Channel transmission methods and devices, storage media

Abstract

This disclosure provides a channel transmission method, apparatus, and storage medium. The channel transmission method includes: a terminal mapping different beam indication information received by different transmit and receive points (TRPs) of a corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method; wherein the beam indication information is beam-related information used for uplink data channel (PUSCH) transmission; based on the beam indication information corresponding to the multiple target transmission opportunities, at the multiple target transmission opportunities, repeatedly transmitting transport blocks on the physical uplink data channel (PUSCH) or only transmitting the corresponding demodulation reference signal (DMRS). This disclosure achieves the purpose of enhancing the PUSCH in multi-TRP scenarios, improving the reliability of data transmission.

Description

Technical Field

[0001] This disclosure relates to the field of communications, and in particular to channel transmission methods and apparatus, and storage media. Background Technology

[0002] To improve coverage at the cell edge and provide a more balanced quality of service within the serving cell, multi-point collaboration remains an important technical means in NR (New Radio) systems.

[0003] From a network architecture perspective, network deployment using a large number of distributed access points combined with centralized baseband processing is more conducive to providing a balanced user experience rate and significantly reducing latency and signaling overhead caused by handover. As frequency bands increase, a relatively denser deployment of access points is also required to ensure network coverage. In higher frequency bands, with the increasing integration of active antenna devices, modular active antenna arrays will be more prevalent. Each TRP (Transmission and Receiving Point) antenna array can be divided into several relatively independent antenna panels, thus the overall array shape and number of ports can be flexibly adjusted according to deployment scenarios and service requirements. Antenna panels or TRPs can also be connected by optical fibers for more flexible distributed deployment. In the millimeter-wave band, as the wavelength decreases, the obstruction effect caused by obstacles such as people or vehicles becomes more significant. In this case, to ensure link robustness, the cooperation between multiple TRPs or panels can be utilized to transmit / receive from multiple angles and multiple beams, thereby reducing the adverse effects of obstruction.

[0004] In the R16 research phase, PDSCH (Physical Downlink Shared Channel) was enhanced based on the application of downlink multi-TRP or multi-point cooperative transmission technology between PANELs. Since data transmission involves scheduling feedback between uplink and downlink channels, enhancing only the downlink data channel is insufficient to guarantee service performance in URLLC (Ultra-relaible and Low Latency Communication) research. Therefore, in the R17 (Release 17) research, enhancements were further made to the downlink control channel PDCCH (Physical Downlink Control Channel), the uplink control channel PUCCH (Physical Uplink Control Channel), and the data channel PUSCH (Physical Uplink Shared Channel).

[0005] Taking PUSCH as an example, it can be enhanced by repeatedly transmitting PUSCH. However, current PUSCH transmission methods are only applicable to single TRPs and cannot be used in multi-TRP scenarios. Summary of the Invention

[0006] To overcome the problems existing in related technologies, this disclosure provides a channel transmission method and apparatus, and a storage medium.

[0007] According to a first aspect of the present disclosure, a channel transmission method is provided, comprising:

[0008] The terminal maps different beam indication information received by different transmit and receive points (TRPs) of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method; wherein, the beam indication information is beam-related information used for uplink data channel (PUSCH) transmission.

[0009] Based on the beam indication information corresponding to multiple target transmission times, at each of the multiple target transmission times, the transport block on the physical uplink data channel PUSCH is repeatedly transmitted or only the corresponding demodulation reference signal DMRS is transmitted individually.

[0010] Optionally, the terminal maps different beam indication information received by different transmitting and receiving points (TRPs) of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method, including:

[0011] The terminal maps the different beam indication information to K1 nominal transmission opportunities according to a predetermined mapping method; wherein the K1 nominal transmission opportunities are located in different time slots, the starting symbol positions of the K1 nominal transmission opportunities are the same in each time slot, and the number of continuous symbols in each time slot is the same.

[0012] Optionally, the step of repeatedly transmitting transport blocks on the Physical Uplink Data Channel (PUSCH) at the multiple target transmission times based on the beam indication information corresponding to each of the multiple target transmission times includes:

[0013] In response to determining that a first transmission opportunity exists among the K1 nominal transmission opportunities, a plurality of second transmission opportunities among the K1 nominal transmission opportunities are taken as the plurality of target transmission opportunities; wherein, the first transmission opportunity refers to a transmission opportunity among the K1 nominal transmission opportunities where uplink PUSCH transmission cannot be performed, and the plurality of second transmission opportunities refers to a plurality of transmission opportunities among the K1 nominal transmission opportunities where uplink PUSCH transmission can be performed.

[0014] Based on the beam indication information corresponding to the plurality of second transmission opportunities, the transport block on the PUSCH is repeatedly transmitted at the plurality of second transmission opportunities.

[0015] Optionally, the step of repeatedly transmitting transport blocks on the Physical Uplink Data Channel (PUSCH) or sending only the corresponding demodulation reference signal (DMRS) at the multiple target transmission times, based on the beam indication information corresponding to each of the multiple target transmission times, includes:

[0016] In response to determining that a first transmission opportunity exists among the K1 nominal transmission opportunities, the K1 nominal transmission opportunities are used as the plurality of target transmission opportunities; wherein, the first transmission opportunity refers to a transmission opportunity in which uplink PUSCH transmission cannot be performed;

[0017] Based on the beam indication information corresponding to the multiple second transmission opportunities, the transmission blocks on the PUSCH are repeatedly transmitted on the multiple second transmission opportunities, and the corresponding demodulation reference signal DMRS is transmitted only on the first transmission opportunity; wherein, the multiple second transmission opportunities refer to multiple transmission opportunities among the K1 nominal transmission opportunities in which uplink PUSCH transmission can be performed.

[0018] Optionally, transmitting only the corresponding demodulation reference signal DMRS at the first transmission time includes:

[0019] Based on the beam indication information mapped to the first transmission timing, only the corresponding demodulation reference signal DMRS is transmitted individually at the first transmission timing; or

[0020] Based on the beam indication information corresponding to the third transmission opportunity, after determining the beam indication information corresponding to the first transmission opportunity, only the corresponding demodulation reference signal DMRS is transmitted separately on the first transmission opportunity; wherein, the third transmission opportunity is the transmission opportunity adjacent to the first transmission opportunity among the K1 nominal transmission opportunities.

[0021] Optionally, the terminal maps different beam indication information received by different transmitting and receiving points (TRPs) of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method, including:

[0022] The terminal maps the different beam indication information to K1' actual transmission opportunities according to a predetermined mapping method; wherein, the K1' actual transmission opportunities are the transmission opportunities that can perform uplink PUSCH transmission among the K1 nominal transmission opportunities, the K1 nominal transmission opportunities are located in different time slots, the starting symbol positions of the K1 nominal transmission opportunities are the same in each time slot, and the number of continuous symbols in each time slot is the same.

[0023] Optionally, the step of repeatedly transmitting transport blocks on the Physical Uplink Data Channel (PUSCH) at the multiple target transmission times based on the beam indication information corresponding to each of the multiple target transmission times includes:

[0024] The K1' actual transmission opportunities are taken as the plurality of target transmission opportunities;

[0025] Based on the beam indication information corresponding to the K1' actual transmission opportunities, the transport block on the PUSCH is repeatedly transmitted at the K1' actual transmission opportunities.

[0026] Optionally, the terminal maps different beam indication information received by different transmitting and receiving points (TRPs) of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method, including:

[0027] The terminal maps the different beam indication information to K2 nominal transmission opportunities according to a predetermined mapping method; wherein the K2 nominal transmission opportunities are transmission opportunities continuously allocated back-to-back.

[0028] Optionally, the step of repeatedly transmitting transport blocks on the Physical Uplink Data Channel (PUSCH) at the multiple target transmission times based on the beam indication information corresponding to each of the multiple target transmission times includes:

[0029] In response to the K2 nominal transmission opportunities being divided into K2' actual transmission opportunities, and the existence of a first actual transmission opportunity among the K2' actual transmission opportunities, multiple second actual transmission opportunities are designated as the multiple target transmission opportunities; wherein, the first actual transmission opportunity is a transmission opportunity among the K2' actual transmission opportunities where uplink PUSCH transmission is not possible, and the multiple second actual transmission opportunities are multiple transmission opportunities among the K2' actual transmission opportunities where uplink PUSCH transmission is possible;

[0030] Based on the beam indication information corresponding to the plurality of second actual transmission opportunities, the transmission block on the PUSCH is repeatedly transmitted at the plurality of second actual transmission opportunities.

[0031] Optionally, the step of repeatedly transmitting transport blocks on the Physical Uplink Data Channel (PUSCH) or sending only the corresponding demodulation reference signal (DMRS) at the multiple target transmission times, based on the beam indication information corresponding to each of the multiple target transmission times, includes:

[0032] In response to the K2 nominal transmission opportunities being divided into K2' actual transmission opportunities, and the existence of a first actual transmission opportunity among the K2', the K2' actual transmission opportunities are taken as the plurality of target transmission opportunities; wherein, the first actual transmission opportunity is an actual transmission opportunity among the K2' actual transmission opportunities that cannot perform uplink PUSCH transmission;

[0033] Based on the beam indication information corresponding to multiple second actual transmission opportunities, the transmission block on the PUSCH is repeatedly transmitted on the multiple second actual transmission opportunities, and the corresponding demodulation reference signal DMRS is transmitted only individually on the first actual transmission opportunity; wherein, the multiple second actual transmission opportunities are multiple transmission opportunities among the K2' actual transmission opportunities in which uplink PUSCH transmission can be performed.

[0034] Optionally, the terminal maps different beam indication information received by different transmitting and receiving points (TRPs) of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method, including:

[0035] The terminal maps the different beam indication information to K2' actual transmission opportunities according to the mapping method; wherein, the K2' actual transmission opportunities are multiple actual transmission opportunities obtained by dividing the K2 nominal transmission opportunities, and the K2 nominal transmission opportunities are transmission opportunities continuously allocated back to back.

[0036] Optionally, the step of repeatedly transmitting transport blocks on the Physical Uplink Data Channel (PUSCH) at the multiple target transmission times based on the beam indication information corresponding to each of the multiple target transmission times includes:

[0037] In response to determining that a first actual transmission opportunity exists among the K2' actual transmission opportunities, a plurality of second actual transmission opportunities are taken as the plurality of target transmission opportunities; wherein, the first actual transmission opportunity is a transmission opportunity among the K2' actual transmission opportunities where uplink PUSCH transmission cannot be performed, and the plurality of second actual transmission opportunities are a plurality of transmission opportunities among the K2' actual transmission opportunities where uplink PUSCH transmission can be performed.

[0038] Based on the beam indication information corresponding to the plurality of second actual transmission opportunities, the transmission block on the PUSCH is repeatedly transmitted at the plurality of second actual transmission opportunities.

[0039] Optionally, the step of repeatedly transmitting transport blocks on the Physical Uplink Data Channel (PUSCH) or sending only the corresponding demodulation reference signal (DMRS) at the multiple target transmission times, based on the beam indication information corresponding to each of the multiple target transmission times, includes:

[0040] In response to determining that a first actual transmission opportunity exists among the K2' actual transmission opportunities, the K2' actual transmission opportunities are taken as the plurality of target transmission opportunities; wherein, the first actual transmission opportunity is a transmission opportunity among the K2' actual transmission opportunities where uplink PUSCH transmission cannot be performed;

[0041] Based on the beam indication information corresponding to the multiple second actual transmission opportunities, the transmission block on the PUSCH is repeatedly transmitted on the multiple second actual transmission opportunities, and the corresponding demodulation reference signal DMRS is transmitted only on the first actual transmission opportunity; wherein, the multiple second actual transmission opportunities are multiple actual transmission opportunities among the K2' actual transmission opportunities that can perform uplink PUSCH transmission.

[0042] Optionally, the terminal maps different beam indication information received by different transmitting and receiving points (TRPs) of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method, including:

[0043] The terminal maps the different beam indication information to K2” actual transmission opportunities according to the mapping method; wherein, the K2” actual transmission opportunities are the transmission opportunities in K2' actual transmission opportunities that can perform uplink PUSCH transmission; the K2' actual transmission opportunities are the actual transmission opportunities obtained by dividing the K2 nominal transmission opportunities; the K2 nominal transmission opportunities are continuous transmission opportunities allocated back-to-back.

[0044] Optionally, the step of repeatedly transmitting transport blocks on the Physical Uplink Data Channel (PUSCH) at the multiple target transmission times based on the beam indication information corresponding to each of the multiple target transmission times includes:

[0045] The K2” actual transmission opportunities are used as multiple target transmission opportunities;

[0046] Based on the beam indication information corresponding to the K2” actual transmission opportunities, the transmission block on the PUSCH is repeatedly transmitted at the K2” actual transmission opportunities.

[0047] Optionally, the step of repeatedly transmitting transport blocks on the Physical Uplink Data Channel (PUSCH) or sending only the corresponding demodulation reference signal (DMRS) at the multiple target transmission times, based on the beam indication information corresponding to each of the multiple target transmission times, includes:

[0048] The K2' actual transmission opportunities are used as multiple target transmission opportunities;

[0049] Based on the beam indication information corresponding to the K2” actual transmission opportunities, the transmission block on the PUSCH is repeatedly transmitted during the K2” actual transmission opportunities, and the corresponding demodulation reference signal DMRS is transmitted separately during the first actual transmission opportunity; wherein, the first actual transmission opportunity is the transmission opportunity during the K2” actual transmission opportunities where uplink PUSCH transmission cannot be performed.

[0050] Optionally, transmitting only the corresponding demodulation reference signal DMRS at the first actual transmission time includes:

[0051] Based on the beam indication information mapped to the first actual transmission timing, only the corresponding demodulation reference signal DMRS is transmitted individually at the first actual transmission timing; or

[0052] Based on the beam indication information corresponding to the third actual transmission opportunity, after determining the beam indication information corresponding to the first actual transmission opportunity, only the corresponding demodulation reference signal DMRS is transmitted separately on the first actual transmission opportunity; wherein, the third transmission opportunity is the actual transmission opportunity adjacent to the first actual transmission opportunity among the K2' actual transmission opportunities.

[0053] Optionally, the method further includes:

[0054] Obtain the mapping method sent by the base station via the first signaling; or

[0055] The mapping method is determined based on the association information sent by the base station via second signaling, which indicates the mapping method; or

[0056] The mapping method is determined based on predefined settings.

[0057] Optionally, the terminal maps different beam indication information received by different transmitting and receiving points (TRPs) of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method, including any one of the following:

[0058] The different beam indication information is cyclically mapped to the multiple alternative transmission opportunities in a preset order; or

[0059] After repeating the different beam indication information a specified number of times, they are mapped to the multiple alternative transmission opportunities in a preset order; or

[0060] The different beam indication information is mapped to the multiple alternative transmission opportunities on an average basis according to a preset number of PUSCH retransmissions; or

[0061] Based on the pre-determined correspondence between the association information and the different beam indication information, after determining the mapping order corresponding to the different beam indication information indicated by the association information, the different beam indication information is mapped to the multiple alternative transmission opportunities according to the preset order.

[0062] Optionally, the terminal maps different beam indication information received by different transmitting and receiving points (TRPs) of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method, including:

[0063] According to the mapping method, the different beam indication information is mapped to all target transmission opportunities contained in multiple sequentially arranged time slots.

[0064] According to a second aspect of the present disclosure, a channel transmission apparatus is provided, comprising:

[0065] The mapping module is configured so that the terminal maps different beam indication information received by different transmitting and receiving points (TRPs) of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method; wherein, the beam indication information is beam-related information used for uplink data channel (PUSCH) transmission.

[0066] The transmission module is configured to, based on the beam indication information corresponding to multiple target transmission times, repeatedly transmit the transport block on the physical uplink data channel (PUSCH) or send only the corresponding demodulation reference signal (DMRS) at the multiple target transmission times.

[0067] According to a third aspect of the present disclosure, a computer-readable storage medium is provided, the storage medium storing a computer program for performing the channel transmission method described in any of the first aspects above.

[0068] According to a fourth aspect of the present disclosure, a channel transmission apparatus is provided, comprising:

[0069] processor;

[0070] Memory used to store processor-executable instructions;

[0071] The processor is configured to perform the channel transmission method described in any of the first aspects above.

[0072] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0073] In this embodiment, the terminal can map the beam indication information received by different TRPs of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method. Furthermore, the beam indication information corresponding to each of the multiple target transmission opportunities will either repeatedly transmit transport blocks on the Physical Uplink Data Channel (PUSCH) or only send the corresponding demodulation reference signal (DMRS) on those multiple target transmission opportunities. This achieves the goal of enhancing the PUSCH in multi-TRP scenarios and improves the reliability of data transmission.

[0074] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0075] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0076] Figures 1A to 1D This is a schematic diagram illustrating a PUSCH repetitive transmission method according to an exemplary embodiment.

[0077] Figure 2 This is a schematic diagram illustrating a channel transmission scenario according to an exemplary embodiment.

[0078] Figure 3 This is a schematic diagram illustrating a mapping between beam indication information and transmission timing according to an exemplary embodiment.

[0079] Figure 4 This is a schematic diagram illustrating another channel transmission scenario according to an exemplary embodiment.

[0080] Figure 5This is a schematic diagram illustrating another channel transmission scenario according to an exemplary embodiment.

[0081] Figure 6 This is a schematic diagram illustrating another mapping between beam indication information and transmission timing, according to an exemplary embodiment.

[0082] Figure 7 This is a schematic diagram illustrating another channel transmission scenario according to an exemplary embodiment.

[0083] Figure 8 This is a schematic diagram illustrating another mapping between beam indication information and transmission timing, according to an exemplary embodiment.

[0084] Figure 9 This is a schematic diagram illustrating another channel transmission scenario according to an exemplary embodiment.

[0085] Figure 10 This is a schematic diagram illustrating another channel transmission scenario according to an exemplary embodiment.

[0086] Figure 11 This is a schematic diagram illustrating another mapping between beam indication information and transmission timing, according to an exemplary embodiment.

[0087] Figure 12 This is a schematic diagram illustrating another channel transmission scenario according to an exemplary embodiment.

[0088] Figure 13 This is a schematic diagram illustrating another channel transmission scenario according to an exemplary embodiment.

[0089] Figure 14 This is a schematic diagram illustrating another mapping between beam indication information and transmission timing, according to an exemplary embodiment.

[0090] Figure 15 This is a schematic diagram illustrating another channel transmission scenario according to an exemplary embodiment.

[0091] Figure 16 This is a schematic diagram illustrating another channel transmission scenario according to an exemplary embodiment.

[0092] Figure 17 This is a schematic diagram illustrating another mapping between beam indication information and transmission timing, according to an exemplary embodiment.

[0093] Figure 18 This is a block diagram of a channel transmission apparatus according to an exemplary embodiment.

[0094] Figure 19 This is a schematic diagram of a channel transmission apparatus according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0095] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0096] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0097] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0098] Before introducing the channel transmission scheme provided in this disclosure, let's first introduce the two PUSCH enhancement methods in R15 and R16.

[0099] The first enhancement method is the repeating type A transmission method used in R15.

[0100] This repeating type A transmission method is at the slot level, specifically the Slot Aggregation (PUSCH) transmission method. For example... Figure 1A As shown, a PUSCH is transmitted repeatedly over K consecutive repetitions. Figure 1A The value of K is 2. Transmission begins on the Sth symbol of the initial time slot, and each transmission lasts for L symbols. Figure 1A The value of L is 4.

[0101] The key point is that (S+L) does not exceed the time slot boundary. For example, if a time slot includes 14 time symbols, then (S+L) does not exceed 14.

[0102] This repeating type A transmission method is not suitable for services with low latency requirements and high reliability requirements.

[0103] The second enhancement method is the repeating type B transmission method used in R16.

[0104] To accommodate services with low latency and high reliability requirements, Release 16 introduced a PUSCH repetition mode based on mini-slots, also known as repetition type B transmission mode. This mode allows PUSCH repetition to be carried out across time slots, thereby further reducing latency.

[0105] In the time domain, a PUSCH begins transmission on the S-th symbol of the initial time slot, continuously transmitting K transmission opportunities, each occupying L consecutive symbols. For example... Figure 1B As shown.

[0106] Meanwhile, in the repetitive type B transmission mode, (S+L) can cross time slot boundaries. When a transmission opportunity crosses a time slot boundary, the transmission opportunity is re-segmented, corresponding to the actual repetition K'. For example Figure 1C and Figure 1D As shown.

[0107] exist Figure 1C In the middle, the third transmission opportunity, because it crosses the time slot boundary, is further divided into two actual transmission opportunities by the time slot boundary, that is, in Figure 1C In the diagram, the transmission timing K of PUSCH is 4, but the actual transmission timing K' is 5.

[0108] exist Figure 1D In the process, there is only one transmission opportunity. Because this transmission opportunity crosses the time slot boundary, it is further divided into two actual transmission opportunities by the time slot boundary. Figure 1D In the PUSCH, the transmission timing K is 1, but the actual transmission timing K' is 2.

[0109] The base station can use the SFI (Slot Format Indicator) to indicate whether the semi-static Flexible time symbol is a dynamic uplink symbol or a dynamic downlink symbol. Therefore, the semi-static Flexible time symbol may be a usable symbol for PUSCH (i.e., the Flexible time symbol is an uplink signal and can be used for PUSCH transmission) or an unusable symbol (i.e., the Flexible time symbol is a downlink signal and cannot be used for PUSCH transmission). When there are unusable time symbols, they need to be dropped, and PUSCH transmission should be performed on the remaining usable symbols. That is, for the entire transmission, the time slot L×K can represent the size of the time window for PUSCH transmission. If a time symbol in this time window cannot be used for uplink transmission, then that time symbol cannot be used for PUSCH transmission, and the transmission opportunity needs to be dropped, with PUSCH transmission performed on other transmission opportunities.

[0110] The values ​​corresponding to the above-mentioned repetition type A and repetition type B transmission methods are shown in Table 1:

[0111] Table 1

[0112]

[0113]

[0114] The above-mentioned repeat type A and repeat type B transmission methods are suitable for single RTP scenarios and do not support the terminal using multiple TRP technology to repeatedly transmit PUSCH to improve data transmission reliability.

[0115] To address the aforementioned issues, this disclosure provides a channel transmission scheme that enables repeated transmission of PUSCH in multi-TRP scenarios, thereby improving the reliability of data transmission.

[0116] This disclosure provides a channel transmission method that can be used in a terminal, see below. Figure 2 As shown, Figure 2 This is a flowchart illustrating a channel transmission method according to an embodiment, which may include the following steps:

[0117] In step 201, the terminal maps the different beam indication information received by the TRP at different transmitting and receiving points of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method.

[0118] In this embodiment of the disclosure, the beam indication information is beam-related information used for uplink data channel (PUSCH) transmission. The beam indication information may include spatial relation information or UL (UpLink) TCI (Transmission Configuration Indicator) state information.

[0119] In step 202, based on the beam indication information corresponding to the multiple target transmission times, the transport blocks on the physical uplink data channel PUSCH are repeatedly transmitted or the corresponding demodulation reference signal DMRS is sent separately at the multiple target transmission times.

[0120] In the above embodiments, the terminal can map the beam indication information received by different TRPs of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method. Furthermore, the beam indication information corresponding to each of the multiple target transmission opportunities will either repeatedly transmit transport blocks on the Physical Uplink Data Channel (PUSCH) or only send the corresponding demodulation reference signal (DMRS) on those multiple target transmission opportunities. This achieves the goal of enhancing the PUSCH in multi-TRP scenarios and improves the reliability of data transmission.

[0121] In an optional embodiment, corresponding to the above-described repetition type A transmission mode, step 201 can be implemented by mapping different beam indication information to multiple alternative transmission times in the following manner:

[0122] In the first method, the terminal maps the different beam indication information to K1 nominal transmission opportunities according to a predetermined mapping method.

[0123] Among them, the K1 nominal transmission opportunities are located in different time slots, and the starting symbol positions of the K1 nominal transmission opportunities are the same in each time slot, and the number of continuous symbols in each time slot is the same.

[0124] That is, when using the above-mentioned repetition type A transmission method for PUSCH enhancement, different beam indication information can be mapped to K1 nominal transmission opportunities respectively. For example Figure 3 As shown, different TCIs are mapped to four nominal transmission times Rep#1 to Rep#4, with TCI-1 and TCI-2 being different beam indication information.

[0125] Corresponding to this approach, if among the K1 nominal transmission opportunities there is a first transmission opportunity that cannot perform uplink PUSCH transmission, then refer to Figure 4 As shown, Figure 4 It is based on Figure 2The illustrated embodiment shows another channel transmission method flowchart, where step 202 may include:

[0126] In step 202-11, in response to determining that there is a first transmission opportunity among the K1 nominal transmission opportunities, a plurality of second transmission opportunities among the K1 nominal transmission opportunities are used as the plurality of target transmission opportunities.

[0127] In this embodiment of the disclosure, the first transmission opportunity refers to the transmission opportunity in which uplink PUSCH transmission cannot be performed among the K1 nominal transmission opportunities, and the plurality of second transmission opportunities refers to the plurality of transmission opportunities in which uplink PUSCH transmission can be performed among the K1 nominal transmission opportunities.

[0128] The first transmission opportunity can refer to a transmission opportunity in repetitive type A transmission mode where, due to resource allocation, a symbol in that transmission opportunity is configured as a downlink symbol. Alternatively, the first actual transmission opportunity can refer to a transmission opportunity where uplink PUSCH transmission is impossible due to other circumstances. Multiple second transmission opportunities are multiple transmission opportunities in repetitive type A transmission mode where there are no symbol configuration conflicts among the K1 nominal transmission opportunities.

[0129] In this embodiment of the disclosure, if the first transmission opportunity mentioned above exists among the K1 nominal transmission opportunities, then the multiple second transmission opportunities can be used as the multiple target transmission opportunities.

[0130] In steps 202-12, based on the beam indication information corresponding to the plurality of second transmission opportunities, the transport block on the PUSCH is repeatedly transmitted at the plurality of second transmission opportunities.

[0131] In this embodiment of the disclosure, beam-related information, including at least the beam direction, can be determined based on the beam indication information corresponding to the multiple second transmission opportunities, and then the transmission block on the PUSCH can be repeatedly transmitted at the multiple second transmission opportunities.

[0132] For example Figure 3 As shown, if the third nominal transmission opportunity is the first transmission opportunity in which uplink PUSCH transmission cannot be performed, the terminal will repeatedly transmit the transmission block on the PUSCH based on the corresponding beam indication information on the 1st, 2nd and 4th transmission opportunities.

[0133] In the above embodiments, if there is a first transmission opportunity in the K1 nominal transmission opportunities that cannot perform uplink PUSCH transmission, the terminal can repeatedly transmit the transmission block on the PUSCH in multiple second transmission opportunities other than the first transmission opportunity, thereby achieving the purpose of enhancing the PUSCH in the multi-TRP scenario and improving the reliability of data transmission.

[0134] Or, corresponding to method one above, refer to... Figure 5 As shown, Figure 5 It is based on Figure 2 The illustrated embodiment shows another channel transmission method flowchart, where step 202 may include:

[0135] In steps 202-21, in response to determining that a first transmission opportunity exists among the K1 nominal transmission opportunities, the K1 nominal transmission opportunities are used as the plurality of target transmission opportunities.

[0136] In this embodiment of the disclosure, if there is a first transmission opportunity among the K1 nominal transmission opportunities that cannot perform uplink PUSCH transmission, the terminal can still use all K1 nominal transmission opportunities as multiple target transmission opportunities.

[0137] In steps 202-22, based on the beam indication information corresponding to the multiple second transmission opportunities, the transmission block on the PUSCH is repeatedly transmitted at the multiple second transmission opportunities, and at the first transmission opportunity, only the corresponding demodulation reference signal DMRS is transmitted individually.

[0138] In this embodiment of the disclosure, the terminal can repeatedly transmit the transport block on the PUSCH at multiple second transmission times, and at the first transmission time, it can send the corresponding DMRS (Demodulation Reference Signal) only through the first symbol, so that the base station can better perform channel estimation based on the DMRS.

[0139] Similarly, for example Figure 3 As shown, data blocks on the PUSCH can be repeatedly transmitted during the 1st, 2nd, and 4th transmission times, and DMRS can be transmitted during the 3rd transmission time.

[0140] In the above embodiments, if there is a first transmission opportunity among the K1 nominal transmission opportunities where uplink PUSCH transmission cannot be performed, then only DMRS can be transmitted on the first transmission opportunity, and the transport blocks on the PUSCH can be repeatedly transmitted on multiple second transmission opportunities other than the first transmission opportunity. This also achieves the goal of enhancing the PUSCH in multi-TRP scenarios, improving the reliability of data transmission, and enhancing the channel estimation quality.

[0141] In an optional embodiment, for the process of transmitting the corresponding demodulation reference signal DMRS only through the first symbol during the first transmission timing in steps 202-22 above, the following scheme can be adopted:

[0142] In one example, based on the beam indication information mapped to the first transmission timing, only the corresponding demodulation reference signal DMRS can be transmitted at the first transmission timing.

[0143] In this embodiment of the disclosure, since different beam indication information has been mapped to K1 nominal transmission times, and the first transmission time also has corresponding beam indication information, the corresponding demodulation reference signal DMRS can be sent separately on the first transmission time based on the beam indication information mapped to the first transmission time.

[0144] In another example, after determining the beam indication information corresponding to the first transmission timing based on the beam indication information corresponding to the third transmission timing, only the corresponding demodulation reference signal DMRS is transmitted separately on the first transmission timing.

[0145] In this embodiment of the disclosure, the third transmission opportunity is the transmission opportunity adjacent to the first transmission opportunity among the K1 nominal transmission opportunities. The third transmission opportunity can be a transmission opportunity preceding or following the first transmission opportunity. The beam indication information corresponding to the first transmission opportunity can be the same as or different from the beam indication information corresponding to the third transmission opportunity, and this disclosure does not limit this.

[0146] After determining the beam indication information corresponding to the first transmission timing based on the beam indication information corresponding to the third transmission timing, the corresponding demodulation reference signal DMRS is transmitted separately on the first transmission timing according to the beam indication information corresponding to the first transmission timing.

[0147] In the above embodiments, the goal of sending only the corresponding demodulation reference signal DMRS when uplink PUSCH transmission is not possible in the first transmission opportunity is achieved, which improves the channel estimation quality and has high availability.

[0148] In an optional embodiment, corresponding to the above-described repetition type A transmission mode, step 201 can also be implemented by mapping different beam indication information to multiple alternative transmission times in the following manner:

[0149] In the second method, the terminal maps the different beam indication information to K1' actual transmission opportunities according to a predetermined mapping method.

[0150] In this embodiment of the disclosure, K1' actual transmission opportunities are transmission opportunities among K1 nominal transmission opportunities that can perform uplink PUSCH transmission. The K1 nominal transmission opportunities are located in different time slots. The starting symbol positions of the K1 nominal transmission opportunities are the same in each time slot, and the number of continuous symbols in each time slot is the same.

[0151] Figure 3 The 1st, 2nd, and 4th transmission opportunities can be used as K1' actual transmission opportunities, and their mapping method can be, for example... Figure 6 As shown.

[0152] Corresponding to the second method above, refer to Figure 7 As shown, Figure 7 It is based on Figure 2 The illustrated embodiment shows another channel transmission method flowchart, where step 202 may include:

[0153] In steps 202-31, the K1' actual transmission opportunities are used as the plurality of target transmission opportunities.

[0154] In this embodiment of the disclosure, K1' actual transmission opportunities can be directly used as the plurality of target transmission opportunities.

[0155] In steps 202-31, based on the beam indication information corresponding to the K1' actual transmission opportunities, the transport block on the PUSCH is repeatedly transmitted at the K1' actual transmission opportunities.

[0156] In the above embodiments, different beam pointing directions can be directly mapped to K1' actual transmission opportunities, and these K1' actual transmission opportunities can be used as multiple target transmission opportunities to repeatedly transmit the transport blocks on the PUSCH. This achieves the goal of enhancing the PUSCH in multi-TRP scenarios and improves the reliability of data transmission.

[0157] In an optional embodiment, corresponding to the above-described repetitive type B transmission mode, step 201 can be performed by mapping different beam indication information to multiple alternative transmission times in the following manner:

[0158] In the third method, the terminal maps the different beam indication information to K2 nominal transmission opportunities according to a predetermined mapping method.

[0159] Among them, the K2 nominal transmission opportunities are transmission opportunities allocated back-to-back consecutively, and their mapping method is as follows: Figure 8 As shown.

[0160] Corresponding to the third method mentioned above, refer to Figure 9 As shown, Figure 9 It is based on Figure 2 The illustrated embodiment shows another channel transmission method flowchart, where step 202 may include:

[0161] In steps 202-41, in response to the K2 nominal transmission opportunities being divided into K2' actual transmission opportunities, and the existence of a first actual transmission opportunity among the K2' actual transmission opportunities, multiple second actual transmission opportunities are used as the multiple target transmission opportunities.

[0162] In this embodiment of the disclosure, since the K2 nominal transmission opportunities can span time slots, there may be K2' actual transmission opportunities divided by time slot boundaries. Alternatively, a nominal transmission opportunity may be divided into two actual transmission opportunities by the downlink symbols it includes. For example, if the d-th symbol in the m-th nominal transmission opportunity of the K2 nominal transmission opportunities is configured as a downlink symbol, then the symbols before the d-th symbol belong to one actual transmission opportunity, and the symbols after the d-th symbol belong to another actual transmission opportunity.

[0163] Wherein, the first actual transmission opportunity is the transmission opportunity among the above K2' actual transmission opportunities where uplink PUSCH transmission cannot be performed, and the plurality of second actual transmission opportunities are the plurality of transmission opportunities among the above K2' actual transmission opportunities where uplink PUSCH transmission can be performed.

[0164] It should be noted that the first actual transmission opportunity can refer to one of the K2' actual transmission opportunities where uplink PUSCH transmission is impossible because any symbol is configured as a downlink symbol. Alternatively, the first actual transmission opportunity can refer to one of the K2' actual transmission opportunities where the number of symbols included after being divided (by time slots or downlink signals) is too small, resulting in an excessively high effective coding rate, making it impossible for the base station to successfully decode the information sent during that transmission opportunity, even if it receives it. The first actual transmission opportunity can also refer to a transmission opportunity where uplink PUSCH transmission is impossible due to other circumstances. Multiple second actual transmission opportunities, on the other hand, are multiple transmission opportunities where uplink PUSCH transmission is possible.

[0165] In this embodiment of the disclosure, multiple second actual transmission times can be used as the multiple target transmission times.

[0166] In steps 202-42, based on the beam indication information corresponding to the plurality of second actual transmission opportunities, the transport block on the PUSCH is repeatedly transmitted at the plurality of second actual transmission opportunities.

[0167] For example Figure 8 As shown, if Rep#4-1 is the first actual transmission opportunity where uplink PUSCH transmission cannot be performed, then the terminal can repeatedly transmit the transmission block on the PUSCH on Rep#1, Rep#2, Rep#3 and Rep#4-2 according to the beam indication information TCI-1, TCI-2, TCI-1 and TCI-2 respectively.

[0168] In the above embodiments, if there is a first actual transmission opportunity among the K2' actual transmission opportunities where uplink PUSCH transmission cannot be performed, the transport block on the PUSCH can be repeatedly transmitted only on multiple second actual transmission opportunities. This achieves the goal of enhancing the PUSCH in multi-TRP scenarios and improves the reliability of data transmission.

[0169] Or, corresponding to the third method mentioned above, refer to... Figure 10 As shown, Figure 10 It is based on Figure 2 The illustrated embodiment shows another channel transmission method flowchart, where step 202 may include:

[0170] In steps 202-51, in response to the K2 nominal transmission opportunities being divided into K2' actual transmission opportunities, and the existence of a first actual transmission opportunity among the K2', the K2' actual transmission opportunities are used as the plurality of target transmission opportunities.

[0171] In this embodiment of the disclosure, if K2 nominal transmission opportunities are divided into K2' actual transmission opportunities, and there is a first actual transmission opportunity in K2' that cannot perform uplink PUSCH transmission, then K2' actual transmission opportunities can still be used as the plurality of target transmission opportunities.

[0172] In steps 202-52, based on the beam indication information corresponding to the multiple second actual transmission opportunities, the transmission block on the PUSCH is repeatedly transmitted at the multiple second actual transmission opportunities, and at the first actual transmission opportunity, the corresponding demodulation reference signal DMRS is transmitted only individually.

[0173] In this embodiment of the disclosure, the plurality of second actual transmission opportunities are multiple transmission opportunities among the K2' actual transmission opportunities in which uplink PUSCH transmission can be performed.

[0174] Similarly, for example Figure 8 As shown, the terminal can use the corresponding beam indication information on Rep#1, Rep#2, Rep#3 and Rep#4-2 to repeatedly transmit the transport block on PUSCH, and send the corresponding demodulation reference signal DMRS separately on Rep#4-1.

[0175] In the above embodiments, the transport blocks on the PUSCH can be repeatedly transmitted at multiple second actual transmission times, and at the first actual transmission time, only the corresponding demodulation reference signal DMRS is transmitted separately. This achieves the purpose of enhancing the PUSCH in multi-TRP scenarios, improving the reliability of data transmission, and improving the channel estimation quality.

[0176] In an optional embodiment, corresponding to the above-described repetitive type B transmission mode, step 201 can be performed by mapping different beam indication information to multiple alternative transmission times in the following manner:

[0177] The fourth method involves the terminal mapping the different beam indication information to K2' actual transmission opportunities according to a predetermined mapping method.

[0178] Here, K2' actual transmission opportunities are multiple actual transmission opportunities obtained by dividing K2 nominal transmission opportunities, and the K2 nominal transmission opportunities are transmission opportunities allocated back-to-back consecutively. This mapping method is, for example... Figure 11 As shown.

[0179] Corresponding to the fourth method above, refer to Figure 12 As shown, Figure 12 It is based on Figure 2 The illustrated embodiment shows another channel transmission method flowchart, where step 202 may include:

[0180] In steps 202-61, in response to determining that a first actual transmission opportunity exists among the K2' actual transmission opportunities, a plurality of second actual transmission opportunities are used as the plurality of target transmission opportunities.

[0181] In this embodiment of the disclosure, the first actual transmission opportunity is a transmission opportunity among the K2' actual transmission opportunities where uplink PUSCH transmission is not possible, and the plurality of second actual transmission opportunities are plurality of transmission opportunities among the K2' actual transmission opportunities where uplink PUSCH transmission is possible. In this embodiment of the disclosure, the plurality of second actual transmission opportunities are directly used as the plurality of target transmission opportunities.

[0182] In steps 202-62, based on the beam indication information corresponding to the plurality of second actual transmission opportunities, the transport block on the PUSCH is repeatedly transmitted at the plurality of second actual transmission opportunities.

[0183] For example Figure 11 As shown, the terminal can repeatedly transmit the transport block on PUSCH on Rep#1, Rep#2, Rep#3 and Rep#4-2 according to the beam indication information TCI-1, TCI-2, TCI-1 and TCI-1 respectively.

[0184] In the above embodiments, when different beam indication information is mapped to K2' actual transmission opportunities, if it is determined that there is a first actual transmission opportunity among the K2' actual transmission opportunities where uplink PUSCH transmission is not possible, the transport block on the PUSCH can be repeatedly transmitted during multiple second actual transmission opportunities where uplink PUSCH transmission is possible. This achieves the purpose of enhancing the PUSCH in multi-TRP scenarios and improves the reliability of data transmission.

[0185] Corresponding to the fourth method above, refer to Figure 13 As shown, Figure 13 It is based on Figure 2 The illustrated embodiment shows another channel transmission method flowchart, where step 202 may include:

[0186] In steps 202-71, in response to determining that a first actual transmission opportunity exists among the K2' actual transmission opportunities, the K2' actual transmission opportunities are used as the plurality of target transmission opportunities.

[0187] In this embodiment of the disclosure, even if there is a first actual transmission opportunity among the K2' actual transmission opportunities that cannot perform uplink PUSCH transmission, the K2' actual transmission opportunities can still be used as the plurality of target transmission opportunities.

[0188] In steps 202-72, based on the beam indication information corresponding to the multiple second actual transmission opportunities, the transmission block on the PUSCH is repeatedly transmitted at the multiple second actual transmission opportunities, and at the first actual transmission opportunity, the corresponding demodulation reference signal DMRS is transmitted only individually.

[0189] Among them, the multiple second actual transmission opportunities are multiple transmission opportunities in the K2' actual transmission opportunities in which uplink PUSCH transmission can be performed.

[0190] For example Figure 11 As shown, the terminal can repeatedly transmit the transport block on PUSCH on Rep#1, Rep#2, Rep#3 and Rep#4-2 according to the beam indication information TCI-1, TCI-2, TCI-1 and TCI-1, and only transmit the corresponding demodulation reference signal DMRS on Rep#4-1.

[0191] In the above embodiments, while achieving the goal of enhancing PUSCH in multi-TRP scenarios and improving the reliability of data transmission, the channel estimation quality is also improved.

[0192] In an optional embodiment, corresponding to the above-described repetitive type B transmission mode, step 201 can be performed by mapping different beam indication information to multiple alternative transmission times in the following manner:

[0193] In the fifth method, the terminal maps the different beam indication information to K2” actual transmission opportunities according to the mapping method.

[0194] Here, the K2” actual transmission opportunities are the transmission opportunities among the K2' actual transmission opportunities that can perform uplink PUSCH transmission; the K2' actual transmission opportunities are the actual transmission opportunities obtained by dividing the K2 nominal transmission opportunities; the K2 nominal transmission opportunities are consecutive transmission opportunities allocated back-to-back. The mapping method is as follows: Figure 14 As shown.

[0195] Corresponding to the fifth method above, refer to Figure 15 As shown, Figure 15 It is based on Figure 2 The illustrated embodiment shows another channel transmission method flowchart, where step 202 may include:

[0196] In steps 202-81, the K2” actual transmission opportunities are used as multiple target transmission opportunities.

[0197] In steps 202-82, based on the beam indication information corresponding to the K2” actual transmission opportunities, the transmission block on the PUSCH is repeatedly transmitted at the K2” actual transmission opportunities.

[0198] For example Figure 14 As shown, the terminal repeatedly transmits the transport blocks on the PUSCH on Rep#1, Rep#2, Rep#3 and Rep#4-2 according to the beam indication information TCI-1, TCI-2, TCI-1 and TCI-2.

[0199] The above embodiments achieve the goal of enhancing PUSCH in multi-TRP scenarios and improving the reliability of data transmission.

[0200] Or, corresponding to the fifth method mentioned above, refer to... Figure 16 As shown, Figure 16 It is based on Figure 2 The illustrated embodiment shows another channel transmission method flowchart, where step 202 may include:

[0201] In steps 202-91, the K2' actual transmission opportunities are used as multiple target transmission opportunities.

[0202] In steps 202-92, based on the beam indication information corresponding to the K2” actual transmission opportunities, the transmission block on the PUSCH is repeatedly transmitted at the K2” actual transmission opportunities, and the corresponding demodulation reference signal DMRS is transmitted separately at the first actual transmission opportunity.

[0203] For example Figure 14 As shown, the terminal repeatedly transmits the transport block on PUSCH on Rep#1, Rep#2, Rep#3 and Rep#4-2 according to the beam indication information TCI-1, TCI-2, TCI-1, TCI-2, and on Rep#4-1, it only transmits the corresponding demodulation reference signal DMRS separately.

[0204] In the above embodiments, while achieving the goal of enhancing PUSCH in multi-TRP scenarios and improving the reliability of data transmission, the channel estimation quality is also improved.

[0205] In an optional embodiment, for the third, fourth and fifth methods described above, the process of sending only the corresponding demodulation reference signal DMRS at the first actual transmission time can adopt the following scheme.

[0206] In one example, based on the beam indication information mapped to the first actual transmission timing, only the corresponding demodulation reference signal DMRS can be transmitted separately at the first actual transmission timing.

[0207] If there is corresponding beam indication information for the first actual transmission time, then according to the beam indication information mapped to the first actual transmission time, only the corresponding demodulation reference signal DMRS needs to be transmitted separately at the first actual transmission time.

[0208] In another example, after determining the beam indication information corresponding to the first actual transmission time based on the beam indication information corresponding to the third actual transmission time, only the corresponding demodulation reference signal DMRS is transmitted separately at the first actual transmission time.

[0209] The third actual transmission opportunity is the K2' actual transmission opportunity that is adjacent to the first actual transmission opportunity. For example, the third actual transmission opportunity can be the transmission opportunity preceding or following the first actual transmission opportunity. The beam indication information corresponding to the first actual transmission opportunity can be the same as or different from the beam indication information corresponding to the third actual transmission opportunity.

[0210] In the above embodiments, the goal of sending only the corresponding demodulation reference signal DMRS during the first actual transmission opportunity when uplink PUSCH transmission is not possible is achieved, thereby improving channel estimation quality and increasing availability.

[0211] In an optional embodiment, the above mapping method can be configured by the base station through a first signaling, wherein the first signaling may include, but is not limited to, higher-layer RRC (Radio Resource Control) signaling or MAC (Media Access Control Address) signaling.

[0212] In another example, the base station can configure association information corresponding to the mapping method through a second signaling. This second signaling can be the same as or different from the first signaling.

[0213] In another example, the mapping method can be set directly in the protocol.

[0214] Specifically, step 201 may include any of the following:

[0215] The first method involves cyclically mapping the different beam indication information to the multiple alternative transmission opportunities in a preset order.

[0216] The terminal, according to the mapping method, cyclically maps the different beam indication information to K1 nominal transmission opportunities in a preset order. The resulting mapping is as follows: Figure 3 As shown. If a first transmission opportunity exists, the terminal can repeatedly transmit the data blocks on PUSCH on Rep#1, Rep#2, and Rep#4 according to the information indicated by TCI-1, TCI-2, and TCI-2, respectively.

[0217] Alternatively, the terminal may use a mapping method to cyclically map the different beam indication information to K1' nominal transmission opportunities in a preset order, resulting in a mapping result such as... Figure 6 As shown, the terminal can repeatedly transmit data blocks on the PUSCH on Rep#1, Rep#2, and Rep#4 according to the information indicated by TCI-1, TCI-2, and TCI-1, respectively.

[0218] The second method involves repeating the different beam indication information a specified number of times and then mapping it to the multiple alternative transmission opportunities in a preset order.

[0219] For example, if the specified number of times is 2, then TCI1 can be repeated twice and TCI2 can be repeated twice before mapping. The terminal can repeatedly transmit the data blocks on PUSCH on Rep#1, Rep#2, Rep#3 and Rep#4 according to the information indicated by TCI-1, TCI-1, TCI-2 and TCI-2 respectively.

[0220] In this method, if there is a first transmission opportunity among the K1 nominal transmission opportunities, it can be processed in accordance with the cyclic mapping method of the first method, which will not be elaborated here.

[0221] The third method involves mapping the different beam indication information to the multiple alternative transmission opportunities on an average basis according to a preset number of PUSCH retransmissions.

[0222] For example, if the preset PUSCH retransmission count is 8, the terminal can retransmit the data block on the PUSCH according to the information indicated by TCI-1 during the first 4 transmission opportunities. During the last 4 transmission opportunities, the terminal can retransmit the data block on the PUSCH according to the information indicated by TCI-1.

[0223] In this method, if there is a first transmission opportunity among the K1 nominal transmission opportunities, it can be processed in accordance with the cyclic mapping method of the first method, which will not be elaborated here.

[0224] The fourth method involves determining the mapping order of the different beam indication information indicated by the association information based on the pre-determined correspondence between the association information and the different beam indication information, and then mapping the different beam indication information to the multiple alternative transmission opportunities according to the preset order.

[0225] In one example, the associated information can be represented using a bitmap.

[0226] For example, when K1=4, the associated information includes 1001. Assuming the above correspondence is 1 corresponds to TCI2 and 0 corresponds to TCI1, the mapping order is TCI2, TCI1, TCI1, TCI2. The terminal can repeatedly transmit data blocks on PUSCH on Rep#1, Rep#2, Rep#3, and Rep#4 according to the information indicated by TCI-2, TCI-1, TCI-1, and TCI-2, respectively.

[0227] In this method, if there is a first transmission opportunity among the K1 nominal transmission opportunities, it can be processed in accordance with the cyclic mapping method of the first method, which will not be elaborated here.

[0228] The first to fourth methods mentioned above can also be applied to the repeating type B transmission method, which will not be elaborated further.

[0229] In an optional embodiment, step 201 may further include:

[0230] In the fifth method, the terminal maps the different beam indication information to all target transmission time slots included in a plurality of sequentially arranged time slots according to the mapping method.

[0231] In this approach, the transmission timing is not distinguished; instead, mapping is performed based on time slots. For example, for repetitive type B transmission, the mapping method is as follows: Figure 17 As shown, the terminal can repeatedly transmit data blocks on PUSCH on Rep#1, Rep#2, Rep#3, and Rep#4-2 according to the information indicated by TCI-1, TCI-2, TCI-2, and TCI-1, respectively.

[0232] In the above embodiments, the purpose of enhancing PUSCH in multi-TRP scenarios is achieved, thereby improving the reliability of data transmission.

[0233] Corresponding to the aforementioned embodiments of the application function implementation method, this disclosure also provides embodiments of the application function implementation apparatus.

[0234] Reference Figure 18 , Figure 18 This is a block diagram of a channel transmission apparatus according to an exemplary embodiment, comprising:

[0235] The mapping module 310 is configured to map different beam indication information received by different transmitting and receiving points (TRPs) of the corresponding base station to multiple alternative transmission opportunities according to a predetermined mapping method; wherein, the beam indication information is beam-related information used for uplink data channel (PUSCH) transmission.

[0236] The transmission module 320 is configured to, based on the beam indication information corresponding to multiple target transmission times, repeatedly transmit the transport block on the physical uplink data channel PUSCH or send only the corresponding demodulation reference signal DMRS at the multiple target transmission times.

[0237] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this disclosure according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0238] Accordingly, this disclosure also provides a computer-readable storage medium storing a computer program for executing any of the channel transmission methods described above.

[0239] Accordingly, this disclosure also provides a channel transmission apparatus, comprising:

[0240] processor;

[0241] Memory used to store processor-executable instructions;

[0242] The processor is configured to execute any of the channel transmission methods described above.

[0243] Figure 19 This is a block diagram illustrating an electronic device 1900 according to an exemplary embodiment. For example, the electronic device 1900 may be a mobile phone, tablet computer, e-book reader, multimedia playback device, wearable device, in-vehicle terminal, iPad, smart TV, or other terminal.

[0244] Reference Figure 19 The electronic device 1900 may include one or more of the following components: processing component 1902, memory 1904, power supply component 1906, multimedia component 1908, audio component 1910, input / output (I / O) interface 1912, sensor component 1916, and communication component 1918.

[0245] Processing component 1902 typically controls the overall operation of electronic device 1900, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1902 may include one or more processors 1920 to execute instructions to complete all or part of the steps of the channel transmission method described above. Furthermore, processing component 1902 may include one or more modules to facilitate interaction between processing component 1902 and other components. For example, processing component 1902 may include a multimedia module to facilitate interaction between multimedia component 1908 and processing component 1902. Alternatively, processing component 1902 may read executable instructions from memory to implement the steps of a channel transmission method provided in the above embodiments.

[0246] Memory 1904 is configured to store various types of data to support the operation of electronic device 1900. Examples of this data include instructions for any application or method operating on electronic device 1900, contact data, phone book data, messages, pictures, videos, etc. Memory 1904 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0247] Power supply component 1906 provides power to various components of electronic device 1900. Power supply component 1906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1900.

[0248] The multimedia component 1908 includes a display screen that provides an output interface between the electronic device 1900 and the user. In some embodiments, the multimedia component 1908 includes a front-facing camera and / or a rear-facing camera. When the electronic device 1900 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera can receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0249] Audio component 1910 is configured to output and / or input audio signals. For example, audio component 1910 includes a microphone (MIC) configured to receive external audio signals when electronic device 1900 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1904 or transmitted via communication component 1918. In some embodiments, audio component 1910 also includes a speaker for outputting audio signals.

[0250] I / O interface 1912 provides an interface between processing component 1902 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0251] Sensor assembly 1916 includes one or more sensors for providing state assessments of various aspects of electronic device 1900. For example, sensor assembly 1916 can detect the on / off state of electronic device 1900, the relative positioning of components such as the display and keypad of electronic device 1900, changes in position of electronic device 1900 or a component of electronic device 1900, the presence or absence of user contact with electronic device 1900, the orientation or acceleration / deceleration of electronic device 1900, and temperature changes of electronic device 1900. Sensor assembly 1916 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1916 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1916 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0252] Communication component 1918 is configured to facilitate wired or wireless communication between electronic device 1900 and other devices. Electronic device 1900 can access wireless networks based on communication standards, such as Wi-Fi, 2G, 3G, 4G, 19G, or 6G, or combinations thereof. In one exemplary embodiment, communication component 1918 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1918 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0253] In an exemplary embodiment, the electronic device 1900 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the channel transmission method described above.

[0254] In an exemplary embodiment, a non-transitory machine-readable storage medium including instructions is also provided, such as a memory 1904 including instructions, which can be executed by a processor 1920 of an electronic device 1900 to complete the wireless charging method described above. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0255] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0256] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A method of channel transmission, characterized by, Comprise: The terminal maps different beam indication information corresponding to different transmission and reception points (TRP) of the base station to multiple candidate transmission occasions according to a predetermined mapping manner; wherein, the beam indication information is beam-related information for uplink data channel (PUSCH) transmission; Based on the beam indication information corresponding to the multiple target transmission occasions respectively, repeatedly transmit the transport block on the physical uplink data channel (PUSCH) on the multiple target transmission occasions; The terminal maps different beam indication information corresponding to different transmission and reception points (TRP) of the base station to multiple candidate transmission occasions according to a predetermined mapping manner, comprising: The terminal maps the different beam indication information to K2' actual transmission occasions according to the mapping manner; wherein, the K2' actual transmission occasions are a plurality of actual transmission occasions obtained by dividing K2 nominal transmission occasions, and the K2 nominal transmission occasions are back-to-back continuous allocated transmission occasions; wherein, the K2' actual transmission occasions include a first actual transmission occasion and a plurality of second actual transmission occasions, the first actual transmission occasion is an actual transmission occasion that cannot perform uplink PUSCH transmission in the K2' actual transmission occasions, and the plurality of second actual transmission occasions are a plurality of transmission occasions that perform uplink PUSCH transmission in the K2' actual transmission occasions; The repeatedly transmitting the transport block on the physical uplink data channel (PUSCH) on the multiple target transmission occasions based on the beam indication information corresponding to the multiple target transmission occasions respectively, comprises: Taking the plurality of second actual transmission occasions as the multiple target transmission occasions; Based on the beam indication information corresponding to the plurality of second actual transmission occasions, repeatedly transmit the transport block on the PUSCH on the plurality of second actual transmission occasions.

2. The method of claim 1, wherein, The repeatedly transmitting the transport block on the physical uplink data channel (PUSCH) on the multiple target transmission occasions based on the beam indication information corresponding to the multiple target transmission occasions respectively, or only transmitting corresponding demodulation reference signals (DMRS) alone, comprises: Taking the K2' actual transmission occasions as the multiple target transmission occasions; Based on the beam indication information corresponding to the plurality of second actual transmission occasions respectively, repeatedly transmit the transport block on the PUSCH on the plurality of second actual transmission occasions, and only transmit corresponding demodulation reference signals (DMRS) alone on the first actual transmission occasion.

3. The method of claim 2, wherein, The only transmitting corresponding demodulation reference signals (DMRS) alone on the first actual transmission occasion, comprises: According to the beam indication information mapped to the first actual transmission occasion, only transmit corresponding demodulation reference signals (DMRS) alone on the first actual transmission occasion; or determining the beam indication information corresponding to the first actual transmission occasion according to the beam indication information corresponding to a third actual transmission occasion, and transmitting only a corresponding demodulation reference signal (DMRS) on the first actual transmission occasion; wherein the third actual transmission occasion is an actual transmission occasion adjacent to the first actual transmission occasion among the K2' actual transmission occasions.

4. The method of claim 1, wherein, The method further includes: obtaining the mapping manner sent by the base station through first signaling; or determining the mapping manner according to association information sent by the base station through second signaling and used for indicating the mapping manner; or determining the mapping manner according to a predefined setting.

5. The method of claim 4, wherein, The terminal maps different beam indication information corresponding to different transmission and reception points (TRPs) of a base station to a plurality of candidate transmission occasions according to a predetermined mapping manner, including any of the following: mapping the different beam indication information to the plurality of candidate transmission occasions in a preset order cyclically; or mapping the different beam indication information to the plurality of candidate transmission occasions in a preset order after repeating the different beam indication information a specified number of times; or mapping the different beam indication information to the plurality of candidate transmission occasions averagely according to a preset PUSCH repetition transmission number; or determining a mapping order corresponding to different beam indication information indicated by association information according to a predetermined correspondence between the association information and the different beam indication information, and mapping the different beam indication information to the plurality of candidate transmission occasions in the preset order.

6. The method of claim 1, wherein, The terminal maps different beam indication information corresponding to different transmission and reception points (TRPs) of a base station to a plurality of candidate transmission occasions according to a predetermined mapping manner, including: The terminal maps the different beam indication information to all target transmission occasions contained in a plurality of sequentially arranged time slots according to the mapping manner.

7. A channel transmission device, characterized by comprising: including: a mapping module configured to map different beam indication information corresponding to different transmission and reception points (TRPs) of a base station to a plurality of candidate transmission occasions according to a predetermined mapping manner; wherein the beam indication information is beam-related information used for uplink data channel (PUSCH) transmission; a transmission module configured to repeatedly transmit a transport block on a physical uplink data channel (PUSCH) on a plurality of target transmission occasions based on the beam indication information corresponding to the target transmission occasions, respectively; the mapping module is further configured to: The terminal maps the different beam indication information to K2' actual transmission occasions respectively according to the mapping manner; wherein the K2' actual transmission occasions are a plurality of actual transmission occasions obtained by dividing the K2 nominal transmission occasions, and the K2 nominal transmission occasions are transmission occasions allocated in a back-to-back manner; wherein the K2' actual transmission occasions include a first actual transmission occasion and a plurality of second actual transmission occasions, the first actual transmission occasion is an actual transmission occasion in the K2' actual transmission occasions that cannot perform uplink PUSCH transmission, and the plurality of second actual transmission occasions are a plurality of transmission occasions in the K2' actual transmission occasions that perform uplink PUSCH transmission; The transmission module is further configured to: take the plurality of second actual transmission occasions as the plurality of target transmission occasions; repeatedly transmit the transmission block on the PUSCH on the plurality of second actual transmission occasions based on the beam indication information corresponding to the plurality of second actual transmission occasions.

8. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, and the computer program is used to execute the channel transmission method in any one of claims 1-6.

9. A channel transmission device, characterized by comprising: comprise: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute the channel transmission method in any one of claims 1-6.

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