Information transmission method and apparatus, communication device, communication system, and storage medium

Abstract

The embodiment of the disclosure provides an information transmission method and device, a communication device, a communication system and a storage medium. A terminal receives first information, wherein the first information is used for determining a service time of a first beam and / or a service time of a second beam, the first beam is a service beam before beam switching of the terminal, and the second beam is a beam to be switched by the terminal. The time accuracy of the operation related to the beam switching is improved, and the continuity of the service is ensured.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to information transmission methods and apparatus, communication equipment, communication systems and storage media. Background Technology

[0002] The emergence of new-generation internet applications such as Augmented Reality (AR) / Virtual Reality (VR) and vehicle-to-vehicle communication has placed higher demands on wireless communication technologies, driving their continuous evolution to meet application needs. Currently, cellular mobile communication technology is in the next generation of technological evolution. A key characteristic of this next-generation technology is its ability to support flexible configuration for various service types. Different service types have different requirements for wireless communication technologies. For example, Enhanced Mobile Broadband (eMBB) primarily requires high bandwidth and high speed; Ultra-reliable and Low Latency Communications (URLLC) primarily requires high reliability and low latency; and Massive Machine Type Communication (mMTC) primarily requires a large number of connections. Therefore, next-generation wireless communication systems need flexible and configurable designs to support the transmission of multiple service types. Summary of the Invention

[0003] As the functionality of terminals increases, their energy consumption increases, resulting in weak battery life.

[0004] This disclosure provides an information transmission method and apparatus, a communication device and a storage medium.

[0005] According to a first aspect of the present disclosure, an information transmission method is provided, wherein the method is executed by a terminal, and the method includes:

[0006] The terminal receives first information, which is used to determine the service time of the first beam and / or the service time of the second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal.

[0007] According to a second aspect of the present disclosure, an information transmission method is provided, wherein the method is performed by an access network device, and the method includes:

[0008] Send first information, the first information being used to determine the service time of the first beam and / or the service time of the second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal.

[0009] According to a third aspect of the present disclosure, an information transmission method is provided, wherein the method is executed by a communication system, the method comprising:

[0010] The access network device sends first information, which is used to enable the terminal to determine the service time of the first beam and / or the service time of the second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal.

[0011] According to a fourth aspect of the present disclosure, an embodiment of the present disclosure provides a terminal, comprising:

[0012] The transceiver module is configured to receive first information, which is used to determine the service time of a first beam and / or the service time of a second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal.

[0013] According to a fifth aspect of the present disclosure, an access network device is provided, comprising:

[0014] The transceiver module is configured to send first information, which is used to determine the service time of a first beam and / or the service time of a second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal.

[0015] According to a sixth aspect of the present disclosure, an embodiment of the present disclosure provides a communication system, wherein the information transmission system includes a terminal and an access network device;

[0016] The terminal is configured to implement the information transmission method described in the first aspect;

[0017] The first network element is configured to implement the information transmission method described in the second aspect.

[0018] According to a seventh aspect of the present disclosure, an embodiment of the present disclosure provides a communication device, wherein the communication device includes:

[0019] One or more processors;

[0020] The processor is used to invoke instructions to cause the communication device to execute the information transmission method described in the first or second aspect.

[0021] According to an eighth aspect of the present disclosure, an embodiment of the present disclosure provides a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the information transmission method described in the first or second aspect.

[0022] The terminal can perform beam switching in a timely manner, improving the timing accuracy of beam switching-related operations and ensuring service continuity.

[0023] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the embodiments of this disclosure. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments of the invention.

[0025] Figure 1a This is a schematic diagram of the architecture of a communication system according to an exemplary embodiment;

[0026] Figure 1b This is a schematic diagram of uplink and downlink timing according to an exemplary embodiment;

[0027] Figure 1c This is a schematic diagram of uplink and downlink timing according to an exemplary embodiment;

[0028] Figure 1d This is a schematic diagram of beam switching according to an exemplary embodiment;

[0029] Figure 1e This is a schematic diagram of beam switching according to an exemplary embodiment;

[0030] Figure 2a This is a flowchart illustrating an information transmission method according to an exemplary embodiment;

[0031] Figure 2b This is a schematic diagram of beam switching according to an exemplary embodiment;

[0032] Figure 3 This is a flowchart illustrating an information transmission method according to an exemplary embodiment;

[0033] Figure 4 This is a flowchart illustrating an information transmission method according to an exemplary embodiment;

[0034] Figure 5 This is a flowchart illustrating an information transmission method according to an exemplary embodiment;

[0035] Figure 6a This is a schematic diagram of the structure of a terminal according to an exemplary embodiment;

[0036] Figure 6b This is a schematic diagram of an access network device structure according to an exemplary embodiment;

[0037] Figure 7a This is a schematic diagram of the structure of a UE according to an exemplary embodiment;

[0038] Figure 7b This is a schematic diagram of the structure of a communication device according to an exemplary embodiment. Detailed Implementation

[0039] This disclosure provides an information transmission method and apparatus, a communication device, a communication system, and a storage medium.

[0040] In a first aspect, embodiments of this disclosure provide an information transmission method, wherein the method is executed by a terminal, and the method includes:

[0041] The terminal receives first information, which is used to determine the service time of the first beam and / or the service time of the second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal.

[0042] In the above embodiments, the terminal can determine the service time of the first beam and / or the service time of the second beam for the terminal to switch beams, so that the terminal can perform beam switching in a timely manner and ensure the continuity of services.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the service time of the first beam includes:

[0044] The end time of service for the first beam;

[0045] The service time of the second beam includes at least one of the following:

[0046] The service start time of the second beam;

[0047] The time window during which the terminal performs beam measurement on the second beam.

[0048] In the above embodiments, the terminal can determine the service end time of the first beam and / or the service start time of the second beam, etc., so that the terminal can perform beam switching in a timely manner, improve the timing accuracy of beam switching related operations, and ensure service continuity.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0050] Determine the service interval duration between the service end time and the service start time.

[0051] In the above embodiments, the terminal can determine the service interval duration during which service cannot be obtained.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0053] When the service interval duration is greater than or equal to the threshold, the terminal is switched to the RRC disconnected state after the service end time, wherein the RRC disconnected state includes at least one of the following: RRC inactive state, RRC idle state.

[0054] In the above embodiments, the terminal determines whether to enter the RRC disconnected state based on the service interval duration, thereby saving the terminal's power.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes at least one of the following:

[0056] Based on the first information, a synchronization operation associated with the second beam is performed;

[0057] Based on the first information, obtain the ephemeris information corresponding to the second beam.

[0058] In the above embodiments, the terminal can determine the service time of the first beam and / or the service time of the second beam for the terminal to perform beam synchronization operation, thereby improving the timing accuracy of beam synchronization operation and ensuring service continuity.

[0059] In conjunction with some embodiments of the first aspect, in some embodiments, the synchronization operation associated with the second beam includes at least one of the following:

[0060] Beam measurements associated with downlink synchronization are performed on the second beam;

[0061] Beam measurement is performed on the second beam to determine the timing adjustment parameters associated with the second beam.

[0062] In the above embodiments, the terminal performs beam measurement and / or determines timing adjustment parameters based on the first information, thereby improving the timing accuracy of beam-related operations and ensuring service continuity.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, the synchronization operation associated with the second beam includes:

[0064] Adjust the uplink timing and / or downlink timing for the second beam according to the synchronization transmission configuration parameters indicated by the access network equipment.

[0065] In the above embodiments, the terminal adjusts the timing based on the first information by synchronously transmitting configuration parameters, thereby improving the timing accuracy of the adjustment and ensuring the continuity of services.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the synchronous transmission configuration parameters include at least one of the following:

[0067] Adjust the indication of the downlink timing;

[0068] The ephemeris information corresponding to the second beam;

[0069] Timing adjustment parameters associated with the second beam;

[0070] The effective time information of the synchronous transmission configuration parameters.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is also used to indicate the synchronization transmission configuration parameters.

[0072] In the above embodiments, the synchronous transmission configuration parameters are indicated by the first information, thereby reducing the load on the terminal that is determined by beam measurement to determine the synchronous transmission configuration parameters.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0074] Based on the first information, beam failure configuration parameters are determined, wherein the beam failure configuration parameters are used to determine whether the first beam or the second beam is available.

[0075] In the above embodiments, beam availability is determined by using the first information to indicate beam failure configuration parameters, thereby improving the accuracy of beam availability determination.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0077] The terminal performs random access within the coverage area of ​​the second beam signal, wherein the random access configuration is indicated by the access network device.

[0078] In the above embodiments, the efficiency of the first information indication is improved by using the first information to indicate the random access configuration.

[0079] In conjunction with some embodiments of the first aspect, in some embodiments, the first beam and the second beam are associated with the same serving cell of the terminal.

[0080] In the above embodiments, the first beam and the second beam are associated with the same serving cell of the terminal. This improves the applicability of the first information.

[0081] Secondly, embodiments of this disclosure provide an information transmission method, wherein the method is executed by an access network device, and the method includes:

[0082] Send first information, the first information being used to determine the service time of the first beam and / or the service time of the second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal.

[0083] In the above embodiments, the access network device sends first information to the terminal, allowing the terminal to determine the service time of the first beam and / or the service time of the second beam, so that the terminal can switch beams in a timely manner and ensure service continuity.

[0084] In conjunction with some embodiments of the second aspect, in some embodiments, the service time of the first beam includes:

[0085] The end time of service for the first beam;

[0086] The service time of the second beam includes at least one of the following:

[0087] The service start time of the second beam;

[0088] The time window during which the terminal performs beam measurement on the second beam.

[0089] In the above embodiments, the first information is provided to the terminal to determine the service end time of the first beam and / or the service start time of the second beam, so that the terminal can perform beam switching in a timely manner, improve the timing accuracy of beam switching related operations, and ensure service continuity.

[0090] In conjunction with some embodiments of the second aspect, in some embodiments, the service end time of the first beam and the service start time of the second beam are used for the terminal to determine the service interval duration between the end of service of the first beam and the start of service of the second beam.

[0091] In the above embodiments, the first information is provided to the terminal to determine the service interval duration during which service cannot be obtained.

[0092] In conjunction with some embodiments of the second aspect, in some embodiments, the service interval duration is used for the terminal to determine whether to switch to the RRC non-connected state after the service end time, wherein the RRC non-connected state includes at least one of the following: RRC inactive state, RRC idle state.

[0093] In the above embodiments, the first information provider terminal determines whether to enter the RRC non-connected state based on the service interval duration, thereby saving the terminal's power.

[0094] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is used by the terminal to perform synchronization operations associated with the second beam;

[0095] The first information is used to determine the ephemeris information corresponding to the second beam.

[0096] In the above embodiments, the first information is provided to the terminal to determine the service time of the first beam and / or the service time of the second beam, so that the terminal can perform beam synchronization operation, improve the timing accuracy of beam synchronization operation, and ensure service continuity.

[0097] In conjunction with some embodiments of the second aspect, in some embodiments, the synchronization operation associated with the second beam includes at least one of the following:

[0098] Beam measurements associated with downlink synchronization are performed on the second beam;

[0099] Beam measurement is performed on the second beam to determine the timing adjustment parameters associated with the second beam.

[0100] In the above embodiments, the first information is provided to the terminal to determine whether to perform beam measurement and / or determine timing adjustment parameters, thereby improving the timing accuracy of beam-related operations and ensuring service continuity.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, the synchronization operation associated with the second beam includes:

[0102] Adjust the uplink timing and / or downlink timing for the second beam according to the synchronization transmission configuration parameters indicated by the access network equipment.

[0103] In the above embodiments, the terminal adjusts the timing based on the first information by synchronously transmitting configuration parameters, thereby improving the timing accuracy of the adjustment and ensuring the continuity of services.

[0104] In conjunction with some embodiments of the second aspect, in some embodiments, the synchronization transmission configuration parameters include at least one of the following:

[0105] Adjust the indication of the downlink timing;

[0106] The ephemeris information corresponding to the second beam;

[0107] Timing adjustment parameters associated with the second beam;

[0108] The effective time information of the synchronous transmission configuration parameters.

[0109] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is also used to indicate the synchronization transmission configuration parameters.

[0110] In the above embodiments, the synchronous transmission configuration parameters are indicated by the first information, thereby reducing the load on the terminal that is determined by beam measurement to determine the synchronous transmission configuration parameters.

[0111] In conjunction with some embodiments of the second aspect, in some embodiments, based on the first information, it is further used to enable the terminal to determine beam failure configuration parameters, wherein the beam failure configuration parameters are used to determine whether the first beam or the second beam is available.

[0112] In the above embodiments, beam availability is determined by using the first information to indicate beam failure configuration parameters, thereby improving the accuracy of beam availability determination.

[0113] In conjunction with some embodiments of the second aspect, in some embodiments, the first information indicates a random access configuration for instructing the terminal to perform random access within the coverage area of ​​the second beam signal.

[0114] In the above embodiments, the efficiency of the first information indication is improved by using the first information to indicate the random access configuration.

[0115] In conjunction with some embodiments of the second aspect, in some embodiments, the first beam and the second beam are associated with the same serving cell of the terminal.

[0116] In the above embodiments, the first beam and the second beam are associated with the same serving cell of the terminal. This improves the applicability of the first information.

[0117] Thirdly, embodiments of this disclosure propose an information transmission method, wherein the method is executed by a communication system, the method comprising:

[0118] The access network device sends first information, which is used to enable the terminal to determine the service time of the first beam and / or the service time of the second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal.

[0119] Fourthly, embodiments of this disclosure provide a terminal, including:

[0120] The transceiver module is configured to receive first information, which is used to determine the service time of a first beam and / or the service time of a second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal.

[0121] In conjunction with some embodiments of the fourth aspect, in some embodiments, the service time of the first beam includes:

[0122] The end time of service for the first beam;

[0123] The service time of the second beam includes at least one of the following:

[0124] The service start time of the second beam;

[0125] The time window during which the terminal performs beam measurement on the second beam.

[0126] In conjunction with some embodiments of the fourth aspect, in some embodiments, the apparatus further includes:

[0127] The processing module is configured to determine the service interval duration between the service end time and the service start time.

[0128] In conjunction with some embodiments of the fourth aspect, in some embodiments, the processing module is configured to switch the terminal to an RRC disconnected state after the service end time when the service interval duration is greater than or equal to a threshold, wherein the RRC disconnected state includes at least one of the following: RRC inactive state, RRC idle state.

[0129] In conjunction with some embodiments of the fourth aspect, in some embodiments, the apparatus further includes:

[0130] The processing module is configured to be at least one of the following:

[0131] Based on the first information, a synchronization operation associated with the second beam is performed;

[0132] Based on the first information, obtain the ephemeris information corresponding to the second beam.

[0133] In conjunction with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured to be at least one of the following:

[0134] Beam measurements associated with downlink synchronization are performed on the second beam;

[0135] Beam measurement is performed on the second beam to determine the timing adjustment parameters associated with the second beam.

[0136] In conjunction with some embodiments of the fourth aspect, in some embodiments, the processing module is specifically configured as follows:

[0137] Adjust the uplink timing and / or downlink timing for the second beam according to the synchronization transmission configuration parameters indicated by the access network equipment.

[0138] In conjunction with some embodiments of the fourth aspect, in some embodiments, the synchronous transmission configuration parameters include at least one of the following:

[0139] Adjust the indication of the downlink timing;

[0140] The ephemeris information corresponding to the second beam;

[0141] Timing adjustment parameters associated with the second beam;

[0142] The effective time information of the synchronous transmission configuration parameters.

[0143] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first information is also used to indicate the synchronization transmission configuration parameters.

[0144] In conjunction with some embodiments of the fourth aspect, in some embodiments, the apparatus further includes:

[0145] The processing module is configured to determine beam failure configuration parameters based on the first information, wherein the beam failure configuration parameters are used to determine whether the first beam or the second beam is available.

[0146] In conjunction with some embodiments of the fourth aspect, in some embodiments, the apparatus further includes:

[0147] The processing module is configured to allow the terminal to perform random access within the coverage area of ​​the second beam signal, wherein the random access configuration is indicated by the access network device.

[0148] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first beam and the second beam are associated with the same serving cell of the terminal.

[0149] Fifthly, embodiments of this disclosure provide an access network device, comprising:

[0150] The transceiver module is configured to send first information, which is used to determine the service time of a first beam and / or the service time of a second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal.

[0151] In conjunction with some embodiments of the fifth aspect, in some embodiments, the service time of the first beam includes:

[0152] The end time of service for the first beam;

[0153] The service time of the second beam includes at least one of the following:

[0154] The service start time of the second beam;

[0155] The time window during which the terminal performs beam measurement on the second beam.

[0156] In conjunction with some embodiments of the fifth aspect, in some embodiments, the service end time of the first beam and the service start time of the second beam are used for the terminal to determine the service interval duration between the end of service of the first beam and the start of service of the second beam.

[0157] In conjunction with some embodiments of the fifth aspect, in some embodiments, the service interval duration is used for the terminal to determine whether to switch to the RRC non-connected state after the service end time, wherein the RRC non-connected state includes at least one of the following: RRC inactive state, RRC idle state.

[0158] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information is used by the terminal to perform synchronization operations associated with the second beam;

[0159] The first information is used to determine the ephemeris information corresponding to the second beam.

[0160] In conjunction with some embodiments of the fifth aspect, in some embodiments, the synchronization operation associated with the second beam includes at least one of the following:

[0161] Beam measurements associated with downlink synchronization are performed on the second beam;

[0162] Beam measurement is performed on the second beam to determine the timing adjustment parameters associated with the second beam.

[0163] In conjunction with some embodiments of the fifth aspect, in some embodiments, the synchronization operation associated with the second beam includes:

[0164] Adjust the uplink timing and / or downlink timing for the second beam according to the synchronization transmission configuration parameters indicated by the access network equipment.

[0165] In conjunction with some embodiments of the fifth aspect, in some embodiments, the synchronous transmission configuration parameters include at least one of the following:

[0166] Adjust the indication of the downlink timing;

[0167] The ephemeris information corresponding to the second beam;

[0168] Timing adjustment parameters associated with the second beam;

[0169] The effective time information of the synchronous transmission configuration parameters.

[0170] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information is also used to indicate the synchronization transmission configuration parameters.

[0171] In conjunction with some embodiments of the fifth aspect, in some embodiments, based on the first information, it is further used to enable the terminal to determine beam failure configuration parameters, wherein the beam failure configuration parameters are used to determine whether the first beam or the second beam is available.

[0172] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information indicates a random access configuration for instructing the terminal to perform random access within the coverage area of ​​the second beam signal.

[0173] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first beam and the second beam are associated with the same serving cell of the terminal.

[0174] Sixthly, embodiments of this disclosure provide a communication system, wherein the information transmission system includes a terminal and an access network device;

[0175] The terminal is configured to implement the information transmission method described in the first aspect;

[0176] The first network element is configured to implement the information transmission method described in the second aspect.

[0177] In a seventh aspect, embodiments of this disclosure provide a communication device, wherein the communication device includes:

[0178] One or more processors;

[0179] The processor is used to invoke instructions to cause the communication device to execute the information transmission method described in the first or second aspect.

[0180] Eighthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the information transmission method described in the first or second aspect.

[0181] It is understood that the aforementioned access network equipment, terminals, communication equipment, communication systems, storage media, program products, and computer programs are all used to execute the methods provided in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0182] This disclosure provides an information transmission method and apparatus, a communication device, a communication system, and a storage medium. In some embodiments, the terms "information transmission method" and "information processing method" can be used interchangeably, as can the terms "information transmission apparatus" and "information processing apparatus" and "information transmission device," and the terms "communication system" and "information processing system" can be used interchangeably.

[0183] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0184] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0185] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0186] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0187] In the embodiments of this disclosure, "multiple" refers to two or more.

[0188] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0189] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "A in one case, B in another", etc., may include the following technical solutions depending on the situation: in some embodiments, A (A is executed regardless of B); in some embodiments, B (B is executed regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0190] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0191] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0192] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0193] In some embodiments, terms such as “…”, “determine…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably.

[0194] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0195] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.

[0196] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0197] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0198] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriberstation, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, and client can be used interchangeably.

[0199] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0200] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0201] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0202] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0203] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0204] Figure 1a This is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0205] like Figure 1a As shown, the communication system 100 includes a terminal 101 and an access network device 102.

[0206] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0207] In some embodiments, the access network device 102 may be, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), wireless backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0208] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0209] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0210] In some embodiments, the communication system 100 may further include a core network device 103. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0211] It is understood that the communication system described in the embodiments of this disclosure is for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and does not constitute a limitation on the technical solutions provided in the embodiments of this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this disclosure are also applicable to similar technical problems.

[0212] The following embodiments of this disclosure can be applied to Figure 1a The communication system 100 shown, or a part thereof, but not limited to it. Figure 1a The entities shown are illustrative; a communication system may include... Figure 1a All or part of the main body, or may include Figure 1a Other entities besides the main body, the number and form of each entity are arbitrary, the connection relationship between the entities is illustrative, the entities may not be connected or may be connected, and the connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0213] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Futuregeneration radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0214] In the research of wireless communication technology, satellite communication is considered an important aspect of the future development of wireless communication technology. Satellite communication refers to communication conducted by terrestrial radio communication equipment using satellites as relays. A satellite communication system consists of a satellite component and a terrestrial component. The characteristics of satellite communication are: large communication range; communication can be conducted between any two points within the coverage area of ​​the satellite's emitted radio waves; and it is less affected by land-based disasters (high reliability). As a supplement to current terrestrial cellular communication systems, satellite communication can offer the following advantages:

[0215] Extended coverage: For areas that cannot be covered by current cellular communication systems or where the cost of coverage is too high, such as oceans, deserts, and remote mountainous areas, satellite communication can be used to solve the communication problem.

[0216] Emergency communications: In extreme situations such as disasters like earthquakes that render cellular communication infrastructure unavailable, satellite communications can be used to quickly establish communication connections.

[0217] Provides industry applications: For example, for latency-sensitive services requiring long-distance transmission, satellite communication can be used to reduce transmission latency.

[0218] It is foreseeable that satellite communication systems and terrestrial cellular communication systems will gradually achieve deep integration, truly realizing the Internet of Everything.

[0219] In satellite communication scenarios, such as Figure 1b and Figure 1c As shown, due to the long signal transmission distance between the transmitting and receiving ends, there is a significant timing deviation between uplink and downlink transmissions. For transmissions involving both uplink and downlink, a time-domain offset parameter can be introduced to compensate for the transmission delay.

[0220] The time-domain offset parameter can be applied to various operations, such as: PUSCH transmission in DCI scheduling; transmission of HARQ feedback information; and transmission of MAC CE.

[0221] In NTN networks, due to the high-speed movement of satellites, the serving satellites for terminals in the target area may need to change frequently. This means that terminals may need to perform cell handover operations often. This results in significant signaling overhead, service interruptions, and unnecessary power consumption for terminals.

[0222] The terminal can support scenarios where satellite hard handover or soft handover occurs without a change in the Physical Cell Identifier (PCI). For example... Figure 1d The satellite hard handover scenario shown and Figure 1eAs shown in the satellite soft handover scenario: In a satellite hard handover scenario, after the serving satellite ceases service, the terminal needs to wait for a period of time before it can obtain service from the new satellite. In a satellite soft handover scenario, the coverage of the current serving satellite and the new serving satellite overlap.

[0223] Figure 2a This is an interactive schematic diagram illustrating an information transmission method according to an embodiment of this disclosure. For example... Figure 2a As shown, this disclosure relates to an information transmission method for a communication system 100, the method comprising:

[0224] Step S2101: The access network device sends the first information.

[0225] In some embodiments, the access network equipment may include: a base station.

[0226] In some embodiments, the first information is used to determine the service time of the first beam and / or the service time of the second beam. For example... Figure 2b As shown.

[0227] In some embodiments, the first beam and the second beam may include the signal coverage beams of satellites in the NTN network.

[0228] In some embodiments, the first beam may be generated by a first satellite and the second beam may be generated by a second satellite, wherein the first satellite is different from the second satellite.

[0229] In some embodiments, the terminal's serving beam switches from the first beam to the second beam.

[0230] In some embodiments, the serving beam may be a beam that provides service cell signal coverage to the terminal.

[0231] In some embodiments, the first beam carries the radio signal of the current serving cell of the terminal, and the second beam carries the radio signal of the target serving cell that the terminal is switching to.

[0232] In some embodiments, the first beam is the serving beam before the terminal performs beam switching, and the second beam is the beam to be switched to by the terminal. In some embodiments, the terminal can switch from the first beam to the second beam.

[0233] In some embodiments, the terminal may switch from the first beam to the second beam, including at least one of the following:

[0234] The terminal can hard switch from the first beam to the second beam; or soft switch from the first beam to the second beam.

[0235] In some embodiments, the first information is used to indicate the service time of the first beam and / or the service time of the second beam.

[0236] In some embodiments, the first information is associated with the service time of the first beam and / or the service time of the second beam, so that the terminal can determine the service time of the first beam and / or the service time of the second beam.

[0237] For example, the first information may include: coverage information of the first beam and satellite movement information. The terminal can determine the service time of the first beam by combining its own location.

[0238] In some embodiments, the access network device may send first information to the terminal when the terminal is within the coverage area of ​​the first beam signal.

[0239] In some embodiments, the service time of the first beam may include, but is not limited to, the service start time of the first beam and the service end time of the first beam. The service time of the second beam may include, but is not limited to, the service start time of the second beam and the service end time of the second beam.

[0240] In some embodiments, the first information may be provided to the terminal to determine the operation associated with switching from the first beam to the second beam.

[0241] For example, the terminal can determine the time for random access to the second beam based on the service start time of the second beam.

[0242] In some embodiments, the service time of the first beam includes:

[0243] The end time of service for the first beam;

[0244] The service time of the second beam includes at least one of the following:

[0245] The service start time of the second beam;

[0246] The time window during which the terminal performs beam measurement on the second beam.

[0247] In some embodiments, the time window for the terminal to perform beam measurement on the second beam can be determined based on the service start time of the second beam.

[0248] In some embodiments, beam measurement includes signal measurement of wireless signals transmitted by access network devices (such as a second satellite) within a second beam.

[0249] In some embodiments, beam measurement can be used for at least one of the following:

[0250] Uplink synchronization;

[0251] Downlink synchronization;

[0252] Terminal positioning.

[0253] For example, the time window for the terminal to perform beam measurement on the second beam can be located after the service start time of the second beam.

[0254] In some embodiments, the first beam and the second beam are associated with the same serving cell of the terminal.

[0255] In some embodiments, the first beam and the second beam are associated with the same serving cell of the terminal, including that the physical cell identifier (PCI) associated with the first beam is the same as the PCI associated with the first beam.

[0256] In some embodiments, the first beam and the second beam are associated with different serving cells of the terminal.

[0257] Step S2102: The terminal performs a synchronization operation associated with the second beam.

[0258] In some embodiments, the synchronization operation associated with the second beam includes, but is not limited to, at least one of the following:

[0259] Uplink synchronization operation;

[0260] Downlink synchronization operation;

[0261] Determine the time-domain offset parameters associated with uplink synchronization;

[0262] Determine the time-domain offset parameters for downlink synchronization association.

[0263] In some embodiments, the terminal performs a synchronization operation associated with the second beam based on the first information.

[0264] In some embodiments, based on the first information, a synchronization operation associated with the second beam is performed, including but not limited to: performing a synchronization operation associated with the second beam based on the service time of the first beam and / or the service time of the second beam.

[0265] For example, a synchronization operation associated with the second beam can be performed after the end of service for the first beam.

[0266] For example, synchronization operations associated with the second beam can be performed during the time window of beam measurement of the second beam.

[0267] In some embodiments, the terminal obtains the ephemeris information corresponding to the second beam based on the first information.

[0268] For example, the terminal can obtain the ephemeris information corresponding to the second beam before the service start time of the second beam.

[0269] In some embodiments, the synchronization operation associated with the second beam includes at least one of the following:

[0270] Beam measurements associated with downlink synchronization are performed on the second beam;

[0271] Beam measurement is performed on the second beam to determine the timing adjustment parameters associated with the second beam.

[0272] In some embodiments, beam measurements associated with downlink synchronization may include measuring the Synchronization Signal and Physical Broadcast Channel Block (SSB) or the CSI-RS. Downlink synchronization is achieved by measuring the SSB or CSI-RS.

[0273] Since synchronization operations associated with the second beam require the terminal to be within the signal coverage of the second beam, the terminal needs to perform synchronization operations based on the first information.

[0274] For example, beam measurements of the second beam can be performed in conjunction with downlink synchronization within the time window of the beam measurement of the second beam.

[0275] In some embodiments, beam measurement is performed on the second beam, including but not limited to: beam measurement of the second beam in relation to terminal positioning. Timing adjustment parameters associated with the second beam are then determined.

[0276] like Figure 1b and Figure 1c As shown, due to the long signal transmission distance between the transmitting and receiving ends, there is a significant timing deviation between uplink and downlink transmissions. For transmissions involving both uplink and downlink, the transmission delay can be compensated for using a time-domain offset parameter.

[0277] For example, beam measurement is used to determine the relative position of the terminal and the second satellite. This allows for the determination of timing adjustment parameters.

[0278] Adjusting parameters periodically can be used to compensate for uplink transmission offset at the terminal.

[0279] In some embodiments, the timing adjustment parameter includes at least one of the following:

[0280] Common Time Advance (TA);

[0281] K_offset; K_offset is used to compensate for the delay in round-trip transmission from the terminal to the uplink synchronization point.

[0282] K_mac. K_mac is used for scheduling offsets to enhance MAC CE timing relationships or to compensate for round-trip transmission delays from the uplink synchronization point to the base station.

[0283] In some embodiments, the terminal may also receive satellite ephemeris information based on the first information.

[0284] In some embodiments, ephemeris information is used to determine at least one of the following: the satellite's position, the satellite's trajectory, and the satellite's velocity. This can then be used to determine the coverage time (e.g., start and / or end time) of a satellite beam (such as a second beam), as well as timing adjustment parameters, etc.

[0285] In some embodiments, the synchronization operation associated with the second beam includes: adjusting the uplink timing and / or downlink timing for the second beam according to synchronization transmission configuration parameters indicated by the access network device.

[0286] In some embodiments, based on the first information, a synchronization operation associated with the second beam is performed, including but not limited to: adjusting the uplink timing and / or downlink timing for the second beam according to the synchronization transmission configuration parameters indicated by the access network device, based on the service time of the first beam and / or the service time of the second beam.

[0287] For example, after the service start time of the second beam, the uplink timing and / or downlink timing for the second beam can be adjusted according to the synchronization transmission configuration parameters indicated by the access network device.

[0288] In some embodiments, the access network device instructs the terminal to synchronously transmit configuration parameters.

[0289] In some embodiments, the first information is also used to indicate the synchronization transmission configuration parameters.

[0290] In some embodiments, the access network device sends second information to the terminal, the second information being used to indicate synchronous transmission configuration parameters, wherein the first information is different from the second information.

[0291] In some embodiments, the synchronous transmission configuration parameters may include at least one of the following: compensation parameters for compensating uplink transmission and compensation parameters for compensating downlink transmission.

[0292] In some embodiments, the synchronization transmission configuration parameters include at least one of the following:

[0293] Adjust the indication of the downlink timing;

[0294] The ephemeris information corresponding to the second beam;

[0295] Timing adjustment parameters associated with the second beam;

[0296] The effective time information of the synchronous transmission configuration parameters.

[0297] In some embodiments, synchronization transmission configuration parameters can be used to compensate for terminal uplink transmission offset and / or downlink transmission offset.

[0298] In some embodiments, the indication for adjusting the downlink timing can be used to instruct the terminal to perform downlink synchronization in the second beam.

[0299] In some embodiments, the indication for adjusting the downlink timing can be used to instruct the terminal to perform downlink synchronization based on a reference signal in the second beam.

[0300] In some embodiments, the reference signal includes at least one of the following: SSB, CSI-RS, TRS.

[0301] In some embodiments, the ephemeris information includes the ephemeris information of a second satellite associated with the second beam.

[0302] In some embodiments, ephemeris information is used to determine at least one of the following: the satellite's position, the satellite's trajectory, and the satellite's velocity. This can then be used to determine the coverage time (e.g., start and / or end time) of a satellite beam (such as a second beam), as well as timing adjustment parameters, etc.

[0303] In some embodiments, the timing adjustment parameter includes at least one of the following:

[0304] Common Time Advance (TA);

[0305] K_offset; K_offset is used to compensate for the delay in round-trip transmission from the terminal to the uplink synchronization point.

[0306] K_mac. K_mac is used for scheduling offsets to enhance MAC CE timing relationships or to compensate for round-trip transmission delays from the uplink synchronization point to the base station.

[0307] The starting point of the time (Epoch time) is the time when the synchronous transmission of configuration parameters takes effect.

[0308] In some embodiments, the terminal adjusts the uplink timing and / or downlink timing for the second beam based on the service time of the first beam determined by the first information and / or the service time of the second beam, according to the synchronization transmission configuration parameters indicated by the access network device.

[0309] In some embodiments, the effective time information of the synchronization transmission configuration parameters indicates the time, and the uplink timing and / or downlink timing for the second beam are adjusted according to the synchronization transmission configuration parameters indicated by the access network device.

[0310] Step S2103: The terminal determines the beam failure configuration parameters.

[0311] In some embodiments, the terminal determines beam failure configuration parameters based on the first information.

[0312] In some embodiments, beam failure configuration parameters are used to determine whether the first beam or the second beam is available.

[0313] In some embodiments, the beam failure configuration parameters of the first beam are different from those of the second beam.

[0314] In some embodiments, the terminal determines the beam failure configuration parameters corresponding to the first beam based on the service time of the first beam determined by the first information.

[0315] For example, before the end of service for the first beam, the terminal determines to use the beam failure configuration parameters corresponding to the first beam.

[0316] In some embodiments, the terminal determines the beam failure configuration parameters corresponding to the second beam based on the service time of the second beam determined by the first information.

[0317] For example, after the service time of the second beam, the terminal determines to use the beam failure configuration parameters corresponding to the second beam.

[0318] In some embodiments, the beam failure configuration parameters of the first beam are different at different times.

[0319] In some embodiments, the terminal determines the beam failure configuration parameters corresponding to the first beam at different times based on the service time of the first beam determined by the first information.

[0320] For example, during a predetermined time period before the end of service for the first beam, the terminal determines to use the first beam failure configuration parameters corresponding to the first beam.

[0321] For example, during a second predetermined time period before the end of service for the first beam, the terminal determines to use the second beam failure configuration parameters corresponding to the first beam.

[0322] In some embodiments, the terminal determines the beam failure configuration parameters corresponding to the second beam at different times based on the service time of the second beam determined by the first information.

[0323] For example, during a third predetermined time period after the end of service for the first beam, the terminal determines to use the failure configuration parameters for the third beam corresponding to the first beam.

[0324] For example, in the fourth predetermined time period after the end of service of the first beam, the terminal determines to use the fourth beam failure configuration parameters corresponding to the first beam.

[0325] In some embodiments, beam failure configuration parameters are pre-configured.

[0326] In some embodiments, beam failure configuration parameters are sent to the terminal by the access network device.

[0327] In some embodiments, the terminal determines that the first beam has failed based on beam failure configuration parameters and performs a beam failure recovery process.

[0328] Step S2104: The terminal performs random access within the second beam.

[0329] In some embodiments, the terminal performs random access based on the service time of the second beam.

[0330] In some embodiments, random access may include at least one of the following: contention-based access; non-contention-based access.

[0331] In some embodiments, the random access configuration is indicated by the access network device.

[0332] In some embodiments, the first information is used to indicate a random access configuration.

[0333] In some embodiments, the access network device sends second information to the terminal, the second information being used to indicate a random access configuration, wherein the first information is different from the second information.

[0334] In some embodiments, the random access configuration includes at least one of the following: transmission resources for the Physical Random Access Channel (PRACH) and a PRACH sequence.

[0335] Step S2105: The terminal determines the service interval duration.

[0336] In some embodiments, the terminal determines the service interval duration between the service end time and the service start time.

[0337] In some embodiments, the service interval duration is the duration of the service interval between the first beam ceasing to provide service to the terminal and the second beam providing service to the terminal.

[0338] Step S2106: When the service interval duration is greater than or equal to the threshold, the terminal switches to the RRC disconnected state after the service end time.

[0339] In some embodiments, the RRC disconnected state includes at least one of the following: RRC inactive state, RRC idle state.

[0340] In some embodiments, the terminal switches to the RRC disconnected state after the end of the first beam service and switches to the RRC connected state after the start of the second beam service.

[0341] In some embodiments, the term "information" may be used interchangeably with terms such as "message," "signal," "signaling," "report," "configuration," "indication," "instruction," "command," "channel," "parameter," "field," and "data."

[0342] In some embodiments, the term "send" may be used interchangeably with terms such as "transmit," "report," or "transmit."

[0343] The information transmission method disclosed in this embodiment may include at least one of steps S2101 to S2106. For example, step S2101, step S2103, step S2104, step S2105, and step S2106 may be implemented as independent embodiments.

[0344] For example, step S2101 combined with step S2102 can be implemented as an independent embodiment. Steps S2101 to S2103 can be combined as an independent embodiment. Step S2101 combined with steps S2102 and S2103 can be implemented as an independent embodiment, step S2101 combined with steps S2102 and S2104 can be implemented as an independent embodiment, and step S2101 combined with steps S2102, S2105, and S2106 can be implemented as an independent embodiment, but is not limited thereto.

[0345] In some embodiments, steps S2103, S2104, S2105, and S2106 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0346] Figure 3 This is a schematic flowchart illustrating an information transmission method according to an embodiment of this disclosure. Figure 3 As shown, this embodiment of the disclosure relates to an information transmission method, executed by terminal 101, the method including:

[0347] Step S3101: Obtain the first information.

[0348] In some embodiments, optional implementations of step S3101 can be found in [reference needed]. Figure 2a Optional implementation methods of step S2101, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0349] In some embodiments, the terminal receives first information sent by the access network device, but is not limited thereto; it may also receive first information sent by other entities.

[0350] In some embodiments, the terminal obtains first information as defined by the protocol.

[0351] In some embodiments, the terminal obtains first information from the upper layer(s).

[0352] In some embodiments, the terminal processes the information to obtain the first information.

[0353] In some embodiments, step S3101 is omitted, and the terminal autonomously implements the function indicated by the first information, or the above function is a default or default setting.

[0354] Step S3102: Perform synchronization operation associated with the second beam.

[0355] In some embodiments, optional implementations of step S3102 can be found in [reference needed]. Figure 2a Optional implementation methods of step S2102, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0356] Step S3103: Determine beam failure configuration parameters.

[0357] In some embodiments, optional implementations of step S3103 can be found in [reference needed]. Figure 2a Optional implementation methods of step S2103, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0358] Step S3104: Perform random access within the second beam.

[0359] In some embodiments, optional implementations of step S3104 can be found in [reference needed]. Figure 2a Optional implementation methods of step S2104, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0360] Step S3105: Determine the service interval duration.

[0361] In some embodiments, optional implementations of step S3105 can be found in [reference needed]. Figure 2aOptional implementation methods of step S2105, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0362] Step S3106: When the service interval duration is greater than or equal to the threshold, the terminal switches to the RRC disconnected state after the service end time.

[0363] In some embodiments, optional implementations of step S3106 can be found in [reference needed]. Figure 2a Optional implementation methods of step S2106, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0364] The information transmission method disclosed in this embodiment may include at least one of steps S3101 to S3106. For example, step S3101, step S3103, step S3104, step S3105, and step S3106 may be implemented as independent embodiments.

[0365] For example, step S3101 combined with step S3102 can be implemented as an independent embodiment. Steps S3101 to S3103 can be combined as an independent embodiment. Step S3101 combined with steps S3102 and S3103 can be implemented as an independent embodiment, step S3101 combined with steps S3102 and S3104 can be implemented as an independent embodiment, and step S3101 combined with steps S3102, S3105, and S3106 can be implemented as an independent embodiment, but is not limited thereto.

[0366] In some embodiments, steps S3103, S3104, S3105, and S3106 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0367] Figure 4 This is a schematic flowchart illustrating an information transmission method according to an embodiment of this disclosure. Figure 4 As shown, this embodiment of the disclosure relates to an information transmission method, executed by access network device 102, the method including:

[0368] Step S4101: Send the first message.

[0369] In some embodiments, optional implementations of step S4101 can be found in [reference needed]. Figure 2a Optional implementation methods of step S2101, and Figure 2a Other related parts in the embodiments involved will not be described in detail here.

[0370] Figure 5 This is an interactive schematic diagram illustrating an information transmission method according to an embodiment of this disclosure. For example... Figure 5 As shown, this disclosure relates to an information transmission method for a communication system 100, the method comprising one of the following steps:

[0371] Step S5101: The access network device sends first information, which is used to enable the terminal to determine the service time of the first beam and / or the service time of the second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal.

[0372] For optional implementations of step S5101, please refer to [link / reference]. Figure 2a Step S2101 Figure 3 Step S3101 Figure 4 Step S4101, and Figure 2a , Figure 3 , Figure 4 Other related parts in the embodiments involved will not be described in detail here.

[0373] In some embodiments, the above methods may include the methods of the above-described communication system side, terminal side, access network equipment side, etc., which will not be described again here.

[0374] The following provides a specific example in conjunction with any of the above embodiments:

[0375] The terminal receives the base station configuration (first information) to determine the adjustment of the serving beam, and the terminal adjusts the uplink and downlink synchronization for the new serving cell (the cell corresponding to the second beam) or the serving beam (the second beam).

[0376] The terminal receives configuration determination time information (service time) from the base station. This time information is used by the terminal to perform operations on a new serving cell or serving beam.

[0377] In one implementation, the time information indicates the service time information of the current serving cell or serving beam, such as the service end time of the current serving cell (the cell corresponding to the first beam) or serving beam (the first beam). Based on this information, the terminal can determine the operation for a new serving cell or serving beam.

[0378] In another implementation, the time information indicates the service time information of the new serving cell or the new serving beam, such as the service start time of the new serving cell or the new serving beam. The terminal can determine the operation for the new serving cell or the new serving beam based on this information.

[0379] Furthermore, the terminal can determine the time interval between the service end time of the current serving cell or serving beam and the service time information of the new serving cell or new serving beam. If the time interval is greater than or equal to a predefined or preconfigured time length, the terminal enters the IDLE state after the service end time of the current serving cell or serving beam.

[0380] In another implementation, the time information indicates the time at which the terminal performs measurements for a new serving cell or serving beam. For example, the service time information is used to determine the time window for the terminal to perform operations for a new serving cell or serving beam. The terminal can determine the operation for the new serving cell or serving beam based on this information.

[0381] Method 1: The terminal determines whether to perform a measurement (beam measurement) for a new serving cell or serving beam based on the base station's configuration information, further including:

[0382] In one implementation, the terminal begins measurement operations for a new serving cell or serving beam at the indicated time information:

[0383] • SSB measurement is used to obtain downlink synchronization;

[0384] • Obtain ephemeris information, used to obtain ephemeris information of serving satellites for new serving cells or new serving beams;

[0385] • Obtain timing adjustment parameters such as common TA, K_offset, K_mac, etc., which are used to adjust the uplink transmission offset (timing adjustment parameters) for a new serving cell or serving beam.

[0386] The terminal initiates a random access procedure on a new serving cell or a new serving beam. This random access procedure can be based on contention-based access or contention-free access. In the case of contention-free access, the terminal can also receive configuration information (first information) from the original serving base station to obtain the resources used for PRACH transmission, PRACH sequences, and other random access-related configuration information.

[0387] In another implementation, the terminal adjusts its uplink and downlink timings upon receiving the indicated time information, applying new configurations, etc. This includes the terminal receiving configuration information from the base station to obtain configurations (synchronous transmission configuration parameters) for the new serving cell or serving beam, and adjusting these parameters.

[0388] • Downlink timing adjustment command, used to determine downlink synchronization in a new serving cell or serving beam;

[0389] • Obtain ephemeris information, used to obtain ephemeris information of serving satellites for new serving cells or new serving beams;

[0390] • Obtain timing adjustment related parameters such as common TA, K_offset, K_mac, etc., which are used to adjust the uplink transmission offset (timing adjustment parameters) for a new serving cell or serving beam;

[0391] • Epoch time (optional) indicates the application time of the configuration information.

[0392] The terminal begins updating configuration information (synchronously transmitting configuration parameters) at the indicated time (or the time indicated by the epoch time).

[0393] The terminal initiates a random access procedure on a new serving cell or a new serving beam. This random access procedure can be based on contention-based access or contention-free access. In the case of contention-free access, the terminal can also receive configuration information from the original serving base station to obtain random access-related configuration information such as the resources used for PRACH transmission and the PRACH sequence.

[0394] Method 2: The terminal uses a new beam failure configuration based on the indicated time information.

[0395] The terminal determines beam failure configuration parameters based on a predefined method or by receiving configuration information from the base station. Within an indicated time period, the terminal uses the new configuration parameters to determine beam availability. The beam configuration parameters include at least an indication parameter for beam failure. If the original serving beam fails, a beam failure recovery process is executed.

[0396] This disclosure also provides apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, or a core network device) in any of the above methods.

[0397] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0398] In this disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a type of microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), a Deep Learning Processing Unit (DPU), etc.

[0399] Figure 6a This is a schematic diagram of the structure of the terminal provided in an embodiment of this disclosure. For example... Figure 6a As shown, terminal 6100 includes a transceiver module 6101 configured to receive first information, the first information being used to determine the service time of a first beam and / or the service time of a second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched to by the terminal. Optionally, the transceiver module 6101 is used to execute the steps related to information transmission and reception performed by the terminal in any of the above information transmission methods. Optionally, terminal 6100 further includes a processing module, which is used to execute the steps related to determination and processing performed by the terminal in any of the above methods, which will not be described in detail here.

[0400] Figure 6b This is a schematic diagram of the structure of the access network device provided in an embodiment of this disclosure. For example... Figure 6bAs shown, the access network device 6200 includes a transceiver module 6201 configured to send first information, the first information being used to determine the service time of a first beam and / or the service time of a second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched to by the terminal. Optionally, the transceiver module 6201 is used to execute the information transmission and reception related steps performed by the access network device in any of the above information transmission methods, which will not be elaborated here.

[0401] Figure 7a This is a schematic diagram of the structure of the communication device 8100 provided in this embodiment. The communication device 8100 can be a network device (e.g., an access network device or a core network device), a terminal (e.g., a user equipment), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above information transmission methods. The communication device 8100 can be used to implement the information transmission methods described in the above method embodiments; please refer to the descriptions in the above method embodiments for details.

[0402] like Figure 7a As shown, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. The processor 8101 is used to invoke instructions to cause the communication device 8100 to execute any of the above information transmission methods.

[0403] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may also be located outside the communication device 8100.

[0404] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the communication steps such as sending and receiving in the above method are performed by the transceivers 8103, and other steps are performed by the processor 8101.

[0405] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0406] Optionally, the communication device 8100 further includes one or more interface circuits 8104, which are connected to the memory 8102. The interface circuits 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuits 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0407] The communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in this disclosure is not limited thereto, and the structure of the communication device 8100 may vary. Figure 7a The limitations. The communication device can be a standalone device or part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally including storage components 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, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0408] Figure 7b This is a schematic diagram of the structure of chip 8200 provided in an embodiment of this disclosure. For cases where the communication device 8100 can be a chip or a chip system, please refer to... Figure 7b The diagram shown is a schematic representation of the structure of chip 8200, but it is not limited to this.

[0409] Chip 8200 includes one or more processors 8201, which are used to invoke instructions to cause chip 8200 to execute any of the above information transmission methods.

[0410] In some embodiments, chip 8200 further includes one or more interface circuits 8202 connected to memory 8203. Interface circuits 8202 can be used to receive signals from memory 8203 or other devices, and can also be used to send signals to memory 8203 or other devices. For example, interface circuit 8202 can read instructions stored in memory 8203 and send those instructions to processor 8201. Optionally, terms such as interface circuit, interface, transceiver pin, and transceiver can be used interchangeably.

[0411] In some embodiments, chip 8200 further includes one or more memories 8203 for storing instructions. Optionally, all or part of the memories 8203 may be located outside of chip 8200.

[0412] This disclosure also provides a storage medium storing instructions that, when executed on a communication device 8100, cause the communication device 8100 to perform any of the methods described above. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but it can also be a temporary storage medium.

[0413] This disclosure also provides a program product, which, when executed by a communication device 8100, causes the communication device 8100 to perform any of the above information transmission methods. Optionally, the program product is a computer program product.

[0414] This disclosure also provides a computer program that, when run on a computer, causes the computer to perform any of the above information transmission methods.

[0415] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0416] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. An information transmission method, wherein, The method, executed by a terminal, includes: Receive first information, the first information being used to determine the service time of the first beam and the service time of the second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal. Based on the first information, obtain the ephemeris information corresponding to the second beam; The service time of the first beam includes the end time of the service of the first beam, and the service time of the second beam includes the start time of the service of the second beam.

2. The method according to claim 1, wherein, The service time of the second beam also includes: The time window during which the terminal performs beam measurement on the second beam.

3. The method according to claim 2, wherein, The method further includes: Determine the service interval duration between the service end time and the service start time.

4. The method according to claim 3, wherein, The method further includes: When the service interval duration is greater than or equal to the threshold, the terminal is switched to the RRC disconnected state after the service end time, wherein the RRC disconnected state includes at least one of the following: RRC inactive state, RRC idle state.

5. The method according to any one of claims 1 to 4, wherein, The method further includes: Based on the first information, a synchronization operation associated with the second beam is performed.

6. The method according to claim 5, wherein, The synchronization operation associated with the second beam includes at least one of the following: Beam measurements associated with downlink synchronization are performed on the second beam; Beam measurement is performed on the second beam to determine the timing adjustment parameters associated with the second beam.

7. The method according to claim 5, wherein, The synchronization operation associated with the second beam includes: Adjust the uplink timing and / or downlink timing for the second beam according to the synchronization transmission configuration parameters indicated by the access network equipment.

8. The method according to claim 7, wherein the synchronous transmission configuration parameters include at least one of the following: Adjust the indication of the downlink timing; The ephemeris information corresponding to the second beam; The timing adjustment parameters associated with the uplink timing; The effective time information of the synchronous transmission configuration parameters.

9. The method according to any one of claims 1 to 8, wherein, The method further includes: Based on the first information, beam failure configuration parameters are determined, wherein the beam failure configuration parameters are used to determine whether the first beam or the second beam is available.

10. The method according to any one of claims 1 to 9, wherein, The method further includes: The terminal performs random access within the coverage area of ​​the second beam signal, wherein the random access configuration is indicated by the access network device.

11. The method according to any one of claims 1 to 10, wherein, The first beam and the second beam are associated with the same serving cell of the terminal.

12. An information transmission method, wherein, The method is executed by an access network device, and the method includes: Send first information, the first information being used to determine the service time of the first beam and the service time of the second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal. The first information is used to determine the ephemeris information corresponding to the second beam; The service time of the first beam includes the end time of the service of the first beam, and the service time of the second beam includes the start time of the service of the second beam.

13. The method according to claim 12, wherein, The service time of the second beam also includes: The time window during which the terminal performs beam measurement on the second beam.

14. The method according to claim 13, wherein, The service end time of the first beam and the service start time of the second beam are used by the terminal to determine the service interval duration between the end of service of the first beam and the start of service of the second beam.

15. The method according to claim 14, wherein, The service interval duration is used for the terminal to determine whether to switch to the RRC non-connected state after the service ends, wherein the RRC non-connected state includes at least one of the following: RRC inactive state and RRC idle state.

16. The method according to any one of claims 12 to 15, wherein, The first information is used by the terminal to perform synchronization operations associated with the second beam.

17. The method according to claim 16, wherein, The synchronization operation associated with the second beam includes at least one of the following: Beam measurements associated with downlink synchronization are performed on the second beam; Beam measurement is performed on the second beam to determine the timing adjustment parameters associated with the second beam.

18. The method according to claim 16, wherein, The synchronization operation associated with the second beam includes: Adjust the uplink timing and / or downlink timing for the second beam according to the synchronization transmission configuration parameters indicated by the access network equipment.

19. The method according to claim 18, wherein the synchronization transmission configuration parameters include at least one of the following: Adjust the indication of the downlink timing; The ephemeris information corresponding to the second beam; Timing adjustment parameters associated with the second beam; The effective time information of the synchronous transmission configuration parameters.

20. The method according to any one of claims 12 to 19, wherein, Based on the first information, it is also used to enable the terminal to determine beam failure configuration parameters, wherein the beam failure configuration parameters are used to determine whether the first beam or the second beam is available.

21. The method according to any one of claims 12 to 20, wherein, The first information indication is used to instruct the terminal to perform random access configuration within the coverage area of ​​the second beam signal.

22. The method according to any one of claims 12 to 21, wherein, The first beam and the second beam are associated with the same serving cell of the terminal.

23. An information transmission method, wherein, Performed by a communication system, the method includes: The access network device sends first information, which is used to enable the terminal to determine the service time of the first beam and the service time of the second beam. The first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal. Based on the first information, the terminal obtains the ephemeris information corresponding to the second beam; The service time of the first beam includes the end time of the service of the first beam, and the service time of the second beam includes the start time of the service of the second beam.

24. A terminal, wherein, include: The transceiver module is configured to receive first information, which is used to determine the service time of a first beam and the service time of a second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched to by the terminal; based on the first information, the ephemeris information corresponding to the second beam is obtained. The service time of the first beam includes the end time of the service of the first beam, and the service time of the second beam includes the start time of the service of the second beam.

25. An access network device, wherein, include: The transceiver module is configured to send first information, which is used to determine the service time of the first beam and the service time of the second beam, wherein the first beam is the service beam before the terminal performs beam switching, and the second beam is the beam to be switched by the terminal. The first information is used to determine the ephemeris information corresponding to the second beam; The service time of the first beam includes the end time of the service of the first beam, and the service time of the second beam includes the start time of the service of the second beam.

26. A communication system, wherein, The information transmission system includes a terminal and access network equipment; The terminal is configured to implement the information transmission method according to any one of claims 1 to 11; The access network device is configured to implement the information transmission method according to any one of claims 12 to 22.

27. A communication device, wherein, The communication device includes: One or more processors; The processor is used to invoke instructions to cause the communication device to execute the information transmission method according to any one of claims 1 to 11 and claims 12 to 22.

28. A storage medium, wherein, The storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the information transmission method according to any one of claims 1 to 11 and claims 12 to 22.

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