally, the processor is further configured to call a program instruction stored in the memory, and execute, according to the obtained program:

the synchronization sequences are transmitted on different frequencies.

On a terminal side, a signal transmission apparatus provided in an embodiment of the present application includes:

a memory for storing program instructions;

a processor for calling the program instructions stored in the memory, executing according to the obtained program:

and performing energy-saving processing according to the energy-saving signal.

and when the first-level signal is received, starting to detect the second-level signal, and if the second-level signal is detected, starting the wireless communication system of the terminal.

Optionally, the processor is further configured to call the program instruction stored in the memory, and execute, according to the obtained program:

On the network side, another signal transmission apparatus provided in the embodiments of the present application includes:

the device comprises a determining unit, a processing unit and a processing unit, wherein the determining unit is used for determining that an energy-saving signal needs to be sent to a terminal, and the energy-saving signal comprises a plurality of signals with system switching capacity and/or joint synchronization capacity;

and the sending unit is used for sending the energy-saving signal to the terminal.

At a terminal side, another signal transmission apparatus provided in an embodiment of the present application includes:

a receiving unit for receiving a power saving signal, wherein the power saving signal comprises a plurality of signals with system switching capability and/or joint synchronization capability;

and the processing unit is used for carrying out energy-saving processing according to the energy-saving signal.

Another embodiment of the present application provides a computing device, which includes a memory and a processor, wherein the memory is used for storing program instructions, and the processor is used for calling the program instructions stored in the memory and executing any one of the methods according to the obtained program.

Another embodiment of the present application provides a computer storage medium having stored thereon computer-executable instructions for causing a computer to perform any one of the methods described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic flowchart of a signal transmission method on a network side according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a signal transmission method at a terminal side according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a signal transmission apparatus on a network side according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a terminal-side signal transmission apparatus according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of another signal transmission apparatus on a network side according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another signal transmission apparatus at a terminal side according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In both the LTE phase and the R16 and R17 phases of NR, energy saving of a terminal in a wireless communication system is studied, but in these energy saving systems, a user equipment needs to wake up all the time or wake up at a certain timing, the user equipment cannot enter deep sleep for a long time, and when the wake-up interval is short, the user equipment cannot enter deep sleep.

The prior art proposes passive energy saving systems, where the ue can always be in a deep sleep state, and wake up to perform signal/channel monitoring if necessary, and the ue does not need to wake up at regular time. The existing device level is difficult to meet the requirements of extremely low power consumption and low delay at the same time, and the passive awakening system which meets the requirements of extremely low power consumption and low delay at the same time is realized by combining the characteristics of a communication system and based on the existing device level. In addition, the embodiment of the application also provides a design of a passive wake-up system in a connection state.

The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not described again.

The technical scheme provided by the embodiment of the application can be suitable for various systems, especially 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) system, a 5G NR system, and the like. These various systems include terminal devices and network devices.

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different, for example, in a 5G system, the terminal device may be referred to as a User Equipment (UE). Wireless terminal devices, which may be mobile terminal devices such as mobile telephones (or "cellular" telephones) and computers having mobile terminal devices, e.g., mobile devices that may be portable, pocket, hand-held, computer-included, or vehicle-mounted, communicate voice and/or data with a radio access network via the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, session Initiated Protocol (SIP) phones, wireless Local Loop (WLL) stations, personal Digital Assistants (PDAs), and the like. The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to interconvert received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) or a Code Division Multiple Access (CDMA), may also be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may also be an evolved network device (eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station in a 5G network architecture (next generation system), or may also be a home evolved node B (HeNB), a relay node (HeNB), a home base station (femto), a pico base station (pico), and the like, which are not limited in the embodiment of the present application.

Various embodiments of the present application will be described in detail below with reference to the drawings. It should be noted that the display sequence of the embodiment of the present application only represents the sequence of the embodiment, and does not represent the merits of the technical solutions provided by the embodiments.

The embodiment of the application provides that the energy-saving signal is sent through a multi-stage signal, and the nth stage signal and the (N + 1) th stage signal are combined to carry out joint indication, wherein the indication is energy-saving indication.

On the network side, referring to fig. 1, a signal transmission method provided in an embodiment of the present application includes:

s101, determining that an energy-saving signal is required to be sent to a terminal, wherein the energy-saving signal comprises a plurality of signals with system switching capacity and/or joint synchronization capacity;

and S102, sending the energy-saving signal to a terminal.

Optionally, the system switching capable signal comprises: one or more signals that may indicate system on/off.

Optionally, the wireless communication function system includes one or a combination of the following systems: a DRX activation time system, a PDCCH detection system, a paging detection system and an RRC connection state wireless communication system.

Alternatively, the (N + 1) th stage signal and the (N + 1) th stage signal may be a sequence.

Optionally, the plurality of signals include an nth level signal and an N +1 th level signal, and periods of the power saving information action indicated by the N +1 th level signal and the N +1 th level signal are different. For example, the first-stage signal indicates the power saving information of the long-period signal, and the second-stage signal indicates the power saving information of the short-period signal; wherein, the long period is longer than the short period, and the period configuration time is longer; the short period is configured for a shorter time than the long period. The system adopts a small-delay awakening system, the power consumption is larger, the long-period system with lower power consumption awakens the system, the power consumption of the system can be reduced, namely, the short-period system is started only after a signal sent by the long-period system is detected. Optionally, the two periods, the long period and the short period, may be indicated by higher layer signaling. Optionally, the period in which the power saving information indicated by the nth stage signal is applied includes several periods in which the power saving information indicated by the N +1 th stage signal is applied.

Optionally, the plurality of signals with system switching capability include an nth level signal and an N +1 th level signal, where the nth level signal is used to trigger the terminal to perform N +1 th level signal detection. For example, if the user equipment does not detect the nth level signal, the user equipment does not perform detection of the (N + 1) th level signal.

Optionally, a system power consumption of transmitting the nth stage signal is less than a system power consumption of transmitting the N +1 th stage signal, and the nth stage sequence and the N +1 th stage sequence have different lengths. For example, the length of the nth sequence is shorter than that of the (N + 1) th sequence, the nth sequence is shorter, and a lower detection threshold is set when the user performs sequence detection, so that although the false alarm probability is high, the false detection probability is lower, and the false alarm can be avoided by combining with the (N + 1) th sequence detection. The corresponding effects are analyzed in the first embodiment.

Optionally, the method further comprises:

the synchronization sequences are transmitted on different frequencies.

The time starting points of the different synchronization sequence transmissions are different. The difference between the time starting points of the two synchronization sequences is less than one symbol, then the synchronization accuracy may be less than one symbol.

Optionally, the power saving signal includes a wake up signal and a power saving indication signal.

Optionally, the power saving indication signal includes one or a combination of the following signals: channel State Information (CSI) energy-saving indication signals, bandwidth part (BWP) energy-saving indication signals, secondary cell (SCell) energy-saving indication signals, paging indication signals, reference Signal (RS) indication signals, dormancy indication signals and synchronization indication signals.

Optionally, the first stage signal and the second stage signal have the same or different uses. For example, the first level signal is used to wake up the UE and the second level signal is used for synchronization.

The first embodiment is as follows:

the existing systems are all active wakeup at regular intervals, and if there is no service for a long time, the user equipment also needs active wakeup at regular intervals. Table 2 below lists key parameters of very low power wake-up devices, and as a result, the device cannot meet the requirements of both high data rate and low power consumption.

TABLE 2 Passive Wake-Up device investigation results

Data rate	Power consumption	Sensitivity of reception
			1000kbps	76uW	-76dBm
0.3kbps	0.0045uW	-69dBm
			1.024kbps	6.9uW	-80dBm
10/50kbps	99uW	-97/-92dBm

In this embodiment, a two-stage wake-up system is adopted, the first stage system is an ultra-low power consumption wake-up system, the system is utilized to perform coarse synchronization and wake up the second stage wake-up system, and the first stage system can be always in an on state due to the ultra-low power consumption. Since the transmission rate of the first-stage system is low, the synchronization accuracy is low. The secondary system realizes the fine synchronization and wakes up the wireless communication system to receive the paging signaling or perform the functions of PDCCH monitoring and the like.

From the power consumption perspective, power of both the primary system and the secondary system is generally in the uW level, which is far lower than the milliwatt level of the communication system.

When user equipment needs to receive data, the base station determines that an energy-saving first-level sequence needs to be sent to the terminal, and triggers a second-level system of a user to start working by sending the first-level sequence, wherein the first-level sequence is sent by the first-level system of the base station, the power consumption is lower than that of the second-level system, if the first-level system of the user equipment detects the first-level sequence, the second-level system is started, the second-level system of the user equipment starts to detect the second-level sequence, and if the second-level system detects the second-level sequence sent by the base station, the user equipment starts a transceiver of a wireless communication system.

The sequence sent by the first-level system received by the user equipment is roughly synchronized with the granularity of the system, and the first-level monitoring system of the user equipment is always in an on state. And after the second-level system of the user equipment is triggered, the second-level system starts to work, and when the second-level system monitors a second-level sequence, the user equipment starts the wireless communication system.

The system described below achieves a higher transmission rate than the first stage system and less power consumption than the second stage.

When sequence detection is carried out, a detection threshold is firstly determined according to the false alarm probability, then the detection threshold is utilized to carry out detection of the false dismissal probability, if the detection threshold is matched to be higher, the false alarm probability is lower, but the false dismissal probability is higher, if the detection threshold is matched to be lower, the false alarm probability is higher, but the false dismissal probability is lower, and in practical application, the detection threshold can be configured as required.

In the system provided in the embodiment of the present application, in order to reduce the delay, the first-stage sequence may have a shorter length. Because the length of the sequence is short and the detection omission performance is poor, a lower detection threshold is configured for the first-stage system, so that the detection omission probability can be ensured, but the false alarm probability is higher. In this embodiment, the false alarm of the first-level sequence may cause the second-level system to be mistakenly awakened, and since the second-level system itself is a low-power device, the power increase caused by the mistaken awakening is still small. In the design, the first-level system has low power consumption, but the transmission rate is low, the time delay is large, and the time delay is reduced by ensuring the missing detection performance under the condition of extremely low power consumption through the transmission of a small sequence and a lower detection threshold. The delay and the power consumption of the system are both between the first-level system and the second-level system, and a system with compromise between the delay and the power consumption is obtained.

The third row of data in table 2 above can be used as the first level system, if the length of the first level sequence is 30, the delay is about 30ms, and the parameter is acceptable according to the current requirement that the ue needs to wake up 28ms ahead of time to receive the paging signal. The data in the first and fourth rows of table 2 above may be used as the second stage system, again assuming a second stage sequence length of 30 and a second stage system delay of less than 1ms.

Example two: corresponding to the wake-up of DRX cycle and PDDCH detection.

For a user equipment in a connected state, a first-level signal is a first-level sequence and is used for indicating whether DRX enters activation time or not, the user equipment enters the activation time when receiving the sent first-level sequence, the first-level sequence does not send the activation time (if the user equipment does not detect the first-level sequence, whether the activation time is discussed in different cases or not, if the user equipment does not detect the first-level sequence, the user equipment does not wake up, if the user equipment does not detect the first-level sequence, whether the second-level sequence wakes up or not can be configured according to a high-level configuration or a physical layer statistics), the user equipment enters the DRX activation time when detecting the first-level sequence, the user equipment starts to detect the second-level sequence, if the user equipment detects the second-level sequence, the user equipment performs blind detection on a PDCCH, and one second-level sequence corresponds to several PDCCH detection opportunities which can be configured through the high-level. It should be noted that the first-stage sequence and the second-stage sequence may be transmitted through a wake-up device with low power consumption.

In addition, this embodiment may also be applied to the first embodiment, that is, the first-stage sequence and the second-stage sequence may be sent by a wake-up device with low power consumption. The beneficial effects include: the first-stage system has smaller power consumption and larger delay, the second-stage system has larger power consumption and smaller delay, the switch of the DRX is insensitive to the delay, the first-stage system with extremely low power consumption can be always started, the first-stage system is used for indicating whether to enter the switch state of the DRX, and after the second-stage system is started, the second-stage system can indicate whether to carry out PDCCH detection or not with smaller delay. The second-stage system is not always on, although the power consumption is large, the second-stage system is only on when needed, so that the average power is low. In addition, the wireless communication system is in a deep sleep state until being awakened by the second-level system. The power consumption of the existing system is milliwatt level, and the power consumption of the system is far lower than that of the existing system.

Example three: and processing time domain corresponding to the synchronization.

According to the transmission rate of the low-power consumption equipment, if the transmission rate is 1kHz, the low-power consumption equipment is used for synchronization, and the synchronization precision is 1ms. The accuracy of wireless communication reaches a symbol level, and the length of one symbol is less than 1ms, so after synchronization by a low-power system, fine synchronization by a Synchronization Signal Block (SSB) is needed. To reduce the search complexity of the SSB, the user equipment may determine the time and frequency location of the SSB from the sequence location of the detected low power consuming devices.

The specific time position may be determined according to the low power consumption sequence transmission position, for example, after several milliseconds, the low power consumption sequence transmission position may have an SSB. The specific time may be predefined by a standard or configured at a higher level.

It should be noted that whether or not the SSB exists may be configured by a higher layer.

Has the advantages that: the synchronization process of the low-power consumption equipment is perfected.

Example four: high accuracy low-power consumption synchronization equipment.

The embodiment of the application provides a high-precision synchronization system based on low-power-consumption equipment, a base station sends different synchronization sequences on different frequencies, a plurality of synchronization sequence sending starting points are different, the cost of the low-power-consumption equipment is low, the user equipment receives the synchronization sequences by the low-power-consumption equipment and can respectively receive the synchronization sequences, and the user equipment determines the time position of a fractional symbol according to the difference of the synchronization sequences, so that the synchronization precision is improved.

Because the low-power consumption equipment has lower cost, high-precision synchronization is realized through a plurality of low-cost equipment.

Correspondingly, referring to fig. 2, on the terminal side, a signal transmission method provided in an embodiment of the present application includes:

s201, receiving an energy-saving signal, wherein the energy-saving signal comprises a plurality of signals with system switching capacity and/or joint synchronization capacity;

and S202, performing energy-saving processing according to the energy-saving signal.

Optionally, the method further comprises:

Referring to fig. 3, on a network side, for example, a base station, a signal transmission apparatus provided in an embodiment of the present application includes:

a determining unit 11, configured to determine that an energy saving signal needs to be sent to a terminal, where the energy saving signal includes multiple signals with system switching capability and/or joint synchronization capability;

a sending unit 12, configured to send the energy saving signal to a terminal.

Accordingly, referring to fig. 4, at a terminal side, a signal transmission apparatus provided in an embodiment of the present application includes:

a receiving unit 21, configured to receive a power saving signal, where the power saving signal includes a plurality of signals with system switching capability and/or joint synchronization capability;

and the processing unit 22 is used for performing energy-saving processing according to the energy-saving signal.

Referring to fig. 5, on a network side, for example, a base station, a signal transmission apparatus provided in an embodiment of the present application includes:

the processor 500, which is used to read the program in the memory 520, executes the following processes:

the power save signal is transmitted to the terminal through the transceiver 510.

Optionally, the processor 500 is further configured to read the program in the memory 520, and execute the following processes:

the synchronization sequences are transmitted over different frequencies by the transceiver 510.

A transceiver 510 for receiving and transmitting data under the control of the processor 500.

Wherein in fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 500, and various circuits, represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.

The processor 500 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD).

Correspondingly, referring to fig. 6, on the terminal side, another signal transmission apparatus provided in the embodiment of the present application includes:

the processor 600, which is used to read the program in the memory 620, executes the following processes:

receiving, by the transceiver 610, a power save signal comprising a plurality of signals having system switching capabilities and/or joint synchronization capabilities;

and performing energy-saving processing according to the energy-saving signal.

Optionally, the processor 600 is further configured to read the program in the memory 620 and execute the following processes:

different synchronization sequences transmitted on different frequencies are received by the transceiver 610, where the different synchronization sequences are transmitted at different time starting points.

A transceiver 610 for receiving and transmitting data under the control of the processor 600.

Where in fig. 6, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 600 and memory represented by memory 620. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 610 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 630 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

Alternatively, the processor 600 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The embodiment of the present application provides a computing device, which may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a Personal Digital Assistant (PDA), and the like. The computing device may include a Central Processing Unit (CPU), memory, input/output devices, etc., the input devices may include a keyboard, mouse, touch screen, etc., and the output devices may include a Display device, such as a Liquid Crystal Display (LCD), a Cathode Ray Tube (CRT), etc.

The memory may include Read Only Memory (ROM) and Random Access Memory (RAM), and provides the processor with program instructions and data stored in the memory. In the embodiments of the present application, the memory may be used for storing a program of any one of the methods provided by the embodiments of the present application.

The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained program instructions by calling the program instructions stored in the memory.

Embodiments of the present application provide a computer storage medium for storing computer program instructions for an apparatus provided in the embodiments of the present application, which includes a program for executing any one of the methods provided in the embodiments of the present application.

The computer storage media may be any available media or data storage device that can be accessed by a computer, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid State Disks (SSDs)), etc.

The method provided by the embodiment of the application can be applied to terminal equipment and also can be applied to network equipment.

The Terminal device may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), or the like, and optionally, the Terminal may have a capability of communicating with one or more core networks via a Radio Access Network (RAN), for example, the Terminal may be a Mobile phone (or a "cellular" phone), a computer with Mobile property, or the like, and for example, the Terminal may also be a portable, pocket, handheld, computer-embedded, or vehicle-mounted Mobile device.

A network device may be a base station (e.g., access point) that refers to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (NodeB or eNB or e-NodeB) in LTE, or a gNB in 5G system. The embodiments of the present application are not limited.

The above method process flow may be implemented by a software program, which may be stored in a storage medium, and when the stored software program is called, the above method steps are performed.

In summary, the embodiment of the present application provides the following technical solutions:

1) And through the multi-stage cascade of low-power consumption devices and the combination of the characteristics of a wireless system, the low-power consumption system which can meet the requirements of low power consumption and high transmission rate is realized.

2) And through the setting of the multi-stage energy-saving signals and the configuration of the multi-stage signals, the wireless communication equipment is turned on or off according to the period and the notification content of the communication system, so that the aim of saving energy is fulfilled.

3) And the implementation method of how to further carry out fine synchronization based on the low-power consumption equipment is provided.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following beneficial effects:

the prior art proposes passive energy saving systems, where the ue can always be in a deep sleep state, and wake up to perform signal/channel monitoring if necessary, and the ue does not need to wake up at regular time. The existing device level is difficult to meet the requirements of extremely low power consumption and low delay at the same time, and the passive awakening system which meets the requirements of extremely low power consumption and low delay at the same time is realized by combining the characteristics of a communication system and based on the existing device level. In addition, the embodiment of the application provides the design of the passive wake-up system in the connection state.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method of signal transmission, the method comprising:

determining that a power saving signal needs to be sent to a terminal, wherein the power saving signal comprises a plurality of signals with system switching capability and/or joint synchronization capability, the plurality of signals with system switching capability comprises an nth-level signal and an N + 1-level signal, the nth-level signal is used for triggering the terminal to perform N + 1-level signal detection, the system power consumption for sending the nth-level signal is less than that for sending the N + 1-level signal, and the nth-level signal sequence is shorter than the N + 1-level signal sequence; the nth level signal is used for waking up the UE, and the (N + 1) th level signal is used for synchronization; the difference of the transmission starting points of the plurality of signals with the joint synchronization capability is less than one symbol;

transmitting synchronization sequences at different frequencies, wherein the time starting points of the different synchronization sequence transmissions are different;

and sending the energy-saving signal to a terminal.

2. The method of claim 1, wherein the system comprises one or a combination of the following systems: a low power consumption hardware system and a wireless communication function system.

3. The method of claim 2, wherein the wireless communication function system comprises one or a combination of the following systems: a DRX activation time system, a PDCCH detection system, a paging detection system and an RRC connected state wireless communication system.

4. A method of signal transmission, the method comprising:

receiving a power saving signal, wherein the power saving signal comprises a plurality of signals with system switching capability and/or joint synchronization capability, the plurality of signals with system switching capability comprise an nth-level signal and an N + 1-level signal, and the nth-level signal is used for triggering a terminal to perform N + 1-level signal detection; the nth order signal sequence is shorter than the (N + 1) th order signal sequence; the nth level signal is used for waking up the UE, and the (N + 1) th level signal is used for synchronization; the difference of the transmission starting points of the plurality of signals with the joint synchronization capacity is less than one symbol;

receiving different synchronization sequences transmitted on different frequencies, wherein the time starting points of the different synchronization sequences are different;

and performing energy-saving processing according to the energy-saving signal.

5. A signal transmission apparatus, comprising:

a memory for storing program instructions;

and sending the energy-saving signal to a terminal.

6. The apparatus of claim 5, wherein the system comprises one or a combination of the following: a low power consumption hardware system and a wireless communication function system.

7. The apparatus of claim 6, wherein the wireless communication function system comprises one or a combination of the following systems: a DRX activation time system, a PDCCH detection system, a paging detection system and an RRC connected state wireless communication system.

8. A signal transmission apparatus, comprising:

a memory for storing program instructions;

and performing energy-saving processing according to the energy-saving signal.

9. A signal transmission apparatus, comprising:

the device comprises a determining unit, a processing unit and a processing unit, wherein the determining unit is used for determining that a power-saving signal needs to be sent to a terminal, the power-saving signal comprises a plurality of signals with system switching capability and/or joint synchronization capability, the plurality of signals with system switching capability comprise an nth level signal and an N +1 th level signal, the nth level signal is used for triggering the terminal to carry out N +1 th level signal detection, the system power consumption for sending the nth level signal is less than that for sending the N +1 th level signal, and the nth level signal sequence is shorter than the N +1 th level signal sequence; the nth level signal is used for waking up the UE, and the (N + 1) th level signal is used for synchronization; the difference of the transmission starting points of the plurality of signals with the joint synchronization capability is less than one symbol;

a sending unit, configured to send synchronization sequences on different frequencies, where time starting points of sending different synchronization sequences are different;

the sending unit is further configured to send the energy saving signal to a terminal.

10. A signal transmission apparatus, comprising:

the receiving unit is used for receiving a power saving signal, wherein the power saving signal comprises a plurality of signals with system switching capability and/or joint synchronization capability, the plurality of signals with the system switching capability comprise an nth-level signal and an N + 1-level signal, and the nth-level signal is used for triggering a terminal to perform N + 1-level signal detection; the nth order signal sequence is shorter than the (N + 1) th order signal sequence; the nth level signal is used for waking up the UE, and the (N + 1) th level signal is used for synchronization; the difference of the transmission starting points of the plurality of signals with the joint synchronization capacity is less than one symbol;

the receiving unit is further configured to receive different synchronization sequences sent on different frequencies, where starting points of time for sending the different synchronization sequences are different;

11. A computer storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1 to 4.