Communication method and related apparatus

Abstract

A communication method and a related apparatus, for use in improving communication efficiency. In the method, first information received by a first communication apparatus is used for paging a terminal device, and the first information can also be used for indicating N frequency domain resources. Subsequently, the first communication apparatus can receive second information on a first frequency domain resource among the N frequency domain resources. In other words, different first communication apparatuses can determine two or more frequency domain resources on the basis of a paging message, and different first communication apparatuses can receive information on the basis of different frequency domain resources among the two or more frequency domain resources. By means of said method, different first communication apparatuses can receive information by means of frequency-division multiplexing, reducing the communication interference between different communication apparatuses and improving the access capacity, thereby improving communication efficiency.

Description

Communication method and related apparatus

[0001] This application claims priority from the Chinese patent application No. 202410408303.0 filed on April 3, 2024, and entitled "A communication method and related 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 wireless communication, and in particular, to a communication method and related apparatus. BACKGROUND

[0003] Wireless communication can be transmission communication between two or more communication devices without propagation through conductors or cables. Generally, the two or more communication devices include network devices and terminal devices, or the two or more communication devices include different terminal devices.

[0004] At present, in the communication process of different communication devices, the internet of things (IoT) communication technology can reduce the complexity and power consumption of the communication device. Generally, in order to reduce the complexity of IoT communication, different terminal devices can use the same frequency domain resource for communication.

[0005] However, in the above communication process, for a certain terminal device, the frequency domain resource used by the terminal device and the frequency domain resource used by other terminal devices can be the same, which will increase the interference between the communication signals of different terminal devices, and further affect the communication efficiency. SUMMARY

[0006] The present application provides a communication method and related apparatus for reducing communication interference between different communication devices and improving access capacity, thereby improving communication efficiency.

[0007] The first aspect of the present application provides a communication method, which is executed by a first communication device. The first communication device can be a terminal device (such as a terminal device as an active tag, a terminal device as a passive tag, a terminal device as a semi-passive tag, etc.), or the first communication device can be a part of the terminal device (such as a processor, a chip or a chip system, etc.), or the first communication device can also be a logic module or software that can realize all or part of the functions of the terminal device. In the method, the first communication device receives first information, the first information being used to indicate N frequency domain resources, N being an integer greater than 1; wherein the first information is used to page the terminal device; the first communication device receives second information, the second information being carried in a first frequency domain resource in the N frequency domain resources.

[0008] Based on the above scheme, the first information received by the first communication apparatus is used for paging the terminal device, and the first information can also be used for indicating N frequency domain resources, and subsequently the first communication apparatus can receive the second information on the first frequency domain resource of the N frequency domain resources. In other words, different first communication apparatuses can determine two or more frequency domain resources based on the paging message, and different first communication apparatuses can receive information based on different frequency domain resources of the two or more frequency domain resources. In this way, different first communication apparatuses can receive information in a frequency division multiplexing manner, which can reduce communication interference between different communication apparatuses and improve access capacity, thereby improving communication efficiency.

[0009] In addition, in the process of using time division multiplexing for communication by different communication apparatuses, using different time domain resources by different communication apparatuses can increase communication delay. In the above scheme, different first communication apparatuses can receive information in a frequency division multiplexing manner, so that different first communication apparatuses can use the same or similar time domain resources for communication, which can reduce communication delay and further improve communication efficiency.

[0010] It should be noted that the first information and the second information can come from the second communication apparatus, and the first communication apparatus and the second communication apparatus can have various implementation manners.

[0011] As an example, the first communication apparatus is a terminal device, and the second communication apparatus is a network device. Correspondingly, the communication link between the first communication apparatus and the second communication apparatus can be an uplink and downlink communication link. The information (such as the first information or the second information) received by the first communication apparatus can be downlink (DL) information / signal / signaling / data, and the information (such as the third information or the sixth information described below) sent by the first communication apparatus can be uplink (UL) information / signal / signaling / data.

[0012] As another example, the first communication apparatus and the second communication apparatus are different terminal devices. Correspondingly, the communication link between the first communication apparatus and the second communication apparatus can be a sidelink communication link.

[0013] As another example, the first communication apparatus can be a tag device (the tag device can be an implementation example of a terminal device), and the second communication apparatus can be a reader. Correspondingly, the communication link between the first communication apparatus and the second communication apparatus can include a device-to-reader (DR) link and a reader-to-device (RD) link.

[0014] In this application, paging can be replaced by other terms, such as select, initial trigger, initial trigger for DL or RD, or indication, etc.

[0015] It should be understood that the N frequency domain resources can be N not completely same frequency domain resources. For example, in the frequency domain, the N frequency domain resources can be N mutually non-overlapping frequency domain resources, that is, any two frequency domain resources do not include the same subcarrier. For another example, in the frequency domain, at least two of the N frequency domain resources exist partial overlap, that is, at least two frequency domain resources include one or more same subcarriers.

[0016] It should be understood that after the first communication device determines the N frequency domain resources based on the first information, the first communication device can randomly select one frequency domain resource from the N frequency domain resources as the first frequency domain resource, or the first communication device can determine the index of the first frequency domain resource in the N frequency domain resources based on the collected information (for example, the information collected by the first communication device is the device identifier of the first communication device, and the index is one of the multiple values contained in the device identifier), or the first communication device determines the first frequency domain resource in the N frequency domain resources through other ways, which are not limited here.

[0017] In a possible implementation of the first aspect, the N frequency domain resources and the M frequency domain resources have a corresponding relationship, and N is equal to M, wherein the N frequency domain resources and the M frequency domain resources are one-to-one corresponding.

[0018] Based on the above scheme, the N frequency domain resources indicated by the first information and the M frequency domain resources have a corresponding relationship, and the N frequency domain resources and the M frequency domain resources are one-to-one corresponding. In this way, different first communication devices can send information based on the M frequency domain resources, so that different first communication devices can send information through frequency division multiplexing, which can reduce the communication interference between different communication devices and improve the access capacity, thereby improving the communication efficiency.

[0019] In a possible implementation of the first aspect, the first information is further used to indicate the corresponding relationship.

[0020] Based on the above scheme, the first information received by the first communication device can also be used to indicate the corresponding relationship between the N frequency domain resources and the M frequency domain resources, so that the first communication device can determine the M frequency domain resources based on the received first information, to realize the flexible configuration of the M frequency domain resources by the sender (for example, the second communication device) of the first information.

[0021] Optionally, the first communication device can determine the correspondence through other information than the first information, i.e., the other information can indicate the correspondence.

[0022] Optionally, the first communication device can determine the correspondence through pre-configuration, so as to save signaling overhead.

[0023] In a possible implementation of the first aspect, the first frequency domain resource corresponds to a second frequency domain resource of the M frequency domain resources, and the method further includes: the first communication device sending third information, the third information being carried in the second frequency domain resource.

[0024] Based on the above scheme, the first communication device can further determine the second frequency domain resource corresponding to the first frequency domain resource (or determine the first frequency domain resource corresponding to the second frequency domain resource) based on the correspondence between the N frequency domain resources and the M frequency domain resources. Thereafter, the first communication device can send the third information based on the second frequency domain resource, so that different first communication devices can send information through frequency division multiplexing, the communication interference between different communication devices can be reduced, the access capacity can be improved, and the communication efficiency can be improved.

[0025] In a possible implementation of the first aspect, the N frequency domain resources correspond to a third frequency domain resource, and the method further includes: the first communication device receiving fourth information, the fourth information including a parameter used to determine the third frequency domain resource.

[0026] Based on the above scheme, the N frequency domain resources indicated by the first information have a correspondence with the third frequency domain resource, and accordingly, the first communication device can further receive the fourth information and determine the third frequency domain resource based on the parameter included in the fourth information, so as to realize flexible configuration of the third frequency domain resource by a sender (e.g., a second communication device) of the fourth information.

[0027] Optionally, the first communication device can determine the third frequency domain resource through other information than the fourth information, i.e., the other information can indicate the third frequency domain resource.

[0028] Optionally, the first communication device can determine the third frequency domain resource through pre-configuration, so as to save signaling overhead.

[0029] In a possible implementation of the first aspect, the method further includes: the first communication device sending fifth information, the fifth information being carried in the third frequency domain resource.

[0030] Based on the above scheme, after determining the third frequency domain resource corresponding to the N frequency domain resources, the first communication device can further transmit fifth information based on the third frequency domain resource, so that the receiver (for example, the second communication device) of the fifth information can receive the fifth information on the third frequency domain resource matched with the N frequency domain resources.

[0031] In a possible implementation of the first aspect, the fifth information is used to indicate the first frequency domain resource.

[0032] Based on the above scheme, the fifth information transmitted by the first communication device can also be used to indicate the first frequency domain resource, so that the receiver (for example, the second communication device) of the fifth information can determine the first frequency domain resource selected by the first communication device.

[0033] In a possible implementation of the first aspect, there is a corresponding relationship between the N frequency domain resources and K frequency domain resources, K is a positive integer; before receiving the second information, the method further includes: the first communication device transmits sixth information, the sixth information is carried in a fourth frequency domain resource in the K frequency domain resources.

[0034] Based on the above scheme, the N frequency domain resources indicated by the first information have a corresponding relationship with the K frequency domain resources, and the first communication device can further transmit sixth information based on a fourth frequency domain resource in the K frequency domain resources, so that the receiver (for example, the second communication device) of the fifth information can receive the fifth information on the frequency domain resource matched with the N frequency domain resources.

[0035] Optionally, K is greater than 1. In this way, different first communication devices can transmit information based on the K frequency domain resources through frequency division multiplexing, which can reduce communication interference between different communication devices and improve access capacity, thereby improving communication efficiency.

[0036] In a possible implementation of the first aspect, the sixth information is used to indicate the first frequency domain resource.

[0037] Based on the above scheme, the sixth information transmitted by the first communication device can also be used to indicate the first frequency domain resource, so that the receiver (for example, the second communication device) of the sixth information can determine the first frequency domain resource selected by the first communication device.

[0038] In a possible implementation of the first aspect, the second information is used to indicate the fourth frequency domain resource.

[0039] Based on the above scheme, in the case that there is a corresponding relationship between the N frequency domain resources and the K frequency domain resources, there can be multiple first communication devices selecting the same frequency domain resource (for example, the first frequency domain resource) in the N frequency domain resources. Accordingly, the second information received by the first communication device can also be used to indicate the fourth frequency domain resource, so that the first communication device can determine that the second information corresponds to the first communication device that selects the fourth frequency domain resource, in order to distinguish different communication devices that select the first frequency domain resource.

[0040] In a possible implementation of the first aspect, the information (for example, the third information, the fifth information, the sixth information, or other information described above, hereinafter referred to as information 1) sent by the first communication device can include a sequence, and the length of the sequence can be used to determine the first frequency domain resource.

[0041] Based on the above scheme, after the first communication device selects the first frequency domain resource in the N frequency domain resources, the first communication device can indicate the first frequency domain resource by the sequence length of the sequence sent by the first communication device. In this way, in the scenario of frequency division multiplexing, the length of the sequence can be used to indicate the frequency domain resource selected by the first communication device, which can reduce the overhead and further improve the communication efficiency.

[0042] Optionally, the information 1 can be used for access, used for random access, and the like.

[0043] Optionally, the sequence included in the information 1 can be a random number (RN), a random number identifier, a random sequence, a random access preamble, and the like.

[0044] The second aspect of the present application provides a communication method, which is performed by a second communication device. The second communication device can be a communication device (such as a terminal device or a network device), or the second communication device can be a part of the communication device (for example, a processor, a chip, or a chip system, etc.), or the second communication device can also be a logic module or software that can realize all or part of the functions of the communication device. In the method, the second communication device sends first information, and the first information is used to indicate N frequency domain resources, where N is an integer greater than 1; wherein the first information is used to page a terminal device; and the second communication device sends second information, and the second information is carried in a first frequency domain resource in the N frequency domain resources.

[0045] Based on the above scheme, the first information sent by the second communication device is used for paging the terminal device, and the first information can also be used for indicating N frequency domain resources. Subsequently, the second communication device can receive the second information from the first communication device on a first frequency domain resource in the N frequency domain resources. In other words, different first communication devices can determine two or more frequency domain resources based on the paging message, and different first communication devices can receive information based on different frequency domain resources in the two or more frequency domain resources. In this way, different first communication devices can receive information in a frequency division multiplexing manner, which can reduce communication interference between different communication devices and improve access capacity, thereby improving communication efficiency.

[0046] In addition, in the process that different communication devices communicate using time division multiplexing, the use of different time domain resources by different communication devices can increase communication delay. In the above scheme, different first communication devices can receive information in a frequency division multiplexing manner, so that different first communication devices can communicate using the same or similar time domain resources, which can reduce communication delay and further improve communication efficiency.

[0047] It should be understood that the second communication device can receive one or more information sent to one or more first communication devices on part or all of the N frequency domain resources, where the part or all of the N frequency domain resources include the first frequency domain resource, and the one or more information includes the second information.

[0048] In a possible implementation of the second aspect, the N frequency domain resources and the M frequency domain resources have a corresponding relationship, and N is equal to M, where the N frequency domain resources and the M frequency domain resources are in one-to-one correspondence.

[0049] Based on the above scheme, the N frequency domain resources indicated by the first information have a corresponding relationship with the M frequency domain resources, and the N frequency domain resources and the M frequency domain resources are in one-to-one correspondence. In this way, different first communication devices can send information based on the M frequency domain resources, so that different first communication devices can send information in a frequency division multiplexing manner, which can reduce communication interference between different communication devices and improve access capacity, thereby improving communication efficiency.

[0050] In a possible implementation of the second aspect, the first information is also used to indicate the corresponding relationship.

[0051] Based on the above scheme, the first information sent by the second communication device can also be used to indicate the corresponding relationship between the N frequency domain resources and the M frequency domain resources, so that the first communication device can determine the M frequency domain resources based on the received first information, to realize flexible configuration of the M frequency domain resources by the sender (for example, the second communication device) of the first information.

[0052] In a possible implementation manner of the second aspect, the first frequency domain resource corresponds to a second frequency domain resource of the M frequency domain resources, and the method further includes that the second communication device receives third information, the third information being carried in the second frequency domain resource.

[0053] Based on the above scheme, the first communication device can further determine the second frequency domain resource corresponding to the first frequency domain resource (or determine the first frequency domain resource corresponding to the second frequency domain resource) based on the correspondence between the N frequency domain resources and the M frequency domain resources. Thereafter, the first communication device can send the third information based on the second frequency domain resource, so that different first communication devices can send information in a frequency division multiplexing manner, the communication interference between different communication devices can be reduced, the access capacity can be improved, and the communication efficiency can be improved.

[0054] In a possible implementation manner of the second aspect, the N frequency domain resources correspond to a third frequency domain resource, and the method further includes that the second communication device sends fourth information, the fourth information including a parameter used to determine the third frequency domain resource.

[0055] Based on the above scheme, the N frequency domain resources indicated by the first information have a correspondence relationship with the third frequency domain resource, and accordingly, the second communication device can further send the fourth information, so that after receiving the fourth information, the first communication device can determine the third frequency domain resource based on the parameter included in the fourth information, to realize flexible configuration of the third frequency domain resource by the second communication device.

[0056] In a possible implementation manner of the second aspect, the method further includes that the second communication device receives fifth information, the fifth information being carried in the third frequency domain resource.

[0057] Based on the above scheme, after determining the third frequency domain resource corresponding to the N frequency domain resources, the first communication device can further send the fifth information based on the third frequency domain resource, so that the second communication device can receive the fifth information on the third frequency domain resource matched with the N frequency domain resources.

[0058] In a possible implementation manner of the second aspect, the fifth information is used to indicate the first frequency domain resource.

[0059] Based on the above scheme, the fifth information received by the second communication device can also be used to indicate the first frequency domain resource, so that the second communication device can determine the first frequency domain resource selected by the first communication device.

[0060] In a possible implementation of the second aspect, the N frequency domain resources and the K frequency domain resources have a correspondence relationship, K being a positive integer; and before the second information is sent, the method further includes: the second communication device receiving sixth information, the sixth information being carried in a fourth frequency domain resource of the K frequency domain resources.

[0061] Based on the above scheme, the N frequency domain resources indicated by the first information have a correspondence relationship with the K frequency domain resources, and the first communication device can further send sixth information based on a fourth frequency domain resource of the K frequency domain resources, so that the second communication device can receive the fifth information on the frequency domain resources matched with the N frequency domain resources.

[0062] Optionally, K is greater than 1. In this way, different first communication devices can send information based on the K frequency domain resources in a frequency division multiplexing manner, so as to reduce communication interference between different communication devices, improve access capacity, and further improve communication efficiency.

[0063] In a possible implementation of the second aspect, the sixth information is used to indicate the first frequency domain resource.

[0064] Based on the above scheme, the sixth information received by the second communication device can also be used to indicate the first frequency domain resource, so that the second communication device can determine the first frequency domain resource selected by the first communication device.

[0065] In a possible implementation of the second aspect, the second information is used to indicate the fourth frequency domain resource.

[0066] Based on the above scheme, in the case that the N frequency domain resources and the K frequency domain resources have a correspondence relationship, it is possible that multiple first communication devices select the same frequency domain resource (for example, the first frequency domain resource) of the N frequency domain resources. Correspondingly, the second information sent by the second communication device can also be used to indicate the fourth frequency domain resource, so that the first communication device can determine that the second information corresponds to the first communication device that selects the fourth frequency domain resource, so as to distinguish different communication devices that select the first frequency domain resource.

[0067] In a possible implementation of the second aspect, the information (for example, the third information, the fifth information, the sixth information, or other information described above, hereinafter referred to as information 1) received by the second communication device can include a sequence, and the length of the sequence can be used to determine the first frequency domain resource.

[0068] Based on the above scheme, after the first communication device selects the first frequency domain resource from the N frequency domain resources, the first communication device can indicate the first frequency domain resource to the second communication device through the sequence length of the sequence sent. In this way, in the scenario of frequency division multiplexing, the length of the sequence can be used to indicate the frequency domain resource selected by the first communication device, which can reduce the overhead and further improve the communication efficiency.

[0069] Optionally, the information 1 can be used for access, used for random access, etc.

[0070] Optionally, the sequence included in the information 1 can be a random number, a random sequence, a random access preamble, etc.

[0071] The third aspect of the present application provides a communication device, which is a first communication device, the device comprising a transceiver unit and a processing unit; the transceiver unit is configured to receive first information, the first information being used to indicate N frequency domain resources, N being an integer greater than 1; wherein the first information is used to page a terminal device; the processing unit is configured to determine a first frequency domain resource from the N frequency domain resources; the transceiver unit is further configured to receive second information, the second information being carried in the first frequency domain resource from the N frequency domain resources.

[0072] In the third aspect of the present application, the component modules of the communication device can also be used to perform the steps performed in the various possible implementation manners of the first aspect and achieve the corresponding technical effects, which can be referred to the first aspect for details and will not be described here.

[0073] The fourth aspect of the present application provides a communication device, which is a second communication device, the device comprising a transceiver unit and a processing unit, the processing unit being configured to determine first information; the transceiver unit is configured to send the first information, the first information being used to indicate N frequency domain resources, N being an integer greater than 1; wherein the first information is used to page a terminal device; the processing unit is further configured to determine second information; the transceiver unit is further configured to send the second information, the second information being carried in the first frequency domain resource from the N frequency domain resources.

[0074] In the fourth aspect of the present application, the component modules of the communication device can also be used to perform the steps performed in the various possible implementation manners of the second aspect and achieve the corresponding technical effects, which can be referred to the second aspect for details and will not be described here.

[0075] The fifth aspect of the present application provides a communication device comprising at least one processor, the at least one processor being configured to execute programs or instructions to enable the device to implement the method described in any one of the possible implementation manners of any one of the preceding first aspect to second aspect. Optionally, the communication device can comprise the memory.

[0076] Optionally, the at least one processor is coupled with a memory for storing the above-mentioned program or instruction.

[0077] Optionally, the communication apparatus further comprises the memory.

[0078] The sixth aspect of the present application provides a communication apparatus, comprising at least one logic circuit and an input / output interface; the logic circuit is configured to perform the method in any possible implementation manner of any one of the preceding first aspect to the second aspect.

[0079] The seventh aspect of the present application provides a communication system, comprising the first communication apparatus and a second communication apparatus.

[0080] The eighth aspect of the present application provides a computer readable storage medium, configured to store one or more computer-executable instructions, when the computer-executable instructions are executed by a processor, the processor performs the method in any possible implementation manner of any one of the preceding first aspect to the second aspect.

[0081] The ninth aspect of the present application provides a computer program product (or computer program), when the computer program in the computer program product is executed by the processor, the processor performs the method in any possible implementation manner of any one of the preceding first aspect to the second aspect.

[0082] The tenth aspect of the present application provides a chip or chip system, comprising at least one processor, configured to support the communication apparatus to perform the method in any possible implementation manner of any one of the preceding first aspect to the second aspect. For example, the chip can be a baseband chip, a modem chip, a system on chip (SoC) chip containing a modem core, a system in package (SIP) chip, or a communication module, etc.

[0083] In a possible design, the chip or chip system can further comprise a memory, configured to store necessary program instructions and data of the communication apparatus. The chip system can be composed of a chip, or can comprise a chip and other discrete devices. Optionally, the chip system further comprises an interface circuit, configured to provide program instructions and / or data for the at least one processor.

[0084] The technical effects brought by any one of the third aspect to the tenth aspect can be referred to the technical effects brought by different design manners of the first aspect to the second aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0085] Fig. 1a to Fig. 1c are some schematic diagrams of the communication system provided by the present application;

[0086] Fig. 2a to Fig. 2e are some schematic diagrams of the communication system provided by the present application;

[0087] Fig. 3 is some schematic diagrams of the communication process involved by the present application;

[0088] Fig. 4, Fig. 5, Fig. 6a, Fig. 6b, Fig. 7 are some schematic diagrams of the communication method provided by the present application;

[0089] Fig. 8 to Fig. 11 are some schematic diagrams of the communication device provided by the present application. DETAILED DESCRIPTION

[0090] First, some terms in the embodiments of the present application are explained to facilitate the understanding of those skilled in the art.

[0091] (1) Terminal device: can be a wireless terminal device capable of receiving network device scheduling and indication information, the wireless terminal device can be a device that provides voice and / or data connectivity to a user, or a handheld device with wireless connection function, or other processing devices connected to a wireless modem.

[0092] A terminal device can communicate with one or more core networks or the Internet via a radio access network (RAN), and the terminal device can be a mobile terminal device, such as a mobile phone (or called "cellular" phone, mobile phone), a computer, and a data card, for example, which can be a portable, pocket, hand-held, computer- built-in, or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a Pad, a computer with wireless transceiver function, and the like. The wireless terminal device can also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station (MS), a remote station, an access point (AP), a remote terminal, an access terminal, a user terminal, a user agent, a subscriber station (SS), customer premises equipment (CPE), a terminal, user equipment (UE), a mobile terminal (MT), and the like.

[0093] By way of example and not limitation, in embodiments of the present application, the terminal device can also be a wearable device. The wearable device can also be referred to as a smart wearable device or a smart wearable device, etc., which is a general term for devices that can be designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing, and shoes, etc. The wearable device is a portable device that can be directly worn on the body or integrated into the user's clothes or accessories. The wearable device is not only a hardware device, but also a powerful function realized through software support and data interaction, cloud interaction. The broad sense of wearable smart devices includes full-featured, large-sized devices that can realize complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and devices that focus on a certain application function and need to be used with other devices such as smart phones, such as various smart wristbands, smart helmets, smart jewelry, etc.

[0094] The terminal can also be a drone, a robot, a terminal in device-to-device (D2D) communication, a terminal in vehicle to everything (V2X), 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 remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc.

[0095] In addition, the terminal device can also be a terminal device in a communication system evolved after the 5th generation (5G) communication system (such as a 6th generation (6G) communication system, etc.) or a terminal device in a future evolved public land mobile network (PLMN), etc. For example, the 6G network can further expand the form and function of the 5G communication terminal, and the 6G terminal includes but is not limited to vehicles, cellular network terminals (with satellite terminal functions), drones, internet of things (IoT) devices.

[0096] In the embodiments of the present application, the terminal device can also obtain an artificial intelligence (AI) service provided by the network device. Optionally, the terminal device can also have AI processing capability.

[0097] (2) Network device: can be a device in a wireless network, for example, the network device can be a RAN node (or device) for accessing the terminal device to the wireless network, which can also be referred to as a base station. At present, some examples of RAN devices are: base station (base station, BS), evolved NodeB (eNodeB), base station gNB (gNodeB) in 5G communication system, transmission reception point (transmission reception point, TRP), evolved Node B (eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), home base station (for example, home evolved Node B, or home Node B, HNB), baseband unit (baseband unit, BBU), or wireless fidelity (wireless fidelity, Wi-Fi) access point AP, etc. In addition, in a network structure, the network device can include a centralized unit (centralized unit, CU) node, or a distributed unit (distributed unit, DU) node, or a RAN device including a CU node and a DU node.

[0098] Optionally, the RAN node can also be a macro base station, a micro base station or an indoor station, a relay node or a donor node, or a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario. The RAN node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in vehicle to everything (vehicle to everything, V2X) technology can be a road side unit (road side unit, RSU).

[0099] In another possible scenario, multiple RAN nodes cooperate to assist a terminal to implement wireless access, and different RAN nodes respectively implement part of functions of a base station. For example, a RAN node can be a CU, a 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 configured, or can be included in the same network element, such as a 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 unit (AAU), or a remote radio head (RRH).

[0100] In different systems, the CU (or CU-CP and CU-UP), the DU, or the RU can also have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (O-RAN or 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, the CU-CP, the CU-UP, the DU, and the RU are taken as examples for description in this application. Any one of the CU (or the CU-CP, the CU-UP), the DU, and the 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.

[0101] The communication between the access network device and the terminal device follows a certain protocol layer structure. The protocol layer can include a control plane protocol layer and a user plane protocol layer. The control plane protocol layer can include at least one of the following: a radio resource control (RRC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a media access control (MAC) layer, or a physical (PHY) layer, etc. The user plane protocol layer can include at least one of the following: a service data adaptation protocol (SDAP) layer, a PDCP layer, an RLC layer, a MAC layer, or a physical layer, etc.

[0102] For the correspondence between the network elements in the ORAN system and the protocol layer functions that can be implemented by the network elements, refer to Table 1 below.

[0103] Table 1

[0104] The network device can be another device that provides a wireless communication function for the terminal device. Embodiments of the present application do not limit the specific technology and specific device form adopted by the network device. For the convenience of description, embodiments of the present application do not limit.

[0105] The network device can also include a core network device, for example, a mobility management entity (MME) in a fourth generation (4G) network, a home subscriber server (HSS), a serving gateway (S-GW), a policy and charging rules function (PCRF), a public data network gateway (P-GW), a network element such as an access and mobility management function (AMF) in a 5G network, a user plane function (UPF), or a session management function (SMF). In addition, the core network device can also include other core network devices in the 5G network and the next generation network of the 5G network.

[0106] In the embodiments of the present application, the network device described above can also be an AI-capable network node, which can provide AI services for terminals or other network devices, for example, AI nodes, computing power nodes, AI-capable RAN nodes, AI-capable core network elements, etc. on the network side (access network or core network).

[0107] In the embodiments of the present application, the 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, which can be installed in the network device. In the technical solutions provided in the embodiments of the present application, the device for implementing the function of the network device is taken as an example to describe the technical solutions provided in the embodiments of the present application.

[0108] (3) Configuration and pre-configuration: in this application, configuration and pre-configuration will be used at the same time. Among them, configuration refers to that the network device and / or server sends some parameter configuration information or parameter values to the terminal through messages or signaling, so that the terminal determines the communication parameters or resource in transmission according to the values or information. Pre-configuration is similar to configuration, which can be the parameter information or parameter value agreed by the network device and / or server and the terminal device in advance, or the parameter information or parameter value adopted by the base station / network device or terminal device specified in the standard protocol, or the parameter information or parameter value pre-stored in the base station and / or server or terminal device. This application does not limit it.

[0109] Further, these values and parameters can be changed or updated.

[0110] (4) The terms "system" and "network" in the embodiments of the present application can be used interchangeably. "Multiple" means two or more. "And / or" describes the association between the associated objects, which means that there can be three relationships, for example, A and / or B, which means that A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects. "At least one of the following" or similar expressions means any combination of these items, including any combination of single item or multiple items. For example, "at least one of A, B and C" includes A, B, C, AB, AC, BC or ABC. In addition, unless otherwise specified, the ordinal numbers "first", "second", etc. mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, time sequence, priority or importance of multiple objects.

[0111] (5) In the embodiments of the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, or indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, or indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface.

[0112] In other words, sending and receiving can be carried out between devices, for example, between network devices and terminal devices, or within devices, for example, between components, modules, chips, software modules or hardware modules within devices through buses, wires or interfaces.

[0113] It can be understood that the information can be processed, such as encoding and modulation, between the source end and the destination end of the information transmission, but the destination end can understand the effective information from the source end. Similar expressions in this application can be similarly understood, and will not be repeated here.

[0114] (6) In the embodiments of the present application, “indication” can include direct indication and indirect indication, and can also include explicit indication and implicit indication. The information indicated by certain information (indication information described below) is referred to as to-be-indicated information. In the 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, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only by a 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 be achieved by means of the arrangement order of each information agreed in advance (for example, protocol predefined), thereby reducing the indication overhead to a certain extent. The present application does not limit the specific manner of indication. It can be understood that for the sender of the indication information, the indication information can be used to indicate the to-be-indicated information, and for the receiver of the indication information, the indication information can be used to determine the to-be-indicated information.

[0115] In the present application, the same or similar parts of each embodiment can be mutually referred to, unless otherwise specified. In the various embodiments of the present application, and the various methods / designs / implementation manners in each embodiment, the terms and / or descriptions of different embodiments, and the various methods / designs / implementation manners in each embodiment are consistent and can be mutually referred to, unless otherwise specified and logically conflicted. The technical features of different embodiments, and the various methods / designs / implementation manners in each embodiment can be combined to form new embodiments, methods, or implementation manners according to their inherent logical relationship. The implementation manners of the present application described below do not constitute a limitation on the protection scope of the present application.

[0116] The present application can be applied to a long term evolution (LTE) system, a new radio (NR) system, or a communication system evolved after 5G (such as 6G, etc.). The communication system includes at least one network device and / or at least one terminal device.

[0117] FIG. 1a is a schematic diagram of a communication system according to an example of the present disclosure. In FIG. 1a, a network device 101 and six terminal devices are shown as an example, which are terminal device 102, terminal device 103, terminal device 104, terminal device 105, terminal device 106 and terminal device 107. In the example shown in FIG. 1a, the terminal device 102 is taken as a vehicle, the terminal device 103 is taken as a smart air conditioner, the terminal device 104 is taken as a smart refueling machine, the terminal device 105 is taken as a mobile phone, the terminal device 106 is taken as a smart tea cup, and the terminal device 107 is taken as a printer.

[0118] It should be noted that FIG. 1a is an example of a communication system provided by the present disclosure. In the method embodiments provided by the present disclosure, the second communication device can be the network device (or a module of the network device) shown in FIG. 1a, and the first communication device can be any terminal device (or a module of any terminal device) shown in FIG. 1a; or the first communication device can be any terminal device (or a module of any terminal device) shown in FIG. 1a, and the first communication device can be another terminal device (or a module of another terminal device) shown in FIG. 1a.

[0119] In addition, the second communication device and the first communication device involved in the present disclosure are not limited to the communication scenario shown in FIG. 1a. The communication scenario involved in the present disclosure will be further described below in combination with more drawings.

[0120] FIG. 1b is a schematic diagram of an application framework involving a RIC module under an O-RAN architecture. As shown in FIG. 1b, the communication system includes a RAN intelligent controller (RIC). The RIC includes a near-real time RIC (near-RT RIC) and a non-real time RIC (Non-RT RIC).

[0121] As an example, the near-RT RIC in FIG. 1b is used for model training and inference. For example, an AI model is trained, and inference is performed using the AI model. The near-RT RIC can obtain network side and / or terminal side information from RAN nodes (such as CUs, CU-CPs, CU-UPs, DUs and / or RUs) and / or terminals. The information can be used as training data or inference data. Optionally, the near-RT RIC can submit inference results to the RAN nodes and / or terminals. Optionally, the inference results can be exchanged between the CUs and the DUs, and / or between the DUs and the RUs. For example, the near-RT RIC submits the inference results to the DUs, and the DUs send the inference results to the RUs.

[0122] As another example, the non-real-time RIC in FIG. 1b is used for model training and inference. For example, the AI model is trained and inference is performed using the AI model. The non-real-time RIC can obtain network side and / or terminal side information from the RAN node (e.g., CU, CU-CP, CU-UP, DU, and / or RU) and / or the terminal. The information can be used as training data or inference data, and the inference result can be delivered to the RAN node and / or the terminal. Optionally, the inference result can be exchanged between the CU and the DU, and / or between the DU and the RU, for example, the non-real-time RIC delivers the inference result to the DU, and the DU sends it to the RU.

[0123] As another example, the near-real-time RIC in FIG. 1b can also be separately provided as a network element. Optionally, the near-real-time RIC and the non-real-time RIC can also be part of other devices, for example, the near-real-time RIC is provided in the RAN node (e.g., CU, DU), and the non-real-time RIC is provided in the operation, administration and maintenance (OAM), cloud server, core network device, or other network device.

[0124] FIG. 1c shows an example diagram of an O-RAN system, which can include other components in addition to those shown in the figure. As shown, the access network device (RAN, which can be an eNB or gNB or next-generation access network device) communicates with the core network (CN) through a backhaul link and communicates with the UE through an air interface.

[0125] In a possible implementation, the present application can be applied to LTE wireless communication systems, NR wireless communication systems, and future evolved NR wireless communication systems. For example, the present application can be applied to orthogonal frequency division multiplexing (OFDM) systems in LTE, OFDM systems in NR, and future OFDM systems and OFDM-like systems, etc. The service scenarios involved in the present application can include backscatter communication, passive Internet of Things communication, ambient Internet of Things (A-IoT) service scenarios, etc. in NR communication systems (or next-generation communication systems of NR).

[0126] Generally, the communication device in the A-IoT scenario includes a network device and a first type of terminal device, or in other words, the A-IoT-based communication system includes a network device and a first type of terminal device. The first type of terminal device can be a device having the function of an A-IoT terminal device. In this case, both the reader / writer and the A-IoT terminal device can be implemented based on the infrastructure in the cellular network. In other words, both the reader / writer and the A-IoT terminal device can be devices in the cellular network. For example, the function of the reader / writer can be implemented by a network device, such as a base station. The A-IoT terminal device can be implemented by a terminal in the cellular network, such as an extremely low power consumption, extremely low complexity Internet of Things terminal, i.e., a first type of terminal. Non-contact data communication can be performed between the network device and the first type of terminal, so as to read information from the first type of terminal and / or write information to be stored into the first type of terminal. The A-IoT technology can be used to implement one or more of the following services: inventory, positioning, sensing, and command. It can be understood that the command service can be a service for implementing a write flow or a lock flow. For the application range, the A-IoT technology can be applied to scenarios such as logistics, warehousing, industrial manufacturing, identity recognition, and environmental monitoring.

[0127] Optionally, the extremely low power consumption, extremely low complexity Internet of Things technology defined by the 3GPP plenary can be understood as an extension of RFID in 3GPP. Although RFID and the A-IoT technology have some principles in common, such as a similar inventory service flow, more value-added scenarios are introduced in the A-IoT technology.

[0128] Optionally, the A-IoT is based on the communication infrastructure of the cellular network, and is composed of a reader / writer (such as a base station) and a passive / semi-passive / active A-IoT terminal (the A-IoT terminal is a terminal in the cellular network, and can be understood as an extremely low power consumption, extremely low complexity Internet of Things terminal). The main services include inventory, positioning, sensing, and command. The typical application scenarios include logistics, warehousing, industrial manufacturing, identity recognition, and environmental monitoring.

[0129] Exemplarily, the above services include one or more of the following features:

[0130] 1. The inventory service is to access the A-IoT terminal (A-IoT terminal device) in the coverage range by using the reader / writer (which can be a base station / terminal), and the device successfully accessed needs to send its unique identifier (which can be recognized by the network, such as the EPC in RFID) to the reader / writer.

[0131] 2. The positioning is to position the position of the A-IoT terminal by using some positioning signals.

[0132] 3. The sensing is to report the sensing data, such as temperature data, of the A-IoT terminal to the base station.

[0133] 4. The command can be some operation instructions, such as write, lock, Write write process: that is, BS sends a downlink instruction and data, instructing A-IoT terminal to write data into its own memory area; Lock process: send a downlink instruction to let A-IoT terminal lock the position of the memory area specified address address, the content of the memory area cannot be changed and / or cannot be read.

[0134] Optionally, the terminal device in A-IoT can include three categories:

[0135] Device A (similar to the passive A-IoT terminal described below): no energy storage, no independent signal generation / amplification, i.e. backscattering transmission.

[0136] Device B (similar to the semi-passive AIoT terminal described below): has energy storage function, no independent signal generation capability, i.e. backscattering transmission mode. The stored energy can be used for amplification of reflected signals (Has energy storage, no independent signal generation, i.e. backscattering transmission. Use of stored energy can include amplification for reflected signals).

[0137] Device C (similar to the active AIoT terminal described below): has energy storage and has independent signal generation capability, that is, contains active RF components for transmission (Has energy storage, has independent signal generation, i.e. active RF components for transmission).

[0138] In addition, with the increasing application of machine type communication (MTC) and internet of things (IoT) communication, the number of IoT devices is growing day by day. Therefore, the industry is increasingly demanding the reduction of the cost and power consumption of IoT devices, and AIoT technology can use passive or near-passive technology to realize data transmission, which can further reduce the demand for energy compared to traditional IOT technology. In the following, the communication process of the AIoT scenario will be described by way of example in combination with more drawings.

[0139] In the example shown in FIG. 2a, it is a schematic diagram of a communication topology (denoted as topology 1) for an AIoT scenario. In topology 1, the second communication device can be a BS, and the first communication device can be an AIoT device. Among them, the Ambient IoT device directly communicates with the BS in both directions. The communication between the BS and the AIoT device includes AIoT data and / or signaling. This topology includes BSs transmitting to AIoT devices and BSs receiving from AIoT devices, that is, there is uplink and downlink data / signaling between the BS and the AIoT device.

[0140] In the example shown in FIG. 2b, it is a schematic diagram of a communication topology (denoted as topology 2) for an AIoT scenario. In topology 2, the second communication device can be a BS, and the first communication device can be an AIoT device. Among them, the AIoT device communicates with the intermediate node between the device and the BS in both directions. In this topology, the intermediate node can be a repeater, an integrated access and backhaul (IAB) node, a UE, a repeater, etc., which can realize the AIoT communication process. The intermediate node transmits AIoT data and / or signaling between the BS and the AIoT device.

[0141] In the examples shown in FIGS. 2c and 2d, it is a schematic diagram of a communication topology (denoted as topology 3) for an AIoT scenario. In topology 3, the second communication device can be a BS, and the first communication device can be an AIoT device. Among them, as shown in FIG. 2c, the AIoT device transmits data / signaling to the BS and receives data / signaling from the assisting node; or as shown in FIG. 2d, the AIoT device receives data / signaling from the BS and transmits data / signaling to the assisting node. In this topology, the assisting node can be a repeater, an IAB, a UE, a repeater, etc., which can realize the internet of things.

[0142] In the example shown in FIG. 2e, a schematic diagram of a communication topology (denoted as Topology 4) for an AIoT scenario. In Topology 4, the second communication device can be a UE, and the first communication device can be an AIoT device. In Topology 4, the AIoT device communicates with the UE in both directions. The communication between the UE and the AIoT device includes AIoT data and / or signaling.

[0143] It should be noted that in each of the above examples, the BS can be an access network device (e.g., can be an eNB or a gNB or a next generation access network device).

[0144] It should be noted that in each of the above examples, the functions of the network elements / modules involved are as follows.

[0145] AIoT terminal, electronic AIoT terminal, i.e., RFID AIoT terminal, is the common name of RFID. RFID is the abbreviation of Radio Frequency Identification (Radio Frequency Identification). RFID technology can be divided into active, passive and semi-active. The passive AIoT terminal can also be called passive IOT, i.e., passive Internet of Things device. Therefore, it can also be regarded as a terminal.

[0146] Reader / writer, a device that reads (and sometimes writes) AIoT terminal information, which is the original definition. It can also be understood as a device that communicates with the AIoT terminal, which can be a terminal, a base station, or a headend, pRU, TRP (transmission reception point), or a node that transmits signals, or a device with read-write function. It can also be an IAB (integrated access and backhaul) node or a smart repeater or a relay node.

[0147] Helper / excitation source: can be a terminal, or a base station or small station, the device only has downlink between the AIoT terminal and the reader / writer, and has uplink and downlink data transmission between the reader / writer, which can be through the air interface or through a wired connection.

[0148] (The following is an O-RAN related network element)

[0149] Service Management and Orchestration framework (SMO): its function is similar to network management.

[0150] Non-Real Time RAN Intelligent Controller (Non-RT RIC): for non-real time intelligent management of RAN. It can implement AI / ML workflow including model training and model updating, and guide applications / functions in Near-RT RIC based on policies. Non-RT RIC is located in the SMO module.

[0151] Near-Real Time RAN Intelligent Controller (Near-RT RIC): for near-real time intelligent management of RAN. Through data collection and related operations on the E2 interface, it realizes near-real time control and optimization of modules and resources of O-RAN.

[0152] O-RAN Central Unit (O-CU): to implement RRC layer, PDCP layer, and SDAP layer and other control functions in 3GPP standards.

[0153] O-RAN Distributed Unit (O-DU): based on low-layer function splitting, to implement RLC layer, MAC layer, and Higher Physical Layer (Higher PHY) in 3GPP standards. The Higher Physical Layer functions include one or more of the following: Forward Error Correction (FEC) encoding / decoding, scrambling / descrambling, or modulation / demodulation.

[0154] O-RAN Cloud (O-Cloud): as a cloud computing platform, including physical infrastructure nodes, to host O-RAN functions such as RIC, O-DU, etc.; supporting software components (such as operating systems, virtual machine monitors, container runtimes), management and orchestration functions.

[0155] Currently, in a wireless communication system (e.g., the communication system shown in any of FIG. 1a to FIG. 1c, FIG. 2a to FIG. 2e), the IoT communication technology can reduce the complexity and power consumption of the communication device in the communication process of different communication devices. As an example, in a system based on IoT communication technology, if a device is a tag device, the system can be referred to as a passive radio frequency identification (RFID) communication system. Generally, an RFID system includes a reader and a tag device, and the reader reads information in the tag device or writes information required to be stored in the tag device to the tag device. Non-contact data communication is performed between the reader and the tag device. The tag device has a simple function and needs to rely on the excitation of the reader to send information, that is, the tag device converts the wireless signal transmitted by the reader into energy and uses the energy to drive itself to work. The tag supports micro-watt or hundred-micro-watt power consumption and generally cannot support complex design.

[0156] Optionally, if the RFID is applied to a mobile communication system, for example, applied to a 5G system, the base station can act as a reader and implement the function of the reader. Currently, the RFID technology can be used to identify targets. The RFID system generally includes an interrogator and an electronic tag. The interrogator can interact with the electronic tag to manage the electronic tag.

[0157] Generally, the main application scenario of RFID is identity recognition, and further can be used for data reading and writing. In addition, the tag has the following characteristics:

[0158] 1. The tag design is simple, and the application layer and air interface signaling are designed together;

[0159] 2. The tag supports micro-watt or hundred-micro-watt power consumption and cannot support complex design and complex measurement;

[0160] 3. When multiple tags communicate, time division multiplexing is used, and multiple tags use serial reading mode. The frequency domain and code domain are not supported, and the parallel performance is poor.

[0161] In addition, the RFID tag has a low power consumption feature, and the power consumption of different types of tags is introduced as follows:

[0162] Passive tag: about 1 microwatt (μW) level power consumption, the passive tag itself has no energy storage capability, the energy of receiving and sending signals is entirely derived from the radio frequency energy of the reader; uplink transmission needs to rely on reflection communication, the reader needs to send a carrier signal to trigger the passive tag to send a reflection signal, and the radio frequency energy is used to send the uplink signal to the reader;

[0163] Semi-passive tag: about 100 μW level power consumption, compared with the passive tag, the semi-passive tag can store a part of energy (such as using a capacitor), so the transmission power consumption can be greater than that of the passive tag, and the communication also relies on reflection communication, but the communication capability is stronger than that of the passive tag (transmission rate, etc.);

[0164] Active tag: about 50 mW power consumption, the active tag itself has a battery, which can actively send signals and does not rely on reflection signals for communication, and has stronger communication capability.

[0165] Generally, in order to reduce the complexity of IoT communication, different terminal devices can use the same frequency domain resource for communication. For example, in the process of communication between a plurality of terminal devices and a network device, the network device can use different time domain resources to communicate with different terminal devices on the same frequency domain resource through time division multiplexing.

[0166] The following will take the RFID workflow as an example, and combine the process shown in FIG. 3 to exemplarily describe the above-mentioned time division multiplexing communication process. As shown in FIG. 3, the following steps are included.

[0167] Step 1. The reader sends a select message to the tag device. The select message is used to select a group of tags.

[0168] Exemplarily, the select message can carry one or more of the following information: inventory session (inventorySession) information, action information, mask information, etc.

[0169] In addition, in step 1, the tag device that receives the select message can be matched based on the select message. For example, assuming that the "inventorySession information" carried by the select message indicates session S0, the action information takes the value of 0, and the mask information matches the information of the tag device itself, the tag device sets the flag of session S0 to A.

[0170] Step 2. The reader sends a query (Query) message to the tag device.

[0171] For example, the Query message can carry at least one of a Q (Q is a positive integer) value, inventory session information, a flag bit. The Q value can be determined or adjusted by the reader in various ways, such as initially defaulting or preconfiguring a Q value, and subsequently adjusting the Q value according to the collision / idle / success of each time slot, such as too many collision time slots, indicating that the Q value is too small, and the Q value can be adjusted to a larger value. Alternatively, the reader can generate the Q value according to the number of tag devices expected to access. Alternatively, the reader can determine the Q value according to the indication of the core network or server.

[0172] For example, assuming that the Query message indicates "session S0, flag bit A", when the session of the tag device matches the flag bit, a random number of 0~2^Q-1 is randomly generated according to Q as the initial value of the counter.

[0173] Optionally, after step 2, if the value of the counter generated by the tag device is 0, the tag device performs step 3.

[0174] Optionally, after step 2, if the value of the counter generated by the tag device is not 0, the tag device will not send the response corresponding to the Query message to the reader. Correspondingly, the reader will perform the process of step 2a once or more.

[0175] In step 2a, the reader sends a Query repeat (QueryRep) message to the tag device. Correspondingly, after receiving the QueryRep message, the tag device updates the value of the counter maintained by itself based on the following manner:

[0176] Counter = Counter-1.

[0177] Through this updating manner, until the value of the counter maintained by the tag device is 0, the tag device performs step 3.

[0178] Step 3. The tag device sends a random number to the reader.

[0179] Wherein, RN can be understood as the response of the Query message. For example, RN can be a 16-bit, 8-bit random number used for contention resolution.

[0180] Step 4. The reader sends an ACK to the tag device based on the RN received in step 3.

[0181] For example, after receiving the RN in step 3, if the reader determines that there is no collision (for example, the reader has only received the RN sent by one tag), the reader feeds back an acknowledge (ACK), and the ACK contains the RN received by the reader, indicating that the contention resolution is successful.

[0182] Step 5. The tag device sends an electronic product code (EPC) to the reader based on the ACK received in step 4.

[0183] Optionally, if the RN contained in the ACK received by the tag device in step 4 is different from the RN sent by the tag device in step 3, the tag device does not send the EPC.

[0184] Step 6. The reader sends a QueryRep message to the tag device based on the EPC received in step 5.

[0185] It should be understood that, for the tag device sending the EPC in step 5, the case where the tag device receives the QueryRep message in step 6 indicates that the data transmission is successful, and the flag bit is flipped from A to B. For example, the flag bit can be used to prevent a tag that has been inventoried from being inventoried repeatedly, because a Query carrying the flag bit A that is sent subsequently will not be responded to by the tag that has received the flag bit A after being flipped.

[0186] As can be seen from the above process, the RFID tag is simple to implement and does not support complex measurements. Moreover, as can be seen from step 2 and the implementation process of one or more steps 2a, each Query message or each QueryRep message allows only one tag device to access the reader, that is, different tag devices communicate with the reader based on time division multiplexing. The Query message and the QueryRep message are respectively carried in different time domain units (such as time slots, symbols, subframes, etc.). Generally, the last QueryRep message is not used for access but is used to indicate the end of the current round of communication process. Therefore, in theory, in the process shown in FIG. 3, the communication process in 2^Q time domain units supports 2^Q tag devices accessing the reader, which will cause the problem of low communication efficiency.

[0187] For example, in the process shown in FIG. 3, in order to reduce the complexity of each tag device as much as possible, different tag devices will receive signals on the same frequency domain resource or send signals on the same frequency domain resource (for example, different tag devices will receive the ACK in step 4 or the QueryRep message in step 6 on the same frequency domain resource). Therefore, for a certain tag device, the frequency domain resource used by the tag device and the frequency domain resource used by other tag devices can be the same, which will cause the interference between the communication signals of different tag devices to increase, causing the number of tag devices supported by the reader to access to be small, and thus affecting the communication efficiency.

[0188] For example, in the process shown in FIG. 3, different tag devices use time division multiplexing to communicate, which will cause the time domain resources available to a single tag device to decrease, causing the communication delay to increase, thereby affecting the communication efficiency.

[0189] Referring to FIG. 4, an example of a communication method provided by the present application is shown, which includes the following steps.

[0190] It should be noted that the first communication device and the second communication device are used as an example of the execution subject of the interaction in FIGS. 4-7, but the present application does not limit the execution subject of the interaction. For example, in FIGS. 4-7, the execution subject of the method can be replaced by a chip, a chip system, a processor, a logic module, or software in a communication device.

[0191] S401. The second communication device sends first information, and the first communication device receives the first information. The first information is used for paging a terminal device, and the first information is used to indicate N frequency domain resources, where N is an integer greater than 1.

[0192] Optionally, the first communication device can determine the N frequency domain resources in other ways. For example, the first communication device can determine the N frequency domain resources in a standard / protocol preconfigured manner. For another example, the first communication device can determine the N frequency domain resources based on a configuration of a network device (which is different from the second communication device). In other words, the first information sent by the second communication device in step S401 (i.e., the first information received by the first communication device) can or can not contain an indication of the N frequency domain resources, which is not limited here.

[0193] For example, the first information can indicate the N frequency domain resources through one or more parameters. For example, the parameters contained in the first information can indicate the frequency information / frequency domain position / frequency point position of one or more frequency domain resources in the N frequency domain resources. For another example, the parameters contained in the first information can indicate the frequency shift between one or more frequency domain resources in the N frequency domain resources and a default frequency domain position (or a preconfigured frequency domain position).

[0194] S402. The second communication device sends second information, and the first communication device receives the second information. The second information is carried in a first frequency domain resource in the N frequency domain resources.

[0195] It should be noted that the first communication device and the second communication device can have various implementation manners.

[0196] As an example, the first communication device is a terminal device, and the second communication device is a network device. Correspondingly, the communication link between the first communication device and the second communication device can be an uplink / downlink communication link. Wherein, the information (e.g. the first information or the second information, etc.) received by the first communication device can be downlink information / signal / signaling / data, etc., and the information (e.g. the third information or the sixth information, etc. described later) sent by the first communication device can be uplink information / signal / signaling / data, etc.

[0197] As another example, the first communication device and the second communication device are different terminal devices. Correspondingly, the communication link between the first communication device and the second communication device can be a sidelink communication link.

[0198] As another example, the first communication device can be a tag device, and the second communication device can be a reader. Correspondingly, the communication link between the first communication device and the second communication device can include a device-reader link and a reader-device link. Wherein, the reader can be a network device or a terminal device.

[0199] In this application, the paging can be replaced by other terms, such as select, initial trigger, initial trigger for DL or RD, or indication, etc. In other words, the first information can be a paging message, a select message, an initial (DL / RD) trigger message, an indication message, etc. Taking the process shown in FIG. 3 as an example, the first communication device can be a tag device as shown in FIG. 4, and correspondingly, the first information can be a select message as shown in FIG. 3.

[0200] As an example, the first information is used for paging, and the first information can be a paging message / signaling / information.

[0201] Optionally, taking the first information as a paging message as an example, the paging message can be used to indicate a device to access a reader. For example: when the reader is an access network device, the paging message can be used to indicate the device to access the network (through the access network device); when the reader is a terminal device, the paging can be used to indicate the device to access the terminal device; optionally, the device can access the network through the terminal device.

[0202] Optionally, taking the first information as a paging message as an example, the paging message can be used to trigger / indicate the device to send uplink data, or to trigger / indicate / request the device to perform a first service, wherein the first service can include at least one of the following: a paging service, an inventory service, a command service (such as read, write, deactivate, lock, etc.), a positioning service, a sensing service.

[0203] Optionally, taking the first information as a paging message as an example, the paging message can be referred to as a (initial) DL trigger message, which can be triggered by a core network element (such as an AMF network element, an ambient IoT management function (AIoTMF) network element, or an ambient IoT function (AIoTF) network element, etc.).

[0204] As another example, the first information can be used for a query (Query), and the first information can be a Query message / signaling / information, or the first information can be an Access Round Trigger / Indication message / signaling / information. In this case, the first information can be used to trigger / indicate at least one access opportunity, such as directly or indirectly indicating the total number of access opportunities, and can also be used to trigger the first access opportunity.

[0205] As another example, the first information can be a Query repetition (QueryRep), and the first information can be a QueryRep message / signaling / information, or the first information can be an Access Round Trigger / Indication message / signaling / information. In this case, the first information can be used to trigger / indicate the next access opportunity, and can also be understood as indicating the boundary (start or end) associated with an access opportunity.

[0206] Optionally, the above-mentioned access opportunity can also be described as an access occasion, an access time slot, etc., and each access opportunity can allow the first communication device to send one or more of the following: an access (request), a contention resolution, or data transmission.

[0207] As another example, the first information can be a message / signaling / information for initial triggering of DL or RD, which can be understood as the first message / signaling / information for triggering or indicating or paging in a service flow.

[0208] In addition, the second information can be used to carry signaling or data. Taking the process shown in FIG. 3 as an example, the first communication device can be the tag device shown in FIG. 4, and the second information can be the Query message / signaling / information in step 2, the QueryRep message / signaling / information in step 2a, the ACK in step 4, etc. shown in FIG. 3. Alternatively, the second information can have other message names, such as an Access Round Trigger / Indication message, an access ID response, or a random access ID response, a temporary identifier, etc.

[0209] It should be understood that the N frequency domain resources can be N non-identical frequency domain resources. For example, in the frequency domain, the N frequency domain resources can be N non-overlapping frequency domain resources, i.e., any two frequency domain resources do not include the same subcarriers. For another example, in the frequency domain, at least two of the N frequency domain resources partially overlap, i.e., the at least two frequency domain resources include one or more same subcarriers. Taking an example in which the at least two frequency domain resources include a frequency domain resource 1 and a frequency domain resource 2, the two resources partially overlap, which can mean that the two resources are both located in a certain resource block (RB) and correspond to different frequencies, or the two resources are located in different RBs.

[0210] It should be understood that after the first communication device determines the N frequency domain resources based on the first information received in step S401, the first communication device can randomly select one of the N frequency domain resources as the first frequency domain resource, or the first communication device can determine an index of the first frequency domain resource in the N frequency domain resources based on the collected information (for example, the collected information of the first communication device is a device identifier of the first communication device, and the index is one of a plurality of values included in the device identifier), or the first communication device can determine the first frequency domain resource in the N frequency domain resources based on a certain parameter / IE carried by the first information (for example, the parameter / IE can indicate one or more of the number of Manchester repetitions, the number of chip repetitions (Rchip), a level length-related parameter, or Manchester coding (index), which can be referred to Table 2 and related examples below), or the first communication device determines the first frequency domain resource in the N frequency domain resources by other means, which is not limited here.

[0211] Optionally, since the first information is used for paging the terminal device, i.e. the second communication apparatus, it is very likely that the first communication apparatus has not saved or obtained the communication parameter between the first communication apparatus and the second communication apparatus. For this purpose, the first information received by the first communication apparatus in step S401 can be carried on a default frequency domain resource (or a pre-configured frequency domain resource), in this way, different first communication apparatuses can be enabled to receive the first information based on the default frequency domain resource, so as to avoid failure of receiving the first information.

[0212] For example, the first communication apparatus has not saved or obtained the communication parameter between the first communication apparatus and the second communication apparatus can include a cyclic redundancy check (CRC) parameter (e.g. the CRC parameter can include different CRC bit numbers, such as 0 or 6 bits, etc., if not configured, the CRC check can fail), a communication bandwidth configuration, a transmission time / timer configuration (the time for sending an uplink message within which each received downlink message is determined to be abnormal, the reader is the time length corresponding to the base station and the UE), etc. Correspondingly, in the case that the first communication apparatus has not saved or obtained the communication parameter, the first communication apparatus can receive / detect the first information based on a default parameter.

[0213] Based on the scheme shown in FIG. 4, the first information received by the first communication apparatus in step S401 is used for paging the terminal device, and the first information can also be used for indicating N frequency domain resources. Subsequently, in step S402, the first communication apparatus can receive second information on a first frequency domain resource of the N frequency domain resources. In other words, different first communication apparatuses can determine two or more frequency domain resources based on the paging message, and different first communication apparatuses can receive information based on different frequency domain resources of the two or more frequency domain resources. In this way, different first communication apparatuses can receive information in a frequency division multiplexing manner, which can reduce communication interference between different communication apparatuses and improve access capacity, thereby improving communication efficiency.

[0214] In addition, in the process of using time division multiplexing for communication between different communication apparatuses, using different time domain resources by different communication apparatuses can increase communication delay. In the above scheme, different first communication apparatuses can receive information in a frequency division multiplexing manner, so that different first communication apparatuses can use the same or similar time domain resources for communication, which can reduce communication delay and further improve communication efficiency.

[0215] In a possible implementation, in step S402 shown in FIG. 4, the second communication apparatus can receive one or more pieces of information sent to one or more first communication apparatuses on part or all of the N frequency domain resources, where the part or all of the N frequency domain resources include the first frequency domain resource, and the one or more pieces of information include the second information. In other words, the second communication apparatus can send information to N different first communication apparatuses based on the N frequency domain resources, so that the first communication apparatus that selects the i th (i is an integer from 1 to N) frequency domain resource of the N frequency domain resources can receive information from the second communication apparatus based on the i th frequency domain resource, to implement frequency division multiplexing of the N different first communication apparatuses. Taking the scenario shown in FIG. 3 as an example, in the scenario shown in FIG. 3, time division multiplexing is used, and 2 Q tag devices can access the reader during the communication process of 2 Q time domain units. In the process shown in FIG. 4, frequency division multiplexing is used, and the communication process of N communication apparatuses can be implemented on each time domain unit. Accordingly, during the communication process of 2 Q time domain units, communication of N*(2 Q ) tag devices can be supported, which can greatly improve the access capacity of the second communication apparatus (for example, the reader).

[0216] In the method shown in FIG. 4, the first information received by the first communication apparatus through step S401 can determine the N frequency domain resources, which can be understood as the resources used by the first communication apparatus to receive information. For example, the first communication apparatus can be a tag device shown in FIG. 3, and the first communication apparatus can receive ACK in step 4, QueryRep message in step 6, and the like shown in FIG. 3 based on the N frequency domain resources. In addition, for the first communication apparatus, the first communication apparatus can also send information to the second communication apparatus, for example, the first communication apparatus can send RN in step 3, EPC in step 5, and the like shown in FIG. 3. Accordingly, the first communication apparatus can determine the resources used to send information in various ways, which will be described below in combination with some implementation examples.

[0217] Implementation example one: the N frequency domain resources indicated by the first information have a corresponding relationship with the M frequency domain resources, and N is equal to M, where the N frequency domain resources and the M frequency domain resources are in one-to-one correspondence.

[0218] In implementation example one, different first communication apparatuses can send information based on the M frequency domain resources, so that different first communication apparatuses can send information in a frequency division multiplexing manner, which can reduce communication interference between different communication apparatuses and improve access capacity, thereby improving communication efficiency.

[0219] Similarly, the M frequency domain resources can be M not completely identical frequency domain resources. For example, in the frequency domain, the M frequency domain resources can be M mutually non-overlapping frequency domain resources, i.e., any two frequency domain resources do not include the same subcarrier. For another example, in the frequency domain, at least two of the M frequency domain resources exist partially overlapping, i.e., at least two frequency domain resources include one or more same subcarriers.

[0220] Optionally, in the implementation example one, the first information received by the first communication device in step S401 can also be used to indicate the correspondence relationship between the N frequency domain resources and the M frequency domain resources, so that the first communication device can determine the M frequency domain resources based on the received first information, to realize the flexible configuration of the M frequency domain resources by the sender (e.g., the second communication device) of the first information.

[0221] As an example, taking N=M=3, and the first communication device being a terminal device and the second communication device being a network device as an example, in the implementation example one, the first information can indicate that there is a correspondence relationship between 3 (N=3) downlink frequency domain resources and 3 (M=3) uplink frequency domain resources. Wherein, the first information can be indicated in multiple ways.

[0222] Way 1. The first information can include two fields, one field can include three parameters (e.g., parameters A, B, C, and parameter A indicates downlink frequency domain resource 1, parameter B indicates downlink frequency domain resource 2, and parameter C indicates downlink frequency domain resource 3) for indicating 3 downlink frequency domain resources, and another field can include three parameters (e.g., parameters D, E, F, and parameter D indicates uplink frequency domain resource 1, parameter E indicates uplink frequency domain resource 2, and parameter F indicates uplink frequency domain resource 3) for indicating 3 uplink frequency domain resources.

[0223] For example, in way 1, if the first information indicates that downlink frequency domain resource 1 corresponds to uplink frequency domain resource 1, downlink frequency domain resource 2 corresponds to uplink frequency domain resource 2, and downlink frequency domain resource 3 corresponds to uplink frequency domain resource 3, the above-mentioned one field can be represented as {A, B, C}, and the above-mentioned another field can be represented as {D, E, F}, i.e., the correspondence relationship is indicated by the order of the parameters included in each field.

[0224] For another example, in way 1, if the first information indicates that downlink frequency domain resource 1 corresponds to uplink frequency domain resource 2, downlink frequency domain resource 2 corresponds to uplink frequency domain resource 3, and downlink frequency domain resource 3 corresponds to uplink frequency domain resource 1, the above-mentioned one field can be represented as {A, B, C}, and the above-mentioned another field can be represented as {E, F, D}, i.e., the correspondence relationship is indicated by the order of the parameters included in each field.

[0225] Optionally, the first information can be used to indicate the first frequency domain resource and the second frequency domain resource.

[0226] For example, in the case of N=M=3, the first information can include 3 fields, each of which is used to indicate one downlink frequency domain resource and one uplink frequency domain resource.

[0227] Optionally, as can be known from the above process, the first information can be used to indicate M frequency domain resources. The manner in which the first information indicates any of the M frequency domain resources can refer to the implementation processes of manner A, manner B or manner C in example two below.

[0228] Optionally, the first communication device can determine the correspondence through other information in addition to the first information, i.e., the other information can indicate the correspondence.

[0229] Optionally, the first communication device can determine the correspondence through pre-configuration to save signaling overhead.

[0230] For example, in example one, the first frequency domain resource corresponds to a second frequency domain resource of the M frequency domain resources.

[0231] As shown in FIG. 5, in example one, the method shown in FIG. 4 can further include:

[0232] Step A. The first communication device sends third information, and correspondingly, the second communication device receives the third information. The third information is carried on the second frequency domain resource.

[0233] In other words, the first communication device can also determine the second frequency domain resource corresponding to the first frequency domain resource (or determine the first frequency domain resource corresponding to the second frequency domain resource) based on the correspondence between the N frequency domain resources and the M frequency domain resources. In this way, the first communication device can send the third information based on the second frequency domain resource, so that different first communication devices can send information through frequency division multiplexing, which can reduce communication interference between different communication devices and improve access capacity, thereby improving communication efficiency.

[0234] Optionally, the third information can be used for response of the first information or for data transmission, e.g., the third information can be RN in step 3 and EPC in step 5 shown in FIG. 3. For another example, the third information can be other message names, e.g., access ID, random access ID, UL data, DR data, or device ID, etc.

[0235] It should be noted that in FIG. 5, step A is performed after step S401. The execution order of step A and step S402 is not limited, for example, step A can be performed first and then step S402 can be performed, or step S402 can be performed first and then step A can be performed.

[0236] In example two, the N frequency domain resources indicated by the first information correspond to the third frequency domain resource, that is, for the first communication device, the N frequency domain resources used for information receiving correspond to the same frequency domain resource used for information sending.

[0237] As shown in FIG. 6a, in example two, the method shown in FIG. 4 further includes:

[0238] Step B. The second communication device sends fourth information, and correspondingly, the first communication device receives the fourth information. The fourth information includes parameters for determining the third frequency domain resource. In other words, there is a corresponding relationship between the N frequency domain resources indicated by the first information and the third frequency domain resource, and correspondingly, the first communication device can also receive the fourth information and determine the third frequency domain resource based on the parameters contained in the fourth information, so as to realize flexible configuration of the third frequency domain resource by the sender (for example, the second communication device) of the fourth information.

[0239] As an example, the parameters contained in the fourth information for determining the third frequency domain resource can be implemented in various ways, which will be described below through various examples such as example A to example C.

[0240] Example A. The parameters contained in the fourth information can indicate the frequency information / frequency domain position / frequency point position of the third frequency domain resource.

[0241] Example B. The parameters contained in the fourth information can indicate the frequency shift between the third frequency domain resource and the default frequency domain position (or the preconfigured frequency domain position).

[0242] Example C. The parameters contained in the fourth information can include at least one of the following:

[0243] Parameter 1. Time parameter (denoted as Tpri). For example, parameter 1 can indicate an uplink or downlink or uplink and downlink transmission time unit, or a parameter related to the uplink or downlink or uplink and downlink transmission time unit, etc.

[0244] Parameter 2. Code length parameter (denoted as M). For example, parameter 2 can be the number of Manchester code repetitions, or a parameter related to the number of Manchester code repetitions, etc.

[0245] Parameter 3. Scaling parameter (denoted as Rchip). For example, parameter 3 can be the number of level repetitions, or a parameter related to the length of the level, etc.

[0246] In a possible implementation of the method C, the parameters 1 to 3 can be configured by Table 2.

[0247] Table 2

[0248] As shown in Table 2, index = 0 corresponds to Tpri = 25 microseconds (us), Rchip = 4, and M = 1; index = 1 corresponds to Tpri = 25 us, Rchip = 4, and M = 2; and so on.

[0249] The three parameters configured by Table 2 can be used to determine the frequency domain resource / position.

[0250] As shown in FIG. 6b, the parameter 1 can be used to determine the frequency domain bandwidth (i.e., the uplink carrier BW in FIG. 6b). The frequency domain resource corresponding to "M = 1, Rchip = 16" in FIG. 6b represents the frequency domain resource corresponding to index 9 in Table 2; the frequency domain resource corresponding to "M = 2, Rchip = 8" in FIG. 6b represents the frequency domain resource corresponding to index 6 in Table 2; and the frequency domain resource corresponding to "M = 4, Rchip = 4" in FIG. 6b represents the frequency domain resource corresponding to index 2 in Table 2.

[0251] As shown in the example in FIG. 6b, the product of the parameters 2 and 3 (i.e., M and Rchip) determines the effective bandwidth (the part in the brackets pointed by the arrow). If the products are the same, the effective bandwidths are the same, the effective rates are the same, and the communication performance after frequency shift can be kept consistent. In addition, if the products of M and Rchip are the same, the effective bandwidths are the same. Different combinations of M and Rchip can be configured by Table 2 to achieve different frequency shifts with the same bandwidth, thereby realizing uplink frequency division multiplexing.

[0252] Optionally, in the example shown in Table 2, each index can be configured with three parameters (i.e., Tpri, Rchip, and M). In addition to the example shown in Table 2, the three parameters can also be configured in other ways. For example, the three parameters can be configured by three different fields / elements / domains respectively; or for example, the three parameters can be configured by two different fields / elements / domains respectively, i.e., one field / element / domain is used to configure one parameter, and the other field / element / domain is used to configure the other two parameters.

[0253] Optionally, the fourth information can be information carrying relevant parameters, and the fourth information can be the same information / message / signaling as the second information or different information / message / signaling. For example, the fourth information can be the Query message in step 2 of FIG. 3, the QueryRep message in step 2a, the ACK in step 4, etc. For another example, the fourth information can have other message names, such as an Access Round Trigger / Indication message, an access ID response, or a random access ID response, etc.

[0254] Optionally, the first communication device can determine the third frequency domain resource through other information in addition to the fourth information, i.e., the other information can indicate the third frequency domain resource.

[0255] Optionally, the first communication device can determine the third frequency domain resource in a preconfigured manner to save signaling overhead.

[0256] As shown in FIG. 6a, in implementation example two, the method shown in FIG. 4 can further include:

[0257] Step C. The first communication device sends fifth information, and correspondingly, the second communication device receives the fifth information. The fifth information is carried in the third frequency domain resource. In other words, after determining the third frequency domain resource corresponding to the N frequency domain resources, the first communication device can further send the fifth information based on the third frequency domain resource, so that the receiver (e.g., the second communication device) of the fifth information can receive the fifth information on the third frequency domain resource matching the N frequency domain resources.

[0258] Optionally, the fifth information can be used for response of the first information or for data transmission, e.g., the fifth information can be the RN in step 3 of FIG. 3, the EPC in step 5, etc. For another example, the fifth information can have other message names, such as an access ID, a random access ID, UL data, DR data, or a device ID, etc.

[0259] In a possible implementation manner of implementation example two, the fifth information is used to indicate the first frequency domain resource. In this way, the receiver (e.g., the second communication device) of the fifth information can know the first frequency domain resource selected by the first communication device.

[0260] In the implementation example two, taking the first communication device as a terminal device and the second communication device as a network device as an example, the N frequency domain resources indicated by the first information can be N downlink frequency domain resources, and the N downlink frequency domain resources correspond to a certain uplink frequency domain resource (i.e., a third frequency domain resource). In this way, the first communication device can perform one or more uplink transmission processes based on the third frequency domain resource (for example, the uplink transmission is realized by one or more execution processes of step C).

[0261] In the implementation example three, the N frequency domain resources indicated by the first information have a corresponding relationship with K frequency domain resources, K being a positive integer.

[0262] For example, the first information can indicate the K frequency domain resources through one or more parameters. For example, the first information indicates any frequency domain resource in the M frequency domain resources in the manner described in the implementation example two, for example, the manner A, the manner B, or the manner C. For another example, the parameters included in the first information can indicate the corresponding relationship between the N frequency domain resources and the K frequency domain resources in the manner 1 or the manner 2.

[0263] As shown in FIG. 7, in the implementation example three, the method shown in FIG. 4 further includes:

[0264] Step D. The first communication device sends sixth information, and correspondingly, the second communication device receives the sixth information. The sixth information is carried in a fourth frequency domain resource in the K frequency domain resources. In other words, the N frequency domain resources indicated by the first information have a corresponding relationship with the K frequency domain resources, and the first communication device can further send the sixth information based on the fourth frequency domain resource in the K frequency domain resources, so that the receiver (for example, the second communication device) of the fifth information can receive the fifth information on the frequency domain resource matched with the N frequency domain resources.

[0265] Similarly, the K frequency domain resources can be K frequency domain resources that are not completely the same. For example, in the frequency domain, the K frequency domain resources can be K frequency domain resources that do not overlap with each other, that is, any two frequency domain resources do not include the same subcarrier. For another example, in the frequency domain, at least two frequency domain resources in the K frequency domain resources partially overlap, that is, at least two frequency domain resources include one or more same subcarriers.

[0266] Optionally, the sixth information can be used for the response of the first information or for data transmission. For example, the sixth information can be the RN in step 3 shown in FIG. 3, the EPC in step 5, or the like. For another example, the sixth information can be other message names, for example, an access ID, a random access ID, UL data, DR data, or a device ID, or the like.

[0267] Optionally, K is greater than 1. In this way, different first communication devices can send information in a frequency division multiplexing manner based on the K frequency domain resources, so as to reduce communication interference between different communication devices and improve access capacity, and further improve communication efficiency.

[0268] In a possible implementation of the third implementation example, the sixth information sent by the first communication device in step D is used to indicate the first frequency domain resource. Specifically, the sixth information sent by the first communication device can also be used to indicate the first frequency domain resource, so that the receiver (for example, the second communication device) of the sixth information can determine the first frequency domain resource selected by the first communication device.

[0269] In a possible implementation of the third implementation example, the second information received by the first communication device in step S402 is used to indicate the fourth frequency domain resource. Specifically, in the case where there is a corresponding relationship between the N frequency domain resources and the K frequency domain resources, it is possible that multiple first communication devices select the same frequency domain resource (for example, the first frequency domain resource) in the N frequency domain resources. Correspondingly, the second information received by the first communication device can also be used to indicate the fourth frequency domain resource, so that the first communication device can determine that the second information corresponds to the first communication device that selects the fourth frequency domain resource, so as to distinguish different communication devices that select the first frequency domain resource.

[0270] It should be noted that the first communication device and the second communication device can communicate based on one or more of the above-mentioned implementation examples one to three.

[0271] For example, the first communication device or the second communication device determines to use one of the implementation examples one to three for communication based on an indication sent by the network device (or determines in a preconfigured manner based on a standard / protocol).

[0272] For another example, the first communication device determines to use one of the implementation examples one to three for communication based on an indication sent by the network device (which can be the second communication device or different from the second communication device) (or determines in a preconfigured manner based on a standard / protocol); thereafter, the first communication device determines to use another of the implementation examples one to three for communication based on another indication sent by the network device. That is, different implementation examples can exist switching process, and the switching can be indicated by the network device.

[0273] For example, the first communication device determines to use one of the implementation examples 1-3 in a certain time period based on the pre-configuration of the standard / protocol, and then determines to use another of the implementation examples 1-3 in another time period based on the pre-configuration of the standard / protocol. That is, the different implementation examples can have a switching process, which can be pre-configured.

[0274] As described above, in the case that the first communication device is a tag device and the second communication device is a reader / writer, two or more tag devices can select the same time domain unit in the communication process between the reader / writer and the N*(2^Q) tag devices. For example, in the process shown in FIG. 4, P (P is greater than 1) first communication devices can select the first frequency domain unit in different time domain units. The second communication device can determine one or more devices that select the first frequency domain unit based on the information (e.g., the third information in step A of the implementation example 1, the fifth information in step C of the implementation example 2, the sixth information in step D of the implementation example 3, etc., hereinafter referred to as information 1) sent by the first communication devices. In this case, in order to reduce the communication delay, the second communication device can send a message based on the first frequency domain resource, and the message can include part or all of the P information corresponding to the P first communication devices.

[0275] In other words, the second information received by the first communication device in step S402 can be included in a message, and the message can include T (T is greater than 1 and less than or equal to P) information, one of the T information is the information received by the first communication device (e.g., the second information described above, the fourth information in step B of the implementation example 2, etc., hereinafter referred to as information 2). For example, the message can include T MAC CEs, respectively used to carry the T information. For example, the message can include a joint MAC CE, and the joint MAC CE can include T fields, respectively used to carry the T information.

[0276] For example, when T is equal to P, the T information is referred to as the P information. In order to enable the P first communication devices to obtain the corresponding information based on the same message, a plurality of processing methods can be used to process the P information, which will be described below in combination with some examples.

[0277] Example A: For the message including the P information, no scrambling processing is performed or pre-configured information is used for scrambling.

[0278] In example A, when the first communication device sends information 1 based on the first information, the first communication device starts a first timer of a physical layer; when the higher layer (e.g., a MAC layer or other protocol layer above the physical layer) successfully resolves information 2, the higher layer indicates to the physical layer to terminate the first timer.

[0279] Alternatively, when the first communication device sends information 1 based on the first information, the first communication device starts a second timer of the higher layer, and when the higher layer successfully resolves information 2, the first communication device determines to terminate the second timer.

[0280] In example B, for a message containing P pieces of information, the second communication device uses P different pieces of information to scramble the P pieces of information respectively.

[0281] Similarly, in example B, when the first communication device sends information 1 based on the first information, the first communication device starts a third timer of a physical layer; when the physical layer successfully resolves information 2, the first communication device determines to terminate the third timer.

[0282] Alternatively, when the first communication device sends information 1 based on the first information, the first communication device starts a fourth timer of the higher layer or the physical layer, and when the higher layer successfully resolves information 2, the first communication device determines to terminate the fourth timer.

[0283] Optionally, any of the above first timer to fourth timer can be determined by pre-configuration or determined by configuration received by the first communication device in advance, which is not limited here.

[0284] In a possible implementation, the first communication device can contain a sequence when sending information 1, and the length of the sequence can be used to determine the first frequency domain resource. In other words, after the first communication device selects the first frequency domain resource from N frequency domain resources, the first communication device can indicate the first frequency domain resource by the sequence length of the sent sequence. In this way, in the scenario of frequency division multiplexing, the length of the sequence can be used to indicate the frequency domain resource selected by the first communication device, which can reduce the overhead and further improve the communication efficiency.

[0285] Optionally, in the above case, the information 1 can be used for access, used for random access, etc.

[0286] Optionally, in the above case, the sequence contained in the information 1 can be a random number, a random sequence, a random access preamble, etc.

[0287] As an example, for the sequence contained in the information 1, the length (bit number) of RN can be divided into different groups, and different groups can implicitly indicate / correspond to different frequency domain resources (e.g. the first frequency domain resource), or the length (bit number) of RN can be used to indicate the length of the subsequent uplink data.

[0288] For example, RN with bit length of 16 bits is one group (denoted as group 1), which can correspond to one of the N frequency domain resources, and RN with bit length of 8 bits is another group (denoted as group 2), which can correspond to another of the N frequency domain resources.

[0289] For another example, RN with bit length of 16 bits is one group (denoted as group 3), which can correspond to the bit number of the data (e.g. uplink data) sent by the first communication device subsequently (or next time), which is X bits, and X is a positive integer; and RN with bit length of 8 bits is one group (denoted as group 4), which can correspond to the bit number of the data (e.g. uplink data) sent by the first communication device subsequently (or next time), which is Y bits, and Y is a positive integer different from X.

[0290] In a possible implementation, after sending the information 1, the first communication device can fail to successfully receive the information 2 carried on the first frequency domain resource (e.g. the communication link deteriorates, causing the second communication device to have sent the information 2 but the first communication device fails to successfully receive, or the second communication device fails to successfully receive the information 1). In this case, in order to avoid the problem of rising power consumption caused by the first communication device performing long-time signal detection on the first frequency domain resource, the first communication device can trigger the first event based on any of the following conditions.

[0291] For example, the first event can include the first communication device determining not to respond to the first information (or repeated transmission of the first information), or the first communication device switching to another frequency domain resource of the N frequency domain resources to receive the information 2, or the first communication device switching to another frequency domain resource to send the information 1.

[0292] For example, the any condition can include:

[0293] The first communication device determines that the information 2 has not been received;

[0294] The first communication device determines that the second event occurs, and the second event is used to indicate that a timer is started when the information 1 is sent, and it is determined that the information 2 has not been received when the timer expires;

[0295] The first communication device determines that the number of times that the second event occurs reaches or exceeds a threshold value.

[0296] In one possible implementation, as described above for P pieces of information, the first communication device can be interfered by other communication devices which select the same frequency domain resource (i.e. the first frequency domain resource) when receiving information 2. Similarly, the first communication device can also be interfered by other communication devices which select the same frequency domain resource (e.g. the second frequency domain resource, the third frequency domain resource, etc. as described above) when transmitting information 1. In order to reduce the interference of the process, the configuration can be used. For example, taking the case that L (L is greater than 1) communication devices (the L communication devices include the first communication device) use the same time unit to transmit information 1, the second communication device can carry one or more indications of time offset in the transmitted information 2, so that part or all of the L communication devices can transmit information 1 based on one of the time offsets. In this way, the same uplink frequency message collision can be prevented, the interference can be reduced, the access capacity can be improved, and the communication efficiency can be further improved.

[0297] For example, taking the case that the L first communication devices include device 1 and device 2, the second communication device transmits ACK1 and ACK2 corresponding to device 1 and device 2 respectively, if device 1 and device 2 select the same frequency resource, device 1 and device 2 need to be staggered in time after receiving the respective ACKs to avoid the collision / interference of the uplink data (UL data1) corresponding to device 1 and the uplink data (UL data2) corresponding to device 2. Therefore, the second communication device transmits ACK1 associated with a time offset (time offset1) and ACK2 associated with another time offset (time offset2), in this way, device 1 transmits UL data1 after time offset1 after receiving ACK1, and device 2 transmits UL data2 after time offset2 after receiving ACK2, so that UL data1 and UL data2 can be staggered in time, and the same uplink frequency message collision can be prevented. Alternatively, at least one of time offset1 or time offset2 can be 0.

[0298] It should be noted that the method shown in FIG. 4 can be applied to a random access procedure (or an inventory procedure, which will be taken as an example below) of the first communication device, in other words, each information / message / signaling described above can be information / message / signaling in the random access procedure. In the random access procedure, the first communication device can receive one or more information, which can include the information received by the first communication device mentioned above, such as the first information, the second information, the fourth information, etc.

[0299] In the following examples, the one or more information received by the first communication device includes information A, which is taken as an example to describe the random access procedure. When condition 1 below is met, the first communication device can discard the information A.

[0300] Condition 1. The information A includes a field (or information element, domain) 1, which is used to indicate the type of the information A; wherein the type of the information A is different from the type of information expected to be received by the first communication device in the random access procedure.

[0301] For example, taking the process of FIG. 3 as an example, after receiving the select message, the type of information expected to be received by the first communication device is the Query message. If the field 1 carried by the information A indicates that the type of the information A is not the Query message (for example, the field 1 indicates that the type of the information A is ACK, downlink data, etc.), the first communication device can discard the information A. For example, taking the first communication device as a terminal device, the identification information corresponding to the paging signaling can be 1111, the identification information corresponding to the ACK signaling can be 1000, and the identification information corresponding to the QueryRep signaling can be 1001. When the terminal device receives a downlink message, it can determine the type of the downlink message according to the identification information 1, and if the downlink message is not the downlink message currently required to be responded to, the terminal device can discard (or not respond to) the downlink message. For another example, in the random access procedure, the terminal device listens to the ACK sent to other terminal devices in the process of listening to the QueryRep, and can discard the ACK message when it is confirmed that the LCID or the identification information is not the QueryRep, without parsing (or reading) other fields of the message, so as to reduce the power consumption of the terminal device.

[0302] For another example, taking the process of FIG. 3 as an example, after sending the RN, the type of information expected to be received by the first communication device is ACK. If the field 1 carried by the information A indicates that the type of the information A is not ACK (for example, the field 1 indicates that the type of the information A is paging, Query, QueryRep, downlink data, etc.), the first communication device can discard the information A.

[0303] In the case that the condition 1 is met, the first communication device can determine that the receiver of the information A is very likely to not contain the first communication device, i.e., the first communication device can determine not to parse the information A. In other words, in the case that the first communication device receives the information A and parses the field 1 in the information A, when the first communication device determines that the condition 1 is met, the first communication device can discard (or confirm to discard) the information A, i.e., the first communication device can not parse / store other fields carried by the information A. According to the conventional processing manner, the communication device can need to completely parse the received information to obtain a parsing result, and then further judge whether the received information is discarded based on the parsing result. Through the above implementation manner, unnecessary information parsing / storage process can be avoided or reduced, and the power consumption and complexity of the first communication device can be reduced.

[0304] It can be understood that, if the condition 1 is not met, i.e., the type of the information A indicated by the field 1 is the same as the type of the information expected to be received by the first communication device in the random access process, the first communication device can parse / store other fields carried by the information A.

[0305] Optionally, in addition to indicating the type of the information A, the field 1 can be replaced by other information. For example, taking the first communication device as a terminal device, the field 1 includes a group identifier (such as a group number) or a process identifier (such as a process number) associated with the information A, to indicate which group or process of terminal devices needs to respond to the corresponding downlink message. For example, in the random access process, the terminal device of the group 1 receives the QueryRep or Query carrying the identifier of the group 2, can determine the group number associated with the downlink message only according to the identifier 1, and if the downlink message is not associated with the group where the terminal device is located, the downlink message can be discarded, and other fields of the message do not need to be parsed (or read), so as to reduce the power consumption of the terminal device.

[0306] Optionally, in the case that the condition 1 is met and the condition 2 is met, the first communication device can not discard the information A. In other words, in the case that the condition 1 is met and the condition 2 is met, the first communication device can parse / store other fields carried by the information A.

[0307] The condition 2. The information A includes a field (or information element, domain) 2, and the field 2 carries identifier information. The identifier information is matched with the first communication device.

[0308] Optionally, for the condition 1, if the field 1 indicates that the message is paging or Query signaling, the Paging or Query signaling can also not be discarded, and whether the paging or query is discarded is further judged according to the field 2.

[0309] Optionally, the identification information can include one or more of mask information, group identification, device identification, logical channel identifier (LCID), process number, inventory session information, action information.

[0310] For example, taking the previous process of FIG. 3 as an example, after the first communication device receives the select message, the first communication device expects the type of information received to be a Query message. If field 1 carried by information A indicates that the type of information A is not a Query message (for example, the field 1 indicates that the type of information A is a paging), the first communication device parses field 2 carried by information A, and the identification information carried by the field 2 can include one or more of mask information or group identification or device identification. If the identification information carried by the field 2 matches the first communication device (i.e., condition 2 is met), the first communication device can not discard information A (or the first communication device can parse / store other fields carried by information A).

[0311] For example, taking the previous process of FIG. 3 as an example, after the first communication device receives the select message, the first communication device expects the type of information received to be a Query message. If field 1 carried by information A indicates that the type of information A is not a Query message (for example, the field 1 indicates that the type of information A is a paging), the first communication device parses field 2 carried by information A, and the identification information carried by the field 2 can include one or more of mask information or group identification or device identification. If the identification information carried by the field 2 matches the first communication device (i.e., condition 2 is met), the first communication device can not discard information A (or the first communication device can parse / store other fields carried by information A).

[0312] As can be seen from the above examples, when the first communication device receives Paging or Query signaling, if the first communication device meets the response condition of the Paging or Query signaling, even if the first communication device is currently listening to ACK signaling or QueryRep signaling, the first communication device can not discard the Paging or Query signaling.

[0313] In the case where condition 1 is met and condition 2 is met, the first communication device can determine that the receiver of information A is very likely to contain the first communication device, i.e., the first communication device can parse the information A and perform random access based on the parsing result. Through the above process, it can be avoided that the first communication device incorrectly discards the process, which leads to communication failure, so as to improve the access success rate of the first communication device in the random access process.

[0314] Please refer to FIG. 8, the embodiment of the present application provides a communication device 800, which can realize the functions of the communication device (the communication device is a terminal device or a network device) in the method embodiments described above, and thus can also realize the beneficial effects possessed by the method embodiments described above. In the embodiment of the present application, the communication device 800 can be a communication device, or an integrated circuit or element inside the communication device, such as a chip.

[0315] It should be noted that the transceiver unit 802 can include a sending unit and a receiving unit, which are respectively used for performing sending and receiving.

[0316] In a possible implementation, when the device 800 is used for executing the method performed by the network device in the foregoing FIG. 3 and related embodiments, the device 800 includes a processing unit 801 and a transceiver unit 802; the transceiver unit 802 is configured to receive first information, the first information being used for indicating N frequency domain resources, N being an integer greater than 1; wherein the first information is used for paging a terminal device; the processing unit 801 is configured to determine a first frequency domain resource in the N frequency domain resources; and the transceiver unit 802 is further configured to receive second information, the second information being carried in the first frequency domain resource in the N frequency domain resources.

[0317] In a possible implementation, when the device 800 is used for executing the method performed by the network device in the foregoing FIG. 7 and related embodiments, the device 800 includes a processing unit 801 and a transceiver unit 802; the processing unit 801 is configured to determine first information; the transceiver unit 802 is configured to send the first information, the first information being used for indicating N frequency domain resources, N being an integer greater than 1; wherein the first information is used for paging a terminal device; the processing unit 801 is further configured to determine second information; and the transceiver unit 802 is further configured to send the second information, the second information being carried in a first frequency domain resource in the N frequency domain resources.

[0318] It should be noted that the information execution process and the like of the units of the communication device 800 described above can be specifically referred to the descriptions in the method embodiments described above, and will not be described here.

[0319] Please refer to FIG. 9, which is another schematic structural diagram of a communication device 900 provided by the present application, the communication device 900 includes a logic circuit 901 and an input / output interface 902. Wherein, the communication device 900 can be a chip or an integrated circuit.

[0320] Wherein, the transceiver unit 802 shown in FIG. 8 can be a communication interface, which can be the input / output interface 902 in FIG. 9, the input / output interface 902 can include an input interface and an output interface. Alternatively, the communication interface can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0321] Optionally, the input and output interface 902 is configured to receive first information, the first information being used to indicate N frequency domain resources, N being an integer greater than 1; wherein the first information is used to page the terminal device; the logic circuit 901 is configured to determine a first frequency domain resource from the N frequency domain resources; and the input and output interface 902 is further configured to receive second information, the second information being carried in the first frequency domain resource from the N frequency domain resources.

[0322] Optionally, the logic circuit 901 is configured to determine first information; the input and output interface 902 is configured to send the first information, the first information being used to indicate N frequency domain resources, N being an integer greater than 1; wherein the first information is used to page the terminal device; the logic circuit 901 is further configured to determine second information; and the input and output interface 902 is further configured to send the second information, the second information being carried in the first frequency domain resource from the N frequency domain resources.

[0323] The logic circuit 901 and the input and output interface 902 can also perform other steps performed by the first communication device or the second communication device in any of the embodiments and achieve the corresponding beneficial effects, which will not be described here.

[0324] In a possible implementation, the processing unit 801 shown in FIG. 8 can be the logic circuit 901 in FIG. 9.

[0325] Optionally, the logic circuit 901 can be a processing device, and the functions of the processing device can be partially or entirely implemented through software.

[0326] Optionally, the processing device can include a memory and a processor, wherein the memory is configured to store a computer program, and the processor is configured to read and execute the computer program stored in the memory to perform the corresponding processing and / or steps in any one of the method embodiments.

[0327] Optionally, the processing device can only include the processor. The memory for storing the computer program is located outside the processing device, and the processor is connected with the memory through a circuit / wire to read and execute the computer program stored in the memory. The memory and the processor can be integrated together or can be physically independent of each other.

[0328] Optionally, the processing device can be one or more chips, or one or more integrated circuits. For example, the processing device can be one or more field-programmable gate arrays (FPGA), application specific integrated circuits (ASIC), system on chips (SoC), central processor units (CPU), network processors (NP), digital signal processors (DSP), micro controller units (MCU), programmable logic devices (PLD) or other integrated circuits, or any combination of the above chips or processors, etc.

[0329] Referring to FIG. 10, a communication device 1000 involved in the above embodiments provided by the embodiments of the present application is shown, which can be specifically a communication device (e.g., the first communication device or the second communication device) as a terminal device in the above embodiments.

[0330] Optionally, the communication device 1000 can include but is not limited to at least one processor 1001 and a communication port 1002.

[0331] Optionally, the transceiver unit 802 shown in FIG. 8 can be a communication interface, which can be the communication port 1002 in FIG. 10, and the communication port 1002 can include an input interface and an output interface. Alternatively, the communication port 1002 can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0332] Further optionally, the device can further include at least one of a memory 1003 and a bus 1004, and in the embodiments of the present application, the at least one processor 1001 is configured to control and process the actions of the communication device 1000.

[0333] In addition, the processor 1001 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, transistor logic, hardware components, or any combination thereof. It can implement or execute the various exemplary logical blocks, modules and circuits described in connection with the disclosure. The processor can also be a combination of implementing computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and the like. For the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can be referred to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0334] It should be noted that the communication device 1000 shown in FIG. 10 can be specifically used to implement the steps implemented by the terminal device in the foregoing method embodiments, and achieve the corresponding technical effects of the terminal device. The specific implementation mode of the communication device shown in FIG. 10 can be referred to the description in the foregoing method embodiments, which will not be described one by one here.

[0335] Please refer to FIG. 11, which is a structural schematic diagram of a communication device 1100 involved in the foregoing embodiments provided by the embodiments of the present application. The communication device 1100 can be specifically a communication device (for example, a second communication device) as a network device in the foregoing embodiments. The structure of the communication device can refer to the structure shown in FIG. 11.

[0336] The communication device 1100 includes at least one processor 1111 and at least one network interface 1114. Further optionally, the communication device further includes at least one memory 1112, at least one transceiver 1113 and one or more antennas 1115. The processor 1111, the memory 1112, the transceiver 1113 and the network interface 1114 are connected, for example, through a bus. In the embodiments of the present application, the connection can include various interfaces, transmission lines or buses, etc., which are not limited in the embodiments. The antenna 1115 is connected with the transceiver 1113. The network interface 1114 is used for enabling the communication device to communicate with other communication devices through a communication link. For example, the network interface 1114 can include a network interface between the communication device and a core network device, such as an S1 interface. The network interface can include a network interface between the communication device and other communication devices (for example, other network devices or core network devices), such as an X2 or Xn interface.

[0337] Among them, the transceiving unit 802 shown in FIG. 8 can be a communication interface, which can be a network interface 1114 in FIG. 11. The network interface 1114 can include an input interface and an output interface. Alternatively, the network interface 1114 can also be a transceiving circuit, which can include an input interface circuit and an output interface circuit.

[0338] The processor 1111 is mainly used for processing communication protocol and communication data, and controlling the whole communication device, executing software program, processing data of the software program, for example, for supporting the communication device to perform the actions described in the embodiments. The communication device can include a baseband processor and a central processor, the baseband processor is mainly used for processing communication protocol and communication data, and the central processor is mainly used for controlling the whole terminal device, executing software program, and processing data of the software program. The processor 1111 in FIG. 11 can integrate the functions of the baseband processor and the central processor, and those skilled in the art can understand that the baseband processor and the central processor can also be independent processors interconnected by bus and the like. Those skilled in the art can understand that the terminal device can include multiple baseband processors to adapt to different network modes, and the terminal device can include multiple central processors to enhance the processing capability, and various buses can be used to connect the components of the terminal device. The baseband processor can also be referred to as a baseband processing circuit or a baseband processing chip. The central processor can also be referred to as a central processing circuit or a central processing chip. The function of processing communication protocol and communication data can be built in the processor, or stored in the memory in the form of software program, and the baseband processing function is realized by executing the software program by the processor.

[0339] The memory is mainly used for storing software program and data. The memory 1112 can exist independently and be connected with the processor 1111. Alternatively, the memory 1112 can be integrated with the processor 1111, for example, integrated in a chip. The memory 1112 can store program codes for executing the technical solutions of the embodiments of the present application, and the processor 1111 controls the execution. The executed computer program codes can also be regarded as a driver of the processor 1111.

[0340] FIG. 11 only shows one memory and one processor. In the actual terminal device, multiple processors and multiple memories can exist. The memory can also be referred to as a storage medium or a storage device, etc. The memory can be a storage element on the same chip as the processor, that is, an on-chip storage element, or an independent storage element, and the embodiments of the present application do not limit this.

[0341] The transceiver 1113 can be configured to support the receiving or transmitting of radio frequency signals between the communication device and a terminal. The transceiver 1113 can be connected to the antenna 1115. The transceiver 1113 includes a transmitter Tx and a receiver Rx. Specifically, the one or more antennas 1115 can receive radio frequency signals, the receiver Rx of the transceiver 1113 is configured to receive the radio frequency signals from the antenna and convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or the digital intermediate frequency signals to the processor 1111 for further processing, such as demodulation processing and decoding processing, by the processor 1111. In addition, the transmitter Tx in the transceiver 1113 is also configured to receive modulated digital baseband signals or digital intermediate frequency signals from the processor 1111, and convert the modulated digital baseband signals or digital intermediate frequency signals into radio frequency signals, and transmit the radio frequency signals through the one or more antennas 1115. Specifically, the receiver Rx can selectively perform one or more levels of down-mixing processing and analog-to-digital conversion processing on the radio frequency signals to obtain the digital baseband signals or the digital intermediate frequency signals, and the order of the down-mixing processing and the analog-to-digital conversion processing can be adjustable. The transmitter Tx can selectively perform one or more levels of up-mixing processing and digital-to-analog conversion processing on the modulated digital baseband signals or the digital intermediate frequency signals to obtain the radio frequency signals, and the order of the up-mixing processing and the digital-to-analog conversion processing can be adjustable. The digital baseband signals and the digital intermediate frequency signals can be collectively referred to as digital signals.

[0342] The transceiver 1113 can also be referred to as a transceiving unit, a transceiver, a transceiving device, etc. Optionally, the devices in the transceiving unit for implementing the receiving function can be regarded as a receiving unit, and the devices in the transceiving unit for implementing the transmitting function can be regarded as a transmitting unit, that is, the transceiving unit includes the receiving unit and the transmitting unit, the receiving unit can also be referred to as a receiver, an input port, a receiving circuit, etc., and the transmitting unit can be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0343] It should be noted that the communication device 1100 shown in FIG. 11 can be specifically configured to implement the steps implemented by the network device in the foregoing method embodiments, and achieve the corresponding technical effects of the network device. The specific implementation mode of the communication device 1100 shown in FIG. 11 can be referred to the description in the foregoing method embodiments, which will not be described here one by one.

[0344] The embodiments of the present application also provide a computer readable storage medium for storing one or more computer execution instructions, when the computer execution instructions are executed by a processor, the processor executes the method described in the possible implementation mode of the first communication device or the second communication device in the foregoing embodiments.

[0345] The embodiment of the present application further provides a computer program product (or computer program), when the computer program product is executed by the processor, the processor executes the method of the possible implementation manners of the first communication device or the second communication device.

[0346] The embodiment of the present application further provides a chip system, which comprises at least one processor for supporting the communication device to implement the functions involved in the possible implementation manners of the communication device. Optionally, the chip system further comprises an interface circuit, which provides program instructions and / or data for the at least one processor. In a possible design, the chip system can further comprise a memory, which is used to store the necessary program instructions and data of the communication device. The chip system can be composed of a chip, or can comprise a chip and other discrete devices, and the communication device can be the first communication device or the second communication device in the foregoing method embodiments.

[0347] The embodiment of the present application further provides a communication system, which comprises the first communication device and the second communication device in any of the foregoing embodiments.

[0348] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented by other means. For example, the device embodiments described above are merely illustrative, for example, the division of the 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 or components shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0349] 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, that is, can be located in one place, or can be distributed on a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0350] In addition, each function unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software function unit. When the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such an understanding, the technical solutions of the present application, essentially or in the form of a contribution, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

Claims

1. A communication method characterized by comprising: Comprising: receiving first information, the first information being used for indicating N frequency domain resources, N being an integer greater than 1; wherein the first information is used for paging a terminal device; receiving second information, the second information being carried in a first frequency domain resource of the N frequency domain resources.

2. The method of claim 1, wherein, The N frequency domain resources and M frequency domain resources have a corresponding relationship, N being equal to M, wherein the N frequency domain resources and the M frequency domain resources are in one-to-one correspondence.

3. The method of claim 2, wherein, The first information is further used for indicating the corresponding relationship.

4. The method according to claim 2 or 3, characterized in that, The first frequency domain resource corresponds to a second frequency domain resource of the M frequency domain resources, the method further comprising: sending third information, the third information being carried in the second frequency domain resource.

5. The method of claim 1, wherein, The N frequency domain resources correspond to a third frequency domain resource, the method further comprising: receiving fourth information, the fourth information comprising a parameter used for determining the third frequency domain resource.

6. The method of claim 5, wherein, The method further comprising: sending fifth information, the fifth information being carried in the third frequency domain resource.

7. The method of claim 6, wherein, The fifth information is used for indicating the first frequency domain resource.

8. The method of claim 1, wherein, The N frequency domain resources and K frequency domain resources have a corresponding relationship, K being a positive integer; before the receiving second information, the method further comprising: sending sixth information, the sixth information being carried in a fourth frequency domain resource of the K frequency domain resources.

9. The method of claim 8, wherein, The sixth information is used for indicating the first frequency domain resource.

10. The method according to claim 8 or 9, characterized in that, The second information is used for indicating the fourth frequency domain resource.

11. A communication method, comprising: Comprising: sending first information, the first information being used for indicating N frequency domain resources, N being an integer greater than 1; wherein the first information is used for paging a terminal device; sending second information, the second information being carried in a first frequency domain resource of the N frequency domain resources.

12. The method of claim 11, wherein, The N frequency domain resources and M frequency domain resources have a corresponding relationship, N being equal to M, wherein the N frequency domain resources and the M frequency domain resources are in one-to-one correspondence.

13. The method of claim 12, wherein, The first information is further used for indicating the corresponding relationship.

14. The method according to claim 12 or 13, characterized in that, The first frequency domain resource corresponds to a second frequency domain resource of the M frequency domain resources, the method further comprising: receiving third information, the third information being carried in the second frequency domain resource.

15. The method of claim 11, wherein, The N frequency domain resources correspond to a third frequency domain resource, the method further comprising: sending fourth information, the fourth information comprising a parameter used for determining the third frequency domain resource.

16. The method of claim 15, wherein, The method further comprising: receiving fifth information, the fifth information being carried in the third frequency domain resource.

17. The method of claim 16, wherein, The fifth information is used for indicating the first frequency domain resource.

18. The method of claim 11, wherein, The N frequency domain resources and K frequency domain resources have a corresponding relationship, K being a positive integer; before the sending second information, the method further comprising: receiving sixth information, the sixth information being carried in a fourth frequency domain resource of the K frequency domain resources.

19. The method of claim 18, wherein, The sixth information is used for indicating the first frequency domain resource.

20. The method of claim 18 or 19, wherein, The second information is used for indicating the fourth frequency domain resource.

21. A communications device, characterized by Comprising a module for performing the method of any of claims 1 to 20.

22. A communications device, characterized by Comprising at least one processor for performing the method of any of claims 1 to 20.

23. A readable storage medium characterized by, The storage medium has stored therein a computer program or instructions which, when executed by a communication device, implement the method of any one of claims 1 to 20.

24. A communication system, characterized by comprising a first communication device and a second communication device; wherein the first communication device is configured to perform the method of any one of claims 1 to 10 and the second communication device is configured to perform the method of any one of claims 11 to 20.

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