Information retransmission method, and device, storage medium and program product

Abstract

The present disclosure relates to an information retransmission method, and a device, a storage medium and a program product. The information retransmission method comprises: receiving first information sent by a second device, wherein the first information is used for indicates that a first device retransmits second information, and the second information carries an identifier of the first device; and on the basis of the first information, determining a first frequency domain resource, wherein the first frequency domain resource is used for retransmitting the second information. In the embodiment, both the first device and the second device can determine, on the basis of the first information used for indicating the retransmission of the second information, the frequency domain resource that is used to retransmit the second information, thereby ensuring that an accurate frequency domain resource is used during the retransmission of the second information; and the first device and the second device have a consistent understanding on the determined frequency domain resource that is used to retransmit the second information, thus improving the stability of retransmitting the second information between the first device and the second device.

Description

Information retransmission methods, devices, storage media and program products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to methods, devices, storage media and program products for retransmitting information. Background Technology

[0002] In IoT design, it is necessary to implement inventory or other operations on IoT devices. During the inventory process, IoT devices need to establish a connection with a reader device through a random access process to complete the inventory. The reader can also perform operations such as reading, writing or erasing on the successfully inventoried IoT devices. Summary of the Invention

[0003] This application solves the problem of how to determine the frequency domain resources used for retransmitting information, and can realize the determination of the frequency domain resources used for retransmitting the second information, thereby improving the stability when retransmitting information.

[0004] This disclosure provides an information retransmission method, apparatus, storage medium, and program product.

[0005] According to a first aspect of the present disclosure, a method for retransmitting information is provided, the method being performed by a first device, the method comprising:

[0006] Receive first information sent by the second device, the first information being used to instruct the first device to resend the second information, the second information carrying the identifier of the first device;

[0007] Based on the first information, a first frequency domain resource is determined, and the first frequency domain resource is used to retransmit the second information.

[0008] According to a second aspect of the present disclosure, a method for retransmitting information is provided, the method being performed by a second device, the method comprising:

[0009] Send a first message to a first device, the first message being used to instruct the first device to retransmit a second message, the second message carrying the identifier of the first device; the first message being used to determine a first frequency domain resource, the first frequency domain resource being used to retransmit the second message.

[0010] According to a third aspect of the present disclosure, an information retransmission apparatus is provided, the apparatus comprising:

[0011] The transceiver module is used to receive first information sent by the second device, the first information being used to instruct the first device to resend the second information, and the second information carrying the identifier of the first device;

[0012] The processing module is configured to determine a first frequency domain resource based on the first information, and the first frequency domain resource is used to retransmit the second information.

[0013] According to a fourth aspect of the present disclosure, an information retransmission apparatus is provided, the apparatus comprising:

[0014] The transceiver module is used to send first information to a first device, the first information being used to instruct the first device to retransmit second information, the second information carrying the identifier of the first device; the first information is used to determine a first frequency domain resource, the first frequency domain resource being used to retransmit the second information.

[0015] According to a fifth aspect of the present disclosure, a communication device is provided for performing the information retransmission method as described in the first or second aspect.

[0016] According to a sixth aspect of the present disclosure, an information retransmission method is proposed for a communication system, the communication system including a first device and a second device, the first device being configured to implement the information retransmission method as described in the first aspect, and the second device being configured to implement the information retransmission method as described in the second aspect.

[0017] According to a seventh aspect of the present disclosure, a communication system is provided, including at least one of a first device and a second device, wherein the first device is configured to implement the information retransmission method as described in the first aspect, and the second device is configured to implement the information retransmission method as described in the second aspect.

[0018] According to an eighth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication device to perform the information retransmission method as described in the first or second aspect.

[0019] According to a ninth aspect of the present disclosure, a program product is provided, including at least one of a program and instructions, wherein when the program and instructions are executed by a communication device, they implement the information retransmission method as described in the first or second aspect.

[0020] In the above embodiments, both the first device and the second device can determine the frequency domain resources for retransmitting the second information based on the first information used to indicate the retransmission of the second information, ensuring that accurate frequency domain resources are used when retransmitting the second information. The first device and the second device have a consistent understanding in determining the frequency domain resources for retransmitting the second information, thereby improving the stability of retransmitting the second information between the first device and the second device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0022] Figure 1A is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0023] Figure 1B is a schematic diagram of a random access procedure provided according to an embodiment of the present disclosure.

[0024] Figure 1C is a schematic diagram of frequency division provided according to an embodiment of the present disclosure.

[0025] Figure 1D is a schematic diagram of time division according to an embodiment of the present disclosure.

[0026] Figure 1E is a schematic diagram of frequency division and time division combination provided according to an embodiment of the present disclosure.

[0027] Figure 2A is an interactive schematic diagram of an information retransmission method according to an embodiment of the present disclosure.

[0028] Figures 2B to 2E are schematic diagrams illustrating the retransmission of second information according to embodiments of the present disclosure.

[0029] Figure 2F is an interactive schematic diagram of an information retransmission method according to an embodiment of the present disclosure.

[0030] Figure 3A is a schematic flowchart illustrating an information retransmission method according to an embodiment of the present disclosure.

[0031] Figure 3B is a schematic flowchart illustrating an information retransmission method according to an embodiment of the present disclosure.

[0032] Figure 4 is a flowchart illustrating an information retransmission method according to an embodiment of the present disclosure.

[0033] Figure 5A is a schematic diagram of the structure of the terminal proposed in an embodiment of this disclosure.

[0034] Figure 5B is a schematic diagram of the structure of the network device proposed in an embodiment of this disclosure.

[0035] Figure 6A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.

[0036] Figure 6B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0037] This disclosure provides an information retransmission method, apparatus, storage medium, and program product.

[0038] In a first aspect, embodiments of this disclosure provide a method for retransmitting information, the method being executed by a first device, the method comprising:

[0039] Receive first information sent by the second device, the first information being used to instruct the first device to resend the second information, the second information carrying the identifier of the first device;

[0040] Based on the first information, a first frequency domain resource is determined, and the first frequency domain resource is used to retransmit the second information.

[0041] In the above embodiments, both the first device and the second device can determine the frequency domain resources for retransmitting the second information based on the first information used to indicate the retransmission of the second information, ensuring that accurate frequency domain resources are used when retransmitting the second information. The first device and the second device have a consistent understanding in determining the frequency domain resources for retransmitting the second information, thereby improving the stability of retransmitting the second information between the first device and the second device.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first frequency domain resource based on the first information includes:

[0043] The first information does not include the first resource scheduling information. The first frequency domain resource is determined based on the second frequency domain resource. The first resource scheduling information is used to indicate the frequency domain resource for retransmitting the second information.

[0044] In the above embodiments, if the first information does not include resource scheduling information for the frequency domain resources used to indicate the retransmission of the second information, the first frequency domain resources need to be determined based on the second frequency domain resources. This eliminates the need to carry resource scheduling information in the first information, thereby saving signaling overhead and improving resource utilization.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the second frequency domain resource refers to the frequency domain resource used when the second information was last transmitted;

[0046] Determining the first frequency domain resource based on the second frequency domain resource includes:

[0047] The frequency offset coefficient of the previously transmitted second information is determined as the frequency offset coefficient of the first frequency domain resource, and the first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource; or,

[0048] The frequency offset coefficient R' of the first frequency domain resource is determined based on at least one of the first offset value offset, the first value Y, and the frequency offset coefficient R of the second information sent in the previous transmission. The first value is used to obtain the frequency offset coefficient of the first frequency domain resource by taking the remainder of the sum of the frequency offset coefficient and the offset value. The first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource.

[0049] In the above embodiments, the first device can adjust the frequency offset coefficient of the previously transmitted second information based on the first offset value and the first numerical value to obtain the frequency offset coefficient of the first frequency domain resource. This allows the first frequency domain resource to be determined based on the determined frequency offset coefficient, improving the flexibility of determining the first frequency domain resource. Furthermore, the first offset value can be used to determine the frequency offset coefficients of multiple first frequency domain resources, thereby determining multiple frequency domain resources and increasing the retransmission gain of the second information.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, the second frequency domain resource refers to the frequency domain resource for transmitting the third information, which refers to information used to trigger a random access procedure;

[0051] Determining the first frequency domain resource based on the second frequency domain resource includes:

[0052] The frequency offset coefficient of the third information is determined as the frequency offset coefficient of the first frequency domain resource, and the first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource; or...

[0053] The first frequency domain resource is determined based on at least one of the second offset value, the second numerical value, and the frequency offset coefficient of the third information, wherein the second numerical value is used to take the remainder of the sum of the frequency offset coefficient and the second offset value.

[0054] In the above embodiments, the frequency domain resource used to send information triggering the random access procedure can be determined as the second frequency domain resource, improving the accuracy of determining the second frequency domain resource and saving signaling consumption for indicating the second frequency domain resource. Furthermore, the first device can directly use the frequency offset coefficient of the third information as the frequency offset coefficient of the first frequency domain resource, or it can adjust the frequency offset coefficient of the third information used to trigger the random access procedure based on the second offset value and the second value to obtain multiple frequency offset coefficients of the first frequency domain resource. This allows the determination of the first frequency domain resource based on the determined frequency offset coefficients, improving the flexibility of determining the first frequency domain resource. Additionally, the second offset value can be used to determine the frequency offset coefficients of multiple first frequency domain resources, thereby determining multiple frequency domain resources and increasing the retransmission gain of the second information.

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

[0056] The second information is sent using chip parameters, which are the same as those used in the previous transmission of the second information or the transmission of the third information.

[0057] In the above embodiments, the first information is sent using the same chip parameters as those used in the previous transmission of the second information or the third information. The first information does not need to carry additional resource scheduling information, thus saving resource consumption and improving resource utilization.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first frequency domain resource based on the first information includes:

[0059] The first information includes first resource scheduling information, and the first frequency domain resource is determined based on the frequency domain resource indicated by the first resource scheduling information.

[0060] In the above embodiments, if the first information includes first resource scheduling information, the first frequency domain resource can be directly determined based on the frequency domain resource indicated by the first resource scheduling information. That is, the frequency domain resource is directly indicated by the resource scheduling information of the first information, which improves the flexibility of indicating the frequency domain resource used to retransmit the second information.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the first resource scheduling information includes identification information, the identification information being used to indicate a frequency offset coefficient, and the frequency offset coefficient being used to determine the first frequency domain resource.

[0062] In the above embodiments, the frequency offset coefficient corresponding to the first resource scheduling information is indicated by the identification information, eliminating the need to carry the frequency offset coefficient, saving the overhead of the information that the first information needs to carry, and improving resource utilization.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, the first resource scheduling information includes chip parameters, which are used to send the second information.

[0064] In the above embodiments, the second information is sent through the chip parameters included in the first resource scheduling information. The second information can be resent through the chip parameters. The scheduling or indication can be directly achieved through the second information, which can improve the flexibility of indicating the chip parameters used to resend the second information.

[0065] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0066] Based on the first information, a first time-domain resource is determined, and the first time-domain resource is used to send the second information.

[0067] In the above embodiments, both the first device and the second device can determine the time domain resources for retransmitting the second information based on the first information used to indicate the retransmission of the second information, ensuring that accurate time domain resources are used when retransmitting the second information. The first device and the second device have a consistent understanding in determining the time domain resources for retransmitting the second information, thereby improving the stability of retransmitting the second information between the first device and the second device.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first time-domain resource based on the first information includes:

[0069] The first information does not include the second resource scheduling information. The first time domain resource is determined based on the second time domain resource. The second resource scheduling information is used to indicate the time domain resource for retransmitting the second information.

[0070] In the above embodiments, if the first information does not include resource scheduling information for the time domain resources used to indicate the retransmission of the second information, it is necessary to determine the first time domain resources based on the second time domain resources. This eliminates the need to carry additional resource scheduling information in the first information, saving the overhead of the first information and improving resource utilization.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the second time-domain resource refers to the time-domain resource at the same location used when the second information was last sent.

[0072] In the above embodiments, since the first device is retransmitting the second information, it can continue to use the time domain resources of the previous transmission of the second information, without the first information carrying additional resource scheduling information, thus saving the signaling consumption of re-indicating time domain resources.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is not the information received for the first time during the random access process.

[0074] In conjunction with some embodiments of the first aspect, in some embodiments, the second time-domain resource refers to the time-domain resource at the same location used when sending the third information, the third information referring to information used to trigger a random access procedure.

[0075] In the above embodiments, the second time domain resource is determined by the time domain resource at the same location used when sending the third information, without the first information carrying additional resource scheduling information, thus saving the signaling consumption of indicating the time domain resource again.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is the information received for the first time during the random access process.

[0077] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first time-domain resource based on the first information includes:

[0078] The first information includes second resource scheduling information, and the time-domain resource indicated by the second resource scheduling information is determined as the first time-domain resource.

[0079] In the above embodiments, the first time-domain resource can be determined directly through the second resource scheduling information, thereby improving the flexibility of indicating the time-domain resource used to resend the second information.

[0080] Secondly, embodiments of this disclosure propose a method for retransmitting information, the method being executed by a second device, the method comprising:

[0081] Send a first message to a first device, the first message being used to instruct the first device to retransmit a second message, the second message carrying the identifier of the first device; the first message being used to determine a first frequency domain resource, the first frequency domain resource being used to retransmit the second message.

[0082] In conjunction with some embodiments of the second aspect, in some embodiments, the first information does not include first resource scheduling information, the first frequency domain resource is determined based on the second frequency domain resource, and the first resource scheduling information is used to indicate the frequency domain resource for retransmitting the second information.

[0083] In conjunction with some embodiments of the second aspect, in some embodiments, the second frequency domain resource refers to the frequency domain resource used when the second information was last transmitted;

[0084] The frequency offset coefficient of the first frequency domain resource is the frequency offset coefficient of the second information previously transmitted, and the first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource; or,

[0085] The frequency offset coefficient of the first frequency domain resource is obtained by taking the remainder of the sum of the frequency offset coefficient and the offset value based on the first value. The frequency offset coefficient R' of the first frequency domain resource is determined based on the first offset value offset, the first value Y, and the frequency offset coefficient R of the second information sent in the last time. The first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource.

[0086] In conjunction with some embodiments of the second aspect, in some embodiments, the second frequency domain resource refers to the frequency domain resource for transmitting the third information, which refers to information used to trigger a random access procedure;

[0087] The first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource; or,

[0088] The first frequency domain resource is determined based on the second offset value, the second numerical value, and the frequency offset coefficient of the third information. The second numerical value is used to take the remainder of the sum of the frequency offset coefficient and the second offset value.

[0089] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0090] The second information is received using chip parameters, which are the same as those used in the previous transmission of the second information or the transmission of the third information.

[0091] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes first resource scheduling information, and the first frequency domain resource is determined based on the frequency domain resource indicated by the first resource scheduling information.

[0092] In conjunction with some embodiments of the second aspect, in some embodiments, the first resource scheduling information includes identification information, the identification information being used to indicate a frequency offset coefficient, and the frequency offset coefficient being used to determine the first frequency domain resource.

[0093] In conjunction with some embodiments of the second aspect, in some embodiments, the first resource scheduling information includes chip parameters, which are used to send the second information.

[0094] In conjunction with some embodiments of the second aspect, in some embodiments, the first time-domain resource is determined based on the first information, and the first time-domain resource is used to send the first information.

[0095] In conjunction with some embodiments of the second aspect, in some embodiments, the first information does not include the second resource scheduling information, the first time-domain resource is determined based on the second time-domain resource, and the second resource scheduling information is used to indicate the time-domain resource for retransmitting the second information.

[0096] In conjunction with some embodiments of the second aspect, in some embodiments, the second time-domain resource refers to the time-domain resource at the same location used when the second information was last sent.

[0097] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is not the information received for the first time during the random access process.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, the second time-domain resource refers to the time-domain resource at the same location used when sending the third information, the third information referring to information used to trigger a random access procedure.

[0099] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is the information received for the first time during the random access process.

[0100] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes second resource scheduling information, and the first time-domain resource is the time-domain resource indicated by the second resource scheduling information.

[0101] Thirdly, embodiments of this disclosure provide an information retransmission apparatus, the apparatus comprising:

[0102] The transceiver module is used to receive first information sent by the second device, the first information being used to instruct the first device to resend the second information, and the second information carrying the identifier of the first device;

[0103] The processing module is configured to determine a first frequency domain resource based on the first information, and the first frequency domain resource is used to retransmit the second information.

[0104] Fourthly, embodiments of this disclosure provide an information retransmission apparatus, the apparatus comprising:

[0105] The transceiver module is used to send first information to a first device, the first information being used to instruct the first device to retransmit second information, the second information carrying the identifier of the first device; the first information is used to determine a first frequency domain resource, the first frequency domain resource being used to retransmit the second information.

[0106] Fifthly, embodiments of this disclosure provide a communication device for performing the information retransmission method as described in the first or second aspect.

[0107] In a sixth aspect, a communication system is proposed, including at least one of a first device and a second device, wherein the first device is configured to implement the information retransmission method as described in the first aspect, and the second device is configured to implement the information retransmission method as described in the second aspect.

[0108] In a seventh aspect, embodiments of this disclosure provide an information retransmission method for a communication system, the communication system including a first device and a second device, the first device being configured to implement the information retransmission method as described in the first aspect, and the second device being configured to implement the information retransmission method as described in the first aspect.

[0109] Eighthly, a storage medium is proposed that stores instructions that, when executed on a communication device, cause the communication device to perform the information retransmission method as described in the first or second aspect.

[0110] In a ninth aspect, a program product is proposed, comprising at least one of a program and instructions, wherein when the program or instructions are executed by a communication device, they implement the information retransmission method as described in the first or second aspect.

[0111] It is understood that the aforementioned communication equipment, communication system, storage medium, program product, etc., are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0112] This disclosure provides methods, apparatus, systems, storage media, and program products for retransmitting information. In some embodiments, the terms "information retransmission method" and "communication method," "frequency domain determination method," and "information processing method" may be used interchangeably.

[0113] 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. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0114] 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.

[0115] 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.

[0116] In the embodiments disclosed herein, "multiple" refers to two or more.

[0117] In some embodiments, the terms "at least one of A or B, at least one of A and B", "one or more", "a plurality of", "multiple" and the like can be used interchangeably.

[0118] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0119] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); 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, and C.

[0120] 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.

[0121] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0122] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0123] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0124] 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”.

[0125] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0126] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0127] 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.

[0128] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0129] 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.

[0130] 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.

[0131] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0132] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0133] 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.

[0134] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0135] As shown in Figure 1A, the communication system 100 includes a first device 101 and a second device 102. In some embodiments, the first device may be a device used in the Internet of Things (IoT) field, for example, an IoT device. IoT devices refer to various physical devices connected to the Internet through network connectivity and communication technologies. They can collect, transmit, and share data, enabling interconnection between devices. The second device 102 may be a terminal, network device, or other device, supporting interaction with the first device 101. Optionally, the second device 102 may also support interaction with the first device 101, etc.

[0136] Optionally, terminal 101 may include, for example, 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, but is not limited thereto.

[0137] Optionally, 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 at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation evolved Node B (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio 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, but is not limited thereto.

[0138] 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.

[0139] 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.

[0140] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of the evolved packet core (EPC), 5G core network (5GCN), and next-generation core (NGC).

[0141] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in 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 proposed in this disclosure are also applicable to similar technical problems.

[0142] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1A, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1A are illustrative. The communication system may include all or some of the main bodies in FIG1A, or it may include other main bodies outside of FIG1A. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. 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.

[0143] 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), Future generation 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).

[0144] In some embodiments, the communication system of this disclosure is applied in a passive Internet of Things (IoT). The first device 101 can be a device, and the second device 102 can be a reader device, which can also perform inventory checks on the device. Referring to Figure 1B, the device completes the corresponding random access process in three steps:

[0145] Step S1101: The Device sends message 1 (Msg1) to the Reader.

[0146] In some embodiments, the device generates a random number and carries the random number in Msg1. For example, the device generates a 16-bit random number, or a random number of other bit values.

[0147] Step S1102: The Reader device replies to the Device device with message 2 (Msg2).

[0148] In some embodiments, if the Reader device recognizes that the contention has been successfully resolved, it sends a corresponding response message to the Device device.

[0149] In step S1103, the Device sends message 3 (Msg3) to the Reader.

[0150] In some embodiments, Msg3 includes information such as the Device Manufacturer ID and EPC code. The Reader device only considers the Device inventory successful after correctly receiving this information. After Msg3, the Reader device can perform further operations on the successfully inventoried Devices, such as reading, writing, and killing.

[0151] Optionally, if the device receives a contention resolution flag via Msg2, then step S1103 is executed. This contention resolution flag can be a 16-bit random number from Msg1.

[0152] It should be noted that the above embodiments describe the inventory process of the device. In another embodiment, frequency division can be used to improve inventory efficiency.

[0153] In some embodiments, to increase inventory efficiency, in the Ambient Internet of Things (A-IoT), for D2R (device-to-reader) transmission, frequency division multiplexing (FDM) can be supported for multiple devices within the same access occasion. Each device can transmit via PDRCH (Physical Distribution Channel) at different frequencies using methods such as line coding, for example, Manchester coding. Alternatively, time division multiplexing (TDM) access within a sub-occasion of the same occasion can also be considered for D2R transmission, further increasing transmission efficiency. Optionally, the occasion in the above embodiments corresponds to the interval between two consecutive QueryRep (inventory repeat) signaling messages in RFID. This interval is a time slot.

[0154] For example, as shown in Figure 1C, four frequency domain resources are divided in the frequency domain through linear coding, namely frequency domain resource index #1, frequency domain resource index #2, frequency domain resource index #3 and frequency domain resource index #4.

[0155] For example, as shown in Figure 1D, within one occasion (corresponding to the time interval between two queryReq signals in RFID), four sub-occurrences can be obtained by performing TDM within one occasion, namely sub-occurrence 1, sub-occurrence 2, sub-occurrence 3 and sub-occurrence 4.

[0156] For example, as shown in Figure 1E, the division of the frequency domain into four frequency domain resources can also be achieved through linear coding. Furthermore, within one occasion (corresponding to the time interval between two queryReq signals in RFID), four sub-occurrences can be obtained by performing TDM within one occasion. Therefore, the intersection of the frequency domain and the time domain can yield 16 resource units.

[0157] Figure 2A is an interactive schematic diagram of an information retransmission method according to an embodiment of the present disclosure. As shown in Figure 2A, the present disclosure relates to an information retransmission method, which includes:

[0158] Step S2101: The first device sends third information to the second device.

[0159] In some embodiments, the second device receives third information sent by the first device.

[0160] In some embodiments, the third information refers to information used to trigger a random access procedure. Alternatively, if the first device sends the third information, it indicates that the first device has begun executing a random access procedure and needs to access the second device through the random access procedure.

[0161] In some embodiments, the random access procedure is similar to the embodiment shown in FIG1B above. Optionally, the third information in this embodiment is Msg1. The third information includes a random number. For example, the random number may include 16 bits, 32 bits, or other numbers of bits; this embodiment does not limit this.

[0162] In this embodiment of the disclosure, after the second device receives the third information sent by the first device, it can determine that the first device has triggered a random access procedure. Subsequently, the second device continues to execute the random access procedure so that the first device can access the second device.

[0163] In step S2102, the second device sends the fourth information to the first device.

[0164] In some embodiments, the first device receives fourth information sent by the second device.

[0165] In some embodiments, the fourth information is used to instruct the second device to complete contention resolution. Alternatively, the fourth information is used to instruct the second device to receive the third information sent by the first device and send the second information to the first device to inform the first device that a random access procedure can be performed.

[0166] Optionally, the fourth information is Msg2 in the above embodiment. This fourth information includes the random number included in the third information. For example, if the random number included in the fourth information is the same as the random number included in the third information, it indicates that the second device has resolved the contention.

[0167] It should be noted that in this embodiment, the first device may not be able to receive the fourth information normally, and will subsequently resend information with the same function as the fourth information.

[0168] Step S2103: The first device sends the second information to the second device.

[0169] In some embodiments, the second device receives second information sent by the first device.

[0170] In some embodiments, the second information carries the identifier of the first device. The identifier of the first device may be the manufacturer's identifier, Electronic Product Code (EPC), etc., and this disclosure does not limit this specific instance.

[0171] In this embodiment of the disclosure, after the first device sends the second information to the second device, the second device can identify the first device based on the second information and then complete the random access process.

[0172] It should be noted that in this embodiment, there may be situations where sending the second information fails or the second device fails to receive the second information. In such cases, the first device needs to resend the second information. The following explains how the first device resends the second information.

[0173] In some embodiments, if the second device does not receive the second information within a certain period of time after sending the fourth information, it indicates that the second device has failed to receive the second information, and in this case, it needs to instruct the first device to resend the second information. Alternatively, the second device can also determine whether the second information has failed through other means, which is not limited in this embodiment.

[0174] Step S2104: The second device sends the first information to the first device.

[0175] In some embodiments, the first device receives first information sent by the second device. In some embodiments, the first information is used to instruct the first device to resend the second information. In this embodiment of the disclosure, if it is necessary to instruct the first device to resend the second information, the second device can send the first information to the first device, and the first device can determine that it is necessary to resend the second information through the first information.

[0176] In step S2105, the first device determines the first frequency domain resource based on the first information.

[0177] In some embodiments, the first frequency domain resources are used to retransmit the second information. Alternatively, the first frequency domain resources are used to retransmit the second information. Other descriptions are also possible; this disclosure does not limit the retransmission method.

[0178] In this embodiment of the disclosure, after receiving the first information, the first device needs to determine the first frequency domain resources, and then resend the second information based on the first frequency domain resources.

[0179] It should be noted that the determined first frequency domain resource refers to a frequency point. Alternatively, the first frequency domain resource refers to the frequency domain resource indicated by the frequency domain resource information, but this embodiment of the present disclosure does not limit this.

[0180] In some embodiments, the first information does not include first resource scheduling information, and the first frequency domain resource is determined based on the second frequency domain resource. The first resource scheduling information is used to indicate the frequency domain resource for retransmitting the second information. In this embodiment, if the first information does not include first resource scheduling information, it indicates that the second device did not directly indicate the frequency domain resource for retransmitting the second information through the first information, and the first frequency domain resource needs to be determined based on the second frequency domain resource. Optionally, determining the first frequency domain resource based on the second frequency domain resource includes determining the second frequency domain resource as the first frequency domain resource.

[0181] Optionally, the second frequency domain resource refers to the frequency domain resource used when the second information was previously transmitted. In this embodiment, since the first device has already transmitted the second information, it can reuse the frequency domain resource used when transmitting the second information to transmit the second information again. Furthermore, the second device does not need to determine the first frequency domain resource based on the first resource scheduling information, which saves signaling consumption and improves resource utilization. It should be noted that the previously transmitted second information can be the second information initially transmitted during random access or the second information that has already been retransmitted.

[0182] Optionally, the first information is not the first information received during the random access process. Specifically, the first information is not the first information received during the random access process that has the same function as the first information. Alternatively, it can be said that the first information is not the first information received during the random access process that indicates the transmission of the second information.

[0183] In this embodiment of the disclosure, if the first information is not the first information received during the random access process, the first device determines the frequency domain resources used when the second information was last sent as the first frequency domain resources. Further, if the first information does not include first resource scheduling information and is not the first information received during the random access process, the first device determines the frequency domain resources used when the second information was last sent as the first frequency domain resources.

[0184] For example, taking Msg2 as the first and fourth information and Msg3 as the second information, as shown in Figure 2B, the second device sends the fourth information Msg2, and the first device successfully receives the fourth information Msg2. Then, it fails to send Msg3 on the frequency domain resources scheduled by Msg2. So the first device sends the first information Msg2, which indicates that the second information should be resent. Then, Msg3 is resent using the same frequency domain resources as the previously sent Msg3.

[0185] Optionally, the first device determines the frequency offset coefficient of the previously transmitted second information as the frequency offset coefficient of the first frequency domain resource, and determines the first frequency domain resource based on the frequency offset coefficient of the first frequency domain resource. Here, the frequency offset coefficient represents the number of times the codeword is repeated after Manchester encoding within one bit duration. Alternatively, the frequency offset coefficient is used for repeated transmission to achieve spectrum shifting, thereby completing FDM. Spectrum shifting refers to shifting the spectrum of the modulated signal from a low-frequency end to a high-frequency end, or from a high-frequency end to a low-frequency end. This is typically used for signal processing at the transmitting end to facilitate antenna transmission or to achieve frequency division multiplexing of different signal sources and systems. Wherein, if the frequency offset coefficient is 1, the continuous signal in the time domain is repeated once; if the frequency offset coefficient is 4, the continuous signal in the time domain is repeated four times; and if the frequency offset coefficient is 8, the continuous signal in the time domain is repeated eight times.

[0186] For example, taking Msg2 as the first and fourth information and Msg3 as the second information, as shown in Figure 2C, the second device sends the fourth information Msg2, and the first device successfully receives the fourth information Msg2. Then, it fails to send Msg3 on the frequency domain resources scheduled by Msg2. So the first device sends the first information Msg2, which indicates that the second information should be resent. Then, it uses the frequency domain resources of R' = (R + offset) mod Y to resent Msg3.

[0187] Optionally, the first device determines the frequency offset coefficient R' of the first frequency domain resource based on at least one of the first offset value (offset), the first numerical value Y, and the frequency offset coefficient R of the previously transmitted second information. The first numerical value is used to obtain the frequency offset coefficient of the first frequency domain resource by taking the remainder of the sum of the frequency offset coefficient and the offset value. The first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource. Optionally, there is a functional relationship between the first offset value and the first numerical value. For example, the first offset value is half of the first numerical value. Optionally, the first numerical value is specified by a communication protocol or determined by an A-IOT paging message or a QueryRep. The QueryRep indicates the boundary of a slot or access occasion. For example, the frequency offset coefficient of the first frequency domain resource is determined using the following formula: R' = (R + offset) mod Y.

[0188] In some embodiments, the second information is transmitted using chip parameters that are the same as those used in the previous transmission of the second information. Optionally, the chip parameters include chip length or chip rate. For example, the chip length used for retransmitting the second information is the same as the chip length used in the previous transmission. Another example is that the chip rate used for retransmitting the second information is the same as the chip rate used in the previous transmission.

[0189] It should be noted that the above embodiment is illustrated by taking the determination of the first frequency domain resource based on the frequency domain resource of the previous transmission of the second information as an example. In another embodiment, the first frequency domain resource can also be determined based on the frequency domain resource of the transmission of the third information, which will be explained in detail below.

[0190] In some embodiments, the first information does not include first resource scheduling information, and the first frequency domain resource is determined based on the second frequency domain resource. The first resource scheduling information is used to indicate the frequency domain resource for retransmitting the second information. In this embodiment, if the first information does not include first resource scheduling information, it indicates that the second device did not directly indicate the frequency domain resource for retransmitting the second information through the first information, and the first frequency domain resource needs to be determined based on the second frequency domain resource. Optionally, determining the first frequency domain resource based on the second frequency domain resource includes determining the second frequency domain resource as the first frequency domain resource.

[0191] Optionally, the second frequency domain resource refers to the frequency domain resource used to send the third information, and the third information refers to the information used to trigger the random access procedure. In this embodiment of the disclosure, since the first device has already sent the third information, the first device can reuse the frequency domain resource used when sending the third information to send the second information. In addition, the second device does not need to determine the first frequency domain resource based on the first resource scheduling information, which can save signaling consumption and improve resource utilization.

[0192] Optionally, the first information is the information received for the first time during the random access process. Specifically, the first information is the information received for the first time during the random access process that has the function of instructing the transmission of the second information.

[0193] In this embodiment of the disclosure, when the first information is information received for the first time during random access, the first device determines the frequency domain resources used when sending the third information as the first frequency domain resources. Further, when the first information does not include first resource scheduling information and the first information is information received for the first time during random access, the first device determines the frequency domain resources used when sending the third information as the first frequency domain resources.

[0194] For example, taking Msg1 as the third message, Msg2 as the first and fourth messages, and Msg3 as the second message as an example, as shown in Figure 2D, the first device sends the third message Msg1. After receiving Msg1, the second device sends Msg2. However, the first device does not successfully receive the fourth message Msg2. Then, Msg3 will not be sent on the frequency domain resources scheduled for Msg2. The first device then sends the first message Msg2 again. This Msg2 is the first Msg2 received by the first device, indicating that the second message should be resent. Therefore, Msg3 is resent using the same frequency domain resources as Msg1.

[0195] Optionally, the first device determines the frequency offset coefficient of the third information as the frequency offset coefficient of the first frequency domain resource, and determines the first frequency domain resource based on the frequency offset coefficient of the first frequency domain resource.

[0196] Optionally, the first device determines the first frequency domain resource based on at least one of the second offset value, the second numerical value, and the frequency offset coefficient of the third information, wherein the second numerical value is used to take the remainder of the sum of the frequency offset coefficient and the second offset value.

[0197] In this embodiment of the disclosure, the scheme for determining the frequency offset coefficient of the first frequency domain resource based on the frequency offset coefficient of the third information is similar to the scheme for determining the frequency offset coefficient of the first frequency domain resource based on the frequency offset coefficient of the second information in the above embodiment, and will not be described again here.

[0198] In some embodiments, second information is transmitted using chip parameters, which are the same as those used to transmit third information. Optionally, the chip parameters include chip length or chip rate. For example, the chip length used to retransmit the second information is the same as the chip length used to transmit the third information. As another example, the chip rate used to retransmit the second information is the same as the chip rate used to transmit the third information.

[0199] It should be noted that the above embodiments are all illustrated using the example of the first information not including the first resource scheduling information. However, in another embodiment, there is a case where the first information includes the first resource scheduling information.

[0200] In some embodiments, the first information includes first resource scheduling information, and the first frequency domain resources are determined based on the frequency domain resources indicated by the first resource scheduling information. Alternatively, it can be understood that the second device can directly schedule frequency domain resources for the first device to retransmit the second information based on the first resource scheduling information.

[0201] For example, taking Msg2 as the first and fourth information and Msg3 as the second information, as shown in Figure 2E, the second device sends the fourth information Msg2, and the first device successfully receives the fourth information Msg2. Then, it fails to send Msg3 on the frequency domain resources scheduled by Msg2. The first device then sends the first information Msg2, which indicates that the second information should be resent. Then, Msg3 is resent using the frequency domain resources indicated by the resource scheduling information included in Msg2.

[0202] Optionally, the first resource scheduling information includes identification information, which is used to indicate the frequency offset coefficient, and the frequency offset coefficient is used to determine the first frequency domain resource.

[0203] Optionally, the first resource scheduling information includes chip parameters, which are used to send the second information. Optionally, the chip parameters include chip length or chip rate.

[0204] It should be noted that in this embodiment, the first device and the second device determine the first time domain resource in the same way, so that both the first device and the second device have the same understanding to determine the same first time domain resource, thereby ensuring that the second information is sent or received in the same first time domain resource.

[0205] Step S2106: The first device retransmits the second information based on the first frequency domain resources.

[0206] In this embodiment of the disclosure, after the first device determines the first frequency domain resource, it can resend the second information based on the first frequency domain resource.

[0207] In some embodiments, the second device receives the second information retransmitted by the first device based on the first frequency domain resources.

[0208] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2106. For example, at least one of steps S2101 to S2106 may be implemented as an independent embodiment, but is not limited thereto.

[0209] In some embodiments, at least one of steps S2102 to S2106 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0210] It should be noted that the embodiments disclosed herein are illustrated using the determination of frequency domain resources as an example. In another embodiment, time domain resources can also be determined, and then the second information can be retransmitted based on the determined time domain resources.

[0211] Figure 2F is an interactive schematic diagram of an information retransmission method according to an embodiment of the present disclosure. As shown in Figure 2F, the present disclosure relates to an information retransmission method, which includes:

[0212] Step S2201: The first device sends third information to the second device.

[0213] Step S2201 is similar to step S2101 in the embodiment shown in Figure 2A above, and will not be described again here.

[0214] In step S2202, the second device sends the fourth information to the first device.

[0215] Step S2202 is similar to step S2102 in the embodiment shown in Figure 2A above, and will not be described again here.

[0216] Step S2203: The first device sends the second information to the second device.

[0217] Step S2203 is similar to step S2103 in the embodiment shown in Figure 2A above, and will not be described again here.

[0218] Step S2204: The second device sends the first information to the first device.

[0219] In some embodiments, the first information is used to instruct the first device to resend the second information, the second information carrying the identifier of the first device.

[0220] Step S2204 is similar to step S2104 in the embodiment shown in Figure 2A above, and will not be described again here.

[0221] Step S2205: The first device determines the first time domain resource based on the first information.

[0222] In some embodiments, the first time-domain resource is used to transmit the second information. Alternatively, the first time-domain resource is used to retransmit the second information. Other descriptions are also possible; this disclosure does not limit the retransmission.

[0223] In some embodiments, the first information does not include the second resource scheduling information, and the first device determines the first time-domain resource based on the second time-domain resource. The second resource scheduling information is used to indicate the time-domain resource for retransmitting the second information. In this embodiment, if the first information does not include the second resource scheduling information, it indicates that the second device did not directly indicate the time-domain resource for retransmitting the second information through the first information, and it is necessary to determine the first time-domain resource based on the second time-domain resource. Optionally, determining the first time-domain resource based on the second time-domain resource includes determining the second time-domain resource as the first time-domain resource.

[0224] Optionally, the second time-domain resource refers to the time-domain resource at the same location used when the second information was previously transmitted. In this embodiment, since the first device has already transmitted the second information, it can reuse the time-domain resource at the same location used when the second information was previously transmitted to transmit the second information. Furthermore, the second device does not need to determine the first time-domain resource based on the second resource scheduling information, which can save signaling consumption and improve resource utilization. It should be noted that the previously transmitted second information can be the second information initially transmitted during random access or the second information that has already been retransmitted.

[0225] Optionally, the first information is not the first information received during the random access process. Specifically, the first information is not the first information received during the random access process that has the same function as the first information. Alternatively, it can be said that the first information is not the first information received during the random access process that indicates the transmission of the second information.

[0226] In this embodiment of the disclosure, if the first information is not the first information received during the random access process, the first device determines the time-domain resource at the same position as the time-domain resource used when the second information was previously sent as the first time-domain resource. Further, if the first information does not include the second resource scheduling information and the first information is not the first information received during the random access process, the first device determines the time-domain resource at the same position as the time-domain resource used when the second information was previously sent as the first time-domain resource.

[0227] Optionally, the second time-domain resource refers to the time-domain resource at the same location used when sending the third information, and the third information refers to the information used to trigger the random access procedure. In this embodiment of the disclosure, since the first device has already sent the third information, the first device can reuse the time-domain resource at the same location used when sending the third information, and then send the second information. In addition, the second device does not need to determine the first time-domain resource based on the second resource scheduling information, which can save signaling consumption and improve resource utilization.

[0228] Optionally, the first information is the information received for the first time during the random access process. Specifically, the first information is the information received for the first time during the random access process that has the function of instructing the transmission of the second information.

[0229] In this embodiment of the disclosure, when the first information is information received for the first time during random access, the first device determines the time-domain resources at the same location used when sending the third information as the first frequency-domain resources. Further, when the first information does not include second resource scheduling information and the first information is information received for the first time during random access, the first device determines the time-domain resources at the same location used when sending the third information as the first time-domain resources.

[0230] In some embodiments, the first information includes second resource scheduling information, and the time-domain resource indicated by the second resource scheduling information is determined as the first time-domain resource. Alternatively, it can be understood that the second device can directly schedule time-domain resources for the first device to retransmit the second information based on the second resource scheduling information.

[0231] It should be noted that in this embodiment, the first device and the second device determine the first time domain resource in the same way, so that both the first device and the second device have the same understanding to determine the same first time domain resource, thereby ensuring that the second information is sent or received in the same first time domain resource.

[0232] Step S2206: The first device retransmits the second information based on the first time domain resources.

[0233] In this embodiment of the disclosure, after the first device determines the first time domain resource, it can resend the second information based on the first time domain resource.

[0234] In some embodiments, the second device may also receive the second information retransmitted by the first device based on the first time domain resources.

[0235] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0236] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0237] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0238] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0239] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0240] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0241] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".

[0242] In some embodiments, the terms “radio”, “wireless”, “radio access network (RAN)”, “access network (AN)”, and “RAN-based” can be used interchangeably.

[0243] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0244] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.

[0245] In some embodiments, the terms “resource block (RB)”, “physical resource block (PRB)”, “sub-carrier group (SCG)”, “resource element group (REG)”, “PRB pair”, “RB pair”, “resource element (RE)”, and “sub-carrier” can be used interchangeably.

[0246] In some embodiments, terms such as wireless access scheme and waveform can be used interchangeably.

[0247] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) status", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", and "panel" can be used interchangeably.

[0248] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, and “transmission time interval (TTI)” can be used interchangeably.

[0249] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0250] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data and / or instructions received; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0251] In some embodiments, if an arrow in the interaction diagram representing the sending of information, signaling, etc. from one subject to another passes through other subjects, it can be interpreted as the information being forwarded from one subject to another via other subjects, or it can be interpreted as the information being sent from one subject to another without passing through other subjects.

[0252] The communication method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2206. For example, at least one of steps S2201 to S2206 may be implemented as an independent embodiment, but is not limited thereto.

[0253] In some embodiments, at least one of steps S2202 to S2206 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0254] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0255] Figure 3A is an interactive schematic diagram of an information retransmission method according to an embodiment of the present disclosure. As shown in Figure 3A, the present disclosure relates to an information retransmission method, which includes:

[0256] Step S3101: The first device receives the first information sent by the second device.

[0257] In some embodiments, the first information is used to instruct the first device to resend the second information, the second information carrying the identifier of the first device.

[0258] Step S3101 is similar to step S2101 in the embodiment shown in Figure 2A above, and will not be described again here.

[0259] In step S3102, the first device determines the first frequency domain resource based on the first information.

[0260] Step S3102 is similar to step S2102 in the embodiment shown in Figure 2A above, and will not be described again here.

[0261] In some embodiments, determining the first frequency domain resource based on the first information includes:

[0262] The first information does not include the first resource scheduling information. The first frequency domain resource is determined based on the second frequency domain resource. The first resource scheduling information is used to indicate the frequency domain resource for retransmitting the second information.

[0263] In some embodiments, the second frequency domain resource refers to the frequency domain resource used when the second information was previously transmitted;

[0264] Determining the first frequency domain resource based on the second frequency domain resource includes:

[0265] The frequency offset coefficient of the previously transmitted second information is determined as the frequency offset coefficient of the first frequency domain resource, and the first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource; or,

[0266] The frequency offset coefficient R' of the first frequency domain resource is determined based on at least one of the first offset value offset, the first value Y, and the frequency offset coefficient R of the second information sent in the previous transmission. The first value is used to obtain the frequency offset coefficient of the first frequency domain resource by taking the remainder of the sum of the frequency offset coefficient and the offset value. The first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource.

[0267] In some embodiments, the second frequency domain resource refers to the frequency domain resource for transmitting the third information, and the third information refers to information used to trigger a random access procedure.

[0268] Determining the first frequency domain resource based on the second frequency domain resource includes:

[0269] The frequency offset coefficient of the third information is determined as the frequency offset coefficient of the first frequency domain resource, and the first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource; or...

[0270] The first frequency domain resource is determined based on at least one of the second offset value, the second numerical value, and the frequency offset coefficient of the third information, wherein the second numerical value is used to take the remainder of the sum of the frequency offset coefficient and the second offset value.

[0271] In some embodiments, the method further includes:

[0272] The second information is sent using chip parameters, which are the same as those used in the previous transmission of the second information or the transmission of the third information.

[0273] In some embodiments, determining the first frequency domain resource based on the first information includes:

[0274] The first information includes first resource scheduling information, and the first frequency domain resource is determined based on the frequency domain resource indicated by the first resource scheduling information.

[0275] In some embodiments, the first resource scheduling information includes identification information, which is used to indicate a frequency offset coefficient, and the frequency offset coefficient is used to determine the first frequency domain resource.

[0276] In some embodiments, the first resource scheduling information includes chip parameters, which are used to send the second information.

[0277] In some embodiments, the method further includes:

[0278] Based on the first information, a first time-domain resource is determined, and the first time-domain resource is used to send the second information.

[0279] In some embodiments, determining the first time-domain resource based on the first information includes:

[0280] The first information does not include the second resource scheduling information. The first time domain resource is determined based on the second time domain resource. The second resource scheduling information is used to indicate the time domain resource for retransmitting the second information.

[0281] In some embodiments, the second time-domain resource refers to the time-domain resource at the same location used when the second information was last sent.

[0282] In some embodiments, the first information is not the information received for the first time during the random access process.

[0283] In some embodiments, the second time-domain resource refers to the time-domain resource at the same location used when sending the third information, and the third information refers to information used to trigger a random access procedure.

[0284] In some embodiments, the first information is the information received for the first time during the random access process.

[0285] In some embodiments, determining the first time-domain resource based on the first information includes:

[0286] The first information includes second resource scheduling information, and the time-domain resource indicated by the second resource scheduling information is determined as the first time-domain resource.

[0287] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0288] Figure 3B is an interactive schematic diagram of an information retransmission method according to an embodiment of the present disclosure. As shown in Figure 3B, the present disclosure relates to an information retransmission method, which includes:

[0289] Step S3201: The second device sends the first information to the first device.

[0290] In some embodiments, the first information is used to instruct the first device to resend the second information, the second information carrying the identifier of the first device.

[0291] In step S3202, the second device receives the second information retransmitted by the first device based on the first frequency domain resources.

[0292] In some embodiments, the first information does not include the first resource scheduling information, the first frequency domain resource is determined based on the second frequency domain resource, and the first resource scheduling information is used to indicate the frequency domain resource for retransmitting the second information.

[0293] In some embodiments, the second frequency domain resource refers to the frequency domain resource used when the second information was previously transmitted;

[0294] The frequency offset coefficient of the first frequency domain resource is the frequency offset coefficient of the second information previously transmitted, and the first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource; or,

[0295] The frequency offset coefficient of the first frequency domain resource is obtained by taking the remainder of the sum of the frequency offset coefficient and the offset value based on the first value. The frequency offset coefficient R' of the first frequency domain resource is determined based on at least one of the first offset value offset, the first value Y, and the frequency offset coefficient R of the second information sent in the last time. The first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource.

[0296] In some embodiments, the second frequency domain resource refers to the frequency domain resource for transmitting the third information, and the third information refers to information used to trigger a random access procedure.

[0297] The first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource; or,

[0298] The first frequency domain resource is determined based on at least one of the second offset value, the second numerical value, and the frequency offset coefficient of the third information, wherein the second numerical value is used to take the remainder of the sum of the frequency offset coefficient and the second offset value.

[0299] In some embodiments, the method further includes:

[0300] The second information is received using chip parameters, which are the same as those used in the previous transmission of the second information or the transmission of the third information.

[0301] In some embodiments, the first information includes first resource scheduling information, and the first frequency domain resource is determined based on the frequency domain resource indicated by the first resource scheduling information.

[0302] In some embodiments, the first resource scheduling information includes identification information, which is used to indicate a frequency offset coefficient, and the frequency offset coefficient is used to determine the first frequency domain resource.

[0303] In some embodiments, the first resource scheduling information includes chip parameters, which are used to send the second information.

[0304] In some embodiments, a first time-domain resource is determined based on the first information, and the first time-domain resource is used to send the first information.

[0305] In some embodiments, the first information does not include the second resource scheduling information, the first time-domain resource is determined based on the second time-domain resource, and the second resource scheduling information is used to indicate the time-domain resource for retransmitting the second information.

[0306] In some embodiments, the second time-domain resource refers to the time-domain resource at the same location used when the second information was last sent.

[0307] In some embodiments, the first information is not the information received for the first time during the random access process.

[0308] In some embodiments, the second time-domain resource refers to the time-domain resource at the same location used when sending the third information, and the third information refers to information used to trigger a random access procedure.

[0309] In some embodiments, the first information is the information received for the first time during the random access process.

[0310] In some embodiments, the first information includes second resource scheduling information, and the first time-domain resource is the time-domain resource indicated by the second resource scheduling information.

[0311] Figure 4 is a flowchart illustrating an information retransmission method according to an embodiment of the present disclosure. As shown in Figure 4, this disclosure relates to an information retransmission method, which includes:

[0312] In step S4101, the Device determines the retransmission resources for Msg 3 using the default mechanism.

[0313] In addition, the reader device will also determine the retransmission resources for Msg 3 through a default mechanism.

[0314] In this context, the Device refers to the first device in the above embodiments. The reader device refers to the second device in the above embodiments. The default mechanism can be understood as the method described above for determining frequency domain resources or time domain resources.

[0315] Key point 1: The default resource determination mechanism, where the Device determines the retransmission resources for Msg 3:

[0316] In some embodiments, when the Device receives Msg 2 (Msg 2' in the figure below) indicating that Msg 3 should be retransmitted, if this is not the first time the Device has received the corresponding Msg 2 used to schedule the transmission of Msg 3, if it does not contain frequency point or frequency domain resource indication information for Msg 3, or does not contain any corresponding Msg 3 resource scheduling indication information, then the Device determines the frequency point or frequency domain resource information of Msg 3 according to the default mechanism.

[0317] Optionally, Msg 3 retransmissions use the same frequency point or frequency domain resources as the previous Msg 3 transmission (which may be the initial transmission or a retransmission), and further, use the same chip length or chip rate for D2R (PDRCH) data transmission.

[0318] Specifically, the device transmits Msg 3 data this time using the same R value as the previous Msg 3 transmission. The R value represents the frequency offset coefficient, which represents the number of times the codeword is repeated after Manchester encoding within one bit duration. Alternatively, it can be multiplied by the square wave of the chip length corresponding to the figure below to achieve the same effect.

[0319] Optionally, if it contains frequency point or frequency domain resource indication information for Msg 3, then the Device determines the frequency point or frequency domain resource information of Msg 3 according to the indication of Msg 2, specifically:

[0320] The frequency point indication information can be an index or an item in a table, indicating the corresponding spectrum shift coefficient R. The device then performs the above operation according to the indicated frequency shift coefficient R to obtain the corresponding frequency point or frequency domain resources for PDRCH or R2D data transmission.

[0321] Furthermore, this indication information may also include the corresponding chip length or chip speed information. The device then obtains the corresponding frequency point and frequency domain resources according to this indication and the frequency shift coefficient R to perform D2R (PDRCH) data transmission. It should be noted that the chip length or chip speed indicated by this indication information may differ from Msg 1.

[0322] In some embodiments, when the Device receives Msg 2 indicating a retransmission of Msg 3, if this is the first time the Device has received a corresponding Msg 2 used to schedule the transmission of Msg 3 (representing that the Device sent a miss detection for the previous Msg 2), and if it does not contain frequency point or frequency domain resource indication information for Msg 3, or does not contain any corresponding Msg 3 resource scheduling indication information, then the Device determines the frequency point or frequency domain resource information of Msg 3 according to the default mechanism, specifically:

[0323] Msg 3 retransmission uses the same frequency point or frequency domain resources as Msg 1 transmission, and further, uses the same chip length or chip rate for D2R (PDRCH) data transmission;

[0324] Specifically, the Device uses the same R value as when sending Msg 1 for this Msg 3 data transmission. The R value represents the frequency offset coefficient, which represents the number of times the codeword is repeated after Manchester encoding within one bit duration. Alternatively, it can be multiplied by the square wave of the chip length corresponding to the above figure to achieve the same effect, which will not be elaborated here.

[0325] Furthermore, the above mechanism (using the same resources as the previous Msg 3 transmission, or re-determining resources according to the instructions of Msg 2) can be used not only for determining frequency domain resources, but also for determining time domain resources, for example, for determining time domain resources within the current access occasion.

[0326] Key Point 2: The default resource determination mechanism: The device determines the retransmission resources for Msg 3, and obtains frequency domain diversity gain by using different frequency points or frequency domain resources through multiple transmissions of Msg 3.

[0327] When the Device receives Msg 2 (Msg 2' in the diagram below) indicating that Msg 3 should be retransmitted, if this is not the first time the Device has received a corresponding Msg 2 used to schedule the transmission of Msg 3, and if it does not contain frequency point or frequency domain resource indication information for Msg 3, or does not contain any corresponding Msg 3 resource scheduling indication information, then the Device determines the frequency point or frequency domain resource information of Msg 3 according to the default mechanism. Specifically:

[0328] The frequency point or frequency domain resource used for Msg 3 retransmission and the frequency point or frequency domain resource used in the previous Msg 3 transmission (which may be the initial transmission or a retransmission) are related by R' = (R + offset) mod Y.

[0329] Where R is the frequency shift coefficient used in the previous Msg 3 transmission, R' is the frequency shift coefficient used in the current Msg 3 transmission, offset is a predefined value of the protocol, or a value related to the Y value, such as Y / 2, or a value indicated in the A-IOT paging message / QueryRep (indicating the boundary of a slot or access occasion; currently, A-IOT does not restrict the message name); the Y value is predefined or indicated in the A-IOT paging message / QueryRep (indicating the boundary of a slot or access occasion; currently, A-IOT does not restrict the message name).

[0330] Furthermore, D2R (PDRCH) data transfer can be performed using the same chip length or chip rate;

[0331] Specifically, the Device uses the same mechanism as in key point 1 to determine frequency points or frequency domain resources, which will not be elaborated here.

[0332] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0333] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0334] 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.

[0335] In this embodiment, 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 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. Furthermore, 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), or a Deep Learning Processing Unit (DPU).

[0336] Figure 5A is a schematic diagram of the structure of a terminal according to an embodiment of this disclosure. Terminal 5100 is used to execute any of the above methods. In some embodiments, as shown in Figure 5A, terminal 5100 may include at least one of a transceiver module 5101, a processing module 5102, etc. In some embodiments, the transceiver module 5101 is used to receive first information sent by a second device, the first information being used to instruct the first device to retransmit second information, the second information carrying the identifier of the first device. The processing module 5102 is used to determine a first frequency domain resource based on the first information, the first frequency domain resource being used to retransmit the second information. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving performed by terminal 101 in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to execute at least one of other steps performed by terminal 5100 in any of the above methods (e.g., step S2103, but not limited thereto), which will not be elaborated here.

[0337] Figure 5B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. The network device 5200 is used to perform any of the above methods. In some embodiments, as shown in Figure 5B, the network device 5200 may include at least one of a transceiver module 5201, a processing module 5202, etc. In some embodiments, the transceiver module 5201 is used to send first information to a first device, the first information being used to instruct the first device to retransmit second information, the second information carrying the identifier of the first device. The processing module 5202 is used to receive the second information retransmitted by the first device based on a first frequency domain resource, the first frequency domain resource being determined based on the first information. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device 5200 in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to perform at least one of the other steps performed by the network device 5200 in any of the above methods, which will not be elaborated here.

[0338] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0339] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0340] In some embodiments, the processing module can be replaced by the processor, and the transceiver module can be replaced by the transceiver.

[0341] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), 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 methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0342] As shown in Figure 6A, the communication device 6100 is used to execute any of the above methods. In some embodiments, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0343] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps (e.g., steps S2103, S2104, but not limited thereto) in the above method, such as sending and / or receiving, and the processor 6101 performs at least one of other steps (e.g., steps S2101, S2102, S2105, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0344] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the communication device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6102 and can be used to receive data and / or instructions from the memory 6102 or other devices, and can be used to send data and / or instructions to the memory 6102 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6102 and send the data and / or instructions to the processor 6101.

[0345] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (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.

[0346] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6B, but it is not limited thereto.

[0347] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0348] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.

[0349] In some embodiments, the interface circuit 6202 performs at least one of the communication steps (e.g., steps S2103, S2104, but not limited thereto) in the above-described method, such as sending and / or receiving. For example, the interface circuit 6202 performing the communication steps (e.g., sending and / or receiving) in the above-described method means that the interface circuit 6202 performs data and / or instruction interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of other steps (e.g., steps S2101, S2102, but not limited thereto).

[0350] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0351] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0352] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0353] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. An information retransmission method, wherein, The method is performed by a first device, and the method includes: Receive first information sent by the second device, the first information being used to instruct the first device to resend the second information, the second information carrying the identifier of the first device; Based on the first information, a first frequency domain resource is determined, and the first frequency domain resource is used to retransmit the second information.

2. The method of claim 1, wherein, The step of determining the first frequency domain resource based on the first information includes: The first information does not include the first resource scheduling information. The first frequency domain resource is determined based on the second frequency domain resource. The first resource scheduling information is used to indicate the frequency domain resource for retransmitting the second information.

3. The method according to claim 2, wherein, The second frequency domain resource refers to the frequency domain resource used when the second information was last transmitted; Determining the first frequency domain resource based on the second frequency domain resource includes: The frequency offset coefficient of the previously transmitted second information is determined as the frequency offset coefficient of the first frequency domain resource, and the first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource. or, The frequency offset coefficient R' of the first frequency domain resource is determined based on at least one of the first offset value offset, the first value Y, and the frequency offset coefficient R of the second information sent in the previous transmission. The first value is used to obtain the frequency offset coefficient of the first frequency domain resource by taking the remainder of the sum of the frequency offset coefficient and the offset value. The first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource.

4. The method according to claim 2, wherein, The second frequency domain resource refers to the frequency domain resource for transmitting the third information, which is information used to trigger the random access procedure; Determining the first frequency domain resource based on the second frequency domain resource includes: The frequency offset coefficient of the third information is determined as the frequency offset coefficient of the first frequency domain resource, and the first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource. or, The first frequency domain resource is determined based on at least one of the second offset value, the second numerical value, and the frequency offset coefficient of the third information, wherein the second numerical value is used to take the remainder of the sum of the frequency offset coefficient and the second offset value.

5. The method according to claim 3 or 4, wherein, The method further includes: The second information is sent using chip parameters, which are the same as those used in the previous transmission of the second information or the transmission of the third information.

6. The method according to claim 1, wherein, The step of determining the first frequency domain resource based on the first information includes: The first information includes first resource scheduling information, and the first frequency domain resource is determined based on the frequency domain resource indicated by the first resource scheduling information.

7. The method according to claim 6, wherein, The first resource scheduling information includes identification information, which is used to indicate a frequency offset coefficient, and the frequency offset coefficient is used to determine the first frequency domain resource.

8. The method according to claim 6, wherein, The first resource scheduling information includes chip parameters, which are used to send the second information.

9. The method according to any one of claims 1 to 8, wherein, The method further includes: Based on the first information, a first time-domain resource is determined, and the first time-domain resource is used to send the second information.

10. The method according to claim 9, wherein, The step of determining the first time-domain resource based on the first information includes: The first information does not include the second resource scheduling information. The first time domain resource is determined based on the second time domain resource. The second resource scheduling information is used to indicate the time domain resource for retransmitting the second information.

11. The method according to claim 10, wherein, The second time-domain resource refers to the time-domain resource at the same location used when the second information was sent last time.

12. The method according to claim 3 or 11, wherein, The first piece of information is not the first piece of information received during the random access process.

13. The method according to claim 10, wherein, The second time-domain resource refers to the time-domain resource at the same location used when sending the third information, and the third information refers to the information used to trigger the random access procedure.

14. The method according to claim 4 or 13, wherein, The first information is the information received for the first time during the random access process.

15. The method according to claim 9, wherein, The step of determining the first time-domain resource based on the first information includes: The first information includes second resource scheduling information, and the time-domain resource indicated by the second resource scheduling information is determined as the first time-domain resource.

16. A method for retransmitting information, wherein, The method is performed by a second device, and the method includes: Send a first message to the first device, the first message being used to instruct the first device to resend a second message, the second message carrying the identifier of the first device; The second information retransmitted by the first device is received based on the first frequency domain resources, and the first frequency domain resources are determined based on the first information.

17. The method according to claim 16, wherein, The first information does not include the first resource scheduling information, the first frequency domain resource is determined based on the second frequency domain resource, and the first resource scheduling information is used to indicate the frequency domain resource for retransmitting the second information.

18. The method according to claim 17, wherein, The second frequency domain resource refers to the frequency domain resource used when the second information was last transmitted; The frequency offset coefficient of the first frequency domain resource is the frequency offset coefficient of the second information previously transmitted, and the first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource; or, The frequency offset coefficient of the first frequency domain resource is obtained by taking the remainder of the sum of the frequency offset coefficient and the offset value based on the first value. The frequency offset coefficient R' of the first frequency domain resource is determined based on at least one of the first offset value offset, the first value Y, and the frequency offset coefficient R of the second information sent in the last time. The first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource.

19. The method according to claim 17, wherein, The second frequency domain resource refers to the frequency domain resource for transmitting the third information, which is information used to trigger the random access procedure; The first frequency domain resource is determined based on the frequency offset coefficient of the first frequency domain resource; or, The first frequency domain resource is determined based on at least one of the second offset value, the second numerical value, and the frequency offset coefficient of the third information, wherein the second numerical value is used to take the remainder of the sum of the frequency offset coefficient and the second offset value.

20. The method according to claim 18 or 19, wherein, The method further includes: The second information is received using chip parameters, which are the same as those used in the previous transmission of the second information or the transmission of the third information.

21. The method according to claim 16, wherein, The first information includes first resource scheduling information, and the first frequency domain resource is determined based on the frequency domain resource indicated by the first resource scheduling information.

22. The method according to claim 21, wherein, The first resource scheduling information includes identification information, which is used to indicate a frequency offset coefficient, and the frequency offset coefficient is used to determine the first frequency domain resource.

23. The method according to claim 21, wherein, The first resource scheduling information includes chip parameters, which are used to send the second information.

24. The method according to any one of claims 16 to 23, wherein, The first time-domain resource is determined based on the first information, and the first time-domain resource is used to send the first information.

25. The method according to claim 24, wherein, The first information does not include the second resource scheduling information. The first time-domain resource is determined based on the second time-domain resource. The second resource scheduling information is used to indicate the time-domain resource for retransmitting the second information.

26. The method of claim 25, wherein, The second time-domain resource refers to the time-domain resource at the same location used when the second information was sent last time.

27. The method according to claim 18 or 26, wherein, The first piece of information is not the first piece of information received during the random access process.

28. The method according to claim 25, wherein, The second time-domain resource refers to the time-domain resource at the same location used when sending the third information, and the third information refers to the information used to trigger the random access procedure.

29. The method according to claim 19 or 28, wherein, The first information is the information received for the first time during the random access process.

30. The method according to claim 24, wherein, The first information includes the second resource scheduling information, and the first time-domain resource is the time-domain resource indicated by the second resource scheduling information.

31. A communication device, wherein, The communication device is used to perform the information retransmission method according to any one of claims 1-15 or 16-30.

32. A communication system, wherein, The method includes at least one of a terminal and a network device, wherein the terminal is configured to implement the information retransmission method according to any one of claims 1-15, and the network device is configured to implement the information retransmission method according to any one of claims 16-30.

33. A storage medium storing instructions, wherein, When the instruction is executed on the communication device, the communication device performs the information retransmission method as described in any one of claims 1-30.

34. A program product comprising at least one of a program and instructions, wherein, When at least one of the programs or instructions is executed by the communication device, the information retransmission method according to any one of claims 1-30 is implemented.

Images