CN117812675A

CN117812675A - Communication method and communication device

Info

Publication number: CN117812675A
Application number: CN202211207783.1A
Authority: CN
Inventors: 铁晓磊; 周涵; 薛祎凡
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2024-04-02
Also published as: WO2024067038A1

Abstract

The embodiment of the application provides a communication method and a communication device, wherein the communication method comprises the following steps: 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, the N terminal devices are in one-to-one correspondence with N bit maps, each bit map comprises K bits in a plurality of bits, K is smaller than N, and N, K is a positive integer; determining a first bitmap according to the wake-up information, wherein the first bitmap is one of N bitmaps; and determining whether to wake up according to the first bitmap. Therefore, whether the terminal equipment needs to be awakened or not can be determined according to the configured awakening information with the fixed length, the information bit rate for indicating whether the plurality of terminal equipment is awakened or not is reduced while the WUR is used for low-power consumption monitoring, the frequency spectrum resources are saved, and the frequency spectrum resource utilization rate is improved.

Description

Communication method and communication device

Technical Field

The embodiment of the application relates to the technical field of wireless communication, in particular to a communication method and a communication device.

Background

To address the power consumption of terminals receiving pages in idle and inactive states, the third generation partnership project (3rd generation partnership project,3GPP) is currently discussing the use of separate low power small circuits to receive page related information, such as wake-up circuits, through which signals received may be referred to as wake-up signals (WUR). A wake-up signal is typically sent on a WUR link using modulation schemes such as on-off keying (OOK) or frequency-shift keying (FSK), so as to reduce power consumption of the monitoring channel. However, the modulation scheme based on OOK or FSK has low spectral efficiency, so that the transmission rate that OOK or FSK can carry is not high. If the number of the paging terminal devices is large, a high transmission rate is required, so that the power consumption of the terminal devices is increased.

Therefore, for multi-paging terminal devices, how to use WUR to monitor low power consumption and reduce power consumption of the terminal device at the same time, and to improve the spectrum resource utilization rate is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a communication method, which is characterized in that through configuring wake-up information with fixed length, terminal equipment determines whether to wake up according to the wake-up information, and when WUR is used for low-power consumption monitoring, the information bit rate for indicating whether to wake up a plurality of terminal equipment is reduced, so that spectrum resources are saved, and the utilization rate of the spectrum resources is improved.

In a first aspect, a method of communication is provided. The method may be performed by the terminal device or may be performed by a component (e.g., a chip or a circuit) of the terminal device, which is not limited thereto, and for convenience of description, an example of the method performed by the terminal device will be described below.

The method may include: receiving wake-up information on a wake-up radio WUR link according to a first modulation scheme, the wake-up information including a plurality of bits, the wake-up information being used for waking up N terminal devices, the N terminal devices being in one-to-one correspondence with N bitmaps, each of the bitmaps including K bits of the plurality of bits, K being smaller than N, N, K being a positive integer; determining a first bitmap according to the wake-up information, wherein the first bitmap is one of the N bitmaps; and determining whether to wake up according to the first bitmap.

Based on the scheme, the information of whether the plurality of terminal devices need to be awakened is indicated by configuring the awakening information with the fixed length, and the UEID of each terminal device does not need to be transmitted, so that the information bit rate for indicating whether the plurality of terminal devices are awakened can be reduced, the frequency spectrum resource is saved, and the frequency spectrum resource utilization rate is improved.

With reference to the first aspect, in certain implementation manners of the first aspect, determining a first bitmap according to the wake-up information includes: receiving first indication information, wherein the first indication information is used for indicating the positions of K bits in the first bitmap in the wake-up information; and determining the first bitmap according to the first indication information and the wake-up information.

Based on the scheme, the terminal equipment can directly receive the first indication information from the network equipment and determine the first bitmap according to the first indication information, so that the flexibility of the scheme of determining the first bitmap by the terminal equipment is improved.

With reference to the first aspect, in certain implementation manners of the first aspect, receiving first indication information includes: the first indication information is received at the main link.

Based on the scheme, the terminal equipment can receive the first indication information in the main link, so that the flexibility of the scheme for receiving the first indication information is improved.

With reference to the first aspect, in certain implementation manners of the first aspect, determining a first bitmap according to the wake-up information includes: determining the positions of the K bits in the wake-up information according to the K mapping relations; the first bitmap is determined according to the position of the K bits in the wake-up information and the wake-up information.

Based on the scheme, the terminal equipment determines the positions of K bits corresponding to the terminal equipment in the wake-up information according to the mapping relation preconfigured with the network equipment, further determines the first bitmap corresponding to the terminal equipment, and increases the flexibility of the scheme of determining the first bitmap by the terminal equipment.

With reference to the first aspect, in certain implementation manners of the first aspect, determining a first bitmap according to the wake-up information includes: receiving second indication information, wherein the second indication information is used for indicating the number K of bits corresponding to the first bitmap; determining the positions of the K bits in the wake-up information according to the second indication information and the K mapping relations; the first bitmap is determined according to the position of the K bits in the wake-up information and the wake-up information.

Based on the scheme, the terminal equipment can firstly determine the number of bits included in the first bitmap corresponding to the terminal equipment through the second indication information, and further determine the positions of K bits corresponding to the terminal equipment in the wake-up information according to the preconfigured mapping relation, so that the first bitmap is determined, and the flexibility of the scheme of determining the first bitmap by the terminal equipment is improved.

With reference to the first aspect, in certain implementation manners of the first aspect, receiving the second indication information includes: the second indication information is received over the main link.

Based on the scheme, the terminal equipment can receive the second indication information in the main link, so that the flexibility of the scheme for receiving the second indication information is improved.

With reference to the first aspect, in certain implementation manners of the first aspect, determining whether the wake-up is needed according to the first bitmap includes: and when the K bits are all the wake-up default values, determining that the K bits need to be waken up.

Based on the above scheme, the terminal device determines that the terminal device needs to be awakened by determining whether the positions of the K bits indicated in the first bitmap in the awakening information are set to an awakening default value agreed with the network device, when the K bits are all the awakening default value, so that the cost of determining whether the terminal device is awakened or not is reduced, and the flexibility of the scheme for determining whether the terminal device is awakened is increased.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: and receiving the paging message in a main link time period corresponding to the WUR transmission period or transmission period.

With reference to the first aspect, in certain implementation manners of the first aspect, determining whether the wake-up is needed according to the first bitmap includes: when at least one of the K bits is not a wake-up establishment value, it is determined that wake-up is not required.

Based on the scheme, the terminal equipment determines that the terminal equipment does not need to be awakened by determining whether the position of K bits indicated in the first bitmap in the awakening information is set to an awakening preset value agreed with the network equipment or not, and when at least one bit in the K bits is not the awakening preset value, the cost of determining whether the terminal equipment is awakened or not is reduced, and the flexibility of the scheme for determining whether the terminal equipment is awakened or not is improved.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: monitoring WUR signals on WUR links.

With reference to the first aspect, in some implementations of the first aspect, receiving wake-up information on a WUR link according to a first modulation scheme includes: demodulating the first modulation mode by using an envelope detection mode, and receiving the wake-up information.

Based on the scheme, the terminal equipment receives the wake-up information on the WUR link in an envelope detection mode, so that the power consumption and the cost of the terminal equipment are reduced.

With reference to the first aspect, in certain implementations of the first aspect, the first modulation mode includes any one of: on-off keying OOK modulation, frequency shift keying FSK modulation, amplitude shift keying ASK modulation.

In a second aspect, a communication method is provided. The method may be performed by the network device or may be performed by a component (e.g., a chip or a circuit) of the network device, which is not limited thereto, and for convenience of description, the following description will be given by taking an example of the method performed by the network device.

The method may include: determining wake-up information, wherein the wake-up information comprises a plurality of bits, the wake-up information is used for waking up N terminal devices, the N terminal devices are in one-to-one correspondence with N bitmaps, each bitmap comprises K bits in the plurality of bits, K is smaller than N, and N, K is a positive integer; the wake-up information is transmitted on the wake-up radio WUR link using a first modulation scheme that is demodulated using an envelope detection scheme.

Based on the above scheme, the network device indicates whether the plurality of terminal devices need to wake up by configuring the wake-up information with a fixed length, so that no matter how many terminal devices are paged, the ue id of each terminal device does not need to be transmitted, thereby reducing the information bit rate indicating whether the plurality of terminal devices wake up, and saving spectrum resources.

With reference to the second aspect, in certain implementations of the second aspect, determining wake-up information includes: determining N pieces of first indication information, wherein one piece of first indication information corresponds to one piece of awakened terminal equipment, and the first indication information is used for indicating the positions of K bits in the bitmap in the awakening information; and determining the wake-up information according to the N pieces of first indication information.

Based on the above scheme, the network device determines a first indication information for each terminal device to be paged, where the first indication information is used to indicate the positions of K bits corresponding to the terminal device in the wake-up information, and further determines wake-up information with a fixed length according to the first indication information, so that flexibility of the scheme of determining the wake-up information by the network device is increased.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: the N pieces of first indication information are sent in the main link.

Based on the above scheme, the network device can send the N pieces of first indication information in the main link, so that flexibility of the scheme for sending the N pieces of first indication information is increased.

With reference to the second aspect, in certain implementations of the second aspect, determining wake-up information includes: determining a bitmap according to K mapping relations, wherein one mapping relation is used for determining the position of one bit in the K bits in the wake-up information; and determining the wake-up information according to the N bit maps.

Based on the scheme, the network equipment determines the bitmap corresponding to the terminal equipment according to the mapping relation preconfigured with the terminal equipment, and further determines the wake-up information with fixed length according to N bitmaps corresponding to N terminal equipment respectively, so that the flexibility of the scheme of determining the wake-up information by the network equipment is improved.

With reference to the second aspect, in certain implementations of the second aspect, determining wake-up information includes: determining second indicating information, wherein the second indicating information is used for indicating the number K of bits corresponding to the bitmap; determining a bitmap according to the second indication information and K mapping relations, wherein one mapping relation is used for determining the position of one bit in the K bits in the wake-up information; and determining the wake-up information according to the N bit maps.

Based on the above scheme, the network device determines N pieces of second indication information for indicating the number of bits included in the bitmaps corresponding to the N pieces of terminal devices according to the awakened priority of the terminal devices or the priority of the paging delay, further determines the bitmaps corresponding to the terminal devices according to the mapping relation preconfigured together with the terminal devices, further determines the awakening information with fixed length according to the N bitmaps corresponding to the N pieces of terminal devices respectively, and increases the flexibility of the scheme of determining the awakening information by the network device. Meanwhile, the number of bits corresponding to different terminal equipment is determined according to the wake-up priority or the paging delay priority of the different terminal equipment, and the higher the paging delay priority is, the more the number of bits corresponding to the terminal equipment is, so that the false alarm rate of the terminal equipment can be reduced; the lower the wake-up priority is, the fewer the number of bits corresponding to the terminal equipment is, so that the computational complexity of the terminal equipment is reduced.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: the second indication information is transmitted over the main link.

Based on the above scheme, the network device can send the N pieces of second indication information in the main link, so that flexibility of the scheme for sending the N pieces of second indication information is increased.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: the K bits in the N bitmaps are set to a wakeup schedule value.

Based on the above scheme, the network device sets K bits in bitmaps respectively corresponding to N terminal devices in the wake-up information to a wake-up configuration value agreed with the terminal devices, so that the terminal devices determine whether to wake up according to the wake-up information.

With reference to the second aspect, in certain implementations of the second aspect, 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.

In a third aspect, there is provided a communication apparatus, including a unit for performing the method as described in the first aspect, where the communication apparatus may be a terminal device, or may be implemented by a chip or a circuit provided in the terminal device, which is not limited in this application.

The communication device includes:

the receiving and transmitting unit is used for receiving wake-up information on a wake-up radio WUR link according to a first modulation mode, the wake-up information comprises a plurality of bits, the wake-up information is used for waking up N terminal devices, the N terminal devices are in one-to-one correspondence with N bitmaps, each bitmap comprises K bits in the plurality of bits, and K is smaller than N and N, K is a positive integer; the processing unit is used for determining a first bitmap according to the wake-up information, wherein the first bitmap is one of the N bitmaps; and the processing unit is also used for determining whether the first bitmap needs to be awakened or not according to the first bitmap.

With reference to the third aspect, in some implementations of the third aspect, the transceiver is further configured to receive first indication information, where the first indication information is used to indicate a position of K bits in the first bitmap in the wake-up information; the processing unit is further configured to determine the first bitmap according to the first indication information and the wake-up information.

With reference to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to receive the first indication information in a main link.

With reference to the third aspect, in some implementations of the third aspect, the processing unit is further configured to determine a position of the K bits in the wake-up information according to the K mapping relationships; and the processing unit is also used for determining the first bitmap according to the positions of the K bits in the wake-up information and the wake-up information.

With reference to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to receive second indication information, where the second indication information is used to indicate a number K of bits corresponding to the first bitmap; the processing unit is also used for determining the positions of the K bits in the wake-up information according to the second indication information and the K mapping relations; and the processing unit is also used for determining the first bitmap according to the positions of the K bits in the wake-up information and the wake-up information.

With reference to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to receive the second indication information in the main link.

With reference to the third aspect, in some implementations of the third aspect, when the K bits are all wakeup about values, the processing unit is further configured to determine that the K bits need to be waken.

With reference to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to receive the paging message in a main link period corresponding to a WUR transmission period or a transmission period.

With reference to the third aspect, in some implementations of the third aspect, when at least one bit of the K bits is not a wake-up establishment value, the processing unit is further configured to determine that wake-up is not required.

With reference to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to monitor WUR signals on a WUR link.

With reference to the third aspect, in some implementations of the third aspect, the processing unit is further configured to demodulate the first modulation mode using an envelope detection mode, and receive the wake-up information.

With reference to the third aspect, in some implementations of the third aspect, 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.

The explanation and beneficial effects of the content related to the communication device provided in the third aspect may refer to the method shown in the first aspect, which is not described herein.

In a fourth aspect, a communication apparatus is provided, including a unit configured to perform the method shown in the second aspect, where the communication apparatus may be a UE, or may be implemented by a chip or a circuit disposed in the UE, which is not limited in this application.

The communication device includes:

the processing unit is used for determining wake-up information, the wake-up information comprises a plurality of bits, the wake-up information is used for waking up N terminal devices, the N terminal devices are in one-to-one correspondence with N bitmaps, each bitmap comprises K bits in the plurality of bits, K is smaller than N, and N, K is a positive integer; and a transceiver unit configured to transmit the wake-up information on the wake-up radio WUR link using a first modulation scheme, where the first modulation scheme is demodulated using an envelope detection scheme.

With reference to the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to 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 positions of K bits in the bitmap in the awakening information; and the processing unit is also used for determining the wake-up information according to the N pieces of first indication information.

With reference to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to send the N pieces of first indication information on the main link.

With reference to the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to determine one of the bitmaps according to K mapping relationships, where one of the K bits is used to determine a position of the one of the K bits in the wake-up information; and the processing unit is also used for determining the wake-up information according to the N bit maps.

With reference to the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to determine second indication information, where the second indication information is used to indicate a number K of bits corresponding to one bitmap; the processing unit is further used for determining a bitmap according to the second indication information and K mapping relations, and one mapping relation is used for determining the position of one bit of the K bits in the wake-up information; and the processing unit is also used for determining the wake-up information according to the N bit maps.

With reference to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to send the second indication information on the main link.

With reference to the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to set the K bits in the N bitmaps to a wake-up default value.

With reference to the fourth aspect, in some implementations of the fourth aspect, 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.

In a fifth aspect, there is provided a communication apparatus comprising: a memory for storing a program; at least one processor configured to execute a computer program or instructions stored in a memory to perform a method as possible in the first or second aspect.

In one implementation, the apparatus is a terminal device.

In another implementation, the apparatus is a chip, a system-on-chip, or a circuit for use in a terminal device.

In a sixth aspect, the present application provides a processor configured to perform the method provided in the above aspects.

The operations such as transmitting and acquiring/receiving, etc. related to the processor may be understood as operations such as outputting and receiving, inputting, etc. by the processor, or may be understood as operations such as transmitting and receiving by the radio frequency circuit and the antenna, if not specifically stated, or if not contradicted by actual function or inherent logic in the related description, which is not limited in this application.

In a seventh aspect, a computer readable storage medium is provided, the computer readable storage medium storing program code for execution by a device, the program code comprising means for performing a possible implementation of the first or second aspect described above.

In an eighth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the possible implementation of the first or second aspect described above.

In a ninth aspect, a chip is provided, the chip includes a processor and a communication interface, the processor reads instructions stored on a memory through the communication interface, and the method of the possible implementation manner of the first aspect or the second aspect is performed.

Optionally, as an implementation manner, the chip further includes a memory, where a computer program or an instruction is stored in the memory, and the processor is configured to execute the computer program or the instruction stored in the memory, where the processor is configured to execute the method of the possible implementation manner of the first aspect or the second aspect when the computer program or the instruction is executed.

A tenth aspect provides a communication system comprising one or more of the above terminal device and network device

Drawings

Fig. 1 shows a schematic diagram of a network architecture suitable for use in embodiments of the present application.

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

Fig. 3 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.

Fig. 5 shows a schematic block diagram of a communication device 500 provided in an embodiment of the present application.

Fig. 6 shows a schematic block diagram of another communication device 600 provided by an embodiment of the present application.

Fig. 7 shows a schematic diagram of a chip system 700 according to an embodiment of the present application.

Detailed Description

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

Fig. 1 shows a communication system 100 applicable to the embodiment of the present application, where the communication system 100 includes a network device 110 and terminal devices (terminal device 120, terminal device 130, terminal device 140), where the network device 110 is responsible for bi-directional communication with a plurality of terminal devices, for example, the network device 110 shown in fig. 1 sends downlink data to the terminal devices (for example, terminal device 120, terminal device 130 in fig. 1), or the network device 110 receives uplink data from the terminal devices (for example, terminal device 140 in fig. 1). It should be understood that the number of network devices and terminal devices shown in fig. 1 is merely illustrative and that any number of network devices and terminal devices may be included in the communication system 100.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) systems, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication systems, fifth generation (5th Generation,5G) systems or New Radio, NR), future sixth generation (6th Generation,6G) systems, and the like.

The terminal device in the embodiments of the present application may refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, a terminal device in a future 6G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., to which embodiments of the present application are not limited.

The network device in this embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a base station (Base Transceiver Station, BTS) in a global system for mobile communications (Global System of Mobile communication, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a base station (NodeB, NB) in a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, an evolved base station (eNB or eNodeB) in an LTE system, a wireless controller in a cloud wireless access network (Cloud Radio Access Network, CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted 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., which is not limited in this application.

It should be understood that the above-described communication system architecture is merely an exemplary illustration, and the communication system architecture to which the embodiments of the present application are applied is not limited, and any communication system architecture capable of implementing the functions of the various network elements described above is applicable to the embodiments of the present application.

The following description and description are provided for convenience in reading.

1. Wake-up radio (WUR):

in idle state or inactive state, the UE calculates a Paging Frame (PF) and a Paging Occasion (PO) position in the PF according to its own UE ID, and receives paging in the PO. The same receiving module is used for the UE in either the idle state or inactive state to execute the paging receiving procedure or the UE in the connected state to receive data. In this application, we will refer to the receiver that performs these functions (or performs the relevant steps) as the primary receiver (or primary circuit).

To further reduce the power consumption of the UE, a separate low power small circuit or a part of the devices in the multiplexed main receiver may be used to form a low power small circuit to receive the paging related message, where the small circuit may be called a wake-up circuit or a low power circuit or another name, and the signal received by the wake-up circuit may be called WUR.

2. On Off Keying (OOK) modulation:

OOK modulation is one way to carry information by whether or not to send a carrier signal. As an example, the sinusoidal carrier is turned on and off with a unipolar non-return-to-zero code sequence. Specifically, OOK modulation encodes a carrier clock signal with an input signal, and when the input signal is high/low, the modulator outputs the carrier clock signal, and when the input signal is low/high, the modulator outputs 0. OOK modulation may be implemented by multipliers and switching circuits. The carrier is switched on or off under the control of the digital signal 1 or 0, and is switched on in the state that the signal is 1, and at the moment, the carrier appears on the transmission channel; in the state of signal 0, the carrier is turned off, and no carrier is transmitted on the transmission channel. The receiving end can restore the 1 and 0 of the digital signal according to the existence of the carrier wave.

3. Frequency-shift keying (FSK) modulation:

FSK modulation is the modulation of the information that needs to be carried by controlling the position of the carrier frequency with a digital signal.

4. Amplitude-shift keying (FSK) modulation:

ASK modulation is a modulation scheme using amplitude keying. ASK modulates the difference of modulated information, adjusts the amplitude of a carrier wave (sine wave) whose amplitude varies with the modulated information.

It will be appreciated that the term "and/or" is merely one association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The terms referred to in the present application are briefly described above, and will not be repeated in the following examples. The communication method provided in the embodiment of the present application will be described in detail below with reference to the accompanying drawings. The embodiments provided in the present application may be applied to the network architecture shown in fig. 1 to 3, and are not limited thereto.

Based on the architecture shown in fig. 1, the overall power consumption or average power consumption of the terminal in the idle state can be reduced by transmitting the wake-up signal on the WUR link by using modulation schemes such as OOK, FSK, ASK, and the like. However, since the spectrum efficiency is low based on modulation schemes such as OOK, FSK, ASK, etc., the transmission rate that can be carried by modulation schemes such as OOK, FSK, ASK, etc., is not high. If the number of paging terminal devices is large and specific paging ID information or terminal ue ID information is indicated to each terminal device, more information needs to be transmitted, and a higher transmission rate is required, so that the subcarrier interval of the carrier signal or the bandwidth of the signal needs to be increased, which may cause interference to the existing NR signal or large spectrum waste.

The application provides a communication method, which is characterized in that a terminal device determines whether to wake up according to wake-up information by configuring the wake-up information with a fixed length. Since the number of bits of the fixed-length wake-up information is far less than the total number of bits required for indicating the UE id of each UE to be woken up, the WUR signal can be transmitted using the same subcarrier spacing as the NR system while the WUR is used for low power consumption monitoring, and the interference problem caused between different subcarrier spacing orthogonal frequency division multiple access (Orthogonal frequency-division multiplexing, OFDM) signals is avoided. Meanwhile, the WUR information rate required 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 according to an embodiment of the present application. The method 200 may include the following steps.

S210, determining wake-up information.

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

Wherein the wake-up information comprises a plurality of bits.

It should be understood that N terminal devices are terminal devices determined by the network device to wake up in a target period, where N is a positive integer.

Wherein, N terminal equipment corresponds with N bit map one by one.

Specifically, each bitmap includes K bits of a plurality of bits.

Optionally, at least one bit with a different position in the wake-up information is included between any two bitmaps, where K is smaller than N and N, K is a positive integer.

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

For example, the first bitmap corresponding to the first terminal device is [1,3,5], that is, the positions of the 3 bits corresponding to the first terminal device in the wake-up information are respectively 1,3,5 bits, and the second bitmap corresponding to the second terminal device may be [2,6,8] 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 2,6,8 bits; the second bitmap corresponding to the second terminal device may also be [1,3,6] which is the same as the first bitmap portion, that is, the positions of the 3 bits corresponding to the second terminal device in the wake-up information are respectively the 1 st, 3 rd and 6 th bits, which is not limited in the present application.

It should be understood that when the K positions allocated to the terminals by the base station are not good, or the total number of bits of the wake-up information is not enough, a situation may occur in which the two bitmaps of the two terminals are completely overlapped, so that a certain virtual wake-up occurs. For this case, the occurrence of the situation that two bit patterns of different terminals are completely overlapped can be avoided by reasonably allocating K positions of each terminal or using a total number of bits of wake-up information of a reasonable length, which is not limited in the present application.

S220, the wake-up information is sent on the WUR link by using the first modulation mode.

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

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

In one possible implementation manner, the terminal device demodulates the first modulation mode by using an envelope detection mode, and receives the wake-up information.

Specifically, the first modulation scheme 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 a bitmap corresponding to the terminal device according to the wake-up information, and the method 200 may further include:

s230, determining 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 the terminal device in the wake-up information, that is, the bitmaps corresponding to the terminal device according to the wake-up information.

Wherein the first bitmap is one of N bitmaps.

The first terminal device determines the first bitmap corresponding to the first terminal device, and the second terminal device determines the second bitmap corresponding to the second terminal device, which is not limited in the application.

S240, determining whether to wake up according to the first bitmap.

Specifically, after determining the first bitmap, the terminal device determines whether to wake up according to the first bitmap.

In one possible implementation manner, when the terminal device determines that K bits indicated by the first bitmap are all wakeup about values, the terminal device determines that the terminal device needs to be awakened.

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

Alternatively, the wake-up default value may be 1, or may be 0, or may be another value, which is not limited in this application.

Optionally, S241, the paging message is received within a main link period corresponding to the WUR transmission period or transmission period.

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

Illustratively, the time-position relationship between the main link time period and the WUR transmission period or the transmission time period may be set by a pre-configuration or a pre-set manner, or by defining and pre-configuring a minimum time offset between the WUS transmission time period and the main link transmission time period, which is not limited in this application.

In a possible implementation manner, when the terminal device determines that at least one bit of K bits indicated by the first bitmap is not a wake-up default value in the wake-up information, the terminal device determines that the terminal device does not need to be woken up.

Optionally, S242, listening for WUR signals on WUR links.

Specifically, after the terminal device determines that it does not need to wake up, i.e., the terminal device does not wake up the main link, the terminal device listens for WUR signals on the WUR link.

Based on the above scheme, the network device indicates whether the plurality of terminal devices need to wake up by configuring the wake-up information with a fixed length, so that no matter how many terminal devices are paged, the ue id of each terminal device does not need to be transmitted, thereby reducing the information bit rate indicating whether the plurality of terminal devices wake up, saving spectrum resources and improving the spectrum resource utilization rate.

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

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

Specifically, the network device directly determines N pieces of first indication information, where one piece of first indication information corresponds to one awakened terminal device, and one piece of first indication information is used to indicate positions of K bits in a bitmap in the awakening information, and further sets K bits in the N pieces of first indication information as an awakening default value according to the N pieces of first indication information, so as to obtain the awakening information.

It should be noted that, the positions of 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 the same, that is, the positions of at least one bit indicated between any two first indication information in the wake-up information may be different, which is not limited in this application.

It should be understood that when the K positions allocated to the terminals by the base station are not good, or the total number of bits of the wake-up information is not sufficient, a situation may occur in which the two bitmaps of the two terminals are completely overlapped, so that a certain virtual wake-up may occur. For this case, the occurrence of the situation that two bit patterns of different terminals are completely overlapped can be avoided by reasonably allocating K positions of each terminal or using a total number of bits of wake-up information of a reasonable length, which is not limited in the present application.

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

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

Optionally, S211, N pieces of first indication information are sent on the main link.

Specifically, after determining the N pieces of first indication information, the network device sends the corresponding pieces of first indication information to the N pieces of terminal devices in the main link.

It should be understood that, before S210, the network device may configure the first indication information to each terminal device through, for example, higher layer signaling, and then determine the wake-up indication information according to N pieces of first indication information, and after S210, S211 may also not limit the execution sequence of S210 and S211 in the present application.

Accordingly, the N terminal devices receive N pieces of first indication information from the network device in the main link.

One possible implementation way is to determine a bitmap according to K mapping relations and determine wake-up information according to N bitmaps.

Specifically, the network device determines a bitmap according to the K mapping relations, further determines N bitmaps corresponding to the N terminal devices, and sets K bits in the N bitmaps as a wake-up default value, so as to obtain wake-up information.

The K mapping relations are the mapping relations which are preconfigured by the network equipment and the terminal equipment together, and one mapping relation is used for determining the position of one bit in the K bits in the wake-up information.

It should be noted that, the number of the mapping relationships preconfigured by the network device and the terminal device together may be greater than or equal to K, and when the number of the preconfigured mapping relationships is greater than K, the network device randomly selects K mapping relationship determining bitmaps in the preconfigured mapping relationships or selects K mapping relationships according to a preset rule, which is not limited in this application.

Alternatively, the mapping relationship may be a random mapping function, and may also be a hash function, where the input of the random mapping function is information that is known in advance by both the base station and the terminal, for example, information such as a ue id of the terminal, which is not limited in this application.

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

Specifically, the network device determines second indication information, where the second indication information is used to indicate the number K of bits corresponding to one bitmap, determines one bitmap according to the second indication information and K mapping relations, further determines N bitmaps corresponding to N terminal devices, and sets K bits in the N bitmaps as a wakeup setting value, so as to obtain wakeup information.

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

The priority may be a wake-up priority of the terminal device, or may be a priority of paging delay of the terminal device, which is not limited in the present 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 one 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 bitmaps corresponding to the N terminal devices may be the same or different, which is not limited in this application.

It should be noted that, reference may be made to the foregoing descriptions for the K mapping relationships, and detailed descriptions thereof are omitted here for avoiding redundancy.

Optionally, S212, the second indication information is sent in the main link.

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

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

In the following, a first bitmap is determined by a first terminal device, and a manner in which N terminal devices determine corresponding bitmaps is described.

In one possible implementation, the first indication information is received, and the 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 positions of K bits in the first bitmap in the wake-up information, and further determines the first bitmap according to the first indication information and the wake-up information.

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

It should be understood that when the K positions allocated to the terminals by the base station are not good, or the total number of bits of the wake-up information is not sufficient, a situation may occur in which the two bitmaps of the two terminals are completely overlapped, so that a certain virtual wake-up may occur. In this case, the occurrence of the situation that two bit patterns of different terminals are completely overlapped can be avoided by reasonably allocating K positions of each terminal or using a total number of bits of wake-up information of a reasonable length, which is not limited in the present application.

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

In one possible implementation, the position of the K bits in the wake-up information is determined according to the K mapping relations, and the first bitmap is further determined.

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

In one possible implementation, the first bitmap is determined according to the second indication information and the K mapping relations.

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, and further the first terminal device determines the first bitmap according to the second indication information and the K mapping relations.

Optionally, for S220, when the network device uses the first modulation mode to send wake-up information on the WUR link, early warning information and system update information may also be sent, and the method 200 may further include:

s221, early warning information and system update information are sent.

Specifically, when the network device uses the first modulation mode to send wake-up information on the WUR link, the network device sends the early warning information and the system update information to the N terminal devices on the WUR link at the same time.

The early warning information is used for indicating whether the terminal equipment reads system information corresponding to an earthquake and tsunami warning system (earthquake and tsunami warning system, ETWS) and/or a commercial mobile early warning system (commercial mobile alert system, CMAS).

Specifically, the early warning information further includes priority indication information including high priority indication information and low priority indication information.

The high priority indication information is used for indicating a small amount of information about earthquake and tsunami, for example, information about message category (earthquake information, tsunami information and the like) and information for prompting a user by the terminal equipment. The time from the reception of the high priority indication information by the operator to the delivery of the high priority indication information to the terminal device, which has a data size of about several bits, is required to be within 4s according to the specifications of TS22.168 and TS 22.268.

Wherein the low priority indication information is used to indicate information that is not urgent, and the data amount thereof is large, such as information of the purpose of a message (e.g., whether the message is used for testing, training, etc.), information of a safe place, acquisition assistance information, food dispensing time information, etc. The low priority indication information has no explicit requirement of transmission delay and data size.

The system update information is used for indicating whether the terminal equipment needs to read the system information again.

It should be appreciated that in NR, system information of a cell is updated infrequently. If the terminal equipment reads the system information of the cell, the terminal equipment does not read the system information frequently. However, if the cell system information is updated, the terminal device needs to read the updated system information, otherwise, a system error may occur.

For example, the terminal device needs to re-read the system information may be that the cell updates the configuration related to paging, and the terminal device needs to re-read the updated system information, so that the terminal device can correctly receive the paging. The terminal equipment needs to re-read the system information, or the cell updates the configuration related to the random access, and the terminal equipment needs to re-read the updated system information, so that the terminal equipment can successfully initiate the random access, which is not limited in the application.

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

S301, the network equipment determines terminal equipment needing to be awakened.

Specifically, the network device determines N terminal devices that need to wake up in a target period. In other words, the network device determines that N terminal devices within the target period are paged, N being a positive integer.

S302, the network equipment determines N pieces of first indication information.

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

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

Optionally, at least one bit of the K bits indicated by any two bitmaps is different in position in the wake-up information, and the plurality of bits includes K bits, where K is smaller than N and N, K is a positive integer.

Wherein the wake-up information comprises a plurality of bits.

The number of bits of the wake-up information is configured by the host system (e.g., NR, LTE, WCDMA Downlink link, etc.).

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

It should be understood that when the K positions allocated to the terminals by the base station are not good, or the total number of bits of the wake-up information is not enough, a situation may occur in which the two bitmaps of the two terminals are completely overlapped, so that a certain virtual wake-up occurs. For this case, occurrence of the case that two bit patterns of different terminals are completely overlapped can be avoided by reasonably allocating K positions of each terminal or using a total number of bits of wake-up information of a reasonable length. The present application is not limited in this regard.

S303, the network equipment determines wake-up information according to the N pieces of first indication information.

Specifically, after determining N pieces of first indication information, the network device sets K bits in the N pieces of first indication information to a wake-up configuration value, and obtains wake-up information.

The wake-up information is used for waking up N terminal devices.

In one possible implementation, when the wake-up default 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.

For example, when the terminal device to be waken 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], the second bitmap indicated by the first indication information corresponding to the second terminal device is [2,6,8], and the wake-up information determined according to the first bitmap and the second bitmap is [1,1,1,0,1,1,0,1,0,0].

In one possible implementation, when the wake-up default 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.

For example, when the terminal device to be waken 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], the second bitmap indicated by the first indication information corresponding to the second terminal device is [2,6,8], and 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 manner in which the network device determines the wake-up information according to the N first indication information is merely an example, which is not limited in this application.

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

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

Accordingly, the N terminal devices receive N pieces of first indication information from the network device.

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

In one possible implementation manner, the network device carries the N pieces of first indication information in one piece of information and sends the N pieces of first indication information to N pieces of terminal devices.

The network device transmits first information including N pieces of first indication information to the N pieces of terminal devices, respectively, in the main link, by way of example.

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

The network device sends its corresponding first indication information to the first terminal device over the main link, and the network device sends its corresponding first indication information to the second terminal device over the main link, etc.

It should be noted that, the manner in which the network device sends N pieces of first indication information to N pieces of terminal devices is merely an example, which is not limited in this application.

It should be understood that S302 and S304 may be performed before S303 or before S301, which is not limited in this application.

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

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

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

Optionally, the N terminal devices use an envelope detection mode to demodulate the first modulation mode and receive the wake-up information.

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

Note that the order of S304 and S305 is not limited in the present application, and for example, S304 and S305 may be performed simultaneously; s304 may be executed first, and S305 may be executed later; s305 may be executed first, and S304 may be executed later.

S306, N terminal devices determine N corresponding bitmaps.

It should be noted that, for convenience of description, the first terminal device determines the first bitmap will be described below as an example, and other terminal devices in the N terminal devices may determine the corresponding bitmap by referring to the first terminal device to determine the first bitmap.

The first terminal device determines a 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 the first indication information to the first terminal device, and after the first terminal device receives the first indication information, the first bitmap is determined according to the first indication information and the wake-up information.

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

S307, the terminal equipment determines whether to wake up according to the first bitmap.

It should be noted that, for convenience of description, the following description will be given taking an example that the first terminal device determines whether to wake up according to the first bitmap, and other terminal devices in the N terminal devices may determine whether to wake up by referring to the first terminal device.

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

In one possible implementation manner, when the first terminal device determines that K bits indicated by the first bitmap are all wakeup about values, the first terminal device determines that the first terminal device needs to be awakened.

Illustratively, when the wake-up establishment value agreed by the network device with 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 [1,1,1,0,1,1,0,1,0,0], the first terminal device determines that bits of bits 1,3,5 in the wake-up information are 1, respectively. I.e. both are wake-up default values 1, the first terminal device determines that it needs to be woken up.

In one possible implementation, when the terminal device determines that at least one bit of the K bits indicated by the first bitmap is not a wake-up establishment value, the terminal device determines that it is not required to wake up.

For example, when the wake-up setting value agreed 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 [0,1,0,0,1,1,0,1,0,0], the first terminal device determines that bits of bits 1,3,5 in the wake-up information are 0,1, respectively, that is, two bits are not the wake-up setting value 1, and the first terminal device determines that it is not necessary to wake up.

It should be noted that, the manner in which the first terminal device determines whether to wake up according to the first bitmap is merely an example, which is not limited in this application.

Optionally, S308, the terminal device receives the paging message in a main link period corresponding to the WUR transmission period or transmission period.

Illustratively, the time-position relationship between the main link time period and the WUR transmission period or the transmission time period may be set by a pre-configuration or a pre-set manner, or by defining and pre-configuring a minimum time offset between the WUS transmission time period and the main link transmission time period, which is not limited in this application. Optionally, S309, the terminal device listens for WUR signals on the WUR link.

Based on the scheme, the network equipment indicates whether the plurality of terminal equipment needs to wake up or not by configuring the wake-up information with the fixed length and the first indication information for indicating the position of the bit corresponding to the terminal equipment in the wake-up information, so that the UEID of each terminal equipment does not need to be transmitted no matter the number of the terminal equipment to be paged, thereby reducing the information bit rate for indicating whether the plurality of terminal equipment wake up or not, saving frequency spectrum resources and improving the frequency spectrum resource utilization rate.

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

S401, the network equipment determines terminal equipment needing to be awakened.

S402, the network equipment determines a bitmap according to the K mapping relations.

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

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

Optionally, at least one bit of the K bits indicated by any two bitmaps may be different in position in the wake-up information, where the plurality of bits includes K bits, K is smaller than N, and N, K is a positive integer.

Wherein the wake-up information comprises a plurality of bits.

It should be noted that, the description of the bitmap in S402 may refer to the description in S302, and the detailed description thereof is omitted here for avoiding redundancy.

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

It should be noted that, the number of the mapping relationships preconfigured by the network device and the terminal device together may be greater than or equal to K, and when the number of the preconfigured mapping relationships is greater than K, the network device randomly selects K mapping relationships in the preconfigured mapping relationships or selects K mapping relationships according to a preset rule to determine the bitmap, which is not limited in this application.

Alternatively, the mapping relationship may be a random mapping function, and may also be a hash function.

Illustratively, the random mapping function is input as information known in advance by both the network and the terminal, e.g., the user ID of the terminal, to which the present application is not limited.

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

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

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

It should be noted that the above manner of determining one bitmap according to K mapping relationships is merely an example, which is not limited in this application.

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

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

For example, 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, that is, the network device determines the positions of 3 bits in the first bitmap in the wake-up information according to the 3 random mapping functions. Specifically, the network device determines that the position of the first bit in the wake-up information is the first bit according to the first random mapping function, the network device determines that the position of the second bit in the wake-up information is the third bit according to the second random mapping function, the network device determines that the position of the third bit in the wake-up information is the fourth bit according to the third random mapping function, and then the first bitmap determined by the network device is [1,3,4].

For example, when the number K of bits 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, that is, 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 that the position of the first bit in the wake-up information is the second bit according to the first hash function, the network device determines that the position of the second bit in the wake-up information is the third bit according to the second hash function, the network device determines that the position of the third bit in the wake-up information is the fifth bit according to the third hash function, the network device determines that the position of the fourth bit in the wake-up information is the sixth bit according to the fourth hash function, and the second bitmap determined by the network device is [1,3,5,6].

It should be noted that, the manner in which the network device determines the bitmap according to the second indication information and the K mapping relationships is merely an example, which is not limited in this application.

S403, the network equipment determines wake-up information according to the N bit diagrams.

Specifically, after the network device determines N bitmaps, K bits in the N bitmaps are set to a wake-up constraint value, so as to obtain wake-up information.

Note that the process of S403 is similar to the process of S303, and detailed description thereof is omitted here to avoid redundancy.

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

Accordingly, the N terminal devices receive N pieces of second indication information from the network device.

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

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

S405, the network device sends wake-up information to N terminal devices on the WUR link using the first modulation scheme.

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

Note that the order of S404 and S405 is not limited in the present application, and for example, S404 and S405 may be performed simultaneously; s404 may be executed first, and S405 may be executed next; s405 may be executed first, and S404 may be executed later.

Note that S404 and S405 may precede S401 or S402 in the present application, and the present application is not limited thereto.

S406, N terminal devices determine N bitmaps.

The first terminal device determines a corresponding first bitmap.

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

It should be noted that, the K mapping relationships may refer to the description in S402, and detailed descriptions thereof are omitted here for avoiding redundancy.

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

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

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

It should be noted that the above manner of determining the first bitmap according to the K mapping relationships is merely an example, which is not limited in this application.

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

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 relations.

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

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

It should be noted that the above manner of determining the first bitmap according to the second indication information and the K mapping relationships is merely an example, which is not limited in this application.

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

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

Note that the process of S407 is similar to the process of S307, and detailed description thereof is omitted here to avoid redundancy.

Optionally, S408, the terminal device receives the paging message in a main link period corresponding to the WUR transmission period or transmission period.

Optionally, S409, the terminal device listens for WUR signals on the WUR link.

Based on the above scheme, the network device configures the fixed-length wake-up information according to the preconfigured K mapping relations, and indicates whether the plurality of terminal devices need to wake up, so that no matter how many terminal devices are paged, the ue id of each terminal device does not need to be transmitted, thereby reducing the information bit rate indicating whether the plurality of terminal devices wake up, saving the spectrum resources, and improving the spectrum resource utilization rate. Meanwhile, the number of bits corresponding to different terminal equipment can be determined according to the wake-up priority or the paging delay priority of the different terminal equipment, and the higher the paging delay priority is, the more the number of bits corresponding to the terminal equipment is, so that the false alarm rate of the terminal equipment can be reduced; the lower the wake-up priority is, the fewer the number of bits corresponding to the terminal equipment is, so that the computational complexity of the terminal equipment is reduced.

It will be appreciated that the examples in fig. 2-4 in the embodiments of the present application are merely for convenience of understanding the embodiments of the present application by those skilled in the art, and are not intended to limit the embodiments of the present application to the specific scenarios illustrated. It will be apparent to those skilled in the art from the examples of fig. 2-4 that various equivalent modifications or variations may be made, and such modifications or variations are intended to be within the scope of the embodiments of the present application.

It will also be appreciated that some optional features of the various embodiments of the application may, in some circumstances, be independent of other features, or may, in some circumstances, be combined with other features, without limitation.

It is also to be understood that the aspects of the embodiments of the present application may be used in any reasonable combination, and that the explanation or illustration of the terms presented in the embodiments may be referred to or explained in the various embodiments without limitation.

It should be further understood that the magnitude of the various numerical numbers in the embodiments of the present application do not imply any order of execution, but are merely convenient to distinguish between the embodiments, and should not be construed as limiting the implementation of the embodiments of the present application.

It should be further understood that some message names, such as wake-up information or first indication information, etc., are referred to in the embodiments of the present application, and the naming thereof should not be limited to the protection scope of the embodiments of the present application.

It should also be understood that, in the foregoing embodiments of the methods and operations implemented by the terminal device, the methods and operations may also be implemented by component parts (e.g., chips or circuits) of the terminal device; furthermore, the methods and operations implemented by the network device may also be implemented by, but not limited to, constituent components (e.g., chips or circuits) of the network device. Corresponding to the methods given by the above method embodiments, the embodiments of the present application also provide corresponding apparatuses, where the apparatuses include corresponding modules for performing the above method embodiments. The module may be software, hardware, or a combination of software and hardware. It will be appreciated that the technical features described in the method embodiments described above are equally applicable to the device embodiments described below.

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

The method for communication provided in the embodiments of the present application is described above in detail with reference to fig. 2 to 4, and the communication device provided in the embodiments of the present application is described below in detail with reference to fig. 5 to 7. It should be understood that the descriptions of the apparatus embodiments and the descriptions of the method embodiments correspond to each other, and thus, descriptions of details not shown may be referred to the above method embodiments, and for the sake of brevity, some parts of the descriptions are omitted.

Fig. 5 is a schematic block diagram of a communication device provided in an embodiment of the present application. The apparatus 500 comprises a transceiver unit 510, which transceiver unit 510 may be adapted to implement the respective communication functions. The transceiver unit 510 may also be referred to as a communication interface or a communication unit.

Optionally, the apparatus 500 may further comprise a processing unit 520, and the processing unit 520 may be configured to perform data processing.

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

The apparatus 500 may be configured to perform the actions performed by the network device or the terminal device in the above method embodiments, where the apparatus 500 may be the network device or the terminal device, or a component of the network device or the terminal device, the transceiver unit 510 is configured to perform operations related to the transceiver of the network device or the terminal device in the above method embodiments, and the processing unit 520 is configured to perform operations related to the processing of the network device or the terminal device in the above method embodiments.

It should also be appreciated that the apparatus 500 herein is embodied in the form of functional units. The term "unit" herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the apparatus 500 may be specifically a network device or a terminal device in the foregoing embodiments, and may be used to perform each flow and/or step corresponding to the network device or the terminal device in the foregoing method embodiments, or the apparatus 500 may be specifically a network device or a terminal device in the foregoing embodiments, and may be used to perform each flow and/or step corresponding to the network device or the terminal device in the foregoing method embodiments, which are not repeated herein for avoiding repetition.

The apparatus 500 of each of the above aspects has a function of implementing the corresponding step performed by the network device or the terminal device in the above method, or the apparatus 500 of each of the above aspects has a function of implementing the corresponding step performed by the network device or the terminal device in the above method. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions; for example, the transceiver unit may be replaced by a transceiver (e.g., a transmitting unit in the transceiver unit may be replaced by a transmitter, a receiving unit in the transceiver unit may be replaced by a receiver), and other units, such as a processing unit, etc., may be replaced by a processor, to perform the transceiver operations and related processing operations in the various method embodiments, respectively.

The transceiver unit 510 may be a transceiver circuit (e.g., may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.

It should be noted that the apparatus in fig. 5 may be a network element or a device in the foregoing embodiment, or may be a chip or a chip system, for example: system on chip (SoC). The receiving and transmitting unit can be an input and output circuit and a communication interface; the processing unit is an integrated processor or microprocessor or integrated circuit on the chip. And are not limited herein.

As shown in fig. 6, another communication device 600 is provided in an embodiment of the present application. The apparatus 600 includes a processor 610, the processor 610 being coupled to a memory 620, the memory 620 being for storing computer programs or instructions and/or data, the processor 610 being for executing the computer programs or instructions stored by the memory 620 or for reading data stored by the memory 620 for performing the methods in the method embodiments above.

Optionally, the processor 610 is one or more.

Optionally, the memory 620 is one or more.

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

Optionally, as shown in fig. 6, the apparatus 600 further comprises a transceiver 630, the transceiver 630 being used for receiving and/or transmitting signals. For example, the processor 610 is configured to control the transceiver 630 to receive and/or transmit signals.

As an aspect, the apparatus 600 is configured to implement the operations performed by the network device or the terminal device in the above method embodiments.

For example, the processor 610 is configured to execute a computer program or instructions stored in the memory 620 to implement the relevant operations of the terminal device in the above respective method embodiments. For example, the terminal device in any of the embodiments shown in fig. 2 to 4, or the method of the terminal device in any of the embodiments shown in fig. 2 to 4.

It should be appreciated that the processors referred to in the embodiments of the present application may be central processing units (central processing unit, CPU), but may also be other general purpose processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), off-the-shelf programmable gate arrays (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memories mentioned in the embodiments of the present application may be volatile memories and/or nonvolatile memories. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM). For example, 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 DRAM (SLDRAM), and direct memory bus 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 components, the memory (storage module) may be integrated into the processor.

It should also be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Referring to fig. 7, an embodiment of the present application provides a chip system 700. The system-on-chip 700 (or may also be referred to as a processing system) includes logic 710 and input/output interface 720.

Logic 710 may be a processing circuit in system-on-chip 700. Logic 710 may be coupled to the memory unit to invoke instructions in the memory unit so that system-on-chip 700 may implement the methods and functions of embodiments of the present application. The input/output interface 720 may be an input/output circuit in the chip system 700, and outputs information processed by the chip system 700, or inputs data or signaling information to be processed into the chip system 700 for processing.

As an aspect, the chip system 700 is configured to implement the operations performed by the network device or the terminal device in the above respective method embodiments.

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

The embodiments of the present application also provide a computer readable storage medium having stored thereon computer instructions for implementing the method performed by the network device or the terminal device in the above method embodiments.

For example, the computer program when executed by a computer, enables the computer to implement the method performed by the network device or the terminal device in the embodiments of the method described above.

The embodiments of the present application also provide a computer program product containing instructions that, when executed by a computer, implement a method performed by a network device or a terminal device in the above method embodiments.

The explanation and beneficial effects of the related content in any of the above-mentioned devices can refer to the corresponding method embodiments provided above, and are not repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Furthermore, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may 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 loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. For example, the computer may be a personal computer, a server, or a network device, etc. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. For example, the aforementioned usable media include, but are not limited to, U disk, removable hard disk, read-only memory (ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other various media that can store program code.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, comprising:

receiving wake-up information on a wake-up radio WUR link according to a first modulation mode, wherein the wake-up information comprises a plurality of bits, the wake-up information is used for waking up N terminal devices, the N terminal devices are in one-to-one correspondence with N bitmaps, each bitmap comprises K bits in the plurality of bits, K is smaller than N, and N, K is a positive integer;

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

and determining whether to be awakened according to the first bitmap.

2. The method of claim 1, wherein the determining a first bitmap from the wake-up information comprises:

receiving first indication information, wherein the first indication information is used for indicating the positions of K bits in the first bitmap in the wake-up information;

And determining the first bitmap according to the first indication information and the wake-up information.

3. The method of claim 2, wherein the receiving the first indication information comprises:

the first indication information is received in a main link.

4. The method of claim 1, wherein the determining a first bitmap from the wake-up information comprises:

determining the positions of the K bits in the wake-up information according to the K mapping relations;

and determining the first bitmap according to the positions of the K bits in the wakeup information and the wakeup information.

5. The method of claim 1, wherein the determining a first bitmap from the wake-up information comprises:

receiving second indication information, wherein the second indication information is used for indicating the number K of bits corresponding to the first bitmap;

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

6. The method of claim 5, wherein receiving the second indication information comprises:

The second indication information is received in the main link.

7. The method according to any one of claims 1 to 6, wherein the determining whether or not waking up is required according to the first bitmap comprises: and when the K bits are all the wake-up default values, determining that the K bits need to be waken up.

8. The method of claim 7, wherein the method further comprises:

and receiving the paging message in a main link time period corresponding to the WUR transmission period or transmission period.

9. The method according to any one of claims 1 to 6, wherein the determining whether or not waking up is required according to the first bitmap comprises: and when at least one bit in the K bits is not a wake-up establishment value, determining that the K bits do not need to be waked up.

10. The method according to claim 9, wherein the method further comprises:

monitoring WUR signals on WUR links.

11. The method according to any one of claims 1 to 10, wherein the receiving wake-up information on WUR links according to the first modulation scheme comprises:

and demodulating the first modulation mode by using an envelope detection mode, and receiving the awakening information.

12. The method of claim 11, wherein the first modulation scheme comprises any one of:

13. A method of communication, comprising:

determining wake-up information, wherein the wake-up information comprises a plurality of bits, the wake-up information is used for waking up N terminal devices, the N terminal devices are in one-to-one correspondence with N bitmaps, each bitmap comprises K bits in the plurality of bits, K is smaller than N, and N, K is a positive integer;

the wake-up information is transmitted on a wake-up radio WUR link using a first modulation scheme that is demodulated using an envelope detection scheme.

14. The method of claim 13, wherein the determining wake-up information comprises:

determining N pieces of first indication information, wherein one piece of first indication information corresponds to one piece of awakened terminal equipment, and the first indication information is used for indicating the positions of K bits in the bitmap in the awakening information;

and determining the wake-up information according to the N pieces of first indication information.

15. The method of claim 14, wherein the method further comprises:

And transmitting the N pieces of first indication information on the main link.

16. The method of claim 13, wherein the determining wake-up information comprises:

determining one bitmap according to K mapping relations, wherein one mapping relation is used for determining the position of one bit in the K bits in the wake-up information;

and determining the wake-up information according to the N bit maps.

17. The method of claim 13, wherein the determining wake-up information comprises:

determining second indication information, wherein the second indication information is used for indicating the number K of bits corresponding to one bitmap;

determining one bitmap according to the second indication information and K mapping relations, wherein one mapping relation is used for determining the position of one bit in the K bits in the wake-up information;

and determining the wake-up information according to the N bit maps.

18. The method of claim 17, wherein the method further comprises:

and sending the second indication information on the main link.

19. The method according to any one of claims 13 to 18, further comprising:

And setting the K bits in the N bitmaps to a wake-up setting value.

20. The method according to any one of claims 13 to 19, wherein the first modulation scheme comprises any one of:

21. A communication device, comprising:

a processor for executing a computer program stored in a memory to cause the communication device to perform the method of any one of claims 1 to 20.

22. A computer-readable storage medium, having stored thereon a computer program or instructions, which, when executed by a processor, cause the method according to any of claims 1 to 20 to be performed.

23. A computer program product comprising instructions which, when run on a computer, cause the method of any one of claims 1 to 20 to be performed.

24. A chip system, comprising: a processor for invoking and running computer programs or instructions from memory to cause a communication device in which the system-on-chip is installed to implement the method of any of claims 1-20.