WO2020133254A1 - System timing management method and communication device - Google Patents

Abstract

Provided by the present application are a system timing management method and a communication device, which can continuously maintain the system timing of a first standard so as to provide reference for a second communication unit during implementation of service scheduling and resource configuration of a second standard, thereby improving the utilization rate of shared resources and working efficiency, and reducing the power consumption. The method comprises the following steps: according to a system timing of a first standard obtained and stored in a common storage area without power down when a first communication unit is in the awake state, a second communication unit calculates a system timing compensation value of the first standard when the first communication unit is in the sleep state, and further calculates a system timing conversion value of the first standard when the first communication unit is in the sleep state.

Description

System timing management method and communication device Technical field

This application relates to the field of communications, and in particular to a system timing management method and a communication device.

Background technique

In a wireless communication system that supports dual connection (DC), the same terminal device can communicate with the master node (MN) of the first standard through the first connection, and communicate with the second standard through the second connection at the same time. Secondary node (SN) communication. For example, the same mobile phone can communicate with the evolved Node (B, eNB) of a long term evolution (LTE) system through its first modem, and simultaneously communicate with the new air interface (new radio) through its second modem , NR) system g node (g Node B, gNB) communication.

In practical applications, the terminal device can independently control the modem that has no data transmission requirement to enter the sleep state, such as disconnecting the power supply of the radio frequency circuit of the modem and the baseband processor to reduce power consumption of the terminal device. It is easy to understand that when the modem is in the sleep state, the modem no longer maintains the system timing between its corresponding nodes.

However, in some scenarios, the terminal device may need to use the system timing between the modem in the sleep state and its corresponding node in order to coordinate the behavior of the modem in the awake state. For example, when the above-mentioned first modem is in a sleep state, the second modem does not know when the first modem wakes up, so the second modem cannot utilize the wireless resources allocated to the first standard to perform data transmission of the second standard, which is the above The wireless resources configured by the two standards are idle because they cannot be shared, resulting in a reduction in the utilization rate of the wireless resources. For another example, the terminal device needs to report the system timing deviation (SFN and Frame Timing Difference, SFTD) between the system timing of the first mode and the system timing of the second mode, so as to serve as a reference when scheduling radio resources. However, this requires that both the first modem and the second modem are in the awake state and lock the above two system timings at the same time to complete. In other words, when one modem is in the awake state and the other modem should be in the sleep state, in order to complete the above SFTD measurement, the other modem must be additionally woken up, resulting in increased power consumption of the terminal device.

Summary of the invention

The present application provides a system timing management method and a communication device, which can continuously maintain the system timing of the first standard corresponding to the communication unit when a communication unit of the terminal device is in a sleep state, thereby implementing the second standard for another communication unit Provides reference for business scheduling and resource configuration in order to achieve shared resources, improve work efficiency and reduce power consumption.

In a first aspect, a communication device is provided. The communication device includes: a common storage area without power failure, a first communication unit and a second communication unit. The first communication unit is used to establish a communication connection of the first standard, and the second communication unit is used to establish a communication connection of the second standard. Wherein, the first communication unit is used to acquire the system timing of the first standard when the first communication unit is in the awake state, and store the system timing of the first standard in the common storage area without powering down. The second communication unit is used to calculate the system timing compensation value of the first standard according to the system timing of the first standard stored in the common storage area without powering down when the second communication unit is in the awake state and the first communication unit is in the sleep state . The second communication unit is also used for calculating the system communication of the first system and the system timing compensation value of the first system according to the system timing compensation value stored in the common storage area without power-off, when the second communication unit is in the awake state and the first communication unit is in sleep At the time, the system of the first system converts the value regularly.

In the communication device provided by the present application, the second communication unit can calculate the first time when the first communication unit is in the sleep state according to the system timing of the first standard acquired and stored in the common storage area without power-off when the first communication unit is in the wake-up state The system timing compensation value of the system, and then calculating the system timing conversion value of the first system when the first communication unit is in a sleep state. That is to say, even if the first communication unit is in the sleep state, the purpose of maintaining the system timing of the first mode can be continuously maintained, so as to provide a reference for the second communication unit to implement the service scheduling and resource configuration process of the second mode, which can improve Shared resource utilization and work efficiency, and reduce power consumption.

For example, when the first communication unit is in a sleep state, the second communication unit can use the wireless resources allocated to the first standard to complete the communication of the second standard, improve the utilization rate of the wireless resources, thereby improving the communication efficiency, and can reduce the probability of resource conflict .

In a possible design, the first communication unit is also used to acquire the system timing of the first mode and time the system of the first mode when the first communication unit is in the awake state and the second communication unit is in the sleep state Store in the public storage area without power down. The second communication unit is also used to acquire the system timing of the second mode when the second communication unit is in the awake state and the first communication unit is in the sleep state. The second communication unit is also used to calculate the system timing deviation between the first system and the second system based on the system timing conversion value of the first system and the system timing of the second system.

In the communication device provided by the present application, the second communication unit can calculate the first according to the system timing of the first system that is acquired and stored in the common storage area without power down when the first communication unit is in the awake state and the second communication unit is in the sleep state The system timing compensation value of the first mode when the communication unit is in the sleep state, and then calculates the system timing conversion value of the first mode when the second communication unit is in the awake state and the first communication unit is in the sleep state, and according to the system timing of the first mode The conversion value and the system timing of the second system, to calculate the system timing deviation between the first system and the second system, can avoid measuring the system timing deviation between the first system and the second system The situation of the communication unit that should maintain the deep sleep state can reduce the power consumption of the communication device during the measurement of the system timing deviation between the first mode and the second mode.

In a possible design, the first communication unit is also used to receive system timing measurement tasks. Among them, the system timing measurement task is used to measure the system timing deviation of the first system and the second system.

Optionally, the second communication unit is also used to receive system timing measurement tasks. Among them, the system timing measurement task is used to measure the system timing deviation of the first system and the second system.

In a possible design, the first communication unit is also used to send the system timing deviation when it is in the awake state again.

Optionally, the second communication unit is also used to send the system timing deviation of the first mode and the second mode when it is in the awake state this time.

In summary, in this application, there are a total of the following four reporting methods for system timing measurement task delivery and system timing deviation reporting: the first node delivers and reports to the first node; the second node delivers and reports to The second node reports; the first node sends the report to the second node; the second node sends the report to the first node.

For the first two methods, it is necessary to wait for the communication unit receiving the system measurement task to report the next time it wakes up. It is applicable to the absence of an ideal backhaul interface between the first node and the second node, such as optical fiber and network cable, but only the wireless interface. In the scenario, there is no need for another node to forward the system timing deviation, and the interaction process is relatively simple.

For the latter two methods, there is no need to wait for the communication unit that receives the system timing measurement task from one node to wake up next time. It only needs the other communication unit to report to the other node after the system timing deviation calculation is completed, and the other node It is sufficient to forward the system timing deviation, which is suitable for scenarios where there is an ideal backhaul interface between the first node and the second node, such as optical fiber and network cable, and the data transmission delay between the two nodes is small, and the system timing deviation is not reported. Need to wait, better timeliness.

It should be noted that this application does not need to define which of the first node and the second node is the primary node and which is the secondary node.

In addition, the communication device in the first aspect may be a terminal device, or a chip provided in the terminal device, such as a baseband processing chip, or a system chip including a radio frequency circuit, which is not limited in this application.

In the second aspect, a system timing management method is provided. This method is applied to terminal equipment. The terminal device includes: a common storage area without power failure, a first communication unit and a second communication unit. The first communication unit is used to establish a communication connection of the first standard, and the second communication unit is used to establish a communication connection of the second standard. The system timing management method includes: when the first communication unit is in the awake state, acquiring the system timing of the first standard, and storing the system timing of the first standard in the common storage area without power failure. When the second communication unit is in the awake state and the first communication unit is in the sleep state, the system timing compensation value of the first mode is calculated according to the system timing of the first mode stored in the common storage area without powering down. According to the system timing of the first system stored in the common storage area without power-off and the system timing compensation value of the first system, the system of the first system is calculated when the second communication unit is in the awake state and the first communication unit is in the sleep state Time conversion value.

In a possible design method, the above system timing management method may further include: when the first communication unit is in the awake state and the second communication unit is in the sleep state, acquiring the system timing of the first standard, and setting the first standard The system is regularly stored in the public storage area without power down. When the second communication unit is in the awake state and the first communication unit is in the sleep state, the system timing of the second mode is acquired. Based on the conversion value of the system timing of the first mode and the system timing of the second mode, the system timing deviation between the first mode and the second mode is calculated.

In a possible design method, the foregoing system timing management method may further include: receiving a system timing measurement task. Among them, the system timing measurement task is used to measure the system timing deviation of the first system and the second system.

Optionally, the above system timing management method may further include: receiving a system timing measurement task. Among them, the system timing measurement task is used to measure the system timing deviation of the first system and the second system.

In a possible design method, the above system timing management method may further include: when the first communication unit is in the awake state again, sending the system timing deviation.

Optionally, the above system timing management method may further include: when the second communication unit is in the awake state this time, sending the system timing deviation of the first system and the second system.

In a third aspect, a communication device is also provided. The communication device includes a processor and a transceiver, and the processor is coupled with the transceiver and the memory. Memory is used to store computer programs. The processor is configured to execute the computer program stored in the memory, so that the communication device executes the system timing management method described in the second aspect or any possible implementation manner of the second aspect.

In a possible design, the communication device according to the third aspect includes one or more processors and multiple transceivers. The transceiver is used to support the communication device to communicate with other devices to realize the receiving and/or transmitting functions of the first communication unit and the second communication unit. For example, receiving the system timing measurement task sent by the first node, and sending the system timing deviation to the first node or the second node. The one or more processors are configured to support the communication device according to the third aspect to perform the corresponding function of the terminal device in the above system timing management method. For example, the second communication unit is controlled to calculate the system timing compensation value and the system timing conversion value of the first system when the first communication unit is in the sleep state.

Optionally, the communication device may further include one or more memories, the memory is coupled to the processor, and is used to store necessary program instructions and/or data of the communication device. The coupling of the memory and the processor means that there is a signal connection between the memory and the processor. The one or more memories may be integrated with the processor, or may be set separately from the processor, which is not limited in this application.

The communication device may be a smart phone or a wearable device, and the transceiver may be a transceiver circuit. Optionally, the transceiver may also be an input/output circuit or an interface.

The communication device may also be a communication chip, such as a baseband processing chip, or a system chip containing a radio frequency circuit. The transceiver may be an input/output circuit or an interface of the communication chip.

In another possible design, the communication device according to the third aspect includes a transceiver, a processor, and a memory. The processor is used to control the transceiver to send and receive signals, the memory is used to store a computer program, and the processor is used to run the computer program in the memory, so that the communication device performs any possible implementation as in the second aspect or the second aspect The system timing management method described in this manner.

According to a fourth aspect, a communication system is provided. The communication system includes: a communication device according to the first or third aspect, and a plurality of nodes, such as the first node and the second node described above.

According to a fifth aspect, there is provided a readable storage medium that stores programs or instructions, and when the programs or instructions run on a computer, the computer is executed as described in the second aspect or any possible implementation manner of the second aspect System timing management method.

According to a sixth aspect, a computer program product is provided, including computer program code, which, when the computer program code runs on a computer, causes the computer to perform system timing as described in the second aspect or any possible implementation manner of the second aspect Management methods.

BRIEF DESCRIPTION

1 is a schematic structural diagram of a communication system to which the system timing management method provided by this application is applicable;

2 is a schematic flowchart of a system timing management method;

3 is a schematic diagram of a scenario of a system timing management method;

4 is a schematic flowchart of a method for measuring a system timing deviation;

FIG. 5 is a schematic diagram of a scenario of a system timing deviation measurement method;

6 is a schematic flowchart of the system timing management method provided by the application;

7 is a schematic diagram of a scenario of a system timing management method provided by this application;

FIG. 8 is a schematic flowchart of a system timing deviation measurement method provided by this application;

9 is a schematic diagram of a scenario of a system timing deviation measurement method provided by this application;

10 is a schematic structural diagram 1 of a communication device provided by an embodiment of the present application;

11 is a second structural diagram of a communication device provided by an embodiment of the present application.

detailed description

The technical solution provided by the present application will be described in detail below with reference to the drawings.

The technical solutions of the embodiments of the present application can be applied to various wireless communication systems that can support dual connectivity. The dual connection includes a first connection and a second connection, which are respectively used for communication of a first standard between a terminal device and a first node, and communication of a second standard between a communication device and a second node.

It should be noted that, the first standard and the second standard may be wireless communication of different standards, or wireless communication of the same standard, which is not limited in the embodiments of the present application.

Exemplarily, the first standard may be LTE, and the second standard may be NR. Accordingly, the first communication unit and the first node support LTE, and the second communication unit and the second node support NR. Of course, the first standard may also be NR, and the second standard may also be LTE. Accordingly, the first communication unit and the first node support NR, and the second communication unit and the second node support LTE. In this scenario, the wireless communication system composed of the first node and the second node is a heterogeneous wireless communication system.

Exemplarily, the first standard and the second standard may both be LTE, or both may be NR. Correspondingly, the first communication unit and the first node, and the second communication unit and the second node only support one of LTE or NR. In this scenario, the wireless communication system composed of the first node and the second node is a single-standard wireless communication system.

Of course, the above two systems can also be wireless fidelity (Wi-Fi), narrow-band Internet of Things (NB-IoT, Narrow Band-Internet of Things), machine communication (MTC, Machine Type Communication), and future The communication standard, such as 6G, is not limited in the embodiments of the present application.

In addition, as shown in FIG. 1, the first node and the second node are two different base stations. It is easy to understand that the first node and the second node may also be different cells of the same base station (co-site deployment), such as different sectors of the same base station, which is not limited in this embodiment of the present application.

It should be noted that the first node and the second node may be connected by wired means, such as optical fiber or network cable, or may be connected by wireless means, which is not limited in the embodiments of the present application.

This application will present various aspects, embodiments, or features around a system that may include multiple devices, components, modules, and so on. It should be understood and understood that each system may include additional devices, components, modules, etc., and/or may not include all devices, components, modules, etc. discussed in conjunction with the drawings. In addition, a combination of these schemes can also be used.

In addition, in the embodiments of the present application, “examples” and “for example” are used as examples, illustrations or explanations. Any embodiment or design described in this application as "example" or "for example" should not be construed as being more preferred or advantageous than other embodiments or design. To be precise, the term usage example is intended to present concepts in a concrete way.

In the embodiments of the present application, "of", "corresponding (relevant)" and "corresponding" may sometimes be used together. It should be pointed out that when the difference is not emphasized, what they want to express The meaning is consistent.

The network architecture and business scenarios described in the embodiments of the present application are to more clearly explain the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. With the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

It should be pointed out that the technical solutions provided by the embodiments of the present application can also be applied to other wireless communication systems supporting dual connectivity, such as LTE-LTE system, NR-NR system, NR-6G system, etc., which will not be repeated here.

In order to facilitate understanding of the embodiments of the present application, the wireless communication system shown in FIG. 1 is first taken as an example to describe in detail the wireless communication system applicable to the embodiments of the present application. As shown in FIG. 1, the wireless communication system includes a terminal device, a first node, and a second node, such as eNB and gNB. Wherein, the above terminal device may be connected to the first node and/or the second node through a wireless air interface, so as to receive network services. The above-mentioned first node and second node are mainly used to implement wireless physical layer functions, resource scheduling and wireless resource management, wireless access control, and mobility management functions.

Wherein, the first node and the second node may be an access network device with wireless transceiver function or a chip provided in the access network device. The access network equipment includes but is not limited to: access points (access points (AP) in the Wi-Fi system, such as home wireless routers, wireless relay nodes, wireless backhaul nodes, transmission points (transmission and reception points, TRP) Or transmission point (TP), evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), node B (Node B, NB), base station controller (BSC) 1. Base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU), or 5G, such as NR, gNB in the system , Or, transmission point (TRP or TP), one or a group of base stations in a 5G system (including multiple antenna panels), or it can also be a node that constitutes a gNB or transmission point, such as a baseband unit (BBU) , Or, distributed unit (DU), etc.

In some deployments, the first node and the second node may include a centralized unit (CU) and a DU. The first node and the second node may further include a radio unit (RU). CU implements some functions of gNB, DU implements some functions of gNB, for example, CU implements radio resource control (RRC), packet data convergence layer protocol (packet data convergence protocol, PDCP) layer functions, DU implements wireless chain Road control (radio link control, RLC), media access control (media access control, MAC) and physical (physical, PHY) layer functions. Since the information of the RRC layer will eventually become the information of the PHY layer, or it is transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling or PHCP layer signaling, can also It is considered to be sent by DU, or sent by DU+RU. It can be understood that the network device may be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU can be divided into network devices in the access network RAN, and can also be divided into network devices in the core network CN, which is not limited herein.

The above-mentioned terminal device may be a user device with a wireless transceiver function or a chip provided in the user device. The above terminal equipment may also be referred to as a station (STA), user equipment (UE), access terminal, subscriber unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal , Wireless communication equipment, user agents or user devices. The above terminal devices include but are not limited to: mobile phones, tablet computers, computers with wireless transceiver functions, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial Wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grids, transportation safety The wireless terminal in the smart city, the wireless terminal in the smart city (smart city), the wireless terminal in the smart home (smart home), sensor devices, such as monitoring terminals, etc.

It should be understood that FIG. 1 is only a simplified schematic diagram for ease of understanding and examples. The communication system may also include other nodes or other terminal devices, which are not shown in FIG. 1.

The following uses the first communication unit and the first node of the terminal device shown in FIG. 1 and the first standard as LTE as an example to introduce the existing system timing management method in detail.

FIG. 2 is a schematic flowchart of an existing system timing management method. As shown in FIG. 2, the method may include S201-S205:

S201, the terminal device is powered on, and the public slow counter in its always-on area is started.

For example, the terminal device may maintain a public slow counter with a frequency of 32.768 kilohertz (KHz) in its non-power-off zone.

It should be noted that the length of time corresponding to the maximum count value of the common slow counter is greater than the length of one system frame period of the first standard.

For example, for LTE, one system frame period includes 1024 radio frames (frames), one radio frame is 10 milliseconds (milisecond, ms), and one system frame period is 10240 ms. Correspondingly, the above public slow counter is a counter with a technical frequency of 32.768KHz. Assuming that it uses a clock cycle plus 1 to start counting from 0, then a system frame period corresponding to the public slow counter 10240*32.768= 335545 clock cycles, the count period of the public slow counter can be set to a count value much greater than 335545, for example, the above public slow counter with a frequency of 32.768KHz can have a bit width of 32 bits, and the count period is 2 counters of 32 power cycles.

S202, the terminal device wakes up the first communication unit, and establishes a communication connection (first connection) with the first mode of the first node.

The first communication unit may be a modem used in the terminal device to support the first standard. The modem may include only the baseband processor, or it may include both the baseband processor and the radio frequency circuit.

S203. During the wake-up of the first communication unit, the terminal device controls the first communication unit to acquire the system timing of the first standard and the count value of the common slow counter, and to count the timing between the system timing of the first standard and the common slow counter Mapping relations.

The above-mentioned timing mapping relationship may be the number of basic time units of the first standard included in one clock cycle of the common slow counter, or may be the number of sampling clock cycles of the first communication unit.

Illustratively, the LTE protocol stipulates that the basic time unit is Ts, and the length of one Ts is: 1/(15000x2048) seconds, then one clock cycle of a 32.768KHz counter includes [(1/32768)]/[ 1/(15000x2048)] = 937.5 Ts.

Exemplarily, the clock period of the sampling clock needs to be less than or equal to 1 Ts. For example, the clock frequency of the sampling clock may be 30.72 megahertz (magaherts, MHz) or 61.44 MHz or 122.88 MHz, usually an integer multiple of 30.72 MHz. As shown in FIG. 3, assuming that the clock frequency of the sampling clock is 61.44MHz, a total of one clock cycle of a 32.768KHz counter includes [(1/32768)]/[1/(61440000)]=1875 sampling clock cycles.

In practical applications, the terminal device may calculate the count value of the public slow counter when the first communication unit wakes up again according to the timing mapping relationship.

Exemplarily, as shown in FIG. 3, it is assumed that the count value of the common slow counter at this time of wake-up is 1000, the sampling clock of the first communication unit is a clock signal of 61.44MHz, and the wake-up period corresponding to the first communication unit If it is 80ms, the count value of the corresponding common slow counter when the first communication unit wakes up next time may be: 1000+80ms*61.44MHz/1875=3621.

S204, the terminal device controls the first communication unit to enter a sleep state, and controls the common slow counter to continue counting.

S205. When the actual count value of the common slow counter reaches the count value corresponding to the next wake-up of the first communication unit, the terminal device wakes up the first communication unit again.

Exemplarily, as shown in FIG. 3, when the count value of the common slow counter is 3621, the terminal device wakes up the first communication unit again.

In practical applications, the above terminal device may also be configured with a second communication unit. The second communication unit is used to establish a second-standard communication connection (second connection) between the terminal device and the second node, and the second communication unit may also use the same wake-sleep mechanism as the first communication unit in order to achieve Power saving purpose.

It is easy to understand that when the same terminal device is configured with the above two communication units and there are two types of communication connections with the two nodes, the terminal device needs to report the system timing deviation between the above two standards to the network side, as reported Give the main node (main node, MN) of the above two nodes, and the main node informs the secondary node (secondary node, SN), so that the main node and the secondary node coordinate with each other in the process of communicating with the same terminal device to avoid conflicts .

It is easy to understand that the wake-up period of the terminal device in the first mode may be different from the wake-up period in the second mode, for example, one is 80 ms and the other is 640 ms. Moreover, the system timings of the above two systems may not be synchronized. Even if the wake-up periods of the above two systems are the same, there may be a case where the above two communication units cannot wake up at the same time.

However, in the process of measuring the above system timing deviation, the terminal device needs to wake up the first communication unit and the second communication unit at the same time, lock the first system timing and the second system timing, and then calculate and report the system timing deviation . If the terminal device is controlling a communication unit to execute the timing deviation measurement task, and the wake-up cycle according to another standard, the other communication unit should be in a sleep state, but in order to complete the system timing deviation measurement task, the terminal device must additionally wake up another A communication unit, which leads to increased power consumption of the terminal device.

4 is a schematic flowchart of a method for measuring a system timing deviation. FIG. 5 is a schematic diagram of the system timing deviation measurement method shown in FIG. 4.

As shown in FIG. 4, assuming that the first node is the primary node and the second node is the secondary node, the system timing deviation measurement method includes S401-S404:

S401. When the first communication unit is in the awake state and the second communication unit is in the sleep state, the terminal device receives the system timing deviation measurement task delivered by the first node.

The system timing deviation measurement task is used to measure the timing deviation between the system timing of the first mode and the system timing of the second mode observed on the terminal device side.

Exemplarily, as shown in FIG. 5, at time t1, the first communication unit is in the awake state and the second communication unit is in the sleep state, and the terminal device receives the system timing deviation measurement task delivered by the first node through the first communication unit .

S402. The terminal device wakes up the second communication unit.

Exemplarily, as shown in FIG. 5, at time t2, the terminal device wakes up the second communication unit.

S403, when the first communication unit and the second communication unit are in the awake state, the terminal device locks the system timing of the first mode and the system timing of the second mode, and calculates the system timing deviation between the first mode and the second mode .

Exemplarily, as shown in FIG. 5, at time t3, the terminal device controls the first communication unit and the second communication unit to lock the system timing of the first system and the system timing of the second system.

S404. The terminal device reports the system timing deviation between the first standard and the second standard to the first node.

Exemplarily, as shown in FIG. 5, at time t4, the terminal device reports the above system timing deviation to the first node.

In response to the above problems, embodiments of the present application provide a system timing management method. The following is a detailed description with reference to the drawings.

FIG. 6 is a schematic flowchart of a system timing management method provided by an embodiment of the present application, and can be applied to the terminal device shown in FIG. 1. The terminal device includes a common storage area that does not power down, a first communication unit, and a second communication unit. The first communication unit is used to establish a communication connection of the first standard, and the second communication unit is used to establish a communication connection of the second standard.

As shown in FIG. 6, the method may include S601-S603:

S601. When the first communication unit is in the awake state, the terminal device acquires the system timing of the first standard, and stores the system timing of the first standard into the non-power-off public storage area.

Wherein, the system timing of the first standard mentioned above refers to the system timing of the first standard observed by the first communication unit of the terminal device, rather than the system timing at the first node on the network side. The first communication unit needs to complete the uplink and downlink synchronization of the first standard between the terminal device and the first node according to the system timing, and then complete the communication of the first standard between the terminal device and the first node.

The foregoing acquiring the system timing of the first standard may be that the terminal device controls the first communication unit to latch the system timing of the first standard. Exemplarily, the terminal device may store the captured system of the first standard in the non-power-off area of the terminal device at regular intervals.

It should be noted that the terminal device may also record the timing mapping relationship between the local timing maintained by the first communication unit and the system timing of the first standard when the first communication unit wakes up. The timing mapping relationship may be the number of basic time units of the first standard included in one clock cycle of the above local timing, or may be the clock of the sampling clock used by the first communication unit included in one clock cycle of the above local timing The number of cycles.

Exemplarily, the above local timing may be the above local counter located in a non-power-off zone with a clock frequency of 32.768 KHz, the above basic time unit may be Ts in LTE and NR, the sampling clock may be located in the first communication unit, and the clock period A clock equal to Ts, such as a clock with a sampling frequency of 30.72MHz, or a clock whose clock period is an integral power of 2 of Ts, such as a clock with a sampling frequency of 61.44MHz or 122.88MHz.

It is easy to understand that the timing mapping relationship can be one of the following: a 32.768KHz clock cycle can contain 937.5 30.72MHz clock cycles (Ts), or 1875 61.44MHz clock cycles, or 3750 122.88MHz clocks cycle.

Exemplarily, as shown in FIG. 7, during the time t1-t2, the first communication unit is woken up, and the terminal device may control the first communication unit to capture the count value C _{1 of the} above-mentioned common slow counter at t1 and t2 And C ₂ , and the number N1 of Ts included in the period t1-t2 is counted, and the above timing mapping relationship C _n1 is calculated according to the following formula:

C _n1 =N ₁ /(C ₂ -C ₁ ), where C ₂ >C ₁ ; or,

C _n1 =N ₁ /(C ₂ +CC ₁ ), where C ₂ <C ₁ ;

Among them, C is the counting cycle of the slow local counter.

When the above timing mapping relationship is the number of clock cycles of the sampling clock included in one clock cycle of 32.768 KHz, the calculation method is similar to FIG. 7 and will not be repeated here.

The count value of the public slow counter, the system timing of the first mode, and the timing mapping relationship may be stored in the non-power-off area of the terminal device when the first communication unit enters the sleep state from the wake-up state.

S602: When the second communication unit is in the awake state and the first communication unit is in the sleep state, the terminal device controls the second communication unit to calculate the system of the first standard according to the system timing of the first standard stored in the common storage area without power-off Timing compensation value.

S603. According to the system timing of the first system stored in the common storage area without power-off and the system timing compensation value of the first system, calculate the first system when the second communication unit is in the awake state and the first communication unit is in the sleep state The system's regular conversion value.

Specifically, as shown in FIG. 7, the terminal device wakes up the second communication unit at time t3, latches the count value c3 of the common slow counter at time t3, and controls the second communication unit to read the common slow The count value of the speed counter, the system timing of the first system and the timing mapping relationship are calculated according to the following formula: the compensation value of the system timing of the first system at time t3, and then the converted value of the system timing of the first system at time t3:

T _t3 =T _t1 +(C ₃ -C ₁ )*C _n1 , where C ₃ >C ₁ ; or,

T _t3 =T _t1 +(C ₃ +CC ₁ )*C _n1 , where C ₃ <C ₁ ;

Where T _t3 is the converted value of the system timing value of the first system at time t3, T _t1 is the system timing value of the first system latched at time t1, and C is the counting period of the above-mentioned common slow counter, (C _3- C ₁ )*C _n1 or (C ₃ +CC ₁ )*C _n1 is the compensation value of the system timing of the first system during t1-t3.

Of course, in practical applications, the system timing of the first system may be system timing at multiple time granularities. For example, for LTE and NR, system timing includes system timing at three time granularities: system frame period, radio frame, and subframe. Correspondingly, the compensation value and the conversion value of the system timing also include the compensation value and the conversion value at the above three time granularities.

Exemplarily, the system timing value of the first standard includes a system frame number (SFN), a subframe number within a radio frame, and an intra-subframe offset of the first standard at a certain moment. Correspondingly, the above S602 and S603 can be specifically implemented as:

The terminal device controls the second communication unit to calculate the converted value of the system frame number, the converted value of the subframe number, and the converted value of the offset within the subframe according to the following first formula set or second formula set;

Among them, the first formula set includes the following formulas:

F _n1,3 ={F _n1,1 +[T _n1,1 +S _n1,1 *T _n1,sfrm +(C ₃ -C ₁ )*C _n1 ]/T _n1,frm }%F _n1,sfn ;

S _n1,3 ={[T _n1,1 +S _n1,1 *T _n1,sfrm +(C ₃ -C ₁ )*C _n1 ]/T _n1,sfrm }%S _n1,frm ;

T _n1,3 =[T _n1,1 +S _n1,1 *T _n1,sfrm +(C ₃ -C ₁ )*C _n1 ]% T _n1,sfrm ; where C ₃ >C ₁ ;

And, the second formula set includes the following formulas:

F _n1,3 ={F _n1,1 +[T _n1,1 +S _n1,1 *T _n1,sfrm +(C ₃ +C _max -C ₁ )*C _n1 ]/T _n1,frm }%F _{n1 ,sfn} ;

S _n1,3 ={[T _n1,1 +S _n1,1 *T _n1,sfrm +(C ₃ +C _max -C ₁ )*C _n1 ]/T _n1,sfrm }%S _n1,frm ;

T _n1,3 =[T _n1,1 +S _n1,1 *T _n1,sfrm +(C ₃ +C _max -C ₁ )*C _n1 ]% T _n1,sfrm ; where C ₃ <C ₁ , and C _max is the number of clock cycles included in one round of counting of the common slow counter.

Among them, F _n1,3 , S _n1,3 and T _n1,3 are the system frame number conversion value, subframe number conversion value, and subframe offset conversion value of the first standard at time t3, F _n1,1 , S _n1,1 and T _{n1,1 are} in turn the system frame number, subframe number, and intra-subframe offset of the first system at time t1.

T _n1,sfrm is the number of basic time units included in a subframe of the first standard, T _n1,frm is the number of basic time units included in a radio frame of the first standard, S _n1,frm is a radio frame of the first standard The number of included subframes, and T _n1,frm = T _n1,sfrm *S _n1,frm , F _n1,sfn are the number of wireless frames included in one system frame period of the first standard. For LTE and NR, the basic time unit is Ts, _{and the values of the} above T _n1,sfrm , T _n1,frm , S _n1,frm , F _n1,sfn are: 30720 Ts, 307200 Ts, 10 subframes, 1024 Radio frames.

C ₁ and C ₃ are the count values of the common slow counter at time t1 and time t3 in sequence, and C _n1 is the number of basic time units of the first standard included in one clock cycle of the common slow counter.

According to the system timing management method provided by the present application, the second communication unit can calculate the time when the first communication unit is in the sleep state according to the system timing of the first system that is acquired and stored in the common storage area where the first communication unit is in the wake-up state The system timing compensation value of the first mode, and then calculating the system timing conversion value of the first mode when the first communication unit is in a sleep state. That is to say, even if the first communication unit is in the sleep state, the purpose of maintaining the system timing of the first mode can be continuously maintained, so as to provide a reference for the second communication unit to implement the service scheduling and resource configuration process of the second mode, which can improve Shared resource utilization and work efficiency, and reduce power consumption.

For example, when the first communication unit is in a sleep state, the second communication unit can use the radio resources allocated to the first standard to complete the communication of the second standard, improve the utilization rate of the wireless resources, thereby improving the communication efficiency, and can reduce the probability of resource conflict .

In a possible design method, the second communication unit may also use the above-mentioned system timing management method of the first mode, which is used to solve the problem of measuring the system timing deviation of the two modes as shown in FIG. 4 and FIG. 5 and must additionally wake up Another communication unit that is supposed to be in the sleep state, which leads to the problem of higher power consumption of the terminal device. The following is a detailed description with reference to FIGS. 8 and 9.

FIG. 8 is another system timing management method provided by an embodiment of the present application, which is used to measure a system timing deviation between two systems. 9 is a schematic diagram of an application scenario of the system timing management method shown in FIG. 8.

As shown in FIG. 8, the system timing management method includes S801-S805:

S801. When the first communication unit is in the awake state and the second communication unit is in the sleep state, the terminal device acquires the system timing of the first standard and stores the system timing of the first standard in the common storage area without power failure.

Specifically, as shown in FIG. 9, when the first communication unit is in the awake state and the second communication unit is in the sleep state, such as time t1 or t2, the system timing of the first standard is captured, and the common slow counter A count value and the timing mapping relationship between the system timing of the first system and the common slow counter in the period t1-t2 are counted and stored in the non-power-off area of the terminal device.

S802. When the second communication unit is in the awake state and the first communication unit is in the sleep state, the terminal device controls its second communication unit to calculate the system timing compensation value of the first standard.

S803: Calculate the system timing conversion value of the first mode when the second communication unit is in the awake state and the first communication unit is in the sleep state according to the system timing of the first mode and the system timing compensation value of the first mode .

Specifically, as shown in FIG. 9, when the second communication unit is in the awake state and the first communication unit is in the sleep state, as at time t1, the system timing of the first system is obtained, and the first count of the common slow counter is obtained Value, and the timing mapping relationship between the system timing of the first standard and the common slow counter, calculate the timing compensation value of the system timing of the first standard during t1-t3, and then calculate the first system timing conversion value at time t3. For the specific calculation method, please refer to the method and text description shown in FIG. 7, which will not be repeated here.

S804. When the second communication unit is in the awake state and the first communication unit is in the sleep state, the terminal device acquires the system timing of the second mode.

Specifically, as shown in FIG. 9, when the second communication unit is in the awake state and the first communication unit is in the sleep state, the terminal device controls the second communication unit to capture the system timing of the second system at time t3.

S805. The terminal device calculates the system timing deviation between the first system and the second system according to the system timing conversion value of the first system and the system timing of the second system.

Specifically, as shown in FIG. 9, assuming that the frame format of the first standard and the second standard are the same, the terminal device controls the second communication unit to calculate the first standard and the second standard at time t3 according to the following third formula set System frame deviation, subframe deviation and subframe deviation.

Among them, the third formula set includes the following formulas:

F _n1,n2 =[(F _n1,3 -F _n2,3 )*T _frm +(S _n1,3 -S _n2,3 )*T _sfrm +(T _n1,3 -T _n2,3 )]/T _frm ;

S _n1,n2 = {[(F _n1,3 -F _n2,3 )*T _frm +(S _n1,3 -S _n2,3 )*T _sfrm +(T _n1,3 -T _n2,3 )]/ T _sfrm }%S _frm ;

T _n1,n2 =[(F _n1,3 -F _n2,3 )*T _frm +(S _n1,3 -S _n2,3 )*T _sfrm +(T _n1,3 -T _n2,3 )]%T _sfrm ;

Among them, F _{n1, n2} , S _{n1, n2} and T _{n1, n2} are the system frame deviation, subframe deviation and intra-subframe deviation between the first standard and the second standard at time t3, and T _sfrm is the first standard and The number of basic time units included in one subframe of the second system, T _frm is the number of basic time units included in one radio frame of the first system and the second system, and S _frm is included in one radio frame of the first system and the second system The number of subframes of, and T _frm =T _sfrm *S _frm . For LTE and NR, the basic time unit is Ts, and the values of T _sfrm , T _frm , and S _frm are: 30720 Ts, 307200 Ts, and 10 subframes in this order.

It should be noted that the values of F _{n1, n2} , S _{n1, n2} and T _{n1, n2} may be greater than 0, or may be less than 0 or equal to 0. In addition, the above F _{n1, n2} , S _{n1, n2} and T _{n1, n2} may also use the difference between the system timing of the second system and the system timing of the first system, which will not be repeated here.

According to the system timing management method provided by the present application, the second communication unit can calculate and calculate the system timing of the first system according to the first system when the first communication unit is in the awake state and the second communication unit is in the sleep state and stored in the common storage area without power failure When the first communication unit is in the sleep state, the system timing compensation value of the first mode is used to calculate the system timing conversion value of the first mode when the second communication unit is in the awake state and the first communication unit is in the sleep state. The system timing conversion value and the system timing of the second system can be used to calculate the system timing deviation between the first system and the second system. This can avoid the need to wake up another process during the measurement of the system timing deviation between the first system and the second system. A communication unit that should maintain a deep sleep state can reduce the power consumption of the communication device during the measurement of the system timing deviation between the first mode and the second mode.

It should be noted that before performing S801, the system timing deviation measurement method shown in FIG. 8 may further include step 1 or step 2:

Step 1: When the first communication unit is in the awake state, the terminal device receives the system timing measurement task delivered by the first node.

Step 2: When the second communication unit is in the awake state, the terminal device receives the system timing measurement task delivered by the second node.

The system timing measurement task is used to instruct the terminal device to measure and report the system timing deviation between the system timing of the first mode and the system timing of the second mode.

That is to say, in the embodiments of the present application, there are two ways of delivering the system timing measurement task:

Delivery method 1: When the first communication unit is in the wake-up state, the delivery is delivered by the first node.

Delivery method two: when the second communication unit is in the awake state, it is delivered by the second node.

It is easy to understand that, as shown in FIG. 9, after executing S805, the terminal device may control the second communication unit to report the above system timing deviation to the second node during the wake-up of the second communication unit, or under the first communication unit During a wake-up, the first communication unit is controlled to report the above system timing deviation to the first node.

It should be noted that the node that receives the system timing deviation may be the node that delivers the system timing measurement task, or it may not be the node that delivers the system timing measurement task. That is to say, in the embodiments of the present application, there are the following two ways to report the system timing deviation:

Reporting method 1: Report to the first node.

Reporting method 2: Report to the second node.

It should be noted that the first node and the second node may be any combination of the following nodes:

Combination 1: The first node is the primary node, and the second node is the secondary node.

Combination 2: The second node is the primary node, and the first node is the secondary node.

That is to say, in the embodiment of the present application, the system timing measurement task may be delivered by the master node, or may be delivered by the secondary node. Correspondingly, the terminal device can report the system timing deviation to the master node, and can also report the system timing deviation to the secondary node, which is not limited in this application.

In summary, in the embodiments of the present application, there are a total of the following four reporting methods:

Delivery reporting method 1: The master node delivers system timing measurement tasks and reports system timing deviation to the master node.

Second reporting method: The secondary node delivers the system timing measurement task and reports the system timing deviation to the secondary node.

Delivery reporting method 3: The master node delivers the system timing measurement task, and reports the system timing deviation to the secondary node.

Delivery reporting method 4: The secondary node delivers the system timing measurement task and reports the system timing deviation to the primary node.

For the above-mentioned delivery reporting methods 1 and 2, the terminal device only needs to report the system timing deviation to the node sending the timing measurement task during the next wake-up of the communication unit receiving the system timing measurement task, and does not require another node to receive Forward the system timing deviation reported by the terminal equipment, which simplifies the system timing deviation reporting process. It is applicable to the absence of an ideal backhaul interface between the first node and the second node. For example, there is no wired connection such as optical fiber and network cable, but only a wireless connection. Scenarios, you can avoid the adverse impact on the reliability of the reporting system timing deviation due to the uncertainty of the transmission delay between the nodes.

For the third and fourth reporting methods, the terminal device can receive the system timing measurement task from one node during the wake-up of one communication unit, and complete the system timing deviation measurement during the wake-up of another communication unit and immediately report to the other node, and then The system timing deviation forwarded and reported by another node is more suitable for the ideal backhaul interface between the two nodes. If there is a wired connection such as optical fiber or network cable, it can be reported immediately after the system timing deviation measurement is completed without waiting. The communication unit receiving the system timing measurement task reports again when it wakes up again, which can save the waiting time for reporting the system timing deviation (at least one wake-up period, such as 40ms, 80ms, 640ms, etc.), and can improve the timeliness of the reported system timing deviation.

The system timing management method of the embodiment of the present application has been described in detail above with reference to FIGS. 6-9. The communication device according to the embodiment of the present application will be described in detail below with reference to FIGS. 10 and 11.

FIG. 10 is a communication device provided by an embodiment of the present application, for performing the system timing management method described in the foregoing method embodiment.

As shown in FIG. 10, the communication device 1000 includes: a common storage area 1003 that does not power down, a first communication unit 1001, and a second communication unit 1002. The first communication unit 1001 is used to establish a first standard communication connection, and the second communication unit 1002 is used to establish a second standard communication connection.

Wherein, the first communication unit 1001 is used to acquire the system timing of the first standard when the first communication unit 1001 is in the awake state, and store the system timing of the first standard in the common storage area 1003 that does not power down.

The second communication unit 1002 is used to calculate the first standard according to the system timing of the first standard stored in the common storage area 1003 when the second communication unit 1002 is in the awake state and the first communication unit 1001 is in the sleep state System timing compensation value.

The second communication unit 1002 is also used to calculate the first communication when the second communication unit 1002 is in the awake state based on the system timing of the first system stored in the common storage area 1003 and the system timing compensation value of the first system When the unit 1001 is in the sleep state, the system timing conversion value of the first standard.

In a possible design, the first communication unit 1001 is also used to acquire the system timing of the first standard when the first communication unit 1001 is in the awake state and the second communication unit 1002 is in the sleep state, and the first standard The system is stored in the public storage area 1003 which will not power down regularly.

The second communication unit 1002 is also used to acquire the system timing of the second mode when the second communication unit 1002 is in the awake state and the first communication unit 1001 is in the sleep state.

The second communication unit 1002 is also used to calculate the system timing deviation between the first system and the second system based on the system timing conversion value of the first system and the system timing of the second system.

In a possible design, the first communication unit 1001 is also used to receive system timing measurement tasks. Among them, the system timing measurement task is used to measure the system timing deviation of the first system and the second system.

Optionally, the second communication unit 1002 is also used to receive system timing measurement tasks. Among them, the system timing measurement task is used to measure the system timing deviation of the first system and the second system.

In a possible design, the first communication unit 1001 is also used to send the system timing deviation when it is in the awake state again.

Optionally, the second communication unit 1002 is further configured to send the system timing deviation of the first system and the second system when it is in the wake state this time.

In summary, in this application, there are a total of the following four reporting methods for system timing measurement task delivery and system timing deviation reporting: the first node delivers and reports to the first node; the second node delivers and reports to The second node reports; the first node sends the report to the second node; the second node sends the report to the first node.

For the first two methods, it is necessary to wait for the communication unit receiving the system measurement task to report the next time it wakes up. It is applicable to the absence of an ideal backhaul interface between the first node and the second node, such as optical fiber and network cable, but only the wireless interface. In the scenario, there is no need for another node to forward the system timing deviation, and the interaction process is relatively simple.

For the latter two methods, there is no need to wait for the communication unit that receives the system timing measurement task from one node to wake up next time. It only needs the other communication unit to report to the other node after the system timing deviation calculation is completed, and the other node It is sufficient to forward the system timing deviation, which is suitable for scenarios where there is an ideal backhaul interface between the first node and the second node, such as optical fiber and network cable, and the data transmission delay between the two nodes is small, and the system timing deviation is not reported. Need to wait, better timeliness.

It should be noted that this application does not need to define which of the first node and the second node is the primary node and which is the secondary node.

In addition, the communication device 1000 may be a terminal device or a chip provided inside the terminal device, such as a baseband processing chip, or a system chip including a radio frequency circuit, which is not limited in this application.

FIG. 11 is another communication device provided by an embodiment of the present application, and can be applied to the communication system shown in FIG. 1.

As shown in FIG. 11, the communication device 1100 includes a processor 1101 and a transceiver 1102.

Among them, the processor 1101 is coupled to the transceiver 1102 and the memory 1103; the memory 1103 is used to store a computer program.

The processor 1101 is configured to execute the computer program stored in the memory 1103, so that the communication device 1100 performs the function of the terminal device in the system timing management method shown in FIG. 6 or FIG.

Exemplarily, the processor 1101 is coupled to the transceiver 1102 and the memory 1103, and the processor 1101 may be connected to the transceiver 1102 and the memory 1103 through the bus 1104.

In one possible design, the communication device 1100 includes one or more processors and one or more transceivers. The one or more processors are configured to support the communication device 1100 to perform the corresponding function of the terminal device in the above system timing management method. For example, the second communication unit is controlled to calculate the system timing compensation value and the conversion value of the first system, and the system timing deviation between the first system and the second system. The transceiver is used to support the communication device 1100 to communicate with other devices to implement receiving and/or sending functions. For example, receiving system timing measurement tasks, or reporting system timing deviations.

Optionally, the communication device 1100 may further include one or more memories, the memory is coupled to the processor, and is used to store program instructions and/or data necessary for the communication device 1100. The one or more memories may be integrated with the processor, or may be set separately from the processor, which is not limited in this application.

The communication device 1100 may be a smart phone or a wearable device, etc., and the transceiver may be a transceiver circuit. Optionally, the transceiver may also be an input/output circuit or an interface.

The communication device 1100 may also be a communication chip. The transceiver may be an input/output circuit or an interface of the communication chip.

In another possible design, the communication device 1100 includes a transceiver, a processor, and a memory. The processor is used to control the transceiver to send and receive signals, the memory is used to store a computer program, and the processor is used to run the computer program in the memory, so that the communication device 1100 executes the terminal in the system timing management method shown in FIG. 5 or FIG. 7 System timing management method completed by equipment.

The present application provides a communication system, which includes the above-mentioned communication device, and a plurality of nodes, such as the above-mentioned first node and second node.

The present application provides a readable storage medium that stores programs or instructions. When the programs or instructions run on the computer, the computer is allowed to execute the system timing management method shown in FIG. 6 or FIG. 8.

The present application provides a computer program product, including computer program code. When the computer program code runs on a computer, the computer is allowed to execute the system timing management method shown in FIG. 6 or FIG. 8.

It should be understood that the processor in the embodiments of the present application may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and dedicated integration Circuit (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electronically Erase programmable EPROM (EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (random access memory, RAM) are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (DRAM), synchronous dynamic random access Access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data Srate, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory Take memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DRRAM).

The above embodiments can be implemented in whole or in part by software, hardware (such as a circuit), firmware, or any other combination. When implemented using software, the above-described embodiments may be fully or partially implemented in the form of computer program products. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions according to the embodiments of the present application are generated. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmission to another website, computer, server or data center via wired (eg infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more collections of available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium may be a solid state drive.

It should be understood that the term "and/or" in this article is merely an association relationship describing the associated objects, and indicates that there may be three relationships, for example, A and/or B, which may indicate: A exists alone, and A and B exist There are three cases of B alone, where A and B can be singular or plural. In addition, the character “/” in this article generally indicates that the related object is a “or” relationship, but may also indicate a “and/or” relationship. For details, please refer to the context.

In this application, "at least one" refers to one or more, and "multiple" refers to two or more. "At least one of the following" or a similar expression refers to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one item (a) in a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be a single or multiple .

It should be understood that in various embodiments of the present application, the size of the sequence numbers of the above processes does not mean that the execution order is sequential, and the execution order of each process should be determined by its function and inherent logic, and should not correspond to the embodiments of the present application The implementation process constitutes no limitation.

Persons of ordinary skill in the art may realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and conciseness of the description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

The above is only the specific implementation of this application, but the scope of protection of this application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (15)

A communication device, comprising: a common storage area without power-off, a first communication unit and a second communication unit; the first communication unit is used to establish a communication connection of a first standard, and the second communication unit Used to establish a communication connection of the second standard; where, The first communication unit is configured to acquire the system timing of the first standard and store the system timing of the first standard into the non-power-off public storage when the first communication unit is in the awake state Area; The second communication unit is configured to, when the second communication unit is in the awake state and the first communication unit is in the sleep state, according to the system timing of the first standard stored in the non-power-off common storage area To calculate the system timing compensation value of the first standard; The second communication unit is also used to calculate the second communication unit according to the system timing of the first system stored in the non-power-off common storage area and the system timing compensation value of the first system When in the awake state and the first communication unit is in the sleep state, the system timing conversion value of the first standard. The communication device according to claim 1, characterized in that The first communication unit is also used to obtain the system timing of the first mode when the first communication unit is in the awake state and the second communication unit is in the sleep state, and to The system is regularly stored in the public storage area without power down; The second communication unit is further configured to acquire the system timing of the second standard when the second communication unit is in the awake state and the first communication unit is in the sleep state; The second communication unit is further configured to calculate a system timing deviation between the first system and the second system based on the system timing conversion value of the first system and the system timing of the second system. The communication device according to claim 2, wherein: The first communication unit is further used to receive a system timing measurement task; wherein, the system timing measurement task is used to measure a system timing deviation between the first standard and the second standard. The communication device according to claim 2, wherein: The second communication unit is also used to receive a system timing measurement task; wherein the system timing measurement task is used to measure a system timing deviation between the first standard and the second standard. The communication device according to any one of claims 2-4, characterized in that The first communication unit is also used to send the system timing deviation when it is in the awake state again. The communication device according to any one of claims 2-4, characterized in that The second communication unit is also used to send the system timing deviation of the first system and the second system when it is in the wake state this time. A system timing management method, characterized by being applied to a terminal device, the terminal device comprising: a common storage area without power-off, a first communication unit and a second communication unit; wherein the first communication unit is used to establish A communication connection of a first standard, and the second communication unit is used to establish a communication connection of a second standard; The system timing management method includes: When the first communication unit is in the awake state, acquire the system timing of the first standard, and store the system timing of the first standard in the non-power-off public storage area; When the second communication unit is in the awake state and the first communication unit is in the sleep state, the system of the first standard is calculated according to the system timing of the first standard stored in the non-power-off common storage area Timing compensation value; Calculate the first communication unit when the second communication unit is in the awake state according to the system timing of the first standard stored in the non-power-off common storage area and the system timing compensation value of the first standard When in the sleep state, the system of the first standard regularly converts the value. The system timing management method according to claim 7, further comprising: When the first communication unit is in the awake state and the second communication unit is in the sleep state, the system timing of the first standard is acquired, and the system timing of the first standard is stored in the non-power-off common Storage area When the second communication unit is in the awake state and the first communication unit is in the sleep state, acquiring the system timing of the second standard; The system timing deviation between the first system and the second system is calculated according to the system timing conversion value of the first system and the system timing of the second system. The system timing management method according to claim 8, further comprising: Receiving a system timing measurement task; wherein the system timing measurement task is used to measure the system timing deviation of the first standard and the second standard. The system timing management method according to claim 8, further comprising: Receiving a system timing measurement task; wherein the system timing measurement task is used to measure the system timing deviation of the first standard and the second standard. The system timing management method according to any one of claims 8 to 10, further comprising: When the first communication unit is in the awake state again, the system timing deviation is sent. The system timing management method according to any one of claims 8 to 10, further comprising: When the second communication unit is in the awake state this time, the system timing deviation of the first standard and the second standard is sent. A communication device, comprising: a processor and a transceiver, the processor is coupled to the transceiver and the memory; The memory is used to store computer programs; The processor is configured to execute a computer program stored in the memory, so that the communication device executes the system timing management method according to any one of claims 7-12. A readable storage medium, characterized in that a program or instruction is stored, and when the program or instruction runs on a computer, the computer is allowed to perform the system timing management according to any one of claims 7-12 method. A computer program product, characterized in that it includes computer program code, and when the computer program code runs on a computer, it causes the computer to execute the system timing management method according to any one of claims 7-12.

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