Method, terminal and network side device for uplink transmission

Abstract

The embodiment of the application discloses an uplink transmission method, a terminal and a network side device, and belongs to the technical field of wireless communication. The method comprises the following steps: a terminal determines a first duration according to first information; and based on the first duration, multiple first uplink transmissions are performed on a first service cell, and the multiple first uplink transmissions meet predetermined requirements.

Description

Technical Field

[0001] This application belongs to the field of wireless communication technology, specifically relating to an uplink transmission method, terminal, and network-side equipment. Background Technology

[0002] In wireless communication technology, if network-side equipment can perform joint demodulation reference signal (DMRS) channel estimation based on multiple uplink transmissions, then the performance of uplink reception can be effectively improved.

[0003] However, there is currently a lack of uplink transmission schemes that can support joint DMRS channel estimation. Summary of the Invention

[0004] This application provides an uplink transmission method, terminal, and network-side device that can solve the problem of the current lack of uplink transmission schemes that support joint DMRS channel estimation.

[0005] In a first aspect, an uplink transmission method is provided, executed by a terminal, the method comprising: determining a first duration based on first information; performing multiple first uplink transmissions on a first serving cell based on the first duration, the multiple first uplink transmissions satisfying predetermined requirements; wherein the first information includes at least one of the following: a number of time units indicated by a network-side device; a number of repeated transmissions of the first uplink transmission indicated by the network-side device; a number of consecutive / quasi-consecutive time units occupied by at least one of the multiple first uplink transmissions; configured uplink / downlink resource configurations; a time-domain resource length for nominal transmission of a specified channel, the specified channel including a Physical Uplink Shared Channel (PUSCH) and / or a Physical Uplink Control Channel (PUCCH); specified time resources, the specified time resources being time-domain resources corresponding to a demodulation reference signal (DMRS) determined for the first uplink transmission; and terminal capability information.

[0006] Secondly, an uplink transmission method is provided, executed by a network-side device, the method comprising: a receiving terminal performing multiple first uplink transmissions on a first serving cell based on a first duration, the multiple first uplink transmissions satisfying predetermined requirements, the first duration being determined according to first information; wherein the first information includes at least one of the following: a number of time units indicated by the network-side device; a number of repeated transmissions of the first uplink transmission indicated by the network-side device; a number of consecutive / quasi-consecutive time units occupied by at least one of the multiple first uplink transmissions; configured uplink / downlink resource configuration; a time-domain resource length for nominal transmission of a specified channel, the specified channel including a Physical Uplink Shared Channel (PUSCH) and / or a Physical Uplink Control Channel (PUCCH); specified time resources, the specified time resources being the time-domain resources corresponding to the demodulation reference signal (DMRS) determined for the first uplink transmission; and terminal capability information.

[0007] Thirdly, an uplink transmission apparatus is provided, the apparatus comprising: a determining module, configured to determine a first duration based on first information; and a transmission module, configured to perform multiple first uplink transmissions on a first serving cell based on the first duration, the multiple first uplink transmissions satisfying predetermined requirements; wherein the first information includes at least one of the following: a number of time units indicated by a network-side device; a number of repeated transmissions of the first uplink transmission indicated by the network-side device; a number of consecutive / quasi-consecutive time units occupied by at least one of the multiple first uplink transmissions; configured uplink / downlink resource configurations; a time-domain resource length for nominal transmission of a designated channel, the designated channel including a Physical Uplink Shared Channel (PUSCH) and / or a Physical Uplink Control Channel (PUCCH); a designated time resource, the designated time resource being the time-domain resource corresponding to a demodulation reference signal (DMRS) determined for the first uplink transmission; and terminal capability information.

[0008] Fourthly, an uplink transmission apparatus is provided, the apparatus comprising: a receiving module, configured to receive a plurality of first uplink transmissions performed by a terminal on a first serving cell based on a first duration, the plurality of first uplink transmissions satisfying predetermined requirements, the first duration being determined according to first information; wherein the first information includes at least one of the following: a number of time units indicated by a network-side device; a number of repeated transmissions of the first uplink transmission indicated by the network-side device; a number of consecutive / quasi-consecutive time units occupied by at least one of the plurality of first uplink transmissions; configured uplink / downlink resource configurations; a time-domain resource length for nominal transmission of a designated channel, the designated channel including a Physical Uplink Shared Channel (PUSCH) and / or a Physical Uplink Control Channel (PUCCH); a designated time resource, the designated time resource being the time-domain resource corresponding to the demodulation reference signal (DMRS) determined for the first uplink transmission; and terminal capability information.

[0009] Fifthly, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0010] In a sixth aspect, a network-side device is provided, the network-side device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method as described in the second aspect.

[0011] In a seventh aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0012] Eighthly, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run network-side device programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0013] A ninth aspect provides a computer program product including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0014] In this embodiment, the terminal determines a first duration based on first information, and then performs multiple first uplink transmissions on the first serving cell based on the first duration. The multiple first uplink transmissions meet predetermined requirements, thereby enabling the multiple first uplink transmissions to maintain power and phase continuity within the first duration. This allows the network-side device to perform joint DMRS channel estimation based on the received uplink transmissions, effectively improving uplink transmission performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a wireless communication system provided in an exemplary embodiment of this application.

[0016] Figure 2a This is a flowchart illustrating an exemplary embodiment of the method for uplink transmission provided in this application.

[0017] Figures 2b-2e These are schematic diagrams of time slot structures provided by different exemplary embodiments of this application.

[0018] Figure 3 This is a flowchart illustrating an uplink transmission method provided in another exemplary embodiment of this application.

[0019] Figure 4a , Figure 4b These are schematic diagrams of time slot structures provided by different exemplary embodiments of this application.

[0020] Figure 5a This is a flowchart illustrating an uplink transmission method provided in another exemplary embodiment of this application.

[0021] Figure 5b This is a schematic diagram of a time slot structure provided in another exemplary embodiment of this application.

[0022] Figure 6 This is a flowchart illustrating an uplink transmission method provided in another exemplary embodiment of this application.

[0023] Figure 7 This is a block diagram of an uplink transmission apparatus provided in an exemplary embodiment of this application.

[0024] Figure 8 This is a block diagram of an uplink transmission apparatus provided in another exemplary embodiment of this application.

[0025] Figure 9 This is a block diagram of a terminal provided in an exemplary embodiment of this application.

[0026] Figure 10 This is a block diagram of a network-side device provided in an exemplary embodiment of this application. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0028] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. However, the following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description. These technologies can also be applied to applications beyond NR systems, such as 6th Generation (6G) communication systems.

[0030] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this embodiment of the application, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0031] The technical solutions provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0032] Figure 2 shows a flowchart of an uplink transmission method 200 provided in an exemplary embodiment of this application. The method 200 can be executed by a terminal, for example, by hardware and / or software installed in the terminal. The method 200 may include the following steps.

[0033] S210, determine the first duration based on the first information.

[0034] Wherein, the first duration is the time required for the terminal to maintain power and / or phase continuity during one or more uplink transmissions. In this embodiment, the first information may include at least one of the following (1)-(7).

[0035] (1) The number of time units indicated by the network-side device.

[0036] The time unit can be a slot, a sub-slot, a symbol subframe, a radio frame, etc.

[0037] For example, assuming the first duration is determined only based on (1), then the first duration can be equal to the number of time units indicated by the network-side device. For example, if the number of time units indicated by the network-side device is L time units, such as 2 slots, then the first duration is 2 slots.

[0038] It should be noted that the "time unit" mentioned in the following embodiments can be a time slot, sub-time slot, symbol, subframe, radio frame, etc., which will not be elaborated further.

[0039] (2) The number of repeated transmissions of the first uplink transmission as indicated by the network-side device.

[0040] If the number of repeated transmissions of the first uplink transmission indicated by the network-side device is N, and the first duration is determined only based on (2), then the first duration can be the number of time units corresponding to the N repeated transmissions of the first uplink transmission.

[0041] (3) The number of consecutive / quasi-consecutive time units occupied by at least one of the plurality of first uplink transmissions.

[0042] Wherein, the continuous / quasi-continuous satisfies at least one of the following requirements (3a)-(3e).

[0043] (3a) The time interval (gap) on the time domain resources is not greater than the third threshold.

[0044] (3b) The interval time on the time domain resources is not greater than the predetermined number of symbols threshold.

[0045] (3c) The number of intervals on the time-domain resources is not greater than the fourth threshold.

[0046] (3d) The number of intervals on the time domain resources is not greater than the longest duration of the first duration reported by the terminal.

[0047] (3e) There is no interval in the time domain resources, that is, in the absence of interval, they can be considered continuous.

[0048] In the preceding (3a)-(3e), the interval may be located at the middle position or other positions on the time domain resource. The time domain resource can be understood as a time domain resource corresponding to one or more first uplink transmissions. For example, when the time domain resource is a time domain resource corresponding to one first uplink transmission, the interval may be located at the middle position of the one first uplink transmission; when the time domain resource is a time domain resource corresponding to multiple first uplink transmissions, the interval may be located between two adjacent first uplink transmissions, or on any one of the multiple first uplink transmissions, without any limitation.

[0049] In addition, the size of the aforementioned interval, the third threshold, the symbol number threshold, and the fourth threshold can be configured by the network side or agreed upon by the protocol, and are not restricted here.

[0050] In one implementation, if the first duration is determined based on the number of consecutive / quasi-consecutive time units occupied by at least one of the plurality of first uplink transmissions shown in (3) above, then when performing a plurality of first uplink transmissions based on the first duration, the first uplink transmissions performed within the number of consecutive / quasi-consecutive time units can use the frequency domain resources at the same location.

[0051] (4) Configured uplink / downlink resources.

[0052] The uplink / downlink resource configuration can be configured by the network side, such as the configuration of uplink symbols (U), downlink symbols (D), or flexible symbols (S), and the configuration of uplink / downlink slots for Time Division Duplex (TDD).

[0053] (5) Specifies the time-domain resource length of the nominal transmission of the channel.

[0054] The time-domain resource length may be, but is not limited to, greater than one slot, and the designated channel includes the Physical Uplink Shared Channel (PUSCH) and / or the Physical Uplink Control Channel (PUCCH).

[0055] (6) Specify time resources.

[0056] The specified time resource refers to the time-domain resource corresponding to the demodulation reference signal (DMRS) used to determine the one or more first uplink transmissions. In this embodiment, the DMRS may include at least one of DMRS bundling, DMRS sharing, or other DMRS optimized transmission methods. Furthermore, the aforementioned "time-domain resource corresponding to the DMRS" can be understood as the time-domain resource used to determine the DMRS transmission, not the time-domain resource actually occupied by the DMRS.

[0057] For example, assuming the first duration is determined solely based on (6), then if the plurality of uplink transmissions use DMRS bundling and / or DMRS sharing and / or optimize DMRS transmission in time / frequency domain resources, the terminal considers its corresponding time resource to be the first duration.

[0058] (7) Terminal capability information.

[0059] The terminal determining the first duration based on terminal capability information can also be understood as follows: if the network-side device does not indicate the first duration, the terminal determines the first duration based on the terminal capability information; if the first duration indicated by the network-side device exceeds the first duration determined based on the terminal capability information, then the first duration determined by the terminal based on the terminal capability information is the first duration.

[0060] For example, if the duration of multiple consecutive first uplink transmissions exceeds the capability of the terminal (which can also be understood as the user), then the terminal is not required to maintain the power and phase continuity of these multiple uplink transmissions; or, if the power and phase continuity of the multiple uplink transmissions is guaranteed by the network-side device, that is, the user does not expect multiple consecutive uplink transmissions to be scheduled or configured, the duration of which exceeds the user's capability.

[0061] It should be noted that the first duration can be determined based on any one of (1)-(7), or based on two or more of (1)-(7). In the case where the first duration is determined based on two or more of (1)-(7), the first duration can be any one of the following (a)-(b).

[0062] (a) The specified value of at least two first time length values.

[0063] Wherein, the specified value is either the maximum or minimum value, and each of the first time length values ​​corresponds to different information in the first information. For example, suppose there are two first time length values, namely a first length value corresponding to the nominal transmission time domain resource length of the specified channel, and a second length value corresponding to the specified time resource, and the first length value is greater than the second length value. In this case, if the specified value is the maximum value, then the first duration is the first length value corresponding to the nominal transmission time domain resource length of the specified channel.

[0064] (b) The intersection between at least two second times.

[0065] In this embodiment, each of the second times corresponds to different information in the first information. Based on the different information in the first information corresponding to the second time, the second time can be a duration or a time range, without limitation. For example, if the second time is a time range, assuming there are two second times, (a1, a2) and (b1, b2), then the first duration can be the intersection of (a1, a2) and (b1, b2).

[0066] Based on the foregoing description of how the first duration is determined, the following will combine... Figures 2b-2e The determination of the first duration is further explained, wherein "U" represents an uplink time unit, "D" represents a downlink time unit, and "S" represents a flexible time unit.

[0067] like Figure 2b As shown, assuming the current frame structure is "DDDSUDDSUU", the second time is the time corresponding to (2) and (4) above, and the first uplink transmission PUSCH is in the uplink time slot (i.e. Figure 2b If repeated transmissions are performed on the "U" in the diagram, then the first duration can be... Figure 2b The first "U" shown corresponds to the time unit.

[0068] In addition, the network-side device may also indicate that the first duration is in units of the number of transmission repetitions, for example, taking the time length corresponding to 2 repeated transmissions as the first duration, and taking frame structure into account.

[0069] like Figure 2c As shown, in the "DDDSU" frame structure, the 14 symbols in the "S" slot include 2 uplink symbols, namely the last two symbols, and the terminal transmits over 2+14 uplink symbols. Figure 2cThe diagram shows the last two symbols of the "S" slot and the 14 symbols of the "U" slot. In this case, the terminal can use a continuous sequence of uplink symbols (2+14) as the first duration, which can be indicated by the network-side device or predefined.

[0070] Alternatively, if the network-side device is configured to have a first duration of 2 slots, but the actual first duration is less than 2 slots, then the first duration is the minimum value (min) among (2 slots, number of consecutive symbols).

[0071] Or, as Figure 2d As shown, the first duration configured by the network-side device is 1 slot, and each slot can contain 2 nominal transmissions of PUSCH (i.e., Figure 2d The “Nominal PUSCH repetition” shown in the figure has a repetition duration of 2+14 symbols, so the first duration can be the maximum value (max) of (1 slots, number of consecutive symbols).

[0072] Or, as Figure 2e As shown, the nominal PUSCH repeat transmission length configured by the network-side device is one slot (14 symbols). Due to downlink transmission segmentation, one nominal repeat transmission within a slot is split into two actual repeat transmissions. The first duration can be preset or indicated by the network to be the nominal PUSCH repeat transmission length, or greater than or equal to that length. However, since the actual number of consecutive symbols is 4 or 7, the first duration can be the minimum value among (1 slot / nominal PUSCH length, number of consecutive symbols). Alternatively, it can be understood as the intersection of the nominal repeat transmission duration and the number of consecutive symbols.

[0073] It is important to note that:

[0074] (1) The aforementioned PUSCH is only one possible uplink transmission, that is to say, the above Figures 2b-2e The method for determining the first duration shown can also be applied to other uplink transmissions such as PUCCH.

[0075] (2) The above PUSCH is a repeated transmission, or it can be a PUSCH / PUCCH transmission across multiple slots, and the multiple slots can be continuous or non-continuous.

[0076] (3) The schemes described in (1), (2), (3) and (5) included in the first information above can also be implemented individually. For example, for the FDD band (paired spectrum), continuous uplink and downlink transmission can be performed.

[0077] S220, based on the first duration, perform multiple first uplink transmissions on the first serving cell, the multiple first uplink transmissions satisfying predetermined requirements.

[0078] The fact that the plurality of first uplink transmissions meet the predetermined requirement during the first duration can be understood as follows: the power and phase of the plurality of first uplink transmissions supported by the terminal are continuous. This allows the network-side device to perform joint DMRS channel estimation based on the plurality of first uplink transmissions, thereby improving uplink transmission performance. In this embodiment, the predetermined requirement can be configured by the network-side device or agreed upon by a protocol, and is not limited here.

[0079] In the aforementioned uplink transmission method, the first uplink transmission may include at least one of PUCCH, PUSCH, Physical Random Access Channel (PRACH), and Sounding Reference Signal (SRS).

[0080] In addition, the first uplink transmission may include continuous transmission of at least one channel and / or signal. For example, the first uplink transmission may only include PUCCH, or it may include PUCCH, PUSCH, etc., without limitation.

[0081] In this embodiment, the terminal determines a first duration based on first information, and then performs multiple first uplink transmissions on the first serving cell based on the first duration. The multiple first uplink transmissions meet predetermined requirements, thereby enabling the multiple first uplink transmissions to maintain power and phase continuity within the first duration. This allows the network-side device to perform joint DMRS channel estimation based on the received uplink transmissions, effectively improving uplink transmission performance.

[0082] like Figure 3 The diagram shown is a flowchart illustrating an uplink transmission method 300 provided in an exemplary embodiment of this application. This method 300 can be executed by a terminal, for example, by hardware and / or software installed in the terminal. The method 300 may include the following steps.

[0083] S310, determine the first duration based on the first information.

[0084] The implementation process in S310 can be referred to the relevant description in the aforementioned method 200 to avoid repetition, and will not be repeated here.

[0085] S320, based on the first duration, perform multiple first uplink transmissions on the first serving cell, the multiple first uplink transmissions satisfying predetermined requirements.

[0086] In addition to referring to the relevant description in the aforementioned method 200, as a possible implementation of S320, when the terminal performs multiple first uplink transmissions based on the first duration, the start time of the first duration can be the start time of the first uplink transmission; or, the start time of the first duration can be the start time of the time unit in which the first uplink transmission is located.

[0087] Furthermore, the first uplink transmission during the first duration uses the same first transmission parameters, that is, the terminal does not change the transmission power according to the received Transmit Power Control (TPC) command, nor does it adjust the transmission power according to the path loss reference signal (RS) indicated by the network.

[0088] The first transmission parameters may include at least one of the following: transmission power, transmission filter, precoding method, antenna mapping method, modulation method, and transmission waveform corresponding to the first uplink transmission. The signal waveform varies depending on the first uplink signal. For example, when the first uplink transmission is PUCCH format 0 / 1 / 3 / 4, the signal waveform can be considered a DFT-S-OFDM waveform; when the first uplink transmission is PUCCH format 2, the signal waveform can be considered a CP-OFDM waveform; and when the first uplink transmission is PRACH, the signal waveform can be considered a DFT-S-OFDM waveform.

[0089] For example, assuming the first transmission parameter is the transmission power, the terminal maintains a constant transmission power during the first duration; even if the path loss measured by the terminal changes, the terminal will not adjust the transmission power during the first duration; or, even if the terminal receives a TPC command, the terminal will not adjust the transmission power according to the TPC command during the first duration; or, even if the terminal receives an update indication of an updated path loss reference RS, the terminal will not adjust the transmission power according to the measured value of the updated reference RS during the first duration.

[0090] Furthermore, if it is necessary to adjust the transmission parameters during the uplink transmission process, the second transmission parameters corresponding to the first uplink transmission can be adjusted using the first duration as the time unit. The second transmission parameters may include at least one of the following: transmission power, transmission filter, precoding method, antenna mapping method, and modulation method of the first uplink transmission.

[0091] For example, after completing the first uplink transmission within a first duration, the terminal can adjust the transmission power based on updated pathloss measurements, TPC commands, power control reference signals, etc.

[0092] It should be noted that the first transmission parameter and the second transmission parameter can be the same or different, and no restriction is imposed here.

[0093] In another implementation, at least some of the first uplink transmissions have different durations; or, the first durations of the multiple first uplink transmissions have the same duration.

[0094] Furthermore, in this embodiment, the predetermined requirement may include at least one of the following (1)-(7).

[0095] (1) The channel of the second uplink transmission is determined according to the channel of the third uplink transmission. The second uplink transmission is any one of the plurality of first uplink transmissions, and the third uplink transmission is any other uplink transmission among the plurality of first uplink transmissions other than the second uplink transmission.

[0096] Among them, (1) can be understood as: for the plurality of first uplink transmissions, the channel of one of the uplink transmissions can be determined based on the channel of other uplink channels. In this embodiment, "determine" can also be understood as inferring, predicting, etc.

[0097] For example, assuming that the plurality of first uplink channels include a first uplink channel c1, a second uplink channel c2, a second uplink channel c3, and a fourth uplink channel c4, and that the channels corresponding to the first uplink channel c1, the second uplink channel c2, and the second uplink channel c3 are known, then the channel of the fourth uplink channel c4 can be determined based on at least one of the corresponding channels of the first uplink channel c1, the second uplink channel c2, and the second uplink channel c3.

[0098] (2) The multiple first uplink transmissions use the same antenna port.

[0099] (3) The phases of the plurality of first uplink transmissions are continuous.

[0100] (4) The difference between the transmission power corresponding to the plurality of first uplink transmissions is less than the first threshold.

[0101] The first threshold can be configured by the network-side device or agreed upon by the protocol, such as detaP1.

[0102] (5) The transmission filters corresponding to the multiple first uplink transmissions are the same.

[0103] (6) The precoding methods corresponding to the multiple first uplink transmissions are the same.

[0104] (7) The difference between the DMRS and the data transmission symbol corresponding to the plurality of first uplink transmissions is less than the second threshold.

[0105] The data transmission symbols can be understood as information symbols other than the DMRS, such as useful information symbols. The difference can be a power difference, and the second threshold can be configured by the network-side device or agreed upon by the protocol, such as 0dB, 3dB, 4.77dB, detaP2, etc. In this case, the plurality of first uplink transmissions meeting the predetermined requirements can be that the power difference between the DMRS and the useful symbols corresponding to the plurality of first uplink transmissions is 0dB or less than or equal to detaP2. This embodiment does not impose any restrictions here.

[0106] It is understood that in this embodiment, the predetermined requirements may include one or more of the aforementioned (1)-(7), and are not limited herein.

[0107] It should be noted that when the terminal is scheduled or configured with uplink transmissions of a specified priority on the first serving cell, and / or when the terminal receives a specified instruction, the plurality of first uplink transmissions may not be required to meet the predetermined requirements. The specified priority can be high priority, etc., and the specified instruction may include dynamic slot format indication (dynamic SFI) and / or uplink conflict indication (UL CI).

[0108] For example, if the terminal is scheduled or configured with a high-priority PUSCH and a HARQ-ACK PUCCH that transmits a high-priority codebook on the first serving cell, such that the plurality of first uplink transmissions do not meet the first duration, then the plurality of first uplink transmissions are also not required to meet the predetermined requirements, such as power and phase continuity.

[0109] In this case, in the uplink transmission method provided in this embodiment, the terminal does not expect to be scheduled or configured with a specified priority uplink transmission on the first serving cell, and / or the terminal does not expect to receive a specified instruction.

[0110] Furthermore, in one implementation, when the terminal performs multiple first uplink transmissions that meet predetermined requirements on the first serving cell based on a first duration, it can select different transmission modes, which will be explained below with different examples.

[0111] Example 1: Suppose the terminal needs to perform frequency hopping transmission. Then, the first duration can be used as the granularity of the time domain, and the frequency domain transmission position corresponding to the plurality of first uplink transmissions can be determined based on the length of the first duration. Finally, frequency hopping transmission is performed on the plurality of first uplink transmissions based on the frequency domain transmission position.

[0112] For example, if the network instructs the terminal to perform frequency hopping, the terminal can determine the frequency domain transmission position based on the length of the first duration. Specifically, if the terminal transmits over four first durations and two frequency domain positions, then the terminal's frequency hopping method is as follows. Figure 4a As shown, the frequency domain transmission position of the first duration can be different at different start times. Or, in other words, the first duration can be different at different frequency domain positions.

[0113] Example 2

[0114] If the terminal needs to perform uplink transmission based on DMRS, the terminal can determine the DMRS transmission pattern of each first uplink transmission based on the length of the first duration, and then transmit multiple first uplink transmissions based on the DMRS transmission pattern.

[0115] For example, the terminal determines the number of DMRS symbols in the first duration based on the number of slots and / or symbols in the first duration, or the number of DMRS symbols in each slot / nominal (actual) PUSCH repetition in the first duration.

[0116] For example, in the relevant technical solutions, the DMRS pattern is determined based on the number of transmission symbols of one PUSCH. If multiple first uplink (mainly PUSCH and / or PUCCH) transmissions within a first duration are supported and the predetermined requirements are met, joint channel estimation of multiple transmissions can be supported. In this case, the overhead of DMRS can be reduced to improve the transmission code rate.

[0117] In this embodiment, as Figure 4bAs shown, the number of DMRS symbols in each slot can be different depending on the first duration. In a PUSCH transmission with only one slot in the first duration, there are 4 DMRS symbols; in a PUSCH transmission with two slots in the first duration, each slot contains 2 DMRS symbols.

[0118] Alternatively, the network-side device may be configured to transmit additional DMRS (DMRS with a larger number of symbols) PUSCH. When the number of continuously transmitted PUSCH symbols exceeds a threshold M, PUSCH transmission will proceed without additional DMRS. In other words, the terminal implicitly determines the DMRS pattern based on the duration of the aforementioned first duration.

[0119] It should be noted that whether the function of the terminal determining the transmission pattern of each of the first uplink transmissions of the DMRS based on the first duration is enabled can be configured by the network side.

[0120] S330, transmit capability indication information.

[0121] By sending the capability indication information, the terminal and the network-side device can achieve a consistent understanding, thus ensuring uplink transmission performance. In this embodiment, the capability indication information is used to indicate at least one of the following (1)-(3).

[0122] (1) Whether the multiple first uplink transmissions performed by the terminal on the first serving cell meet the predetermined requirements.

[0123] (2) The shortest time of the first duration.

[0124] (3) The longest duration of the first duration.

[0125] In one implementation, the longest duration of the first duration indicated by the capability indication information is greater than or equal to the longest duration of the first duration indicated by the network-side device.

[0126] In this embodiment, the network can further use DMRS of multiple slots for joint channel estimation.

[0127] like Figure 5a The diagram shown is a flowchart illustrating an uplink transmission method 500 provided in an exemplary embodiment of this application. This method 500 can be executed by a terminal, for example, by hardware and / or software installed in the terminal. The method 500 may include the following steps.

[0128] S510, determine the first duration based on the first information.

[0129] The implementation process of S510 can be found in the relevant descriptions in methods 200 and 300 above. To avoid repetition, it will not be repeated here.

[0130] S520, based on the first duration, perform multiple first uplink transmissions on the first serving cell, the multiple first uplink transmissions satisfying predetermined requirements.

[0131] In addition to referring to the relevant descriptions in methods 200 and 300, the implementation process of S520 can be implemented as follows: if the terminal is configured with multiple serving cells, and the terminal begins uplink transmission in the second serving cell during the first duration, then a predetermined operation is executed; that is, while executing S520, the terminal executes the predetermined operation if a predetermined condition is met. It can be understood that the uplink transmission in the second serving cell can be obtained by the network-side equipment through scheduling instructions such as higher-layer signaling (e.g., Radio Resource Control (RRC) signaling), Medium Access Control-Control Element (MAC CE), and Physical Downlink Control Channel (PDCCH).

[0132] The predetermined situation may include the terminal performing uplink transmission in the second serving cell during the first duration. The uplink transmission may include, but is not limited to, PUSCH, PUCCH, SRS, etc.

[0133] The predetermined operation includes at least one of the following (1)-(3).

[0134] (1) Discard uplink transmissions performed on the second serving cell.

[0135] (2) Uplink transmissions performed on the second serving cell are maintained. Accordingly, multiple first uplink transmissions performed by the terminal on the first serving cell are not required to meet the predetermined requirements.

[0136] (3) Discard the first designated transmission performed on the first serving cell, the first designated transmission being an uplink transmission performed in an overlapping time unit, the overlapping time unit being the time unit in which the first uplink transmission on the first serving cell overlaps with the uplink transmission on the second serving cell.

[0137] In one implementation, the predetermined condition may further include receiving a predetermined instruction and performing the predetermined operation, wherein the predetermined instruction indicates that the uplink transmission time of the second serving cell has reached a predetermined time. The predetermined time may be configured by the network side or agreed upon by a protocol. For example, the terminal may perform the aforementioned predetermined operation after receiving an instruction from the network-side device indicating that the uplink transmission time T in the second serving cell has elapsed.

[0138] In this embodiment, in addition to the implementation methods given above, if the uplink transmission corresponding to the second serving cell is a transmission with a predetermined priority, or if the uplink transmission corresponding to the second serving cell is a predetermined channel or signal, either of the following (1) or (2) is executed:

[0139] (1) Maintain uplink transmissions performed on the second serving cell.

[0140] (2) Discard the first designated transmission performed on the first serving cell, the first designated transmission being an uplink transmission performed in an overlapping time unit, the overlapping time unit being the time unit in which the first uplink transmission on the first serving cell overlaps with the uplink transmission on the second serving cell.

[0141] The predetermined priority transmission includes: a PUSCH with a predetermined priority and / or a PUCCH that transmits a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) corresponding to the predetermined priority codebook. The predetermined channel or channel includes at least one of the following: Physical Random Access Channel (PRACH), Physical Uplink Shared Channel carrying message 3 (MSG3PUSCH), Physical Uplink Shared Channel carrying message A (MSG-A PUSCH), and SRS.

[0142] Accordingly, if the uplink transmission corresponding to the second serving cell is not a transmission with a predetermined priority, and if the uplink transmission corresponding to the second serving cell is not a predetermined channel or channel, the uplink transmission performed in the second serving cell is discarded.

[0143] It should be noted that, in the aforementioned implementation, when the predetermined operation is the uplink transmission maintained on the second serving cell, the first duration is divided into a first part of duration and a second part of duration based on the start time of the uplink transmission on the second serving cell, wherein the first uplink transmission performed between the first part of duration and the second part of duration does not meet the predetermined requirement; or, the first uplink transmission performed between the first part of duration and the second part of duration continues to meet the predetermined requirement.

[0144] Accordingly, in the case where the predetermined operation is the uplink transmission maintained on the second serving cell, the first duration is divided into a first part duration and a second part duration based on the start time of the uplink transmission on the second serving cell, wherein the first uplink transmission performed during the first part duration satisfies the predetermined requirement, and / or the first uplink transmission performed during the second part duration satisfies the predetermined requirement.

[0145] Based on the description of method 500 above, the following is combined with... Figure 5b The aforementioned implementation method will be further explained.

[0146] Suppose that the network-side device configures multiple serving cells for the terminal, such as the first serving cell and the second serving cell. These serving cells are configured to communicate with each other using either carrier aggregation (CA) or dual connectivity (DC).

[0147] In this case, if the terminal may need to transmit simultaneously on multiple serving cells, for example... Figure 5b As shown, during a first duration of multiple first uplink transmissions on the first serving cell #1, the terminal begins uplink transmission on the second serving cell #2. In this case, from the start time of the terminal's uplink transmission on the serving cell #2, the terminal may not be able to meet the predetermined requirements within the first duration. Therefore, the terminal may perform the predetermined operation shown in the aforementioned method 500, such as at least one of (1)-(3) below.

[0148] (1) Discard uplink transmissions performed on the second serving cell.

[0149] (2) Uplink transmissions performed on the second serving cell are maintained. Accordingly, multiple first uplink transmissions performed by the terminal on the first serving cell are not required to meet the predetermined requirements.

[0150] (3) Discard the first designated transmission performed on the first serving cell, the first designated transmission being an uplink transmission performed in an overlapping time unit, the overlapping time unit being the time unit in which the first uplink transmission on the first serving cell overlaps with the uplink transmission on the second serving cell.

[0151] In one implementation, the predetermined requirement is not required to be met between the first part of the uplink transmission of serving cell #1 after the start time of slot / symbol n of the uplink transmission of serving cell #2 and the second part of the uplink transmission of serving cell #1 before the end time of slot / symbol n-1. However, the predetermined requirement continues to be met during the duration of the first part of the uplink transmission, and / or the predetermined requirement continues to be met during the duration of the second part of the uplink transmission.

[0152] In another implementation, if the uplink transmission of serving cell #2 is a high-priority transmission, or in the case of a specific channel / signal, execute (2) or (3) of the predetermined operation; otherwise execute (1); the high-priority transmission includes: a high-priority PUSCH, and a PUCCH that transmits the HARQ-ACK corresponding to the high-priority codebook.

[0153] In another implementation, the predetermined operation is performed after the terminal receives a network instruction to perform an uplink transmission of serving cell #2 for a time T. It should be noted that the network-side device will not trigger the above operation within a time T prior to a first duration transmission of serving cell #1. Figure 5b The uplink transmission of serving cell #2 is shown.

[0154] like Figure 6 The diagram shown is a flowchart illustrating an uplink transmission method 600 provided in an exemplary embodiment of this application. This method 600 can be executed by a network-side device, for example, by hardware and / or software installed in the network-side device. The method 600 may include the following steps.

[0155] S610, the receiving terminal performs multiple first uplink transmissions on a first serving cell based on a first duration, the multiple first uplink transmissions satisfying predetermined requirements, and the first duration is determined according to first information.

[0156] The first information includes at least one of the following (1)-(7).

[0157] (1) The number of time units indicated by the network-side device.

[0158] (2) The number of repeated transmissions of the first uplink transmission as indicated by the network-side device.

[0159] (3) The number of consecutive / quasi-consecutive time units occupied by at least one of the plurality of first uplink transmissions.

[0160] (4) Configured uplink / downlink resources.

[0161] (5) The time-domain resource length of the nominal transmission of the specified channel, wherein the specified channel includes the Physical Uplink Shared Channel (PUSCH) and / or the Physical Uplink Control Channel (PUCCH).

[0162] (6) Specify time resources, wherein the specified time resources are time-domain resources corresponding to the Demodulation Reference Signal (DMRS) for the first uplink transmission.

[0163] (7) Terminal capability information.

[0164] In one possible implementation, the predetermined requirement includes at least one of the following (1)-(7).

[0165] (1) The channel of the second uplink transmission is determined according to the channel of the third uplink transmission. The second uplink transmission is any one of the plurality of first uplink transmissions, and the third uplink transmission is any other uplink transmission among the plurality of first uplink transmissions other than the second uplink transmission.

[0166] (2) The multiple first uplink transmissions use the same antenna port.

[0167] (3) The phases of the plurality of first uplink transmissions are continuous.

[0168] (4) The difference between the transmission power corresponding to the plurality of first uplink transmissions is less than the first threshold.

[0169] (5) The transmission filters corresponding to the multiple first uplink transmissions are the same.

[0170] (6) The precoding methods corresponding to the multiple first uplink transmissions are the same.

[0171] (7) The difference between the DMRS and the data transmission symbol corresponding to the plurality of first uplink transmissions is less than the second threshold.

[0172] In another possible implementation, the continuous / quasi-continuous nature satisfies at least one of the following requirements: the interval time on the time-domain resource is not greater than a third threshold; the interval time on the time-domain resource is not greater than a predetermined symbol number threshold; the number of intervals on the time-domain resource is not greater than a fourth threshold; the number of intervals on the time-domain resource is not greater than the longest duration of the first duration reported by the terminal; or there are no intervals on the time-domain resource.

[0173] In another possible implementation, the first uplink transmission, performed within the number of consecutive / quasi-consecutive time units, uses the frequency domain resources at the same location.

[0174] In another possible implementation, the first duration is any one of the following: a specified value among at least two first time length values; the intersection between at least two second times; wherein each of the first time length values ​​corresponds to different information in the first information, and each of the second times corresponds to different information in the first information.

[0175] In another possible implementation, the specified value is either the maximum or minimum value.

[0176] In another possible implementation, the start time of the first duration is the start time of the first uplink transmission; or, the start time of the first duration is the start time of the time unit in which the first uplink transmission is located.

[0177] In another possible implementation, the first uplink transmission transmitted during the first duration uses the same first transmission parameters, wherein the first transmission parameters include at least one of the following: transmission power, transmission filter, precoding method, antenna mapping method, and modulation method corresponding to the first uplink transmission.

[0178] In another possible implementation, at least some of the first uplink transmissions have different durations; or, the first durations of the multiple first uplink transmissions have the same duration.

[0179] In another possible implementation, if the terminal is scheduled or configured with uplink transmissions of a specified priority on the first serving cell, and / or if the terminal receives a specified instruction, the plurality of first uplink transmissions are not required to meet the predetermined requirements.

[0180] In another possible implementation, the terminal does not expect to be scheduled or configured with a specified priority uplink transmission on the first serving cell, and / or the terminal does not expect to receive a specified instruction.

[0181] In another possible implementation, the specified instructions include a dynamic slot format indicator (dynamic SFI) and / or an uplink conflict indicator (UL CI).

[0182] In another possible implementation, the method further includes: receiving capability indication information, the capability indication information being used to indicate at least one of the following: whether a plurality of first uplink transmissions performed by the terminal on a first serving cell meet predetermined requirements; the shortest duration of the first duration; and the longest duration of the first duration.

[0183] In another possible implementation, the longest duration of the first duration indicated by the capability indication information is longer than the longest duration of the first duration indicated by the network-side device.

[0184] In another possible implementation, the first uplink transmission includes at least one of PUCCH, PUSCH, PRACH, and SRS.

[0185] In another possible implementation, the first uplink transmission includes continuous transmission of at least one channel and / or signal.

[0186] It should be noted that the implementation process of the aforementioned implementation methods given in this embodiment can be referred to the relevant descriptions in methods 200, 300, and 500. To avoid repetition, they will not be repeated here.

[0187] In this embodiment, by having the receiving terminal perform multiple first uplink transmissions on the first serving cell based on a first duration, the multiple first uplink transmissions can maintain phase continuity within the first duration, thereby solving the current problem of lacking an uplink transmission scheme that supports joint DMRS channel estimation and improving uplink transmission performance.

[0188] It should be noted that the uplink transmission method provided in this application embodiment can be executed by an uplink transmission device or a control module within that uplink transmission device for executing the uplink transmission method. This application embodiment uses the execution of the uplink transmission method by an uplink transmission device as an example to illustrate the uplink transmission device provided in this application embodiment.

[0189] like Figure 7The diagram shown is a block diagram of an uplink transmission apparatus 700 provided in an exemplary embodiment of this application. The apparatus 700 includes: a determining module 710, configured to determine a first duration based on first information; and a transmission module 720, configured to perform multiple first uplink transmissions on a first serving cell based on the first duration. The first information includes at least one of the following: the number of time units indicated by a network-side device; the number of repeated transmissions of the first uplink transmission indicated by the network-side device; the number of consecutive / quasi-consecutive time units occupied by at least one of the multiple first uplink transmissions; configured uplink / downlink resource settings; the time-domain resource length of a nominal transmission for a specified channel, the specified channel including a Physical Uplink Shared Channel (PUSCH) and / or a Physical Uplink Control Channel (PUCCH); specified time resources, the specified time resources being the time-domain resources corresponding to the demodulation reference signal (DMRS) determined for the first uplink transmission; and terminal capability information.

[0190] In one possible implementation, the plurality of first uplink transmissions satisfy predetermined requirements, the predetermined requirements including at least one of the following: the channel of the second uplink transmission is determined based on the channel of the third uplink transmission, the second uplink transmission is any one of the plurality of first uplink transmissions, and the third uplink transmission is any other uplink transmission among the plurality of first uplink transmissions other than the second uplink transmission; the plurality of first uplink transmissions use the same antenna port; the phases of the plurality of first uplink transmissions are continuous; the difference between the transmit power corresponding to the plurality of first uplink transmissions is less than a first threshold; the transmit filters corresponding to the plurality of first uplink transmissions are the same; the precoding methods corresponding to the plurality of first uplink transmissions are the same; and the difference between the DMRS and the data transmission symbol corresponding to the plurality of first uplink transmissions is less than a second threshold.

[0191] In another possible implementation, the continuous / quasi-continuous nature satisfies at least one of the following requirements: the interval time on the time-domain resource is not greater than a third threshold; the interval time on the time-domain resource is not greater than a predetermined symbol number threshold; the number of intervals on the time-domain resource is not greater than a fourth threshold; the number of intervals on the time-domain resource is not greater than the longest duration of the first duration reported by the terminal; or there are no intervals on the time-domain resource.

[0192] In another possible implementation, the first uplink transmission, performed within the number of consecutive / quasi-consecutive time units, uses the frequency domain resources at the same location.

[0193] In another possible implementation, the first duration is any one of the following: a specified value among at least two first time length values; the intersection between at least two second times; wherein each of the first time length values ​​corresponds to different information in the first information, and each of the second times corresponds to different information in the first information.

[0194] In another possible implementation, the specified value is either the maximum or minimum value.

[0195] In another possible implementation, the start time of the first duration is the start time of the first uplink transmission; or, the start time of the first duration is the start time of the time unit in which the first uplink transmission is located.

[0196] In another possible implementation, the first uplink transmission transmitted during the first duration uses the same first transmission parameters, wherein the first transmission parameters include at least one of the following: transmission power, transmission filter, precoding method, antenna mapping method, and modulation method corresponding to the first uplink transmission.

[0197] In another possible implementation, at least some of the first uplink transmissions have different durations; or, the first durations of the multiple first uplink transmissions have the same duration.

[0198] In another possible implementation, the transmission module 720 is further configured to adjust the second transmission parameters corresponding to the first uplink transmission using the first duration as the time unit, wherein the second transmission parameters include the transmission power of the first uplink transmission.

[0199] In another possible implementation, if the terminal is scheduled or configured with uplink transmissions of a specified priority on the first serving cell, and / or if the terminal receives a specified instruction, the plurality of first uplink transmissions are not required to meet the predetermined requirements.

[0200] In another possible implementation, the terminal does not expect to be scheduled or configured with a specified priority uplink transmission on the first serving cell, and / or the terminal does not expect to receive a specified instruction.

[0201] In another possible implementation, the specified instructions include a dynamic slot format indicator (dynamic SFI) and / or an uplink conflict indicator (UL CI).

[0202] In another possible implementation, the transmission module 720 is used to determine the frequency domain transmission position corresponding to the plurality of first uplink transmissions based on the length of the first duration; and to perform frequency hopping transmission based on the frequency domain transmission position.

[0203] In another possible implementation, the transmission module 720 is used to determine the transmission pattern of the DMRS for each of the first uplink transmissions based on the length of the first duration; and to perform transmission based on the transmission pattern of the DMRS.

[0204] In another possible implementation, the transmission module 720 is further configured to send capability indication information, which indicates at least one of the following: whether the multiple first uplink transmissions performed by the terminal on the first serving cell meet predetermined requirements; the shortest duration of the first duration; and the longest duration of the first duration.

[0205] In another possible implementation, the longest duration of the first duration indicated by the capability indication information is longer than the longest duration of the first duration indicated by the network-side device.

[0206] In another possible implementation, the first uplink transmission includes at least one of PUCCH, PUSCH, PRACH, and SRS.

[0207] In another possible implementation, the first uplink transmission includes continuous transmission of at least one channel and / or signal.

[0208] In another possible implementation, the transmission module 720 is further configured to perform a predetermined operation under predetermined conditions; the predetermined conditions include the terminal performing uplink transmission in the second serving cell during the first duration; the predetermined operation includes at least one of the following: discarding the uplink transmission performed in the second serving cell; maintaining the uplink transmission performed in the second serving cell; discarding a first designated transmission performed in the first serving cell, the first designated transmission being an uplink transmission performed in an overlapping time unit, the overlapping time unit being the time unit in which the first uplink transmission in the first serving cell overlaps with the uplink transmission in the second serving cell.

[0209] In another possible implementation, the predetermined situation further includes receiving a predetermined instruction and performing the predetermined operation, wherein the predetermined instruction is used to indicate that the uplink transmission time of the second serving cell reaches a predetermined time.

[0210] In another possible implementation, if the uplink transmission corresponding to the second serving cell is a transmission with a predetermined priority, or if the uplink transmission corresponding to the second serving cell is a predetermined channel or signal, perform any of the following: maintain the uplink transmission performed on the second serving cell; discard the first designated transmission performed on the first serving cell, the first designated transmission being an uplink transmission performed in an overlapping time unit, the overlapping time unit being the time unit in which the first uplink transmission on the first serving cell overlaps with the uplink transmission on the second serving cell.

[0211] In another possible implementation, if the uplink transmission corresponding to the second serving cell is not a transmission with a predetermined priority, and if the uplink transmission corresponding to the second serving cell is not a predetermined channel or channel, the uplink transmission performed in the second serving cell is discarded.

[0212] In another possible implementation, the transmission of the predetermined priority includes: a PUSCH with a predetermined priority and / or a PUCCH that transmits a hybrid automatic repeat request response (HARQ-ACK) corresponding to the predetermined priority codebook.

[0213] In another possible implementation, the predetermined channel or channel includes at least one of the following: Physical Random Access Channel (PRACH), Physical Uplink Shared Channel (MSG3PUSCH) carrying message 3, Physical Uplink Shared Channel (MSG-A PUSCH) carrying message A, and Sounding Reference Signal (SRS).

[0214] In another possible implementation, if the predetermined operation is the uplink transmission maintained on the second serving cell, the first duration is divided into a first duration and a second duration based on the start time of the uplink transmission on the second serving cell, wherein the first uplink transmission occurring between the first duration and the second duration does not meet the predetermined requirement; or, the first uplink transmission occurring between the first duration and the second duration continues to meet the predetermined requirement.

[0215] In another possible implementation, if the predetermined operation is the uplink transmission maintained on the second serving cell, the first duration is divided into a first duration and a second duration based on the start time of the uplink transmission on the second serving cell, wherein the first uplink transmission performed during the first duration satisfies the predetermined requirement, and / or the first uplink transmission performed during the second duration satisfies the predetermined requirement.

[0216] like Figure 8The illustration shows an uplink transmission apparatus 800 provided in an exemplary embodiment of this application. The apparatus 800 includes: a receiving module 810, configured to receive multiple first uplink transmissions performed by a terminal on a first serving cell based on a first duration, wherein the first duration is determined according to first information; wherein the first information includes at least one of the following: the number of time units indicated by a network-side device; the number of repeated transmissions of the first uplink transmission indicated by the network-side device; the number of consecutive / quasi-consecutive time units occupied by at least one of the multiple first uplink transmissions; configured uplink / downlink resource configuration; the time domain resource length of the nominal transmission of a specified channel, wherein the specified channel includes a Physical Uplink Shared Channel (PUSCH) and / or a Physical Uplink Control Channel (PUCCH); specified time resources, wherein the specified time resources are the time domain resources corresponding to the demodulation reference signal (DMRS) determined for the first uplink transmission; and terminal capability information.

[0217] In another possible implementation, the plurality of first uplink transmissions satisfy predetermined requirements, the predetermined requirements including at least one of the following: the channel of the second uplink transmission is determined according to the channel of the third uplink transmission, the second uplink transmission is any one of the plurality of first uplink transmissions, and the third uplink transmission is any other uplink transmission among the plurality of first uplink transmissions other than the second uplink transmission; the plurality of first uplink transmissions use the same antenna port; the phases of the plurality of first uplink transmissions are continuous; the difference between the transmit power corresponding to the plurality of first uplink transmissions is less than a first threshold; the transmit filters corresponding to the plurality of first uplink transmissions are the same; the precoding methods corresponding to the plurality of first uplink transmissions are the same; and the difference between the DMRS and the data transmission symbol corresponding to the plurality of first uplink transmissions is less than a second threshold.

[0218] In another possible implementation, the continuous / quasi-continuous nature satisfies at least one of the following requirements: the interval time on the time-domain resource is not greater than a third threshold; the interval time on the time-domain resource is not greater than a predetermined symbol number threshold; the number of intervals on the time-domain resource is not greater than a fourth threshold; the number of intervals on the time-domain resource is not greater than the longest duration of the first duration reported by the terminal; or there are no intervals on the time-domain resource.

[0219] In another possible implementation, the first uplink transmission, performed within the number of consecutive / quasi-consecutive time units, uses the frequency domain resources at the same location.

[0220] In another possible implementation, the first duration is any one of the following: a specified value among at least two first time length values; the intersection between at least two second times; wherein each of the first time length values ​​corresponds to different information in the first information, and each of the second times corresponds to different information in the first information.

[0221] In another possible implementation, the specified value is either the maximum or minimum value.

[0222] In another possible implementation, the start time of the first duration is the start time of the first uplink transmission; or, the start time of the first duration is the start time of the time unit in which the first uplink transmission is located.

[0223] In another possible implementation, the first uplink transmission transmitted during the first duration uses the same first transmission parameters, wherein the first transmission parameters include at least one of the following: transmission power, transmission filter, precoding method, antenna mapping method, and modulation method corresponding to the first uplink transmission.

[0224] In another possible implementation, at least some of the first uplink transmissions have different durations; or, the first durations of the multiple first uplink transmissions have the same duration.

[0225] In another possible implementation, if the terminal is scheduled or configured with uplink transmissions of a specified priority on the first serving cell, and / or if the terminal receives a specified instruction, the plurality of first uplink transmissions are not required to meet the predetermined requirements.

[0226] In another possible implementation, the terminal does not expect to be scheduled or configured with a specified priority uplink transmission on the first serving cell, and / or the terminal does not expect to receive a specified instruction.

[0227] In another possible implementation, the specified instructions include a dynamic slot format indicator (dynamic SFI) and / or an uplink conflict indicator (UL CI).

[0228] In another possible implementation, the receiving module 810 is further configured to receive capability indication information, the capability indication information being used to indicate at least one of the following: whether the multiple first uplink transmissions performed by the terminal on the first serving cell meet predetermined requirements; the shortest duration of the first duration; and the longest duration of the first duration.

[0229] In another possible implementation, the longest duration of the first duration indicated by the capability indication information is longer than the longest duration of the first duration indicated by the network-side device.

[0230] In another possible implementation, the first uplink transmission includes at least one of PUCCH, PUSCH, PRACH, and SRS.

[0231] In another possible implementation, the first uplink transmission includes continuous transmission of at least one channel and / or signal.

[0232] The uplink transmission device in this application embodiment can be a device, or a component, integrated circuit, or chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminal 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not impose specific limitations.

[0233] The uplink transmission device in this application embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this application embodiment does not specifically limit the specific operating system used.

[0234] The uplink transmission device provided in this application embodiment can realize the functions shown in Figures 2 to 3. Figure 6 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0235] Figure 9 This is a schematic diagram of the hardware structure of a terminal according to an embodiment of this application. The terminal 900 includes, but is not limited to, components such as: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, and a processor 910.

[0236] Those skilled in the art will understand that the terminal 900 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 910 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 9 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0237] It should be understood that, in this embodiment, the input unit 904 may include a graphics processing unit (GPU) 1041 and a microphone 9042. The GPU 9041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0238] In this embodiment, the radio frequency unit 901 receives downlink data from the network-side device and processes it for the processor 910; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0239] The memory 909 can be used to store software programs or instructions and various data. The memory 909 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 909 may include high-speed random access memory and non-volatile memory, which may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0240] Processor 910 may include one or more processing units; optionally, processor 910 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 910.

[0241] The processor 910 is configured to determine a first duration based on first information; and perform multiple first uplink transmissions on a first serving cell based on the first duration, wherein the multiple first uplink transmissions satisfy predetermined requirements; wherein the first information includes at least one of the following: the number of time units indicated by the network-side device; the number of repeated transmissions of the first uplink transmission indicated by the network-side device; the number of consecutive / quasi-consecutive time units occupied by at least one of the multiple first uplink transmissions; configured uplink / downlink resource configuration; the time domain resource length of the nominal transmission of a specified channel, wherein the specified channel includes the Physical Uplink Shared Channel (PUSCH) and / or the Physical Uplink Control Channel (PUCCH); specified time resources, wherein the specified time resources are the time domain resources corresponding to the demodulation reference signal (DMRS) determined for the first uplink transmission; and terminal capability information.

[0242] In this embodiment, a first duration is determined based on first information, and then multiple first uplink transmissions are performed on the first serving cell based on the first duration. The multiple first uplink transmissions meet predetermined requirements, thereby enabling the multiple first uplink transmissions to maintain phase continuity within the first duration. This solves the problem of the current lack of uplink transmission schemes that support joint DMRS channel estimation and improves uplink transmission performance.

[0243] like Figure 10 As shown in the illustration, this application also provides a network-side device 1000, which includes an antenna 1001, a radio frequency (RF) device 1002, and a baseband device 1003. The antenna 1001 is connected to the RF device 1002. In the uplink direction, the RF device 1002 receives information through the antenna 1001 and sends the received information to the baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes the information to be transmitted and sends it to the RF device 1002. The RF device 1002 processes the received information and then transmits it through the antenna 101.

[0244] The aforementioned frequency band processing device can be located in the baseband device 1003. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1003, which includes a processor 1004 and a memory 1005.

[0245] The baseband device 1003 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 10 As shown, one of the chips, for example, is a processor 1004, which is connected to a memory 1005 to call the program in the memory 1005 and execute the network device operation shown in the above method embodiment.

[0246] The baseband device 1003 may also include a network interface 1006 for exchanging information with the radio frequency device 1002, such as a common public radio interface (CPRI).

[0247] Specifically, the network-side device in this embodiment of the invention further includes: instructions or programs stored in memory 1005 and executable on processor 1004, wherein processor 1004 calls the instructions or programs in memory 1005 to execute... Figure 8 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0248] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described uplink transmission method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0249] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0250] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run network-side device programs or instructions to implement the various processes of the above-described uplink transmission method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0251] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0252] This application also provides a computer program product, which includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement the various processes of the above-described uplink transmission method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0253] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0254] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0255] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for uplink transmission, characterized in that, The method, executed by a terminal, includes: The first duration is determined based on the first information; Based on the first duration, multiple first uplink transmissions are performed on the first serving cell so that the network-side device performs joint demodulation reference signal (DMRS) channel estimation based on the received uplink transmissions. Wherein, the plurality of first uplink transmissions meet predetermined requirements, the predetermined requirements including phase continuity between the plurality of first uplink transmissions, and the difference between the transmission power corresponding to the plurality of first uplink transmissions is less than a first threshold. Wherein, if the first information includes the number of time units indicated by the network-side device, the first duration is determined by the number of time units indicated by the network-side device; Alternatively, if the first information includes at least two of the following, the first duration is determined by the minimum of at least two first time length values, each of which corresponds to a different piece of information in the first information: The number of repeated transmissions of the first uplink transmission as indicated by the network-side device; The time-domain resource length of the nominal transmission of the specified channel, wherein the specified channel includes the Physical Uplink Shared Channel (PUSCH) and / or the Physical Uplink Control Channel (PUCCH); Terminal capability information.

2. The method as described in claim 1, characterized in that, The pre-defined requirements also include at least one of the following: The multiple first uplink transmissions use the same antenna port; The multiple first uplink transmissions each correspond to the same transmission filter; The precoding methods corresponding to the multiple first uplink transmissions are the same; The power difference between the DMRS and the data transmission symbol corresponding to the plurality of first uplink transmissions is less than the second threshold. The channel for the second uplink transmission is determined based on the channel for the third uplink transmission. The second uplink transmission is any one of the plurality of first uplink transmissions, and the third uplink transmission is any other uplink transmission among the plurality of first uplink transmissions other than the second uplink transmission.

3. The method as described in claim 1, characterized in that, The start time of the first duration is the start time of the first uplink transmission; Alternatively, the start time of the first duration is the start time of the time unit in which the first uplink transmission occurs.

4. The method as described in claim 1, characterized in that, The first uplink transmission transmitted during the first duration uses the same first transmission parameters, wherein the first transmission parameters include at least one of the following: transmission power, transmission filter, precoding method, antenna mapping method, and modulation method corresponding to the first uplink transmission.

5. The method as described in claim 1, characterized in that, At least some of the first uplink transmissions in the plurality of first uplink transmissions correspond to different durations; or... The duration of the first duration corresponding to each of the multiple first uplink transmissions is the same.

6. The method as described in claim 1, characterized in that, The method further includes: Using the first duration as the time unit, the second transmission parameters corresponding to the first uplink transmission are adjusted, and the second transmission parameters include the transmission power of the first uplink transmission.

7. The method as described in claim 2, characterized in that, When the terminal is scheduled or configured with a specified priority uplink transmission on the first serving cell, and / or when the terminal receives a specified instruction, the plurality of first uplink transmissions are not required to meet the predetermined requirements.

8. The method as described in claim 7, characterized in that, The specified instructions include dynamic slot format indicator (dynamic SFI) and / or uplink conflict indicator (UL CI).

9. The method according to any one of claims 1-8, characterized in that, Multiple first uplink transmissions are performed on the first serving cell, including: Based on the length of the first duration, the frequency domain transmission positions corresponding to the plurality of first uplink transmissions are determined; Frequency hopping transmission is performed based on the frequency domain transmission location.

10. The method according to any one of claims 1-8, characterized in that, Multiple first uplink transmissions are performed on the first serving cell, including: Based on the length of the first duration, determine the transmission pattern of the DMRS for each of the first uplink transmissions; Transmission is performed based on the transmission pattern of the DMRS.

11. The method according to any one of claims 1-8, characterized in that, The method further includes: Send capability indication information, the capability indication information being used to indicate at least one of the following: Whether the multiple first uplink transmissions performed by the terminal in the first serving cell meet the predetermined requirements; The shortest time of the first duration; The longest duration of the first duration.

12. The method as described in claim 11, characterized in that, The longest duration indicated by the capability indication information is longer than the longest duration indicated by the network-side device.

13. The method as described in claim 1, characterized in that, The first uplink transmission includes at least one of PUCCH, PUSCH, Physical Random Access Channel (PRACH), and Sound Reference Signal (SRS).

14. The method as described in claim 1, characterized in that, The first uplink transmission includes continuous transmission of at least one channel and / or signal.

15. The method according to any one of claims 1-8, characterized in that, The method further includes: Under predetermined circumstances, perform the predetermined operation; The predetermined situation includes the terminal performing uplink transmission in the second serving cell during the first duration. The predetermined operation includes at least one of the following: Uplink transmissions performed on the second serving cell are discarded; Uplink transmissions maintained on the second serving cell; The first designated transmission performed on the first serving cell is discarded. The first designated transmission is an uplink transmission performed in an overlapping time unit, which is the time unit in which the first uplink transmission on the first serving cell overlaps with the uplink transmission on the second serving cell.

16. The method as described in claim 15, characterized in that, The predetermined situation also includes receiving a predetermined instruction and performing the predetermined operation, wherein the predetermined instruction is used to indicate that the uplink transmission time of the second serving cell reaches a predetermined time.

17. The method as described in claim 15, characterized in that, If the uplink transmission corresponding to the second serving cell is a transmission with a predetermined priority, or if the uplink transmission corresponding to the second serving cell is a predetermined channel or signal, then one of the following shall be performed: Uplink transmissions maintained on the second serving cell; The first designated transmission performed on the first serving cell is discarded. The first designated transmission is an uplink transmission performed in an overlapping time unit, which is the time unit in which the first uplink transmission on the first serving cell overlaps with the uplink transmission on the second serving cell.

18. The method as described in claim 15, characterized in that, If the uplink transmission corresponding to the second serving cell is not a transmission with a predetermined priority, and if the uplink transmission corresponding to the second serving cell is not a predetermined channel or channel, the uplink transmission performed in the second serving cell shall be discarded.

19. The method as described in claim 17 or 18, characterized in that, The transmission with the predetermined priority includes: a PUSCH with the predetermined priority and / or a PUCCH that transmits a hybrid automatic repeat request response (HARQ-ACK) corresponding to the predetermined priority codebook.

20. The method as described in claim 17 or 18, characterized in that, The predetermined channel or channel includes at least one of PRACH, the Physical Uplink Shared Channel MSG3 PUSCH carrying message 3, the Physical Uplink Shared Channel MSG-A PUSCH carrying message A, and SRS.

21. The method as described in claim 15, characterized in that, In the case where the predetermined operation is to maintain uplink transmission on the second serving cell, the first duration is divided into a first duration and a second duration based on the start time of the uplink transmission on the second serving cell, wherein the first uplink transmission between the first duration and the second duration is not required to meet the predetermined requirement; or, the first uplink transmission between the first duration and the second duration continues to meet the predetermined requirement.

22. The method as described in claim 15, characterized in that, In the case where the predetermined operation is the uplink transmission maintained on the second serving cell, the first duration is divided into a first part duration and a second part duration based on the start time of the uplink transmission on the second serving cell, wherein the first uplink transmission performed during the first part duration satisfies the predetermined requirement, and / or the first uplink transmission performed during the second part duration satisfies the predetermined requirement.

23. A method for uplink transmission, characterized in that, Performed by a network-side device, the method includes: The receiving terminal performs joint demodulation reference signal (DMRS) channel estimation based on the received uplink transmissions, based on a first duration and multiple first uplink transmissions performed on a first serving cell, wherein the first duration is determined according to first information; Wherein, the plurality of first uplink transmissions meet predetermined requirements, the predetermined requirements including phase continuity between the plurality of first uplink transmissions, and the difference between the transmission power corresponding to the plurality of first uplink transmissions is less than a first threshold. Wherein, if the first information includes the number of time units indicated by the network-side device, the first duration is determined by the number of time units indicated by the terminal through the network-side device; Alternatively, if the first information includes at least two of the following, the first duration is determined by the terminal using the minimum of at least two first time length values, each of which corresponds to a different piece of information in the first information: The number of repeated transmissions of the first uplink transmission as indicated by the network-side device; The time-domain resource length of the nominal transmission of the specified channel, wherein the specified channel includes the Physical Uplink Shared Channel (PUSCH) and / or the Physical Uplink Control Channel (PUCCH); Terminal capability information.

24. The method as described in claim 23, characterized in that, The pre-defined requirements also include at least one of the following: The multiple first uplink transmissions use the same antenna port; The multiple first uplink transmissions each correspond to the same transmission filter; The precoding methods corresponding to the multiple first uplink transmissions are the same; The power difference between the DMRS and the data transmission symbol corresponding to the plurality of first uplink transmissions is less than the second threshold. The channel for the second uplink transmission is determined based on the channel for the third uplink transmission. The second uplink transmission is any one of the plurality of first uplink transmissions, and the third uplink transmission is any other uplink transmission among the plurality of first uplink transmissions other than the second uplink transmission.

25. The method as described in claim 23, characterized in that, The start time of the first duration is the start time of the first uplink transmission; Alternatively, the start time of the first duration is the start time of the time unit in which the first uplink transmission occurs.

26. The method as described in claim 23, characterized in that, The first uplink transmission transmitted during the first duration uses the same first transmission parameters, wherein the first transmission parameters include at least one of the following: transmission power, transmission filter, precoding method, antenna mapping method, and modulation method corresponding to the first uplink transmission.

27. An uplink transmission device, characterized in that, The device includes: A determining module is used to determine a first duration based on the first information; The transmission module is configured to perform multiple first uplink transmissions on the first serving cell based on the first duration, so that the network-side device performs joint demodulation reference signal (DMRS) channel estimation based on the received uplink transmissions. Wherein, the plurality of first uplink transmissions meet predetermined requirements, the predetermined requirements including phase continuity between the plurality of first uplink transmissions, and the difference between the transmission power corresponding to the plurality of first uplink transmissions is less than a first threshold. Wherein, if the first information includes the number of time units indicated by the network-side device, the first duration is determined by the number of time units indicated by the network-side device; Alternatively, if the first information includes at least two of the following, the first duration is determined by the minimum of at least two first time length values, each of which corresponds to a different piece of information in the first information: The number of repeated transmissions of the first uplink transmission as indicated by the network-side device; The time-domain resource length of the nominal transmission of the specified channel, wherein the specified channel includes the Physical Uplink Shared Channel (PUSCH) and / or the Physical Uplink Control Channel (PUCCH); Terminal capability information.

28. The apparatus as claimed in claim 27, characterized in that, The pre-defined requirements also include at least one of the following: The multiple first uplink transmissions use the same antenna port; The multiple first uplink transmissions each correspond to the same transmission filter; The precoding methods corresponding to the multiple first uplink transmissions are the same; The power difference between the DMRS and the data transmission symbol corresponding to the plurality of first uplink transmissions is less than the second threshold. The channel for the second uplink transmission is determined based on the channel for the third uplink transmission. The second uplink transmission is any one of the plurality of first uplink transmissions, and the third uplink transmission is any other uplink transmission among the plurality of first uplink transmissions other than the second uplink transmission.

29. The apparatus as claimed in claim 27, characterized in that, The start time of the first duration is the start time of the first uplink transmission; Alternatively, the start time of the first duration is the start time of the time unit in which the first uplink transmission occurs.

30. The apparatus as claimed in claim 27, characterized in that, The first uplink transmission transmitted during the first duration uses the same first transmission parameters, wherein the first transmission parameters include at least one of the following: transmission power, transmission filter, precoding method, antenna mapping method, and modulation method corresponding to the first uplink transmission.

31. The apparatus as claimed in claim 27, characterized in that, At least some of the first uplink transmissions in the plurality of first uplink transmissions correspond to different durations; or... The duration of the first duration corresponding to each of the multiple first uplink transmissions is the same.

32. The apparatus as claimed in claim 27, characterized in that, The transmission module is further configured to adjust the second transmission parameters corresponding to the first uplink transmission using the first duration as the time unit, wherein the second transmission parameters include the transmission power of the first uplink transmission.

33. The apparatus as claimed in claim 28, characterized in that, When the terminal is scheduled or configured with a specified priority uplink transmission on the first serving cell, and / or when the terminal receives a specified instruction, the plurality of first uplink transmissions are not required to meet the predetermined requirements.

34. The apparatus as claimed in claim 33, characterized in that, The specified instructions include dynamic slot format indicator (dynamic SFI) and / or uplink conflict indicator (UL CI).

35. The apparatus according to any one of claims 27-34, characterized in that, The transmission module is used to determine the frequency domain transmission position corresponding to the plurality of first uplink transmissions based on the length of the first duration; and to perform frequency hopping transmission based on the frequency domain transmission position.

36. The apparatus according to any one of claims 27-34, characterized in that, The transmission module is used to determine the transmission pattern of the DMRS for each of the first uplink transmissions based on the length of the first duration; and to perform transmission based on the transmission pattern of the DMRS.

37. The apparatus according to any one of claims 27-34, characterized in that, The transmission module is further configured to transmit capability indication information, the capability indication information being used to indicate at least one of the following: Whether the multiple first uplink transmissions performed by the terminal in the first serving cell meet the predetermined requirements; The shortest time of the first duration; The longest duration of the first duration.

38. The apparatus as claimed in claim 37, characterized in that, The longest duration indicated by the capability indication information is longer than the longest duration indicated by the network-side device.

39. The apparatus as claimed in claim 27, characterized in that, The first uplink transmission includes at least one of PUCCH, PUSCH, PRACH, and SRS.

40. The apparatus as claimed in claim 27, characterized in that, The first uplink transmission includes continuous transmission of at least one channel and / or signal.

41. The apparatus according to any one of claims 27-34, characterized in that, The transmission module is also used to perform a predetermined operation under predetermined conditions; The predetermined situation includes the terminal performing uplink transmission in the second serving cell during the first duration. The predetermined operation includes at least one of the following: Uplink transmissions performed on the second serving cell are discarded; Uplink transmissions maintained on the second serving cell; The first designated transmission performed on the first serving cell is discarded. The first designated transmission is an uplink transmission performed in an overlapping time unit, which is the time unit in which the first uplink transmission on the first serving cell overlaps with the uplink transmission on the second serving cell.

42. The apparatus as claimed in claim 41, characterized in that, The predetermined situation also includes receiving a predetermined instruction and performing the predetermined operation, wherein the predetermined instruction is used to indicate that the uplink transmission time of the second serving cell reaches a predetermined time.

43. The apparatus as claimed in claim 41, characterized in that, If the uplink transmission corresponding to the second serving cell is a transmission with a predetermined priority, or if the uplink transmission corresponding to the second serving cell is a predetermined channel or signal, then one of the following shall be performed: Uplink transmissions maintained on the second serving cell; The first designated transmission performed on the first serving cell is discarded. The first designated transmission is an uplink transmission performed in an overlapping time unit, which is the time unit in which the first uplink transmission on the first serving cell overlaps with the uplink transmission on the second serving cell.

44. The apparatus as claimed in claim 41, characterized in that, If the uplink transmission corresponding to the second serving cell is not a transmission with a predetermined priority, and if the uplink transmission corresponding to the second serving cell is not a predetermined channel or channel, the uplink transmission performed in the second serving cell shall be discarded.

45. The apparatus as claimed in claim 43 or 44, characterized in that, The transmission with the predetermined priority includes: a PUSCH with the predetermined priority and / or a PUCCH that transmits a hybrid automatic repeat request response (HARQ-ACK) corresponding to the predetermined priority codebook.

46. ​​The apparatus as claimed in claim 43 or 44, characterized in that, The predetermined channel or channel includes at least one of the following: Physical Random Access Channel (PRACH), Physical Uplink Shared Channel (MSG3 PUSCH) carrying message 3, Physical Uplink Shared Channel (MSG-A PUSCH) carrying message A, and Sounding Reference Signal (SRS).

47. The apparatus as claimed in claim 41, characterized in that, In the case where the predetermined operation is to maintain uplink transmission on the second serving cell, the first duration is divided into a first duration and a second duration based on the start time of the uplink transmission on the second serving cell, wherein the first uplink transmission between the first duration and the second duration does not meet the predetermined requirement; or, the first uplink transmission between the first duration and the second duration continues to meet the predetermined requirement.

48. The apparatus as claimed in claim 41, characterized in that, In the case where the predetermined operation is the uplink transmission maintained on the second serving cell, the first duration is divided into a first part duration and a second part duration based on the start time of the uplink transmission on the second serving cell, wherein the first uplink transmission performed during the first part duration satisfies the predetermined requirement, and / or the first uplink transmission performed during the second part duration satisfies the predetermined requirement.

49. An uplink transmission device, characterized in that, The device includes: The receiving module is configured to receive multiple first uplink transmissions made by the terminal on a first serving cell based on a first duration, in order to perform joint demodulation reference signal (DMRS) channel estimation based on the received uplink transmissions, wherein the first duration is determined according to first information; Wherein, the plurality of first uplink transmissions meet predetermined requirements, the predetermined requirements including phase continuity between the plurality of first uplink transmissions, and the difference between the transmission power corresponding to the plurality of first uplink transmissions is less than a first threshold. Wherein, if the first information includes the number of time units indicated by the network-side device, the first duration is determined by the number of time units indicated by the network-side device; Alternatively, if the first information includes at least two of the following, the first duration is determined by the terminal using the minimum of at least two first time length values, each of which corresponds to a different piece of information in the first information: The number of repeated transmissions of the first uplink transmission as indicated by the network-side device; The time-domain resource length of the nominal transmission of the specified channel, wherein the specified channel includes the Physical Uplink Shared Channel (PUSCH) and / or the Physical Uplink Control Channel (PUCCH); Terminal capability information.

50. The apparatus as claimed in claim 49, characterized in that, The pre-defined requirements include at least one of the following: The multiple first uplink transmissions use the same antenna port; The phases of the plurality of first uplink transmissions are continuous; The difference between the transmission power corresponding to the plurality of first uplink transmissions is less than a first threshold. The multiple first uplink transmissions each correspond to the same transmission filter; The precoding methods corresponding to the multiple first uplink transmissions are the same; The power difference between the DMRS and the data transmission symbol corresponding to the plurality of first uplink transmissions is less than the second threshold. The channel for the second uplink transmission is determined based on the channel for the third uplink transmission. The second uplink transmission is any one of the plurality of first uplink transmissions, and the third uplink transmission is any other uplink transmission among the plurality of first uplink transmissions other than the second uplink transmission.

51. The apparatus as claimed in claim 49, characterized in that, At least some of the first uplink transmissions in the plurality of first uplink transmissions correspond to different durations; or... The duration of the first duration corresponding to each of the multiple first uplink transmissions is the same.

52. The apparatus as claimed in claim 50, characterized in that, When the terminal is scheduled or configured with a specified priority uplink transmission on the first serving cell, and / or when the terminal receives a specified instruction, the plurality of first uplink transmissions are not required to meet the predetermined requirements.

53. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the uplink transmission method as described in any one of claims 1 to 22.

54. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the uplink transmission method as described in any one of claims 23 to 26.

55. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the uplink transmission method as described in any one of claims 1-22, or implement the steps of the uplink transmission method as described in any one of claims 23-26.

Images