Method, terminal, and network-side device for uplink transmission

Abstract

The embodiments of the present application disclose a method for uplink transmission, a terminal, and a network side device, which belong to the technical field of wireless communication. The method includes: a terminal determines a first duration according to first information; and performs a plurality of first uplink transmissions on a first serving cell according to the first duration, where the plurality of first uplink transmissions satisfy a scheduling requirement.

Description

Technical Field

[0001] (Cross - reference to related applications) This invention claims the priority of a Chinese patent application with the application number 202110048896.0 and the invention title "Method for Uplink Transmission, Terminal and Network - side Device", which was filed with the Chinese Patent Office on January 14, 2021, and all the contents of this application are incorporated into the present invention by reference.

[0002] This application belongs to the technical field of wireless communication, and specifically relates to a method for uplink transmission, a terminal, and a network - side device.

Background Art

[0003] In wireless communication technology, if a network - side device can perform joint demodulation reference signal (DMRS) channel estimation based on multiple uplink transmissions, the performance of uplink reception can be effectively improved.

[0004] However, there is a lack of uplink transmission means that can support joint DMRS channel estimation.

Summary of the Invention

Problems to be Solved by the Invention

[0005] Embodiments of this application provide a method for uplink transmission, a terminal, and a network - side device that can solve the problem of the lack of uplink transmission means for supporting joint DMRS channel estimation.

Means for Solving the Problems

[0006] In a first aspect, there is an uplink transmission method executed by a terminal, including: determining a first duration according to first information; and performing a plurality of first uplink transmissions on a first serving cell based on the first duration, where the plurality of first uplink transmissions meet a scheduling requirement, and the first information includes at least one of 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 / pseudo-consecutive time units occupied by at least one of the plurality of first uplink transmissions, the arranged uplink / downlink resource configuration, the time-domain resource length of the nominal transmission of a designated channel including a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH, a designated time resource which is a corresponding time-domain resource for determining a demodulation reference signal DMRS for the first uplink transmission, and at least one item of terminal capability information. An uplink transmission method is provided.

[0007] In a second aspect, there is an uplink transmission method executed by a network-side device, including receiving a plurality of first uplink transmissions performed by a terminal on a first serving cell based on a first duration, where the plurality of first uplink transmissions meet a scheduling requirement, the first duration is determined according to first information, and the first information includes at least one of 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 / pseudo-consecutive time units occupied by at least one of the plurality of first uplink transmissions, the arranged uplink / downlink resource configuration, the time-domain resource length of the nominal transmission of a designated channel including a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH, a designated time resource which is a corresponding time-domain resource for determining a demodulation reference signal DMRS for the first uplink transmission, and at least one item of terminal capability information. An uplink transmission method is provided.

[0008] In a third aspect, a determination module used to determine a first duration based on first information, and a transmission module used to perform a plurality of first uplink transmissions on a first serving cell based on the first duration are provided. The plurality of first uplink transmissions satisfy a scheduling request, and the first information includes at least one of 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 / pseudo-consecutive time units occupied by at least one of the plurality of first uplink transmissions, the arranged uplink / downlink resource configuration, the time-domain resource length of the nominal transmission of a designated channel including a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH, a designated time resource which is a corresponding time-domain resource for determining a demodulation reference signal DMRS for the first uplink transmission, and at least one item of terminal capability information. An uplink transmission apparatus is provided.

[0009] In a fourth aspect, a receiving module used for a terminal to receive a plurality of first uplink transmissions performed on a first serving cell based on a first duration is provided. The plurality of first uplink transmissions satisfy a scheduling request, the first duration is determined by first information, and the first information includes at least one of 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 / pseudo-consecutive time units occupied by at least one of the plurality of first uplink transmissions, the arranged uplink / downlink resource configuration, the time-domain resource length of the nominal transmission of a designated channel including a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH, a designated time resource which is a corresponding time-domain resource for determining a demodulation reference signal DMRS for the first uplink transmission, and at least one item of terminal capability information. An uplink transmission apparatus is provided.

[0010] In a fifth aspect, there is provided a terminal including a processor, a memory, and a program or instructions stored in the memory and executable by the processor, wherein when the program or instructions are executed by the processor, steps of the method according to the first aspect are realized.

[0011] In a sixth aspect, there is provided a network-side device including a processor, a memory, and a program or instructions stored in the memory and executable by the processor, wherein when the program or instructions are executed by the processor, steps of the method according to the second aspect are realized.

[0012] In a seventh aspect, there is provided a readable storage medium storing a program or instructions, wherein when the program or instructions are executed by a processor, steps of the method according to the first aspect are realized or steps of the method according to the second aspect are realized.

[0013] In an eighth aspect, there is provided a chip including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor executes a program or instructions of a network-side device to realize the method according to the first aspect or the method according to the second aspect.

[0014] In a ninth aspect, there is provided a computer program product including a processor, a memory, and a program or instructions stored in the memory and executable by the processor, wherein when the program or instructions are executed by the processor, steps of the method according to the first aspect are realized or steps of the method according to the second aspect are realized.

Advantages of the Invention

[0015] In an embodiment of the present application, the terminal determines a first duration based on first information, and further performs a plurality of first uplink transmissions that satisfy a scheduling request on a first serving cell based on the first duration. As a result, the plurality of first uplink transmissions can continuously maintain power and phase within the first duration. Furthermore, the network-side device can perform joint DMRS channel estimation based on the received uplink transmission, effectively improving the uplink transmission performance.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2a

Figures 2b - 2e

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Figure 4b

Figure 5a

Figure 5b

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Embodiments for Carrying Out the Invention

[0017] In the following, while referring to the drawings in the embodiments of the present application, the technical solution means in the embodiments of the present application will be clearly described. Naturally, the described embodiments are not all embodiments of the present application, but some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art shall fall within the protection scope of the present application.

[0018] The terms "first", "second", etc. in the specification and claims of the present application are not for describing a specific order or sequence, but for distinguishing similar objects. It should be understood that such terms may be replaced with each other in appropriate cases so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein. Also, the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited. For example, the first object may be one or a plurality. In the specification and claims, "and / or" indicates at least one of the connected objects, and the symbol " / " generally indicates that the related objects before and after are in an "or" relationship.

[0019] It should be noted that the technology described in the embodiments according to the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system. Furthermore, for example, it can 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 the embodiments according to the present application can generally be used interchangeably. The described technology can be used in the above-mentioned systems and radio communication technologies, or in other systems and radio communication technologies. However, in the following description, for the sake of illustration, the New Radio (NR) system is described, and the NR term is used in most of the following descriptions. These technologies are applicable beyond the NR system, for example, also applicable to the 6th Generation (6G) communication system.

[0020] FIG. 1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. Here, the terminal 11 may also be referred to as a terminal device or a user equipment (UE), and may be a mobile phone, a tablet personal computer, a laptop computer (also called a notebook computer), a personal digital assistant (PDA), a personal handyphone system, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), a wearable device, or an in-vehicle device (VUE), a pedestrian terminal (PUE), etc. The wearable device includes a bracelet, earphones, glasses, etc. It is not necessary to explain that the specific type of the terminal 11 is not limited in the embodiments according to the present application. The network-side device 12 may be a base station or a core network. Among them, the base station may be referred to as 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, wireless local area network (WLAN) access point, wireless fidelity (WiFi) node, transmitting and receiving point (TRP), or other appropriate terms in the field. If the same technical effect can be achieved, the base station is not limited to a specific technical term. In the embodiments according to the present application, only the base station in the NR system is taken as an example, but it is not necessary to explain that the specific type of the base station is not limited.

[0021] In the following, with reference to the drawings, the technical means provided in the embodiments of the present application will be described in detail by way of specific embodiments and their use cases.

[0022] FIG. 2 shows a schematic flowchart of an uplink transmission method 200 provided in an exemplary embodiment of the present application. The method 200 may be executed by a terminal, for example, it may be executed by hardware and / or software installed in the terminal. Here, the method 200 may include the following steps S210 and S220.

[0023] In S210, a first duration is determined according to first information.

[0024] Here, the first duration is the time required to maintain the continuity of power and / or phase when the terminal performs one or more uplink transmissions. In this embodiment, the first information may include at least one of the following (1)-(7).

[0025] (1) The number of time units indicated by the network-side device.

[0026] Here, the time unit may be a slot, a sub-slot, a symbol, a subframe, a radio frame, etc.

[0027] For example, assuming that the first duration is determined based only on (1), the first duration may 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, for example, 2 slots, then the first duration is 2 slots.

[0028] It should be noted that the "time unit" mentioned in the following embodiments may all be a slot, a sub-slot, a symbol, a subframe, a radio frame, etc., and will not be described in detail again below.

[0029] (2) The number of times of repeated transmission of the first uplink transmission indicated by the network-side device.

[0030] Here, assuming that the number of times of repeated transmission of the first uplink transmission indicated by the network-side device is N, and the first duration is determined based only on (2), the first duration may be the number of time units corresponding to N times of repeated transmission of the first uplink transmission.

[0031] (3) The number of consecutive / pseudo-consecutive time units occupied by at least one of the plurality of first uplink transmissions.

[0032] Here, the consecutive / pseudo-consecutive satisfies at least one of the following requirements (3a)-(3e). (3a) The gap time on the time-domain resource is not greater than the third threshold. (3b) The gap time on the time-domain resource is not greater than the threshold number of scheduled symbols. (3c) The number of gaps on the time-domain resource is not greater than the fourth threshold. (3d) The number of gaps on the time-domain resource is not greater than the longest time of the first duration notified by the terminal. (3e) When there is no gap in the time-domain resource, that is, when there is no gap, it is considered consecutive.

[0033] In the above (3a)-(3e), the interval may be located at an intermediate position or other position on the time domain resource. The time domain resource may 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 an intermediate position of the one first uplink transmission, etc. When the time domain resource is a time domain resource corresponding to a plurality of first uplink transmissions, the interval may be located between two adjacent first uplink transmissions, or may be located at any one of the plurality of first uplink transmissions, without limitation here.

[0034] Also, the magnitude of the above interval, the third threshold, the symbol number threshold, and the fourth threshold may be arranged on the network side or may be defined by a protocol, without limitation here.

[0035] In one implementation, when the first duration is determined based on the number of consecutive / pseudo-consecutive time units occupied by at least one of the plurality of first uplink transmissions shown in the above (3), when performing a plurality of first uplink transmissions based on the first duration later, the first uplink transmissions performed within the number of consecutive / pseudo-consecutive time units may use frequency domain resources at the same position.

[0036] (4) Arranged uplink / downlink resource allocation.

[0037] Here, the uplink / downlink resource allocation may be arranged on the network side. For example, it includes the arrangement of uplink symbols (U), the arrangement of downlink symbols (D), or the arrangement of flexible symbols (S), the time division duplex (TDD) uplink / downlink slot arrangement, etc.

[0038] (5) The time domain resource length of the nominal transmission of the designated channel.

[0039] Here, the time domain resource length may be greater than 1 slot, but is not limited thereto. The specified channel includes a Physical Uplink Shared Channel (PUSCH) and / or a Physical Uplink Control Channel (PUCCH).

[0040] (6) Specified time resource.

[0041] Here, the specified time resource is a corresponding time domain resource for determining a Demodulation Reference Signal (DMRS) for the one or more first uplink transmissions. In this embodiment, the DMRS may include at least one of DMRS bundling, DMRS sharing, or DMRS in other DMRS optimization transmission methods. Also, the above "time domain resource corresponding to the DMRS" may be understood as the time domain resource for determining DMRS transmission, rather than the time domain resource actually occupied by the DMRS.

[0042] As an example, assuming that the first duration is determined based only on (6), when DMRS bundling and / or DMRS sharing are used in the plurality of uplink transmissions, and / or optimization of DMRS transmission is performed in the time domain / frequency domain resources, the terminal may consider that the corresponding time resource is the first duration.

[0043] (7) Terminal capability information.

[0044] Here, when the terminal determines the first duration based on the terminal capability information, it may be understood that when the network-side device does not indicate the first duration, the terminal determines the first duration based on the terminal capability information, and when the first duration indicated by the network-side device exceeds the first duration determined based on the terminal capability information, the terminal uses the first duration determined based on the terminal capability information as the first duration.

[0045] For example, when the duration of a plurality of consecutive first uplink transmissions exceeds the capability of the terminal (which may be understood as the user), the terminal is not required to maintain the power and phase continuity of these plurality of uplink transmissions, or when the power and phase continuity of a plurality of uplink transmissions is ensured by the network-side device, that is, when a plurality of consecutive uplink transmissions that are not expected to be scheduled or arranged by the user have a first duration that exceeds the user's capability.

[0046] It is necessary to explain that the first duration may be determined based on any one of (1)-(7), or may be determined based on two or more of (1)-(7). Here, when the first duration is determined based on two or more of (1)-(7), the first duration may be any one of the following (a)-(b).

[0047] (a) The specified value among at least two values of the first time length.

[0048] Here, the specified value is the maximum value or the minimum value, and each value of the first time length corresponds to different information in the first information. For example, there are two values for the value of the first time length, such as the value of the first length corresponding to the time domain resource length of the nominal transmission of the specified channel, and the value of the second length corresponding to the specified time resource. Assuming that the value of the first length is greater than the value of the second length, if the specified value is the maximum value, the first duration is the value of the first length corresponding to the time domain resource length of the nominal transmission of the specified channel.

[0049] (b) At least two common parts between the second times.

[0050] Here, each of the second times corresponds to different information in the first information. In this embodiment, by the second time corresponding to different information in the first information, the second time may be a time length or a time range, and is not limited here. For example, when the second time is a time range, assuming that the second time is two such as (a1, a2) and (b1, b2), the first duration may be the common part between (a1, a2) and (b1, b2).

[0051] Based on the description of the above determination method of the first duration, hereinafter, with reference to FIGS. 2b-2e, the determination of the first duration will be further described. Here, "U" represents an uplink time unit, "D" represents a downlink time unit, and "S" represents a flexible time unit.

[0052] As shown in FIG. 2b, assuming that the current frame configuration is "DDDSUDDSUU", the second times are respectively the times corresponding to (2) and (4) above, and the first uplink transmission PUSCH is repeatedly transmitted on the uplink slot (that is, "U" in FIG. 2b), the first duration may be the time unit corresponding to the first "U" shown in FIG. 2b.

[0053] In addition, the network-side device may further instruct that the number of transmission repetitions is used as the unit of the first duration. For example, the time length corresponding to two repeated transmissions is used as the first duration, and the frame configuration is considered.

[0054] As shown in FIG. 2c, in the "DDDSU" frame configuration, the symbol configuration in the 14 symbols of the "S" slot includes two uplink symbols, that is, the last two symbols. And the terminal performs transmission on the 2 + 14 uplink symbols, that is, the last two symbols of the "S" slot shown in FIG. 2c and the 14 symbols of the "U" slot. In this case, the terminal can use the (2 + 14) symbols, which are consecutive uplink symbols, as the first duration. This behavior may be instructed by the network-side device or predefined.

[0055] Or, when the network-side device arranges 2 slots as the first duration but the actual first duration is less than 2 slots, the first duration is the minimum (min) of (2 slots, the number of consecutive symbols).

[0056] Or, as shown in FIG. 2d, when the first duration arranged by the network-side device is 1 slot and each slot may include two nominal transmissions of PUSCH (that is, "Nominal PUSCH repetition" shown in FIG. 2d), and the time length of the repeated transmission is 2 + 14 symbols, the first duration may be the maximum (max) of (1 slot, the number of consecutive symbols).

[0057] Alternatively, as shown in Fig. 2e, the length of the nominal PUSCH repeated transmission arranged by the network-side device is 1 slot (14 symbols), and due to the division of the downlink transmission, one nominal repeated transmission within 1 slot is divided into two actual repeated transmissions. The first duration may be preset to be equal to or greater than the length of the nominal PUSCH repeated transmission, or may be indicated by the network. However, the actual number of consecutive symbols is 4 or 7, and thus the first duration may be the minimum value among (1 slot / nominal PUSCH length, number of consecutive symbols). Alternatively, it may be understood as the common part between the duration of the nominal repeated transmission and the number of consecutive symbols.

[0058] The following points should be noted. (1) The above PUSCH is just one possible uplink transmission, that is, the method for determining the first duration shown in Figs. 2b - 2e above can be similarly applied to other uplink transmissions such as PUCCH. (2) The above PUSCH may be a repeated transmission or a PUSCH / PUCCH transmission over multiple slots, and the multiple slots may be consecutive or non - consecutive. (3) The means described in (1), (2), (3), and (5) included in the above first information may be implemented independently. For example, for an FDD frequency band (paired spectrum), continuous uplink and downlink transmissions can be performed.

[0059] In S220, based on the first duration, a plurality of first uplink transmissions that meet the scheduling requirements are performed on the first serving cell.

[0060] Here, the fact that the plurality of first uplink transmissions satisfy the scheduled requirement within the first duration may be understood as the power and phase of the plurality of first uplink transmissions supported by the terminal being continuous. Therefore, the network-side device can perform joint DMRS channel estimation based on the plurality of first uplink transmissions to improve the uplink transmission performance. In this embodiment, the scheduled requirement may be configured by the network-side device or specified by a protocol, and is not limited here.

[0061] In the uplink transmission method described above, the first uplink transmission may include at least one of PUCCH, PUSCH, Physical Random Access Channel (PRACH), and Sounding Reference Signal (SRS).

[0062] Also, the first uplink transmission may include continuous transmission of at least one type of channel and / or signal. For example, the first uplink transmission may include only PUCCH, or may include PUCCH, PUSCH, etc. simultaneously, and is not limited here.

[0063] In the embodiments of this application, the terminal determines the first duration according to the first information, and further performs a plurality of first uplink transmissions that satisfy the scheduled requirement on the first serving cell based on the first duration. As a result, the plurality of first uplink transmissions can continuously maintain power and phase within the first duration. Furthermore, the network-side device can perform joint DMRS channel estimation based on the received uplink transmissions to effectively improve the uplink transmission performance.

[0064] FIG. 3 shows a schematic flowchart of an uplink transmission method 300 provided in an exemplary embodiment of the present application. The method 300 may be executed by a terminal, for example, it may be executed by the hardware and / or software installed in the terminal. Here, the method 300 may include the following steps S310, S320, and S330.

[0065] In S310, a first duration is determined according to first information.

[0066] Here, for the implementation procedure in S310, reference may be made to the relevant description in the above method 200. In order not to repeat the description, the detailed description is omitted here.

[0067] In S320, based on the first duration, a plurality of first uplink transmissions that meet the scheduling requirements are performed on the first serving cell.

[0068] Here, in addition to being able to refer to the relevant description in the above method 200 for the implementation procedure of S320, as a possible implementation form, when the terminal performs a plurality of first uplink transmissions based on the first duration, the start time of the first duration may be the start time of the first uplink transmission, or the start time of the first duration is the start time of the time unit where the first uplink transmission is located.

[0069] Also, the first uplink transmissions transmitted within the first duration use the same first transmission parameters, that is, the terminal does not change the transmission power according to the received Transmit Power Control (TPC) command, and does not adjust the transmission power according to the pathloss reference signal (RS) indicated by the network, etc.

[0070] Here, the first transmission parameter may include at least one of the transmission power, transmission filter, precoding method, antenna mapping method, modulation method, and transmission waveform corresponding to the first uplink transmission. Depending on the first uplink signal, the signal waveform may be different. For example, when the first uplink transmission is PUCCH format 0 / 1 / 3 / 4, the signal waveform is considered to be a Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) waveform. When the first uplink transmission is PUCCH format 2, the signal waveform is considered to be a Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) waveform. When the first uplink transmission is PRACH, the signal waveform is considered to be a DFT-S-OFDM waveform.

[0071] As an example, assuming that the first transmission parameter is the transmission power, within the first duration, the terminal does not change the transmission power. Even if the pathloss measured by the terminal changes, the terminal does not adjust the transmission power within the first duration. Or, even if the terminal receives a Transmit Power Control (TPC) command, it does not adjust the transmission power according to the TPC command within the first duration. Or, even if the terminal receives an update instruction for an updated pathloss reference RS, it does not adjust the transmission power according to the measurement value of the updated reference RS within the first duration.

[0072] Also, when it is necessary to adjust the transmission parameter during the uplink transmission procedure, taking the first duration as the time unit, the second transmission parameter corresponding to the first uplink transmission can be adjusted. The second transmission parameter may include at least one of the transmission power, transmission filter, precoding method, antenna mapping method, and modulation method of the first uplink transmission.

[0073] For example, after the terminal completes the first uplink transmission within a first duration, the transmission power may be adjusted according to the updated pathloss measurement, TPC command, power control reference signal, etc.

[0074] It should be noted that the first transmission parameter and the second transmission parameter may be the same or different, and are not restricted here.

[0075] In yet another implementation form, the time lengths of the first durations corresponding to at least some of the plurality of first uplink transmissions are different, or the time lengths of the first durations corresponding to each of the plurality of first uplink transmissions are the same.

[0076] Furthermore, in this embodiment, the scheduled request may include at least one of the following (1)-(7).

[0077] (1) The channel of a second uplink transmission, which is any one of the plurality of first uplink transmissions, is determined by the channel of a third uplink transmission, which is an uplink transmission other than the second uplink transmission among the plurality of first uplink transmissions.

[0078] Here, (1) above may be understood as that for the plurality of first uplink transmissions, the channel of one uplink transmission may be determined based on the channels of other uplink transmissions. In this embodiment, the "determination" may be understood as inference, prediction, etc.

[0079] As an example, assuming that the plurality of first uplink channels include a first uplink channel c1, a second uplink channel c2, a third 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 third uplink channel c3 are known, the channel of the fourth uplink channel c4 can be determined based on the channels corresponding to at least one of the first uplink channel c1, the second uplink channel c2, and the third uplink channel c3.

[0080] (2) Use the same antenna port in the plurality of first uplink transmissions.

[0081] (3) The phases between the plurality of first uplink transmissions are continuous.

[0082] (4) The difference between the transmission powers corresponding to each of the plurality of first uplink transmissions is smaller than a first threshold.

[0083] Here, the first threshold may be set by the network-side device or may be defined by a protocol, for example, detaP1 or the like.

[0084] (5) The transmission filters corresponding to each of the plurality of first uplink transmissions are the same.

[0085] (6) The precoding methods corresponding to each of the plurality of first uplink transmissions are the same.

[0086] (7) The difference between the DMRS and the data transmission symbol corresponding to each of the plurality of first uplink transmissions is smaller than a second threshold.

[0087] Here, the data transmission symbol may be understood as other information symbols other than the DMRS, such as useful information symbols and the like. The difference may be a power difference, and the second threshold value may be arranged by the network-side device or may be defined by a protocol. For example, it may be 0 dB, 3 dB, 4.77 dB, detaP2, etc. In this case, that the plurality of first uplink transmissions meet the scheduled requirements may mean that the power difference between the DMRS and the useful symbol corresponding to each of the plurality of first uplink transmissions is 0 dB or less than detaP2, and this embodiment does not limit here.

[0088] It can be understood that in this embodiment, the scheduled requirements may include one or more of the above (1)-(7), and are not limited here.

[0089] It should be noted that when the terminal schedules or arranges uplink transmissions with specified priorities on the first serving cell, and / or when the terminal receives a specified command, the plurality of first uplink transmissions do not necessarily have to meet the scheduled requirements. Here, the specified priority may be a high priority or the like, and the specified command may include a dynamic slot format indication (dynamic SFI) and / or an uplink conflict indication (UL CI).

[0090] As an example, when the terminal schedules or arranges a PUSCH with a high priority and a PUCCH for transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) of a high-priority codebook on the first serving cell, and thus when the plurality of first uplink transmissions do not meet the first duration, similarly, the plurality of first uplink transmissions do not have to meet the scheduled requirements, such as the continuity of power and phase.

[0091] In this case, in the uplink transmission method according to this embodiment, the terminal does not desire to schedule or arrange uplink transmission with a specified priority on the first serving cell, and / or the terminal does not desire to receive a specified command.

[0092] Furthermore, in one implementation, when the terminal performs a plurality of first uplink transmissions that satisfy a scheduling request on the first serving cell based on a first duration, different transmission methods may be selected, and the following will be described according to different examples. (Example 1)

[0093] Assuming that the terminal needs to perform frequency hopping transmission, taking the first duration as the time domain granularity, then based on the length of the first duration, determine the frequency domain transmission positions corresponding to the plurality of first uplink transmissions, and finally perform frequency hopping transmission of the plurality of first uplink transmissions based on the frequency domain transmission positions.

[0094] For example, when the network instructs the terminal to perform frequency hopping transmission, the terminal may determine the frequency domain transmission position according to the length of the first duration. Specifically, the terminal transmits on four first durations and two frequency domain positions. In this way, the frequency hopping method of the terminal is as shown in Figure 4a below, and the frequency domain transmission positions of the first durations at different start times may be different. In other words, the first durations at different frequency domain positions may be different. (Example 2)

[0095] Assuming that the terminal needs to perform uplink transmission by DMRS, the terminal determines the transmission pattern of the DMRS for each first uplink transmission based on the length of the first duration, and then may perform the plurality of first uplink transmissions based on the transmission pattern of the DMRS.

[0096] For example, the terminal determines the number of DMRS symbols within the first duration, or the number of DMRS symbols in each slot / nominal (actual) PUSCH repetition within the first duration, based on the number of slots and / or symbols of the first duration.

[0097] As an example, in related technical means, the DMRS pattern is determined by the number of PUSCH transmission symbols. When multiple first uplink (here mainly referring to PUSCH and / or PUCCH) transmissions within the first duration support meeting the above scheduling requirements, joint channel estimation for multiple transmissions can be supported, and it is conceivable to reduce the overhead of DMRS and improve the coding rate of transmission.

[0098] In this embodiment, as shown in FIG. 4b, when the first durations are different, the number of DMRS symbols included in each slot may be different. In one PUSCH transmission with only one slot in the first duration, the DMRS is 4 symbols. In one PUSCH transmission where the first duration is 2 slots, each slot includes 2 DMRS symbols.

[0099] Or, in the transmission of PUSCH where the network-side device arranges another (additional) DMRS (with a larger number of DMRS symbols), when the number of continuously transmitted PUSCH symbols is greater than the threshold M, PUSCH transmission is performed in the no additional DMRS mode. That is, the terminal implicitly determines the DMRS pattern based on the time length of the above first duration.

[0100] It is necessary to explain that whether the terminal activates the function of determining the DMRS transmission pattern for each of the first uplink transmissions according to the first duration may be arranged by the network side.

[0101] In S330, capability indication information is transmitted.

[0102] Here, by transmitting the capability indication information, the consistency of understanding between the terminal and the network-side device can be achieved, and the uplink transmission performance can be ensured. In this embodiment, the capability indication information is for indicating at least one of the following (1)-(3). (1) Whether a plurality of first uplink transmissions performed by the terminal on the first serving cell meet the scheduling requirements. (2) The shortest time of the first duration. (3) The longest time of the first duration.

[0103] In one implementation, the longest time of the first duration indicated by the capability indication information is greater than or equal to the longest time of the first duration indicated by the network-side device.

[0104] In this embodiment, furthermore, the network can perform joint channel estimation using the DMRS of multiple slots.

[0105] FIG. 5a shows a schematic flowchart of an uplink transmission method 500 provided in an exemplary embodiment of the present application. The method 500 may be executed by a terminal, for example, by hardware and / or software installed in the terminal. Here, the method 500 may include the following steps S510 and S520.

[0106] In S510, a first duration is determined according to first information.

[0107] Here, for the implementation procedure of S510, reference may be made to the relevant descriptions in the above methods 200 and 300. To avoid repeated description, detailed description is omitted here.

[0108] In S520, based on the first duration, a plurality of first uplink transmissions that meet the scheduling requirements are performed on the first serving cell.

[0109] Here, regarding the implementation procedure of S520, in addition to being able to refer to the relevant descriptions in the above methods 200 and 300, as a possible implementation form, a plurality of serving cells are arranged for the terminal, and when the terminal starts uplink transmission on the second serving cell within the first duration, a scheduled operation is executed. That is, when the terminal is executing S520 and at the same time meets the scheduled situation, a scheduled operation is executed. The uplink transmission on the second serving cell may be obtained by the network-side device performing a scheduling instruction according to instruction information such as upper-layer signaling (for example, Radio Resource Control (RRC) signaling, etc.), Medium Access Control-Control Element (MAC CE), Physical downlink control channel (PDCCH), etc.

[0110] The scheduled situation may include that the terminal is performing uplink transmission on the second serving cell within the first duration. The uplink transmission may include, but is not limited to, PUSCH, PUCCH, SRS, etc.

[0111] The scheduled operation includes at least one of the following (1)-(3). (1) Abandon the uplink transmission being performed on the second serving cell. (2) Hold the uplink transmission being performed on the second serving cell. In contrast, the plurality of first uplink transmissions being performed by the terminal on the first serving cell are not required to meet the scheduled request. (3) Abandon the first specified transmission being performed on the first serving cell, where the first specified transmission is an uplink transmission performed in an overlapping time unit, and the overlapping time unit is the time unit when the first uplink transmission on the first serving cell and the uplink transmission on the second serving cell overlap.

[0112] In one implementation, the planned situation may further include receiving a planned instruction and executing the planned operation, where the planned instruction is for instructing that the transmission time of the uplink transmission of the second serving cell has reached the planned time. The planned time may be arranged by the network side or specified by a protocol. As an example, the terminal may execute the above planned operation after receiving the time duration T of the uplink transmission of the second serving cell indicated by the network side device.

[0113] In this embodiment, in addition to the implementation forms listed above, when the uplink transmission corresponding to the second serving cell is a transmission with a planned priority, or when the uplink transmission corresponding to the second serving cell is a planned channel or signal, any one of the following (1) or (2) is executed. (1) Hold the uplink transmission being performed on the second serving cell. (2) Abandon the first specified transmission being performed on the first serving cell, where the first specified transmission is an uplink transmission performed in an overlapping time unit, and the overlapping time unit is the time unit in which the first uplink transmission in the first serving cell and the uplink transmission in the second serving cell overlap.

[0114] Here, the transmission with a planned priority includes a PUSCH having a planned priority and / or a PUCCH for transmitting a Hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to a planned priority codebook. The planned channel or signal includes at least one of a Physical Random Access Channel (PRACH), a Physical Uplink Shared Channel carrying Message 3 (MSG3 PUSCH), a Physical Uplink Shared Channel carrying Message A (MSG-A PUSCH), and an SRS.

[0115] On the other hand, when the uplink transmission corresponding to the second serving cell is not a transmission with a scheduled priority, and when the uplink transmission corresponding to the second serving cell is not a scheduled channel or signal, the uplink transmission being performed in the second serving cell is discarded.

[0116] It should be noted that, that is, in the above embodiment, when the scheduled operation is to hold the uplink transmission being performed on the second serving cell described above, based on the start time of the uplink transmission being performed on the second serving cell, the first duration is divided into a first partial duration and a second partial duration, and the first uplink transmission performed between the first partial duration and the second partial duration does not satisfy the scheduled request, or the first uplink transmission performed in the first partial duration and the second partial duration continuously satisfies the scheduled request.

[0117] On the other hand, when the scheduled operation is to hold the uplink transmission being performed on the second serving cell described above, based on the start time of the uplink transmission being performed on the second serving cell, the first duration is divided into a first partial duration and a second partial duration, and the first uplink transmission performed in the first partial duration satisfies the scheduled request, and / or the first uplink transmission performed in the second partial duration satisfies the scheduled request.

[0118] Based on the description of the above method 500, the above embodiment will be further described below with reference to FIG. 5b.

[0119] Assume that a network-side device arranges a plurality of serving cells, such as a first serving cell and a second serving cell, for a terminal, and the plurality of serving cells are arranged in a Carrier Aggregation (CA) or Dual Connectivity (DC) manner.

[0120] Here, when the terminal may need to perform transmissions simultaneously on multiple serving cells, for example, as shown in FIG. 5b, when the terminal is performing a plurality of first uplink transmissions within a first duration on the first serving cell serving cell#1 and starts an uplink transmission on the second serving cell serving cell#2, the terminal may not be able to meet the scheduled request within the first duration from the start time when the uplink transmission on serving cell#2 is started. Therefore, the terminal may perform a scheduled operation shown in the above method 500, for example, at least one of the following (1)-(3). (1) Abandon the uplink transmission being performed on the second serving cell. (2) Hold the uplink transmission being performed on the second serving cell. In contrast, the plurality of first uplink transmissions being performed by the terminal on the first serving cell are not required to meet the scheduled request. (3) Abandon the first specified transmission being performed on the first serving cell, where the first specified transmission is an uplink transmission performed in an overlapping time unit, and the overlapping time unit is the time unit when the first uplink transmission on the first serving cell and the uplink transmission on the second serving cell overlap.

[0121] In one implementation, there is no requirement to meet the scheduled request between the first partial 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 partial uplink transmission of serving cell#1 before the end time of slot / symbol n - 1, and the scheduled request is continuously met within the duration of the first partial uplink transmission and / or the scheduled request is continuously met within the duration of the second partial uplink transmission.

[0122] In another implementation, when the uplink transmission of serving cell#2 is a high-priority transmission or a specific channel / signal, (2) or (3) during the scheduled operation is executed; otherwise, (1) is executed. The high-priority transmission includes a high-priority PUSCH and a PUCCH that transmits a HARQ-ACK corresponding to a high-priority codebook.

[0123] In yet another implementation, the terminal executes the scheduled operation after receiving the time duration T of the uplink transmission of serving cell#2 indicated by the network. It should be noted that the network-side device does not trigger the uplink transmission of serving cell#2 shown in FIG. 5b above within the time duration T before the transmission of one first duration of serving cell#1.

[0124] FIG. 6 shows a schematic flowchart of an uplink transmission method 600 provided in an exemplary embodiment of the present application. The method 600 may be executed by a network-side device, for example, by hardware and / or software implemented in the network-side device. Here, the method 600 may include the following step S610.

[0125] In S610, the network-side device receives a plurality of first uplink transmissions performed by the terminal on a first serving cell based on a first duration. The plurality of first uplink transmissions satisfy a scheduling request, and the first duration is determined by first information.

[0126] Here, the first information includes at least one of the following (1)-(7). (1) The number of time units indicated by the network-side device. (2) The number of repeated transmissions of the first uplink transmission indicated by the network-side device. (3) The number of consecutive / pseudo-consecutive time units occupied by at least one of the plurality of first uplink transmissions. (4) The configured uplink / downlink resource configuration. (5) The nominal transmission time domain resource length of the designated channel including the physical uplink shared channel PUSCH and / or the physical uplink control channel PUCCH. (6) The designated time resource which is the corresponding time domain resource for determining the demodulation reference signal DMRS for the first uplink transmission. (7) Terminal capability information.

[0127] In a possible implementation form, the scheduled request includes at least one of the following (1)-(7). (1) The channel of the second uplink transmission which is any one of the plurality of first uplink transmissions is determined by the channel of the third uplink transmission which is the other uplink transmission other than the second uplink transmission among the plurality of first uplink transmissions. (2) The same antenna port is used for the plurality of first uplink transmissions. (3) The phases among the plurality of first uplink transmissions are continuous. (4) The difference between the transmission powers corresponding to each of the plurality of first uplink transmissions is smaller than the first threshold. (5) The transmission filters corresponding to each of the plurality of first uplink transmissions are the same. (6) The precoding methods corresponding to each of the plurality of first uplink transmissions are the same. (7) The difference between the DMRS and the data transmission symbol corresponding to each of the plurality of first uplink transmissions is smaller than the second threshold.

[0128] In another possible implementation form, the continuous / pseudo - continuous satisfies at least one of the following requirements: the interval time on the time domain resource is not greater than the third threshold, the interval time on the time domain resource is not greater than the scheduled symbol number threshold, the number of intervals on the time domain resource is not greater than the fourth threshold, the number of intervals on the time domain resource is not greater than the longest time of the first duration notified by the terminal, and there is no interval on the time domain resource.

[0129] In yet another possible implementation, the first uplink transmission performed within the continuous / pseudo - continuous time unit uses frequency - domain resource at the same position.

[0130] In yet another possible implementation, the first duration is either a specified value among at least two first - time - length values, or a common part of at least two second - time intervals. Each value of the first - time length corresponds to different information in the first information respectively, and each of the second times corresponds to different information in the first information respectively.

[0131] In yet another possible implementation, the specified value is the maximum value or the minimum value.

[0132] In yet 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 where the first uplink transmission is located.

[0133] In yet another possible implementation, the first uplink transmission transmitted within the first duration uses the same first transmission parameter. The first transmission parameter includes at least one of the transmission power, transmission filter, precoding method, antenna mapping method, and modulation method corresponding to the first uplink transmission.

[0134] In yet another possible implementation, the time lengths of the first durations corresponding to at least some of the plurality of first uplink transmissions are different, or the time lengths of the first durations corresponding to each of the plurality of first uplink transmissions are the same.

[0135] In yet another possible implementation, when the terminal schedules or arranges an uplink transmission with a specified priority on the first serving cell, and / or when the terminal receives a specified command, the plurality of first uplink transmissions are not required to meet the scheduling request.

[0136] In yet another possible implementation, the terminal does not desire to schedule or arrange uplink transmissions with a specified priority on the first serving cell, and / or the terminal does not desire to receive a specified command.

[0137] In yet another possible implementation, the specified command includes a dynamic slot format indication (dynamic SFI) and / or an uplink collision indication (UL CI).

[0138] In yet another possible implementation, the method further includes receiving capability indication information, where the capability indication information is for indicating at least one of whether a plurality of first uplink transmissions performed by the terminal on the first serving cell meet a scheduling requirement, the shortest duration of the first duration, and the longest duration of the first duration.

[0139] In yet another possible implementation, the longest duration of the first duration indicated by the capability indication information is greater than the longest duration of the first duration indicated by the network-side device.

[0140] In yet another possible implementation, the first uplink transmission includes at least one of PUCCH, PUSCH, PRACH, and SRS.

[0141] In yet another possible implementation, the first uplink transmission includes continuous transmission of at least one type of channel and / or signal.

[0142] Regarding the implementation procedures of the above various implementations given in this embodiment, it is necessary to explain that reference may be made to the relevant descriptions in Methods 200, 300, and 500. To avoid repeated explanations, detailed explanations are omitted here.

[0143] In this embodiment, by receiving 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 can continuously maintain a phase within the first duration, thereby solving the problem of lacking an uplink transmission means that supports joint DMRS channel estimation and improving uplink transmission performance.

[0144] It is necessary to explain that the execution entity of the uplink transmission method provided in the embodiments of this application may be an uplink transmission device or a control module for executing the uplink transmission method in the uplink transmission device. In the embodiments of this application, taking the uplink transmission device executing the uplink transmission method as an example, the uplink transmission device provided in the embodiments of this application will be described.

[0145] FIG. 7 shows a block diagram of an uplink transmission device 700 provided in an exemplary embodiment of this application. The device 700 includes a determination module 710 used to determine a first duration according to first information, and a transmission module 720 used to perform a plurality of first uplink transmissions on a first serving cell based on the first duration. The first information includes at least one item of the number of time units indicated by a network-side device, the number of repeated transmission times of the first uplink transmission indicated by the network-side device, the number of consecutive / pseudo-consecutive time units occupied by at least one of the plurality of first uplink transmissions, the arranged uplink / downlink resource allocation, the nominal transmission time domain resource length of a designated channel including a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH, a designated time resource that is a corresponding time domain resource for determining a demodulation reference signal DMRS for the first uplink transmission, and terminal capability information.

[0146] In one possible implementation, the plurality of first uplink transmissions meet a scheduling requirement, where the scheduling requirement includes that the channel of a second uplink transmission, which is any one of the plurality of first uplink transmissions, is determined by the channel of a third uplink transmission, which is an uplink transmission other than the second uplink transmission among the plurality of first uplink transmissions; using the same antenna port for the plurality of first uplink transmissions; the phases among the plurality of first uplink transmissions being continuous; the difference between the transmission powers corresponding to the plurality of first uplink transmissions being smaller than a first threshold; the transmission filters corresponding to the plurality of first uplink transmissions being the same; the precoding methods corresponding to the plurality of first uplink transmissions being the same; and the difference between the DMRS and the data transmission symbol corresponding to each of the plurality of first uplink transmissions being smaller than a second threshold.

[0147] In another possible implementation, the continuous / pseudo - continuous 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 scheduled 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 time of the first duration notified by the terminal; and there is no interval on the time - domain resource.

[0148] In another possible implementation, the first uplink transmissions performed within the continuous / pseudo - continuous time unit use frequency - domain resources at the same position.

[0149] In another possible implementation, the first duration is either a specified value among at least two first time - length values or any item of the common parts among at least two second time intervals. 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.

[0150] In another possible implementation, the specified value is the maximum value or the minimum value.

[0151] 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 where the first uplink transmission is located.

[0152] In another possible implementation, the first uplink transmission transmitted within the first duration uses the same first transmission parameter, and the first transmission parameter includes at least one of the transmission power, transmission filter, precoding method, antenna mapping method, and modulation method corresponding to the first uplink transmission.

[0153] In another possible implementation, the time lengths of the first durations corresponding to at least some of the plurality of first uplink transmissions are different, or the time lengths of the first durations corresponding to each of the plurality of first uplink transmissions are the same.

[0154] In another possible implementation, the transmission module 720 is further used to adjust the second transmission parameter including the transmission power of the first uplink transmission corresponding to the first uplink transmission with the first duration as the time unit.

[0155] In another possible implementation, when the terminal schedules or arranges an uplink transmission with a specified priority on the first serving cell, and / or when the terminal receives a specified command, the plurality of first uplink transmissions are not required to meet the scheduling request.

[0156] In another possible implementation, the terminal does not desire to schedule or arrange an uplink transmission with a specified priority on the first serving cell, and / or the terminal does not desire to receive a specified command.

[0157] In another possible implementation, the specified command includes a dynamic slot format indication (dynamic SFI) and / or an uplink collision indication (UL CI).

[0158] In another possible implementation, the transmission module 720 is used to execute the steps of determining a frequency domain transmission position corresponding to the plurality of first uplink transmissions based on the length of the first duration, and performing frequency hopping transmission based on the frequency domain transmission position.

[0159] In another possible implementation, the transmission module 720 is used to execute the steps of determining a transmission pattern of DMRS for each of the first uplink transmissions based on the length of the first duration, and transmitting based on the transmission pattern of DMRS.

[0160] In another possible implementation, the transmission module 720 is further used to transmit capability indication information, where the capability indication information is for indicating at least one of whether a plurality of first uplink transmissions performed by the terminal on the first serving cell meet a scheduling request, the shortest time of the first duration, and the longest time of the first duration.

[0161] In another possible implementation, the longest time of the first duration indicated by the capability indication information is greater than the longest time of the first duration indicated by the network-side device.

[0162] In another possible implementation, the first uplink transmission includes at least one of PUCCH, PUSCH, PRACH, and SRS.

[0163] In another possible implementation, the first uplink transmission includes continuous transmission of at least one type of channel and / or signal.

[0164] In another possible implementation, the transmission module 720 is further used to execute a scheduled operation in a scheduled situation, where the scheduled situation includes that the terminal is performing uplink transmission on a second serving cell within the first duration. The scheduled operation includes at least one of the following: aborting the uplink transmission being performed on the second serving cell, maintaining the uplink transmission being performed on the second serving cell, and aborting the first specified transmission being performed on the first serving cell. The first specified transmission is an uplink transmission performed in overlapping time units, and the overlapping time units are the time units during which the first uplink transmission on the first serving cell overlaps with the uplink transmission on the second serving cell.

[0165] In another possible implementation, the scheduled situation further includes receiving a scheduled instruction for indicating that the transmission time of the uplink transmission of the second serving cell has reached the scheduled time, and executing the scheduled operation.

[0166] In another possible implementation, when the uplink transmission corresponding to the second serving cell is a transmission with scheduled priority, or when the uplink transmission corresponding to the second serving cell is a scheduled channel or signal, one of the following operations is executed: maintaining the uplink transmission being performed on the second serving cell, and aborting the first specified transmission being performed on the first serving cell. The first specified transmission is an uplink transmission performed in overlapping time units, and the overlapping time units are the time units during which the first uplink transmission on the first serving cell overlaps with the uplink transmission on the second serving cell.

[0167] In another possible implementation, when the uplink transmission corresponding to the second serving cell is not a transmission with scheduled priority and is not a scheduled channel or signal, the uplink transmission being performed on the second serving cell is aborted.

[0168] In another possible implementation, the transmission of the scheduled priority includes a Physical Uplink Shared Channel (PUSCH) with a scheduled priority and / or a Physical Uplink Control Channel (PUCCH) that transmits a Hybrid Automatic Repeat reQuest - ACK (HARQ - ACK) corresponding to a codebook of the scheduled priority.

[0169] In another possible implementation, the scheduled channel or signal includes at least one of a Physical Random Access Channel (PRACH), a Physical Uplink Shared Channel MSG3 PUSCH that carries Message 3, a Physical Uplink Shared Channel MSG - A PUSCH that carries Message A, and a Sounding Reference Signal (SRS).

[0170] In another possible implementation, when the scheduled operation is to maintain the uplink transmission being performed on the second serving cell as described above, based on the start time of the uplink transmission being performed on the second serving cell, the first duration is divided into a first partial duration and a second partial duration, and the first uplink transmission performed between the first partial duration and the second partial duration does not meet the scheduled requirement, or the first uplink transmission performed in the first partial duration and the second partial duration continuously meets the scheduled requirement.

[0171] In another possible implementation, when the scheduled operation is to maintain the uplink transmission being performed on the second serving cell as described above, based on the start time of the uplink transmission being performed on the second serving cell, the first duration is divided into a first partial duration and a second partial duration, and the first uplink transmission performed in the first partial duration meets the scheduled requirement, and / or the first uplink transmission performed in the second partial duration meets the scheduled requirement.

[0172] FIG. 8 shows an uplink transmission device 800 provided in an exemplary embodiment of the present application. The device 800 includes a receiving module 810 used to receive a plurality of first uplink transmissions performed on a first serving cell based on a first duration determined by a terminal according to first information. The first information includes at least one of 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 / pseudo-consecutive time units occupied by at least one of the plurality of first uplink transmissions, the arranged uplink / downlink resource allocation, the nominal transmission time-domain resource length of a designated channel including a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH, a designated time resource which is a corresponding time-domain resource for determining a demodulation reference signal DMRS for the first uplink transmission, and at least one item of terminal capability information.

[0173] In another possible implementation, the plurality of first uplink transmissions meet a scheduling requirement, and the scheduling requirement includes that a channel of a second uplink transmission, which is any one of the plurality of first uplink transmissions, is determined by a channel of a third uplink transmission, which is an uplink transmission other than the second uplink transmission among the plurality of first uplink transmissions; using the same antenna port for the plurality of first uplink transmissions; the phases among the plurality of first uplink transmissions being continuous; the difference between the transmission powers corresponding to each of the plurality of first uplink transmissions being less than a first threshold; the transmission filters corresponding to each of the plurality of first uplink transmissions being the same; the precoding methods corresponding to each of the plurality of first uplink transmissions being the same; and the difference between the DMRS and the data transmission symbol corresponding to each of the plurality of first uplink transmissions being less than a second threshold.

[0174] In another possible implementation, the continuity / pseudo-continuity 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 scheduled 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 maximum duration of the first duration notified by the terminal, and there is no interval on the time-domain resource.

[0175] In another possible implementation, the first uplink transmission performed within the continuity / pseudo-continuity time unit uses frequency-domain resources at the same position.

[0176] In another possible implementation, the first duration is either a specified value among at least two first time length values or a common part of at least two second time intervals. Each value of the first time length corresponds to different information in the first information, and each of the second times corresponds to different information in the first information.

[0177] In another possible implementation, the specified value is the maximum value or the minimum value.

[0178] 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 where the first uplink transmission is located.

[0179] In another possible implementation, the first uplink transmission transmitted within the first duration uses the same first transmission parameter. The first transmission parameter includes at least one of the transmission power, transmission filter, precoding method, antenna mapping method, and modulation method corresponding to the first uplink transmission.

[0180] In another possible implementation, the time lengths of the first durations corresponding to at least some of the plurality of first uplink transmissions are different, or the time lengths of the first durations corresponding to each of the plurality of first uplink transmissions are the same.

[0181] In another possible implementation, when the terminal schedules or arranges uplink transmissions with a specified priority on the first serving cell, and / or when the terminal receives a specified command, the plurality of first uplink transmissions are not required to meet the scheduled request.

[0182] In another possible implementation, the terminal does not desire to schedule or arrange uplink transmissions with a specified priority on the first serving cell, and / or the terminal does not desire to receive a specified command.

[0183] In another possible implementation, the specified command includes a dynamic slot format indication (dynamic SFI) and / or an uplink collision indication (UL CI).

[0184] In another possible implementation, the receiving module 810 is further used to receive capability indication information, and the capability indication information is for indicating at least one of whether a plurality of first uplink transmissions performed by the terminal on the first serving cell meet the scheduled request, the shortest duration of the first duration, and the longest duration of the first duration.

[0185] In another possible implementation, the longest duration of the first duration indicated by the capability indication information is greater than the longest duration of the first duration indicated by the network-side device.

[0186] In another possible implementation, the first uplink transmission includes at least one of PUCCH, PUSCH, PRACH, and SRS.

[0187] In another possible implementation, the first uplink transmission includes continuous transmission of at least one type of channel and / or signal.

[0188] The uplink transmission device in the embodiments of this application may be a device, or may be a component, integrated circuit, or chip in a terminal. The device may be a portable terminal or a non-portable terminal. By way of example, the portable terminal may include the types of terminal 11 listed above, but is not limited thereto. The non-portable terminal may be a server, Network Attached Storage (NAS), personal computer (PC), television (TV), automated teller machine, or kiosk, etc., and is not specifically limited in the embodiments of this application.

[0189] The uplink transmission device in the embodiments of this application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, and is not specifically limited in the embodiments of this application.

[0190] The uplink transmission device provided in the embodiments of this application can implement each step implemented in the method embodiments of FIGS. 2 to 6, and achieve similar technical effects. For the sake of brevity and to avoid repeated description, detailed description is omitted here.

[0191] FIG. 9 is a schematic diagram of the hardware configuration for implementing the terminal in the embodiments of this application. The terminal 900 includes elements such as a high-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, etc., but is not limited thereto.

[0192] Those skilled in the art can understand that the terminal 900 may further include a power source (e.g., a battery) for supplying power to each component. The power source may be logically connected to the processor 910 by a power management system, and in this way, the power management system realizes functions such as charge and discharge management and power consumption management. The structure of the terminal shown in FIG. 9 does not limit the terminal. The terminal may include more or fewer components than shown, or a combination of some components, or different component arrangements, and detailed descriptions are omitted here.

[0193] In the embodiments according to the present application, it should be understood that the input unit 904 may include a graphics processing unit (GPU) 9041 that processes still image or video image data acquired by an image acquisition device (e.g., a camera) in a video acquisition mode or an image acquisition mode, and a microphone 9042. The display unit 906 may include a display panel 9061, and the display panel 9061 may be arranged in the form of a liquid crystal display, an organic light-emitting diode, etc. 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 two parts: a touch detection device and a touch controller. The other input devices 9072 may include a physical keyboard, function buttons (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, an operation lever, but are not limited thereto, and detailed descriptions are omitted here.

[0194] In the embodiments of the present application, after receiving downlink data from the network-side device, the high-frequency unit 901 processes it with the processor 910 and also transmits uplink data to the network-side device. Usually, the high-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.

[0195] Memory 909 can be used to store software programs or commands and various data. Memory 909 may mainly include an area for storing programs or commands that can store an operating system, applications or commands required for at least one function (such as a voice playback function, an image playback function, etc.), and a data storage area. Also, Memory 909 may include a high-speed random access memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices can be mentioned.

[0196] Processor 910 may include one or more processing units. Optionally, the Processor 910 can integrate an application processor that mainly processes an operating system, a user interface, applications or commands, etc., and a modem processor that mainly processes wireless communication such as a baseband processor. It can be understood that the above modem processor may not be integrated into the Processor 910.

[0197] Here, the processor 910 is used to execute the steps of determining a first duration based on first information, and performing a plurality of first uplink transmissions on a first serving cell based on the first duration. The plurality of first uplink transmissions satisfy a scheduling request, and the first information includes at least one of 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 / pseudo-consecutive time units occupied by at least one of the plurality of first uplink transmissions, the arranged uplink / downlink resource allocation, the nominal transmission time domain resource length of a designated channel including a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH, a designated time resource which is a corresponding time domain resource for determining a demodulation reference signal DMRS for the first uplink transmission, and at least one item of terminal capability information.

[0198] In this embodiment, a first duration is determined based on first information, and further, a plurality of first uplink transmissions are performed on a first serving cell based on the first duration. The plurality of first uplink transmissions satisfy a scheduling request. Thereby, the plurality of first uplink transmissions can continuously maintain a phase within the first duration, thereby solving the problem of lacking an uplink transmission means for supporting an associated DMRS channel estimation and improving uplink transmission performance.

[0199] As shown in FIG. 10, the embodiment of the present application further provides a network-side device. The network-side device 1000 includes an antenna 1001, a radio frequency device 1002, and a baseband device 1003. The antenna 1001 is connected to the radio frequency device 1002. In the uplink direction, the radio frequency device 1002 receives information via the antenna 1001 and transmits 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 transmits it to the radio frequency device 1002. The radio frequency device 1002 processes the received information and then transmits it via the antenna 1001.

[0200] The above frequency band processing device may be in the baseband device 1003. The method executed by the network side device in the above embodiment can be realized by the baseband device 1003, and the baseband device 1003 includes a processor 1004 and a memory 1005.

[0201] The baseband device 1003 may include, for example, at least one baseband board on which a plurality of chips are installed. As shown in FIG. 10, one of the chips is, for example, connected to the memory 1005 to call a program in the memory 1005, and is the processor 1004 that executes the operations of the network device shown in the above method embodiment.

[0202] The baseband device 1003 may further include a network interface 1006 for communicating with the high-frequency device 1002. The interface is, for example, a common public radio interface (abbreviated as CPRI).

[0203] Specifically, the network side device in the embodiment of the present invention further includes a command or program stored in the memory 1005 and operable by the processor 1004. The processor 1004 calls the command or program in the memory 1005 to execute the method executed by each module shown in FIG. 8, and can achieve the same technical effect. To avoid repeated description, detailed description is omitted here.

[0204] The embodiment of the present application stores a program or instruction. When the program or instruction is executed by a processor, each step of the above uplink transmission method embodiment can be realized, and a readable storage medium that can achieve the same technical effect is further provided. To avoid repeated description, detailed description is omitted here.

[0205] Here, the processor is the processor in the terminal described in the above embodiments. The readable storage medium includes, for example, computer-readable storage media such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0206] The embodiments of the present application include a processor and a communication interface. The communication interface is coupled to the processor. The processor executes a program or instructions of a network-side device to implement each step of the uplink transmission method embodiment described above, and further provides a chip that can achieve similar technical effects. To avoid repeated description, detailed description is omitted here.

[0207] It should be understood that the chip described in the embodiments of the present application may also be referred to as a system-on-chip, a chip system, or a system-on-chip, etc.

[0208] The embodiments of the present application include a processor, a memory, and a program or instructions stored in the memory and executable by the processor. When the program or instructions are executed by the processor, each step of the uplink transmission method embodiment described above is implemented, and further provides a computer program product that can achieve similar technical effects. To avoid repeated description, detailed description is omitted here.

[0209] It should be noted that in this specification, the terms "comprising", "consisting of" or any other variations are intended to include non-exclusive inclusion, whereby a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly stated or elements inherent to such a process, method, article or apparatus. Unless otherwise specified, the elements limited by the phrase "comprising one..." do not exclude the further existence of the same other elements in the process, method, article or apparatus comprising the element. Also, it should be pointed out that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order illustrated or considered, and may also include performing functions substantially simultaneously or in the reverse order according to such functions. For example, the described method may be performed in an order different from that described, and various steps may be added, omitted, or combined. Also, the features described with reference to any example may be combined in other examples.

[0210] From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above examples can be realized in the form of a combination of software and the necessary common hardware platform. Naturally, it may also be realized by hardware, but in many cases the former is a more preferred embodiment. Based on such an understanding, the technical solution of this application, in essence or the part contributing to the prior art, can be implemented in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes a plurality of instructions for causing a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the embodiments of this application.

[0211] The embodiments of the present application have been described above with reference to the drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely exemplary and not restrictive. Based on the suggestions of the present application, many forms that those skilled in the art can make without departing from the spirit of the present application and the scope of protection of the claims all belong to the scope of protection of the present application.

Claims

1. An uplink transmission method executed by a terminal, comprising: determining a first duration according to first information; and performing a plurality of first uplink transmissions on a first serving cell based on the first duration. The first information includes: 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 arranged uplink / downlink resource allocation; the time domain resource length of the nominal transmission of a designated channel including a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH; at least one item of terminal capability information transmitted by the terminal to the network-side device via capability indication information. The plurality of first uplink transmissions satisfy a scheduling requirement, and the scheduling requirement includes that the power and phase are continuous among the plurality of first uplink transmissions. The first duration is determined by a designated value among at least two values of the first time lengths, each value of the first time length corresponds to different information in the first information, or the first duration is determined by the number of time units indicated by the network-side device. The uplink transmission method.

2. The scheduling requirement further includes: the channel of a second uplink transmission, which is any one of the plurality of first uplink transmissions, is determined by the channel of a third uplink transmission, which is an uplink transmission other than the second uplink transmission among the plurality of first uplink transmissions; using the same antenna port for the plurality of first uplink transmissions; the difference between the transmission powers corresponding to the plurality of first uplink transmissions is smaller than a first threshold; the transmission 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; at least one item of the difference between the DMRS and the data transmission symbol corresponding to each of the plurality of first uplink transmissions being smaller than a second threshold. The method according to Claim 1.

3. 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 where the first uplink transmission is located, or The first uplink transmission to be performed within the first duration uses the same first transmission parameter, and the first transmission parameter includes at least one of transmission power, transmission filter, precoding method, antenna mapping method, and modulation method corresponding to the first uplink transmission. Or, The duration lengths of at least some of the first uplink transmissions among the plurality of first uplink transmissions are different, or The method according to claim 1, wherein the duration lengths of the first durations corresponding to each of the plurality of first uplink transmissions are the same.

4. The method according to claim 1, further comprising the step of adjusting a second transmission parameter including the transmission power of the first uplink transmission corresponding to the first uplink transmission, with the first duration as the time unit.

5. When the terminal schedules or arranges an uplink transmission with a specified priority on the first serving cell, and / or when the terminal receives a specified command, the plurality of first uplink transmissions are not required to satisfy the scheduling request. The method according to claim 2, wherein the specified command includes a dynamic slot format indication dynamic SFI and / or an uplink collision indication UL CI.

6. The step of performing a plurality of first uplink transmissions on the first serving cell includes Determining a frequency domain transmission position corresponding to the plurality of first uplink transmissions based on the length of the first duration; and Performing frequency hopping transmission based on the frequency domain transmission position, or The step of performing a plurality of first uplink transmissions on the first serving cell includes Determining a DMRS transmission pattern of each first uplink transmission based on the length of the first duration; and Transmitting based on the DMRS transmission pattern. The method according to any one of claims 1 to 5.

7. The method further includes the step of transmitting the capability indication information, The capability indication information is Whether the plurality of first uplink transmissions performed by the terminal on the first serving cell satisfy a scheduling request, The shortest time of the first duration, For indicating at least one of the longest times of the first duration. The method according to any one of claims 1-5, wherein the maximum duration of the first duration indicated by the ability indication information is greater than the maximum duration of the first duration indicated by the network-side device.

8. The first uplink transmission includes at least one of PUCCH, PUSCH, physical random access channel PRACH, and sounding reference signal SRS, or The method according to claim 1, wherein the first uplink transmission includes continuous transmission of at least one type of channel and / or signal.

9. Further including the step of performing a scheduled operation in a scheduled situation, The scheduled situation includes that the terminal is performing uplink transmission on a second serving cell within the first duration, The scheduled operation is Discarding the uplink transmission being performed on the second serving cell, Maintaining the uplink transmission being performed on the second serving cell, Discarding the first specified transmission being performed on the first serving cell, where the first specified transmission is an uplink transmission performed in overlapping time units, and the overlapping time units are the time units when the first uplink transmission in the first serving cell and the uplink transmission in the second serving cell overlap. The method according to any one of claims 1-5.

10. The scheduled situation further includes receiving a scheduled indication for indicating that the transmission time of the uplink transmission of the second serving cell has reached the scheduled time and performing the scheduled operation, or When the uplink transmission corresponding to the second serving cell is a transmission with a scheduled priority, or when the uplink transmission corresponding to the second serving cell is a scheduled channel or signal, Maintaining the uplink transmission being performed on the second serving cell, Performing any one of discarding the first specified transmission being performed on the first serving cell, where the first specified transmission is an uplink transmission performed in overlapping time units, and the overlapping time units are the time units when the first uplink transmission in the first serving cell and the uplink transmission in the second serving cell overlap, Or The method according to claim 9, wherein when the uplink transmission corresponding to the second serving cell is not a transmission with a scheduled priority and the uplink transmission corresponding to the second serving cell is not a scheduled channel or signal, the uplink transmission being performed in the second serving cell is discarded.

11. The transmission with the scheduled priority includes a PUSCH having a scheduled priority and / or a PUCCH that transmits a hybrid automatic repeat request acknowledgment HARQ-ACK corresponding to a codebook with a scheduled priority. Or, The scheduled channel or signal includes at least one of a PRACH, a physical uplink shared channel MSG3 PUSCH carrying message 3, a physical uplink shared channel MSG-A PUSCH carrying message A, and an SRS, according to the method of claim 10.

12. When the scheduled operation is to hold the uplink transmission being performed on the second serving cell described above, based on the start time of the uplink transmission being performed on the second serving cell, the first duration is divided into a first partial duration and a second partial duration, and the first uplink transmission performed between the first partial duration and the second partial duration is not required to satisfy the scheduled request, or the first uplink transmission performed in the first partial duration and the second partial duration continuously satisfies the scheduled request. Or, When the scheduled operation is to hold the uplink transmission being performed on the second serving cell described above, based on the start time of the uplink transmission being performed on the second serving cell, the first duration is divided into a first partial duration and a second partial duration, the first uplink transmission performed in the first partial duration satisfies the scheduled request, and / or the first uplink transmission performed in the second partial duration satisfies the scheduled request, according to the method of claim 9.

13. An uplink transmission method executed by a network-side device, comprising: receiving a plurality of first uplink transmissions performed on a first serving cell based on a first duration determined by a terminal according to first information; The first information is 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 configured uplink / downlink resource configuration. The nominal transmission time-domain resource length of a designated channel including a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH including at least one item of terminal capability information transmitted by the terminal to the network-side device via capability indication information the plurality of first uplink transmissions satisfy a scheduling requirement, the scheduling requirement including that the power and phase are continuous among the plurality of first uplink transmissions The first duration is determined by a designated value among at least two values of the first time length, each value of the first time length corresponding to different information in the first information, or the first duration is determined by the number of time units indicated by the network-side device. An uplink transmission method

14. A terminal comprising a processor, a memory, and a program or instruction stored in the memory and executable by the processor, wherein when the program or instruction is executed by the processor, the steps of the uplink transmission method according to any one of Claims 1-12 are realized

15. A network-side device comprising a processor, a memory, and a program or instruction stored in the memory and executable by the processor, wherein when the program or instruction is executed by the processor, the steps of the uplink transmission method according to Claim 13 are realized

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