Communication method and communication apparatus

Abstract

A communication method and a communication apparatus, relating to the technical field of communications. In the method, a network device sends first information to a terminal device, the first information comprising first configuration information, a synchronization signal, and an identifier of a first cell, and the first configuration information being used for configuring a time-frequency resource for random access information of the first cell; and the terminal device sends the random access information of the first cell on the basis of the time-frequency resource configured by means of the first configuration information. In this way, the terminal device can be supported in accessing the first cell. Compared with a solution that a terminal device needs to first receive an SSB and then receive a SIB1 so as to obtain information related to cell access, the present solution can simplify the procedure for the terminal device to acquire information related to cell access, for example, the terminal device may not need to receive a SIB1, thereby reducing power consumption of the terminal device during a cell access procedure.

Description

Communication method and communication apparatus

[0001] This application claims priority to the Chinese Patent Application No. 202410978813.1, filed on July 19, 2024, and entitled "Communication method and communication apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of communication, and more particularly, to a communication method and a communication apparatus. BACKGROUND

[0003] In order to ensure that a terminal device searches a cell and accesses a new radio (NR) network, a network device needs to periodically send a synchronization signal block (SSB) and a system information block (SIB) 1. The SSB includes a physical downlink control channel (PDCCH) configuration of the SIB 1, and the PDCCH configuration of the SIB 1 can be used by the terminal device to search for and detect the SIB 1. The SIB 1 includes information related to cell access.

[0004] Currently, when performing a cell initial access procedure, the terminal device needs to first receive the SSB, search for and detect the SIB 1 in the SSB through the PDCCH configuration of the SIB 1, and obtain information related to cell access based on the SIB 1. However, the above procedure can cause high power consumption of the terminal device when performing the cell initial access procedure. For example, the terminal device needs to receive at least three times of information to obtain random access channel (RACH) resource information of the cell. Therefore, how to reduce the power consumption of the terminal device when performing the cell initial access procedure is a technical problem to be solved at present. SUMMARY

[0005] The present application provides a communication method and a communication apparatus, which can reduce the power consumption of a terminal device when performing a cell initial access procedure.

[0006] In a first aspect, a communication method is provided, comprising: receiving first information, the first information comprising first configuration information, a synchronization signal, and an identifier of a first cell, the first configuration information being used for configuring a time-frequency resource of random access information of the first cell; and transmitting the random access information of the first cell on the time-frequency resource.

[0007] The solution of the first aspect can be executed by an apparatus at a terminal device side. The apparatus at the terminal device side can be a terminal device, a module (such as a chip system, etc.) in the terminal device, or a logic node, a logic module, or software capable of realizing all or part of the functions of the terminal device. For ease of description, the terminal device is taken as an example for description hereinafter.

[0008] In the method, the configuration information of the time-frequency resource of the random access information of the first cell and the synchronization signal are both carried in the first information, and the terminal device can obtain the synchronization signal and the time-frequency resource of the random access information simultaneously according to the first information. Compared with the NR, the terminal device needs to receive an SSB first, then receive an SIB1, and obtain the information related to cell access. The above solution can simplify the process of obtaining the information related to cell access by the terminal device. For example, the terminal device can not receive the SIB1, thereby reducing the power consumption of the terminal device in the cell access process.

[0009] In the second aspect, a communication method is provided, which includes: determining first information, the first information including first configuration information, a synchronization signal, and an identifier of a first cell, the first configuration information being used for configuring a time-frequency resource of random access information of the first cell; and sending the first information.

[0010] The solution of the second aspect can be executed by an apparatus at a network device side. The apparatus at the network device side can be a network device, a module (such as a chip system, etc.) in the network device, or a logic node, a logic module, or software capable of realizing all or part of the functions of the network device. For ease of description, the network device is taken as an example for description hereinafter.

[0011] Through the above method, the network device can indicate the synchronization signal and the time-frequency resource of the random access information of the first cell to the terminal device through the first information. Compared with the network device needing to send an SSB first, then send an SIB1, thereby indicating the time-frequency resource of the random access information, the above solution can simplify the process of obtaining the information related to cell access by the terminal device. For example, the network device can not send the SIB1, thereby being able to reduce the power consumption of the terminal device in the cell access process, and also being able to reduce the power consumption of the network device, thereby realizing network energy saving.

[0012] In combination with any one of the first aspect and the second aspect, the first information further includes paging configuration information of the first cell.

[0013] In this way, the synchronization signal, the configuration information of the random access information, and the paging configuration information are carried in the same information, and the terminal device can receive the paging information sent by the network device to which the first cell belongs according to the paging configuration information of the first cell in the first information, thereby being able to support the terminal device to successfully access the first cell and complete camping.

[0014] In any of the first aspect and the second aspect, the first information further includes N pieces of second configuration information and identifiers of N second cells, the second configuration information is used for configuring time-frequency resources of random access information of the second cells, and N is a positive integer.

[0015] By including the N pieces of second configuration information and the identifiers of the N second cells in the first information, a network device to which the second cells belong does not need to send corresponding second configuration information. When the terminal device moves to the second cell, the terminal device sends random access information of the second cell to the network device to which the second cell belongs according to the second configuration information, and the network device to which the second cell belongs can receive the random access information of the second cell, thereby supporting random access of the terminal device to the second cell.

[0016] In any of the first aspect and the second aspect, the first cell is a cell currently located by the terminal device, and the second cell is a neighboring cell of the first cell.

[0017] In any of the first aspect and the second aspect, the first information further includes paging configuration information of the N second cells.

[0018] In this way, when the first information further includes the paging configuration information of the second cell, the terminal device can receive paging information sent by a network device corresponding to the second cell according to the paging configuration information of the second cell, thereby supporting successful access of the terminal device to the second cell and completion of camping. In addition, the terminal device does not need to receive SIB1, which also supports reduction of power consumption of the terminal device.

[0019] In any of the first aspect and the second aspect, the random access information of the first cell includes at least one of identifier information of the terminal device and tracking area information of the terminal device.

[0020] When the random access information of the first cell includes the identifier information of the terminal device, a network device to which the first cell belongs can determine, according to the identifier information of the terminal device, that the terminal device has a data transmission requirement, and then initiate a radio resource control (RRC) connection to the terminal device or initiate data transmission to the terminal device. Alternatively, the network device to which the first cell belongs can determine, according to the identifier of the terminal device, that the random access information of the first cell comes from the terminal device.

[0021] When the random access information of the first cell includes the tracking area information of the terminal device, the network device to which the first cell belongs determines, according to the tracking area information of the terminal device, whether the terminal device belongs to a tracking area of the network device corresponding to the first cell.

[0022] In any of the first aspect and the second aspect, the first information further includes physical downlink control channel configuration information of the system message.

[0023] In this way, by carrying the physical downlink control channel configuration information in the first information, the network device and the terminal device can support updating of the system message.

[0024] In any of the first aspect and the second aspect, a sending period of the first information is greater than 160 ms.

[0025] In any of the first aspect and the second aspect, the sending period of the first information is 320 ms, 640 ms, or 1280 ms.

[0026] In NR, a sending period of an SSB is at most 160 ms, while in the embodiments of the present application, the sending period of the first information is greater than 160 ms. By lengthening the sending period of the first information, the frequency of sending the first information by the network device can be reduced, which is conducive to reducing the energy consumption of the network device.

[0027] In any of the first aspect and the second aspect, the synchronization signal includes a primary synchronization signal and a secondary synchronization signal.

[0028] In a third aspect, a communication apparatus is provided, which can be a terminal device, or a device or module for performing terminal device functions, etc.

[0029] In a possible implementation, the communication apparatus can include a module or unit corresponding to each of the methods / operations / steps / actions described in the first aspect, which can be a hardware circuit, software, or a combination of hardware circuit and software.

[0030] For example, the communication apparatus includes a transceiver unit and a processing unit.

[0031] In a fourth aspect, a communication apparatus is provided, which can be a network device, or a device or module for performing network device functions, etc.

[0032] In a possible implementation, the communication apparatus can include a module or unit corresponding to each of the methods / operations / steps / actions described in the second aspect, which can be a hardware circuit, software, or a combination of hardware circuit and software.

[0033] For example, the communication apparatus includes a transceiver unit and a processing unit.

[0034] In a fifth aspect, a communication apparatus is provided, which comprises a processor configured to cause the communication apparatus to perform the method in the first aspect and any possible implementation of the first aspect, or the method in the second aspect and any possible implementation of the second aspect, by executing computer program or instructions, or by logic circuit.

[0035] In a possible implementation, the communication apparatus further comprises a memory configured to store the computer program or instructions.

[0036] In a possible implementation, the communication apparatus further comprises a communication interface configured to input and / or output signals.

[0037] In a sixth aspect, a communication apparatus is provided, which comprises a logic circuit and an input / output interface configured to input and / or output signals, and the logic circuit is configured to perform the method in the first aspect and any possible implementation of the first aspect, or the method in the second aspect and any possible implementation of the second aspect.

[0038] In a seventh aspect, a computer readable storage medium is provided, which stores computer program or instructions, and when the computer program or the instructions are run on a computer, the method in the first aspect and any possible implementation of the first aspect is performed, or the method in the second aspect and any possible implementation of the second aspect is performed.

[0039] In an eighth aspect, a computer program product is provided, which contains instructions, and when the instructions are run on a computer, the method in the first aspect and any possible implementation of the first aspect is performed, or the method in the second aspect and any possible implementation of the second aspect is performed.

[0040] In a ninth aspect, a chip or chip system is provided, which comprises one or more processors configured to execute computer program or instructions in the memory, so that the chip or chip system implements the method in the first aspect and any possible implementation of the first aspect, or the method in the second aspect and any possible implementation of the second aspect.

[0041] In a tenth aspect, a chip is provided, which is installed in a communication device, and the chip comprises a processor and a communication interface, and when the processor reads instructions and runs through the communication interface, the communication device performs the method in the first aspect and any possible implementation of the first aspect, or the method in the second aspect and any possible implementation of the second aspect.

[0042] The beneficial effects described in relation to any of the third to tenth aspects can be found in relation to the beneficial effects described in relation to the first to second aspects, and are not repeated. BRIEF DESCRIPTION OF DRAWINGS

[0043] Fig. 1 is a schematic diagram of a communication system to which embodiments of the application are applicable.

[0044] Fig. 2 is a schematic diagram of an interaction flow of a communication method according to an embodiment of the application.

[0045] Fig. 3 is a schematic diagram of a cyclic shift.

[0046] Fig. 4 is a schematic block diagram of a communication apparatus according to an embodiment of the application.

[0047] Fig. 5 is a schematic block diagram of another communication apparatus according to an embodiment of the application. DETAILED DESCRIPTION

[0048] In order to facilitate understanding of the embodiments of the application, the following points are first explained.

[0049] I. Unless otherwise stated, the meaning of "a plurality of" is two or more.

[0050] II. If there is no special description and logical conflict, the terms and / or descriptions between different embodiments of the application are consistent and can be mutually referred to. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0051] III. The various numerical numbers involved in the application are only used for differentiation for the convenience of description, and are not used to limit the protection scope of the application. The size of the serial numbers involved in the application does not mean the execution order. The execution order of each process should be determined according to its function and inherent logic. For example, the terms "first", "second", "third", "fourth" and other various term labels in the specification and claims of the application and the drawings (if any) are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. Among them, the data thus used can be interchanged under appropriate circumstances, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.

[0052] At the same time, any embodiment or design scheme described as "exemplary" or "for example" in the application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of "exemplary" or "for example" and the like is intended to present the relevant concept in a specific manner for understanding.

[0053] Four, the terms "include" and "have" and any variations thereof are intended to cover inclusive rather than exclusive inclusion, for example, a process, method, system, product or apparatus that comprises a list of steps or units is not necessarily limited to those steps or units that are clearly listed, but can include other steps or units that are not clearly listed or inherent to such processes, methods, products or apparatuses.

[0054] Five, in this application, "for indicating" can be understood as "enabling", and "enabling" includes direct enabling and indirect enabling. When describing that certain information is used to enable A, it can include that the information directly enables A or indirectly enables A, and it does not mean that A must be carried in the information.

[0055] The information enabled by the information is called to-be-enabled information, and there are many ways to enable the to-be-enabled information in the specific implementation process, for example, but not limited to, the to-be-enabled information can be directly enabled, such as the to-be-enabled information itself or the index of the to-be-enabled information. The to-be-enabled information can also be indirectly enabled by enabling other information, wherein the other information and the to-be-enabled information have an association relationship. The to-be-enabled information can also be enabled only in part, and the other part of the to-be-enabled information is known or agreed in advance. For example, the enabling of a specific information can also be achieved by means of the arrangement order of each information agreed in advance (for example, specified by a protocol), thereby reducing the enabling overhead to a certain extent. At the same time, the common part of each information can be identified and uniformly enabled to reduce the enabling overhead caused by separately enabling the same information.

[0056] In addition, "indicating" can include direct indication, indirect indication, display indication, and implicit indication. When describing that certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0057] In this application, the information indicated by the indication information is called to-be-indicated information. In the specific implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or the index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, wherein the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only in part, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the arrangement order of each information agreed in advance (for example, specified by a protocol), thereby reducing the indication overhead to a certain extent. In addition, the to-be-indicated information can be sent as a whole, or can be sent separately in multiple sub-information, and the sending period and / or sending time of these sub-information can be the same or different.

[0058] VI. The term "storage" or "preservation" in this application can refer to storage in one or more memory devices. These memory devices can be separately configured or integrated into an encoder, decoder, processor, or communication device. Alternatively, some memory devices can be separately configured, while others can be integrated into a decoder, processor, or communication device. The type of memory can be any form of storage medium, and this is not limited.

[0059] VII. The "protocol" used in this application may refer to standard protocols in the field of communications, for example, it may include fourth-generation (4G) protocols. th Generation 4G network, fifth generation (5G) network th This application does not limit the scope to network protocols such as 5G (generation, 5G), New Radio (NR), 5.5G, and related protocols applied in future communication networks.

[0060] 8. In the schematic diagrams in the accompanying drawings of this application, the dashed arrows or boxes indicate optional steps or optional modules.

[0061] 9. Unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can mean A or B. In this application, "and / or" is merely a description of the relationship between the related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural.

[0062] 10. In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include direct transmission via the air interface or indirect transmission by other units or modules via the air interface. "Receive information from YY" can be understood as the source of the information being YY, which may include direct reception from YY via the air interface or indirect reception from YY by other units or modules via the air interface. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface. In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.

[0063] First, the communication system to which the embodiments of this application are applicable will be described.

[0064] FIG. 1 is a schematic diagram of a communication system to which embodiments of the present application are applicable. As shown in FIG. 1, the communication system includes a radio access network (RAN) 100 and a core network (CN) 200. The RAN 100 includes at least one RAN node (e.g., 110a and 110b, collectively referred to as 110) and at least one terminal device (e.g., 120a-120j, collectively referred to as 120). The RAN 100 can further include other RAN nodes, such as a wireless relay device and / or a wireless backhaul device (not shown in FIG. 1), etc. The terminal devices 120 are connected to the RAN nodes 110 wirelessly. The RAN nodes 110 are connected to the CN 200 wirelessly or wiredly. The core network devices in the CN 200 and the RAN nodes 110 in the RAN 100 can be different physical devices respectively, or can be the same physical device integrated with the logical functions of the CN and the RAN respectively.

[0065] The RAN 100 can be a third generation partnership project (3 rd generation partnership project,3GPP) related cellular system, such as a 4G, 5G communication system or a future-oriented evolved system. The RAN 100 can also be an open radio access network (O-RAN or ORAN), a cloud radio access network (C-RAN or CRAN), a wireless fidelity (Wi-Fi) system. The RAN 100 can also be a communication system in which two or more of the above systems are fused.

[0066] The RAN nodes 110, which can also be referred to as access network devices, RAN entities, or access nodes, etc., are configured to help terminal devices to access wirelessly. The RAN nodes 110 in the communication system 100 can be of the same type or of different types. In some scenarios, the roles of the RAN nodes 110 and the terminal devices 120 are relative, for example, the network element 120i can be a helicopter or a drone, which can be configured as a mobile base station. For a terminal device 120j that accesses the RAN 100 through the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal device. The RAN nodes 110 and the terminal devices 120 are sometimes referred to as communication apparatuses, for example, the network elements 110a and 110b can be understood as communication apparatuses with base station functions, and the network elements 120a-120j can be understood as communication apparatuses with terminal functions.

[0067] In one possible scenario, the RAN node can be a base station (BS), an evolved Node B (eNB), an access point (AP), a transmission point (TP), a transmission reception point (TRP), a next generation base station (gNB), a central node or access node in a future communications network, or an access node in a Wi-Fi system, etc. The RAN node can be a macro base station (e.g., 110a in FIG. 1), a micro base station or indoor station (e.g., 110b in FIG. 1), a relay node or a donor node, or a radio controller in a CRAN scenario.

[0068] The RAN node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. All or part of the functions of the RAN node in this application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform, such as a cloud platform. The RAN node in this application can also be a logical node, a logical module or software that can implement all or part of the functions of the RAN node.

[0069] In another possible scenario, a plurality of RAN nodes cooperate to assist a terminal device to implement wireless access, and different RAN nodes implement part of the functions of a base station. For example, the RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH).

[0070] The CU (or CU-CP and CU-UP), DU or RU can also have different names in different communication systems, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU and RU are taken as examples for description in this application. Any one of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0071] The number of devices in the above communication system is only illustrative and is not limited thereto. In actual applications, the communication system can further include more terminal devices, more RAN devices, and can further include other devices.

[0072] In the embodiments of the present application, the terminal device is a device with wireless transceiving function, which can be referred to as a user equipment (UE), an access terminal, a subscriber unit, a user station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent or a user apparatus.

[0073] In the embodiments of the present application, the terminal device can also be a satellite phone, a cellular phone, a smart phone, a wireless data card, a wireless modem, a machine type communication device, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a customer-premises equipment (CPE), a smart point of sale (POS) machine, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a communication device carried on an aerial vehicle, a wearable device, a drone, a robot, a terminal in device-to-device (D2D) communication, a terminal in vehicle-to-everything (V2X) communication, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in telemedicine or telehealth services, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, or a terminal device in a communication network evolved after 5G, etc., without limitation.

[0074] In the embodiments of the present application, the terminal device can also be a device with communication function in a future communication network, without limitation to the form or type of the terminal device in the future communication network, etc.

[0075] In the embodiments of the present application, the communication apparatus for implementing the function of the terminal device can be a terminal device, or an apparatus capable of supporting the terminal device to implement the function, such as a chip system. The apparatus can be installed in the terminal device or used in matching with the terminal device. In the present application, the chip system can be composed of a chip, or include a chip and other discrete devices.

[0076] In the embodiments of the present application, the network device is a device with wireless transceiving function, which is used for communication with the terminal device. The network device can be a node in the RAN, also can be called a base station, and also can be called a RAN node, which can be an eNB of long term evolution (LTE), or a base station of 5G network such as gNB, or a base station in a public land mobile network (PLMN) evolved after 5G, a broadband network gateway (BNG), a convergence switch, or a network device in 3GPP, etc.

[0077] The network device can also include various forms of base stations, such as macro base stations, micro base stations (also known as small stations), relay stations, TRPs, transmission points (TPs), mobile switching centers, and devices that perform base station functions in D2D, V2X, machine-to-machine (M2M) communication, network devices in non-terrestrial networks (NTN), etc., without specific limitation.

[0078] In the embodiments of the present application, the communication device for implementing the function of the network device can be a network device, or a device capable of supporting the network device to implement the function, such as a chip system. The device can be installed in the network device or used in matching with the network device. The chip system in the embodiments of the present application can be composed of a chip, or can include a chip and other discrete devices.

[0079] The network architecture and service scenarios described in the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the present application. It is known to those skilled in the art that, with the evolution of communication network architecture and the appearance of new service scenarios, the technical solutions provided by the present application are also applicable to similar technical problems. For example, the present application can be applied to V2X scenarios.

[0080] The main terms related to the embodiments of the present application are briefly described below.

[0081] I. SSB

[0082] The SSB includes primary synchronization signals (PSS), secondary synchronization signals (SSS), and a physical broadcast channel (PBCH).

[0083] PSS and SSS can be used to determine the physical cell identifier (PCI) of the cell. Wherein, the PCI is related to N ID 1 and N ID 2 . For example, PSS is used to determine N ID 2 , N ID 2 belongs to {0, 1, 2}; SSS is used to determine N ID 1 , N ID 1 belongs to {0, 1, …, 334, 335}.

[0084] The main information carried by PBCH is master information block (MIB), and the MIB includes the related information of SIB1, such as the PDCCH configuration information of SIB1, which is used for the search and detection of SIB1. In addition, SIB1 includes information related to cell access, such as random access parameters. The description of SIB1 and MIB can be referred to the existing standard, and will not be repeated here.

[0085] II. Cell initial access process

[0086] In the current NR, the process of terminal device initial access is as follows:

[0087] a. The network device periodically sends SSB to the terminal device. Correspondingly, the terminal device receives SSB according to the sending period of SSB.

[0088] b. Since PSS and SSS have fixed positions in time-frequency resources, by detecting PSS and SSS, the terminal device realizes symbol synchronization, frame synchronization and obtains PCI with the network device.

[0089] c. The terminal device decodes PBCH according to the information provided by PSS and SSS and obtains MIB message. The MIB message includes key parameters required for decoding other system information (SI), such as the PDCCH configuration information of SIB1.

[0090] d. The terminal device finds control resource set (CORSET) 0 and search space (SS) according to the PDCCH configuration of SIB1 in the MIB message.

[0091] e. The terminal device blindly decodes downlink control information (DCI) 1_0 for scheduling SIB1 in the configured SS.

[0092] f. After detecting the DCI 1_0, the terminal device uses a system information radio network temporary identifier (RNTI) to further verify and obtain the specific content of the DCI 1_0.

[0093] g. The terminal device uses the information provided in the DCI 1_0 to find and decode the SIB1 message carried on the physical downlink shared channel (PDSCH).

[0094] h. The terminal device obtains key parameters required for decoding other SIB messages according to the SIB1.

[0095] i. The terminal device obtains RACH resources according to the RACH-related information included in the SIB1, and can also continue to decode other SIB messages according to the key parameters required for decoding other SIB messages in the SIB1 to obtain complete network configuration and random access information.

[0096] In the current cell initial access procedure, the terminal device needs to obtain the information of the PDCCH configuration of SIB1 according to the PBCH in the SSB, and perform search and detection of SIB1 according to the PDCCH configuration of SIB1. After receiving the SIB1, the terminal device obtains the information related to cell access according to the SIB1, and completes the cell initial access procedure (or implements the cell initial access) according to the information.

[0097] However, the above procedure can cause high power consumption of the terminal device, for example, the terminal device needs to receive at least three times of information to obtain the RACH resource information of the cell. Therefore, the present application provides a communication method and a communication device, which can reduce the power consumption of the terminal device during cell initial access.

[0098] The communication method of the embodiments of the present application is described below in conjunction with the accompanying drawings.

[0099] For the convenience of understanding and description, the communication method of the embodiments of the present application is described below by taking the network-side device and the terminal-side device as examples, but this should not constitute any limitation on the execution subject of the communication method of the embodiments of the present application. For example, the network-side device can be a network device 110, or a functional module (such as a circuit, a chip, or a chip system, etc.), or a logic node, a logic module, or software capable of realizing all or part of the functions of the network-side device. Similarly, the terminal-side device can be a terminal device 120, or a functional module (such as a circuit, a chip, or a chip system, etc.), or a logic node, a logic module, or software capable of realizing all or part of the functions of the terminal-side device.

[0100] When the steps involving sending or receiving are performed by modules (such as circuits, chips, or chip systems, etc.), logic nodes, logic modules, or software, etc. in the network-side device and the terminal-side device, the sending / receiving can be understood as communication through a communication interface, an input / output interface, a pin, or a circuit, etc.

[0101] FIG. 2 is an interaction flow diagram of a communication method according to an embodiment of the present application. As shown in FIG. 2, the method includes:

[0102] S201, the network device 110 determines first information.

[0103] In order to reduce the power consumption of the terminal device when performing a cell access procedure, the first information determined (or generated) by the network device 110 can include first configuration information, synchronization information, and an identifier of a first cell, the first configuration information being used to configure a time-frequency resource of random access information of the first cell, and the synchronization signal being used for synchronization between the terminal device and the network device. Alternatively, the time-frequency resource of the random access information of the first cell included in the first information can be used by the terminal device to send the random access information of the first cell to the network device to which the first cell belongs, thereby supporting the terminal device to access the first cell.

[0104] When the configuration information of the time-frequency resource of the random access information of the first cell and the synchronization signal are both carried in the first information, the terminal device can simultaneously obtain the synchronization signal and the time-frequency resource of the random access information according to the first information.

[0105] In a possible implementation, the synchronization signal described above can include a PSS and a SSS. The identifier of the first cell can be represented by a PCI, or other terms, which are not limited. In one possible example, the random access information of the first cell can be replaced by terms such as the uplink random access signal of the first cell or the random access signal of the first cell, which are not limited.

[0106] In the embodiments of the present application, the random access information of the first cell can be composed of a group of orthogonal sequences (such as a preamble sequence or an M sequence, etc.). For example, the generation mode of the preamble sequence can be:

[0107] 1) Generate one ZC root sequence using prach-RootSequenceIndex.

[0108] 2) Generate 64 different preamble sequences by cyclically shifting the ZC root sequence.

[0109] The first ZC root sequence index of each cell can be indicated by prach-RootSequenceIndex. If the number of preamble sequences generated by cyclically shifting the ZC root sequence corresponding to the ZC root sequence index is less than 64, the preamble sequences can be continued to be generated using the ZC root sequence corresponding to the next ZC root sequence index until 64 preamble sequences are generated.

[0110] The formula for generating the ZC root sequence is as follows:

[0111] μ: The index of the ZC root sequence is related to the length of the preamble sequence, for example, the length of the preamble sequence L RA is 839, μ takes values from 1 to 838; or, the length of the preamble sequence L RA is 139, μ takes values from 1 to 138.

[0112] 3GPP TS 38.211 V15.7.0 defines the index table of the ZC root sequence, which can be seen in Table 1, which is an example with L RA = 139.

[0113] Table 1

[0114] As shown in Table 1, for example, prach-RootSequenceIndex indicates i = 0, then μ = 1; prach-RootSequenceIndex indicates i = 1, then μ = 138.

[0115] On the basis of a specific ZC root sequence, more zero-correlation preamble sequences can be generated by cyclically shifting. Cyclically shifting means shifting the ZC root sequence in a way that the beginning and the end of the ZC root sequence are connected, which can be seen in Figure 3.

[0116] Figure 3 is a schematic diagram of cyclically shifting. As shown in Figure 3, the length of the ZC root sequence is L RAThe value is 10. The first and last bits are connected and shifted by 3 and 6 bits respectively. Before the shift, the ZC root sequence is: {X1(0), X1(1), X1(2), X1(3), X1(4), X1(5), X1(6), X1(7), X1(8), X1(9)}. After shifting by three bits, the ZC root sequence is: {X1(3), X1(4), X1(5), X1(6), X1(7), X1(8), X1(9), X1(0), X1(1), X1(2)}. After shifting by three more bits, the ZC root sequence is: {X1(6), X1(7), X1(8), X1(9), X1(0), X1(1), X1(2), X1(3), X1(4), X1(5)}.

[0117] The formula for circular shift can be:

[0118] Where, N CS `L` represents the cyclic shift length, configured via `zeroCorrelationZoneConfig`. Network device 110 can send `zeroCorrelationZoneConfig` as a random access configuration for the cell to terminal device 120. `v` represents the number of preamble sequences that a ZC root sequence can generate, equal to `L`. RA / N CS Round down, for example, L RA 139, N CS If the value is 19, then v = 7.

[0119] Example of generating 64 leader sequences:

[0120] 1) Calculate N based on the cell radius CS Assuming the cell radius is set to R, N is calculated. CS The value is 19. The corresponding zeroCorrelationZoneConfig is 10, which can be obtained from 6.3.3.1-7 in 3GPP TS 38.211 V15.7.0, as shown in Table 2.

[0121] Table 2

[0122] 2) Determine the index of the first ZC root sequence: Assume the length of the preceding sequence is L. RA The value is 139, the first ZC root sequence index is 0 (indicated by prach-RootSequenceIndex), and terminal device 120 obtains μ=1 by looking up table 1.

[0123] 3) Calculate the number of leading sequences generated for each root sequence: based on LRA = 139 and N CS =19, calculating a ZC root sequence can generate preamble sequences.

[0124] 4) Calculate the number of root sequences and the corresponding index that need to be used: one cell needs 64 preamble sequences, so it needs ZC root sequences, the indexes are respectively: 1, 138, 2, 137, 3, 136, 4, 135, 5 and 134.

[0125] 5) Generate the corresponding 64 preamble sequences according to formula (1) and formula (2).

[0126] In this way, different terminal devices can select different sequences to avoid collision.

[0127] In a possible implementation, the random access information of the first cell includes at least one of the identification information of the terminal device 120 and the tracking area information of the terminal device 120. The tracking area information of the terminal device 120 can include a tracking area identifier of the terminal device 120 or a tracking area index of the terminal device 120, and the like.

[0128] For example, when the random access information of the first cell includes the identification information (such as the identification or index information of the terminal device 120, and the like) of the terminal device 120, the network device (which can be the network device 110) to which the first cell belongs can determine that the terminal device 120 has a data transmission requirement according to the identification information of the terminal device 120, and then can initiate a radio resource control (RRC) connection to the terminal device 120 or initiate data transmission to the terminal device. Alternatively, the network device to which the first cell belongs can determine that the random access information of the first cell is from the terminal device 120 according to the identification of the terminal device 120.

[0129] For example, when the random access information of the first cell includes the tracking area information of the terminal device 120, the network device to which the first cell belongs can determine whether the terminal device 120 belongs to the tracking area of the network device to which the first cell belongs according to the tracking area information of the terminal device 120.

[0130] Further, when the network device to which the first cell belongs determines that the terminal device 120 belongs to the tracking area of the network device to which the first cell belongs, the network device to which the first cell belongs can initiate an RRC connection to the terminal device 120.

[0131] Further, when the network device to which the first cell belongs determines that the terminal device 120 does not belong to the tracking area of the network device to which the first cell belongs, the network device to which the first cell belongs can not initiate an RRC connection to the terminal device 120.

[0132] In a possible implementation, the first information can include the first configuration information and a synchronization signal, and the synchronization signal can indicate the identity of the first cell. In this way, the signaling overhead for indicating the identity of the first cell can be reduced.

[0133] In a possible implementation, the first information can further include paging configuration information of the first cell.

[0134] For example, the paging configuration information of the first cell can include, but is not limited to, a paging cycle (discontinuous reception (DRX) cycle), a bias of a paging frame (PF) in the paging cycle, a starting position of a paging occasion (PO), and the like. One DRX cycle includes at least one PF. One PF corresponds to at least one PO. The terminal device 120 only needs to wake up once in one DRX cycle to monitor one PO. In addition, the DRX cycle represents the period in which the terminal device 120 detects paging, the PF represents the system frame in which the terminal device 120 detects paging, and the PO represents the specific PDCCH monitoring occasion in which the terminal device detects paging.

[0135] The terminal device 120 can calculate and determine the positions of the PF and the PO by using a related formula. For example,

[0136] PF: (SFN + PF_offset) mod T = (T div N)*(UE_ID mod N);

[0137] i_s: floor(UE_ID / N) mod N S = 0.

[0138] wherein SFN represents a system frame number (SFN), T represents a DRX cycle, and N represents the total number of PFs in T. Generally, there is a T c in the system information at a cell level. UE There can also be a T UE at a UE level. UE If T UE is not indicated, T = T c ; if T UE is indicated, T = min{T Sindicates the number of POs corresponding to one PF. PF_offset indicates the offset of the PF. UE_ID indicates the remainder of the international mobile subscriber identifier (IMSI) mod 1024, wherein mod is a modulo operation. floor indicates a down-rounding function. i_s indicates the index of the PO corresponding to the PF.

[0139] The description of the paging configuration information of the first cell can refer to Table 3.

[0140] Table 3

[0141] Based on the content shown in Table 3, it can be concluded that the terminal device 120 needs to wake up every 320 ms (T*10 ms) and try to receive paging information. In the DRX cycle, one PF in every two system frames (N=16) can be used to send paging information. Different terminal devices can select a corresponding PO from the 16 POs in the above-mentioned DRX cycle based on their different UE_IDs to receive paging information.

[0142] Thus, when the first information further includes the paging configuration information of the first cell, the terminal device 120 can receive the paging information sent by the network device to which the first cell belongs according to the paging configuration information of the first cell in the first information, thereby supporting the terminal device 120 to successfully access the first cell and complete camping. In addition, the terminal device 120 does not need to receive SIB1, which can also support reducing the power consumption of the terminal device 120.

[0143] S202, the network device 110 sends the first information to the terminal device 120. Correspondingly, the terminal device 120 receives the first information.

[0144] For example, the first information can be carried in a downlink signal, such as SSB or other signals. For another example, the first information can be carried in dedicated signaling, such as RRC signaling.

[0145] It should be noted that when the first information is carried in the SSB, the SSB is a newly designed SSB, and the newly designed SSB includes the time-frequency resource of the random access information of the cell.

[0146] Specifically, the network device 110 can periodically send the first information to the terminal device 120.

[0147] In one possible implementation, the sending period of the first information is greater than 160 ms, for example, 320 ms, 640 ms, 1280 ms, etc.

[0148] In the NR, the transmission period of the SSB is up to 160 ms, while in the embodiments of the present application, the transmission period of the first information is greater than 160 ms. By lengthening the transmission period of the first information, the frequency of the network device 110 transmitting the first information can be reduced, which is beneficial to reduce the energy consumption of the network device 110. S203, the terminal device 120 transmits the random access information of the first cell. Correspondingly, the network device to which the first cell belongs receives the random access information of the first cell.

[0149] When the terminal device 120 receives the first information, the terminal device 120 determines the time-frequency resource of the random access information of the first cell according to the first configuration information, and transmits the random access information of the first cell to the network device to which the first cell belongs through the time-frequency resource. The network device to which the first cell belongs can correctly detect the random access information of the first cell, and can determine that the terminal device 120 requests to access the first cell according to the random access information of the first cell.

[0150] Through the above method, the terminal device 120 can determine the time-frequency resource for transmitting the random access information of the first cell according to the first configuration information in the first information, and can transmit the random access information of the first cell to the network device to which the first cell belongs based on the time-frequency resource, so as to support the terminal device 120 to access the first cell. Compared with the terminal device 120 needing to receive the SSB first and then receiving the SIB1, so as to obtain the information related to cell access, the above scheme can simplify the process of the terminal device 120 obtaining the information related to cell access, for example, the terminal device 120 does not need to receive the SIB1 again, so as to reduce the power consumption of the terminal device 120 when performing the cell access process.

[0151] One possible implementation, the terminal device 120 periodically transmits the random access information of the first cell to the network device to which the first cell belongs. For example, the terminal device 120 transmits the random access information of the first cell to the network device to which the first cell belongs after moving for a period of time.

[0152] One possible implementation, the terminal device 120 non-periodically transmits the random access information of the first cell to the network device to which the first cell belongs. For example, when the terminal device 120 moves out of the coverage range of the network device to which the first cell belongs or moves out of the tracking area, the terminal device 120 transmits the random access information of the first cell to the network device to which the first cell belongs. In this way, this can effectively reduce the energy consumption of the terminal device 120.

[0153] In a possible implementation, the first information further includes N second configuration information and identifiers of N second cells. The second configuration information is used to configure random access information of the second cells. The description of the second configuration information and the identifiers of the second cells can refer to Table 4. The content shown in Table 4 is only an example and is not limited.

[0154] Table 4

[0155] As shown in Table 4, N = 3:

[0156] The first second configuration information is configuration information 1, which is associated with cell identifier 1. The cell identifier 1 is an identifier of the first second cell and is used to identify the first second cell.

[0157] The second second configuration information is configuration information 2, which is associated with cell identifier 2. The cell identifier 1 is an identifier of the second second cell and is used to identify the second second cell.

[0158] The third second configuration information is configuration information 3, which is associated with cell identifier 3. The cell identifier 1 is an identifier of the third second cell and is used to identify the third second cell.

[0159] The first cell is a cell currently located by the terminal device, and the second cell is a neighboring cell of the first cell, or the second cell is a leading cell of the cell currently located by the terminal device.

[0160] In a possible implementation, the N second cells and the first cell can belong to the network device 110, that is, the network device 110 manages the first cell and the N second cells. In this way, the network device 110 can carry the time-frequency resources of the random access information of multiple cells in the first information. The network device 110 does not need to indicate the time-frequency resources of the random access information for each of the N second cells, which can reduce the energy consumption of the network device 110.

[0161] In another possible implementation, the N second cells and the first cell can belong to different network devices, that is, the first cell belongs to the network device 110, and part or all of the N second cells belong to the network device 220 (not shown in FIG. 1). In this way, the network device 110 can carry the time-frequency resources of the random access information of the cells managed by other network devices and the identifiers of the corresponding cells in the first information, which can reduce the energy consumption of the other network devices.

[0162] By including N second configuration information and the identification of N second cells in the first information, the network device to which the second cell belongs (may be the network device 110, or a network device different from the network device 110) does not need to send the corresponding second configuration information and the corresponding cell identification. When the terminal device 120 moves to the second cell, the terminal device 120 can send the random access information of the second cell to the network device to which the second cell belongs according to the time-frequency resource of the random access information of the second cell configured by the second configuration information in the first information. The network device to which the second cell belongs can receive the random access information of the second cell, and thus can support the terminal device 120 to randomly access the second cell.

[0163] It should be noted that when the network device to which the first cell belongs is different from the network device to which the second cell belongs, the network device to which the first cell belongs and the network device to which the second cell belong can be kept synchronized or aligned.

[0164] When the network device to which the first cell belongs is different from the network device to which the second cell belongs, the network device to which the first cell belongs and the network device to which the N second cells belong can be in the same tracking area (TA), for example, TA1. When the terminal device 120 moves to the TA1, the terminal device 120 sends the random access information of the corresponding cell to the corresponding network device according to the first configuration information or the second configuration information in the first information. The network device 110 broadcasts the configuration information (such as the first configuration information and the N second configuration information) corresponding to each cell (may include the first cell and the N second cells) in the TA1 to the terminal device 120, and other network devices (not including the network device 110) in the TA1 can not broadcast the time-frequency resource of the random access information of the cell managed by each network device, which can reduce the energy consumption of the network device.

[0165] In one possible implementation, the first information can further include the paging configuration information of the N second cells.

[0166] When the first information further includes the paging configuration information of the second cell, the terminal device 120 can receive the paging information sent by the network device to which the second cell belongs according to the paging configuration information of the second cell, and thus can support the terminal device 120 to successfully access the second cell and complete camping. In addition, the terminal device 120 does not need to receive the SIB1, which can also support reducing the power consumption of the terminal device 120.

[0167] In one possible implementation, the first information can further include the PDCCH configuration of the system message. For example, the PDCCH configuration of the SIB1, or the first information can further include the PBCH. The PBCH is used to schedule the PDCCH configuration of the SIB1.

[0168] When the first information further comprises the PDCCH configuration of the system message, the terminal device 120 can perform the reception of the system message according to the PDCCH configuration of the system message. In this way, this can support that the terminal device 120 can perform the update of the system message. Alternatively, when the network device 110 determines that the update of the system message is needed, the first information sent by the network device 110 to the terminal device 120 can further comprise the PDCCH configuration of the system message, and in this way, this is beneficial to support that the terminal device 120 can perform the update of the system message.

[0169] In summary, the present application supports that the first configuration information, the synchronization signal and the identifier of the first cell are configured in the first information, which can support that the terminal device 120 can acquire the time-frequency resource used for sending the random access information of the first cell and the synchronization signal according to the first configuration information, so as to support that the terminal device 120 can perform the cell initial access procedure with lower power consumption.

[0170] In order to implement the functions in the method provided by the present application, the terminal device 120 and the network device 110 can each include a hardware structure and / or a software module to implement the above functions in the form of hardware structure, software module, or hardware structure plus software module. Whether a certain function in the above functions is implemented in the form of hardware structure, software module, or hardware structure plus software module depends on the specific application and design constraints of the technical solution.

[0171] FIG. 4 is a schematic block diagram of a communication apparatus according to an embodiment of the present application. The communication apparatus includes a processing circuit 410 and a transceiver circuit 420, which can be connected or coupled to each other, such as through a bus 430. The communication apparatus can be the terminal device 120 or the network device 110.

[0172] Optionally, the communication apparatus can further include a memory 440. The memory 440 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a compact disc read-only memory (CD-ROM). The memory 440 is any other medium capable of carrying or storing desired program code in the form of instructions or data structures and capable of being accessed by a computer, but is not limited thereto. The memory in the embodiments of the present application can also be a circuit or any other device capable of realizing a storage function, used for storing computer programs or instructions, and / or data.

[0173] The processing circuit 410 can be all or part of one or more processors, or be one or more processors. The processor can be a central processing unit (CPU). In the case of the processing circuit 410 being a CPU, the CPU can be a single core CPU, or a multi-core CPU. The processing circuit 410 can be a signal processor, a chip, or other integrated circuits that can implement the method of the present application, or part of the foregoing processor, chip or integrated circuit for processing functions. In addition, the transceiver circuit 420 can also be a transceiver, or an input / output interface, an input / output interface for input or output of signals or data, and can also be referred to as an input / output circuit.

[0174] When the communication apparatus is the terminal device 120, the processing circuit 410 is configured to perform the following operations: receiving the first information; and sending random access information of the first cell to the network device corresponding to the first cell.

[0175] When the communication apparatus is the network device 110, the processing circuit 410 is configured to perform the following operations: determining the first information; and sending the first information.

[0176] When the communication apparatus is the terminal device 120 or the network device 110, it will be responsible for performing the methods or steps related to the terminal device 120 or the network device 110 in the foregoing method embodiments.

[0177] When the communication apparatus is the terminal device 120 or the network device 110, the transceiver circuit 420 can be a transceiver.

[0178] When the communication apparatus is a chip for the terminal device 120 or the network device 110, the transceiver circuit 420 can be an input / output circuit.

[0179] The foregoing description is only an exemplary description. The specific content can refer to the content shown in the foregoing method embodiments.

[0180] The implementation of each operation in FIG. 4 can also correspond to the description of the corresponding method embodiments shown in FIG. 2.

[0181] FIG. 5 is a schematic block diagram of another communication apparatus according to an embodiment of the present application. The communication apparatus can be the terminal device 120 or the network device 110, and is configured to implement the method related in the foregoing embodiments.

[0182] The communication apparatus includes a transceiver 510 and a processing unit 520. The transceiver 510 can include a transmitting unit and a receiving unit. The transmitting unit is configured to perform the transmitting action of the communication apparatus, and the receiving unit is configured to perform the receiving action of the communication apparatus. For the convenience of description, the transmitting unit and the receiving unit are combined into one transceiver in the embodiments of the present application. The combination is described herein, and will not be repeated hereinafter.

[0183] When the communication apparatus is the terminal device 120, the transceiver 510 is configured to receive the first information and transmit the random access information of the first cell to the network device to which the first cell belongs, and the processing unit 520 is configured to determine to transmit the random access information of the first cell to the network device to which the first cell belongs, and the like.

[0184] When the communication apparatus is the network device 110, the transceiver 510 is configured to transmit the first information, and the processing unit 520 is configured to determine the first information, and the like.

[0185] When the communication apparatus is the terminal device 120 or the network device 110, it will be responsible for performing one or more of the methods or steps related to the terminal device 120 or the network device 110 in the foregoing method embodiments.

[0186] Optionally, the communication apparatus further includes a storage unit 530 configured to store programs or codes for executing the foregoing methods.

[0187] The transceiver in FIG. 5 can correspond to the transceiver circuit in FIG. 4, and the processing unit in FIG. 5 can correspond to the processing circuit in FIG. 4.

[0188] The apparatus embodiments shown in FIGS. 4 and 5 are used to implement the content described in FIG. 2. The specific execution steps and methods of the apparatus shown in FIGS. 4 and 5 can refer to the content described in the foregoing method embodiments.

[0189] The present application also provides a chip including a processor, which is configured to call and run instructions stored in a memory, so that a communication device installed with the chip performs the method in each of the examples described above. The memory can be integrated into the chip, or located outside the chip.

[0190] The present application also provides another chip including an input interface, an output interface, and a processing circuit, wherein the input interface, the output interface, and the processing circuit are connected through internal connection paths, and the processing circuit is configured to execute codes in a memory, and when the codes are executed, the processing circuit is configured to perform the method in each of the examples described above.

[0191] Optionally, the chip further includes a memory configured to store computer programs or codes. The input interface and the output interface can be independent of each other, or can be integrated into an input / output interface.

[0192] The processing circuitry can be all or a part of one or more processors, or one or more processors.

[0193] The present application also provides a processor, which is used to be coupled with a memory, and is used to execute the method and functions of any of the above embodiments related to the network device or the terminal device.

[0194] In another embodiment of the present application, a computer program product containing instructions is provided, when the computer program product is run on a computer, the method of the above embodiments is implemented.

[0195] The present application also provides a computer program, when the computer program is run on a computer, the method of the above embodiments is implemented.

[0196] In another embodiment of the present application, a computer readable storage medium is provided, the computer readable storage medium stores a computer program, when the computer program is executed by a computer, the method of the above embodiments is implemented.

[0197] It should be understood that, in the embodiments of the present application, the processor can be a central processing unit (CPU), and the processor can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic components, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0198] In addition, the processor can include one or a combination of a central processing unit (CPU), a baseband processor, a digital signal processor (DSP), a microprocessor unit (MPU), a microcontroller unit (MCU), a graphics processing unit (GPU), a field programmable gate array (FPGA), an artificial intelligence processor (AI processor), or a neural network processor (NPU).

[0199] It should also be appreciated that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the system and method described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0200] The above-described embodiments can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, the above-described embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are wholly or partially generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center through a wired or wireless (such as infrared, wireless, microwave, etc.) manner. The computer-readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. containing one or more available medium sets. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state disk.

[0201] It should be understood that the size of the sequence number of each process described above in various embodiments of the present application does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0202] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solutions. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described here. In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0203] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e. can be located in one place or can be distributed to multiple network units. Some or all of the units can be selected to achieve the purpose of the embodiment according to actual needs. In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present alone, or two or more units can be integrated in one unit. When the above functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that make contributions to the prior art or parts of the technical solutions can be embodied in the form of software products, which are stored in a storage medium and include a number of instructions for making a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in each embodiment of the present application. The foregoing storage medium includes: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk, and various program code storage media.

[0204] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware, or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on specific applications and design constraints of the technical solutions. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

Claims

1. A communication method characterized by comprising: Applied to a terminal device, comprising: receiving first information, the first information comprising first configuration information, a synchronization signal and an identification of a first cell, the first configuration information being used for configuring time-frequency resources of random access information of the first cell; sending the random access information of the first cell on the time-frequency resources.

2. The method of claim 1, wherein, The first information further comprises paging configuration information of the first cell.

3. The method according to claim 1 or 2, characterized in that, The first information further comprises N second configuration information and the identification of N second cells, the second configuration information being used for configuring time-frequency resources of random access information of the second cells, N being a positive integer; The first cell is a cell where the terminal device is currently located, and the second cell is a neighboring cell of the first cell.

4. The method of claim 3, wherein, The first information further comprises paging configuration information of the N second cells.

5. The method according to any one of claims 1 to 4, characterized in that, The random access information of the first cell comprises at least one of identification information of the terminal device or tracking area information of the terminal device.

6. The method according to any one of claims 1 to 5, characterized in that, The first information further comprises physical downlink control channel configuration information of system messages.

7. The method according to any one of claims 1 to 6, characterized in that, The sending period of the first information is greater than 160 milliseconds.

8. The method according to any one of claims 1 to 7, characterized in that, The synchronization signal comprises a primary synchronization signal and a secondary synchronization signal.

9. A communication method characterized by comprising: Comprising: determining first information, the first information comprising first configuration information, a synchronization signal and an identification of a first cell, the first configuration information being used for configuring time-frequency resources of random access information of the first cell; sending the first information.

10. The method of claim 9, wherein, The first information further comprises paging configuration information of the first cell.

11. The method according to claim 9 or 10, characterized in that, The first information further comprises N second configuration information and the identification of N second cells, the second configuration information being used for configuring time-frequency resources of random access information of the second cells, N being a positive integer; The first cell is a cell where the terminal device is currently located, and the second cell is a neighboring cell of the first cell.

12. The method of claim 11, wherein, The first information further comprises paging configuration information of the N second cells.

13. The method according to any one of claims 9 to 12, characterized in that, The random access information of the first cell comprises at least one of identification information of the terminal device or tracking area information of the terminal device.

14. The method according to any one of claims 9 to 13, characterized in that, The first information further comprises physical downlink control channel configuration information of system messages.

15. The method according to any one of claims 9 to 14, characterized in that, The sending period of the first information is greater than 160 milliseconds.

16. The method according to any one of claims 9 to 15, characterized in that, The synchronization signal comprises a primary synchronization signal and a secondary synchronization signal.

17. A communications device, characterized by The communication device further comprises a memory for storing the computer program or instructions.

18. The communication apparatus according to claim 17, wherein The communication device further comprises a communication interface for inputting and / or outputting signals.

19. The communication apparatus according to claim 17 or 18, wherein, The communication device further comprises a communication interface for inputting and / or outputting signals.

20. A communications device, characterized by The computer readable storage medium has stored thereon computer programs or instructions which, when executed on a computer, 21. A computer-readable storage medium, characterized in that, cause the method of any one of claims 1 to 8 or 9 to 16 to be performed. The computer readable storage medium has stored thereon computer programs or instructions which, when executed on a computer, 22. A computer program product, characterised in that, cause the method of any one of claims 1 to 8 or 9 to 16 to be performed. such that the method of any one of claims 1 to 8 or 9 to 16 is performed.

23. A chip, characterized by The chip is installed in a communication device, the chip comprising a processor and a communication interface, the processor reading instructions and running through the communication interface, such that the communication device performs the method of any one of claims 1 to 16.

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