Method, apparatus, device, medium and program product for uplink transmission

Abstract

The present disclosure discloses a method, device, equipment, medium and program product for uplink transmission, which belongs to the field of communication. The method comprises: a terminal performing repeated transmission on at least one uplink channel in at least two uplink channels at at least two time domain positions, and performing multi-panel simultaneous transmission on the at least two uplink channels at at least one time domain position of the at least two time domain positions; the at least two uplink channels correspond to at least two beam information one by one. The method supports the repeated transmission of the uplink channel in the time domain while supporting the multi-panel simultaneous transmission.

Description

Technical Field

[0001] This disclosure relates to the field of communications, and in particular to a method, apparatus, device, medium, and program product for uplink transmission. Background Technology

[0002] To ensure transmission reliability and throughput, related technologies provide simultaneous transmission across multiple panels (STxMP) to multiple transmission and reception points (TRPs) on the terminal.

[0003] In the enhanced research on simultaneous transmission across multiple panels, transmission schemes supporting uplink space division multiplexing (SDM) and single frequency network (SFN) space division multiplexing are based on scheduling the uplink physical shared channel (PUSCH) using a single downlink control information (S-DCI), and a transmission scheme supporting SFN is based on scheduling the uplink physical control channel (PUCCH) using S-DCI. Summary of the Invention

[0004] This disclosure provides an uplink transmission method, apparatus, device, medium, and program product that supports simultaneous transmission from multiple panels and also supports repeated transmission of the uplink channel in the time domain. The technical solution is as follows.

[0005] According to one aspect of the present disclosure, a method for uplink transmission is provided, the method being performed by a terminal, the method comprising:

[0006] At least two time-domain locations, at least one of the at least two uplink channels is repeatedly transmitted, and at least two time-domain locations, the at least two uplink channels are simultaneously transmitted across multiple panels.

[0007] The at least two uplink channels correspond one-to-one with at least two beam information, wherein the beam information is at least one of the antenna panel, TRP, and beam.

[0008] According to another aspect of the present disclosure, an uplink transmission apparatus is provided, the apparatus comprising:

[0009] The transmitting module is configured to repeatedly transmit at least one of at least two uplink channels at at least two time-domain locations, and to simultaneously transmit the at least two uplink channels across multiple panels at at least one of the at least two time-domain locations; the at least two uplink channels correspond one-to-one with at least two beam information, the beam information being at least one of an antenna panel, a TRP, and a beam.

[0010] According to another aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0011] processor;

[0012] A transceiver connected to the processor;

[0013] The processor is configured to load and execute executable instructions to implement the uplink transmission method described above.

[0014] According to another aspect of the present disclosure, a chip is provided, the chip including programmable logic circuitry and / or program instructions, which, when the chip is running, are used to implement the uplink transmission methods as described in the various aspects above.

[0015] According to another aspect of the present disclosure, a computer-readable storage medium is provided that stores at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the uplink transmission method as described in the above aspects.

[0016] According to another aspect of the present disclosure, a computer program product or computer program is provided, the computer program product or computer program including computer instructions stored in a computer-readable storage medium; a processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the uplink transmission method as described in the above aspects.

[0017] The technical solutions provided in this disclosure may have the following beneficial effects:

[0018] The uplink transmission method provided in this application transmits at least two associated uplink channels at at least two time-domain locations using at least two beam information, achieving simultaneous transmission of uplink channels across multiple panels. Furthermore, at each of the at least two time-domain locations, at least one of the at least two uplink channels is transmitted, achieving repeated transmission of the aforementioned uplink channels. This method supports a transmission scheme for simultaneous transmission across multiple panels, and further supports repeated transmission of the same uplink channel in the time domain, realizing a hybrid transmission scheme of simultaneous transmission across multiple panels and repeated transmission. This supports better reliability and uplink coverage performance, and under reasonable system scheduling, it can also enhance uplink throughput. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a communication system provided according to an exemplary embodiment;

[0021] Figure 2 This is a schematic diagram of a communication system provided according to another exemplary embodiment;

[0022] Figure 3 This is a schematic diagram of a communication system provided according to another exemplary embodiment;

[0023] Figure 4 This is a schematic diagram of an uplink transmission process provided according to an exemplary embodiment;

[0024] Figure 5 This is a schematic diagram of an uplink transmission process provided according to another exemplary embodiment;

[0025] Figure 6 This is a flowchart of an uplink transmission method provided according to an exemplary embodiment;

[0026] Figure 7 This is a flowchart of an uplink transmission method provided according to another exemplary embodiment;

[0027] Figure 8 This is a schematic diagram of a repetitive transmission type according to an exemplary embodiment;

[0028] Figure 9 This is a schematic diagram of a repetitive transmission type provided according to another exemplary embodiment;

[0029] Figure 10 This is a schematic diagram of a repetitive transmission type provided according to another exemplary embodiment;

[0030] Figure 11 This is a schematic diagram of a repetitive transmission type provided according to another exemplary embodiment;

[0031] Figure 12 This is a schematic diagram of a repetitive transmission type provided according to another exemplary embodiment;

[0032] Figure 13 This is a block diagram of an uplink transmission apparatus provided according to an exemplary embodiment;

[0033] Figure 14 This is a schematic diagram of the structure of a terminal provided according to an exemplary embodiment;

[0034] Figure 15 This is a schematic diagram of the structure of a network device provided according to an exemplary embodiment. Detailed Implementation

[0035] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. Unless otherwise indicated, the same numbers in different drawings denote the same or similar elements in the following description relating to the drawings. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this disclosure, unless otherwise stated, " / " means "or," for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist, for example, A and / or B can represent: A alone, A and B simultaneously, and B alone.

[0036] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application 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.

[0037] It should be understood that although the terms first, second, third, etc., may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, 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, for example, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0038] Figure 1 A schematic diagram of a communication system provided by an exemplary embodiment of the present disclosure is shown. The communication system may include: a network device 12 and a terminal 14. The network device 12 includes TRP1 and TRP2.

[0039] Network device 12 can be a base station, which is a device that provides wireless communication functionality to terminal 14. Base stations can include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems employing different wireless access technologies, the name of the device with base station functionality may differ; for example, in Long Term Evolution (LTE) systems, it is called an evolved NodeB (eNB); in 5G New Radio (NR) systems, it is called a next-generation NodeB (gNB). As communication technologies evolve, the description of "base station" may change. For the convenience of the description in the embodiments of this disclosure, the device that provides wireless communication functionality to terminal 14 is collectively referred to as network device 12.

[0040] Terminal 14 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment, mobile stations (MS), terminal devices, etc. For ease of description, the devices mentioned above are collectively referred to as terminals.

[0041] For example, there are two communication scenarios between network device 12 and terminal 14: uplink communication scenario and downlink communication scenario. Uplink communication refers to terminal 14 sending signals to network device 12; downlink communication refers to network device 12 sending signals to terminal 14.

[0042] For uplink, the spatial characteristics of the channels that PUSCHs actually pass through may vary greatly depending on the TRP. Therefore, it is assumed that the spatial reception parameters (such as Quasi CoLocation-type D, QCL-D) of PUSCHs in different transmission directions are different.

[0043] Release 15 (R15) and Release 16 (R16) did not consider multi-TRP (M-TRP) scenarios, and uplink transmission was performed for a single TRP. Release 17 enhanced the uplink transmission of M-TRP under S-DCI, and the uplink Physical Uplink Shared Channel (PUSCH) transmission was transmitted to multiple Transmission and Reception Points (TRPs). In Release 17 (R17) of the Third Generation Partnership Project (3GPP), the cooperative transmission under the Time Division Multiplexing (TDM) transmission mode was mainly standardized. The same information on the PUSCH was repeatedly transmitted to different TRPs at different time-division multiplexing transmission times (Transmission Occasion, TO). This method has relatively low requirements for terminal capabilities, does not require the ability to transmit beams simultaneously, and has a large transmission delay.

[0044] The enhancement goals of Release 18 (R18) primarily aim to achieve simultaneous cooperative transmission to multiple TRPs via multiple antenna panels on the terminal. This increases transmission reliability and throughput, while effectively reducing transmission latency under multiple TRPs. However, this requires the terminal to have the capability to transmit multiple beams simultaneously. PUSCH transmission can be based on multi-panel to multi-TRP transmission scheduled using a single Physical Downlink Control Channel (PDCCH) and Single Downlink Control Information (S-DCI), such as... Figure 1 As shown.

[0045] like Figure 1 As shown, a Downlink Control Information (DCI) message directly or indirectly schedules precoding matrix 1 and precoding matrix 2 to the terminal. Terminal 14 uses panel 1 to send one or more layers of uplink data to TRP1 based on precoding matrix 1. Terminal 14 uses panel 2 to send one or more layers of uplink data to TRP1 based on precoding matrix 2.

[0046] PUSCH transmission can also be based on multi-panel to multi-TRP transmission scheduled by different PDCCHs, i.e., Multi-Downlink Control Information (M-DCI), such as... Figure 2 As shown.

[0047] like Figure 2 As shown, TRP 1 sends the first DCI to terminal 14 via PDCCH 1, and scheduling terminal 14 sends PUSCH 1 to TRP 1 using panel 1; TRP 2 sends the second DCI to terminal 14 via PDCCH 2, and scheduling terminal 14 sends PUSCH 2 to TRP 2 using panel 2.

[0048] Optionally, TRP1 and TRP2 can be two TRPs from the same cell or two TRPs from different cells.

[0049] In the uplink transmission method provided in this application, at least one of the at least two uplink channels is repeatedly transmitted at at least two time-domain locations, and at least two uplink channels are simultaneously transmitted across multiple panels at at least one of the at least two time-domain locations; the at least two uplink channels correspond one-to-one with at least two beam information. For example, N uplink channels correspond one-to-one with N beam information. Optionally, the beam information is at least one of antenna panel, TRP, and beam. Exemplarily, beam refers to beam, or spatial relation information, spatial setting, spatial Rx parameter, Tx spatial filter, spatial domain receive filter, Transmission Configuration Indication (TCI) status, QuasiCoLocation Type D (QCL Type D).

[0050] For example, N uplink channels correspond one-to-one with N antenna panels, or N uplink channels correspond one-to-one with N TRPs, or N uplink channels correspond one-to-one with N beams, where N is greater than or equal to 2.

[0051] For example, such as Figure 3As shown, TRP 1 sends the first DCI to terminal 14 via PDCCH 1, and scheduling terminal 14 repeatedly sends PUSCH 1 to TRP 1 using panel 1 at N+1 time domain positions, where N is a positive integer greater than 1; TRP 2 sends the second DCI to terminal 14 via PDCCH 2, and scheduling terminal 14 repeatedly sends PUSCH 2 to TRP 2 using panel 2 at time domain positions 0 and 1.

[0052] For example, in a scenario where multiple panels transmit simultaneously, the uplink transmission process includes: a codebook-based uplink transmission process and a non-codebook-based uplink transmission process.

[0053] Figure 4 A schematic diagram of a codebook-based uplink transmission process provided in an exemplary embodiment of the present disclosure is shown, the schematic diagram including a terminal 22 and a network device 24.

[0054] In the codebook-based uplink transmission process, network device 24 first sends a Sounding Reference Signal (SRS) resource configuration to terminal 22. The SRS resource configuration includes at least one SRS resource and the time-frequency resource location of each SRS resource. Then, terminal 22 sends at least one SRS to network device 24 based on the SRS resource configuration. Network device 24 obtains the channel status of each uplink channel based on the received at least one SRS and then provides a DCI to terminal 22. The DCI includes at least an SRS Resource Indication (SRI) and a Transmitted Precoding Matrix Indicator (TPMI). Finally, terminal 22 sends a PUSCH to network device 24 based on the SRI and TPMI.

[0055] Figure 5 A schematic diagram of a non-codebook-based uplink transmission process provided by an exemplary embodiment of the present disclosure is shown, the schematic diagram including a terminal 22 and a network device 24.

[0056] In the non-codebook-based uplink transmission process, the precoding matrix is ​​no longer limited to a fixed candidate set. Network device 24 first sends a Channel State Information-Reference Symbol (CSI-RS) and SRS resource configuration information to terminal 22. The SRS resource configuration includes at least one SRS resource and the time-frequency resource location of each SRS resource. Then, based on the measurement results of CSI-RS, terminal 22 calculates at least one possible precoding matrix using algorithms such as singular value decomposition. Then, terminal 22 sends at least one SRS to network device 24 based on the SRS resource configuration. Network device 24 obtains the channel status of each uplink channel based on the received at least one SRS, and then provides DCI to terminal 22. This DCI includes at least SRI. Finally, terminal 22 determines the precoding matrix to be used from the possible precoding matrices based on the SRI, and sends PUSCH to network device 24 based on the SRI and the precoding matrix to be used.

[0057] Figure 6 A flowchart illustrating an exemplary embodiment of the present disclosure provides a method for uplink transmission, the method being applied to Figure 1 In the terminal of the communication system shown, the method includes:

[0058] Step 302: The terminal repeatedly transmits at least one of the at least two uplink channels at at least two time-domain locations, and performs multi-panel simultaneous transmission of at least two uplink channels at at least one of the at least two time-domain locations; the at least two uplink channels correspond one-to-one with at least two beam information.

[0059] The terminal transmits information to at least two uplink channels using at least two beams. For example, the number of beams can be two or four; for instance, the number of antenna panels (referred to as "panels") can be two or four.

[0060] At at least one of at least two time-domain locations, uplink channels are simultaneously transmitted based on at least two beam information. Different beam information is used to transmit different uplink channels simultaneously. For example, the at least two beam information includes first beam information and second beam information, such as a first antenna panel and a second antenna panel, or a first beam and a second beam, or a first TRP and a second TRP. At the first time-domain location, the first beam information is associated with the first uplink channel, and the second beam information is associated with the second uplink channel. That is, at the same time-domain location, the first beam information and the second beam information simultaneously transmit their respective corresponding uplink channels.

[0061] It should be noted that the uplink channel is transmitted based on the associated beam information, that is, the beam information is associated with a certain uplink channel and the uplink channel is transmitted through the beam information; it can also be described as transmitting the uplink channel based on the beam information.

[0062] For example, at least two data points are transmitted on the uplink channel using at least two beam information points, with each beam information point corresponding to one of the at least two data points. For instance, at at least one of the at least two time-domain locations, first data is transmitted on the first uplink channel using first beam information, and second data is transmitted on the second uplink channel using second beam information.

[0063] Alternatively, the same data can be transmitted on the uplink channel using at least two beam information. For example, at at least one of at least two time-domain locations, the third data can be transmitted on the first uplink channel using the first beam information, and on the second uplink channel using the second beam information.

[0064] It should be noted that transmitting data on the uplink channel using beam information can also be described as transmitting data using the uplink channel with beam information.

[0065] In this embodiment, each beam information can be used to transmit complete data.

[0066] Optionally, the uplink channel includes at least one of the following: PUSCH and PUCCH.

[0067] Optionally, the uplink channel is a PUSCH, which includes at least one of the following: Dynamic Grant PUSCH (DG PUSCH), Configured Grant PUSCH Type 1 (CGPUSCH Type 1), and Configured Grant PUSCH Type 2 (CG PUSCH Type 2).

[0068] Optionally, the uplink channel is a PUCCH, which includes at least one of the following: PUCCH format0, PUCCH format1, PUCCH format2, PUCCH format3, and PUCCH format4.

[0069] In at least two beam information, at least one beam information is repeatedly transmitted for at least one uplink channel; each of the at least one beam information transmits its corresponding uplink channel at at least two time domain locations.

[0070] Repeated transmission of at least one uplink channel means transmitting at least one uplink channel at each of at least two time-domain locations. For example, repeated transmission of the first uplink channel means transmitting the first uplink channel at each of at least two time-domain locations.

[0071] In scenarios involving simultaneous transmission across multiple panels, at least one of the at least two beam information pieces is repeatedly transmitted to its associated uplink channel using the aforementioned repetitive transmission method. That is, a portion of the at least two beam information pieces is repeatedly transmitted to the uplink channel. For example, in a scenario involving simultaneous transmission across multiple panels, at each of the at least two time-domain locations, the first uplink channel is transmitted using the first beam information, and at the initial time-domain location of the at least two time-domain locations, the second uplink channel is transmitted once using the second beam information.

[0072] Alternatively, all of the information from at least two beams may be repeatedly transmitted to the uplink channel. For example, in a scenario where multiple panels transmit simultaneously, the first uplink channel may be transmitted using the first beam information at each of at least two time-domain locations; and the second uplink channel may be transmitted using the second beam information at each of at least two time-domain locations.

[0073] Optionally, the aforementioned at least two time-domain locations correspond to at least two sets of TOs, and each set of TOs includes at least two TOs, with each set corresponding to at least two beam information. All TOs in each set of TOs are located in the same time-domain location. The number of TOs in each set of TOs is the same as the number of beam information used by the terminal. For example, if the number of beam information is 2, then each set of TOs includes 2 TOs, with each set corresponding to 2 beam information; for example, the first beam information corresponds to TO1, and the second beam information corresponds to TO2.

[0074] Optionally, each group of TOs includes at least two TOs that completely overlap in the time domain.

[0075] Optionally, at least two TOs included in each group of TOs partially overlap in the time domain.

[0076] For example, such as Figure 3As shown, at time domain position 0, panel 1 transmits PUSCH 1 to TRP1, and panel 2 transmits PUSCH 2 to TRP2; at time domain position 1, panel 1 transmits PUSCH 1 to TRP1, and panel 2 transmits PUSCH 2 to TRP2; ...; at time domain position N, panel 1 transmits PUSCH 1 to TRP1, and panel 2 no longer transmits PUSCH 2 to TRP2. N is a positive integer greater than 1, realizing repeated transmission of the uplink channel at multiple time domain positions and simultaneous transmission by multiple panels.

[0077] Optionally, the above-mentioned at least two uplink channels completely overlap in the time domain; or, the above-mentioned at least two uplink channels partially overlap in the time domain.

[0078] Optionally, the above-mentioned at least two uplink channels completely overlap in the frequency domain; or, the above-mentioned at least two uplink channels partially overlap in the frequency domain; or, the above-mentioned at least two uplink channels do not overlap in the frequency domain.

[0079] In summary, the uplink transmission method provided in this embodiment transmits at least two associated uplink channels at at least two time-domain locations using at least two beam information, achieving simultaneous transmission of uplink channels across multiple panels; and transmits at least one of the at least two uplink channels at each of the at least two time-domain locations, achieving repeated transmission of the aforementioned uplink channels. This method supports a multi-panel simultaneous transmission scheme while further supporting repeated transmission of the same uplink channel in the time domain, realizing a hybrid transmission scheme of multi-panel simultaneous transmission and repeated transmission. This supports better reliability and uplink coverage performance, and under reasonable system scheduling, it can also enhance uplink throughput.

[0080] In some embodiments, the network device configures the number of repetitions for the terminal, and the terminal performs repeated transmissions of the uplink channel according to the configured number of repetitions.

[0081] Optionally, the network device configures the repetition count of multiple uplink channels for the terminal based on the M-DCI. For example, the network device configures the repetition count of at least two uplink channels for the terminal through at least two DCIs, with each of the at least two DCIs corresponding to one of the at least two uplink channels.

[0082] Alternatively, the network device can configure the terminal with multiple repetition counts corresponding to various beam information based on the M-DCI. For example, the network device can configure the terminal with at least two repetition counts corresponding to at least two beam information through at least two DCIs; wherein, at least two DCIs correspond one-to-one with at least two beam information.

[0083] Optionally, at least two beam information may have the same number of repetitions for different beam information; and / or, at least two beam information may have different numbers of repetitions for different beam information.

[0084] At least two beam information pieces correspond to the same number of repetitions, meaning that all beam information pieces in at least two beam information pieces have the same number of repetitions. For example, at least two beam information pieces include a first beam information piece and a second beam information piece; the first beam information piece corresponds to 4 repetitions, and the second beam information piece corresponds to 4 repetitions.

[0085] Alternatively, at least two beam information segments have different repetition counts, meaning that the repetition counts between any two beam information segments are different. For example, at least two beam information segments include a first beam information segment, a second beam information segment, and a third beam information segment; the first beam information segment has a repetition count of 2, the second beam information segment has a repetition count of 4, and the third beam information segment has a repetition count of 6.

[0086] Alternatively, at least two beam information segments may have the same number of repetitions for some segments and different numbers of repetitions for others. For example, at least two antenna panels may include a first, second, and third antenna panel, or at least two TRPs may include a first, second, and third TRP, or at least two transmission beams may include a first, second, and third transmission beam; the first beam information may have a repetition count of 2, the second beam information may have a repetition count of 4, and the third beam information may have a repetition count of 4.

[0087] Optionally, if different beam information corresponds to different repetition counts in at least two beam information sets, the terminal determines the maximum repetition count, the minimum repetition count, the average repetition count (rounded to the nearest integer), or the median repetition count from the at least two repetition counts corresponding to the at least two beam information sets. The terminal then transmits data to the at least two uplink channels according to the maximum, minimum, average, or median repetition count. In other words, when the repetition counts differ, the terminal re-determines a new repetition count and uses this re-determined count for transmission across multiple uplink channels. The at least two repetition counts correspond one-to-one with the at least two beam information sets.

[0088] For example, when each beam information is transmitted uplink using its own corresponding number of repetitions, the uplink channel repetition transmission process includes:

[0089] If the number of repetitions corresponding to the first beam information is greater than one, the uplink channel corresponding to the first beam information is repeatedly transmitted at at least two time domain locations; wherein, the first beam information is one of at least two beam information.

[0090] And / or, if the number of repetitions corresponding to the second beam information is greater than one, the uplink channel corresponding to the second beam information is repeatedly transmitted at at least two time-domain locations; wherein the second beam information is the other of at least two beam information.

[0091] For example, taking the repeated transmission of the first beam information uplink channel as an example, step 302 above may include step 402, such as... Figure 7 As shown, the steps are as follows:

[0092] Step 402: If the number of repetitions corresponding to the first beam information is greater than one, the terminal repeatedly transmits the uplink channel corresponding to the first beam information at at least two time domain locations; wherein the first beam information is one of at least two beam information.

[0093] The first beam information corresponds to the first uplink channel; if the number of repetitions corresponding to the first beam information is greater than one, the terminal transmits the first uplink channel at each of at least two time-domain locations.

[0094] The number of repetitions corresponding to the first beam information mentioned above is configured by the network device.

[0095] Optionally, the uplink channel is PUSCH. If the repetition count configured in the first DCI of the M-DCI is greater than one, the uplink channel corresponding to the first beam information is repeatedly transmitted at at least two time-domain locations. The first DCI is used to configure the repetition count corresponding to the first beam information. Optionally, the repetition count corresponding to the first beam information is configured by the repetition count parameter (i.e., numberOfRepetitions) included in the Time Domain Resource Allocation (TDRA) of the first DCI.

[0096] For example, the terminal receives the first DCI sent by the network device, reads the value of numberOfRepetitions contained in the TDRA in the first DCI, and obtains the above-mentioned number of repetitions; if the number of repetitions is greater than one, the terminal repeatedly transmits to the first uplink channel through the first beam information at at least two time domain locations.

[0097] Optionally, the uplink channel is a PUCCH. If the repetition count configured in the first PUCCH configuration is greater than one, the uplink channel corresponding to the first beam information is repeatedly transmitted at at least two time-domain locations. The first PUCCH configuration is used to configure the repetition count corresponding to the first beam information. Optionally, the repetition count corresponding to the first beam information is configured by the time slot repetition count parameter (nrofSlots) in the first PUCCH configuration.

[0098] For example, the terminal receives the first PUCCH configuration sent by the network device, reads the value of nrofSlots contained in the first PUCCH configuration, and obtains the above-mentioned repetition count; if the repetition count is greater than one, the terminal repeatedly transmits the first uplink channel through the first beam information at at least two time domain locations.

[0099] For example, the repeated transmission of the second beam information is described below.

[0100] The second beam information corresponds to the second uplink channel; when the number of repetitions corresponding to the second beam information is greater than one, the terminal transmits the second uplink channel at each of at least two time-domain locations.

[0101] The number of repetitions corresponding to the second beam information mentioned above is configured by the network device.

[0102] Optionally, the uplink channel is PUSCH. If the repetition count configured in the second DCI of the M-DCI is greater than one, the uplink channel corresponding to the second beam information is repeatedly transmitted at at least two time-domain locations. The second DCI is used to configure the repetition count corresponding to the second beam information, and the first DCI and the second DCI are different DCIs. Optionally, the repetition count corresponding to the second beam information is configured by the numberOfRepetitions included in the TDRA of the second DCI.

[0103] Optionally, the uplink channel is a PUCCH. If the repetition count configured in the second PUCCH configuration is greater than one, the uplink channel corresponding to the second beam information is repeatedly transmitted at at least two time-domain locations. The second PUCCH configuration is used to configure the repetition count corresponding to the second beam information. Optionally, the repetition count corresponding to the second beam information is configured by nrofSlots in the second PUCCH configuration, and the first and second PUCCH configurations are different PUCCH configurations.

[0104] In various embodiments of this application, a control resource set pool index (CoresetPoolIndex) parameter is used to distinguish different beam information. For example, beam information is associated one-to-one with the uplink channel via CoresetPoolIndex. Alternatively, beam information is associated one-to-one with the DCI via CoresetPoolIndex. Another example is that beam information is associated one-to-one with the repetition count via CoresetPoolIndex. Yet another example is that beam information is associated one-to-one with the type of repeated transmission via CoresetPoolIndex.

[0105] In summary, the uplink transmission method provided in this embodiment configures the number of repetitions associated with repetitive transmission for each antenna panel of the terminal. In the scenario of multiple panels transmitting simultaneously, it also supports repetitive transmission of the uplink channel, realizing a hybrid transmission scheme of simultaneous transmission of multiple panels and repetitive transmission. This is used to support better reliability and uplink coverage performance, and under reasonable system scheduling, it can also enhance uplink throughput.

[0106] In the above embodiments, the type of repeated transmission of the uplink channel is repetition type A and / or repetition type B.

[0107] ·PUSCH

[0108] The uplink PUSCH time-domain repetition transmission enhancement methods include: repetition type A transmission method and repetition type B transmission method.

[0109] 1) PUSCH repeat type A transmission mode

[0110] A PUSCH is transmitted in N consecutive time slots, i.e. N transmission opportunities. Transmission begins on the Sth symbol in the initial time slot, and each transmission opportunity lasts for L symbols. At the same time, N+L do not exceed the time slot boundary.

[0111] like Figure 8 As shown, the repetition count is 2, and each TO occupies 4 symbols in each time slot: symbols 9-12. The symbol positions occupied in the two time slots are the same.

[0112] Alternatively, a PUSCH can be transmitted over N consecutive sub-slots, i.e., N transmission opportunities, starting on the S-th symbol in the initial sub-slot, with each transmission opportunity lasting for L symbols, and N+L not exceeding the sub-slot boundary.

[0113] like Figure 9 As shown, the repetition count is 4. In each sub-slot, one TO occupies 2 symbols. The first sub-slot occupies symbols 0-1, and the second sub-slot occupies symbols 7-8. Both of these symbols occupy the first and second symbols in the sub-slot.

[0114] 2) PUSCH repeat type B transmission mode

[0115] To reduce latency and improve reliability, a PUSCH repetition scheme based on mini-slots is supported, and allowing PUSCH transmission across slots can further reduce latency.

[0116] In the time domain, a PUSCH begins transmission on the S-th symbol a in the initial time slot and transmits N consecutive repetitions. Each repetition occupies L symbols back-to-back, and the transmission of N+L can cross time slot boundaries.

[0117] like Figure 10-15 As shown, when a transmission occurs across time slot boundaries, the transmission is re-segmented, corresponding to the actual number of transmissions N, i.e., actual repetition. For the entire transmission, time slot L*N represents the time window length for PUSCH transmission; downlink (DL) symbols are discarded and not used for PUSCH transmission. The base station can use the Slot Form Indicator (SFI) to indicate whether semi-static flexible symbols are dynamic uplink (UL) symbols or dynamic DL symbols. Therefore, semi-static flexible symbols may be available or unavailable for PUSCH. When there are unavailable symbols, they need to be discarded, and then transmission occurs on the remaining available symbols. The base station can also configure invalid symbol patterns that are unusable by the UE via signaling; that is, the UE will not transmit uplink data on invalid symbols indicated by signaling.

[0118] like Figure 10 As shown, N=2, L=4, S=5, meaning the first TO occupies symbols 4-7 within one time slot; the second TO occupies symbols 8-11 within the same time slot. Figure 11 As shown, N=4, L=4, S=5, meaning the first TO occupies symbols 4-7 within one time slot; the second TO occupies symbols 8-11 within the same time slot; the third TO spans multiple time slots, occupying symbols 12-13 from the previous time slot and symbols 0-1 from the next time slot; the fourth TO occupies symbols 2-5 within one time slot. Figure 12 As shown, N=1, L=14, S=5, meaning that one TO occupies symbols 4-13 in the previous time slot and symbols 0-3 in the next time slot.

[0119] The transmission parameters for PUSCH repeat types A and B are defined as follows:

[0120] Effective combinations of N and L

[0121]

[0122] In multi-TRP transmission, PDSCH supports cooperative transmission of up to two different downlink TRPs. In the TDM scheme, the transmission is similar to Type A, which is a time-slot level transmission. The mapping method of different beams (beam direction indicated by TCI state) to different repetition transmission timings can be configured semi-statically by higher-layer signaling to determine the specific transmission mapping scheme for each TB block.

[0123] The mapping relationship between TCI state and transmission timing can be mainly represented by the following schemes:

[0124] Option 1: Periodic mapping. Two TCI states are sequentially mapped to multiple configured transmission times. For example, for 4 transmissions, the TCI state mapping pattern is #1#2#1#2.

[0125] Option 2: Continuous Mapping. Two TCI states are continuously and cyclically mapped to multiple configured transmission times. For example, for 4 transmissions, the TCI state mapping pattern is #1#1#2#2. For more than 4 transmissions, the pattern is repeated. For example, for 8 transmissions, the TCI state mapping pattern is #1#1#2#2#1#1#2#2.

[0126] Optionally, the network device configures the terminal with PUSCH repetition type B, which can be achieved by configuring pusch-RepTypeIndicatorDCI-0-1-r16 as pusch-RepTypeB. For example, when using PUSCH repetition type B, PUSCH transmitted at at least two different time-domain locations are mapped to the same or different time-frequency resources.

[0127] ·PUCCH

[0128] For PUCCH based on multiple TRP-enhanced repetition methods, the following approaches can be considered:

[0129] 1) Inter-slot repetition mode: TDM repetition transmission is adopted to achieve time-division multiplexing of multiple beam directions facing multiple TRPs across multiple time slots. One PUCCH resource or two PUCCH resources can be considered.

[0130] 2) Intra-slot repetition: Time-division multiplexing is performed on different sub-slots within a single time slot for multiple beam directions of multiple TRPs. One or two PUCCH resources can be considered.

[0131] In some embodiments, at least two beam information types have different beam information types corresponding to the same type of repeated transmission; and / or, at least two beam information types have different beam information types corresponding to different types of repeated transmission.

[0132] In summary, the repetitive transmission method provided in this embodiment offers different repetitive transmission modes for uplink channels, supporting repetitive transmission of uplink channels in scenarios where multiple panels transmit simultaneously. It is used to realize a hybrid transmission scheme of simultaneous transmission and repetitive transmission for multiple panels, supporting better reliability and uplink coverage performance. At the same time, under reasonable system scheduling, it can also enhance uplink throughput.

[0133] In some embodiments, the uplink channel is a PUCCH; for each beam information, the corresponding multiplexing or dropping rules are used to handle the collisions of different PUCCHs.

[0134] For example, each beam information corresponds to its own multiplexing rules and / or discarding rules.

[0135] At least two beam information sets contain different beam information sets that have the same multiplexing rules; and / or, at least two beam information sets contain different beam information sets that have different multiplexing rules.

[0136] At least two beam information sets contain different beam information sets that have the same discarding rules; and / or, at least two beam information sets contain different beam information sets that have different discarding rules.

[0137] For example, the first beam information corresponds to the first multiplexing rule, and the second beam information corresponds to the second multiplexing rule. The first multiplexing rule and the second multiplexing rule can be the same or different.

[0138] The aforementioned multiplexing rule refers to merging H conflicting uplink channels into a single uplink channel when there are H conflicting uplink channels on a single beam, where H is a positive integer greater than 1. The aforementioned loss rule refers to discarding H-1 of the H conflicting uplink channels, or discarding all H conflicting uplink channels, where H is a positive integer greater than 1, when there are H conflicting uplink channels on a single beam.

[0139] In summary, the uplink channel conflict handling method provided in this embodiment can be used to handle multiple conflicting uplink channels on a single beam information in scenarios where multiple panels transmit simultaneously, thereby enabling repeated transmission of uplink channels on the beam information.

[0140] Figure 13A block diagram of an uplink transmission apparatus provided in an exemplary embodiment of the present disclosure is shown. This apparatus can be implemented as part or all of a terminal via software, hardware, or a combination of both. The apparatus includes:

[0141] The transmitting module 502 is configured to repeatedly transmit at least one of at least two uplink channels at at least two time-domain locations, and to transmit simultaneously across multiple panels for at least two uplink channels at at least one time-domain location; the at least two uplink channels correspond one-to-one with at least two beam information, the beam information being at least one of antenna panel, TRP and beam.

[0142] In some embodiments, the transmitting module 502 is configured to repeatedly transmit the uplink channel corresponding to the first beam information at at least two time domain locations if the number of repetitions corresponding to the first beam information is greater than one.

[0143] The first beam information is one of at least two beam information.

[0144] In some embodiments, the uplink channel is PUSCH;

[0145] The transmitting module 502 is configured to repeatedly transmit the uplink channel corresponding to the first beam information at at least two time domain locations when the repetition number of the first DCI configuration in the M-DCI is greater than one.

[0146] The first DCI is used to configure the number of repetitions corresponding to the first beam information.

[0147] In some embodiments, the number of repetitions is configured by the number of repetitions parameter in the TDRA of the first DCI.

[0148] In some embodiments, the uplink channel is PUCCH;

[0149] The transmitting module 502 is configured to repeatedly transmit the uplink channel corresponding to the first beam information at at least two time domain positions when the number of repetitions in the first PUCCH configuration is greater than one.

[0150] The first PUCCH configuration is used to configure the number of repetitions corresponding to the first beam information.

[0151] In some embodiments, the number of repetitions is configured by the slot repetition count parameter in the first PUCCH configuration.

[0152] In some embodiments, the transmitting module 502 is configured to transmit a first uplink channel corresponding to associated first beam information and a second uplink channel corresponding to associated second beam information at a first time domain location in at least two time domain locations.

[0153] In some embodiments,

[0154] In at least two beam information sets, there exist different beam information sets corresponding to the same number of repetitions; and / or,

[0155] At least two beam information sequences have different numbers of repetitions.

[0156] In some embodiments, the type of repeated transmission is repeat type A and / or repeat type B.

[0157] In some embodiments,

[0158] At least two uplink channels completely overlap in the time domain; or,

[0159] At least two uplink channels partially overlap in the time domain.

[0160] In some embodiments,

[0161] At least two uplink channels completely overlap in the frequency domain; or,

[0162] At least two uplink channels partially overlap in the frequency domain; or,

[0163] At least two uplink channels do not overlap in the frequency domain.

[0164] In some embodiments, at least two time-domain locations correspond to at least two sets of transmission opportunities (TO), each of the at least two sets of TO includes at least two TOs, and the at least two TOs correspond one-to-one with at least two beam information.

[0165] In some embodiments, at least two TOs partially or completely overlap in the time domain.

[0166] In some embodiments, at least two uplink channels include at least one of the following types:

[0167] Dynamic licensing for DG PUSCH, configuration licensing for CG PUSCH type 1, and CG PUSCH type 2.

[0168] In some embodiments, the uplink channel is PUCCH;

[0169] The device also includes: a processing module 504;

[0170] The processing module 504 is configured to handle conflicts between different PUCCHs for each beam information using its own corresponding multiplexing or dropping rules.

[0171] Figure 14 The diagram shows a schematic of a terminal provided in an exemplary embodiment of the present disclosure. The terminal includes a processor 1301, a receiver 1302, a transmitter 1303, a memory 1304, and a bus 1305.

[0172] The processor 1301 includes one or more processing cores. The processor 1301 executes various functional applications and information processing by running software programs and modules.

[0173] The receiver 1302 and the transmitter 1303 can be implemented as a communication component, which can be a communication chip.

[0174] The memory 1304 is connected to the processor 1301 via the bus 1305.

[0175] The memory 1304 can be used to store at least one instruction, and the processor 1301 can execute the at least one instruction to implement the various steps in the above method embodiments.

[0176] Furthermore, the memory 1304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random-access memory (SRAM), read-only memory (ROM), magnetic storage, flash memory, and programmable read-only memory (PROM).

[0177] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory including instructions that can be executed by a terminal's processor to complete the aforementioned uplink transmission method. For example, the non-transitory computer-readable storage medium may be a ROM, random-access memory (RAM), a compact disc read-only memory (CD-ROM), magnetic tape, floppy disk, and optical data storage device, etc.

[0178] Figure 15 This is a block diagram illustrating a network device 1400 according to an exemplary embodiment, which may be a base station.

[0179] Network device 1400 may include: processor 1401, receiver 1402, transmitter 1403, and memory 1404. Receiver 1402, transmitter 1403, and memory 1404 are respectively connected to processor 1401 via a bus.

[0180] The processor 1401 includes one or more processing cores. The processor 1401 executes the network device-side steps of the uplink transmission method provided in this embodiment by running software programs and modules. The memory 1404 can be used to store software programs and modules. Specifically, the memory 1404 can store an operating system 14041 and at least one application module 14042 required for a function. The receiver 1402 is used to receive communication data sent by other devices, and the transmitter 1403 is used to send communication data to other devices.

[0181] An exemplary embodiment of this disclosure also provides a computer-readable storage medium storing at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, at least one program, code set, or instruction set is loaded and executed by a processor to implement the uplink transmission method provided in the above-described method embodiments.

[0182] An exemplary embodiment of this disclosure also provides a computer program product or computer program, the computer program product or computer program including computer instructions stored in a computer-readable storage medium; a processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, causing the computer device to perform the uplink transmission method provided in the above-described method embodiments.

[0183] It should be understood that "a plurality of" as used herein refers to two or more. 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.

[0184] 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. An uplink transmission method, characterized in that, The method includes: Receive multiple downlink control information M-DCIs, wherein the M-DCIs are used to configure the repetition number of at least two beam information, and the at least two beam information correspond one-to-one with at least two uplink channels; If there are different repetition counts corresponding to different beam information in the at least two beam information, a target repetition count is determined from the at least two repetition counts corresponding to the at least two beam information, and the target repetition count is the maximum repetition count among the at least two repetition counts; According to the target repetition number, the at least two uplink channels are repeatedly transmitted at at least two time domain locations; wherein, the target repetition number replaces the repetition number corresponding to each of the at least two beam information and is uniformly used for the transmission of the at least two uplink channels; And at at least one of the at least two time-domain locations, the at least two uplink channels are simultaneously transmitted via multiple panels using the at least two beam information; The beam information is at least one of the following: antenna panel, transceiver point (TRP), beam, spatial relationship information, spatial reception parameters, transmit filter, spatial reception filter, transmission configuration indicator (TCI) status, and quasi-same location type (QCL-TypeD). The M-DCI includes a first DCI, which is used to configure the number of repetitions corresponding to the first beam information.

2. The method according to claim 1, characterized in that, The step of repeatedly transmitting at least one uplink channel among at least two uplink channels at at least two time-domain locations using the at least two beam information includes: If the number of repetitions corresponding to the first beam information is greater than one, the uplink channel corresponding to the first beam information is repeatedly transmitted at the at least two time domain locations. The first beam information is one of the at least two beam information.

3. The method according to claim 2, characterized in that, The uplink channel is the Uplink Physical Shared Channel (PUSCH).

4. The method according to claim 3, characterized in that, The number of repetitions is configured by the repetition count parameter in the Time Domain Resource Allocation (TDRA) of the first downlink control information (DCI).

5. The method according to claim 2, characterized in that, The uplink channel is the uplink physical control channel (PUCCH). The repetitive transmission of the at least two uplink channels at at least two time-domain locations includes: If the number of repetitions in the first PUCCH configuration is greater than one, the uplink channel corresponding to the first beam information is repeatedly transmitted at the at least two time-domain locations. The first PUCCH configuration is used to configure the number of repetitions corresponding to the first beam information.

6. The method according to claim 5, characterized in that, The number of repetitions is configured by the slot repetition count parameter in the first PUCCH configuration.

7. The method according to any one of claims 1 to 6, characterized in that, The step of simultaneously transmitting the at least two uplink channels via multiple panels at at least one of the at least two time-domain locations using the at least two beam information includes: At the first time domain location of the at least two time domain locations, the first uplink channel is transmitted with the corresponding associated first beam information, and the second uplink channel is transmitted with the corresponding associated second beam information.

8. The method according to any one of claims 1 to 6, characterized in that, The type of repeated transmission is repeat type A and / or repeat type B.

9. The method according to any one of claims 1 to 6, characterized in that, The at least two uplink channels completely overlap in the time domain; or, The at least two uplink channels partially overlap in the time domain.

10. The method according to any one of claims 1 to 6, characterized in that, The at least two uplink channels completely overlap in the frequency domain; or, The at least two uplink channels partially overlap in the frequency domain.

11. The method according to any one of claims 1 to 6, characterized in that, The at least two time-domain locations correspond to at least two sets of transmission opportunities (TOs), each of the at least two sets of TOs includes at least two TOs, and the at least two TOs correspond one-to-one with at least two beam information.

12. The method according to claim 11, characterized in that, The at least two TOs partially or completely overlap in the time domain.

13. The method according to any one of claims 1 to 4, characterized in that, The at least two uplink channels include at least one of the following types: Dynamic licensing for DG PUSCH, configuration licensing for CG PUSCH type 1, and CG PUSCH type 2.

14. The method according to claim 5 or 6, characterized in that, The uplink channel is PUCCH; The method further includes: For each beam information, the corresponding multiplexing or discarding rules are used to handle conflicts between different PUCCHs.

15. An uplink transmission device, characterized in that, The device includes: A module that receives multiple downlink control information M-DCIs, wherein the M-DCIs are used to configure the repetition count of at least two beam information, and the at least two beam information correspond one-to-one with at least two uplink channels; In the case where different beam information corresponds to different repetition counts in the at least two beam information, a module determines a target repetition count from the at least two repetition counts corresponding to the at least two beam information, wherein the target repetition count is the maximum repetition count among the at least two repetition counts; The transmitting module is configured to repeatedly transmit the at least two uplink channels at at least two time-domain locations according to the target repetition number; wherein the target repetition number replaces the repetition number corresponding to each of the at least two beam information and is uniformly used for the transmission of the at least two uplink channels; And at at least one of the at least two time-domain locations, the at least two uplink channels are simultaneously transmitted via multiple panels using the at least two beam information; The beam information is at least one of the following: antenna panel, transceiver point (TRP), beam, spatial relationship information, spatial reception parameters, transmit filter, spatial reception filter, transmission configuration indicator (TCI) status, and quasi-same location type (QCL-TypeD). The M-DCI includes a first DCI, which is used to configure the number of repetitions corresponding to the first beam information.

16. A terminal, characterized in that, The terminal includes: processor; A transceiver connected to the processor; The processor is configured to load and execute executable instructions to implement the uplink transmission method as described in any one of claims 1 to 14.

17. A chip, characterized in that, The chip includes programmable logic circuitry and / or program instructions, which, when the chip is running, are used to implement the uplink transmission method as described in any one of claims 1 to 14.

18. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the uplink transmission method as described in any one of claims 1 to 14.

19. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium; a processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions to cause the computer device to perform the uplink transmission method as described in any one of claims 1 to 14.

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