WO2025015481A1 - 信息传输方法及装置、存储介质 - Google Patents

信息传输方法及装置、存储介质 Download PDF

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Publication number
WO2025015481A1
WO2025015481A1 PCT/CN2023/107595 CN2023107595W WO2025015481A1 WO 2025015481 A1 WO2025015481 A1 WO 2025015481A1 CN 2023107595 W CN2023107595 W CN 2023107595W WO 2025015481 A1 WO2025015481 A1 WO 2025015481A1
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WIPO (PCT)
Prior art keywords
terminal
network device
base station
indication information
signal quality
Prior art date
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PCT/CN2023/107595
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English (en)
French (fr)
Inventor
李小龙
朱亚军
洪伟
赵金铭
李勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to PCT/CN2023/107595 priority Critical patent/WO2025015481A1/zh
Priority to CN202380010141.9A priority patent/CN121605704A/zh
Publication of WO2025015481A1 publication Critical patent/WO2025015481A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements

Definitions

  • the present disclosure relates to the field of communications, and in particular to an information transmission method and device, and a storage medium.
  • NTN non-terrestrial network
  • 3GPP 3rd Generation Partnership Project
  • the embodiments of the present disclosure provide an information transmission method and device, and a storage medium.
  • an information transmission method including:
  • the first network device sends terminal location information to the second network device, where the terminal location information is used by the terminal to perform cell switching.
  • an information transmission method including:
  • an information transmission method including:
  • the terminal receives result indication information, where the result indication information is used to indicate the result of the impact of the terminal position on the signal quality;
  • the transceiver module is configured to send the terminal location information from the first network device to the second network device, where the terminal location information is used for the terminal to perform cell switching.
  • a second network device including:
  • the transceiver module is configured to receive the terminal location information sent by the first network device as the second network device, and the terminal location information is used for the terminal to perform cell switching.
  • a terminal including:
  • a transceiver module configured to receive result indication information of a terminal, wherein the result indication information is used to indicate the result of the influence of the terminal position on the signal quality;
  • the processing module is configured to determine, at least based on the result indication information, a target distribution unit of a target base station or a serving base station to be accessed when performing cell switching.
  • a network device including:
  • processors one or more processors
  • the network device is used to execute the information transmission method described in any one of the first aspect or the second aspect.
  • a terminal including:
  • processors one or more processors
  • the terminal is used to execute the method for information transmission described in any one of the third aspects.
  • a communication system comprising a first network device, a second network device, and a terminal, wherein the first network device is configured to implement the information transmission method described in any one of the first aspect, the second network device is configured to implement the information transmission method described in any one of the second aspect, and the terminal is configured to implement the information transmission method described in any one of the third aspect.
  • a storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes an information transmission method as described in any one of the first aspect, the second aspect or the third aspect.
  • the disclosed embodiments can exchange terminal location information between network devices, thereby improving the reliability of the terminal when performing cell switching and improving the availability of NTN communications.
  • FIG1A is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.
  • FIG1B is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.
  • FIG. 1C is an exemplary schematic diagram of an NTN network architecture provided according to an embodiment of the present disclosure.
  • FIG1D is an exemplary interactive diagram of a conditional switching process provided according to an embodiment of the present disclosure.
  • FIG. 1E is an exemplary interactive diagram of a conditional switching process provided according to an embodiment of the present disclosure.
  • FIG2A is an exemplary interaction diagram of an information transmission method provided according to an embodiment of the present disclosure.
  • FIG. 2B is an exemplary interaction diagram of an information transmission method provided according to an embodiment of the present disclosure.
  • FIG. 3A is an exemplary interaction diagram of an information transmission method provided according to an embodiment of the present disclosure.
  • FIG. 3B is an exemplary interaction diagram of an information transmission method provided according to an embodiment of the present disclosure.
  • FIG3C is an exemplary interaction diagram of an information transmission method provided according to an embodiment of the present disclosure.
  • FIG. 4A is an exemplary interaction diagram of an information transmission method provided according to an embodiment of the present disclosure.
  • FIG. 4B is an exemplary interaction diagram of an information transmission method provided according to an embodiment of the present disclosure.
  • FIG. 5A is a schematic diagram of an exemplary interaction of an information transmission device provided according to an embodiment of the present disclosure.
  • FIG5B is an exemplary interaction diagram of an information transmission device provided according to an embodiment of the present disclosure.
  • FIG5C is an exemplary interaction diagram of an information transmission device provided according to an embodiment of the present disclosure.
  • FIG6A is a schematic diagram of an exemplary interaction of a communication device provided according to an embodiment of the present disclosure.
  • FIG6B is an exemplary interaction diagram of a chip provided according to an embodiment of the present disclosure.
  • first, second, third, etc. may be used in the present disclosure to describe various messages, these messages should not be limited to these terms. These terms are only used to distinguish messages of the same type from each other.
  • a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message.
  • the word "if” as used herein may be interpreted as "at the time of” or "when” or "in response to determining”.
  • the embodiments of the present disclosure provide an information transmission method and device, and a storage medium.
  • an embodiment of the present disclosure provides an information transmission method, including:
  • the first network device sends terminal location information to the second network device, where the terminal location information is used by the terminal to perform cell switching.
  • the first network device can send the terminal location information to the second network device.
  • the terminal location information can be used for the terminal to perform cell switching, thereby improving the reliability of the terminal when performing cell switching and improving the availability of NTN communication.
  • the method further includes:
  • the first network device receives result indication information sent by the second network device, where the result indication information is used to indicate a result of an impact of a terminal location on a signal quality.
  • the second network device can provide result indication information to the first network device, wherein the result indication information is used to indicate the result of the impact of the terminal position on the signal quality, so that the first network device or the terminal determines the target base station to be accessed or the target distribution unit of the service base station when the terminal performs cell switching based on at least the result indication information, thereby improving the reliability of the terminal when performing cell switching and improving the availability of NTN communication.
  • the result indication information is used to instruct the second network device to adjust beam parameters based on the terminal position to determine the impact result on the signal quality.
  • the second network device can adjust the beam parameters based on the terminal position to determine the impact result of the signal quality, thereby improving the reliability of the terminal when performing cell switching.
  • the beam parameter includes at least one of the following:
  • the pointing parameter of the beam includes at least one of the following: a beam width parameter; a pointing parameter of the beam center point position;
  • the shape parameters of the beam are the shape parameters of the beam.
  • the beam parameters may include but are not limited to the pointing parameters of the beam, the shape parameters of the beam, etc., which are easy to implement and have high availability.
  • the signal includes at least one of the following:
  • a downlink signal from the second network device received by the terminal receives
  • the signal in the embodiment of the present disclosure not only involves the uplink signal from the terminal received by the second network device, but also involves the downlink signal from the second network device received by the terminal, that is, the impact on the uplink and downlink signal quality is taken into account at the same time, so as to perform cell switching, improve the reliability of the terminal performing cell switching, and achieve coverage enhancement of the uplink and downlink signal quality.
  • the result indication information is used to indicate any of the following:
  • the terminal position will not affect the signal quality
  • the terminal position may affect the signal quality
  • the terminal position will improve the signal quality
  • the end position can reduce the signal quality.
  • the result indication information may be used to indicate at least one of the above items, and the reliability of the cell switching may be improved by combining the result of the impact on the signal quality when performing the cell switching.
  • the first network device sending the terminal location information to the second network device includes any of the following:
  • the first network device sends a handover request message to the second network device, where the handover request message includes the terminal location information;
  • the first network device sends a terminal context establishment request message to the second network device, where the terminal context establishment request message includes the terminal location information.
  • the first network device can reuse the handover request message or the terminal context establishment request message to provide the terminal location information to the second network device, which has little change to the protocol and high availability.
  • the first network device receiving the result indication information sent by the second network device includes any one of the following:
  • the first network device receives a switching response message sent by the second network device, where the switching response message includes the result indication information;
  • the first network device receives a terminal context establishment response message sent by the second network device, where the terminal context establishment response includes the result indication information.
  • the second network device can reuse the handover response message or the terminal context establishment response message to provide the result indication information to the first network device, which has little change to the protocol and high availability.
  • the first network device is a source base station of the terminal, and the second network device is a candidate base station of the terminal; or
  • the first network device is a centralized unit of a serving base station of a terminal
  • the second network device is a candidate distributed unit of the serving base station.
  • the information transmission method can be applicable to a cell switching scenario across base stations or a cell switching scenario across distributed units, and has high availability.
  • the method further includes:
  • the first network device determines, at least based on the result indication information, a target distribution unit of a target base station or a serving base station to be accessed by the terminal when performing cell switching.
  • the first network device can determine the target distribution unit of the target base station or serving base station to be accessed by the terminal when performing cell switching based on at least the result indication information, thereby improving the reliability of the terminal performing cell switching.
  • the method further includes:
  • the first network device sends result indication information to the terminal or a source distribution unit of a serving base station of the terminal, where the result indication information is used by the terminal to determine a target base station to be accessed or a target distribution unit of a serving base station when performing cell switching.
  • the first network device may also send the result indication information to the terminal, or send the result indication information to the source distribution unit of the service base station of the terminal, which is forwarded to the terminal by the source distribution unit, so that the terminal determines the target base station to be accessed or the target distribution unit of the service base station when performing cell switching based on at least the result indication information, thereby improving the reliability of the terminal when performing cell switching and improving the availability of NTN communication.
  • the method further includes any of the following:
  • the first network device receives the terminal location information reported by the terminal;
  • the first network device receives the terminal location information forwarded by a source distribution unit of a serving base station of the terminal, where the terminal location information is reported by the terminal to the source distribution unit.
  • the first network device can obtain the terminal location information from the terminal or the source distribution unit of the terminal's service base station, and provide it to the second network device, which is simple to implement and has high availability.
  • an information transmission method including:
  • the second network device receives the terminal location information sent by the first network device, where the terminal location information is used by the terminal to perform cell switching.
  • the second network device can obtain the terminal location information from the first network device.
  • the terminal location information is used for the terminal to perform cell switching, thereby improving the reliability of the terminal when performing cell switching and improving the availability of NTN communication.
  • the method further includes:
  • the second network device adjusts the beam parameters based on the terminal position.
  • the second network device can adjust the beam parameters based on the terminal position to determine the impact on the signal quality, and assist the terminal or the first network device in determining the target base station to be accessed or the target distribution unit of the serving base station when the terminal performs cell switching. This improves the reliability of the terminal when performing cell switching and improves the availability of NTN communication.
  • the method further includes:
  • the result indication information is used to instruct the second network device to adjust beam parameters based on the terminal position to determine the impact result on the signal quality.
  • the beam parameter includes at least one of the following:
  • the pointing parameter of the beam includes at least one of the following: a beam width parameter; a pointing parameter of the beam center point position;
  • the shape parameters of the beam are the shape parameters of the beam.
  • the signal includes at least one of the following:
  • a downlink signal from the second network device received by the terminal receives
  • the result indication information is used to indicate any of the following:
  • the terminal position will not affect the signal quality
  • the terminal position may affect the signal quality
  • the terminal position will improve the signal quality
  • the end position can reduce the signal quality.
  • the second network device receives the terminal location information sent by the first network device, including any of the following:
  • the second network device receives a handover request message sent by the first network device, where the handover request message includes the terminal location information;
  • the second network device receives a terminal context establishment request message sent by the first network device, where the terminal context establishment request message includes the terminal location information.
  • the second network device sending result indication information to the first network device includes any one of the following:
  • the second network device sends a switching response message to the first network device, where the switching response message includes the result indication information
  • the second network device sends a terminal context establishment response message to the first network device, where the terminal context establishment response includes the result indication information.
  • the first network device is a source base station of the terminal, and the second network device is a candidate base station of the terminal;
  • the first network device is a centralized unit of a serving base station of a terminal
  • the second network device is a candidate distributed unit of the serving base station.
  • an information transmission method including:
  • the terminal receives result indication information, where the result indication information is used to indicate the result of the impact of the terminal position on the signal quality;
  • the terminal determines, at least based on the result indication information, a target distribution unit of a target base station or a serving base station to be accessed when performing cell switching.
  • the terminal can determine the target base station to be accessed or the target distribution unit of the serving base station when performing cell switching based on at least the received result indication information, thereby improving the reliability of the terminal in performing cell switching, achieving coverage enhancement of uplink and downlink signal quality, and improving the availability of NTN communication.
  • the result indication information is used to instruct the second network device to adjust beam parameters based on the terminal position to determine the impact result on the signal quality.
  • the beam parameter includes at least one of the following:
  • the pointing parameter of the beam includes at least one of the following: a beam width parameter; a pointing parameter of the beam center point position;
  • the shape parameters of the beam are the shape parameters of the beam.
  • the signal includes at least one of the following:
  • a downlink signal from the second network device received by the terminal receives
  • the result indication information is used to indicate any of the following:
  • the terminal position will not affect the signal quality
  • the terminal position may affect the signal quality
  • the terminal position will improve the signal quality
  • the end position can reduce the signal quality.
  • the method further includes any of the following:
  • the terminal reports the terminal location information to the source base station;
  • the terminal reports the terminal location information to the source distribution unit of the serving base station, so that the source distribution unit forwards the terminal location information to the central unit of the serving base station.
  • the second network device is a candidate base station
  • the second network device is a candidate distribution unit of the serving base station.
  • an embodiment of the present disclosure provides a first network device, including:
  • the transceiver module is configured to send the terminal location information from the first network device to the second network device, where the terminal location information is used for the terminal to perform cell switching.
  • an embodiment of the present disclosure provides a second network device, including:
  • the transceiver module is configured to receive the terminal location information sent by the first network device as the second network device, and the terminal location information is used for the terminal to perform cell switching.
  • an embodiment of the present disclosure provides a terminal, including:
  • a transceiver module configured to receive result indication information of a terminal, wherein the result indication information is used to indicate the result of the influence of the terminal position on the signal quality;
  • the processing module is configured to determine, at least based on the result indication information, a target distribution unit of a target base station or a serving base station to be accessed when performing cell switching.
  • an embodiment of the present disclosure provides a network device, including:
  • processors one or more processors
  • the network device is used to execute the information transmission method described in any one of the first aspect or the second aspect.
  • an embodiment of the present disclosure provides a terminal, including:
  • processors one or more processors
  • the terminal is used to execute the method for information transmission described in any one of the third aspects.
  • an embodiment of the present disclosure proposes a communication system, comprising a first network device, a second network device, and a terminal, wherein the first network device is configured to implement the information transmission method described in any one of the first aspect, the second network device is configured to implement the information transmission method described in any one of the second aspect, and the terminal is configured to implement the information transmission method described in any one of the third aspect.
  • an embodiment of the present disclosure proposes a storage medium, which stores instructions.
  • the instructions When the instructions are executed on a communication device, the communication device executes an information transmission method as described in any one of the first aspect, the second aspect or the third aspect.
  • the embodiments of the present disclosure provide information transmission methods, devices, and storage media.
  • the terms information transmission method, information processing method, communication method, etc. can be interchangeable
  • the terms information transmission device, information processing device, communication device, etc. can be interchangeable
  • the terms information processing system, communication system, etc. can be interchangeable.
  • each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
  • 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.
  • 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 of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
  • 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.
  • the noun after the article may be understood as a singular expression or a plural expression.
  • plurality refers to two or more.
  • the terms "at least one of”, “one or more”, “a plurality of”, “multiple”, etc. can be used interchangeably.
  • "at least one of A and B", “A and/or B", “A in one case, B in another case”, “in response to one case A, in response to another case B”, etc. may include the following technical solutions according to the situation: in some embodiments, A (execute A independently of B); in some embodiments, B (execute B independently of A); in some embodiments, select execution from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., it is similar to the above.
  • the recording method of "A or B” may include the following technical solutions according to 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).
  • A A is executed independently of B
  • B B is executed independently of A
  • execution is selected from A and B (A and B are selectively executed).
  • 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 restrictions on the position, order, priority, quantity or content of the description objects.
  • the statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes.
  • the description object is a "field”
  • the ordinal number before the "field” in the "first field” and the "second field” does not limit the position or order between the "fields”
  • the "first” and “second” do not limit whether the "fields” they modify are in the same message, nor do they limit the order of the "first field” and the "second field”.
  • the description object is a "level”
  • the ordinal number before the "level” in the “first level” and the “second level” does not limit the priority between the "levels”.
  • the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device” as an example, the number of "devices” can be one or more.
  • the objects modified by different prefixes may be the same or different. For example, if the description object is "device”, then the “first device” and the “second device” may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information”, then the "first information” and the “second information” may be the same information or different information, and their contents may be the same or different.
  • “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
  • devices and equipment may be interpreted as physical or virtual, and their names are not limited to the names described in the embodiments. In some cases, they may also be understood as “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “entity”, “subject”, etc.
  • network can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.
  • the "access network device (AN device)” may also be referred to as a “radio access network device (RAN device)", a “base station (BS)", a “radio base station (radio base station)", a “fixed station”, and in some embodiments may also be understood as a “node”, “access point”, “transmission point (TP)”, “reception point (RP)”, “transmission and/or 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” and so on. part, BWP)” etc.
  • RAN device radio access network device
  • BS base station
  • RP reception point
  • TRP transmission and/or reception point
  • terminal or “terminal device” may be referred to as "user equipment (UE)", “user terminal (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.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
  • data, information, etc. may be obtained with the user's consent.
  • each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.
  • FIG. 1A and FIG. 1B are schematic diagrams of the architecture of a communication system according to an embodiment of the present disclosure.
  • a communication system 100 - 1 includes a terminal 101 , a first network device 102 - 1 , and a second network device 103 - 1 .
  • the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), 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 is not limited to these.
  • a mobile phone a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), 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
  • the first network device 102-1 or the second network device 103-1 includes an access network device, such as a node or device that accesses a terminal to a wireless network.
  • the access network device may include an evolved Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (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.
  • eNB evolved Node B
  • ng-eNB next generation evolved Node B
  • the technical solution of the present disclosure may be applicable to the Open RAN architecture.
  • the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.
  • the first network device 102-1 may be a source base station of the terminal 101
  • the second network device 103-1 may be a candidate base station when the terminal 101 is switched.
  • the candidate base station refers to a base station that the terminal determines can be switched to when performing a cell handover.
  • the communication system 100 - 2 includes a terminal 101 , a first network device 102 - 2 , and a second network device 103 - 2 .
  • the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), 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 is not limited to these.
  • a mobile phone a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), 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
  • the first network device 102-2 may be a centralized unit (CU) of the terminal 101
  • the second network device 103-2 may be a candidate distributed unit when the terminal 101 is switched.
  • the candidate distributed unit, the centralized unit, and the source distributed unit of the terminal 101 belong to the same serving base station of the terminal 101, and the candidate distributed unit refers to a distributed unit in the serving base station that the terminal can switch to when performing cell handover.
  • the CU-DU structure can split the protocol layer of the access network device, with some functions of the protocol layer centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer distributed in the DU, which is centrally controlled by the CU, but not limited to this.
  • the communication system 100-1 or 100-2 further includes a core network device (not shown in FIG. 1A and FIG. 1B ), which may be one device, or multiple devices or a group of devices.
  • 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 (5G Core Network, 5GCN), and a Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5G Core Network 5G Core Network
  • NGC Next Generation Core
  • 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.
  • a person of ordinary skill in the art 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.
  • the following embodiments of the present disclosure may be applied to the communication system 100-1 shown in FIG. 1A or the communication system 100-2 shown in FIG. 1B, or part of the subject, but are not limited thereto.
  • the subjects shown in FIG. 1A or FIG. 1B are examples, and the communication system may include all or part of the subjects in FIG. 1A or FIG. 1B, or may include other subjects other than FIG. 1A or FIG. 1B, and the number and form of each subject are arbitrary, and each subject may be physical or virtual, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, and may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.
  • 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, the fourth generation mobile communication system (4G), the fifth generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio (NR), and New Radio Access (N
  • the present invention relates to the following technologies: wireless communication methods, such as LTE 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 Wide Band (UWB), Bluetooth (registered trademark)), Public Land Mobile Network, PLMN network, systems using other communication methods, and next generation systems expanded therefrom.
  • NTN scenarios include scenarios based on geostationary Earth Orbiting (GEO) satellites and scenarios based on non-geostationary Earth Orbiting (NGSO) satellites.
  • GEO geostationary Earth Orbiting
  • NGSO non-geostationary Earth Orbiting
  • the transparent architecture means that the satellite has the function of transparent forwarding, that is, the communication between the base station and the user is forwarded through the satellite. It is generally assumed that the NTN gateway and the base station are very close and can be roughly considered to be in the same location.
  • the regenerative architecture means that part of the base station (DU) is on the satellite or the entire structure of the base station is on the satellite, and the satellite has the ability to process data. However, due to the high orbital altitude of the satellite, the path loss between the terminal and the base station is large.
  • Uplink channels such as Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), especially PUSCH used for Voice over Internet Protocol (Voice over Internet Protocol, VoIP) and PUCCH used for Message 4 Hybrid Automatic Repeat request-ACKnowledgement (Msg4HARQ-ACK).
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • VoIP Voice over Internet Protocol
  • Msg4HARQ-ACK Message 4 Hybrid Automatic Repeat request-ACKnowledgement
  • the regenerative satellite architecture For the regenerative satellite architecture, it can be divided into two types: all functions of the base station are on the satellite and the functions of the DU are on the satellite (CU and DU are separated).
  • the embodiments of the present disclosure provide a switching process across base stations (inter-gNB) and a switching process across distributed units (inter-DU).
  • the cell switching across distributed units can also be called the cell switching within the base station (intra-gNB).
  • the inter-gNB Conditional Handover (CHO) process includes the following steps:
  • Step S1400 the terminal context in the source base station contains information about roaming and access restrictions, which is provided by the core network equipment, such as the Authentication Management Function (AMF), when the connection is established or the last Tracking Area (TA) is updated.
  • AMF Authentication Management Function
  • TA Tracking Area
  • Step S1401 The source base station configures the terminal measurement process, and the terminal reports according to the measurement configuration.
  • Step S1402 The source base station determines, based on the measurement report (MeasurementReport) reported by the terminal, that the terminal needs to perform cell switching.
  • Step S1403 The source base station sends a handover request message to one or more candidate base stations.
  • Step S1404 admission control may be performed by the candidate base station.
  • slice-aware admission control should be performed. If a Protocol Data Unit (PDU) session is associated with an unsupported slice, the candidate base station should reject such a PDU session.
  • PDU Protocol Data Unit
  • Step S1405 The candidate base station sends a handover response message including the candidate cell configuration to the source base station.
  • Step S1406 The source base station sends an RRCReconfiguration message to the terminal.
  • the RRCReconfiguration message may include the configuration of the candidate cell and the conditional switching execution condition.
  • the configuration of the candidate cell may be reconfigured along with other information of the source base station.
  • Step S1407 The terminal sends an RRCReconfigurationComplete message to the source base station.
  • Step S1407-a if early data forwarding is applied, the source base station can send an early status transmission (EARLY STATUS TRANSFER) message to the candidate base station.
  • EARLY STATUS TRANSFER early status transmission
  • Step S1408-a the target base station sends a HANDOVER SUCCESS message to the source base station, notifying the source base station that the terminal has successfully accessed the target base station.
  • Step S1408-b in return, the source base station sends a sequence number status transmission (Sequence Number STATUS TRANSFER, SN STATUS TRANSFER) message to the target base station.
  • Step S1408-c the source base station sends a HANDOVER CANCEL message to other candidate base stations (if there are other candidate base stations) to cancel the CHO of the terminal.
  • the inter-DU CHO process includes the following steps:
  • Step S1501 The terminal sends a measurement report to the source distribution unit.
  • Step S1502 the source distribution unit sends an uplink radio resource control message transmission (UL RRC MESSAGE TRANSFER) message to the centralized unit to convey the received MeasurementReport.
  • UL RRC MESSAGE TRANSFER uplink radio resource control message transmission
  • Step S1503 the centralized unit sends a UE CONTEXT SETUP REQUEST message to the candidate distributed units.
  • This message is used to create a terminal context and set up one or more data bearers.
  • the UE CONTEXT SETUP REQUEST message sends conditional mobility information across DUs for each candidate distribution unit, and includes handover preparation information (HandoverPreparationInformation) for conditional handover or semi-static configuration information for changing conditional primary and secondary cells.
  • handover preparation information HandoverPreparationInformation
  • the UE CONTEXT SETUP RESPONSE message includes the target cell identifier requested from the central unit.
  • Step S1505 the centralized unit sends a downlink radio resource control message transmission (DL RRC MESSAGE TRANSFER) message to the source distributed unit.
  • DL RRC MESSAGE TRANSFER downlink radio resource control message transmission
  • the message includes the generated RRCReconfiguration message.
  • Step S1506 The source distribution unit forwards the received RRCReconfiguration message to the terminal.
  • Step S1507 the terminal responds to the source distribution unit with an RRCReconfigurationComplete message.
  • Step S1508 the source distribution unit forwards the RRCReconfigurationComplete message to the centralized unit via a UL RRC MESSAGE TRANSFER message.
  • Step S1509 the execution condition of the trigger condition switching or CHO is met.
  • Step S1510 A random access process is performed between the terminal and the target distribution unit.
  • Step S1511 the terminal sends an RRCReconfigurationComplete message to the target distributed unit.
  • Step S1512 the target distributed unit sends a UL RRC MESSAGE TRANSFER message to the centralized unit.
  • This message includes the RRCReconfigurationComplete message.
  • the source distribution unit also sends a downlink data transmission status frame to notify the centralized unit that the downlink data has not been successfully transmitted to the terminal.
  • Step S1514 the source distribution unit responds to the centralized unit with a terminal context update response (UE CONTEXT MODIFICATION RESPONSE) message.
  • UE CONTEXT MODIFICATION RESPONSE terminal context update response
  • Step S1515 the centralized unit sends a terminal context release command (UE CONTEXT RELEASE COMMAND) message to the source distribution unit.
  • UE CONTEXT RELEASE COMMAND a terminal context release command
  • the satellite's reception quality of the UL signal can be changed.
  • the satellite can change the parameters of the satellite beam through an algorithm to enhance the reception strength of the UL signal of the service users within the coverage area.
  • the candidate base station or candidate distribution unit When performing cell switching, the candidate base station or candidate distribution unit does not know the location of the terminal to be connected, and cannot ensure the reliability of the target base station or target distribution unit to be accessed by the terminal. It is also impossible to determine the signal quality of the target base station or target distribution unit to be accessed by the terminal, and cannot achieve uplink and downlink signal quality coverage enhancement.
  • FIG2A is an interactive schematic diagram of an information transmission method according to an embodiment of the present disclosure.
  • the embodiment of the present disclosure relates to an information transmission method, which is applicable to an inter-gNB cell switching scenario, and the method includes:
  • Step S2101 the terminal 101 reports the terminal location information to the first network device 102-1.
  • the first network device 102-1 receives the terminal location information.
  • the first network device 102-1 is a source base station of the terminal 101.
  • the source base station is a serving base station before the terminal 101 performs a cell handover.
  • the name of the terminal location information is not limited, and it can be, for example, a location message, a first message, a first signaling, etc.
  • the terminal location information is used by the terminal 101 to perform cell switching.
  • the terminal location information is information related to the location of the terminal 101.
  • the terminal location information includes but is not limited to at least one of the following: at least one of the longitude information and latitude information of the terminal 101; the Global Navigation Satellite System (GNSS) information of the terminal 101; and the identification information of the cell where the terminal 101 is located.
  • the cell identification may be a physical cell identifier (PCI) and the like.
  • the terminal 101 may periodically report the terminal location information to the first network device 102 - 1 .
  • the terminal 101 may report the terminal location information to the first network device 102 - 1 based on the network side instruction.
  • the terminal 101 may report the terminal location information to the first network device 102 - 1 when the signal quality of the serving cell decreases.
  • the terminal 101 may report a measurement report to the first network device 102 - 1 , including the terminal location information.
  • Step S2102 The first network device 102-1 sends the terminal location information to the second network device 103-1.
  • the second network device 103 - 1 may be a candidate base station when the terminal 101 switches.
  • the number of the second network device 103 - 1 may be one or more, which is not limited in the present disclosure.
  • the first network device 102-1 may send the terminal location information to the second network device 103-1 through the network interface between the first network device 102-1 and the second network device 103-1.
  • the network interface includes but is not limited to an X2 interface or an Xn interface.
  • the first network device 102-1 may send the terminal location information to the core network device, and the core network device forwards the terminal location information to the second network device 103-1.
  • the first network device 102-1 sends a handover request (HANDOVER REQUEST) message to the second network device 103-1.
  • the handover request message is used to request to perform a cell handover, and the handover request message may include terminal location information.
  • the terminal location information is provided to the second network device 103-1 through the handover request message, so that the second network device 103-1 determines the terminal location information for the terminal to perform cell handover.
  • Step S2103 The second network device 103-1 adjusts beam parameters based on the terminal position.
  • the names of the beam parameters are not limited.
  • the beam parameters include but are not limited to at least one of the following: a pointing parameter of the beam; a shape parameter of the beam.
  • a pointing parameter of a beam may be used to characterize the direction of the beam.
  • the pointing parameter of the beam includes but is not limited to at least one of the following: a beam width parameter; a pointing parameter of the beam center point position.
  • the beam width parameter can be used to characterize the beam bandwidth, wherein the beam bandwidth can be a narrow bandwidth or a wide bandwidth. It should be noted that the narrow bandwidth or the wide bandwidth here are relative concepts, and the present disclosure does not limit the specific bandwidth.
  • the pointing parameter of the beam center point position may be used to characterize the direction of the beam center point.
  • the shape parameters of the beam may be used to characterize the beamforming result.
  • the shape parameters of the beam may include, but are not limited to, the antenna or antenna array used when transmitting the beam, the amplitude of the beam, the phase of the beam, etc.
  • the second network device 103 - 1 may adjust the pointing parameters of the beam based on the terminal location so that the beam direction is better aligned with the terminal location.
  • the second network device 103 - 1 may adjust a beam width parameter based on the terminal position, for example, adjusting the beam width to a wide bandwidth or a narrow bandwidth.
  • the second network device 103 - 1 may adjust the directional parameters of the beam center point position based on the terminal position, so that the direction pointed by the directional parameters of the beam center point position is aligned with the terminal position.
  • the second network device 103 - 1 may adjust the shape parameters of the beam based on the terminal position to perform more accurate and reliable beamforming for the terminal 101 .
  • the second network device 103 - 1 may adjust the pointing parameters of the beam and the shape parameters of the beam based on the terminal position.
  • the specific adjustment method is similar to the above process and will not be repeated here.
  • a solution in which the second network device 103 - 1 adjusts other beam parameters based on the terminal position should also fall within the protection scope of the present disclosure.
  • Step S2104 The second network device 103-1 sends result indication information to the first network device 102-1.
  • the first network device 102 - 1 receives result indication information.
  • the name of the result indication information is not limited, and it can be, for example, an indication message, indication information, a first message, a first signaling, etc.
  • the result indication information is used to indicate the result of the impact of the terminal location on the signal quality.
  • the result indication information is used to indicate, but is not limited to, any of the following: the terminal position will not affect the signal quality; the terminal position will affect the signal quality; the terminal position will improve the signal quality; the terminal position will reduce the signal quality.
  • the result indication information is used to indicate that the terminal position will not affect the signal quality. For example, whether the second network device 103-1 adjusts the beam parameters based on the terminal position will not affect the uplink signal quality and/or will not affect the downlink signal quality.
  • the result indication information is used to indicate that the terminal position will affect the signal quality.
  • the second network device 103-1 adjusts the beam parameters based on the terminal position, which will affect the uplink signal quality and/or the downlink signal quality.
  • the result indication information is used to indicate that the terminal position will reduce the signal quality.
  • the second network device 103-1 adjusts the beam parameters based on the terminal position, the uplink signal quality and/or the downlink signal quality will be reduced.
  • the result indication information is used to indicate that the terminal location will not affect the signal quality, will affect the signal quality, will improve the signal quality, will reduce the signal quality, one, two or more.
  • the second network device 103 - 1 adjusts the beam parameters based on the terminal position will not affect the uplink signal quality, but if the beam parameters are adjusted, the downlink signal quality will be affected.
  • the second network device 103 - 1 adjusts the beam parameters based on the terminal position will not affect the uplink signal quality, but if the beam parameters are adjusted, the downlink signal quality will be affected and the downlink signal quality will be reduced.
  • the second network device 103 - 1 may estimate the change value of the signal quality before and after adjusting the beam parameters based on its own implementation, and accordingly, the result indication information may include the change value.
  • the positive or negative sign of the change value can be used to represent an improvement or reduction in signal quality
  • the absolute value of the change value is used to represent the amount of change in signal quality
  • the change value may be in decibel milliwatts (dbm).
  • the second network device 103 - 1 estimates that the signal quality is improved after adjusting the beam parameters, and the improvement is expected to be 10 dBm, then the result indication information can be used to indicate +10.
  • the second network device 103 - 1 estimates that the signal quality is reduced after adjusting the beam parameters, and is expected to increase by 5 dBm, then the result indication information may be used to indicate -5.
  • the second network device 103-1 sends the result indication information to the first network device 102-1 via an inter-network interface.
  • the inter-network interface includes but is not limited to an X2 interface, an Xn interface, and the like.
  • the second network device 103 - 1 sends result indication information to the core network device, and the core network device forwards the result indication information to the first network device 102 - 1 .
  • the first network device 102-1 sends a handover request message to the second network device 103-1, including the terminal location information. Accordingly, the second network device 103-1 may send a handover response message to the first network device 102-1. (HANDOVER REQUEST ACKNOWLEDGE) message, and the handover response message includes the result indication information.
  • HANDOVER REQUEST ACKNOWLEDGE HANDOVER REQUEST ACKNOWLEDGE
  • bit value of the information element (Information Element, IE) where the result indication information is located is set to a first value, it is used to indicate that the terminal position will not affect the signal quality; when it is set to a second value, it is used to indicate that the terminal position will affect the signal quality.
  • the first value may be “0” and the second value may be “1".
  • the first value may be “1” and the second value may be “0".
  • bit value of the IE where the result indication information is located when the bit value of the IE where the result indication information is located is set to a third value, it is used to indicate that the terminal position will improve the signal quality; when it is set to a fourth value, it is used to indicate that the terminal position will reduce the signal quality.
  • the third value can be "0" and the fourth value can be "1".
  • the third value can be "1" and the fourth value can be "0".
  • the IE where the result indication information is located includes at least two bits, which are used to indicate whether the terminal position will affect the signal quality and whether the terminal position will improve or reduce the signal quality.
  • bit value of the IE is “01” or "00", which is used to indicate that the terminal position will not affect the signal quality.
  • bit value of the IE is "11", which indicates that the terminal position affects the signal quality and the terminal position improves the signal quality.
  • bit value of the IE is "10”, which indicates that the terminal position affects the signal quality and the terminal position reduces the signal quality.
  • the IE where the result indication information is located includes at least two bits, which are used to indicate whether the terminal position will affect the uplink signal quality and whether it will affect the downlink signal quality.
  • bit value of the IE is "01", which is used to indicate that the terminal position will not affect the uplink signal quality, but will affect the downlink signal quality.
  • bit value of the IE is "00", which is used to indicate that the terminal position will not affect the uplink signal quality and will not affect the downlink signal quality.
  • the IE where the result indication information is located includes at least four bits, which are used to indicate whether the terminal position affects the uplink signal quality, will improve or reduce the uplink signal quality, whether it affects the downlink signal quality, will improve or reduce the downlink signal quality.
  • bit value of the IE is "0101", which is used to indicate that the terminal position will not affect the uplink signal quality, and the terminal position will not affect the downlink signal quality.
  • bit value of the IE is "1110", which indicates that the terminal position will affect the uplink signal quality, the terminal position will improve the uplink signal quality, the terminal position will affect the downlink signal quality, and the terminal position will reduce the downlink signal quality.
  • the handover response message includes an IE where the result indication information is located, it is used to indicate that the terminal location will affect the signal quality. If the IE is not included, it is used to indicate that the terminal location will not affect the signal quality.
  • Step S2105 The first network device 102-1 determines, based at least on the result indication information, a target base station to be accessed by the terminal 101 when performing cell switching.
  • the target base station is one of the candidate base stations, ie, the second network device 103 - 1 , and the target base station is a base station to be accessed when the terminal performs cell switching.
  • the first network device 102 - 1 determines a target base station based on the result indication information.
  • the first network device 102-1 uses the result indication information to indicate that a second network device 103-1, whose terminal position will not affect the signal quality, is determined as a target base station.
  • the first network device 102-1 uses the result indication information to indicate that a second network device 103-1 whose terminal position may affect signal quality is determined as a target base station.
  • the first network device 102-1 uses the result indication information to indicate that a second network device 103-1 whose terminal position will improve signal quality is determined as a target base station.
  • the first network device 102-1 uses the result indication information to indicate that the terminal position will affect the signal quality and a second network device 103-1 that will improve the signal quality is determined as the target base station.
  • the first network device 102-1 uses the result indication information to indicate that the terminal position will affect the uplink signal quality (eg, will improve or reduce the uplink signal quality) and determines a second network device 103-1 that will improve the downlink signal quality as the target base station.
  • the result indication information indicates that the terminal position will affect the uplink signal quality (eg, will improve or reduce the uplink signal quality) and determines a second network device 103-1 that will improve the downlink signal quality as the target base station.
  • the first network device 102-1 uses the result indication information to indicate that a second network device 103-1 whose terminal position will not affect the uplink signal quality but will improve the downlink signal quality is determined as a target base station.
  • the first network device 102-1 determines a second network device 103-1 capable of achieving downlink coverage enhancement as a target base station.
  • the first network device 102-1 uses the result indication information to indicate the terminal position, which will improve the uplink signal quality and A second network device 103 - 1 that affects the downlink signal quality (eg, improves or reduces the downlink signal quality) is determined as the target base station.
  • the first network device 102-1 uses the result indication information to indicate that a second network device 103-1 whose terminal position will improve uplink signal quality and will not affect downlink signal quality is determined as a target base station.
  • the first network device 102-1 determines a second network device 103-1 capable of achieving uplink coverage enhancement as a target base station.
  • the first network device 102-1 uses the result indication information to indicate that the terminal position will improve the uplink signal quality and will improve the downlink signal quality, and determines a second network device 103-1 as the target base station.
  • the first network device 102-1 determines a second network device 103-1 that can achieve uplink coverage enhancement and downlink coverage enhancement as a target base station.
  • other information includes but is not limited to a measurement report reported by the terminal.
  • the first network device 102-1 determines the target base station based on the measurement report and the result indication information.
  • the first network device 102-1 first determines the second network device 103-1 whose terminal position will improve the signal quality based on the result indication information, and then selects a second network device 103-1 with the best signal quality among the second network devices 103-1 as the target base station.
  • the first network device 102-1 first screens out the second network devices 103-1 whose signal quality is higher than a preset threshold, and then selects a second network device 103-1 among the second network devices 103-1 whose terminal position will improve the signal quality as the target base station.
  • the first network device 102 - 1 may control the terminal 101 to switch to the target base station.
  • Step S2106 The first network device 102 - 1 sends result indication information to the terminal 101 .
  • terminal 101 receives the result indication information.
  • the first network device 102 - 1 sends the result indication information and the identifier of the second network device 103 - 1 corresponding to each result indication information to the terminal 101 .
  • the first network device 102-1 may send result indication information to the terminal 101 via a radio resource control (RRC) message.
  • RRC radio resource control
  • the first network device 102 - 1 may send a radio resource control reconfiguration (RRCReconfiguration) message to the terminal 101 , which includes result indication information.
  • RRCReconfiguration radio resource control reconfiguration
  • the terminal 101 may send a radio resource control reconfiguration complete (RRCReconfigurationComplete) message to the first network device 102-1 to inform the first network device 102-1 that the terminal 101 has synchronously updated the RRC related configuration.
  • RRCReconfigurationComplete radio resource control reconfiguration complete
  • the indication method of the result indication information is similar to the indication method in step S2104, which will not be repeated here.
  • the RRCReconfiguration message includes the IE where the result indication information is located, which is used to indicate that there is an impact on the signal quality, and is used to indicate that there is no impact on the signal quality.
  • Step S2107 The terminal 101 determines a target base station to be accessed when performing cell switching based at least on the result indication information.
  • the terminal 101 may determine the target base station based on the result indication information.
  • terminal 101 may determine a target base station based on the result indication information and other conditions for performing conditional switching.
  • the scheme in which the terminal 101 determines the target base station based at least on the result indication information is similar to the scheme in which the first network device 102 - 1 determines the target base station, and will not be described in detail here.
  • the terminal 101 after the terminal 101 determines the target base station, it can access the target base station, and can disconnect from the first network device 102-1 before or after accessing the target base station.
  • the names of information, etc. are not limited to the names recorded in the embodiments, and terms such as “information”, “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “domain”, “field”, “symbol”, “symbol”, “code element”, “codebook”, “codeword”, “codepoint”, “bit”, “data”, “program”, and “chip” can be used interchangeably.
  • uplink uplink
  • uplink uplink
  • physical uplink etc.
  • obtain can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from high levels, obtaining by self-processing, autonomous implementation, etc.
  • terms such as “certain”, “preset”, “preset”, “set”, “indicated”, “some”, “any”, and “first” can be interchangeable, and "specific A”, “preset A”, “preset A”, “set A”, “indicated A”, “some A”, “any A”, and “first A” can be interpreted as A pre-defined in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., and can also be interpreted as specific A, some A, any A, or first A, etc., but is not limited to this.
  • the information transmission method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2107.
  • step S2101 may be implemented as an independent embodiment
  • step S2102 may be implemented as an independent embodiment
  • step S2102+S2103 may be implemented as an independent embodiment
  • steps S2101 to S2103 may be implemented as independent embodiments
  • step S2104 may be implemented as an independent embodiment
  • step S2105 may be implemented as an independent embodiment
  • step S2106+step S2107 may be implemented as an independent embodiment
  • step S2104+step S2105 may be implemented as an independent embodiment
  • step S2104+step S2105 may be implemented as an independent embodiment
  • step S2104+step S2106+step S2107 may be implemented as an independent embodiment
  • step S2104+step S2106+step S2107 may be implemented as an independent embodiment, but are not limited thereto.
  • step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • steps S2104 to S2107 are optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • step S2105, step S2106+step S2107 may be performed selectively, for example, step S2105 corresponds to the source base station controlling the terminal to perform cell switching, and step S2106+step S2107 corresponds to CHO on the terminal side.
  • step S2105 may be performed, and step S2106+step S2107 may not be performed, at which time the first network device 102-1 may determine the target base station to be accessed for the terminal 101 during the cell switching.
  • step S2106+step S2107 may be performed without performing step S2105, and the terminal 101 itself determines the target base station to be accessed during cell switching.
  • an existing CHO switching condition event may be a reference signal receiving power (RSRP).
  • the terminal 101 calculates a new RSRP for each cell based on the change value indicated in the result indication information and the RSRP of the cell in the measurement report, and determines to execute CHO based on the new RSRP.
  • RSRP reference signal receiving power
  • the present disclosure does not limit the method of calculating the new RSRP.
  • the average value of RSRP and the change value can be calculated, or different weights can be assigned to RSRP and the change value according to business needs, and then the weighted average value is calculated, or other methods can be used to calculate the new RSRP.
  • the source base station can send the terminal location information to the candidate base station, the candidate base station can adjust the beam parameters based on the terminal location, and provide the result indication information to the source base station, the result indication information is used to indicate the result of the impact of the terminal location on the signal quality, and then the source base station or the terminal determines the target base station to be accessed when the terminal performs cell switching based on at least the result indication information, thereby improving the reliability of the terminal when performing cell switching and improving the availability of NTN communication.
  • FIG2B is an interactive schematic diagram of an information transmission method according to an embodiment of the present disclosure.
  • the embodiment of the present disclosure relates to an information transmission method, which is applicable to a cell switching scenario across distributed units (inter-DU) or within a base station (intra-gNB), and the method includes:
  • Step S2201 Terminal 101 reports terminal location information to a source distribution unit of a serving base station.
  • the source distribution unit receives the terminal location information.
  • the source distribution unit is a distribution unit of the serving base station accessed by the terminal before performing cell switching.
  • the name of the terminal location information is not limited, and it can be, for example, a location message, a first message, a first signaling, etc.
  • the terminal location information is used by the terminal 101 to perform cell switching.
  • the terminal location information includes but is not limited to at least one of the following: at least one of the longitude information and latitude information of the terminal 101; GNSS information of the terminal 101; and identification information of the cell where the terminal 101 is located.
  • the cell identification may be PCI or the like.
  • the terminal 101 may report the terminal location information to the source distribution unit based on the network side instruction.
  • the terminal 101 may report a measurement report including the terminal location information to the source distribution unit.
  • Step S2202 The source distribution unit sends the terminal location information to the first network device 102-2.
  • the first network device 102-2 receives terminal location information.
  • the first network device 102 - 2 is a centralized unit of a serving base station of the terminal 101 .
  • the source distribution unit may send a measurement report including the terminal location information to the first network device 102 - 2 .
  • Step S2203 The first network device 102-2 sends the terminal location information to the second network device 103-2.
  • the second network device 103 - 2 receives terminal location information.
  • the second network device 103 - 2 may be a candidate distribution unit of a serving base station when the terminal 101 switches.
  • the number of the second network devices 103 - 2 may be one or more, which is not limited in the present disclosure.
  • the first network device 102-2 sends an F1 Application Protocol (F1AP) message to the second network device 103-2, which includes terminal location information.
  • F1AP F1 Application Protocol
  • the first network device 102-2 sends a terminal context setup request (UE context setup request) message to the second network device 103-2, and the terminal context setup request message may include terminal location information.
  • UE context setup request UE context setup request
  • Step S2204 The second network device 103-2 adjusts beam parameters based on the terminal position.
  • the names of the beam parameters are not limited.
  • the beam parameters include but are not limited to at least one of the following: a pointing parameter of the beam; a shape parameter of the beam.
  • a pointing parameter of a beam may be used to characterize the direction of the beam.
  • the pointing parameter of the beam includes but is not limited to at least one of the following: a beam width parameter; a pointing parameter of the beam center point position.
  • the beam width parameter can be used to characterize the beam bandwidth, wherein the beam bandwidth can be a narrow bandwidth or a wide bandwidth. It should be noted that the narrow bandwidth or the wide bandwidth here are relative concepts, and the present disclosure does not limit the specific bandwidth.
  • the pointing parameter of the beam center point position may be used to characterize the direction of the beam center point.
  • the shape parameters of the beam may be used to characterize the beamforming result.
  • the shape parameters of the beam may include, but are not limited to, the antenna or antenna array used when transmitting the beam, the amplitude of the beam, the phase of the beam, etc.
  • the second network device 103 - 2 may adjust the pointing parameters of the beam based on the terminal location so that the beam direction is better aligned with the terminal location.
  • the second network device 103 - 2 may adjust the directional parameters of the beam center point position based on the terminal position, so that the direction pointed by the directional parameters of the beam center point position is aligned with the terminal position.
  • the second network device 103 - 2 may adjust the shape parameters of the beam based on the terminal position to perform more accurate and reliable beamforming for the terminal 101 .
  • the second network device 103 - 2 may adjust the pointing parameters of the beam and the shape parameters of the beam based on the terminal position.
  • the specific adjustment method is similar to the above process and will not be repeated here.
  • a solution in which the second network device 103 - 2 adjusts other beam parameters based on the terminal position should also fall within the protection scope of the present disclosure.
  • Step S2205 The second network device 103-2 sends result indication information to the first network device 102-2.
  • the first network device 102 - 2 receives result indication information.
  • the name of the result indication information is not limited, and it can be, for example, an indication message, indication information, a first message, a first signaling, etc.
  • the result indication information is used to indicate the result of the impact of the terminal location on the signal quality.
  • the result indication information is used to instruct the second network device 103-2 to adjust the wave based on the terminal position. beam parameters to determine the resulting impact on signal quality.
  • the above-mentioned signal includes but is not limited to at least one of the following: an uplink signal from the terminal 101 received by the second network device 103 - 2 ; a downlink signal from the second network device 103 - 2 received by the terminal 101 .
  • the result indication information is used for but not limited to indicating any of the following: the terminal position will not affect the signal quality; the terminal position will affect the signal quality; the terminal position will improve the signal quality; the terminal position will reduce the signal quality.
  • the result indication information is used to indicate that the terminal position will not affect the signal quality. For example, whether the second network device 103-2 adjusts the beam parameters based on the terminal position will not affect the uplink signal quality and/or will not affect the downlink signal quality.
  • the result indication information is used to indicate that the terminal position will affect the signal quality. For example, if the second network device 103-2 adjusts the beam parameters based on the terminal position, it will affect the uplink signal quality and/or the downlink signal quality.
  • the result indication information is used to indicate that the terminal position will improve the signal quality, for example, the second network device 103-2 will improve the uplink signal quality and/or the downlink signal quality after adjusting the beam parameters based on the terminal position.
  • the result indication information is used to indicate that the terminal position will reduce the signal quality.
  • the second network device 103-2 adjusts the beam parameters based on the terminal position, the uplink signal quality and/or the downlink signal quality will be reduced.
  • the result indication information is used to indicate that the terminal location will not affect the signal quality, will affect the signal quality, will improve the signal quality, will reduce the signal quality, one, two or more.
  • the second network device 103 - 2 adjusts the beam parameters based on the terminal position will not affect the uplink signal quality, but if the beam parameters are adjusted, the downlink signal quality will be affected.
  • the second network device 103 - 2 adjusts the beam parameters based on the terminal position will not affect the uplink signal quality, but if the beam parameters are adjusted, the downlink signal quality will be affected and the downlink signal quality will be reduced.
  • the second network device 103 - 2 may estimate the change value of the signal quality before and after adjusting the beam parameters based on its own implementation, and the result indication information includes the change value.
  • the positive or negative sign of the change value can be used to represent an improvement or reduction in signal quality
  • the absolute value of the change value is used to represent the amount of change in signal quality
  • the first network device 102-2 sends an F1AP message including the terminal location information to the second network device 103-2. Accordingly, the second network device 103-2 may send an F1AP message including the result indication information to the first network device 102-2.
  • the first network device 102-2 sends a terminal context establishment request message to the second network device 103-2, which includes the terminal location information. Accordingly, the second network device 103-2 can send a terminal context establishment response (UE context setup response) message to the first network device 102-2, which includes the result indication information.
  • UE context setup response UE context setup response
  • bit value of the IE where the result indication information is located when the bit value of the IE where the result indication information is located is set to a first value, it is used to indicate that the terminal position will not affect the signal quality; when it is set to a second value, it is used to indicate that the terminal position will affect the signal quality.
  • the first value may be “0” and the second value may be “1".
  • the first value may be “1” and the second value may be “0".
  • bit value of the IE where the result indication information is located when the bit value of the IE where the result indication information is located is set to a third value, it is used to indicate that the terminal position will improve the signal quality; when it is set to a fourth value, it is used to indicate that the terminal position will reduce the signal quality.
  • the third value can be "0" and the fourth value can be "1".
  • the third value can be "1" and the fourth value can be "0".
  • the IE where the result indication information is located includes at least two bits, which are used to indicate whether the terminal position will affect the signal quality, improve or reduce the signal quality.
  • bit value of the IE is “01” or "00", which is used to indicate that the terminal position will not affect the signal quality.
  • the IE where the result indication information is located includes at least two bits, which are used to indicate whether the terminal position will affect the uplink signal quality and whether it will affect the downlink signal quality.
  • bit value of the IE is "01", which is used to indicate that the terminal position will not affect the uplink signal quality, but will affect the downlink signal quality.
  • bit value of the IE is "00", which is used to indicate that the terminal position will not affect the uplink signal quality and will not affect the downlink signal quality.
  • the IE where the result indication information is located includes at least four bits, which are used to indicate whether the terminal position will affect the uplink signal quality, whether it will improve or reduce the uplink signal quality, whether it will affect the downlink signal quality, whether it will improve or reduce the downlink signal quality. Line signal quality.
  • bit value of the IE is "0101", which is used to indicate that the terminal position will not affect the uplink signal quality and will not affect the downlink signal quality.
  • bit value of the IE is "1110", which is used to indicate that the terminal position will affect the uplink signal quality, will improve the uplink signal quality, will affect the downlink signal quality, and will reduce the downlink signal quality.
  • the terminal context establishment response message includes an IE where the result indication information is located, it is used to indicate that the terminal position will affect the signal quality. If the IE is not included, it is used to indicate that the terminal position will not affect the signal quality.
  • the first network device 102-2 uses the result indication information to indicate that a second network device 103-2 whose terminal position will not affect the signal quality is determined as a target distribution unit.
  • the first network device 102-2 uses the result indication information to indicate that a second network device 103-2 whose terminal position may affect the signal quality is determined as a target distribution unit.
  • the first network device 102-2 uses the result indication information to indicate that the terminal position will affect the signal quality and a second network device 103-2 that will improve the signal quality is determined as a target distribution unit.
  • the first network device 102-2 uses the result indication information to indicate that the terminal position will affect the uplink signal quality (eg, will improve or reduce the uplink signal quality) and determines a second network device 103-2 that will improve the downlink signal quality as a target distribution unit.
  • the first network device 102-2 uses the result indication information to indicate that a second network device 103-2 whose terminal position will improve uplink signal quality and affect downlink signal quality (eg, will improve or reduce downlink signal quality) is determined as a target distribution unit.
  • a second network device 103-2 whose terminal position will improve uplink signal quality and affect downlink signal quality (eg, will improve or reduce downlink signal quality) is determined as a target distribution unit.
  • the first network device 102-2 uses the result indication information to indicate that the terminal position will improve the uplink signal quality and will improve the downlink signal quality, and determines a second network device 103-2 as a target distribution unit.
  • the first network device 102-2 determines a second network device 103-2 that can achieve uplink coverage enhancement and downlink coverage enhancement as a target distribution unit.
  • the first network device 102 - 2 determines the target distribution unit based on the result indication information and other information.
  • other information includes but is not limited to a measurement report reported by the terminal.
  • the first network device 102-2 first determines the second network device 103-2 whose terminal position will improve the signal quality based on the result indication information, and then selects a second network device 103-2 with the best signal quality among these second network devices 103-2 as the target distribution unit.
  • the first network device 102-2 first screens out the second network devices 103-2 whose signal quality is higher than a preset threshold, and then selects a second network device 103-2 whose terminal position will improve the signal quality among these second network devices 103-2 as a target distribution unit.
  • the first network device 102 - 2 may control the terminal 101 to switch to the target distribution unit.
  • Step S2207 The first network device 102-2 sends result indication information to the source distribution unit.
  • the source distribution unit receives the result indication information.
  • the number of result indication information is multiple, and the first network device 102-2 sends multiple result indication information and the identifier of the second network device 103-2 corresponding to each result indication information.
  • the first network device 102 - 2 may send the result indication information to the source distribution unit via an RRC message.
  • the first network device 102 - 2 may send an RRCReconfiguration message to the source distribution unit, including result indication information.
  • the indication method of the result indication information is similar to the indication method in step S2205, which will not be repeated here.
  • Step S2208 The source distribution unit sends result indication information to the terminal 101 .
  • terminal 101 receives the result indication information.
  • the source distribution unit may send the result indication information to the terminal 101 via an RRC message.
  • the source distribution unit may send an RRCReconfiguration message to the terminal 101, including result indication information.
  • the terminal 101 may send an RRCReconfigurationComplete message to the source distribution unit, which forwards it to the first network device 102-2 to inform the first network device 102-2 that the terminal 101 has synchronously updated the RRC related configuration.
  • the terminal 101 may determine the target distribution unit based on the result indication information and other conditions for performing conditional switching.
  • the terminal 101 may access the target distribution unit, and may disconnect from the first network device 102 - 2 before or after accessing the target distribution unit.
  • the names of information, etc. are not limited to the names recorded in the embodiments, and terms such as “information”, “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “domain”, “field”, “symbol”, “symbol”, “code element”, “codebook”, “codeword”, “codepoint”, “bit”, “data”, “program”, and “chip” can be used interchangeably.
  • uplink uplink
  • uplink uplink
  • physical uplink etc.
  • obtain can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from high levels, obtaining by self-processing, autonomous implementation, etc.
  • terms such as “certain”, “preset”, “preset”, “set”, “indicated”, “some”, “any”, and “first” can be interchangeable, and "specific A”, “preset A”, “preset A”, “set A”, “indicated A”, “some A”, “any A”, and “first A” can be interpreted as A pre-defined in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., and can also be interpreted as specific A, some A, any A, or first A, etc., but is not limited to this.
  • the information transmission method involved in the embodiments of the present disclosure may include at least one of steps S2201 to S2209.
  • step S2203 may be implemented as an independent embodiment
  • steps S2201+S2202 may be implemented as an independent embodiment
  • steps S2201 to S2203 may be implemented as independent embodiments
  • step S2204 may be implemented as an independent embodiment
  • step S2205 may be implemented as an independent embodiment
  • step S2205+step S2206 may be implemented as an independent embodiment
  • step S2205+step S2207+step S2208+step S2209 may be implemented as independent embodiments, but are not limited thereto.
  • steps S2201 to S2202 are optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • steps S2206 to S2209 are optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • step S2204 is optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • the first network device 102-2 may adjust the beam parameters based on the terminal position, which is not limited in the present disclosure.
  • step S2206 and step S2207 to step S2209 may be performed one by one.
  • step S2206 corresponds to the central unit controlling the terminal to perform cell switching
  • steps S2207 to step S2209 correspond to CHO on the terminal side.
  • step S2206 may be executed, and steps S2207 to S2209 may not be executed.
  • the first network device 102 - 2 may determine, for the terminal 101 , a target distribution unit to be accessed during cell switching.
  • steps S2207 to S2209 may be performed, and step S2206 may not be performed, and the terminal 101 itself determines the target distribution unit to be accessed during cell switching.
  • the impact result of the signal quality may be used as a new CHO switching condition event, and the terminal 101 needs to consider the impact result when executing CHO.
  • the existing CHO switching condition event may be reused, and the terminal 101 also needs to consider the impact result when executing CHO.
  • the existing CHO switching condition event may be RSRP.
  • the terminal 101 calculates a new RSRP for each cell based on the change value indicated in the result indication information and the RSRP of the cell in the measurement report, and determines to perform CHO based on the new RSRP.
  • the present disclosure does not limit the method for calculating the new RSRP.
  • steps S2201 to S2209 are optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • the terminal can report the terminal location information to the source distribution unit, and the source distribution unit forwards it to the centralized unit.
  • the candidate distribution unit can adjust the beam parameters based on the terminal location and provide result indication information to the centralized unit.
  • the result indication information is used to indicate the result of the impact of the terminal location on the signal quality.
  • the centralized unit or the terminal determines the target distribution unit to be accessed when the terminal performs cell switching based on at least the result indication information, thereby improving the reliability of the terminal when performing cell switching and improving the availability of NTN communication.
  • FIG3A is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3A , the present disclosure embodiment relates to an information transmission method, which can be executed by the first network device 102-1 or 102-2, and includes:
  • Step S3101 obtain terminal location information.
  • the first network device 102-1 is a source base station of the terminal 101.
  • the first network device 102-1 may obtain the terminal location information from the terminal 101, but is not limited thereto and may also receive the terminal location information sent by other entities.
  • the first network device 102 - 1 device obtains terminal location information determined according to predefined rules.
  • the first network device 102 - 1 performs processing to obtain the terminal location information.
  • step S3101 is omitted, the first network device 102-1 autonomously implements the function indicated by the terminal location information, or the first network device 102-1 obtains the UE location information from other network nodes, or the above functions are default or default.
  • the first network device 102-2 is a centralized unit of the service base station of the terminal 101.
  • the first network device 102-2 can obtain the terminal location information from the source distribution unit of the service base station of the terminal 101, but is not limited to this.
  • the terminal location information sent by other entities can also be received.
  • the first network device 102 - 2 device obtains terminal location information determined according to predefined rules.
  • the first network device 102 - 2 performs processing to obtain the terminal location information.
  • step S3101 is omitted, and the first network device 102-2 autonomously implements the function indicated by the terminal location information, or the above function is default or acquiescent.
  • step S3101 can refer to the optional implementation of step S2202 in FIG. 2B , and other related parts in the embodiment involved in FIG. 2B , which will not be described in detail here.
  • Step S3102 sending terminal location information.
  • the first network device may send the terminal location information to the second network device.
  • the second network device receives terminal location information.
  • the first network device 102 - 1 is a source base station of the terminal 101
  • the second network device 103 - 1 is a candidate base station when the terminal 101 switches.
  • step S3102 can refer to the optional implementation of step S2102 in FIG. 2A and other related parts in the embodiment involved in FIG. 2A , which will not be described in detail here.
  • the first network device 102-2 is a centralized unit of the service base station of the terminal 101
  • the second network device 103-2 is a candidate distribution unit of the service base station when the terminal 101 switches, that is, intra-gNB switching.
  • step S3102 can refer to the optional implementation of step S2203 in FIG. 2B and other related parts of the embodiment involved in FIG. 2B , which will not be described in detail here.
  • Step S3103 obtaining result indication information.
  • the first network device obtains the result indication information sent by the second network device, but is not limited thereto, and the first network device may also receive the result indication information sent by other entities.
  • the first network device obtains result indication information specified by the protocol.
  • the first network device performs processing to obtain result indication information.
  • step S3103 is omitted, the first network device autonomously implements the function indicated by the result indication information, or the first network device obtains the result indication information from other nodes, or the above function is default or acquiescent.
  • the first network device 102 - 1 is a source base station of the terminal 101
  • the second network device 103 - 1 is a candidate base station when the terminal 101 switches.
  • step S3103 can refer to the optional implementation of step S2104 in FIG. 2A and other related parts in the embodiment involved in FIG. 2A , which will not be described in detail here.
  • the first network device 102-2 is a centralized unit of a serving base station when the terminal 101 switches
  • the second network device 103-2 is a candidate distributed unit of a serving base station when the terminal 101 switches.
  • step S3103 can refer to the optional implementation of step S2205 in FIG. 2B and other related parts in the embodiment involved in FIG. 2B , which will not be described in detail here.
  • Step S3104 determine the target network device.
  • the first network device determines a target base station or a target distribution unit based at least on the result indication information.
  • the first network device 102-1 is the source base station of the terminal 101, and the second network device 103-1 is the candidate base station when the terminal 101 switches. At this time, the first network device 102-1 determines the target base station to be accessed when the terminal 101 performs cell switching based at least on the result indication information.
  • step S3104 can refer to the optional implementation of step S2105 in FIG. 2A and other related parts in the embodiment involved in FIG. 2A , which will not be described in detail here.
  • the first network device 102-2 is a centralized unit of a serving base station of the terminal 101
  • the second network device 103-2 is a candidate distributed unit of a serving base station when the terminal 101 switches.
  • the first network device 102-1 determines the target distributed unit to be accessed when the terminal 101 performs cell switching based at least on the result indication information.
  • step S3104 can refer to the optional implementation of step S2206 in FIG. 2B , and other related parts in the embodiment involved in FIG. 2B , which will not be described in detail here.
  • Step S3105 sending result indication information.
  • the first network device 102 - 1 is a source base station of the terminal 101 , and the first network device 102 - 1 may send the result indication information to the terminal 101 .
  • step S3105 can refer to the optional implementation of step S2106 in FIG. 2A and other related parts in the embodiment involved in FIG. 2A , which will not be described in detail here.
  • the first network device 102 - 2 is a centralized unit of a service base station of the terminal 101 , and the first network device 102 - 2 may send the result indication information to a source distribution unit of the terminal 101 .
  • the source distribution unit may forward the result indication information to the terminal 101 after receiving it.
  • step S3105 can refer to the optional implementation of step S2207 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.
  • the communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3105.
  • step S3101 may be implemented as an independent embodiment
  • step S3102 may be implemented as an independent embodiment
  • steps S3101 to S3102 may be implemented as independent embodiments
  • step S3103 may be implemented as an independent embodiment
  • step S3104 may be implemented as an independent embodiment
  • step S3105 may be implemented as an independent embodiment, but is not limited thereto.
  • step S3101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • step S3102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • the first network device may adjust the beam parameters based on the terminal position to determine the result indication information. In this case, the first network device does not need to send the terminal position information.
  • step S3104 and step S3105 may be performed selectively.
  • step S3104 corresponds to the first network device controlling the terminal to perform cell switching
  • step S3105 corresponds to CHO.
  • step S3104 may be executed without executing step S3105, or step S3105 may be executed without executing step S3104.
  • the first network device can provide the terminal location information to the second network device, thereby improving the reliability of the terminal when performing cell switching and improving the availability of NTN communication.
  • FIG3B is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3B , the present disclosure embodiment relates to an information transmission method, which can be executed by the second network device 103-1 or 103-2, and includes:
  • Step S3201 obtain terminal location information.
  • the second network device 103-1 is a candidate base station when the terminal 101 switches.
  • the second network device 102-1 can obtain the terminal location information from the first network device 102-1, such as the source base station, but is not limited to this.
  • the terminal location information sent by other entities can also be received.
  • the second network device 103 - 1 device obtains the terminal location information determined according to a predefined rule.
  • the second network device 103 - 1 performs processing to obtain the terminal location information.
  • step S3201 is omitted, or the second network device 103 - 1 autonomously implements the function indicated by the terminal location information, or the above function is default or acquiescent.
  • step S3201 can refer to the optional implementation of step S2102 in FIG. 2A and other related parts in the embodiment involved in FIG. 2A , which will not be described in detail here.
  • the second network device 103-2 is a candidate distribution unit of the service base station when the terminal 101 switches.
  • the second network device 103-2 can obtain the terminal location information from the first network device 102-2, such as the centralized unit of the service base station of the terminal 101, but is not limited to this.
  • the terminal location information sent by other entities can also be received.
  • the second network device 103 - 2 device obtains the terminal location information determined according to a predefined rule.
  • the second network device 103 - 2 performs processing to obtain the terminal location information.
  • step S3201 is omitted, and the second network device 103 - 2 autonomously implements the function indicated by the terminal location information, or the above function is default or acquiescent.
  • step S3201 can refer to the optional implementation of step S2203 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.
  • Step S3202 adjusting beam parameters.
  • the second network device adjusts the beam parameters based on the terminal location.
  • the second network device 103-1 is a candidate base station when the terminal 101 switches.
  • the optional implementation method of step S3202 can refer to the optional implementation method of step S2103 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.
  • the second network device 103-2 is a candidate distribution unit of the service base station when the terminal 101 switches.
  • the optional implementation method of step S3202 can refer to the optional implementation method of step S2204 in Figure 2B and other related parts in the embodiment involved in Figure 2B, which will not be repeated here.
  • Step S3203 sending result indication information.
  • the second network device sends result indication information to the first network device.
  • the second network device 103-1 is a candidate base station when the terminal 101 switches.
  • the optional implementation method of step S3203 can refer to the optional implementation method of step S2104 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.
  • the second network device 103-2 is a candidate distribution unit of the service base station when the terminal 101 switches.
  • the optional implementation method of step S3203 can refer to the optional implementation method of step S2205 in Figure 2B and other related parts in the embodiment involved in Figure 2B, which will not be repeated here.
  • step S3201 may be implemented as an independent embodiment
  • step S3202 may be implemented as an independent embodiment
  • steps S3201 to S3202 may be implemented as independent embodiments
  • step S3203 may be implemented as an independent embodiment, but is not limited thereto.
  • step S3201+step S3202 are optional, and one or more of these steps may be omitted or replaced in different embodiments. For example, when the first network device adjusts the beam parameters based on the terminal position, step S3201+step S3202 may not be performed.
  • step S3203 is optional, and one or more of these steps may be omitted or replaced in different embodiments. For example, when the first network device adjusts the beam parameter determination result indication information based on the terminal position, step S3203 may not be performed.
  • the second network device can obtain the terminal location information, adjust the beam parameters based on the terminal location, and send the obtained result indication information to the first network device, thereby improving the reliability of the terminal when performing cell switching and improving the availability of NTN communication.
  • FIG3C is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3C , the present disclosure embodiment relates to an information transmission method, which can be executed by a terminal 101, and includes:
  • Step S3301 reporting terminal location information.
  • the terminal 101 may report the terminal location information to the first network device 102-1, such as a source base station.
  • the first network device 102-1 such as a source base station.
  • step S3301 can refer to the optional implementation of step S2101 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.
  • the terminal 101 may report the terminal location information to the source distribution unit.
  • step S3301 can refer to the optional implementation of step S2201 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.
  • Step S3302 obtaining result indication information.
  • the terminal 101 receives result indication information sent by the first network device 102-1, such as a source base station.
  • step S3302 can refer to the optional implementation of step S2106 in FIG. 2A and other related parts in the embodiment involved in FIG. 2A , which will not be described in detail here.
  • terminal 101 receives result indication information sent by the source distribution unit.
  • step S3302 can refer to the optional implementation of step S2208 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.
  • Step S3303 determine the target network device.
  • terminal 101 determines the target base station based at least on the result indication information.
  • step S3303 can refer to the optional implementation of step S2107 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.
  • terminal 101 determines a target distribution unit based at least on the result indication information.
  • step S3303 can refer to the optional implementation of step S2209 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.
  • the communication method involved in the embodiment of the present disclosure may include at least one of step S3301 to step S3303.
  • step S3301 may be implemented as an independent embodiment
  • step S3302 may be implemented as an independent embodiment
  • steps S3302 to S3303 may be implemented as independent embodiments, but are not limited thereto.
  • step S3301 is optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • steps S3302 to S3303 are optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • steps S3302 to S3303 may not be performed.
  • steps S3302 to S3303 may be executed.
  • the terminal can at least determine the target network device to be accessed when performing cell switching based on the result indication information, thereby improving the reliability of the terminal when performing cell switching and improving the availability of NTN communication.
  • the candidate base station or candidate distribution unit can adjust the beam parameters according to the terminal location information to determine the impact result of the signal quality.
  • the source base station, the centralized unit or the terminal uses the impact result of the signal quality as a selection condition for determining the target base station or the target distribution unit, ensuring that the terminal switches to the target base station or the target distribution unit with better signal quality, improving the reliability of the terminal when performing cell switching, achieving coverage enhancement of uplink and downlink signal quality, and improving the availability of NTN communication.
  • the impact on the Xn interface and RRC signaling is as follows:
  • the source base station When the source base station sends a switching request message to the candidate base station, the source base station also sends the terminal location information to the candidate base station.
  • the candidate base station adjusts the beam parameters according to the terminal position and determines the result indication information.
  • the result indication information is used to indicate the impact result of the signal quality determined after adjusting the beam parameters based on the terminal position.
  • the candidate base station When the candidate base station sends a handover response message to the source base station, it also sends result indication information.
  • bit value of the IE may be 0, and if there is an impact on signal quality, the bit value of the IE may be 1.
  • the source base station When the source base station sends an RRCReconfiguration message to the terminal, it also sends result indication information from the candidate base station.
  • the result indication information is used to indicate the effect of the terminal position on the signal quality, which is used as a condition for the terminal to determine the target base station. That is, the change in signal quality after the candidate base station adjusts the beam parameters is used as one of the conditions for the terminal to select the target base station.
  • any of the following methods may be used to determine a target base station to be accessed when the terminal performs cell switching:
  • Method 1 After the source base station determines the target base station, the terminal is controlled to switch to the target base station.
  • the source base station receives result indication information sent by the candidate base station through an Xn interface, and determines the target base station based at least on the result indication information.
  • Method 2 The terminal determines the target base station and then switches to the target base station.
  • the source base station after receiving the result indication information sent by the candidate base station, the source base station sends it to the terminal via an RRC message, such as an RRCReconfiguration message.
  • the terminal determines the target base station based at least on the result indication information.
  • the CHO process of FIG. 1D is improved, as shown in FIG. 4A , and includes the following steps:
  • Step S4100 The terminal context in the source base station contains information about roaming and access restrictions, which is provided by the core network equipment, such as AMF, when the connection is established or the last TA is updated.
  • the core network equipment such as AMF
  • Step S4101 The source base station configures the terminal measurement process, and the terminal reports according to the measurement configuration.
  • the terminal may report the terminal location information to the source base station.
  • Step S4102 The source base station determines, based on the measurement report reported by the terminal, that the terminal needs to perform cell switching.
  • Step S4103 The source base station sends a handover request message to one or more candidate base stations, where the handover request message includes the terminal location information.
  • Step S4104 admission control may be performed by the candidate base station.
  • slice-aware admission control shall be performed. If the PDU session is associated with an unsupported slice, the candidate base station shall reject such PDU session.
  • the candidate base station adjusts the beam parameters based on the terminal position and determines result indication information, which is used to indicate the result of the impact of the terminal position on the signal quality.
  • Step S4105 The candidate base station sends a handover response message including the candidate cell configuration to the source base station, and the handover response message includes result indication information.
  • the bit value of the IE where the result indication information is located can be set to "0"; if the candidate base station determines that there is an impact on signal quality, the bit value of the IE where the result indication information is located can be set to "1".
  • Step S4106 The source base station sends an RRCReconfiguration message to the terminal.
  • the message contains the configuration of the candidate cell and CHO execution conditions, as well as result indication information.
  • Step S4107 The terminal sends an RRCReconfigurationComplete message to the source base station.
  • Step S4107-a if early data forwarding is applied, the source base station may send an early status transmission message to the candidate base station.
  • Step S4108 After receiving the above configuration, the terminal maintains the connection with the source base station and starts to evaluate the CHO execution conditions of the candidate cells.
  • the terminal determines the target base station according to the CHO execution conditions and result indication information. If at least one candidate cell meets the corresponding CHO execution conditions and its corresponding result indication information meets the preset requirements (for example, no impact on signal quality, improved signal quality, etc.), the terminal separates from the source base station, applies the stored corresponding configuration for the selected candidate cell, synchronizes to the candidate cell, and completes the RRC switching process target base station by sending an RRCReconfigurationComplete message. The terminal releases the stored CHO configuration after successfully completing the RRC switching process.
  • the preset requirements for example, no impact on signal quality, improved signal quality, etc.
  • Step S4108-a the target base station sends a HANDOVER SUCCESS message to the source base station, notifying the source base station that the terminal has successfully accessed the target base station.
  • Step S4108-b in return, the source base station sends an SN STATUS TRANSFER message to the target base station.
  • Step S4108-c the source base station sends a HANDOVER CANCEL message to other candidate base stations (if there are other candidate base stations) to cancel the CHO of the terminal.
  • Implementation method 1 The distributed unit (the distributed unit is deployed on the satellite) adjusts the beam parameters.
  • the centralized unit When the centralized unit sends a UE CONTEXT SETUP REQUEST message to the candidate distributed unit, it also sends the terminal location information.
  • the candidate distributed unit adjusts the beam parameters to determine the result indication information, which is used to indicate the impact of the terminal location on the signal quality.
  • the candidate distributed unit responds to the centralized unit with a UE CONTEXT SETUP RESPONSE message, which includes the result indication information.
  • the source distributed unit forwards the result indication information to the terminal through the RRCReconfiguration message as a condition for the terminal to determine the target distributed unit, that is, the impact result of the signal quality determined after the candidate distributed unit adjusts the beam parameters is used as one of the conditions for the terminal to select the target distributed unit.
  • Implementation method 2 The beam parameters are adjusted by the centralized unit.
  • the centralized unit adjusts the beam parameters based on the terminal position and determines result indication information, which is used to indicate the result of the impact of the terminal position on the signal quality.
  • the centralized unit sends a DL RRC MESSAGE TRANSFER message to the source distribution unit, which includes the generated RRCReconfiguration message and the result indication information.
  • the source distributed unit forwards the received RRCReconfiguration message to the terminal, including result indication information, and the terminal determines the target distributed unit based on at least the result indication information, that is, the impact result of the signal quality determined after the candidate distributed unit adjusts the beam parameters is used as one of the conditions for the terminal to select the target distributed unit.
  • any of the following methods may be used to determine a target distribution unit to be accessed when a terminal performs cell switching:
  • Method 1 The centralized unit determines the target distribution unit based at least on the result indication information.
  • the centralized unit determines the target distributed unit based on the result indication information provided by the candidate distributed units, it controls the terminal to access the target distributed unit.
  • the centralized unit determines the target distribution unit based at least on the result indication information, and controls the terminal to access the target distribution unit.
  • Method 2 The centralized unit provides the result indication information to the source distribution unit, which forwards it to the terminal, and the terminal determines the target distribution unit.
  • the CHO process of FIG. 1E is improved, as shown in FIG. 4B , and includes the following steps:
  • Step S4201 The terminal sends a measurement report to the source distribution unit.
  • the terminal may report the terminal location information to the source distribution unit.
  • Step S4202 The source distribution unit sends a UL RRC MESSAGE TRANSFER message to the centralized unit, which may include a measurement report and terminal location information.
  • Step S4203 the centralized unit sends a UE CONTEXT SETUP REQUEST message to the candidate distributed unit to create a terminal context and set up one or more data bearers.
  • the UE CONTEXT SETUP REQUEST message is sent for each candidate distribution unit and includes handover preparation information (HandoverPreparationInformation) for conditional handover or semi-static configuration information for changing conditional primary and secondary cells.
  • handover preparation information HandoverPreparationInformation
  • the UE CONTEXT SETUP REQUEST message includes terminal location information.
  • Step S4204 the candidate distributed unit responds to the centralized unit using the UE CONTEXT SETUP RESPONSE message.
  • the UE CONTEXT SETUP RESPONSE message includes the target cell identifier requested from the central unit.
  • the UE CONTEXT SETUP RESPONSE message includes result indication information.
  • Step S4205 the centralized unit sends a DL RRC MESSAGE TRANSFER message to the source distributed unit, which includes the generated RRCReconfiguration message.
  • the centralized unit may receive result indication information sent by the candidate distributed unit.
  • the centralized unit adjusts the beam parameters based on the terminal position to determine the result indication information.
  • Step S4206 The source distribution unit forwards the RRCReconfiguration message and result indication information to the terminal.
  • Step S4207 the terminal responds to the source distribution unit with an RRCReconfigurationComplete message.
  • Step S4208 the source distribution unit forwards the RRCReconfigurationComplete message to the centralized unit via a UL RRC MESSAGE TRANSFER message.
  • Step S4209 the execution condition for triggering conditional switching or conditional PSCell change is met, and the content indicated by the result indication information meets the preset requirements.
  • Step S4210 A random access process is performed between the terminal and the target distributed unit.
  • Step S4211 the terminal responds to the target distributed unit with an RRCReconfigurationComplete message.
  • the terminal sends an RRCReconfigurationComplete message to the target distributed unit.
  • Step S4212 the target distribution unit sends a UL RRC MESSAGE TRANSFER message to the centralized unit.
  • This message includes the RRCReconfigurationComplete message.
  • Step S4213 the centralized unit sends a UE CONTEXT MODIFICATION REQUEST message to the source distribution unit, instructing to stop the data transmission of the terminal.
  • the source distribution unit also sends a downlink data transmission status frame to notify the centralized unit that the downlink data has not been successfully transmitted to the terminal.
  • Step S4214 the source distribution unit responds to the centralized unit with a UE CONTEXT MODIFICATION RESPONSE message.
  • Step S4215 the centralized unit sends a UE CONTEXT RELEASE COMMAND message to the source distribution unit.
  • step S4216 the source distribution unit releases the terminal context and responds to the centralized unit with a UE CONTEXT RELEASE COMPLETE message.
  • the reliability of the terminal in performing cell switching is improved, and the coverage enhancement of the uplink and downlink signal quality is achieved.
  • the embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods.
  • a device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, etc.) in any of the above methods.
  • the division of the units or modules in the above devices is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation.
  • the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, instructions are stored in the memory, and the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above devices, 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 inside the device or a memory outside the device.
  • CPU central processing unit
  • microprocessor a microprocessor
  • 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 hardware circuits can be understood as one or more Processor;
  • the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship of the components in the circuit;
  • the above hardware circuit can be realized by a programmable logic device (PLD), taking a field programmable gate array (FPGA) as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of some or all of the above units or modules. All units or modules of the above device can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by software called by the processor, and the rest by hardware circuits.
  • PLD programmable logic device
  • FPGA field programmable gate
  • the processor is a circuit with signal processing capability.
  • the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the process of the processor loading a configuration document to implement the hardware circuit configuration may be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules.
  • it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as Neural Network Processing Unit (NPU), Tensor Processing Unit (TPU), Deep Learning Processing Unit (DPU), etc.
  • ASIC Neural Network Processing Unit
  • NPU Neural Network Processing Unit
  • TPU Tensor Processing Unit
  • DPU Deep Learning Processing Unit
  • FIG5A is a schematic diagram of the structure of a first network device according to an embodiment of the present disclosure.
  • the first network device 5100 may include: a transceiver module 5101 .
  • the transceiver module 5101 is configured so that the first network device 5100 sends the terminal location information to the second network device, and the terminal location information is used for the terminal to perform cell switching.
  • the first network device 5100 may include a processing module 5102 (not shown in Figure 5A), and the transceiver module 5102 is configured to determine the target distribution unit of the target base station or service base station to be accessed when the terminal performs cell switching based at least on the result indication information.
  • the above-mentioned transceiver module 5101 is used to execute at least one of the communication steps such as sending and/or receiving performed by the first network device 5100 in any of the above methods (for example, step S2101, step S2102, step S2104, step S2106, step S2202, step S2203, step S2205, step S2207, but not limited to these), which will not be repeated here.
  • the processing module 5102 is used to execute at least one of the other steps (such as step S2105 and step S2206, but not limited thereto) executed by the first network device 101 in any of the above methods, which will not be described in detail here.
  • FIG5B is a schematic diagram of the structure of a second network device according to an embodiment of the present disclosure.
  • the second network device 5200 may include: a transceiver module 5201 .
  • the transceiver module 5201 is configured so that the second network device 5200 receives the terminal location information sent by the first network device, and the terminal location information is used for the terminal to perform cell switching.
  • the second network device 5200 may include a processing module 5202 (not shown in FIG. 5B ), and the processing module 5202 is configured to adjust beam parameters based on the terminal position.
  • the above-mentioned transceiver module 5201 is used to execute at least one of the communication steps such as sending and/or receiving that can be executed by the second network device 5200 in any of the above methods (for example, step S2102, step S2104, step S2203, step S2205, but not limited to these), which will not be repeated here.
  • processing module 5202 is used to execute at least one of the other steps (such as step S2103 and step S2204, but not limited thereto) executable by the second network device 5200 in any of the above methods, which will not be described in detail here.
  • FIG5C is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure.
  • the terminal 5300 may include: a transceiver module 5301 and a processing module 5302 .
  • the transceiver module 5301 is configured so that the terminal 5300 receives result indication information, where the result indication information is used to indicate the result of the impact of the terminal location on the signal quality.
  • the processing module 5302 is configured to determine, based at least on the result indication information, a target distribution unit of a target base station or a serving base station to be accessed when performing a cell handover.
  • the above-mentioned transceiver module 5301 is used to execute at least one of the communication steps such as sending and/or receiving that can be executed by the terminal 5300 in any of the above methods (for example, step S2101, step S2106, step S2201, step S2208, but not limited to these), which will not be repeated here.
  • processing module 5202 is used to execute at least one of the other steps (such as step S2107 and step S2209, but not limited thereto) executable by the second network device 5200 in any of the above methods, which will not be described in detail here.
  • the transceiver module may include a sending module and/or a receiving module, and the sending module and the receiving module may be separated.
  • the transceiver module and the transceiver may be interchangeable.
  • the processing module can be a module or include multiple submodules.
  • the multiple submodules respectively execute all or part of the steps required to be executed by the processing module.
  • the processing module can be replaced with the processor.
  • the communication device 6100 may be a network device (e.g., a first network device, a second network device, etc.), or a terminal (e.g., a user device, etc.), or a chip, a chip system, or a processor that supports a core 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.
  • the communication device 6100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.
  • the communication device 6100 includes one or more processors 6101.
  • the processor 6101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may 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 a program, and process the data of the program.
  • the communication device 6100 is used to execute any of the above methods.
  • the communication device 6100 further includes one or more memories 6102 for storing instructions.
  • the memory 6102 may also be outside the communication device 6100.
  • the communication device 6100 further includes one or more transceivers 6103.
  • the transceiver 6103 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, step S2101, but not limited thereto), and the processor 6101 performs at least one of the other steps (step S2102, step S2103, but not limited thereto).
  • the transceiver may include a receiver and/or a transmitter, and the receiver and the transmitter may be separate or integrated.
  • the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.
  • the communication device 6100 may include one or more interface circuits 6104.
  • the interface circuit 6104 is connected to the memory 6102, and the interface circuit 6104 may be used to receive signals from the memory 6102 or other devices, and may be used to send signals to the memory 6102 or other devices.
  • the interface circuit 6104 may read instructions stored in the memory 6102 and send the instructions to the processor 6101.
  • the communication device 6100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A.
  • the communication device may be an independent device or may be part of a larger device.
  • 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 and 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, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
  • FIG. 6B is a schematic diagram of the structure of a chip 6200 provided in an embodiment of the present disclosure.
  • the communication device 6200 may be a chip or a chip system
  • the chip 6200 includes one or more processors 6201, and the chip 6200 is used to execute any of the above methods.
  • the chip 6200 further includes one or more interface circuits 6202.
  • the interface circuit 6202 is connected to the memory 6203.
  • the interface circuit 6202 can be used to receive signals from the memory 6203 or other devices, and the interface circuit 6202 can be used to send signals to the memory 6203 or other devices.
  • the interface circuit 6202 can read instructions stored in the memory 6203 and send the instructions to the processor 6201.
  • the interface circuit 6202 executes at least one of the communication steps such as sending and/or receiving in the above method (for example, step S2101, but not limited to this), and the processor 6201 executes at least one of the other steps (step S2102, step S2103, but not limited to this).
  • interface circuit interface circuit
  • transceiver pin transceiver
  • the chip 6200 further includes one or more memories 6203 for storing instructions.
  • the memory 6203 may be outside the chip 6200.
  • the present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to execute Any of the above methods.
  • the above program product is a computer program product.
  • the present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.

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Abstract

本公开提供一种信息传输方法及装置、存储介质，其中，所述方法包括：第一网络设备向第二网络设备发送终端位置信息，所述终端位置信息用于终端执行小区切换。本公开可以在网络设备间交互终端位置信息，从而提高终端执行小区切换时的可靠性，提高了NTN通信的可用性。

Description

信息传输方法及装置、存储介质 技术领域
本公开涉及通信领域，尤其涉及信息传输方法及装置、存储介质。
背景技术
目前，非地面网络(Non-Terrestrial Network，NTN)通信，尤其是卫星通信，因为具有广覆盖、强灾害抵抗能力和大容量的特性，已被纳入第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)的相关讨论之中。
发明内容
为了提高NTN通信中小区切换的可靠性，本公开实施例提供一种信息传输方法及装置、存储介质。
根据本公开实施例的第一方面，提供一种信息传输方法，包括：
第一网络设备向第二网络设备发送终端位置信息，所述终端位置信息用于终端执行小区切换。
根据本公开实施例的第二方面，提供一种信息传输方法，包括：
第二网络设备接收第一网络设备发送的终端位置信息，所述终端位置信息用于终端执行小区切换。
根据本公开实施例的第三方面，提供一种信息传输方法，包括：
终端接收结果指示信息，所述结果指示信息用于指示终端位置对信号质量的影响的结果；
所述终端至少基于所述结果指示信息，确定执行小区切换时待接入的目标基站或服务基站的目标分布单元。
根据本公开实施例的第四方面，提供一种第一网络设备，包括：
收发模块，被配置为第一网络设备向第二网络设备发送终端位置信息，所述终端位置信息用于终端执行小区切换。
根据本公开实施例的第五方面，提供一种第二网络设备，包括：
收发模块，被配置为第二网络设备接收第一网络设备发送的终端位置信息，所述终端位置信息用于终端执行小区切换。
根据本公开实施例的第六方面，提供一种终端，包括：
收发模块，被配置为终端接收结果指示信息，所述结果指示信息用于指示终端位置对信号质量的影响的结果；
处理模块，被配置为至少基于所述结果指示信息，确定执行小区切换时待接入的目标基站或服务基站的目标分布单元。
根据本公开实施例的第七方面，提供一种网络设备，包括：
一个或多个处理器；
其中，所述网络设备用于执行第一方面或第二方面中任一项所述的信息传输方法。
根据本公开实施例的第八方面，提供一种终端，包括：
一个或多个处理器；
其中，所述终端用于执行第三方面中任一项所述的信息传输行为的方法。
根据本公开实施例的第九方面，提供一种通信系统，包括第一网络设备、第二网络设备、终端，其中，所述第一网络设备被配置为实现第一方面中任一项所述的信息传输方法，所述第二网络设备被配置为实现第二方面中任一项所述的信息传输方法，所述终端被配置为实现第三方面中任一项所述的信息传输方法。
根据本公开实施例的第十方面，提供一种存储介质，所述存储介质存储有指令，当所述指令在通信设备上运行时，使得所述通信设备执行如第一方面、第二方面或第三方面中任一项所述的信息传输方法。
本公开实施例，可以在网络设备间交互终端位置信息，从而提高终端执行小区切换时的可靠性，提高了NTN通信的可用性。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。
图1A是根据本公开实施例提供的通信系统的架构的一个示例性示意图。
图1B是根据本公开实施例提供的通信系统的架构的一个示例性示意图。
图1C是根据本公开实施例提供的NTN网络架构的一个示例性示意图。
图1D是根据本公开实施例提供的条件切换过程的一个示例性交互示意图。
图1E是根据本公开实施例提供的条件切换过程的一个示例性交互示意图。
图2A是根据本公开实施例提供的信息传输方法的一个示例性交互示意图。
图2B是根据本公开实施例提供的信息传输方法的一个示例性交互示意图。
图3A是根据本公开实施例提供的信息传输方法的一个示例性交互示意图。
图3B是根据本公开实施例提供的信息传输方法的一个示例性交互示意图。
图3C是根据本公开实施例提供的信息传输方法的一个示例性交互示意图。
图4A是根据本公开实施例提供的信息传输方法的一个示例性交互示意图。
图4B是根据本公开实施例提供的信息传输方法的一个示例性交互示意图。
图5A是根据本公开实施例提供的信息传输装置的一个示例性交互示意图。
图5B是根据本公开实施例提供的信息传输装置的一个示例性交互示意图。
图5C是根据本公开实施例提供的信息传输装置的一个示例性交互示意图。
图6A是根据本公开实施例提供的通信设备的一个示例性交互示意图。
图6B是根据本公开实施例提供的芯片的一个示例性交互示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
在本公开使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含至少一个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开可能采用术语第一、第二、第三等来描述各种消息，但这些消息不应限于这些术语。这些术语仅用来将同一类型的消息彼此区分开。例如，在不脱离本公开范围的情况下，第一消息也可以被称为第二消息，类似地，第二消息也可以被称为第一消息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
本公开实施例提出了一种信息传输方法及装置、存储介质。
第一方面，本公开实施例提出了一种信息传输方法，包括：
第一网络设备向第二网络设备发送终端位置信息，所述终端位置信息用于终端执行小区切换。
上述实施例中，第一网络设备可以向第二网络设备发送该终端位置信息，该终端位置信息可用于终端执行小区切换，提高了终端执行小区切换时的可靠性，提高了NTN通信的可用性。
结合第一方面的一些实施例，在一些实施例中，所述方法还包括：
所述第一网络设备接收所述第二网络设备发送的结果指示信息，所述结果指示信息用于指示终端位置对信号质量的影响的结果。
上述实施例中，第二网络设备可以将结果指示信息提供给第一网络设备，其中，结果指示信息用于指示终端位置对信号质量的影响的结果，以便第一网络设备或终端至少基于该结果指示信息确定终端执行小区切换时待接入的目标基站或服务基站的目标分布单元，提高了终端执行小区切换时的可靠性，提高了NTN通信的可用性。
结合第一方面的一些实施例，在一些实施例中，所述结果指示信息用于指示所述第二网络设备基于所述终端位置调整波束参数，以确定对信号质量的所述影响结果。
上述实施例中，第二网络设备可以基于终端位置调整波束参数从而确定信号质量的影响结果，提高了终端执行小区切换时的可靠性。
结合第一方面的一些实施例，在一些实施例中，所述波束参数包括以下至少一项：
波束的指向参数；其中，所述指向参数包括以下至少一项：波束宽度参数；波束中心点位置的指向参数；
波束的形状参数。
上述实施例中，波束参数可以包括但不限于波束的指向参数、波束的形状参数等，实现简便，可用性高。
结合第一方面的一些实施例，在一些实施例中，信号包括以下至少一项：
所述第二网络设备所接收的来自所述终端的上行信号；
所述终端所接收的来自所述第二网络设备的下行信号。
上述实施例中，本公开实施例中的信号不仅涉及到第二网络设备所接收的来自所述终端的上行信号，还涉及到终端所接收的来自所述第二网络设备的下行信号，即同时考虑对上下行信号质量的影响，从而执行小区切换，提高了终端执行小区切换的可靠性，实现了上下行信号质量的覆盖增强。
结合第一方面的一些实施例，在一些实施例中，所述结果指示信息用于指示以下任一项：
所述终端位置不会影响所述信号质量；
所述终端位置会影响所述信号质量；
所述终端位置会提高所述信号质量；
所述终端位置会降低所述信号质量。
上述实施例中，结果指示信息可以用于指示上述至少一项，在执行小区切换时结合对信号质量的影响结果，提高小区切换的可靠性。
结合第一方面的一些实施例，在一些实施例中，所述第一网络设备向第二网络设备发送终端位置信息，包括以下任一项：
所述第一网络设备向所述第二网络设备发送切换请求消息，所述切换请求消息中包括所述终端位置信息；
所述第一网络设备向所述第二网络设备发送终端上下文建立请求消息，所述终端上下文建立请求消息中包括所述终端位置信息。
上述实施例中，第一网络设备可以复用切换请求消息或终端上下文建立请求消息，将终端位置信息提供给第二网络设备，对协议改动较小，可用性高。
结合第一方面的一些实施例，在一些实施例中，所述第一网络设备接收所述第二网络设备发送的结果指示信息，包括以下任一项：
所述第一网络设备接收所述第二网络设备发送的切换响应消息，所述切换响应消息中包括所述结果指示信息；
所述第一网络设备接收所述第二网络设备发送的终端上下文建立响应消息，所述终端上下文建立响应中包括所述结果指示信息。
上述实施例中，第二网络设备可以复用切换响应消息或终端上下文建立响应消息，将结果指示信息提供给第一网络设备，对协议改动较小，可用性高。
结合第一方面的一些实施例，在一些实施例中，所述第一网络设备为终端的源基站，所述第二网络设备为所述终端的候选基站；或者
所述第一网络设备为终端的服务基站的集中单元，所述第二网络设备为所述服务基站的候选分布单元。
上述实施例中，该信息传输方法可以适用于跨基站的小区切换场景或跨分布单元的小区切换场景，可用性高。
结合第一方面的一些实施例，在一些实施例中，所述方法还包括：
所述第一网络设备至少基于结果指示信息，确定所述终端执行小区切换时待接入的目标基站或服务基站的目标分布单元。
上述实施例中，第一网络设备至少可以基于结果指示信息，来确定所述终端执行小区切换时待接入的目标基站或服务基站的目标分布单元。提高了终端执行小区切换的可靠性。
结合第一方面的一些实施例，在一些实施例中，所述方法还包括：
所述第一网络设备向所述终端或所述终端的服务基站的源分布单元发送结果指示信息，所述结果指示信息用于所述终端确定执行小区切换时待接入的目标基站或服务基站的目标分布单元。
上述实施例中，第一网络设备还可以向终端发送该结果指示信息，或者将结果指示信息发送给终端的服务基站的源分布单元，由该源分布单元转发给终端，以便终端至少基于该结果指示信息，确定执行小区切换时待接入的目标基站或服务基站的目标分布单元，提高了终端执行小区切换时的可靠性，提高了NTN通信的可用性。
结合第一方面的一些实施例，在一些实施例中，所述方法还包括以下任一项：
所述第一网络设备接收所述终端上报的所述终端位置信息；
所述第一网络设备接收所述终端的服务基站的源分布单元转发的所述终端位置信息，所述终端位置信息是所述终端上报给所述源分布单元的。
上述实施例中，第一网络设备可以从终端或终端的服务基站的源分布单元获得改终端位置信息，从而提供给第二网络设备，实现简便，可用性高。
第二方面，本公开实施例提出了一种信息传输方法，包括：
第二网络设备接收第一网络设备发送的终端位置信息，所述终端位置信息用于终端执行小区切换。
上述实施例中，第二网络设备可以从第一网络设备处获取终端位置信息，该终端位置信息用于终端执行小区切换，提高了终端执行小区切换时的可靠性，提高了NTN通信的可用性。
结合第二方面的一些实施例，在一些实施例中，所述方法还包括：
所述第二网络设备基于终端位置，调整波束参数。
上述实施例中，第二网络设备可以基于该终端位置，调整波束参数，以便确定对信号质量的影响结果，辅助终端或第一网络设备确定终端执行小区切换时待接入的目标基站或服务基站的目标分布单元。提高了终端执行小区切换时的可靠性，提高了NTN通信的可用性。
结合第二方面的一些实施例，在一些实施例中，所述方法还包括：
向所述第一网络设备发送结果指示信息，所述结果指示信息用于指示终端位置对信号质量的影响的结果。
结合第二方面的一些实施例，在一些实施例中，所述结果指示信息用于指示所述第二网络设备基于所述终端位置调整波束参数，以确定对信号质量的所述影响结果。
结合第二方面的一些实施例，在一些实施例中，波束参数包括以下至少一项：
波束的指向参数；其中，所述指向参数包括以下至少一项：波束宽度参数；波束中心点位置的指向参数；
波束的形状参数。
结合第二方面的一些实施例，在一些实施例中，信号包括以下至少一项：
所述第二网络设备所接收的来自所述终端的上行信号；
所述终端所接收的来自所述第二网络设备的下行信号。
结合第二方面的一些实施例，在一些实施例中，所述结果指示信息用于指示以下任一项：
所述终端位置不会影响所述信号质量；
所述终端位置会影响所述信号质量；
所述终端位置会提高所述信号质量；
所述终端位置会降低所述信号质量。
结合第二方面的一些实施例，在一些实施例中，所述第二网络设备接收第一网络设备发送的终端位置信息，包括以下任一项：
所述第二网络设备接收所述第一网络设备发送的切换请求消息，所述切换请求消息中包括所述终端位置信息；
所述第二网络设备接收所述第一网络设备发送的终端上下文建立请求消息，所述终端上下文建立请求消息中包括所述终端位置信息。
结合第二方面的一些实施例，在一些实施例中，所述第二网络设备向所述第一网络设备发送结果指示信息，包括以下任一项：
所述第二网络设备向所述第一网络设备发送切换响应消息，所述切换响应消息中包括所述结果指示信息；
所述第二网络设备向所述第一网络设备发送终端上下文建立响应消息，所述终端上下文建立响应中包括所述结果指示信息。
结合第二方面的一些实施例，在一些实施例中，所述第一网络设备为所述终端的源基站，所述第二网络设备为所述终端的候选基站；或者
所述第一网络设备为终端的服务基站的集中单元，所述第二网络设备为所述服务基站的候选分布单元。
第三方面，本公开实施例提出了一种信息传输方法，包括：
终端接收结果指示信息，所述结果指示信息用于指示终端位置对信号质量的影响的结果；
所述终端至少基于所述结果指示信息，确定执行小区切换时待接入的目标基站或服务基站的目标分布单元。
上述实施例中，终端至少可以基于接收到的结果指示信息，确定执行小区切换时待接入的目标基站或服务基站的目标分布单元。提高了终端执行小区切换的可靠性，实现了上下行信号质量的覆盖增强，提高了NTN通信的可用性。
结合第三方面的一些实施例，在一些实施例中，所述结果指示信息用于指示所述第二网络设备基于所述终端位置调整波束参数，以确定对信号质量的所述影响结果。
结合第三方面的一些实施例，在一些实施例中，所述波束参数包括以下至少一项：
波束的指向参数；其中，所述指向参数包括以下至少一项：波束宽度参数；波束中心点位置的指向参数；
波束的形状参数。
结合第三方面的一些实施例，在一些实施例中，信号包括以下至少一项：
所述第二网络设备所接收的来自所述终端的上行信号；
所述终端所接收的来自所述第二网络设备的下行信号。
结合第三方面的一些实施例，在一些实施例中，所述结果指示信息用于指示以下任一项：
所述终端位置不会影响所述信号质量；
所述终端位置会影响所述信号质量；
所述终端位置会提高所述信号质量；
所述终端位置会降低所述信号质量。
结合第三方面的一些实施例，在一些实施例中，所述方法还包括以下任一项：
所述终端向源基站上报终端位置信息；或者
所述终端向服务基站的源分布单元上报终端位置信息，以使得所述源分布单元将所述终端位置信息转发给所述服务基站的集中单元。
结合第三方面的一些实施例，在一些实施例中，所述第二网络设备为候选基站；或者
所述第二网络设备为服务基站的候选分布单元。
第四方面，本公开实施例提出了一种第一网络设备，包括：
收发模块，被配置为第一网络设备向第二网络设备发送终端位置信息，所述终端位置信息用于终端执行小区切换。
第五方面，本公开实施例提出了一种第二网络设备，包括：
收发模块，被配置为第二网络设备接收第一网络设备发送的终端位置信息，所述终端位置信息用于终端执行小区切换。
第六方面，本公开实施例提出了一种终端，包括：
收发模块，被配置为终端接收结果指示信息，所述结果指示信息用于指示终端位置对信号质量的影响的结果；
处理模块，被配置为至少基于所述结果指示信息，确定执行小区切换时待接入的目标基站或服务基站的目标分布单元。
第七方面，本公开实施例提出了一种网络设备，包括：
一个或多个处理器；
其中，所述网络设备用于执行第一方面或第二方面中任一项所述的信息传输方法。
第八方面，本公开实施例提出了一种终端，包括：
一个或多个处理器；
其中，所述终端用于执行第三方面中任一项所述的信息传输行为的方法。
第九方面，本公开实施例提出了一种通信系统，包括第一网络设备、第二网络设备、终端，其中，所述第一网络设备被配置为实现第一方面中任一项所述的信息传输方法，所述第二网络设备被配置为实现第二方面中任一项所述的信息传输方法，所述终端被配置为实现第三方面中任一项所述的信息传输方法。
第十方面，本公开实施例提出了一种存储介质，所述存储介质存储有指令，当所述指令在通信设备上运行时，使得所述通信设备执行如第一方面、第二方面或第三方面中任一项所述的信息传输方法。
可以理解地，上述终端、网络设备、通信系统、存储介质、计算机程序均用于执行本公开实施例所提出的方法。因此，其所能达到的有益效果可以参考对应方法中的有益效果，此处不再赘述。
本公开实施例提出了信息传输方法及装置、存储介质。在一些实施例中，信息传输方法与信息处理方法、通信方法等术语可以相互替换，信息传输装置与信息处理装置、通信装置等术语可以相互替换，信息处理系统、通信系统等术语可以相互替换。
本公开实施例并非穷举，仅为部分实施例的示意，不作为对本公开保护范围的具体限制。在不矛盾的情况下，某一实施例中的每个步骤均可以作为独立实施例来实施，且各步骤之间可以任意组合，例如，在某一实施例中去除部分步骤后的方案也可以作为独立实施例来实施，且在某一实施例中各步骤的顺序可以任意交换，另外，某一实施例中的可选实现方式可以任意组合；此外，各实施例之间可以任意组合，例如，不同实施例的部分或全部步骤可以任意组合，某一实施例可以与其他实施例的可选实现方式任意组合。
在各本公开实施例中，如果没有特殊说明以及逻辑冲突，各实施例之间的术语和/或描述具有一致性，且可以互相引用，不同实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
本公开实施例中所使用的术语只是为了描述特定实施例的目的，而并非作为对本公开的限制。
在本公开实施例中，除非另有说明，以单数形式表示的元素，如“一个”、“一种”、“该”、“上述”、“所述”、“前述”、“这一”等，可以表示“一个且只有一个”，也可以表示“一个或多个”、“至少一个”等。例如，在翻译中使用如英语中的“a”、“an”、“the”等冠词(article)的情况下，冠词之后的名词可以理解为单数表达形式，也可以理解为复数表达形式。
在本公开实施例中，“多个”是指两个或两个以上。
在一些实施例中，“至少一者(至少一项、至少一个)(at least one of)”、“一个或多个(one or more)”、“多个(a plurality of)”、“多个(multiple)等术语可以相互替换。
在一些实施例中，“A、B中的至少一者”、“A和/或B”、“在一情况下A，在另一情况下B”、“响应于一情况A，响应于另一情况B”等记载方式，根据情况可以包括以下技术方案：在一些实施例中A(与B无关地执行A)；在一些实施例中B(与A无关地执行B)；在一些实施例中从A和B中选择执行(A和B被选择性执行)；在一些实施例中A和B(A和B都被执行)。当有A、B、C等更多分支时也类似上述。
在一些实施例中，“A或B”等记载方式，根据情况可以包括以下技术方案：在一些实施例中A(与B无关地执行A)；在一些实施例中B(与A无关地执行B)；在一些实施例中从A和B中选择执行(A和B被选择性执行)。当有A、B、C等更多分支时也类似上述。
本公开实施例中的“第一”、“第二”等前缀词，仅仅为了区分不同的描述对象，不对描述对象的位置、顺序、优先级、数量或内容等构成限制，对描述对象的陈述参见权利要求或实施例中上下文的描述，不应因为使用前缀词而构成多余的限制。例如，描述对象为“字段”，则“第一字段”和“第二字段”中“字段”之前的序数词并不限制“字段”之间的位置或顺序，“第一”和“第二”并不限制其修饰的“字段”是否在同一个消息中，也不限制“第一字段”和“第二字段”的先后顺序。再如，描述对象为“等级”，则“第一等级”和“第二等级”中“等级”之前的序数词并不限制“等级”之间的优先级。再如，描述对象的数量并不受序数词的限制，可以是一个或者多个，以“第一装置”为例，其中“装置”的数量可以是一个或者多个。此外，不同前缀词修饰的对象可以相同或不同，例如，描述对象为“装置”，则“第一装置”和“第二装置”可以是相同的装置或者不同的装置，其类型可以相同或不同；再如，描述对象为“信息”，则“第一信息”和“第二信息”可以是相同的信息或者不同的信息，其内容可以相同或不同。
在一些实施例中，“包括A”、“包含A”、“用于指示A”、“携带A”，可以解释为直接携带A，也可以解释为间接指示A。
在一些实施例中，“响应于……”、“响应于确定……”、“在……的情况下”、“在……时”、“当……时”、“若……”、“如果……”等术语可以相互替换。
在一些实施例中，装置和设备可以解释为实体的、也可以解释为虚拟的，其名称不限定于实施例中所记载的名称，在一些情况下也可以被理解为“设备(equipment)”、“设备(device)”、“电路”、“网元”、“节点”、“功能”、“单元”、“部件(section)”、“系统”、“网络”、“实体”、“主体”等。
在一些实施例中，“网络”可以解释为网络中包含的装置，例如，接入网设备、核心网设备等。
在一些实施例中，“接入网设备(access network device，AN device)”也可以被称为“无线接入网设备(radio access network device，RAN device)”、“基站(base station，BS)”、“无线基站(radio base station)”、“固定台(fixed station)”，在一些实施例中也可以被理解为“节点(node)”、“接入点(access point)”、“发送点(transmission point，TP)”、“接收点(reception point，RP)”、“发送和/或接收点(transmission/reception point，TRP)”、“面板(panel)”、“天线面板(antenna panel)”、“天线阵列(antenna array)”、“小区(cell)”、“宏小区(macro cell)”、“小型小区(small cell)”、“毫微微小区(femto cell)”、“微微小区(pico cell)”、“扇区(sector)”、“小区组(cell group)”、“服务小区”、“载波(carrier)”、“分量载波(component carrier)”、“带宽部分(bandwidth  part，BWP)”等。
在一些实施例中，“终端(terminal)”或“终端设备(terminal device)”可以被称为“用户设备(user equipment，UE)”、“用户终端(user terminal)”、“移动台(mobile station，MS)”、“移动终端(mobile terminal，MT)”、订户站(subscriber station)、移动单元(mobile unit)、订户单元(subscriber unit)、无线单元(wireless unit)、远程单元(remote unit)、移动设备(mobile device)、无线设备(wireless device)、无线通信设备(wireless communication device)、远程设备(remote device)、移动订户站(mobile subscriber station)、接入终端(access terminal)、移动终端(mobile terminal)、无线终端(wireless terminal)、远程终端(remote terminal)、手持设备(handset)、用户代理(user agent)、移动客户端(mobile client)、客户端(client)等。
在一些实施例中，获取数据、信息等可以遵照所在地国家的法律法规。
在一些实施例中，可以在得到用户同意后获取数据、信息等。
此外，本公开实施例的表格中的每一元素、每一行、或每一列均可以作为独立实施例来实施，任意元素、任意行、任意列的组合也可以作为独立实施例来实施。
图1A、图1B是根据本公开实施例示出的通信系统的架构示意图。
如图1A所示，通信系统100-1包括终端(terminal)101、第一网络设备102-1、第二网络设备103-1。
在一些实施例中，终端101例如包括手机(mobile phone)、可穿戴设备、物联网设备、具备通信功能的汽车、智能汽车、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备中的至少一者，但不限于此。
在一些实施例中，第一网络设备102-1或第二网络设备103-1包括接入网设备，例如是将终端接入到无线网络的节点或设备，接入网设备可以包括5G通信系统中的演进节点B(evolved NodeB，eNB)、下一代演进节点B(next generation eNB，ng-eNB)、下一代节点B(next generation NodeB，gNB)、节点B(node B，NB)、家庭节点B(home node B，HNB)、家庭演进节点B(home evolved nodeB，HeNB)、无线回传设备、无线网络控制器(radio network controller，RNC)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、基带单元(base band unit，BBU)、移动交换中心、6G通信系统中的基站、开放型基站(Open RAN)、云基站(Cloud RAN)、其他通信系统中的基站、Wi-Fi系统中的接入节点中的至少一者，但不限于此。
在一些实施例中，本公开的技术方案可适用于Open RAN架构，此时，本公开实施例所涉及的接入网设备间或者接入网设备内的接口可变为Open RAN的内部接口，这些内部接口之间的流程和信息交互可以通过软件或者程序实现。
在一些实施例中，在跨基站(inter-gNB)切换场景下，第一网络设备102-1可以为终端101的源基站，第二网络设备103-1可以为终端101切换时的候选基站。其中，候选基站是指终端在执行小区切换时所确定的可切换至的基站。
如图1B所示，通信系统100-2包括终端(terminal)101、第一网络设备102-2、第二网络设备103-2。
在一些实施例中，终端101例如包括手机(mobile phone)、可穿戴设备、物联网设备、具备通信功能的汽车、智能汽车、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备中的至少一者，但不限于此。
在一些实施例中，在跨分布单元(inter-Distributed Unit，inter-DU)或基站内(intra-gNB)切换场景下，第一网络设备102-2可以为终端101的集中单元(Central Unit，CU)，第二网络设备103-2可以为终端101切换时的候选分布单元。其中，候选分布单元与集中单元、终端101的源分布单元同属于终端101的服务基站，候选分布单元是指终端在执行小区切换时所确定的可切换至的服务基站中的分布单元。
采用CU-DU的结构可以将接入网设备的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU，但不限于此。
在一些实施例中，上述通信系统100-1或100-2还包括核心网设备(图1A、图1B中未示出)，核心网设备可以是一个设备，也可以是多个设备或设备群。网元可以是虚拟的，也可以是实体的。核心网例如包括演进分组核心(Evolved Packet Core，EPC)、5G核心网络(5G Core Network，5GCN)、下一代核心(Next Generation Core，NGC)中的至少一者。
可以理解的是，本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开实施例提出的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本公开实施例提出的技术方案对于类似的技术问题同样适用。
下述本公开实施例可以应用于图1A所示的通信系统100-1或图1B所示的通信系统100-2、或部分主体，但不限于此。图1A或图1B所示的各主体是例示，通信系统可以包括图1A或图1B中的全部或部分主体，也可以包括图1A或图1B以外的其他主体，各主体数量和形态为任意，各主体可以是实体的也可以是虚拟的，各主体之间的连接关系是例示，各主体之间可以不连接也可以连接，其连接可以是任意方式，可以是直接连接也可以是间接连接，可以是有线连接也可以是无线连接。
本公开各实施例可以应用于长期演进(Long Term Evolution，LTE)、LTE-Advanced(LTE-A)、LTE-Beyond(LTE-B)、SUPER 3G、IMT-Advanced、第四代移动通信系统(4th generation mobile communication system，4G)、)、第五代移动通信系统(5th generation mobile communication system，5G)、5G新空口(new radio，NR)、未来无线接入(Future Radio Access，FRA)、新无线接入技术(New-Radio Access Technology，RAT)、新无线(New Radio，NR)、新无线接入(New radio access，NX)、未来一代无线接入(Future generation radio access，FX)、Global System for Mobile communications(GSM(注册商标))、CDMA2000、超移动宽带(Ultra Mobile Broadband，UMB)、IEEE 802.11(Wi-Fi(注册商标))、IEEE 802.16(WiMAX(注册商标))、IEEE 802.20、超宽带(Ultra-WideBand，UWB)、蓝牙(Bluetooth(注册商标))、陆上公用移动通信网(Public Land Mobile Network，PLMN)网络、利用其他通信方法的系统、基于它们而扩展的下一代系统等。此外，也可以将多个系统组合(例如，LTE或者LTE-A与5G的组合等)应用。
NTN场景包括基于对地静止轨道(Geostationary Earth Orbiting，GEO)卫星的场景以及基于非对地静止轨道(Non-Geostationary Earth Orbiting，NGSO)卫星的场景。NTN网络的具体构架如图1C所示，其中，终端与卫星之间的链路为服务链路(service link)，卫星与NTN网关间的链路为馈线链路(feeder link)。
目前的NTN网络存在透明构架和再生构架两种，透明构架即卫星具有透明转发的作用，即基站和用户之间的通信是通过卫星进行转发的，一般默认为NTN网关和基站离得很近可近似的认为两者在同一位置，再生构架即基站的一部分(DU)在卫星上或者基站的全部结构在卫星上，卫星上具有数据处理的能力。但由于卫星的轨道高度较高，所以终端和基站间的路径损耗大，版本18(Release-18，Rel-18)通过仿真后发现需要对上行信道，例如物理上行共享信道(Physical Uplink Shared Channel，PUSCH)、物理上行控制信道(Physical Uplink Control Channel，PUCCH)，尤其是针对用于基于互联网语音传输(Voice over Internet Protocol，VoIP)的PUSCH、用于消息4混合自动重传请求确认(Message 4Hybrid Automatic Repeat request-ACKnowledgement，Msg4HARQ-ACK)的PUCCH等信道进行覆盖增强。
对于再生卫星构架，可以分为基站的全部功能在卫星上以及DU的功能在卫星上(CU和DU分离)两种类型，适应性地，本公开实施例提供了跨基站(inter-gNB)的切换流程和跨分布单元(inter-DU)的切换流程。其中，跨分布单元的小区切换也可以称为基站内(intra-gNB)的小区切换。
参照图1D所示，跨基站(inter-gNB)的条件切换(Conditional Handover，CHO)流程包括以下步骤：
步骤S1400，源基站内终端上下文包含有关漫游和访问限制信息，这些信息在连接建立或最后一次跟踪区(Tracking Area，TA)更新时由核心网设备，例如认证管理功能(AuthenticationManagementFunction，AMF)提供。
步骤S1401，源基站配置终端测量过程，终端根据测量配置进行上报。
步骤S1402，源基站根据终端上报的测量报告(MeasurementReport)决定终端需要执行小区切换。
步骤S1403，源基站向一个或多个候选基站发送切换请求消息。
步骤S1404，准入控制可由候选基站执行。
如果切片信息被发送到候选基站，则应执行切片感知准入控制。如果协议数据单元(Protocol Data Unit，PDU)会话与不受支持的切片相关联，则候选基站应拒绝此类PDU会话。
步骤S1405，候选基站向源基站发送包含候选小区配置的切换响应消息。
步骤S1406，源基站向终端发送RRCReconfiguration消息。
该RRCReconfiguration消息可以包含候选小区的配置和条件切换执行条件，候选小区的配置可以跟随源基站的其他信息重新配置。
步骤S1407，终端向源基站发送RRCReconfigurationComplete消息。
步骤S1407-a，如果应用了早期数据转发，则源基站可以发送早期状态传输(EARLY STATUS TRANSFER)消息给候选基站。
步骤S1408，终端在接收到上述配置后保持与源基站的连接，并开始评估候选小区的CHO执行条件。如果至少一个候选小区满足相应的CHO执行条件，则终端断开与源基站的连接，为该选定的候选小区应用存储的相应配置，同步到该候选小区。终端在成功完成RRC切换过程后释放存储的CHO配置。
步骤S1408-a，目标基站向源基站发送切换成功(HANDOVER SUCCESS)消息，通知源基站该终端已经成功接入目标基站。
步骤S1408-b，作为回报，源基站发送序列号状态传输(Sequence Number STATUS TRANSFER，SN STATUS TRANSFER)消息给目标基站。
步骤S1408-c，源基站向其他候选基站(如果有其他候选基站)发送切换关闭(HANDOVER CANCEL)消息，以取消终端的CHO。
参照图1E所示，跨分布单元(inter-DU)的CHO流程包括以下步骤：
步骤S1501，终端给源分布单元发送测量报告。
步骤S1502，源分布单元向集中单元发送上行无线资源控制消息传输(UL RRC MESSAGE TRANSFER)消息以传达接收到的MeasurementReport。
步骤S1503，集中单元向候选分布单元发送UE CONTEXT SETUP REQUEST消息。
该消息用于创建终端上下文并设置一个或多个数据承载。
UE CONTEXT SETUP REQUEST消息针对每个候选分布单元发送跨DU的条件移动性信息，并且包括用于条件切换的切换准备信息(HandoverPreparationInformation)或用于更改条件主辅小区的半静态配置信息。
步骤S1504，候选分布单元使用UE CONTEXT SETUP RESPONSE消息进行响应。
UE CONTEXT SETUP RESPONSE消息中包括从集中单元处请求的目标小区标识。
步骤S1505，集中单元向源分布单元发送下行无线资源控制消息传输(DL RRC MESSAGE TRANSFER)消息。
该消息中包括生成的RRCReconfiguration消息。
步骤S1506，源分布单元将收到的RRCReconfiguration消息转发给终端。
步骤S1507，终端用RRCReconfigurationComplete消息响应源分布单元。
步骤S1508，源分布单元通过UL RRC MESSAGE TRANSFER消息转发RRCReconfigurationComplete消息给集中单元。
步骤S1509，触发条件切换或CHO的执行条件被满足。
步骤S1510，终端与目标分布单元之间执行随机接入过程。
步骤S1511，终端向目标分布单元发送RRCReconfigurationComplete消息。
步骤S1512，目标分布单元向集中单元发送UL RRC MESSAGE TRANSFER消息。
该消息中包括RRCReconfigurationComplete消息。
步骤S1513，集中单元向源分布单元发送终端上下文更新请求(UE CONTEXT MODIFICATION REQUEST)消息，指示停止终端的数据传输。
源分布单元还发送下行链路数据传输状态帧以通知集中单元下行链路数据未成功传输给终端。
步骤S1514，源分布单元用终端上下文更新响应(UE CONTEXT MODIFICATION RESPONSE)消息响应集中单元。
步骤S1515，集中单元向源分布单元发送终端上下文释放命令(UE CONTEXT RELEASE COMMAND)消息。
步骤S1516，源分布单元释放终端上下文并用终端上下文释放完成(UE CONTEXT RELEASE COMPLETE)消息响应集中单元。
通过调整卫星波束的参数，比如对卫星波束的指向(3dB波束宽度和卫星波束中心点位置的指向性)，卫星波束的形状等波束参数进行调整，可以改变卫星对UL信号的接收质量，对于再生卫星而言，若卫星具有相控阵天线，则卫星可以通过算法改变卫星波束的参数进而增强对覆盖范围内服务用户UL信号的接收强度。
当进行小区切换时，候选基站或候选分布单元不知道将要接入的终端所在的位置，无法确保终端接入的目标基站或目标分布单元的可靠性。且无法确定终端接入的目标基站或目标分布单元的信号质量，不能实现上下行信号质量覆盖增强。
图2A是根据本公开实施例示出的信息传输方法的交互示意图。如图2A所示，本公开实施例涉及信息传输方法，适用于跨基站(inter-gNB)的小区切换场景，上述方法包括：
步骤S2101，终端101向第一网络设备102-1上报终端位置信息。
在一些实施例中，第一网络设备102-1接收该终端位置信息。
在一些实施例中，第一网络设备102-1为终端101的源基站。其中，源基站是终端101执行小区切换前的服务基站。
在一些实施例中，终端位置信息的名称不做限定，其例如是位置消息、第一消息、第一信令等。
在一些实施例中，终端位置信息用于终端101执行小区切换。
在一些实施例中，终端位置信息是终端101所在位置的相关信息。
在一些实施例中，终端位置信息包括但不限于以下至少一项：终端101所在的经度信息和维度信息中的至少一项；终端101的全球导航卫星系统(Global Navigation Satellite System，GNSS)信息；终端101所在小区标识信息。其中，小区标识可以是物理小区标识(Physical Cell Identifier，PCI)等。
在一些实施例中，终端101可以周期性向第一网络设备102-1上报终端位置信息。
在一些实施例中，终端101可以基于网络侧指示向第一网络设备102-1上报终端位置信息。
在一些实施例中，终端101可以在服务小区的信号质量下降的情况下，向第一网络设备102-1上报终端位置信息。
在一些实施例中，终端101可以向第一网络设备102-1上报测量报告，其中包括终端位置信息。
步骤S2102，第一网络设备102-1向第二网络设备103-1发送终端位置信息。
在一些实施例中，第二网络设备103-1接收终端位置信息。
在一些实施例中，第二网络设备103-1可以为终端101切换时的候选基站。
在一些实施例中，第二网络设备103-1的数目可以为一个或多个，本公开对此不作限定。
在一些实施例中，第一网络设备102-1可以通过与第二网络设备103-1之间的网络间接口向第二网络设备103-1发送终端位置信息。
其中，网络间接口包括但不限于X2接口或Xn接口。
在一些实施例中，第一网络设备102-1可以向核心网设备发送该终端位置信息，由核心网设备将终端位置信息转发给第二网络设备103-1。
在一些实施例中，第一网络设备102-1向第二网络设备103-1发送切换请求(HANDOVER REQUEST)消息，该切换请求消息用于请求执行小区切换，且切换请求消息中可以包括终端位置信息。
通过切换请求消息将终端位置信息提供给第二网络设备103-1，以便第二网络设备103-1确定终端位置信息用于终端执行小区切换。
步骤S2103，第二网络设备103-1基于终端位置，调整波束参数。
在一些实施例中，波束参数的名称不做限定。
在一些实施例中，波束参数包括但不限于以下至少一项：波束的指向参数；波束的形状参数。
在一个示例中，波束的指向参数可以用于表征波束的方向。
在一个示例中，波束的指向参数包括但但不限于以下至少一项：波束宽度参数；波束中心点位置的指向参数。
示例性地，波束宽度参数可以用于表征波束带宽，其中，波束带宽可以为窄带宽或宽带宽，需要说明的是，这里的窄带宽或宽带宽为相对概念，本公开对具体带宽不作限定。
示例性地，波束中心点位置的指向参数可以用于表征波束中心点的方向。
在一个示例中，波束的形状参数可以用于表征波束赋形结果。
示例性地，波束的形状参数可以包括但不限于发送波束时使用的天线或天线阵列、波束的振幅、波束的相位等。
在一些实施例中，第二网络设备103-1可以基于终端位置，调整波束的指向参数，使得波束方向更好的对准终端所在位置。
示例性地，第二网络设备103-1可以基于终端位置，调整波束宽度参数，例如将波束宽度调整为宽带宽或窄带宽。
示例性地，第二网络设备103-1可以基于终端位置，调整波束中心点位置的指向参数，使得该波束中心点位置的指向参数所指向的方向对准终端所在位置。
在一些实施例中，第二网络设备103-1可以基于终端位置，调整波束的形状参数，为终端101进行更准确、可靠的波束赋形。
在一些实施例中，第二网络设备103-1可以基于终端位置，调整波束的指向参数和波束的形状参数，具体调整方式与上述过程类似，在此不再赘述。
在一些实施例中，第二网络设备103-1基于终端位置，调整其他波束参数的方案也应属于本公开的保护范围。
步骤S2104，第二网络设备103-1向第一网络设备102-1发送结果指示信息。
在一些实施例中，第一网络设备102-1接收结果指示信息。
在一些实施例中，结果指示信息的名称不做限定，其例如是指示消息、指示信息、第一消息、第一信令等。
在一些实施例中，结果指示信息用于指示终端位置对信号质量的影响的结果。
在一些实施例中，结果指示信息用于指示所述第二网络设备103-1基于所述终端位置调整波束参数，以确定对信号质量的所述影响结果。
在一些实施例中，上述的信号包括但不限于以下至少一项：所述第二网络设备103-1所接收的来自所述终端101的上行信号；所述终端101所接收的来自所述第二网络设备103-1的下行信号。
在一些实施例中，结果指示信息用于但不限于指示以下任一项：所述终端位置不会影响所述信号质量；所述终端位置会影响所述信号质量；所述终端位置会提高所述信号质量；所述终端位置会降低所述信号质量。
示例性地，结果指示信息用于指示该终端位置不会影响所述信号质量，例如第二网络设备103-1无论是否基于终端位置调整波束参数，不会影响上行信号质量和/或不会影响下行信号质量。
示例性地，结果指示信息用于指示该终端位置会影响所述信号质量，例如第二网络设备103-1基于终端位置调整波束参数，会影响上行信号质量和/或会影响下行信号质量。
示例性地，结果指示信息用于指示该终端位置会提高信号质量，例如第二网络设备103-1基于终端位置调整波束参数后会提高上行信号质量和/或会提高下行信号质量。
示例性地，结果指示信息用于指示该终端位置会降低信号质量，例如第二网络设备103-1基于终端位置调整波束参数后会降低上行信号质量和/或会降低下行信号质量。
示例性地，结果指示信息用于指示该终端位置不会影响信号质量、会影响信号质量、会提高信号质量、会降低信号质量中的一项、两项或多项。
例如，第二网络设备103-1基于该终端位置无论是否调整波束参数均不会影响上行信号质量，但如果调整波束参数会影响下行信号质量。
再例如，第二网络设备103-1基于该终端位置无论是否调整波束参数均不会影响上行信号质量，但如果调整波束参数会影响下行信号质量，且会降低下行信号质量。
在一些实施例中，第二网络设备103-1可以基于自身实现，预估调整波束参数前后信号质量的变化值，相应地，结果指示信息中可以包括该变化值。
示例性地，变化值的正负可以用于表征提高或降低了信号质量，变化值的绝对值用于表征信号质量的改变量。
示例性地，变化值可以以毫瓦分贝(dbm)为单位。
例如，第二网络设备103-1预估调整波束参数后提高了信号质量，且预计提高10dbm，则结果指示信息可以用于指示+10。
再例如，第二网络设备103-1预估调整波束参数后降低了信号质量，且预计提高5dbm，则结果指示信息可以用于指示-5。
以上仅为示例性说明，结果指示信息指示的其他内容也应属于本公开的保护范围。
在一些实施例中，第二网络设备103-1基于终端位置调整波束参数后可以预估对信号质量的影响结果，进而向第一网络设备102-1发送该结果指示信息。
在一些实施例中，第二网络设备103-1通过网络间接口向第一网络设备102-1发送该结果指示信息。网络间接口包括但不限于X2接口、Xn接口等。
在一些实施例中，第二网络设备103-1向核心网设备发送结果指示信息，核心网设备转发结果指示信息给第一网络设备102-1。
在一些实施例中，第一网络设备102-1向第二网络设备103-1发送了切换请求消息，其中包括终端位置信息，相应地，第二网络设备103-1可以向第一网络设备102-1发送切换响应 (HANDOVER REQUEST ACKNOWLEDGE)消息，切换响应消息中包括所述结果指示信息。
在一些实施例中，结果指示信息所在的信息单元(InformationElement，IE)的比特值设置为第一值时，用于指示终端位置不会影响所述信号质量，设置为第二值时，用于指示终端位置会影响信号质量。
其中，第一值可以为“0”，第二值可以为“1”。
其中，第一值可以为“1”，第二值可以为“0”。
在一些实施例中，结果指示信息所在的IE的比特值设置为第三值时，用于指示终端位置会提高所述信号质量，设置为第四值时，用于指示终端位置会降低信号质量。
其中，第三值可以为“0”，第四值可以为“1”。
其中，第三值可以为“1”，第四值可以为“0”。
在一些实施例中，结果指示信息所在的IE包括至少两个比特位，分别用于指示终端位置是否会影响信号质量、终端位置会提高或降低了信号质量。
例如，该IE的比特值为“01”或“00”，用于指示终端位置不会影响信号质量。
再例如，该IE的比特值为“11”，用于指示终端位置会影响信号质量，且终端位置会提高信号质量。该IE的比特值为“10”，用于指示终端位置会影响信号质量，且终端位置会降低信号质量。
在一些实施例中，结果指示信息所在的IE包括至少两个比特位，分别用于指示终端位置是否会影响上行信号质量、是否会影响下行信号质量。
例如，该IE的比特值为“01”，用于指示终端位置不会影响上行信号质量，但会影响下行信号质量。
再例如，该IE的比特值为“00”，用于指示终端位置不会影响上行信号质量，且不会影响下行信号质量。
在一些实施例中，结果指示信息所在的IE包括至少四个比特位，分别用于指示终端位置是否影响上行信号质量、会提高或降低上行信号质量、是否影响下行信号质量、会提高或降低下行信号质量。
例如，该IE的比特值为“0101”，用于指示终端位置不会影响上行信号质量，且终端位置不会影响下行信号质量。
再例如，该IE的比特值为“1110”，用于终端位置指示会影响上行信号质量，终端位置会提高上行信号质量，终端位置会影响下行信号质量，且终端位置会降低下行信号质量。
在一些实施例中，切换响应消息中包括结果指示信息所在的IE，则用于指示终端位置会影响信号质量，如果不包括该IE，则用于指示终端位置不会影响信号质量。
以上仅为示例性说明，结果指示信息的指示方式均应属于本公开的保护范围。
步骤S2105，第一网络设备102-1至少基于结果指示信息，确定所述终端101执行小区切换时待接入的目标基站。
在一些实施例中，目标基站是候选基站即第二网络设备103-1中的一个，且目标基站是终端执行小区切换时待接入的基站。
在一些实施例中，第一网络设备102-1基于该结果指示信息确定目标基站。
示例性地，第一网络设备102-1将结果指示信息用于指示终端位置不会影响信号质量的一个第二网络设备103-1确定为目标基站。
示例性地，第一网络设备102-1将结果指示信息用于指示终端位置会影响信号质量的一个第二网络设备103-1确定为目标基站。
示例性地，第一网络设备102-1将结果指示信息用于指示终端位置会提高信号质量的一个第二网络设备103-1确定为目标基站。
示例性地，第一网络设备102-1将结果指示信息用于指示终端位置会影响信号质量且会提高信号质量的一个第二网络设备103-1确定为目标基站。
示例性地，第一网络设备102-1将结果指示信息用于指示终端位置会影响上行信号质量(例如会提高或降低上行信号质量)且会提高下行信号质量的一个第二网络设备103-1确定为目标基站。
示例性地，第一网络设备102-1将结果指示信息用于指示终端位置不会影响上行信号质量但会提高下行信号质量的一个第二网络设备103-1确定为目标基站。
也就是说，第一网络设备102-1将能够实现下行覆盖增强的一个第二网络设备103-1确定为目标基站。
示例性地，第一网络设备102-1将结果指示信息用于指示终端位置会提高上行信号质量且会 影响下行信号质量(例如会提高或降低下行信号质量)的一个第二网络设备103-1确定为目标基站。
示例性地，第一网络设备102-1将结果指示信息用于指示终端位置会提高上行信号质量且不会影响下行信号质量的一个第二网络设备103-1确定为目标基站。
也就是说，第一网络设备102-1将能够实现上行覆盖增强的一个第二网络设备103-1确定为目标基站。
示例性地，第一网络设备102-1将结果指示信息用于指示终端位置会提高上行信号质量且会提高下行信号质量的一个第二网络设备103-1确定为目标基站。
也就是说，第一网络设备102-1将能够实现上行覆盖增强以及下行覆盖增强的一个第二网络设备103-1确定为目标基站。
以上仅为示例性说明，第一网络设备102-1基于结果指示信息确定目标基站的其他方案也应属于本公开的保护范围。
在一些实施例中，第一网络设备102-1基于该结果指示信息和其他信息共同确定目标基站。
在一个示例中，其他信息包括但不限于终端上报的测量报告。
示例性地，第一网络设备102-1基于测量报告和结果指示信息共同确定目标基站。
示例性地，第一网络设备102-1先基于结果指示信息，确定终端位置会提高信号质量的第二网络设备103-1，进而在这些第二网络设备103-1中选择信号质量最好的一个第二网络设备103-1作为目标基站。
示例性地，第一网络设备102-1先筛选出信号质量高于预设阈值的第二网络设备103-1，进而在这些第二网络设备103-1中选择终端位置会提高信号质量的一个第二网络设备103-1作为目标基站。
在一些实施例中，第一网络设备102-1确定目标基站后，可以控制终端101切换至该目标基站。
步骤S2106，第一网络设备102-1向终端101发送结果指示信息。
在一些实施例中，终端101接收该结果指示信息。
在一些实施例中，结果指示信息的数目为多个，第一网络设备102-1向终端101发送结果指示信息和每个结果指示信息对应的第二网络设备103-1的标识。
在一些实施例中，第一网络设备102-1可以通过无线资源控制(Radio Resource Control，RRC)消息将结果指示信息发送给终端101。
在一些实施例中，第一网络设备102-1可以向终端101发送无线资源控制重配置(RRCReconfiguration)消息，其中包括结果指示信息。
在一些实施例中，终端101接收到RRCReconfiguration消息后，可以向第一网络设备102-1发送无线资源控制重配置完成(RRCReconfigurationComplete)消息，告知第一网络设备102-1该终端101已经同步更新RRC相关配置。
在一些实施例中，结果指示信息的指示方式与步骤S2104中的指示方式类似，在此不再赘述。
示例性地，RRCReconfiguration消息中包括该结果指示信息所在的IE，则用于指示对信号质量有影响，反正用于指示对信号质量无影响。
步骤S2107，终端101至少基于结果指示信息，确定执行小区切换时待接入的目标基站。
在一些实施例中，终端101可以基于结果指示信息，确定目标基站。
在一些实施例中，终端101可以基于结果指示信息和执行条件切换的其他条件，确定目标基站。
终端101至少基于结果指示信息确定目标基站的方案与上述第一网络设备102-1确定目标基站的方案类似，在此不再赘述。
在一些实施例中，终端101确定目标基站后，可以接入该目标基站，且可以在接入目标基站之前或之后断开与第一网络设备102-1的连接。
在一些实施例中，信息等的名称不限定于实施例中所记载的名称，“信息(information)”、“消息(message)”、“信号(signal)”、“信令(signaling)”、“报告(report)”、“配置(configuration)”、“指示(indication)”、“指令(instruction)”、“命令(command)”、“信道”、“参数(parameter)”、“域”、“字段”、“符号(symbol)”、“码元(symbol)”、“码本(codebook)”、“码字(codeword)”、“码点(codepoint)”、“比特(bit)”、“数据(data)”、“程序(program)”、“码片(chip)”等术语可以相互替换。
在一些实施例中，“上行”、“上行链路”、“物理上行链路”等术语可以相互替换。
在一些实施例中，“发送”、“发射”、“上报”、“下发”、“传输”、“双向传输”、“发送和/或接收” 等术语可以相互替换。
在一些实施例中，“获取”、“获得”、“得到”、“接收”、“传输”、“双向传输”、“发送和/或接收”可以相互替换，其可以解释为从其他主体接收，从协议中获取，从高层获取，自身处理得到、自主实现等多种含义。
在一些实施例中，“发送”、“发射”、“上报”、“下发”、“传输”、“双向传输”、“发送和/或接收”等术语可以相互替换。
在一些实施例中，“特定(certain)”、“预定(preseted)”、“预设”、“设定”、“指示(indicated)”、“某一”、“任意”、“第一”等术语可以相互替换，“特定A”、“预定A”、“预设A”、“设定A”、“指示A”、“某一A”、“任意A”、“第一A”可以解释为在协议等中预先规定的A，也可以解释为通过设定、配置、或指示等得到的A，也可以解释为特定A、某一A、任意A、或第一A等，但不限于此。
在一些实施例中，本公开实施例所涉及的信息传输方法可以包括步骤S2101～步骤S2107中的至少一者。例如，步骤S2101可以作为独立实施例来实施，步骤S2102可以作为独立实施例来实施，步骤S2102+S2103可以作为独立实施例来实施，步骤S2101至S2103可以作为独立实施例来实施，步骤S2104可以作为独立实施例来实施，步骤S2105可以作为独立实施例来实施，步骤S2106+步骤S2107可以作为独立实施例来实施，步骤S2104+步骤S2105可以作为独立实施例来实施，步骤S2104+步骤S2106+步骤S2107可以作为独立实施例来实施，但不限于此。
在一些实施例中，步骤S2101是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。
在一些实施例中，步骤S2103是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。
在一些实施例中，步骤S2104至步骤S2107是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。
在一些实施例中，步骤S2105、步骤S2106+步骤S2107可以择一执行，例如步骤S2105对应源基站控制终端执行小区切换，步骤S2106+步骤S2107对应终端侧的CHO。示例性地，可以执行步骤S2105，不执行步骤S2106+步骤S2107，此时可以由第一网络设备102-1为终端101确定小区切换时待接入的目标基站。
示例性地，可以执行步骤S2106+步骤S2107，不执行步骤S2105，由终端101自己确定小区切换时待接入的目标基站。
其中，可以将信号质量的影响结果作为新的CHO切换条件事件，终端101在执行CHO时，需要考虑该影响结果。
其中，可以复用已有的CHO切换条件事件，终端101在执行CHO时，同样需要考虑该影响结果。
示例性地，已有的CHO切换条件事件可以为参考信号接收功率(Reference Signal Receiving Power，RSRP)，终端101基于结果指示信息中指示的变化值，结合测量报告中小区的RSRP，计算得到每个小区的一个新的RSRP，基于该新的RSRP，确定执行CHO。
其中，本公开对计算新的RSRP的方式不作限定，可以计算RSRP和变化值的平均值，或者可以根据业务需求为RSRP、变化值赋予不同的权重，进而计算加权平均值，或者还可以采用其他方式计算得到新的RSRP。
在一些实施例中，步骤S2101至S2107(是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。
上述实施例中，可以由源基站向候选基站发送终端位置信息，候选基站可以基于终端位置调整波束参数，并将结果指示信息提供给源基站，结果指示信息用于指示终端位置对信号质量的影响的结果，进而由源基站或终端至少基于该结果指示信息确定终端执行小区切换时待接入的目标基站，提高了终端执行小区切换时的可靠性，提高了NTN通信的可用性。
图2B是根据本公开实施例示出的信息传输方法的交互示意图。如图2B所示，本公开实施例涉及信息传输方法，适用于跨分布单元(inter-DU)或基站内(intra-gNB)的小区切换场景，上述方法包括：
步骤S2201，终端101向服务基站的源分布单元上报终端位置信息。
在一些实施例中，源分布单元接收该终端位置信息。
在一些实施例中，源分布单元是终端执行小区切换前接入的该服务基站的分布单元。
在一些实施例中，终端位置信息的名称不做限定，其例如是位置消息、第一消息、第一信令等。
在一些实施例中，终端位置信息用于终端101执行小区切换。
在一些实施例中，终端位置信息是终端101所在位置的相关信息。
在一些实施例中，终端位置信息包括但不限于以下至少一项：终端101所在的经度信息和维度信息中的至少一项；终端101的GNSS信息；终端101所在小区标识信息。其中，小区标识可以是PCI等。
在一些实施例中，终端101可以周期性向源分布单元上报终端位置信息。
在一些实施例中，终端101可以基于网络侧指示向源分布单元上报终端位置信息。
在一些实施例中，终端101可以在服务小区的信号质量下降的情况下，向源分布单元上报终端位置信息。
在一些实施例中，终端101可以向源分布单元上报测量报告，其中包括终端位置信息。
步骤S2202，源分布单元向第一网络设备102-2发送终端位置信息。
在一些实施例中，第一网络设备102-2接收终端位置信息。
在一些实施例中，第一网络设备102-2为终端101的服务基站的集中单元。
在一些实施例中，源分布单元可以向第一网络设备102-2发送测量报告，其中包括终端位置信息。
步骤S2203，第一网络设备102-2向第二网络设备103-2发送终端位置信息。
在一些实施例中，第二网络设备103-2接收终端位置信息。
在一些实施例中，第二网络设备103-2可以为终端101切换时的服务基站的候选分布单元。
在一些实施例中，第二网络设备103-2的数目可以为一个或多个，本公开对此不作限定。
在一些实施例中，第一网络设备102-2向第二网络设备103-2发送F1应用程序协议(F1Application Protocol，F1AP)消息，其中包括终端位置信息。
在一个示例中，第一网络设备102-2向第二网络设备103-2发送终端上下文建立请求(UE context setup request)消息，该终端上下文建立请求消息中可以包括终端位置信息。
步骤S2204，第二网络设备103-2基于终端位置，调整波束参数。
在一些实施例中，波束参数的名称不做限定。
在一些实施例中，波束参数包括但不限于以下至少一项：波束的指向参数；波束的形状参数。
在一个示例中，波束的指向参数可以用于表征波束的方向。
在一个示例中，波束的指向参数包括但但不限于以下至少一项：波束宽度参数；波束中心点位置的指向参数。
示例性地，波束宽度参数可以用于表征波束带宽，其中，波束带宽可以为窄带宽或宽带宽，需要说明的是，这里的窄带宽或宽带宽为相对概念，本公开对具体带宽不作限定。
示例性地，波束中心点位置的指向参数可以用于表征波束中心点的方向。
在一个示例中，波束的形状参数可以用于表征波束赋形结果。
示例性地，波束的形状参数可以包括但不限于发送波束时使用的天线或天线阵列、波束的振幅、波束的相位等。
在一些实施例中，第二网络设备103-2可以基于终端位置，调整波束的指向参数，使得波束方向更好的对准终端所在位置。
示例性地，第二网络设备103-1可以基于终端位置，调整波束宽度参数，例如将波束宽度调整为宽带宽或窄带宽。
示例性地，第二网络设备103-2可以基于终端位置，调整波束中心点位置的指向参数，使得该波束中心点位置的指向参数所指向的方向对准终端所在位置。
在一些实施例中，第二网络设备103-2可以基于终端位置，调整波束的形状参数，为终端101进行更准确、可靠的波束赋形。
在一些实施例中，第二网络设备103-2可以基于终端位置，调整波束的指向参数和波束的形状参数，具体调整方式与上述过程类似，在此不再赘述。
在一些实施例中，第二网络设备103-2基于终端位置，调整其他波束参数的方案也应属于本公开的保护范围。
步骤S2205，第二网络设备103-2向第一网络设备102-2发送结果指示信息。
在一些实施例中，第一网络设备102-2接收结果指示信息。
在一些实施例中，结果指示信息的名称不做限定，其例如是指示消息、指示信息、第一消息、第一信令等。
在一些实施例中，结果指示信息用于指示终端位置对信号质量的影响的结果。
在一些实施例中，结果指示信息用于指示所述第二网络设备103-2基于所述终端位置调整波 束参数，以确定对信号质量的影响结果。
在一些实施例中，上述的信号包括但不限于以下至少一项：所述第二网络设备103-2所接收的来自所述终端101的上行信号；所述终端101所接收的来自所述第二网络设备103-2的下行信号。
在一些实施例中，结果指示信息用于但不限于指示以下任一项：所述终端位置不会影响所述信号质量；所述终端位置会影响所述信号质量；述终端位置会提高所述信号质量；所述终端位置会降低所述信号质量。
示例性地，结果指示信息用于指示该终端位置不会影响所述信号质量，例如第二网络设备103-2无论是否基于终端位置调整波束参数，不会影响上行信号质量和/或不会影响下行信号质量。
示例性地，结果指示信息用于指示该终端位置会影响所述信号质量，例如第二网络设备103-2如果基于终端位置调整波束参数，会影响上行信号质量和/或会影响下行信号质量。
示例性地，结果指示信息用于指示该终端位置会提高信号质量，例如第二网络设备103-2基于终端位置调整波束参数后会提高上行信号质量和/或会提高下行信号质量。
示例性地，结果指示信息用于指示该终端位置会降低信号质量，例如第二网络设备103-2基于终端位置调整波束参数后会降低上行信号质量和/或会降低下行信号质量。
示例性地，结果指示信息用于指示该终端位置不会影响信号质量、会影响信号质量、会提高信号质量、会降低信号质量中的一项、两项或多项。
例如，第二网络设备103-2基于该终端位置无论是否调整波束参数均不会影响上行信号质量，但如果调整波束参数会影响下行信号质量。
再例如，第二网络设备103-2基于该终端位置无论是否调整波束参数均不会影响上行信号质量，但如果调整波束参数会影响下行信号质量，且会降低下行信号质量。
在一些实施例中，第二网络设备103-2可以基于自身实现，预估调整波束参数前后信号质量的变化值，结果指示信息中包括该变化值。
示例性地，变化值的正负可以用于表征提高或降低了信号质量，变化值的绝对值用于表征信号质量的改变量。
以上仅为示例性说明，结果指示信息指示的其他内容也应属于本公开的保护范围。
在一些实施例中，第一网络设备102-2向第二网络设备103-2发送了F1AP消息，其中包括终端位置信息，相应地，第二网络设备103-2可以向第一网络设备102-2发送F1AP消息，其中包括所述结果指示信息。
示例性地，第一网络设备102-2向第二网络设备103-2发送了终端上下文建立请求消息，其中包括终端位置信息，相应地，第二网络设备103-2可以向第一网络设备102-2发送终端上下文建立响应(UE context setup response)消息，其中包括所述结果指示信息。
在一些实施例中，结果指示信息所在的IE的比特值设置为第一值时，用于指示终端位置不会影响所述信号质量，设置为第二值时，用于指示终端位置会影响信号质量。
其中，第一值可以为“0”，第二值可以为“1”。
其中，第一值可以为“1”，第二值可以为“0”。
在一些实施例中，结果指示信息所在的IE的比特值设置为第三值时，用于指示终端位置会提高所述信号质量，设置为第四值时，用于指示终端位置会降低信号质量。
其中，第三值可以为“0”，第四值可以为“1”。
其中，第三值可以为“1”，第四值可以为“0”。
在一些实施例中，结果指示信息所在的IE包括至少两个比特位，分别用于指示终端位置是否会影响信号质量、会提高或降低信号质量。
例如，该IE的比特值为“01”或“00”，用于指示终端位置不会影响信号质量。
再例如，该IE的比特值为“11”，用于指示终端位置会影响信号质量，且会提高信号质量。该IE的比特值为“10”，用于指示终端位置会影响信号质量，且会降低信号质量。
在一些实施例中，结果指示信息所在的IE包括至少两个比特位，分别用于指示终端位置是否会影响上行信号质量、是否会影响下行信号质量。
例如，该IE的比特值为“01”，用于指示终端位置不会影响上行信号质量，但会影响下行信号质量。
再例如，该IE的比特值为“00”，用于指示终端位置不会影响上行信号质量，且不会影响下行信号质量。
在一些实施例中，结果指示信息所在的IE包括至少四个比特位，分别用于指示终端位置是否会影响上行信号质量、会提高或降低上行信号质量、是否会影响下行信号质量、会提高或降低下 行信号质量。
例如，该IE的比特值为“0101”，用于指示终端位置不会影响上行信号质量，且不会影响下行信号质量。
再例如，该IE的比特值为“1110”，用于指示终端位置会影响上行信号质量，会提高上行信号质量，会影响下行信号质量，且会降低下行信号质量。
在一些实施例中，终端上下文建立响应消息中包括结果指示信息所在的IE，则用于指示终端位置会影响信号质量，如果不包括该IE，则用于指示终端位置不会影响信号质量。
以上仅为示例性说明，结果指示信息的指示方式均应属于本公开的保护范围。
步骤S2206，第一网络设备102-2至少基于结果指示信息，确定所述终端101执行小区切换时待接入的目标分布单元。
在一些实施例中，目标分布单元是候选分布单元即第二网络设备103-2中的一个，且目标分布单元是终端执行小区切换时待接入的服务基站的分布单元。
在一些实施例中，第一网络设备102-2基于该结果指示信息确定目标分布单元。
示例性地，第一网络设备102-2将结果指示信息用于指示终端位置不会影响信号质量的一个第二网络设备103-2确定为目标分布单元。
示例性地，第一网络设备102-2将结果指示信息用于指示终端位置会影响信号质量的一个第二网络设备103-2确定为目标分布单元。
示例性地，第一网络设备102-2将结果指示信息用于指示终端位置会提高信号质量的一个第二网络设备103-2确定为目标分布单元。
示例性地，第一网络设备102-2将结果指示信息用于指示终端位置会影响信号质量且会提高信号质量的一个第二网络设备103-2确定为目标分布单元。
示例性地，第一网络设备102-2将结果指示信息用于指示终端位置会影响上行信号质量(例如会提高或降低上行信号质量)且会提高下行信号质量的一个第二网络设备103-2确定为目标分布单元。
示例性地，第一网络设备102-2将结果指示信息用于指示终端位置不会影响上行信号质量但会提高下行信号质量的一个第二网络设备103-2确定为目标分布单元。
也就是说，第一网络设备102-2将能够实现下行覆盖增强的一个第二网络设备103-2确定为目标分布单元。
示例性地，第一网络设备102-2将结果指示信息用于指示终端位置会提高上行信号质量且会影响下行信号质量(例如会提高或降低下行信号质量)的一个第二网络设备103-2确定为目标分布单元。
示例性地，第一网络设备102-2将结果指示信息用于指示终端位置会提高上行信号质量且不会影响下行信号质量的一个第二网络设备103-2确定为目标分布单元。
也就是说，第一网络设备102-2将能够实现上行覆盖增强的一个第二网络设备103-2确定为目标分布单元。
示例性地，第一网络设备102-2将结果指示信息用于指示终端位置会提高上行信号质量且会提高下行信号质量的一个第二网络设备103-2确定为目标分布单元。
也就是说，第一网络设备102-2将能够实现上行覆盖增强以及下行覆盖增强的一个第二网络设备103-2确定为目标分布单元。
以上仅为示例性说明，第一网络设备102-2基于结果指示信息确定目标分布单元的其他方案也应属于本公开的保护范围。
在一些实施例中，第一网络设备102-2基于该结果指示信息和其他信息共同确定目标分布单元。
在一个示例中，其他信息包括但不限于终端上报的测量报告。
示例性地，第一网络设备102-2基于测量报告和结果指示信息共同确定目标分布单元。
示例性地，第一网络设备102-2先基于结果指示信息，确定终端位置会提高信号质量的第二网络设备103-2，进而在这些第二网络设备103-2中选择信号质量最好的一个第二网络设备103-2作为目标分布单元。
示例性地，第一网络设备102-2先筛选出信号质量高于预设阈值的第二网络设备103-2，进而在这些第二网络设备103-2中选择终端位置会提高信号质量的一个第二网络设备103-2作为目标分布单元。
在一些实施例中，第一网络设备102-2确定目标分布单元后，可以控制终端101切换至该目标分布单元。
步骤S2207，第一网络设备102-2向源分布单元发送结果指示信息。
在一些实施例中，源分布单元接收该结果指示信息。
在一些实施例中，结果指示信息的数目为多个，第一网络设备102-2发送多个结果指示信息和每个结果指示信息对应的第二网络设备103-2的标识。
在一些实施例中，第一网络设备102-2可以通过RRC消息将结果指示信息发送给源分布单元。
在一些实施例中，第一网络设备102-2可以向源分布单元发送RRCReconfiguration消息，其中包括结果指示信息。
在一些实施例中，结果指示信息的指示方式与步骤S2205中的指示方式类似，在此不再赘述。
示例性地，RRCReconfiguration消息中包括该结果指示信息所在的IE，则用于指示对信号质量有影响，反正用于指示对信号质量无影响。
步骤S2208，源分布单元向终端101发送结果指示信息。
在一些实施例中，终端101接收该结果指示信息。
在一些实施例中，源分布单元可以通过RRC消息将结果指示信息发送给终端101。
在一些实施例中，源分布单元可以向终端101发送RRCReconfiguration消息，其中包括结果指示信息。
在一些实施例中，终端101接收到RRCReconfiguration消息后，可以向源分布单元发送RRCReconfigurationComplete消息，源分布单元转发给第一网络设备102-2，告知第一网络设备102-2该终端101已经同步更新RRC相关配置。
步骤S2209，终端101至少基于结果指示信息，确定所述终端101执行小区切换时待接入的目标分布单元。
在一些实施例中，终端101可以基于结果指示信息，确定目标分布单元。
在一些实施例中，终端101可以基于结果指示信息和执行条件切换的其他条件，确定目标分布单元。
终端101至少基于结果指示信息确定目标分布单元的方案与上述第一网络设备102-2确定目标分布单元的方案类似，在此不再赘述。
在一些实施例中，终端101确定目标分布单元后，可以接入该目标分布单元，且可以在接入目标分布单元之前或之后断开与第一网络设备102-2的连接。
在一些实施例中，信息等的名称不限定于实施例中所记载的名称，“信息(information)”、“消息(message)”、“信号(signal)”、“信令(signaling)”、“报告(report)”、“配置(configuration)”、“指示(indication)”、“指令(instruction)”、“命令(command)”、“信道”、“参数(parameter)”、“域”、“字段”、“符号(symbol)”、“码元(symbol)”、“码本(codebook)”、“码字(codeword)”、“码点(codepoint)”、“比特(bit)”、“数据(data)”、“程序(program)”、“码片(chip)”等术语可以相互替换。
在一些实施例中，“上行”、“上行链路”、“物理上行链路”等术语可以相互替换。
在一些实施例中，“发送”、“发射”、“上报”、“下发”、“传输”、“双向传输”、“发送和/或接收”等术语可以相互替换。
在一些实施例中，“获取”、“获得”、“得到”、“接收”、“传输”、“双向传输”、“发送和/或接收”可以相互替换，其可以解释为从其他主体接收，从协议中获取，从高层获取，自身处理得到、自主实现等多种含义。
在一些实施例中，“发送”、“发射”、“上报”、“下发”、“传输”、“双向传输”、“发送和/或接收”等术语可以相互替换。
在一些实施例中，“特定(certain)”、“预定(preseted)”、“预设”、“设定”、“指示(indicated)”、“某一”、“任意”、“第一”等术语可以相互替换，“特定A”、“预定A”、“预设A”、“设定A”、“指示A”、“某一A”、“任意A”、“第一A”可以解释为在协议等中预先规定的A，也可以解释为通过设定、配置、或指示等得到的A，也可以解释为特定A、某一A、任意A、或第一A等，但不限于此。
在一些实施例中，本公开实施例所涉及的信息传输方法可以包括步骤S2201～步骤S2209中的至少一者。例如，步骤S2203可以作为独立实施例来实施，步骤S2201+S2202可以作为独立实施例来实施，步骤S2201至S2203可以作为独立实施例来实施，步骤S2204可以作为独立实施例来实施，步骤S2205可以作为独立实施例来实施，步骤S2205+步骤S2206可以作为独立实施例来实施，步骤S2205+步骤S2207+步骤S2208+步骤S2209可以作为独立实施例来实施，但不限于此。
在一些实施例中，步骤S2201至步骤S2202是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。
在一些实施例中，步骤S2206至步骤S2209是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。
在一些实施例中，步骤S2204是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。例如可以由第一网络设备102-2基于终端位置，调整波束参数，本公开对此不作限定。
在一些实施例中，步骤S2206、步骤S2207至步骤S2209可以择一执行。例如步骤S2206对应集中单元控制终端执行小区切换，步骤S2207至步骤S2209对应终端侧的CHO。
示例性地，可以执行步骤S2206，不执行步骤S2207至步骤S2209，此时可以由第一网络设备102-2为终端101确定小区切换时待接入的目标分布单元。
示例性地，可以执行步骤S2207至步骤S2209，不执行步骤S2206，由终端101自己确定小区切换时待接入的目标分布单元。
其中，可以将信号质量的影响结果作为新的CHO切换条件事件，终端101在执行CHO时，需要考虑该影响结果。
其中，可以复用已有的CHO切换条件事件，终端101在执行CHO时，同样需要考虑该影响结果。
示例性地，已有的CHO切换条件事件可以为RSRP，终端101基于结果指示信息中指示的变化值，结合测量报告中小区的RSRP，计算得到每个小区的一个新的RSRP，基于该新的RSRP，确定执行CHO。
其中，本公开对计算新的RSRP的方式不作限定。
在一些实施例中，步骤S2201至S2209(是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。
上述实施例中，可以由终端向源分布单元上报终端位置信息，源分布单元转发给集中单元，候选分布单元可以基于终端位置调整波束参数，并将结果指示信息提供给集中单元，结果指示信息用于指示终端位置对信号质量的影响的结果，进而由集中单元或终端至少基于该结果指示信息确定终端执行小区切换时待接入的目标分布单元，提高了终端执行小区切换时的可靠性，提高了NTN通信的可用性。
图3A是根据本公开实施例示出的信息传输方法的流程示意图。如图3A所示，本公开实施例涉及信息传输方法，该方法可以由第一网络设备102-1或102-2执行，该方法包括：
步骤S3101，获取终端位置信息。
在一些实施例中，第一网络设备102-1为终端101的源基站，第一网络设备102-1可以从终端101处获取该终端位置信息，但不限于此，也可以接收由其他主体发送的终端位置信息。
在一些实施例中，第一网络设备102-1设备获取按照预定义规则确定的终端位置信息。
在一些实施例中，第一网络设备102-1进行处理从而得到终端位置信息。
在一些实施例中，步骤S3101被省略，第一网络设备102-1自主实现终端位置信息所指示的功能，或第一网络设备102-1从其他网络节点获取UE的位置信息，或上述功能为缺省或默认。
相应地，步骤S3101的可选实现方式可以参见图2A的步骤S2101的可选实现方式、及图2A所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，第一网络设备102-2为终端101的服务基站的集中单元，第一网络设备102-2可以从终端101的服务基站的源分布单元处获取该终端位置信息，但不限于此，也可以接收由其他主体发送的终端位置信息。
在一些实施例中，第一网络设备102-2设备获取按照预定义规则确定的终端位置信息。
在一些实施例中，第一网络设备102-2进行处理从而得到终端位置信息。
在一些实施例中，步骤S3101被省略，第一网络设备102-2自主实现终端位置信息所指示的功能，或上述功能为缺省或默认。
相应地，步骤S3101的可选实现方式可以参见图2B的步骤S2202的可选实现方式、及图2B所涉及的实施例中其他关联部分，此处不再赘述。
步骤S3102，发送终端位置信息。
在一些实施例中，第一网络设备可以向第二网络设备发送终端位置信息。
在一些实施例中，第二网络设备接收终端位置信息。
在一些实施例中，第一网络设备102-1为终端101的源基站，第二网络设备103-1为终端101切换时的候选基站。
相应地，步骤S3102的可选实现方式可以参见图2A的步骤S2102的可选实现方式、及图2A所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，第一网络设备102-2为终端101的服务基站的集中单元，第二网络设备103-2为终端101切换时的服务基站的候选分布单元，即基站内(intra-gNB)切换。
相应地，步骤S3102的可选实现方式可以参见图2B的步骤S2203的可选实现方式、及图2B所涉及的实施例中其他关联部分，此处不再赘述。
步骤S3103，获取结果指示信息。
在一些实施例中，第一网络设备获取第二网络设备发送的结果指示信息，但不限于此，也可以接收由其他主体发送的结果指示信息。
在一些实施例中，第一网络设备获取由协议规定的结果指示信息。
在一些实施例中，第一网络设备进行处理从而得到结果指示信息。
在一些实施例中，步骤S3103被省略，第一网络设备自主实现结果指示信息所指示的功能，或第一网络设备从其他节点获取该结果指示信息，或上述功能为缺省或默认。
在一些实施例中，第一网络设备102-1为终端101的源基站，第二网络设备103-1为终端101切换时的候选基站。
相应地，步骤S3103的可选实现方式可以参见图2A的步骤S2104的可选实现方式、及图2A所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，第一网络设备102-2为终端101切换时的服务基站的集中单元，第二网络设备103-2为终端101切换时的服务基站的候选分布单元。
相应地，步骤S3103的可选实现方式可以参见图2B的步骤S2205的可选实现方式、及图2B所涉及的实施例中其他关联部分，此处不再赘述。
步骤S3104，确定目标网络设备。
在一些实施例中，第一网络设备至少基于结果指示信息，确定目标基站或目标分布单元。
在一些实施例中，第一网络设备102-1为终端101的源基站，第二网络设备103-1为终端101切换时的候选基站。此时，第一网络设备102-1至少基于结果指示信息，确定终端101执行小区切换时待接入的目标基站。
相应地，步骤S3104的可选实现方式可以参见图2A的步骤S2105的可选实现方式、及图2A所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，第一网络设备102-2为终端101的服务基站的集中单元，第二网络设备103-2为终端101切换时的服务基站的候选分布单元。此时，第一网络设备102-1至少基于结果指示信息，确定终端101执行小区切换时待接入的目标分布单元。
相应地，步骤S3104的可选实现方式可以参见图2B的步骤S2206的可选实现方式、及图2B所涉及的实施例中其他关联部分，此处不再赘述。
步骤S3105，发送结果指示信息。
在一些实施例中，第一网络设备102-1为终端101的源基站，第一网络设备102-1可以向终端101发送该结果指示信息。
相应地，步骤S3105的可选实现方式可以参见图2A的步骤S2106的可选实现方式、及图2A所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，第一网络设备102-2为终端101的服务基站的集中单元，第一网络设备102-2可以向终端101的源分布单元发送该结果指示信息。
在一些实施例中，源分布单元接收到该结果指示信息后可以转发给终端101。
相应地，步骤S3105的可选实现方式可以参见图2B的步骤S2207的可选实现方式、及图2B所涉及的实施例中其他关联部分，此处不再赘述。
本公开实施例所涉及的通信方法可以包括步骤S3101～步骤S3105中的至少一者。例如，步骤S3101可以作为独立实施例来实施，步骤S3102可以作为独立实施例来实施，步骤S3101～步骤S3102可以作为独立实施例来实施，步骤S3103可以作为独立实施例来实施，步骤S3104可以作为独立实施例来实施，步骤S3105可以作为独立实施例来实施，但不限于此。
在一些实施例中，步骤S3101是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。
在一些实施例中，步骤S3102是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。例如，第一网络设备为终端101的集中单元时，可以由第一网络设备基于终端位置调整波束参数，从而确定结果指示信息。此时第一网络设备无需发送终端位置信息。
在一些实施例中，步骤S3104、步骤S3105可以择一执行。例如，步骤S3104对应第一网络设备控制终端执行小区切换，步骤S3105对应CHO。
示例性地，可以执行步骤S3104不执行步骤S3105，或者执行步骤S3105不执行步骤S3104。
上述实施例中，第一网络设备可以将终端位置信息提供给第二网络设备，提高了终端执行小区切换时的可靠性，提高了NTN通信的可用性。
图3B是根据本公开实施例示出的信息传输方法的流程示意图。如图3B所示，本公开实施例涉及信息传输方法，该方法可以由第二网络设备103-1或103-2执行，该方法包括：
步骤S3201，获取终端位置信息。
在一些实施例中，第二网络设备103-1为终端101切换时的候选基站，第二网络设备102-1可以从第一网络设备102-1，例如源基站处获取该终端位置信息，但不限于此，也可以接收由其他主体发送的终端位置信息。
在一些实施例中，第二网络设备103-1设备获取按照预定义规则确定的终端位置信息。
在一些实施例中，第二网络设备103-1进行处理从而得到终端位置信息。
在一些实施例中，步骤S3201被省略，或第二网络设备103-1自主实现终端位置信息所指示的功能，或上述功能为缺省或默认。
相应地，步骤S3201的可选实现方式可以参见图2A的步骤S2102的可选实现方式、及图2A所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，第二网络设备103-2为终端101切换时的服务基站的候选分布单元，第二网络设备103-2可以从第一网络设备102-2，例如终端101的服务基站的集中单元处获取该终端位置信息，但不限于此，也可以接收由其他主体发送的终端位置信息。
在一些实施例中，第二网络设备103-2设备获取按照预定义规则确定的终端位置信息。
在一些实施例中，第二网络设备103-2进行处理从而得到终端位置信息。
在一些实施例中，步骤S3201被省略，第二网络设备103-2自主实现终端位置信息所指示的功能，或上述功能为缺省或默认。
相应地，步骤S3201的可选实现方式可以参见图2B的步骤S2203的可选实现方式、及图2B所涉及的实施例中其他关联部分，此处不再赘述。
步骤S3202，调整波束参数。
在一些实施例中，第二网络设备基于终端位置调整波束参数。
在一些实施例中，第二网络设备103-1为终端101切换时的候选基站，步骤S3202的可选实现方式可以参见图2A的步骤S2103的可选实现方式、及图2A所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，第二网络设备103-2为终端101切换时的服务基站的候选分布单元，步骤S3202的可选实现方式可以参见图2B的步骤S2204的可选实现方式、及图2B所涉及的实施例中其他关联部分，此处不再赘述。
步骤S3203，发送结果指示信息。
在一些实施例中，第二网络设备向第一网络设备发送结果指示信息。
在一些实施例中，第二网络设备103-1为终端101切换时的候选基站，步骤S3203的可选实现方式可以参见图2A的步骤S2104的可选实现方式、及图2A所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，第二网络设备103-2为终端101切换时的服务基站的候选分布单元，步骤S3203的可选实现方式可以参见图2B的步骤S2205的可选实现方式、及图2B所涉及的实施例中其他关联部分，此处不再赘述。
本公开实施例所涉及的通信方法可以包括步骤S3201～步骤S3203中的至少一者。例如，步骤S3201可以作为独立实施例来实施，步骤S3202可以作为独立实施例来实施，步骤S3201～步骤S3202可以作为独立实施例来实施，步骤S3203可以作为独立实施例来实施，但不限于此。
在一些实施例中，步骤S3201+步骤S3202是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。例如，当第一网络设备基于终端位置调整波束参数的情况下，步骤S3201+步骤S3202可以不执行。
在一些实施例中，步骤S3203是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。例如，当第一网络设备基于终端位置调整波束参数确定结果指示信息的情况下，步骤S3203可以不执行。
上述实施例中，第二网络设备可以获取终端位置信息，基于终端位置调整波束参数，将所得到的结果指示信息发送给第一网络设备，提高了终端执行小区切换时的可靠性，提高了NTN通信的可用性。
图3C是根据本公开实施例示出的信息传输方法的流程示意图。如图3C所示，本公开实施例涉及信息传输方法，该方法可以由终端101执行，该方法包括：
步骤S3301，上报终端位置信息。
在一些可选实施例中，终端101可以向第一网络设备102-1，例如源基站上报终端位置信息。
相应地，步骤S3301的可选实现方式可以参见图2A的步骤S2101的可选实现方式、及图2A所涉及的实施例中其他关联部分，此处不再赘述。
在一些可选实施例中，终端101可以向源分布单元上报终端位置信息。
相应地，步骤S3301的可选实现方式可以参见图2B的步骤S2201的可选实现方式、及图2B所涉及的实施例中其他关联部分，此处不再赘述。
步骤S3302，获取结果指示信息。
在一些实施例中，终端101接收第一网络设备102-1，例如源基站发送的结果指示信息。
相应地，步骤S3302的可选实现方式可以参见图2A的步骤S2106的可选实现方式、及图2A所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，终端101接收源分布单元发送的结果指示信息。
相应地，步骤S3302的可选实现方式可以参见图2B的步骤S2208的可选实现方式、及图2B所涉及的实施例中其他关联部分，此处不再赘述。
步骤S3303，确定目标网络设备。
在一些实施例中，终端101至少基于结果指示信息，确定目标基站。
相应地，步骤S3303的可选实现方式可以参见图2A的步骤S2107的可选实现方式、及图2A所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，终端101至少基于结果指示信息，确定目标分布单元。
相应地，步骤S3303的可选实现方式可以参见图2B的步骤S2209的可选实现方式、及图2B所涉及的实施例中其他关联部分，此处不再赘述。
本公开实施例所涉及的通信方法可以包括步骤S3301～步骤S3303中的至少一者。例如，步骤S3301可以作为独立实施例来实施，步骤S3302可以作为独立实施例来实施，步骤S3302～步骤S3303可以作为独立实施例来实施，但不限于此。
在一些实施例中，步骤S3301是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。
在一些实施例中，步骤S3302至步骤S3303是可选的，在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。例如，由第一网络设备确定目标基站或目标分布单元，并控制终端101直接执行小区切换的情况下，步骤S3302至步骤S3303可以不执行。
在终端执行CHO时，可以执行步骤S3302至步骤S3303。
上述实施例中，终端至少可以基于结果指示信息确定执行小区切换时待接入的目标网络设备，提高了终端执行小区切换时的可靠性，提高了NTN通信的可用性。
下面对本公开实施例提供的上述方案进一步举例说明如下。
本公开实施例中，为了实现上下行信号质量覆盖增强，在终端执行小区切换时，候选基站或候选分布单元可以根据终端位置信息，调整波束参数，确定信号质量的影响结果。源基站、集中单元或终端将信号质量的影响结果作为一个确定目标基站或目标分布单元的选择条件，确保终端切换至信号质量更好的目标基站或目标分布单元，提高终端执行小区切换时的可靠性，实现了上下行信号质量的覆盖增强，提高了NTN通信的可用性。
本公开实施例中，在跨基站的小区切换场景下，对Xn接口和RRC信令的影响如下：
对Xn接口的影响：源基站在向候选基站发送切换请求消息时，源基站同时将终端位置信息发送给候选基站，候选基站根据终端位置调整波束参数，确定结果指示信息，该结果指示信息用于指示基于所述终端位置调整波束参数后确定的信号质量的影响结果。
候选基站在给源基站发送切换响应消息时，同时发送结果指示信息。
示例性地，如果对信号质量无影响，该IE的比特值可以为0，如果对信号质量有影响，该IE的比特值可以为1。
对RRC消息的影响：源基站向终端发送RRCReconfiguration消息时，同时发送来自候选基站的结果指示信息，结果指示信息用于指示终端位置对信号质量的影响的结果，作为终端确定目标基站的条件，即将候选基站调整波束参数后的信号质量变化作为终端选择目标基站的条件之一。
在本公开实施例中，可以采用以下任一种方式确定终端执行小区切换时待接入的目标基站：
方式一、由源基站确定目标基站后，控制终端切换至目标基站。
示例性地，源基站通过Xn接口接收候选基站发送的结果指示信息，至少基于该结果指示信息确定目标基站。
方式二、由终端确定目标基站后切换至目标基站。
示例性地，源基站接收到候选基站发送的结果指示信息后，通过RRC消息，例如RRCReconfiguration消息发送给终端。终端至少基于上述结果指示信息确定目标基站。
对上述图1D的CHO流程进行改进，参照图4A所示，包括以下步骤：
步骤S4100，源基站内终端上下文包含有关漫游和访问限制信息，这些信息在连接建立或最后一次TA更新时由核心网设备，例如AMF提供。
步骤S4101，源基站配置终端测量过程，终端根据测量配置进行上报。
示例性地，终端可以向源基站上报终端位置信息。
步骤S4102，源基站根据终端上报的测量报告决定终端需要执行小区切换。
步骤S4103，源基站向一个或多个候选基站发送切换请求消息，切换请求消息中包括终端位置信息。
步骤S4104，准入控制可由候选基站执行。
如果切片信息被发送到候选基站，则应执行切片感知准入控制。如果PDU会话与不受支持的切片相关联，则候选基站应拒绝此类PDU会话。候选基站基于终端位置调整波束参数，确定结果指示信息，该结果指示信息用于指示终端位置对信号质量的影响的结果。
步骤S4105，候选基站向源基站发送包含候选小区配置的切换响应消息，切换响应消息中包括结果指示信息。
示例性地，若候选基站确定对信号质量无影响，则该结果指示信息所在IE的比特值可以设置为“0”，若候选基站确定对信号质量有影响，则该结果指示信息所在IE的比特值可以设置为“1”。
步骤S4106，源基站向终端发送RRCReconfiguration消息。
该消息中包含候选小区的配置和CHO执行条件，以及结果指示信息。
步骤S4107，终端向源基站发送RRCReconfigurationComplete消息。
步骤S4107-a，如果应用了早期数据转发，则源基站可以发送早期状态传输消息给候选基站。
步骤S4108，终端在接收到上述配置后保持与源基站的连接，并开始评估候选小区的CHO执行条件。
终端根据CHO执行条件和结果指示信息确定目标基站。如果至少一个候选小区满足相应的CHO执行条件，且其对应的结果指示信息符合预设需求(例如对信号质量无影响、提高了信号质量等)，则终端与源基站分离，为该选定的候选小区应用存储的相应配置，同步到该候选小区，并通过发送RRCReconfigurationComplete消息来完成RRC切换过程目标基站。终端在成功完成RRC切换过程后释放存储的CHO配置。
步骤S4108-a，目标基站向源基站发送HANDOVER SUCCESS消息，通知源基站该终端已经成功接入目标基站。
步骤S4108-b，作为回报，源基站发送SN STATUS TRANSFER消息给目标基站。
步骤S4108-c，源基站向其他候选基站(如果有其他候选基站)发送切换关闭(HANDOVER CANCEL)消息，以取消终端的CHO。
本公开实施例中，在跨分布单元的小区切换场景下，对Xn接口和RRC信令的影响如下：
实现方式一、由分布单元(分布单元部署在卫星上)调整波束参数。
对F1接口的影响：集中单元向候选分布单元发送UE CONTEXT SETUP REQUEST消息时，同时发送终端位置信息，候选分布单元调整波束参数确定结果指示信息，该结果指示信息用于指示所述终端位置对信号质量的影响结果。候选分布单元使用UE CONTEXT SETUP RESPONSE消息响应集中单元，该消息中包括结果指示信息。
对RRC信令的影响：源分布单元通过RRCReconfiguration消息将结果指示信息转发给终端，作为终端确定目标分布单元的条件，即将候选分布单元调整波束参数后所确定的信号质量的影响结果，作为终端选择目标分布单元的条件之一。
实现方式二、由集中单元调整波束参数。
对F1接口的影响：集中单元基于终端位置调整波束参数，确定结果指示信息，该结果指示信息用于指示终端位置对信号质量的影响的结果。集中单元向源分布单元发送DL RRC MESSAGE TRANSFER消息，其中包括生成的RRCReconfiguration消息以及结果指示信息。
对RRC信令的影响：源分布单元将收到的RRCReconfiguration消息转发给终端，其中包括结果指示信息，终端至少基于结果指示信息，确定目标分布单元。即将候选分布单元调整波束参数后所确定的信号质量的影响结果，作为终端选择目标分布单元的条件之一。
在本公开实施例中，可以采用以下任一种方式确定终端执行小区切换时待接入的目标分布单元：
方式一、由集中单元至少基于结果指示信息，确定目标分布单元。
示例性地，集中单元基于候选分布单元提供的结果指示信息，确定目标分布单元后，控制终端接入目标分布单元。
示例性地，集中单元基于终端位置确定结果指示信息后，至少基于结果指示信息确定目标分布单元，并控制终端接入目标分布单元。
方式二、集中单元将结果指示信息提供给源分布单元，源分布单元转发给终端，由终端确定目标分布单元。
对上述图1E的CHO流程进行改进，参照图4B所示，包括以下步骤：
步骤S4201，终端给源分布单元发送测量报告。终端可以上报终端位置信息给源分布单元。
步骤S4202，源分布单元向集中单元发送UL RRC MESSAGE TRANSFER消息，其中可以包括测量报告和终端位置信息。
步骤S4203，集中单元向候选分布单元发送UE CONTEXT SETUP REQUEST消息以创建终端上下文并设置一个或多个数据承载。
UE CONTEXT SETUP REQUEST消息针对每个候选分布单元发送，并且包括用于条件切换的切换准备信息(HandoverPreparationInformation)或用于更改条件主辅小区的半静态配置信息。
示例性地，该UE CONTEXT SETUP REQUEST消息中包括终端位置信息。
步骤S4204，候选分布单元使用UE CONTEXT SETUP RESPONSE消息响应集中单元。
UE CONTEXT SETUP RESPONSE消息中包括从集中单元处请求的目标小区标识。
示例性地，UE CONTEXT SETUP RESPONSE消息中包括结果指示信息。
步骤S4205，集中单元向源分布单元发送DL RRC MESSAGE TRANSFER消息，其中包括生成的RRCReconfiguration消息。
示例性地，集中单元可以接收候选分布单元发送的结果指示信息。
示例性地，集中单元基于终端位置调整波束参数从而确定结果指示信息。
步骤S4206，源分布单元将RRCReconfiguration消息和结果指示信息转发给终端。
步骤S4207，终端用RRCReconfigurationComplete消息响应源分布单元。
步骤S4208，源分布单元通过UL RRC MESSAGE TRANSFER消息转发RRCReconfigurationComplete消息给集中单元。
步骤S4209，触发条件切换或条件PSCell改变的执行条件被满足，且结果指示信息指示的内容符合预设需求。
步骤S4210，终端与目标分布单元之间执行随机接入过程。
步骤S4211，终端用RRCReconfigurationComplete消息响应目标分布单元。
终端向目标分布单元发送RRCReconfigurationComplete消息。
步骤S4212，目标分布单元向集中单元发送UL RRC MESSAGE TRANSFER消息。
该消息中包括RRCReconfigurationComplete消息。
步骤S4213，集中单元向源分布单元发送UE CONTEXT MODIFICATION REQUEST消息，指示停止终端的数据传输。
源分布单元还发送下行链路数据传输状态帧以通知集中单元下行链路数据未成功传输给终端。
步骤S4214，源分布单元用UE CONTEXT MODIFICATION RESPONSE消息响应集中单元。
步骤S4215，集中单元向源分布单元发送UE CONTEXT RELEASE COMMAND消息。
步骤S4216，源分布单元释放终端上下文并用UE CONTEXT RELEASE COMPLETE消息响应集中单元。
上述实施例中，通过调整波束参数，确定结果指示信息，提高了终端执行小区切换的可靠性，实现了上下行信号质量的覆盖增强。
本公开实施例还提出用于实现以上任一方法的装置，例如，提出一装置，上述装置包括用以实现以上任一方法中终端所执行的各步骤的单元或模块。再如，还提出另一装置，包括用以实现以上任一方法中网络设备(例如接入网设备等)所执行的各步骤的单元或模块。
应理解以上装置中各单元或模块的划分仅是一种逻辑功能的划分，在实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。此外，装置中的单元或模块可以以处理器调用软件的形式实现：例如装置包括处理器，处理器与存储器连接，存储器中存储有指令，处理器调用存储器中存储的指令，以实现以上任一方法或实现上述装置各单元或模块的功能，其中处理器例如为通用处理器，例如中央处理单元(Central Processing Unit，CPU)或微处理器，存储器为装置内的存储器或装置外的存储器。或者，装置中的单元或模块可以以硬件电路的形式实现，可以通过对硬件电路的设计实现部分或全部单元或模块的功能，上述硬件电路可以理解为一个或多个 处理器；例如，在一种实现中，上述硬件电路为专用集成电路(application-specific integrated circuit，ASIC)，通过对电路内元件逻辑关系的设计，实现以上部分或全部单元或模块的功能；再如，在另一种实现中，上述硬件电路为可以通过可编程逻辑器件(programmable logic device，PLD)实现，以现场可编程门阵列(Field Programmable Gate Array，FPGA)为例，其可以包括大量逻辑门电路，通过配置文件来配置逻辑门电路之间的连接关系，从而实现以上部分或全部单元或模块的功能。以上装置的所有单元或模块可以全部通过处理器调用软件的形式实现，或全部通过硬件电路的形式实现，或部分通过处理器调用软件的形式实现，剩余部分通过硬件电路的形式实现。
在本公开实施例中，处理器是具有信号处理能力的电路，在一种实现中，处理器可以是具有指令读取与运行能力的电路，例如中央处理单元(Central Processing Unit，CPU)、微处理器、图形处理器(graphics processing unit，GPU)(可以理解为微处理器)、或数字信号处理器(digital signal processor，DSP)等；在另一种实现中，处理器可以通过硬件电路的逻辑关系实现一定功能，上述硬件电路的逻辑关系是固定的或可以重构的，例如处理器为专用集成电路(application-specific integrated circuit，ASIC)或可编程逻辑器件(programmable logic device，PLD)实现的硬件电路,例如FPGA。在可重构的硬件电路中，处理器加载配置文档，实现硬件电路配置的过程，可以理解为处理器加载指令，以实现以上部分或全部单元或模块的功能的过程。此外，还可以是针对人工智能设计的硬件电路，其可以理解为ASIC，例如神经网络处理单元(Neural Network Processing Unit，NPU)、张量处理单元(Tensor Processing Unit，TPU)、深度学习处理单元(Deep learning Processing Unit，DPU)等。
图5A是本公开实施例提出的第一网络设备的结构示意图。如图5A所示，第一网络设备5100可以包括：收发模块5101。
在一些实施例中，上述收发模块5101被配置为第一网络设备5100向第二网络设备发送终端位置信息，所述终端位置信息用于终端执行小区切换。
在一些实施例中，第一网络设备5100可以包括处理模块5102(图5A中未示出)，收发模块5102被配置为至少基于结果指示信息，确定所述终端执行小区切换时待接入的目标基站或服务基站的目标分布单元。
可选地，上述收发模块5101用于执行以上任一方法中第一网络设备5100执行的发送和/或接收等通信步骤(例如步骤S2101、步骤S2102、步骤S2104、步骤S2106、步骤S2202、步骤S2203、步骤S2205、步骤S2207，但不限于此)中的至少一者，此处不再赘述。
可选地，上述处理模块5102用于执行以上任一方法中第一网络设备101执行的其他步骤(例如步骤S2105、步骤S2206，但不限于此)中的至少一者，此处不再赘述。
图5B是本公开实施例提出的第二网络设备的结构示意图。如图5B所示，第二网络设备5200可以包括：收发模块5201。
在一些实施例中，上述收发模块5201被配置为第二网络设备5200接收第一网络设备发送的终端位置信息，所述终端位置信息用于终端执行小区切换。
在一些实施例中，第二网络设备5200可以包括处理模块5202(图5B中未示出)，处理模块5202被配置为基于终端位置，调整波束参数。
可选地，上述收发模块5201用于执行以上任一方法中第二网络设备5200可执行的发送和/或接收等通信步骤(例如步骤S2102、步骤S2104、步骤S2203、步骤S2205，但不限于此)中的至少一者，此处不再赘述。
可选地，上述处理模块5202用于执行以上任一方法中第二网络设备5200可执行的其他步骤(例如步骤S2103、步骤S2204，但不限于此)中的至少一者，此处不再赘述。
图5C是本公开实施例提出的终端的结构示意图。如图5C所示，终端5300可以包括：收发模块5301、处理模块5302。
在一些实施例中，上述收发模块5301被配置为终端5300接收结果指示信息，所述结果指示信息用于指示终端位置对信号质量的影响的结果。
在一些实施例中，处理模块5302被配置为至少基于所述结果指示信息，确定执行小区切换时待接入的目标基站或服务基站的目标分布单元。
可选地，上述收发模块5301用于执行以上任一方法中终端5300可执行的发送和/或接收等通信步骤(例如步骤S2101、步骤S2106、步骤S2201、步骤S2208，但不限于此)中的至少一者，此处不再赘述。
可选地，上述处理模块5202用于执行以上任一方法中第二网络设备5200可执行的其他步骤(例如步骤S2107、步骤S2209，但不限于此)中的至少一者，此处不再赘述。
在一些实施例中，收发模块可以包括发送模块和/或接收模块，发送模块和接收模块可以是分 离的，也可以集成在一起。可选地，收发模块可以与收发器相互替换。
在一些实施例中，处理模块可以是一个模块，也可以包括多个子模块。可选地，上述多个子模块分别执行处理模块所需执行的全部或部分步骤。可选地，处理模块可以与处理器相互替换。
图6A是本公开实施例提出的通信设备6100的结构示意图。通信设备6100可以是网络设备(例如第一网络设备、第二网络设备等)，也可以是终端(例如用户设备等)，也可以是支持核心网设备实现以上任一方法的芯片、芯片系统、或处理器等，还可以是支持终端实现以上任一方法的芯片、芯片系统、或处理器等。通信设备6100可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
如图6A所示，通信设备6100包括一个或多个处理器6101。处理器6101可以是通用处理器或者专用处理器等，例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行程序，处理程序的数据。通信设备6100用于执行以上任一方法。
在一些实施例中，通信设备6100还包括用于存储指令的一个或多个存储器6102。可选地，全部或部分存储器6102也可以处于通信设备6100之外。
在一些实施例中，通信设备6100还包括一个或多个收发器6103。在通信设备6100包括一个或多个收发器6103时，收发器6103执行上述方法中的发送和/或接收等通信步骤(例如步骤S2101，但不限于此)中的至少一者，处理器6101执行其他步骤(步骤S2102、步骤S2103，但不限于此)中的至少一者。
在一些实施例中，收发器可以包括接收器和/或发送器，接收器和发送器可以是分离的，也可以集成在一起。可选地，收发器、收发单元、收发机、收发电路等术语可以相互替换，发送器、发送单元、发送机、发送电路等术语可以相互替换，接收器、接收单元、接收机、接收电路等术语可以相互替换。
在一些实施例中，通信设备6100可以包括一个或多个接口电路6104。可选地，接口电路6104与存储器6102连接，接口电路6104可用于从存储器6102或其他装置接收信号，可用于向存储器6102或其他装置发送信号。例如，接口电路6104可读取存储器6102中存储的指令，并将该指令发送给处理器6101。
以上实施例描述中的通信设备6100可以是网络设备或者终端，但本公开中描述的通信设备6100的范围并不限于此，通信设备6100的结构可以不受图6A的限制。通信设备可以是独立的设备或者可以是较大设备的一部分。例如所述通信设备可以是：1)独立的集成电路IC，或芯片，或，芯片系统或子系统；(2)具有一个或多个IC的集合，可选地，上述IC集合也可以包括用于存储数据，程序的存储部件；(3)ASIC，例如调制解调器(Modem)；(4)可嵌入在其他设备内的模块；(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；(6)其他等等。
图6B是本公开实施例提出的芯片6200的结构示意图。对于通信设备6200可以是芯片或芯片系统的情况，可以参见图6B所示的芯片6200的结构示意图，但不限于此。
芯片6200包括一个或多个处理器6201，芯片6200用于执行以上任一方法。
在一些实施例中，芯片6200还包括一个或多个接口电路6202。可选地，接口电路6202与存储器6203连接，接口电路6202可以用于从存储器6203或其他装置接收信号，接口电路6202可用于向存储器6203或其他装置发送信号。例如，接口电路6202可读取存储器6203中存储的指令，并将该指令发送给处理器6201。
在一些实施例中，接口电路6202执行上述方法中的发送和/或接收等通信步骤(例如步骤S2101，但不限于此)中的至少一者，处理器6201执行其他步骤(步骤S2102、步骤S2103，但不限于此)中的至少一者。
在一些实施例中，接口电路、接口、收发管脚、收发器等术语可以相互替换。
在一些实施例中，芯片6200还包括用于存储指令的一个或多个存储器6203。可选地，全部或部分存储器6203可以处于芯片6200之外。
本公开还提出存储介质，上述存储介质上存储有指令，当上述指令在通信设备6100上运行时，使得通信设备6100执行以上任一方法。可选地，上述存储介质是电子存储介质。可选地，上述存储介质是计算机可读存储介质，但不限于此，其也可以是其他装置可读的存储介质。可选地，上述存储介质可以是非暂时性(non-transitory)存储介质，但不限于此，其也可以是暂时性存储介质。
本公开还提出程序产品，上述程序产品被通信设备6100执行时，使得通信设备6100执行以 上任一方法。可选地，上述程序产品是计算机程序产品。
本公开还提出计算机程序，当其在计算机上运行时，使得计算机执行以上任一方法。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或者惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (36)

  1. 一种信息传输方法，其特征在于，包括：
    第一网络设备向第二网络设备发送终端位置信息，所述终端位置信息用于终端执行小区切换。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备接收所述第二网络设备发送的结果指示信息，所述结果指示信息用于指示终端位置对信号质量的影响的结果。
  3. 根据权利要求2所述的方法，其特征在于，所述结果指示信息用于指示所述第二网络设备基于所述终端位置调整波束参数，以确定对信号质量的所述影响的结果。
  4. 根据权利要求3所述的方法，其特征在于，所述波束参数包括以下至少一项：
    波束的指向参数；其中，所述指向参数包括以下至少一项：波束宽度参数；波束中心点位置的指向参数；
    波束的形状参数。
  5. 根据权利要求2-4任一项所述的方法，其特征在于，信号包括以下至少一项：
    所述第二网络设备所接收的来自所述终端的上行信号；
    所述终端所接收的来自所述第二网络设备的下行信号。
  6. 根据权利要求2-5任一项所述的方法，其特征在于，所述结果指示信息用于指示以下任一项：
    所述终端位置不会影响所述信号质量；
    所述终端位置会影响所述信号质量；
    所述终端位置会提高所述信号质量；
    所述终端位置会降低所述信号质量。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，所述第一网络设备向第二网络设备发送终端位置信息，包括以下任一项：
    所述第一网络设备向所述第二网络设备发送切换请求消息，所述切换请求消息中包括所述终端位置信息；
    所述第一网络设备向所述第二网络设备发送终端上下文建立请求消息，所述终端上下文建立请求消息中包括所述终端位置信息。
  8. 根据权利要求2-7任一项所述的方法，其特征在于，所述第一网络设备接收所述第二网络设备发送的结果指示信息，包括以下任一项：
    所述第一网络设备接收所述第二网络设备发送的切换响应消息，所述切换响应消息中包括所述结果指示信息；
    所述第一网络设备接收所述第二网络设备发送的终端上下文建立响应消息，所述终端上下文建立响应中包括所述结果指示信息。
  9. 根据权利要求1-8任一项所述的方法，其特征在于，所述第一网络设备为终端的源基站，所述第二网络设备为所述终端的候选基站；或者
    所述第一网络设备为终端的服务基站的集中单元，所述第二网络设备为所述服务基站的候选分布单元。
  10. 根据权利要求1-9任一项所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备至少基于结果指示信息，确定所述终端执行小区切换时待接入的目标基站或服务基站的目标分布单元。
  11. 根据权利要求1-10任一项所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备向所述终端或所述终端的服务基站的源分布单元发送结果指示信息，所述结果指示信息用于所述终端确定执行小区切换时待接入的目标基站或服务基站的目标分布单元。
  12. 根据权利要求1-11任一项所述的方法，其特征在于，所述方法还包括以下任一项：
    所述第一网络设备接收所述终端上报的所述终端位置信息；
    所述第一网络设备接收所述终端的服务基站的源分布单元转发的所述终端位置信息，所述终端位置信息是所述终端上报给所述源分布单元的。
  13. 一种信息传输方法，其特征在于，包括：
    第二网络设备接收第一网络设备发送的终端位置信息，所述终端位置信息用于终端执行小区切换。
  14. 根据权利要求13所述的方法，其特征在于，所述方法还包括：
    所述第二网络设备基于终端位置，调整波束参数。
  15. 根据权利要求13或14所述的方法，其特征在于，所述方法还包括：
    所述第二网络设备向所述第一网络设备发送结果指示信息，所述结果指示信息用于指示终端位置对信号质量的影响的结果。
  16. 根据权利要求15所述的方法，其特征在于，所述结果指示信息用于指示所述第二网络设备基于所述终端位置调整波束参数，以确定对信号质量的所述影响结果。
  17. 根据权利要求14-16任一项所述的方法，其特征在于，波束参数包括以下至少一项：
    波束的指向参数；其中，所述指向参数包括以下至少一项：波束宽度参数；波束中心点位置的指向参数；
    波束的形状参数。
  18. 根据权利要求15-17任一项所述的方法，其特征在于，信号包括以下至少一项：
    所述第二网络设备所接收的来自所述终端的上行信号；
    所述终端所接收的来自所述第二网络设备的下行信号。
  19. 根据权利要求15-18任一项所述的方法，其特征在于，所述结果指示信息用于指示以下任一项：
    所述终端位置不会影响所述信号质量；
    所述终端位置会影响所述信号质量；
    所述终端位置会提高所述信号质量；
    所述终端位置会降低所述信号质量。
  20. 根据权利要求13-19任一项所述的方法，其特征在于，所述第二网络设备接收第一网络设备发送的终端位置信息，包括以下任一项：
    所述第二网络设备接收所述第一网络设备发送的切换请求消息，所述切换请求消息中包括所述终端位置信息；
    所述第二网络设备接收所述第一网络设备发送的终端上下文建立请求消息，所述终端上下文建立请求消息中包括所述终端位置信息。
  21. 根据权利要求15-20任一项所述的方法，其特征在于，所述第二网络设备向所述第一网络设备发送结果指示信息，包括以下任一项：
    所述第二网络设备向所述第一网络设备发送切换响应消息，所述切换响应消息中包括所述结果指示信息；
    所述第二网络设备向所述第一网络设备发送终端上下文建立响应消息，所述终端上下文建立响应中包括所述结果指示信息。
  22. 根据权利要求13-21任一项所述的方法，其特征在于，所述第一网络设备为所述终端的源基站，所述第二网络设备为所述终端的候选基站；或者
    所述第一网络设备为终端的服务基站的集中单元，所述第二网络设备为所述服务基站的候选分布单元。
  23. 一种信息传输方法，其特征在于，包括：
    终端接收结果指示信息，所述结果指示信息用于指示终端位置对信号质量的影响的结果；
    所述终端至少基于所述结果指示信息，确定执行小区切换时待接入的目标基站或服务基站的目标分布单元。
  24. 根据权利要求23所述的方法，其特征在于，所述结果指示信息用于指示所述第二网络设备基于所述终端位置调整波束参数，以确定对信号质量的所述影响的结果。
  25. 根据权利要求24所述的方法，其特征在于，所述波束参数包括以下至少一项：
    波束的指向参数；其中，所述指向参数包括以下至少一项：波束宽度参数；波束中心点位置的指向参数；
    波束的形状参数。
  26. 根据权利要求23-25任一项所述的方法，其特征在于，信号包括以下至少一项：
    所述第二网络设备所接收的来自所述终端的上行信号；
    所述终端所接收的来自所述第二网络设备的下行信号。
  27. 根据权利要求23-26任一项所述的方法，其特征在于，所述结果指示信息用于指示以下任一项：
    所述终端位置不会影响所述信号质量；
    所述终端位置会影响所述信号质量；
    所述终端位置会提高所述信号质量；
    所述终端位置会降低所述信号质量。
  28. 根据权利要求23-27任一项所述的方法，其特征在于，所述方法还包括以下任一项：
    所述终端向源基站上报终端位置信息；或者
    所述终端向服务基站的源分布单元上报终端位置信息，以使得所述源分布单元将所述终端位置信息转发给所述服务基站的集中单元。
  29. 根据权利要求23-28任一项所述的方法，其特征在于，所述第二网络设备为候选基站；或者
    所述第二网络设备为服务基站的候选分布单元。
  30. 一种第一网络设备，其特征在于，包括：
    收发模块，被配置为所述第一网络设备向第二网络设备发送终端位置信息，所述终端位置信息用于终端执行小区切换。
  31. 一种第二网络设备，其特征在于，包括：
    收发模块，被配置为所述第二网络设备接收第一网络设备发送的终端位置信息，所述终端位置信息用于终端执行小区切换。
  32. 一种终端，其特征在于，包括：
    收发模块，被配置为所述终端接收结果指示信息，所述结果指示信息用于指示终端位置对信号质量的影响的结果；
    处理模块，被配置为至少基于所述结果指示信息，确定执行小区切换时待接入的目标基站或服务基站的目标分布单元。
  33. 一种网络设备，其特征在于，包括：
    一个或多个处理器；
    其中，所述网络设备用于执行权利要求1-12或13-22中任一项所述的信息传输方法。
  34. 一种终端，其特征在于，包括：
    一个或多个处理器；
    其中，所述终端用于执行权利要求23-29中任一项所述的信息传输行为的方法。
  35. 一种通信系统，其特征在于，包括第一网络设备、第二网络设备、终端，其中，所述第一网络设备被配置为实现权利要求1-12中任一项所述的信息传输方法，所述第二网络设备被配置为实现权利要求13-22中任一项所述的信息传输方法，所述终端被配置为实现权利要求23-29中任一项所述的信息传输方法。
  36. 一种存储介质，所述存储介质存储有指令，其特征在于，当所述指令在通信设备上运行时，使得所述通信设备执行如权利要求1-22或23-29中任一项所述的信息传输方法。
PCT/CN2023/107595 2023-07-14 2023-07-14 信息传输方法及装置、存储介质 Pending WO2025015481A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101340704A (zh) * 2007-07-02 2009-01-07 鼎桥通信技术有限公司 一种小区切换判决方法
CN103068010A (zh) * 2012-12-26 2013-04-24 华为技术有限公司 一种目标小区的选择方法及装置
CN110572765A (zh) * 2018-05-17 2019-12-13 大唐移动通信设备有限公司 一种小区切换的方法及系统
WO2022027201A1 (zh) * 2020-08-03 2022-02-10 华为技术有限公司 一种通信方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101340704A (zh) * 2007-07-02 2009-01-07 鼎桥通信技术有限公司 一种小区切换判决方法
CN103068010A (zh) * 2012-12-26 2013-04-24 华为技术有限公司 一种目标小区的选择方法及装置
CN110572765A (zh) * 2018-05-17 2019-12-13 大唐移动通信设备有限公司 一种小区切换的方法及系统
WO2022027201A1 (zh) * 2020-08-03 2022-02-10 华为技术有限公司 一种通信方法及装置

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