CN117015059A

CN117015059A - Communication method, device, chip and module equipment

Info

Publication number: CN117015059A
Application number: CN202210469067.4A
Authority: CN
Inventors: 雷珍珠; 周化雨
Original assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Current assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-11-07
Also published as: WO2023208098A1

Abstract

The application discloses a communication method, a device, a chip and a module device, and relates to the technical field of communication, wherein the method comprises the following steps: and sending indication information for indicating one or more second carriers to the terminal through the first carrier, and sending the paging message only on the second carrier indicated by the indication information. Wherein the coverage area of the second carrier is within the coverage area of the first carrier. By adopting the method described by the application, the energy consumption of the network equipment can be reduced, thereby improving the energy efficiency of the network equipment.

Description

Communication method, device, chip and module equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communications method, apparatus, chip, and module device.

Background

With the further evolution of the fifth generation mobile communication (5 th-generation, 5G) technology, the improvement of network energy efficiency is a current hot topic. The energy consumption of the base station is higher in the network energy consumption, and the network energy efficiency can be improved by reducing the energy consumption of the base station.

The power consumption of a base station can be generally divided into two parts, wherein one part is dynamic power consumption, and the dynamic power consumption changes along with the change of the service and the data volume of a terminal, such as data transmission and the like. Part of the static energy consumption (no matter how large the network is loaded, the part of the energy consumption is needed to be consumed by the base station at present) mainly comprises static receiving energy consumption and static sending energy consumption, wherein the static receiving energy consumption mainly comprises message 1 (Msg 1) of random access received by the network on configured random access resources, and the static sending energy consumption mainly comprises sending of synchronous signal blocks (synchronization signal and PBCH block, SSB), paging sending, sending of system information blocks (system information block, SIB) and the like. How to optimize the static energy consumption of the base station is one of the effective ways to improve the energy efficiency of the base station, and is a problem to be solved by those skilled in the art.

Disclosure of Invention

The application provides a communication method, a device, a chip and a module device, which can reduce the energy consumption of network equipment, thereby improving the energy efficiency of the network equipment.

In a first aspect, the present application provides a method of communication, the method comprising: transmitting indication information to a terminal through a first carrier, wherein the indication information is used for indicating one or more second carriers, and the coverage area of the second carriers is within the coverage area of the first carrier; and sending the paging message only on the second carrier indicated by the indication information. By the method, the network equipment does not need to send the paging message on all the second carriers, so that the energy consumption of the network equipment can be reduced, and the energy efficiency of the network equipment is improved.

With reference to the first aspect, in a possible implementation manner, the indication information is used to indicate N second carrier groups, where the N second carrier groups include the one or more second carriers, and N is an integer greater than 0.

With reference to the first aspect, in a possible implementation manner, the method further includes: and transmitting system information through the first carrier, wherein the system information comprises grouping information of the second carriers, the grouping information is used for indicating the second carriers contained in M second carrier groups, the N second carrier groups belong to the M second carrier groups, and M is an integer greater than or equal to N.

With reference to the first aspect, in a possible implementation manner, the indication information includes a plurality of fields, one field corresponds to one or more second carrier groups of the M second carrier groups, and one field is used to indicate whether the corresponding second carrier group supports paging.

With reference to the first aspect, in a possible implementation manner, the packet information further includes a correspondence between the plurality of fields and the M second carrier groups.

With reference to the first aspect, in a possible implementation manner, the indication information includes an identification of the N second carrier groups.

With reference to the first aspect, in a possible implementation manner, the grouping information further includes an identification of the M second carrier groups.

With reference to the first aspect, in one possible implementation manner, the indication information is carried in one or more of the following messages: the paging advance indication PEI, paging Downlink Control Information (DCI), paging message (paging message) and paging message.

In a second aspect, the present application provides a communication method, the method comprising: receiving indication information from network equipment through a first carrier, wherein the indication information is used for indicating one or more second carriers, and the coverage area of the second carriers is within the coverage area of the first carrier; and receiving the paging message only on the second carrier indicated by the indication information.

With reference to the second aspect, in a possible implementation manner, the indication information is used to indicate N second carrier groups, where the N second carrier groups include the one or more second carriers, and N is an integer greater than 0.

With reference to the second aspect, in a possible implementation manner, the method further includes:

and receiving system information from the network equipment through the first carrier, wherein the system information comprises grouping information of the second carriers, the grouping information is used for indicating second carriers contained in M second carrier groups, the N second carrier groups belong to the M second carrier groups, and M is an integer greater than or equal to N.

With reference to the second aspect, in one possible implementation manner, the indication information includes a plurality of fields, one of the fields corresponds to one or more second carrier groups of the M second carrier groups, and one of the fields is used to indicate whether the corresponding second carrier group supports paging.

With reference to the second aspect, in a possible implementation manner, the packet information further includes a correspondence between the plurality of fields and the M second carrier groups.

With reference to the second aspect, in a possible implementation manner, the indication information includes an identification of the N second carrier groups.

With reference to the second aspect, in a possible implementation manner, the grouping information further includes an identification of the M second carrier groups.

With reference to the second aspect, in a possible implementation manner, the receiving the paging message only on the second carrier indicated by the indication information includes: receiving the paging message only on a second carrier indicated by the indication information and meeting a cell residence condition; wherein, the signal quality of the reference signal on the second carrier wave meeting the residence condition of the cell is higher than a preset threshold value; the method further comprises the steps of: and if the second carrier wave meeting the residence condition of the cell does not exist in the second carrier wave indicated by the indication information, receiving the paging message through the first carrier wave.

With reference to the second aspect, in a possible implementation manner, the indication information is carried in one or more of the following messages: the paging advance indication PEI, paging Downlink Control Information (DCI), paging message (paging message) and paging message.

In a third aspect, the present application provides a communication method, the method comprising: transmitting indication information to a terminal through a first carrier, wherein the indication information is used for indicating whether random access is supported on a second carrier, and the coverage area of the second carrier is within the coverage area of the first carrier; in case the indication information indicates that random access is supported on the second carrier, message 1 is received only on the second carrier supporting the initiation of random access. By the method, under the condition that the indication information is used for indicating that random access is not supported on all second carriers, network equipment does not need to detect the Msg1 sent by the terminal on RO resources configured by the second carriers; under the condition that the indication information is used for indicating one or more second carriers supporting random access, the network equipment does not need to detect the Msg1 sent by the terminal on RO resources configured by all the second carriers, so that the energy consumption of the network equipment can be reduced, and the energy efficiency of the network equipment is further improved.

With reference to the third aspect, in a possible implementation manner, in a case where the indication information indicates that random access is supported on the second carrier, the indication information is further used to indicate N second carrier groups to which the second carrier supporting random access belongs, where N is an integer greater than 0.

With reference to the third aspect, in one possible implementation manner, the method further includes: and transmitting system information through the first carrier, wherein the system information comprises grouping information of the second carriers, the grouping information is used for indicating the second carriers contained in M second carrier groups, the N second carrier groups belong to the M second carrier groups, and M is an integer greater than or equal to N.

With reference to the third aspect, in one possible implementation manner, the indication information includes a plurality of fields, one of the fields corresponds to one or more second carrier groups of the M second carrier groups, and one of the fields is used to indicate whether the corresponding second carrier group supports random access.

With reference to the third aspect, in a possible implementation manner, the packet information further includes a correspondence between the plurality of fields and the M second carrier groups.

With reference to the third aspect, in a possible implementation manner, the indication information includes identification indication information of the N second carrier groups.

With reference to the third aspect, in a possible implementation manner, the grouping information further includes an identification of the M second carrier groups.

With reference to the third aspect, in one possible implementation manner, the indication information is carried in one or more of the following messages: the paging advance indication PEI, paging Downlink Control Information (DCI), paging message (paging message) and paging message.

In a fourth aspect, the present application provides a communication method, the method comprising: receiving indication information from network equipment through a first carrier, wherein the indication information is used for indicating whether random access is supported to be initiated on a second carrier, and the coverage area of the second carrier is within the coverage area of the first carrier; in case the indication information indicates that random access is supported on the second carrier, message 1 is sent only on the second carrier supporting the initiation of random access.

With reference to the fourth aspect, in a possible implementation manner, in a case where the indication information indicates that random access is supported on the second carrier, message 1 is sent only on the second carrier that supports the initiation of random access: in the case that the indication information indicates that the random access is supported to be initiated on the second carrier, sending a message 1 only on the second carrier which supports the random access and meets the cell residence condition; wherein, the signal quality of the reference signal on the second carrier wave meeting the residence condition of the cell is higher than a preset threshold value; the method further comprises the steps of: and if the second carrier meeting the residence condition of the cell does not exist in the second carrier supporting the random access indicated by the indication information, sending a paging message through the first carrier.

With reference to the fourth aspect, in a possible implementation manner, in a case where the indication information indicates that random access is supported on the second carrier and indicates that the indication information initiates random access on the second carrier, the indication information is further used to indicate N second carrier groups to which the second carrier supporting random access belongs, where N is an integer greater than 0.

With reference to the fourth aspect, in a possible implementation manner, the method further includes: and receiving system information from the network equipment through the first carrier, wherein the system information comprises grouping information of the second carriers, the grouping information is used for indicating second carriers contained in M second carrier groups, the N second carrier groups belong to the M second carrier groups, and M is an integer greater than or equal to N.

With reference to the fourth aspect, in a possible implementation manner, the indication information includes a plurality of fields, one of the fields corresponds to one or more second carrier groups of the M second carrier groups, and one of the fields is used to indicate whether the corresponding second carrier group supports random access.

With reference to the fourth aspect, in a possible implementation manner, the packet information further includes a correspondence between the plurality of fields and the M second carrier groups.

With reference to the fourth aspect, in a possible implementation manner, the indication information includes an identification of the N second carrier groups.

With reference to the fourth aspect, in a possible implementation manner, the grouping information further includes an identification of the M second carrier groups.

With reference to the fourth aspect, in a possible implementation manner, the indication information is carried in one or more of the following messages: the paging advance indication PEI, paging Downlink Control Information (DCI), paging message (paging message) and paging message.

In a fifth aspect, the present application provides a communication device comprising means for implementing the method in the first aspect and any of its possible implementations, or means for implementing the method in the second aspect and any of its possible implementations, or means for implementing the method in the third aspect and any of its possible implementations, or means for implementing the method in the fourth aspect and any of its possible implementations.

In a sixth aspect, the present application provides a communication device comprising a processor and a memory; the memory is used for storing a computer program; the processor is configured to invoke the computer program from the memory, to cause the communication device to perform the method as in the first aspect and any of its possible implementations, or to perform the method as in the second aspect and any of its possible implementations, or to perform the method as in the third aspect and any of its possible implementations, or to perform the method as in the fourth aspect and any of its possible implementations.

In a seventh aspect, the present application provides a communication apparatus comprising: logic circuits and interfaces; the logic circuit is coupled with the interface; the interface is for inputting and/or outputting code instructions, the logic circuitry is for executing the code instructions to cause the method of the first aspect and any of its possible implementations to be performed, or to cause the method of the second aspect and any of its possible implementations to be performed, or to cause the method of the third aspect and any of its possible implementations to be performed, or to cause the method of the fourth aspect and any of its possible implementations to be performed.

In an eighth aspect, the present application provides a module apparatus, the module apparatus including a communication module, a power module, a storage module, and a chip module, wherein: the power supply module is used for providing electric energy for the module equipment; the storage module is used for storing data and instructions; the communication module is used for carrying out internal communication of module equipment or carrying out communication between the module equipment and external equipment; the chip module is for performing the method as in the first aspect and any of its possible implementations, or for performing the method as in the second aspect and any of its possible implementations, or for performing the method as in the third aspect and any of its possible implementations, or for performing the method as in the fourth aspect and any of its possible implementations.

In a ninth aspect, the present application provides a computer readable storage medium having stored therein computer readable instructions which, when run on a computer, cause the computer to perform a method as in the first aspect and any one of the possible implementations thereof, or to perform a method as in the second aspect and any one of the possible implementations thereof, or to perform a method as in the third aspect and any one of the possible implementations thereof, or to perform a method as in the fourth aspect and any one of the possible implementations thereof.

In a tenth aspect, the application provides a computer program or computer program product comprising code or instructions which, when run on a computer, cause the computer to perform the method as in the first aspect and any of its possible implementations, or to perform the method as in the second aspect and any of its possible implementations, or to perform the method as in the third aspect and any of its possible implementations, or to perform the method as in the fourth aspect and any of its possible implementations.

An eleventh aspect, the present application provides a communication system comprising a network device for performing the method of the first aspect or any of the possible implementation manners of the first aspect, and a terminal for performing the method of the second aspect or any of the possible implementation manners of the second aspect; or, the network device is configured to perform the method in any one of the possible implementation manners of the third aspect or the first aspect, and the terminal is configured to perform the method in any one of the possible implementation manners of the fourth aspect or the fourth aspect.

By the method of the embodiment of the application, the network equipment only sends the paging message on the second carrier waves indicated by the indication information, and the paging message is not necessarily sent on all the second carrier waves, so that the energy consumption of the network equipment can be reduced, and the energy efficiency of the network equipment is improved.

Drawings

Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a paging occasion provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of PEI and PO according to an embodiment of the present application;

fig. 4 is a schematic flow chart of a random access according to an embodiment of the present application;

FIG. 5 is a flow chart of a communication method provided by an embodiment of the present application;

FIG. 6 is a flow chart of yet another communication method provided by an embodiment of the present application;

fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a further communication device according to an embodiment of the present application;

fig. 9 is a schematic structural view of a further communication device according to an embodiment of the present application;

fig. 10 is a schematic structural view of still another communication device according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a chip according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a module device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terminology used in the following embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates to the contrary. It should also be understood that the term "and/or" as used in this disclosure refers to and encompasses any or all possible combinations of one or more of the listed items.

It should be noted that the terms "first," "second," "third," and the like in the description and claims of the present application and in the following drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the order of use may be interchanged under appropriate circumstances such that the embodiments of the application described herein may be practiced otherwise than as illustrated or described. Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.

The embodiment of the present application may be applied to the network architecture shown in fig. 1, where the network architecture shown in fig. 1 is a network architecture of a wireless communication system, and the network architecture generally includes a terminal and a network device, and the number and the form of each device do not limit the embodiment of the present application. Three network devices (network device 1, network device 2, network device 3) and one terminal are schematically shown in fig. 1. The network device 1, the network device 2, and the network device 3 can provide communication services for the terminal. The terminal may select a cell corresponding to one of the network devices to camp on (illustrated in fig. 1 as network device 2). Among them, the network device 1 may be referred to as an anchor base station, the carrier used by the network device 1 may be referred to as an anchor carrier (anchor carrier), and the coverage thereof may be referred to as an anchor cell (non-anchor cell). The network devices 2 and 3 may be referred to as non-anchor base stations, and the carriers used by the network devices 2 and 3 may be referred to as non-anchor carriers (non-anchor carriers), and the coverage area thereof may be referred to as non-anchor cells (non-anchor cells). Alternatively, the anchor cell and the non-anchor cell may be provided by the same network device.

Anchor carriers (or cells) and non-anchor carriers (or cells) are further described below. These concepts were first proposed for the purpose of network energy conservation (network energy savings, network power saving). In a 5G network, for example, because of more spectrum resources, such as frequency bands (bands) including 1 gigahertz (GHz), 2GHz, 4GHz, 6GHz, and 26GHz, when the network load is low, carriers or cells corresponding to some frequency bands (such as 4GHz, 6GHz, or 26 GHz) may be turned off as much as possible and turned on as required, so as to achieve the purpose of network energy saving. That is, some carriers or cells do not need to carry data when the network load is low. It will be appreciated that the purpose of network power conservation may be achieved by switching on and off certain carriers, but this is typically achieved when the network load is low.

Such carriers or cells that are controlled by the network and may be opened as needed may be referred to as non-anchor carriers or non-anchor cells, or as second type carriers or second type cells, or as secondary carriers (secondary carrier) or secondary cells (scells), and in the embodiment of the present application, may also be referred to as second carriers. It should be noted that, as the communication technology evolves, such carriers or cells may also have other names. In contrast, a carrier or cell that is not turned off may be referred to as an anchor carrier or anchor cell, or as a first type carrier or first type cell, or as a primary carrier (primary carrier) or primary cell (PCell), and in the embodiment of the present application, is also referred to as a first carrier. It should be noted that, as the communication technology evolves, such carriers or cells may also have other names.

Generally, the coverage of a non-anchor carrier (or cell) is within the coverage of an anchor carrier (or cell). Anchor carriers provide a wide range of coverage, while non-anchor carriers have a smaller coverage and provide high-speed data transmission services. Currently there is still a need for non-anchor carriers or cells to transmit measurement reference signals to support access and mobility of terminals.

In the embodiment of the present application, the network device 1 corresponding to the anchor cell (or referred to as the first carrier) shown in fig. 1 may be used as a control device in the network architecture, and generate and send the indication information in the embodiment of the present application, where the indication information is used to indicate a paging or random access related policy. For different situations, the network device 1 may send the indication information to the network device 2 and the network device 3 corresponding to the terminal and/or the non-anchor cell (or referred to as the second carrier). See in particular the detailed description below.

In a possible implementation manner, there may be a centralized control device (also a network device) in the network architecture shown in fig. 1, where the centralized control device may be used as a control device in the network architecture to generate and send the indication information in the embodiment of the present application, where the indication information is used to indicate a paging or random access related policy. For different situations, the centralized control device may communicate with the network device 1 to transmit the indication information in the embodiment of the present application to the network device 1, and then the network device 1 sends the indication information to the network device 2 and the network device 3 corresponding to the terminal and/or the non-anchor cell. The centralized control device may also communicate with all network devices (network device 1, network device 2, and network device 3) within control range to transmit the indication information. See in particular the detailed description below.

It should be noted that, the wireless communication system mentioned in the embodiments of the present application includes, but is not limited to: an internet of things system (internet of things, ioT), a long term evolution system (long term evolution, LTE), a 5G system, a New Radio (NR) system, a sixth generation mobile communication (6 th-generation, 6G) system, and a future mobile communication system.

A terminal according to an embodiment of the present application is a device having a wireless communication function, and may be referred to as a terminal (terminal), a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), an access terminal device, a vehicle-mounted terminal device, an industrial control terminal device, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus. In the following description, the name of the terminal will be described as an example.

The terminal may be fixed or mobile. It should be noted that the terminal may support at least one wireless communication technology, such as LTE, NR, etc. For example, the terminal may be a mobile phone, tablet, desktop, notebook, all-in-one, in-vehicle, virtual Reality (VR) terminal device, augmented reality (augmented reality, AR) terminal device, wireless terminal in industrial control (industrial control), wireless terminal in unmanned (self-driving), wireless terminal in tele-surgery (remote medical surgery), wireless terminal in smart grid, wireless terminal in transportation security (transportation safety), wireless terminal in smart city, wireless terminal in smart home (smart home), cellular phone, cordless phone, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication capability, computing device or other processing device connected to a wireless modem, wearable device, terminal in future mobile communication network or terminal in an evolving public mobile network (public land mobile network), etc. In some embodiments of the present application, the terminal may also be a device with transceiving functions, such as a chip system. The chip system may include a chip and may also include other discrete devices, which are not limited by the embodiment of the present application.

In the embodiment of the application, the network device is a device for providing a wireless communication function for the terminal, and may also be called a radio access network (radio access network, RAN) device, an access network element, or the like. Wherein the network device may support at least one wireless communication technology, e.g., LTE, NR, etc. By way of example, network devices include, but are not limited to: a next generation base station (gcb), evolved node B (eNB), radio network controller (radio network controller, RNC), node B (NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (e.g., home evolved node B, or home node B, HNB), baseband unit (BBU), transceiving point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center, and the like in 5G. The network device may also be a wireless controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in a cloud wireless network (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 network device in future mobile communications or a network device in a future evolved PLMN, etc. In some embodiments, the network device may also be an apparatus, such as a system-on-a-chip, having the functionality to provide wireless communication for the terminal. By way of example, the chip system may include a chip, and may also include other discrete devices. In some embodiments, the network device may also communicate with an internet protocol (Internet Protocol, IP) network, such as the internet, a private IP network, or other data network, among others.

The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided by the embodiments of the present application is applicable to similar technical problems.

Next, some concepts related to the embodiments of the present application will be described.

1. Paging (Paging)

Paging refers to the act of the network calling a terminal by sending a paging message (paging message), which may cause the terminal being paged to initiate a signaling connection establishment procedure with the network.

The case of the network sending the paging message mainly comprises: (1) Transmitting a call request to a terminal in a radio resource control IDLE (radio resource control IDLE, rrc_idle) state and a radio resource control deactivated (radio resource control INACTIVE, rrc_inactive) state; (2) Notifying the terminal in the rrc_idle/rrc_inactive state and the radio resource control CONNECTED (radio resource control CONNECTED, rrc_connected) state that system information has changed; (3) The terminal is instructed to start receiving the earthquake and tsunami warning system (earthquake and tsunami warning system, ETWS) notification and/or to start receiving the commercial mobile warning system (commercial mobile alert system, CMAS) notification.

Paging Occasions (POs) are a predefined special time slot that wakes up the terminal to listen to the physical downlink control channel (physical downlink control channel, PDCCH) to receive paging messages. In NR, the terminal may employ a discontinuous reception (discontinuous reception, DRX) reception manner in rrc_idle and rrc_inactive states in order to reduce power consumption. Specifically, the terminal periodically (the period is a DRX cycle) listens to the PDCCH associated with the PO. Exemplary, referring to fig. 2, a schematic diagram of paging occasions is provided in an embodiment of the present application.

2. Paging advance indication (paging early indication, PEI)

The PEI is used to determine whether it is necessary to monitor the PDCCH associated with the PO on the PO associated with the PEI.

In order to save power consumption of the terminal, in a DRX scenario, one or more POs associate a PEI, and before the terminal listens to the PDCCH on the PO, the terminal needs to receive the PEI to determine whether it needs to monitor the PDCCH associated with the PO on the PO associated with the PEI. Exemplary, referring to fig. 3, a schematic diagram of PEI and PO according to an embodiment of the present application is shown. Illustratively, the PEI may be downlink control information or sequence.

3. Paging downlink control information (paging DCI)

paging DCI is one type of information that may be used to indicate paging events. Specifically, the paging event may include a system information update (system information modification, SI modification) and a scheduled paging message (paging message). The Paging DCI may be used to indicate a system information update or schedule a Paging message, or to indicate a system information update and to schedule a Paging message.

4. Random Access (RA)

Referring to fig. 4, a schematic flow chart of random access is provided in an embodiment of the present application. The terminal first acquires random access resource configuration information including time-frequency resources for transmitting a random access request message, a contention random access preamble range (this preamble range may be a sequence index range of a preamble), etc., by reading the system message block 1 (System Information Block, sib1). The terminal sends a random access Msg1, also referred to as a random access request message, to the network device to initiate random access to the network. The Msg1 contains a preamble (preamble) of random access. If the network device correctly receives the Msg1, a random access message 2 (Msg 2), also referred to as a random access response message, scrambled with a random access radio network temporary identity (random access radio network temporary identifier, RA-RNTI) is sent to the terminal. After transmitting the Msg1, the terminal may monitor the Msg2 from the network device using the RA-RNTI to descramble the message. Msg2 may contain a timing offset (TA), a radio network temporary identity (temporary cell radio network temporary identifier, TC-RNTI) of the temporary cell, a power control (power control) and a resource indication of the terminal sending message 3 for random access (Mgs). The terminal then transmits Mgs a resource indication to the network device based on the transmission Mgs3. Finally, if the network device correctly receives the Msg3, the network device sends a random access message 4 (Msg 4), which may also be referred to as a contention resolution message, to the terminal to inform the completion of the initial access procedure. If the terminal does not successfully receive the Msg4, the terminal can determine that the initial access procedure fails.

In general, the terminal transmits Msg1 to the network device through a SSB-associated random access Occasion (RACH timing, RO). The terminal may acquire relevant configuration of ROs through SIB message, where the relevant configuration includes a period size of the ROs, a number of ROs in a time domain in one physical random access channel (physical random access channel, PRACH) period, a number of ROs multiplexed on a frequency (indicated by an available parameter msg 1-FDM), a number of SSBs associated with each RO (indicated by an available parameter SSB-perRACH-indication), and the like.

At this stage, since the network device does not know where the specific location of the terminal is in the rrc_idle state and the rrc_inactive state, when there is a terminal to be paged, the network device needs to send a paging message to the terminal through all the second carriers. In this way, the static transmission of the network device consumes more power. In view of this, the scheme of the application is provided, in the scheme, the network device only sends the paging message on the second carriers indicated by the indication information, and the paging message is not necessarily sent on all the second carriers, so that the static sending energy consumption of the network device can be reduced, and the energy efficiency of the network device is improved.

In combination with the above description, the following further describes the solution of the embodiment of the present application. Referring to fig. 5, a flowchart of a communication method according to an embodiment of the present application is provided. The method can be applied to the network architecture shown in fig. 1. The method comprises the following steps:

S101, the network device sends indication information to the terminal through the first carrier, where the indication information is used to indicate one or more second carriers (assuming that X second carriers are used). Correspondingly, the terminal receives the indication information from the network device through the first carrier.

Optionally, the indication information may be carried in one or more of the following messages: PEI, paging DCI, paging map.

Wherein the coverage area of the second carrier is within the coverage area of the first carrier. The second carrier may refer to the description of the non-anchor carrier in the foregoing, and the first carrier may refer to the description of the anchor carrier in the foregoing, which is not repeated herein. As can be seen from the foregoing description, the first carrier is generally not turned off, i.e. the terminal is always served, and the indication information transmitted through the first carrier is reliable.

The X second carriers indicated by the indication information are second carriers that can support paging. In the embodiment of the application, the network device can select part of the second carriers to send the paging message (namely select part of the second carriers to support paging), and then the indication information can inform the terminal which second carriers can support paging. In addition, it should be noted that, how the network device selects the second carrier that can support paging is not limited by the embodiment of the present application. In this way, the network device does not have to send paging messages on all the second carriers, and the power consumption of the network device can be reduced. In some embodiments, the indication information is used to indicate the identification of the X second carriers supporting paging (e.g., carrier Identification (ID), cell identification corresponding to the carrier, etc.).

In some embodiments, the indication information is used to indicate N second carrier groups, where the N second carrier groups support paging, one second carrier group includes one or more second carriers, and the second carriers included in the N second carrier groups are the X second carriers. N is an integer greater than 0. That is, the second carriers included in the N second carrier groups are second carriers that can support paging. In this way, the indication information does not need to indicate each second carrier capable of supporting paging one by one, and signaling overhead can be saved.

Optionally, in the embodiment of "the indication information is used to indicate the N second carrier groups", the network device needs to inform the terminal of the packet information of the second carriers, and accordingly, the terminal receives the packet information from the network device. In one implementation, the network device sends system information through the first carrier, and the terminal receives the system information from the network device. The system information includes grouping information of the second carriers, where the grouping information is used to indicate the second carriers included in the M second carrier groups, for example, the grouping information of the second carriers is used to indicate the second carrier identifier included in each of the M second carrier groups, where the N paging-supporting second carrier groups described above belong to the M second carrier groups. The M second carrier groups may be grouping results obtained by grouping the second carriers in the coverage area of the first carrier by the network device.

Illustratively, the grouping information may refer to the examples of Table 1. In the example of table 1, the second carrier set 1 includes a second carrier 1, a second carrier 2, and a second carrier 3, the second carrier set 2 includes a second carrier 4 and a second carrier 5, the second carrier set 3 includes a second carrier 6 and a second carrier 7, and the second carrier set 4 includes a second carrier 8. Optionally, in the packet information, each second carrier group and each second carrier may be indicated with its corresponding identifier.

TABLE 1

In a first indication manner, the indication information includes a plurality of fields, one field corresponding to one or more second carrier groups of the M second carrier groups, and one field is used to indicate whether the corresponding second carrier group supports paging. Wherein a field may be one or more bits. Optionally, if the value of one field is the first value, it indicates that one or more corresponding second carrier groups support paging, and if the value of one field is the second value, it indicates that one or more corresponding second carrier groups do not support paging, or vice versa. The first value and the second value may be preset.

For example, the plurality of fields may correspond to the M second carrier groups one by one in order, e.g., higher bits correspond to the first second carrier group and lower bits correspond to the second carrier group. For example, the indication manner of the indication information may refer to an example of table 2, where a value of a field corresponding to the indication information is "1100", and one field is one bit. In the example corresponding to table 2, "0" indicates that the second carrier included in the second carrier group corresponding to the field does not support paging, and "1" indicates that the second carrier included in the second carrier group corresponding to the field supports paging. In the example, the second carriers included in the second carrier group 1 and the second carrier group 2 support paging, and the second carriers included in the second carrier group 3 and the second carrier group 4 do not support paging.

TABLE 2

1	1	0	0
				Second carrier group 1	Second carrier group 2	Second carrier group 3	Second carrier group 4

For example, the plurality of fields may not be in one-to-one correspondence with the M second carrier groups, and the indication information may indicate whether each second carrier group supports paging according to a correspondence relationship between the plurality of fields and the M second carrier groups. In this embodiment, the network device needs to inform the terminal of the correspondence between the multiple fields and the M second carrier groups. Optionally, the correspondence may be included in the above-mentioned packet information, that is, the packet information further includes the correspondence between the multiple fields and the M second carrier groups, and the correspondence may also be included in other information or messages, which is not limited by the present application.

Illustratively, the correspondence between the plurality of fields and the M second carrier groups may be referred to as an example of table 3. In table 3, the first field corresponds to the second carrier group 1 and the second carrier group 2, and the second field corresponds to the second carrier group 3 and the second carrier group 4.

TABLE 3 Table 3

The manner of indication of the indication information may refer to the example of table 4 based on the correspondence relation of table 3. In the example corresponding to table 4, the value of the field corresponding to the indication information is "10", and one field corresponds to one bit. "0" indicates that the second carrier included in the second carrier group corresponding to the field does not support paging, and "1" indicates that the second carrier included in the second carrier group corresponding to the field supports paging. The meaning of the indication information is the same as that of table 2, but the content of the contained data is different. Compared with the mode of one-to-one correspondence between the field and the M second carrier groups, the method reduces the length of the field and can save the expenditure of signaling.

TABLE 4 Table 4

In a second indication manner, the indication information includes the identifiers of the N second carrier groups. In such an embodiment, the network device needs to inform the terminal of the identity of the M second carrier groups. Optionally, the grouping information further includes an identification of M second carrier groups.

Illustratively, the identification of the M second carrier groups may refer to the example of table 5. Wherein the identity of each second carrier group is represented by 2 bits.

TABLE 5

00	01	10	11
				Second carrier group 1	Second carrier group 2	Second carrier group 3	Second carrier group 4

In one example, if the indication information includes the identifier "11", it indicates that the second carrier included in the second carrier group 4 supports paging.

The terminal may determine which second carriers are paging-capable based on the indication information.

And S102, the network equipment only sends the paging message on the second carrier indicated by the indication information. Accordingly, the terminal receives the paging message only on the second carrier indicated by the indication information.

It should be noted that "only in" all the second carriers within the range of "the first carrier range" herein, that is, for all the second carriers within the first carrier range, the network device only transmits the paging message on the second carrier indicated by the indication information, and no paging message is transmitted on the other second carriers, and accordingly, the terminal only receives the paging message on the second carrier indicated by the indication information, and no paging message is received on the other second carriers. For other carriers except the first carrier and the second carrier in the application, the network equipment can still send paging messages on the carriers, and correspondingly, the terminal can still receive the paging messages on the carriers. Alternatively, the terminal may receive the paging message on the second carrier indicated by the indication information preferentially over the first carrier or other carriers. In this way, the network device does not have to send paging messages on all the second carriers, and can save its own power consumption.

Alternatively, the network device may send the reference signal only on the second carrier indicated by the indication information, and correspondingly, the terminal receives the reference signal only on the second carrier indicated by the indication information. The reference signal may be a synchronization signal block, a channel-state information-reference signal (CSI-RS), a tracking reference signal (tracking reference signal, TRS), or other newly designed reference signal, and embodiments of the present application are not limited. It should be noted that, herein, the "only" range is still "all the second carriers within the first carrier range", and for the other carriers except the first carrier and the second carrier in the present application, the network device may still send the reference signals on these carriers. In this way, the network device does not have to transmit the reference signal on all the second carriers, and can save its own power consumption.

Optionally, the network device may also send reference signals on all the second carriers to meet the requirements of other functions, due to terminal mobility considerations.

In some embodiments, the manner in which the terminal receives the paging message only on the second carrier indicated by the indication information is: the terminal receives the paging message only on the second carrier indicated by the indication information and meeting the cell residence condition. Reference is made herein to the foregoing schematic only "in" a. Wherein the signal quality of the reference signal on the second carrier satisfying the cell residence condition is higher than a preset threshold. Signal quality may also be understood as signal strength, and reference signal received power (Reference Signal Receiving Power, RSRP) may be a reference indicator of signal quality. Other reference indicators may also be present for the signal quality, as the application is not limited in this regard. The preset threshold may be specified by a protocol, or preset, or indicated by a network device, and the present application is not limited.

That is, after receiving the indication information from the network device through the first carrier, the terminal may determine which second carriers are paging-supportable based on the indication information. Then, the terminal determines whether a second carrier satisfying the cell-camping condition exists in the indicated second carriers by detecting/measuring the reference signal transmitted by the second carrier indicated by the indication information. If one or more second carriers exist to satisfy the cell-camping condition, the terminal may receive a paging message on the second carrier satisfying the cell-camping condition. If the second carrier wave meeting the cell residence condition does not exist in the second carrier wave indicated by the indication information, the terminal can receive the paging message through the first carrier wave. Alternatively, the terminal may also receive paging messages via other carriers. By the method, the success rate of the terminal for receiving the paging message can be improved, and the communication quality is ensured.

An exemplary description of the network architecture to which the method embodiment shown in fig. 5 is applied, and the manner in which information is exchanged between the devices, is provided below. Take the network architecture shown in fig. 1 as an example.

In a possible implementation manner, the network device 1, as a control device in a network architecture, generates and transmits indication information in an embodiment of the present application, where the indication information is used to indicate a paging related policy (i.e. one or more second carriers supporting paging).

Optionally, the network devices corresponding to the first carrier and the second carrier are the same network device, which is exemplified as the network device 1. In this implementation, the network device 1 may select part of the second carriers to send the paging message, and the network device 1 sends the paging message only on the second carriers indicated by the indication information, not necessarily on all the second carriers. Accordingly, the terminal receives the indication information from the network device 1 and receives the paging message only on the second carrier indicated by the indication information.

Optionally, the network devices corresponding to the first carrier and the second carrier are different network devices, and the example is that the first carrier corresponds to the network device 1, and the second carrier corresponds to the network device 2 and the network device 3. The network device 1 also sends this indication information to the network device 2 and the network device 3 corresponding to the non-anchor cell (or called second carrier) to inform the network device 2 and the network device 3 which second carriers can support paging. Accordingly, the network device 2 and the network device 3 receive the instruction information from the network device 1. In this implementation, the network device 1 may select a part of the second carriers to send the paging message, and the network device 2 and the network device 3 send the paging message only on the second carriers indicated by the indication information, and it is not necessary to send the paging message on all the second carriers. Accordingly, the terminal receives the indication information from the network device 1 and receives the paging message only on the second carrier indicated by the indication information.

In another possible implementation manner, the centralized control device, as a control device in a network architecture, generates and transmits indication information in an embodiment of the present application, where the indication information is used to indicate a paging related policy (i.e. one or more second carriers supporting paging). In this implementation, the centralized control device may select a portion of the second carrier to send the paging message.

Optionally, the network devices corresponding to the first carrier and the second carrier are the same network device, which is exemplified as the network device 1. In this implementation, the network device 1 receives the indication information sent by the centralized control device and sends the indication information to the terminal, and the network device 1 sends the paging message only on the second carriers indicated by the indication information, and does not need to send the paging message on all the second carriers. Accordingly, the terminal receives the indication information from the network device 1 and receives the paging message only on the second carrier indicated by the indication information.

Optionally, the network devices corresponding to the first carrier and the second carrier are different network devices, and the example is that the first carrier corresponds to the network device 1, and the second carrier corresponds to the network device 2 and the network device 3.

In the first case, the centralized control device may communicate only with the network device 1 corresponding to the anchor cell. Then, the network device 1 receives the indication information sent by the centralized control device, and the network device 1 sends the indication information to the network device 2 and the network device 3 corresponding to the non-anchor cell (or referred to as the second carrier) in addition to the terminal, so as to inform the network device 2 and the network device 3 of which second carriers can support paging. Accordingly, the network device 2 and the network device 3 receive the instruction information from the network device 1. In this implementation, the network device 2 and the network device 3 send paging messages only on the second carriers indicated by the indication information, and it is not necessary to send paging messages on all the second carriers. Accordingly, the terminal receives the indication information from the network device 1 and receives the paging message only on the second carrier indicated by the indication information.

In the second case, the centralized control device may communicate with all network devices (network device 1, network device 2, and network device 3) within control range. Then, the network device 1 receives the instruction information transmitted by the centralized control device and transmits the instruction information to the terminal. Accordingly, the terminal receives the indication information from the network device 1 and receives the paging message only on the second carrier indicated by the indication information. The network device 2 and the network device 3 receive the indication information sent by the centralized control device and send the paging message only on the second carriers indicated by the indication information, and it is not necessary to send the paging message on all the second carriers.

In the embodiment of the method corresponding to fig. 5, the network device sends the paging message only on the second carriers indicated by the indication information, and it is not necessary to send the paging message on all the second carriers, so that the energy consumption of the network device can be reduced.

At present, since the network device does not know where the specific location of the terminal is in the random access process, the network device needs to continuously detect the message 1 sent by the terminal on all RO resources configured by the second carrier, so as to ensure that the message 1 sent by the terminal can be received in time. In this way, the static transmission of the network device consumes more power. In view of this, the scheme of the present application is proposed, in the present scheme, in the case that the indication information is used to indicate that the initiation of random access is not supported on all the second carriers, the network device does not need to receive the message 1 sent by the terminal on the RO resource configured by the second carrier; in the case that the indication information is used for indicating one or more second carriers supporting random access, the network device receives the message 1 sent by the terminal only on the RO resource configured by the second carriers supporting random access and indicated by the indication information, so that the static receiving energy consumption of the network device can be reduced, and the energy efficiency of the network device is improved.

Referring to fig. 6, a flowchart of another communication method according to an embodiment of the present application is provided. The method can be applied to the network architecture shown in fig. 1, and comprises the following steps:

s201, the network equipment sends indication information to the terminal through a first carrier, wherein the indication information is used for indicating whether random access is supported to be initiated on a second carrier. Correspondingly, the terminal receives the indication information from the network device through the first carrier.

In some embodiments, the indication information may include a preset field, which may be used to indicate whether random access is supported on the second carrier, or a value referred to as the preset field may be used to indicate whether random access is supported on the second carrier. Optionally, if the value of the preset field is the first value, it indicates that the random access is supported on the second carrier, and if the value of the preset field is the second value, it indicates that the random access is not supported on the second carrier, otherwise, it is also possible. The first value and the second value may be preset.

Here, the meaning of support is understood as "full support" or "partial support". In a first indication manner, the indication information is used for indicating that the random access is supported to be initiated on the second carrier, and the meaning is that: supporting random access initiation on all second carriers (i.e., all second carriers within the coverage area of the first carrier); the indication information is used for indicating that the random access is not supported to be initiated on the second carrier, and has the following meaning: all the second carriers do not support initiating random access. In this embodiment, the network device may decide whether to support random access on all the second carriers, and how the network device decides whether to support random access on all the second carriers, which embodiments of the present application are not limited. Optionally, if the network device decides that random access initiation is not supported on all the second carriers, the network device does not need to detect the message 1 sent by the terminal on RO resources configured by the second carriers. Optionally, if the network device decides that random access is supported on all the second carriers, the network device needs to detect the message 1 sent by the terminal on RO resources configured by all the second carriers.

In another indication manner, the indication information is used for indicating that the random access is supported to be initiated on the second carrier, and the meaning is that: one or more second carriers exist in all the second carriers to support random access initiation; the indication information is used for indicating that the random access is not supported to be initiated on the second carrier, and has the following meaning: all the second carriers do not support initiating random access. In this embodiment, the network device may decide whether to support random access on the second carrier, and if so, on which second carriers to support random access, how the network device decides whether to support random access on the second carriers, and on which second carriers to support random access, which embodiments of the present application are not limited. Optionally, if the network device decides that random access initiation is not supported on all the second carriers, the network device does not need to detect the message 1 sent by the terminal on RO resources configured by the second carriers. Alternatively, if the network device decides to support initiation of random access on part of the second carrier (including all cases as well), the network device needs to detect the message 1 sent by the terminal on RO resources configured on this part of the second carrier.

Further, in this indication manner, the indication information may further indicate a second carrier supporting initiation of random access. In this indication manner, the indication information includes a first part field and a second part field, where the first part field may be used to indicate whether random access is supported on the second carrier, and the second part field may be used to indicate the second carrier supporting random access.

The manner in which the indication information indicates the second carrier supporting random access is further described below.

In some embodiments, the indication information includes an identification of the second carrier supporting random access (e.g., carrier Identification (ID), a cell identification corresponding to the carrier, etc.).

In some embodiments, the indication information is further used to indicate N second carrier groups to which the second carriers supporting random access belong, where N is an integer greater than 0. That is, the second carriers included in the N second carrier groups are second carriers that can support random access. Wherein one second carrier group includes one or more second carriers. In this way, the indication information does not need to indicate each second carrier supporting random access one by one, and signaling overhead can be saved.

Optionally, in the embodiment of "the indication information is further used to indicate the N second carrier groups to which the second carriers supporting random access belong", the network device needs to inform the terminal of the packet information of the second carriers, and accordingly, the terminal receives the packet information from the network device. In one implementation, the network device sends system information via the first carrier, and the terminal receives system information from the network device via the first carrier. The system information includes grouping information of the second carriers, where the grouping information is used to indicate second carriers included in M second carrier groups, for example, the grouping information of the second carriers is used to indicate second carrier identifiers included in each of the M second carrier groups, where N second carrier groups to which the aforementioned second carriers supporting random access belong. The M second carrier groups may be grouping results obtained by grouping the second carriers in the coverage area of the first carrier by the network device. For example, the grouping information may refer to the example of table 1 in the above, and will not be described herein.

In a first indication manner, the indication information includes a plurality of fields, one field corresponding to one or more second carrier groups of the M second carrier groups, and one field is used to indicate whether the corresponding second carrier group supports random access. Wherein a field may be one or more bits. Optionally, if the value of one field is the first value, it indicates that the corresponding one or more second carrier groups support random access, and if the value of one field is the second value, it indicates that the corresponding one or more second carrier groups do not support random access, or vice versa. The first value and the second value may be preset.

For example, the plurality of fields may correspond to the M second carrier groups one by one in order, e.g., higher bits correspond to the first second carrier group and lower bits correspond to the second carrier group. For example, the indication manner of the indication information may refer to an example of table 6, where a value of a field corresponding to the indication information is "11110000", and one field is two bits. In the example corresponding to table 6, "00" indicates that the second carrier group corresponding to the field does not support random access, and "11" indicates that the second carrier group corresponding to the field supports random access. In this example, it is shown that the second carriers included in the second carrier group 1 and the second carrier group 2 support random access, and the second carriers included in the second carrier group 3 and the second carrier group 4 do not support random access.

TABLE 6

11	11	00	00
				Second carrier group 1	Second carrier group 2	Second carrier group 3	Second carrier group 4

For example, the plurality of fields may not be in one-to-one correspondence with the M second carrier groups, and the indication information may indicate whether each second carrier group supports random access according to a correspondence relationship between the plurality of fields and the M second carrier groups. In this embodiment, the network device needs to inform the terminal of the correspondence between the multiple fields and the M second carrier groups. Optionally, the correspondence may be included in the above-mentioned packet information, that is, the packet information further includes the correspondence between the multiple fields and the M second carrier groups, and the correspondence may also be included in other information or messages, which is not limited by the present application. For example, the correspondence between the fields and the M second carrier groups may refer to the example of table 3, which is not described herein.

The manner of indication of the indication information may refer to the example of table 7 based on the correspondence relation of table 3. In the example corresponding to table 7, the value of the field corresponding to the indication information is "1100", and one field corresponds to two bits. "00" indicates that the second carrier included in the second carrier group corresponding to the field does not support random access, and "11" indicates that the second carrier included in the second carrier group corresponding to the field supports random access. The meaning of the indication information is the same as that of table 6, but the content of the contained data is different. Compared with the mode of one-to-one correspondence between the field and the M second carrier groups, the method reduces the length of the field and can save the expenditure of signaling.

TABLE 7

In a second indication manner, the indication information includes the identifiers of the N second carrier groups. In such an embodiment, the network device needs to inform the terminal of the identity of the M second carrier groups. Optionally, the grouping information further includes an identification of M second carrier groups. Illustratively, the identification of the M second carrier groups may refer to the examples of table 5 above. Wherein the identity of each second carrier group is represented by 2 bits. In one example, if the indication information includes the identifier "10", it indicates that the second carrier included in the second carrier group 3 supports random access.

The terminal may determine which second carriers are random access capable based on the indication information.

S202, in case the indication information indicates that random access is supported on the second carrier, the network device receives message 1 only on the second carrier supporting the initiation of random access. Correspondingly, the terminal only sends the message 1 on the second carrier supporting random access indicated by the indication information.

The message 1 may refer to Msg1 as introduced in the foregoing. Wherein, the meaning of receiving the message 1 on the second carrier supporting the random access is that the message 1 sent by the terminal is detected/received on the RO resource configured on the second carrier supporting the random access. The meaning of transmitting the message 1 on the second carrier supporting the random access is that the message 1 is transmitted to the network device on RO resources configured for the second carrier supporting the random access.

It should be noted that, here, the "only in" refers to the range being "all second carriers in the first carrier range", that is, in the case where the indication information indicates that the random access is supported on the second carriers, the network device receives the message 1 only on the second carrier supporting the random access and no longer receives the message 1 on the other second carriers, and accordingly, the terminal transmits the message 1 only on the second carrier supporting the random access and no longer transmits the message 1 on the other second carriers for all the second carriers in the first carrier range. For other carriers than the first carrier and the second carrier in the present application, the network device may still receive the message 1 on these carriers, and correspondingly, the terminal may still send the message 1 on these carriers. Alternatively, the terminal may send message 1 on the second carrier supporting initiation of random access indicated by the indication information preferentially over the first carrier or other carriers. In this way, the network device does not have to receive message 1 on all the second carriers, and can save its own power consumption.

Optionally, in case the indication information indicates that random access is not supported on the second carrier, the network device does not receive message 1 on the second carrier. In this case, the network device informs the terminal that the random access is not initiated on the second carrier through the indication information, so that the network device does not need to detect the message 1 sent by the terminal on the RO resource configured by the second carrier, and energy consumption can be saved.

In some embodiments, in the case where the indication information indicates that random access is supported on the second carrier, the manner in which the terminal transmits message 1 only on the second carrier supporting the initiation of random access is: the terminal sends message 1 only on the second carrier supporting the initiation of random access and meeting the cell-camping conditions. Reference is made herein to the foregoing schematic only "in" a. Wherein the signal quality of the reference signal on the second carrier satisfying the cell residence condition is higher than a preset threshold. Signal quality may also be understood as signal strength, RSRP may be a reference indicator of signal quality. Other reference indicators may also be present for the signal quality, as the application is not limited in this regard. The preset threshold may be specified by a protocol, or preset, or indicated by a network device, and the present application is not limited.

That is, in the case where the indication information indicates that the random access is supported on the second carrier, after receiving the indication information from the network device through the first carrier, the terminal may determine that the random access is supported on the second carrier, and further determine which second carriers may support the random access. Then, the terminal determines whether a second carrier meeting the cell residence condition exists in the second carriers supporting random access by detecting/measuring the reference signals transmitted by the second carriers supporting random access indicated by the indication information. If there are one or more second carriers satisfying the cell-camping condition, the terminal may transmit message 1 on the second carrier satisfying the cell-camping condition. If there is no second carrier satisfying the cell residence condition among the second carriers supporting random access, the terminal may transmit message 1 through the first carrier. Alternatively, the terminal may also send message 1 via other carriers. In this way, the success rate of the terminal for sending the message 1 can be improved, and the communication quality can be ensured.

Alternatively, in the case where the indication information indicates that random access is not supported on the second carrier, the terminal does not transmit message 1 on the second carrier, and then the terminal may transmit message 1 through the first carrier. Alternatively, the terminal may also send message 1 via other carriers.

An exemplary description of the network architecture to which the method embodiment shown in fig. 6 is applied, and the manner in which information is exchanged between the devices, is provided below. Take the network architecture shown in fig. 1 as an example.

In a possible implementation manner, the network device 1, as a control device in a network architecture, generates and transmits indication information in an embodiment of the present application, where the indication information is used to indicate a random access related policy (whether random access is initiated on the second carrier and/or one or more second carriers supporting random access is supported).

Optionally, the network devices corresponding to the first carrier and the second carrier are the same network device, which is exemplified as the network device 1. In this implementation, the network device 1 may select whether to support initiating random access on the second carrier and/or one or more second carriers supporting random access. In case the indication information is used to indicate that no initiation of random access is supported on all the second carriers, the network device 1 does not need to receive the message 1 sent by the terminal on the second carriers. In case the indication information is also used to indicate the second carrier supporting random access, the network device 1 receives the message 1 only on the second carrier supporting random access indicated by the indication information, and it is not necessary to receive the message 1 sent by the terminal on all the second carriers.

Correspondingly, the terminal receives the indication information from the network device 1, and the terminal does not need to send the message 1 on the second carrier under the condition that the indication information is used for indicating that the random access is not supported on all the second carriers. In case the indication information is also used to indicate a second carrier supporting random access, the terminal transmits message 1 only on the second carrier supporting random access indicated by the indication information.

Optionally, the network devices corresponding to the first carrier and the second carrier are different network devices, and the example is that the first carrier corresponds to the network device 1, and the second carrier corresponds to the network device 2 and the network device 3. The network device 1 also sends this indication information to the network device 2 and the network device 3 corresponding to the non-anchor cell (or called second carrier) to inform the network device 2 and the network device 3 which second carriers can support random access. Accordingly, the network device 2 and the network device 3 receive the instruction information from the network device 1. In this implementation, the network device 1 may select whether to support initiating random access on the second carrier and/or one or more second carriers supporting random access. In case the indication information is used to indicate that no initiation of random access is supported on all the second carriers, the network device 2 and the network device 3 do not need to receive the message 1 sent by the terminal on the second carriers. In case the indication information is also used to indicate the second carrier supporting random access, the network device 2 and the network device 3 receive the message 1 only on the second carrier supporting random access indicated by the indication information, it is not necessary to receive the message 1 sent by the terminal on all the second carriers.

In another possible implementation manner, the centralized control device, as a control device in the network architecture, generates and sends indication information in the embodiment of the present application, where the indication information is used to indicate a random access related policy (whether to support initiating random access on the second carrier, and/or one or more second carriers supporting random access). In this implementation, the centralized control device may select whether to support initiating random access on the second carrier, and/or one or more second carriers supporting random access.

Optionally, the network devices corresponding to the first carrier and the second carrier are the same network device, which is exemplified as the network device 1. In this implementation, the network device 1 receives the indication information sent by the centralized control device, and sends the indication information to the terminal. In case the indication information is used to indicate that no initiation of random access is supported on all the second carriers, the network device 1 does not need to receive the message 1 sent by the terminal on the second carriers. In case the indication information is also used to indicate the second carrier supporting random access, the network device 1 receives the message 1 only on the second carrier supporting random access indicated by the indication information, and it is not necessary to receive the message 1 sent by the terminal on all the second carriers.

In the first case, the centralized control device may communicate only with the network device 1 corresponding to the anchor cell. Then, the network device 1 receives the indication information sent by the centralized control device, and the network device 1 sends the indication information to the network device 2 and the network device 3 corresponding to the non-anchor cell (or referred to as the second carrier) in addition to the terminal, so as to inform whether the network device 2 and the network device 3 support initiating random access on the second carrier, and/or which second carriers can support random access. Accordingly, the network device 2 and the network device 3 receive the instruction information from the network device 1. In case the indication information is used to indicate that no initiation of random access is supported on all the second carriers, the network device 2 and the network device 3 do not need to receive the message 1 sent by the terminal on the second carriers. In case the indication information is also used to indicate the second carrier supporting random access, the network device 2 and the network device 3 receive the message 1 only on the second carrier supporting random access indicated by the indication information, it is not necessary to receive the message 1 sent by the terminal on all the second carriers.

In the second case, the centralized control device may communicate with all network devices (network device 1, network device 2, and network device 3) within control range. Then, the network device 1 receives the instruction information transmitted by the centralized control device and transmits the instruction information to the terminal. Correspondingly, the terminal receives the indication information from the network device 1, and the terminal does not need to send the message 1 on the second carrier under the condition that the indication information is used for indicating that the random access is not supported on all the second carriers. In case the indication information is also used to indicate a second carrier supporting random access, the terminal transmits message 1 only on the second carrier supporting random access indicated by the indication information.

The network device 2 and the network device 3 receive the indication information sent by the centralized control device, and in the case that the indication information is used for indicating that the initiation of random access is not supported on all the second carriers, the network device 2 and the network device 3 do not need to receive the message 1 sent by the terminal on the second carriers. In case the indication information is also used to indicate the second carrier supporting random access, the network device 2 and the network device 3 receive the message 1 only on the second carrier supporting random access indicated by the indication information, it is not necessary to receive the message 1 sent by the terminal on all the second carriers.

In the method embodiment corresponding to fig. 6, in the case that the indication information is used to indicate that the initiation of random access is not supported on all the second carriers, the network device does not need to receive the message 1 sent by the terminal on the second carriers; in the case that the indication information is also used for indicating the second carrier supporting random access, the network device receives the message 1 only on the second carrier supporting random access indicated by the indication information, and it is unnecessary to receive the message 1 sent by the terminal on all the second carriers, so that the energy consumption of the network device can be reduced.

In the embodiment shown in fig. 6, the indication information for indicating whether to support the random access on the second carrier and the indication information for indicating the second carrier supporting the random access may also be different indication information, for example, the indication information 1 may be used to indicate whether to support the random access on the second carrier, and the indication information 2 may be used to indicate the second carrier supporting the random access. In this case, after the network device sends the indication information 1 to the terminal through the first carrier, if the indication information 1 indicates that the random access is supported on the second carrier, the network device may retransmit the indication information 2 through the first carrier, otherwise, the network device may not send the indication information 2. After receiving the indication information 1, if the indication information 1 indicates that the random access is supported on the second carrier, the terminal can determine that the network device will send the indication information 2, thereby determining which second carriers to send the message 1 specifically.

In the embodiment shown in fig. 6, the indication information may also directly indicate the second carrier supporting the random access, thereby indirectly indicating whether the random access is initiated on the second carrier. For example, if the indication information indicates one or more second carriers (or one or more second carrier groups), then random access is considered to be supported on the second carriers, otherwise (e.g., the bit value of the bit carrying the indication information does not correspond to the second carrier groups or to the second carriers), then random access is considered not to be supported on the second carriers.

It will be appreciated that, in order to implement the functions in the above embodiments, the terminal/network device includes corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application scenario and design constraints imposed on the solution.

Referring to fig. 7, fig. 7 shows a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device may be a network device, a device in a network device, or a device that can be used in a matching manner with a network device. The communication apparatus 70 shown in fig. 7 may include a first transmission unit 701 and a second transmission unit 702. Wherein:

A first sending unit 701, configured to send, to a terminal, indication information through a first carrier, where the indication information is used to indicate one or more second carriers, and a coverage area of the second carrier is within a coverage area of the first carrier. The operation performed by the first transmitting unit 701 may be described with reference to step S101 in the embodiment corresponding to fig. 5.

A second sending unit 702, configured to send a paging message only on the second carrier indicated by the indication information. The operation performed by the second transmitting unit 702 may be described with reference to step S102 in the embodiment corresponding to fig. 5.

In a possible implementation manner, the indication information is used to indicate N second carrier groups, where the N second carrier groups include the one or more second carriers, and N is an integer greater than 0.

In a possible implementation manner, the communication device further includes a third sending unit, where the third sending unit is configured to: and transmitting system information through the first carrier, wherein the system information comprises grouping information of the second carriers, the grouping information is used for indicating the second carriers contained in M second carrier groups, the N second carrier groups belong to the M second carrier groups, and M is an integer greater than or equal to N.

In one possible implementation, the indication information includes a plurality of fields, one corresponding to one or more second carrier groups of the M second carrier groups, and one for indicating whether the corresponding second carrier group supports paging.

In a possible implementation manner, the grouping information further includes correspondence between the plurality of fields and the M second carrier groups.

In a possible implementation, the indication information includes an identification of the N second carrier groups.

In a possible implementation, the grouping information further includes an identification of the M second carrier groups.

In one possible implementation, the indication information is carried in one or more of the following messages: the paging advance indication PEI, paging Downlink Control Information (DCI), paging message (paging message) and paging message.

It should be noted that, the communication device may execute the relevant steps of the network device in the method embodiment shown in fig. 5, and the implementation manner provided by each step may be referred to specifically, which is not described herein again.

Referring to fig. 8, fig. 8 shows a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device may be a terminal, a device in a terminal, or a device that can be used in cooperation with a terminal. The communication apparatus 80 shown in fig. 8 may include a first receiving unit 801 and a second receiving unit 802. Wherein:

A first receiving unit 801, configured to receive, via a first carrier, indication information from a network device, where the indication information is used to indicate one or more second carriers, and a coverage area of the second carriers is within a coverage area of the first carrier. The operation performed by the first receiving unit 801 may be described with reference to step S101 in the embodiment corresponding to fig. 5.

A second receiving unit 802, configured to receive the paging message only on the second carrier indicated by the indication information. The operation performed by the second receiving unit 802 may be described with reference to step S102 in the embodiment corresponding to fig. 5.

In a possible implementation manner, the communication device further includes a third receiving unit, where the third receiving unit is configured to: and receiving system information from the network equipment through the first carrier, wherein the system information comprises grouping information of the second carriers, the grouping information is used for indicating second carriers contained in M second carrier groups, the N second carrier groups belong to the M second carrier groups, and M is an integer greater than or equal to N.

In one possible implementation manner, the second receiving unit 802 is specifically configured to: receiving the paging message only on a second carrier indicated by the indication information and meeting a cell residence condition; wherein, the signal quality of the reference signal on the second carrier wave meeting the residence condition of the cell is higher than a preset threshold value; the second receiving unit 802 is further configured to: and if the second carrier wave meeting the residence condition of the cell does not exist in the second carrier wave indicated by the indication information, receiving the paging message through the first carrier wave.

It should be noted that, the communication device may execute the relevant steps of the terminal in the method embodiment shown in fig. 5, and specifically, the implementation manner provided by each step may be referred to, which is not described herein again.

Referring to fig. 9, fig. 9 shows a schematic structural diagram of a communication device according to an embodiment of the present application. The communication apparatus 90 shown in fig. 9 may include a transmission unit 901 and a reception unit 902.

In one possible embodiment:

the communication device may be a network device, a device in a network device, or a device that can be used in a matching manner with a network device. Wherein:

a sending unit 901, configured to send, to a terminal, indication information through a first carrier, where the indication information is used to indicate whether random access is supported on a second carrier, and a coverage area of the second carrier is within a coverage area of the first carrier. The operation performed by the transmission unit 901 may be described with reference to step S201 in the embodiment corresponding to fig. 6 described above.

A receiving unit 902, configured to receive the message 1 only on the second carrier supporting the initiation of the random access, in case the indication information indicates that the initiation of the random access on the second carrier is supported. The operation performed by the receiving unit 902 may be described with reference to step S202 in the embodiment corresponding to fig. 6.

In one possible implementation manner, in a case where the indication information indicates that the random access is supported on the second carrier, the indication information is further used to indicate N second carrier groups to which the second carrier supporting the random access belongs, where N is an integer greater than 0.

In one possible implementation, the sending unit 901 is further configured to: and transmitting system information through the first carrier, wherein the system information comprises grouping information of the second carriers, the grouping information is used for indicating the second carriers contained in M second carrier groups, the N second carrier groups belong to the M second carrier groups, and M is an integer greater than or equal to N.

In a possible implementation manner, the indication information includes a plurality of fields, one field corresponds to one or more second carrier groups of the M second carrier groups, and one field is used to indicate whether the corresponding second carrier group supports random access.

In a possible implementation manner, the indication information includes identification indication information of the N second carrier groups.

In this embodiment, the communication device may execute the relevant steps of the network device in the method embodiment shown in fig. 6, and the implementation manner provided by each step may be referred to specifically, which is not described herein.

In another possible embodiment:

the communication device may be a terminal, a device in a terminal, or a device that can be used in cooperation with a terminal.

Wherein:

a receiving unit 902, configured to receive, via a first carrier, indication information from a network device, where the indication information is used to indicate whether random access is supported on a second carrier, and a coverage area of the second carrier is within a coverage area of the first carrier. The operation performed by the receiving unit 902 may be described with reference to step S201 in the embodiment corresponding to fig. 6.

A sending unit 901, configured to send a message 1 only on the second carrier supporting the initiation of the random access, in a case where the indication information indicates that the initiation of the random access on the second carrier is supported. The operation performed by the transmission unit 901 may be described with reference to step S202 in the embodiment corresponding to fig. 6 described above.

In a possible implementation manner, in a case where the indication information indicates that random access is supported on the second carrier, the sending unit 901 is specifically configured to: in the case that the indication information indicates that the random access is supported to be initiated on the second carrier, sending a message 1 only on the second carrier which supports the random access and meets the cell residence condition; wherein, the signal quality of the reference signal on the second carrier wave meeting the residence condition of the cell is higher than a preset threshold value; the transmitting unit 901 is further configured to: and if the second carrier meeting the residence condition of the cell does not exist in the second carrier supporting the random access indicated by the indication information, sending a paging message through the first carrier.

In a possible implementation manner, in a case where the indication information indicates that the random access is supported on the indication information on the second carrier, the indication information is further used to indicate N second carrier groups to which the second carrier supporting the random access belongs, where N is an integer greater than 0.

In a possible implementation manner, the receiving unit 902 is further configured to: and receiving system information from the network equipment through the first carrier, wherein the system information comprises grouping information of the second carriers, the grouping information is used for indicating second carriers contained in M second carrier groups, the N second carrier groups belong to the M second carrier groups, and M is an integer greater than or equal to N.

In this embodiment, the communication device may execute the relevant steps of the terminal in the method embodiment shown in fig. 6, and the implementation manner provided by each step may be referred to specifically, which is not described herein.

Fig. 10 shows another communication device 100 according to an embodiment of the present application. In some embodiments, the communication apparatus 100 is configured to implement the functions of the network devices in fig. 5 and 6. The apparatus may be a network device or an apparatus for a network device. The means for the network device may be a system-on-chip or a chip within the network device. In other embodiments, the communication device 100 is configured to implement the functions of the terminal in fig. 5 and 6. The apparatus may be a terminal or an apparatus for a terminal. The means for the terminal may be a chip system or a chip within the terminal. The chip system may be composed of a chip or may include a chip and other discrete devices.

The communication device 100 comprises at least one processor 1020 for implementing data processing functions in the method provided by the embodiment of the application. The communication device 100 may further include a communication interface 1010 for implementing the transceiving operations in the method provided by the embodiment of the present application. In an embodiment of the application, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface for communicating with other devices over a transmission medium. For example, the communication interface 1010 is used for devices in the communication device 100 to communicate with other apparatuses. The processor 1020 utilizes the communication interface 1010 to transmit and receive data and is configured to implement the methods described in the above method embodiments in fig. 5 and 6.

The communication device 100 may also include at least one memory 1030 for storing program instructions and/or data. Memory 1030 is coupled to processor 1020. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which may be in electrical, mechanical, or other forms for information interaction between the devices, units, or modules. Processor 1020 may operate in conjunction with memory 1030. Processor 1020 may execute program instructions stored in memory 1030. At least one of the at least one memory may be included in the processor.

When the communication device 100 is powered on, the processor 1020 may read the software program in the memory 1030, interpret and execute instructions of the software program, and process data of the software program. When data needs to be transmitted wirelessly, the processor 1020 performs baseband processing on the data to be transmitted, and then outputs a baseband signal to a radio frequency circuit (not shown), and the radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal outwards in the form of electromagnetic waves through an antenna. When data is transmitted to the communication device 100, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1020, and the processor 1020 converts the baseband signal into data and processes the data.

In another implementation, the rf circuitry and antenna may be provided separately from the baseband processing processor 1020, for example, in a distributed scenario, the rf circuitry and antenna may be remotely located from the communication device.

The specific connection medium between the communication interface 1010, the processor 1020, and the memory 1030 is not limited in this embodiment. In the embodiment of the present application, the memory 1030, the processor 1020 and the communication interface 1010 are connected by a bus 1040 in fig. 10, where the bus is indicated by a thick line in fig. 10, and the connection manner between other components is merely illustrative and not limited thereto. The buses may be classified as address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 10, but not only one bus or one type of bus.

When the communication apparatus 100 is specifically used for a terminal/network device, for example, when the communication apparatus 100 is specifically a chip or a chip system, the output or the reception of the communication interface 1010 may be a baseband signal. When the communication apparatus 100 is a terminal/network device, the communication interface 1010 may output or receive radio frequency signals. In an embodiment of the present application, the processor may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or perform the methods, operations, and logic blocks disclosed in the embodiment of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. Operations of the methods disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.

It should be noted that, the communication device may perform the steps related to the terminal/network device in the foregoing method embodiment, and the implementation manner provided by each step may be referred to specifically, which is not described herein again.

For each device, product, or application to or integrated with a communication device, each module included in the device may be implemented by hardware such as a circuit, and different modules may be located in the same component (for example, a chip, a circuit module, or the like) or in different components in the terminal, or at least some modules may be implemented by using a software program, where the software program runs on a processor integrated in the terminal, and the remaining (if any) some modules may be implemented by hardware such as a circuit.

For the case where the communication device may be a chip or a chip system, reference may be made to the schematic structural diagram of the chip shown in fig. 11. The chip 110 includes logic 1101 and an interface 1102. Wherein the number of logic circuits 1101 may be one or more, and the number of interfaces 1102 may be a plurality.

In one embodiment, the logic 1101 is configured to perform the following:

transmitting indication information to a terminal through a first carrier, wherein the indication information is used for indicating one or more second carriers, and the coverage area of the second carriers is within the coverage area of the first carrier; and sending the paging message only on the second carrier indicated by the indication information.

In yet another embodiment, the logic 1101 is configured to perform the following:

receiving indication information from network equipment through a first carrier, wherein the indication information is used for indicating one or more second carriers, and the coverage area of the second carriers is within the coverage area of the first carrier; and receiving the paging message only on the second carrier indicated by the indication information.

transmitting indication information to a terminal through a first carrier, wherein the indication information is used for indicating whether random access is supported on a second carrier, and the coverage area of the second carrier is within the coverage area of the first carrier; in case the indication information indicates that random access is supported on the second carrier, message 1 is received only on the second carrier supporting the initiation of random access.

receiving indication information from network equipment through a first carrier, wherein the indication information is used for indicating whether random access is supported to be initiated on a second carrier, and the coverage area of the second carrier is within the coverage area of the first carrier; in case the indication information indicates that random access is supported on the second carrier, message 1 is sent only on the second carrier supporting the initiation of random access.

It should be noted that, the chip or the chip system may perform the relevant steps of the terminal/network device in the foregoing method embodiment, and specifically, reference may be made to the implementation manners provided by the foregoing steps, which are not described herein again.

As shown in fig. 12, fig. 12 is a schematic structural diagram of a module device according to an embodiment of the present application. The module apparatus 120 includes: a communication module 1201, a power module 1202, a memory module 1203, and a chip module 1204.

Wherein the power module 1202 is configured to provide power to the module device; the storage module 1203 is configured to store data and instructions; the communication module 1201 is used for performing internal communication of the module device or for communicating between the module device and an external device.

In one embodiment, the chip module 1204 is configured to:

In yet another embodiment, the chip module 1204 is configured to:

It should be noted that, the module device 120 may perform the steps related to the terminal/network device in the foregoing method embodiment, and the implementation manner provided by each step may be referred to specifically, which is not described herein.

The embodiment of the application also provides a computer readable storage medium, wherein instructions are stored in the computer readable storage medium, and when the computer readable storage medium runs on a processor, the method flow of the embodiment of the method is realized.

The present application also provides a computer program product, which when run on a processor, implements the method flows of the method embodiments described above.

With respect to each of the apparatuses and each of the modules/units included in the products described in the above embodiments, it may be a software module/unit, a hardware module/unit, or a software module/unit, and a hardware module/unit. For example, each module/unit included in each device or product applied to or integrated in the chip may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on an integrated processor inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same piece (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, the included modules/units may all be implemented in hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least some modules/units may be implemented in a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) some modules/units may be implemented in hardware such as a circuit.

It should be noted that, for simplicity of description, the foregoing method embodiments are all illustrated as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some acts may, in accordance with the present application, occur in other orders and concurrently. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.

The description of the embodiments provided by the application can be referred to each other, and the description of each embodiment has emphasis, and the part of the detailed description of one embodiment can be referred to the related description of other embodiments. For convenience and brevity of description, for example, reference may be made to the relevant descriptions of the method embodiments of the present application with respect to the functions and operations performed by the apparatus, devices, and methods provided by the embodiments of the present application, and reference may also be made to each other, to combinations, or to references between the apparatus embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims

1. A method of communication, the method comprising:

transmitting indication information to a terminal through a first carrier, wherein the indication information is used for indicating one or more second carriers, and the coverage area of the second carriers is within the coverage area of the first carrier;

and sending the paging message only on the second carrier indicated by the indication information.

2. The method of claim 1, wherein the indication information is used to indicate N second carrier groups, the N second carrier groups including the one or more second carriers, N being an integer greater than 0.

3. The method according to claim 2, wherein the method further comprises:

and transmitting system information through the first carrier, wherein the system information comprises grouping information of the second carriers, the grouping information is used for indicating the second carriers contained in M second carrier groups, the N second carrier groups belong to the M second carrier groups, and M is an integer greater than or equal to N.

4. The method of claim 3, wherein the indication information comprises a plurality of fields, one corresponding to one or more of the M second carrier groups, one for indicating whether the corresponding second carrier group supports paging.

5. The method of claim 4, wherein the grouping information further comprises correspondence between the plurality of fields and the M second carrier groups.

6. The method according to any of claims 2-5, wherein the indication information comprises an identification of the N second carrier groups.

7. The method according to any of claims 3-5, wherein the grouping information further comprises an identification of the M second carrier groups.

8. The method according to any of claims 1-7, wherein the indication information is carried in one or more of the following messages: the paging advance indication PEI, paging Downlink Control Information (DCI), paging message (paging message) and paging message.

9. A method of communication, the method comprising:

receiving indication information from network equipment through a first carrier, wherein the indication information is used for indicating one or more second carriers, and the coverage area of the second carriers is within the coverage area of the first carrier;

and receiving the paging message only on the second carrier indicated by the indication information.

10. The method of claim 9, wherein the indication information is used to indicate N second carrier groups, the N second carrier groups including the one or more second carriers, N being an integer greater than 0.

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

12. The method of claim 11, wherein the indication information includes a plurality of fields, one corresponding to one or more of the M second carrier groups, one for indicating whether the corresponding second carrier group supports paging.

13. The method of claim 12, wherein the grouping information further comprises correspondence between the plurality of fields and the M second carrier groups.

14. The method according to any of claims 10-13, wherein the indication information comprises an identification of the N second carrier groups.

15. The method according to any of claims 11-13, wherein the grouping information further comprises an identification of the M second carrier groups.

16. The method according to any of claims 9-15, wherein receiving the paging message only on the second carrier indicated by the indication information comprises:

receiving the paging message only on a second carrier indicated by the indication information and meeting a cell residence condition; wherein, the signal quality of the reference signal on the second carrier wave meeting the residence condition of the cell is higher than a preset threshold value;

the method further comprises the steps of:

and if the second carrier wave meeting the residence condition of the cell does not exist in the second carrier wave indicated by the indication information, receiving the paging message through the first carrier wave.

17. The method according to any of claims 9-16, wherein the indication information is carried in one or more of the following messages: the paging advance indication PEI, paging Downlink Control Information (DCI), paging message (paging message) and paging message.

18. A method of communication, the method comprising:

transmitting indication information to a terminal through a first carrier, wherein the indication information is used for indicating whether random access is supported on a second carrier, and the coverage area of the second carrier is within the coverage area of the first carrier;

In case the indication information indicates that random access is supported on the second carrier, message 1 is received only on the second carrier supporting the initiation of random access.

19. The method of claim 18, wherein, in the event that the indication information indicates support for initiating random access on a second carrier,

the indication information is further used for indicating N second carrier groups to which the second carriers supporting random access belong, where N is an integer greater than 0.

20. The method of claim 19, wherein the method further comprises:

21. The method of claim 20, wherein the indication information comprises a plurality of fields, one corresponding to one or more of the M second carrier groups, one for indicating whether the corresponding second carrier group supports random access.

22. The method of claim 21, wherein the grouping information further comprises correspondence between the plurality of fields and the M second carrier groups.

23. The method according to any of claims 19-22, wherein the indication information comprises an identification of the N second carrier groups.

24. The method according to any of claims 20-22, wherein the grouping information further comprises an identification of the M second carrier groups.

25. The method of any one of claims 18-24, wherein the indication information is carried in one or more of: the paging advance indication PEI, paging Downlink Control Information (DCI), paging message (paging message) and paging message.

26. A method of communication, the method comprising:

receiving indication information from network equipment through a first carrier, wherein the indication information is used for indicating whether random access is supported to be initiated on a second carrier, and the coverage area of the second carrier is within the coverage area of the first carrier;

in case the indication information indicates that random access is supported on the second carrier, message 1 is sent only on the second carrier supporting the initiation of random access.

27. The method of claim 26, wherein the message 1 is sent only on the second carrier supporting initiation of random access if the indication information indicates that initiation of random access on the second carrier is supported:

in the case that the indication information indicates that the random access is supported to be initiated on the second carrier, sending a message 1 only on the second carrier which supports the random access and meets the cell residence condition; wherein, the signal quality of the reference signal on the second carrier wave meeting the residence condition of the cell is higher than a preset threshold value;

the method further comprises the steps of:

and if the second carrier meeting the residence condition of the cell does not exist in the second carrier supporting the random access indicated by the indication information, sending a message 1 through the first carrier.

28. The method of claim 26, wherein, in the event that the indication information indicates support for initiating random access on the indication information on the second carrier,

29. The method of claim 28, wherein the method further comprises:

30. The method of claim 29, wherein the indication information comprises a plurality of fields, one corresponding to one or more of the M second carrier groups, one for indicating whether the corresponding second carrier group supports random access.

31. The method of claim 30, wherein the grouping information further comprises correspondence between the plurality of fields and the M second carrier groups.

32. The method according to any of claims 28-31, wherein the indication information comprises an identification of the N second carrier groups.

33. The method according to any of claims 29-31, wherein the grouping information further comprises an identification of the M second carrier groups.

34. The method according to any of claims 26-33, wherein the indication information is carried in one or more of the following messages: the paging advance indication PEI, paging Downlink Control Information (DCI), paging message (paging message) and paging message.

35. A communication device comprising means for implementing the method of any one of claims 1-34.

36. A communication device comprising a processor and a memory; the memory is used for storing a computer program; the processor being configured to invoke the computer program from the memory, causing the communication device to perform the method of any of claims 1-34.

37. A communication device, comprising: logic circuits and interfaces; the logic circuit is coupled with the interface;

the interface is for inputting and/or outputting code instructions, the logic circuitry being for executing the code instructions to cause the method of any one of claims 1 to 8 to be performed, or to cause the method of any one of claims 9 to 17 to be performed, or to cause the method of any one of claims 18 to 25 to be performed, or to cause the method of any one of claims 26 to 34 to be performed.

38. The utility model provides a module equipment, its characterized in that, module equipment includes communication module, power module, storage module and chip module, wherein:

the power supply module is used for providing electric energy for the module equipment;

The storage module is used for storing data and instructions;

the communication module is used for carrying out internal communication of module equipment or carrying out communication between the module equipment and external equipment;

the chip module is configured to perform the method of any one of claims 1 to 8, or the method of any one of claims 9 to 17, or the method of any one of claims 18 to 25, or the method of any one of claims 26 to 34.

39. A computer readable storage medium having stored therein computer readable instructions which, when run on a computer, cause the computer to perform the method of any of claims 1-34.