Transmission processing method and apparatus

Abstract

The present invention relates to the technical field of communications, and provides a transmission processing method and apparatus. The method of the present invention comprises: a terminal sends a preamble sequence to a network-side device, wherein the preamble sequence or a random access channel occasion (RO) corresponding to the preamble sequence is used for requesting repeated transmission of a first PDSCH or notifying the network-side device that the terminal has the capability of repeated transmission of the first PDSCH, and the first PDSCH carries Msg4; the terminal receives indication information sent by the network-side device, wherein the indication information is used for indicating the number of repetitions of the first PDSCH.

Description

A transmission processing method and device

[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on February 5, 2024, with application number 202410165601.1 and application name “A Transmission Processing Method, Device and Equipment,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to a transmission processing method and device. Background Art

[0003] Currently, non-terrestrial networks (NTNs) are a key technology for fifth-generation (5G) cellular network communication systems, targeting new applications such as satellite communications and low-altitude communications. This technology marks the transition of 5G technology from ground-based network communications to space-based network communications. By integrating satellite communication networks with terrestrial 5G networks, ubiquitous coverage can be provided regardless of topographical constraints. 5G NTN technology enables mobile phones to connect directly to cellular broadband networks via satellite, transcending the one-way transmission limitations of mobile phones to achieve two-way communication and network connectivity.

[0004] However, due to the scarcity of onboard power resources and the possibility that satellites may adopt a multi-beam working mechanism, the downlink budget of NTN will become very tight. In particular, the link margin of the Physical Downlink Shared Channel (PDSCH) of the fourth random access message Msg4 is very low. Therefore, sufficient transmission is required to achieve coverage enhancement. However, how to ensure the effectiveness of repeated transmission of the PDSCH of Msg4 has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of the present disclosure is to provide a transmission processing method and apparatus to ensure the effectiveness of repeated transmission of PDSCH of Msg4.

[0006] To achieve the above objectives, the present disclosure provides a transmission processing method, including:

[0007] The terminal sends a preamble sequence to the network side device, where the preamble sequence or a random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of the first PDSCH or to notify the network side device that the terminal has the capability of repeated transmission of the first PDSCH, and the first PDSCH carries a fourth random access message Msg4;

[0008] The terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0009] In some embodiments, the terminal sends a preamble sequence to the network side device, including:

[0010] When measuring the synchronization signal block SSB sent by the network side device and the measurement result indicates that the reference signal receiving power of the SSB is less than the first receiving power threshold, the terminal sends the preamble code sequence.

[0011] In some embodiments, the first receiving power threshold is a predefined receiving power threshold; or,

[0012] The first received power threshold is determined based on at least one of: a second received power threshold, an offset value corresponding to the second received power threshold;

[0013] The second receiving power threshold is a receiving power threshold used for repeated transmission of a physical uplink shared channel PUSCH, and the PUSCH carries a third random access message Msg3.

[0014] In some embodiments, the terminal receives the indication information sent by the network side device, including:

[0015] The terminal receives the indication information through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0016] In some embodiments, the indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

[0017] In some embodiments, the method further comprises:

[0018] The terminal determines, by the mapping relationship, a number of repetitions of the first PDSCH corresponding to the transport block scaling factor in the received PDCCH;

[0019] The terminal receives the first PDSCH based on the number of repetitions of the first PDSCH.

[0020] To achieve the above objectives, the present disclosure further provides a transmission processing method, including:

[0021] The network side device receives a preamble sequence sent by the terminal, where the preamble sequence or a random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel PDSCH or to notify the network side device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message Msg4;

[0022] The network side device sends indication information to the terminal, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0023] In some embodiments, the method further comprises:

[0024] The network-side device determines the number of repeated transmissions of the first PDSCH by performing channel measurement on the preamble sequence.

[0025] In some embodiments, the network side device sends instruction information to the terminal, including:

[0026] The network side device sends the indication information through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0027] In some embodiments, the indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

[0028] In some embodiments, the method further comprises:

[0029] The network side device sends the first PDSCH based on the number of repetitions of the first PDSCH.

[0030] In order to achieve the above-mentioned purpose, the embodiment of the present disclosure further provides a transmission processing device, including: a memory, a transceiver, and a processor;

[0031] A memory for storing program instructions; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the program instructions in the memory and performing the following operations:

[0032] Sending a preamble sequence to a network device, where the preamble sequence or a random access opportunity (RO) corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel (PDSCH) or to notify the network device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message (Msg4);

[0033] Receive indication information sent by the network side device, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0034] In some embodiments, the processor is further configured to:

[0035] When the synchronization signal block SSB sent by the network side device is measured and the measurement result indicates that the reference signal receiving power of the SSB is less than the first receiving power threshold, the preamble code sequence is sent.

[0036] In some embodiments, the first receiving power threshold is a predefined receiving power threshold; or,

[0037] The first received power threshold is determined based on at least one of: a second received power threshold, an offset value corresponding to the second received power threshold;

[0038] The second receiving power threshold is a receiving power threshold used for repeated transmission of a physical uplink shared channel PUSCH, and the PUSCH carries a third random access message Msg3.

[0039] In some embodiments, the processor is further configured to:

[0040] The indication information is received through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0041] In some embodiments, the indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

[0042] In some embodiments, the processor is further configured to:

[0043] Determine, by means of the mapping relationship, a number of repetitions of the first PDSCH corresponding to the transport block scaling factor in the received PDCCH;

[0044] The first PDSCH is received based on the number of repetitions of the first PDSCH.

[0045] To achieve the above objectives, the present invention further provides a transmission processing device, including:

[0046] A first sending module is configured to send a preamble sequence to a network-side device, where the preamble sequence or a random access opportunity (RO) corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel (PDSCH) or to notify the network-side device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message (Msg4);

[0047] The first receiving module is used to receive indication information sent by the network side device, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0048] To achieve the above objectives, an embodiment of the present disclosure further provides a transmission processing device, comprising: a memory, a transceiver, and a processor; the memory is configured to store program instructions; the transceiver is configured to transmit and receive data under the control of the processor; and the processor is configured to read the program instructions in the memory and perform the following operations:

[0049] receiving a preamble sequence sent by a terminal, where the preamble sequence or a random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel PDSCH or to notify the network side device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message Msg4;

[0050] Send indication information to the terminal, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0051] In some embodiments, the processor is further configured to:

[0052] The number of repeated transmissions of the first PDSCH is determined by performing channel measurement on the preamble sequence.

[0053] In some embodiments, the processor is further configured to:

[0054] The indication information is sent through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0055] In order to achieve the above-mentioned purpose, an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores program instructions, and the program instructions are used to enable the processor to execute the transmission processing method as described above.

[0056] In order to achieve the above objectives, an embodiment of the present disclosure further provides a computer program product, including computer instructions, which implement the steps of the transmission processing method described above when executed by a processor.

[0057] The above technical solution disclosed in the present invention has at least the following beneficial effects:

[0058] In the above-mentioned technical solution of the embodiment of the present disclosure, after the terminal sends a preamble sequence to the network side device to notify the network side device that it needs to repeatedly send the first PDSCH, it will further receive indication information sent by the network side device indicating the number of repetitions of the first PDSCH. In this way, the terminal can repeatedly receive the first PDSCH according to the number of repetitions of the first PDSCH, ensuring that the transmission of the PDSCH of Msg4 is effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] FIG1 is a schematic diagram of a flow chart of a method according to an embodiment of the present disclosure;

[0060] FIG2 is a second flow chart of the method according to an embodiment of the present disclosure;

[0061] FIG3 is a structural block diagram of a device according to an embodiment of the present disclosure;

[0062] FIG4 is a schematic diagram of a module of a device according to an embodiment of the present disclosure;

[0063] FIG5 is a second structural block diagram of the device according to an embodiment of the present disclosure;

[0064] FIG6 is a second schematic diagram of modules of the device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0065] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0066] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0067] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0068] It is worth noting that the technologies involved in the embodiments of the present disclosure include the following:

[0069] Considering that satellites are likely to adopt a multi-beam operating mechanism in the future and that onboard power resources are already very scarce, the transmit power of a single beam will inevitably be affected, and the downlink budget will become very tight. To this end, a performance evaluation of each downlink physical channel (Synchronization Signal Block (SSB), Physical Downlink Control Channel (PDCCH), Msg2 Physical Downlink Shared Channel (PDSCH), Msg4 PDSCH) was conducted, as shown in Table 1 below:

[0070] Table 1

[0071] Therefore, the evaluation results show that the link margin of Msg4 PDSCH is the lowest, and its coverage needs to be enhanced.

[0072] It should be noted that, in the four-step random access process, the interaction messages of each step are respectively referred to as Msg1 to Msg4, wherein the first random access message is also called the first contention-based random access message, namely Msg1, the second random access message is also called the second contention-based random access message, namely Msg2, the third random access message is also called the third contention-based random access message, namely Msg3, and the fourth random access message is also called the fourth contention-based random access message, namely Msg4.

[0073] In the disclosed embodiment, the PDSCH carrying or bearing Msg2 may also be recorded as Msg2 PDSCH; the physical uplink shared channel (PUSCH) carrying or bearing Msg3 may also be recorded as Msg3 PUSCH; and the PDSCH carrying or bearing Msg4 may also be recorded as Msg4 PDSCH.

[0074] In the embodiment of the present disclosure, the PDCCH scheduled to bear or carry the PDSCH of Msg2 may also be referred to as Msg2 PDCCH.

[0075] The transport block (TB) scaling factor field in the PDCCH has a length of 2 bits.

[0076] The 2-bit information can indicate up to four states, namely {1 2 4 8}.

[0077] The TB scaling configuration scaling factors are 1, 1 / 2, and 1 / 4, as shown in Table 2 below.

[0078] Table 2

[0079] TB scaling is used to reduce the data load, the number of information bits carried by the transport block N info The calculation formula is N info =S·N RE ·R·Q m υ, N RE is the number of REs in the allocated time-frequency resources; R is the coding rate; Q m is the modulation order; υ is the number of data layers; S is the configured Scaling factor, which can be understood as a disguised reduction of the bit rate.

[0080] In the embodiments of the present disclosure, repeated transmission of the PDSCH may be understood as enhancement of the PDSCH.

[0081] The present disclosure provides a transmission processing method and apparatus. The method and apparatus are based on the same patent application concept. Since the method and apparatus solve similar problems, the implementation of the apparatus and method can refer to each other, and the repetitive parts will not be repeated.

[0082] As shown in FIG1 , a transmission processing method provided by an embodiment of the present disclosure includes:

[0083] Step 101: The terminal sends a preamble sequence to the network side device. The preamble sequence or the random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of the first physical downlink shared channel PDSCH or to notify the network side device that the terminal has the ability to repeatedly transmit the first PDSCH. The first PDSCH carries the fourth random access message Msg4.

[0084] Here, the terminal sends a preamble sequence, and requests repeated transmission of the first PDSCH through the preamble sequence or the (RACH Occasion, RO) corresponding to the preamble sequence, or notifies the network side device that the terminal has the ability to repeatedly transmit the first PDSCH, so as to notify the network side device that Msg4 PDSCH needs to be repeatedly transmitted, or, when the network side device determines that Msg4 PDSCH needs to be repeatedly transmitted, it is understood whether the terminal can support repeated transmission of the first PDSCH so as to continue subsequent processing.

[0085] Step 102: The terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0086] The number of repetitions of the first PDSCH is determined by the network device after determining that Msg4 PDSCH repetitions are required. For example, the network device performs channel measurement on the preamble sequence sent by the terminal in step 101 and determines the number of repetitions of the first PDSCH based on the channel state information obtained from the measurement. The number of repetitions of the first PDSCH is notified to the terminal by generating indication information.

[0087] In this way, according to the above steps, after the terminal sends the preamble sequence to the network side device to notify the network side device that the first PDSCH needs to be repeatedly sent, it will further receive the indication information sent by the network side device indicating the number of repetitions of the first PDSCH. In this way, the terminal can repeatedly receive the first PDSCH according to the number of repetitions of the first PDSCH to ensure that the transmission of the PDSCH of Msg4 is effective.

[0088] In one embodiment, a specific preamble sequence is predefined or configured to request repeated transmission of the first PDSCH or to notify the network side device that the terminal has the ability to repeatedly transmit the first PDSCH. When the preamble sequence received by the network side device is the specific preamble sequence, it is determined that repeated transmission of the first PDSCH is required.

[0089] In one embodiment, a specific RO is predefined or configured to request repeated transmission of the first PDSCH or to notify the network side device that the terminal has the ability to repeatedly transmit the first PDSCH. When the preamble sequence received by the network side device is located on the specific RO, it is determined that repeated transmission of the first PDSCH is required.

[0090] It should be noted that, in this embodiment, the preamble sequence or the RO corresponding to the preamble sequence can also be understood as a repetition request for Msg4 PDSCH, indicating that the terminal has the Msg4 PDSCH repetition capability.

[0091] In some embodiments, the terminal sends a preamble sequence to the network side device, including:

[0092] When measuring the synchronization signal block SSB sent by the network side device and the measurement result indicates that the reference signal receiving power of the SSB is less than the first receiving power threshold, the terminal sends the preamble code sequence.

[0093] That is, the terminal measures the SSB sent by the network side device, and sends the preamble sequence when the measurement result indicates that the reference signal received power (RSRP) of the SSB is less than the first received power threshold. Since the preamble sequence or the preamble sequence is used to request repeated transmission of the first PDSCH or to notify the network side device that the terminal has the ability to repeatedly transmit the first PDSCH, the first received power threshold can be understood as being used to trigger repeated transmission of the first PDSCH.

[0094] In some embodiments, in this embodiment, the first receiving power threshold is a predefined receiving power threshold; or,

[0095] The first received power threshold is determined based on at least one of: a second received power threshold, an offset value corresponding to the second received power threshold;

[0096] The second receiving power threshold is a receiving power threshold used for repeated transmission of a physical uplink shared channel PUSCH, and the PUSCH carries a third random access message Msg3.

[0097] In this manner, if the first received power threshold is a predefined received power threshold, the first received power threshold can be predefined as an arbitrary value. Typically, it is predefined as a specific value or range based on transmission requirements. Of course, the predefined received power threshold can be equal to the second received power threshold, or have a certain difference from the second received power threshold. In this case, the first received power threshold can be expressed as an absolute value.

[0098] Alternatively, the first received power threshold can be directly determined from the second received power threshold and / or the offset value corresponding to the second received power threshold. For example, the second received power threshold is used as the first received power threshold; based on the second received power threshold, the first received power threshold is calculated in combination with the offset value. In this case, the first received power threshold can be expressed as an absolute value, an offset value (the second received power threshold is known by default), or specific information (specific information indicates that the second received power threshold should be used).

[0099] Regarding the second receiving power threshold, it can be known that: the second receiving power threshold is used to trigger repeated transmission of Msg3 PUSCH.

[0100] In addition, in this embodiment, the network side device determines the number of repetitions required to send the Msg4 PDSCH by performing channel measurement on the preamble sequence sent by the terminal, and then indicates the number of repetitions through the PDCCH. Therefore, in some embodiments, the terminal receives the indication information sent by the network side device, including:

[0101] The terminal receives the indication information through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0102] The network-side device schedules Msg2 PDCCH to indicate the number of repetitions of Msg4 PDSCH to the terminal without adding new signaling overhead.

[0103] In one implementation, Msg2 PDCCH includes downlink control information (DCI) 1-0 scrambled by a random access radio network temporary identity (RA-RNTI), and the indication information is carried in an information field of the DCI 1-0.

[0104] In some embodiments, in this embodiment, the indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

[0105] The transport block scaling factor may be information in the TB scaling field, or may be a scaling factor indicated by the TB scaling field.

[0106] In this way, the network-side device multiplexes the TB scaling in Msg2 PDCCH to indicate the number of repetitions of the first PDSCH. When the terminal receives Msg2 PDCCH, the number of repetitions of the first PDSCH is determined by the mapping relationship between the Scaling Factor configured by TB scaling and the number of repetitions of the first PDSCH, without adding new information bits to indicate the number of repetitions.

[0107] Of course, a mapping relationship between other information in the Msg2 PDCCH and the number of repetitions of the first PDSCH may also be set so that the other information indicates the number of repetitions of the first PDSCH, which will not be described in detail here.

[0108] In addition, in this embodiment, for Msg2 PDSCH, the demodulation performance when different Scaling factors are configured and the demodulation performance when Msg4 PDSCH adopts repeated transmission are shown in Table 3 below.

[0109] Table 3

[0110] That is, when the scaling factor is set to 1, the demodulation threshold is similar to that when the Msg4 PDSCH is not repeated; when the scaling factor is set to 0.5, the demodulation threshold is similar to that when the Msg4 PDSCH is repeated twice; when the scaling factor is set to 0.25, the demodulation threshold is similar to that when the Msg4 PDSCH is repeated four times, with the error between the two being no more than 1dB. Since the SSB threshold is -11.3dB, the demodulation threshold when the Msg4 PDSCH is repeated four times reaches -11.0dB, which almost meets the downlink enhancement requirement. Therefore, the maximum number of repetitions can be set to 4.

[0111] Therefore, in one implementation, the mapping relationship between the transport block scaling factor and the number of repetitions of the first PDSCH is shown in Table 4 below.

[0112] Table 4

[0113] Among them, the corresponding TB scaling field "11" can also be configured as 8 Msg4 PDSCH repetition times.

[0114] Of course, the mapping relationship between the transport block scaling factor and the number of repetitions of the first PDSCH is not limited to the content of Table 4 above, and can also be implemented in other ways, which are not listed here one by one.

[0115] In some embodiments, the method further comprises:

[0116] The terminal determines, by the mapping relationship, a number of repetitions of the first PDSCH corresponding to the transport block scaling factor in the received PDCCH;

[0117] The terminal receives the first PDSCH based on the number of repetitions of the first PDSCH.

[0118] That is to say, after the terminal receives the Msg2 PDCCH, the mapping relationship between the Scaling Factor configured by TB scaling and the number of repetitions of the first PDSCH is determined. After that, the terminal can receive the first PDSCH multiple times according to the determined number of repetitions of the first PDSCH to avoid omissions.

[0119] The following describes the application of the method of the embodiment of the present disclosure with reference to specific examples:

[0120] Example 1:

[0121] 1. A terminal (such as a user equipment (UE)) performs a cell search and measures a received SSB, and the measured RSRP is lower than a first receiving power threshold.

[0122] 2. The UE uses a specific preamble sequence (used to request repeated transmission of the first PDSCH or to notify the network side device that the terminal has the ability to repeatedly transmit the first PDSCH) to initiate a four-step access process.

[0123] 3. The network side device (such as the base station) identifies that the UE has the Msg4 PDSCH repetition capability by receiving the preamble sequence and needs to repeat the transmission for the Msg4 PDSCH.

[0124] 4. The base station performs channel measurement on the preamble sequence to obtain channel state information and determines that the scaling factor for Msg2 PDSCH should be 0.5 and the number of repetitions required for Msg4 PDSCH is 2.

[0125] 5. The base station sends Msg2 PDCCH, where the TB scaling field in the DCI is configured as 01.

[0126] 6. The UE correctly receives Msg2 PDCCH, receives Msg2 PDSCH with a scaling factor of 0.5, and after sending Msg3, receives Msg4 PDSCH with a repetition count of 2.

[0127] Example 2:

[0128] 1. The UE performs a cell search and measures the received SSB, and the measured RSRP is lower than the first receiving power threshold.

[0129] 2. The UE initiates a four-step access procedure using a specific preamble RO (used for repeated requests for Msg4 PDSCH).

[0130] 3. The base station identifies that the UE has the Msg4 PDSCH repetition capability by receiving the RO of the preamble sequence and needs to repeat the transmission of the Msg4 PDSCH.

[0131] 4. The base station performs channel measurement on the preamble sequence to obtain channel state information and determines that the scaling factor for Msg2 PDSCH should be 0.25 and the number of repetitions required for Msg4 PDSCH is 4.

[0132] 5. The base station sends Msg2 PDCCH, where the TB scaling field in the DCI is configured as 10.

[0133] 6. The UE side correctly receives Msg2 PDCCH, receives Msg2 PDSCH with a scaling factor of 0.25, and after sending Msg3, receives Msg4 PDSCH with a repetition number of 4.

[0134] To sum up, after the terminal sends the preamble sequence to the network side device and notifies the network side device that it needs to repeatedly send the first PDSCH, it will further receive the indication information sent by the network side device indicating the number of repetitions of the first PDSCH. In this way, the terminal can repeatedly receive the first PDSCH according to the number of repetitions of the first PDSCH to ensure that the transmission of the PDSCH of Msg4 is effective.

[0135] As shown in FIG2 , the embodiment of the present disclosure further provides a transmission processing method, including:

[0136] Step 201: A network-side device receives a preamble sequence sent by a terminal. The preamble sequence or a random access opportunity (RO) corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel (PDSCH) or to notify the network-side device that the terminal is capable of repeated transmission of the first PDSCH. The first PDSCH carries a fourth random access message (Msg4).

[0137] Step 202: The network-side device sends indication information to the terminal, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0138] In this way, the network side device receives the preamble sequence sent by the terminal, and after learning that the first PDSCH needs to be repeatedly sent, it will further send indication information indicating the number of repetitions of the first PDSCH. In this way, the terminal can repeatedly receive the first PDSCH according to the number of repetitions of the first PDSCH, ensuring that the transmission of the PDSCH of Msg4 is effective.

[0139] In some embodiments, the method further comprises:

[0140] The network-side device determines the number of repeated transmissions of the first PDSCH by performing channel measurement on the preamble sequence.

[0141] The network side device performs channel measurement on the preamble sequence to obtain channel state information, determines the number of repetitions of the first PDSCH based on the channel state information, and then sends the indication information to indicate the number of repetitions of the first PDSCH.

[0142] In some embodiments, the network side device sends instruction information to the terminal, including:

[0143] The network side device sends the indication information through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0144] In some embodiments, the indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

[0145] In some embodiments, the method further comprises:

[0146] The network side device sends the first PDSCH based on the number of repetitions of the first PDSCH.

[0147] That is, after determining the number of repetitions of the first PDSCH, the network-side device sends the first PDSCH multiple times according to the determined number of repetitions of the first PDSCH.

[0148] It should be noted that the method of the embodiment of the present disclosure is implemented in conjunction with the method executed by the above-mentioned terminal. The implementation method of the embodiment of the above-mentioned method is applicable to this method and can also achieve the same technical effect.

[0149] As shown in FIG3 , an embodiment of the present disclosure further provides a transmission processing device, including: a memory 320, a transceiver 310, and a processor 300. The memory 320 is configured to store program instructions; the transceiver 310 is configured to transmit and receive data under the control of the processor 300; and the processor 300 is configured to read the program instructions in the memory 320 and perform the following operations:

[0150] Sending a preamble sequence to a network side device, where the preamble sequence or a random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel PDSCH, or to notify the network side device that the terminal has the capability of repeated transmission of the first PDSCH. The first PDSCH carries a fourth random access message Msg4;

[0151] Receive indication information sent by the network side device, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0152] In Figure 3, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits such as one or more processors represented by processor 300 and memory represented by memory 320. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 310 can be multiple components, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, or an optical cable. For different user devices, the user interface 330 can also be an interface capable of connecting to external or internal devices as needed, including but not limited to keypads, displays, speakers, microphones, joysticks, and the like. The processor 300 is responsible for managing the bus architecture and general processing, while the memory 320 can store data used by the processor 300 when performing operations.

[0153] The processor 300 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0154] In some embodiments, the processor is further configured to:

[0155] When the synchronization signal block SSB sent by the network side device is measured and the measurement result indicates that the reference signal receiving power of the SSB is less than the first receiving power threshold, the preamble code sequence is sent.

[0156] In some embodiments, the first receiving power threshold is a predefined receiving power threshold; or,

[0157] The first received power threshold is determined based on at least one of: a second received power threshold, an offset value corresponding to the second received power threshold;

[0158] The second receiving power threshold is a receiving power threshold used for repeated transmission of a physical uplink shared channel PUSCH, and the PUSCH carries a third random access message Msg3.

[0159] In some embodiments, the processor is further configured to:

[0160] The indication information is received through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0161] In some embodiments, the indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

[0162] In some embodiments, the processor is further configured to:

[0163] Determine, by means of the mapping relationship, a number of repetitions of the first PDSCH corresponding to the transport block scaling factor in the received PDCCH;

[0164] The first PDSCH is received based on the number of repetitions of the first PDSCH.

[0165] The apparatus of the embodiment of the present disclosure, after sending a preamble sequence to the network side device to notify the network side device that it needs to repeatedly send the first PDSCH, will further receive indication information sent by the network side device indicating the number of repetitions of the first PDSCH. In this way, the terminal can repeatedly receive the first PDSCH according to the number of repetitions of the first PDSCH, thereby ensuring that the transmission of the PDSCH of Msg4 is effective.

[0166] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0167] As shown in FIG4 , the present disclosure also provides a transmission processing device, including:

[0168] A first sending module 410 is configured to send a preamble sequence to a network device, where the preamble sequence or a random access opportunity (RO) corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel (PDSCH) or to notify the network device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message (Msg4);

[0169] The first receiving module 420 is configured to receive indication information sent by the network side device, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0170] In some embodiments, the first sending module is further configured to:

[0171] When the synchronization signal block SSB sent by the network side device is measured and the measurement result indicates that the reference signal receiving power of the SSB is less than the first receiving power threshold, the preamble code sequence is sent.

[0172] In some embodiments, the first receiving power threshold is a predefined receiving power threshold; or,

[0173] The first received power threshold is determined based on at least one of: a second received power threshold, an offset value corresponding to the second received power threshold;

[0174] The second receiving power threshold is a receiving power threshold used for repeated transmission of a physical uplink shared channel PUSCH, and the PUSCH carries a third random access message Msg3.

[0175] In some embodiments, the first sending module is further configured to:

[0176] The indication information is received through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0177] In some embodiments, the indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

[0178] In some embodiments, the apparatus further comprises:

[0179] A first processing module is configured to determine, through the mapping relationship, a number of repetitions of the first PDSCH corresponding to the transport block scaling factor in the received PDCCH;

[0180] The third receiving module is configured to receive the first PDSCH based on the number of repetitions of the first PDSCH.

[0181] The apparatus of the embodiment of the present disclosure, after sending a preamble sequence to the network side device to notify the network side device that it needs to repeatedly send the first PDSCH, will further receive indication information sent by the network side device indicating the number of repetitions of the first PDSCH. In this way, the terminal can repeatedly receive the first PDSCH according to the number of repetitions of the first PDSCH, thereby ensuring that the transmission of the PDSCH of Msg4 is effective.

[0182] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0183] In some embodiments of the present disclosure, a processor-readable storage medium is further provided, wherein the processor-readable storage medium stores program instructions, and the program instructions are used to cause the processor to execute the following steps:

[0184] Sending a preamble sequence to the network side device, where the preamble sequence or a random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel PDSCH or to notify the network side device terminal of the ability to repeatedly transmit the first PDSCH, where the first PDSCH carries a fourth random access message Msg4;

[0185] Receive indication information sent by the network side device, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0186] In some embodiments, sending a preamble sequence to a network-side device includes:

[0187] When the synchronization signal block SSB sent by the network side device is measured and the measurement result indicates that the reference signal receiving power of the SSB is less than the first receiving power threshold, the preamble code sequence is sent.

[0188] In some embodiments, the first receiving power threshold is a predefined receiving power threshold; or,

[0189] The first received power threshold is determined based on at least one of: a second received power threshold, an offset value corresponding to the second received power threshold;

[0190] The second receiving power threshold is a receiving power threshold used for repeated transmission of a physical uplink shared channel PUSCH, and the PUSCH carries a third random access message Msg3.

[0191] In some embodiments, the receiving the indication information sent by the network side device includes:

[0192] The indication information is received through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0193] In some embodiments, the indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

[0194] In some embodiments, it further includes:

[0195] Determine, by means of the mapping relationship, a number of repetitions of the first PDSCH corresponding to the transport block scaling factor in the received PDCCH;

[0196] The first PDSCH is received based on the number of repetitions of the first PDSCH.

[0197] When the program instructions are executed by the processor, all implementation methods of the above-mentioned method embodiment applied to the terminal side as shown in Figure 1 can be implemented. To avoid repetition, they will not be repeated here.

[0198] As shown in FIG5 , the present disclosure also provides a transmission processing device, including: a memory 520, a transceiver 510, and a processor 500: the memory 520 is used to store program instructions; the transceiver 510 is used to send and receive data under the control of the processor 500; the processor 500 is used to read the program instructions in the memory 520 and perform the following operations:

[0199] receiving a preamble sequence sent by a terminal, where the preamble sequence or a random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel PDSCH or to notify a network device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message Msg4;

[0200] Send indication information to the terminal, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0201] In FIG5 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 500 and memory represented by memory 520. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 510 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like.

[0202] The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.

[0203] Optionally, the processor 500 may be a CPU, an ASIC, an FPGA, or a CPLD, and the processor may also adopt a multi-core architecture.

[0204] The processor 500 calls the program instructions stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor 500 and the memory 520 can also be physically separated.

[0205] In some embodiments, the processor is further configured to:

[0206] The number of repeated transmissions of the first PDSCH is determined by performing channel measurement on the preamble sequence.

[0207] In some embodiments, the processor is further configured to:

[0208] The indication information is sent through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0209] In some embodiments, the indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

[0210] In some embodiments, the processor is further configured to:

[0211] The first PDSCH is sent based on the number of repetitions of the first PDSCH.

[0212] The device of the embodiment of the present disclosure receives the preamble sequence sent by the terminal, and after learning that the first PDSCH needs to be repeatedly sent, it will further send indication information indicating the number of repetitions of the first PDSCH. In this way, the terminal can repeatedly receive the first PDSCH according to the number of repetitions of the first PDSCH, ensuring that the transmission of the PDSCH of Msg4 is effective.

[0213] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0214] As shown in FIG6 , the present disclosure also provides a transmission processing device, including:

[0215] A second receiving module 610 is configured to receive a preamble sequence sent by a terminal, where the preamble sequence or a random access opportunity (RO) corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel (PDSCH) or to notify a network device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message (Msg4);

[0216] The second sending module 620 is configured to send indication information to the terminal, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0217] The device of the embodiment of the present disclosure receives the preamble sequence sent by the terminal, and after learning that the first PDSCH needs to be repeatedly sent, it will further send indication information indicating the number of repetitions of the first PDSCH. In this way, the terminal can repeatedly receive the first PDSCH according to the number of repetitions of the first PDSCH, ensuring that the transmission of the PDSCH of Msg4 is effective.

[0218] In some embodiments, the apparatus further comprises:

[0219] The second processing module is configured to determine the number of repeated transmissions of the first PDSCH by performing channel measurement on the preamble sequence.

[0220] In some embodiments, the second sending module is further configured to:

[0221] The indication information is sent through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0222] In some embodiments, the indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

[0223] In some embodiments, the apparatus further comprises:

[0224] The third sending module is used to send the first PDSCH based on the number of repetitions of the first PDSCH.

[0225] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0226] In some embodiments of the present disclosure, a processor-readable storage medium is further provided, wherein the processor-readable storage medium stores program instructions, and the program instructions are used to cause the processor to execute the following steps:

[0227] receiving a preamble sequence sent by a terminal, where the preamble sequence or a random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel PDSCH or to notify a network device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message Msg4;

[0228] Send indication information to the terminal, where the indication information is used to indicate the number of repetitions of the first PDSCH.

[0229] In some embodiments, it further includes:

[0230] The number of repeated transmissions of the first PDSCH is determined by performing channel measurement on the preamble sequence.

[0231] In some embodiments, the sending indication information to the terminal includes:

[0232] The indication information is sent through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

[0233] In some embodiments, the indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

[0234] In some embodiments, it further includes:

[0235] The first PDSCH is sent based on the number of repetitions of the first PDSCH.

[0236] When the program instructions are executed by the processor, all implementation methods of the above-mentioned method embodiment applied to the network side as shown in Figure 2 can be implemented. To avoid repetition, they are not described here.

[0237] The embodiment of the present disclosure also provides a computer program product, including computer instructions. When the computer instructions are executed by a processor, the various processes of the method embodiment shown in Figure 1 or Figure 2 above are implemented, and the same technical effect can be achieved. To avoid repetition, they are not described here.

[0238] The technical solution provided by the embodiment of the present disclosure can be applicable to a variety of systems, especially 5G systems. For example, applicable systems can be Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Advanced Long Term Evolution (LTE-A) system, Universal Mobile Telecommunication System (UMTS), Worldwide interoperability for Microwave Access (WiMAX) system, 5G New Radio (NR) system, etc. These various systems include terminal devices and network devices. The system may also include core network parts, such as the Evolved Packet System (EPS), 5G System (5GS), etc.

[0239] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0240] The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be called another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an IP communication network. The network device may also coordinate attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0241] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also use diversity transmission, precoded transmission, or beamforming transmission.

[0242] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0243] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0244] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0245] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0246] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0247] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0248] In addition, it should be noted that, in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it will be understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0249] It should be noted that it should be understood that the division of the above modules is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, these modules can all be implemented in the form of software called by a processing element; or they can all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, a module can be a separately established processing element, or it can be integrated into a chip of the above-mentioned device. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and called by a processing element of the above-mentioned device to perform the functions of the above-mentioned module. The implementation of other modules is similar. In addition, these modules can all or partly be integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. During implementation, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

[0250] For example, each module, unit, sub-unit or sub-module can be one or more integrated circuits configured to implement the above method, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs). For another example, when a module is implemented by scheduling program code through a processing element, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0251] The terms "first," "second," and the like in the specification and claims of the present disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present disclosure described herein may be implemented in a sequence other than that illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units need not be limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or devices. In addition, the use of "and / or" in the specification and claims to indicate at least one of the connected objects, for example, A and / or B and / or C, means that seven situations are included: A alone, B alone, C alone, both A and B present, both B and C present, both A and C present, and all A, B, and C present. Similarly, the use of "at least one of A and B" in the specification and claims should be understood to mean "A alone, B alone, or both A and B present."

[0252] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. A transmission processing method, wherein: include: The terminal sends a preamble sequence to the network side device, where the preamble sequence or the random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of the first physical downlink shared channel PDSCH or to notify the network side device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message Msg4; The terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repetitions of the first PDSCH.

2. The method according to claim 1, wherein The terminal sends a preamble sequence to the network side device, including: When measuring the synchronization signal block SSB sent by the network side device and the measurement result indicates that the reference signal receiving power of the SSB is less than the first receiving power threshold, the terminal sends the preamble code sequence.

3. The method according to claim 2, wherein: The first receiving power threshold is a predefined receiving power threshold; or, The first received power threshold is determined based on at least one of: a second received power threshold, an offset value corresponding to the second received power threshold; The second receiving power threshold is a receiving power threshold used for repeated transmission of a physical uplink shared channel PUSCH, and the PUSCH carries a third random access message Msg3.

4. The method according to claim 1, wherein The terminal receives the instruction information sent by the network side device, including: The terminal receives the indication information through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

5. The method according to claim 4, wherein: The indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

6. The method according to claim 5, wherein: Also includes: The terminal determines, by the mapping relationship, a number of repetitions of the first PDSCH corresponding to the transport block scaling factor in the received PDCCH; The terminal receives the first PDSCH based on the number of repetitions of the first PDSCH.

7. A transmission processing method, wherein: include: The network side device receives a preamble sequence sent by the terminal, where the preamble sequence or a random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel PDSCH or to notify the network side device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message Msg4; The network side device sends indication information to the terminal, where the indication information is used to indicate the number of repetitions of the first PDSCH.

8. The method according to claim 7, wherein: Also includes: The network-side device determines the number of repeated transmissions of the first PDSCH by performing channel measurement on the preamble sequence.

9. The method according to claim 7, wherein: The network side device sends instruction information to the terminal, including: The network side device sends the indication information through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

10. The method according to claim 9, wherein: The indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

11. The method according to claim 7, wherein: Also includes: The network side device sends the first PDSCH based on the number of repetitions of the first PDSCH.

12. A transmission processing device, wherein: include: Memory, transceiver, processor; a memory for storing program instructions; a transceiver, configured to transmit and receive data under the control of the processor; A processor is configured to read the program instructions in the memory and perform the following operations: Sending a preamble sequence to the network side device, where the preamble sequence or a random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel PDSCH or to notify the network side device terminal of the ability to repeatedly transmit the first PDSCH, where the first PDSCH carries a fourth random access message Msg4; Receive indication information sent by the network side device, where the indication information is used to indicate the number of repetitions of the first PDSCH.

13. The device according to claim 12, wherein The processor is further configured to: When the synchronization signal block SSB sent by the network side device is measured and the measurement result indicates that the reference signal receiving power of the SSB is less than the first receiving power threshold, the preamble code sequence is sent.

14. The device according to claim 13, wherein The first receiving power threshold is a predefined receiving power threshold; or, The first received power threshold is determined based on at least one of: a second received power threshold, an offset value corresponding to the second received power threshold; The second receiving power threshold is a receiving power threshold used for repeated transmission of a physical uplink shared channel PUSCH, and the PUSCH carries a third random access message Msg3.

15. The device according to claim 12, wherein The processor is further configured to: The indication information is received through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

16. The device according to claim 15, wherein The indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

17. The device according to claim 16, wherein The processor is further configured to: Determine, by means of the mapping relationship, a number of repetitions of the first PDSCH corresponding to the transport block scaling factor in the received PDCCH; The first PDSCH is received based on the number of repetitions of the first PDSCH.

18. A transmission processing device, wherein: include: A first sending module is configured to send a preamble sequence to a network-side device, where the preamble sequence or a random access opportunity (RO) corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel (PDSCH) or to notify the network-side device terminal of its ability to repeatedly transmit the first PDSCH, where the first PDSCH carries a fourth random access message (Msg4); The first receiving module is used to receive indication information sent by the network side device, where the indication information is used to indicate the number of repetitions of the first PDSCH.

19. A transmission processing device, wherein: include: Memory, transceiver, processor; a memory for storing program instructions; a transceiver, configured to transmit and receive data under the control of the processor; A processor is configured to read the program instructions in the memory and perform the following operations: receiving a preamble sequence sent by a terminal, where the preamble sequence or a random access opportunity RO corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel PDSCH or to notify a network device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message Msg4; Send indication information to the terminal, where the indication information is used to indicate the number of repetitions of the first PDSCH.

20. The device according to claim 19, wherein The processor is further configured to: The number of repeated transmissions of the first PDSCH is determined by performing channel measurement on the preamble sequence.

21. The apparatus according to claim 19, wherein The processor is further configured to: The indication information is sent through a downlink control channel PDCCH; wherein the PDCCH is used to schedule a second PDSCH, and the second PDSCH carries a second random access message Msg2.

22. The device according to claim 21, wherein The indication information is a transport block scaling factor, and a mapping relationship is set between the transport block scaling factor and the number of repetitions of the first PDSCH.

23. The apparatus according to claim 19, wherein The processor is further configured to: The first PDSCH is sent based on the number of repetitions of the first PDSCH.

24. A transmission processing device, wherein: include: A second receiving module is configured to receive a preamble sequence sent by a terminal, where the preamble sequence or a random access opportunity (RO) corresponding to the preamble sequence is used to request repeated transmission of a first physical downlink shared channel (PDSCH) or to notify a network device that the terminal has the capability of repeated transmission of the first PDSCH, where the first PDSCH carries a fourth random access message (Msg4); The second sending module is used to send indication information to the terminal, where the indication information is used to indicate the number of repetitions of the first PDSCH.

25. A processor-readable storage medium, wherein: The processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the transmission processing method according to any one of claims 1 to 6, or the transmission processing method according to any one of claims 7 to 11.

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