WO2024067038A1

WO2024067038A1 - Communication method and communication apparatus

Info

Publication number: WO2024067038A1
Application number: PCT/CN2023/117983
Authority: WO
Inventors: 铁晓磊; 周涵; 薛祎凡
Original assignee: 华为技术有限公司
Priority date: 2022-09-30
Filing date: 2023-09-11
Publication date: 2024-04-04
Also published as: CN117812675A

Abstract

Provided in the embodiments of the present application are a communication method and a communication apparatus. The communication method comprises: receiving wake-up information on a wake-up radio (WUR) link according to a first modulation mode, wherein the wake-up information is used for waking up N terminal devices, which correspond to N bitmaps on a one-to-one basis, and each bitmap comprises K bits from among a plurality of bits, K being less than N, and N and K being positive integers; determining a first bitmap according to the wake-up information, wherein the first bitmap is one of the N bitmaps; and according to the first bitmap, determining whether the terminal devices need to be woken up. Thus, whether terminal devices need to be woken up can be determined according to configured wake-up information having a fixed length, low-power-consumption monitoring is performed by using WUR, an information bit rate for indicating whether a plurality of terminal devices are woken up is reduced, spectrum resources are saved on, and the spectrum resource utilization rate is increased.

Description

A communication method and a communication device

This application claims priority to the Chinese patent application filed with the China Patent Office on September 30, 2022, with application number 202211207783.1 and application name “A Communication Method and Communication Device”, the entire contents of which are incorporated by reference in this application.

Technical Field

The embodiments of the present application relate to the field of wireless communication technology, and more specifically, to a communication method and a communication device.

Background technique

In order to solve the power consumption problem of receiving paging in the idle and inactive states of the terminal, the 3rd generation partnership project (3GPP) is currently discussing the use of a separate low-power small circuit to receive paging-related information, such as a wake-up circuit. The signal received by the wake-up circuit can be called a wake-up signal (wake-up radio, WUR). On the WUR link, the wake-up signal is usually sent using modulation methods such as on-off keying (OOK) or frequency-shift keying (FSK), thereby reducing the power consumption of the monitoring channel. However, due to the low spectrum efficiency of the modulation method based on OOK or FSK, the transmission rate that OOK or FSK can carry is not high. If the number of terminal devices to be paged is large, a higher transmission rate is required, which increases the power consumption of the terminal device.

Therefore, for multi-paging terminal devices, how to use WUR for low-power monitoring while reducing the power consumption of terminal devices and improving the utilization of spectrum resources is an urgent problem that needs to be solved.

Summary of the invention

An embodiment of the present application provides a communication method, which configures wake-up information of a fixed length so that a terminal device determines whether to be awakened based on the wake-up information. While using WUR for low-power consumption monitoring, it reduces the information bit rate indicating whether multiple terminal devices are awake, thereby saving spectrum resources and improving spectrum resource utilization.

In a first aspect, a communication method is provided. The method may be executed by a terminal device, or may be executed by a component of the terminal device (such as a chip or a circuit), which is not limited to this. For ease of description, the following description is based on an example of execution by a terminal device.

The method may include: receiving wake-up information on a wake-up radio WUR link according to a first modulation mode, the wake-up information including multiple bits, the wake-up information being used to wake up N terminal devices, the N terminal devices corresponding one-to-one to N bitmaps, each of the bitmaps including K bits of the multiple bits, K being less than N, and N and K being positive integers; determining a first bitmap according to the wake-up information, the first bitmap being one of the N bitmaps; and determining whether it needs to be woken up according to the first bitmap.

Based on the above scheme, by configuring the wake-up information of a fixed length, the information indicating whether multiple terminal devices need to be awakened is provided without transmitting the UE ID of each terminal device, thereby reducing the bit rate of the information indicating whether multiple terminal devices need to be awakened, saving spectrum resources and improving the utilization rate of spectrum resources.

In combination with the first aspect, in certain implementations of the first aspect, determining the first bitmap based on the wake-up information includes: receiving first indication information, the first indication information being used to indicate the positions of K bits in the first bitmap in the wake-up information; and determining the first bitmap based on the first indication information and the wake-up information.

Based on the above solution, the terminal device can directly receive the first indication information from the network device and determine the first bitmap according to the first indication information, which increases the flexibility of the solution for the terminal device to determine the first bitmap.

In combination with the first aspect, in some implementations of the first aspect, receiving the first indication information includes: receiving the first indication information on a primary link.

Based on the above scheme, the terminal device can receive the first indication information on the main link, which increases the flexibility of the scheme for receiving the first indication information.

In combination with the first aspect, in some implementations of the first aspect, determining the first bitmap according to the wake-up information includes: determining positions of the K bits in the wake-up information according to the K mapping relationships; determining the first bitmap according to the positions of the K bits in the wake-up information and the wake-up information; The first bitmap is determined by the information.

Based on the above scheme, the terminal device determines the position of K bits corresponding to the terminal device in the wake-up information according to the mapping relationship preconfigured with the network device, and further determines its own corresponding first bitmap, thereby increasing the flexibility of the scheme for the terminal device to determine the first bitmap.

In combination with the first aspect, in certain implementations of the first aspect, determining a first bitmap based on the wake-up information includes: receiving second indication information, the second indication information being used to indicate the number K of bits corresponding to the first bitmap; determining positions of the K bits in the wake-up information based on the second indication information and K mapping relationships; and determining the first bitmap based on the positions of the K bits in the wake-up information and the wake-up information.

Based on the above scheme, the terminal device can first determine the number of bits included in the first bitmap corresponding to itself through the second indication information, and further determine the position of the K bits corresponding to the terminal device in the wake-up information according to the preconfigured mapping relationship, thereby determining the first bitmap, which increases the flexibility of the scheme for the terminal device to determine the first bitmap.

In combination with the first aspect, in some implementations of the first aspect, receiving the second indication information includes: receiving the second indication information on a primary link.

Based on the above solution, the terminal device can receive the second indication information on the main link, which increases the flexibility of the solution for receiving the second indication information.

In combination with the first aspect, in certain implementations of the first aspect, determining whether it is necessary to be awakened according to the first bit map includes: when the K bits are all awakening agreed values, determining that it is necessary to be awakened.

Based on the above scheme, the terminal device determines whether the positions of the K bits indicated in the first bit map in the wake-up information are set to the wake-up agreed values agreed with the network device. When the K bits are all the wake-up agreed values, it is determined that the terminal device needs to be awakened, thereby reducing the overhead of the terminal device in determining whether to be awakened and increasing the flexibility of the scheme for determining whether the terminal device is awakened.

In combination with the first aspect, in certain implementations of the first aspect, the method also includes: receiving a paging message within a main link time period corresponding to the WUR sending cycle or sending period.

In combination with the first aspect, in certain implementations of the first aspect, determining whether it is necessary to be awakened based on the first bit map includes: when at least one bit among the K bits is not a wake-up agreed value, determining that it is not necessary to be awakened.

Based on the above scheme, the terminal device determines whether the position of the K bits indicated in the first bit map in the wake-up information is set to the wake-up agreed value agreed with the network device. When at least one bit among the K bits is not the wake-up agreed value, it is determined that the terminal device does not need to be awakened, thereby reducing the overhead of the terminal device in determining whether to be awakened and increasing the flexibility of the scheme for determining whether the terminal device is awakened.

In combination with the first aspect, in certain implementations of the first aspect, the method also includes: monitoring the WUR signal on the WUR link.

In combination with the first aspect, in certain implementations of the first aspect, receiving wake-up information on a WUR link according to a first modulation method includes: demodulating the first modulation method using envelope detection to receive the wake-up information.

Based on the above solution, the terminal device receives wake-up information on the WUR link through envelope detection, which reduces the power consumption and overhead of the terminal device.

In combination with the first aspect, in some implementations of the first aspect, the first modulation method includes any one of the following: on-off keying OOK modulation, frequency shift keying FSK modulation, and amplitude shift keying ASK modulation.

In a second aspect, a communication method is provided. The method may be executed by a network device, or may be executed by a component of the network device (such as a chip or circuit), which is not limited to this. For ease of description, the following description is based on an example of execution by a network device.

The method may include: determining wake-up information, the wake-up information including multiple bits, the wake-up information being used to wake up N terminal devices, the N terminal devices corresponding one-to-one to N bitmaps, each of the bitmaps including K bits of the multiple bits, K being less than N, and N and K being positive integers; using a first modulation method to send the wake-up information on a wake-up radio WUR link, the first modulation method being demodulated using envelope detection.

Based on the above scheme, the network device configures a fixed-length wake-up message to indicate whether multiple terminal devices need to be awakened, so that no matter how many terminal devices are paged, there is no need to transmit the UE ID of each terminal device, thereby reducing the bit rate of the information indicating whether multiple terminal devices are awakened, thereby saving spectrum resources.

In conjunction with the second aspect, in some implementations of the second aspect, determining the wake-up information includes: determining N first indication information, one of the first indication information corresponds to one awakened terminal device, and the first indication information is used to indicate that K bits in the bitmap are in the wake-up terminal device. The wake-up information is determined according to the N first indication information.

Based on the above scheme, the network device determines a first indication information for each paged terminal device, and the first indication information is used to indicate the position of the K bits corresponding to the terminal device in the wake-up information, and further determines the wake-up information of a fixed length based on the first indication information, thereby increasing the flexibility of the scheme for the network device to determine the wake-up information.

In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending the N first indication information on the primary link.

Based on the above solution, the network device can send the N first indication information on the main link, which increases the flexibility of the solution for sending the N first indication information.

In combination with the second aspect, in certain implementations of the second aspect, determining the wake-up information includes: determining a bitmap based on K mapping relationships, where the mapping relationship is used to determine the position of one of the K bits in the wake-up information; and determining the wake-up information based on the N bitmaps.

Based on the above scheme, the network device determines the bitmap corresponding to the terminal device according to the mapping relationship preconfigured with the terminal device, and further determines the wake-up information of fixed length according to the N bitmaps corresponding to the N terminal devices, thereby increasing the flexibility of the scheme for the network device to determine the wake-up information.

In combination with the second aspect, in certain implementations of the second aspect, determining the wake-up information includes: determining second indication information, the second indication information being used to indicate the number K of bits corresponding to the bitmap; determining a bitmap based on the second indication information and K mapping relationships, the mapping relationship being used to determine the position of one of the K bits in the wake-up information; and determining the wake-up information based on the N bitmaps.

Based on the above scheme, the network device first determines N second indication information for indicating the number of bits included in the bitmap corresponding to the N terminal devices according to the priority of the terminal device to be awakened or the priority of the paging delay, further determines the bitmap corresponding to the terminal device according to the mapping relationship preconfigured with the terminal device, and further determines the wake-up information of fixed length according to the N bitmaps corresponding to the N terminal devices, thereby increasing the flexibility of the scheme for the network device to determine the wake-up information. At the same time, since the number of bits corresponding to different terminal devices is determined according to the wake-up priority or the priority of the paging delay of different terminal devices, the higher the priority of the paging delay, the more bits corresponding to the terminal device, thereby reducing the false alarm rate of the terminal device; the lower the wake-up priority, the fewer bits corresponding to the terminal device, thereby reducing the computational complexity of the terminal device.

In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending the second indication information on the primary link.

Based on the above solution, the network device can send the N second indication information on the main link, which increases the flexibility of the solution for sending the N second indication information.

In combination with the second aspect, in some implementations of the second aspect, the method further includes: setting the K bits in the N bitmaps as wake-up agreed values.

Based on the above solution, the network device sets the K bits in the bitmap corresponding to the N terminal devices in the wake-up information to the wake-up agreed values agreed with the terminal devices, so that the terminal devices determine whether to be awakened according to the wake-up information.

In combination with the second aspect, in some implementations of the second aspect, the first modulation method includes any one of the following: on-off keying OOK modulation, frequency shift keying FSK modulation, and amplitude shift keying ASK modulation.

In a third aspect, a communication device is provided, comprising a unit for executing the method shown in the first aspect above. The communication device may be a terminal device, or may be executed by a chip or circuit arranged in the terminal device, and the present application does not limit this.

The communication device comprises:

A transceiver unit is used to receive wake-up information on a wake-up radio WUR link according to a first modulation method, the wake-up information including multiple bits, the wake-up information is used to wake up N terminal devices, the N terminal devices correspond one-to-one to N bitmaps, each of the bitmaps includes K bits of the multiple bits, K is less than N, and N and K are positive integers; a processing unit is used to determine a first bitmap according to the wake-up information, the first bitmap is one of the N bitmaps; the processing unit is also used to determine whether it needs to be awakened according to the first bitmap.

In combination with the third aspect, in certain implementations of the third aspect, the transceiver unit is further used to receive first indication information, where the first indication information is used to indicate the position of K bits in the first bitmap in the wake-up information; the processing unit is further used to determine the first bitmap based on the first indication information and the wake-up information.

In combination with the third aspect, in some implementations of the third aspect, the transceiver unit is further used to receive the first indication information on the main link.

In conjunction with the third aspect, in some implementations of the third aspect, the processing unit is further configured to determine the K mapping relationships according to the K mapping relationships. The processing unit is further configured to determine the first bit map according to the positions of the K bits in the wake-up information and the wake-up information.

In combination with the third aspect, in certain implementations of the third aspect, the transceiver unit is further used to receive second indication information, where the second indication information is used to indicate the number K of bits corresponding to the first bitmap; the processing unit is further used to determine the positions of the K bits in the wake-up information based on the second indication information and the K mapping relationships; the processing unit is further used to determine the first bitmap based on the positions of the K bits in the wake-up information and the wake-up information.

In combination with the third aspect, in certain implementations of the third aspect, the transceiver unit is further configured to receive the second indication information on the primary link.

In combination with the third aspect, in certain implementations of the third aspect, when the K bits are all wake-up agreed values, the processing unit is further used to determine that it needs to be woken up.

In combination with the third aspect, in certain implementations of the third aspect, the transceiver unit is further used to receive a paging message within a main link time period corresponding to the WUR sending cycle or sending period.

In combination with the third aspect, in certain implementations of the third aspect, when at least one bit among the K bits is not a wake-up agreed value, the processing unit is further configured to determine that wake-up is not required.

In combination with the third aspect, in certain implementations of the third aspect, the transceiver unit is also used to monitor the WUR signal on the WUR link.

In combination with the third aspect, in some implementations of the third aspect, the processing unit is further used to demodulate the first modulation method using envelope detection and receive the wake-up information.

In combination with the third aspect, in certain implementations of the third aspect, the first modulation method includes any one of the following: on-off keying OOK modulation, frequency shift keying FSK modulation, and amplitude shift keying ASK modulation.

The explanation of the communication device related contents and beneficial effects provided in the third aspect can refer to the method shown in the first aspect and will not be repeated here.

In a fourth aspect, a communication device is provided, comprising a unit for executing the method shown in the second aspect above. The communication device may be a UE, or may be executed by a chip or circuit arranged in the UE, and the present application does not limit this.

The communication device comprises:

A processing unit is used to determine wake-up information, which includes multiple bits. The wake-up information is used to wake up N terminal devices, and the N terminal devices correspond one-to-one to N bitmaps. Each of the bitmaps includes K bits of the multiple bits, K is less than N, and N and K are positive integers; a transceiver unit is used to send the wake-up information on a wake-up radio WUR link using a first modulation method, and the first modulation method is demodulated using envelope detection.

In combination with the fourth aspect, in certain implementations of the fourth aspect, the processing unit is further used to determine N first indication information, one first indication information corresponds to an awakened terminal device, and the first indication information is used to indicate the position of K bits in the bitmap in the wake-up information; the processing unit is also used to determine the wake-up information based on the N first indication information.

In combination with the fourth aspect, in certain implementations of the fourth aspect, the transceiver unit is further used to send the N first indication information on the main link.

In combination with the fourth aspect, in certain implementations of the fourth aspect, the processing unit is further used to determine a bitmap based on K mapping relationships, and one of the mapping relationships is used to determine the position of one of the K bits in the wake-up information; the processing unit is also used to determine the wake-up information based on the N bitmaps.

In combination with the fourth aspect, in certain implementations of the fourth aspect, the processing unit is further used to determine second indication information, where the second indication information is used to indicate the number K of bits corresponding to the bitmap; the processing unit is further used to determine the bitmap based on the second indication information and K mapping relationships, where the mapping relationship is used to determine the position of one of the K bits in the wake-up information; the processing unit is further used to determine the wake-up information based on the N bitmaps.

In combination with the fourth aspect, in certain implementations of the fourth aspect, the transceiver unit is further used to send the second indication information on the primary link.

In combination with the fourth aspect, in certain implementations of the fourth aspect, the processing unit is further used to set the K bits in the N bitmaps as wake-up agreed values.

In combination with the fourth aspect, in certain implementations of the fourth aspect, the first modulation method includes any one of the following: on-off keying OOK modulation, frequency shift keying FSK modulation, and amplitude shift keying ASK modulation.

In a fifth aspect, a communication device is provided, the device comprising: a memory for storing a program; at least one processor for executing A computer program or instruction stored in a row memory to execute the method of the possible implementation of the first aspect or the second aspect mentioned above.

In one implementation, the apparatus is a terminal device.

In another implementation, the apparatus is a chip, a chip system or a circuit used in a terminal device.

In a sixth aspect, the present application provides a processor for executing the methods provided in the above aspects.

For the operations such as sending and acquiring/receiving involved in the processor, unless otherwise specified, or unless they conflict with their actual function or internal logic in the relevant description, they can be understood as operations such as processor output, reception, input, etc., or as sending and receiving operations performed by the radio frequency circuit and antenna, and this application does not limit this.

In a seventh aspect, a computer-readable storage medium is provided, which stores a program code for execution by a device, wherein the program code includes a method for executing a possible implementation of the first aspect or the second aspect described above.

In an eighth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute a method which may be implemented in the first or second aspect.

In a ninth aspect, a chip is provided, the chip comprising a processor and a communication interface, the processor reads instructions stored in a memory through the communication interface, and executes a method of a possible implementation of the first aspect or the second aspect.

Optionally, as an implementation method, the chip also includes a memory, in which a computer program or instructions are stored, and the processor is used to execute the computer program or instructions stored in the memory. When the computer program or instructions are executed, the processor is used to execute the method of the possible implementation method of the first aspect or the second aspect mentioned above.

In a tenth aspect, a communication system is provided, comprising one or more of the terminal devices and network devices described above.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 shows a schematic diagram of a network architecture applicable to an embodiment of the present application.

FIG. 2 shows a schematic flow chart of a communication method 200 provided in an embodiment of the present application.

FIG3 shows a schematic flow chart of a communication method 300 provided in an embodiment of the present application.

FIG. 4 shows a schematic flow chart of a communication method 400 provided in an embodiment of the present application.

FIG5 shows a schematic block diagram of a communication device 500 provided in an embodiment of the present application.

FIG6 shows a schematic block diagram of another communication device 600 provided in an embodiment of the present application.

FIG. 7 shows a schematic diagram of a chip system 700 provided in an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

FIG1 shows a communication system 100 to which an embodiment of the present application is applicable, wherein the communication system 100 includes a network device 110 and terminal devices (terminal devices 120, 130, and 140), wherein the network device 110 is responsible for bidirectional communication with multiple terminal devices, for example, the network device 110 shown in FIG1 sends downlink data to a terminal device (for example, the terminal device 120 and the terminal device 130 in FIG1), or the network device 110 receives uplink data from a terminal device (for example, the terminal device 140 in FIG1). It should be understood that the number of network devices and terminal devices shown in FIG1 is only schematic, and the communication system 100 may include any number of network devices and terminal devices.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, fifth generation (5G) system or new radio (NR), future sixth generation (6G) system, etc.

The terminal device in the embodiments of the present application may refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), Handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks, terminal devices in future 6G networks, or terminal devices in future evolved public land mobile communication networks (Public Land Mobile Network, PLMN), etc., are not limited to this in the embodiments of the present application.

The network device in the embodiments of the present application may be a device for communicating with a terminal device. The network device may be a base station (Base Transceiver Station, BTS) in a Global System of Mobile communication (GSM) system or a Code Division Multiple Access (CDMA) system, or a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station (Evolutional NodeB, eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, a network device in a 5G network, a network device in a future 6G network, or a network device in a future evolved PLMN network, etc., and the embodiments of the present application are not limited thereto.

It should be understood that the communication system architecture shown above is only an exemplary description, and the communication system architecture applicable to the embodiments of the present application is not limited to this. Any communication system architecture that can realize the functions of the above-mentioned network elements is applicable to the embodiments of the present application.

Some technical terms or concepts involved in this application are uniformly explained or introduced below for easy reading.

1. Wake-up radio (WUR):

When the UE is in idle or inactive state, it will calculate a paging frame (PF) and the position of a paging occasion (PO) in the PF according to its own UE ID, and receive paging in the PO. Whether the UE is in idle or inactive state and performs the above paging reception process, or when the UE is in connected state and receives data, the same receiving module is used. In this application, we refer to the receiver that performs these functions (or performs related steps) as the main receiver (or main circuit).

In order to further reduce the power consumption of UE, a separate low-power small circuit can be used or some devices in the main receiver can be reused to form a low-power small circuit to receive paging-related messages. This small circuit can be called a wake-up circuit or a low-power circuit or other names, and the signal received by the wake-up circuit can be called WUR.

2. On-off keying (OOK) modulation:

OOK modulation is a way of carrying information by whether or not to send a carrier signal. As an example, a unipolar non-return-to-zero code sequence is used to control the on and off of a sinusoidal carrier. Specifically, OOK modulation encodes the carrier clock signal and the input signal. When the input signal is high/low, the modulator outputs the carrier clock signal, and when it is low/high, the modulator outputs a 0 level. OOK modulation can be achieved through a multiplier and a switching circuit. The carrier is turned on or off under the control of a digital signal 1 or 0. When the signal is 1, the carrier is turned on, and a carrier appears on the transmission channel; when the signal is 0, the carrier is turned off, and no carrier is transmitted on the transmission channel. Then, at the receiving end, the 1 and 0 of the digital signal can be restored based on the presence or absence of a carrier.

3. Frequency-shift keying (FSK) modulation:

FSK modulation uses digital signals to control the position of the carrier frequency to modulate the information to be carried.

4. Amplitude-shift keying (FSK) modulation:

ASK modulation is a modulation method that uses amplitude keying. ASK modulation adjusts the amplitude of the carrier (sine wave) according to the modulated information. The amplitude of the carrier changes with the modulated information.

It can be understood that the term "and/or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.

The above briefly describes the terms involved in this application, and will not be repeated in the following embodiments. The communication method provided by the embodiments of this application will be described in detail below in conjunction with the accompanying drawings. The embodiments provided by this application can be applied to the network architectures shown in Figures 1 to 3 above, without limitation.

Based on the architecture shown in Figure 1 above, by sending a wake-up signal using OOK, FSK, ASK or other modulation methods on the WUR link, the overall power consumption or average power consumption of the terminal in the idle state can be reduced. However, due to the low spectrum efficiency of modulation methods such as OOK, FSK or ASK, the transmission rate that can be carried by modulation methods such as OOK, FSK or ASK is not high. If the number of paging terminal devices is large, and specific paging ID information or terminal UEID information is indicated to each terminal device, more information needs to be transmitted, which requires a higher transmission rate, thereby increasing the subcarrier spacing of the carrier signal or the bandwidth of the signal, which may cause interference to the existing NR signal or a large waste of spectrum.

The present application provides a communication method, by configuring a wake-up message of a fixed length, so that a terminal device determines a wake-up message according to the wake-up message. Whether it is awakened. Since the number of bits of the fixed-length wake-up information is much less than the total number of bits required to indicate the UE ID of each UE that needs to be awakened, the WUR signal can be sent using the same subcarrier spacing as the NR system while using WUR for low-power monitoring, avoiding the interference problem caused by orthogonal frequency-division multiplexing (OFDM) signals with different subcarrier spacings. At the same time, the WUR information rate that needs to be indicated is reduced, the frequency overhead of WUR signal transmission is reduced, and the utilization rate of spectrum resources is improved.

Fig. 2 is a schematic diagram of a communication method 200 provided in an embodiment of the present application. The method 200 may include the following steps.

S210, determining wake-up information.

Specifically, the network device determines the wake-up information for waking up N terminal devices.

The wake-up information includes multiple bits.

It should be understood that the N terminal devices are terminal devices that need to be awakened within the target period determined by the network device, and N is a positive integer.

Among them, N terminal devices correspond one to one to N bitmaps.

Specifically, each bitmap includes K bits among the plurality of bits.

Optionally, any two bitmaps include at least one bit with a different position in the wake-up information, wherein K is less than N, and N and K are positive integers.

It should be understood that for N terminal devices, each terminal device has K bits corresponding to the terminal device in the wake-up information (i.e., the bitmap corresponding to each terminal device). Any two bitmaps include at least one bit with a different position in the wake-up information, which can be understood as the two bitmaps corresponding to any two terminal devices, that is, the two groups of K bits corresponding to any two terminal devices, include at least one bit with a different position in the wake-up information. In other words, the positions of the two groups of K bits of any two terminal devices in the wake-up information may be completely different or not completely the same, that is, there is a possibility that the positions of the two groups of K bits of any two terminal devices in the wake-up information are partially the same. In other words, for the two groups of K bits of any two terminal devices, one of the K bits of each terminal device can have a position in the wake-up information that is different from the position of the K bits of other terminal devices in the wake-up information, and the present application is not limited to this.

Exemplarily, the first bitmap corresponding to the first terminal device is [1, 3, 5], that is, the positions of the three bits corresponding to the first terminal device in the wake-up information are respectively the 1st, 3rd, and 5th, and the second bitmap corresponding to the second terminal device can be [2, 6, 8] which is completely different from the first bitmap, that is, the positions of the three bits corresponding to the second terminal device in the wake-up information are respectively the 2nd, 6th, and 8th; the second bitmap corresponding to the second terminal device can also be [1, 3, 6] which is partially the same as the first bitmap, that is, the positions of the three bits corresponding to the second terminal device in the wake-up information are respectively the 1st, 3rd, and 6th, and the present application is not limited to this.

It should be understood that when the K positions allocated by the base station to the terminal are not good, or the total number of bits of the wake-up information is insufficient, the two bitmaps of the two terminals may completely overlap, which may cause certain virtual wake-ups. In this case, the occurrence of two bitmaps of different terminals completely overlapping can be avoided by reasonably allocating the K positions of each terminal or using a reasonable length of the total number of bits of the wake-up information, and this application is not limited to this.

S220, send wake-up information on the WUR link using the first modulation method.

Specifically, the network device uses the first modulation method to send wake-up information to N terminal devices on the WUR link.

Correspondingly, the terminal device receives wake-up information on the WUR link according to the first modulation mode.

In a possible implementation manner, the terminal device demodulates the first modulation mode by using envelope detection to receive the wake-up information.

Specifically, the first modulation mode includes any one of the following:

On-off keying OOK modulation, frequency shift keying FSK modulation, amplitude shift keying ASK modulation.

Further, after receiving the wake-up information, the terminal device determines the bitmap corresponding to itself according to the wake-up information. The method 200 may also include:

S230: Determine a first bitmap according to the wake-up information.

Specifically, after receiving the wake-up information, the terminal device determines the positions of the K bits corresponding to itself in the wake-up information, that is, the bitmap corresponding to itself, according to the wake-up information.

The first bitmap is one of the N bitmaps.

Exemplarily, the first terminal device determines a first bitmap corresponding to itself, and the second terminal device determines a second bitmap corresponding to itself, which is not limited in the present application.

S240, determining whether it needs to be awakened according to the first bitmap.

Specifically, after the terminal device determines the first bitmap, it determines whether it needs to be awakened according to the first bitmap.

In a possible implementation, when the terminal device determines that the K bits indicated by the first bit map are all wake-up agreed values, the terminal device determines that it needs to be awakened.

The wake-up agreed value is a value agreed upon by the network device and the N terminal devices.

Optionally, the wake-up agreement value may be 1, 0, or other values, which is not limited in this application.

Optionally, S241, receiving a paging message within the main link time period corresponding to the WUR sending cycle or sending period.

Specifically, after the terminal device determines that it needs to be awakened, the terminal device receives a paging message within the main link time period corresponding to the WUR sending cycle or sending period.

Exemplarily, the time position relationship between the main link time period and the WUR sending cycle or sending time period can be set by pre-configuration or pre-setting, or by defining and pre-configuring the minimum time offset between the WUS sending time period and the main link sending time period, and this application is not limited to this.

In a possible implementation manner, when the terminal device determines that in the wake-up information, at least one bit among the K bits indicated by the first bit map is not the wake-up agreed value, the terminal device determines that it does not need to be awakened.

Optionally, S242, monitors WUR signals on the WUR link.

Specifically, after the terminal device determines that it does not need to be awakened, that is, the terminal device does not wake up the main link, the terminal device listens for the WUR signal on the WUR link.

Based on the above scheme, the network device configures a wake-up message of a fixed length to indicate whether multiple terminal devices need to be awakened, so that no matter how many terminal devices are paged, there is no need to transmit the UE ID of each terminal device, thereby reducing the bit rate of the information indicating whether the multiple terminal devices are awakened, thereby saving spectrum resources and improving spectrum resource utilization.

Further, for S210, determining the wake-up information includes the following possible implementations.

In a possible implementation manner, the network device determines the wake-up information according to N first indication information.

Specifically, the network device directly determines N first indication information, one first indication information corresponds to one awakened terminal device, and one first indication information is used to indicate the position of K bits in a bitmap in the wake-up information. Further, based on the N first indication information, the K bits in the N first indication information are set to the wake-up agreed value, so as to obtain the wake-up information.

It should be noted that the positions of the K bits in the bitmap indicated by the N first indication information corresponding to the N terminal devices in the wake-up information may not be exactly the same, that is, the position of at least one bit indicated between any two first indication information in the wake-up information may be different, and this application does not limit this.

It should be understood that when the K positions allocated by the base station to the terminal are not good, or the total number of bits of the wake-up information is insufficient, the two bitmaps of the two terminals may completely overlap, thereby causing certain virtual wake-ups. In this case, the complete overlap of the two bitmaps of different terminals can be avoided by reasonably allocating the K positions of each terminal or using a reasonable length of the total number of bits of the wake-up information, and this application is not limited to this.

Exemplarily, when the wake-up agreement value is 1, the network device sets K bits corresponding to each bitmap in the wake-up information to 1.

Exemplarily, when the wake-up agreement value is 0, the network device sets K bits corresponding to each bitmap in the wake-up information to 0.

Optionally, S211, sending N first indication information on the main link.

Specifically, after the network device determines N first indication information, it sends the corresponding first indication information to the N terminal devices on the main link.

It should be understood that S211 may be before S210, for example, the network device configures the first indication information to each terminal device through high-level signaling, and then determines the wake-up indication information based on N first indication information. S211 may also be after S210. This application does not limit the execution order of S210 and S211.

Correspondingly, N terminal devices receive N first indication information from the network device on the main link.

In a possible implementation, a bitmap is determined according to K mapping relationships, and the wake-up information is determined according to N bitmaps.

Specifically, the network device determines a bitmap according to K mapping relationships, further determines N bitmaps corresponding to N terminal devices, and sets K bits in the N bitmaps as wake-up agreed values, thereby obtaining wake-up information.

The K mapping relationships are mapping relationships preconfigured by the network device and the terminal device, and one mapping relationship is used to determine the position of one of the K bits in the wake-up information.

It should be noted that the number of mapping relationships pre-configured by the network device and the terminal device may be greater than or equal to K. When the number of pre-configured mapping relationships is greater than K, the network device randomly selects K mapping relationships from the pre-configured mapping relationships to determine the bitmap or selects the mapping relationships according to the bitmap. K mapping relationships are selected according to preset rules, and this application does not impose any restrictions on this.

Optionally, the mapping relationship may be a random mapping function or a hash function, and the input of the random mapping function is information known in advance by both the base station and the terminal, such as information such as the UEID of the terminal, which is not limited in the present application.

In a possible implementation, second indication information is determined, and wake-up information is determined according to the second indication information and K mapping relationships.

Specifically, the network device determines the second indication information, which is used to indicate the number K of bits corresponding to a bitmap, determines a bitmap based on the second indication information and K mapping relationships, further determines N bitmaps corresponding to N terminal devices, and sets the K bits in the N bitmaps to the wake-up agreed values to obtain the wake-up information.

Optionally, the network device determines the second indication information according to the priority of the terminal device.

Among them, the priority can be the wake-up priority of the terminal device, or it can be the priority of the paging delay of the terminal device, which is not limited in this application.

It should be understood that, when the priority of the terminal device is higher, the second indication information indicates that the number K of bits corresponding to a bitmap is greater.

It should be noted that the second indication information corresponding to the N terminal devices may be the same or different, that is, the number K of bits in the bitmap corresponding to the N terminal devices may be the same or different, and this application does not impose any restrictions on this.

It should be noted that the K mapping relationships can refer to the aforementioned description, and here, in order to avoid redundancy, the detailed description is omitted.

Optionally, S212, sending second indication information on the primary link.

Specifically, after determining the second indication information, the network device sends the corresponding second indication information to the N terminal devices respectively on the main link.

Further, for S230, determining N bitmaps according to the wake-up information includes the following possible implementations.

It should be noted that, the following takes the first terminal device determining the first bitmap as an example to illustrate the manner in which N terminal devices determine their corresponding bitmaps.

In a possible implementation manner, first indication information is received, and a first bitmap is determined according to the first indication information and the wake-up information.

Specifically, the first terminal device receives first indication information from the network device, where the first indication information is used to indicate the position of K bits in the first bitmap in the wake-up information, and further determines the first bitmap based on the first indication information and the wake-up information.

It should be understood that N terminal devices receive N first indication information corresponding to them from the network device. For example, the first terminal device receives the first indication information corresponding to it from the network device, the second terminal device receives the first indication information corresponding to it from the network device, and so on.

It should be understood that when the K positions allocated by the base station to the terminal are not good, or the total number of bits of the wake-up information is insufficient, the two bitmaps of the two terminals may completely overlap, thereby causing certain virtual wake-ups. In this case, the occurrence of two bitmaps of different terminals completely overlapping can be avoided by reasonably allocating the K positions of each terminal or using a reasonable length of the total number of bits of the wake-up information, and this application is not limited to this.

Optionally, the first terminal device receives first indication information from the network device on the main link.

In a possible implementation manner, positions of K bits in the wake-up information are determined according to K mapping relationships, and a first bitmap is further determined.

Specifically, the first terminal device determines the positions of K bits in the wake-up information according to K mapping relationships, and determines the first bitmap according to the positions of the K bits in the wake-up information and the wake-up information.

In a possible implementation manner, the first bitmap is determined according to the second indication information and K mapping relationships.

Specifically, the first terminal device receives second indication information from the network device, where the second indication information is used to indicate the number K of bits corresponding to the first bitmap. Further, the first terminal device determines the first bitmap based on the second indication information and K mapping relationships.

Among them, K mapping relationships are mapping relationships pre-configured by network devices and terminal devices. One mapping relationship is used to determine K The position of a bit in the wake-up message.

Optionally, for S220, when the network device sends the wake-up information on the WUR link using the first modulation mode, it may also send warning information and system update information. The method 200 may further include:

S221, sending warning information and system update information.

Specifically, when the network device uses the first modulation method to send the wake-up information on the WUR link, the early warning information and the system update information are simultaneously sent to N terminal devices on the WUR link using the first modulation method.

Among them, the warning information is used to indicate whether the terminal device reads the system information corresponding to the earthquake and tsunami warning system (ETWS) and/or the commercial mobile alert system (CMAS).

Specifically, the warning information also includes priority indication information, and the priority indication information includes high priority indication information and low priority indication information.

Among them, the high priority indication information is used to indicate a small amount of information about earthquakes and tsunamis, such as message category information (earthquake information, tsunami information, etc.) and information that the terminal device prompts the user. According to the provisions of TS22.168 and TS22.268, the time from the operator receiving the high priority indication information to the high priority indication information being transmitted to the terminal device needs to be within 4 seconds, and the data volume of the high priority indication information is about several bits.

Among them, low-priority indication information is used to indicate non-urgent information with a large amount of data, such as message purpose information (e.g., whether the message is used for testing, training, etc.), safe location information, information on obtaining help, food distribution time information, etc. There is no clear requirement for transmission delay and data size for the low-priority indication information.

The system update information is used to indicate whether the terminal device needs to re-read the system information.

It should be understood that in NR, the system information of the cell is not updated frequently. If the terminal device reads the system information of the cell, the terminal device will no longer read the system information frequently. However, if the system information of the cell is updated, the terminal device needs to read the updated system information, otherwise a system error may occur.

Exemplarily, the need for the terminal device to reread the system information may be that the cell has updated the configuration related to paging, and the terminal device needs to reread the updated system information so that the terminal device can correctly receive the paging. The need for the terminal device to reread the system information may also be that the cell has updated the configuration related to random access, and the terminal device needs to reread the updated system information so that the terminal device can successfully initiate random access, and this application is not limited to this.

Fig. 3 is a schematic diagram of a communication method 300 provided in an embodiment of the present application. The method 300 may include the following steps.

S301, the network device determines a terminal device that needs to be awakened.

Specifically, the network device determines N terminal devices that need to be awakened within the target period. In other words, the network device determines that N terminal devices within the target period are paged, where N is a positive integer.

S302: The network device determines N first indication information.

It should be understood that for each terminal device that needs to be awakened, the network device determines the first indication information corresponding to the terminal device.

Specifically, each first indication information is used to indicate the position of K bits in the bitmap corresponding to each terminal device in the wake-up information.

Optionally, at least one bit among K bits indicated by any two bitmaps has a different position in the wake-up information, the multiple bits include K bits, K is less than N, and N and K are positive integers.

The wake-up information includes multiple bits.

It should be noted that the number of bits of the wake-up information is configured by the main system (for example, NR, LTE, WCDMA Downlink, etc.).

It should be understood that for N terminal devices, each terminal device has K bits corresponding to the terminal device in the wake-up information (i.e., the bitmap corresponding to each terminal device). Among them, any two bitmaps may include at least one bit with a different position in the wake-up information, which can be understood as the two bitmaps corresponding to any two terminal devices, that is, the two groups of K bits corresponding to any two terminal devices, may include at least one bit with a different position in the wake-up information. In other words, the positions of the two groups of K bits of any two terminal devices in the wake-up information may be completely different or not completely the same, that is, the positions of the two groups of K bits of any two terminal devices in the wake-up information may be partially the same. In other words, for the two groups of K bits of any two terminal devices, one of the K bits of each terminal device may have a position in the wake-up information that is different from the position of the K bits of other terminal devices in the wake-up information, and the present application is not limited to this.

For example, the first bitmap corresponding to the first terminal device is [1, 3, 5], that is, the 3 bits corresponding to the first terminal device are in the wake-up state. The positions in the information are respectively the 1st, 3rd, and 5th. The second bitmap corresponding to the second terminal device can be [2, 6, 8] which is completely different from the first bitmap, that is, the positions of the 3 bits corresponding to the second terminal device in the wake-up information are respectively the 2nd, 6th, and 8th. The second bitmap corresponding to the second terminal device can also be [1, 3, 6] which is partially the same as the first bitmap, that is, the positions of the 3 bits corresponding to the second terminal device in the wake-up information are respectively the 1st, 3rd, and 6th. This application is not limited to this.

It should be understood that when the K positions allocated by the base station to the terminal are not good, or the total number of bits of the wake-up information is insufficient, the two bitmaps of the two terminals may completely overlap, which may cause certain virtual wake-ups. For this situation, the occurrence of two bitmaps of different terminals completely overlapping can be avoided by reasonably allocating the K positions of each terminal or using a reasonable length of the total number of bits of the wake-up information. This application is not limited to this.

S303: The network device determines wake-up information according to N first indication information.

Specifically, after the network device determines N first indication information, it sets K bits in the N first indication information as the wake-up agreed value to obtain the wake-up information.

The wake-up information is used to wake up N terminal devices.

In a possible implementation, when the wake-up agreement value is 1, the network device sets K bits corresponding to each bitmap in the wake-up information to 1, and sets bits at other positions in the wake-up information to 0.

Exemplarily, when the number of terminal devices that need to be awakened is 2 and the wake-up information includes 10 bits, the first bitmap indicated by the first indication information corresponding to the first terminal device determined in S302 is [1, 3, 5], and the second bitmap indicated by the first indication information corresponding to the second terminal device is [2, 6, 8]. Then the wake-up information determined according to the first bitmap and the second bitmap is [1, 1, 1, 0, 1, 1, 0, 0, 0].

In a possible implementation, when the wake-up agreement value is 0, the network device sets K bits corresponding to each bitmap in the wake-up information to 0, and sets bits at other positions in the wake-up information to 1.

Exemplarily, when the number of terminal devices that need to be awakened is 2 and the wake-up information includes 10 bits, the first bitmap indicated by the first indication information corresponding to the first terminal device determined in S302 is [1, 3, 5], and the second bitmap indicated by the first indication information corresponding to the second terminal device is [2, 6, 8]. Then the wake-up information determined according to the first bitmap and the second bitmap is [0, 0, 0, 1, 0, 0, 1, 0, 1, 1].

It should be noted that the above-mentioned method in which the network device determines the wake-up information based on N first indication information is only an example, and this application does not limit this.

Optionally, S304, the network device sends N first indication information to N terminal devices.

Specifically, after the network device determines the N first indication information corresponding to the N terminal devices, the network device sends the corresponding first indication information to the N terminal devices.

Correspondingly, the N terminal devices receive N first indication information from the network device.

Optionally, the network device sends its corresponding first indication information to N terminal devices on the main link.

In a possible implementation manner, the network device carries the N first indication information in one message and sends it to N terminal devices.

Exemplarily, the network device sends first information to N terminal devices respectively on the main link, where the first information includes N first indication information.

In a possible implementation manner, the network device sends the N first indication information to N terminal devices respectively.

Exemplarily, the network device sends its corresponding first indication information to the first terminal device on the main link, the network device sends its corresponding first indication information to the second terminal device on the main link, and so on.

It should be noted that the above-mentioned method of the network device sending N first indication information to N terminal devices is only an example, and this application does not limit this.

It should be understood that the above S302 and S304 may be performed before S303 or before S301, and this application does not limit this.

S305, the network device uses the first modulation method to send wake-up information to N terminal devices on the WUR link.

Correspondingly, N terminal devices receive wake-up information on the WUR link according to the first modulation mode.

Specifically, after the network device determines the wake-up information, it sends the wake-up information to N terminal devices that need to be awakened.

Optionally, N terminal devices demodulate the first modulation method using envelope detection and receive wake-up information.

Specifically, the first modulation mode includes any one of the following:

It should be noted that the present application does not limit the order of the above S304 and S305. For example, S304 and S305 may be performed at the same time. Alternatively, S304 may be executed first and then S305; alternatively, S305 may be executed first and then S304.

S306, N terminal devices determine corresponding N bitmaps.

It should be noted that, for ease of description, the following description is made by taking the first terminal device determining the first bitmap as an example, and other terminal devices among the N terminal devices can determine their corresponding bitmaps with reference to the way the first terminal device determines the first bitmap.

Exemplarily, the first terminal device determines the corresponding first bitmap.

Specifically, the first terminal device receives first indication information from the network device, and determines a first bitmap according to the first indication information.

It should be understood that the network device determines the first indication information corresponding to the first terminal device and sends it to the first terminal device. After the first terminal device receives the first indication information, it determines the first bitmap according to the first indication information and the wake-up information.

Exemplarily, the first bit map indicated by the first indication information corresponding to the first terminal device is [1, 3, 5], that is, the positions of the three bits corresponding to the first terminal device in the wake-up information are respectively the 1st, 3rd, and 5th.

S307: The terminal device determines whether it needs to be awakened according to the first bitmap.

It should be noted that, for the sake of ease of description, the following is an example in which the first terminal device determines whether it needs to be awakened based on the first bit map. Other terminal devices among the N terminal devices can refer to the way the first terminal device determines whether it needs to be awakened to determine whether it needs to be awakened.

Specifically, after the first terminal device determines its corresponding first bitmap, the terminal device determines whether the K bits indicated by the first bitmap are wake-up agreed values, and then determines whether the terminal device needs to be woken up.

In a possible implementation manner, when the first terminal device determines that the K bits indicated by the first bit map are all wake-up agreed values, the first terminal device determines that it needs to be awakened.

Exemplarily, when the wake-up agreed value agreed upon by the network device and the first terminal device is 1, the first bitmap determined by the first terminal device in S306 is [1, 3, 5], and the wake-up information received by the first terminal device from the network device in S305 is [1, 1, 1, 0, 1, 1, 0, 0], the first terminal device determines that the 1st, 3rd, and 5th bits in the wake-up information are 1, 1, 1, respectively. That is, they are all the wake-up agreed value 1, and the first terminal device determines that it needs to be awakened.

In a possible implementation manner, when the terminal device determines that at least one bit among the K bits indicated by the first bit map is not a wake-up agreed value, the terminal device determines that it does not need to be woken up.

Exemplarily, when the wake-up agreed value agreed upon by the network device and the first terminal device is 1, the first bit map determined by the first terminal device in S306 is [1, 3, 5], and the wake-up information received by the first terminal device from the network device in S305 is [0, 1, 0, 0, 1, 1, 0, 1, 0], the first terminal device determines that the 1st, 3rd, and 5th bits in the wake-up information are 0, 0, and 1 respectively, that is, there are two bits that are not the wake-up agreed value 1, then the first terminal device determines that it does not need to be awakened.

It should be noted that the above-mentioned method in which the first terminal device determines whether it needs to be awakened according to the first bit map is only an example and this application does not limit this.

Optionally, S308, the terminal device receives a paging message within a main link time period corresponding to the WUR sending cycle or sending period.

Exemplarily, the time position relationship between the main link time period and the WUR sending cycle or sending period can be set by pre-configuration or pre-setting, or defined by defining and pre-configuring the minimum time offset between the WUS sending period and the main link sending period, and this application is not limited to this. Optionally, S309, the terminal device listens for WUR signals on the WUR link.

Based on the above scheme, the network device indicates whether multiple terminal devices need to be awakened by configuring a wake-up message of a fixed length and the first indication information indicating the position of the bit corresponding to the terminal device in the wake-up message. This makes it unnecessary to transmit the UE ID of each terminal device regardless of the number of terminal devices being paged. This reduces the bit rate of the information indicating whether multiple terminal devices are awakened, thereby saving spectrum resources and improving spectrum resource utilization.

Fig. 4 is a schematic diagram of a communication method 400 provided in an embodiment of the present application. The method 400 may include the following steps.

S401: The network device determines a terminal device that needs to be awakened.

Specifically, the network device determines the N terminal devices that need to be awakened within the target period. In other words, the network device determines N terminal devices are paged within a period, where N is a positive integer.

S402: The network device determines a bitmap according to K mapping relationships.

Specifically, for each terminal device that needs to be awakened, the network device determines a bitmap corresponding to the terminal device according to K mapping relationships.

Specifically, each bitmap is used to indicate the position of K bits corresponding to each terminal device in the wake-up information.

Optionally, at least one bit among the K bits indicated by any two bitmaps may have a different position in the wake-up information, the multiple bits include K bits, K is less than N, and N and K are positive integers.

The wake-up information includes multiple bits.

It should be noted that the relevant description of the bitmap in the above S402 can refer to the description in S302. Here, in order to avoid redundancy, its detailed description is omitted.

It should be noted that, when the terminal device restarts the main receiver, K mapping relationships are reconfigured between the terminal device and the network settings.

It should be noted that the number of mapping relationships pre-configured jointly by the network device and the terminal device can be greater than or equal to K. When the number of pre-configured mapping relationships is greater than K, the network device randomly selects K mapping relationships from the pre-configured mapping relationships or selects them according to preset rules to determine the bitmap. This application does not impose any restrictions on this.

Optionally, the mapping relationship may be a random mapping function or a hash function.

Exemplarily, the input of the random mapping function is information known in advance by both the network and the terminal, such as a user ID of the terminal, which is not limited in the present application.

In a possible implementation manner, the network device determines a bitmap according to K mapping relationships.

Exemplarily, when K is 3 and the mapping relationship is a random mapping function, the network device determines the positions of the three bits in the first bitmap corresponding to the first terminal device in the wake-up information according to the three random mapping functions. Specifically, the network device determines the position of the first bit in the wake-up information as the first bit position according to the first random mapping function, the network device determines the position of the second bit in the wake-up information as the third bit position according to the second random mapping function, and the network device determines the position of the third bit in the wake-up information as the fourth bit position according to the third random mapping function, then the first bitmap determined by the network device is [1, 3, 4].

Exemplarily, when K is 4 and the mapping relationship is a hash function, the network device determines the positions of the four bits in the first bitmap corresponding to the first terminal device in the wake-up information according to the four hash functions. Specifically, the network device determines the position of the first bit in the wake-up information as the second bit according to the first hash function, the network device determines the position of the second bit in the wake-up information as the third bit according to the second hash function, the network device determines the position of the third bit in the wake-up information as the fifth bit according to the third hash function, and the network device determines the position of the fourth bit in the wake-up information as the sixth bit according to the fourth hash function, then the first bitmap determined by the network device is [1, 3, 5, 6].

It should be noted that the above method of determining a bitmap based on K mapping relationships is only an example and this application does not limit this.

In a possible implementation manner, the network device determines a bitmap according to K mapping relationships of the second indication information.

Specifically, the network device determines second indication information corresponding to N terminal devices respectively, where the second indication information is used to indicate the number K of bits corresponding to a bitmap, and determines a bitmap according to K mapping relationships of the second indication information.

It should be noted that the second indication information corresponding to the N terminal devices may be the same or different, that is, the second indication information corresponding to the N terminal devices may be the same or different. The number of bits K in the bitmap may be the same or different, and this application does not limit this.

Exemplarily, when the number K of bits corresponding to the first bitmap corresponding to the first terminal device indicated by the second indication information is 3, and the mapping relationship is a random mapping function, the network device determines the positions of the three bits in the first bitmap in the wake-up information according to the three random mapping functions. Specifically, the network device determines the position of the first bit in the wake-up information as the first bit position according to the first random mapping function, the network device determines the position of the second bit in the wake-up information as the third bit position according to the second random mapping function, and the network device determines the position of the third bit in the wake-up information as the fourth bit position according to the third random mapping function, then the first bitmap determined by the network device is [1, 3, 4].

Exemplarily, when the number of bits K corresponding to the second bitmap corresponding to the second terminal device indicated by the second indication information is 4, and the mapping relationship is a hash function, the network device determines the positions of the 4 bits in the second bitmap in the wake-up information according to the 4 hash functions. Specifically, the network device determines the position of the first bit in the wake-up information as the second bit position according to the first hash function, the network device determines the position of the second bit in the wake-up information as the third bit position according to the second hash function, the network device determines the position of the third bit in the wake-up information as the fifth bit position according to the third hash function, and the network device determines the position of the fourth bit in the wake-up information as the sixth bit position according to the fourth hash function, then the second bitmap determined by the network device is [1, 3, 5, 6].

It should be noted that the above-mentioned method in which the network device determines the bitmap according to the second indication information and K mapping relationships is only an example and this application does not limit this.

S403: The network device determines wake-up information according to the N bitmaps.

Specifically, after the network device determines N bitmaps, it sets K bits in the N bitmaps as wake-up agreed values to obtain wake-up information.

It should be noted that the above-mentioned process of S403 is similar to the process of S303, and its detailed description is omitted here to avoid redundancy.

Optionally, S404, the network device sends N second indication information to N terminal devices.

Correspondingly, the N terminal devices receive N second indication information from the network device.

Specifically, after determining the second indication information, the network device sends the corresponding second indication information to the N terminal devices respectively.

Optionally, the network device sends corresponding second indication information to N terminal devices respectively on the main link.

S405, the network device uses the first modulation method to send wake-up information to N terminal devices on the WUR link.

Specifically, the first modulation mode includes any one of the following:

It should be noted that the present application does not limit the order of the above S404 and S405. For example, S404 and S405 may be executed simultaneously; S404 may be executed first and then S405; S405 may be executed first and then S404.

It should be noted that, in the present application, the above S404 and S405 may be before S401 or before S402, and the present application does not limit this.

S406, N terminal devices determine corresponding N bitmaps.

Specifically, the first terminal device determines the first bitmap according to K mapping relationships.

It should be noted that the K mapping relationships can refer to the description in S402, and the detailed description thereof is omitted here to avoid redundancy.

In a possible implementation manner, the first terminal device determines the first bitmap according to K mapping relationships.

Exemplarily, when K is 3 and the mapping relationship is a random mapping function, the first terminal device determines the positions of the three bits in the first bitmap in the wake-up information according to the three random mapping functions. The position of a bit in the wake-up information is the first bit position, the first terminal device determines that the position of the second bit in the wake-up information is the third bit position according to the second random mapping function, and the first terminal device determines that the position of the third bit in the wake-up information is the fourth bit position according to the third random mapping function, that is, the first bit map determined by the first terminal device is [1, 3, 4].

Exemplarily, when K is 4 and the mapping relationship is a hash function, the first terminal device determines the positions of the four bits in the first bitmap in the wake-up information according to the four hash functions. Specifically, the first terminal device determines the position of the first bit in the wake-up information as the second bit according to the first hash function, the first terminal device determines the position of the second bit in the wake-up information as the third bit according to the second hash function, the first terminal device determines the position of the third bit in the wake-up information as the fifth bit according to the third hash function, and the first terminal device determines the position of the fourth bit in the wake-up information as the sixth bit according to the fourth hash function, that is, the first bitmap determined by the first terminal device is [1, 3, 5, 6].

It should be noted that the above method of determining the first bitmap according to K mapping relationships is only an example, and this application does not limit this.

In a possible implementation manner, the first terminal device determines the first bitmap according to the second indication information and K mapping relationships.

Specifically, when the first terminal device receives the second indication information from the network device in S404, the first terminal device determines the first bitmap according to the second indication information and the K mapping relationships.

Exemplarily, when the number of bits K corresponding to the first bitmap indicated by the second indication information is 3, and the mapping relationship is a random mapping function, the first terminal device determines the positions of the three bits in the first bitmap in the wake-up information according to the three random mapping functions. Specifically, the first terminal device determines the position of the first bit in the wake-up information as the first bit position according to the first random mapping function, the first terminal device determines the position of the second bit in the wake-up information as the third bit position according to the second random mapping function, and the first terminal device determines the position of the third bit in the wake-up information as the fourth bit position according to the third random mapping function, that is, the first bitmap determined by the first terminal device is [1, 3, 4].

Exemplarily, when the number of bits K corresponding to the first bitmap indicated by the second indication information is 4, and the mapping relationship is a hash function, the first terminal device determines the positions of the 4 bits in the first bitmap in the wake-up information according to the 4 hash functions. Specifically, the first terminal device determines the position of the first bit in the wake-up information as the second bit position according to the first hash function, the first terminal device determines the position of the second bit in the wake-up information as the third bit position according to the second hash function, the first terminal device determines the position of the third bit in the wake-up information as the fifth bit position according to the third hash function, and the first terminal device determines the position of the fourth bit in the wake-up information as the sixth bit position according to the fourth hash function, that is, the first bitmap determined by the first terminal device is [1, 3, 5, 6].

It should be noted that the above method of determining the first bitmap according to the second indication information and K mapping relationships is only an example, and this application does not limit this.

S407, determining whether it needs to be awakened according to the first bitmap.

Specifically, after the first terminal device determines its corresponding first bitmap, the terminal device determines whether the K bits indicated by the first bitmap are wake-up agreed values, and further determines whether the terminal device needs to be woken up.

It should be noted that the above-mentioned process of S407 is similar to the process of S307, and its detailed description is omitted here to avoid redundancy.

Optionally, S408, the terminal device receives a paging message within a main link time period corresponding to the WUR sending cycle or sending period.

Optionally, S409, the terminal device listens to the WUR signal on the WUR link.

Based on the above scheme, the network device configures the wake-up information of fixed length according to the pre-configured K mapping relationships, indicating whether multiple terminal devices need to be awakened, so that no matter how many terminal devices are paged, it is not necessary to transmit the UE ID of each terminal device, thereby reducing the information bit rate indicating whether multiple terminal devices are awakened, thereby saving spectrum resources and improving spectrum resource utilization. At the same time, the number of bits corresponding to different terminal devices can be determined according to the wake-up priority or paging delay priority of different terminal devices. The higher the priority of the paging delay, the more bits the terminal device corresponds to, thereby reducing the false alarm rate of the terminal device; the lower the wake-up priority, the fewer bits the terminal device corresponds to, thereby reducing the computational complexity of the terminal device.

It is understood that the examples in Figures 2 to 4 of the embodiments of the present application are only for the convenience of those skilled in the art to understand the embodiments of the present application, and are not intended to limit the embodiments of the present application to the specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes based on the examples in Figures 2 to 4, and such modifications or changes also fall within the scope of the embodiments of the present application.

It can also be understood that some optional features in the embodiments of the present application may not depend on other features in some scenarios, or may be combined with other features in some scenarios, without limitation.

It can also be understood that the solutions in the various embodiments of the present application can be used in reasonable combination, and the explanations or descriptions of the various terms appearing in the embodiments can be mutually referenced or explained in the various embodiments, without limitation.

It can also be understood that the sizes of the various digital serial numbers in the embodiments of the present application do not mean the order of execution, but are only distinguished for the convenience of description and should not constitute any limitation on the implementation process of the embodiments of the present application.

It can also be understood that in the various embodiments of the present application, some message names are involved, such as wake-up information or first indication information, etc. It should be understood that their naming does not limit the protection scope of the embodiments of the present application.

It can also be understood that in the above-mentioned various method embodiments, the methods and operations implemented by the terminal device can also be implemented by components that can be used by the terminal device (such as chips or circuits); in addition, the methods and operations implemented by the network device can also be implemented by components that can be used by the network device (such as chips or circuits), without limitation. Corresponding to the methods given in the above-mentioned various method embodiments, the embodiments of the present application also provide corresponding devices, which include modules for executing the corresponding embodiments of the above-mentioned various method embodiments. The module can be software, hardware, or a combination of software and hardware. It can be understood that the technical features described in the above-mentioned various method embodiments are also applicable to the following device embodiments.

It should be understood that the network device or terminal device can perform some or all of the steps in the above embodiments, and these steps or operations are only examples. The embodiments of the present application can also perform other operations or variations of various operations. In addition, each step can be performed in a different order presented in the above embodiments, and it is possible not to perform all the operations in the above embodiments.

The communication method provided by the embodiment of the present application is described in detail above in conjunction with Figures 2 to 4, and the communication device provided by the embodiment of the present application is described in detail below in conjunction with Figures 5 to 7. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, and therefore, the content not described in detail can be referred to the method embodiment above, and for the sake of brevity, some content will not be repeated.

Fig. 5 is a schematic block diagram of a communication device provided in an embodiment of the present application. The device 500 includes a transceiver unit 510, which can be used to implement corresponding communication functions. The transceiver unit 510 can also be called a communication interface or a communication unit.

Optionally, the device 500 may further include a processing unit 520, and the processing unit 520 may be used for performing data processing.

Optionally, the device 500 also includes a storage unit, which can be used to store instructions and/or data, and the processing unit 520 can read the instructions and/or data in the storage unit so that the device implements the actions of different terminal devices in the aforementioned method embodiments, for example, the actions of a network device or a terminal device.

The device 500 can be used to execute the actions performed by the network device or terminal device in the above method embodiments. In this case, the device 500 can be a network device or a terminal device, or a component of a network device or a terminal device. The transceiver unit 510 is used to execute the transceiver-related operations of the network device or the terminal device in the above method embodiments, and the processing unit 520 is used to execute the processing-related operations of the network device or the terminal device in the above method embodiments.

It should also be understood that the device 500 here is embodied in the form of a functional unit. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a merged logic circuit and/or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the device 500 can be specifically a network device or a terminal device in the above-mentioned embodiment, and can be used to execute the various processes and/or steps corresponding to the network device or the terminal device in the above-mentioned method embodiments, or the device 500 can be specifically a network device or a terminal device in the above-mentioned embodiment, and can be used to execute the various processes and/or steps corresponding to the network device or the terminal device in the above-mentioned method embodiments. To avoid repetition, it will not be repeated here.

The apparatus 500 of each of the above-mentioned schemes has the function of implementing the corresponding steps performed by the network device or terminal device in the above-mentioned method, or the apparatus 500 of each of the above-mentioned schemes has the function of implementing the corresponding steps performed by the network device or terminal device in the above-mentioned method. The functions can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor, respectively performing the sending and receiving operations and related processing operations in each method embodiment.

In addition, the transceiver unit 510 may also be a transceiver circuit (for example, it may include a receiving circuit and a sending circuit), and the processing unit may be So the processing circuit.

It should be noted that the device in FIG. 5 may be a network element or device in the aforementioned embodiment, or may be a chip or a chip system, such as a system on chip (SoC). The transceiver unit may be an input and output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip. This is not limited here.

As shown in Fig. 6, an embodiment of the present application provides another communication device 600. The device 600 includes a processor 610, the processor 610 is coupled to a memory 620, the memory 620 is used to store computer programs or instructions and/or data, and the processor 610 is used to execute the computer programs or instructions stored in the memory 620, or read the data stored in the memory 620, so as to execute the methods in the above method embodiments.

Optionally, there are one or more processors 610 .

Optionally, the memory 620 is one or more.

Optionally, the memory 620 is integrated with the processor 610 or provided separately.

Optionally, as shown in Fig. 6, the device 600 further includes a transceiver 630, and the transceiver 630 is used for receiving and/or sending signals. For example, the processor 610 is used for controlling the transceiver 630 to receive and/or send signals.

As a solution, the device 600 is used to implement the operations performed by the network device or the terminal device in the above various method embodiments.

For example, the processor 610 is used to execute the computer program or instructions stored in the memory 620 to implement the relevant operations of the terminal device in each method embodiment above. For example, the terminal device in any one of the embodiments shown in Figures 2 to 4, or the method of the terminal device in any one of the embodiments shown in Figures 2 to 4.

It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (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 also be any conventional processor, etc.

It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory and/or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, a RAM may be used as an external cache. By way of example and not limitation, RAM includes the following forms: static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.

It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

As shown in FIG7 , an embodiment of the present application provides a chip system 700 . The chip system 700 (or also referred to as a processing system) includes a logic circuit 710 and an input/output interface 720 .

Among them, the logic circuit 710 can be a processing circuit in the chip system 700. The logic circuit 710 can be coupled to the storage unit and call the instructions in the storage unit so that the chip system 700 can implement the methods and functions of each embodiment of the present application. The input/output interface 720 can be an input/output circuit in the chip system 700, outputting information processed by the chip system 700, or inputting data or signaling information to be processed into the chip system 700 for processing.

As a solution, the chip system 700 is used to implement the operations performed by the network device or the terminal device in the above various method embodiments.

For example, the logic circuit 710 is used to implement operations related to processing by the network device in the above method embodiments, such as operations related to processing by the terminal device in any one of the embodiments shown in Figures 2 to 4; the input/output interface 720 is used to implement operations related to sending and/or receiving by the terminal device in the above method embodiments, such as operations related to sending and/or receiving performed by the terminal device in any one of the embodiments shown in Figures 2 to 4.

The present application also provides a computer-readable storage medium on which is stored information for implementing the above-mentioned method embodiments by the network Computer instructions for a method performed by a device or terminal device.

For example, when the computer program is executed by a computer, the computer can implement the method executed by the network device or the terminal device in each embodiment of the above method.

An embodiment of the present application also provides a computer program product, comprising instructions, which, when executed by a computer, implement the methods performed by a network device or a terminal device in the above-mentioned method embodiments.

The explanation of the relevant contents and beneficial effects of any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, which will not be repeated here.

In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can 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. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. For example, the computer can be a personal computer, a server, or a network device, etc. The computer instructions can 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 can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media integrations. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)). For example, the aforementioned available medium includes, but is not limited to, various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A communication method, comprising:

Receive wake-up information on a wake-up radio WUR link according to a first modulation mode, the wake-up information including a plurality of bits, the wake-up information being used to wake up N terminal devices, the N terminal devices corresponding one-to-one to N bitmaps, each of the bitmaps including K bits of the plurality of bits, K being less than N, and N and K being positive integers;

Determine a first bitmap according to the wake-up information, where the first bitmap is one of the N bitmaps;

Determine whether to be awakened according to the first bitmap.
The method according to claim 1, characterized in that the determining the first bitmap according to the wake-up information comprises:

receiving first indication information, where the first indication information is used to indicate positions of K bits in the first bitmap in the wake-up information;

The first bitmap is determined according to the first indication information and the wake-up information.
The method according to claim 2, wherein the receiving the first indication information comprises:

The first indication information is received on the primary link.
The method according to claim 1, characterized in that the determining the first bitmap according to the wake-up information comprises:

Determine the positions of the K bits in the wake-up information according to the K mapping relationships;

The first bitmap is determined according to positions of the K bits in the wake-up information and the wake-up information.
The method according to claim 1, characterized in that the determining the first bitmap according to the wake-up information comprises:

receiving second indication information, where the second indication information is used to indicate the number K of bits corresponding to the first bitmap;

Determine the positions of the K bits in the wake-up information according to the second indication information and the K mapping relationships;

The first bitmap is determined according to positions of the K bits in the wake-up information and the wake-up information.
The method according to claim 5, characterized in that the receiving the second indication information comprises:

The second indication information is received on the primary link.
The method according to any one of claims 1 to 6 is characterized in that determining whether it is necessary to wake up according to the first bitmap includes: when the K bits are all wake-up agreed values, determining that it is necessary to wake up.
The method according to claim 7, characterized in that the method further comprises:

Receive paging messages during the main link time period corresponding to the WUR sending cycle or sending period.
The method according to any one of claims 1 to 6 is characterized in that determining whether it is necessary to be awakened based on the first bitmap includes: when at least one bit among the K bits is not a wake-up agreed value, determining that it is not necessary to be awakened.
The method according to claim 9, characterized in that the method further comprises:

Listen for WUR signals on the WUR link.
The method according to any one of claims 1 to 10, characterized in that the receiving of wake-up information on the WUR link according to the first modulation mode comprises:

The first modulation mode is demodulated by using envelope detection, and the wake-up information is received.
The method according to claim 11, characterized in that the first modulation mode includes any one of the following:

On-off keying OOK modulation, frequency shift keying FSK modulation, amplitude shift keying ASK modulation.
A communication method, comprising:

Determine wake-up information, where the wake-up information includes multiple bits, and the wake-up information is used to wake up N terminal devices, where the N terminal devices correspond one-to-one to N bitmaps, and each of the bitmaps includes K bits of the multiple bits, where K is less than N, and N and K are positive integers;

The wake-up information is sent on the wake-up radio WUR link using a first modulation method, and the first modulation method is demodulated using envelope detection.
The method according to claim 13, wherein determining the wake-up information comprises:

Determine N first indication information, where one first indication information corresponds to one awakened terminal device, and the first indication information is used to indicate the position of K bits in the bitmap in the wake-up information;

The wake-up information is determined according to the N first indication information.
The method according to claim 14, characterized in that the method further comprises:

The N first indication information are sent on the primary link.
The method according to claim 13, wherein determining the wake-up information comprises:

Determine a bitmap according to K mapping relationships, where the mapping relationship is used to determine a position of one of the K bits in the wake-up information;

The wake-up information is determined according to the N bitmaps.
The method according to claim 13, wherein determining the wake-up information comprises:

Determine second indication information, where the second indication information is used to indicate the number K of bits corresponding to the bitmap;

Determine a bitmap according to the second indication information and K mapping relationships, where the mapping relationship is used to determine a position of one of the K bits in the wake-up information;

The wake-up information is determined according to the N bitmaps.
The method according to claim 17, characterized in that the method further comprises:

The second indication information is sent on the primary link.
The method according to any one of claims 13 to 18, characterized in that the method further comprises:

The K bits in the N bitmaps are set to wake-up appointment values.
The method according to any one of claims 13 to 19, characterized in that the first modulation mode includes any one of the following:

On-off keying OOK modulation, frequency shift keying FSK modulation, amplitude shift keying ASK modulation.
A communication device, comprising:

A processor, configured to execute a computer program stored in a memory so that the communication device executes the method according to any one of claims 1 to 20.
A computer-readable storage medium, characterized in that a computer program or instruction is stored thereon, characterized in that when the computer program or instruction is executed by a processor, the method as claimed in any one of claims 1 to 20 is executed.
A computer program product comprising instructions which, when run on a computer, cause the method as claimed in any one of claims 1 to 20 to be performed.
A chip system, characterized in that it includes: a processor, used to call and run a computer program or instruction from a memory, so that a communication device equipped with the chip system implements the method as described in any one of claims 1 to 20.