Mapping method and apparatus, and communication device, communication system and storage medium

Abstract

Provided in the present disclosure are a mapping method and apparatus, and a device and a storage medium. The method comprises: a first device determining at least one physical uplink shared channel resource unit (PRU) corresponding to one or more physical uplink shared channel occasions (POs) within one configured grant (CG) period; and the first device determining a mapping relationship between at least one synchronization signal block (SSB), which corresponds to the CG period, and the at least one PRU within the CG period. The method of the present disclosure can successfully realize an SSB-to-PRU mapping corresponding to a long CG period, such that a first device can subsequently realize, on the basis of the mapping relationship, indication with respect to an optimal beam, and can subsequently use the indicated optimal beam to transmit data, thereby improving the quality of communication.

Description

Mapping method and device, communication equipment, communication system, and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a mapping method and apparatus, a communication device, a communication system, and a storage medium. Background Art

[0002] In a communication system, a terminal usually performs small data packet transmission (SDT) during the initial access process to improve data transmission efficiency. Among them, the terminal usually performs SDT based on semi-static configuration. Optionally, the SDT process based on semi-static configuration is: when the terminal switches from the Radio Resource Control (RRC) connected state to the RRC inactive state (inactive), the network device configures a Configured Grant (CG) period to the terminal through an RRC Release (Release) message. The CG period includes the physical uplink shared channel (PUSCH) resource corresponding to the SDT transmission. Optionally, the PUSCH resource can have a mapping relationship (or an association relationship) with the synchronization signal block (SSB) to indicate the downlink beam corresponding to the SSB. Optionally, when the terminal uses PUSCH resources to send SDT, it can use the PUSCH resources mapped to the SSB corresponding to the downlink beam with the best beam quality to send SDT, so as to implicitly indicate the best downlink beam to the network device.

[0003] Summary of the Invention

[0004] The present disclosure provides a mapping method and apparatus, a communication device, a communication system, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a mapping method is proposed, including:

[0006] The first device determines at least one physical uplink shared channel resource unit PRU corresponding to one or more physical uplink shared channel opportunities PO within a configuration grant CG period;

[0007] The first device determines a mapping relationship between at least one synchronization signal block SSB corresponding to a CG period and at least one PRU within the CG period.

[0008] According to a second aspect of an embodiment of the present disclosure, a mapping method is proposed for use in a communication system, the communication system including a terminal and a network device, the method including at least one of the following:

[0009] The network device determines at least one physical uplink shared channel resource unit (PRU) corresponding to one or more physical uplink shared channel opportunities (PO) within a configuration grant (CG) period.

[0010] The network device determines a mapping relationship between at least one synchronization signal block SSB corresponding to a CG period and at least one PRU in the CG period;

[0011] The terminal determines at least one physical uplink shared channel resource unit PRU corresponding to one or more physical uplink shared channel opportunities PO within a configuration grant CG period;

[0012] The terminal determines the mapping relationship between at least one synchronization signal block SSB corresponding to the CG period and at least one PRU in the CG period.

[0013] According to a third aspect of an embodiment of the present disclosure, a first device is provided, including:

[0014] A processing module, configured to determine at least one physical uplink shared channel resource unit (PRU) corresponding to one or more physical uplink shared channel opportunities (PO) within a configuration grant (CG) period;

[0015] The processing module is also used to determine the mapping relationship between at least one synchronization signal block SSB corresponding to the CG period and at least one PRU in the CG period.

[0016] According to a fourth aspect of an embodiment of the present disclosure, a communication device is provided, including:

[0017] one or more processors;

[0018] The processor is used to call instructions to enable the communication device to execute the mapping method described in the first aspect.

[0019] According to a fifth aspect of an embodiment of the present disclosure, a communication system is proposed, characterized in that it includes a terminal and a network device, wherein the terminal or the network device is configured to implement the mapping method described in the first aspect.

[0020] According to a sixth aspect of an embodiment of the present disclosure, a storage medium is proposed, wherein the storage medium stores instructions, and is characterized in that when the instructions are executed on a communication device, the communication device executes the mapping method as described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0022] FIG1 is a schematic diagram of the architecture of some communication systems provided by embodiments of the present disclosure;

[0023] FIG2A is an interactive schematic diagram of a mapping method provided by an embodiment of the present disclosure;

[0024] FIG2B is a schematic diagram of a repeated transmission sequence between different POs provided by an embodiment of the present disclosure;

[0025] FIG2C is a schematic diagram of repeated transmissions between different POs provided by an embodiment of the present disclosure when alternating;

[0026] FIG3A is a schematic flow chart of a mapping method provided in yet another embodiment of the present disclosure;

[0027] FIG4A is a schematic flow chart of a mapping method provided in yet another embodiment of the present disclosure;

[0028] FIG5A is a schematic flow chart of a mapping method provided in yet another embodiment of the present disclosure;

[0029] FIG5B is a flowchart of a mapping method provided in yet another embodiment of the present disclosure;

[0030] 5C and 5D are diagrams showing resource mapping patterns according to an embodiment of the present disclosure;

[0031] FIG6 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure;

[0032] FIG7A is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0033] FIG7B is a schematic structural diagram of a chip provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] The embodiments of the present disclosure provide a mapping method and apparatus, a communication device, a communication system, and a storage medium.

[0035] In a first aspect, an embodiment of the present disclosure provides a mapping method, which is performed by a first device. The method includes:

[0036] The first device determines at least one physical uplink shared channel resource unit (PRU) corresponding to one or more physical uplink shared channel occasions (PO) within a configuration authorization CG period;

[0037] The first device determines a mapping relationship between at least one synchronization signal block (Synchronization Signal Block, SSB) corresponding to a (Configured Grant, CG) period and at least one PRU in the CG period.

[0038] In the above embodiment, when determining the mapping relationship between SSBs and PRUs, "one CG cycle" is used as the granularity, and all SSB indices are mapped to PRUs in the CG cycle for all SSBs corresponding to the CG cycle. The concept of "association cycle" in the related art does not exist. The association cycle is a concept introduced in the related art to ensure that all SSBs corresponding to the CG cycle can be mapped to PRUs. The association cycle may include at least one CG cycle, and the association cycle meets the following conditions: the number of PRUs in the association cycle is sufficient to ensure that all SSBs corresponding to the CG cycle can be mapped to PRUs in the association cycle. However, since RAN2 proposes to extend the CG cycle, for example, to extend the CG cycle to tens of minutes to several hours, and since the association cycle can only be up to 640 milliseconds (ms), when the CG cycle is extended to tens of minutes to several hours, the association cycle is shorter and the CG cycle is longer, so it is possible that the association cycle will not even include the PO in the CG cycle, and thus the association cycle will not include the PRU that can be mapped to the SSB. Based on this, in the embodiment of the present disclosure, when mapping the SSB to the PRU in the CG cycle for all SSBs in the CG cycle with "one CG cycle" as the granularity, since there is always at least one PRU corresponding to the CG cycle, even if the CG cycle is extended to tens of minutes to hours, it can be ensured that "the mapping of at least one SSB corresponding to the CG cycle to the PRU in the CG cycle" can be successfully achieved, thereby avoiding the situation that "in the related art, when mapping the SSB to the PRU in the associated cycle with the 'association cycle' as the granularity and for all SSBs in a CG cycle, since the CG cycle is extended, but the association cycle can only be up to 640ms at most, when determining the association cycle in the CG cycle, it is possible that the determined association cycle will not include the PO, and further the association cycle will not include the PRU that can be mapped to the SSB, resulting in the inability to achieve the PRU mapping in the association cycle of the SSB." It can be seen from this that the method disclosed in the present invention can successfully achieve the mapping of SSB to PRU corresponding to a longer CG period, so that the first device can subsequently implement the indication of the optimal beam based on the mapping relationship. For example, the first device can transmit data through the PRU mapped by the SSB corresponding to the optimal beam, thereby implicitly indicating the optimal beam, and subsequently the indicated optimal beam can be used to transmit data to improve communication quality.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, determining at least one PRU corresponding to one or more POs within a CG period includes:

[0040] Determine a first configuration, where the first configuration is used to configure at least one of the following: the number of POs in a CG period, and a demodulation reference signal (DMRS) configuration corresponding to the PO; wherein the DMRS configuration includes one or more of a DMRS mapping type, a DMRS port, and a DMRS scrambling identifier ID; wherein different DMRS scrambling IDs are used to generate different DMRS sequences;

[0041] Based on the first configuration, at least one PRU corresponding to one or more POs within a CG period is determined, and the at least one PRU is numbered in sequence; wherein, the resources occupied by each DMRS port corresponding to each DMRS sequence on each PO correspond to a PRU.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, the DMRS mapping type includes: DMRS type 1 and / or DMRS type 2;

[0043] The first configuration can configure N DMRS scrambling IDs, where N is a positive integer and N≤4.

[0044] In the above embodiment, a method is provided for a first device to determine at least one PRU corresponding to one or more POs within a CG cycle, so that the first device can successfully determine the one or more PRUs corresponding to the CG cycle, so that the mapping of at least one SSB corresponding to the CG cycle to the one or more PRUs can be successfully implemented subsequently, so that the first device can subsequently implement the indication of the best beam based on the mapping relationship. In addition, in the above embodiment, the first configuration can configure a CG cycle to include multiple POs, or the first configuration can configure up to 4 DMRS scrambling IDs, so that the number of PRUs corresponding to a CG cycle can be as large as possible. Even if more SSBs are configured for a CG cycle, it can still be ensured that each SSB can be mapped to a PRU, so that a CG cycle can support the configuration of more SSBs. At this time, when the first device is a terminal, the terminal can select the SSBindex corresponding to the best downlink beam from the beams associated with the more SSBs and indicate it to the network device. The network device side can identify the SSBindex indicated by the terminal and further determine the best downlink beam, thereby improving the communication quality.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, sequentially numbering the at least one PRU includes:

[0046] The CG period includes a PO, and the at least one PRU is numbered sequentially according to the first method;

[0047] The CG period includes multiple POs, and the at least one PRU is numbered in sequence according to the second method.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the first manner is:

[0049] First, the PRUs corresponding to the DMRS ports corresponding to the first DMRS sequence are numbered in sequence, and then the PRUs corresponding to the DMRS ports of the second DMRS sequence are numbered in sequence, until the PRUs corresponding to the DMRS ports corresponding to all DMRS sequences are numbered.

[0050] In combination with some embodiments of the first aspect, in some embodiments, the PO time domain position and / or PO frequency domain position between multiple POs within the CG period are different; wherein, the PO time domain position is: the time domain position where the PO is located, and the PO frequency domain position is: the frequency domain position where the PO is located.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, the second manner is:

[0052] The PRUs corresponding to the respective DMRS ports corresponding to all DMRS sequences of the PO at all PO frequency domain positions at the first PO time domain position of the CG period are numbered in sequence in a predetermined manner, and then the PRUs corresponding to the respective DMRS ports corresponding to all DMRS sequences of the PO at all PO frequency domain positions at the second PO time domain position of the CG period are numbered in sequence in a predetermined manner until the PRUs corresponding to the respective DMRS ports corresponding to all DMRS sequences of the PO at all PO frequency domain positions at all PO time domain positions within the CG period are numbered.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the predetermined method includes:

[0054] First, number the PRUs corresponding to each DMRS port corresponding to the first DMRS sequence of the PO at the first PO frequency domain position on the PO time domain position in sequence, and then number the PRUs corresponding to each DMRS port corresponding to the second DMRS sequence of the PO at the first PO frequency domain position on the PO time domain position in sequence to determine the numbering of the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at the first PO frequency domain position on the PO time domain position; then number the PRUs corresponding to each DMRS port corresponding to the first DMRS sequence of the PO at the second PO frequency domain position on the PO time domain position in sequence, and then number the PRUs corresponding to each DMRS port corresponding to the second DMRS sequence of the PO at the second PO frequency domain position on the PO time domain position in sequence to determine the numbering of the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at the second PO frequency domain position on the PO time domain position, until the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at all PO frequency domain positions on the PO time domain position are numbered.

[0055] In the above embodiment, a method is provided for a first device to number at least one PRU corresponding to a CG period, which is used to successfully number the at least one PRU so that the SSB to PRU mapping can be implemented in sequence according to the order of the numbered PRUs, thereby ensuring the convenience of SSB to PRU mapping.

[0056] In combination with some embodiments of the first aspect, in some embodiments, determining a mapping relationship between at least one SSB corresponding to a CG period and at least one PRU in the CG period includes:

[0057] Determine a second configuration, where the second configuration is used to configure at least one of the following: at least one SSB corresponding to the CG period, and a mapping ratio between the SSB and the PRU;

[0058] Based on the second configuration and the number of the at least one PRU, the mapping relationship between at least one SSB corresponding to the CG period and at least one PRU in the CG period is determined.

[0059] In the above embodiment, a method is provided for a first device to determine the mapping relationship between at least one SSB corresponding to the CG cycle and at least one PRU within the CG cycle, so as to successfully implement the "mapping of at least one SSB corresponding to the CG cycle to the PRU within the CG cycle", so that the first device can subsequently implement the indication of the optimal beam based on the mapping relationship to ensure communication quality.

[0060] In combination with some embodiments of the first aspect, in some embodiments, determining a mapping relationship between at least one SSB corresponding to a CG period and at least one PRU in the CG period includes at least one of the following:

[0061] Determine the mapping relationship between all SSBs corresponding to the CG period and the PRUs in the CG period, so as to complete a round of mapping from the SSBs in the CG period to the PRUs;

[0062] There are still PRUs that are not mapped to SSBs in the CG period, and the PRUs that are not mapped to SSBs can complete one round of mapping from SSBs to PRUs, and determine the mapping relationships between all SSBs corresponding to the CG period and the PRUs that are not mapped to SSBs in the CG period, so as to complete another round of mapping from SSBs to PRUs in the CG period;

[0063] There is no PRU not mapped to SSB in the CG period, and / or there is a PRU not mapped to SSB in the CG period, but the PRU not mapped to SSB cannot complete one round of mapping from SSB to PRU, then the mapping is stopped.

[0064] In combination with some embodiments of the first aspect, in some embodiments, the first configuration and / or the second configuration enables M rounds of mapping between all SSBs corresponding to the CG period to the PRUs in the CG period, where M is a positive integer.

[0065] In combination with some embodiments of the first aspect, in some embodiments, the first configuration and / or the second configuration enables M rounds of mapping between all SSBs corresponding to the CG period to the PRUs in the period, M is a positive integer, and there are no remaining PRUs that are not mapped.

[0066] In the above embodiment, when implementing the mapping of SSB to PRU, it is ensured that at least one round of mapping of SSB to PRU is completed, so that all SSBs corresponding to the CG period are mapped to PRUs respectively, thereby ensuring that the first device can implicitly indicate the beams corresponding to each SSB through the PRU mapped by each SSB, thereby ensuring the flexibility of the first device in implicitly indicating the optimal beam in the future.

[0067] In combination with some embodiments of the first aspect, in some embodiments, the CG period includes multiple POs, and each PO needs to be transmitted repeatedly, and the repeated transmission between different POs is performed sequentially or alternately.

[0068] In the above embodiment, a method is provided for "how to perform repeated transmission between different POs when the PO in the CG period needs to be repeatedly transmitted when the best beam is implicitly indicated", so that when the first device implicitly indicates the best beam, the repeated transmission of different POs can be ensured successfully, thereby ensuring communication stability.

[0069] In combination with some embodiments of the first aspect, in some embodiments, the first device is a terminal or a network device.

[0070] In the above embodiment, the first device may be a terminal or a network device. It can be seen that the terminal and the network device use the same method to determine the mapping relationship between at least one SSB corresponding to the CG period and at least one PRU within the CG period, which ensures that the terminal and the network device have a unified understanding of the "mapping relationship between SSB and PRU". Based on this, the terminal and the network device can respectively implement implicit indication of the best beam based on their own understanding of the "mapping relationship between SSB and PRU". For example, the terminal can implicitly indicate the best downlink beam to the network device using the mapping relationship between SSB and PRU understood by the terminal, and the network device can determine the best downlink beam implicitly indicated by the terminal based on the mapping relationship between SSB and PRU understood by the network device. Since the terminal and the network device have a unified understanding of the "mapping relationship between SSB and PRU", the best downlink beam determined by the network device is the best downlink beam implicitly indicated by the terminal, thereby ensuring the accuracy and stability of the best downlink beam indication. Moreover, since the terminal and the network device have a unified understanding of the "mapping relationship between SSB and PRU", there is no need for additional transmission between the terminal and the network device to inform the "mapping relationship between SSB and PRU", thereby saving resource overhead.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the first device is a terminal, and determining the second configuration includes:

[0072] The second configuration is sent by the receiving network device through a radio resource control RRC release message and / or a system information block (SIB) 1.

[0073] In the above embodiment, a method is provided for how the terminal determines the second configuration when the first device is a terminal, so that the terminal can successfully determine the second configuration so that the terminal can subsequently successfully determine the mapping relationship between SSB and PRU based on the second configuration, and implicitly indicate the best downlink beam to the network device based on the mapping relationship to ensure downlink communication quality.

[0074] In conjunction with some embodiments of the first aspect, in some embodiments, the first device is a terminal, and the method further includes:

[0075] Determine a target PRU, where the SSB mapped to the target PRU is associated with a target downlink beam, and the target PRU is used to indicate the target downlink beam;

[0076] The target PRU is used to send data to the network device.

[0077] In the above embodiment, a method is provided for the terminal to implicitly indicate the best downlink beam to the network device when the first device is a terminal, so that the terminal can successfully implicitly indicate the best downlink beam to the network device, so that the network device can determine the best downlink beam and send data to the terminal based on the best downlink beam to ensure the quality of downlink communication.

[0078] In combination with some embodiments of the first aspect, in some embodiments, the CG period is used for small data packet transmission SDT.

[0079] In a second aspect, an embodiment of the present disclosure provides a mapping method for a communication system, wherein the communication system includes a terminal and a network device, and the method includes at least one of the following:

[0080] The network device determines at least one physical uplink shared channel resource unit (PRU) corresponding to one or more physical uplink shared channel opportunities (PO) within a configuration grant (CG) period.

[0081] The network device determines a mapping relationship between at least one synchronization signal block SSB corresponding to a CG period and at least one PRU in the CG period;

[0082] The terminal determines at least one physical uplink shared channel resource unit PRU corresponding to one or more physical uplink shared channel opportunities PO within a configuration grant CG period;

[0083] The terminal determines the mapping relationship between at least one synchronization signal block SSB corresponding to the CG period and at least one PRU in the CG period.

[0084] In a third aspect, an embodiment of the present disclosure provides a first device, including:

[0085] A processing module, configured to determine at least one physical uplink shared channel resource unit (PRU) corresponding to one or more physical uplink shared channel opportunities (PO) within a configuration grant (CG) period;

[0086] The processing module is also used to determine the mapping relationship between at least one synchronization signal block SSB corresponding to the CG period and at least one PRU in the CG period.

[0087] In conjunction with some embodiments of the third aspect, in some embodiments, the processing module is further configured to:

[0088] Determine a first configuration, where the first configuration is used to configure at least one of the following: the number of POs in a CG period, and a demodulation reference signal (DMRS) configuration corresponding to the PO; wherein the DMRS configuration includes one or more of a DMRS mapping type, a DMRS port, and a DMRS scrambling identifier (ID); wherein different DMRS scrambling IDs are used to generate different DMRS sequences;

[0089] Based on the first configuration, at least one PRU corresponding to one or more POs within a CG period is determined, and the at least one PRU is numbered in sequence; wherein, the resources occupied by each DMRS port corresponding to each DMRS sequence on each PO correspond to a PRU.

[0090] In conjunction with some embodiments of the third aspect, in some embodiments, the DMRS mapping type includes: DMRS type 1 and / or DMRS type 2;

[0091] The first configuration can configure N DMRS scrambling IDs, where N is a positive integer and N≤4.

[0092] In conjunction with some embodiments of the third aspect, in some embodiments, the processing module is further configured to:

[0093] The CG period includes a PO, and the at least one PRU is numbered sequentially according to the first method;

[0094] The CG period includes multiple POs, and the at least one PRU is numbered in sequence according to the second method.

[0095] In conjunction with some embodiments of the third aspect, in some embodiments, the first manner is:

[0096] First, the PRUs corresponding to the DMRS ports corresponding to the first DMRS sequence are numbered in sequence, and then the PRUs corresponding to the DMRS ports of the second DMRS sequence are numbered in sequence, until the PRUs corresponding to the DMRS ports corresponding to all DMRS sequences are numbered.

[0097] In combination with some embodiments of the third aspect, in some embodiments, the PO time domain position and / or PO frequency domain position between multiple POs within the CG period are different; wherein, the PO time domain position is: the time domain position where the PO is located, and the PO frequency domain position is: the frequency domain position where the PO is located.

[0098] In conjunction with some embodiments of the third aspect, in some embodiments, the second manner is:

[0099] The PRUs corresponding to the respective DMRS ports corresponding to all DMRS sequences of the PO at all PO frequency domain positions at the first PO time domain position of the CG period are numbered in sequence in a predetermined manner, and then the PRUs corresponding to the respective DMRS ports corresponding to all DMRS sequences of the PO at all PO frequency domain positions at the second PO time domain position of the CG period are numbered in sequence in a predetermined manner until the PRUs corresponding to the respective DMRS ports corresponding to all DMRS sequences of the PO at all PO frequency domain positions at all PO time domain positions within the CG period are numbered.

[0100] In conjunction with some embodiments of the third aspect, in some embodiments, the predetermined method includes:

[0101] First, number the PRUs corresponding to each DMRS port corresponding to the first DMRS sequence of the PO at the first PO frequency domain position on the PO time domain position in sequence, and then number the PRUs corresponding to each DMRS port corresponding to the second DMRS sequence of the PO at the first PO frequency domain position on the PO time domain position in sequence to determine the numbering of the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at the first PO frequency domain position on the PO time domain position; then number the PRUs corresponding to each DMRS port corresponding to the first DMRS sequence of the PO at the second PO frequency domain position on the PO time domain position in sequence, and then number the PRUs corresponding to each DMRS port corresponding to the second DMRS sequence of the PO at the second PO frequency domain position on the PO time domain position in sequence to determine the numbering of the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at the second PO frequency domain position on the PO time domain position, until the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at all PO frequency domain positions on the PO time domain position are numbered.

[0102] In conjunction with some embodiments of the third aspect, in some embodiments, the processing module is further configured to:

[0103] Determine a second configuration, where the second configuration is used to configure at least one of the following: at least one SSB corresponding to the CG period, and a mapping ratio between the SSB and the PRU;

[0104] Based on the second configuration and the number of the at least one PRU, the mapping relationship between at least one SSB corresponding to the CG period and at least one PRU in the CG period is determined.

[0105] In conjunction with some embodiments of the third aspect, in some embodiments, the processing module is further configured to:

[0106] Determine the mapping relationship between all SSBs corresponding to the CG period and the PRUs in the CG period, so as to complete a round of mapping from the SSBs in the CG period to the PRUs;

[0107] There are still PRUs that are not mapped to SSBs in the CG period, and the PRUs that are not mapped to SSBs can complete one round of mapping from SSBs to PRUs, and determine the mapping relationships between all SSBs corresponding to the CG period and the PRUs that are not mapped to SSBs in the CG period, so as to complete another round of mapping from SSBs to PRUs in the CG period;

[0108] There is no PRU that is not mapped to the SSB in the CG period, and / or there is a PRU that is not mapped to the SSB in the CG period, but the PRU that is not mapped to the SSB cannot complete a round of mapping from SSB to PRU, and the mapping is stopped.

[0109] In combination with some embodiments of the third aspect, in some embodiments, the first configuration and / or the second configuration enables M rounds of mapping between all SSBs corresponding to the CG period to the PRUs in the CG period, where M is a positive integer.

[0110] In combination with some embodiments of the third aspect, in some embodiments, the first configuration and / or the second configuration enables M rounds of mapping between all SSBs corresponding to the CG period to the PRUs in the period, M is a positive integer, and there are no remaining PRUs that are not mapped.

[0111] In combination with some embodiments of the third aspect, in some embodiments, the CG period includes multiple POs, and each PO needs to be transmitted repeatedly, and the repeated transmission between different POs is performed sequentially or alternately.

[0112] In combination with some embodiments of the third aspect, in some embodiments, the first device is a terminal or a network device.

[0113] In conjunction with some embodiments of the third aspect, in some embodiments, the first device is a terminal, and the processing module is further configured to:

[0114] The second configuration is sent by the receiving network device through a radio resource control RRC release message and / or SIB1.

[0115] In conjunction with some embodiments of the third aspect, in some embodiments, the first device is a terminal, and the first device is further configured to:

[0116] Determine a target PRU, where the SSB mapped to the target PRU is associated with a target downlink beam, and the target PRU is used to indicate the target downlink beam;

[0117] The target PRU is used to send data to the network device.

[0118] In combination with some embodiments of the third aspect, in some embodiments, the CG period is used for small data packet transmission SDT.

[0119] In a fourth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; one or more memories for storing instructions; wherein the processor is used to call the instructions so that the communication device executes the mapping method described in the first aspect and the optional implementation method of the first aspect.

[0120] In a fifth aspect, an embodiment of the present disclosure proposes a communication system, which includes: a terminal and a network device; wherein the terminal and the network device are configured to execute the method described in the first aspect and the optional implementation of the first aspect.

[0121] In a sixth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the first aspect and the optional implementation method of the first aspect.

[0122] In a seventh aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the first aspect and the optional implementation method of the first aspect.

[0123] In an eighth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the first aspect and an optional implementation of the first aspect.

[0124] It is understandable that the above-mentioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0125] The present disclosure provides invention titles. In some embodiments, the terms "mapping method" and "information processing method," "information sending method," and "information receiving method" are interchangeable; the terms "communication device" and "information processing device," "information sending device," and "information receiving device" are interchangeable; and the terms "information processing system," "communication system," "information sending system," and "information receiving system" are interchangeable.

[0126] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0127] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0128] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0129] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0130] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0131] In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.

[0132] In the embodiments of the present disclosure, descriptions such as “at least one of A, B, C…”, “A and / or B and / or C…”, etc. include the situation where any one of A, B, C… exists alone, and also include any combination of any multiple of A, B, C…, and each situation can exist alone; for example, “at least one of A, B, C” includes the situation where A exists alone, B exists alone, C exists alone, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C; for example, A and / or B includes the situation where A exists alone, B exists alone, and the combination of A and B.

[0133] In some embodiments, descriptions such as "in one case A, in another case B," or "in response to one case A, in response to another case B," may include the following technical solutions depending on the situation: executing A independently of B (in some embodiments, A); executing B independently of A (in some embodiments, B); selectively executing A and B (in some embodiments, selecting between A and B); and executing both A and B (in some embodiments, A and B). The same applies when there are more branches, such as A, B, and C.

[0134] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0135] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0136] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0137] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0138] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0139] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0140] 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", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0141] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0142] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, it can also be called device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, language such as "uplink" and "downlink" can also be replaced by language corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0143] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0144] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0145] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0146] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0147] The correspondences shown in the tables of the present disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables of the present disclosure, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also adopt other names that can be understood by the communication device, and the values ​​or representations of the parameters may also adopt other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures may also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0148] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0149] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 may include at least one of a network device 101 and a terminal 102. The network device may include at least one of an access network device and a core network device.

[0150] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0151] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0152] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0153] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0154] In some embodiments, the core network device may be a device including one or more network elements, or may be multiple devices or a group of devices, each including all or part of one or more network elements. The network element may be virtual or physical. The core network, for example, includes at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC). Alternatively, the core network device may also be a location management function network element. Exemplarily, the location management function network element includes a location server (location server), which may be implemented as any one of the following: Location Management Function (LMF), Enhanced Serving Mobile Location Centre (E-SMLC), Secure User Plane Location (SUPL), and Secure User Plane Location Platform (SUPLLP).

[0155] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0156] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0157] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other mapping methods, and next-generation systems based on and extending these systems. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G) for application.

[0158] Optionally, the PUSCH resource used for SDT transmission in the CG period mentioned in the above background technology can be, for example, a physical uplink shared channel Occasion (PO), wherein a CG period can include at least one PO, and a PO can correspond to multiple physical uplink shared channel resource units (PRUs), that is, one PRU can correspond to one PO, or multiple PRUs can correspond to one PO. There can be a mapping relationship between SSB and PRU, and one SSB can be mapped to multiple PRUs; and / or, multiple SSBs can be mapped to one PRU. For example, H SSBs can be mapped to one PRU, and H can be configured by the network device. The value of H can be {1 / 8, 1 / 4, 1 / 2, 1, 2, 4, 8, 16}. Of course, other values ​​are also possible. When the value of H is 1 / 8, it means that 1 SSB is mapped to 8 PRUs. Optionally, in some embodiments, the network device usually configures at least one SSB for the CG period, wherein, in order to ensure that all SSBs corresponding to the CG period can be mapped to PRUs, the concept of an association period is introduced, which can be called: association period, SSB-to-PRU association period, association pattern period, etc., wherein the association period can include at least one CG period, and the association period satisfies the following conditions: the number of PRUs in the association period is sufficient to enable all SSBs corresponding to the CG period to be mapped to PRUs, or is called: the PRUs in the association period can at least complete one round of mapping of all SSBs corresponding to the CG period to PRUs, optionally, after one round of mapping, if there are remaining PRU resources, the next round of mapping can be continued until the remaining PRUs are insufficient to complete one round of mapping, and the remaining PRUs are regarded as unavailable resources. Therefore, by introducing the concept of an association period, all SSBs corresponding to the CG period are mapped with PRUs, so that the implicit indication of the beam corresponding to any SSB is realized based on the PRU mapped to any SSB corresponding to the CG period.

[0159] Currently, RAN2 has proposed in Release 18TEI to extend the CG cycle, for example, to tens of minutes or even hours. However, since the maximum length of the association cycle is only 640 milliseconds (ms), when the CG cycle is extended to tens of minutes or even hours, the association cycle is shorter, while the CG cycle is longer. This may result in the association cycle not even including the PO within the CG cycle, and thus not including the PRU that can be mapped to the SSB. In this case, the design of "at least one round of SSB-to-PRU mapping is completed within one association cycle" cannot be met. Therefore, it is necessary to consider redesigning the SSB-to-PRU mapping relationship.

[0160] FIG2A is an interactive diagram of a mapping method according to an embodiment of the present disclosure. As shown in FIG2A , the embodiment of the present disclosure relates to a mapping method for a communication system 100, the method comprising:

[0161] Step 2101: The network device sends a first configuration.

[0162] Optionally, the first configuration can be used to configure at least one of the following: the number of POs in a CG period, and the demodulation reference signal (DMRS) configuration corresponding to the PO.

[0163] Accordingly, the terminal may be configured accordingly according to the received first configuration.

[0164] Optionally, the above-mentioned PO can be understood as: the PUSCH resources occupied by the terminal for SDT transmission, and one CG period may include one or more POs.

[0165] Optionally, the one or more POs mentioned above correspond to DMRS configurations, respectively, wherein the DMRS configuration corresponding to the PO can be used to configure the DMRS, the DMRS can be transmitted simultaneously with the SDT, and the DMRS can be used to perform channel estimation detection on the PUSCH that transmits the SDT. Optionally, the DMRS configuration may include at least one of the following: DMRS mapping type type, DMRS ports, and DMRS scrambling identifier (ID). The DMRS mapping type may include DMRS mapping type 1 and DMRS mapping type 2. DMRS mapping type 1 can be configured with up to 8 DMRS ports, wherein single-symbol DMRS mapping type 1 can be configured with 4 DMRS ports, and dual-symbol DMRS mapping type 1 can be configured with 8 DMRS ports; DMRS mapping type 2 can be configured with up to 12 DMRS ports, wherein single-symbol DMRS mapping type 2 can be configured with 6 DMRS ports, and dual-symbol DMRS mapping type 2 can be configured with 12 DMRS ports. Each DMRS port corresponds to a PUSCH resource, and the PUSCH resource corresponding to the DMRS port is used to transmit a DMRS sequence corresponding to the DMRS port, wherein channel estimation can be achieved based on the DMRS sequence. Optionally, the DMRS sequence can be generated based on a DMRS scrambling ID, and different DMRS scrambling IDs are used to generate different DMRS sequences. Optionally, in some embodiments, the first configuration can configure N DMRS scrambling IDs, where N is a positive integer and N≤4.

[0166] Optionally, the network device may send a first configuration to the terminal, and the terminal may receive the first configuration. Optionally, the network device may send the first configuration to the terminal via a first message, where the first message may be, for example, an "RRC release message, a system information block (SIB) 1", etc., but is not limited thereto.

[0167] Optionally, in some embodiments, the aforementioned CG period may be used for SDT, and the CG period may also be referred to as, but not limited to, a "CG-SDT periodicity," a CG-SDT PUSCH period, or the like. Optionally, in some embodiments, the duration of the CG period may be longer, for example, from tens of minutes to several hours.

[0168] Step 2102: The terminal determines the first configuration.

[0169] Optionally, in some embodiments, the terminal may receive the first configuration sent by the network device through a first message. The first message may be, for example, an "RRC release Release message, SIB1", etc., but is not limited thereto.

[0170] Optionally, the terminal directly uses the configuration sent by the network device as the first configuration, and the network device determines the configuration and notifies the terminal. In some other embodiments, the terminal may also determine the first configuration based on a protocol agreement and / or autonomously. That is, the network device may send the first configuration to the terminal for reference, but the terminal does not necessarily apply the configuration, but may autonomously determine the configuration to apply.

[0171] For a detailed description of the first configuration, reference may be made to the above embodiment.

[0172] Step 2103: The terminal and / or network device determines at least one PRU corresponding to one or more POs within a CG cycle based on the first configuration.

[0173] Optionally, in some embodiments, the resources occupied by each DMRS port corresponding to each DMRS sequence on each PO correspond to one PRU. For example, assuming that the first configuration is configured with the following content:

[0174] A CG cycle includes two POs, namely PO#1 and PO#2;

[0175] The DMRS mapping type is dual-symbol DMRS type 1, which means eight DMRS ports are configured, namely DMRS ports 0 to 7.

[0176] There are two DMRS scrambling IDs, namely DMRS scrambling ID#1 and DMRS scrambling ID#2. DMRS scrambling ID#1 is used to generate DMRS sequence #1, and DMRS scrambling ID#2 is used to generate DMRS sequence #2.

[0177] In this case, the CG period may correspond to 32 PRUs, of which the resources occupied by DMRS port 0 corresponding to DMRS sequence #1 on PO#1 are one PRU. "The resources occupied by DMRS port 0 corresponding to DMRS sequence #1 on PO#1 are one PRU" may be understood to mean, for example, that when the resources corresponding to DMRS port 0 on PO#1 carry DMRS sequence #1, they correspond to one PRU. Similarly, the resources occupied by DMRS port 0 corresponding to DMRS sequence #2 on PO#1 (i.e., the resources corresponding to DMRS port 0 on PO#1 carry DMRS sequence #2) are another PRU; the resources occupied by DMRS port 1 corresponding to DMRS sequence #1 on PO#1 (i.e., the resources corresponding to DMRS port 1 on PO#1 carry DMRS sequence #1) are yet another PRU; the resources occupied by DMRS port 1 corresponding to DMRS sequence #2 on PO#1 (i.e., the resources corresponding to DMRS port 1 on PO#1 carry DMRS sequence #2) are yet another PRU, and so on. PO#1 corresponds to 16 PRUs.

[0178] Similarly, the resources occupied by DMRS port 0 corresponding to DMRS sequence #1 on PO#2 are one PRU, wherein "the resources occupied by DMRS port 0 corresponding to DMRS sequence #1 on PO#2 are one PRU" can be understood as: when the resources corresponding to DMRS port 0 on PO#2 carry DMRS sequence #1, they correspond to one PRU. Similarly, the resources occupied by DMRS port 0 corresponding to DMRS sequence #2 on PO#2 (i.e., the resources corresponding to DMRS port 0 on PO#2 when carrying DMRS sequence #2) are another PRU; the resources occupied by DMRS port 1 corresponding to DMRS sequence #1 on PO#2 (i.e., the resources corresponding to DMRS port 1 on PO#2 when carrying DMRS sequence #1) are another PRU, and so on. PO#2 corresponds to 16 PRUs.

[0179] Step 2104: The terminal and / or network device numbers at least one PRU in sequence.

[0180] After determining the PRUs in the CG period, the network device and / or terminal may number the PRUs. Optionally, at least one PRU in a CG period may be numbered sequentially based on at least one of the time-frequency domain position, DMRS sequence, and DMRS port of the PO in the CG period. When the number of POs included in the CG period is different, the method of numbering the PRUs may also be different.

[0181] Optionally, the following describes in detail how to number the PRUs:

[0182] It should be understood that one CG period may include one PO or multiple POs. The PRUs may be numbered in a corresponding manner according to the number of POs included in one CG period.

[0183] When a PO is included in the CG period, at least one PRU is numbered sequentially according to a first manner. Optionally, the first manner may be, for example, first sequentially numbering the PRUs corresponding to each DMRS port corresponding to the first DMRS sequence, then sequentially numbering the PRUs corresponding to each DMRS port of the second DMRS sequence, until the PRUs corresponding to each DMRS port corresponding to all DMRS sequences are numbered.

[0184] For example, assume that the first configuration has the following configuration:

[0185] A CG cycle includes one PO, which is PO#1;

[0186] The DMRS mapping type is dual-symbol DMRS type 1, which means eight DMRS ports are configured, namely DMRS ports 0 to 7.

[0187] There are two DMRS scrambling IDs, namely DMRS scrambling ID#1 and DMRS scrambling ID#2. DMRS scrambling ID#1 is used to generate DMRS sequence #1, and DMRS scrambling ID#2 is used to generate DMRS sequence #2.

[0188] At this time, PO#1 corresponds to 16 PRUs (for the specific principle, refer to the above step 2103).

[0189] The method of sequentially numbering the 16 PRUs corresponding to PO#1 using the above-mentioned first method may include: determining the number of the PRU corresponding to the resources occupied by the DMRS port 0 corresponding to the DMRS sequence #1 on PO#1 (that is, the PRU corresponding to the resources corresponding to the DMRS port 0 on PO#1 when carrying the DMRS sequence #1) as "one", determining the number of the PRU corresponding to the resources occupied by the DMRS port 1 corresponding to the DMRS sequence #1 on PO#1 (that is, the PRU corresponding to the resources corresponding to the DMRS port 1 on PO#1 when carrying the DMRS sequence #1) as "two", determining the number of the PRU corresponding to the resources occupied by the DMRS port 2 corresponding to the DMRS sequence #1 on PO#1 (that is, the PRU corresponding to the resources corresponding to the DMRS port 2 on PO#1 when carrying the DMRS sequence #1) as "three", and so on, determining the number of the PRU corresponding to the resources occupied by the DMRS port 7 corresponding to the DMRS sequence #1 on PO#1 as "three". The number of PRU (i.e., the PRU corresponding to the resources occupied by DMRS port 0 corresponding to DMRS sequence #2 on PO#1 when carrying DMRS sequence #1) is determined to be "eight"; thereafter, the number of PRU corresponding to the resources occupied by DMRS port 0 corresponding to DMRS sequence #2 on PO#1 (i.e., the PRU corresponding to the resources corresponding to DMRS port 0 on PO#1 when carrying DMRS sequence #2) is determined to be "nine", the number of PRU corresponding to the resources occupied by DMRS port 1 corresponding to DMRS sequence #2 on PO#1 (i.e., the PRU corresponding to the resources corresponding to DMRS port 1 on PO#1 when carrying DMRS sequence #2) is determined to be "ten", and so on, until the number of PRU corresponding to the resources occupied by DMRS port 7 corresponding to DMRS sequence #2 on PO#1 (i.e., the PRU corresponding to the resources corresponding to DMRS port 7 on PO#1 when carrying DMRS sequence #2) is determined to be "sixteen", thereby numbering all PRUs.

[0190] Optionally, the above examples are ascending numbering. In other embodiments, descending numbering may also be performed. For example, the PRU corresponding to the resources occupied by the DMRS port 0 corresponding to the DMRS sequence #1 on PO#1 (that is, the PRU corresponding to the resources corresponding to the DMRS port 0 on PO#1 when carrying the DMRS sequence #1) is numbered as "sixteen", and the PRU corresponding to the resources occupied by the DMRS port 1 corresponding to the DMRS sequence #1 on PO#1 (that is, the PRU corresponding to the resources corresponding to the DMRS port 1 on PO#1 when carrying the DMRS sequence #1) is numbered as "fifteen", and so on. The present disclosure is not limited to this.

[0191] Optionally, when introducing the first method above, the introduction is made using the example of "the numbering order is: DMRS port first, then DMRS sequence". The first method can also be to number the PRU in the order of "the numbering order is: DMRS sequence first, then DMRS port", or other similar methods. The principles are similar and this disclosure does not make specific limitations.

[0192] Optionally, when a CG period includes multiple POs, the PO time domain positions and / or PO frequency domain positions are different between the multiple POs in the CG period; wherein the PO time domain position is: the time domain position where the PO is located, and the time domain position can be, for example, a symbol, a time slot, etc., but not limited thereto; the PO frequency domain position is: the frequency domain position where the PO is located, and the frequency domain position can be, for example, a positioning frequency layer (PFL), a component carrier (CC), etc., but not limited thereto. At this time, at least one PRU can be numbered sequentially according to the second method.

[0193] Optionally, the second method may be: using a predetermined method to sequentially number the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at all PO frequency domain positions at the first PO time domain position of the CG period, and then using a predetermined method to sequentially number the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at all PO frequency domain positions at the second PO time domain position of the CG period, until all PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at all PO frequency domain positions at all PO time domain positions within the CG period are numbered.

[0194] Optionally, the predetermined method may include: first, sequentially numbering the PRUs corresponding to each DMRS port corresponding to the first DMRS sequence of the PO at the first PO frequency domain position on the PO time domain position, and then, sequentially numbering the PRUs corresponding to each DMRS port corresponding to the second DMRS sequence of the PO at the first PO frequency domain position on the PO time domain position, to determine the numbering of the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at the first PO frequency domain position on the PO time domain position; then, sequentially numbering the PRUs corresponding to each DMRS port corresponding to the first DMRS sequence of the PO at the second PO frequency domain position on the PO time domain position, and sequentially numbering the PRUs corresponding to each DMRS port corresponding to the second DMRS sequence of the PO at the second PO frequency domain position on the PO time domain position, to determine the numbering of the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at the second PO frequency domain position on the PO time domain position, until the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at all PO frequency domain positions on the PO time domain position are numbered.

[0195] For example, assume that the first configuration has the following configuration:

[0196] A CG cycle includes 4 POs, namely PO#1, PO#2, PO#3, and PO#4, among which PO#1 and PO#2 are located at the same time domain position but different frequency domain positions, PO#3 and PO#4 are located at the same time domain position but different frequency domain positions, the time domain positions of PO#1 and PO#2 are located before the time domain positions of PO#3 and PO#4, and the frequency domain position of PO#2 is located after the frequency domain position of PO#1, and the frequency domain position of PO#4 is located after the frequency domain position of PO#3. It can be seen that PO#1 and PO#2 are both the first PO time domain position of the CG cycle, PO#1 is the PO of the first PO frequency domain position on the first PO time domain position, and PO#2 is the PO of the second PO frequency domain position on the first PO time domain position; PO#3 and PO#4 are both the second PO time domain position of the CG cycle, PO#3 is the PO of the first PO frequency domain position on the second PO time domain position, and PO#4 is the PO of the second PO frequency domain position on the second PO time domain position;

[0197] The DMRS mapping type is dual-symbol DMRS type 1, which means eight DMRS ports are configured, namely DMRS ports 0 to 7.

[0198] There are two DMRS scrambling IDs, namely DMRS scrambling ID#1 and DMRS scrambling ID#2. DMRS scrambling ID#1 is used to generate DMRS sequence #1, and DMRS scrambling ID#2 is used to generate DMRS sequence #2.

[0199] At this time, the CG cycle can correspond to 64 PRUs, among which PO#1 corresponds to 16 PRUs, PO#2 corresponds to 16 PRUs, PO#3 corresponds to 16 PRUs, and PO#4 corresponds to 16 PRUs (for the specific principle, refer to the above step 2103).

[0200] The method of sequentially numbering the 64 PRUs corresponding to the CG period using the above-mentioned second method may include: determining the PRU corresponding to the DMRS port 0 corresponding to the first DMRS sequence of the PO of the first PO frequency domain position at the first PO time domain position (that is, the PRU corresponding to the resource corresponding to DMRS port 0 on PO#1 when carrying DMRS sequence #1) as "one", determining the PRU corresponding to the DMRS port 1 corresponding to the first DMRS sequence of the PO of the first PO frequency domain position at the first PO time domain position (that is, the PRU corresponding to the resource corresponding to DMRS port 1 on PO#1 when carrying DMRS sequence #1) as "two", determining the PRU corresponding to the DMRS port 2 corresponding to the first DMRS sequence of the PO of the first PO frequency domain position at the first PO time domain position (that is, the PRU corresponding to the resource corresponding to DMRS port 2 on PO#1 when carrying DMRS sequence #1) as "three", and so on, determining the PRU corresponding to the first DMRS of the PO of the first PO frequency domain position at the first PO time domain position (that is, the PRU corresponding to the resource corresponding to DMRS port 2 on PO#1 when carrying DMRS sequence #1) as "three". The PRU corresponding to the DMRS port 7 corresponding to the sequence (that is, the PRU corresponding to the resource corresponding to DMRS port 7 on PO#1 when carrying DMRS sequence #1) is numbered as "eight"; then the PRU corresponding to the DMRS port 0 corresponding to the second DMRS sequence of the PO of the first PO frequency domain position on the first PO time domain position (that is, the PRU corresponding to the resource corresponding to DMRS port 0 on PO#1 when carrying DMRS sequence #2) is numbered as "nine", and the PRU corresponding to the DMRS port 1 corresponding to the second DMRS sequence of the PO of the first PO frequency domain position on the first PO time domain position (that is, the PRU corresponding to the resource corresponding to DMRS port 1 on PO#1 when carrying DMRS sequence #2) is numbered as "ten", and so on, the PRU corresponding to the DMRS port 7 corresponding to the second DMRS sequence of the PO of the first PO frequency domain position on the first PO time domain position (that is, the PRU corresponding to the resource corresponding to DMRS port 7 on PO#1 when carrying DMRS sequence #2) is numbered as "sixteen";Afterwards, the PRU corresponding to the DMRS port 0 corresponding to the first DMRS sequence of the PO of the second PO frequency domain position on the first PO time domain position (that is, the PRU corresponding to the resources corresponding to DMRS port 0 on PO#2 when carrying DMRS sequence #1) is numbered as "seventeen", and the PRU corresponding to the DMRS port 1 corresponding to the first DMRS sequence of the PO of the second PO frequency domain position on the first PO time domain position (that is, the PRU corresponding to the resources corresponding to DMRS port 1 on PO#2 when carrying DMRS sequence #1) is numbered as "eighteen", and so on, the PRU corresponding to the DMRS port 7 corresponding to the first DMRS sequence of the PO of the second PO frequency domain position on the first PO time domain position (that is, the PRU corresponding to the resources corresponding to DMRS port 7 on PO#2 when carrying DMRS sequence #1) is numbered as "twenty-four"; and then the second PO of the second PO frequency domain position on the first PO time domain position is numbered as "twenty-four". The PRU corresponding to DMRS port 0 corresponding to the DMRS sequence (i.e., the PRU corresponding to the resource corresponding to DMRS port 0 on PO#2 when carrying DMRS sequence #2) is numbered as "twenty-five," the PRU corresponding to DMRS port 1 corresponding to the second DMRS sequence of the PO at the second PO frequency domain position at the first PO time domain position (i.e., the PRU corresponding to the resource corresponding to DMRS port 1 on PO#2 when carrying DMRS sequence #2) is numbered as "twenty-six," and so on, the PRU corresponding to DMRS port 7 corresponding to the second DMRS sequence of the PO at the second PO frequency domain position at the first PO time domain position (i.e., the PRU corresponding to the resource corresponding to DMRS port 7 on PO#2 when carrying DMRS sequence #2) is numbered as "thirty-two," thereby completing the numbering of the PRUs corresponding to the respective DMRS ports corresponding to all DMRS sequences of the PO at all PO frequency domain positions at the first PO time domain position.

[0201] Afterwards, similarly, the PRU corresponding to the DMRS port 0 corresponding to the first DMRS sequence of the PO at the first PO frequency domain position at the second PO time domain position (that is, the PRU corresponding to the resources corresponding to DMRS port 0 on PO#3 when carrying DMRS sequence #1) is numbered as "thirty-three", and the PRU corresponding to the DMRS port 1 corresponding to the first DMRS sequence of the PO at the first PO frequency domain position at the second PO time domain position (that is, the PRU corresponding to the resources corresponding to DMRS port 1 on PO#3 when carrying DMRS sequence #1) is numbered as "thirty-four", and so on. The PRU corresponding to the DMRS port 7 corresponding to the first DMRS sequence of the PO at the second PO time domain position (that is, the PRU corresponding to the resource corresponding to DMRS port 7 on PO#3 when carrying DMRS sequence #1) is numbered as "forty"; then the PRU corresponding to the DMRS port 0 corresponding to the second DMRS sequence of the PO at the first PO frequency domain position at the second PO time domain position (that is, the PRU corresponding to the resource corresponding to DMRS port 0 on PO#3 when carrying DMRS sequence #2) is numbered as "forty-one", and the PRU corresponding to the DMRS port 1 corresponding to the second DMRS sequence of the PO at the first PO frequency domain position at the second PO time domain position is numbered as "forty-one". The number of the PRU corresponding to the DMRS port 7 corresponding to the second DMRS sequence of the PO at the first PO frequency domain position on the second PO time domain position (i.e., the PRU corresponding to the DMRS port 7 on PO#3 when carrying DMRS sequence #2) is determined to be "forty-two", and so on, the number of the PRU corresponding to the DMRS port 7 corresponding to the second DMRS sequence of the PO at the first PO frequency domain position on the second PO time domain position (i.e., the PRU corresponding to the DMRS port 0 corresponding to the first DMRS sequence of the PO at the second PO frequency domain position on the second PO time domain position (i.e., the PRU corresponding to the DMRS port 0 on PO#4 when carrying DMRS sequence #2) is determined to be "forty-eight". The PRU corresponding to the DMRS sequence #1 when the PO is at the second PO frequency domain position at the second PO time domain position is numbered as “forty-nine”, the PRU corresponding to the DMRS port 1 corresponding to the first DMRS sequence of the PO at the second PO frequency domain position at the second PO time domain position (that is, the PRU corresponding to the resource corresponding to the DMRS port 1 on PO#4 when carrying the DMRS sequence #1) is numbered as “fifty”, and by analogy, the PRU corresponding to the DMRS port 7 corresponding to the first DMRS sequence of the PO at the second PO frequency domain position at the second PO time domain position (that is, the PRU corresponding to the resource corresponding to the DMRS port 7 on PO#4 when carrying the DMRS sequence #1) is numbered as “fifty-six”;Then, the PRU corresponding to DMRS port 0 corresponding to the second DMRS sequence of the PO at the second PO frequency domain position at the second PO time domain position (i.e., the PRU corresponding to the resource corresponding to DMRS port 0 on PO#4 when carrying DMRS sequence #2) is numbered as "fifty-seven", and the PRU corresponding to DMRS port 1 corresponding to the second DMRS sequence of the PO at the second PO frequency domain position at the second PO time domain position (i.e., the PRU corresponding to the resource corresponding to DMRS port 1 on PO#4 when carrying DMRS sequence #2) is numbered as "fifty-eight". Similarly, the PRU corresponding to DMRS port 7 corresponding to the second DMRS sequence of the PO at the second PO frequency domain position at the second PO time domain position (i.e., the PRU corresponding to the resource corresponding to DMRS port 7 on PO#4 when carrying DMRS sequence #2) is numbered as "sixty-four", thereby completing the numbering of the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at all PO frequency domain positions at the second PO time domain position.

[0202] Optionally, the above examples are ascending numbering. In other embodiments, descending numbering may also be performed. For example, the PRU corresponding to the DMRS port 0 corresponding to the first DMRS sequence of the PO at the first PO frequency domain position at the first PO time domain position (that is, the PRU corresponding to the resource corresponding to DMRS port 0 on PO#1 when carrying DMRS sequence #1) is numbered as "sixty-four", and the PRU corresponding to the DMRS port 1 corresponding to the first DMRS sequence of the PO at the first PO frequency domain position at the first PO time domain position (that is, the PRU corresponding to the resource corresponding to DMRS port 1 on PO#1 when carrying DMRS sequence #1) is numbered as "sixty-three", and so on. The present disclosure is not limited to this.

[0203] Optionally, when introducing the second method above, the introduction is made by taking "the numbering order is: DMRS port first, then DMRS sequence, then PO frequency domain position, and then PO time domain position" as an example. The second method may also be "the numbering order is: DMRS port first, then DMRS sequence, then PO time domain position, and then PO frequency domain position" to number the PRU, or other similar methods, the principles are similar. Alternatively, when the different POs in the CG period configured by the network device are only different in the time domain position, the second method may also be "the numbering order is: DMRS port first, then DMRS sequence, then PO time domain position" to number the PRU, or when the different POs in the CG period configured by the network device are only different in the frequency domain position, the second method may also be "the numbering order is: DMRS port first, then DMRS sequence, then PO frequency domain position" to number the PRU. This disclosure does not make specific limitations.

[0204] It should be understood that the specific numbering method exemplified above is an example description of the present disclosure, and other similar numbering methods should also be within the scope of protection of the present disclosure, and the present disclosure does not make specific limitations here.

[0205] Step 2105: The network device sends a second configuration.

[0206] Optionally, in some embodiments, the second configuration may be used to configure at least one of the following:

[0207] At least one SSB corresponding to the CG period; for example, the second configuration may be used to configure the SSB index corresponding to each of the at least one SSB corresponding to the CG period. Optionally, the SSB indexes configured by the second configuration may be discontinuous.

[0208] The mapping ratio between SSBs and PRUs; optionally, the mapping ratio can be, for example: H SSBs can be mapped to one PRU, H can be configured by the network device, and H takes the value of {1 / 8, 1 / 4, 1 / 2, 1, 2, 4, 8, 16}, wherein, when H takes the value of 1 / 8, it means that 1 SSB is mapped to 8 PRUs, that is, 1 SSB needs to have a mapping relationship with 8 PRUs, and when H takes the value of 2, it means that 2 SSBs are mapped to 1 PRU, that is, 2 SSBs need to have a mapping relationship with the same PRU. It should be noted that the "mapping relationship" mentioned in the embodiments of the present disclosure can be understood as "association relationship", "correspondence relationship", etc., which is not limited in this disclosure, and the subsequent "mapping a certain SSB to a certain PRU" can be understood as: "determining that a certain SSB has an association relationship with a certain PRU", "determining that a certain SSB has a corresponding relationship with a certain PRU", etc., which is not limited in this disclosure.

[0209] Optionally, the network device may send the second configuration to the terminal, and the terminal may receive the second configuration. Optionally, the network device may send the second configuration to the terminal via a first message, and the first message may be, for example, an "RRC Release message, SIB1", etc., but is not limited thereto.

[0210] Optionally, the present disclosure does not limit the order between the above steps 2101 and 2105. The two steps may be performed simultaneously, or step 2105 may be performed first and then step 2101; or step 2101 may be performed first and then step 2105.

[0211] Step 2106: The terminal determines the second configuration.

[0212] Optionally, in some embodiments, the terminal may receive the second configuration sent by the network device via a first message. The first message may be, for example, an "RRC Release message, SIB1," etc., but is not limited thereto. That is, the first configuration and the second configuration may be carried by the same signaling. Alternatively, the network device may send the second configuration to the terminal via a second message different from the signaling carrying the first configuration, so that the terminal receives the second configuration sent by the second message.

[0213] Optionally, in some other embodiments, the terminal may also determine the second configuration based on a protocol agreement and / or autonomously.

[0214] For a detailed description of the second configuration, please refer to the above embodiment.

[0215] Optionally, in some embodiments, the above-mentioned first configuration and / or second configuration should enable M rounds of mapping between all SSBs corresponding to the CG period to the PRUs in the CG period, where M is a positive integer. Optionally, the M rounds of mapping can be understood as: when the mapping relationship between all SSBs corresponding to the CG cycle and the PRUs in the CG cycle is determined for the first time, it is determined that the first round of mapping is performed between all SSBs corresponding to the CG cycle and the PRUs in the CG cycle except the PRUs used in the first round of mapping, and after the first round of mapping is completed, if the mapping relationship between all SSBs corresponding to the CG cycle and the PRUs in the CG cycle other than the PRUs used in the first round of mapping is determined, it is determined that the second round of mapping is performed between all SSBs corresponding to the CG cycle and the PRUs in the CG cycle. Similarly, after the second round of mapping is completed, if the mapping relationship between all SSBs corresponding to the CG cycle and the PRUs in the CG cycle other than the PRUs used in the first and second rounds of mapping is determined, it is determined that the third round of mapping is performed between all SSBs corresponding to the CG cycle and the PRUs in the CG cycle, and so on, until M rounds of mapping are completed.

[0216] For example, assuming that a CG cycle corresponds to 8 PRUs, and the CG cycle corresponds to 3 SSBs, namely SSB#1, SSB#2, and SSB#3. Assuming that the mapping ratio is 1 SSB mapped to one PRU, SSB#1, SSB#2, and SSB#3 can be mapped to 3 of the 8 PRUs respectively to complete the first round of mapping. After that, SSB#1, SSB#2, and SSB#3 can be mapped to 3 of the other 5 PRUs except the PRU used in the first round of mapping to complete the second round of mapping.

[0217] Optionally, in some embodiments, the above-mentioned "the first configuration and / or the second configuration should enable M rounds of mapping between all SSBs corresponding to the CG cycle and the PRUs in the CG cycle" mainly means that the total number of PRUs that can be determined by the first configuration, the mapping ratio configured by the second configuration, and the total number of SSBs corresponding to the CG cycle configured by the second configuration must meet certain conditions, so that M rounds of mapping can be performed between all SSBs corresponding to the CG cycle and the PRUs in the CG cycle.

[0218] For example, assuming that it is currently necessary to enable one round of mapping between all SSBs corresponding to the CG period and the PRUs in the CG period, if the first configuration configures the following content: one CG period includes 1 PO, the DMRS mapping type is single-symbol DMRS type 1, and 1 DMRS scrambling ID is configured, then based on the first configuration, the number of PRUs that can be determined is 8 (for the specific principle, refer to the introduction of step 2103 above). At this time, if the CG period configured by the second configuration corresponds to 8 SSBs, then at this time, the mapping ratio configured by the second configuration should meet the following conditions: F SSBs are mapped to one PRU, and F is less than or equal to 1. In this way, it can be ensured that each SSB corresponding to the CG period can be mapped to the PRU to complete one round of mapping from SSB to PRU.

[0219] As another example, assuming that it is currently necessary to enable two rounds of mapping between all SSBs corresponding to the CG period and the PRUs in the CG period, if the first configuration configures the following content: one CG period includes 1 PO, the DMRS mapping type is single-symbol DMRS type 1, and 1 DMRS scrambling ID is configured, then based on the first configuration, the number of PRUs that can be determined is 8 (for the specific principle, refer to the introduction of step 2103 above). At this time, if the mapping ratio configured by the second configuration is: 1 SSB is mapped to one PRU, then at this time, the CG period configured by the second configuration should correspond to a maximum of 4 SSBs. In this way, it can be ensured that two rounds of mapping can be performed between all SSBs corresponding to the CG period and the PRUs in the CG period.

[0220] Optionally, in some embodiments, the above-mentioned "the first configuration and / or the second configuration enables M rounds of mapping between all SSBs corresponding to the CG cycle to PRUs in the CG cycle" may include the following two situations: the first configuration and / or the second configuration enables M rounds of mapping between all SSBs corresponding to the CG cycle to PRUs in the cycle, and there are no remaining PRUs that are not mapped; or, the first configuration and / or the second configuration enables M rounds of mapping between all SSBs corresponding to the CG cycle to PRUs in the cycle, and there are remaining PRUs that are not mapped.

[0221] Optionally, the present disclosure does not limit the order between the above steps 2102 and 2106. The two may be performed simultaneously, or step 2106 may be performed first and then step 2102; or step 2102 may be performed first and then step 2106.

[0222] Step 2107: The terminal and / or network device determines the mapping relationship between at least one SSB corresponding to the CG period and at least one PRU in the CG period based on the second configuration and the number of at least one PRU.

[0223] Optionally, in some embodiments, determining a mapping relationship between at least one SSB corresponding to a CG period and at least one PRU in the CG period may include at least one of the following:

[0224] Step a: Determine the mapping relationship between all SSBs corresponding to the CG period and the PRUs in the CG period to complete a round of mapping from SSB to PRU in the CG period.

[0225] Optionally, a round of mapping from SSB to PRU within the CG period can be completed according to the mapping ratio, the SSB sequence numbers of all SSBs corresponding to the CG period, and the PRU number.

[0226] For example, all SSBs corresponding to the CG period can be mapped to PRUs in a mapping ratio and ascending order to complete a round of mapping from SSB to PRU. For example, assuming that the SSB serial numbers of all SSBs corresponding to the CG period are: SSB#1, SSB2, SSB#3, SSB#5; the CG period corresponds to 8 PRUs, numbered from one to eight, and the mapping ratio is: 1 SSB is mapped to one PRU, then SSB#1 can be mapped to the PRU numbered "one", SSB#2 can be mapped to the PRU numbered "two", SSB#3 can be mapped to the PRU numbered "three", and SSB#5 can be mapped to the PRU numbered "four", thereby completing a round of mapping.

[0227] Alternatively, all SSBs corresponding to the CG period can be mapped to PRUs in a mapping ratio and descending order to complete a round of mapping from SSB to PRU. For example, assuming that the SSB serial numbers of all SSBs corresponding to the CG period are: SSB#1, SSB2, SSB#3, SSB#5; the CG period corresponds to 8 PRUs, numbered from one to eight, and the mapping ratio is: 1 SSB is mapped to one PRU, then SSB#1 can be mapped to the PRU numbered "eight", SSB#2 can be mapped to the PRU numbered "seven", SSB#3 can be mapped to the PRU numbered "six", and SSB#5 can be mapped to the PRU numbered "five", thus completing a round of mapping.

[0228] Step b: There are still PRUs that are not mapped to SSBs in the CG period, and the PRUs that are not mapped to SSBs can complete a round of mapping from SSBs to PRUs, and determine the mapping relationship between all SSBs corresponding to the CG period and the PRUs that are not mapped to SSBs in the CG period, so as to complete another round of mapping from SSBs to PRUs in the CG period.

[0229] For example, assuming that the SSB sequence numbers of all SSBs corresponding to the CG period are: SSB#1, SSB2, SSB#3, SSB#5; the CG period corresponds to 8 PRUs, numbered from one to eight, and the mapping ratio is: one SSB is mapped to one PRU. The mapping of SSB#1 to the PRU numbered "one", the mapping of SSB#2 to the PRU numbered "two", the mapping of SSB#3 to the PRU numbered "three", and the mapping of SSB#5 to the PRU numbered "four" have been completed. At this time, there are still 4 PRUs (ie, PRUs numbered "five to eight") that are not mapped. Among them, since the mapping ratio is: 1 SSB is mapped to one PRU, and the total number of SSBs corresponding to the CG period is 4, among which 4 PRUs are required to realize a round of mapping of all 4 SSBs to PRUs based on the mapping ratio, and the remaining 4 PRUs can realize a round of mapping from SSB to PRU. Thus, all SSBs corresponding to the CG period can be mapped to the remaining 4 PRUs respectively. For example, SSB#1 can be mapped to the PRU numbered "eight", SSB#2 can be mapped to the PRU numbered "seven", SSB#3 can be mapped to the PRU numbered "six", and SSB#5 can be mapped to the PRU numbered "five", thereby completing another round of mapping.

[0230] Step c: There is no PRU that is not mapped to the SSB in the CG period, and / or there is a PRU that is not mapped to the SSB in the CG period, but the PRU that is not mapped to the SSB cannot complete a round of mapping from SSB to PRU, and the mapping is stopped.

[0231] For example, assuming that the SSB sequence numbers of all SSBs corresponding to the CG period are: SSB#1, SSB2, SSB#3, SSB#5; the CG period corresponds to 4 PRUs, numbered one to four, and the mapping ratio is: 1 SSB is mapped to one PRU, the mapping of SSB#1 to the PRU numbered "one", the mapping of SSB#2 to the PRU numbered "two", the mapping of SSB#3 to the PRU numbered "three", and the mapping of SSB#5 to the PRU numbered "four" have been completed. At this time, there is no PRU in the CG period that is not mapped to the SSB, so the mapping can be stopped.

[0232] Or, for example, assuming that the SSB sequence numbers of all SSBs corresponding to the CG period are: SSB#1, SSB2, SSB#3, SSB#5, SSB#6; the CG period corresponds to 8 PRUs, numbered from one to eight, and the mapping ratio is: 1 SSB is mapped to one PRU, and the mapping of SSB#1 to the PRU numbered "one", SSB#2 to the PRU numbered "two", SSB#3 to the PRU numbered "three", SSB#5 to the PRU numbered "six", and SSB#6 to the PRU numbered "eight" have been completed. The mapping of PRU numbered "four" and the mapping of SSB#6 to PRU numbered "five" are completed. At this time, there are still 3 PRUs (i.e., PRUs numbered "six to eight") that have not been mapped. Since the mapping ratio is: 1 SSB is mapped to one PRU, and the total number of SSBs corresponding to the CG period is 5, 5 PRUs are required to realize a round of mapping of all 5 SSBs to PRUs based on the mapping ratio, and the remaining 3 PRUs cannot realize a round of mapping of SSBs to PRUs, so the mapping can be stopped at this time.

[0233] It should be noted that, in some embodiments, the above-mentioned "method for determining the mapping relationship between at least one SSB corresponding to the CG period and at least one PRU in the CG period" may include one or more of the above-mentioned steps a, b, and c. For example, it may include only step a, only step b, or only step c, or it may include step a+step b, step a+step c, step b+step c, or it may include step a+step b+step c. This disclosure is not limited thereto.

[0234] It should be noted that in some embodiments, after determining the above mapping relationship, the terminal can send the mapping relationship to the network device, or, after determining the above mapping relationship, the network device can send the mapping relationship to the terminal, which is not specifically limited in this disclosure.

[0235] Step 2108: The terminal determines the target PRU.

[0236] Optionally, the SSB mapped to the target PRU is associated with a target downlink beam, and the target PRU is used to indicate the target downlink beam. The target downlink beam may be an optimal downlink beam.

[0237] Optionally, the terminal can measure the beam quality of the beams associated with all the SSBs corresponding to the CG period, and determine the target downlink beam with the best quality, and then determine the target PRU mapped by the SSB associated with the target downlink beam.

[0238] For example, assuming that the SSB sequence numbers of all SSBs corresponding to the CG period are: SSB#1, SSB2, SSB#3, SSB#5, SSB#6; the CG period corresponds to 8 PRUs, numbered from one to eight, among which SSB#1 is mapped to the PRU numbered "one", SSB#2 is mapped to the PRU numbered "two", SSB#3 is mapped to the PRU numbered "three", SSB#5 is mapped to the PRU numbered "four", and SSB#6 is mapped to the PRU numbered "five". At this time, if the terminal measures that the beam quality of the beam associated with SSB#5 is the best, the terminal can determine the PRU numbered "four" as the target PRU.

[0239] Step 2109: The terminal uses the target PRU to send data to the network device.

[0240] For example, it is assumed that the SSB sequence numbers of all SSBs corresponding to the CG period are: SSB#1, SSB2, SSB#3, SSB#5, SSB#6; the CG period corresponds to 8 PRUs, numbered from one to eight, among which SSB#1 is mapped to the PRU numbered "one", SSB#2 is mapped to the PRU numbered "two", SSB#3 is mapped to the PRU numbered "three", SSB#5 is mapped to the PRU numbered "four", and SSB#6 is mapped to the PRU numbered "five". Among them, the PRU numbered "one" is: the resources occupied by DMRS port 0 corresponding to DMRS sequence #1 on PO#1, the PRU numbered "two" is: the resources occupied by DMRS port 1 corresponding to DMRS sequence #1 on PO#1, the PRU numbered "three" is: the resources occupied by DMRS port 2 corresponding to DMRS sequence #1 on PO#1, the PRU numbered "four" is: the resources occupied by DMRS port 3 corresponding to DMRS sequence #1 on PO#1, the PRU numbered "five" is: the resources occupied by DMRS port 4 corresponding to DMRS sequence #1 on PO#1, the PRU numbered "six" is: the resources occupied by DMRS port 5 corresponding to DMRS sequence #1 on PO#1, the PRU numbered "seven" is: the resources occupied by DMRS port 6 corresponding to DMRS sequence #1 on PO#1, and the PRU numbered "eight" is: the resources occupied by DMRS port 7 corresponding to DMRS sequence #1 on PO#1.

[0241] At this time, if the target PRU determined by the terminal is the PRU numbered "four", the method for the terminal to send data to the network device using the target PRU may be: using PO#1 to send data, and when using PO#1 to send data, also using the resources corresponding to DMRS port 3 on PO#1 to carry DMRS sequence #1. Optionally, in the embodiment of the present disclosure, when using the target PRU to send data to the network device, single-layer single DMRS port transmission is supported.

[0242] Optionally, the terminal sends data to the network device by utilizing the target PRU so as to implicitly indicate the above-mentioned target downlink beam to the network device. Optionally, how the network device specifically determines the target downlink beam based on the implicit indication of the terminal is described in subsequent step 2110.

[0243] In addition, in some embodiments, when a terminal transmits data using a PO in the manner described above, the PO may also be configured with repeated transmission. For example, when the current communication environment is poor, the network device may configure a repetition period for the PO so that after data is transmitted on the PO, the data previously transmitted on the PO is retransmitted after a repetition period. For example, assuming that a certain PO is located at the first time domain position of a CG period, the network device configures repeated transmission, and the repetition period is three time domain positions, then after the terminal transmits data at the first time domain position, it may also retransmit the data at the fourth time domain position.

[0244] Optionally, in some embodiments, when a CG cycle includes multiple POs, if each PO needs to be repeatedly transmitted, the repeated transmissions between different POs can be performed sequentially or alternately. Optionally, FIG2B is a schematic diagram of a sequential repeated transmission between different POs provided by an embodiment of the present disclosure; FIG2C is a schematic diagram of an alternate repeated transmission between different POs provided by an embodiment of the present disclosure; as shown in FIG2B and FIG2C, assuming that a CG cycle includes two POs, namely PO#1 and PO#2, wherein two repeated transmissions are configured for both PO#1 and PO#2, then referring to FIG2B, the repeated transmissions between PO#1 and PO#2 can be performed sequentially, that is, first performing the first transmission of PO#1 and the second repeated transmission of PO#1, and then performing the first transmission of PO#2 and the second repeated transmission of PO#2. Furthermore, referring to Figure 2C , repeated transmissions between PO#1 and PO#2 can be performed alternately. This means that PO#1 is first transmitted, followed by PO#2, followed by PO#1's second transmission, followed by PO#2's second transmission. Different POs use different PRUs for repeated transmission. For example, during repeated transmission of PO#1, data can be transmitted using the PRU associated with SSB#1, while during repeated transmission of PO#2, data can be transmitted using the PRU associated with SSB#2.

[0245] Step 2110: The network device determines the target downlink beam based on the terminal's transmission.

[0246] Optionally, when receiving data, the network device can determine which specific PRU transmits the data to determine the target PRU. Afterwards, the network device can determine the target SSB mapped by the target PRU based on the mapping relationship between SSB and PRU, and determine the beam associated with the target SSB as the target downlink beam, wherein the target downlink beam is the optimal downlink beam.

[0247] Step 2111: Use the target downlink beam to send data to the terminal.

[0248] The mapping method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2111. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2103 may be implemented as an independent embodiment, and steps S2101+S2102 may be implemented as independent embodiments, but are not limited thereto.

[0249] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0250] FIG3A is an interactive diagram of a mapping method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a mapping method for a network device 101, the method comprising:

[0251] Step 3101: The network device sends a first configuration.

[0252] Step 3102: The network device determines at least one PRU corresponding to one or more POs within a CG period based on the first configuration.

[0253] Step 3103: The network device numbers at least one PRU in sequence.

[0254] Step 3104: The network device sends a second configuration.

[0255] Step 3105: The network device determines the mapping relationship between at least one SSB corresponding to the CG period and at least one PRU in the CG period based on the second configuration and the number of at least one PRU.

[0256] Step 3106: The network device receives data sent by the terminal using the target PRU.

[0257] Step 3107: The network device determines the target beam based on the terminal's transmission.

[0258] Step 3108: The network device sends data using the target downlink beam.

[0259] For a detailed description of steps 3101 - 3108 , please refer to the above embodiment description.

[0260] The mapping method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3108. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, and steps S3101+S3102 may be implemented as independent embodiments, but are not limited thereto.

[0261] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0262] FIG4A is an interactive diagram of a mapping method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a mapping method for a terminal 102, the method comprising:

[0263] Step 4101: The terminal determines a first configuration.

[0264] Step 4102: The terminal determines at least one PRU corresponding to one or more POs within a CG period based on the first configuration.

[0265] Step 4103: The terminal numbers at least one PRU in sequence.

[0266] Step 4104: The terminal determines the second configuration.

[0267] Step 4105: The terminal determines the mapping relationship between at least one SSB corresponding to the CG period and at least one PRU in the CG period based on the second configuration and the number of at least one PRU.

[0268] Step 4106: The terminal determines the target PRU.

[0269] Step 4107: The terminal sends data using the target PRU.

[0270] Step 4108: The terminal receives data sent by the network device using the target downlink beam.

[0271] For a detailed description of steps 4101-4108, please refer to the above embodiment.

[0272] The mapping method involved in the embodiment of the present disclosure may include at least one of steps S4101 to S4108. For example, step S4101 may be implemented as an independent embodiment, and step S4102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0273] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0274] FIG5A is an interactive diagram of a mapping method according to an embodiment of the present disclosure. As shown in FIG5A , the embodiment of the present disclosure relates to a mapping method for a first device, the method comprising:

[0275] Step 5101: The first device determines at least one PRU corresponding to one or more POs within a CG period.

[0276] Step 5102: The first device determines the mapping relationship between at least one SSB corresponding to the CG period and at least one PRU in the CG period.

[0277] Optionally, determining at least one PRU corresponding to one or more POs within a CG period includes:

[0278] Determine a first configuration, where the first configuration is used to configure at least one of the following: the number of POs in a CG period, and a demodulation reference signal (DMRS) configuration corresponding to the PO; wherein the DMRS configuration includes one or more of a DMRS mapping type, a DMRS port, and a DMRS scrambling identifier (ID); wherein different DMRS scrambling IDs are used to generate different DMRS sequences;

[0279] Based on the first configuration, at least one PRU corresponding to one or more POs within a CG period is determined, and the at least one PRU is numbered in sequence; wherein, the resources occupied by each DMRS port corresponding to each DMRS sequence on each PO correspond to a PRU.

[0280] Optionally, the DMRS mapping type includes: DMRS type 1 and / or DMRS type 2;

[0281] The first configuration can configure N DMRS scrambling IDs, where N is a positive integer and N≤4.

[0282] Optionally, the sequentially numbering the at least one PRU includes:

[0283] The CG period includes a PO, and the at least one PRU is numbered sequentially according to the first method;

[0284] The CG period includes multiple POs, and the at least one PRU is numbered in sequence according to the second method.

[0285] Optionally, the first method is:

[0286] First, the PRUs corresponding to the DMRS ports corresponding to the first DMRS sequence are numbered in sequence, and then the PRUs corresponding to the DMRS ports of the second DMRS sequence are numbered in sequence, until the PRUs corresponding to the DMRS ports corresponding to all DMRS sequences are numbered.

[0287] Optionally, the PO time domain position and / or PO frequency domain position among multiple POs within the CG period are different; wherein, the PO time domain position is: the time domain position where the PO is located, and the PO frequency domain position is: the frequency domain position where the PO is located.

[0288] Optionally, the second method is:

[0289] The PRUs corresponding to the respective DMRS ports corresponding to all DMRS sequences of the PO at all PO frequency domain positions at the first PO time domain position of the CG period are numbered in sequence in a predetermined manner, and then the PRUs corresponding to the respective DMRS ports corresponding to all DMRS sequences of the PO at all PO frequency domain positions at the second PO time domain position of the CG period are numbered in sequence in a predetermined manner until the PRUs corresponding to the respective DMRS ports corresponding to all DMRS sequences of the PO at all PO frequency domain positions at all PO time domain positions within the CG period are numbered.

[0290] Optionally, the predetermined method includes:

[0291] First, number the PRUs corresponding to each DMRS port corresponding to the first DMRS sequence of the PO at the first PO frequency domain position on the PO time domain position in sequence, and then number the PRUs corresponding to each DMRS port corresponding to the second DMRS sequence of the PO at the first PO frequency domain position on the PO time domain position in sequence to determine the numbering of the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at the first PO frequency domain position on the PO time domain position; then number the PRUs corresponding to each DMRS port corresponding to the first DMRS sequence of the PO at the second PO frequency domain position on the PO time domain position in sequence, and then number the PRUs corresponding to each DMRS port corresponding to the second DMRS sequence of the PO at the second PO frequency domain position on the PO time domain position in sequence to determine the numbering of the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at the second PO frequency domain position on the PO time domain position, until the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at all PO frequency domain positions on the PO time domain position are numbered.

[0292] Optionally, determining a mapping relationship between at least one SSB corresponding to a CG period and at least one PRU in the CG period includes:

[0293] Determine a second configuration, where the second configuration is used to configure at least one of the following: at least one SSB corresponding to the CG period, and a mapping ratio between the SSB and the PRU;

[0294] Based on the second configuration and the number of the at least one PRU, the mapping relationship between at least one SSB corresponding to the CG period and at least one PRU in the CG period is determined.

[0295] Optionally, determining a mapping relationship between at least one SSB corresponding to a CG period and at least one PRU in the CG period includes at least one of the following:

[0296] Determine the mapping relationship between all SSBs corresponding to the CG period and the PRUs in the CG period, so as to complete a round of mapping from the SSBs in the CG period to the PRUs;

[0297] There are still PRUs that are not mapped to SSBs in the CG period, and the PRUs that are not mapped to SSBs can complete one round of mapping from SSBs to PRUs, and determine the mapping relationships between all SSBs corresponding to the CG period and the PRUs that are not mapped to SSBs in the CG period, so as to complete another round of mapping from SSBs to PRUs in the CG period;

[0298] There is no PRU that is not mapped to the SSB in the CG period, and / or there is a PRU that is not mapped to the SSB in the CG period, but the PRU that is not mapped to the SSB cannot complete a round of mapping from SSB to PRU, and the mapping is stopped.

[0299] Optionally, the first configuration and / or the second configuration enables M rounds of mapping between all SSBs corresponding to the CG period to PRUs in the CG period, where M is a positive integer.

[0300] Optionally, the first configuration and / or the second configuration enables M rounds of mapping between all SSBs corresponding to the CG period to PRUs in the period, where M is a positive integer and there are no remaining PRUs that are not mapped.

[0301] Optionally, the CG period includes multiple POs, and each PO needs to be transmitted repeatedly, and the repeated transmissions between different POs are performed sequentially or alternately.

[0302] Optionally, the first device is a terminal or a network device.

[0303] Optionally, the first device is a terminal, and determining the second configuration includes:

[0304] The second configuration is sent by the receiving network device through a radio resource control RRC release message and / or SIB1.

[0305] Optionally, the first device is a terminal, and the method further includes:

[0306] Determine a target PRU, where the SSB mapped to the target PRU is associated with a target downlink beam, and the target PRU is used to indicate the target downlink beam;

[0307] The target PRU is used to send data to the network device.

[0308] For a detailed description of steps 5101 - 5102 , please refer to the above embodiment.

[0309] The mapping method involved in the embodiment of the present disclosure may include at least one of steps S4201 to S4206. For example, step S4201 may be implemented as an independent embodiment, and step S4202 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0310] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0311] FIG5B is a flow chart of a mapping method according to an embodiment of the present disclosure. As shown in FIG5B , the embodiment of the present disclosure relates to a mapping method for a communication system including a terminal and a network device, wherein the method includes at least one of the following:

[0312] Step 5201: The network device determines at least one physical uplink shared channel resource unit (PRU) corresponding to one or more physical uplink shared channel opportunities (PO) within a configuration grant (CG) period.

[0313] Step 5202: The network device determines the mapping relationship between at least one synchronization signal block SSB corresponding to the CG period and at least one PRU in the CG period.

[0314] Step 5203: The terminal determines at least one physical uplink shared channel resource unit (PRU) corresponding to one or more physical uplink shared channel opportunities (PO) within a configuration grant (CG) period.

[0315] Step 5204: The terminal determines the mapping relationship between at least one synchronization signal block SSB corresponding to the CG period and at least one PRU in the CG period.

[0316] The optional implementation of steps 5201 to 5204 can be found in the above embodiments.

[0317] In some embodiments, the above method may include the method described in the above embodiments of the communication system side, terminal side, network device side, etc., which will not be repeated here.

[0318] The mapping method involved in the embodiment of the present disclosure may include at least one of steps S5101 to S5104. For example, step S5101 may be implemented as an independent embodiment, and step S5102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0319] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0320] The following is an exemplary introduction to the above method.

[0321] Optional Example 1: For longer CG-SDT periodicity, the definitions of SSB-to-PRU association period and association pattern period are no longer used; or, for longer CG-SDT periodicity, its SSB-to-PRU association period is the period of CG-SDT PUSCH period, and the definition of association pattern period is no longer used.

[0322] Optional Example 2: Based on Optional Example 2, for the PRU resources on a PUSCH occasion within a CG period, SSB-to-PRU mapping is performed based on the SSB-to-PRU mapping ratio configured by the base station.

[0323] Optional Example 3: Based on Optional Example 2, when all SSBs complete a round of mapping, the next round of mapping can be continued until the remaining PRUs are not enough to complete a round of mapping, and the remaining PRUs are regarded as unavailable resources.

[0324] Optional Example 4: Alternatively, based on Optional Example 2, the terminal does not expect the configuration of the SSB and PRU of the base station to make the mapping between SSB-to-PRU a non-integer round mapping.

[0325] Optional Example 5: Or based on Optional Example 2, the terminal expects the SSB and PRU configured by the base station to complete just one round of SSB-to-PRU mapping

[0326] Optional Example 6: The PRU is a DMRS port of a DMRS sequence on a PUSCH occasion

[0327] Optional Example 7: The PRU resources are numbered based on the order of DMRS port first and DMRS sequence later

[0328] Optional Example 8: All the SSBs are SSB indices configured by the gNB for the corresponding CG-SDT PUSCH through the RRCRelease message, and the numbers between the SSB indices may not be continuous.

[0329] Optional Example 9: Optional, to support a large number of SSB indexes, such as up to 64 SSB indexes in FR2, multiple POs can be configured for one CG period, supporting one or more of the following configuration methods: frequency domain multi-PO configuration, time domain multi-PO configuration

[0330] Optional Example 10: Based on Optional Example 9, PRU resources are numbered based on DMRS port first, DMRS sequence second, frequency domain PO second, and time domain PO last.

[0331] Optional Example 11: Figures 5C and 5D are a resource mapping pattern shown according to an embodiment of the present disclosure. Optionally, for the time domain multi-PO configuration, when performing CG-SDT repetition, consider any one of the resource mapping patterns shown in Figures 5C and 5D: (assuming 2 repetitions, 2TDMed PO for SSB index mapping).

[0332] Optional Example 12: Based on Optional Example 9, if the multi-PO is time domain multi-PO, for longer CG-SDT periodicity, the definition of SSB-to-PRU association period and association pattern period is no longer used; or, for longer CG-SDT periodicity, the definition of SSB-to-PRU association pattern period is no longer used, and the SSB-to-PRU association period is the period of the CG-SDT PUSCH period.

[0333] This disclosure proposes a mapping method for SSBs to CG-SDT PUSCH resources under longer CG-SDT periodicity, so that each SSB index has a reasonable PRU resource implicitly indicated to the gNB, allowing the gNB to determine the optimal transmit beam for the downlink transmission of the subsequent SDT procedure.

[0334] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0335] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0336] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0337] FIG6 is a schematic diagram of the structure of the network device proposed in an embodiment of the present disclosure. As shown in FIG6 , it includes:

[0338] A processing module, configured to determine at least one physical uplink shared channel resource unit (PRU) corresponding to one or more physical uplink shared channel opportunities (PO) within a configuration grant (CG) period;

[0339] The processing module is also used to determine the mapping relationship between at least one synchronization signal block SSB corresponding to the CG period and at least one PRU in the CG period.

[0340] Optionally, the processing module is used to execute the steps related to "processing" performed by the network device 101 and the terminal 102 in any of the above methods. Optionally, the network device further includes at least one of a sending module and a receiving module. The sending module is used to execute the steps related to "sending" performed by the network device 101 and the terminal 102 in any of the above methods, which are not described in detail here. The receiving module is used to execute the steps related to receiving performed by the network device 101 and the terminal 102 in any of the above methods, which are not described in detail here.

[0341] Figure 7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0342] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 7101 is used to call instructions to enable the communication device 7100 to perform any of the above methods.

[0343] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.

[0344] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the communication steps such as sending and receiving in the above method are performed by the transceiver 7103, and the other steps are performed by the processor 7101.

[0345] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0346] Optionally, the communication device 7100 further includes one or more interface circuits 7104, which are connected to the memory 7102. The interface circuits 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuits 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0347] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0348] 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.

[0349] The chip 7200 includes one or more processors 7201 , and the processor 7201 is used to call instructions so that the chip 7200 executes any of the above methods.

[0350] In some embodiments, chip 7200 further includes one or more interface circuits 7202, which are connected to memory 7203. Interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and can be used to send signals to memory 7203 or other devices. For example, interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0351] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0352] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0353] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0354] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0355] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0356] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0357] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0358] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A mapping method, characterized in that: The method comprises: The first device determines at least one physical uplink shared channel resource unit PRU corresponding to one or more physical uplink shared channel opportunities PO within a configuration authorization CG period; The first device determines a mapping relationship between at least one synchronization signal block SSB corresponding to a CG cycle and at least one PRU within the CG cycle.

2. The method according to claim 1, characterized in that The determining at least one PRU corresponding to one or more POs within a CG cycle includes: Determine a first configuration, where the first configuration is used to configure at least one of the following: the number of POs in a CG period, and the demodulation reference signal DMRS configuration corresponding to the PO; wherein the DMRS configuration includes one or more of a DMRS mapping type, a DMRS port, and a DMRS scrambling identification ID; wherein different DMRS scrambling IDs are used to generate different DMRS sequences; Based on the first configuration, at least one PRU corresponding to one or more POs within a CG period is determined, and the at least one PRU is numbered in sequence; wherein, the resources occupied by each DMRS port corresponding to each DMRS sequence on each PO correspond to a PRU.

3. The method according to claim 2, characterized in that The DMRS mapping type includes: DMRS type 1 and / or DMRS type 2; The first configuration can configure N DMRS scrambling IDs, where N is a positive integer and N≤4.

4. The method according to claim 2, characterized in that The sequentially numbering the at least one PRU includes: The CG period includes a PO, and the at least one PRU is numbered sequentially according to a first method; The CG period includes multiple POs, and the at least one PRU is numbered in sequence according to the second method.

5. The method according to claim 4, characterized in that The first method is: First, the PRUs corresponding to the DMRS ports corresponding to the first DMRS sequence are numbered in sequence, and then the PRUs corresponding to the DMRS ports of the second DMRS sequence are numbered in sequence, until the PRUs corresponding to the DMRS ports corresponding to all DMRS sequences are numbered.

6. The method according to claim 4, characterized in that The PO time domain positions and / or PO frequency domain positions among multiple POs within the CG period are different; wherein, the PO time domain position is: the time domain position where the PO is located, and the PO frequency domain position is: the frequency domain position where the PO is located.

7. The method according to claim 4 or 6, characterized in that The second method is: The PRUs corresponding to each DMRS port corresponding to all DMRS sequences of PO at all PO frequency domain positions at the first PO time domain position of the CG period are numbered in sequence in a predetermined manner, and then the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of PO at all PO frequency domain positions at the second PO time domain position of the CG period are numbered in sequence in a predetermined manner until the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of PO at all PO frequency domain positions at all PO time domain positions in the CG period are numbered.

8. The method according to claim 7, characterized in that The reservation method includes: First, number the PRUs corresponding to each DMRS port corresponding to the first DMRS sequence of the PO at the first PO frequency domain position in the PO time domain position in sequence, and then number the PRUs corresponding to each DMRS port corresponding to the second DMRS sequence of the PO at the first PO frequency domain position in the PO time domain position in sequence, so as to determine the numbering of the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at the first PO frequency domain position in the PO time domain position; then number the PRUs corresponding to each DMRS port corresponding to the first DMRS sequence of the PO at the second PO frequency domain position in the PO time domain position in sequence, and number the PRUs corresponding to each DMRS port corresponding to the second DMRS sequence of the PO at the second PO frequency domain position in the PO time domain position in sequence, so as to determine the numbering of the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at the second PO frequency domain position in the PO time domain position, until the PRUs corresponding to each DMRS port corresponding to all DMRS sequences of the PO at all PO frequency domain positions in the PO time domain position are numbered.

9. The method according to any one of claims 2 to 8, characterized in that: The determining a mapping relationship between at least one SSB corresponding to a CG period and at least one PRU in the CG period includes: Determine a second configuration, where the second configuration is used to configure at least one of the following: at least one SSB corresponding to the CG period, and a mapping ratio between the SSB and the PRU; Based on the second configuration and the number of the at least one PRU, a mapping relationship between at least one SSB corresponding to the CG period and at least one PRU in the CG period is determined.

10. The method according to any one of claims 1 to 9, characterized in that: The determining of a mapping relationship between at least one SSB corresponding to a CG period and at least one PRU in the CG period includes at least one of the following: Determine the mapping relationship between all SSBs corresponding to the CG period and the PRUs in the CG period, so as to complete a round of mapping from the SSBs in the CG period to the PRUs; There are still PRUs not mapped to SSBs in the CG period, and the PRUs not mapped to SSBs can complete one round of mapping from SSBs to PRUs, and determine the mapping relationships between all SSBs corresponding to the CG period and the PRUs not mapped to SSBs in the CG period, so as to complete another round of mapping from SSBs to PRUs in the CG period; There are no PRUs that are not mapped to the SSB in the CG period, and / or there are PRUs that are not mapped to the SSB in the CG period, but the PRUs that are not mapped to the SSB cannot complete a round of mapping from SSB to PRU, and the mapping is stopped.

11. The method according to claim 9 or 10, characterized in that The first configuration and / or the second configuration enables M rounds of mapping between all SSBs corresponding to the CG cycle and PRUs in the CG cycle, where M is a positive integer.

12. The method according to any one of claims 1 to 11, characterized in that: The CG cycle includes multiple POs, and each PO needs to be transmitted repeatedly. The repeated transmission between different POs is performed sequentially or alternately.

13. The method according to any one of claims 1 to 12, characterized in that: The first device is a terminal or a network device.

14. The method according to claim 9, characterized in that The first device is a terminal, and determining the second configuration includes: The receiving network device sends the second configuration via a radio resource control RRC release message and / or a system information block SIB1.

15. The method according to any one of claims 1 to 14, characterized in that: The first device is a terminal, and the method further includes: Determine a target PRU, the SSB mapped by the target PRU is associated with a target downlink beam, and the target PRU is used to indicate the target downlink beam; The target PRU is used to send data to the network device.

16. The method according to any one of claims 1 to 15, characterized in that: The CG period is used for small data packet transmission SDT.

17. A mapping method, characterized in that: Used in a communication system, the communication system includes a network device and a terminal, and the method includes at least one of the following: The network device determines at least one physical uplink shared channel resource unit PRU corresponding to one or more physical uplink shared channel opportunities PO within a configuration authorization CG period; The network device determines a mapping relationship between at least one synchronization signal block SSB corresponding to a CG period and at least one PRU in the CG period; The terminal determines at least one physical uplink shared channel resource unit PRU corresponding to one or more physical uplink shared channel opportunities PO within a configuration authorization CG period; The terminal determines the mapping relationship between at least one synchronization signal block SSB corresponding to the CG period and at least one PRU within the CG period.

18. A first device, comprising: A processing module, used to determine at least one physical uplink shared channel resource unit PRU corresponding to one or more physical uplink shared channel opportunities PO within a configuration authorization CG period; The processing module is also used to determine the mapping relationship between at least one synchronization signal block SSB corresponding to the CG cycle and at least one PRU in the CG cycle.

19. A communication device, characterized in that: include: one or more processors; The one or more processors are used to call instructions so that the communication device executes the mapping method according to any one of claims 1-16.

20. A communication system, characterized in that: It comprises a terminal and a network device, wherein the terminal or the network device is configured to implement the mapping method according to any one of claims 1 to 16.

21. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is enabled to execute the mapping method according to any one of claims 1 to 16.

Images