Information sending method and apparatus, information receiving method and apparatus, communication system, and storage medium

Abstract

The present invention relates to the technical field of communications, and in particular to an information sending method and apparatus, an information receiving method and apparatus, a communication system, and a storage medium. The information receiving method comprises: receiving first indication information sent by a network device, wherein the first indication information is used for indicating a first candidate beam, and the first candidate beam is a candidate beam for beam pairing between a first terminal and a second terminal. According to the present invention, when a first terminal needs to perform beam pairing with a second terminal, the first terminal does not need to perform beam scanning, but can determine a first candidate beam on the basis of first indication information from a network device, to perform beam pairing with the second terminal on the basis of the first candidate beam, thereby avoiding delays in the beam pairing process caused by excessive time consumption of a beam scanning process.

Description

Information sending and receiving method and device, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to an information sending method, an information receiving method, an information sending device, an information receiving device, a first terminal, a second terminal, a network device, a communication system, and a storage medium. Background Art

[0002] With the development of communication technology, terminals are no longer limited to communicating through network devices in mobile networks (such as cellular networks). They can also communicate directly with other terminals through direct links (sidelinks). However, in direct link communication scenarios, there are still some technical issues that need to be solved.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide information sending and receiving methods and devices, a communication system, and a storage medium to solve technical problems in related technologies.

[0005] According to a first aspect of an embodiment of the present disclosure, a method for receiving information is proposed, which is executed by a first terminal. The method includes: receiving first indication information sent by a network device, wherein the first indication information is used to indicate a first candidate beam, and the first candidate beam is a candidate beam paired with the first terminal beam and the second terminal beam.

[0006] According to a second aspect of an embodiment of the present disclosure, a method for sending information is proposed, which is executed by a network device. The method includes: sending first indication information to a first terminal, and / or sending second indication information to a second terminal; wherein the first indication information is used to indicate a first candidate beam, which is a candidate beam paired with the beam of the first terminal and the second terminal, and the second indication information is used to indicate a second candidate beam, which is a candidate beam paired with the beam of the second terminal and the first terminal.

[0007] According to the third aspect of an embodiment of the present disclosure, a method for receiving information is proposed, which is executed by a second terminal. The method includes: receiving second indication information sent by a network device, wherein the second indication information is used to indicate a second candidate beam, and the second candidate beam is a candidate beam paired with the beam of the first terminal by the second terminal.

[0008] According to the fourth aspect of an embodiment of the present disclosure, an information receiving device is proposed, which includes: a receiving module configured to receive first indication information sent by a network device, wherein the first indication information is used to indicate a first candidate beam, which is a candidate beam paired with the first terminal and the second terminal beam.

[0009] According to the fifth aspect of an embodiment of the present disclosure, an information sending device is proposed, which includes: a sending module, configured to send first indication information to a first terminal, and / or send second indication information to a second terminal; wherein, the first indication information is used to indicate a first candidate beam, which is a candidate beam paired with the beam of the first terminal and the second terminal, and the second indication information is used to indicate a second candidate beam, which is a candidate beam paired with the beam of the second terminal and the first terminal.

[0010] According to the sixth aspect of an embodiment of the present disclosure, an information receiving device is proposed, which includes: a receiving module configured to receive second indication information sent by a network device, wherein the second indication information is used for a second candidate beam for pairing a second terminal with the first terminal beam.

[0011] According to a seventh aspect of an embodiment of the present disclosure, a first terminal is proposed, comprising: one or more processors; wherein the terminal is used to execute the information receiving method described in the first aspect.

[0012] According to an eighth aspect of an embodiment of the present disclosure, a network device is proposed, comprising: one or more processors; wherein the network device is used to execute the information sending method described in the second aspect.

[0013] According to a ninth aspect of an embodiment of the present disclosure, a second terminal is proposed, comprising: one or more processors; wherein the terminal is used to execute the information receiving method described in the third aspect.

[0014] According to the tenth aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a first terminal, a second terminal, and a network device, wherein the first terminal is configured to implement the information receiving method described in the first aspect, the network device is configured to implement the information sending method described in the second aspect, and the second terminal is configured to implement the information receiving method described in the third aspect.

[0015] According to the eleventh aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the information receiving method described in the first aspect, and / or the information sending method described in the second aspect, and / or the information receiving method described in the third aspect.

[0016] According to an embodiment of the present disclosure, when the first terminal needs to perform beam pairing with the second terminal, it is not necessary to perform beam scanning. Instead, the first candidate beam is determined according to the first indication information of the network device, and then beam pairing is performed with the second terminal based on the first candidate beam. This is beneficial to avoid the beam scanning process taking too much time, which causes a delay in the beam pairing process.

[0017] Moreover, since the network equipment can obtain the spatial information (such as position, direction, etc.) of each terminal more accurately than the terminal, it is convenient to accurately determine the actual optimal beam pair when the first terminal and the second terminal are communicating in a direct link, and accordingly indicate the first candidate beam to the first terminal, which is conducive to ensuring good communication effects between the first terminal and the second terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0020] FIG2 is a schematic diagram showing beam pairing according to an embodiment of the present disclosure.

[0021] FIG3 is an interactive diagram illustrating a method for receiving information according to an embodiment of the present disclosure.

[0022] FIG4A is a schematic diagram showing a beam distribution method according to an embodiment of the present disclosure.

[0023] FIG4B is a schematic diagram showing a spatial relationship of terminals according to an embodiment of the present disclosure.

[0024] FIG4C is a schematic diagram showing a candidate beam pair according to an embodiment of the present disclosure.

[0025] FIG4D is a schematic diagram showing a beam width according to an embodiment of the present disclosure.

[0026] FIG5 is a schematic flowchart showing a beam pairing according to an embodiment of the present disclosure.

[0027] FIG6 is a schematic flowchart showing another beam pairing according to an embodiment of the present disclosure.

[0028] FIG7 is a schematic flowchart showing another beam pairing according to an embodiment of the present disclosure.

[0029] FIG8 is a schematic flowchart showing yet another beam pairing according to an embodiment of the present disclosure.

[0030] FIG9 is a schematic flowchart showing a method for receiving information according to an embodiment of the present disclosure.

[0031] FIG10 is a schematic flowchart showing a method for sending information according to an embodiment of the present disclosure.

[0032] FIG11 is a schematic flowchart showing a method for receiving information according to an embodiment of the present disclosure.

[0033] FIG12 is a schematic block diagram of an information receiving device according to an embodiment of the present disclosure.

[0034] FIG13 is a schematic block diagram of an information sending device according to an embodiment of the present disclosure.

[0035] FIG14 is a schematic block diagram of an information receiving device according to an embodiment of the present disclosure.

[0036] FIG15A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0037] FIG15B is a schematic diagram of the structure of the chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] The embodiments of the present disclosure provide methods and devices for sending and receiving information, a communication system, and a storage medium.

[0039] In a first aspect, an embodiment of the present disclosure proposes an information receiving method, which is executed by a first terminal, and the method includes: receiving first indication information sent by a network device, wherein the first indication information is used to indicate a first candidate beam, and the first candidate beam is a candidate beam paired with the first terminal beam and the second terminal beam.

[0040] In the above embodiment, when the first terminal needs to perform beam pairing with the second terminal, it is not necessary to perform beam scanning. Instead, the first candidate beam is determined according to the first indication information of the network device, and then beam pairing is performed with the second terminal based on the first candidate beam. This is beneficial to avoid the beam scanning process taking too much time, which causes the beam pairing process to be delayed.

[0041] Moreover, since the network equipment can obtain the spatial information (such as position, direction, etc.) of each terminal more accurately than the terminal, it is convenient to accurately determine the actual optimal beam pair when the first terminal and the second terminal are communicating in a direct link, and accordingly indicate the first candidate beam to the first terminal, which is conducive to ensuring good communication effects between the first terminal and the second terminal.

[0042] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: sending first capability information to the network device, wherein the first capability information is used to indicate at least one of the following: a beam scanning range supported by the first terminal; and a beam width supported by the first terminal.

[0043] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: receiving first response information sent by the network device, wherein the first response information is used to indicate a correspondence between a spatial angle range and a beam of the first terminal.

[0044] In combination with some embodiments of the first aspect. In some embodiments, the method further includes: sending a first beam pairing request to the network device, wherein the first beam pairing request is used to indicate at least one of the following: an identifier of the first terminal; an identifier of the second terminal; a time domain resource that the first terminal expects to use for direct link communication with the second terminal; a frequency domain resource that the first terminal expects to use for direct link communication with the second terminal; a location of the second terminal; or a direction of the second terminal.

[0045] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: receiving second response information sent by the network device, wherein the second response information is used to indicate whether the network device supports assisting the terminal in performing beam pairing.

[0046] In combination with some embodiments of the first aspect, in some embodiments, the first indication information is used to indicate a first candidate beam for beam pairing between the first terminal and the second terminal in the time domain resources and / or the frequency domain resources.

[0047] In combination with some embodiments of the first aspect, in some embodiments, the first candidate beam includes at least one of the following: a beam of a first beam width; a beam of a second beam width; a beam of the second beam width among the beams of the first beam width, wherein the first beam width is greater than the second beam width.

[0048] In combination with some embodiments of the first aspect. In some embodiments, during the process of establishing a direct link between the first terminal and the second terminal, the first terminal performs beam pairing with the second terminal, and during the process of beam pairing between the first terminal and the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the first beam width; after the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the second beam width.

[0049] In combination with some embodiments of the first aspect. In some embodiments, after the direct link between the first terminal and the second terminal is established, the first terminal performs beam pairing with the second terminal, and before the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the first beam width; after the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the second beam width.

[0050] In the second aspect, an embodiment of the present disclosure proposes an information sending method, which is executed by a network device, and the method includes: sending first indication information to a first terminal, and / or sending second indication information to a second terminal; wherein, the first indication information is used to indicate a first candidate beam, and the first candidate beam is a candidate beam paired with the first terminal beam, and the second indication information is used to indicate a second candidate beam, and the second candidate beam is a candidate beam paired with the second terminal beam.

[0051] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: receiving first capability information sent by the first terminal, wherein the first capability information is used to indicate at least one of the following: a beam scanning range supported by the first terminal; and a beam width supported by the first terminal.

[0052] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: sending first response information to the first terminal, wherein the first response information is used to indicate a correspondence between a spatial angle range and a beam of the first terminal.

[0053] In combination with some embodiments of the second aspect. In some embodiments, the method further includes: receiving a first beam pairing request sent by the first terminal, wherein the first beam pairing request is used to indicate at least one of the following: an identifier of the first terminal; an identifier of the second terminal; a time domain resource for which the first terminal expects to perform a direct link communication with the second terminal; a frequency domain resource for which the first terminal expects to perform a direct link communication with the second terminal; a position of the second terminal; or a direction of the second terminal.

[0054] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: sending second response information to the first terminal, wherein the second response information is used to indicate whether the network device supports assisting the terminal in performing beam pairing.

[0055] In combination with some embodiments of the second aspect. In some embodiments, the method further includes: sending a second beam pairing request to the second terminal, wherein the second beam pairing request includes at least one of the following: an identifier of the first terminal; time domain resources that the first terminal expects to use for direct link communication with the second terminal; frequency domain resources that the first terminal expects to use for direct link communication with the second terminal; the location of the first terminal; and the direction of the first terminal.

[0056] In combination with some embodiments of the second aspect, in some embodiments, the method further includes: receiving third response information sent by the second terminal, wherein the third response information is used to indicate whether the second terminal agrees to perform beam pairing with the first terminal.

[0057] In combination with some embodiments of the second aspect, in some embodiments, the first indication information is used to indicate a first candidate beam for beam pairing between the first terminal and the second terminal in the time domain resources and / or the frequency domain resources.

[0058] In combination with some embodiments of the second aspect, in some embodiments, the first candidate beam and / or the second candidate beam include at least one of the following: a beam of a first beam width; a beam of a second beam width; or a beam of the second beam width within the beam of the first beam width, wherein the first beam width is greater than the second beam width.

[0059] In the third aspect, an embodiment of the present disclosure proposes an information receiving method, which is executed by a second terminal, and the method includes: receiving second indication information sent by a network device, wherein the second indication information is used to indicate a second candidate beam, and the second candidate beam is a candidate beam paired with the second terminal beam.

[0060] In combination with some embodiments of the third aspect. In some embodiments, the method further includes: receiving a second beam pairing request sent by the network device, wherein the second beam pairing request includes at least one of the following: an identifier of the first terminal; time domain resources for which the first terminal expects to perform direct link communication with the second terminal; frequency domain resources for which the first terminal expects to perform direct link communication with the second terminal; a location of the second terminal; or a direction of the second terminal.

[0061] In combination with some embodiments of the third aspect, in some embodiments, the method further includes: sending third response information to the network device, wherein the third response information is used to indicate whether the second terminal agrees to perform beam pairing with the first terminal.

[0062] In combination with some embodiments of the third aspect, in some embodiments, the first candidate beam includes at least one of the following: a beam of a first beam width; a beam of a second beam width; or a beam of the second beam width among the beams of the first beam width, wherein the first beam width is greater than the second beam width.

[0063] In a fourth aspect, an embodiment of the present disclosure proposes an information receiving device, which includes: a receiving module configured to receive first indication information sent by a network device, wherein the first indication information is used to indicate a first candidate beam, which is a candidate beam paired with the first terminal and the second terminal beam.

[0064] In the fifth aspect, an embodiment of the present disclosure proposes an information sending device, which includes: a sending module, configured to send first indication information to a first terminal, and / or send second indication information to a second terminal; wherein, the first indication information is used to indicate a first candidate beam, which is a candidate beam paired with the beam of the first terminal and the second terminal, and the second indication information is used to indicate a second candidate beam, which is a candidate beam paired with the beam of the second terminal and the first terminal.

[0065] In the sixth aspect, an embodiment of the present disclosure proposes an information receiving device, which includes: a receiving module, configured to receive second indication information sent by a network device, wherein the second indication information is used to indicate a second candidate beam, and the second candidate beam is a candidate beam paired with the second terminal beam.

[0066] In a seventh aspect, an embodiment of the present disclosure proposes a first terminal, comprising: one or more processors; wherein the terminal is used to execute the information receiving method described in any one of the first aspect and the optional embodiments of the first aspect.

[0067] In an eighth aspect, an embodiment of the present disclosure proposes a network device, comprising: one or more processors; wherein the network device is used to execute the information sending method described in any one of the second aspect and the optional embodiments of the second aspect.

[0068] In the ninth aspect, an embodiment of the present disclosure proposes a second terminal, comprising: one or more processors; wherein the terminal is used to execute the information receiving method described in any one of the third aspect and the optional embodiments of the third aspect.

[0069] In the tenth aspect, an embodiment of the present disclosure proposes a communication system, including a first terminal, a second terminal, and a network device, wherein the first terminal is configured to implement the information receiving method described in any one of the first aspect and the optional embodiments of the first aspect, the network device is configured to implement the information sending method described in any one of the second aspect and the optional embodiments of the second aspect, and the second terminal is configured to implement the information receiving method described in any one of the third aspect and the optional embodiments of the third aspect.

[0070] In the eleventh aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the information receiving method described in any one of the first aspect and the optional embodiments of the first aspect, and / or the information sending method described in any one of the second aspect and the optional embodiments of the second aspect, and / or the information receiving method described in any one of the third aspect and the optional embodiments of the third aspect.

[0071] In the twelfth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the information receiving method described in any one of the first aspect and the optional embodiments of the first aspect, and / or the information sending method described in any one of the second aspect and the optional embodiments of the second aspect, and / or the information receiving method described in any one of the third aspect and the optional embodiments of the third aspect.

[0072] In the thirteenth aspect, an embodiment of the present disclosure proposes a computer program, which, when running on a computer, enables the computer to execute the information receiving method described in any one of the first aspect and the optional embodiments of the first aspect, and / or the information sending method described in any one of the second aspect and the optional embodiments of the second aspect, and / or the information receiving method described in any one of the third aspect and the optional embodiments of the third aspect.

[0073] It is understandable that the above-mentioned information sending and receiving devices, communication equipment, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0074] The present disclosure provides information sending and receiving methods and devices, communication systems, and storage media. In some embodiments, the terms "information sending and receiving methods" and "information processing methods" and "communication methods" are interchangeable; the terms "information sending and receiving devices" and "information processing devices" and "communication devices" are interchangeable; and the terms "information processing systems" and "communication systems" are interchangeable.

[0075] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0076] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0077] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0078] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", etc., may mean "one and only one", or "one or more", "at least one", etc.

[0079] For example, when using articles such as “a”, “an”, and “the” in English in translation, the noun following the article can be understood as a singular expression or a plural expression.

[0080] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0081] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0082] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0083] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0084] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restrictions on the position, order, priority, quantity or content of the description objects. For the statement of the description objects, please refer to the description in the context of the claims or embodiments, and no unnecessary restrictions should be constituted due to the use of prefixes.

[0085] For example, if the description object is "field," the ordinal number preceding "field" in "first field" and "second field" does not restrict the position or order of the "fields." "First" and "second" do not restrict whether the modified "fields" are in the same message, nor do they restrict the order of the "first field" and "second field." For another example, if the description object is "level," the ordinal number preceding "level" in "first level" and "second level" does not restrict the priority of the "levels." For another example, the number of description objects is not restricted by the ordinal number and can be one or more. For example, in the case of "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the description object is "device," "first device" and "second device" can be the same or different devices, and their types can be the same or different. For another example, if the description object is "information," "first information" and "second information" can be the same or different information, and their content can be the same or different.

[0086] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0087] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0088] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0089] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0090] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0091] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0092] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0093] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0094] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0095] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0096] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0097] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0098] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0099] As shown in FIG1 , a communication system 100 includes a first terminal 101 , a second terminal 102 , and a network device 103 , wherein the network device includes at least one of the following: an access network device and a core network device.

[0100] In some embodiments, the first terminal and the second terminal include, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but are not limited thereto.

[0101] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB) in a 5G communication system, a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band 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, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0102] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0103] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0104] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0105] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0106] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0107] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, 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), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0108] In some embodiments, a side link may be established between the first terminal and the second terminal, thereby enabling direct communication through the side link.

[0109] In some embodiments, in order to enhance the coverage performance of a terminal when communicating based on a direct link, the terminal may receive and send information based on a beam.

[0110] Before the first terminal and the second terminal communicate based on the beam, they need to perform beam pairing first, which can be understood as one terminal selecting the beam with the best communication effect with the other terminal.

[0111] When the first terminal and the second terminal are performing beam pairing, since the two terminals do not know each other's positions, they need to use directional beams to perform blind scanning in the airspace. Taking the first terminal as the initiator and the second terminal as the receiver as an example, the blind scanning process is as follows:

[0112] The first terminal performs beam scanning within an angle range supported by the terminal;

[0113] For each beam of the first terminal, the second terminal scans the receiving beam within an angle range supported by the second terminal;

[0114] The second terminal measures and compares the signal strength of a reference signal (e.g., a reference signal in the transmit beam of the first terminal) in each receiving direction. For example, the signal strength can be represented by Reference Signal Received Power (RSRP). The second terminal determines, based on the comparison result, a beam to be used for direct link communication between the receiving end and the first terminal.

[0115] The beam scanning process of the first terminal ends.

[0116] In the above process, if the first terminal has M transmit beams and the second terminal has N transmit beams, then the entire beam scanning process needs to scan M×N beam pairs. Therefore, the time consumption of the beam scanning process is positively correlated with the number of transmit beams of the first terminal and the second terminal.

[0117] It should be noted that, in the subsequent embodiments, the first candidate beam and the second candidate beam may include a transmit beam in some embodiments, and may also include a receive beam in other embodiments.

[0118] In addition, when the required scanning angle range is determined, the smaller the beam width, the more beams there are, and the more time it takes; when the beam width is determined, the larger the required scanning angle range, the more beams there are, and the more time it takes.

[0119] FIG2 is a schematic diagram showing beam pairing according to an embodiment of the present disclosure.

[0120] As shown in FIG2 , for example, the first terminal has four transmit beams, namely beam#11, beam#12, beam#13, and beam#14, and the second terminal also has four transmit beams, namely beam#21, beam#22, beam#23, and beam#24.

[0121] For example, Figure 2 shows that for beam #14 of the first terminal, the second terminal needs to use beams #21, #22, #23, and #24 for measurement. Assuming that each measurement takes the same time, t, the four measurements take 4t. For each beam of the first terminal, the second terminal needs to use beams #21, #22, #23, and #24 for measurement, resulting in 4 × 4 = 16 measurement results, taking 16t.

[0122] The beam used by the first terminal when communicating with the second terminal in a direct link can be determined based on feedback from the second terminal, or can be determined based on channel reciprocity. For example, the first terminal can send a reference signal based on the determined beam, and the first terminal can perform beam scanning within the angle range it supports scanning to determine the beam used by the first terminal.

[0123] It can be seen that the above beam pairing process is mainly based on blind scanning. There are two main problems in this process:

[0124] Question 1: In a scenario where the first terminal and the second terminal communicate based on a direct link, the first terminal and the second terminal can be mobile devices, such as vehicles, drones, etc. These devices can support a large scanning range, for example, close to or reaching 360 degrees. As can be seen from the above analysis, the larger the scanning range, the more time it takes.

[0125] Question 2: Since the first terminal and the second terminal can be mobile devices, the positions of the first terminal and the second terminal will change during the beam pairing process, which may cause the beam pair determined during the beam pairing process to be different from the actual optimal beam pair when the first terminal and the second terminal are communicating in a direct link, making it difficult to ensure good communication effects between the first terminal and the second terminal.

[0126] FIG3 is an interactive schematic diagram showing a method for receiving information according to an embodiment of the present disclosure.

[0127] As shown in FIG3 , the information receiving method may include the following steps:

[0128] In step S301, a first terminal receives first indication information sent by a network device.

[0129] In some embodiments, the first indication information is used to indicate a first candidate beam, where the first candidate beam is a candidate beam for beam pairing between the first terminal and the second terminal.

[0130] In step S302, the first terminal determines a first candidate beam to be paired with a beam of the second terminal according to first indication information.

[0131] In some embodiments, in addition to sending the first indication information to the first terminal, the network device may also send second indication information to the second terminal, indicating a second candidate beam to the second terminal, where the second candidate beam is a candidate beam for pairing with the first terminal's beam. The second terminal can thereby determine the second candidate beam to pair with the first terminal's beam based on the second indication information.

[0132] In a further embodiment, after determining the first candidate beam, the first terminal may send a beam pairing request to the second terminal using the first candidate beam. After receiving the beam pairing request, the second terminal may send a beam pairing response to the first terminal using the second candidate beam. This completes the beam pairing process between the first and second terminals. During direct link communication with the second terminal, the first terminal may communicate with the second terminal using the first candidate beam, and the second terminal may communicate with the first terminal using the second candidate beam.

[0133] It should be noted that if the second terminal does not agree to conduct direct link communication with the first terminal after receiving the third beam pairing request sent by the first terminal, or does not agree to use the second candidate beam to conduct direct link communication with the first terminal, then the network device can re-determine the beam pair for direct link communication for the first terminal and the second terminal.

[0134] According to an embodiment of the present disclosure, when the first terminal needs to perform beam pairing with the second terminal, it is not necessary to perform beam scanning. Instead, the first candidate beam is determined according to the first indication information of the network device, and then beam pairing is performed with the second terminal based on the first candidate beam. This is beneficial to avoid the beam scanning process taking too much time, which causes a delay in the beam pairing process.

[0135] Moreover, since the network equipment can obtain the spatial information (such as position, direction, etc.) of each terminal more accurately than the terminal, it is convenient to accurately determine the actual optimal beam pair when the first terminal and the second terminal are communicating in a direct link, and accordingly indicate the first candidate beam to the first terminal, which is conducive to ensuring good communication effects between the first terminal and the second terminal.

[0136] The following describes, through several embodiments, how the network device determines the first candidate beam and the second candidate beam.

[0137] In some embodiments, the network device may have a perception function and may obtain environmental information based on the perception function. For example, the environmental information may include information such as the location, direction, speed, etc. of the terminal (such as the first terminal and the second terminal), and may also include information about a semi-stationary environment.

[0138] In some embodiments, the first terminal may send first capability information to the network device, where the first capability information may be used to indicate the beam coverage capability of the first terminal.

[0139] For example, the first capability information is used to indicate at least one of the following:

[0140] a beam scanning range supported by the first terminal;

[0141] The beamwidth supported by the first terminal.

[0142] It should be noted that the content that can be indicated by the first indication information is not limited to the above two items, and can also indicate other content, such as the codebook used by the first terminal, which is not limited in this disclosure.

[0143] In some embodiments, the network device can determine the number of beams of the first terminal based on the beam scanning range and beam width supported by the first terminal. For example, if the beam scanning range is 360 degrees and the beam width is 90 degrees, then the number of beams of the first terminal can be determined to be 4.

[0144] In some embodiments, the second terminal may send second capability information to the network device, where the second capability information may be used to indicate the beam coverage capability of the second terminal.

[0145] For example, the second capability information is used to indicate at least one of the following:

[0146] The beam scanning range supported by the second terminal;

[0147] The beamwidth supported by the second terminal.

[0148] It should be noted that the content that can be indicated by the second indication information is not limited to the above two items, and can also indicate other content, such as the codebook used by the second terminal, which is not limited by the present disclosure.

[0149] In some embodiments, the network device can determine the number of beams of the second terminal based on the beam scanning range and beam width supported by the second terminal. For example, if the beam scanning range is 360 degrees and the beam width is 90 degrees, the number of beams is 4.

[0150] It should be noted that the 90-degree beamwidth used in the embodiments of this disclosure is for illustrative purposes only. In actual applications, the beamwidth may be less than 90 degrees. For example, in subsequent embodiments, the first beamwidth may be 60 degrees, 45 degrees, 30 degrees, etc., and the second beamwidth may be 30 degrees, 20 degrees, or 10 degrees, etc.

[0151] In the embodiments of the present disclosure, the first terminal and the second terminal are taken as the same type of terminals for example, for example, the first terminal and the second terminal are both vehicles, and the beam distribution modes of the same type of terminals can be set to be the same.

[0152] FIG4A is a schematic diagram showing a beam distribution method according to an embodiment of the present disclosure.

[0153] As shown in FIG4A , taking the example of 4 beams, there is a beam #11 directly in front of the first terminal, a beam #12 on the left, a beam #13 directly behind, and a beam #14 on the right, and the width of each beam is 90 degrees.

[0154] There is a beam #21 directly in front of the second terminal, a beam #22 on the left, a beam #23 directly behind the second terminal, and a beam #24 on the right, and the width of each beam is also 90 degrees.

[0155] FIG4B is a schematic diagram showing a spatial relationship of terminals according to an embodiment of the present disclosure.

[0156] In some embodiments, the network device can determine the location of the first terminal and / or the second terminal. The location can be an absolute location, such as determined based on GPS, or a location relative to the network device. Furthermore, the network device can determine the relative position and orientation of the first terminal and the second terminal in physical space.

[0157] For example, for the first terminal and the second terminal in Figure 4B, the network device can determine that the second terminal is 60 degrees to the right front of the first terminal (and can also determine the distance from the second terminal to the first terminal), and determine that the angle between the direction of the first terminal and the direction of the second terminal is 45 degrees.

[0158] In some embodiments, the terminal direction information may include an absolute direction (e.g., due east, 45 degrees east of north) or a relative direction. For example, for the relative direction, the network device may determine the direction based on the reference direction and the angle offset. The relative direction is the direction offset relative to the reference direction.

[0159] The reference direction may be a relative reference direction, such as the direction of the terminal (ie, directly in front of the terminal), or an absolute reference direction, such as due east, due north, etc.

[0160] For example, in Figure 4B, the orientation direction of the first terminal can be used as the reference direction. According to the perception results, it can be determined that the relative direction of the position of the second terminal and the position of the first terminal is 300 degrees (or can be represented as -60 degrees), and it can be determined that the direction of the second terminal is offset by 45 degrees relative to the direction of the first terminal.

[0161] In some embodiments, the network device can determine the distribution of the terminal's beams in space based on the capability information reported by the terminal, and determine the position relationship and direction relationship of the terminals based on the perception function, and then can determine the candidate beam pairs (i.e., the first candidate beam and the second candidate beam) for beam pairing between the first terminal and the second terminal based on the distribution of the beams in space and the position relationship and direction relationship of the terminals.

[0162] FIG4C is a schematic diagram showing a candidate beam pair according to an embodiment of the present disclosure.

[0163] In some embodiments, the network device can determine the direction of each beam of the first terminal in space and the direction of each beam of the second terminal in space based on the distribution of the above-mentioned beams in space, as well as information such as the position relationship and direction relationship of the terminals.

[0164] For example, as shown in FIG4C , based on FIG4A and FIG4B , the direction of beam#11 is 0 degrees, the direction of beam#12 is 90 degrees, the direction of beam#13 is 180 degrees, and the direction of beam#14 is 270 degrees.

[0165] Since the direction of the second terminal is offset by 45 degrees relative to the direction of the first terminal, the direction of beam #21 is 45 degrees, the direction of beam #22 is 135 degrees, the direction of beam #23 is 225 degrees, and the direction of beam #24 is 315 degrees.

[0166] Furthermore, the network device may calculate the relative direction between the position of the second terminal and the position of the first terminal, for example, 300 degrees in FIG. 4C .

[0167] The network device can then calculate the absolute value of the difference between the direction of each beam of the first terminal and the relative direction, and determine the beam with the smallest absolute value of the corresponding difference as the first candidate beam. For example, after calculation, beam#14 can be determined as the first candidate beam.

[0168] Furthermore, the network device can perform calculations based on the direction of each beam of the first terminal, the relative direction, the direction of the first candidate beam, etc. to determine the second candidate beam. The specific calculation method is not limited in this disclosure. For example, the network device can determine beam#22 as the second candidate beam after calculation.

[0169] Then, beam#14 may be indicated as the first candidate beam to the first terminal in the first indication information, and beam#22 may be indicated as the second candidate beam to the second terminal in the second indication information.

[0170] In some embodiments, the first terminal may receive first response information sent by the network device, where the first response information is used to indicate a correspondence between a spatial angle range and a beam of the first terminal.

[0171] In order to enable the first terminal to accurately understand which specific first candidate beam indicated by the first indication information is, the network device can first send a first response message (for example, a response information for the first capability information) to the first terminal, and indicate the correspondence between the spatial angle range and the beam of the first terminal through the first indication information.

[0172] For example, based on the embodiments shown in Figures 4A to 4C above, the corresponding relationships may include: the spatial angle range of 315 to 45 degrees corresponds to beam beam#11, 45 to 135 degrees corresponds to beam beam#12, 135 to 225 degrees corresponds to beam beam#13, and 225 to 315 degrees corresponds to beam beam#14.

[0173] Then, when the network device subsequently indicates beam#13 as the first candidate beam through the first indication information, the terminal can determine the beam within the range of 45 to 135 degrees as the first candidate beam based on the corresponding relationship.

[0174] In some embodiments, the second terminal may receive third response information sent by the network device, where the third response information is used to indicate a second correspondence between the spatial angle range and the beam of the second terminal.

[0175] In order to enable the second terminal to accurately understand which specific second candidate beam indicated by the second indication information is, the network device can first send a third response message (for example, a response information for the second capability information) to the second terminal, and indicate the second correspondence between the spatial angle range and the beam of the second terminal through the second indication information.

[0176] For example, based on the embodiments shown in Figures 4A to 4C above, the second correspondence may include: the spatial angle range of 0 to 90 degrees corresponds to beam beam#21, 90 to 180 degrees corresponds to beam beam#22, 180 to 270 degrees corresponds to beam beam#23, and 270 to 360 degrees corresponds to beam beam#24.

[0177] Then, when the network device subsequently indicates that beam#22 is the second candidate beam through the second indication information, the terminal can determine that the beam within the range of 90 to 180 degrees is the second candidate beam according to the second corresponding relationship.

[0178] In some embodiments, the first terminal may send a first beam pairing request to the network device, where the first beam pairing request may request the network device to determine a candidate beam pair for beam pairing for the first terminal and the second terminal.

[0179] In some embodiments, the first beam pairing request is used to indicate at least one of the following:

[0180] an identifier of the first terminal;

[0181] an identifier of the second terminal;

[0182] A time domain resource that the first terminal expects to perform direct link communication with the second terminal;

[0183] frequency domain resources that the first terminal desires to use for direct link communication with the second terminal;

[0184] the location of the second terminal;

[0185] The direction of the second terminal.

[0186] In some embodiments, regarding the identification of the second terminal, if the first terminal has established a direct link with the second terminal before the first terminal sends the first beam pairing request, then the identification of the second terminal is known to the first terminal, so that the first beam pairing request can indicate the identification of the second terminal.

[0187] However, if the first terminal has not yet established a direct link with the second terminal before sending the first beam pairing request, the second terminal's identity is unknown to the first terminal, and the first beam pairing request does not indicate the second terminal's identity. In this case, the network device can determine the second terminal's identity when determining the candidate beam pair and indicate it to the first terminal.

[0188] In some embodiments, if the first terminal has a perception function, the first terminal can determine the spatial orientation information of the second terminal, such as the position of the second terminal, the direction of the second terminal, etc., and indicate the spatial orientation information of the second terminal to the network device through a first beam pairing request, so that the network device does not need to perceive the position and direction of the second terminal, which is conducive to saving resources of the network device.

[0189] In some embodiments, the first terminal indicates to the network device the time domain resource on which the first terminal desires to conduct direct link communication with the second terminal. The network device may predict environmental information on the time domain resource, such as the spatial orientation information of the first terminal (e.g., the position of the first terminal, the direction of the first terminal) and the spatial orientation information of the second terminal (e.g., the position of the second terminal, the direction of the second terminal). The first candidate beam and the second candidate beam determined by the network device on this basis may be better suited for beam pairing between the first terminal and the second terminal in the time domain resource, thereby ensuring good communication effects after beam pairing between the first terminal and the second terminal.

[0190] In some embodiments, the network device may send a second beam pairing request to the second terminal, where the second beam pairing request may request the second terminal to perform beam pairing with the first terminal.

[0191] In some embodiments, the second beam pairing request includes at least one of the following:

[0192] an identifier of the first terminal;

[0193] A time domain resource that the first terminal expects to perform direct link communication with the second terminal;

[0194] frequency domain resources that the first terminal desires to use for direct link communication with the second terminal;

[0195] the location of the first terminal;

[0196] The direction of the first terminal.

[0197] In some embodiments, after receiving the second beam pairing request, the second terminal may choose whether to perform beam pairing with the first terminal.

[0198] For example, when the first terminal expects to use time domain resources and frequency domain resources for direct link communication with the second terminal, the second terminal needs to communicate with other terminals, or there is relatively large interference between the time domain resources and frequency domain resources that the first terminal expects to use for direct link communication with the second terminal, then beam pairing with the first terminal can be rejected.

[0199] For example, if the identifier of the first terminal is blacklisted by the second terminal, the second terminal may refuse to perform beam pairing with the first terminal.

[0200] In addition, in some embodiments, the network device may indicate the perceived spatial orientation information of the first terminal to the second terminal through a second beam pairing request, and the second terminal may choose to perform beam pairing on its own according to the spatial orientation information of the first terminal.

[0201] In some embodiments, the network device may receive a third response message sent by the second terminal, wherein the third response message is used to indicate whether the second terminal agrees to perform beam pairing with the first terminal. The third response message may include a first field, wherein the first field is used to indicate whether to agree to perform beam pairing with the first terminal. In some embodiments, the third response message may include a second field, and the second field is used to indicate whether the first field is used to indicate whether to agree to perform beam pairing with the first terminal, or the reason for not agreeing to perform beam pairing. For example, the second field includes 2 bits, 00 indicates agreement, 01 indicates disagreement, 02 indicates that time domain resources are unavailable, and 03 indicates that frequency domain resources are unavailable. For example, the second field includes 1 bit, 00 indicates agreement, 01 indicates that the first terminal is a terminal prohibited from communicating with the second terminal, 02 indicates that time domain resources are unavailable, and 03 indicates that frequency domain resources are unavailable.

[0202] The unavailability of time domain and / or frequency domain resources may mean that the second terminal needs to use the time domain and / or frequency domain resources to communicate with other terminals, or the second terminal determines that the signal-to-interference ratio or signal-to-noise ratio of the time domain and / or frequency domain resources is lower than a threshold.

[0203] In some embodiments, if the second terminal disagrees with beam pairing with the first terminal, the third response information may further indicate a reason for rejecting beam pairing. For example, the reason may include at least one of the following:

[0204] The identifier of the first terminal is blacklisted by the second terminal;

[0205] In the time domain resources and frequency domain resources that the first terminal expects to perform direct link communication with the second terminal, the second terminal needs to communicate with other terminals;

[0206] There is relatively large interference (for example, greater than an interference threshold) on the time domain resources and frequency domain resources in which the first terminal expects to perform direct link communication with the second terminal.

[0207] In some embodiments, the first terminal may receive second response information sent by the network device, where the second response information is used to indicate whether the network device supports the auxiliary terminal to perform beam pairing.

[0208] Since the capabilities of different network devices may be different, for example, some network devices support auxiliary terminals for beam pairing, while some network devices do not support auxiliary terminals for beam pairing, the network device may send a second response message to the first terminal after receiving the first beam pairing request sent by the first terminal, and indicate the terminal through the second response message whether the network device supports auxiliary terminals for beam pairing.

[0209] For example, the first terminal determines that the network device supports auxiliary terminals for beam pairing, and can wait for the network device to indicate the first candidate beam. If the first terminal determines that the network device does not support auxiliary terminals for beam pairing, the first terminal can independently initiate a beam pairing process with the second terminal, or request other network devices to assist in beam pairing.

[0210] It should be noted that the network device can indicate the support of the function to the terminal through broadcast information or unicast information, for example, to indicate whether the network device supports the auxiliary terminal for beam pairing.

[0211] In some embodiments, when the network device supports beam pairing for an auxiliary terminal, the network device may determine the first candidate beam and the second candidate beam based on the method of the previous embodiment, determine the time domain resources and / or frequency domain resources for direct link communication between the first terminal and the second terminal, the first candidate beam for beam pairing between the first terminal and the second terminal, and indicate it to the first terminal through the first indication information. The network device may also determine the time domain resources and / or frequency domain resources for direct link communication between the first terminal and the second terminal, the second candidate beam for beam pairing between the second terminal and the first terminal, and indicate it to the second terminal through the second indication information.

[0212] It should be noted that the network device may further indicate to the first terminal, through the first indication information, the candidate beams for pairing the first terminal with the second terminal beam in other time domain resources and / or other frequency domain resources. The second indication information may further indicate to the second terminal, through the second indication information, the candidate beams for pairing the second terminal with the first terminal beam in other time domain resources and / or other frequency domain resources.

[0213] In some embodiments, the first candidate beam includes at least one of the following:

[0214] a beam of a first beamwidth;

[0215] a beam of a second beamwidth;

[0216] A beam of a second beamwidth within a beam of a first beamwidth, wherein the first beamwidth is greater than the second beamwidth.

[0217] In some embodiments, the first candidate beam may be a beam with a relatively large width, such as a beam with a first beam width, or may be a beam with a relatively small width, such as a beam with a second beam width.

[0218] In which, when the first candidate beam is a beam of the first beam width, the second candidate beam may also be a beam of the first beam width; when the first candidate beam is a beam of the second beam width, the second candidate beam may also be a beam of the second beam width.

[0219] Since the first beam width is relatively large and the second beam width is relatively small, within a certain angle range, beam pairing based on beams with the first beam width requires a relatively small number of beams to be considered, which is conducive to determining candidate beam pairs as quickly as possible.

[0220] However, since the first beam width is relatively large, the beam pairing accuracy of the beam with the first beam width is relatively low relative to the beam with the second beam width. The communication effect of the candidate beam pair determined based on the beam with the first beam width may be relatively poor compared to the candidate beam pair determined based on the beam with the second beam width.

[0221] Therefore, the network device can select a candidate beam pair determined based on a beam of the first beam width so as to determine the candidate beam pair as soon as possible, or can select a candidate beam pair determined based on a beam of the second beam width, which is conducive to ensuring the communication effect of the first terminal and the second terminal based on the candidate beam pair, or the network device can select the candidate beam pair determined based on the beam of the first beam width first, and then the candidate beam pair determined based on the beam of the second beam width.

[0222] Whether the network device selects a candidate beam pair determined based on a beam of the first beam width, or selects a candidate beam pair determined based on a beam of the second beam width, or first determines a candidate beam pair based on a beam of the first beam width and then determines a candidate beam pair based on a beam of the second beam width, can be determined autonomously by the network device or requested by the first terminal or the second terminal.

[0223] FIG4D is a schematic diagram showing a beam width according to an embodiment of the present disclosure.

[0224] As shown in Figure 4D, for example, the first beam width is 90 degrees and the second beam width is 30 degrees. In Figures 4A to 4C, the network device selects a candidate beam pair determined based on the beam of the first beam width.

[0225] If the first request is further based on a candidate beam pair determined based on a beam of the second beam width, then a candidate beam pair determined based on a beam of the second beam width may be further requested based on the candidate beam pair determined based on the beam of the first beam width.

[0226] For example, the second beam width is 30 degrees. When the first candidate beam is determined to be beam#14 and the second candidate beam is determined to be beam#22, beam#14 can further include three beams with the second beam width, which are divided into beam#141, beam#142, and beam#143. Beam#22 can further include three beams with the second beam width, which are divided into beam#221, beam#222, and beam#223.

[0227] The network device can calculate the absolute value of the difference between each beam in beam#141 (direction is 240 degrees), beam#142 (direction is 270 degrees), and beam#143 (direction is 300 degrees) and the relative direction, and determine the beam with the smallest corresponding absolute value of the difference as the first candidate beam. For example, after calculation, it can be determined that beam#143 is the first candidate beam based on the second beam width.

[0228] The network device can calculate the absolute value of the difference between each beam in beam#221 (direction of 105 degrees), beam#222 (direction of 135 degrees), and beam#223 (direction of 165 degrees) and the relative direction, and determine the beam with the smallest corresponding absolute value of the difference as the first candidate beam. For example, after calculation, it can be determined that beam#221 is the second candidate beam based on the second beam width.

[0229] In some embodiments, when indicating a beam of a first beam width and a beam of a second beam width, the network device may indicate through 4 bits.

[0230] For example, the first two bits of the four bits are used to indicate a beam of a first beamwidth, and the last two bits of the four bits are used to indicate a beam of a second beamwidth among the beams of the first beamwidth indicated by the first two bits.

[0231] For example, in the embodiment shown in FIG4D , the network device may indicate beam#14 to the first terminal through four bits 1100 and indicate beam#22 to the first terminal through four bits 0100.

[0232] Among them, when the last two bits of the four bits are both 0, it can be represented that the width of the indicated candidate beam (for example, the first candidate beam, the second candidate beam) is the first beam width; when at least one of the last two bits of the four bits is not 0, it can be represented that the width of the indicated candidate beam (for example, the first candidate beam, the second candidate beam) is the second beam width.

[0233] For example, the network device may indicate beam#143 to the first terminal through 4 bits 1111 and indicate beam#221 to the first terminal through 4 bits 0101.

[0234] FIG5 is a schematic flowchart showing a beam pairing according to an embodiment of the present disclosure.

[0235] As shown in Figure 5, the beam pairing process may include the following steps:

[0236] In step S501, the first terminal sends first capability information to the network device, where the first capability information is used to indicate at least one of the following: a beam scanning range supported by the first terminal; a beam width supported by the first terminal; and a codebook used by the first terminal.

[0237] In step S502, the network device sends a first response message to the first terminal regarding the first capability information. The first response message indicates a correspondence between a spatial angle range and a beam of the first terminal, thereby allowing the network device and the first terminal to reach a consensus on the relationship between the spatial angle range and the beam of the first terminal.

[0238] In step S503, when the first terminal expects to establish a direct link communication with the second terminal and perform beam pairing, if the network device is expected to assist the terminal in beam pairing, a first beam pairing request can be sent to the network device. The first beam pairing request is used to indicate at least one of the following: the identifier of the first terminal; the identifier of the second terminal (for example, the identifier of layer 2); the time domain resources for which the first terminal expects to perform direct link communication with the second terminal; the frequency domain resources for which the first terminal expects to perform direct link communication with the second terminal; the position of the second terminal; and the direction of the second terminal.

[0239] In step S504, the network device may send a second beam pairing request to the second terminal, where the second beam pairing request includes at least one of the following: an identifier of the first terminal; time domain resources for which the first terminal expects to communicate with the second terminal through a direct link; frequency domain resources for which the first terminal expects to communicate with the second terminal through a direct link; the location of the first terminal; and the direction of the first terminal.

[0240] In step S505, the second terminal may send a response message to the network device for the second beam pairing request, for example, third response message, indicating whether the second terminal agrees to beam pairing with the first terminal. If the second terminal disagrees with beam pairing with the first terminal, the third response message may further indicate the reason for rejecting beam pairing.

[0241] In step S506, the network device may send response information of the first beam pairing request to the terminal, for example, second response information, where the second response information is used to indicate whether the network device supports assisting the terminal in performing beam pairing.

[0242] In step S507, the network device may determine the first candidate beam and the second candidate beam based on the manner in which the embodiment described above determines the time domain resources and / or frequency domain resources for direct link communication between the first terminal and the second terminal, the first candidate beam for beam pairing between the first terminal and the second terminal, and indicate the first terminal through the first indication information. The network device may also indicate to the first terminal through the first indication information the candidate beams for beam pairing between the first terminal and the second terminal in other time domain resources and / or other frequency domain resources.

[0243] In step S508, the first terminal sends a beam pairing request to the second terminal through the first candidate beam.

[0244] In step S509 , the second terminal sends a response to the beam pairing request to the first terminal through the second candidate beam.

[0245] In step S508 and step S509, after the first terminal completes beam pairing with the second terminal, the first candidate beam can be used to perform direct link communication with the second terminal, and the second terminal can be used to perform direct link communication with the first terminal using the second candidate beam.

[0246] However, if the first candidate beam and the second candidate beam are beams of the first beam bandwidth, the first terminal and the second terminal may choose not to further determine a beam of the second beam bandwidth, or may choose to further determine a beam of the second beam bandwidth.

[0247] Among them, if it is selected to further determine the beam of the second beam bandwidth, the operation of further determining the beam of the second beam bandwidth can be implemented by the network device (for details, please refer to the embodiment of Figure 4D above, which will not be repeated here), or the first terminal and the second terminal can be based on the traditional beam pairing process, the first terminal uses several beams of the second beam bandwidth in the first candidate beam for beam scanning, and the first terminal uses several beams of the second beam bandwidth in the second candidate beam for beam scanning, so as to finally determine the beam of the second beam bandwidth for direct link communication.

[0248] In step S510, the first terminal determines that beam pairing is completed and sends a beam pairing service end identifier to the network device.

[0249] In step S511, the network device sends an auxiliary beam pairing service end identifier to the first terminal, so that the network device and the first terminal reach a consensus on the end of the auxiliary beam pairing service.

[0250] FIG6 is a schematic flowchart showing another beam pairing according to an embodiment of the present disclosure.

[0251] In some embodiments, since the first terminal and the second terminal perform beam pairing for direct link communication, when the beam pairing is performed before the direct link is established, the first terminal does not know the identifier of the second terminal during beam pairing.

[0252] In this case, that is, before the direct link between the first terminal and the second terminal is established, the first terminal and the second terminal perform beam pairing, and the first indication information sent by the network device to the first terminal is also used to indicate the identifier of the second terminal, so that the first terminal knows the identifier of the second terminal.

[0253] For example, as shown in FIG6 , based on the embodiment shown in FIG5 , step S507 may be adjusted to S507A, that is, based on the original S507, in step S507A, the first indication information may further indicate the identifier of the second terminal.

[0254] FIG7 is a schematic flowchart showing another beam pairing according to an embodiment of the present disclosure.

[0255] In some embodiments, since the first terminal and the second terminal perform beam pairing in order to perform direct link communication, when the beam pairing and the direct link establishment are performed simultaneously, during the beam pairing process, the first terminal and the second terminal also need to perform direct link communication (for example, including communication performed in order to establish a direct link).

[0256] When the first terminal needs to pair with the second terminal beam through the beam of the second beam width, it is necessary to determine the beam of the second beam width in the beam of the first beam width. This process takes a certain amount of time. Therefore, in the process of pairing with the second terminal beam through the beam of the second beam width, the first terminal can first conduct direct link communication with the second terminal through the beam of the first beam width, thereby realizing direct link communication before determining the beam of the second beam width, which is conducive to reducing communication delay.

[0257] For example, during the establishment of a direct link between the first terminal and the second terminal, the first terminal performs beam pairing with the second terminal. During the beam pairing of the first terminal with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the first beam width. After the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the second beam width.

[0258] For example, as shown in Figure 7, based on the embodiment shown in Figure 5, step S508 can be adjusted to S508A, and step S509 can be adjusted to S509A, that is, based on the original S508 and S509, in S508A and S509A, the first terminal can, on the one hand, conduct direct link communication with the second terminal through the beam of the first beam width, and on the other hand, can conduct beam pairing with the second terminal through the beam of the second beam width.

[0259] FIG8 is a schematic flowchart showing yet another beam pairing according to an embodiment of the present disclosure.

[0260] In some embodiments, since the first terminal and the second terminal perform beam pairing in order to perform direct link communication, when beam pairing is performed after the direct link is established, if the first terminal needs to pair the beam of the second terminal with the beam of the second beam width, it is necessary to determine the beam of the second beam width in the beam of the first beam width. This process takes a certain amount of time, so before pairing the beam of the second terminal with the beam of the second beam width, the first terminal can first perform direct link communication with the second terminal through the beam of the first beam width, thereby realizing direct link communication before determining the beam of the second beam width, which is beneficial to reducing communication delay.

[0261] That is, after the direct link between the first terminal and the second terminal is established, the first terminal performs beam pairing with the second terminal, and before the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the first beam width; after the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the second beam width.

[0262] For example, as shown in Figure 8, based on the embodiment shown in Figure 5, step S512 can be added before step S508. In step S512, the first terminal can first use the beam of the first beam width to communicate with the second terminal in a direct link, and wait until steps S508 and S509 are based on the beam of the second beam width to pair the beam with the second terminal, and then communicate with the second terminal in a direct link through the beam of the second beam width.

[0263] The communication method involved in the embodiments of the present disclosure may include at least one of steps S301 and S302. For example, step S301 may be implemented as an independent embodiment, step S302 may be implemented as an independent embodiment, and steps S301+S302 may be implemented as independent embodiments, but are not limited thereto.

[0264] In some embodiments, steps S301 and S302 may be performed in an interchangeable order or simultaneously.

[0265] In some embodiments, step S301 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0266] In some embodiments, step S302 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0267] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 .

[0268] In a first aspect, embodiments of the present disclosure provide a method for receiving information. FIG9 is a schematic flow chart illustrating a method for receiving information according to an embodiment of the present disclosure. The method for receiving information illustrated in this embodiment may be executed by a first terminal.

[0269] As shown in FIG9 , the information receiving method may include the following steps:

[0270] In step S901, first indication information sent by a network device is received, wherein the first indication information is used to indicate a first candidate beam, and the first candidate beam is a candidate beam for pairing a first terminal with a second terminal beam.

[0271] It should be noted that the embodiment shown in FIG. 9 can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed and the present disclosure does not limit it.

[0272] In some embodiments, the method further includes: sending first capability information to the network device, wherein the first capability information is used to indicate at least one of the following: a beam scanning range supported by the first terminal; and a beam width supported by the first terminal.

[0273] In some embodiments, the method further includes: receiving first response information sent by the network device, wherein the first response information is used to indicate a correspondence between the spatial angle range and the beam of the first terminal.

[0274] In some embodiments, the method also includes: sending a first beam pairing request to the network device, wherein the first beam pairing request is used to indicate at least one of the following: an identifier of the first terminal; an identifier of the second terminal; time domain resources for which the first terminal expects to communicate with the second terminal for a direct link; frequency domain resources for which the first terminal expects to communicate with the second terminal for a direct link; the position of the second terminal; and the direction of the second terminal.

[0275] In some embodiments, the method further includes: receiving second response information sent by the network device, wherein the second response information is used to indicate whether the network device supports the auxiliary terminal to perform beam pairing.

[0276] In some embodiments, the first indication information is used to indicate a first candidate beam for beam pairing between the first terminal and the second terminal in time domain resources and / or frequency domain resources.

[0277] In some embodiments, the first candidate beam includes at least one of: a beam of a first beam width; a beam of a second beam width; a beam of the second beam width among the beams of the first beam width, wherein the first beam width is greater than the second beam width.

[0278] In some embodiments, during the establishment of a direct link between the first terminal and the second terminal, the first terminal and the second terminal perform beam pairing, and during the beam pairing of the first terminal with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the first beam width; after the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the second beam width.

[0279] In some embodiments, after a direct link is established between the first terminal and the second terminal, the first terminal performs beam pairing with the second terminal, and before the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the first beam width; after the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the second beam width.

[0280] For the first aspect and the optional implementation of the optional embodiment of the first aspect, reference can be made to the optional implementation in the embodiment shown in FIG3 and other related parts of the embodiment involved in FIG3 , which will not be described in detail here.

[0281] In a second aspect, embodiments of the present disclosure provide a method for sending information. Figure 10 is a schematic flow chart illustrating a method for sending information according to an embodiment of the present disclosure. The method for sending information illustrated in this embodiment can be executed by a network device.

[0282] As shown in FIG10 , the information sending method may include the following steps:

[0283] In step S1001, first indication information is sent to the first terminal, and / or second indication information is sent to the second terminal; wherein the first indication information is used to indicate a first candidate beam, which is a candidate beam paired with the beam of the first terminal and the second terminal, and the second indication information is used to indicate a second beam, which is a candidate beam paired with the beam of the second terminal and the first terminal.

[0284] It should be noted that the embodiment shown in FIG. 10 can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed, and the present disclosure does not limit it.

[0285] In some embodiments, the method further includes: receiving first capability information sent by the first terminal, wherein the first capability information is used to indicate at least one of the following: a beam scanning range supported by the first terminal; and a beam width supported by the first terminal.

[0286] In some embodiments, the method further includes: sending first response information to the first terminal, wherein the first response information is used to indicate a correspondence between the spatial angle range and the beam of the first terminal.

[0287] In some embodiments, the method also includes: receiving a first beam pairing request sent by the first terminal, wherein the first beam pairing request is used to indicate at least one of the following: an identifier of the first terminal; an identifier of the second terminal; time domain resources for which the first terminal expects to conduct direct link communication with the second terminal; frequency domain resources for which the first terminal expects to conduct direct link communication with the second terminal; the position of the second terminal; and the direction of the second terminal.

[0288] In some embodiments, the method further includes: sending second response information to the first terminal, wherein the second response information is used to indicate whether the network device supports assisting the terminal in performing beam pairing.

[0289] In some embodiments, the method further includes: sending a second beam pairing request to the second terminal, wherein the second beam pairing request includes at least one of the following: an identifier of the first terminal; time domain resources for which the first terminal expects to communicate with the second terminal for a direct link; frequency domain resources for which the first terminal expects to communicate with the second terminal for a direct link; the position of the first terminal; and the direction of the first terminal.

[0290] In some embodiments, the method further includes: receiving third response information sent by the second terminal, wherein the third response information is used to indicate whether the second terminal agrees to perform beam pairing with the first terminal.

[0291] In some embodiments, the first indication information is used to indicate a first candidate beam for beam pairing between the first terminal and the second terminal in time domain resources and / or frequency domain resources.

[0292] In some embodiments, the first candidate beam and / or the second candidate beam includes at least one of the following: a beam of a first beam width; a beam of a second beam width; a beam of the second beam width among the beams of the first beam width, wherein the first beam width is greater than the second beam width.

[0293] For the second aspect and the optional implementation of the optional embodiment of the second aspect, please refer to the optional implementation in the embodiment shown in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be repeated here.

[0294] In a third aspect, embodiments of the present disclosure provide a method for receiving information. Figure 11 is a schematic flow chart illustrating a method for receiving information according to an embodiment of the present disclosure. The method for receiving information illustrated in this embodiment can be executed by a second terminal.

[0295] As shown in FIG11 , the information receiving method may include the following steps:

[0296] In step S1101, second indication information sent by a network device is received, wherein the second indication information is used to indicate a second candidate beam, where the second beam is a candidate beam for pairing a second terminal with a first terminal beam.

[0297] It should be noted that the embodiment shown in FIG. 11 can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed and the present disclosure does not limit it.

[0298] In some embodiments, the method further includes: receiving a second beam pairing request sent by the network device, wherein the second beam pairing request includes at least one of the following: an identifier of the first terminal; time domain resources for which the first terminal expects to communicate with the second terminal for a direct link; frequency domain resources for which the first terminal expects to communicate with the second terminal for a direct link; the position of the second terminal; and the direction of the second terminal.

[0299] In some embodiments, the method further includes: sending third response information to the network device, wherein the third response information is used to indicate whether the second terminal agrees to perform beam pairing with the first terminal.

[0300] In some embodiments, the first candidate beam includes at least one of: a beam of a first beam width; a beam of a second beam width; a beam of the second beam width among the beams of the first beam width, wherein the first beam width is greater than the second beam width.

[0301] For the optional implementation of the optional embodiments of the third aspect and the second aspect, reference can be made to the optional implementation in the embodiment shown in FIG3 and other related parts in the embodiment involved in FIG3 , which will not be described in detail here.

[0302] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0303] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" may be used interchangeably. For example, a codebook may be a collection of one or more codewords / precoding matrices.

[0304] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0305] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0306] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0307] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "some", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "some A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, some A, any A, or first A, etc., but are not limited to this.

[0308] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0309] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0310] Corresponding to the aforementioned embodiments of the information sending method and the information receiving method, the present disclosure also provides embodiments of an information sending device and an information receiving device.

[0311] Figure 12 is a schematic block diagram of an information receiving device according to an embodiment of the present disclosure. For example, the information receiving device may be provided in a first terminal.

[0312] As shown in FIG12 , the information receiving device includes: a receiving module 1201 .

[0313] In some implementations, the receiving module is configured to receive first indication information sent by a network device, wherein the first indication information is used to indicate a first candidate beam, which is a candidate beam for pairing the first terminal with a second terminal beam.

[0314] In some implementations, the apparatus further includes: a sending module configured to send first capability information to the network device, wherein the first capability information is used to indicate at least one of: a beam scanning range supported by the first terminal; and a beam width supported by the first terminal.

[0315] In some implementations, the receiving module is further configured to receive first response information sent by the network device, wherein the first response information is used to indicate a correspondence between a spatial angle range and a beam of the first terminal.

[0316] In some embodiments, the apparatus further includes: a sending module configured to send a first beam pairing request to the network device, wherein the first beam pairing request is used to indicate at least one of the following: an identifier of the first terminal; an identifier of the second terminal; time domain resources for which the first terminal expects to communicate with the second terminal for a direct link; frequency domain resources for which the first terminal expects to communicate with the second terminal for a direct link; the position of the second terminal; and the direction of the second terminal.

[0317] In some implementations, the receiving module is further configured to receive second response information sent by the network device, wherein the second response information is used to indicate whether the network device supports assisting the terminal in beam pairing.

[0318] In some implementations, the first indication information is used to indicate a first candidate beam for beam pairing between the first terminal and the second terminal in the time domain resources and / or the frequency domain resources.

[0319] In some implementations, the first candidate beam includes at least one of: a beam of a first beamwidth; a beam of a second beamwidth; a beam of the second beamwidth among the beams of the first beamwidth, wherein the first beamwidth is greater than the second beamwidth.

[0320] In some implementations, during the establishment of a direct link between the first terminal and the second terminal, the first terminal performs beam pairing with the second terminal, and during the beam pairing of the first terminal with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the first beam width; after the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the second beam width.

[0321] In some implementations, after a direct link is established between the first terminal and the second terminal, the first terminal performs beam pairing with the second terminal, and before the first terminal completes beam pairing with the second terminal through a beam of the second beam width, the first terminal performs direct link communication with the second terminal through a beam of the first beam width; after the first terminal completes beam pairing with the second terminal through a beam of the second beam width, the first terminal performs direct link communication with the second terminal through a beam of the second beam width.

[0322] FIG13 is a schematic block diagram of an information sending device according to an embodiment of the present disclosure. For example, the information sending device can be set in a network device. As shown in FIG13 , the information sending device includes: a sending module 1301.

[0323]

[0324] In some embodiments, the sending module is configured to send first indication information to the first terminal, and / or send second indication information to the second terminal; wherein, the first indication information is used to indicate a first candidate beam, and the first candidate beam is a candidate beam paired with the first terminal beam, and the second indication information is used to indicate a second candidate beam, and the second candidate beam is a candidate beam paired with the second terminal beam.

[0325] In some embodiments, the device also includes: a receiving module configured to receive first capability information sent by the first terminal, wherein the first capability information is used to indicate at least one of the following: a beam scanning range supported by the first terminal; a beam width supported by the first terminal.

[0326] In some embodiments, the sending module is further configured to send first response information to the first terminal, wherein the first response information is used to indicate a correspondence between a spatial angle range and a beam of the first terminal.

[0327] In some embodiments, the device also includes: a receiving module configured to receive a first beam pairing request sent by the first terminal, wherein the first beam pairing request is used to indicate at least one of the following: an identifier of the first terminal; an identifier of the second terminal; time domain resources for which the first terminal expects to communicate with the second terminal for a direct link; frequency domain resources for which the first terminal expects to communicate with the second terminal for a direct link; the position of the second terminal; and the direction of the second terminal.

[0328] In some embodiments, the sending module is further configured to send second response information to the first terminal, wherein the second response information is used to indicate whether the network device supports assisting the terminal in beam pairing.

[0329] In some embodiments, the sending module is further configured to send a second beam pairing request to the second terminal, wherein the second beam pairing request includes at least one of the following: an identifier of the first terminal; time domain resources for which the first terminal expects to communicate with the second terminal for a direct link; frequency domain resources for which the first terminal expects to communicate with the second terminal for a direct link; the location of the first terminal; and the direction of the first terminal.

[0330] In some embodiments, the apparatus further includes: a receiving module configured to receive third response information sent by the second terminal, wherein the third response information is used to indicate whether the second terminal agrees to perform beam pairing with the first terminal.

[0331] In some embodiments, the first indication information is used to indicate a first candidate beam for beam pairing between the first terminal and the second terminal in the time domain resources and / or the frequency domain resources.

[0332] In some embodiments, the first candidate beam and / or the second candidate beam includes at least one of the following: a beam of a first beam width; a beam of a second beam width; a beam of the second beam width in the beam of the first beam width, wherein the first beam width is greater than the second beam width.

[0333] Figure 14 is a schematic block diagram of an information receiving device according to an embodiment of the present disclosure. For example, the information receiving device may be provided in the second terminal.

[0334] As shown in FIG14 , the information receiving device includes: a receiving module 1401 .

[0335] In some embodiments, the receiving module is configured to receive second indication information sent by the network device, wherein the second indication information is used to indicate a second candidate beam, and the second candidate beam is a candidate beam paired with the second terminal and the first terminal beam.

[0336] In some embodiments, the apparatus further includes: receiving a second beam pairing request sent by the network device, wherein the second beam pairing request includes at least one of the following: an identifier of the first terminal; time domain resources for which the first terminal expects to communicate with the second terminal for a direct link; frequency domain resources for which the first terminal expects to communicate with the second terminal for a direct link; the position of the second terminal; and the direction of the second terminal.

[0337] In some embodiments, the apparatus further includes: a sending module configured to send third response information to the network device, wherein the third response information is used to indicate whether the second terminal agrees to perform beam pairing with the first terminal.

[0338] In some embodiments, the first candidate beam includes at least one of: a beam of a first beam width; a beam of a second beam width; a beam of the second beam width among the beams of the first beam width, wherein the first beam width is greater than the second beam width.

[0339] For the device embodiment, since it basically corresponds to the method embodiment, the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely illustrative, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art can understand and implement it without paying any creative work.

[0340] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step 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.

[0341] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0342] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0343] Figure 15A is a schematic diagram of the structure of a communication device 15100 proposed in an embodiment of the present disclosure. Communication device 15100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 15100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0344] As shown in Figure 15A, the communication device 15100 includes one or more processors 15101. The processor 15101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 15100 is used to perform any of the above methods. Optionally, one or more processors 15101 are used to call instructions to enable the communication device 15100 to perform any of the above methods.

[0345] In some embodiments, the communication device 15100 further includes one or more transceivers 15102. When the communication device 15100 includes one or more transceivers 15102, the transceiver 15102 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, steps S301 and S302, but not limited thereto), and the processor 15101 performs at least one of the other steps (for example, steps S301 and S302, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc. may be interchangeable, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. may be interchangeable, and the terms receiver, receiving unit, receiver, receiving circuit, etc. may be interchangeable.

[0346] In some embodiments, the communication device 15100 further includes one or more memories 15103 for storing data. Alternatively, all or part of the memories 15103 may be located outside the communication device 15100. In alternative embodiments, the communication device 15100 may include one or more interface circuits 15104. Optionally, the interface circuits 15104 are connected to the memory 15102 and may be configured to receive data from the memory 15102 or other devices, or to send data to the memory 15102 or other devices. For example, the interface circuits 15104 may read data stored in the memory 15102 and send the data to the processor 15101.

[0347] The communication device 15100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 15100 described in the present disclosure is not limited thereto, and the structure of the communication device 15100 may not be limited by FIG. 15A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0348] FIG15B is a schematic diagram of the structure of a chip 15200 according to an embodiment of the present disclosure. If the communication device 15100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 15200 shown in FIG15B , but the present disclosure is not limited thereto.

[0349] The chip 15200 includes one or more processors 15201. The chip 15200 is configured to execute any of the above methods.

[0350] In some embodiments, chip 15200 further includes one or more interface circuits 15202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 15200 further includes one or more memories 15203 for storing data. Alternatively, all or part of memory 15203 may be located external to chip 15200. Optionally, interface circuit 15202 is connected to memory 15203 and may be configured to receive data from memory 15203 or other devices, or to send data to memory 15203 or other devices. For example, interface circuit 15202 may read data stored in memory 15203 and send the data to processor 15201.

[0351] In some embodiments, interface circuit 15202 performs at least one of the communication steps (e.g., steps S301 and S302, but not limited thereto) of the aforementioned method. Interface circuit 15202 performing the communication steps (e.g., steps S301 and S302, but not limited thereto) of the aforementioned method, for example, means that interface circuit 15202 performs data exchange between processor 15201, chip 15200, memory 15203, or a transceiver device. In some embodiments, processor 15201 performs at least one of the other steps (e.g., steps S301 and S302, but not limited thereto).

[0352] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0353] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 15100, the communication device 15100 is caused to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0354] The present disclosure also provides a program product, which, when executed by the communication device 15100, enables the communication device 15100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0355] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A method for receiving information, characterized in that: Executed by a first terminal, the method includes: Receive first indication information sent by a network device, wherein the first indication information is used to indicate a first candidate beam, and the first candidate beam is a candidate beam paired with the first terminal and the second terminal beam.

2. The method according to claim 1, characterized in that The method further comprises: Sending first capability information to the network device, where the first capability information is used to indicate at least one of the following: a beam scanning range supported by the first terminal; The beamwidth supported by the first terminal.

3. The method according to claim 2, characterized in that The method further comprises: Receive first response information sent by the network device, wherein the first response information is used to indicate a correspondence between a spatial angle range and a beam of the first terminal.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: Sending a first beam pairing request to the network device, wherein the first beam pairing request is used to indicate at least one of the following: an identifier of the first terminal; an identifier of the second terminal; A time domain resource that the first terminal expects to use for direct link communication with the second terminal; frequency domain resources that the first terminal desires to use for direct link communication with the second terminal; the location of the second terminal; The direction of the second terminal.

5. The method according to any one of claims 4, characterized in that The method further comprises: Receive second response information sent by the network device, wherein the second response information is used to indicate whether the network device supports assisting the terminal to perform beam pairing.

6. The method according to claim 4 or 5, characterized in that The first indication information is used to indicate a first candidate beam for beam pairing between the first terminal and the second terminal in the time domain resources and / or the frequency domain resources.

7. The method according to any one of claims 1 to 6, characterized in that The first candidate beam includes at least one of the following: a beam of a first beamwidth; a beam of a second beamwidth; The second beamwidth beam is one of the beams of the first beamwidth, wherein the first beamwidth is greater than the second beamwidth.

8. The method according to claim 7, characterized in that During the process of establishing a direct link between the first terminal and the second terminal, the first terminal and the second terminal perform beam pairing. During beam pairing between the first terminal and the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the first beam width; After the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the second beam width.

9. The method according to claim 7, characterized in that After a direct link between the first terminal and the second terminal is established, the first terminal and the second terminal perform beam pairing. Before the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the first beam width; After the first terminal completes beam pairing with the second terminal through the beam of the second beam width, the first terminal performs direct link communication with the second terminal through the beam of the second beam width.

10. A method for sending information, characterized in that: Executed by a network device, the method includes: Sending first indication information to the first terminal, and / or sending second indication information to the second terminal; The first indication information is used to indicate a first candidate beam, which is a candidate beam paired with the first terminal and the second terminal beam; the second indication information is used to indicate a second candidate beam, which is a candidate beam paired with the second terminal and the first terminal beam.

11. The method according to claim 10, characterized in that The method further comprises: Receive first capability information sent by the first terminal, where the first capability information is used to indicate at least one of the following: a beam scanning range supported by the first terminal; The beamwidth supported by the first terminal.

12. The method according to claim 11, characterized in that The method further comprises: Sending first response information to the first terminal, wherein the first response information is used to indicate a correspondence between a spatial angle range and a beam of the first terminal.

13. The method according to any one of claims 10 to 12, characterized in that The method further comprises: Receive a first beam pairing request sent by the first terminal, where the first beam pairing request is used to indicate at least one of the following: an identifier of the first terminal; an identifier of the second terminal; A time domain resource that the first terminal expects to use for direct link communication with the second terminal; frequency domain resources that the first terminal desires to use for direct link communication with the second terminal; the location of the second terminal; The direction of the second terminal.

14. The method according to any one of claims 13, characterized in that The method further comprises: Sending second response information to the first terminal, wherein the second response information is used to indicate whether the network device supports assisting the terminal in beam pairing.

15. The method according to claim 13, characterized in that The method further comprises: Sending a second beam pairing request to the second terminal, wherein the second beam pairing request includes at least one of the following: an identifier of the first terminal; A time domain resource that the first terminal expects to use for direct link communication with the second terminal; frequency domain resources that the first terminal desires to use for direct link communication with the second terminal; the location of the first terminal; The direction of the first terminal.

16. The method according to claim 15, characterized in that The method further comprises: Receive third response information sent by the second terminal, where the third response information is used to indicate whether the second terminal agrees to perform beam pairing with the first terminal.

17. The method according to any one of claims 13 to 16, characterized in that The first indication information is used to indicate a first candidate beam for beam pairing between the first terminal and the second terminal in the time domain resources and / or the frequency domain resources.

18. The method according to any one of claims 10 to 17, characterized in that The first candidate beam and / or the second candidate beam include at least one of the following: a beam of a first beamwidth; a beam of a second beamwidth; The second beamwidth beam is one of the beams of the first beamwidth, wherein the first beamwidth is greater than the second beamwidth.

19. A method for receiving information, characterized in that: Executed by the second terminal, the method includes: Receive second indication information sent by the network device, wherein the second indication information is used to indicate a second candidate beam, and the second candidate beam is a candidate beam paired with the second terminal and the first terminal beam.

20. The method according to claim 19, characterized in that The method further comprises: Receive a second beam pairing request sent by the network device, wherein the second beam pairing request includes at least one of the following: an identifier of the first terminal; A time domain resource that the first terminal expects to use for direct link communication with the second terminal; frequency domain resources that the first terminal desires to use for direct link communication with the second terminal; the location of the second terminal; The direction of the second terminal.

21. The method according to claim 20, characterized in that The method further comprises: Send third response information to the network device, where the third response information is used to indicate whether the second terminal agrees to perform beam pairing with the first terminal.

22. The method according to any one of claims 19 to 21, characterized in that The first candidate beam includes at least one of the following: a beam of a first beamwidth; a beam of a second beamwidth; The second beamwidth beam is one of the beams of the first beamwidth, wherein the first beamwidth is greater than the second beamwidth.

23. An information receiving device, characterized in that: The device comprises: The receiving module is configured to receive first indication information sent by a network device, wherein the first indication information is used to indicate a first candidate beam, and the first candidate beam is a candidate beam paired with the first terminal and the second terminal beam.

24. An information sending device, characterized in that: The device comprises: a sending module, configured to send first indication information to the first terminal, and / or send second indication information to the second terminal; The first indication information is used to indicate a first candidate beam, which is a candidate beam paired with the first terminal and the second terminal beam; the second indication information is used to indicate a second candidate beam, which is a candidate beam paired with the second terminal and the first terminal beam.

25. An information receiving device, characterized in that: The device comprises: The receiving module is configured to receive second indication information sent by the network device, wherein the second indication information is used for a second candidate beam for pairing the second terminal with the first terminal beam.

26. A first terminal, characterized in that: include: one or more processors; The terminal is used to execute the information receiving method according to any one of claims 1 to 9.

27. A network device, characterized in that: include: one or more processors; Wherein, the network device is used to execute the information sending method described in any one of claims 10 to 18.

28. A second terminal, characterized in that: include: one or more processors; The terminal is used to execute the information receiving method according to any one of claims 19 to 22.

29. A communication system, characterized in that: The invention comprises a first terminal, a second terminal and a network device, wherein the first terminal is configured to implement the information receiving method according to any one of claims 1 to 9, the network device is configured to implement the information sending method according to any one of claims 10 to 18, and the second terminal is configured to implement the information receiving method according to any one of claims 19 to 22.

30. A storage medium storing instructions, characterized in that: When the instruction is executed on the communication device, the communication device executes the information receiving method described in any one of claims 1 to 9, and / or the information sending method described in any one of claims 10 to 18, and / or the information receiving method described in any one of claims 19 to 22.

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