WO2019141123A1

WO2019141123A1 - Signal transmission method and device

Info

Publication number: WO2019141123A1
Application number: PCT/CN2019/071062
Authority: WO
Inventors: 高宽栋; 黄煌; 颜矛; 邵华
Original assignee: 华为技术有限公司
Priority date: 2018-01-19
Filing date: 2019-01-10
Publication date: 2019-07-25
Also published as: CN110062461B; CN110062461A

Abstract

Provided by the present application are a signal transmission method and device. A network device sends paging indication messages to a plurality of terminal devices. A first terminal device among the plurality of terminal devices receives at least one paging indication message at a first paging time, determines a first random access time period corresponding to the first paging time according to first mapping comprising at least one paging time and at least one random access time period, and then sends a first random access preamble at a first random access time within the first random access time period, thus enabling the network device to receive at least one random access preamble during at least one random access time period, to determine at least one paging time according to at least one random access time period or at least one random access preamble, and to send a paging message to a terminal device which corresponds to the at least one paging time, thus avoiding sending a paging message to a plurality of terminal devices, and saving overhead for signal transmission.

Description

Signal transmission method and device

The present application claims priority to Chinese Patent Application No. 201810055716.X filed on Jan. 19, 2018, the entire disclosure of which is incorporated herein by reference. in.

Technical field

The present application relates to the field of communications, and more particularly to a method and apparatus for signal transmission.

Background technique

The future 5th Generation (5G) communication of the system adopts a higher carrier frequency than Long Term Evolution (LTE), such as carrier frequencies above 6 GHz such as 38 GHz and 72 GHz, thereby achieving greater bandwidth and higher. Transmission rate wireless communication. Due to the high carrier frequency, the wireless signal experiences more severe fading during spatial propagation, and even the receiving end may have difficulty detecting the wireless signal. To this end, a beamforming technique will be employed in a 5G communication system to obtain a beam with good directivity. Beamforming techniques are used to limit the ability to transmit signals within a certain beam direction, thereby increasing the efficiency of signal transmission and reception.

Since the beam coverage of the beamforming technology is narrow, and the network device does not know the specific location of the terminal device, the network device can send broadcast information (for example, paging) for beam scanning to cover the unknown terminal device. s position. In order to reduce the overhead of beam scanning during the transmission of the paging message, when there is paging information, the network device may send a paging indication in advance, and the terminal device receives the paging indication message broadcasted by the network device. The preamble is used to transmit the paging signal with the better signal quality, and the network device sends the paging information according to the beam reported by the terminal device, so that the network device can avoid receiving the poor direction sending paging to the terminal device, thereby reducing The overhead of beam scanning.

In the conventional solution, the terminal device may feed back the random access preamble at any random access opportunity after receiving the paging indication message, and when multiple terminal devices corresponding to different paging occasions feed back the random access preamble, The network device cannot distinguish the terminal device corresponding to the paging occasion to which a random access preamble belongs, so that the network device cannot exclude the terminal device that cannot be paged, that is, the paging message is still sent to each terminal device, causing the paging message transmission. The overhead is large.

Summary of the invention

The present application provides a method and apparatus for signal transmission, which can reduce the overhead of transmission.

In a first aspect, a method for signal transmission is provided, the method includes: receiving, by a terminal device, a paging indication message on a first paging occasion; and determining, by the terminal device, the first paging occasion according to the first mapping relationship a first random access timing period, where the first mapping relationship is a mapping relationship between at least one paging occasion and at least one random access timing period; the first random access of the terminal equipment in the first random access timing period The first random access preamble is sent at the timing.

The network device sends a paging indication message to the plurality of terminal devices, where the first terminal device of the plurality of terminal devices receives the at least one paging indication message at the first paging occasion, and according to the at least one paging occasion and the at least one random The first mapping relationship of the access timing period determines a first random access timing period corresponding to the first paging occasion, and further sends the first randomness at the first random access occasion in the first random access timing period. Accessing the preamble, so that the network device receives at least one random access preamble on at least one random access opportunity period, and determines at least one paging occasion according to the at least one random access timing period or the at least one random access preamble, and Sending a paging message to the terminal device corresponding to the at least one paging occasion, thereby avoiding sending a paging message to multiple terminal devices, thereby saving the overhead of signal transmission.

In some possible implementations, the first mapping relationship is a one-to-one mapping relationship between the at least one paging occasion and the at least one random access opportunity period; or the first mapping relationship is the at least one random access opportunity a mapping relationship between each random access timing period and at least one paging occasion in the period; or the first mapping relationship is a mapping between each paging occasion in the at least one paging occasion and at least one random access timing period relationship.

In some possible implementation manners, the random access occasion period corresponding to the second paging occasion in the first mapping relationship is the Kth random access occasion after the random access timing period where the second paging occasion is located a period, where K is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship.

In some possible implementation manners, the random access timing period corresponding to the second paging occasion in the at least one paging occasion in the first mapping relationship is after a preset time threshold after the second paging occasion The Lth random access timing period, where L is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship.

After a period of time, all terminal devices can be guaranteed to have time to process the received paging indication message and send a random access preamble.

In some possible implementation manners, the second paging occasion corresponding to the second paging occasion corresponds to the Nth paging occasion after the second paging occasion and the second paging occasion. The Qth random access timing period in the multiple random access timing periods, where N is an integer greater than 0, Q is an integer greater than or equal to 0, and the second paging occasion is the first mapping relationship Any one of the paging occasions.

In some possible implementation manners, the random access timing period corresponding to the second paging occasion in the first mapping relationship is after the second paging occasion and the Jth paging occasion after the second paging occasion The Pth random access timing period, where J is an integer greater than 0, P is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship.

In some possible implementation manners, the random access occasion period corresponding to the second paging occasion in the first mapping relationship is the second paging occasion and the first paging occasion after the second paging occasion M consecutive random access timing periods in a plurality of random access timing periods, where I is an integer greater than or equal to 0, M is a positive integer, and the second paging occasion is in the first mapping relationship Any one of the paging opportunities.

In some possible implementations, the method further includes: determining, by the terminal device, the value of the M according to the number of synchronization signal blocks corresponding to the first random access occasion.

In some possible implementations, before the sending, by the terminal device, the first random access preamble on the first random access occasion in the first random access opportunity period, the method further includes: the terminal device according to the second The mapping relationship and the first paging occasion determine the first random access preamble, where the second mapping relationship is a mapping relationship between the at least one paging occasion and the at least one random access preamble.

In some possible implementations, before the terminal device sends the first random access preamble on the first random access occasion in the first random access opportunity period, the method further includes: the terminal device according to the third The mapping relationship and the at least one synchronization signal block corresponding to the first random access occasion determine the first random access preamble, where the third mapping relationship is a mapping relationship between the at least one synchronization signal block and the at least one random access preamble.

In some possible implementation manners, in a case where the paging indication message carries at least one paging packet identifier, and the terminal device belongs to the first paging packet corresponding to the at least one paging packet identifier, Before the first random access preamble is sent on the first random access occasion in the first random access occasion period, the method further includes: determining, by the terminal device, the first mapping relationship according to the fourth mapping relationship a random access preamble, the fourth mapping relationship being a mapping relationship between at least one paging packet and at least one random access preamble.

In some possible implementations, before the terminal device sends the first random access preamble on the first random access occasion in the first random access opportunity period, the method further includes: the terminal device according to the fifth a mapping relationship, a sixth mapping relationship, and the paging indication message, determining the first random access occasion, where the fifth mapping relationship is the at least one paging indication message received by the first paging occasion and the at least one synchronization signal block a mapping relationship, where the sixth mapping relationship is a mapping relationship between the at least one synchronization signal block and a random access occasion in a random access timing period.

In some possible implementations, before the determining, by the terminal device, the first random access opportunity corresponding to the first paging occasion according to the first mapping relationship, the method further includes: receiving, by the terminal device, configuration information, the configuration information Carrying the first mapping relationship.

In some possible implementations, the method further includes: the terminal device receiving second configuration information, where the second configuration information includes a number of paging packets, a number of paging occasions in a random access timing period, and adjacent paging At least one of a time interval of the timing, a number of synchronization signal blocks corresponding to the random access occasion, and the second configuration information is determined according to the number of access preamble types, wherein the number of the access preamble types It is determined according to a priority level of at least two of a paging packet, a random access occasion, and a synchronization signal block.

In a second aspect, a method for signal transmission is provided, wherein a network device sends a paging indication message to a plurality of terminal devices; the network device receives at least a random access opportunity in a random access opportunity period a random access preamble; the network device determines at least one paging occasion according to the at least one random access opportunity period or the at least one random access preamble; the network device sends a paging message to the at least one terminal device, the at least one The terminal device is a terminal device corresponding to the at least one paging occasion.

The terminal device receives the at least one paging indication message at the first paging occasion, and determines the first random corresponding to the first paging occasion according to the first mapping relationship including the at least one paging occasion and the at least one random access timing period. And the first random access preamble is sent on the first random access occasion in the first random access timing period, so that the network device receives the at least one random access on the at least one random access timing period. Preamble, and determining at least one paging occasion according to the at least one random access timing period or the at least one random access preamble, and sending a paging message to the terminal device corresponding to the at least one paging occasion, thereby avoiding to multiple terminals The device sends a paging message, which saves the overhead of signal transmission.

In some possible implementation manners, the determining, by the network device, the at least one paging occasion according to the at least one random access opportunity period, the network device determining, according to the first mapping relationship and the at least one random access timing period, At least one paging occasion, the first mapping relationship is a mapping relationship between at least one random access timing period and at least one paging occasion.

In some possible implementation manners, the first mapping relationship is a mapping relationship between the at least one paging occasion and the at least one random access opportunity period.

In some possible implementation manners, the first mapping relationship is a mapping relationship between each random access timing period and at least one paging occasion in the at least one random access timing period.

In some possible implementation manners, the first mapping relationship is a mapping relationship between each paging occasion in the at least one paging occasion and at least one random access timing period.

In some possible implementations, the method further includes: determining, by the network device, the first paging packet according to the random access preamble and the third mapping relationship, where the third mapping relationship is at least one paging packet and random access The mapping relationship of the preamble; wherein the sending, by the network device, the paging message to the at least one terminal device comprises: sending, by the network device, the paging message to the terminal device in the first paging packet.

In some possible implementation manners, the determining, by the network device, the at least one paging occasion according to the at least one random access preamble includes: determining, by the network device, the at least one random access preamble and the second mapping relationship For a paging occasion, the second mapping relationship is a mapping relationship between at least one random access preamble and at least one paging occasion.

In some possible implementations, before the network device sends the paging indication message on the at least one first paging occasion, the method further includes: the network device sending first configuration information, where the first configuration information carries The first mapping relationship.

A third aspect provides a method for signal transmission, wherein a network device sends a paging indication message to a plurality of terminal devices; the network device receives at least a random access opportunity in a random access opportunity period. a random access preamble, where the at least one random access timing period is determined by the terminal device according to the first mapping relationship, where the first mapping relationship is a mapping relationship between at least one random access timing period and at least one paging occasion, where The network device sends a paging message according to the at least one random access preamble.

In some possible implementations, the network device can implement each of the possible implementations of the second aspect described above.

In a fourth aspect, a device for signal detection is provided, which may be a terminal device or a chip in the terminal device. The device has the functionality to implement the various embodiments of the first aspect described above. This function can be implemented in hardware or in hardware by executing the corresponding software. The hardware or software includes one or more units corresponding to the functions described above.

In a possible design, when the device is a terminal device, the terminal device comprises: a processing unit and a transceiver unit, the processing unit may be, for example, a processor, and the transceiver unit may be, for example, a transceiver, the transceiver Includes RF circuitry. Optionally, the terminal device further includes a storage unit, which may be, for example, a memory. When the terminal device includes a storage unit, the storage unit is configured to store a computer execution instruction, the processing unit is coupled to the storage unit, and the processing unit executes a computer execution instruction stored by the storage unit to cause the terminal device to perform the first aspect described above Any method of signal detection.

In another possible design, when the device is a chip in the terminal device, the chip includes: a processing unit and a transceiver unit, and the processing unit may be, for example, a processor, and the transceiver unit may be, for example, the chip. Input/output interface, pins or circuits, etc. The processing unit may execute a computer-executable instruction stored by the storage unit to cause the chip within the terminal to perform the method of signal detection of any of the above aspects. Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the terminal device, such as a read-only memory ( Read-only memory (ROM) or other types of static storage devices, random access memory (RAM), etc. that can store static information and instructions.

The processor mentioned in any of the above may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above. The first aspect of the method of signal detection is performed by an integrated circuit.

In a fifth aspect, the application provides a device for detecting a signal, and the device may be a terminal device or a chip in the terminal device. The device has the functionality to implement the various embodiments of the second aspect described above. This function can be implemented in hardware or in hardware by executing the corresponding software. The hardware or software includes one or more units corresponding to the functions described above.

In a possible design, when the device is a terminal device, the terminal device comprises: a processing unit and a transceiver unit, the processing unit may be, for example, a processor, and the transceiver unit may be, for example, a transceiver, the transceiver The radio frequency circuit is included. Optionally, the terminal device further includes a storage unit, and the storage unit may be, for example, a memory. When the terminal device includes a storage unit, the storage unit is configured to store a computer execution instruction, the processing unit is coupled to the storage unit, and the processing unit executes a computer execution instruction stored by the storage unit to cause the terminal device to perform the second aspect Any method of signal detection.

In another possible design, when the device is a chip in the terminal device, the chip includes: a processing unit and a transceiver unit, and the processing unit may be, for example, a processor, and the transceiver unit may be, for example, the chip. Input/output interface, pins or circuits, etc. The processing unit may execute a computer-executable instruction stored by the storage unit to cause the chip in the terminal device to perform the method of signal detection according to any of the above second aspects. Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the terminal device, such as a ROM or may be stored. Static information and instructions for other types of static storage devices, RAM, etc.

Wherein, the processor mentioned in any of the above may be a CPU, a microprocessor, an ASIC, or an integrated circuit of one or more programs for controlling the method of signal detection of the second aspect described above.

According to a sixth aspect, there is provided a communication system comprising: the apparatus of the above fourth aspect and the apparatus of the above fifth aspect.

In a seventh aspect, a computer storage medium is provided, the program storage medium storing program code for indicating execution of any of the first aspect, the second aspect, and the third aspect, or any possible The instructions of the method in the implementation.

In an eighth aspect, a computer program product comprising instructions for causing a computer to perform any of the first, second, and third aspects above, or any possible implementation thereof, when executed on a computer Methods.

The network device sends a paging indication message to the multiple terminal devices, where the first terminal device of the multiple terminal devices receives the at least one paging indication message at the first paging occasion, and includes at least one paging occasion according to the foregoing solution. Determining, by the first mapping relationship with the at least one random access opportunity period, a first random access timing period corresponding to the first paging occasion, and further, at a first random access timing in the first random access timing period Transmitting a first random access preamble, so that the network device receives at least one random access preamble on at least one random access opportunity period, and determines at least one homing according to the at least one random access timing period or the at least one random access preamble And calling the opportunity, and sending a paging message to the terminal device corresponding to the at least one paging occasion, thereby avoiding sending the paging message to the multiple terminal devices, thereby saving the overhead of signal transmission.

DRAWINGS

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application;

2 is a schematic flowchart of an application scenario of an embodiment of the present application;

3 is a schematic structural diagram of a paging occasion according to an embodiment of the present application;

4 is a schematic flowchart of a method for signal transmission according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a method for signal transmission according to another embodiment of the present application; FIG.

6 is a schematic diagram of a method of signal transmission according to still another embodiment of the present application;

7 is a schematic diagram of a method of signal transmission according to still another embodiment of the present application;

FIG. 8 is a schematic diagram of a method for signal transmission according to still another embodiment of the present application; FIG.

9 is a schematic diagram of a method of signal transmission according to still another embodiment of the present application;

FIG. 10 is a schematic block diagram of an apparatus for signal transmission according to an embodiment of the present application; FIG.

11 is a schematic structural diagram of an apparatus for signal transmission according to an embodiment of the present application;

FIG. 12 is a schematic block diagram of an apparatus for signal transmission according to another embodiment of the present application; FIG.

FIG. 13 is a schematic structural diagram of an apparatus for signal transmission according to another embodiment of the present application; FIG.

FIG. 14 is a schematic block diagram of a communication system for signal detection according to an embodiment of the present application.

Detailed ways

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

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, and a wideband code division multiple access. (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5G system or New Radio (New Radio, NR) and so on.

The terminal device in the embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or User device. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computer devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or in the future evolution of the Public Land Mobile Network (PLMN) The terminal device and the like are not limited in this embodiment of the present application.

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

1 is a schematic diagram of a communication system of the present application. The communication system of FIG. 1 may include user equipment 10 and network equipment 20. The network device 20 is configured to provide communication services for the user equipment 10 and access the core network. The user equipment 10 accesses the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 20, thereby performing communication with the network. The arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between user equipment 10 and network device 20.

FIG. 2 shows a schematic diagram of an application scenario of the present application.

201. The network device can detect the paging message in real time.

The network device can directly send the paging message by using the beam in different directions, that is, directly performing step 206. It should be understood that the paging mechanism that directly performs step 206 after performing step 201 may be referred to as a "beam scanning paging mechanism" in the following embodiments.

202. When detecting the arrival of the paging message, the network device sends a paging indication message to the corresponding terminal device by using a paging occasion (PO) corresponding to each terminal device.

Specifically, the paging indication message may include control resource information and/or data resource information, or may be a Control Resource Set (CORESET), or may be Downlink Control Information (DCI), where The control resource information may be a Physical Downlink Control Channel (PDCCH); the data resource information may be a Physical Downlink Shared Channel (PDSCH).

The data bits in the paging indication message may carry the UE group information, may also carry the truncated identifier (ID) information of the partially paged UE, and may also carry part or all of the UE ID information of the paged UE. All UE packet information can be carried. The paging indication message may also be referred to as a paging index, or part of the information in the paging indication message may also be referred to as a paging index. The paging packet may be a UE packet, may be a packet based on a UE ID, may be a packet based on a different SS/PBCH block, or may be a packet based on a paging index.

As shown in FIG. 3, the terminal device may wake up with a discontinuous reception (DRX) cycle, and the DRX cycle may include at least one paging occasion, and at least one terminal device may perform signals on the same paging occasion. Transmission, and different paging occasions are used to serve different terminal devices in one DRX cycle. That is to say, the paging occasion for signal transmission between the network device and a certain terminal device is fixed. For example, the paging occasions for serving a certain terminal device in different DRX cycles in FIG. 3 are all paging occasions numbered 5. Specifically, the network device can transmit signals through a portion of the time units in each paging occasion.

The number of the random access preamble types in the present application may be a random access preamble number at a random access occasion in a random access period, and the random access preamble and the random access timing may have a binding relationship. The random access preamble may also be referred to as a random access resource, and the random access opportunity may also be a random access resource.

It should be understood that, in the embodiment of the present application, the signal transmitted in the paging occasion may be a paging indication message or a paging message, which is not limited in this application.

It should also be understood that the time unit may be a frame, a subframe, a time slot or a mini time slot, which is not limited in this application.

That is, each paging occasion can be used to page multiple terminal devices, and one terminal device can only receive paging messages on one paging occasion within one DRX cycle.

Optionally, before the step 202, the network device may send the information in the paging occasion or the time-frequency resource and the Synchronous Signal Block (SS blocks)/Physical Broadcast Channel (Physical Broadcast Channel) through the configuration information to the terminal device. The mapping relationship of the PBCH) block and the mapping relationship between the SS/PBCH block and the random access occasion in the random access timing period. The information in the paging occasion may be a paging indication message, which may be the control information of the paging indication message, the data information of the paging indication message, the data information of the paging message, or the paging message. Control information. The time-frequency resource in the paging occasion may be the time-frequency resource of the control information of the paging indication message, the time-frequency resource of the data information of the paging indication message, or the time-frequency resource of the control information of the paging information, or It is the data information time-frequency resource of paging information.

It should be understood that the paging occasion includes at least one paging indication message or paging message, and the paging indication message or the paging message in the paging occasion may be in one-to-one correspondence with the SS/PBCH block, or may be one-to-many, It can be many to one.

It should be understood that the random access timing and the SS/PBCH block may be one-to-one correspondence, or may be one-to-many or may be a many-to-one relationship.

Optionally, the mapping relationship between the paging indication message or the paging message and the SS/PBCH block can be understood as the transmission of the paging indicator message or the paging message used in the first paging occasion and the transmission of the SS in the SS/PBCH block. /PBCH uses the same beam.

The associations in this application may also be referred to as mappings, correspondences, and correlations. When the random access period or the random access set is related to the paging occasion, the terminal device of the paging occasion may send a random access preamble at the random access occasion in the random access period, and may be used for the request. When paging messages, or reporting beams, when random access timings are associated with paging messages or paging indicators in SS/PBCH blocks or paging occasions, they may also indicate that they have quasi co-located (QCL). Relationships may be transmitted or received using the same delay spread or the same Doppler spread or the same average gain, the same average delay, or the same spatial domain parameters, or the same beam.

In this paper, i0+i*P1~i0+(i+1)*P1-1 is used to indicate the index number of item 1 associated with jth item 2, where i0 can represent the starting index of item 1, when there is When multiple layers are associated, they can be related to multiple items. P1 can indicate the number of items 1, and can also indicate the number of items 1 associated with item 2, or the number of items 2, or the item 1 associated with item 1. The number of items 2, which has another expression, ie i=j0+floor(j/P1) or i=j0+ceil(j/P1) or i=j0+j/P1, the two expressions are the same meaning , where j0 can represent the starting index of item 2, j0 can be related to i0, when P1 is equal to 1, i=j1+j or j=i0+i; can also be expressed as associated with i-th item 1 and j The index of item 3 of item 2 is i1+i+j*P2, which can also be expressed as i1+floor(i/Q1)+j*P2 or i8+ceil(i/P2)+j*P3, and can also express For the item i to item i, the index of item 4 of the jth item 2 and the kth item 3 is i2+i+j*P2+k*P3*P2, which can also be expressed as i2+floor(i/ Q1)+j*P2+k*P3*P2 or i2+ceil(i/Q1)+j*P2+k*P3*P2, where P2 is the item associated with item 1. Number 4, P3 is related to the number of 4 2 project. Where item 1 is a paging packet, Q1 represents the number of items 1 of the shared item 4, SS/PBCH block, PO, random access preamble, any one of the paging message windows, and item 2 can be a paging group, SS/ PBCH block, PO, any of the random access preambles, item 3 may be any one of a paging packet, an SS/PBCH block, a PO, a random access preamble, and item 4 may be a paging packet, SS/PBCH block , PO, any of the random access preambles.

The definition g(X, Y) can be expressed as X/Y, and can also be expressed as floor(X/Y), and can also be expressed as ceil(X/Y).

It should be understood that the synchronization signal block of the embodiment of the present application may include an SS and/or a PBCH. The SS can contain PSS, can also include SSS or both PSS and SSS.

Optionally, the paging indication message may carry an identity (ID) of the paging packet. Each paging packet may include a plurality of terminal devices, and each paging packet specifically includes which terminal devices may be pre-configured by the terminal device and the network device, or may be pre-agreed. For example, the paging indication message corresponds to different paging packets or different paging packets by data bit order, for example, the paging indication message corresponds to different paging packets or different paging packets by data bits.

Optionally, in a case that the received paging indication message does not carry the ID of the paging packet, the terminal device may directly perform step 204. It should be understood that the paging mechanism performing steps 201, 202, 205, 206 may be referred to as a "feedback based paging mechanism" in the following embodiments.

203. After receiving the paging indication message, the terminal device detects whether the terminal device is in the paging packet.

In the case where the paging indication message carries the ID of the paging packet, the terminal device determines whether it is within the group based on the ID of the paging packet.

204. The terminal device determines a random access opportunity according to the paging indication message received in the paging occasion corresponding to the terminal device.

Specifically, the paging indication message that can be received in the paging occasion corresponds to the SS/PBCH block, and the SS/PBCH block has a mapping relationship with the random access timing in the random access timing period. The terminal device determines, according to the received paging indication message, an SS/PBCH block corresponding to the paging indication message received at the first paging occasion, and then determines a random access channel occasion according to the SS/PBCH block (Random access channel occasion, The first random access opportunity in RO).

It should be noted that the random access opportunity period may include at least one random access opportunity. In the case that multiple random access occasions are included in the random access timing period, the random access occasion included in the random access time period may also be referred to as “random access unit” or “random access opportunity set”. ". The first random access occasion may be at the same position at any random access timing.

It should be understood that the random access timing period may be a random access resource association period, or may be a random access resource configuration period, or may be part of a random access resource association period, or may be part of a random access resource configuration period. . Random access timing period resource configuration period. The random access timing period can be understood as the amount of time or time width for transmitting random access resources; or the number of ROs.

It should be understood that the period of the random access occasion in the embodiment of the present application may be any one of 10ms, 20ms, 40ms, 80ms, and 160ms.

205. The terminal device sends a random access preamble to the network device.

The terminal device transmits the random access preamble on the first random access occasion in any one or more random access occasion periods after receiving the paging indication message.

Optionally, after the step 203, if the terminal device is not in the paging packet, the terminal device may go to a dormant state; if the terminal device is in the paging packet, send a random access preamble to the network device, randomly. The access preamble can be used to indicate the paging packet in which the terminal device is located.

206. The network device sends a paging message to the at least one terminal device according to the random access.

Specifically, the network device may determine, for each terminal device, each random access preamble is sent, and then may send a paging message to the terminal device that feeds back the random access preamble, and each paging message carries the ID of the terminal device.

Optionally, the paging message may also carry a disaster warning message such as a system update message, an earthquake disaster message, a volcano disaster message, and a tsunami disaster message.

It should be understood that the feedback mechanism that performs steps 201-206 in the following embodiments is referred to as a "paging mechanism based on paging packets and feedback."

In the conventional scheme, if the "feedback-based paging mechanism" and the "paging mechanism based on paging packets and feedback" are used as shown in FIG. 2, the terminal device may be at any random access timing after receiving the paging indication message. The feedback random access preamble, in the case that multiple terminal devices corresponding to different paging occasions feed back the random access preamble, the network device cannot distinguish which terminal device corresponding to a paging occasion belongs to a random access preamble, such that the network device The terminal device that cannot be paged cannot be excluded, that is, the paging message is still sent to each terminal device, which causes a large overhead of signal transmission.

FIG. 4 is a schematic flowchart of a method for signal transmission in an embodiment of the present application.

401. The network device sends a paging indication message to multiple terminal devices. Correspondingly, the terminal device receives the paging indication message on the first paging occasion corresponding to the terminal device.

Specifically, as shown in FIG. 3, the first paging occasion includes transmitting at least one paging indication message, and different paging occasions in one DRX period may be used to serve different terminal devices, and the network device may be at least one paging occasion. One or more paging indication messages are sent to multiple terminal devices. One of the plurality of terminal devices receives a paging indication message on a paging occasion corresponding to the terminal device. In the following embodiment, the paging occasion corresponding to the terminal device is taken as an example of the first paging occasion.

Optionally, the time-frequency resource location for transmitting the paging indication message in the embodiment of the present application or the time period of transmitting all the paging indication messages corresponding to all the actually transmitted or possibly transmitted SS/PBCH blocks in the field, or The time-frequency resource location for transmitting the paging message or the time period for transmitting all paging messages corresponding to multiple or one SS/PBCH block in the field may be referred to as "paging opportunity".

Optionally, the time-frequency resource location for transmitting the paging indication message and the time-frequency resource location for transmitting the paging message in the embodiment of the present application are referred to as “paging occasions”, and the first part of the paging occasion is The frequency resource location is used to transmit a paging indication message, and the second part of the time-frequency resource location in the paging occasion is used to transmit a paging message, where the first partial time-frequency resource location does not overlap with the second partial time-frequency resource location, The paging occasion may include other time-frequency resources in addition to the first part of the time-frequency resource and the second part of the time-frequency resource, that is, the network device sends the paging indication message to the terminal device at the same paging occasion. Paging message.

It should be understood that the time-frequency resource location of the paging indication message or the paging message in the embodiment of the present application may correspond to multiple or one SS/PBCH block, and may also correspond to all SS/PBCH blocks in the field.

Optionally, the paging occasion for sending the paging indication message and the paging occasion for sending the paging message in the embodiment of the present application may also be paging occasions corresponding to the terminal device in different DRX periods.

It should be understood that the paging indication messages sent by the network device through different time units may be the same or different.

It should also be understood that the terminal device corresponding to each paging occasion may include one or more.

It should also be understood that each paging occasion includes at least one time unit, which may be a frame, a subframe, a time slot or a mini time slot, which is not limited in this application.

402. The terminal device determines, according to the first mapping relationship and the first paging occasion, a first random access timing period, where the first mapping relationship is a mapping relationship between at least one paging occasion and at least one random access timing period.

Optionally, the first mapping relationship may include a mapping relationship between the at least one paging occasion and the at least one random access opportunity period. That is, the network device or the terminal device can determine a corresponding or unique random access timing period according to any paging occasion.

For example, as shown in FIG. 5, the paging occasion PO1 corresponds to the random access timing period 2, and the paging occasion PO2 corresponds to the random access timing period 3. In the embodiment of the present application, the random access timing period may be the start position of the ROS1 to the start position of the ROS2, and the RO included in the access timing period is the RO included in the ROS1, and therefore the embodiment of the present application is The random access timing period and the Random Access Opportunity Set (ROS) may not be distinguished.

It should be understood that the number of at least one paging occasion in the first mapping relationship may be the number of all paging occasions included in one DRX cycle.

Optionally, the first mapping relationship may include a mapping relationship between each random access opportunity period in the at least one random access opportunity period and the at least one paging occasion. That is to say, one or more paging occasions may correspond to the same random access timing period, and the network device or the terminal device may determine a corresponding random access timing period according to any paging occasion. The one or more paging occasions may be a paging occasion within a random access timing period, or may be a paging occasion within a plurality of random access time periods.

Optionally, the first mapping relationship may be pre-assigned by the network device and the terminal device, or defined by a standard, or sent by the network device in advance, which is not limited in this application.

Optionally, the first mapping relationship may include a mapping relationship between each paging occasion in at least one paging occasion and at least one random access timing period. That is to say, one paging occasion can correspond to one or more random access timing periods.

Specifically, a paging occasion corresponds to multiple random access timing periods, and different random access timing periods may also be used to distinguish different SS/PBCH blocks or different paging packets.

Optionally, the network device may send the second configuration information to the terminal device before the step 402, for example, between the step 401 and the step 403, or before the step 401, where the second configuration information may carry the first mapping relationship.

In an embodiment, if the paging occasion in the first mapping relationship is in one-to-one correspondence with the random access timing period, the random access timing period corresponding to the second paging occasion in the first mapping relationship may be the first The Kth random access timing period after the random access opportunity period in which the paging occasion is located, where K may be any positive integer. For example, when two adjacent paging occasions are the same as the random access timing period, the paging timing corresponds to the random access timing period.

Specifically, the second paging occasion may be any paging occasion included in the first mapping relationship, and the second paging occasion may be the same paging occasion as the first paging occasion. That is, each paging occasion in the first mapping relationship has a feature corresponding to the second paging occasion. For convenience of description, the second paging occasion in the first mapping relationship is taken as an example for description. This application does not limit this.

The random access occasion period corresponding to the second paging occasion in the first mapping relationship may be any random access timing period after the random access timing period in which the second paging occasion is located. Specifically, the second paging occasion in the first mapping relationship corresponds to the Kth random access timing period after the second paging occasion, and the value of K may be pre-agreed by the network device and the terminal device (for example, K The value of the value of 0, 1, or 2) may be dynamically changed by the configuration of the second configuration information. In the case of configuration by the second configuration information, the value of K may be 0-16. At least one value in . Where K=0 indicates that the second paging occasion corresponds to the random access timing period in which the second paging occasion is located. The corresponding correspondence may be an association, a mapping, or a determination, that is, the paging terminal of the paging occasion sends a random access preamble at a random access occasion on a corresponding random access timing period, requesting Or trigger a paging message.

For example, taking PO1 as the second paging occasion as an example, as shown in FIG. 5, ROS2 corresponding to PO1 is the second random access timing period after ROS1 where PO1 is located.

Optionally, if multiple paging occasions correspond to the same random access timing period, the random access timing period may be one of the multiple paging occasions (eg, the last or first) paging occasion. The Kth random access opportunity period after the random access opportunity period.

It should be noted that the value of K may be the same as the value of K in the foregoing embodiment. To avoid repetition, details are not described herein.

In another embodiment, if the paging occasion in the first mapping relationship is in one-to-one correspondence with the random access occasion, the random access timing period corresponding to the second paging occasion in the first mapping relationship may be the first The Lth random access timing period after the preset time threshold after the second paging occasion, L is an integer greater than or equal to 0.

Specifically, the preset time threshold may be a time period, such as a time slot, an ms, a subframe, a frame, a symbol, or a sampling interval, which is not limited in this application. For example, the preset time threshold may be any one of 1 slot, 2 slots, and 3-640 slots, or the preset time threshold is any one of 1 ms, 2 ms, and 3-80 ms. Value, or the preset time threshold is 1 subframe, 2 subframes, or any of 3-40 subframes, or the preset time threshold is 0.5 frames, 1 frame, 1.5 frames -8.5 Any one of the frames takes a value, or the preset time threshold is 1 symbol, 2 symbols, any one of 3-1024 symbols, or the preset time threshold is 1 sampling interval, 2 The sampling interval, any one of 3-2048 sampling intervals. The time threshold may be related to the time interval of the paging occasion, may be related to the size of the random access period, may be related to the duration of the paging occasion, or may be related to the duration of the random access period. The paging occasion interval may be an adjacent paging occasion interval or a non-adjacent paging occasion interval. The time threshold may be a multiple of the paging opportunity interval or a multiple of the random access period size.

For example, as shown in FIG. 6, PO1 may correspond to the first ROS after the time threshold t after PO1, that is, ROS2.

It should be understood that the second paging occasion may be calculated from the starting position of the second paging occasion, or may be from the ending position of the second paging occasion, or may also be from the second paging. The time slot starting position of the paging indication message is received in the timing, which is not limited in this application.

It should be noted that the value of L may be the same as the value of K in the foregoing embodiment. To avoid repetition, details are not described herein. Optionally, the value of L may also be determined according to a period of the DRX, a time interval of the adjacent paging occasion, a period of the SS/PBCH block, and a subcarrier interval.

Optionally, the specific value of the preset time threshold t may be determined according to any one of a random access timing period T, a time interval of an adjacent paging occasion, and a period T of the SS/PBCH block. For example, if the subcarrier spacing is u, then t=2 ^u .

Specifically, the value of t may be a random access timing period T, or may be a multiple of T, for example, t=2T, 3T or 4T.

Optionally, if the paging occasion in the first mapping relationship is in one-to-one correspondence with the random access timing period, the random access timing period corresponding to the second paging occasion in the first mapping relationship is the second paging The Qth random access timing period in a plurality of random access timing periods between the timing and the Nth paging occasion after the second paging occasion.

Specifically, in a case where there are multiple random access timing periods between the second paging occasion and the Nth paging occasion after the second paging occasion, the second paging occasion may correspond to the multiple The first random access timing period in the random access timing period may also correspond to the second random access timing period of the multiple random access timing periods, or may correspond to the Qth random access opportunity The period may also correspond to the last random access opportunity period. Wherein, when N is 1, the multiple random access timing period is a random access timing period between the second paging occasion and the adjacent next paging occasion. For example, when the time interval of the adjacent paging occasion is greater than the random access timing period, the second paging occasion may correspond to the first random access timing period of the multiple random access timing periods, or may correspond to The second random access timing period of the multiple random access timing periods may correspond to the Qth random access timing period, may also correspond to the last random access timing period, and may also correspond to multiple random access Multiple random access periods into the timing cycle. The one or more random access opportunity periods may be one or more random access timing periods within a kth time interval after the time interval of the paging occasion. The value of K is any one of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16. The multiple random access timing periods may be M random access timing periods.

It should be noted that the value of Q is less than or equal to the number of random access timing periods between the second paging occasion and the Nth paging occasion.

For example, if N is 1 and Q is 4, as shown in FIG. 7, PO1 corresponds to ROS5 among the 4 ROS between PO1 and PO2.

Optionally, if the paging occasion in the first mapping relationship corresponds to the random access opportunity period, the second paging occasion in the first mapping relationship may correspond to the Nth in the K1 time interval. Random access timing.

Specifically, the time interval between the second paging occasion and the next paging occasion (for example, referred to as a third paging occasion) may be referred to as a current time interval, that is, K1=0, the third paging occasion and the next The time interval between paging occasions (eg, referred to as a fourth paging occasion) may be referred to as a second time interval. The second paging occasion may correspond to a first random access timing period of the plurality of random access timing periods in the K1 time interval, or a second random access timing corresponding to the K1 time interval. The period, or corresponds to the last random access opportunity period in the K1 time interval. The time interval of different paging occasions may also be referred to as the paging occasion period.

Specifically, the time interval between the second paging occasion and the next paging occasion (for example, referred to as a third paging occasion) may be referred to as a current time interval, that is, K1=0, and the third paging occasion The time interval between the next one or more paging occasions (eg, referred to as the fourth paging occasion) may be referred to as a second time interval, K1=2. The second paging occasion may correspond to a first random access timing period of the plurality of random access timing periods in the K1th time interval thereafter, or a second random number corresponding to the K1 time interval The access timing period, or corresponds to the last random access opportunity period in the K1 time interval. The time interval of different paging occasions may also be referred to as the paging occasion period, and the value of K1 may be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, Any one or more of 14, 15, 16. The correspondence here refers to that the terminal device of the paging occasion sends a random access preamble on a random access occasion within a corresponding random access period.

Optionally, the paging occasion within a period of time t1 may be associated with one or more random access periods within a random access period within a period of time t2. For example, t1 can be equal to t2. For example, t1 is 160ms and t2 is 160ms. The paging occasion in t1 can be associated with the random access period of the K2th t2 period after it.

It should be noted that the value of the N may be the same as the value of N in the foregoing embodiment. To avoid repetition, details are not described herein.

Optionally, the second paging occasion in the first mapping relationship may correspond to the Pth random access timing period after the Jth paging occasion after the second paging occasion, where J, P are positive The integer or 0, or the second paging occasion in the first mapping relationship may correspond to the Pth random access opportunity period after the second paging occasion.

For example, as shown in FIG. 8, PO1 corresponds to the first random access timing period (ie, ROS6) of the first PO (ie, PO2) after the PO1.

Optionally, the second paging occasion may correspond to M random connections in multiple random access timing periods between the second paging occasion and the first paging occasion after the second paging occasion. The incoming timing period, or the second paging occasion may correspond to the first M random access timing periods after the first paging occasion interval after the second paging occasion interval, or the second paging occasion may correspond to The first M random access timing periods after the first paging occasion interval after the second paging occasion.

The time interval of the paging occasion may be the time interval between the paging occasion and the next adjacent paging occasion, or may be the time interval between the paging occasion and the M2 paging occasion after the paging occasion. Where M2 can be 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,20,24,28,32,36,40,44 Any one or more of 48, 52, 56, 60, 64. The value of M may be related to the number of SS/PBCH blocks associated with an RO. For example, it may be a multiple of the number of SS/PBCH blocks associated with one RO, which may be doubled, may be the same, may be twice, or may be four. It can be three times, it can be 1/2, it can be 1/3, or it can be 1/4. The value of I can be 1, can be 2, can be 0, can be 3, or can be 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 Any one or more values.

The second paging occasion may also correspond to the M3 random access period after the second paging occasion time threshold T2ms or the M3 random access period after the 12th paging occasion after the second paging occasion, where The value of I2 or T2 can be one or more of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16. The value of M3 can be 0, 1, 2, 3, 4 or the last one.

For example, as shown in FIG. 7, PO1 may correspond to three random access timing periods (ie, ROS3, ROS4, and VR3) in a plurality of random access timing periods between PO1 and the first PO (ie, PO2) after PO1. ROS5), for example, PO1 may correspond to a plurality of random access timing periods in a plurality of random access timing intervals within a first PO paging occasion interval after a paging occasion interval of PO1.

Optionally, the value of the M may be determined according to the number Q1 of random access timing periods in the time interval between the second paging occasion and the first paging occasion. For example, the value of M can be any value less than or equal to Q1.

Optionally, the value of the M may be determined according to the number of SS/PBCH blocks corresponding to the random access opportunity period, Q2, or the number of SS/PBCH blocks corresponding to the random access occasion, Q3, for example, M=nQ3, n It can be any positive number, for example, 1, 2, 1/2.

Optionally, the paging indicator message may carry the ID of the paging packet, and if the terminal device does not belong to the terminal device included in the paging packet corresponding to the ID of the paging packet, the terminal device may enter a sleep state. If the terminal device belongs to the terminal device included in the paging packet corresponding to the ID of the paging packet, the terminal device may feed back the random access preamble to the network device.

Optionally, the value of the M may be determined according to the number of paging packets corresponding to the second paging occasion.

Specifically, the network device can communicate with a plurality of terminal devices at a second paging occasion, and the plurality of terminal devices can be divided into at least two paging packets. The value of M may be the number of paging packets to which all terminal devices capable of communicating with the network device at the second paging occasion belong, or a multiple of the number of the paging packets (eg, integer multiple, fraction times ).

It should be noted that, in the embodiment of the present application, the paging packet is grouped according to a certain rule by using multiple terminal devices included in one area or multiple terminal devices corresponding to one paging occasion.

It should be understood that the number of terminal devices in different paging packets may be the same or different.

It should also be understood that the "paging packet" may also be referred to as a "terminal packet", and the name of each packet in which the present application divides a plurality of terminal devices into different packets is not limited.

Optionally, if the value of M is determined according to the number of paging packets corresponding to the second paging occasion, the random access timing period corresponding to the second paging occasion is the current paging occasion or the current paging occasion time. The random access timing period in the K1th time interval after the interval, wherein the value of K1 may be any one of 0-40.

Optionally, the terminal device determines, according to the fifth mapping relationship, the sixth mapping relationship, and the received paging indication message, the first random access occasion in the first random access timing period, where the fifth mapping relationship is a paging occasion And a mapping relationship between the received paging indicator message and the at least one SS block/PBCH block, where the sixth mapping relationship is a mapping relationship between the at least one SS block/PBCH block and the at least one random access occasion.

Specifically, the fifth mapping relationship may be a mapping relationship between the received paging indication message and the SS block/PBCH block in each paging occasion of the multiple paging occasions, or the fifth mapping relationship is corresponding to the terminal device. The mapping relationship between the paging indication message received in the first paging occasion and the SS block/PBCH block. Determining, by the terminal device, the corresponding SS block/PBCH block according to the received paging indication message and the fifth mapping relationship, and determining, according to the determined SS block/PBCH block and the sixth mapping relationship, the first random number in the first random access timing period Access timing.

It should be understood that the mapping relationship between the SS block/PBCH block and the random access occasion in the embodiment of the present application may be that the beam used in the SS block/PBCH transmission SS signal is the same as the beam used to transmit the signal on the random access occasion.

Optionally, the fifth mapping relationship and the sixth mapping relationship may be pre-agreed by the network device and the terminal device or defined by the standard, or sent by the network device in advance, which is not limited in this application.

Optionally, the first configuration information may be carried in a Physical Broadcast Channel (PBCH), a remaining minimum system information (RMSI), a System Information Block (SIB) 1, and an SIB2. Any of Media Access Control-control element (MAC-CE), Downlink Control Information (DCI), Radio Resource Control (RRC), and System Information 3-20 One item.

Specifically, the SIB1 may carry the first configuration information of the paging message, and may also carry the first configuration information that sends the random access preamble, and the SIB1 information may also be referred to as the RMSI information. The SIB1 transmission is sent using a continuous small time period, and each successive time period can be associated with one SS/PBCH block. One or more time periods constitute the time window for SIB1 transmission.

In order to distinguish the SIB1 message from other system messages, the RNTI of the SIB1 is different from the RNTI of the other messages. The RNTI of the SIB1 can be separately defined as the SIB1-RNTI, and the RNTI can control the SIB1. The CRC of the PDCCH of the resource is scrambled, and the RNTI of other system messages may be an SI-RNTI, an OSI-RNTI, or an RNTI corresponding to each system message. In this way, the network device can also send other system messages in the time window of the SIB1, and the system message of the SIB1 is distinguished from other system messages by using different RNTIs. When the base station detects other system messages in the message window of SIB1, the RNTI can be used for distinguishing. The other is to use different time to distinguish, do not send other system information within the time window of RMSI transmission. Each system message has its own time window, which is used to send the corresponding system information. In order to distinguish between SIB1 information and other system information, the time window of SIB1 may not overlap with other information, and the time window of SIB1 may be continuously placed in time with the time window of other system messages. The time window of SIB1 is the position of the first time window, which is the starting position of the time window placement of each system message.

When the content of the SIB1 is relatively large, the SIB1 may be divided into multiple transport blocks for transmission, and multiple transport blocks may be transmitted at different times in the SIB1 period. The data information of the DCI or SIB1 of the SIB1 may carry indication information, indicating The number of transport blocks of the SIB1, for example, may indicate that the number of transport blocks of the SIB1 is one or two, and may be indicated by using 1 bit, or may be multiplexed with other data bits for indication. It is also possible to indicate whether the number of transmission blocks of the SIB1 is one or more, for example, using 1 bit for indication, and other data can be multiplexed for transmission. The indication of multiple transport blocks of the SIB1 may be indicated in the data information or DCI of the first transport block, or may be carried in the data information or DCI of all transport blocks, or may be carried in the data information of the partial data block. Or the information carried in the DCI may also be carried in the RV version, or the DMRS carries the information. These transport blocks can be sent on different frequencies or at different times. Multiple transport blocks of SIB1 may be sent in one time slot, or may be sent in multiple time slots, for example, in two time slots; may also be sent in a supervisory timing of control resources, or may be in multiple control The monitoring time of the resource is sent, for example, the monitoring time of two control resources is sent; or may be sent in different periods, for example, in two adjacent periods, or in three adjacent periods, or Sent in the next 4 cycles. Each transport block may have separate control resource information or may share control resource information.

Optionally, the second configuration information may further carry a DRX cycle, a number of paging frames in the DRX cycle, a number of paging occasions in the paging frame, a paging interval, and a message for receiving the paging indication message. Starting position.

Specifically, the time interval of the paging occasion may be in units of frames, or may be in units of time slots, which is not limited in this application. For example, the paging interval may be 1 frame, 2 frames, 4 frames, or 8 frames, or may be 1 time slot, 2 time slots, 3 time slots, or 4 time slots, etc. . The paging occasion period may be that a plurality of paging occasions are repeatedly defined as a paging occasion period in the same mode according to time-spaced or unequal-spaced time domain location allocation, for example, four in a paging frame. The paging occasions are respectively slot 0, slot 4, slot 5 and slot 9, and the four paging occasions are in the same time-frequency resource location in each paging frame. That is, the paging occasion period is one paging frame. The paging interval may be a time interval between two adjacent paging occasions, or may be a time interval between two paging occasions of the interval K4 paging occasion, and K4 may be 1 or 2, may be 3, may be 4, may be 8, may be 6, or may be 16, may be 12, or may be 10.

It should be noted that the paging intervals in one DRX cycle may be the same or different. If the time interval of each pair of adjacent paging occasions is the same, the time interval of the paging occasion can be regarded as the period of the paging occasion.

Optionally, the terminal device may directly calculate the location of the RO directly according to the UE ID, for example, a calculation method SFN mod T2=(T2div N)*(UE ID mod N), where N may represent one or more ROs The number of frames in the period may also represent the number of frames in the interval of adjacent POs, or an offset SFN mod T2=(T2div N)*(UE ID mod N)+k4 may be added to the formula, the offset It can be a positive integer, a negative integer, or 0. The value of k4 can be related to the starting position of the PO period associated with the PO, or the associated RO period index after the RO period in which the PO is located. T2 may represent the size of the RO period, may also indicate the size of the interval of adjacent POs, and may also indicate the size of multiple RO periods.

Optionally, the time domain starting location of the paging indication message in the configuration information may be configured by the network device in an explicit manner, or may be configured by the network device in an implicit manner.

Specifically, the paging indication message transmitted at the first paging occasion has a mapping relationship with the SS/PBCH block, and different SS/PBCH blocks may correspond to different beams. The time domain starting position of the network device configured by the network device in an explicit manner may be configured based on the SS/PBCH block index, or may be configured by using data bits based on a separate field, or may be combined with other information. Configuration. The time domain starting position of the network device by configuring the paging indication message in an implicit manner may be by multiplexing other information, such as a frequency band, a demodulation reference signal (DMRS), a modulation and coding strategy (Modulation and Coding). Scheme, MCS), port, scrambling, and Cyclic Redundancy Check (CRC) and other information implicit indication.

It should be noted that the network device indicates the time domain start position of the paging indication message by using an SS/PBCH block index, where the SS/PBCH block index may be an index based on the SS/PBCH block that may be transmitted, or may be based on The index of the number of the actually transmitted SS/PBCH block. The actual transmitted SS/PBCH block index indicates an SS/PBCH block index that is used to transmit the SS/PBCH in the SS/PBCH block index of the SS/PBCH. For example, the SS/PBCH block index of the possible transmission SS/PBCH below 3 GHz is 0, 1, 2, 3, and the SS/PBCH block index of the actual transmission SS/PBCH in a network device is 0, 1, 3, That is to say, if the latter manner is used to indicate the start time position of the paging indication message, the network device does not encode the SS/PBCH block with the SS/PBCH block index of 2, so that the SS of the SS/PBCH is actually transmitted. The index of the /PBCH block is 0, 1, 2. The network device may pre-configure which index mode is used to indicate the start time position of the paging indication message, or may be in a fixed manner or a mutually agreed manner.

Optionally, the time domain starting location of the network device configured by using the second configuration information to configure the paging indication message may be a time domain starting location of the direct configuration paging indication message, for example, indicating the paging indication message by using an SS/PBCH block index. The starting position of the time domain.

Alternatively, the time domain offset and the fixed time domain location may be determined by the location of the SS/PBCH block.

Specifically, if the SS/PBCH is frequency-division multiplexed with the paging indication message, the time domain location of the transmission SS/PBCH block and the transmission paging indication message may be the same.

Optionally, the time domain starting location of the network device configured to configure the paging indication message by using the second configuration information may be only configuring the time domain offset. That is to say, the network device and the terminal device pre-arrange a fixed time domain location, and the time domain start position of the paging indication message can be determined by the time domain offset and the fixed time domain location.

It should be understood that the time domain offset may be based on time slots, fields, subframes, frames, symbols or mini-slots, and the like. The fixed time domain location may be a certain time domain location, a starting location, or an ending location in a period of time, and the period of time may be a frame, a subframe, a time slot, a symbol, or a sample, etc. within the DRX cycle.

Alternatively, the time domain offset and the fixed time domain location may be determined by subcarrier spacing.

Specifically, if the subcarrier spacing is 15 kHz, the time domain offset and the fixed time domain location may be any one of 0-9; if the subcarrier spacing is 30 kHz, the time domain offset and the fixed time domain location may be It is any one of 0-20 slots.

It should be understood that the time domain starting position of the paging indication message may be a time domain starting location of a control resource (eg, PDCCH), or may be a time domain starting location of a data resource (eg, PDSCH), or may be The starting position of the control resource and the data resource is not limited in this application.

Optionally, the second configuration information may include the number of paging packets, the number of paging occasions in a random access timing period, the time interval of the adjacent paging occasion, and the number of synchronization signal blocks corresponding to the random access occasion. At least one of them.

Specifically, the network device may configure, by using the second configuration information, the number of paging packets for the terminal device, the number of paging occasions in the random access timing period, the time interval of the adjacent paging occasion, and the synchronization signal corresponding to the random access timing. Each of the number of blocks. Or the network device may configure, by using the second configuration information, the number of paging packets for the terminal device, the number of paging occasions in a random access timing period, the time interval of the adjacent paging occasion, and the synchronization signal block corresponding to the random access timing. Part of the information in the number, the remaining part of the information can be determined by the information already configured.

Optionally, in a case where the types of random access preambles are different, the number of random access preamble types may also be the number of random access preambles.

Optionally, the number of random access preamble types may also be the number of random access preambles.

Optionally, the second configuration information includes a number of random access preamble categories within one RO and a number of POs in the RO period.

Specifically, the terminal device may derive the number of paging packets in the PO and the number of random access preamble types of each PO according to the number of random access preamble types in one RO and the number of POs in the RO period. For example, the number of POs in a RO period is K1, and the number of random access preambles used for paging in one RO is N5, and the number of random access preamble types per PO is Q=floor(N5/K1) Or Q=ceil(N5/K1) or Q=N5/K1.

Optionally, the second configuration information includes a number of paging packets within the PO and a number of POs within the RO period.

Specifically, the terminal device may determine the number of random access preamble types in the RO and the number of random access preamble types of each PO according to the number of paging packets in the PO and the number of POs in the RO period.

Optionally, the second configuration information includes a number of random access preamble types of each PO and a number of POs in the RO period.

Specifically, the terminal device may determine the number of random access preamble types in the RO and the number of paging packets in the PO according to the number of random access preamble types of each PO and the number of POs in the RO period.

Optionally, the second configuration information includes a number of random access preamble types per PO, a number of paging packets in the PO, and a number of POs in the RO period.

Specifically, the terminal device may determine, according to the number of random access preamble types of each PO, the number of paging packets in the PO, and the number of POs in the RO period, the number of random access preamble types used for paging in the RO. .

Optionally, the second configuration information includes a number of random access preamble types of each PO and a number of POs used for paging the random access preamble types and a number of POs in the RO period, so that the terminal device may be configured according to the The second configuration information determines the number of paging packets within the PO.

Optionally, the second configuration information includes a number of random access preamble types in the RO, a number of paging packets in the PO, and a number of POs in the RO period, so that the terminal device can derive random access of each PO. The number of leading species.

Optionally, the second configuration information includes the number of random access preamble types in the RO, the number of paging packets in which the paging packets in the PO share one or a group of random access preambles, and the number of POs in the RO period. The terminal device can derive the number of random access preamble types and the number of paging packets for each PO.

Optionally, the second configuration information includes the number of paging packets, the number of paging packets in which the paging packets in the PO share one or a group of random access preambles, and the number of POs in the RO period, so that the terminal device can derive The number of random access preamble types for each PO and the number of paging random access preamble types within the RO.

Optionally, the second configuration information includes a number of random access preamble types of each PO, a number of paging packets in which a paging packet in the PO shares one or a group of random access preambles, and a number of POs in an RO period, In this way, the terminal device can derive the number of paging packets and the number of paging random access preamble types in the RO.

It should be understood that, in the foregoing embodiment, the terminal device may not perform the determination of the number of random access preamble types in the RO if the number of the random access preamble types and the number of paging packets in the RO are not required by the terminal device. The operation of the number of paging packets and/or the number of paging packets is not limited in this application.

Optionally, the network device may configure the number of paging packets to be the same as the number of access preamble types, that is, the network device may determine the number of paging packets according to the number of access preamble types.

Optionally, the network device may also set the number of POs in one DRX period or set the time interval of the neighboring PO according to the number of access preamble types, or set the SS associated with one RO according to the number of random access preambles. /PBCH block number.

Optionally, the network device may determine, according to a priority level of at least two of the paging packet, the random access occasion, and the synchronization signal block, the number of the type of the access preamble, and determine the number according to the number of the access preamble types. The second configuration information may include the number of paging packets, the number of paging occasions in a random access timing period, the time interval of the adjacent paging occasion, and the number of synchronization signal blocks corresponding to the random access timing. At least one of them.

Alternatively, the terminal devices of P (P ≥ 1) paging packets may share the same random access preamble, and the value of P is related to the number of SS blocks or to the number of paging occasions in one RO period.

Specifically, in the embodiment of the present application, when a value is related to the number of POs in one RO period or a value is related to the number of RO periods in the adjacent PO interval, the value is related to the size of the RO period, that is, It is related to the size of the interval of adjacent POs, which is related to the DRX cycle size, and is related to the number of POs nB in the DRX cycle, which is related to the number of POs in a paging frame. The network device may also limit the number of POs in a RO period to a maximum value of 4 or 8, or 2, or 16. The number of POs in the DRX period may be limited according to the RO period, or the DRX period may be limited. For example, the RO period is 160 ms. The maximum number of POs is 2, which limits the maximum number of POs in the DRX cycle to T/8.

Optionally, the second configuration information includes a T value of the RO period, and the terminal device may determine, according to the T value of the RO period, a number of POs in the DRX period or a time interval of two adjacent POs.

Alternatively, the RO period may be the same as the interval of the adjacent paging occasions, for example, the RO period is 160 ms, and the number of paging occasions in the DRX period is T/16.

Alternatively, the RO period may be a multiple of the interval of adjacent paging occasions. For example, the RO period is 160 ms, and the number of paging occasions in the DRX period is T/8.

Optionally, the network device determines that the number of random access preamble types for paging in the random access occasion in the RO period may be a mapping relationship according to the number of items distinguished by the random access preamble. The item may be at least one of a number of paging packets, a number of paging occasions in a random access timing period, a time interval of an adjacent paging occasion, and a number of synchronization signal blocks corresponding to a random access occasion.

Specifically, there may be a correspondence between the number of paging occasions in the random access timing period and the time interval of the adjacent paging occasions. Therefore, the random access preamble can be used to distinguish one of the items, and another item can be known. In the description of the following embodiments, "the number of paging occasions in the random access timing period" and "the time interval of the adjacent paging occasions" are described as one item.

Optionally, the priority level of each item may be pre-agreed by the network device and the terminal device or defined by the standard, or pre-configured by the network device, which is not limited in this application.

Optionally, the network device may adopt a fixed priority order, and may also configure at least two foregoing priority orders in a configuration manner. For the sake of simplicity, the highest priority in the embodiment of the present application is referred to as an item. 1, the second highest priority is called item 2, and the lowest priority is called item 3.

It should be noted that item 1, item 2 and item 3 can be called items, and there are sub-items under each item. For example, when K1 SS/PBCH blocks are associated with one RO, item 1 is SS/PBCH block. The sub-items of item 1 are the respective SS/PBCH blocks, and the i-th sub-item is the i-th SS/PBCH block. For example, when K2 POs are associated with one RO cycle, item 2 is PO, item 2 is sub-item, and i-th sub-item is i-th PO. For example, when one PO corresponds to K3 paging packets, item 3 is a paging packet, the sub-item of item 3 is each paging packet, and the i-th sub-item is the i-th paging packet.

Optionally, the mapping relationship between the random access preamble and the at least three items may be a mapping relationship between an index of the random access preamble and an index of each item.

In a specific embodiment, if the random access preamble is used to distinguish each of the two items in the foregoing items, the number of random access preamble types may be obtained as follows:

For example, the number of items 1 is M11, and the number of items 2 is M12, and the number of random access preamble types for paging in the RO period is N=M11*M12.

Optionally, in the case of N=M11*M12, the random access preamble index associated with the i-th sub-item 1 in item 1 is i0+i*M12~i0+(i+1)*M12-1, and The random access preamble index n associated with the kth sub-item 2 in the item 2 is n=j0+k, where i0 may represent the starting index of the random access preamble, and the value of i0 may be a positive integer or 0. Can be a negative integer, the value of j0 can be related to the index in item 1 where item 2 is located, or can be related to the number of items 2 or the number of items 2 distinguished by using a random access preamble, and can also be related to item 1 The number correlation may also be related to the initial index of the random access preamble used for paging the packet, or may be related to the number of random access preamble types allocated by the item 2, or may be related to the random access preamble type allocated by the item 1. The number is related, for example j0=i*M12+i0, where i represents the index of item 2.

It should be understood that i0 can also be mapped to the starting index of the random access preamble on the corresponding PO, or can be undefined, and represents a given value, which is a constant, and can also be other values, which is not limited herein.

For example, the item 1 is a PO, and one PO has a mapping relationship with five random access preambles. If the index of the first PO is index0, the index of the random access preamble corresponding to index0 is 0, 1, 2, 3, 4. In this way, the index of the second PO is index1, the index of the random access preamble corresponding to index1 is 5-9, the index of the third PO is index2, and the index of the random access preamble corresponding to index2 is 10-14. The index of the random access preamble corresponding to the index of the i POs is index0+i*5~index0+(i+1)*5-1.

For example, the number of random access preambles is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, item 1 is SS block, and item 2 is PO, The number of SS blocks is three, and the number of POs is four. The index of the random access preamble corresponding to the index of the first SS block is 0, 1, 2, 3, and the index of the second SS block is index1. The index of the corresponding random access preamble is 4, 5, 6, and 7. The index of the third SS block is the index of the random access preamble corresponding to index2, which is 8, 9, 10, 11, and the index of the fourth SS block. The random access preamble corresponding to index3 is 12, 13, 14, and 15. The index of the random access preamble corresponding to the first PO is 0, the index of the random access preamble corresponding to the second PO is 1, and the index of the random access preamble corresponding to the third PO is 2, the fourth The index of the random access preamble corresponding to the PO is 3. The index of the random access preamble corresponding to the first PO in index1 is 4, the index of the random access preamble corresponding to the second PO is 5, and the index of the random access preamble corresponding to the third PO is 6, the fourth The index of the random access preamble corresponding to the PO is 7, and so on.

For another example, in project 2, there are at least two sub-items sharing a random access preamble, the total number of sub-items in item 2 is M12, the number of items 2 for distinguishing is M13, and the number of items 1 for distinguishing is M11. Then, the number of random access preamble types for paging in the RO period is N=M11*M13. Wherein, if K9 sub-items in item 2 share a random access preamble, then K9 and the total number M12 of items 2 satisfy the formula K9=M12/M13, or K9=floor(M12/M13), or K9=ceil (M12/M13).

For another example, in the item 2, there are multiple sub-items sharing a random access preamble, and the number of co-allocated random access preamble types is M13. The random access preamble index j assigned to the i-th sub-item is j=i0+i mod M13.

Optionally, in the case of N=M11*M13, the random access preamble index associated with the i-th sub-item 1 in item 1 is i0+i*M13~i0+(i+1)*M13-1, and The random access preamble index n associated with the kth sub-item in item 2 is n=j1+floor(k/K4), where j1=i*M13+i0.

For another example, if the total number of sub-items of item 1 is M11, and the number of sub-items that need to be distinguished in item 1 is M14 ≤ M11, and all sub-items in item 2 are not distinguished by using random access preamble, then within the RO period The number of random access preamble types used for paging is N=M14. Wherein, if K10 sub-items in item 1 share a random access preamble, then K10=M11/M14, or K10=floor(M11/M14), or K10=ceil(M11/M14).

For another example, in the item 1, there are multiple sub-items sharing a random access preamble, and the number of co-allocated random access preamble types is M13. The random access preamble index j assigned to the i-th sub-item is j=i0+i mod M13.

Alternatively, in the case of N=M14, the random access preamble index n associated with the jth sub-item in item 1 is n=i0+floor(k/K10).

In another specific embodiment, if the random access preamble is used to distinguish each of the three items in the foregoing items, the number of random access preamble types may be obtained as follows:

For example, if the random access preamble is used to distinguish three items, it is assumed that the number of items 1 is M1, or the number of random access preamble types assigned to item 1 is M1, and the number of items 2 is M2, which is assigned to the item. 2, the number of random access preamble types is M2, the number of item 3 is M3, or the number of random access preamble types allocated to item 3 is M3, then the number of random access preamble types in the RO period at this time is The three are related or related to two or one of the three, for example, the number of random access preamble types for paging in the RO period is N=M1*M2*M3.

Optionally, in the case that the number of random access preamble types for paging in the RO period is N=M1*M2*M3, the random access preamble index associated with the i-th sub-item 1 in item 1 is :

I0+i*M2*M3~i0+(i+1)*M2*M3-1;

The random access preamble index associated with the jth sub-item 2 in item 2 is:

J0+j*M3～j0+(j+1)*M3-1;

The random access preamble index n associated with the kth sub-item 3 in item 3 is n=k0+k,

Where i0 can represent the starting index of the random access preamble, and can also represent the starting index of the random access preamble mapped to the corresponding PO, or can be undefined, that is, represents a given value, and is a constant, also It may be other values, which are not limited herein. In addition, the value of i0 may be a positive integer, or may be a zero or a negative integer;

Where, the value of j0, k0, k1, k2 may be related to the index in item 1 where item 2 is located, or may be related to the number of items 2, may be related to the number of items 3, and may also be related to the number of items 1. It may also be related to the initial index of the random access preamble used for paging the packet, or may be related to the number of random access preamble types allocated by the item 3, or the number of random access preamble types allocated by the item 2. Correlation may also be related to the number of random access preamble types allocated by item 1, for example j0=i*M2*M3+i0, where i represents the index of item 2; for example k0=i*M2*M3+j*M3 +i0.

For another example, if the total number of sub-items of item 3 is M3, the middle item of item 3 can share a random access preamble, and the number of sub-items that need to be distinguished by random access preamble in item 3 is M4. M4 ≤ M3, the number of random access preamble types for paging in the RO period is N=M1*M2*M4, wherein K4 sub-items in item 3 share a random access preamble, K4=M3/M4 It can also be K4=floor(M3/M4) or K4=ceil(M3/M4).

For another example, in the item 3, there are multiple sub-items sharing a random access preamble, and the number of co-allocated random access preamble types is M4. The random access preamble index j assigned to the i-th sub-item is j=i0+i mod M4.

Optionally, the random access preamble index associated with the i-th sub-item 1 in the item 1 is i0+i*M2*M4~i0+(i+1)*M2*M4-1, and the item 2 The random access preamble index associated with the jth sub-item 2 is j1+j*M4~j1+(j+1)*M4-1, and the random access preamble index n associated with the kth sub-item in item 3 is n= K1+floor(k/K4), where k1=i*M2*M4+j*M4+i0, for example j1=i*M2*M4+i0.

For another example, if the number of total sub-items of item 2 is M2, all sub-items in item 3 may not use random access preamble distinction, and sub-items in item 2 share a random access preamble to distinguish, then assume that the item 2 The number of sub-items used for distinguishing by the random access preamble is M5, and M5 ≤ M2, the number of random access preamble types for paging in the RO period is N=M1*M5, where the item The K5 sub-items in 2 share a random access preamble, K5=M5/M2, or K5=floor(M5/M2), or K5=ceil(M5/M2).

At this time, the random access preamble index associated with the i-th sub-item 1 in item 1 is i0+i*M5~i0+(i+1)*M5-1, and the random connection associated with the j-th sub-item in item 2 The leading index n is n=k2+floor(k/K5), where k2=i*M1+i0.

For another example, in the item 2, there are multiple sub-items sharing a random access preamble, and the number of co-allocated random access preamble types is M5. The random access preamble index j assigned to the i-th sub-item 2 is j=i0+i mod M5.

For another example, if the total number of sub-items of item 1 is M1, all sub-items in item 3 and item 2 may not use random access preamble distinction, and sub-items in item 1 share a random access preamble to distinguish, The number of random access preamble types allocated by item 1 is M6, and M6≤M1, then the number of random access preamble types for paging in the RO period or RO set is related to M1, for example, RO period or The number of random access preamble classes for paging within the RO set is N=M1. Wherein, if the number of sub-items sharing a random access preamble in item 1 is K6, then K6=M6/M1, or K6=floor(M6/M1), or K6=ceil(M6/M1).

For another example, in the item 1, there are multiple sub-items sharing a random access preamble, and the number of commonly allocated random access preamble types is N. The random access preamble index j assigned to the i-th sub-item 1 is j=i0+i mod N.

Alternatively, in the case where the random access preamble is used to distinguish the above two items, the two items may be a PO and a paging packet.

Specifically, the priority order may include two types, the first order is PO>page group; the second order is page group>PO. The first order is that PO is item 1 and the paging group is item 2. The second order is that the paging group is item 1, and the PO is item 2.

Alternatively, in the case where the random access preamble is used to distinguish the above two items, the two items may be an SS/PBCH block and a paging packet.

Specifically, the priority order may include two types, the first order is SS/PBCH block>page grouping; the second order is paging group>SS/PBCH block.

Optionally, in the case that the random access preamble is used to distinguish the two items, the two items may be an SS/PBCH block and a PO.

Specifically, the priority order may include two types, the first order is SS/PBCH block>PO; the second order is PO>SS/PBCH block.

Alternatively, in the case where the random access preamble is used to distinguish the above three items, the three items may be an SS/PBCH block, a PO, and a paging packet.

Specifically, there may be a total of six priority orders, the first order is SS/PBCH block>PO>page group, the second order is SS/PBCH block>page group>PO, and the third order is PO>SS/PBCH block>page grouping, the fourth order is PO>page group>SS/PBCH block, the fifth type is page grouping>PO>SS/PBCH block, and the sixth order is homing Call group > SS/PBCH block>PO.

For example, for the second order, item 1 is the SS/PBCH block, item 2 is the paging group, and item 3 is the PO; for the third order, item 1 is the PO, item 2 is the SS/PBCH block, and item 3 is Paging grouping. The content of each item is different for different priorities. There are SS/PBCH block packets, PO packets, and paging packet groups, which indicate that multiple SS/PBCH blocks and/or multiple POs and/or terminals within multiple paging packets may use one or one The group random access preamble performs uplink random access, and may report the beam and/or report the paging packet and/or report the PO and/or report the SS/PBCH block.

The network device may configure or fix the number of random access preamble types for paging in one RO, and allocate the number of random access preambles according to the priority order of each item, for example, the number of random access preambles is P5, and the associated item The number of random access preamble types of each sub-item of 1 is M6=g(P5, M1), and the number of random access preamble types associated with each sub-item of item 2 is M5=g(P7, M2), associated with The number of random access preamble types of each sub-item of item 3 is M4=g (P8, M3). When P7 is less than or equal to 1, item 2 and item 3 do not need to be distinguished, only all or part of item 1 is distinguished. When P8 is less than or equal to 1, item 3 does not need to be distinguished, only item 1 and all are distinguished or For part of project 2, when P9 is less than or equal to 1, only project 1 and project 2 and all or part of project 3 are distinguished.

Optionally, if the paging indication associated with one or more SS/PBCH blocks in one or more POs is associated with one RO associated with the SS/PBCH block in the corresponding RO period, then random access The preamble can distinguish between paging indications of POs associated with it within an RO.

For example, a paging indication on one PO corresponds to one RO, or a plurality of paging indications may correspond to one RO. In this case, a random access preamble may be used to distinguish paging indicators on different POs, and association is performed on an RO. The number of call timings may be N30=N28/N29, or N30=floor(N28/N29), or N30=ceil(N28/N29), in which case N30 POs need to be associated using a random access preamble or Differentiating; or a paging indication corresponding to multiple ROs, in which different ROs can associate or distinguish different paging packets, at this time, paging packets in one PO can be associated or differentiated using random access preambles. / or use different ROs for association or differentiation.

Optionally, the network device may configure a mapping relationship between the foregoing three items and the random access preamble, and send the mapping relationship to the terminal device, so that the terminal device determines the corresponding random access preamble according to the foregoing three items.

403. The terminal device sends a random access preamble to the network device at the first random access occasion in the first random access opportunity period. Correspondingly, the network device receives the random access preamble at a random access occasion in the first random access opportunity period.

It should be noted that if at least two terminal devices correspond to the same paging occasion and are in the same paging packet, the random access occasions determined by the at least two terminal devices may be the same, that is, the at least two terminal devices may Send at least two random access preambles of the same class.

Optionally, the terminal device determines a location of a paging occasion corresponding to the terminal device.

Specifically, after the network device receives the random access preamble for the paging, the network device needs to send the paging message, and may send the paging message in the RAR window, or may send the paging in other time periods. Message. The time period in which the paging message is sent in the embodiment of the present application is referred to as a paging message time window. The paging message window may also be a PDCCH supervision occasion of a paging occasion, and may also be referred to as a PDCCH detection timing of a paging occasion. The message window can be used to deliver control resource information such as PDCCH or CORESET, and/or paging message data resources, such as PDSCH, of the paging message.

Optionally, when the PDCCH of the paging message is sent, the control resource, such as the PDCCH, that is sent by the paging indicator may be overlapped. In this case, if there is no indication that the terminal device may have no way to distinguish the two, the embodiment of the present application proposes three methods. Indicate this information to distinguish between the two.

Specifically, the first method uses different paging radio network temporary indentation (P-RNTI), and the paging resource and the paging control resource respectively use different P-RNTIs to distinguish the two. The RNTI of the paging message may be a PM-RNTI, and the PM-RNTI may be one or more, and their indexes may be consecutive, for example, PM-RNTI0 to PM-RNTI0+Mp, and the number of RNTIs of the paging message indicated by Mp The RNTI of the paging indication may be a PI-RNTI, and the PI-RNTI may be one or more, and their indexes may be consecutive, for example, the RNTI of the paging indication indicated by PI-RNTI0~PI-RNTI0+Mi, Mi number.

The second method is to distinguish between the content of the PDCCH, and the PDCCH may carry information of 1 bit or multiple bits for indicating information, distinguishing between the PDCCH of the paging message and the PDCCH indicated by the paging, or may be multiplexed with other fields. For example, the field multiplexing indication of the paging packet, the index value of the RNTI of the paging indicator or the paging message may be related to the index of the SS/PBCH block, and the SS/PBCH block may be an SS/PBCH block associated with the RO. The PO may be related to the PO of the RO period, or may be related to the PO at the same time; the index of the PO may be in a one-to-one correspondence with the index of the RNTI of the paging message, or may be It is a one-to-many relationship. For example, a PO may have two RNTIs. The index of the SS/PBCH block may also have a one-to-one correspondence with the RNTI of the paging message, or may be a one-to-many relationship, such as an SS/ The PBCH block has 4 RNTIs.

The third method is to use the DMRS sequence of the PDCCH or the scrambling sequence of the PDCCH to indicate, the sequence may be different segments of the same sequence to indicate the information, or may be different sequences generated by using different initialization formulas to indicate the information. This information can be included in the initialization formula.

Optionally, when one RO is associated with a paging indication of multiple POs, or when one RO is associated with multiple SS/PBCH blocks, or multiple paging indications of multiple POs are simultaneously associated, multiple The call indication corresponds to a different SS/PBCH block, that is, the RO simultaneously associates paging indications of multiple POs and multiple SS/PBCH blocks. The paging message of multiple paging occasions may be requested on the RO, and the paging message corresponding to multiple SS/PBCH blocks may be requested on the RO, or the paging message of multiple paging occasions may be requested at the same time. The paging message corresponding to the SS/PBCH block. Here, the methods of

items

1 and 2 are also referred to as SS/PBCH block and paging occasions or paging occasions. Item 1 may refer to SS/PBCH block and paging occasions or paging occasions. Either item 2 may also refer to any one of the SS/PBCH block and the paging indication of the paging occasion or paging occasion.

Optionally, when the paging message window only distinguishes the paging occasion, the item 1 indicates the paging occasion of the paging occasion or the paging occasion. When the paging message window only distinguishes the SS/PBCH block, the item 1 indicates the SS. /PBCH block, when distinguishing both, paging time and SS/PBCH block correspond to item 1 and item 2 in priority order, such as paging occasion > SS/PBCH block, item 1 is paging occasion, item 2 is SS/PBCH block, such as paging occasion <SS/PBCH block, item 2 is the paging occasion, and item 1 is the SS/PBCH block. There may be multiple paging message windows associated with the RO, and each paging message window may correspond to one or more items 1. The paging message windows of different items 1 on one RO may be consecutively adjacent, and the paging message window durations of different items 1 on one RO may be the same.

Optionally, when a paging message window corresponds to an item 1, the location of the paging message window of the i-th item 1 associated with the RO is t0+f(i, x), and the message window simultaneously corresponds to the item. 1 and item 2, the starting position of the paging message window associated with the i-th item 1 and the j-th item 2 may be t0+f(i, j, y, z), and the position may be based on time The slot may also be subframe-based or may be based on ms. The location may be the starting position of the paging message window, the end position, or the intermediate position. When the index i or j indicates the index of the SS/PBCH, it may indicate an SS/PBCH block index associated with one RO, or may be an SS/PBCH block index associated with multiple ROs. When the index i or j indicates the index of the SS/PBCH, it may indicate an SS/PBCH block index associated with one RO, or may be an SS/PBCH block index associated with multiple ROs.

Optionally, for different sub-carrier spaces (SCS), t0 may have different values, and one representation of t0 is t ₀ *2 ^u , where u is related to the size of the SCS, for example, SCS= When 15KHz, u=0, when SCS=30KHz, u=1, when SCS=60KHz, u=2, when SCS=120KHz, u=3. t ₀ may represent a fixed constant, may also indicate the start position of the paging message window at 15 kHz, and may also indicate the start position of the ms-based paging message window. x, y, z represents the duration of the paging window, and the unit may be a time slot, a subframe, or an ms. The value of x, y, and z may be any one of 1 to 80, for example, 0.5 time slot, 1 time slot, 2 time slots, and 4 time slots. The values of x, y, and z can be fixed or configured. The value of t0 can be configured or fixed. The value of y can be related to the z value, or the value of z is related to the value of x. A related method is z=y*N4 or y=z*N4, where N4 can represent the number of items 1 or the supervision of item 1. The number of windows can also indicate the number of items 2 or the number of supervisory windows for item 2.

Optionally, when only the item 1 is distinguished, when the message window of the item 1 is transmitted in N2 frames, the item 1 in the frame can be calculated by using (t0+f(i, x)) mod N3. Position, where f(i, x) may be i*x or floor(i*x), N3 may represent the number of time slots in one frame, the number of subframes, and the paging message used to transmit the RO The number of subframes, the number of slots used to transmit the paging message of the RO. You can define f(i,j,y,z) as i*z+j*y, floor(i*z)+j*y,i*z+floor(j*y),floor(i*z+j *y), floor(floor(i*z)+j*y), floor(i*z+floor(j*y)), when the message of item 1 and/or item 2 is in N2 frames In the middle transmission, the position of the item 1 in the frame can be calculated by using (t0+f(i, j, y, z)) mod N3.

At this time, a paging message window of a plurality of item 1 or item 2 may be shared. At this time, t0 may be used to indicate the starting position of the paging message window, and item 1 or item 2 sharing a paging message window may be used. The number may be part or all of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, for example 1, 2, 4, 8 16, the number of items 1 sharing a paging message window or the number of items 2 is recorded as N, then the value of N is configurable or fixed, and a configuration method is to configure a specific value, that is, Specific values in 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16, another configuration method is to configure existing values, such as associations The number of

items

1 or 2 to the RO period is M. You can configure the value of N to any part or all of the values from 1 to M. For example, the configuration parameter is 1, M, or the configuration parameter is 1, M/ 2, M.

Optionally, when N items 1 share a paging message window, f(i, x) may be floor(i/N)*x, floor(floor(i/N)*x), floor. (i*x), any of i*x. When N items 2 share a paging message window, f(i, j, y, z) can be floor(i/N)*z+j*y, floor(floor(i/N)* z)+j*y,floor(i/N)*z+floor(j*y),floor(floor(i/N)*z+j*y),floor(floor(floor(i/N)* z)+j*y),floor(floor(i/N)*z+floor(j*y)),i*z+floor(j/N)*y,floor(i*z)+floor(j /N)*y,i*z+floor(floor(j/N)*y),floor(i*z+floor(j/N)*y),floor(floor(i*z)+floor(j /N)*y),floor(i*z+floor(floor(j/N)*y)),i*z+j*y,floor(i*z)+j*y,i*z+floor (j*y), floor(i*z+j*y), floor(floor(i*z)+j*y), floor(i*z+floor(j*y)).

Optionally, when all of the items 1 share a paging message receiving time period, the starting position is t0. When all of the

items

1 and 2 share a paging message receiving time period, the starting position is t0. When a plurality of items 1 share a paging message window, they may be distinguished by using multiple RNTIs. As described above, the multiple RNTIs may be a PM-RNTI or a PI-RNTI.

Alternatively, when multiple items 2 share one paging message window, they may be distinguished by using multiple RNTIs as described above.

Alternatively, when item 2 and item 1 share the same paging message window at the same time, multiple RNTIs may also be used to distinguish them. When using RNTI to distinguish an item (item 1 or item 2), the index of the RNTI is related to the index of the item. A related method is that the index of the RNTI of the paging message corresponding to the i-th item in the item is RNTI0+i, RNTI0 represents the value of the first RNTI of the paging message or paging indication. When using RNTI to distinguish between item 2 and item 1, the RNTI index of the i-th sub-item in item 2 and the j-th item of item 1 is RNTI0+j*N6+i, where N6 represents the item distinguished by RNTI The number of items in 2 or the number of sub-items.

Optionally, the location of the paging message may also be distinguished, and the paging message may be distinguished by using the frequency location or the temporal location of the paging message. One method of distinguishing is to control the paging message in a time-first order. The resource location or the data resource location is arranged, and the control resource or data resource of the paging message is placed in the index order of the item 1.

Optionally, a method for distinguishing is to arrange the control resource location or the data resource location of the paging message in a frequency-first order, and place the control resource or data resource of the paging message according to the index order of the item 1. The paging messages of different items 1 may be placed in frequency or in time division, that is, there are multiple paging element resource elements on one orthogonal frequency division multiplexed symbol. When distinguishing between item 2 and item 1, it is also possible to distinguish by position, as described above.

Optionally, the terminal device may determine, according to the at least one synchronization signal block and the third mapping relationship corresponding to the first random access occasion, the first random access preamble, where the third mapping relationship is at least one synchronization signal block and at least one random Access the mapping relationship of the preamble.

Optionally, in a case that the paging indication message carries at least one paging group identifier, and the terminal device belongs to the first paging packet corresponding to the at least one paging group identifier, the terminal device may further And determining, by the fourth mapping relationship and the first paging packet, the first random access preamble, where the fourth mapping relationship is a mapping relationship between at least one paging packet and at least one random access preamble.

Optionally, the fourth mapping relationship may be pre-assigned by the network device and the terminal device, or defined by a standard, or sent by the network device in advance, which is not limited in this application.

404. The network device determines at least one paging occasion according to at least one random access opportunity period or at least one random access preamble.

It should be noted that, in the at least one paging occasion, the paging occasion corresponding to the foregoing first paging occasion may be the same paging occasion as the first paging occasion, or may be the same in different DRX cycles. The paging timing of the location.

Optionally, the network device determines, according to the first mapping relationship and the at least one random access opportunity period, a paging occasion corresponding to the random access timing period of receiving the random access preamble.

Specifically, the first mapping relationship is a mapping relationship between at least one random access timing period and at least one paging occasion, so that the network device may determine, according to the first mapping relationship, a random access timing period of receiving the random access preamble. Corresponding at least one paging occasion.

Optionally, the network device determines, according to the second mapping relationship and the at least one random access preamble, the at least one paging occasion corresponding to the received at least one random access preamble.

Specifically, the second mapping relationship is a mapping relationship between the at least one random access preamble and the at least one paging occasion, so that the network device may determine, according to the received at least one random access preamble and the sixth mapping relationship, corresponding at least A paging opportunity.

Optionally, the second mapping relationship may be that the network device and the terminal device are pre-agreed or defined according to the standard, or the network device sends the second configuration information in advance, and the second mapping relationship is carried by the second configuration information. This is not limited.

Optionally, the association between the RO period in the T and the SS/PBCH block on the RO may also be a many-to-one situation. In this case, different RO periods may also be used to distinguish different paging groups.

Specifically, if the number of ROs associated with an SS/PBCH block is N18 and the number of paging packets is N19, the number of paging packets associated with one RO period is N20, and the value of N20 can be obtained through configuration. By calculation, the calculation method may be N20=N19/N18, N20=floor(N19/N18), or N20=ceil(N19/N18), and the value of N20 may be an integer or a fraction. It can also be 1.

405. The network device sends a paging message to the terminal device corresponding to the at least one paging occasion.

Therefore, in the signal transmission method of the embodiment of the present application, the network device sends a paging indication message to the multiple terminal devices, and the terminal device receives the at least one paging indication message at the first paging occasion, and according to the at least one paging occasion, Determining, by the first mapping relationship of the at least one random access occasion period, a first random access timing period corresponding to the first paging occasion, and then sending the first random access occasion in the first random access timing period The first random access preamble, the network device may determine, according to the first mapping relationship or the second mapping relationship, at least one paging occasion, and send a paging message to the terminal device corresponding to the at least one paging occasion, thereby avoiding more The terminal device sends a paging message, which saves the overhead of signal transmission.

FIG. 9 shows a schematic flow chart of another method of signal transmission in the present application.

901. The terminal device determines, according to the first mapping relationship, a supervision window, where the first mapping relationship is a mapping relationship between the at least one paging message and the at least one supervision window.

Specifically, the first mapping relationship may be a mapping relationship between the at least one paging message and the at least one supervision window, and the terminal device may determine a corresponding supervision window according to the paging message to be received. The correspondence between the paging message and the supervision window may be a correspondence between the paging message and the supervision window index, or may be a correspondence between the index of the paging message and the supervision window.

Optionally, when the paging message is detected by using the method of the supervision window, the calculation of the starting position of the SSB_TIk monitoring windows of the paging message may be based on the actual transmitted SS/PBCH block index, or may be based on possible The transmitted SS/PBCH block index may also be based on the index of the paging message supervision window, where the SSB_TIk may be any integer within 0 to 64, and the slot or subframe index of the paging message supervision window is calculated, and f(x) is defined. , SSB_TIk) is any formula of x*SSB_TIk, floor(x*SSB_TIk), x*floor(SSB_TIk/k), floor(x*floor(SSB_TIk/k)), and is associated with different SS/PBCH block To calculate the starting position of the supervisory window, you can use any of the following formulas (I+window offset+f(x,SSB_TIk))mod N,(I+f(x,SSB_TIk))mod N,I+window offset +f(x, SSB_TIk) mod N, I+f(x, SSB_TIk) mod N, where I represents the reference position of the paging message supervision window, which may be configured or fixed, as in the foregoing embodiment. The x indicates the duration of the paging message supervision window, which can be configured to supervise the window offset table. Shown is the offset of the first supervisory window in the paging message PO relative to the reference location, or the time offset of the first supervisory window of the paging message relative to the reference location plus a fixed time offset, The fixed time offset may be due to the duration of the PO, some time resources being used for the transmission of other messages, such as for uplink transmissions, which may be derived from information configured by the network device.

It should be noted that the window offset can be 0, indicating that there is no relevant information, and the I and window offset can be related to the SCS; the floor in the formula means rounding down, which may not exist, but for example, when x is a positive integer When the formula can be changed to (I + window offset + x * floor (SSB_TIk / k)) mod N, k can be configured, the value of k can be 1 or other values, when k is 1, the formula Can be I+window offset+x*SSB_TIk. The advantage of this method is that the window of the paging message is relatively concentrated, and the time of the UE detection is relatively short and easy to find. N represents the number of time slots or subframes that can be used to transmit paging messages within a system frame. It can be that all time slots of the entire frame can be used to transmit paging messages. In this case, N and intra-frame homing The number of call slots or the number of subframes is the same, and some of the time slots in the frame may also be used to transmit paging messages.

Optionally, when the UE receives the SS/PBCH block index that may be transmitted, the index may be relatively large. For example, for 60 kHz, the index of the SS/PBCH block received by the UE is 45. If the window length of one supervisory window is one time slot, then 45 time slots are required, so at least two paging frames need to be received. In order to facilitate the transmission of the paging message, the maximum number of supervised windows transmitted by the paging message in one frame may be set to K or the maximum number of sub-frames or time slots used for transmitting the paging message within one frame is N, when seeking When the SS/PBCH block index of the call message (including the candidate SS/PBCH block time index and/or the actually transmitted SS/PBCH block index) is greater than K or the number of time slots or subframes of the paging message is greater than N, Can be placed in the next frame or in adjacent M frames.

For example, when the SS/PBCH block and the paging message are TDM, the paging message can be transmitted in a different field from the SS/PBCH block or transmitted to the last actual transmission or possibly transmitted after the SS/PBCH block. . The values of K, M, and N may determine the value of K according to the period of the RMSI, the subcarrier spacing, and the duration of the RMSI supervision window, or according to the number of nBs of the paging message in the DRX cycle, or the time interval of the paging occasion. The duration of the paging window, the subcarrier spacing, determines the value of at least one of M, K, N, where the value of N may be x*K. The supervisory windows of the paging messages are continuous or known to be contiguous. The window offsets of different supervisory windows may be different. At least two adjacent window offsets may be the same. At least two adjacent window offsets are different. You can use one of the following formulas to calculate the paging message. Position of the frame: When all time slots and subframes of the entire frame can be used to transmit paging messages, the formula can be floor((I+window offset+f(x,SSB_TIk))/N), Floor((I+f(x,SSB_TIk))/N), when a slot and a subframe of a frame part can be used to transmit a paging message, the formula can be floor(f(x,SSB_TIk)/ N). The value of N or the value of K may be determined according to the value of x, or may be determined according to the semi-persistent scheduling DL-UL period T4 and the duration ratio of the uplink and the downlink. For example, when T4=10, the value of N can be 5, or 2*5, or 4*5, or 8*5.

Optionally, when the paging message is frequency-division multiplexed with the SS/PBCH block, the number of paging message groups in the DRX cycle may be related to the period of the SS/PBCH block.

For example, the terminal device may derive the number of paging message groups in the DRX cycle according to the period of the SS/PBCH block, for example, the period of the SS/PBCH block is 20 ms, and the DRX period is 32 frames, and the paging message group can be deduced. The number in the DRX cycle is 320/20=16; or the time interval of two adjacent paging messages is related to the period of the SS/PBCH block, for example the same; or the number of paging message groups in the DRX cycle can be compared with the SS The number of DRX cycles of the /PBCH block is related, for example, the same. The paging message group may represent a plurality of or one paging message associated with all SS/PBCH blocks within the field, and may also represent one or more paging messages associated with one or more SS/PBCH blocks.

The network device may indicate the location of the scheduling information of the paging message control resource information, and the network device may configure the scheduling information of the control resource information of the paging message to be transmitted in the SIB1, or configure the scheduling information of the SIB1 to be transmitted in the PBCH, and the network device also Other data can be multiplexed for transmission of the indication information. A 1-bit indication can be used to transmit between SIB1 or PBCH. The scheduling information used to indicate the paging message control resource may be transmitted in SIB1, or may be transmitted in SIB2, and may also be transmitted in SIB3. The paging resource control resource may carry paging indication information, and may also carry location information and/or modulation policy information of the paging message. The scheduling information of the control resources of the paging message can be used to configure the control resource location and/or modulation coding information of the paging message. The control resource location may be a frequency location of the control resource, a time domain location of the control resource, or a location of both. The scheduling information of the paging message may be partially transmitted in the PBCH, and partially transmitted in SIB1 and/or SIB2 and/or SIB3. For example, the bandwidth information utilizes the bandwidth information of SIB1 in the PBCH, and the time information is transmitted between SIB1 and/or SIB2 and/or SIB3. The network device may also configure the information or multiplex other information in an implicit manner. For example, when the paging message is frequency-division multiplexed with the SS/PBCH block, it may use the control resource configuration information of the SIB1 in the PBCH. When multiplexing, you can use your own configuration information to use configuration information in SIB1 and/or SIB2 and/or SIB3. The network device may use an explicit manner to indicate whether part of the scheduling information of the control resource information of the paging message is transmitted in the PBCH or in SIB1 and/or SIB2 and/or SIB3. The scheduling information of the control resource that can be configured with 1 bit or the paging message can be configured in the PBCH, SIB1, or both in the PBCH and the SIB1. The indication can be made using 2 bits. The configuration is also indicated or carried.

902. The terminal device receives a paging message in the supervision window.

In an embodiment, the network device may also distinguish different SS/PBCH blocks and/or distinguish different paging packets by different random access occasions.

Optionally, when there are multiple RO periods in two adjacent PO time intervals, the ROs in different RO periods may be used to distinguish different SS/PBCH blocks, or different paging groups may be distinguished, or SS/ may be distinguished first. The PBCH block then distinguishes between different paging packets.

For example, suppose that there are N15 RO periods in the interval between two adjacent POs, which can be used to distinguish different SS/PBCH blocks. If the number of SS/PBCH blocks associated with an RO is K1, which one can belong to the RO The RO period is used to distinguish the K1 SS/PBCH blocks, that is, the number of SS/PBCH blocks associated with one RO period may be N16, N16=K1/N15, or N16=floor(K1/N15), or N16= Ceil(K1/N15), where the value of N16 can be an integer, a fraction, or a value of 1.

When N15≥K1, K1 SS/PBCH blocks can be associated with N17 RO cycles in two adjacent PO time intervals, which can be N17 or N17, that is, N17 and K1 are the same. At this time, the SS/PBCH block and the RO period may have a one-to-one correspondence.

It should be noted that when the SS/PBCH block is in a one-to-one relationship with the RO period, for example, there are 4 RO periods in the time interval T of two adjacent POs, and each RO association in each RO period is 4 For the SS/PBCH block, the random access preamble sent by the network device receiving the terminal device in the first RO period may indicate that the terminal device is in the beam coverage area associated with the SS/PBCH block0; and the network device receives the second RO period. The random access preamble sent by the terminal device may indicate that the terminal device is on the beam coverage area associated with the SS/PBCH block 1; and so on, the network device may determine at least one beam that the terminal device can receive with high signal quality.

Optionally, the RO period index represents an RO period index in T, and the SS/PBCH block index represents an index in multiple SS/PBCH blocks associated with one RO. At this time, the index i of the SS/PBCH block associated with each RO is associated with the RO period index j of the RO period in T is j=i+j ₀ , and the value of j ₀ may be positive or negative, or may be negative. Is 0.

If the index is allocated in order, for example, the paging packet index associated with the i-th RO period may be i6+i* N20~i6+i*N20-1, and i6 may be 0 or other constant, positive integer, or negative integer. .

Alternatively, different paging packets may be distinguished using a random access preamble. When N15≤K1, K1 SS/PBCH blocks are associated with N18 RO cycles in two adjacent PO time intervals, where N15 may be equal to N18 or may not be equal, for example, N18 is less than N15. The number of SS/PBCH blocks associated with an RO period is N21. The value of N21 can be obtained through configuration or calculated. The calculation method can be N21=K1/N18 or N21=floor(K1/N18). It can also be N21=ceil(K1/N18), and the value of N21 can be an integer, a score, or a value of 1.

The SS/PBCH block index associated with the i-th RO period is i7+i*N21~i7+i*N21-1, and i7 may be 0 or other constant, positive integer, or negative integer. When the index number of j is expressed in the form of i8+i*N22~i8+i*N22-1 in the embodiment of the present application, there is another expression manner, that is, i=i9+floor(j/N22) or i= I9+ceil(j/N22) or i=i9+j/N22, the two expressions are the same meaning, i9 is related to i8, for example i8=-i9, can also be expressed as related to the i-th item 1 and j The index of item 3 of item 2 is i8+i+j*N22, which can also be expressed as i8+floor(i/K5)+j*N22 or i8+ceil(i/K5)+j*N22. Formally different, but the meaning of the expression is the same and can be used universally. At this time, different SS/PBCH blocks and paging packets can be distinguished using a random access preamble.

Optionally, the network device may further distinguish the paging paging packet and then distinguish different SS/PBCH blocks, and assume that the number of paging packets is N24, and the number of paging packets associated with one RO cycle is N23, and the value of N23 may be By configuration, N23 can be obtained by calculation. The calculation method can be N23=N24/N15, N23=floor(N24/N15), or N23=ceil(N24/N15), and the value of N23 can be an integer. , may also be a score, or may be 1, the paging packet index associated with the i-th RO period is i10+i*N23~i10+i*N23-1, i10 may be 0 or other constant, a positive integer, Or a negative integer, different paging packets can be distinguished using a random access preamble.

Optionally, when N24 is less than or equal to N15, a paging packet may be associated with N25 (N25≥1) RO cycles, and the value of N25 can be obtained through configuration, and N25 can be obtained by calculation, and the calculation method can be N25=N15. /N24, which may also be N25=floor(N15/N24) or N25=ceil(N15/N24), and the RO period index associated with the i-th paging packet is i11+i*N25~i11+i *N25-1, i11 can be 0 or other constants, positive integers, or negative integers.

Alternatively, different RO cycles can be used to distinguish between different SS/PBCH blocks. Assume that the number of SS/PBCH blocks associated with an RO is K1, and the number of associated SS/PBCH blocks associated with one RO period is N26. The value of N26 can be an integer, a fraction, or a number of 1, N26. The value can be obtained by configuration or by calculation. The calculation method can be N26=K1/N25, N26=floor(K1/N25), or N26=ceil(K1/N25).

Optionally, in the case that N25≥K1, the K1 SS/PBCH blocks may be associated with N27 RO cycles in two adjacent PO time intervals, which may be the first N27 or the latter N27. N27 can be the same as K1 or N25. In this case, the SS/PBCH block and the RO period can be in a one-to-one relationship. In this case, the SS/PBCH block and the RO period are one-to-many or many-to-one.

It should be noted that, at this time, the index i of the SS/PBCH block associated with each RO is associated with the RO period index j of the RO period in T is j=i+j0, and the value of j0 may be positive or negative. Can also be 0. The association between the RO period in T and the SS/PBCH block on one RO may also be a many-to-one situation. In this case, different RO periods may be used to distinguish different paging groups.

It should be understood that the specific examples in the embodiments of the present application are only for the purpose of understanding the embodiments of the present invention.

It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application. The implementation process constitutes any limitation.

The method of signal transmission according to an embodiment of the present application is described in detail above, and the apparatus for signal transmission of the embodiment of the present application will be described below.

FIG. 10 shows a schematic block diagram of an apparatus 1000 for signal transmission in an embodiment of the present application.

It should be understood that the apparatus 1000 for signal transmission may correspond to the terminal device in the above method embodiment, and may have any function of the terminal device in the method.

The signal transmission device 1000 includes:

The transceiver module 1010 is configured to receive a paging indication message on the first paging occasion;

The processing module 1020 is configured to determine, according to the first mapping relationship, a first random access timing period corresponding to the first paging occasion, where the first mapping relationship is a mapping between at least one paging occasion and at least one random access timing period. relationship;

The transceiver module 1010 is further configured to send a first random access preamble on a first random access occasion in the first random access opportunity period.

Optionally, the first mapping relationship is a mapping relationship between the at least one paging occasion and the at least one random access opportunity period; or the first mapping relationship is each of the at least one random access timing period a mapping relationship between a random access opportunity period and at least one paging occasion; or the first mapping relationship is a mapping relationship between each paging occasion in the at least one paging occasion and at least one random access timing period.

Optionally, the random access occasion period corresponding to the second paging occasion in the first mapping relationship is the Kth random access timing period after the random access timing period where the second paging occasion is located, where K is an integer greater than or equal to 0, the second paging occasion is any paging occasion in the first mapping relationship; or the second paging timing in the at least one paging occasion in the first mapping relationship The corresponding random access timing period is the Lth random access timing period after the preset time threshold after the second paging occasion, where L is an integer greater than or equal to 0, and the second paging occasion is the a paging occasion in the first mapping relationship; or a random access timing period corresponding to the second paging occasion in the first mapping relationship is the second paging occasion and the Nth after the second paging occasion The Qth random access timing period in a plurality of random access timing periods between paging occasions, wherein N is a positive integer, Q is an integer greater than or equal to 0, and the second paging occasion is the first Any paging occasion in a mapping relationship; The random access timing period corresponding to the second paging occasion in the first mapping relationship is the Pth random access timing period after the second paging occasion and the Jth paging occasion after the second paging occasion Where J is an integer greater than 0, P is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship.

Optionally, the random access timing period corresponding to the second paging occasion in the first mapping relationship is multiple between the second paging occasion and the first paging occasion after the second paging occasion. M consecutive random access timing periods in a random access timing period, where I is an integer greater than or equal to 0, M is a positive integer, and the second paging occasion is any one of the first mapping relationships Calling time.

Optionally, the processing module is further configured to determine the value of the M according to the number of synchronization signal blocks corresponding to the first random access occasion.

Optionally, before the sending, by the terminal device, the first random access preamble on the first random access occasion in the first random access opportunity period, the processing module 1020 is further configured to use the second mapping relationship and the The first paging occasion determines the first random access preamble, where the second mapping relationship is a mapping relationship between the at least one paging occasion and the at least one random access preamble.

Optionally, before the sending, by the terminal device, the first random access preamble on the first random access occasion in the first random access occasion period, the processing module 1020 is further configured to use the third mapping relationship and the And determining, by the at least one synchronization signal block corresponding to the first random access occasion, the first random access preamble, where the third mapping relationship is a mapping relationship between the at least one synchronization signal block and the at least one random access preamble.

It should be understood that the third mapping relationship may be pre-agreed by the network device and the terminal device or defined according to the standard, or the network device sends the second configuration information in advance before the step 402, and the first mapping relationship is carried by the second configuration information. This application does not limit this.

Optionally, in the case that the paging indicator message carries at least one paging packet identifier, and the terminal device belongs to the first paging packet corresponding to the at least one paging packet identifier, the first device is in the first random The processing module 1020 is further configured to determine the first random access according to the fourth mapping relationship and the first paging packet, before the first random access preamble is sent on the first random access occasion in the access timing period. The preamble, the fourth mapping relationship is a mapping relationship between the at least one paging packet and the at least one random access preamble.

Optionally, the processing module 1020 is further configured to use, according to the fifth mapping relationship, before the first random access preamble is sent by the terminal device on the first random access occasion in the first random access timing period. Determining the first random access occasion, the fifth mapping relationship, wherein the fifth mapping relationship is a mapping relationship between the at least one paging indication message received by the first paging occasion and the at least one synchronization signal block, where The sixth mapping relationship is a mapping relationship between the at least one synchronization signal block and a random access occasion in a random access timing period.

Optionally, the fifth mapping relationship or the sixth mapping relationship may be pre-assigned by the network device and the terminal device, or defined by a standard, or sent by the network device in advance, which is not limited in this application.

Optionally, before the determining, by the terminal device, the first random access opportunity corresponding to the first paging occasion according to the first mapping relationship, the transceiver module 1010 is further configured to receive configuration information, where the configuration information carries the first Mapping relations.

Optionally, the transceiver module 1010 is further configured to receive second configuration information, where the second configuration information includes a number of paging packets, a number of paging occasions in a random access timing period, and a time interval of adjacent paging occasions. At least one of the number of synchronization signal blocks corresponding to the random access occasion, and the second configuration information is determined according to the number of access preamble types, wherein the number of the access preamble types is according to the paging The priority level of at least two of the packet, the random access opportunity, and the synchronization signal block are determined.

Optionally, the device 1000 for signal transmission in the embodiment of the present application may be a terminal device, or may be a chip in the terminal device.

It should be understood that the apparatus 1100 for signal transmission according to an embodiment of the present application may correspond to the terminal device in the method of signal transmission of the embodiment of FIG. 3, and the above and other management operations of the respective modules in the apparatus 1000 for signal transmission and/or The functions or functions are respectively implemented in order to implement the corresponding steps of the foregoing various methods, and are not described herein for brevity.

Optionally, if the device 1000 for signal transmission is a terminal device, the transceiver module 1020 in the embodiment of the present application may include a receiving module and a sending module, and may also be implemented by the transceiver 1110. The processing module 1010 may be implemented by the processor 1120. . As shown in FIG. 11, the apparatus 1100 for signal transmission may include a transceiver 1110, a processor 1120, and a memory 1130. The memory 1130 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 1120. The transceiver 1110 can include a radio frequency circuit. Optionally, the terminal device further includes a storage unit.

The storage unit can be, for example, a memory. When the terminal device includes a storage unit, the storage unit is configured to store a computer execution instruction, the processing unit is coupled to the storage unit, and the processing unit executes a computer execution instruction stored by the storage unit to cause the terminal device to perform the foregoing signal transmission. method.

Optionally, if the device 1000 for signal transmission is a chip in the terminal device, the chip includes a processing module 1010 and a transceiver module 1020. The transceiver module 1020 can be implemented by the transceiver 1110, and the processing module 1010 can be implemented by the processor 1120. The transceiver module can be, for example, an input/output interface, a pin or a circuit, and the like. The processing module can execute computer executed instructions stored by the storage unit. The storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the terminal, such as a read-only memory (read-only memory, ROM) or other types of static storage devices, random access memory (RAM), etc. that can store static information and instructions.

FIG. 12 is an apparatus 1200 for signal transmission in an embodiment of the present application. The signal transmission device 1200 can be the above network device.

It should be understood that the device 1200 for signal transmission may correspond to the network device in each method embodiment, and may have any function of the network device in the method.

The signal transmission device 1200 includes:

The transceiver module 1210 is configured to send a paging indication message to multiple terminal devices.

The transceiver module 1210 is further configured to receive at least one random access preamble on a random access occasion in at least one random access opportunity period;

The processing module 1220 is configured to determine, according to the at least one random access opportunity period or the at least one random access preamble, at least one paging occasion;

The transceiver module 1210 is further configured to send a paging message to the at least one terminal device, where the at least one terminal device is a terminal device corresponding to the at least one paging occasion.

Optionally, the processing module 1220 is specifically configured to:

And determining, according to the first mapping relationship and the at least one random access opportunity period, the at least one paging occasion, where the first mapping relationship is a mapping relationship between at least one random access timing period and at least one paging occasion.

Optionally, the first mapping relationship is a mapping relationship between the at least one paging occasion and the at least one random access opportunity period; or

The first mapping relationship is a mapping relationship between each random access timing period and at least one paging occasion in the at least one random access opportunity period; or

The first mapping relationship is a mapping relationship between each paging occasion in the at least one paging occasion and at least one random access timing period.

Optionally, the random access occasion period corresponding to the second paging occasion in the first mapping relationship is the Kth random access timing period after the random access timing period where the second paging occasion is located, where K is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship; or

The random access timing period corresponding to the second paging occasion in the at least one paging occasion in the first mapping relationship is the Lth random access timing period after the preset time threshold after the second paging occasion Where L is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship; or

The random access timing period corresponding to the second paging occasion in the first mapping relationship is multiple random access occasions between the second paging occasion and the Nth paging occasion after the second paging occasion a Qth random access timing period in the period, where N is a positive integer, Q is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship; or

The random access timing period corresponding to the second paging occasion in the first mapping relationship is the Pth random access timing period after the second paging occasion and the Jth paging occasion after the second paging occasion Where J is an integer greater than 0, P is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship; or

The random access timing period corresponding to the second paging occasion in the first mapping relationship is multiple random access occasions between the second paging occasion and the first paging occasion after the second paging occasion M consecutive random access timing periods in a period, where I is an integer greater than or equal to 0, M is a positive integer, and the second paging occasion is any paging occasion in the first mapping relationship.

Optionally, the processing module 1220 is further configured to determine, according to the random access preamble and the third mapping relationship, a first paging packet, where the third mapping relationship is a mapping relationship between at least one paging packet and a random access preamble. ;

The processing module 1220 is specifically configured to:

The paging message is sent to the terminal device in the first paging packet.

Optionally, the processing module 1220 is specifically configured to:

And determining, according to the at least one random access preamble and the second mapping relationship, the at least one paging occasion, where the second mapping relationship is a mapping relationship between the at least one random access preamble and the at least one paging occasion.

Optionally, the transceiver module 1210 is further configured to send the first configuration information, where the first configuration information carries the first mapping relationship.

Optionally, the processing module 1220 is specifically configured to:

Determining the number of types of access preambles according to a priority level of at least two of a paging packet, a random access occasion, and a synchronization signal block;

And determining, according to the number of the access preamble types, the second configuration information, where the number of paging packets, the number of paging occasions in a random access timing period, the time interval of adjacent paging occasions, and the randomness At least one of the number of synchronization signal blocks corresponding to the access timing;

The transceiver module 1210 is further configured to send the second configuration information.

Optionally, the apparatus 1200 for signal transmission in the embodiment of the present application may be a network device, or may be a chip in the network device.

It should be understood that the apparatus 1200 for signal transmission according to an embodiment of the present application may correspond to the network device in the method of signal transmission of the embodiment of FIG. 4, and the above and other management operations of the respective modules in the apparatus 1200 for signal transmission and/or The functions or functions are respectively implemented in order to implement the corresponding steps of the foregoing various methods, and are not described herein for brevity.

Optionally, if the signal transmission device 1200 is a network device, the transceiver module 1210 in the embodiment of the present application may include a receiving module and a sending module, and may also be implemented by the transceiver 1310. The processing module 1220 may be implemented by the processor 1320. . As shown in FIG. 13, device 1350 can include a transceiver 1310, a processor 1320, and a memory 1330. The memory 1330 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 1320. The transceiver may include a radio frequency circuit, and optionally, the network device further includes a storage unit.

The storage unit can be, for example, a memory. When the network device includes a storage unit, the storage unit is configured to store a computer execution instruction, the processing module is coupled to the storage unit, and the processing module executes a computer execution instruction stored by the storage unit to cause the network device to perform the foregoing signal transmission. method.

Optionally, if the signal transmission device 1200 is a chip in a network device, the chip includes a processing module 1220 and a transceiver module 1210. The transceiver module 1210 can be, for example, an input/output interface on a chip, a pin or a circuit, and the like. Processing module 1220 can execute computer executed instructions stored by the storage unit.

Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the terminal, such as a read-only memory (read) -only memory, ROM) or other types of static storage devices, random access memory (RAM), etc. that can store static information and instructions. The storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the terminal, such as a read-only memory (read-only memory, ROM) or other types of static storage devices, random access memory (RAM), etc. that can store static information and instructions.

It should be understood that the processor 1120 or processor 1320 can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. The above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.

It can be understood that the memory 1230 or the memory 1330 in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory. The volatile memory can be a random access memory (RAM) that 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 (Synchronous DRAM). SDRAM), double data rate synchronous SDRAM (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronously connected dynamic random access memory (synchronous link DRAM) SLDRAM) and direct memory bus random access memory (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to comprise, without being limited to, these and any other suitable types of memory.

FIG. 14 shows a communication system 1400 of an embodiment of the present application, the communication system 1400 comprising:

The apparatus 1000 for signal transmission in the embodiment shown in FIG. 10 and the apparatus 1200 for signal transmission in the embodiment shown in FIG.

The embodiment of the present application further provides a computer storage medium, which can store program instructions for indicating any of the above methods.

Optionally, the storage medium may be specifically a storage 1130 or 1330.

The embodiment of the present application further provides a chip system, including a processor, for supporting a distributed unit, a centralized unit, and a terminal device and a network device to implement functions involved in the foregoing embodiments, for example, for example, Generate or process data and/or information involved in the above methods.

In a possible design, the chip system further comprises a memory for storing distributed units, centralized units, and program instructions and data necessary for the terminal device and the network device. The chip system can be composed of chips, and can also include chips and other discrete devices.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection 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 solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, 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 of the 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 separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of the claims.

Claims

A method for signal transmission, comprising:

Receiving, by the terminal device, a paging indication message on the first paging occasion;

Determining, by the terminal device, a first random access timing period corresponding to the first paging occasion according to the first mapping relationship, where the first mapping relationship is mapping between at least one paging occasion and at least one random access timing period relationship;

The terminal device sends a first random access preamble on a first random access occasion in the first random access opportunity period.
The method according to claim 1, wherein the first mapping relationship is a mapping relationship between the at least one paging occasion and the at least one random access opportunity period; or

The first mapping relationship is a mapping relationship between each random access timing period and at least one paging occasion in the at least one random access timing period; or

The first mapping relationship is a mapping relationship between each paging occasion in the at least one paging occasion and at least one random access timing period.
The method according to claim 1 or 2, wherein the random access timing period corresponding to the second paging occasion in the first mapping relationship is a random access timing period in which the second paging occasion is located a subsequent Kth random access opportunity period, where K is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship; or

The random access timing period corresponding to the second paging occasion in the at least one paging occasion in the first mapping relationship is the Lth random connection after the preset time threshold after the second paging occasion Entering an opportunity period, where L is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship; or

The random access timing period corresponding to the second paging occasion in the first mapping relationship is a plurality of random times between the second paging occasion and the Nth paging occasion after the second paging occasion The Qth random access timing period in the access timing period, where N is a positive integer, Q is an integer greater than or equal to 0, and the second paging occasion is any one of the first mapping relationships. Calling time; or

The random access occasion period corresponding to the second paging occasion in the first mapping relationship is the Pth random access after the second paging occasion and the Jth paging occasion after the second paging occasion a timing period, where J is an integer greater than 0, P is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship.
The method according to claim 1 or 2, wherein the random access timing period corresponding to the second paging occasion in the first mapping relationship is the second paging occasion and the second paging M consecutive random access timing periods in a plurality of random access timing periods between the first paging occasions after the timing, where I is an integer greater than or equal to 0, and M is a positive integer, said The two paging occasions are any paging occasions in the first mapping relationship.
The method of claim 4, wherein the method further comprises:

The terminal device determines the value of the M according to the number of synchronization signal blocks corresponding to the first random access occasion.
The method according to any one of claims 1 to 5, wherein the terminal device transmits a first random access preamble on a first random access occasion in the first random access opportunity period Previously, the method further includes:

Determining, by the terminal device, the first random access preamble according to the second mapping relationship and the first paging occasion, where the second mapping relationship is the at least one paging occasion and the at least one random access preamble Mapping relations.
The method according to any one of claims 1 to 5, wherein the terminal device transmits a first random access preamble on a first random access occasion in the first random access opportunity period Previously, the method further includes:

Determining, by the terminal device, the first random access preamble according to the third mapping relationship and the at least one synchronization signal block corresponding to the first random access occasion, where the third mapping relationship is at least one synchronization signal block and at least A mapping relationship of random access preambles.
The method according to any one of claims 1 to 5, wherein the paging indication message carries at least one paging packet identifier, and the terminal device belongs to the at least one paging packet identifier In the case of the first paging packet, the method further includes: before the terminal device sends the first random access preamble on the first random access occasion in the first random access opportunity period, the method further includes:

Determining, by the terminal device, the first random access preamble according to the fourth mapping relationship and the first paging group, where the fourth mapping relationship is a mapping relationship between at least one paging packet and at least one random access preamble .
The method according to any one of claims 1 to 8, wherein the terminal device transmits a first random access preamble on a first random access occasion in the first random access opportunity period Previously, the method further includes:

Determining, by the terminal device, the first random access occasion according to the fifth mapping relationship, the sixth mapping relationship, and the paging indication message, where the fifth mapping relationship is at least one received by the first paging occasion And a mapping relationship between the paging indication message and the at least one synchronization signal block, where the sixth mapping relationship is a mapping relationship between the at least one synchronization signal block and a random access occasion in a random access timing period.
The method according to any one of claims 1 to 9, wherein the method further comprises:

The terminal device receives the second configuration information, where the second configuration information includes the number of paging packets, the number of paging occasions in a random access timing period, the time interval of the adjacent paging occasion, and the random access timing. At least one of the number of synchronization signal blocks, and the second configuration information is determined according to the number of access preamble types, wherein the number of the access preamble types is based on paging packets, random access The priority level of at least two of the timing and synchronization signal blocks is determined.
A method for signal transmission, comprising:

The network device sends a paging indication message;

The network device receives at least one random access preamble on a random access occasion in at least one random access opportunity period;

Determining, by the network device, at least one paging occasion according to the at least one random access opportunity period or the at least one random access preamble;

The network device sends a paging message to the at least one terminal device, where the at least one terminal device is the terminal device corresponding to the at least one paging occasion.
The method according to claim 11, wherein the determining, by the network device, the at least one paging occasion according to the at least one random access opportunity period comprises:

Determining, by the network device, the at least one paging occasion according to the first mapping relationship and the at least one random access timing period, where the first mapping relationship is at least one random access timing period and at least one paging occasion Mapping relations.
The method according to claim 11 or 12, wherein the first mapping relationship is a mapping relationship between the at least one paging occasion and the at least one random access opportunity period; or

The first mapping relationship is a mapping relationship between each random access timing period and at least one paging occasion in the at least one random access timing period; or

The first mapping relationship is a mapping relationship between each paging occasion in the at least one paging occasion and at least one random access timing period.
The method according to any one of claims 11 to 13, wherein the random access timing period corresponding to the second paging occasion in the first mapping relationship is random at the second paging occasion a Kth random access timing period after the access timing period, where K is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship; or

The random access timing period corresponding to the second paging occasion in the at least one paging occasion in the first mapping relationship is the Lth random connection after the preset time threshold after the second paging occasion Entering an opportunity period, where L is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship; or

The random access timing period corresponding to the second paging occasion in the first mapping relationship is a plurality of random times between the second paging occasion and the Nth paging occasion after the second paging occasion The Qth random access timing period in the access timing period, where N is a positive integer, Q is an integer greater than or equal to 0, and the second paging occasion is any one of the first mapping relationships Paging opportunity; or

The random access occasion period corresponding to the second paging occasion in the first mapping relationship is the Pth random access after the second paging occasion and the Jth paging occasion after the second paging occasion a timing period, where J is an integer greater than 0, P is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship; or

The random access timing period corresponding to the second paging occasion in the first mapping relationship is a plurality of random times between the second paging occasion and the first paging occasion after the second paging occasion M consecutive random access timing periods in the access timing period, where I is an integer greater than or equal to 0, M is a positive integer, and the second paging occasion is any one of the first mapping relationships Paging opportunity.
The method according to claim 11, wherein the determining, by the network device, the at least one paging occasion according to the at least one random access preamble comprises:

Determining, by the network device, the at least one paging occasion according to the at least one random access preamble and the second mapping relationship, where the second mapping relationship is at least one random access preamble and at least one paging occasion Mapping relations.
The method according to any one of claims 11 to 15, wherein before the sending, by the network device, the paging indication message to a plurality of terminal devices, the method further comprises:

The network device sends the second configuration information, where the second configuration information includes the number of paging packets, the number of paging occasions in a random access timing period, the time interval of the adjacent paging occasion, and the random access timing. At least one of the number of synchronization signal blocks, and the second configuration information is determined according to the number of access preamble types, the number of the access preamble types being according to a paging packet, a random access opportunity, The priority level of at least two of the sync signal blocks is determined.
A device for signal transmission, comprising:

a transceiver module, configured to receive a paging indication message on the first paging occasion;

a processing module, configured to determine, according to the first mapping relationship, a first random access timing period corresponding to the first paging occasion, where the first mapping relationship is at least one paging occasion and at least one random access timing period Mapping relations;

The transceiver module is further configured to send a first random access preamble on a first random access occasion in the first random access opportunity period.
The apparatus according to claim 17, wherein the first mapping relationship is a mapping relationship between the at least one paging occasion and the at least one random access opportunity period; or

The first mapping relationship is a mapping relationship between each random access timing period and at least one paging occasion in the at least one random access timing period; or

The first mapping relationship is a mapping relationship between each paging occasion in the at least one paging occasion and at least one random access timing period.
The apparatus according to claim 17 or 18, wherein the random access timing period corresponding to the second paging occasion in the first mapping relationship is a random access timing period in which the second paging occasion is located a subsequent Kth random access opportunity period, where K is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship; or

The random access timing period corresponding to the second paging occasion in the at least one paging occasion in the first mapping relationship is the Lth random connection after the preset time threshold after the second paging occasion Entering an opportunity period, where L is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship; or

The random access timing period corresponding to the second paging occasion in the first mapping relationship is a plurality of random times between the second paging occasion and the Nth paging occasion after the second paging occasion The Qth random access timing period in the access timing period, where N is a positive integer, Q is an integer greater than or equal to 0, and the second paging occasion is any one of the first mapping relationships. Calling time; or

The random access occasion period corresponding to the second paging occasion in the first mapping relationship is the Pth random access after the second paging occasion and the Jth paging occasion after the second paging occasion a timing period, where J is an integer greater than 0, P is an integer greater than or equal to 0, and the second paging occasion is any paging occasion in the first mapping relationship.
The apparatus according to claim 17 or 18, wherein the random access timing period corresponding to the second paging occasion in the first mapping relationship is the second paging occasion and the second paging M consecutive random access timing periods in a plurality of random access timing periods between the first paging occasions after the timing, where I is an integer greater than or equal to 0, and M is a positive integer, said The two paging occasions are any paging occasions in the first mapping relationship.
The apparatus according to claim 20, wherein the processing module is further configured to determine the value of the M according to the number of synchronization signal blocks corresponding to the first random access occasion.
The apparatus according to any one of claims 17 to 21, wherein the terminal device transmits a first random access preamble on a first random access occasion in the first random access timing period The processing module is further configured to determine the first random access preamble according to the second mapping relationship and the first paging occasion, where the second mapping relationship is the at least one paging occasion and at least A mapping relationship of random access preambles.
The apparatus according to any one of claims 17 to 21, wherein the terminal device transmits a first random access preamble on a first random access occasion in the first random access timing period The processing module is further configured to determine the first random access preamble according to the third mapping relationship and the at least one synchronization signal block corresponding to the first random access occasion, where the third mapping relationship is at least A mapping relationship between a synchronization signal block and at least one random access preamble.
The device according to any one of claims 17 to 23, wherein the transceiver module is further configured to receive second configuration information, where the second configuration information includes a number of paging packets, a random access occasion At least one of a number of paging occasions in a period, a time interval of an adjacent paging occasion, and a number of synchronization signal blocks corresponding to a random access occasion, and the second configuration information is based on the number of access preamble types Determining, wherein the number of the access preamble categories is determined according to a priority level of at least two of a paging packet, a random access occasion, and a synchronization signal block.
A device for signal transmission, comprising:

a transceiver module, configured to send a paging indication message to multiple terminal devices;

The transceiver module is further configured to receive at least one random access preamble on a random access occasion in at least one random access opportunity period;

a processing module, configured to determine, according to the at least one random access opportunity period or the at least one random access preamble, at least one paging occasion, where the second mapping relationship is at least one random access preamble and at least one paging Timing mapping relationship;

The transceiver module is further configured to send a paging message to the at least one terminal device, where the at least one terminal device is a terminal device corresponding to the at least one paging occasion.
The device according to claim 25, wherein the processing module is specifically configured to:

Determining, according to the first mapping relationship and the at least one random access opportunity period, the at least one paging occasion, where the first mapping relationship is a mapping relationship between at least one random access timing period and at least one paging occasion .
The device according to claim 25, wherein the processing module is specifically configured to:

Determining, according to the at least one random access preamble and the second mapping relationship, the at least one paging occasion, where the second mapping relationship is a mapping relationship between at least one random access preamble and at least one paging occasion.
The device according to any one of claims 25 to 27, wherein the processing module is specifically configured to:

Sending the second configuration information, where the second configuration information includes the number of paging packets, the number of paging occasions in a random access timing period, the time interval of the adjacent paging occasion, and the synchronization signal block corresponding to the random access timing. At least one of the number, and the second configuration information is determined according to the number of access preamble types, the number of the access preamble types being according to a paging packet, a random access occasion, and a synchronization signal block The priority level of at least two of them is determined.
A computer readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 16.
A computer program product, when run on a computer, causes the computer to perform the method of any one of claims 1 to 16.