CN118104268A

CN118104268A - Communication method, terminal, node equipment and communication system

Info

Publication number: CN118104268A
Application number: CN202480000259.8A
Authority: CN
Inventors: 赵文素; 朱亚军
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2024-01-17
Filing date: 2024-01-17
Publication date: 2024-05-28

Abstract

The present disclosure relates to a communication method, a terminal, a network device, and a communication system. The communication method comprises the following steps: and under the condition that the first condition is met, the terminal sends first information, wherein the first information is used for searching node equipment for communicating with the terminal, and the node equipment comprises one or more node equipment. The coverage of the network device can be improved, and the communication distance between the network device and the terminal can be increased.

Description

Communication method, terminal, node equipment and communication system

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a communication method, a terminal, node equipment, and a communication system.

Background

The environment Internet of things (Ambient Internet of Things, A-IoT) is a brand new technology of Internet of things.

The a-IoT terminal device is simpler in structure, lower in hardware cost, and lower in maintenance cost than a narrowband internet of things (Narrow Band Internet of Things, NB-IoT) terminal device.

Disclosure of Invention

The technical problem of how to improve the coverage of the network device and improve the communication distance between the network device and the terminal needs to be solved.

The embodiment of the disclosure provides a communication method, a terminal, node equipment and a communication system.

According to a first aspect of an embodiment of the present disclosure, a communication method is provided, the communication method including: and under the condition that the first condition is met, the terminal sends first information, wherein the first information is used for searching node equipment which communicates with the terminal.

According to a second aspect of the embodiments of the present disclosure, there is provided a communication method, including: the node equipment receives first information, wherein the first information is information sent by the terminal under the condition that a first condition is met.

According to a third aspect of the embodiments of the present disclosure, a communication method is provided, the communication method including: and under the condition that the first condition is met, the terminal sends first information, wherein the first information is used for requesting the node equipment to communicate with the terminal.

According to a fourth aspect of embodiments of the present disclosure, there is provided a terminal, including: and the receiving and transmitting module is used for transmitting first information under the condition that the first condition is met, wherein the first information is used for requesting the node equipment to communicate with the terminal.

According to a fifth aspect of embodiments of the present disclosure, there is provided a node device, comprising: and the receiving and transmitting module is used for receiving first information, wherein the first information is information sent by the terminal under the condition that the first condition is met.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a terminal, including: one or more processors; the terminal is configured to perform the first aspect and any one of the communication methods of the first aspect.

According to a seventh aspect of the embodiments of the present disclosure, there is provided a node apparatus, including: one or more processors; wherein the network device is configured to perform the second aspect and any one of the communication methods of the second aspect.

According to an eighth aspect of the embodiments of the present disclosure, a communication system is provided, including a terminal and a node device, where the terminal is configured to implement any one of the first aspect and the communication method of the first aspect, and the node device is configured to implement any one of the second aspect and the communication method of the second aspect.

According to a ninth aspect of the embodiments of the present disclosure, a storage medium is provided, the storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any one of the first aspect and the first aspect or any one of the second aspect and the second aspect of the communication method.

By the embodiment of the disclosure, the coverage of the network equipment can be improved, and the communication distance between the network equipment and the terminal is increased.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following description of the embodiments refers to the accompanying drawings, which are only some embodiments of the present disclosure, and do not limit the protection scope of the present disclosure in any way.

Fig. 1A is a schematic diagram of a communication system architecture shown in accordance with an embodiment of the present disclosure.

Fig. 1B is a schematic diagram of a networking mode architecture shown in accordance with an embodiment of the present disclosure.

Fig. 1C is a schematic diagram of a networking mode architecture, shown according to an embodiment of the present disclosure.

Fig. 2 is a schematic diagram illustrating a communication method interaction according to an embodiment of the present disclosure.

Fig. 3A is a flow chart diagram illustrating a communication method according to an embodiment of the present disclosure.

Fig. 3B is a flow chart diagram of a communication method shown in accordance with an embodiment of the present disclosure.

Fig. 4A is a flow diagram illustrating a communication method according to an embodiment of the present disclosure.

Fig. 4B is a flow chart diagram of a communication method shown in accordance with an embodiment of the present disclosure.

Fig. 5 is an interactive schematic diagram of a task processing method according to an embodiment of the disclosure.

Fig. 6A is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.

Fig. 6B is a schematic structural diagram of a node device according to an embodiment of the present disclosure.

Fig. 7A is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.

Fig. 7B is a schematic structural diagram of a chip according to an embodiment of the disclosure.

Detailed Description

In a first aspect, an embodiment of the present disclosure provides a communication method, including: the terminal transmits the first information in case that the first condition is satisfied.

In the above embodiment, by transmitting the first information under the condition that the first condition is satisfied and determining the network device capable of communicating with the terminal based on the first information, it is clear that the terminal can find the network device communicating with the terminal under the condition that the first condition is satisfied, and further determine the network device as the central node or the auxiliary node, thereby improving coverage of the network device.

With reference to some embodiments of the first aspect, in some embodiments, the terminal receives a first signal, and determines that a quality parameter value of the first signal is less than or equal to a first threshold, where the first signal is a signal sent by a network device; and the terminal does not receive feedback information of the network equipment on the second information within the effective time, and the second information is sent to the network equipment by the terminal.

In the above embodiment, the trigger condition of the first information transmission is clarified by defining the case where the first condition corresponds to being satisfied. The method and the device can determine the network device capable of communicating with the terminal based on the first information under the condition that the communication quality between the terminal and the current network device does not meet the requirement.

With reference to some embodiments of the first aspect, in some embodiments, the meeting the first condition includes the terminal determining that a quality parameter value of the first signal is less than or equal to a first threshold; the different quality parameter values correspond to different first thresholds.

With reference to some embodiments of the first aspect, in some embodiments, the meeting the first condition further includes: the terminal receives a first signal and determines that a quality parameter value of the first signal is greater than or equal to a second threshold value; wherein the first threshold is greater than the second threshold.

In the above embodiment, by defining that the quality parameter value of the first signal is greater than or equal to the second threshold value, it is possible to make a judgment whether the first condition is satisfied in the case where the type of apparatus operates, thereby determining whether to transmit the first information.

With reference to some embodiments of the first aspect, in some embodiments, the first information includes request information, or the first information includes request information and identification information of the terminal; the request information is used to determine a node device in communication with the terminal.

In the above embodiment, the request information is used for the terminal to request communication from the node device that receives the request information, and the node device performs feedback based on the request information, so that the terminal determines the node device capable of communication based on the feedback information.

With reference to some embodiments of the first aspect, in some embodiments, the first information is carried based on at least one of: physical layer control signaling; high-level control signaling; and (3) a reference signal.

With reference to some embodiments of the first aspect, in some embodiments, the first information includes request information and identification information of the terminal, and is carried based on the reference signal; the reference signal carries identification information of the terminal based on at least one of the following: cyclic shift, different cyclic shifts bear different identification information of the terminal; time-frequency domain resources, different time-frequency domain resources bear different identification information of the terminal.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes: the terminal receives a second signal and determines a quality parameter value of the second signal, wherein the second signal carries feedback information, and the feedback information is feedback information sent to the terminal by one or more node devices receiving the first information; the terminal selects a first node device corresponding to a signal with the maximum quality parameter value in the second signal as the node device for communication with the terminal.

In the above embodiment, the terminal measures the second signal carrying the feedback information, so as to learn the signal quality of the second signal sent by different node devices, and further select the node device that communicates with the terminal based on the quality of the second signal. The first node device corresponding to the signal with the maximum quality parameter value is selected as the node device for communication with the terminal, so that the communication quality between the subsequent terminal and the first node device can be ensured to meet the requirement.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes: receiving a third signal from the first node device, determining a quality parameter value of the third signal; or, in response to the quality parameter value of the third signal being less than or equal to a third threshold, reselecting a node device in communication with the terminal; and in response to the quality parameter value of the third signal being greater than a third threshold, maintaining communication between the terminal and the first node device.

In the above embodiment, after the first node device establishes communication connection with the terminal, if the quality parameters of the communication links of the first node device and the terminal do not meet the expected requirements, the terminal reselects the node device performing communication, thereby ensuring the communication quality of the terminal.

With reference to some embodiments of the first aspect, in some embodiments, the reselecting a node device in communication with the terminal includes: retransmitting the first information; the terminal re-receives the second signal, and determines a quality parameter value of the re-received second signal, wherein the re-received second signal carries feedback information, and the feedback information is feedback information sent to the terminal by one or more node devices receiving the re-sent first information; and the terminal selects a second node device corresponding to the signal with the maximum quality parameter value in the re-received second signals as the node device for communication with the terminal.

In the above embodiment, it is clear that in the case of reselection, the action determined based on the first information is re-executed on the communication node device, and in this way, reselection is performed, so as to ensure that the communication quality between the reselected node device and the terminal meets the requirement.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes: saving a quality parameter value of a second signal received when the first information is transmitted for the first time, wherein the saved quality parameter value of the second signal is larger than a third threshold value; the reselection of the node device in communication with the terminal includes: and the terminal selects second node equipment corresponding to a signal with a second largest quality parameter value in the second signal based on the stored quality parameter value of the second signal as node equipment for communication with the terminal.

In the above embodiment, by redetermining the node device based on the stored quality parameter value of the second signal received when the first information is transmitted for the first time, the redelivery of the first information can be reduced, causing additional resource overhead, as compared to redelivery of the first information and determination of the node device in communication with the terminal based on the redelivered first information.

With reference to some embodiments of the first aspect, in some embodiments, the resource of the terminal for transmitting the first information is determined based on at least one of the following resources: pre-configuring resources; a resource pool dedicated to the first information; and resources used for transmitting the first information are in a common resource pool.

With reference to some embodiments of the first aspect, in some embodiments, the quality parameter includes at least one of: a received signal strength indicator RSSI; reference signal received power RSRP; reference signal received quality RSRQ.

With reference to some embodiments of the first aspect, in some embodiments, the feedback information includes: and confirming the response information and/or the identification information of the node equipment.

In a second aspect, a communication method is provided, the method comprising: the node equipment receives first information, wherein the first information is information sent by the terminal under the condition that a first condition is met.

With reference to some embodiments of the second aspect, in some embodiments, the first condition is satisfied, including at least one of: the quality parameter value of the first signal is smaller than or equal to a first threshold value, the first signal is a signal sent by the network equipment, and the quality parameter value of the first signal is determined based on the measurement of the first signal by the terminal; and the network equipment does not send feedback information of second information to the terminal in the effective time, wherein the second information is information sent by the terminal to the network equipment.

With reference to some embodiments of the second aspect, in some embodiments, satisfying the first condition includes: and when the quality parameter value of the first signal is smaller than or equal to the first threshold value, different quality parameter values correspond to different first threshold values.

With reference to some embodiments of the second aspect, in some embodiments, the first condition is satisfied, further comprising: the quality parameter value of the first signal is greater than or equal to a second threshold, wherein the first signal is transmitted by the network device, and the first threshold is greater than the second threshold.

With reference to some embodiments of the second aspect, in some embodiments, the first information includes request information, or the first information includes request information and identification information of the terminal; the request information is used to determine a node device in communication with the terminal.

With reference to some embodiments of the second aspect, in some embodiments, the first information is carried based on at least one of: physical layer control signaling; high-level control signaling; and (3) a reference signal.

With reference to some embodiments of the second aspect, in some embodiments, the first information includes request information and identification information of the terminal, and is carried based on the reference signal; the reference signal carries identification information of the terminal based on at least one of the following: cyclic shift, different cyclic shifts bear different identification information of the terminal; time-frequency domain resources, different time-frequency domain resources bear different identification information of the terminal.

With reference to some embodiments of the second aspect, in some embodiments, the method further comprises: the node device sends a second signal, wherein the second signal carries feedback information of the first information.

With reference to some embodiments of the second aspect, in some embodiments, the method further comprises: the node device transmits a third signal, and terminates communication with the terminal when the quality parameter value of the third signal is less than or equal to a third threshold value; and if the quality parameter value of the third signal is greater than a third threshold value, communication with the terminal is maintained.

With reference to some embodiments of the second aspect, in some embodiments, the transmission resource of the first information is determined based on at least one of: pre-configuring resources; a resource pool dedicated to the first information; and resources used for transmitting the first information are in a common resource pool.

With reference to some embodiments of the second aspect, in some embodiments, the quality parameter includes at least one of: a received signal strength indicator RSSI; reference signal received power RSRP; reference signal received quality RSRQ.

With reference to some embodiments of the second aspect, in some embodiments, the feedback information includes: and confirming the response information and/or the identification information of the node equipment.

In a third aspect, an embodiment of the present disclosure provides a communication method, including: the terminal transmits the first information in case that the first condition is satisfied.

In a fourth aspect, there is provided a terminal comprising: and the receiving and transmitting module is used for receiving first information, wherein the first information is information sent by the terminal under the condition that the first condition is met.

In some embodiments, the first condition is satisfied, including at least one of: the terminal receives a first signal, determines that the quality parameter value of the first signal is smaller than or equal to a first threshold value, wherein the first signal is a signal sent by the network equipment, and the quality parameter value of the first signal is determined by the terminal measuring the first signal; and the terminal does not receive feedback information of the network equipment on the second information within the effective time, and the second information is sent to the network equipment by the terminal.

In some embodiments, satisfying the first condition includes the terminal determining that the quality parameter value of the first signal is less than or equal to a first threshold value; the different quality parameter values correspond to different first thresholds.

In some embodiments, the first condition is satisfied, further comprising: the terminal receives the first signal and determines that the quality parameter value of the first signal is greater than or equal to a second threshold value; wherein the first threshold is greater than the second threshold.

In some embodiments, the first information comprises request information, or the first information comprises request information and identification information of the terminal; the request information is used to determine a node device in communication with the terminal.

In some embodiments, the first information is carried based on at least one of: physical layer control signaling; high-level control signaling; and (3) a reference signal.

In some embodiments, the first information includes request information and identification information of the terminal, and is carried based on the reference signal; the reference signal carries identification information of the terminal based on at least one of the following: cyclic shift, different cyclic shifts bear different identification information of the terminal; time-frequency domain resources, different time-frequency domain resources bear different identification information of the terminal.

In some embodiments, the transceiver module is further to: and receiving a second signal, wherein the second signal carries feedback information, and the feedback information is feedback information sent to the terminal by one or more node devices receiving the first information.

In some embodiments, the terminal further comprises a processing module for determining a quality parameter value of the second signal; and selecting a first node device corresponding to a signal with the maximum quality parameter value in the second signal as the node device for communicating with the terminal.

In some embodiments, the transceiver module is further to: a third signal is received from the first node device and a quality parameter value of the third signal is determined.

In some embodiments, the processing module 6102 reselects the node device in communication with the terminal in case the quality parameter value of the third signal is less than or equal to the third threshold.

In some embodiments, the processing module 6102 maintains the terminal in communication with the first node device in the case where the quality parameter value of the third signal is greater than the third threshold.

In some embodiments, the processing module is further configured to save a quality parameter value of a second signal received when the first information is sent for the first time, where the saved quality parameter value of the second signal is greater than a third threshold value;

In the case of saving the quality parameter value of the second signal received when the first information is transmitted for the first time, the processing module 6102 reselects the node device that communicates with the terminal in the following manner: and selecting a second node device corresponding to a signal with a second largest quality parameter value in the second signal as a node device for communicating with the terminal based on the stored quality parameter value of the second signal.

In some embodiments, the resource that transmits the first information is determined based on at least one of the following: pre-configuring resources; a resource pool dedicated to the first information; resources in the common resource pool for transmitting the first information.

In some embodiments, the quality parameter comprises at least one of: RSSI, RSRP, RSRQ.

In some embodiments, the feedback information includes: and confirming the response information and/or the identification information of the node equipment.

In a fifth aspect, there is provided a node device comprising: and the receiving and transmitting module is used for receiving first information, wherein the first information is information sent by the terminal under the condition that the first condition is met.

In some embodiments, the first condition is satisfied, including at least one of: the quality parameter value of the first signal is smaller than or equal to a first threshold value, the first signal is a signal sent by the network equipment, and the quality parameter value of the first signal is determined based on the measurement of the first signal by the terminal; the network equipment does not send feedback information of second information to the terminal in the effective time, and the second information is information sent by the network equipment receiving terminal.

In some embodiments, satisfying the first condition includes: and when the quality parameter value of the first signal is smaller than or equal to the first threshold value, different quality parameter values correspond to different first threshold values.

In some embodiments, the first condition is satisfied, further comprising: the quality parameter value of the first signal is greater than or equal to a second threshold, wherein the first signal is transmitted by the network device, and the first threshold is greater than the second threshold.

In some embodiments, the transceiver module is further configured to send a second signal to the node device, where the second signal carries feedback information of the first information.

In some embodiments, the transceiver module is also used. The node equipment sends a third signal, and communication with the terminal is terminated under the condition that the quality parameter value of the third signal is smaller than or equal to a third threshold value; in case the quality parameter value of the third signal is larger than the third threshold value, communication with the terminal is maintained.

In some embodiments, the transmission resource of the first information is determined based on at least one of the following: pre-configuring resources; a resource pool dedicated to the first information; resources in the common resource pool for transmitting the first information.

In some embodiments, acknowledgement information, and/or identification information of the node device.

In a sixth aspect, there is provided a terminal comprising: one or more processors; the terminal is configured to perform the first aspect and any one of the communication methods of the first aspect.

In a seventh aspect, there is provided a node apparatus comprising: one or more processors; wherein the node device is configured to perform the second aspect and any one of the communication methods of the second aspect.

An eighth aspect provides a communication system comprising a terminal configured to implement any one of the first aspect and the communication method of the first aspect, and a node device configured to implement any one of the second aspect and the communication method of the second aspect.

A ninth aspect provides a storage medium storing instructions that when executed on a communication device cause the communication device to perform any one of the first and first aspects or any one of the second and second aspects.

In a tenth aspect, embodiments of the present disclosure propose a program product which, when executed by a communication device, causes the communication device to perform a method as described in the alternative implementation manner of the first or second aspect.

In an eleventh aspect, embodiments of the present disclosure propose a computer program which, when run on a computer, causes the computer to carry out the method as described in the alternative implementation of the first or second aspect.

In a twelfth aspect, embodiments of the present disclosure provide a chip or chip system. The chip or chip system comprises a processing circuit configured to perform the method described in accordance with an alternative implementation of the first or second aspect described above.

It will be appreciated that the terminal, the access network device, the first network element, the other network elements, the core network device, the communication system, the storage medium, the program product, the computer program, the chip or the chip system according to the embodiments of the present disclosure are all configured to perform the methods set forth in the embodiments of the present disclosure. Therefore, the advantages achieved by the method can be referred to as the advantages of the corresponding method, and will not be described herein.

The embodiment of the disclosure provides a communication method, a device, equipment and a storage medium. In some embodiments, terms of a communication method and an information processing method, a communication method, and the like may be replaced with each other, terms of a communication device and an information processing device, a communication device, and the like may be replaced with each other, and terms of an information processing system, a communication system, and the like may be replaced with each other.

The embodiments of the present disclosure are not intended to be exhaustive, but rather are exemplary of some embodiments and are not intended to limit the scope of the disclosure. In the case of no contradiction, each step in a certain embodiment may be implemented as an independent embodiment, and the steps may be arbitrarily combined, for example, a scheme in which part of the steps are removed in a certain embodiment may also be implemented as an independent embodiment, the order of the steps in a certain embodiment may be arbitrarily exchanged, and further, alternative implementations in a certain embodiment may be arbitrarily combined; furthermore, various embodiments may be arbitrarily combined, for example, some or all steps of different embodiments may be arbitrarily combined, and an embodiment may be arbitrarily combined with alternative implementations of other embodiments.

In the various embodiments of the disclosure, terms and/or descriptions in the various embodiments are consistent throughout the various embodiments and can be referenced to each other in the absence of any particular explanation or logic conflict, and the technical environments in the various embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

In the presently disclosed embodiments, elements that are referred to in the singular, such as "a," "an," "the," "said," etc., may mean "one and only one," or "one or more," "at least one," etc., unless otherwise indicated. For example, where an article (article) is used in translation, such as "a," "an," "the," etc., in english, a noun following the article may be understood as a singular expression or as a plural expression.

In the presently disclosed embodiments, "plurality" refers to two or more.

In some embodiments, terms such as "at least one of", "one or more of", "multiple of" and the like may be substituted for each other.

In some embodiments, "A, B" at least one of "," a and/or B "," a in one case, B in another case "," a in response to one case, B "in response to another case, etc., may include the following technical solutions, as appropriate: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments, execution is selected from a and B (a and B are selectively executed); in some embodiments a and B (both a and B are performed). Similar to the above when there are more branches such as A, B, C.

In some embodiments, the description modes such as "a or B" may include the following technical schemes according to circumstances: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments execution is selected from a and B (a and B are selectively executed). Similar to the above when there are more branches such as A, B, C.

The prefix words "first", "second", etc. in the embodiments of the present disclosure are only for distinguishing different description objects, and do not limit the location, order, priority, number, content, etc. of the description objects, and the statement of the description object refers to the claims or the description of the embodiment context, and should not constitute unnecessary limitations due to the use of the prefix words. For example, if the description object is a "field", the ordinal words before the "field" in the "first field" and the "second field" do not limit the position or the order between the "fields", and the "first" and the "second" do not limit whether the "fields" modified by the "first" and the "second" are in the same message or not. For another example, describing an object as "level", ordinal words preceding "level" in "first level" and "second level" do not limit priority between "levels". As another example, the number of descriptive objects is not limited by ordinal words, and may be one or more, taking "first device" as an example, where the number of "devices" may be one or more. Furthermore, objects modified by different prefix words may be the same or different, e.g., the description object is "a device", then "a first device" and "a second device" may be the same device or different devices, and the types may be the same or different; for another example, if the description object is "information", the "first information" and the "performance of each AI model" may be the same information or different information, and the contents thereof may be the same or different.

In some embodiments, "comprising a", "containing a", "for indicating a", "carrying a", may be interpreted as carrying a directly, or as indicating a indirectly.

In some embodiments, the terms "responsive to … …", "responsive to determination … …", "in the case of … …", "at … …", "when … …", "if … …", "if … …", and the like may be interchanged.

In some embodiments, terms "greater than", "greater than or equal to", "not less than", "more than or equal to", "not less than", "above" and the like may be interchanged, and terms "less than", "less than or equal to", "not greater than", "less than or equal to", "not more than", "below", "lower than or equal to", "no higher than", "below" and the like may be interchanged.

In some embodiments, the apparatuses and devices may be interpreted as entities, or may be interpreted as virtual, and the names thereof are not limited to those described in the embodiments, and may also be interpreted as "device (apparatus)", "device)", "circuit", "network element", "node", "function", "unit", "component (section)", "system", "network", "chip system", "entity", "body", and the like in some cases.

In some embodiments, a "network" may be interpreted as an apparatus comprised in the network, e.g. an access network device, a core network device, etc.

In some embodiments, the "access network device (access network device, AN device)" may also be referred to as a "radio access network device (radio access network device, RAN DEVICE)", "Base Station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", and in some embodiments may also be referred to as a "node)", "access point (access point)", "transmission point (transmission point, TP)", "Reception Point (RP)", "transmission and/or reception point (transmission/reception point), TRP)", "panel", "antenna panel (ANTENNA PANEL)", "antenna array (ANTENNA ARRAY)", "cell", "macro cell", "small cell (SMALL CELL)", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier (component carrier)", "bandwidth part (BWP)", etc.

In some embodiments, a "terminal" or "terminal device (TERMINAL DEVICE)" may be referred to as a "User Equipment (UE)", "user terminal" (MS) "," mobile station (MT) ", subscriber station (subscriber station), mobile unit (mobile unit), subscriber unit (subscore unit), wireless unit (wireless unit), remote unit (remote unit), mobile device (mobile device), wireless device (WIRELESS DEVICE), wireless communication device (wireless communication device), remote device (remote device), mobile subscriber station (mobile subscriber station), access terminal (ACCESS TERMINAL), mobile terminal (mobile terminal), wireless terminal (WIRELESS TERMINAL), remote terminal (remote terminal), handheld device (handset), user agent (user), mobile client (client), and the like.

In some embodiments, the acquisition of data, information, etc. may comply with laws and regulations of the country of locale.

In some embodiments, data, information, etc. may be obtained after user consent is obtained.

Furthermore, each element, each row, or each column in the tables of the embodiments of the present disclosure may be implemented as a separate embodiment, and any combination of elements, any rows, or any columns may also be implemented as a separate embodiment.

As shown in fig. 1A, the communication system 100 includes a terminal 101, a network device 102, and a node device 103.

In some embodiments, the terminal 101 includes at least one of, for example, a mobile phone (mobile phone), a wearable device, an internet of things device, a communication enabled car, a smart car, a tablet (Pad), a wireless transceiver enabled computer, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned-driving (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (SMART GRID), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (SMART CITY), a wireless terminal device in smart home (smart home), but is not limited thereto.

In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network, and the access network device may include at least one of an evolved NodeB (eNB), a next generation evolved NodeB (next generation eNB, ng-eNB), a next generation NodeB (next generation NodeB, gNB), a NodeB (node B, NB), a Home NodeB (HNB), a home NodeB (home evolved nodeB, heNB), a wireless backhaul device, a radio network controller (radio network controller, RNC), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a baseband unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open base station (Open RAN), a Cloud base station (Cloud RAN), a base station in other communication systems, an access node in a Wi-Fi system, but is not limited thereto.

In some embodiments, the technical solutions of the present disclosure may be applied to an Open RAN architecture, where an access network device or an interface in an access network device according to the embodiments of the present disclosure may become an internal interface of the Open RAN, and flow and information interaction between these internal interfaces may be implemented by using software or a program.

In some embodiments, the access network device may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the structure of the CU-DU may be used to split the protocol layers of the access network device, where functions of part of the protocol layers are centrally controlled by the CU, and functions of the rest of all the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU, but is not limited thereto.

In some embodiments, the core network device may be a device, including one or more network elements, or may be a plurality of devices or a device group, including all or part of one or more network elements. The network element may be virtual or physical. The core network comprises, for example, at least one of an evolved packet core (Evolved Packet Core, EPC), a 5G core network (5G Core Network,5GCN), a next generation core (Next Generation Core, NGC).

In some embodiments, the node device 103 may comprise at least one of a terminal, a node, or a network device.

In some embodiments, the nodes may include at least one of intermediate nodes, or auxiliary nodes, for example.

The intermediate node comprises, for example, at least one of: a relay device (relay), an integrated access and Backhaul Node (INTEGRATED ACCESS AND Backhaul Node, IAB Node), a UE, or a relay station (repeater) or the like.

The auxiliary node comprises, for example, at least one of: a relay, IAB Node, UE, or repeater, etc., a-IoT capable devices.

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are applicable to similar technical problems.

The embodiments of the present disclosure described below may be applied to the communication system 100 shown in fig. 1A, or a part of the main body, but are not limited thereto. The respective bodies shown in fig. 1A are examples, and the communication system may include all or part of the bodies in fig. 1A, or may include other bodies than fig. 1A, and the number and form of the respective bodies may be arbitrary, and the respective bodies may be physical or virtual, and the connection relationship between the respective bodies is examples, and the respective bodies may not be connected or may be connected, and the connection may be arbitrary, direct connection or indirect connection, or wired connection or wireless connection.

Embodiments of the present disclosure may be applied to long term evolution (Long Term Evolution, LTE), LTE-Advanced (LTE-a), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, fourth generation mobile communication system (4th generation mobile communication system,4G)), fifth generation mobile communication system (5th generation mobile communication system,5G), 5G New air interface (New Radio, NR), future Radio access (Future Radio Access, FRA), new Radio access technology (New-Radio Access Technology, RAT), new Radio (New Radio, NR), new Radio access (New Radio access, NX), future generation Radio access (Future generation Radio access, FX), global System for Mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (Ultra Mobile Broadband, UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, ultra-WideBand (UWB), bluetooth (registered trademark)), land public mobile network (Public Land Mobile Network, PLMN) network, device-to-Device (D2D) system, machine-to-machine (Machine to Machine, M2M) system, internet of things (Internet of Things, ioT) system, vehicle-to-eventing (V2X), system utilizing other communication methods, next generation system extended based on them, and the like. In addition, a plurality of system combinations (e.g., LTE or a combination of LTE-a and 5G, etc.) may be applied.

The environment Internet of things (Ambient Internet of Things, A-IoT) is a brand new technology of Internet of things. The number of terminals used in the a-IoT system (hereinafter, simply a-IoT terminals) is greater than that of conventional internet of things.

The a-IoT terminals include, for example, a-IoT User Equipment (UE), a-IoT devices (devices), a-IoT enabled devices represented by a-IoT tags (tags), and the like.

In some embodiments, a-IoT is used to inventory for a large number of large-scale items, i.e., upon meeting certain trigger conditions, corresponding data may be reported, including, for example, the following scenarios:

The a-IoT device reports evolved packet core network (Evolved Packet Core Network, EPC) codes, or sensed scenarios, to an access network device (e.g., a base station);

The A-IoT device reports the EPC code to the intermediate node, or a scene sensed with the intermediate node;

The a-IoT device reports EPC codes to the terminal, or a scenario of sensing with an intermediate node.

In some embodiments, the a-IoT devices are simpler in structure, lower in hardware cost, and lower in maintenance cost than narrowband internet of things (Narrow Band Internet of Things, NB-IoT) devices.

In some embodiments, a power device may or may not be included for the a-IoT terminal.

In some embodiments, the types for a-IoT terminals can be classified into the following-a), -B), and-C) three types:

-a) type device (DEVICE TYPE A) operating based on a backscatter (backscatter) mechanism, not supporting energy storage. It will be appreciated that since the-a) type device does not support energy storage, it is necessary to accept a Wireless signal (CW) to power the device, activate an internal receive processing module to start working, encode and modulate signaling, and/or data that the a-IoT device needs to upload.

-B) type devices (DEVICE TYPE B) operating based on the backscatter mechanism and supporting energy storage, but with a relatively limited energy storage capacity. The structural complexity and power consumption is high compared to-a) type devices, but still maintains a low level.

-A C) type device (DEVICE TYPE C) supporting energy storage, not requiring reception of CW for charging the device, active transmission using self-stored power, not working based on backscatter mechanism, and-C) type device also amplifying the transmitted information.

It should be noted that, working based on backscatter mechanisms means that the a-IoT device reflects the received CW, loads signaling to be transmitted and/or data onto the reflected wave and sends out the signaling, and the reflected wave and the CW share the same frequency or have a certain frequency offset (offset).

In some embodiments, radio frequency identification (Radio Frequency Identification, RFID) technology, the reader and tag are in direct communication and have a maximum read-write distance (also referred to as communication distance or coverage, etc.), typically 10 meters. The current maximum read-write distance cannot meet the communication distance requirements of the a-IoT devices.

In some embodiments, coverage for an a-IoT device may be measured based on communication distance. Typically, the maximum indoor scene communication distance between the a-IoT device and the other communication device is 10 to 50 meters, the maximum outdoor scene communication distance between the a-IoT device and the other communication device is 50 to 500 meters, and the communication between the a-IoT device and the other communicating network device comprises at least one of:

Communication between an a-IoT device and an access network device (e.g., a base station);

Communication between the a-IoT devices and nodes (e.g., intermediate nodes or auxiliary nodes);

Communication between a-IoT devices and terminals.

In some embodiments, to increase the communication distance between the a-IoT devices and the access network device (e.g., base station), communication is typically performed using the networking mode shown in fig. 1B, and/or fig. 1C, below.

Illustratively, fig. 1B is a schematic diagram of a networking mode architecture shown in accordance with an embodiment of the present disclosure. As shown in fig. 1B, a Base Station (BS) is connected to an intermediate node (INTERMEDIATE NODE), and both communicate upstream or downstream. The intermediate node is connected with the a-IoT device, both in upstream or downstream communication. The base station does not directly communicate upstream or downstream with the a-IoT devices.

Optionally, the intermediate node includes: a relay device (relay), an integrated access and Backhaul Node (INTEGRATED ACCESS AND Backhaul Node, IAB Node), a UE, or a relay station (repeater) or the like.

Illustratively, fig. 1C is a schematic diagram of a networking mode architecture shown in accordance with an embodiment of the present disclosure. As shown in fig. 1C, a Base Station (BS) connects with an a-IoT device through an auxiliary node (assiting node), both in upstream communication.

Optionally, the auxiliary node comprises: a relay, IAB Node, UE, or repeater, etc., a-IoT capable devices.

Thus, it can be seen that in the networking mode described above, communication transmissions between the a-IoT devices and the base station are required through the nodes (intermediate nodes or auxiliary nodes). But how the node chooses to determine is a problem to be solved.

Note that the node device 103 may include at least one of a network device, a terminal, or a node. The Node may be, for example, a relay, IAB Node, UE, or repeater, among other a-IoT capable devices. Thus, in some embodiments, the terms "auxiliary node device," "node," "intermediate node device," and the like may be used interchangeably to refer to one or more a-IoT capable devices.

Fig. 2 is a schematic diagram illustrating a communication method interaction according to an embodiment of the present disclosure. As shown in fig. 2, embodiments of the present disclosure relate to a communication method for a communication system 100, the method including:

In step S2101, the terminal 101 performs communication interaction with the network apparatus 102.

In some embodiments, the terminal 101 is in communication interaction with the network device 102, which may be, for example, the network device 102 sending a first signal to the terminal 101.

In some embodiments, the terminal 101 is in communication interaction with the network device, for example, it may be that the terminal sends the second information to the network device 102, and the network device sends feedback information of the second information to the terminal 101 based on the second information.

In some embodiments, the device that performs communication interaction with the terminal 101 in step S2101 is not limited to the network device 102, but may be another node device, i.e., the terminal may communicate with the network device through the node device.

In some embodiments, step S2101 may be omitted.

In step S2102, the terminal 101 transmits first information to the node apparatus 103 in the case where the first condition is satisfied.

In some embodiments, node device 103 may comprise one or more node devices.

In some embodiments, the node device 103 receives the first information sent by the terminal 101 if the first condition is met.

In some embodiments, terms such as "send," "transmit," "report," "send," "transmit," "bi-directional," "send and/or receive," and the like may be used interchangeably.

In some embodiments, "acquire," "obtain," "receive," "transmit," "bi-directional transmit," "send and/or receive" may be used interchangeably and may be interpreted as receiving from other principals, acquiring from protocols, acquiring from higher layers, processing itself, autonomous implementation, etc.

In some embodiments, terminal 101 is an A-IOT enabled device having communication association with node device 103, including, for example: a-IoT device.

In some embodiments, the "terminals" and "A-IOT devices" may be interchanged.

Alternatively, in the case where the first condition is satisfied, the terminal 101 transmits first information for finding (discover, or find) a node device that communicates with the a-IOT device.

Alternatively, in case the first condition is fulfilled, the terminal 101 sends first information to the node devices 103, wherein the first information is used for finding, among the one or more node devices, a node capable of communicating with the terminal 101.

It will be appreciated that in the event that the signal quality of the communication interaction of the terminal 101 with the network device 102 is poor, a procedure for finding (or discovering) a node device is initiated. In step S2101, when the quality of the signal of the communication interaction between the terminal 101 and the other node device is poor, a process of searching (or discovering) the node device may be initiated.

For ease of understanding, in the following embodiments, an introduction will be made regarding a process of initiating a process of searching for a node device through a scenario in which the terminal 101 communicates and interacts with the network device 102.

In some embodiments, the terms "find", "determine" or "request" may be interchanged.

In some embodiments, words such as "first information," "discovery information," "request information," "auxiliary request information," and the like may be interchanged.

For example, the first information may be referred to as discovery information or assistance request information, and the terminal 101 triggers a discovery procedure of the node device in case the first condition is satisfied.

In some embodiments, the first information comprises request information, or request information and identification information of the terminal 101, wherein the request information is used to request the node to communicate with the terminal 101.

Illustratively, the request information is used to request one or more node devices to communicate with the terminal 101.

It will be appreciated that communication is requested from one or more node devices and that it may be determined which node devices may be selected by the terminal 101 as the first node device. For example, the terminal 101 finds N node devices (where N is an integer greater than 1 and N is less than or equal to M) with which to communicate among M node devices (where M is an integer greater than 1) through the first information, and further, the terminal may determine the first node device based on a preset rule (e.g., select a node device with the best signal quality as the first node device) among the N node devices.

In some embodiments, the first information is carried based on at least one of: physical layer control signaling, higher layer control signaling, and reference signals.

For example, the request information is carried using physical layer control signaling. The request information and the identification information of the terminal 101 are carried using physical layer control signaling.

In some embodiments, in case the first information comprises the request information and the identification information of the terminal 101 and is carried based on a reference signal, the reference signal carries the identification information of the terminal 101 based on at least one of: cyclic shift, and/or time-frequency domain resources.

Alternatively, the cyclic shift based bearer terminal 101 includes: different cyclic shifts carry different identification information of the terminal 101.

Optionally, carrying the identification information of the terminal 101 based on the time-frequency domain resource includes: different time-frequency domain resources carry identification information of different terminals 101.

In some embodiments, the resources of the terminal 101 that transmit the first information are determined based on at least one of the following resources: pre-configuring resources; a resource pool dedicated to the first information; resources in the common resource pool for transmitting the first information.

It is to be understood that the resources may be preconfigured based on network devices, and the network devices configured for the resources may be one or more network devices in the node device 103, or may be other network devices except the node device 103.

In some embodiments, the first condition is satisfied, comprising at least one of the following-a) or-b):

-a) the terminal 101 receives a first signal having a quality parameter value smaller than or equal to a first threshold value, wherein the first signal is a signal transmitted by a network device currently having a communication connection with the terminal 101.

-B) the terminal 101 does not receive feedback information of the second information from the network device within the validity time, the second information being sent by the terminal 101 to the network device currently having a communication connection with the terminal 101. It is to be understood that the first condition is satisfied, i.e. it can be regarded that in the scenario where the terminal 101 performs communication interaction with the network device 102, the communication quality of the communication link between the terminal 101 and the network device 102 satisfies a certain trigger condition.

For example, for-a):

It will be appreciated that, for the case-a), it may be understood that in the scenario where the terminal 101 performs communication interaction with the network device 102, in the case where the terminal 101 receives that the quality parameter of the first signal sent by the network device 102 is less than or equal to the first threshold (for example, in the case where the terminal 101 measures that the quality parameter of the first signal is less than or equal to the first threshold), it may be understood that in some embodiments, the quality of the communication link between the terminal 101 and the network device (network device 102) with which the terminal has communication association does not meet the preset requirement. That is, in the case where the above-mentioned communication link quality does not satisfy the preset requirement, the first condition is satisfied. In the event that the first condition is satisfied, the terminal 101 thus determines, among the node devices 103, a node device that can be used for communication as a node (intermediate node or auxiliary node), thereby performing communication.

In some embodiments, the quality parameters include: a received signal strength Indication (RECEIVED SIGNAL STRENGTH Indication, RSSI), a reference signal received Power (REFERENCE SIGNAL RECEIVED Power, RSRP), or a reference signal received Quality (REFERENCE SIGNAL RECEIVED Quality, RSRQ), etc.

It is understood that the quality parameter values can also be understood as: the value of RSSI, the value of RSRP, or the value of RSRQ, etc.

In some embodiments, different quality parameter values correspond to different first thresholds.

Illustratively, the value of RSRP corresponds to a first RSRP threshold, the value of RSSI corresponds to a first RSSI threshold, and the value of RSRQ corresponds to a first RSRQ threshold. The first RSRP threshold, the first RSSI threshold, and the first RSRQ threshold may be understood as different first thresholds corresponding to different quality parameter values, respectively, and the value ranges corresponding to the first RSRP threshold, the first RSSI threshold, and the first RSRQ threshold are different.

In some embodiments, the terminal 101 may determine the quality of the first signal by measuring a value in a quality parameter of the first signal.

In some embodiments, the terminal 101 may determine the quality of the first signal by measuring a value of a certain quality parameter of the plurality of quality parameters of the first signal.

For example, the terminal 101 determines the quality of the first signal by measuring the value of the RSSI of the first signal and determining the quality of the first signal based on a magnitude relationship between the value of the RSSI of the first signal and the first RSSI threshold (e.g., the value of the RSSI of the first signal is less than the first RSSI threshold, then it is determined that the quality of the first signal does not meet the requirements, etc.).

In some embodiments, the terminal 101 may determine the quality of the first signal by measuring values of a plurality of quality parameters among the quality parameters of the first signal.

For example, the terminal 101 determines the quality of the first signal by measuring the value of RSSI of the first signal, and the value of RSRP, and based on a preset rule.

The preset rule provides that in case the value of the RSSI of the first signal is greater than the first RSSI threshold and the value of the RSRP is greater than the threshold of the first RSRP, it is determined that the quality of the first signal meets the requirements, etc. For another example, the terminal 101 determines the quality of the first signal, etc., by measuring the value of RSSI, the value of RSRP, and the value of RSRQ of the first signal, and based on a preset rule.

Wherein, the preset rule may specify: and determining that the quality of the first signal meets the requirement when the values of part of the quality parameters of the values of the quality parameters in the first signal are larger than or equal to the corresponding first threshold values. For example, the preset rule specifies that, for the value of the RSSI of the first signal, the value of the RSRP, and the value of the RSRQ, the value of the RSSI of the first signal is greater than or equal to the first RSSI threshold, and the value of the RSRP of the first signal is greater than or equal to the first RSRP threshold, then it is determined that the quality of the first signal meets the requirements. Or the preset rule specifies that for the value of the RSSI, the value of the RSRP and the value of the RSRQ of the first signal, the RSSI of the first signal is larger than or equal to a first RSSI threshold value, and the quality of the first signal is determined to meet the requirement.

The preset rules may also specify: and determining that the quality of the first signal meets the requirement when the values of all the quality parameters of the values of the quality parameters in the first signal are larger than or equal to the corresponding first threshold values. For example, the preset rule specifies that, for the value of the RSSI of the first signal, the value of the RSRP, and the value of the RSRQ, only the value of the RSSI of the first signal is greater than or equal to the first RSSI threshold, the value of the RSRP of the first signal is greater than or equal to the first RSRP threshold, and the value of the RSRQ of the first signal is greater than or equal to the first RSRQ threshold, then it is determined that the quality of the first signal meets the requirements.

For another example, the terminal 101 determines the quality of the first signal, etc., by measuring the value of RSSI and the value of RSRQ of the first signal and based on a preset rule.

For another example, the terminal 101 determines the quality of the first signal, etc., by measuring the value of RSRQ and the value of RSRP of the first signal, and based on a preset rule.

In some embodiments, the first threshold is determined in at least one of the following ways: determining, based on pre-configuration information sent by the network device, the pre-configuration information being used to configure a first threshold; determining based on a predefined specification; the third information is determined based on third information sent by the network device, the third information being used to indicate the first threshold (e.g., the third information is indication information).

It should be noted that, the network device that transmits the preconfigured information may refer to a network device capable of transmitting the preconfigured information, including the network device referred to in the network device 102 in the embodiment of fig. 2, and/or a network device other than the network device referred to in the network device 102.

In some embodiments, the first condition is satisfied, further comprising: the terminal 101 receives a first signal having a quality parameter value greater than or equal to the second threshold.

Illustratively, taking terminal 101 as a passive a-IOT device, satisfying the first condition includes, in addition to receiving the first signal with a quality parameter value less than or equal to a first threshold value: the terminal 101 receives a first signal having a quality parameter value greater than or equal to the second threshold.

Alternatively, a passive A-IOT device may be understood as a type-A) device, or a type-B) device, as described above.

That is, in the case that the terminal 101 is a type-a) device, or a type-B) device, the satisfaction of the first condition further includes: the terminal 101 receives a first signal having a quality parameter value greater than or equal to the second threshold.

It will be appreciated that the passive a-IOT device is activated to operate as it charges the device based on CW. Thus, the internal module can only be activated to operate if the energy acquired by the passive a-IOT device based on CW exceeds a certain threshold. Based on this, a second threshold is set, which can be understood as the minimum energy threshold for passive a-IOT to operate.

It will be appreciated that the second threshold value for a type-a) device and the second threshold value for a type-B) device may be the same or different.

For another example, for-b):

It is to be understood that, for the case of-b), it may be understood that, in the scenario where the terminal 101 performs communication interaction with the network device 102, the terminal 101 sends the second information to the network device having communication association, and does not receive feedback information of the network device for the second information within a valid time. In some embodiments it may be understood that the interruption or delay of communication between the terminal 101 and the network device exceeds a preset requirement. That is, the first condition is triggered to be satisfied in case the communication between the terminal 101 and the network device is interrupted or the time delay exceeds a preset requirement.

In some embodiments, for the case of-b), the terminal 101, before transmitting the first information, further comprises: the terminal 101 transmits the second information to the network device having communication association.

Optionally, the second information includes, for example: at least one of data, control information, or random numbers.

In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "instruction", "command", "channel", "parameter", "field", "symbol", "codebook", "code word", "code point", "codepoint", "bit", "data", "program", "chip", and the like may be replaced with each other.

In some embodiments, terms such as "radio," "wireless," "radio access network," "RAN," and "RAN-based" may be used interchangeably.

In some embodiments, terms such as "time of day," "point of time," "time location," and the like may be interchanged, and terms such as "duration," "period," "time window," "time," and the like may be interchanged.

In step S2103, the node apparatus 103 transmits a second signal to the terminal 101.

In some embodiments, the node device of the node devices 103 that receives the first information sends a second signal to the terminal 101.

In some embodiments, the second signal carries feedback information, which is feedback information sent by the node device 103 that received the first information to the terminal 101.

It is appreciated that in step S2101, the node device 103 is one or more a-IoT capable devices. The terminal 101 sends the first signal to the node device 103, which is understood as the terminal 101 sending the first information to one or more a-IoT capable devices. And among the one or more a-IoT capable devices, the device that received the first information may be understood as the node device that received the first information among the node devices 103.

Optionally, the feedback information includes: acknowledgement information (ACK), and/or identification information of the node device.

In some embodiments, terminal 101 receives feedback information sent by node device 103.

In some embodiments, node device 103 sends feedback information to the A-IOT device.

In some embodiments, the A-IOT device receives feedback information sent by node device 103.

Alternatively, the node device 103 sends feedback information to the terminal 101 based on the received first information.

It is understood that the node device 103 transmits feedback information to the terminal based on the first information transmitted by the terminal 101, so that the terminal 101 can determine the first node device among the node devices that have transmitted the feedback information.

In step S2104, the terminal 101 determines a first node apparatus.

In some embodiments, where the feedback information is carried on the second signal, after the terminal 101 receives the feedback information, the terminal 101 determines a quality parameter value of the second signal (e.g., the terminal 101 measures the second signal to obtain the quality parameter value of the second signal), and determines the first node device based on the quality parameter of the second signal.

In some embodiments, the feedback information is, for example, acknowledgement (ACK).

In some embodiments, the terminal 101 may determine the quality of the second signal by measuring a value of one of the quality parameters of the second signal.

For example, the terminal 101 determines the quality of the first signal by measuring the value of the RSSI of the first signal and determining the quality of the first signal based on a magnitude relationship between the value of the RSSI of the second signal and the third RSSI threshold (e.g., the value of the RSSI of the second signal is less than the third RSSI threshold, then it is determined that the quality of the second signal does not meet the requirements, etc.).

In some embodiments, the terminal 101 may determine the quality of the first signal by measuring values of a plurality of quality parameters of the second signal.

For example, the terminal 101 determines the quality of the second signal by measuring the value of the RSSI of the second signal, and the value of the RSRP, and based on a preset rule (e.g., the preset rule specifies that, in the case where the value of the RSSI of the second signal is greater than the third RSSI threshold, and the value of the RSRP is greater than the threshold of the third RSRP, the quality of the first signal is determined to satisfy the requirement, etc.).

For another example, the terminal 101 determines the quality of the second signal, etc., by measuring the value of RSSI, the value of RSRP, and the value of RSRQ of the second signal, and based on a preset rule.

For another example, the terminal 101 determines the quality of the second signal, etc., by measuring the value of RSSI and the value of RSRQ of the second signal, and based on a preset rule.

For another example, the terminal 101 determines the quality of the first signal, etc., by measuring the value of RSRQ and the value of RSRP of the second signal, and based on a preset rule.

Alternatively, the first node device is determined based on the second signal quality parameter, including, for example, selecting the node device with the largest value of the quality parameter of the second signal as the node device (i.e., the first node device) in communication with the terminal 101.

It will be appreciated that the node device with the highest value of the quality parameter of the second signal is selected as the first node device. That is, the terminal 101 selects, as the first node device, a node device (one or more node devices) having the best signal quality among the node devices 103 that transmit the second signal.

Alternatively, in the case where the largest quality parameter value of the second signal corresponds to a plurality of node devices, the terminal 101 selects one of the node devices as the first node device based on its own implementation.

In some embodiments, the terminal 101 may further retain information of other node devices in the case of determining the first node device, where the other node devices are node devices that satisfy the quality parameter value of the second signal being greater than the third threshold.

It can be understood that by performing the screening of the quality parameter values of the second signals on the plurality of node devices, other node devices with the quality of the second signals meeting the preset requirements can be screened out and used as candidate devices of the first node device. Thus, in some embodiments, when a handover is required for a first node device, a new first node device may be determined from other node devices based on information that retains the other node devices.

In some embodiments, the terminal 101 may also perform a reselection of the first node device after determining the first node device.

It will be appreciated that after the terminal 101 determines the first node device, it may determine whether to perform a reselection of the first node device based on the current communication quality. Including, for example, after determining the first node device, the terminal 101 performs reselection of the first node device if the quality of real-time communication between the first node device and the terminal 101 becomes unsatisfactory.

Optionally, the terminal 101 receives a third signal from the first node device.

It will be appreciated that in this case, the terminal 101 has determined the first node device from the node devices 103 and made a communication connection. The third signal may be understood as a signal communicated between the terminal 101 and the node device.

Optionally, in case the quality parameter value of the third signal is smaller than or equal to the third threshold value, the node device in communication with the terminal 101 is reselected.

It will be appreciated that in the case where the value of the quality parameter of the third signal is less than or equal to the third threshold value, it may be understood that the terminal 101 is not communicating with the first node device with good quality, in which case the first node device reselection is performed.

Optionally, in case the quality parameter value of the third signal is larger than the third threshold value, the terminal 101 is kept in communication with the first node device.

It will be appreciated that in case the quality parameter value of the third signal is greater than the third threshold value, it may be understood that the terminal 101 is communicating with the first node device with good quality, in which case no reselection is performed by the first node device.

In some embodiments, the reselection of the first node device for terminal 101 may be performed by either 1) or 2) of the following:

1) The first information is not retransmitted, and the second node device after reselection is determined as a node device for communication with the terminal 101 based on the node device information stored in advance.

2) The first information is retransmitted and the reselected second node device is determined as the node device communicating with the terminal 101.

For 1):

In some embodiments, a quality parameter value of a second signal received when the first information is transmitted is saved, wherein the saved quality parameter value of the second signal is greater than a third threshold.

It will be appreciated that the third threshold is a threshold set for a quality parameter of the second signal. The quality parameter value can also be understood as: the value of RSSI, the value of RSRP, or the value of RSRQ, etc.

In some embodiments, the different quality parameter values correspond to different third thresholds.

Illustratively, the value of the third RSRP corresponds to a third RSRP threshold, the value of the RSSI corresponds to a third RSSI threshold, and the value of the RSRQ corresponds to a third RSRQ threshold. The third RSRP threshold, the third RSSI threshold and the third RSRQ threshold may be understood as different third thresholds corresponding to different quality parameter values, respectively. Based on this, the communication link quality between each node device and the terminal 101 acquired when the first information is transmitted for the first time can be acquired, and further the first node device after reselection can be determined based on the communication link quality.

Illustratively, reselecting a node device in communication with the terminal 101 includes: the terminal 101 selects, as the node device that communicates with the terminal 101, the node device corresponding to the signal having the second largest quality parameter value among the second signals, based on the stored quality parameter values of the second signals.

It will be appreciated that, based on the stored information, the node device having the second best quality of the communication link between each node device acquired when the first information is transmitted for the first time and the terminal 101 is determined and used as the first node device of the terminal 101.

For 2):

it will be appreciated that 2) the selection of the first node device based on the first information is performed again.

In some embodiments, the terminal 101 may repeat the related embodiments of step S2102 to step S2103 again to reselect the first node device.

Illustratively, in the case of 2), the first node device after the re-establishment is determined by: the terminal 101 resends the first information; the terminal 101 re-receives the second signal, determines a quality parameter value of the re-received second signal, and selects a second node device corresponding to a signal of the maximum quality parameter value among the re-received second signals as the first node device.

Optionally, the second signal re-received by the terminal 101 carries feedback information, where the feedback information is feedback information re-sent by the receiving node device 103.

In some embodiments, terms such as "specific (certains)", "predetermined (preseted)", "preset", "set", "indicated (indicated)", "certain", "arbitrary", "first", and the like may be replaced with each other, and "specific a", "predetermined a", "preset a", "set a", "indicated a", "certain a", "arbitrary a", "first a" may be interpreted as a predetermined in a protocol or the like, may be interpreted as a obtained by setting, configuring, or indicating, or the like, may be interpreted as specific a, certain a, arbitrary a, or first a, or the like, but are not limited thereto.

The communication method according to the embodiment of the present disclosure may include at least one of step S2101 to step S2104. For example, step S2101 may be implemented as a separate embodiment, step S2102 may be implemented as a separate embodiment, step S2101+step S2102 may be implemented as a separate embodiment, and step S2101+step S2102+step S2103 may be implemented as a separate embodiment, but is not limited thereto.

In some embodiments, step S2101, step S2102, step S2103 may be performed in exchange order or simultaneously.

In some embodiments, step S2101, step S2102, step S2104 may be performed in exchange order or simultaneously.

In some embodiments, step S2101, step S2103, step S2104 may be performed in exchange order or simultaneously.

In some embodiments, step S2102, step S2103, step S2104 may be performed in exchange order or simultaneously.

Fig. 3A is a flow chart diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in fig. 3A, an embodiment of the present disclosure relates to a communication method, the method including:

In step S3101, when the first condition is satisfied, the first information is transmitted.

Alternative implementations of step S3101 may refer to alternative implementations of step S2101 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

In step S3102, a second signal is received.

Alternative implementations of step S3102 may refer to alternative implementations of step S2102 in fig. 2, and other relevant parts in the embodiment related to fig. 2, which are not described herein.

In step S3103, the first node apparatus is determined.

Alternative implementations of step S3103 may refer to alternative implementations of step S2103 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

The communication method according to the embodiment of the present disclosure may include at least one of step S3101 to step S3103. For example, step S3101 may be implemented as a separate embodiment, step S3102 may be implemented as a separate embodiment, step S3101+step S3102 may be implemented as a separate embodiment, and step S3101+step S3102+step S3103 may be implemented as a separate embodiment, but is not limited thereto.

In some embodiments, step S3101, step S3102 may be performed in exchange for one another or simultaneously.

In some embodiments, step S3102, step S3103 may be performed in exchange for one another or simultaneously.

In some embodiments, step S3101, step S3103 may be performed in exchange for one another or simultaneously.

In some embodiments, steps S3101, S3102 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, steps S3101, S3103 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, steps S3102, S3103 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

Fig. 3B is a flow chart diagram of a communication method shown in accordance with an embodiment of the present disclosure. As shown in fig. 3B, an embodiment of the present disclosure relates to a communication method, the method including:

In step S3201, when the first condition is satisfied, first information is transmitted.

Alternative implementations of step S3201 may refer to alternative implementations of step S2101 of fig. 2, alternative implementations of step S2102 and step S2103, and alternative implementations of step S3101 of fig. 3A, step S3102, and other relevant parts in the embodiments related to step S3103, fig. 2, and fig. 3A, and are not described herein.

In some embodiments, the first information is used to find a node device in communication with the terminal, the node device comprising one or more node devices.

In some embodiments, the terminal receives a first signal, determines that a quality parameter value of the first signal is less than or equal to a first threshold, and the first signal is a signal sent by the network device; and the terminal does not receive feedback information of the network equipment on the second information within the effective time, and the second information is sent to the network equipment by the terminal.

In some embodiments, the first threshold is determined in at least one of the following ways: determining, based on pre-configuration information sent by the node device, pre-configuration information for configuring the first threshold; determining based on a predefined specification; and determining, based on third information sent by the node device, third information for indicating the first threshold.

In some embodiments, the method further comprises: the terminal receives the second signal and determines a quality parameter value of the second signal, the second signal carries feedback information, and the feedback information selects a first node device corresponding to a signal with the maximum quality parameter value in the second signal as a node device for communicating with the terminal for feedback information sent to the terminal by one or more node devices receiving the first information.

In some embodiments, the method further comprises: receiving a third signal from the first node device, determining a quality parameter value of the third signal; reselecting a node device in communication with the terminal in response to the quality parameter value of the third signal being less than or equal to a third threshold value; or, in response to the quality parameter value of the third signal being greater than the third threshold, maintaining communication between the terminal and the first node device.

In some embodiments, reselecting a node device in communication with a terminal includes: retransmitting the first information; the terminal re-receives the second signal, determines the quality parameter value of the re-received second signal, and the re-received second signal carries feedback information, wherein the feedback information selects a second node device corresponding to a signal with the maximum quality parameter value in the re-received second signal for one or more node devices receiving the re-sent first information and sending the feedback information to the terminal as the feedback information terminal of the terminal, and the second node device is used as the node device for communicating with the terminal.

In some embodiments, the method further comprises: saving a quality parameter value of a second signal received when the first information is transmitted for the first time, wherein the saved quality parameter value of the second signal is larger than a third threshold value; a node device for reselecting communication with a terminal, comprising: the terminal selects a second node device corresponding to a signal with a second largest quality parameter value in the second signal based on the stored quality parameter value of the second signal as the node device for communication with the terminal.

In some embodiments, the resource of the terminal transmitting the first information is determined based on at least one of the following resources: pre-configuring resources; a resource pool dedicated to the first information; resources in the common resource pool for transmitting the first information.

In some embodiments, the quality parameter comprises at least one of: a received signal strength indicator RSSI; reference signal received power RSRP; reference signal received quality RSRQ.

Fig. 4A is a flow diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in fig. 4A, an embodiment of the present disclosure relates to a communication method, the method including:

in step S4101, first information is received.

In some embodiments, the first information is information sent by the terminal if the first condition is met, wherein the first information is used to determine a network device that communicates with the terminal, and the network device is a network device that communicates with the terminal based on the first information.

Alternative implementations of step S4101 may refer to alternative implementations of step S2101 of fig. 2, alternative implementations of step S3101 of fig. 3A, and other relevant parts in the embodiments related to fig. 2 and 3A, which are not described here again.

Step S4102, a second signal is transmitted.

Alternative implementations of step S4102 may refer to alternative implementations of step S2102 in fig. 2, alternative implementations of step S3102 in fig. 3A, and other relevant parts in the embodiments related to fig. 2 and 3A, which are not described herein.

The communication method according to the embodiment of the present disclosure may include at least one of step S4101 to step S4102. For example, step S4101 may be implemented as a separate embodiment, step S4102 may be implemented as a separate embodiment, and step S4101+step S4102 may be implemented as a separate embodiment, but is not limited thereto.

In some embodiments, step S4101, step S4102 may be performed in exchange order or simultaneously.

In some embodiments, step S4101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S4102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

Fig. 4B is a flow chart diagram of a communication method shown in accordance with an embodiment of the present disclosure. As shown in fig. 4B, an embodiment of the present disclosure relates to a communication method, the method including:

In step S4201, the first information is received.

Alternative implementations of step S4101 may refer to alternative implementations of step S2101 of fig. 2, step S3101 of fig. 3A, alternative implementations of step S4101 of fig. 4A, and other relevant parts in the embodiments related to fig. 2, 3A, and 4A, which are not described herein.

In some embodiments, the first condition is satisfied, further comprising: the quality parameter value of the first signal is greater than or equal to a second threshold, wherein the first signal is transmitted by the node device, and the first threshold is greater than the second threshold.

In some embodiments, further comprising: the node device sends a second signal, wherein the second signal carries feedback information of the first information.

In some embodiments, further comprising: the node equipment sends a third signal, and communication with the terminal is terminated under the condition that the quality parameter value of the third signal is smaller than or equal to a third threshold value; in case the quality parameter value of the third signal is larger than the third threshold value, communication with the terminal is maintained.

In some embodiments, the transmission resource of the first information is determined based on at least one of the following: pre-configuring resources; a resource pool dedicated to the first information; and resources used for transmitting the first information are in a common resource pool.

In some embodiments, the quality parameter comprises at least one of: RSSI; RSRP; RSRQ.

In some embodiments, the feedback information includes: acknowledgement information, and/or identification information of the node device.

Fig. 5 is an interactive schematic diagram of a task processing method according to an embodiment of the disclosure. As shown in fig. 5, embodiments of the present disclosure relate to a communication method, the method including,

In step S5101, when the first condition is satisfied, first information is transmitted.

In some embodiments, the first information is used to determine a network device in communication with the terminal.

Alternative implementations of step S5101 may be referred to as step S2101, step S2102, step S2103 and alternative implementations of step S2104 in fig. 2, and other relevant parts in the embodiment related to fig. 2, which are not described herein.

In some embodiments, the method may include the method described in the embodiments of the communication system side, the terminal side, the network device side, and so on, which are not described herein.

In some embodiments, the disclosed embodiments also provide a communication method for improving coverage of a network device and improving a communication distance between the network device and an a-IOT device.

In some embodiments, a first network device is discovered by communicating with the first network device based on an A-IOT device, thereby increasing a communication distance between the network device and the A-IOT device.

Alternatively, the first network device may be at least one of an access network device, an intermediate node, or an auxiliary node.

In some embodiments, the first network device has an A-IOT device determined from one or more network devices.

In some embodiments, the discovery (or determination) process of the a-IOT device to determine the first network device is triggered based on one or more of the following conditions:

1) In the event of limited coverage between the network device and the a-IOT device, the a-IOT device triggers a discovery process for the first network device.

2) When the A-IOT equipment sends information to the network equipment, the information fed back by the network equipment is not received in the effective time.

For 1):

In some embodiments, when the a-IOT device measures the RSSI value, or RSRP value, of the received signal and the measured value is less than threshold 1 and greater than threshold 2, then the a-IOT device triggers the discovery process of the first network device.

Optionally, the threshold 1 is preconfigured or predefined by the network device or the threshold 1 is dynamically indicated by the control information.

Alternatively, threshold 2 is determined based on the implementation of the A-IOT device itself.

Optionally, the threshold 2 is pre-configured or predefined by the network device or dynamically indicated by the control information.

It will be appreciated that for-a) type devices and-B) type devices, a threshold 2 is introduced, which threshold 2 is the lowest energy threshold for the a-IOT device to charge and operate the a-IOT device, and for-a) type devices and-B) type devices, the value of this threshold 2 may be the same or different, -C) type devices do not require this threshold 2.

Alternatively, threshold 1 and threshold 2 are different for measuring RSSI or measuring RSRP values.

In some embodiments, when the a-IOT device measures the RSSI value, or RSRP value, of the received signal and the measured value is less than a threshold of 1, the a-IOT device triggers a discovery process for the first network device.

For 2):

In some embodiments, when the a-IOT device sends data or control information or a random number to the network device, but does not receive information fed back by the network device (such as acknowledgement information ACK) within the valid time T, the a-IOT device triggers the discovery process of the first network device.

In some embodiments, the target node is determined based on the following:

When the 1 or more conditions are met, the A-IOT device triggers a discovery process of the first network device, and the A-IOT device sends a discovery message (or an auxiliary request message), or the A-IOT device sends the discovery message and Identification (ID) information of the A-IOT device;

the a-IOT capable device, upon receiving the discovery message (or assistance request message), feeds back an acknowledgement message (e.g., ACK) and/or an ID message;

The A-IOT equipment measures RSSI or RSRP values of received signals, network equipment corresponding to signals with RSSI measured values or RSRP measured values being greater than or equal to a preset threshold value 3 is used as candidate first network equipment, the RSSI measured values or RSRP measured values are ranked from large to small or from small to large, the RSSI measured values or RSRP measured values correspond to ID (such as destination ID) information of the equipment, and a candidate list of 1 available first network equipment is determined;

And selecting the device corresponding to the largest RSSI or RSRP measured value to establish connection, and taking the device as 1 first network device. When there is a maximum RSSI or RSRP measurement corresponding to multiple devices, then the a-IOT device selects 1 device as the first network device based on its implementation.

Optionally, the discovery message (or assistance request message) is based on at least one bearer of:

Using physical layer control signaling to carry discovery messages (auxiliary request messages), or to carry discovery messages (auxiliary request messages) and ID information of a-IOT devices;

using higher layer signaling to carry discovery messages (auxiliary request messages), or to carry discovery messages (auxiliary request messages) and ID information of a-IOT devices;

The reference signal is used to carry the discovery message (auxiliary request message) or the reference signal is used to carry both the discovery message (auxiliary request message) and the ID information of the a-IOT device.

Optionally, the reference signal is a sequence, and a cyclic shift of the sequence carries ID information of the a-IOT device, and different cyclic shift values correspond to ID information of different a-IOT devices.

Optionally, the reference signal is a sequence, and the time-frequency domain resource where the reference signal is located carries ID information of the a-IOT device, and different time-frequency domain resources correspond to ID information of different a-IOT devices.

Optionally, the feedback information is based on at least one of the following bearers:

The physical layer control signaling carries acknowledgement messages (e.g., ACK) and/or ID (e.g., destination ID) information;

using higher layer signaling to carry acknowledgement messages (e.g., ACKs) and or ID (e.g., destination ID) information;

The acknowledgement message is a reference signal and does not require the bearer of higher layer signaling or control signaling.

In some embodiments, when the measured value is greater than or equal to the pre-configured threshold value 3, the connection with the current first network device is still maintained and no reselection of the first network device is performed.

In some embodiments, when the measured value is less than or equal to the preconfigured threshold value 3 described above, then the first network device is reselected. In some embodiments, the reselection to the first network device comprises at least one of:

1) And selecting the network equipment corresponding to the largest RSSI measurement value or the RSRP measurement value to establish connection based on the first network equipment discovery process, and taking the network equipment as the first network equipment after reselection.

2) In the first triggered discovery process (request for assistance), a node corresponding to the next largest RSSI measurement value or RSRP measurement value is selected from the determined candidate list of the first network device to establish a connection, and the node is used as 1 first network device.

In some embodiments, the resources of the A-IOT device to send discovery messages include at least one of:

the network pre-configures resources for the A-IOT equipment for the discovery process, namely, the resources are used for sending auxiliary request messages, or discovery messages, or resource identification (source ID) information of the A-IOT equipment;

The network configures 1 special resource pool (DEDICATED RESOURCE POOL) for the A-IOT device, wherein the resource pool is used for sending auxiliary request information, or discovery information, or source ID information of the A-IOT device, and is only used for executing discovery process;

The network additionally configures resources for the discovery process in a configured resource pool for a-IOT device data and signaling, i.e., shared resource pool, which are excluded from the resource pool and cannot be used for transmission of a-IOT device data and signaling.

The embodiments of the present disclosure also provide an apparatus for implementing any of the above methods, for example, an apparatus is provided, where the apparatus includes a unit or a module for implementing each step performed by the terminal in any of the above methods. For another example, another apparatus is also proposed, which includes a unit or module configured to implement steps performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

It should be understood that the division of each unit or module in the above apparatus is merely a division of a logic function, and may be fully or partially integrated into one physical entity or may be physically separated when actually implemented. Furthermore, units or modules in the apparatus may be implemented in the form of processor-invoked software: the device comprises, for example, a processor, the processor being connected to a memory, the memory having instructions stored therein, the processor invoking the instructions stored in the memory to perform any of the methods or to perform the functions of the units or modules of the device, wherein the processor is, for example, a general purpose processor, such as a central processing unit (Central Processing Unit, CPU) or microprocessor, and the memory is internal to the device or external to the device. Or a unit or module in the apparatus may be implemented in the form of a hardware circuit, and the functions of some or all of the unit or module may be implemented by the design of the hardware circuit, where the hardware circuit may be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the units or modules are implemented by designing a logic relationship of elements in the circuit; for another example, in another implementation, the hardware circuit may be implemented by a programmable logic device (programmable logic device, PLD), for example, a field programmable gate array (Field Programmable GATE ARRAY, FPGA), which may include a large number of logic gates, and the connection relationship between the logic gates is configured by a configuration file, so as to implement the functions of some or all of the units or modules. All units or modules of the above device may be realized in the form of invoking software by a processor, or in the form of hardware circuits, or in part in the form of invoking software by a processor, and in the rest in the form of hardware circuits.

In the disclosed embodiments, the processor is a circuit with signal processing capabilities, and in one implementation, the processor may be a circuit with instruction reading and running capabilities, such as a central processing unit (Central Processing Unit, CPU), a microprocessor, a graphics processor (graphics processing unit, GPU) (which may be understood as a microprocessor), or a digital signal processor (DIGITAL SIGNAL processor, DSP), etc.; in another implementation, the processor may implement a function through a logic relationship of hardware circuits that are fixed or reconfigurable, such as a hardware circuit implemented as an application-specific integrated circuit (ASIC) or a programmable logic device (programmable logic device, PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads the configuration document, and the process of implementing the configuration of the hardware circuit may be understood as a process of loading instructions by the processor to implement the functions of some or all of the above units or modules. Furthermore, a hardware circuit designed for artificial intelligence may be also be considered as an ASIC, such as a neural network Processing Unit (Neural Network Processing Unit, NPU), tensor Processing Unit (Tensor Processing Unit, TPU), deep learning Processing Unit (DEEP LEARNING Processing Unit, DPU), and the like.

Fig. 6A is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. As shown in fig. 6A, the terminal 6100 may include: the transceiver module 6101 and the processing module 6102. In some embodiments, the transceiver module 6101 is configured to send the first information when the first condition is satisfied, where the node device is configured to find a node device that communicates with the terminal, and the node device includes one or more node devices. Optionally, the transceiver module 6101 is configured to perform at least one of the communication steps (e.g., step S2101, step S2102 but not limited thereto) of transmission and/or reception performed by the terminal 101 in any of the above methods, which is not described herein.

In some embodiments, the processing module 6102 is configured to determine a first network device. Optionally, the processing module 6102 is configured to perform at least one of the processing steps (e.g. step S2103, but not limited to the above) of the terminal 101 in any of the above methods, which is not described herein.

In some embodiments, the first condition is satisfied, including at least one of: the terminal receives a first signal, and determines that the quality parameter value of the first signal is smaller than or equal to a first threshold value, wherein the first signal is a signal sent by network equipment; and the terminal does not receive feedback information of the network equipment on the second information within the effective time, and the second information is sent to the network equipment by the terminal.

In some embodiments, satisfying the first condition includes the terminal determining that the quality parameter value of the first signal is less than or equal to a first threshold value; the quality parameter values comprise a plurality of quality parameter values, different quality parameter values corresponding to different first thresholds.

In some embodiments, transceiver module 6101 is also to: and receiving a second signal, wherein the second signal carries feedback information, and the feedback information is feedback information sent to the terminal by one or more node devices receiving the first information.

In some embodiments, the processing module 6102 is further configured to determine a quality parameter value of the second signal; and selecting a first node device corresponding to a signal with the maximum quality parameter value in the second signal as the node device for communicating with the terminal.

In some embodiments, transceiver module 6101 is also to: a third signal is received from the first node device and a quality parameter value of the third signal is determined.

In some embodiments, the processing module 6102 is further configured to save a quality parameter value of the second signal received when the first information is sent for the first time, where the saved quality parameter value of the second signal is greater than a third threshold;

In some embodiments, the transceiver module may include a transmitting module and/or a receiving module, which may be separate or integrated. Alternatively, the transceiver module may be interchangeable with a transceiver.

In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the plurality of sub-modules perform all or part of the steps required to be performed by the processing module, respectively. Alternatively, the processing module may be interchanged with the processor.

Fig. 6B is a schematic structural diagram of a node device according to an embodiment of the present disclosure. As shown in fig. 6B, the node device 6200 may include: transceiver module 6201. In some embodiments, the transceiver module 6201 is configured to receive first information, where the first information is information sent by a terminal when the first condition is met, where the first information is used to find a node device that communicates with the terminal, and the node device includes one or more node devices. Optionally, the transceiver module 6201 is configured to perform at least one of the communication steps (e.g. step S2101, step S2102 but not limited thereto) of the sending and/or receiving performed by the network device 102 in any of the above methods, which is not described herein.

In some embodiments, satisfying the first condition includes: the quality parameter value of the first signal is less than or equal to the first threshold value, the quality parameter value comprises a plurality of quality parameter values, and different quality parameter values correspond to different first threshold values.

In some embodiments, the transceiver module 6201 is further configured to send a second signal, where the second signal carries feedback information of the first information.

In some embodiments, the transceiver module 6201 is also used. The node equipment sends a third signal, and communication with the terminal is terminated under the condition that the quality parameter value of the third signal is smaller than or equal to a third threshold value; in case the quality parameter value of the third signal is larger than the third threshold value, communication with the terminal is maintained.

Fig. 7A is a schematic structural diagram of a communication device 7100 according to an embodiment of the present disclosure. The communication device 7100 may be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device, etc.), a chip system, a processor, etc. that supports the network device to implement any of the above methods, or a chip, a chip system, a processor, etc. that supports the terminal to implement any of the above methods. The communication device 7100 may be used to implement the methods described in the above method embodiments, and may be referred to in particular in the description of the above method embodiments.

As shown in fig. 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 may be a general-purpose processor or a special-purpose processor, etc., and may be, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process data for the programs. Optionally, the communication device 7100 is used to perform any of the above methods. Optionally, the one or more processors 7101 are configured to invoke instructions to cause the communication device 7100 to perform any of the methods above.

In some embodiments, the communication device 7100 also includes one or more transceivers 7102. When the communication device 7100 includes one or more transceivers 7102, the transceiver 7102 performs at least one of the communication steps (e.g., step S2101, step S2102 but not limited thereto) of the above-described method, and the processor 7101 performs at least one of the other steps (e.g., step S2103 but not limited thereto). In alternative embodiments, the transceiver may include a receiver and/or a transmitter, which may be separate or integrated. Alternatively, terms such as transceiver, transceiver unit, transceiver circuit, interface, etc. may be replaced with each other, terms such as transmitter, transmitter unit, transmitter circuit, etc. may be replaced with each other, and terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

In some embodiments, the communication device 7100 also includes one or more memories 7103 for storing data. Alternatively, all or part of the memory 7103 may be external to the communication device 7100. In alternative embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is coupled to the memory 7103, and the interface circuit 7104 may be configured to receive data from the memory 7103 or other device and may be configured to transmit data to the memory 7103 or other device. For example, the interface circuit 7104 may read data stored in the memory 7103 and send the data to the processor 7101.

The communication device 7100 in the above embodiment description may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by fig. 7A. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be: 1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem; (2) A set of one or more ICs, optionally including storage means for storing data, programs; (3) an ASIC, such as a Modem (Modem); (4) modules that may be embedded within other devices; (5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like; (6) others, and so on.

Fig. 7B is a schematic structural diagram of a chip 7200 according to an embodiment of the disclosure. For the case where the communication device 7100 may be a chip or a chip system, reference may be made to a schematic structural diagram of the chip 7200 shown in fig. 7B, but is not limited thereto.

The chip 7200 includes one or more processors 7201. Chip 7200 is used to perform any of the above methods.

In some embodiments, the chip 7200 further includes one or more interface circuits 7202. Alternatively, the terms interface circuit, interface, transceiver pin, etc. may be interchanged. In some embodiments, the chip 7200 further includes one or more memories 7203 for storing data. Alternatively, all or a portion of memory 7203 may be external to chip 7200. Optionally, an interface circuit 7202 is coupled to the memory 7203, the interface circuit 7202 may be configured to receive data from the memory 7203 or other device, and the interface circuit 7202 may be configured to transmit data to the memory 7203 or other device. For example, the interface circuit 7202 may read data stored in the memory 7203 and transmit the data to the processor 7201.

In some embodiments, the interface circuit 7202 performs at least one of the communication steps (e.g., step S2101 but not limited thereto) of sending and/or receiving in the above-described method. The interface circuit 7202 performs the communication step of transmission and/or reception in the above-described method, for example, refers to: the interface circuit 7202 performs data interaction between the processor 7201, the chip 7200, the memory 7203, or the transceiver device. In some embodiments, the processor 7201 performs at least one of the other steps (e.g., step S2103, but is not limited thereto).

The modules and/or devices described in the embodiments of the virtual device, the physical device, the chip, etc. may be arbitrarily combined or separated according to circumstances. Alternatively, some or all of the steps may be performed cooperatively by a plurality of modules and/or devices, without limitation.

The present disclosure also proposes a storage medium having stored thereon instructions that, when executed on a communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Alternatively, the storage medium described above is a computer-readable storage medium, but is not limited thereto, and it may be a storage medium readable by other devices. Alternatively, the above-described storage medium may be a non-transitory (non-transitory) storage medium, but is not limited thereto, and it may also be a transitory storage medium.

The present disclosure also proposes a program product which, when executed by a communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the above-described program product is a computer program product.

The present disclosure also proposes a computer program which, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A method of communication, the method comprising:

And under the condition that the first condition is met, the terminal sends first information, wherein the first information is used for searching node equipment which communicates with the terminal.

2. The method of claim 1, wherein the meeting a first condition comprises at least one of:

The terminal receives a first signal, and determines that a quality parameter value of the first signal is smaller than or equal to a first threshold value, wherein the first signal is a signal sent by network equipment;

and the terminal does not receive feedback information of the network equipment on the second information within the effective time, and the second information is sent to the network equipment by the terminal.

3. The method of claim 2, wherein the satisfaction of the first condition comprises the terminal determining that a quality parameter value of the first signal is less than or equal to a first threshold;

The different quality parameter values correspond to different first thresholds.

4. A method according to claim 2 or 3, wherein the meeting of the first condition further comprises:

the terminal receives a first signal and determines that a quality parameter value of the first signal is greater than or equal to a second threshold value;

wherein the first threshold is greater than the second threshold.

5. The method according to any one of claims 1 to 4, wherein the first information comprises request information, or wherein the first information comprises request information and identification information of the terminal;

The request information is used for searching node equipment which communicates with the terminal.

6. The method of claim 5, wherein the first information is based on at least one of:

physical layer control signaling;

high-level control signaling;

and (3) a reference signal.

7. The method of claim 6, wherein the first information comprises request information and identification information of the terminal, and is carried based on the reference signal;

the reference signal carries identification information of the terminal based on at least one of the following:

Cyclic shift, different cyclic shifts bear different identification information of the terminal;

Time-frequency domain resources, different time-frequency domain resources bear different identification information of the terminal.

8. The method according to any one of claims 1 to 7, further comprising:

The terminal receives a second signal and determines a quality parameter value of the second signal, wherein the second signal carries feedback information, and the feedback information is feedback information sent to the terminal by one or more node devices receiving the first information;

The terminal selects a first node device corresponding to a signal with the maximum quality parameter value in the second signal as the node device for communication with the terminal.

9. The method of claim 8, wherein the method further comprises:

receiving a third signal from the first node device, determining a quality parameter value of the third signal;

Reselecting a node device in communication with the terminal in response to the quality parameter value of the third signal being less than or equal to a third threshold; or alternatively, the first and second heat exchangers may be,

And in response to the quality parameter value of the third signal being greater than a third threshold, maintaining communication between the terminal and the first node device.

10. The method of claim 9, wherein the reselecting the node device in communication with the terminal comprises:

Retransmitting the first information; the terminal re-receives the second signal, and determines a quality parameter value of the re-received second signal, wherein the re-received second signal carries feedback information, and the feedback information is feedback information sent to the terminal by one or more node devices receiving the re-sent first information;

and the terminal selects a second node device corresponding to the signal with the maximum quality parameter value in the re-received second signals as the node device for communication with the terminal.

11. The method according to claim 9, wherein the method further comprises: saving a quality parameter value of a second signal received when the first information is transmitted for the first time, wherein the saved quality parameter value of the second signal is larger than the third threshold value;

the reselection of the node device in communication with the terminal includes:

And the terminal selects second node equipment corresponding to a signal with a second largest quality parameter value in the second signal based on the stored quality parameter value of the second signal as node equipment for communication with the terminal.

12. The method according to any of claims 1 to 11, wherein the resources of the terminal transmitting the first information are determined based on at least one of the following resources:

Pre-configuring resources;

A resource pool dedicated to the first information;

And resources used for transmitting the first information are in a common resource pool.

13. The method according to any one of claims 1 to 11, wherein the quality parameter comprises at least one of:

A received signal strength indicator RSSI;

Reference signal received power RSRP;

Reference signal received quality RSRQ.

14. The method of claim 8, wherein the feedback information comprises: and confirming the response information and/or the identification information of the node equipment.

15. A method of communication, the method comprising:

The node equipment receives first information, wherein the first information is information sent by a terminal under the condition that a first condition is met, and the first information is used for searching the node equipment which communicates with the terminal.

16. The method of claim 15, wherein the first information comprises request information or the first information comprises request information and identification information of the terminal;

The request information is used to determine a node device in communication with the terminal.

17. The method of claim 15, wherein the first information is based on at least one of:

physical layer control signaling;

high-level control signaling;

and (3) a reference signal.

18. The method of claim 16, wherein the first information comprises request information and identification information of the terminal, and is based on a reference signal bearer;

19. The method of claim 15, wherein the method further comprises:

the node device transmits a second signal that,

Wherein the second signal carries feedback information of the first information.

20. The method of claim 16, wherein the method further comprises:

The node device transmits a third signal,

Terminating communication with the terminal if the quality parameter value of the third signal is less than or equal to a third threshold value;

And if the quality parameter value of the third signal is greater than a third threshold value, communication with the terminal is maintained.

21. The method according to any of the claims 15 to 17, characterized in that the transmission resources of the first information are determined based on at least one of the following resources:

Pre-configuring resources;

A resource pool dedicated to the first information;

22. The method according to any one of claims 15 to 20, wherein the quality parameter comprises at least one of:

A received signal strength indicator RSSI;

Reference signal received power RSRP;

Reference signal received quality RSRQ.

23. The method of claim 19, wherein the feedback information comprises: and confirming the response information and/or the identification information of the node equipment.

24. A method of communication, the method comprising: under the condition that a first condition is met, the terminal sends first information, wherein the first information is used for requesting node equipment to communicate with the terminal;

the node device receives the first information.

25. A terminal, comprising:

and the receiving and transmitting module is used for transmitting first information under the condition that the first condition is met, wherein the first information is used for requesting the node equipment to communicate with the terminal.

26. A node device, comprising:

and the receiving and transmitting module is used for receiving first information, wherein the first information is information sent by the terminal under the condition that the first condition is met, and the first information is used for requesting the node equipment to communicate with the terminal.

27. A terminal, comprising:

one or more processors;

Wherein the processor is configured to perform the communication method of any one of claims 1 to 14.

28. A node device, comprising:

one or more processors;

Wherein the processor is configured to perform the communication method of any one of claims 15 to 23.

29. A communication system, comprising: a terminal configured to implement the communication method of any one of claims 1 to 14, and a node device configured to implement the communication method of any one of claims 15 to 23.

30. A storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method of any one of claims 1 to 14, 15 to 23.