CN110831125A - Method and communication device for sending and receiving paging messages - Google Patents

Abstract

The present application provides a method for sending and receiving paging messages, which can reduce the power consumption of a terminal device for receiving paging messages. The method includes: the terminal device receives the wake-up signal according to the association relationship between the synchronization signal block SSB and the wake-up signal, the wake-up signal carries indication information, and the indication information is used to indicate one or more paging access opportunities PO in the Whether there is a paging message or a paging list, or the indication information is used to indicate whether there is a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH of one or more POs; The PO of the paging message is put to sleep in the PO that does not need to receive the paging message.

Description

Method and communication device for sending and receiving paging messages

technical field

The present application relates to the field of wireless communication, and in particular, to a method and a communication device for sending a paging message, and a method and a communication device for receiving a paging message.

Background technique

In wireless communication systems, beamforming technology is used to limit the energy of transmitted signals in a certain beam direction, which can effectively improve communication efficiency and obtain higher network capacity. In a communication system using beamforming technology, first of all The transmit and receive beams need to be matched to maximize the gain of the transmit and receive ends. In order to achieve full coverage, beam scanning is required on the network side.

In long term evolution (LTE), since both the paging message and the synchronization signal block (SSB) are received by the terminal equipment in the idle state, the paging message and the SSB can be sent in the same way. beam. In other words, the paging message has a quasi co-location (QCL) relationship with the SSB. Before receiving the paging message, the terminal equipment needs to wake up to train the beam in advance. In view of the QCL relationship between the SSB and the paging message, in the prior art, the SSB is used as the beam training signal of the paging message.

However, if the SSB is used as the beam training signal of the paging message, even if the paging message is not sent by the network side, the terminal device still needs to perform blind detection on the physical downlink control channel (PDCCH), and the power consumption of the terminal device is relatively large. .

SUMMARY OF THE INVENTION

The present application provides a method and a communication device for sending and receiving paging messages, which can reduce the power consumption of terminal equipment for receiving paging messages.

In a first aspect, the present application provides a method for receiving a paging message. The method includes: a terminal device receives a wake-up signal according to an association relationship between a synchronization signal block SSB and a wake-up signal, where the wake-up signal carries indication information indicating The information is used to indicate whether there is a paging message or a paging list in one or more paging access occasions PO, or the indication information is used to indicate whether there is a physical downlink control channel PDCCH or a physical downlink shared channel in one or more POs PDSCH; the terminal device determines whether it needs to receive the paging message or detect the PDCCH of the paging message according to the indication information.

In this embodiment of the present application, the wake-up signal may be represented as (wake up signal, WUS).

The wake-up signal signal is an implementation manner of the beam training signal of the paging message, and the beam training signal of the paging message may also be a tracking signal. The beam training signal (for example, a wake-up signal or a tracking signal) and the SSB have an associated relationship. The association relationship is used to indicate the configuration relationship between the beam training signal and the SSB in the time domain and/or the frequency domain. In this way, the terminal device receives the beam training signal according to the association relationship and the time domain position and/or frequency domain position of the SSB. Since the beam training signal (for example, the wake-up signal) carries the indication information, the terminal device can determine whether there is a paging message or a paging list in the absence of a paging occasion according to the indication information, so as to enter sleep, thereby saving power consumption .

It should be understood that these POs that do not have paging messages or paging lists are the POs mentioned in this application that do not need to receive paging messages.

It should be understood that the WUS having the same time domain or frequency domain position as the SSB has the same QCL relationship or has the same beam parameters or is transmitted using the same beam with the SSB.

In addition, if the indication information indicates that there is no PDCCH or PDSCH of the PO, the terminal equipment does not need to receive the paging message.

With reference to the first aspect, in some implementations of the first aspect, the time-frequency position of the wake-up signal satisfies one or more of the following conditions: the time-frequency position of the wake-up signal and the primary synchronization signal PSS in the synchronization signal block SSB is The domain location and/or frequency domain location are the same; the wake-up signal is the same as the time domain location and/or frequency domain location of the secondary synchronization signal SSS in the SSB; the wake-up signal is the same as the time domain location and/or frequency domain location of the physical broadcast channel PBCH in the SSB or the same frequency domain position; the wake-up signal and the PBCH demodulation reference signal DMRS have the same time domain position and/or frequency domain position.

With reference to the first aspect, in some implementations of the first aspect, the wake-up signal occupies n orthogonal frequency division symbols OFDM in the time domain, n is a positive integer, and the n OFDMs satisfy one of the following conditions One or more: the n OFDMs are a subset of symbols occupied by the synchronization signal block SSB in the time domain; the n OFDMs are n OFDMs in a time slot, and the time slot includes 14 or 12 OFDMs.

With reference to the first aspect, in some implementations of the first aspect, the frequency domain position of the wake-up signal satisfies one or more of the following conditions: the wake-up signal is the same as the frequency domain position of the PDCCH or control resource set of the RMSI ; The wake-up signal has the same frequency domain position as the PDCCH of SIB1 or the control resource set; the wake-up signal is the same as the frequency domain position of the RMSI or PDSCH of SIB1; the wake-up signal is the same as the frequency domain position of the PDCCH or control resource set of the paging message The same; the frequency domain resources occupied by the wake-up signal are the same as the frequency domain resources occupied by the sum of the PDCCH or control resource set of SSB and SIB1; the frequency domain resources occupied by the wake-up signal are the PDCCH or control resources of SSB and SIB1 The sum of the frequency domain interval between the set, the SSB and the PDCCH or the control resource set of SIB1 occupies the same frequency domain resources in the frequency domain.

With reference to the first aspect, in some implementations of the first aspect, the indication information is used to indicate whether a paging message or a paging list exists in multiple POs in a discontinuous reception period, or the indication information is used to indicate whether There are PDCCHs or PDSCHs of multiple POs in a discontinuous reception period, the multiple POs belong to a PO group in the discontinuous reception period, and the discontinuous reception period includes two or more PO groups, the There is an intersection between two adjacent PO groups in two or more PO groups, each PO group includes one or more POs, and the method further includes: the terminal device has a search engine in the PO group. The paging message is received in the paging message or the PO of the paging list, and goes to sleep in the PO that does not have the paging message or the paging list in the PO group. Each PO may correspond to one PO paging group.

With reference to the first aspect, in some implementations of the first aspect, the indication information is used to indicate whether a paging message or a paging list exists in multiple POs, or the indication information is used to indicate whether there are PDCCHs or PDCCHs of multiple POs. PDSCH, the multiple POs are in one-to-one correspondence with multiple discontinuous reception periods, each PO in the multiple POs is a PO configured to the terminal device in the corresponding discontinuous reception period, and the method further includes: The terminal device receives the paging message in the POs in which the paging message or the paging list exists among the POs, and goes to sleep in the POs in which the paging message or the paging list does not exist in the POs.

With reference to the first aspect, in some implementations of the first aspect, the wake-up signal further carries one or more of the following information: time index information of the synchronization signal block SSB, frame number information or field indication information, PDCCH blind detection information.

In a second aspect, the present application provides a method for sending a paging message. The method includes: a network device generates a wake-up signal according to an association relationship between an SSB and a wake-up signal, the wake-up signal carries indication information, and the indication information is used to indicate Whether there is a paging message or a paging list in one or more paging access occasions PO, or the indication information is used to indicate whether there is a physical downlink control channel PDCCH or PDSCH of one or more POs; the network device sends the paging information.

With reference to the second aspect, in some implementations of the second aspect, the time-frequency position of the wake-up signal satisfies one or more of the following conditions: the time-frequency position of the wake-up signal and the primary synchronization signal PSS in the synchronization signal block SSB is The domain location and/or frequency domain location are the same; the wake-up signal is the same as the time domain location and/or frequency domain location of the secondary synchronization signal SSS in the SSB; the wake-up signal is the same as the time domain location and/or frequency domain location of the physical broadcast channel PBCH in the SSB or the same frequency domain position; the wake-up signal and the PBCH demodulation reference signal DMRS have the same time domain position and/or frequency domain position.

With reference to the second aspect, in some implementations of the second aspect, the wake-up signal occupies n orthogonal frequency division symbols OFDM in the time domain, n is a positive integer, and the n OFDM satisfies at least one of the following conditions Type: the n OFDMs are a subset of symbols occupied by the SSB in the time domain; the n OFDMs are n OFDMs in a time slot, and the time slot includes 14 or 12 OFDMs.

With reference to the second aspect, in some implementations of the second aspect, the frequency domain position of the wake-up signal satisfies one or more of the following conditions: the wake-up signal and the frequency domain position of the PDCCH of the RMSI or the control resource set The same; the wake-up signal is in the same frequency domain position as the PDCCH of SIB1 or the control resource set; the wake-up signal is in the same frequency domain position as the RMSI or PDSCH of SIB1; the wake-up signal is in the frequency domain of the PDCCH or control resource set of the paging message The positions are the same; the frequency domain resources occupied by the wake-up signal are the same as the frequency domain resources occupied by the sum of the PDCCH or control resource set of the SSB and SIB1; the frequency domain resources occupied by the wake-up signal are the PDCCH of SSB and SIB1 Or the sum of the frequency domain interval between the control resource set, the SSB and the PDCCH or the control resource set of the SIB1 occupies the same frequency domain resources in the frequency domain.

With reference to the second aspect, in some implementations of the second aspect, the method further includes: the network device groups multiple POs in a discontinuous reception period to obtain multiple PO groups, each PO group includes a or multiple POs, wherein there is an intersection between two adjacent PO groups; and the indication information is used to indicate whether there is a paging message or paging in a plurality of POs in a PO group within a discontinuous reception period The list, or the indication information is used to indicate whether there are PDCCHs or PDSCHs of multiple POs in the PO group.

With reference to the second aspect, in some implementations of the second aspect, the indication information is used to indicate whether a paging message or a paging list exists in multiple POs, or the indication information is used to indicate whether there are PDCCHs or PDCCHs of multiple POs. PDSCH, the multiple POs are in one-to-one correspondence with multiple discontinuous reception periods, and each PO in the multiple POs is a PO configured to the terminal device in the corresponding discontinuous reception period.

With reference to the second aspect, in some implementations of the second aspect, the wake-up signal further carries one or more of the following information: time index information of the synchronization signal block SSB, frame number information or field indication information, Blind detection information of PDCCH.

In a third aspect, the present application provides a communication apparatus, the apparatus having the function of a terminal device in the method for implementing the above-mentioned first aspect or any possible implementation manner of the first aspect. These functions can be implemented by hardware, or can also be implemented by hardware executing corresponding software. The hardware or software includes one or more units corresponding to these functions.

Optionally, the communication apparatus may be a terminal device, or may also be a chip configured in the terminal device.

In a fourth aspect, the present application provides a communication apparatus, the communication apparatus having the function of a network device in the method for implementing the above-mentioned second aspect or any possible implementation manner of the second aspect. These functions can be implemented by hardware, or can also be implemented by hardware executing corresponding software. The hardware or software includes one or more units corresponding to these functions.

Optionally, the communication apparatus may be a network device, or may also be a chip configured in the network device.

In a fifth aspect, the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a computer, the computer can execute the first aspect or any possible implementation of the first aspect. method in method.

In a sixth aspect, the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are run on a computer, the computer can execute the second aspect or any possible implementation of the second aspect. method in method.

In a seventh aspect, the present application provides a chip provided by the present application, including a memory and a processor, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory to execute the above-mentioned first aspect and its The method in any possible implementation of the first aspect.

In an eighth aspect, the present application provides a chip, including a memory and a processor, the memory is used for storing a computer program, and the processor is used for calling and running the computer program from the memory to execute any of the above-mentioned second aspect and the second aspect. methods in possible implementations.

Optionally, the above-mentioned memory and the memory may be physically independent units, or the memory may also be integrated with the processor.

In a ninth aspect, the present application provides a computer program product, the computer program product includes computer program code, when the computer program code is run on a computer, the computer is made to execute the above-mentioned first aspect and any one of the possible implementations. method.

In a tenth aspect, the present application provides a computer program product, the computer program product includes computer program code, when the computer program code is run on a computer, the computer is made to execute the third aspect and any possible implementation of the third aspect. method in method.

In the technical solution of the present application, the network device generates and sends the wake-up signal to the terminal device according to the association between the SSB and the wake-up signal, and the wake-up signal carries whether there is a paging message or whether there is a paging in the paging access opportunity PO. The indication information of the list enables the terminal device to know whether there is information about the paging message or the paging list in the PO during the beam training phase of the paging message. Therefore, the terminal device only receives the paging message in the PO whose indication information indicates that the paging message or paging list exists, and goes to sleep in the PO whose indication information indicates that there is no paging message or paging list, which can reduce the reception rate of the terminal device. Power consumption of paging messages.

Description of drawings

FIG. 1 is a wireless communication system 100 suitable for use in embodiments of the present application.

FIG. 2 is an example where the beam training signal does not conflict with the time-frequency position of the SSB.

FIG. 3 is an example of time offset caused by conflicting time-frequency positions of the beam training signal and the SSB.

FIG. 4 is an example of using frequency division multiplexing for beam training signal and SSB to avoid time-frequency position collision.

FIG. 5 is a schematic diagram of a terminal device scanning a beam.

FIG. 6 is a flow chart of sending and receiving paging messages proposed by the present application

Figure 7 is a schematic diagram of adjacent beams.

FIG. 8 is a schematic block diagram of a communication apparatus 500 provided by the present application.

FIG. 9 is a schematic block diagram of a communication apparatus 600 provided by the present application.

FIG. 10 is a schematic structural diagram of a terminal device 700 provided by the present application.

FIG. 11 is a schematic structural diagram of a network device 3000 provided by the present application.

Detailed ways

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

FIG. 1 is a wireless communication system 100 suitable for use in embodiments of the present application. The wireless communication system may include at least one network device and one or more terminal devices. A network device (101 as shown in FIG. 1) may wirelessly communicate with the one or more terminal devices (102 and 103 as shown in FIG. 1). The wireless communication system 100 may include, but is not limited to: global system for mobile communications (GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, future fifth generation (5th generation, 5G) system or new radio (new radio, NR) etc.

The network equipment involved in the embodiments of this application may also be referred to as base station equipment. The network device may be a Node B (NodeB) in a Universal Mobile Telecommunications System (Universal Mobile Telecommunications System, UMTS) network, an evolved Node B (evolved NodeB, eNB or eNodeB) in an LTE network, a new radio (new radio, NR) The application is not limited to a transmission reception point (transmission reception point, TRP) or a generation node B (gNB) in the network.

The terminal equipment involved in the embodiments of this application, which may also be referred to as user equipment (user equipment, UE), is a device with a communication function, and may include a handheld device with a wireless communication function, a vehicle-mounted device, a wearable device, a computing device or other processing device connected to the wireless modem, etc. Terminal devices can be called by different names in different networks. For example, mobile stations, subscriber units, stations, cellular telephones, personal digital assistants, wireless modems, wireless communication devices, handheld devices, laptop computers, cordless telephones, wireless local loop stations, and the like. For the convenience of description, in the following embodiments, the terminal device is referred to as UE for short.

As we all know, beamforming technology can effectively expand the transmission range of wireless signals and reduce signal interference, so that higher communication efficiency and higher network capacity can be achieved. However, in a communication network using beamforming technology, it is first necessary to match the transmit beam of the transmitter with the receive beam of the receiver to maximize the gain of the transmitted signal at the transmitter and receiver, otherwise high communication efficiency may not be achieved . When using beamforming technology, in order to achieve full coverage, the network side needs to scan the beam. Beam scanning presents a number of problems, one of which is the increased overhead of broadcast transmission information transmission, especially paging messages.

In LTE, the configuration information of the paging message is mainly a discontinuous reception (DRX) period and the number of POs in the DRX period. Among them, PF represents the system frame number in which the paging message appears. PO represents the subframe number in which the paging message appears on the PF. PF can be calculated according to the following formula (1):

SFNmodT=(T/N)·(UE_ID modN) (1)

In formula (1), SFN represents the system frame number, and T represents the DRX cycle or paging cycle. N=min(T, nB), where nB represents the number of POs in one DRX cycle or paging cycle. In addition, the value range of SFN is 0 to 1023. The value range of T is 32, 64, 128, 256, and the unit is a radio frame. The value of nB is 4T, 2T, T, T/2, T/4, T/8, T/16, T/32, and the unit is a radio frame. UE_ID=IMSI mod 1024. Here, the IMSI refers to an international mobile subscriber identification number (international mobile subscriber identification number).

PO can be calculated by referring to the following formula (2):

i_s=floor(UE_ID/N) _modNS (2)

In formula (2), N _S =max(1,nB/T), and the value range is 1,2,4. Therefore, the value range of i_s is 0,1,2,3.

According to the definition in the LTE standard, there is a mapping relationship between i_s and PO. The position of the PO subframe is jointly determined by the LTE standard type (FDD or TDD), parameters N _S and i_s. For example, FDD is shown in Table 1 below.

Table 1

Ns i_s=0 i_s=1 i_s=2 i_s=3 1 9 N/A N/A N/A 2 4 9 N/A N/A 4 0 4 5 9

According to the existing protocol, within a synchronization signal block (SSB) cycle, the maximum number of SSBs is 4 or 8 at low frequencies, and the maximum number of SSBs is 64 at high frequencies. Since the SSB is received by the terminal device in the idle state (ie, the Idle state), and the paging message is also received in the Idle state, the transmission of the paging message and the SSB may have the same beam. In other words, the SSB and the paging message have a quasi co-location (QCL) relationship. However, before receiving the paging message, the terminal device needs to wake up in advance to train the beam, so as to match the transmitting beam on the network side with the receiving beam on the terminal side. The SSB has a QCL relationship with the paging message, so the SSB can be used for beam training of the paging signal. Quasi-co-location means that the SSB can have a QCL relationship with at least one of the PDCCH DMRS, PDCCH, PDSCH and PDSCH DMRS of the paging message. The QCL relationship indicates that the two signals have the same parameters, and these parameters include at least one of the following: average gain, receive spatial parameters, Doppler shift, delay spread, etc.

However, using the SSB as the beam training signal of the paging message, the SSB cannot indicate whether there is a paging message in the PO. Therefore, even in the case where there may not be a paging message in the PO, the terminal device still needs to blindly detect the physical downlink control channel (physical downlink control channel, PDCCH), the terminal equipment consumes a lot of power.

Therefore, the present application proposes a method for receiving and sending a paging message, which can reduce the power consumption of a terminal device for receiving a paging message.

The present application proposes a beam training signal for a paging message. Based on the beam training signal, the power consumption of a terminal device for receiving a paging message from the network side can be reduced. Specifically, the beam training signal may be a wake up signal (wake up signal, WUS) or a tracking signal. The wake-up signal may indicate to the terminal device whether the terminal device needs to demodulate downlink control information (DCI) of the paging message when the paging message arrives. A tracking signal (TS) is a type of channel state information reference signal (CSI-RS).

In this embodiment of the present application, the correlation between the beam training signal (for example, a wake-up signal, a tracking signal) and the SSB, the time-domain position and frequency-domain position of the beam training signal, and/or what information the beam training signal can carry, etc. It can be configured by the network device and delivered to the terminal device through the configuration information. The configuration information may be carried in a physical broadcast channel (PBCH), remaining minimum system information (RMSI), system information block (SIB) 1, SIB2, SIB3, and media access control In any one of a control element (media access control-control element, MAC-CE), downlink control information (downlink control information, DCI), radio resource control (radio resource control, RRC) and system information.

In this embodiment of the present application, the association relationship may also be specified by a standard, or pre-agreed by the network device and the terminal device.

The synchronization signal block may also be referred to as a synchronization signal/physical broadcast channel (PBCH) or SSB. The synchronization signal block may include one or more of a PBCH, a primary synchronization signal (PSS), and a secondary synchronization signal (SSS).

A paging occasion (PO) may include one UE or multiple PDCCHs and/or PDSCHs corresponding to paging messages.

First, the beam training signal proposed in the present application will be described.

1. The time domain position of the beam training signal.

The time domain position of the beam training signal satisfies any one of the following conditions:

The time domain position of the beam training signal and the primary synchronization signal PSS in the SSB is the same;

The time domain position of the beam training signal and the secondary synchronization signal SSS in the SSB is the same;

The beam training signal is at the same time domain position as the physical broadcast channel PBCH in the SSB;

The beam training signal and the PBCH demodulation reference signal DMRS have the same time domain position.

The SSB mentioned here may also be called a synchronization signal, and may include at least one of PBCH, PSS, and SSS.

It is well known to those skilled in the art that the temporal position of the SSB is fixed within a field. There are five patterns in the time domain position of SSB, namely pattern A, pattern B, pattern C, pattern D and pattern E. Among them, pattern A is mainly aimed at the subcarrier spacing of 15KHz, and pattern B and pattern C are mainly aimed at the subcarrier spacing of 30KHz. Pattern D and pattern E are mainly aimed at the subcarrier spacing of 120KHz and 240KHz. The time domain position of each pattern in the field is fixed. For example, the time domain symbol position of pattern A is {2,8}+14*n, where, when the carrier frequency or operating frequency band is less than 3GHz, the value of n is 0,1; when the carrier frequency or operating frequency band is greater than 3GHz and less than At 6GHz, the value of n is 0,1,2,3. The time domain symbol position of pattern B is {4,8,16,20}+28*n, where, when the carrier frequency or operating frequency band is less than 3GHz, the value of n is 0; when the carrier frequency or operating frequency band is greater than 3GHz and less than At 6GHz, the value of n is 0,1. The time domain symbol position of pattern C is {2,8}+14*n, where, when the carrier frequency or operating frequency band is less than 3GHz, the value of n is 0, 1; when the carrier frequency or operating frequency band is greater than 3GHz and less than 6GHz When the value of n is 0,1,2,3. The time domain symbol position of pattern D is {4,8,16,20}+28*n, where, when the carrier frequency or operating frequency band is greater than 6GHz, the value of n is 0,1,2,3,5,6 ,7,8,10,11,12,13,15,16,17,18. The time domain position of pattern E is {8,12,16,20,32,36,40,44}+56*n, where the value of n is 0,1,2,3,5,6,7,8 .

SSB occupies 4 symbols in the time domain. For example, the first symbol is the primary synchronization signal (PSS), the second symbol is the physical broadcast channel (PBCH), and the third symbol is the PBCH and the secondary synchronization signal (SSS), The fourth symbol is PBCH. The PBCH symbol includes a demodulation reference signal (demodulation reference signal, DMRS) of the PBCH. The symbol distribution and time domain position of the SSB mentioned here are only an example, and other configurations are also possible. SSB may also be called SS/PBCH block or SS block, and may include one or more of the following signals: PSS, SSS and PBCH.

The time domain position of the beam training signal of the paging message proposed in the present application within a half frame may be the same as the position of the SSB. The beam training signal may have a QCL relationship with the SSB and the same time domain location and/or frequency domain location as the SSB having the QCL relationship. The beam training symbols can also be located on the same slot or on a nearby slot as the SSB of the QCL. The nearby time slot may be on the previous time slot of the SSB or on the second time slot before the SSB; the nearby time slot may be on the next time slot of the SSB or on the second time slot after the SSB. The beam training symbols can also be located on the same symbol as the SSB of the QCL, or on a previous symbol or on a subsequent symbol. When on one or two or three symbols before, it can be for example on one symbol before SSB, or on the second symbol before or on the third symbol before, or on the fourth symbol before on a symbol. When on one or two or three symbols after, for example, on one symbol after SSB, or on the second symbol after, or on the third symbol after, or on the fourth symbol after symbol, or on the fifth symbol after, or on the sixth symbol after. When the beam training symbol occupies multiple symbols, the above-mentioned symbol position may also be regarded as the starting symbol position. When the beam training symbol is in the same time slot or a nearby time slot of the SSB, the frequency of beam scanning switching can be reduced, and the beam scanning overhead can be reduced. The duration of the beam training signal in the time domain can be 1 symbol, 2 symbols, 3 symbols or 4 symbols. 1 symbol can reduce overhead, 2 symbols can measure frequency offset, 3 symbols can improve the accuracy of measuring frequency offset, and 4 symbols can measure the frequency offset more accurately than 3 symbols.

For example, when the duration of the beam training signal is 1 symbol, the beam training signal can be on the 1st symbol of the SSB, the 2nd symbol of the SSB, or the 3rd symbol of the SSB, Also on the 4th symbol of the SSB. For example, the beam training signal is on any one of the 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13 symbols of a time slot.

For another example, when the duration of the beam training signal is 2 symbols, the symbol position of the beam training signal may be the symbols occupied by the SSB in the time domain with indices {0,1}, {0,2}, {0 ,3}, {1,2}, {1,3}, {2,3} positions. where {0,1} indicates that the symbol indices are 0 and 1. Others and so on.

For another example, when the duration of the beam training signal is 3 symbols, the symbol position of the beam training signal may be {0,1,3}, {0,2, 3}, {0,1,2}, {1,2,3}.

For another example, when the duration of the beam training signal is 4 symbols, the symbol position of the beam training signal may be an index of {0, 1, 2, 3} in the symbols occupied by the SSB in the time domain.

As described above, {0, 3} indicates that the symbol positions of the beam training signals can be on the 1st symbol and the 4th symbol of the symbols occupied by the SSB in the time domain. Since the time offset between the 1st sum symbol and the 4th symbol is relatively large, more Doppler shift estimates can be obtained. The difference between {0,1}, {1,2}, {2,3} is 1 symbol, which can get better channel estimation performance. {0,2}, {1,3} can achieve a compromise between channel estimation performance and Doppler frequency shift performance.

In this embodiment of the present application, in order to obtain better performance estimation, the preceding or following symbols of the SSB in the time domain may also be used. For example, the beam training signal may be on the 1st symbol preceding the 1st symbol of the SSB. Alternatively, the beam training signal may be on the 2nd symbol before the 1st symbol of the SSB. Alternatively, the beam training signal may be on the 3rd symbol before the 1st symbol of the SSB. Alternatively, the beam training signal may be on the 4th symbol before the 1st symbol of the SSB. For another example, the beam training signal is on the 1st symbol after the last 1 symbol of the SSB. Alternatively, the beam training signal may be on the 2nd symbol after the last 1st symbol of the SSB. Alternatively, the beam training signal is on the 3rd symbol after the last 1 symbol of the SSB. Alternatively, the beam training signal is on the 4th symbol after the last 1 symbol of the SSB.

Optionally, the position of the beam training signal in the time domain can also be individually set in a time slot.

E.g. When the duration of the beam training signal is 1 symbol, the beam training signal can be at 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 in one slot (when one slot includes 14 symbols) or any one of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 (when one slot includes 12 symbols) on the symbol.

For another example, when the duration of the beam training signal is 2 symbols, the indices of the positions of these 2 symbols in the time slot may be {0,1}, {0,2}, {0,3}, {0 ,4}, {0,5}, {0,6}, {0,7}, {0,8}, {0,9}, {0,10}, {0,11}, {0,12 }, {0,13}, {1,2}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7}, {1,8}, {1,9}, {1,10}, {1,11}, {1,12}, {1,13}, {2,3}, {2,4}, {2,5}, {2 ,6}, {2,7}, {2,8}, {2,9}, {2,10}, {2,11}, {2,12}, {2,13}, {3,4 }, {3,5}, {3,6}, {3,7}, {3,8}, {3,9}, {3,10}, {3,11}, {3,12}, {3,13}, {4,13}, {4,12}, {4,11}, {4,10}, {4,9}, {4,8}, {4,7}, {4 ,6}, {4,5}, {5,6}, {5,7}, {5,8}, {5,9}, {5,10}, {5,11}, {5,12 }, {5,13}, {6,7}, {6,8}, {6,9}, {6,10}, {6,11}, {6,12}, {6,13}, {7,8}, {7,9}, {7,10}, {7,11}, {7,12}, {7,13}, {8,9}, {8,10}, {8 ,11}, {8,12}, {8,13}, {9,10}, {9,11}, {9,12}, {9,13}, {10,11}, {10,12 }, {10,13}, {11,12}, {11,13}, {12,13}.

For another example, when the duration of the beam training signal is 3 symbols, the indices of the positions of these 3 symbols in the time slot may be {0, 1, 2}, {1, 2, 3}, {2, 3 ,4}, {4,5,3}, {6,4,5}, {5,6,7}, {6,7,8}, {7,8,9}, {8,9,10 }, {10,11,12}, {9,10,11}, {11,12,13}, {0,2,4}, {1,3,5}, {2,4,6}, {3,5,7}, {4,6,8}, {5,7,9}, {6,8,10}, {8,10,12}, {7,9,11},{0 ,3,6},{1,4,7},{2,5,6},{3,6,9},{4,7,10},{5,8,11},{6,9 ,12}, {7,10,13}, {0,4,8}, {1,5,9}, {2,6,10}, {3,7,11}, {4,8,12 }, {5,9,13}, {0,5,10}, {1,6,11}, {0,6,12}, {0,7,13}.

For another example, when the duration of the beam training signal is 4 symbols, the positions of the 4 symbols may be exactly the same as the positions of the 4 symbols of the SSB. Alternatively, the positions of these 4 symbols can also be configured individually, for example, the indices of these 4 symbols in the time slot can be {0, 1, 2, 3}, {1, 2, 3, 4}, {2 ,3,4,5},{4,5,3,6},{6,4,5,7},{5,6,7,8},{6,7,8,9},{7 ,8,9,10},{8,9,10,11},{10,11,12,13},{9,10,11,12},{0,2,4,6},{1 ,3,5,7},{2,4,6,8},{3,5,7,9},{4,6,8,10},{5,7,9,11},{6 , 8, 10, 12}, {7, 9, 11, 13}.

The time domain positions of the beam training signals listed above may be specified by a protocol, or may be fixed by a pre-agreed agreement between the network side and the terminal device, or may be configured by the network device. If it is configured by a network device, the configuration information can be carried in PBCH, remaining minimum system information (RMSI), system information block (SIB) 1, SIB2, SIB3, radio resource control (radioresource control, RRC), media access control (media access control-control element, MAC-CE), any one of downlink control information (downlink control information, DCI).

In addition, the beam training signal described above may refer to a beam training signal from QCL to one SSB, or may be a beam training signal from QCL to multiple SSBs.

When the beam training signal QCL reaches multiple SSBs, only the time domain position of the first beam training signal may be indicated, and the time domain positions of other beam training signals may be calculated according to the order. The first symbol is the beam training signal, which refers to the beam training signal from QCL to the first SSB, and the ith beam training signal refers to the beam training signal from QCL to the ith SSB. For example, denoting the starting symbol position or the starting time slot position as O, the starting symbol position of the ith beam training signal corresponding to the ith SSB can be calculated according to formula (3):

(O+f(i×M))mod N2 (3)

Among them, the physical meaning of each parameter in formula (3) is as follows:

M represents the duration of the beam training signal, which is a fixed or configured constant, and the unit of M can be a symbol or a time slot. N2 may represent the number of time slots in one frame, may also represent the number of symbols in one time slot, or may also be a fixed or configured or derived constant bit. For example, the value of N2 is 14 or 12. f(i×M) is i×M, or f(i×M) is floor(i×M) or ceil(i×M). The value of O can be configured or fixed.

It should be noted that the paging message and the SSB described in this application have a QCL relationship, which means that the paging message and the SSB use the same delay spread, the same Doppler spread, the same average gain, and the same average time. One or more of the delay, the same receive spatial parameters to transmit or receive the signal, or the same beam to transmit or receive the signal.

As described above, the time domain position of the beam training signal may be the same as the time domain position of the PSS in the intra-field SSB, may be the same as the time domain position of the SSS in the intra-field SSB, or may be the same as the time domain position of the intra-field SSB The time domain position of the PBCH in the SSB may be the same as the time domain position of the DMRS of the PBCH in the SSB in the half frame.

When the time domain position of the beam training signal collides with the time domain position of the SSB, the beam training signal may be frequency-division multiplexed with the SSB, or the time domain position of the beam training signal may introduce a time offset. The time offset may be based on symbols, may also be based on time slots, may also be based on half frames, and may also be based on one frame.

For example, when the time offset is based on symbols, the offset values can be 1 symbol, 2 symbols, 3 symbols, 4 symbols, 5 symbols, 6 symbols, 7 symbols, 8 symbols, 9 symbols, 10 symbols, 11 symbols or 12 symbols. In addition, the value of the time offset can be positive or negative, and can also be 0. As an implementation manner, when the time offset is based on symbols, the offset value may be determined according to the pattern of the SSB. For example, when the SSB is patternA, the offset value of the beam training signal on the 1st symbol of the SSB can be -1, -2, 4 or 5.

For another example, when the time offset is based on time slots, the offset values may be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 ,17,18,19,20, 21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40 Any one or more values in the slot. As an implementation manner, the size of the offset value may be determined according to the subcarrier spacing. For example, when the subcarriers are separated by 15KHz, the size of the offset value may be any one or multiple values of 1, 2, 3, 4, 5, 6, 7, 8, and 9. When the subcarrier spacing is 30KHz, the offset value can be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, Any one or more of 18,19. When the subcarrier spacing can be 60KHz, the offset value can be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 ,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39 or multiple values.

For another example, when the time offset is based on subframes, the offset value may be 0 subframes, 1 subframe, 2 subframes, or 3 subframes.

For another example, when the time offset is frame-based, the offset value may be one of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15 frames Any single value or multiple values. The offset value can be positive or negative, or 0. In addition, the offset value can also be determined according to the period of the SSB. For example, if the period of the SSB takes a value of 160ms (ie, the maximum period of the SSB), the offset value may take a value of 1˜15. If the period of the SSB is 20ms, the offset value can take a value of 0 or 1. The time domain position of the beam training signal can also be configured, and can be configured through any one of PBCH, system message, RRC signaling, DCI or MAC-CE, wherein the system message can be SIB1, or can be SIB2 or SIB3. The size of the offset value can be configured, or the position of the starting symbol of the beam training signal can be directly configured, which can be configured based on time slots or based on symbols.

It should be noted that the offset unit may be any one of the symbols, time slots, subframes or frames described above, and may also be a combination of these. When the offset unit is a combination of these types, it may be a combination of all of these types, or a partial combination. For example, the offset value may be 3 symbols of 5 time slots of a half frame of a frame.

The time domain position of the beam training signal has been described above, and the frequency domain position of the beam training signal is described below.

2. The frequency domain position of the beam training signal.

In this application, the frequency domain position of the beam training signal satisfies any one of the following conditions:

The beam training signal is at the same frequency domain location as the PSS in the SSB;

The beam training signal is at the same frequency domain position as the SSS in the SSB;

The beam training signal is at the same frequency domain position as the PBCH in the SSB;

The beam training signal is at the same frequency domain location as the RMSI;

The beam training signal is at the same frequency domain position as the PDCCH or control resource set (CORESET) of SIB1;

The beam training signal is in the same frequency domain position as the PDCCH or CORESET of the paging message;

The beam training signal is the same as the PDSCH frequency domain position of RMSI or SIB1;

The beam training signal is the same as the frequency domain position of SSB plus SIB1's PDCCH or CORESET;

The beam training signal has the same frequency domain position as the sum of the SSB, the PDCCH or control resource set of SIB1, and the frequency domain gap (gap) between the SSB and the PDCCH or CORESET of SIB1.

The time domain and frequency domain positions of the beam training signal are described above.

It should be noted that when the time-frequency position of the beam training signal collides with the SSB, the network side may choose not to send the beam training signal, but only the SSB, and the terminal device may consider that the beam training signal does not exist. Alternatively, the network side can also choose not to send the SSB, but only send the beam training signal, and the terminal device considers that the SSB does not exist.

Figures 2-4 show several examples of beam training signals and SSB distributions in the time and frequency domains.

Referring to FIG. 2, FIG. 2 is an example in which the beam training signal does not conflict with the time-frequency position of the SSB. As shown in Figure 2, the beam training signal and SSS are each distributed in different time slots.

Referring to FIG. 3 , FIG. 3 is an example of time offset caused by conflicting time-frequency positions of the beam training signal and the SSB. As shown in FIG. 3, mode 1 shows one example of time offset, and mode 2 shows another example of time offset.

Referring to FIG. 4 , FIG. 4 is an example in which the beam training signal and the SSB adopt frequency division multiplexing to avoid time-frequency position collision.

It should be understood that the manner of avoiding the conflict between the beam training signal and the time-frequency position of the SSB shown in FIG. 2 to FIG. 4 is only an example, and other manners may also be used, which are not limited in the embodiments of the present application.

The advantage of the beam training signal and the position of the SSB is that in a frame, the position where the SSB is sent is the position where the downlink signal is sent, and the network side does not need to consider whether these positions conflict with the uplink information.

The information carried by the beam training signal is introduced below.

The frequency domain position of the beam training signal can also be configured, and can be configured through any one of system messages, RRC signaling, DCI or MAC-CE, where the system message can be SIB1, or SIB2 or SIB3. The time domain position of the beam training signal may also be configured, and may be configured through any of the above signaling. The method for configuring the frequency domain position of the beam training signal may be configured with the frequency domain position offset of the SSB, or may be configured according to the offset of the SIB1 or the RMSI control resource position. The value of the offset value may be offset in units of RBs (resource blocks). The configurable values are some or all of 0, 1, 2, 4, 5, 6, 7, 8, 12, 14, 16, 18, 20, 28, 38, 56. The configurable values can be It can be positive or negative. It can also be configured to the same value as in the RMSI configuration table.

3. Information carried by the beam training signal.

way 1

The beam training signal carries indication information, and the indication information is used to indicate whether there is a paging message or a paging list in one or more POs, or the indication information is used to indicate whether there is a physical downlink control channel PDCCH or PDCCH of one or more POs. Physical downlink shared channel PDSCH.

In the embodiment of the present application, the beam training signal of the paging message carries indication information, and the indication information is used to indicate whether there is a paging message or a paging list in a paging access opportunity PO, or whether the PO exists , or indicating whether the PDCCH of the PO exists, or indicating whether the PDSCH of the PO exists. Alternatively, the indication information can also be used to indicate whether there is a paging message or a paging list in several POs.

In the case where the indication information is used to indicate whether there is a paging message or a paging list among multiple POs, the multiple POs may belong to one PO group. The PO group may be obtained by dividing multiple POs on the network side.

The paging list records the identification information of one or more terminal devices paging by the network device, for example, it may be one or a group of UE IDs.

In the case where the indication information carried in the beam training signal only indicates whether there is a paging message or a paging list in a PO, the terminal device only needs to detect the beam training signal corresponding to its PO, and then according to the beam corresponding to its PO The above-mentioned indication information carried in the training signal determines whether there is a paging message in the own PO. Only when the indication information carried in the beam training signal indicates that a paging message or a paging list exists in the PO of the terminal device, the terminal device needs to receive the paging message in its PO. If the indication information indicates that there is no paging message in the PO of the terminal device, the terminal device can go to sleep in its PO to save power consumption.

Here, the process for a terminal device to determine its own PO may refer to the prior art, which will not be repeated here.

When the indication information carried in the beam training signal is used to indicate whether there is a paging message or a paging list in several POs, the network side can group multiple POs to obtain multiple PO groups. The terminal device can detect the beam training signal of the PO group to which its own PO belongs. Then, according to the beam training signal, determine whether there is a paging message or a paging list in the PO, and then decide to receive a paging message or go to sleep.

Specifically, on the network side, when grouping multiple POs, the network device may divide one PO and its preceding POs into one PO group. For example, suppose there are 5 POs, which are PO0, PO1, PO2, PO3, and PO4. The network side can divide PO4, PO3, PO2, and PO1 into a PO group, divide PO3, PO2, PO1, and PO0 into a PO group, and divide PO2, PO1, PO0, and PON-1 into a PO group, where PON -1 means the last PO in the last DRX cycle. Several can be K, the value of K can be configured, and the configurable values are some or all of the values 0, 1, 2, 3, 4, 5, 6, 7, and 8.

In this application, the beam training signal corresponding to each PO belonging to a PO group carries the above-mentioned indication information, and the indication information is specifically used to indicate whether there is a paging message or a paging list in the last PO in the PO group. For example, taking the above-mentioned PO4, PO3, PO2 and PO1 as an example of a PO group, the beam training signals corresponding to PO1, PO2, PO3 and PO4 all carry indication information. For the convenience of description, PO1, PO2, PO3 and PO4 The indication information carried by the corresponding beam training signal is denoted as indication information 1, indication information 2, indication information 3 and indication information 4, respectively. Wherein, indication information 1, indication information 2, indication information 3 and indication information 4 at least indicate whether there is a paging message or paging list in PO4, or indicate whether the PO exists, or indicate whether the PDCCH of the PO exists or indicate the existence of the PO. Whether the PDSCH of the PO exists.

It can be seen from the above method of grouping POs that PO groups can overlap each other. In other words, a PO may be divided into multiple PO groups. For example, if the number of POs in a PO group is n, then 1 PO can be allocated to n PO groups. Alternatively, 1 PO can be assigned to N/2, N/4, N/8, N/16, N/32, N/3, N/6 or N/10 PO groups. Alternatively, 1 PO can only be assigned to one PO group. Alternatively, 1 PO can be divided into 1, 2, 3, 4, 5, 6, 7 or 8 PO groups. The value of N can be any one or more of 1, 2, 4, 8, 16, 32, 64, 128, 256, and 512. The value of N can also be any one or more of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16. The maximum value of N can be 8, 16, 32 or 64. When the value of N is a multiple of 2 (for example, the value of N is 1, 2, 4, 8), it is convenient to use binary data bit representation.

A beam training signal may carry indication information of N3 POs, and the value of N3 may be any one or more of 1, 2, 3, 4, 5, 6, 7, and 8.

For example, when the value of N3 is 4, one beam training signal may carry indication information for indicating whether there is a paging message or a paging list in the 4 POs. Or, the beam training signal carries indication information of whether there is a paging message or a paging list in some POs or all POs in the four POs. Or, carry the indication information of whether the PDCCH of some POs or all the POs in the 4 POs exists, or carry the indication information of whether the PDSCH of some POs or all the POs of the 4 POs exists. The WUS of each PO can correspond to a set of dedicated PO groups.

Specifically, the sequence initialization formula of the beam training signal or the sequence generation formula can be used to carry the indication information of the four POs. For example, four parameters in the sequence initialization formula or the sequence generation formula may be used to indicate the indication information of the four POs.

For example, when the beam training signal is a ZC (Zadoff-chu) sequence, the formula for generating the ZC sequence includes indication information for indicating whether a paging message or a paging list exists in the four POs. For another example, when the beam training signal is a Gold sequence or an m sequence, the initialization formula of the Gold sequence or the m sequence may indicate whether a paging message or a paging list exists for the 4 POs. Among them, the Gold sequence is a kind of pseudo-pseudo-random sequence, and the m sequence is a kind of pseudo-noise sequence (Pseudo-noise Sequence, PN) sequence, which may refer to the prior art, and will not be introduced in detail here. For example, the indication information of whether there is a paging message or a paging list in the 4 POs may be 4 bits, and each bit corresponds to one PO. For a bit, the value of this bit can be 0 or 1. 0 means that there is no paging message and no UE ID in the PO corresponding to this bit (it can be one or a group, 1 means that the PO corresponding to this bit does not exist) There is a paging message and/or there is one or a group of UE IDs. m _k or m _(K-1) can carry the last PO in the PO group or whether there is a paging message, a paging list, the The indication information of the PDCCH of PO or the PDSCH of this PO.As a possible implementation mode, whether there is indication information in the PO can be carried by the sequence initialization generation formula.For example, the sequence initialization generation formula g=func(PO1, PO2, PO3, ..., POk, ..., POK). Among them, PO1, PO2, PO3, ..., POK belong to a PO group. The relationship between PO1, PO2, ..., POK or the example of the Kth PO in the PO group carrying the indication information Can be m ₁ +m ₂ ×2+m ₄ ×4+…+m _k ×2 ^k-1 +…m _K ×2 ^K-1 or m ₀ +m ₁ ×2+m ₂ ×4+…+m _(K-1) ×2 ^k-1 +…+m _(K-1) ×2 ^K-1 or m _(K-1) +m _(K-2) ×2+m _(K-3)× 4+ …+m _(k-1) ×2 ^k-1 +…+m ₀ ×2 ^K-1 or m _K +m _(K-1) ×2+m _(K-2) ×4+…+m _k × 2 ^k-1 +…+m ₁ ×2 ^K-1 or m _K ×n ₁ +m _(K-1) ×n ₂ +m _(K-2) ×n ₃ +…+m _k ×n _k +… +m ₁ ×n _{K .} func represents a function that carries whether there is a paging message or a paging list in the PO or the indication information of the PDCCH of the PO or the PDSCH of the PO. n ₁ , n ₂ , n ₃ , . . . , n _K is a positive integer, for example, can be a power of 2 integer. The function example of the above formula is just a sub-function of the function. Wherein, m _k represents the corresponding indication information of the kth PO. The indication information is used to indicate Whether there is a paging message or a paging list in the kth PO, or whether there is a paging message or paging list in some POs or all POs in the PO group where the kth PO is located, or indicate whether the kth PO exists in a paging message or a paging list Whether the PDCCH of the PO exists or indicates whether the PDSCH of the kth PO exists.

The above-mentioned PO4, PO3, PO2 and PO1 can also be taken as an example of a PO group, and 0000 means that there is no paging message and no paging list in PO1, PO2, PO3 and PO4. 0001 indicates that there is a paging message and/or a paging list in PO0, no paging message and no paging list exist in PO1, PO2 and PO3. 1101 indicates that there are paging messages and/or paging lists in PO0, PO2, PO3, but no paging messages and no paging lists exist in PO1.

In the case where the indication information carried in the beam training signal is used to indicate whether a paging message or a paging list exists for multiple POs in a PO group, according to the above, one PO may belong to multiple PO groups. Therefore, the terminal The device can detect the beam training signal corresponding to any one or several POs in the multiple PO groups to which its PO belongs, and then receive paging on the POs with paging messages according to the indication information carried by the detected beam training signals. messages, go to sleep in POs where no paging messages exist.

Optionally, the terminal device may select a beam training signal corresponding to the PO group in which its own PO is located at the last one from the multiple PO groups to which its own PO belongs.

For example, the PO of the terminal device is PO4, and PO4 belongs to two PO groups, namely {PO2, PO3, PO4, PO5} and {PO1, PO2, PO3, PO4}. It can be seen that PO4 is the last one in {PO1, PO2, PO3, PO4}, so the terminal device can choose to detect the beam training signals corresponding to the PO group {PO1, PO2, PO3, PO4}. As described above, the beam training signal corresponding to each PO in the PO group {PO1, PO2, PO3, PO4} will indicate whether the last PO in the PO group (ie, PO4) has a paging message or paging list. Instructions. In this way, the terminal device only needs to detect the beam training signal corresponding to any one or several POs in {PO1, PO2, PO3, PO4}, and can know whether there is a paging message or a paging list in PO4.

When the indication information carried in the beam training signal corresponding to a PO is used to indicate whether a paging message or a paging list exists in the N POs, the indication information used to indicate whether a paging message or a paging list exists in the PO can be arranged It is the first in all indication information, it can also be the last one, or the middle one. For example, taking {PO4, PO3, PO2, PO1} as an example, the indication information carried by the beam-seeking signal corresponding to PO2 may indicate whether there is a paging message or a paging list in PO4, PO3, PO2 and PO1, wherein PO2 indicates whether there is a paging message or a paging list. The information of whether there is a paging message or a paging list in the message can be located in the first or last or middle bit of the indication information.

When a terminal device has multiple receiving beams, the beam training process may not only need to scan one circle, but may need to scan multiple circles to train a good beam, and training multiple circles may need to borrow the beam training signals of other POs. Therefore, in the embodiment of the present application, the POs are grouped so that the UE can go to sleep in advance. For example, it is possible to go to sleep on the first lap of a training session.

way 2

The beam training signal carries indication information, and the indication information is used to indicate whether there is a paging message or a paging list in the PO for the same UE or a group of UEs in multiple DRX cycles.

For example, the indication information is used to indicate whether there is a paging message or a paging list in the PO for the same UE or the same group of UEs within N4 DRX cycles. Wherein, N4 is an integer. The value of N4 can be any one or more of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16.

Further, the value of N4 may be related to the DRX cycle on the network side or the terminal side. For example, the DRX cycle on the network side or the terminal side is 640ms, and the maximum value of N4 can be 16. In this way, the UE can sleep longer, thereby saving more power consumption. For example, the UE detects a beam training signal corresponding to a PO in DRX1, and the indication information carried in the beam training signal is used to indicate that there is no paging message on the network side in DRX1, DRX2, and DRX3, or the network side does not target the UE. If there is no paging message on the network side for a UE group in which the UE belongs, the UE will not wake up to detect the PDCCH in DRX1, DRX2 and DRX3, but can always sleep.

Referring to FIG. 5, FIG. 5 is a schematic diagram of a terminal device scanning a beam. As shown in FIG. 5 , the network side has four transmitting beams, and the network side will deliver the paging training signal in the beams in each direction in each PO. If the UE (eg UE1 or UE2 shown in FIG. 5 ) also has receive beams in 4 directions, the terminal device will use each receive beam to scan the transmit beam on the network side. In theory, the UE needs to scan 4 times to scan all the transmit beams once. After the scanning is completed, the UE may select the combination of the transmit beam and the receive beam with the maximum gain as the matched beam, and use the matched beam to receive the subsequent paging messages. In the process of beam matching, since the network side sends the beam training signal of the paging message through the transmission beam in each direction, and as mentioned above, the beam training signal carries indication information, which is The presence or absence of a paging message or paging list in one or more POs may be indicated. According to the indication information carried by the beam training signal received in the beam matching process, the UE can learn which POs have paging messages or paging lists, and which POs do not have paging messages or paging lists. In this way, the UE only receives the paging message in the PO where the paging message exists indicated by the indication information, and goes to sleep in the PO where the paging message does not exist.

It can be seen that by carrying the indication information in the beam training signal, the network side can indicate to the UE that there are POs with paging messages and POs without paging messages. In this way, if there are no paging messages in some POs, the UE no longer needs to communicate with the existing POs. By blindly detecting the PDCCH as in the prior art, the power consumption of the UE can be reduced.

In this embodiment of the present application, the beam training signal of the paging message may carry at least one of the following information in addition to the indication information described in the foregoing mode 1 or mode 2:

Time index information of SSB, frame number information or field indication information, and blind detection information of PDCCH.

These information are described below.

The time index information of the SSB is used to indicate the time index of the SSB. The beam training signal of the paging message may carry the time index of the SSB that may be sent, or may carry the time index of the SSB that is actually sent.

If the beam training signal carries the actually sent SSB time index, the amount of information carried by the beam training signal can be reduced, thereby increasing the reliability of sequence detection. In order to reduce the power consumption of UE detection, after the UE wakes up, it can only detect the beam training signal for synchronization and beam training, and does not need to detect the SSB. Therefore, the beam training signal needs to carry synchronization information and beam information, that is, the beam training signal needs to carry the information of the time index of the SSB. For example, when the beam training signal is a ZC sequence, the generation formula of the ZC sequence includes the information of the time index of the SSB. For another example, when the beam training signal is a Gold sequence or an m sequence, the initialization of the Gold sequence or the m sequence uses the time index information of the SSB. The beam training signal may carry the time index information of part of the SSBs with the QCL relationship, or may also carry the time index information of all the SSBs with the QCL relationship. In addition, different segments of the sequence can also be used to indicate the time index information of the SSB. The WUS can carry 3 bits of information of the 3 most significant bits (most significant bits, MSB) of the SSB index. The terminal device can obtain the 3 bits of information without demodulating the PBCH, thereby reducing the power consumption of the terminal device. The WUS may also carry all the index information of the SSB, that is, carry the information of the least significant bits (least significant bits, LSB) of the SSB index of 6 bits or 3 bits, or carry the information of the LSB of the SSB of 2 bits. In this way, the information of the SSB carried by the PBCH DMRS in the SSB can be mutually checked, so as to obtain better performance and reduce the false detection probability of the terminal device. The generation sequence of WUS can be the same as the generation formula of PBCH. The generation formula of the scrambling sequence may be generated according to the index of the SSB. For example, c _inicial = 2 ^k ×(i ^SSB +1)×f ₁ (cell ID)+2 ^k ×(i ^SSB +1)+f ₂ (cell ID), where f ₁ (cell ID) and f ₂ ( cell ID) is a function of the cell ID, i ^SSB represents the index of the SSB, which may be the 3-bit information of the MSB of the SSB index, or may be all the SSB indices.

Further, the beam training signal may also carry part of the frame number information or all of the frame number information.

When the beam training signal carries part of the frame number information, it may only carry the frame number information in the SSB period. For example, if the SSB period is 20ms, the beam training signal may carry 1-bit indication information, and the 1-bit indication information is used to indicate whether the frame where the beam training signal is located is the first frame or the second frame within the 20ms period. Alternatively, different beam training signals may carry different indication information, and each indication information corresponds to a different PO. Wherein, each indication information is specifically used to indicate whether there is a paging message or a paging list in the corresponding PO. This PO can be a PO within a DRX cycle, or a PO for a period of time within a DRX cycle, which can be one of 10ms, 20ms, 30ms, 40ms, 60ms, 50ms, 70ms, 80ms, 90ms or 160ms Any value used to distinguish different POs, or to distinguish different times, or to synchronize different frames. In addition, the DRX cycle mentioned here may be the DRX cycle on the network side or the DRX cycle on the terminal side.

Further, on the basis of carrying frame number information, the beam training signal may also carry field indication information. For example, the beam training signal may carry 1-bit field indication information, and the 1-bit field indication information is used to indicate the beam Whether the training signal is in the first half frame or the second half frame.

In addition, the beam training information may also carry blind detection information of the PDCCH. The blind detection information of the PDCCH may include size information of a payload (payload) of downlink control information (DCI), aggregation level information of the PDCCH, candidate location information, and the like.

For example, the beam training signal may carry 2-bit information or 3-bit information to indicate the candidate positions of the PDCCH of the paging message. In addition, the beam training signal may also carry 2-bit information or 3-bit information to indicate the aggregation level of the PDCCH of the paging message. In this way, the blind detection overhead of the terminal equipment for the PDCCH of the paging message can be further reduced.

The beam training signal of the paging message proposed by the present application is described in detail above. The beam training signal of the paging message may be a wake-up signal or a tracking signal. In other words, in the technical solution proposed in the present application, the wake-up signal or the tracking signal can also be used as a beam training signal of the paging message in addition to the functions in the prior art.

The following describes the process of sending and receiving a paging message on the basis of the beam training signal of the above paging message with reference to FIG. 6 .

Referring to FIG. 6, FIG. 6 is a flowchart of sending and receiving a paging message proposed by the present application.

210. The network device generates a beam training signal of the paging message according to the association relationship between the SSB and the beam training signal of the paging message.

The association relationship between the SSB and the beam training signal (eg, wake-up signal, tracking signal) of the paging message may be specified by the protocol, or fixed, or pre-configured by the network device. The network device and the terminal device can each save the association relationship. Specifically, the association relationship between the SSB and the beam training signal may include the positional relationship between the beam training signal and the SSB in the time domain and/or the positional relationship in the frequency domain, and the like.

Optionally, the wake-up signal may also be associated with the CSI-RS, and the association with the CSI-RS configured by the RRC signaling may also be associated with the CSI-RS reported by the UE. The association relationship may be a quasi-co-location relationship, may be QCL-A, may be QCL-B, may be QCL-D, or may be QCL-C. QCL-A means that the parameters such as Doppler shift, Doppler spread, average delay and delay spread are the same. QCL-B means that the parameters such as Doppler shift and Doppler spread are the same. QCL-C means that the parameters such as Doppler frequency shift and average delay are the same. QCL-D indicates that the parameters such as the receiving airspace parameters are the same.

The QCL relationship or association between the wake-up signal and CSI-RS or SSB can be configured through RRC signaling, or through MAC-CE, or through DCI, or the above Multiple signaling is configured together. A wake-up signal or a wake-up signal at a certain resource location can be directly configured to associate with a channel state information reference signal (CSI-RS) resource index through any one or more of the above signaling, and a transmission configuration can be used. indicator (transmissionconfiguration indicator, TCI) to indicate. Or configure the SSB index associated with it. The wake-up signal may have the same QCL relationship with the DCI or the control resource set or the search space or the PDCCH or its DMRS in the search space. The wake-up signal may have the same demodulation reference signals (DMRS) as the associated DCI or the associated control resource set or the associated search space or the PDCCH in the associated search space or the associated PDCCH QCL relationship. That is, when configuring the wake-up signal, the network device needs to specify the CSI-RS resource of its QCL or the SSB index of its QCL. Moreover, when configuring the association relationship, the network can also configure the QCL type of the reference signal associated with it. It is also possible to protocol specify the QCL type associated with it. The QCL type can be any one between QCL-A, QCL-B, QCL-C and QCL-D.

The beam training signal carries indication information, and the indication information is used to indicate whether there is a paging message or a paging list in one or more POs, or the indication information is used to indicate whether there is a physical downlink control channel PDCCH of one or more POs Or physical downlink shared channel PDSCH.

It should be understood that the identification information of one or more terminal devices to be paged by the network device is recorded in the paging list.

In addition, the beam training signal may also carry other information, for example, time index information of the SSB, frame number information or field indication information, and blind detection information of the PDCCH of the paging message. For the description of these pieces of information, reference may be made to the description of the beam training signal above, which will not be repeated here.

Specifically, in the case where the beam training signal of the paging message is a wake-up signal, in step 210, the network device generates a wake-up signal according to the association relationship between the SSB and the wake-up signal. In the case where the beam training signal of the paging message is the tracking signal, in step 210, the network device generates the tracking signal according to the association relationship between the SSB and the tracking signal.

220. The network device sends a beam training signal to the terminal device. The terminal device receives the beam training signal of the paging message from the network device according to the association relationship between the SSB and the beam training signal of the paging message.

In step 220, the network device sends a beam training signal of the paging message to the terminal device, where the beam training signal carries the indication information described in step 210. The association relationship between the SSB and the beam training signal may include a configuration relationship between the time domain position and/or the frequency domain position of the beam training signal and the time domain position and/or the frequency domain position of the SSB. The beam training signal may be a wake-up signal or a tracking signal.

When the beam training signal can also be used as the measurement signal, it can be used as the measurement signal of the current cell or the measurement signal of the neighboring cell. It can be used as a radio resource management (radio resource management, RRM) measurement, and can also be used as a radio link control (radio link control, RLC) measurement. When the beam training signal is SSB, the network device may also configure the neighbor physical cell identifier in the system message to reduce the power consumption measured by the terminal device. Alternatively, the network device may also configure the neighbor physical cell identifier according to the SSB index or the CSI-RS index in the system message. The identifier of the neighboring physical cell can be bound with the SSB, or can be bound with the CSI_RS. When configuring the identity of the neighboring physical cell in the system message, one or more associated SSB indexes are indicated. At the same time, it can also indicate the frequency range of the associated SSB index, which can be based on an absolute radio frequency channel number (ARFCN) or a globol synchronization channel raster number (GSCN).

230. The terminal device determines, according to the indication information, the POs that do not need to receive the paging message.

Optionally, the terminal device may also determine the PO that needs to receive the paging message.

Wherein, in this embodiment of the present application, POs that do not need to receive paging messages include POs that do not have paging messages and POs that do not have paging lists indicated by the indication information. Therefore, the terminal device only needs to receive paging messages on POs that have paging messages or paging lists, and goes to sleep in POs that do not need to receive paging messages and paging lists, thereby saving the function of receiving paging messages. consumption.

Optionally, steps 240 and 250 may also be included.

240. The network device sends a paging message to the terminal device.

250. The terminal device receives the paging message in the POs that have the paging message or the paging list, and goes to sleep in the POs that do not need to receive the paging message.

In the technical solution of the present application, the network side carries indication information in the beam training signal of the paging message sent to the terminal device, and the indication information is used to indicate whether there is paging in one or more paging access occasions PO message or paging list, or the indication information is used to indicate whether there are PDCCH or PDSCH of one or more POs, so that the terminal device can know which POs have paging messages or paging messages during the beam training phase of paging messages. paging list, and/or which POs do not have paging messages or paging lists. Therefore, the terminal device only receives the paging message in the PO whose indication information indicates that the paging message or paging list exists, and goes to sleep in the PO whose indication information indicates that there is no paging message or paging list, which can reduce the reception rate of the terminal device. Power consumption of paging messages.

The present application also proposes another method for sending and receiving paging messages, which can also reduce the power consumption of a terminal device for receiving paging messages.

The network side delivers adjacent beam information of each beam to the UE, and the adjacent beam information is used to indicate the adjacent beam of the beam used by the terminal device to receive the paging message last time. In this way, after the UE wakes up from the DRX cycle, according to the ID of the beam used when receiving the paging message last time, it only needs to scan and measure the adjacent beams of the last beam ID, which can reduce the number of beams that the terminal device needs to scan, and thus can also Reduce power consumption of end devices.

The network side can deliver adjacent beam information to the terminal device in various ways. For example, the network side can deliver the adjacent beam information to the terminal device by using the precise delivery or fuzzy delivery method described below. The following description will be made with reference to FIG. 7 . Figure 7 is a schematic diagram of adjacent beams.

(1) Precise delivery

The network side directly sends the index of the adjacent beams of each beam to the terminal device.

Referring to FIG. 7 , there are 16 beams in total in FIG. 7 , and the indices of the 16 beams are recorded as index 0 to index 15 in sequence. For example, if the beam where the UE is currently located is beam 0, the adjacent beams of beam 0 are speed 1, beam 6 and beam 7. For another example, if the beam where the UE is located is beam 1, the adjacent beams of beam 1 are beam 0, beam 2, beam 5, beam 6 and beam 7. And so on, not to list them one by one.

It can be seen that if the index of the adjacent beams of each beam is directly sent to the terminal device in an accurate way, the resource overhead is relatively large.

(2) Fuzzy delivery

The network side sends the adjacent beams of each beam by indicating the transmitted SSB in the RMSI. Specifically, the network side may use the actually transmitted SSB for transmission, or may use the possible transmitted SSB for transmission. For example, the network side can group beams to obtain multiple beam groups. The network side jointly indicates the adjacent beams of each beam by inter-beam group and intra-beam group.

Continuing to take FIG. 7 as an example, beam 0 to beam 3 are beam group 1 , and beam 4 to beam 7 are beam group 2 . If the beam where the UE is currently located is beam 0, there are adjacent beams in beam group 1 and beam group 2 where beam 0 is located, so the difference between beam groups can be expressed as 0100. Further, in the group of beam group 2, the beams adjacent to beam 0 are beam 6 and beam 7. Therefore, the group of beam group 2 can be represented as 0011. In order to save bit overhead, if the inter-group of beam group and the intra-group joint indication of the beam group, it can be expressed as 0111.

It can be found that, compared with the above-mentioned precise delivery method, the fuzzy delivery method can save resource overhead.

The method for sending and receiving a paging message proposed by the present application has been described in detail above. The communication apparatus, terminal equipment and network equipment proposed in the present application will be described below.

FIG. 8 is a schematic block diagram of a communication apparatus 500 provided by the present application. Referring to FIG. 8 , the communication apparatus 500 includes a communication unit 510 and a processing unit 520 .

The communication unit 510 is configured to receive the wake-up signal according to the association relationship between the synchronization signal block SSB and the wake-up signal, the wake-up signal carries indication information, and the indication information is used to indicate whether there is one or more paging access opportunities PO A paging message or a paging list, or the indication information is used to indicate whether there is a PDCCH or PDSCH of one or more POs;

The processing unit 520 is configured to determine, according to the indication information carried in the wake-up information received by the communication unit 510, POs that do not need to receive paging messages, so as to enter sleep in the POs that do not need to receive paging messages.

The communication apparatus 500 in the embodiment of the present application may correspond to the method 200 for sending and receiving a paging message and the terminal device in each embodiment thereof provided by the present application. The units included in the communication apparatus 500 are respectively for implementing the method 200 for sending and receiving a paging message provided by the present application and the corresponding operations and/or processes performed by the terminal device in the various embodiments thereof. I won't go into details here.

Optionally, the communication apparatus 500 may be a terminal device, or may also be a chip or an integrated circuit configured in the terminal device.

FIG. 9 is a schematic block diagram of a communication apparatus 600 provided by the present application. The communication device 600 includes a processing unit 610 and a communication unit 620 .

a processing unit 610, configured to generate a wake-up signal according to the association relationship between the synchronization signal block SSB and the wake-up signal;

The communication unit 620 is configured to send the wake-up signal generated by the processing unit 610 .

The units in the communication apparatus 600 in the embodiment of the present application are respectively for implementing the method 200 for sending and receiving a paging message in the present application and the corresponding operations and/or processes performed by the network device in the embodiments thereof.

Optionally, the communication apparatus 600 may be a network device, or may also be a chip or an integrated circuit configured in the network device.

The communication apparatus 600 in the embodiment of the present application may correspond to the method 200 for sending and receiving a paging message provided by the present application and the network device in each embodiment thereof. The units included in the communication apparatus 600 are respectively for implementing the method 200 for sending and receiving a paging message provided by the present application and the corresponding operations and/or processes performed by the network device in various embodiments thereof. I won't go into details here.

Referring to FIG. 10 , FIG. 10 is a schematic structural diagram of a terminal device 700 provided by the present application. As shown in FIG. 10 , the terminal device 700 includes: one or more processors 701 , one or more memories 702 , and one or more transceivers 703 . The processor 701 is used to control the transceiver 703 to send and receive signals, the memory 702 is used to store a computer program, and the processor 701 is used to call and run the computer program from the memory 702 to execute the method for sending and receiving paging messages proposed in this application 200 and corresponding processes and/or operations performed by the terminal device in each embodiment. The terminal device 700 may be applied to the wireless communication system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiments.

The above-mentioned processor 701 may be configured to perform the actions implemented inside the terminal device described in the above-mentioned method embodiments, for example, to generate a wake-up signal. The transceiver 703 may be configured to perform the sending and/or receiving actions of the network device described in the foregoing method embodiments, for example, sending a paging message to the terminal device.

Referring to FIG. 11 , FIG. 11 is a schematic structural diagram of a network device 3000 provided by the present application. As shown in FIG. 11 , the network device 3000 may be applied to the wireless communication system shown in FIG. 1 above to perform the functions of the network device in the method embodiments of the present application. The network device 3000 may be, for example, a base station.

The network device 3000 may include one or more radio frequency units, such as a remote radio unit (remote radio unit, RRU) 3100 and one or more baseband units (baseband unit, BBU). The baseband unit may also be referred to as a digital unit (DU) 3200 . The RRU 3100 may be called a transceiver unit, which corresponds to the communication unit 620 in FIG. 9 . Optionally, the transceiver unit 3100 may also be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 3101 and a radio frequency unit 3102 . Optionally, the transceiver unit 3100 may include a receiving unit and a sending unit, the receiving unit may correspond to a receiver (or called a receiver, a receiving circuit), and the sending unit may correspond to a transmitter (or called a transmitter, a sending circuit). The part of the RRU 3100 is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals to baseband signals, for example, for sending beam training signals (for example, wake-up signals) to terminal equipment. The part of the BBU 3200 is mainly used to perform baseband processing, control the base station, and so on. The RRU 3100 and the BBU 3200 may be physically set together or physically separated, that is, a distributed base station.

The BBU 3200 is the control center of the network device 3000, and can also be referred to as a processing unit, which can correspond to the processing unit 610 in FIG. 9, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spread spectrum. . For example, the BBU (processing unit) may be used to control the base station to perform the operation procedure performed by the network device in the foregoing method embodiment, for example, to generate the foregoing wake-up signal and the like.

In an example, the BBU 3200 may be composed of one or more boards, and the multiple boards may jointly support a radio access network (eg, LTE network) of a single access standard, or may support different access standards respectively. the wireless access network (eg, LTE network, 5G network or other network). The BBU 3200 also includes a memory 3201 and a processor 3202. The memory 3201 is used to store necessary instructions and data. The processor 3202 is configured to control the network device 3000 to perform necessary actions, for example, to control the network device 3000 to perform the operation procedures performed by the network device in the foregoing method embodiments. The memory 3201 and processor 3202 may serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board.

It should be understood that the network device 3000 shown in FIG. 11 can implement various processes involving the network device in the method embodiments of FIGS. 1 to 7 . The operations and/or functions of each unit in the network device 3000 are respectively to implement the corresponding processes in the method embodiments. To avoid repetition, the detailed description is appropriately omitted here.

The above-mentioned BBU 3200 may be used to perform the actions implemented inside the network device described in the foregoing method embodiments, for example, to generate a wake-up signal according to the association relationship between the SSB and the wake-up signal. On the other hand, the RRU 3100 may be configured to perform the actions that the network device sends to or receives from the terminal device described in the foregoing method embodiments. For details, please refer to the descriptions in the foregoing method embodiments, which will not be repeated here. For example, a wake-up signal, a paging message, etc. are sent to the terminal device.

The network equipment in each of the foregoing apparatus embodiments completely corresponds to the network equipment or the terminal equipment in the terminal equipment and method embodiments, and corresponding steps are performed by corresponding units. For example, a communication unit (transceiver) performs the steps of sending and/or receiving in a method embodiment, and other steps than sending and receiving may be performed by a processing unit (processor). The communication unit can also be divided into a sending unit and a receiving unit, and the transceiver can also be divided into a transmitter and a receiver, respectively.

In addition, the present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on the computer, the computer can execute the method of sending and receiving paging messages according to the embodiments of the present application. Corresponding operations and/or processes performed by the terminal device in the method 200 .

In addition, the present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on the computer, the computer can execute the method of sending and receiving paging messages according to the embodiments of the present application. Corresponding operations and/or processes performed by the network device in the method 200 .

The present application also provides a computer program product, the computer program product includes computer program code, when the computer program code runs on the computer, the computer program code enables the computer to execute the method for sending and receiving paging messages according to the embodiments of the present application. The corresponding action and/or process performed.

The present application also provides a chip, including a memory and a processor, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory to execute the method for sending and receiving a paging message according to the embodiment of the present application Corresponding operations and/or processes performed by network devices.

In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The steps of the foregoing method embodiments may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, detailed description is omitted here.

In addition, the present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on the computer, the computer can execute the method of sending and receiving paging messages according to the embodiments of the present application. Corresponding operations and/or processes performed by the terminal device in the method 200 .

The present application also provides a computer program product, the computer program product includes computer program code, when the computer program code runs on the computer, the computer program code enables the computer to execute the method 200 for sending and receiving a paging message according to the embodiment of the present application. The corresponding action and/or process performed by the device.

The present application further provides a chip, including a memory and a processor, where the memory is used for storing a computer program, and the processor is used for calling and running the computer program from the memory, so as to execute the method 200 for sending and receiving a paging message according to the embodiment of the present application Corresponding operations and/or processes performed by the network device in the .

The present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on the computer, the computer can execute the method 200 for sending and receiving a paging message according to the embodiment of the present application. Corresponding operations and/or processes performed by the network device in the .

The present application also provides a communication system, where the communication system includes the terminal device and the network device in the foregoing embodiments.

The chip described in the embodiments of the present application may be a field-programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processing CPU (central processor unit, CPU), network processor (Network Processor, NP), digital signal processing circuit (digital signal processor, DSP), also can be micro controller unit (micro controller unit, MCU, programmable controller (programmable controller) logicdevice, PLD) or other integrated chips.

The processor in the embodiment of the present application may be an integrated circuit chip, which has signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an FPGA or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the methods disclosed in the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

The memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable memory Except programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM), which acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM) ), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and Direct memory bus random access memory (direct rambusRAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

Optionally, the above-mentioned memory and the memory may be physically independent units, or the memory may also be integrated with the processor.

In the embodiments of the present application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or", which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate that A exists alone, A and B exist at the same time, and B exists alone. where A and B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one item(s)" or similar expressions, refers to any combination of these items, including any combination of single item(s) or plural item(s). For example, at least one of a, b or c can represent: a, b, c, a-b, a-c, b-c, a-b-c, where a, b, c can be single or multiple.

The terms "component," "module," "system," and the like are used in this specification to refer to a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device may be components. One or more components may reside within a process and/or thread of execution. Components may be located on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. A component may be based on data with one or more data groupings (eg, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals). Signals are communicated through local and/or remote processes.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, the disclosed systems, devices and methods may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

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

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

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (30)

1. A method for receiving a paging message, comprising: The terminal device receives the wake-up signal according to the relationship between the synchronization signal block SSB and the wake-up signal, and the wake-up signal carries indication information, and the indication information is used to indicate whether one or more paging access opportunities PO exist. A paging message or a paging list, or the indication information is used to indicate whether there is a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH of one or more POs; The terminal device determines, according to the indication information, POs that do not need to receive paging messages, so as to enter sleep in the POs that do not need to receive paging messages. 2. The method according to claim 1, wherein the time-frequency position of the wake-up signal satisfies one or more of the following conditions: The wake-up signal has the same time domain position and/or frequency domain position as the primary synchronization signal PSS in the synchronization signal block SSB; The wake-up signal and the secondary synchronization signal SSS in the SSB have the same time domain position and/or frequency domain position; The wake-up signal is the same as the physical broadcast channel PBCH in the SSB in the time domain position and/or the frequency domain position; The wake-up signal and the demodulation reference signal DMRS of the PBCH have the same time domain position and/or frequency domain position. 3. The method according to claim 1 or 2, wherein the wake-up signal and the synchronization signal block have a QCL relationship. 4. The method according to any one of claims 1-3, wherein the wake-up signal occupies n orthogonal frequency division symbols OFDM in the time domain, where n is a positive integer, And, the n OFDMs satisfy one or more of the following conditions: The n OFDMs are a subset of symbols occupied by the synchronization signal block SSB in the time domain; The n OFDMs are n OFDMs in one time slot, and the time slot includes 14 or 12 OFDMs. 5. The method according to any one of claims 1-4, wherein the frequency domain position of the wake-up signal satisfies one or more of the following conditions: The wake-up signal is the same as the frequency domain position of the PDCCH or the control resource set of the RMSI; The wake-up signal is the same as the frequency domain location of the PDCCH or control resource set of SIB1; The wake-up signal has the same frequency domain position as the PDSCH of the RMSI or SIB1; The wake-up signal is the same as the frequency domain location of the PDCCH or the control resource set of the paging message; The frequency domain resource occupied by the wake-up signal is the same as the frequency domain resource occupied by the sum of the SSB, the PDCCH of the SIB1 or the control resource set in the frequency domain; The frequency domain resource occupied by the wake-up signal is the sum of the frequency domain interval between the SSB, the PDCCH or the control resource set of the SIB1, and the frequency domain interval between the SSB and the PDCCH or the control resource set of the SIB1 in the frequency domain The occupied frequency domain resources are the same. 6. The method according to any one of claims 1-5, wherein the indication information is used to indicate whether a paging message or a paging list exists in a plurality of POs in a discontinuous reception period, or The indication information is used to indicate whether there are PDCCHs or PDSCHs of multiple POs in a discontinuous reception period, the multiple POs belong to a PO group in the discontinuous reception period, and the discontinuous reception period includes: At least two PO groups, there is an intersection between two adjacent PO groups in the at least two PO groups, and each PO group includes one or more POs, And, the method also includes: The terminal device receives paging messages in POs in the PO group that have paging messages or paging lists, and goes to sleep in POs that do not have paging messages or paging lists in the PO group. 7. The method according to any one of claims 1-5, wherein the indication information is used to indicate whether a paging message or a paging list exists in multiple POs, or the indication information is used to indicate Whether there are PDCCHs or PDSCHs of multiple POs, the multiple POs belong to the same PO group or different PO groups, the multiple POs are in one-to-one correspondence with multiple discontinuous reception periods, and each of the multiple POs A PO is the PO configured to the terminal device in the corresponding discontinuous reception period, And, the method also includes: The terminal device receives the paging message when the paging message or paging list PO exists in the plurality of POs, and goes to sleep in the PO in which the paging message or paging list does not exist in the plurality of POs . 8. The method according to any one of claims 1-7, wherein the wake-up signal also carries one or more of the following information: Time index information of the synchronization signal block SSB, frame number information or field indication information, and blind detection information of PDCCH. 9. A method for sending a paging message, comprising: The network device generates a wake-up signal according to the association relationship between the SSB and the wake-up signal, and the wake-up signal carries indication information, and the indication information is used to indicate whether there is a paging message in one or more paging access opportunities PO or a paging list, or, the indication information is used to indicate whether there is a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH of one or more POs; The network device sends the wake-up signal. 10. The method according to claim 9, wherein the time-frequency position of the wake-up signal satisfies one or more of the following conditions: The wake-up signal has the same time domain position and/or frequency domain position as the primary synchronization signal PSS in the synchronization signal block SSB; The wake-up signal and the secondary synchronization signal SSS in the SSB have the same time domain position and/or frequency domain position; The wake-up signal is the same as the physical broadcast channel PBCH in the SSB in the time domain position and/or the frequency domain position; The wake-up signal and the demodulation reference signal DMRS of the PBCH have the same time domain position and/or frequency domain position. The method according to claim 9 or 10, wherein the wake-up signal and the synchronization signal block have a QCL relationship. 12. The method according to any one of claims 9-11, wherein the wake-up signal occupies n orthogonal frequency division symbols OFDM in the time domain, where n is a positive integer, And, the n OFDMs satisfy at least one of the following conditions: The n OFDMs are a subset of symbols occupied by the synchronization signal block SSB in the time domain; The n OFDMs are n OFDMs in one time slot, and the time slot includes 14 or 12 OFDMs. 13. The method according to any one of claims 9-12, wherein the frequency domain position of the wake-up signal satisfies one or more of the following conditions: The wake-up signal is the same as the frequency domain position of the PDCCH or the control resource set of the RMSI; The wake-up signal is the same as the frequency domain location of the PDCCH or control resource set of SIB1; The wake-up signal has the same frequency domain position as the PDSCH of the RMSI or SIB1; The wake-up signal is the same as the frequency domain location of the PDCCH or the control resource set of the paging message; The frequency domain resource occupied by the wake-up signal is the same as the frequency domain resource occupied by the sum of the SSB, the PDCCH of the SIB1 or the control resource set in the frequency domain; The frequency domain resource occupied by the wake-up signal is the sum of the frequency domain interval between the SSB, the PDCCH or the control resource set of the SIB1, and the frequency domain interval between the SSB and the PDCCH or the control resource set of the SIB1 in the frequency domain The occupied frequency domain resources are the same. 14. The method according to any one of claims 9-13, wherein the method further comprises: The network device groups a plurality of POs in a discontinuous reception period to obtain a plurality of PO groups, and each PO group includes one or more POs, wherein there is an intersection between two adjacent PO groups; And, the indication information is used to indicate whether a paging message or a paging list exists in a plurality of POs in a PO group in the one discontinuous reception period, or the indication information is used to indicate whether the PO exists PDCCH or PDSCH of multiple POs in a group. 15. The method according to any one of claims 9-13, wherein the indication information is used to indicate whether a paging message or a paging list exists in multiple POs, or the indication information is used to indicate Whether there is a PDCCH or PDSCH of the multiple POs, the multiple POs are in a one-to-one correspondence with multiple discontinuous reception periods, and each PO in the multiple POs is configured for the corresponding discontinuous reception period. The PO of the terminal equipment described above. 16. The method according to any one of claims 9-15, wherein the wake-up signal further carries one or more of the following information: Time index information of the synchronization signal block SSB, frame number information or field indication information, and blind detection information of PDCCH. 17. A communication device, comprising: a communication unit, configured to receive a wake-up signal according to the association relationship between the synchronization signal block SSB and the wake-up signal, the wake-up signal carries indication information, and the indication information is used to indicate one or more paging access opportunities PO Whether there is a paging message or a paging list in , or, the indication information is used to indicate whether there is a physical downlink control channel PDCCH or a physical downlink shared signal PDSCH of one or more POs; The processing unit is configured to determine, according to the indication information carried in the wake-up information received by the communication unit, POs that do not need to receive paging messages, so as to enter sleep at the POs that do not need to receive paging messages. 18. The communication device according to claim 17, wherein the time-frequency position of the wake-up signal satisfies one or more of the following conditions: The wake-up signal has the same time domain position and/or frequency domain position as the primary synchronization signal PSS in the synchronization signal block SSB; The wake-up signal and the secondary synchronization signal SSS in the SSB have the same time domain position and/or frequency domain position; The wake-up signal is the same as the physical broadcast channel PBCH in the SSB in the time domain position and/or the frequency domain position; The wake-up signal and the demodulation reference signal DMRS of the PBCH have the same time domain position and/or frequency domain position. The communication device according to claim 17 or 18, wherein the wake-up signal occupies n orthogonal frequency division symbols OFDM in the time domain, where n is a positive integer, And, the n OFDMs satisfy one or more of the following conditions: The n OFDMs are a subset of symbols occupied by the synchronization signal block SSB in the time domain; The n OFDMs are n OFDMs in one time slot, and the time slot includes 14 or 12 OFDMs. 20. The communication device according to any one of claims 17-19, wherein the frequency domain position of the wake-up signal satisfies one or more of the following conditions: The wake-up signal is the same as the frequency domain position of the PDCCH or the control resource set of the RMSI; The wake-up signal is the same as the frequency domain location of the PDCCH or control resource set of SIB1; The wake-up signal has the same frequency domain position as the PDSCH of the RMSI or SIB1; The wake-up signal is the same as the frequency domain location of the PDCCH or the control resource set of the paging message; The frequency domain resource occupied by the wake-up signal is the same as the frequency domain resource occupied by the sum of the SSB, the PDCCH of the SIB1 or the control resource set in the frequency domain; The frequency domain resource occupied by the wake-up signal is the sum of the frequency domain interval between the SSB, the PDCCH or the control resource set of the SIB1, and the frequency domain interval between the SSB and the PDCCH or the control resource set of the SIB1 in the frequency domain The occupied frequency domain resources are the same. 21. The communication device according to any one of claims 17-20, wherein the indication information is used to indicate whether a paging message or a paging list exists in a plurality of POs in a discontinuous reception period, Or the indication information is used to indicate whether there are PDCCHs or PDSCHs of multiple POs within a discontinuous reception period, the multiple POs belong to a PO group within the discontinuous reception period, and within the discontinuous reception period Including at least two PO groups, there is an intersection between two adjacent PO groups in the at least two PO groups, and each PO group includes one or more POs, And, the processing unit is configured to determine that a PO of a paging message or a paging list exists in the PO group, and/or, to determine that there is no PO of a paging message or a paging list in the PO group; And, the communication unit is configured to receive a paging message in a PO determined by the processing unit to have a paging message or a paging list, and to receive a paging message in a PO determined by the processing unit without a paging message or a paging list into sleep. 22. The communication device according to any one of claims 17-21, wherein the indication information is used to indicate whether a paging message or a paging list exists in multiple POs, or the indication information is used In order to indicate whether there is a PDCCH or PDSCH of multiple POs, the multiple POs are in one-to-one correspondence with multiple discontinuous reception periods, and each PO in the multiple POs is configured to the corresponding discontinuous reception period. the PO of the communication device, And, the processing unit is configured to determine that a PO of a paging message or a paging list exists in the plurality of POs, and/or, to determine that there is no PO of a paging message or a paging list in the plurality of POs; And, the communication unit is configured to receive a paging message in the existence paging message or paging list PO determined by the processing unit, and there is no paging message or paging in the plurality of POs determined by the processing unit Go to sleep in the PO of the list. 23. The communication device according to any one of claims 17-22, wherein the wake-up signal further carries one or more of the following information: Time index information of the synchronization signal block SSB, frame number information or field indication information, and blind detection information of PDCCH. 24. A communication device, characterized in that it comprises: A processing unit, configured to generate a wake-up signal according to the association relationship between the SSB and the wake-up signal, where the wake-up signal carries indication information, and the indication information is used to indicate whether there is one or more paging access opportunities PO A paging message or a paging list, or the indication information is used to indicate whether there is a physical downlink control channel PDCCH or a physical downlink shared channel PDSCH of one or more POs; a communication unit for sending the paging message. 25. The communication device according to claim 24, wherein the time-frequency position of the wake-up signal satisfies one or more of the following conditions: The wake-up signal has the same time domain position and/or frequency domain position as the primary synchronization signal PSS in the synchronization signal block SSB; The wake-up signal and the secondary synchronization signal SSS in the SSB have the same time domain position and/or frequency domain position; The wake-up signal is the same as the physical broadcast channel PBCH in the SSB in the time domain position and/or the frequency domain position; The wake-up signal and the demodulation reference signal DMRS of the PBCH have the same time domain position and/or frequency domain position. 26. The communication device according to claim 24 or 25, wherein the wake-up signal occupies n orthogonal frequency division symbols OFDM in the time domain, where n is a positive integer, And, the n OFDMs satisfy at least one of the following conditions: The n OFDMs are a subset of symbols occupied by the synchronization signal block SSB in the time domain; The n OFDMs are n OFDMs in one time slot, and the time slot includes 14 or 12 OFDMs. 27. The communication device according to any one of claims 24-26, wherein the frequency domain position of the wake-up signal satisfies one or more of the following conditions: The wake-up signal is the same as the frequency domain position of the PDCCH or the control resource set of the RMSI; The wake-up signal is the same as the frequency domain location of the PDCCH or control resource set of SIB1; The wake-up signal has the same frequency domain position as the PDSCH of the RMSI or SIB1; The wake-up signal is the same as the frequency domain location of the PDCCH or the control resource set of the paging message; The frequency domain resource occupied by the wake-up signal is the same as the frequency domain resource occupied by the sum of the SSB, the PDCCH of the SIB1 or the control resource set in the frequency domain; The frequency domain resource occupied by the wake-up signal is the sum of the frequency domain interval between the SSB, the PDCCH or control resource set of the SIB1, and the frequency domain interval between the SSB and the PDCCH or control resource set of the SIB1 in the frequency domain The occupied frequency domain resources are the same. 28. The communication device according to any one of claims 24-27, wherein the processing unit is further configured to group a plurality of POs included in a discontinuous reception period to obtain a plurality of PO groups, Each PO group includes one or more POs, wherein there is an intersection between two adjacent PO groups; And, the indication information is used to indicate whether there is a paging message or a paging list in a plurality of POs in a PO group of a plurality of PO groups in the one discontinuous reception period, or, the indication information is used for to indicate whether there are PDCCHs or PDSCHs of multiple POs in the one PO group. 29. The communication device according to any one of claims 24-27, wherein the indication information is used to indicate whether a paging message or a paging list exists in a plurality of POs, or the indication information is used for In order to indicate whether there are PDCCHs or PDSCHs of multiple POs, the multiple POs are in one-to-one correspondence with multiple discontinuous reception periods, and each PO in the multiple POs is configured for the same discontinuous reception period in the corresponding discontinuous reception period. A PO for a terminal device. 30. The communication device according to any one of claims 24-29, wherein the wake-up signal further carries one or more of the following information: Time index information of the synchronization signal block SSB, frame number information or field indication information, and blind detection information of PDCCH.

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