WO2022155934A1

WO2022155934A1 - Pusch transmission method and communication apparatus

Info

Publication number: WO2022155934A1
Application number: PCT/CN2021/073427
Authority: WO
Inventors: 孙跃; 花梦
Original assignee: 华为技术有限公司
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-07-28

Abstract

The present application provides a PUSCH transmission method and a communication apparatus. The method may comprise: receiving first indication information and second indication information from a network device, wherein the second indication information indicates a time domain unit offset, and the first indication information indicates that the repetition type of PUSCH transmission is a repetition type A and indicates a rated number K of repetitions; determining a starting time domain unit of a rated transmission PUSCH according to the time domain unit offset, wherein the previous time domain unit of the starting time domain unit is a first time domain unit, or K time domain units of the rated transmission PUSCH comprise the first time domain unit and the first time domain unit does not satisfy a configured length and starting position, and the first time domain unit comprises a downlink symbol and a non-downlink symbol; determining a PUSCH transmission symbol in the first time domain unit; and performing PUSCH transmission on the PUSCH transmission symbol. Thus, PUSCH transmission can be performed by means of the non-downlink symbol in the first time domain unit, thereby reducing waste of non-downlink symbol resources.

Description

PUSCH传输方法及通信装置PUSCH transmission method and communication device

技术领域technical field

本申请涉及通信技术领域，尤其涉及一种PUSCH传输方法及通信装置。The present application relates to the field of communication technologies, and in particular, to a PUSCH transmission method and a communication device.

背景技术Background technique

新空口(new radio，NR)定义一个时隙(slot)由12或14个符号构成，这些符号例如采用正交频分复用(orthogonal frequency-division multiplexing，OFDM)技术生成。NR支持一个时隙用于上行传输，该时隙可以记为上行(uplink，U)slot；支持一个时隙用于下行传输，该时隙可以记为下行(downlink，D)slot；支持一个时隙既有上行配置也有下行配置，该时隙可以记为特殊(special，S)slot。一个特殊时隙中包括下行符号(downlink symbols)、上行符号(uplink symbols)和灵活符号(flexible symbols)中的至少两种类型符号，其中，下行符号不能用于上行传输；上行符号不能用于下行传输；而灵活符号既可用于下行传输也可用于上行传输。A new radio interface (new radio, NR) defines a time slot (slot) composed of 12 or 14 symbols, and these symbols are generated by, for example, orthogonal frequency-division multiplexing (orthogonal frequency-division multiplexing, OFDM) technology. NR supports one time slot for uplink transmission, which can be recorded as uplink (uplink, U) slot; supports one time slot for downlink transmission, which can be recorded as downlink (downlink, D) slot; supports one time slot A slot has both an uplink configuration and a downlink configuration, and the time slot can be recorded as a special (special, S) slot. A special time slot includes at least two types of symbols among downlink symbols (downlink symbols), uplink symbols (uplink symbols) and flexible symbols (flexible symbols), wherein downlink symbols cannot be used for uplink transmission; uplink symbols cannot be used for downlink transmission; and flexible symbols can be used for both downlink and uplink transmissions.

NR支持重复传输物理上行共享信道(physical uplink shared channel，PUSCH)，目前PUSCH的重复传输存在上行符号资源被浪费的情况。因此，如何减少上行符号资源的浪费是亟待解决的技术问题。NR supports repeated transmission of the physical uplink shared channel (PUSCH). At present, the repeated transmission of PUSCH has the situation that uplink symbol resources are wasted. Therefore, how to reduce the waste of uplink symbol resources is an urgent technical problem to be solved.

发明内容SUMMARY OF THE INVENTION

本申请提供一种PUSCH传输方法及通信装置，可以减少上行符号资源的浪费。The present application provides a PUSCH transmission method and a communication device, which can reduce the waste of uplink symbol resources.

第一方面，本申请提供一种PUSCH传输方法，该方法应用于PUSCH重复传输的场景。该方法可以由终端设备执行，也可以由终端设备中的装置(例如处理器或芯片等)执行。该方法以终端设备为例，包括以下内容。In a first aspect, the present application provides a PUSCH transmission method, which is applied to a scenario of repeated PUSCH transmission. The method may be executed by a terminal device, or may be executed by a device (for example, a processor or a chip, etc.) in the terminal device. The method takes a terminal device as an example, and includes the following contents.

终端设备接收来自网络设备的第一指示信息和第二指示信息，第一指示信息指示PUSCH传输的重复类型和额定重复次数，重复类型为重复类型A，第二指示信息指示时域单元偏移；终端设备根据时域单元偏移确定额定发送PUSCH的起始时域单元，该起始时域单元的上一个时域单元为第一时域单元，或额定发送PUSCH的K个时域单元包括第一时域单元，且第一时域单元不满足配置的长度和起始位置，K为额定重复次数；终端设备在第一时域单元中，确定PUSCH传输符号，并在确定的PUSCH传输符号上，进行PUSCH传输；其中，第一时域单元包括下行符号与非下行符号。The terminal device receives the first indication information and the second indication information from the network device, the first indication information indicates the repetition type and rated repetition number of PUSCH transmission, the repetition type is repetition type A, and the second indication information indicates the time domain unit offset; The terminal device determines the initial time domain unit for sending PUSCH according to the time domain unit offset, and the previous time domain unit of the initial time domain unit is the first time domain unit, or the K time domain units for sending PUSCH are rated to include the first time domain unit. A time domain unit, and the first time domain unit does not meet the configured length and starting position, and K is the rated number of repetitions; the terminal device determines the PUSCH transmission symbol in the first time domain unit, and on the determined PUSCH transmission symbol , PUSCH transmission is performed; wherein, the first time domain unit includes downlink symbols and non-downlink symbols.

可见，在PUSCH重复传输的场景下，终端设备可以利用第一时域单元中的非下行符号进行PUSCH传输，从而减少上行符号资源的浪费。It can be seen that in the scenario of repeated PUSCH transmission, the terminal device can use the non-downlink symbols in the first time domain unit to perform PUSCH transmission, thereby reducing the waste of uplink symbol resources.

其中，时域单元的符号数量为12个或14个符号，例如时域单元为时隙，第一时域单元为特殊时隙。在重复类型A的前提下，终端设备可以利用特殊时隙中的非下行符号进行PUSCH传输，从而减少上行符号资源的浪费。The number of symbols in the time domain unit is 12 or 14 symbols, for example, the time domain unit is a time slot, and the first time domain unit is a special time slot. Under the premise of repetition type A, the terminal device can use the non-downlink symbols in the special time slot for PUSCH transmission, thereby reducing the waste of uplink symbol resources.

在一种可能的实现方式中，上述PUSCH传输符号为第一时域单元中的上行符号，例如特殊时隙中的上行符号，利用特殊时隙中的上行符号进行PUSCH传输，提高上行符号的利用率。In a possible implementation manner, the above-mentioned PUSCH transmission symbols are uplink symbols in the first time domain unit, such as uplink symbols in special time slots, and the uplink symbols in special time slots are used for PUSCH transmission to improve the utilization of uplink symbols Rate.

在一种可能的实现方式中，上述PUSCH传输符号为第一时域单元中的非下行符号，例如特殊时隙中的非下行符号，可以包括上行符号和/或灵活符号，利用非下行符号进行PUSCH传输，提高特殊时隙的利用率。In a possible implementation manner, the above-mentioned PUSCH transmission symbols are non-downlink symbols in the first time domain unit, such as non-downlink symbols in special time slots, which may include uplink symbols and/or flexible symbols. PUSCH transmission to improve the utilization of special time slots.

在一种可能的实现方式中，上述PUSCH传输符号为第一时域单元中从第n个灵活符号开始的非下行符号，1≤n≤N，N为第一时域单元中灵活符号的个数，例如从第2个灵活符号开始的非下行符号，利用非下行符号进行PUSCH传输，提高特殊时隙的利用率。In a possible implementation manner, the above-mentioned PUSCH transmission symbols are non-downlink symbols starting from the nth flexible symbol in the first time domain unit, 1≤n≤N, and N is the number of flexible symbols in the first time domain unit For example, non-downlink symbols starting from the second flexible symbol, use non-downlink symbols for PUSCH transmission, and improve the utilization rate of special time slots.

在一种可能的实现方式中，上述PUSCH传输符号为第一时域单元中的上行符号与下行控制信息(downlink control information，DCI)指示的上行符号之间的交集，例如特殊时隙中的上行符号与DCI指示的上行符号之间的交集用于传输PUSCH，既可以利用特殊时隙中的上行符号进行PUSCH传输，又符合DCI的指示。In a possible implementation manner, the above-mentioned PUSCH transmission symbol is an intersection between an uplink symbol in the first time domain unit and an uplink symbol indicated by downlink control information (DCI), for example, an uplink symbol in a special time slot. The intersection between the symbol and the uplink symbol indicated by the DCI is used to transmit the PUSCH, and the uplink symbol in the special time slot can be used for PUSCH transmission, and the indication of the DCI is met.

在一种可能的实现方式中，上述PUSCH传输符号为第一时域单元中的非下行符号与DCI指示的上行符号之间的交集，例如特殊时隙中的非下行符号与DCI指示的上行符号之间的交集用于传输PUSCH，既可以利用特殊时隙中的非下行符号，又符合DCI的指示。In a possible implementation manner, the above-mentioned PUSCH transmission symbols are the intersection between the non-downlink symbols in the first time domain unit and the uplink symbols indicated by the DCI, for example, the non-downlink symbols in the special time slot and the uplink symbols indicated by the DCI The intersection between them is used to transmit PUSCH, which can not only use non-downlink symbols in special time slots, but also conform to the indication of DCI.

在一种可能的实现方式中，上述PUSCH传输符号为第一时域单元中从第n个灵活符号开始的非下行符号与下行控制信息指示的上行符号之间的交集，1≤n≤N，N为第一时域单元中灵活符号的个数，利用非下行符号进行PUSCH传输，又符合DCI的指示。In a possible implementation manner, the above-mentioned PUSCH transmission symbol is the intersection between the non-downlink symbol starting from the nth flexible symbol in the first time domain unit and the uplink symbol indicated by the downlink control information, 1≤n≤N, N is the number of flexible symbols in the first time domain unit, and the non-downlink symbols are used for PUSCH transmission, which also conforms to the indication of DCI.

在一种可能的实现方式中，终端设备根据PUSCH映射类型和解调参考信号(demodulation reference signal，DMRS)高层参数，确定在第二时域单元中DMRS占用的额定符号数量为第一数量，在第二时域单元进行PUSCH传输时，确定不发送DMRS或发送第二数量的DMRS，第二数量小于第一数量，第二时域单元为第一时域单元的下一个时域单元，满足配置的长度和起始位置，且属于上述K个时域单元；第二数量的DMRS和第一时域单元中的DMRS用于对第一时域单元和第二时域单元中传输的PUSCH进行联合信道估计。In a possible implementation manner, the terminal device determines, according to the PUSCH mapping type and the demodulation reference signal (demodulation reference signal, DMRS) high-level parameters, that the number of rated symbols occupied by the DMRS in the second time domain unit is the first number, and When the second time domain unit performs PUSCH transmission, it is determined not to send DMRS or to send a second quantity of DMRS, the second quantity is less than the first quantity, and the second time domain unit is the next time domain unit of the first time domain unit, which satisfies the configuration The length and the starting position of , and belong to the above K time domain units; the second number of DMRS and the DMRS in the first time domain unit are used to combine the PUSCH transmitted in the first time domain unit and the second time domain unit channel estimation.

可见，在第二时域单元进行PUSCH传输时，通过不发送DMRS或减少DMRS的发送数量，可以减低第二时域单元中DMRS的开销，从而提升PUSCH传输性能。It can be seen that when the second time domain unit performs PUSCH transmission, by not sending the DMRS or reducing the number of DMRS sent, the overhead of the DMRS in the second time domain unit can be reduced, thereby improving the PUSCH transmission performance.

在一种可能的实现方式中，终端设备根据PUSCH映射类型和DMRS高层参数，确定在第二时域单元中DMRS占用的额定符号数量为第一数量，并确定第一时域单元中的PUSCH传输中最后一个DMRS所在符号的位置，若最后一个DMRS所在符号的位置与第二时域单元的起始符号的位置之间的符号数小于第一阈值，在第二时域单元进行PUSCH传输时，确定不发送DMRS或发送第二数量的DMRS，第二数量小于第一数量，第二时域单元为第一时域单元的下一个时域单元，满足配置的长度和起始位置，且属于上述K个时域单元；第二数量的DMRS和第一时域单元中的DMRS用于对第一时域单元和第二时域单元中传输的PUSCH进行联合信道估计。In a possible implementation manner, the terminal device determines, according to the PUSCH mapping type and DMRS high-level parameters, that the rated number of symbols occupied by the DMRS in the second time domain unit is the first number, and determines the PUSCH transmission in the first time domain unit In the position of the symbol where the last DMRS is located, if the number of symbols between the position of the symbol where the last DMRS is located and the position of the starting symbol of the second time domain unit is less than the first threshold, when the second time domain unit performs PUSCH transmission, Determine not to send DMRS or send a second number of DMRS, the second number is less than the first number, the second time domain unit is the next time domain unit of the first time domain unit, meets the configured length and starting position, and belongs to the above K time domain units; the second number of DMRSs and the DMRSs in the first time domain unit are used to perform joint channel estimation on the PUSCH transmitted in the first time domain unit and the second time domain unit.

可见，在第二时域单元进行PUSCH传输时，并在第一时域单元中最后一个DMRS的位置与第二时域单元的起始符号的位置满足一定条件的情况下，通过不发送DMRS或减少DMRS的发送数量，可以减低第二时域单元中DMRS的开销，从而提升PUSCH传输性能。It can be seen that when the second time domain unit performs PUSCH transmission, and in the case that the position of the last DMRS in the first time domain unit and the position of the start symbol of the second time domain unit satisfy certain conditions, the DMRS or the starting symbol of the second time domain unit is not sent. Reducing the number of DMRS sent can reduce the overhead of the DMRS in the second time domain unit, thereby improving the PUSCH transmission performance.

在一种可能的实现方式中，在第二时域单元发送第二数量的DMRS的情况下，第二时域单元中第i个DMRS所在符号的位置，与额定的第二时域单元中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤第二数量，0≤j，j为第一数量与第二数量之间的差值。In a possible implementation manner, when the second time domain unit transmits the second number of DMRSs, the position of the symbol where the ith DMRS in the second time domain unit is located is the same as the second time domain unit in the rated second time domain unit. The positions of the symbols where the i+j DMRSs are located have a symbol offset; 1≤i≤the second number, 0≤j, and j is the difference between the first number and the second number.

可见，在减少DMRS发送数量的情况下，DMRS所在符号的位置不必局限于PUSCH映射类型和DMRS高层参数，使得DMRS的发送更为灵活。It can be seen that in the case of reducing the number of DMRS transmissions, the position of the symbol where the DMRS is located is not necessarily limited to the PUSCH mapping type and the DMRS high-level parameters, which makes the transmission of the DMRS more flexible.

第二方面，本申请提供另一种PUSCH传输方法，该方法应用于PUSCH重复传输的场景。该方法可以由终端设备执行，也可以由终端设备中的装置(例如处理器或芯片等)执行。该方法以终端设备为例，包括以下内容。In a second aspect, the present application provides another PUSCH transmission method, which is applied to a scenario of repeated PUSCH transmission. The method may be executed by a terminal device, or may be executed by a device (for example, a processor or a chip, etc.) in the terminal device. The method takes a terminal device as an example, and includes the following contents.

终端设备接收来自网络设备的第一指示信息和第二指示信息，第一指示信息指示PUSCH传输的重复类型和额定重复次数，第二指示信息指示时域单元偏移；终端设备根据时域单元偏移确定额定发送PUSCH的起始时域单元，并在K个时域单元上传输PUSCH，K个时域单元的起始时域单元为额定发送PUSCH的起始时域单元；在重复类型为重复类型A的情况下，K个时域单元中每个时域单元的符号数量为预设数量，例如12个或14个符号；在重复类型为重复类型B的情况下，K个时域单元中每个时域单元的符号数量小于或等于预设数量，例如小于或等于12个或14个符号；终端设备接收取消指示，取消指示指示的取消资源和第k个时域单元上的指示用于传输PUSCH的资源有重叠，第k个时域单元不用于传输PUSCH；1≤k≤K；终端设备在第k个时域单元的第一指定符号上，发送DMRS，第一指定符号为第k个时域单元中的后M1个符号，且不为取消指示指示的取消资源，M1为正整数；或，在第k个时域单元的第二指定符号上，发送DMRS，第二指定符号为第k个时域单元中的前M2个符号，且不为取消指示指示的取消资源，M2为正整数。The terminal equipment receives the first indication information and the second indication information from the network equipment, the first indication information indicates the repetition type and rated repetition number of PUSCH transmission, and the second indication information indicates the time domain unit offset; Shift to determine the starting time domain unit of the rated transmission PUSCH, and transmit the PUSCH on K time domain units, and the starting time domain unit of the K time domain units is the starting time domain unit of the rated transmission PUSCH; In the case of type A, the number of symbols in each time-domain unit in the K time-domain units is a preset number, such as 12 or 14 symbols; when the repetition type is repetition type B, among the K time-domain units The number of symbols in each time domain unit is less than or equal to the preset number, for example, less than or equal to 12 or 14 symbols; the terminal device receives the cancellation indication, the cancellation resource indicated by the cancellation indication and the indication on the kth time domain unit are used for The resources for transmitting PUSCH overlap, and the kth time domain unit is not used to transmit PUSCH; 1≤k≤K; the terminal device sends DMRS on the first designated symbol of the kth time domain unit, and the first designated symbol is the kth The last M1 symbols in the time domain units are not the cancellation resources indicated by the cancellation indication, and M1 is a positive integer; or, on the second designated symbol of the kth time domain unit, the DMRS is sent, and the second designated symbol is The first M2 symbols in the kth time domain unit are not the cancellation resources indicated by the cancellation indication, and M2 is a positive integer.

可见，在PUSCH重复传输遇到取消指示的情况下，取消指示指示的取消资源和第k个时域单元上的指示用于传输PUSCH的资源有重叠，终端设备在第k个时域单元不传输PUSCH，在第k个时域单元的第一指定符号上，发送DMRS，或在第k个时域单元的第二指定符号上，发送DMRS，从而可以利用第k个时域单元的符号发送DMRS，提高第k个时域单元的符号利用率。It can be seen that in the case of repeated PUSCH transmission encountering a cancellation indication, the cancellation resource indicated by the cancellation indication and the resource indicated on the kth time domain unit for transmitting PUSCH overlap, and the terminal device does not transmit in the kth time domain unit. PUSCH, send DMRS on the first designated symbol of the kth time domain unit, or send DMRS on the second designated symbol of the kth time domain unit, so that the DMRS can be sent by using the symbol of the kth time domain unit , to improve the symbol utilization of the kth time-domain unit.

在一种可能的实现方式中，终端设备在第k+1个时域单元上，确定不发送DMRS或发送第三数量的DMRS，第三数量小于额定第k+1个时域单元上发送的DMRS数量，且第k+1个时域单元属于K个时域单元；第三数量的DMRS和第k个时域单元中的DMRS用于对第k个时域单元和第k+1个时域单元中传输的PUSCH进行联合信道估计。In a possible implementation manner, the terminal device determines, on the k+1 th time domain unit, not to send DMRS or to send a third quantity of DMRS, where the third quantity is less than the nominal value sent on the k+1 th time domain unit The number of DMRSs, and the k+1 th time domain unit belongs to the K time domain units; the third number of DMRS and the DMRS in the k th time domain unit are used for the k th time domain unit and the k+1 th time domain unit Joint channel estimation is performed on the PUSCH transmitted in the domain unit.

可见，终端设备通过在第k+1个时域单元上，减少DMRS的发送数量，可以减低第k+1个时域单元中DMRS的开销，从而提升PUSCH传输性能。It can be seen that the terminal equipment can reduce the overhead of DMRS in the k+1 th time domain unit by reducing the number of DMRS sent in the k+1 th time domain unit, thereby improving the PUSCH transmission performance.

在一种可能的实现方式中，终端设备在发送第三数量的DMRS时，第k+1个时域单元中第i个DMRS所在符号的位置，与额定第k+1个时域单元中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤第三数量，0≤j，j为额定第k+1个时域单元上发送的DMRS数量与第三数量之间的差值。In a possible implementation manner, when the terminal device transmits the third number of DMRSs, the position of the symbol where the ith DMRS in the k+1th time domain unit is located is different from the position of the symbol in the k+1th time domain unit of the rated k+1th time domain unit. The positions of the symbols where the i+j DMRSs are located have a symbol offset; 1≤i≤the third number, 0≤j, j is the difference between the number of DMRSs sent on the rated k+1th time domain unit and the third number difference.

在一种可能的实现方式中，终端设备在第k-1个时域单元上，确定不发送DMRS或发送第四数量的DMRS，第四数量小于额定第k-1个时域单元上发送的DMRS数量，且第k-1个时域单元属于K个时域单元；第四数量的DMRS和第k个时域单元中的DMRS用于对第k个时域单元和第k-1个时域单元中传输的PUSCH进行联合信道估计。In a possible implementation manner, the terminal device determines, on the k-1 th time domain unit, not to send DMRS or to send a fourth quantity of DMRS, where the fourth quantity is less than the nominal value sent on the k-1 th time domain unit The number of DMRSs, and the k-1th time domain unit belongs to the K time domain units; the fourth number of DMRSs and the DMRS in the kth time domain unit are used for the kth time domain unit and the k-1th time domain unit. Joint channel estimation is performed on the PUSCH transmitted in the domain unit.

可见，终端设备通过在第k-1个时域单元上，减少DMRS的发送数量，可以减低第k-1个时域单元中DMRS的开销，从而提升PUSCH传输性能。It can be seen that the terminal equipment can reduce the overhead of DMRS in the k-1 th time domain unit by reducing the number of DMRS sent in the k-1 th time domain unit, thereby improving the PUSCH transmission performance.

在一种可能的实现方式中，终端设备在发送第四数量的DMRS时，第k-1个时域单元中第i个DMRS所在符号的位置，与额定第k-1个时域单元中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤第四数量，0≤j，j为额定第k-1个时域单元上发送的DMRS数量与第四数量之间的差值。In a possible implementation manner, when the terminal device sends the fourth number of DMRSs, the position of the symbol where the i-th DMRS in the k-1 th time domain unit is located is different from the position of the symbol in the k-1 th time domain unit The positions of the symbols where the i+j DMRSs are located have a symbol offset; 1≤i≤the fourth number, 0≤j, j is the difference between the number of DMRSs sent on the rated k-1th time domain unit and the fourth number difference.

第三方面，本申请提供又一种PUSCH传输方法，该方法应用于PUSCH重复传输的场景。该方法可以由终端设备执行，也可以由终端设备中的装置(例如处理器或芯片等)执行。该方法以终端设备为例，包括以下内容。In a third aspect, the present application provides yet another PUSCH transmission method, which is applied to a scenario of repeated PUSCH transmission. The method may be executed by a terminal device, or may be executed by a device (for example, a processor or a chip, etc.) in the terminal device. The method takes a terminal device as an example, and includes the following contents.

终端设备接收来自网络设备的第一指示信息，第一指示信息指示PUSCH传输的重复类型，重复类型为重复类型B；根据传输***信息，确定第i次PUSCH传输对应的符号集合I，第i+1次PUSCH传输对应的符号集合J和额定DMRS占用的符号数量，额定DMRS占用的符号数量为第五数量；传输***信息包括时域单元边界信息和/或无效符号配置信息；其中，i为正整数；终端设备在符号集合I上进行第i次PUSCH传输，在符号集合J上进行第i+1次PUSCH传输；符号集合I的最后一个DMRS符号与符号集合J的第一个符号之间的符号数小于第二阈值，且第i次PUSCH传输与第i+1次PUSCH传输的相位相同，在符号集合J上进行第i+1次PUSCH传输时，确定不发送DMRS或发送第六数量的DMRS，第六数量小于第五数量；第六数量的DMRS和符号集合I中的DMRS用于对符号集合I和符号集合J中传输的PUSCH进行联合信道估计。The terminal device receives the first indication information from the network device, the first indication information indicates the repetition type of PUSCH transmission, and the repetition type is repetition type B; according to the transmission splitting information, determine the symbol set I corresponding to the i-th PUSCH transmission, the i-th + The symbol set J corresponding to one PUSCH transmission and the number of symbols occupied by the rated DMRS, and the number of symbols occupied by the rated DMRS is the fifth number; the transmission splitting information includes time domain unit boundary information and/or invalid symbol configuration information; wherein, i is positive Integer; the terminal device performs the i-th PUSCH transmission on the symbol set I, and performs the i+1-th PUSCH transmission on the symbol set J; the difference between the last DMRS symbol of the symbol set I and the first symbol of the symbol set J The number of symbols is less than the second threshold, and the phase of the i-th PUSCH transmission is the same as that of the i+1-th PUSCH transmission. When the i+1-th PUSCH transmission is performed on the symbol set J, it is determined not to send DMRS or to send the sixth number of PUSCH transmissions. DMRS, the sixth quantity is smaller than the fifth quantity; the DMRS of the sixth quantity and the DMRS in the symbol set I are used to perform joint channel estimation on the PUSCH transmitted in the symbol set I and the symbol set J.

可见，在重复类型B的前提下，终端设备进行实际PUSCH传输，在第i次PUSCH传输和第i+1次PUSCH传输满足一定条件的情况下，在进行第i+1次PUSCH传输时，通过不发送DMRS或减少DMRS的发送数量，可以减低第i+1次PUSCH传输中DMRS的开销，从而提升PUSCH传输性能。It can be seen that under the premise of repetition type B, the terminal device performs actual PUSCH transmission. If the i-th PUSCH transmission and the i+1-th PUSCH transmission meet certain conditions, when performing the i+1-th PUSCH transmission, the Not sending the DMRS or reducing the number of DMRS sent can reduce the DMRS overhead in the i+1th PUSCH transmission, thereby improving the PUSCH transmission performance.

在一种可能的实现方式中，终端设备在发送第六数量的DMRS时，符号集合J中第p个DMRS所在符号的位置，与符号集合J中第p+q个额定DMRS所在符号的位置，存在符号偏移；1≤p≤第六数量，0≤q，q为第五数量与第六数量之间的差值。In a possible implementation manner, when the terminal device sends the sixth number of DMRSs, the position of the symbol where the p-th DMRS in the symbol set J is located is the same as the position of the symbol where the p+q-th rated DMRS in the symbol set J is located, There is a sign offset; 1≤p≤sixth number, 0≤q, where q is the difference between the fifth and sixth numbers.

第四方面，本申请提供一种通信装置，该通信装置可以是终端设备，也可以是终端设备中的装置。一种设计中，该装置可以包括执行第一方面或第二方面或第三方面中，以及各种可能性实现方式所描述的方法/操作/步骤/动作所对应的模块，该模块可以是硬件电路，也可以是软件，也可以是硬件电路结合软件实现。一种设计中，该装置可以包括收发模块和处理模块。示例性的，In a fourth aspect, the present application provides a communication apparatus, where the communication apparatus may be a terminal device or a device in a terminal device. In one design, the apparatus may include modules corresponding to the methods/operations/steps/actions described in the first aspect, the second aspect or the third aspect, and various possible implementations, and the modules may be hardware The circuit can also be implemented by software, or by a combination of hardware circuits and software. In one design, the apparatus may include a transceiver module and a processing module. Exemplary,

收发模块，用于接收来自网络设备的第一指示信息和第二指示信息，第一指示信息指示PUSCH传输的重复类型和额定重复次数，重复类型为重复类型A；第二指示信息指示时域单元偏移；The transceiver module is used for receiving the first indication information and the second indication information from the network device, the first indication information indicates the repetition type and rated repetition number of PUSCH transmission, and the repetition type is repetition type A; the second indication information indicates the time domain unit offset;

处理模块，用于根据时域单元偏移确定额定发送PUSCH的起始时域单元；起始时域单元的上一个时域单元为第一时域单元；或，额定发送PUSCH的K个时域单元包括第一时域单元，且第一时域单元不满足配置的长度和起始位置，K为额定重复次数；其中，第一时域单元包括下行符号与非下行符号；在第一时域单元中，确定PUSCH传输符号；The processing module is used to determine the initial time domain unit for sending PUSCH according to the time domain unit offset; the previous time domain unit of the initial time domain unit is the first time domain unit; or, the K time domain units for sending PUSCH nominally The unit includes a first time domain unit, and the first time domain unit does not meet the configured length and starting position, and K is the rated number of repetitions; wherein, the first time domain unit includes downlink symbols and non-downlink symbols; in the first time domain In the unit, determine the PUSCH transmission symbol;

收发模块，还用于在PUSCH传输符号上，进行PUSCH传输。The transceiver module is further configured to perform PUSCH transmission on the PUSCH transmission symbols.

第五方面，本申请提供一种通信装置，该装置包括处理器，用于实现上述第一方面或第二方面或第三方面描述的方法。该装置还可以包括存储器，用于存储指令和数据。该存储器与该处理器耦合，该处理器执行该存储器中存储的指令时，可以使该装置实现上述第一方面以及第一方面的各个可能实现方式，或第二方面以及第二方面的各个可能实现方式，或第三方面以及第三方面的各个可能实现方式所描述的方法。该装置还可以包括通信接口，该通信接口用于该装置与其它设备进行通信，示例性的，通信接口可以是收发器、总线等电路硬件模块，其它设备可以为终端设备等。在一种可能的设计中，该装置包括：In a fifth aspect, the present application provides a communication apparatus, the apparatus including a processor, configured to implement the method described in the first aspect or the second aspect or the third aspect. The apparatus may also include memory for storing instructions and data. The memory is coupled to the processor, and when the processor executes the instructions stored in the memory, the device can implement the above-mentioned first aspect and each possible implementation manner of the first aspect, or the second aspect and each possible implementation manner of the second aspect implementations, or methods described in the third aspect and various possible implementations of the third aspect. The apparatus may also include a communication interface, which is used for the apparatus to communicate with other devices. Exemplarily, the communication interface may be a circuit hardware module such as a transceiver and a bus, and other devices may be terminal devices. In one possible design, the device includes:

存储器，用于存储程序指令；memory for storing program instructions;

处理器，用于接收来自网络设备的第一指示信息和第二指示信息，第一指示信息指示PUSCH传输的重复类型和额定重复次数，重复类型为重复类型A；第二指示信息指示时域单元偏移；根据时域单元偏移确定额定发送PUSCH的起始时域单元；起始时域单元的上一个时域单元为第一时域单元；或，额定发送PUSCH的K个时域单元包括第一时域单元，且第一时域单元不满足配置的长度和起始位置，K为额定重复次数；其中，第一时域单元包括下行符号与非下行符号；在第一时域单元中，确定PUSCH传输符号；在PUSCH传输符号上，进行PUSCH传输。The processor is configured to receive first indication information and second indication information from the network device, the first indication information indicates the repetition type and rated repetition number of PUSCH transmission, and the repetition type is repetition type A; the second indication information indicates the time domain unit Offset; determine the initial time domain unit for sending PUSCH rated according to the time domain unit offset; the previous time domain unit of the initial time domain unit is the first time domain unit; or, the K time domain units rated to send PUSCH include The first time domain unit, and the first time domain unit does not meet the configured length and starting position, and K is the rated number of repetitions; wherein, the first time domain unit includes downlink symbols and non-downlink symbols; in the first time domain unit , determine the PUSCH transmission symbol; on the PUSCH transmission symbol, perform PUSCH transmission.

第六方面，本申请提供一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行第一方面以及第一方面的各个可能实现方式，或第二方面以及第二方面的各个可能实现方式，或第三方面以及第三方面的各个可能实现方式提供的方法。In a sixth aspect, the present application provides a computer-readable storage medium comprising instructions that, when run on a computer, cause the computer to execute the first aspect and various possible implementations of the first aspect, or the second aspect and the second aspect Various possible implementations of the third aspect, or the third aspect and the methods provided by the various possible implementations of the third aspect.

第七方面，本申请提供一种芯片***，该芯片***包括处理器，还可以包括存储器，用于实现上述第一方面以及第一方面的各个可能实现方式，或第二方面以及第二方面的各个可能实现方式，或第三方面以及第三方面的各个可能实现方式提供的方法。该芯片***可以由芯片构成，也可以包含芯片和其他分立器件。In a seventh aspect, the present application provides a chip system, the chip system includes a processor, and may also include a memory, for implementing the first aspect and each possible implementation manner of the first aspect, or the second aspect and the second aspect. Various possible implementations, or the third aspect and methods provided by various possible implementations of the third aspect. The chip system can be composed of chips, and can also include chips and other discrete devices.

附图说明Description of drawings

图1为采用重复类型A时，PUSCH传输的映射图案的示例图；1 is an example diagram of a mapping pattern for PUSCH transmission when repetition type A is used;

图2a为采用重复类型B时，PUSCH传输的映射图案的一种示例图；Fig. 2a is a kind of example diagram of the mapping pattern of PUSCH transmission when adopting repetition type B;

图2b为采用重复类型B时，PUSCH传输的映射图案的另一种示例图；Fig. 2b is another exemplary diagram of the mapping pattern of PUSCH transmission when repetition type B is adopted;

图3为应用本申请实施例的网络架构示意图；3 is a schematic diagram of a network architecture applying an embodiment of the present application;

图4为本申请实施例一提供的PUSCH传输方法的流程示意图；4 is a schematic flowchart of a PUSCH transmission method provided in Embodiment 1 of the present application;

图5为本申请实施例一提供的一种PUSCH传输的示例图；FIG. 5 is an example diagram of a PUSCH transmission according to Embodiment 1 of the present application;

图6为本申请实施例一提供的另一种PUSCH传输的示例图；FIG. 6 is an example diagram of another PUSCH transmission provided by Embodiment 1 of the present application;

图7a为基于实施例一的一种DMRS传输的示例图；7a is an exemplary diagram of a DMRS transmission based on Embodiment 1;

图7b为基于实施例一的另一种DMRS传输的示例图；7b is an exemplary diagram of another DMRS transmission based on Embodiment 1;

图7c为基于实施例一的又一种DMRS传输的示例图；7c is an exemplary diagram of still another DMRS transmission based on Embodiment 1;

图8为本申请实施例二提供的PUSCH传输方法的流程示意图；8 is a schematic flowchart of a PUSCH transmission method provided in Embodiment 2 of the present application;

图9a为基于实施例二的一种DMRS传输的示例图；9a is an exemplary diagram of a DMRS transmission based on Embodiment 2;

图9b为基于实施例二的另一种DMRS传输的示例图；FIG. 9b is an exemplary diagram of another DMRS transmission based on Embodiment 2;

图10为本申请实施例三提供的PUSCH传输方法的流程示意图；10 is a schematic flowchart of a PUSCH transmission method provided in Embodiment 3 of the present application;

图11为基于实施例三的一种DMRS传输的示例图；11 is an exemplary diagram of a DMRS transmission based on Embodiment 3;

图12为本申请实施例提供的通信装置的结构示意图；FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

图13为本申请实施例提供的一种终端设备的结构示意图；FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

图14为本申请实施例提供的通信装置的另一种结构示意图。FIG. 14 is another schematic structural diagram of a communication apparatus provided by an embodiment of the present application.

具体实施方式Detailed ways

为了更好地理解本申请实施例提供的技术方案，首先对本申请实施例涉及的技术术语进行介绍。In order to better understand the technical solutions provided by the embodiments of the present application, the technical terms involved in the embodiments of the present application are first introduced.

(1)PUSCH传输的调度(1) Scheduling of PUSCH transmission

在NR中，PUSCH传输的调度可以分为以下三种方式：In NR, the scheduling of PUSCH transmission can be divided into the following three ways:

方式一，基于动态调度的PUSCH传输：每次PUSCH传输，由下行控制信息(downlink control information，DCI)进行调度。在此种传输中，用户设备(user equipment，UE)接收到一次上行调度，就进行一次PUSCH传输。 Manner 1, PUSCH transmission based on dynamic scheduling: each PUSCH transmission is scheduled by downlink control information (DCI). In this type of transmission, a user equipment (user equipment, UE) performs one PUSCH transmission after receiving an uplink scheduling.

方式二，配置许可(configured grant)类型(type)1：半静态调度，UE接收高层配置(包含rrc-ConfiguredUplinkGrant的高层参数configuredGrantConfig)，不接收DCI，协议中称为“configured uplink grant”。在此种传输中，高层配置了一些半持续资源，UE在需要发送上行数据的情况下，利用这些半持续资源发送PUSCH；如果UE没有上行数据需要发送，则不进行数据发送。Method 2: Configured grant type (type) 1: semi-static scheduling, the UE receives the high-level configuration (including the high-level parameter configuredGrantConfig of rrc-ConfiguredUplinkGrant) and does not receive DCI, which is called "configured uplink grant" in the protocol. In this type of transmission, the upper layer configures some semi-persistent resources, and the UE uses these semi-persistent resources to send the PUSCH when it needs to send uplink data; if the UE has no uplink data to send, it does not send data.

方式三，配置许可type2：UE接收高层配置(不包含rrc-ConfiguredUplinkGrant的高层参数configuredGrantConfig)，并根据DCI激活或者去激活上行资源，协议中称为“configured uplink grant based on L1 signalling”。此种传输中，高层配置了一些半持续资源，由DCI激活/去激活这些半持续资源，激活时行为和方式二类似；去激活时，UE不能适用这些半持续资源。Mode 3, configuration permission type2: UE receives high-level configuration (excluding high-level parameter configuredGrantConfig of rrc-ConfiguredUplinkGrant), and activates or deactivates uplink resources according to DCI, which is called "configured uplink grant based on L1 signalalling" in the protocol. In this type of transmission, the upper layer configures some semi-persistent resources, and the DCI activates/deactivates these semi-persistent resources. The behavior during activation is similar to that of Mode 2; during deactivation, the UE cannot apply these semi-persistent resources.

(2)PUSCH重复传输的重复类型(2) Repetition type of PUSCH repeated transmission

在NR中，PUSCH重复传输的重复类型分为两种，分别是PUSCH repetition Type A以及PUSCH repetition Type B。在本申请中，将PUSCH repetition Type A称为重复类型A，将PUSCH repetition Type B称为重复类型B。In NR, the repetition types of PUSCH repeated transmission are divided into two types, namely PUSCH repetition Type A and PUSCH repetition Type B. In this application, PUSCH repetition Type A is referred to as repetition type A, and PUSCH repetition Type B is referred to as repetition type B.

UE开始传输PUSCH的时隙K _s由K ₂决定，K ₂为时隙偏移，公式如下。 The time slot K _s in which the UE starts to transmit the PUSCH is determined by K ₂ , and K ₂ is the time slot offset, and the formula is as follows.

其中，n表示调度的DCI所在的时隙，μ _PUSCH表示PUSCH的子载波间隔配置，μ _PDCCH表示物理下行控制信道(physical downlink control channel，PDCCH)的子载波间隔配置，

表示PDCCH载波聚合的时隙偏移，μ _offset,PDCCH表示PDCCH的子载波间隔配置偏移，

表示PUSCH载波聚合的时隙偏移，μ _offset,PUSCH表示PUSCH的子载波间隔配置偏移。 Among them, n represents the time slot where the scheduled DCI is located, μ _PUSCH represents the subcarrier spacing configuration of the PUSCH, μ _PDCCH represents the subcarrier spacing configuration of the physical downlink control channel (PDCCH),

represents the time slot offset of PDCCH carrier aggregation, μ _{offset, PDCCH} represents the subcarrier spacing configuration offset of PDCCH,

represents the time slot offset of PUSCH carrier aggregation, μ _{offset, PUSCH} represents the subcarrier spacing configuration offset of PUSCH.

时隙K _s可以理解为PUSCH重复传输的起始时隙。若PUSCH重复传输的次数为K次，K为大于1的整数，时隙K _s可以理解为第一次重复传输对应的时隙。在本申请中，时隙K _s可以称为额定发送PUSCH的起始时隙。 The time slot K _s can be understood as the initial time slot of the PUSCH repeated transmission. If the number of times of PUSCH repeated transmission is K, and K is an integer greater than 1, the time slot K _s can be understood as the time slot corresponding to the first repeated transmission. In this application, the time slot K _s may be referred to as the starting time slot for the nominal transmission of the PUSCH.

重复类型A：Repeat Type A:

重复类型A以时隙为单位重复K次，起始符号S是相对时隙的开始位置；L是分配给PUSCH的，从S开始的连续符号个数；S与L由开始与长度指示信息(start and length indicator，SLIV)指示。在K>1时，在K个连续时隙上应用相同的符号分配。协议中规定有效的S与L组合的设计，使得重复类型A不会跨越时隙边界。因此，当PUSCH传输在S slot中的连续上行符号数小于L时，PUSCH不会在S slot中发送。The repetition type A is repeated K times in the unit of time slot, and the start symbol S is the start position of the relative time slot; L is the number of consecutive symbols allocated to PUSCH, starting from S; S and L are indicated by the start and length information ( start and length indicator, SLIV) indication. When K>1, the same symbol assignment is applied over K consecutive slots. The protocol specifies the design of efficient S and L combinations so that repetition type A does not cross slot boundaries. Therefore, when the number of consecutive uplink symbols in S slot for PUSCH transmission is less than L, PUSCH will not be sent in S slot.

示例性的，S＝0，L＝10，K＝4时，采用重复类型A，PUSCH传输的映射图案可参见图1所示。图1中，斜条纹所占用的符号用于传输PUSCH。Exemplarily, when S=0, L=10, and K=4, repetition type A is used, and the mapping pattern of PUSCH transmission can be referred to as shown in FIG. 1 . In Fig. 1, the symbols occupied by the diagonal stripes are used to transmit PUSCH.

重复类型B：Repeat Type B:

重复类型B以网络设备指示的长度L为单位重复K次，起始符号S是相对时隙的开始位置；L是分配给PUSCH的，从S开始的连续符号个数；S与L分别由资源分配表索引行的startSymbol和length指示。重复类型B相比重复类型A更为灵活，可能会出现一个重复(repetition)跨越时隙边界，或一个repetition中包含无效符号(invalid symbol(s))的情况，此时，repetition会出现***。协议中将***前的repetition称为名义重复(nominal repetition)，将***后的repetition称为实际重复(actual repetition)，网络设备指示的重复次数K指的是nominal repetition的总次数。The repetition type B is repeated K times with the length L indicated by the network device as the unit, and the starting symbol S is the start position of the relative time slot; L is the number of consecutive symbols allocated to the PUSCH, starting from S; S and L are respectively determined by the resource The startSymbol and length indications of the index row of the allocation table. Repetition type B is more flexible than repetition type A. There may be a repetition (repetition) crossing a slot boundary, or a repetition containing invalid symbols (invalid symbol(s)). In this case, the repetition will split. In the protocol, the repetition before the split is called the nominal repetition, and the repetition after the split is called the actual repetition. The number of repetitions K indicated by the network device refers to the total number of nominal repetitions.

示例性的，S＝11(从0开始编号)，L＝7，K＝4时，采用重复类型B，PUSCH传输的映射图案可参见图2a所示。图2a中，斜条纹所占用的符号用于传输PUSCH。由于时隙边界的存在，4次nominal repetition被***为6次actual repetition，每次actual repetition表示传输一次PUSCH，任意一次PUSCH传输占用的符号数小于或等于L。Exemplarily, when S=11 (numbered from 0), L=7, and K=4, repetition type B is used, and the mapping pattern of PUSCH transmission can be seen in FIG. 2a. In Figure 2a, the symbols occupied by the diagonal stripes are used to transmit PUSCH. Due to the existence of time slot boundaries, 4 nominal repetitions are split into 6 actual repetitions, each actual repetition represents one PUSCH transmission, and the number of symbols occupied by any PUSCH transmission is less than or equal to L.

采用重复类型B，遇到无效符号，例如下行符号时，nominal repetition会首先将这些无效符号去掉。如果一个nominal repetition中的潜在有效符号数大于0，那么该nominal repetition会包括一个或多个actual repetition，每个actual repetition利用连续的有效符号传输(除非L＝1，否则单符号的actual repetition被忽略)。Using repetition type B, when encountering invalid symbols, such as descending symbols, nominal repetition will first remove these invalid symbols. If the number of potentially valid symbols in a nominal repetition is greater than 0, then the nominal repetition will include one or more actual repetitions, each actual repetition is transmitted using consecutive valid symbols (unless L=1, single-symbol actual repetitions are ignored ).

示例性的，灰色代表下行符号，S＝0，L＝7，K＝2时，PUSCH传输的映射图案可参见图2b所示。图2b中，斜条纹所占用的符号用于传输PUSCH。由于无效符号的存在，2次nominal repetition被***为3次actual repetition，每次actual repetition表示传输一次PUSCH，任意一次PUSCH传输占用的符号数小于或等于L。Exemplarily, gray represents downlink symbols, and when S=0, L=7, and K=2, the mapping pattern of PUSCH transmission can be referred to as shown in FIG. 2b. In Figure 2b, the symbols occupied by the diagonal stripes are used to transmit PUSCH. Due to the existence of invalid symbols, 2 nominal repetitions are split into 3 actual repetitions, each actual repetition represents one PUSCH transmission, and the number of symbols occupied by any PUSCH transmission is less than or equal to L.

对于PUSCH的S与L组合，下表1中S与L的组合视为有效分配。For the S and L combination of PUSCH, the combination of S and L in Table 1 below is considered as a valid allocation.

表1Table 1

(3)解调参考信号(demodulation reference signal，DMRS)与PUSCH映射类型(3) Demodulation reference signal (DMRS) and PUSCH mapping type

上行DMRS伴随物理上行控制信道(physical uplink control channel，PUCCH)和PUSCH传输，其时频资源可以占用PUCCH或PUSCH的一部分。The uplink DMRS is transmitted along with a physical uplink control channel (PUCCH) and PUSCH, and its time-frequency resources may occupy part of the PUCCH or PUSCH.

DMRS分为单符号DMRS与双符号DMRS。在没有配置DMRS-UplinkConfig中的高层参数maxLength，或者对msgA传输没有配置msgA-DMRS-Configuration中的msgA-MaxLength的情况下，使用单符号DM-RS；在DMRS-UplinkConfig中的高层参数maxLength等于'len2'的情况下，根据相关联的DCI或配置授权配置决定使用单符号DM-RS还是双符号DM-RS；在msgA-DMRS-Configuration中的高层参数msgA-MaxLength等于'len2'，使用双符号DM-RS。DMRS is divided into single-symbol DMRS and dual-symbol DMRS. In the case where the upper layer parameter maxLength in DMRS-UplinkConfig is not configured, or the msgA transmission is not configured with msgA-MaxLength in msgA-DMRS-Configuration, single-symbol DM-RS is used; the upper layer parameter maxLength in DMRS-UplinkConfig is equal to ' In the case of len2', determine whether to use single-symbol DM-RS or dual-symbol DM-RS according to the associated DCI or configuration authorization configuration; the high-level parameter msgA-MaxLength in msgA-DMRS-Configuration is equal to 'len2', and dual-symbol DM-RS is used DM-RS.

DMRS束(DMRS-bundling)，利用多时隙/重复的DMRS进行信道估计，可以提升信道估计精度，进一步提升性能。DMRS-bundling uses multi-slot/repetitive DMRS for channel estimation, which can improve channel estimation accuracy and further improve performance.

在NR中，PUSCH映射类型分为两种，分别是PUSCH映射类型A和PUSCH映射类型B。In NR, there are two types of PUSCH mapping, namely PUSCH mapping type A and PUSCH mapping type B.

PUSCH映射类型A：PUSCH Mapping Type A:

跳频不使能时，l定义为相对时隙的开始位置；第一个DMRS所在符号的位置l ₀由高层参数dmrs-TypeA-Position指示，取值范围为pos2与pos3；时隙内跳频不使能时，持续符号数l _d为时隙内第一个正交频分复用(orthogonal frequency-division multiplexing，OFDM)符号与时隙内调度的PUSCH资源的最后一个符号之间的持续符号数。 When frequency hopping is not enabled, l is defined as the start position of the relative time slot; the position l ₀ of the symbol where the first DMRS is located is indicated by the high-level parameter dmrs-TypeA-Position, and the value range is pos2 and pos3; frequency hopping in the time slot When not enabled, the number of persistent symbols _ld is the persistent symbol between the first orthogonal frequency-division multiplexing (OFDM) symbol in the time slot and the last symbol of the PUSCH resource scheduled in the time slot number.

PUSCH映射类型B：PUSCH Mapping Type B:

跳频不使能时，l定义为相对调度的PUSCH资源的起始位置；第一个DMRS所在符号的位置l ₀＝0；持续符号数l _d为调度的PUSCH资源的持续符号数。 When frequency hopping is not enabled, 1 is defined as the starting position of the relative scheduled PUSCH resource; the position of the symbol where the first DMRS is located 1 ₀ =0; the number of persistent symbols 1 _d is the number of persistent symbols of the scheduled PUSCH resource.

以单符号DMRS为例，根据PUSCH映射类型的不同，l _d不同，高层参数dmrs-AdditionalPosition配置的值的不同，所配置的DMRS在每一时隙内的符号数目与位置

也不同，如下表2所示。 Taking the single-symbol DMRS as an example, according to the different PUSCH mapping types, 1 _d , and the value of the high-level parameter dmrs-AdditionalPosition configuration, the number and position of the configured DMRS symbols in each time slot are different.

are also different, as shown in Table 2 below.

表2Table 2

(4)取消指示(cancellation indication，CI)(4) Cancellation indication (CI)

DCI格式(format)2_4可用于通知UE取消相应上行传输的物理资源块(physical resource block，PRB)和OFDM符号，其传输一个或多个CI。DCI format 2_4针对服务小区的CI，适用于服务小区中的PUSCH传输或SRS传输，本申请关注对于PUSCH传输的影响。The DCI format (format) 2_4 may be used to notify the UE to cancel the corresponding uplink transmission physical resource block (PRB) and OFDM symbols, which transmit one or more CIs. DCI format 2_4 is for the CI of the serving cell, and is suitable for PUSCH transmission or SRS transmission in the serving cell. This application focuses on the impact on PUSCH transmission.

UE检测到DCI format 2_4时，如果其指示在相应的PRB与symbol上，与PUSCH重复传输的时频资源有重叠，那么取消掉一次PUSCH传输，或一次PUSCH传输的一次实际重复。如果基于DCI format 2_4的指示，UE取消掉一次PUSCH传输，那么UE不期望被第二个DCI format调度，在被取消的PUSCH传输的符号上，再传输PUSCH。When the UE detects DCI format 2_4, if its indication on the corresponding PRB and symbol overlaps with the time-frequency resources of the PUSCH repeated transmission, then cancel a PUSCH transmission, or an actual repetition of a PUSCH transmission. If the UE cancels a PUSCH transmission based on the indication of DCI format 2_4, the UE does not expect to be scheduled by the second DCI format, and transmits PUSCH again on the symbol of the canceled PUSCH transmission.

目前PUSCH的重复传输存在上行符号资源被浪费的情况，鉴于此，本申请提供一种PUSCH传输方法，可以减少上行符号资源的浪费。At present, the repeated transmission of PUSCH has the situation that uplink symbol resources are wasted. In view of this, the present application provides a PUSCH transmission method, which can reduce the waste of uplink symbol resources.

在本申请实施例中的附图中，各个实施例所示的步骤，以及步骤之间的先后顺序用于举例，并不构成对本申请实施例的限定。应理解，执行图示中的部分步骤或调整步骤的顺序进行具体实施，均落在本申请的保护范围内。In the drawings in the embodiments of the present application, the steps shown in the various embodiments and the sequence between the steps are used as examples, and do not constitute a limitation to the embodiments of the present application. It should be understood that the specific implementation of performing some steps in the figures or the order of adjusting the steps falls within the protection scope of the present application.

本申请实施例描述的技术可用于各种通信***，例如***(4th generation，4G)通信***，4.5G通信***，5G通信***，多种通信***融合的***，或者未来演进的通信***。例如LTE***，NR***，无线保真(wireless-fidelity，WiFi)***，时延敏感网络(time-sensitive networking，TSN)***，一体化接入回传(integrated access and backhaul，IAB)***等第三代合作伙伴计划(3rd generation partnership project，3GPP)组织制定相关的通信***。The technologies described in the embodiments of this application can be used in various communication systems, such as a fourth-generation (4th generation, 4G) communication system, a 4.5G communication system, a 5G communication system, a system that integrates multiple communication systems, or a communication system that evolves in the future . For example, LTE system, NR system, wireless-fidelity (WiFi) system, time-sensitive network (TSN) system, integrated access and backhaul (IAB) system, etc. The 3rd generation partnership project (3GPP) organizes the development of related communication systems.

本申请实施例涉及的终端设备(也可称为终端)可以是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和人造卫星上等)。终端设备可以是用户设备(user equipment，UE)，其中，UE包括具有无线通信功能的手持式设备、车载设备、穿戴式设备或计算设备。示例性地，UE可以是手机(mobile phone)、平板电脑或带无线收发功能的电脑。本申请实施例中，用于实现终端设备的功能的装置可以是终端设备；也可以是能够支持终端设备实现该功能的装置，例如芯片***，该装置可以被安装在终端设备中或者和终端设备匹配使用，例如处理器。在本申请实施例提供的技术方案中，以用于实现终端设备的功能的装置是终端设备为例，描述本申请实施例提供的技术方案。The terminal device (also referred to as a terminal) involved in the embodiments of the present application may be a device with a wireless transceiver function, which may be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; or may be deployed on water (eg, a ship). etc.); can also be deployed in the air (such as on airplanes, balloons, and satellites, etc.). The terminal device may be a user equipment (user equipment, UE), where the UE includes a handheld device, a vehicle-mounted device, a wearable device or a computing device with a wireless communication function. Exemplarily, the UE may be a mobile phone, a tablet computer, or a computer with a wireless transceiver function. In this embodiment of the present application, the device for implementing the function of the terminal device may be the terminal device; it may also be a device capable of supporting the terminal device to realize the function, such as a chip system, and the device may be installed in the terminal device or integrated with the terminal device. Matching usage, e.g. processor. In the technical solutions provided by the embodiments of the present application, the technical solutions provided by the embodiments of the present application are described by taking the device for realizing the function of the terminal device as the terminal device as an example.

在本申请中，终端可以是物联网(internet of things，IoT)***中的终端，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。本申请中的终端可以是机器类型通信(machine type communication，MTC)中的终端。本申请的终端可以是作为一个或多个部件或者单元而内置于车辆的车载模块，车辆通过内置的所述车载模块可以实施本申请的方法。因此，本申请实施例可以应用于车联网，例如车辆联万物(vehicle to everything，V2X)、车辆通信长期演进技术(long term evolution vehicle，LTE-V)、车到车(vehicle to vehicle，V2V)等。In this application, the terminal may be a terminal in the Internet of Things (IoT) system. IoT is an important part of the future development of information technology. Machine interconnection, the intelligent network of the interconnection of things and things. The terminal in this application may be a terminal in machine type communication (MTC). The terminal of the present application may be an on-board module built into the vehicle as one or more components or units, and the vehicle may implement the method of the present application through the built-in on-board module. Therefore, the embodiments of the present application can be applied to the Internet of Vehicles, such as vehicle to everything (V2X), long term evolution vehicle (LTE-V), vehicle to vehicle (V2V) Wait.

本申请实施例涉及的网络设备，可以包括基站(base station，BS)，可以是一种部署在无线接入网络中能够和终端设备进行无线通信的设备。其中，基站可能有多种形式，比如宏基站、微基站、中继站和接入点等。示例性地，本申请实施例涉及到的网络设备可以是5G中的基站或长期演进(long term evolution，LTE)中的基站，其中，5G中的基站还可以称为发送接收点(transmission reception point，TRP)或下一代基站节点(next generation Node B，gNB)。本申请实施例中，用于实现网络设备的功能的装置可以是网络设备；也可以是能够支持网络设备实现该功能的装置，例如芯片***，该装置可以被安装在网络设备中或者和网络设备匹配使用，例如处理器。本申请实施例中，芯片***可以由芯片构成，也可以包括芯片和其他分立器件。在本申请实施例提供的技术方案中，以用于实现网络设备的功能的装置是网络设备为例，描述本申请实施例提供的技术方案。The network device involved in the embodiments of the present application may include a base station (base station, BS), which may be a device deployed in a wireless access network and capable of wirelessly communicating with a terminal device. The base station may have various forms, such as a macro base station, a micro base station, a relay station, and an access point. Exemplarily, the network device involved in the embodiments of the present application may be a base station in 5G or a base station in long term evolution (LTE), where the base station in 5G may also be referred to as a transmission reception point (transmission reception point). , TRP) or next generation Node B (gNB). In the embodiments of the present application, the device for implementing the function of the network device may be a network device; it may also be a device capable of supporting the network device to realize the function, such as a chip system, and the device may be installed in the network device or combined with the network device Matching usage, e.g. processor. In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices. In the technical solutions provided by the embodiments of the present application, the technical solutions provided by the embodiments of the present application are described by taking the device for realizing the function of the network device being a network device as an example.

请参见图3，为应用本申请实施例的网络架构示意图。该网络架构可包括网络设备301和终端设备302。需要说明的是，图3所示的设备的形态和数量用于举例，并不构成对本申请实施例的限定。Please refer to FIG. 3 , which is a schematic diagram of a network architecture to which an embodiment of the present application is applied. The network architecture may include network equipment 301 and terminal equipment 302 . It should be noted that the shapes and quantities of the devices shown in FIG. 3 are used as examples, and do not constitute a limitation to the embodiments of the present application.

其中，网络设备301可以用于发送下行数据信道(physical downlink shared channel，PDSCH)和下行控制信道(physical downlink control channel，PDCCH)，还可以用于接收来自终端设备的PUSCH和PUCCH等。终端设备302可以用于接收来自网络设备的PDSCH和PDCCH，还可以用于发送PUSCH和PUCCH等。Wherein, the network device 301 can be used to send a downlink data channel (physical downlink shared channel, PDSCH) and a downlink control channel (physical downlink control channel, PDCCH), and can also be used to receive PUSCH and PUCCH from the terminal device. The terminal device 302 can be used to receive PDSCH and PDCCH from network devices, and can also be used to send PUSCH and PUCCH, and so on.

在本申请的一种实现方式中，终端设备302接收来自网络设备301的第一指示信息和第二指示信息，第一指示信息指示PUSCH传输的重复类型和额定重复次数，重复类型为重复类型A，第二指示信息指示时域单元偏移。终端设备302根据时域单元偏移确定额定发送PUSCH的起始时域单元，该起始时域单元的上一个时域单元为第一时域单元，或额定发送PUSCH的K个时域单元包括第一时域单元，且第一时域单元不满足配置的长度和起始位置，K为额定重复次数；终端设备在第一时域单元中，确定PUSCH传输符号，并在确定的PUSCH传输符号上，进行PUSCH传输；其中，第一时域单元包括下行符号与非下行符号。该种方式下，终端设备302可以利用第一时域单元中的非下行符号进行PUSCH传输，从而减少上行符号资源的浪费。In an implementation manner of the present application, the terminal device 302 receives the first indication information and the second indication information from the network device 301, the first indication information indicates the repetition type and rated repetition number of PUSCH transmission, and the repetition type is repetition type A , and the second indication information indicates the time domain unit offset. The terminal device 302 determines, according to the time-domain unit offset, a starting time-domain unit for sending the PUSCH, where the previous time-domain unit of the starting time-domain unit is the first time-domain unit, or the K time-domain units for sending the PUSCH include: The first time domain unit, and the first time domain unit does not meet the configured length and starting position, and K is the rated number of repetitions; the terminal device determines the PUSCH transmission symbol in the first time domain unit, and transmits the symbol in the determined PUSCH above, perform PUSCH transmission; wherein, the first time domain unit includes downlink symbols and non-downlink symbols. In this manner, the terminal device 302 can use the non-downlink symbols in the first time domain unit to perform PUSCH transmission, thereby reducing the waste of uplink symbol resources.

在本申请的另一种实现方式中，终端设备302接收来自网络设备301的第一指示信息和第二指示信息，第一指示信息指示PUSCH传输的重复类型和额定重复次数，第二指示信息指示时域单元偏移。终端设备302根据时域单元偏移确定额定发送PUSCH的起始时域单元，并在K个时域单元上传输PUSCH，K个时域单元的起始时域单元为额定发送PUSCH的起始时域单元；在重复类型为重复类型A的情况下，K个时域单元中每个时域单元的符号数量为预设数量，例如12个或14个符号；在重复类型为重复类型B的情况下，K个时域单元中每个时域单元的符号数量小于或等于预设数量，例如小于或等于12个或14个符号。终端设备302接收取消指示，取消指示指示的取消资源和第k个时域单元上的指示用于传输PUSCH的资源有重叠，第k个时域单元不用于传输PUSCH；1≤k≤K。终端设备302在第k个时域单元的第一指定符号上，发送DMRS，第一指定符号为第k个时域单元中的后M1个符号，且不为取消指示指示的取消资源，M1为正整数；或，在第k个时域单元的第二指定符号上，发送DMRS，第二指定符号为第k个时域单元中的符号的前M2个符号，且不为取消指示指示的取消资源，M2为正整数。该种方式下，终端设备302可以利用第k个时域单元的符号发送DMRS，提高第k个时域单元的符号利用率。In another implementation manner of the present application, the terminal device 302 receives the first indication information and the second indication information from the network device 301, the first indication information indicates the repetition type and rated repetition number of PUSCH transmission, and the second indication information indicates Time domain unit offset. The terminal device 302 determines the starting time domain unit of the rated transmission PUSCH according to the time domain unit offset, and transmits the PUSCH on the K time domain units, and the starting time domain unit of the K time domain units is the starting time of the rated transmission of the PUSCH domain unit; when the repetition type is repetition type A, the number of symbols in each time domain unit in the K time domain units is a preset number, such as 12 or 14 symbols; in the case where the repetition type is repetition type B In this case, the number of symbols in each time-domain unit in the K time-domain units is less than or equal to a preset number, for example, less than or equal to 12 or 14 symbols. The terminal device 302 receives the cancellation instruction. The cancellation resource indicated by the cancellation instruction overlaps with the resource indicated on the kth time domain unit for transmitting PUSCH, and the kth time domain unit is not used for transmitting PUSCH; 1≤k≤K. The terminal device 302 sends the DMRS on the first designated symbol of the kth time domain unit, and the first designated symbol is the last M1 symbols in the kth time domain unit, and is not the cancellation resource indicated by the cancellation instruction, and M1 is A positive integer; or, on the second designated symbol of the kth time domain unit, the DMRS is sent, and the second designated symbol is the first M2 symbols of the symbols in the kth time domain unit, and is not the cancellation indicated by the cancellation indication resource, M2 is a positive integer. In this manner, the terminal device 302 can transmit the DMRS by using the symbols of the kth time domain unit, so as to improve the symbol utilization rate of the kth time domain unit.

在本申请的另一种实现方式中，终端设备302接收来自网络设备301的第一指示信息，第一指示信息指示PUSCH传输的重复类型，重复类型为重复类型B；根据传输***信息，确定第i次PUSCH传输对应的符号集合I，第i+1次PUSCH传输对应的符号集合J和额定DMRS占用的符号数量，额定DMRS占用的符号数量为第五数量；传输***信息包括时域单元边界信息和/或无效符号配置信息；其中，i为正整数。终端设备302在符号集合I上进行第i次PUSCH传输，在符号集合J上进行第i+1次PUSCH传输；符号集合I的最后一个DMRS符号与符号集合J的第一个符号之间的符号数小于第二阈值，且第i次PUSCH传输与第i+1次PUSCH传输的相位相同，在符号集合J上进行第i+1次PUSCH传输时，确定不发送DMRS或发送第六数量的DMRS，第六数量小于第五数量。该种方式下，通过不发送DMRS或减少DMRS的发送数量，可以减低第i+1次PUSCH传输中DMRS的开销，从而提升PUSCH传输性能。In another implementation manner of the present application, the terminal device 302 receives the first indication information from the network device 301, the first indication information indicates the repetition type of PUSCH transmission, and the repetition type is repetition type B; The symbol set I corresponding to the i-th PUSCH transmission, the symbol set J corresponding to the i+1th PUSCH transmission and the number of symbols occupied by the rated DMRS, the number of symbols occupied by the rated DMRS is the fifth number; the transmission splitting information includes time-domain unit boundary information and/or invalid symbol configuration information; where i is a positive integer. The terminal device 302 performs the i-th PUSCH transmission on the symbol set I, and performs the i+1-th PUSCH transmission on the symbol set J; the symbol between the last DMRS symbol of the symbol set I and the first symbol of the symbol set J The number is less than the second threshold, and the phase of the i-th PUSCH transmission and the i+1-th PUSCH transmission is the same, when the i+1-th PUSCH transmission is performed on the symbol set J, it is determined not to send DMRS or to send the sixth number of DMRS , the sixth quantity is smaller than the fifth quantity. In this manner, by not sending the DMRS or reducing the number of DMRSs sent, the DMRS overhead in the i+1th PUSCH transmission can be reduced, thereby improving the PUSCH transmission performance.

下面将结合附图对本申请实施例提供的PUSCH传输方法进行介绍。需要说明的是，介绍过程中，终端设备与网络设备之间交互的信息或数据的名称用于举例，并不构成对本申请实施例的限定。The PUSCH transmission method provided by the embodiments of the present application will be introduced below with reference to the accompanying drawings. It should be noted that, in the introduction process, the names of the information or data exchanged between the terminal device and the network device are used as examples, and do not constitute a limitation to the embodiments of the present application.

请参见图4，为本申请实施例一提供的PUSCH传输方法的流程示意图，该流程可以包括但不限于如下步骤。Please refer to FIG. 4 , which is a schematic flowchart of the PUSCH transmission method provided in Embodiment 1 of the present application, and the flowchart may include but not limited to the following steps.

步骤401，网络设备向终端设备发送第一指示信息和第二指示信息。相应的，终端设备接收来自网络设备的第一指示信息和第二指示信息。Step 401, the network device sends the first indication information and the second indication information to the terminal device. Correspondingly, the terminal device receives the first indication information and the second indication information from the network device.

其中，第一指示信息指示PUSCH传输的重复类型，即指示重复类型为重复类型A或重复类型B。在图4所示的实施例一中，第一指示信息指示重复类型为重复类型A。第一指示信息还指示额定重复次数K，额定重复次数指的是网络设备指示的transmission occasion的次数。由于重复类型为重复类型A，那么额定重复次数K，可以理解为额定发送PUSCH的K个时域单元，一个时域单元进行一次PUSCH传输。K为大于1的整数。The first indication information indicates the repetition type of PUSCH transmission, that is, indicates that the repetition type is repetition type A or repetition type B. In the first embodiment shown in FIG. 4 , the first indication information indicates that the repetition type is repetition type A. The first indication information also indicates the rated repetition number K, and the rated repetition number refers to the number of transmission occasions indicated by the network device. Since the repetition type is repetition type A, the rated number of repetitions K can be understood as K time-domain units for the rated transmission of PUSCH, and one time-domain unit performs one PUSCH transmission. K is an integer greater than 1.

第二指示信息指示时域单元偏移，在图4所示的实施例一中，时域单元为12个或14个符号。例如，在NR中，时域单元为时隙，为14个符号；在长期演进(long term evolution，LTE)中，时域单元为子帧，为12个符号。下面以时域单元为时隙为例进行介绍，那么第二指示信息可指示时隙偏移K ₂。 The second indication information indicates the time-domain unit offset. In Embodiment 1 shown in FIG. 4 , the time-domain unit is 12 or 14 symbols. For example, in NR, the time-domain unit is a time slot, which is 14 symbols; in long term evolution (long term evolution, LTE), the time-domain unit is a subframe, which is 12 symbols. The following description will be given by taking the time domain unit as a time slot as an example, then the second indication information may indicate the time slot offset K ₂ .

步骤402，终端设备根据时域单元偏移确定额定发送PUSCH的起始时域单元。Step 402 , the terminal device determines the starting time domain unit for sending the PUSCH at the rated time according to the time domain unit offset.

额定发送PUSCH的起始时域单元，也可以描述为能够发送PUSCH的起始时域单元，或用于发送PUSCH的起始时域单元等。The initial time domain unit for sending the PUSCH is rated, and may also be described as the initial time domain unit capable of sending the PUSCH, or the initial time domain unit for sending the PUSCH, or the like.

终端设备可根据时域单元偏移确定额定发送PUSCH的起始时域单元，例如根据时隙偏移确定额定发送PUSCH的起始时隙。额定发送PUSCH的起始时隙，即按照如下公式确定的K _s，该公式中各参数的含义可参见重复类型中对各参数的解释。 The terminal device may determine the starting time-domain unit for sending the PUSCH according to the time-domain unit offset, for example, determining the starting time slot for sending the PUSCH according to the time slot offset. The initial time slot for the nominal transmission of PUSCH, that is, K _s determined according to the following formula, the meaning of each parameter in the formula can be referred to the explanation of each parameter in the repetition type.

在一种实现方式中，起始时隙的上一个时隙为第一时隙，第一时隙包括下行符号和非下行符号，非下行符号可以包括上行符号和/或灵活符号。在另一种实现方式中，额定发送PUSCH的K个时隙包括第一时隙，且第一时隙不满足配置的长度和起始位置，例如开始与长度指示信息SLIV指示的长度和起始位置。In an implementation manner, the previous time slot of the initial time slot is the first time slot, the first time slot includes downlink symbols and non-downlink symbols, and the non-downlink symbols may include uplink symbols and/or flexible symbols. In another implementation manner, the K timeslots for which the PUSCH is scheduled to be sent include the first timeslot, and the first timeslot does not meet the configured length and starting position, for example, the length and starting position indicated by the start and length indication information SLIV Location.

第一时隙可以理解为特殊时隙。特殊时隙有可能不满足开始与长度指示信息SLIV，按照协议的规定，此时特殊时隙上不发送PUSCH，从而造成特殊时隙中非下行符号的浪费。而本实施例可以利用特殊时隙中的非下行符号进行PUSCH传输，从而提高特殊时隙中的非下行符号的利用率。The first time slot can be understood as a special time slot. The special time slot may not satisfy the start and length indication information SLIV. According to the stipulations of the protocol, the PUSCH is not sent on the special time slot at this time, thus causing waste of non-downlink symbols in the special time slot. However, in this embodiment, the non-downlink symbols in the special time slot can be used for PUSCH transmission, thereby improving the utilization rate of the non-downlink symbols in the special time slot.

重复类型、额定重复次数和时隙偏移可以理解为PUSCH传输参数，终端设备除了接收来自网络设备的这两种参数外，还可以接收其它PUSCH传输参数，例如PUSCH的起始符号位置S与连续符号个数L，PUSCH映射类型，以及DMRS高层参数。The repetition type, rated repetition times, and time slot offset can be understood as PUSCH transmission parameters. In addition to receiving these two parameters from the network device, the terminal device can also receive other PUSCH transmission parameters, such as the starting symbol position S of PUSCH and the continuous The number of symbols L, the PUSCH mapping type, and the DMRS high-level parameters.

其中，PUSCH的起始符号位置S与连续符号个数L，可参见重复类型A和重复类型B中对S与L的描述，S的取值范围可以是{0,1,2,...,13}，L为正整数。PUSCH映射类型用于指示PUSCH映射类型A或PUSCH映射类型B，在重复类型为重复类型A的情况下，PUSCH映射类型可以是PUSCH映射类型A或PUSCH映射类型B；在重复类型为重复类型B的情况下，PUSCH映射类型可以是PUSCH映射类型B。DMRS高层参数可以包括dmrs-TypeA-Position和dmrs-AdditionalPosition。dmrs-TypeA-Position用于指示第一个DMRS所在符号的位置l ₀，在重复类型为重复类型B的情况下，l ₀＝0。dmrs-AdditionalPosition用于联合确定DMRS符合的位置与个数。 Among them, the starting symbol position S of PUSCH and the number of consecutive symbols L, please refer to the description of S and L in repetition type A and repetition type B. The value range of S can be {0, 1, 2, ... ,13}, L is a positive integer. The PUSCH mapping type is used to indicate PUSCH mapping type A or PUSCH mapping type B. In the case where the repetition type is repetition type A, the PUSCH mapping type can be PUSCH mapping type A or PUSCH mapping type B; In this case, the PUSCH mapping type may be PUSCH mapping type B. DMRS higher layer parameters may include dmrs-TypeA-Position and dmrs-AdditionalPosition. dmrs-TypeA-Position is used to indicate the position l ₀ of the symbol where the first DMRS is located. In the case that the repetition type is repetition type B, l ₀ =0. dmrs-AdditionalPosition is used to jointly determine the position and number of DMRS conformances.

进一步的，在重复类型为重复类型A的情况下，终端设备可根据起始符号位置S与连续符号个数L，额定重复次数K，以及额定发送PUSCH的起始时隙，确定每次PUSCH传输的时隙以及占用的符号位置。Further, in the case where the repetition type is repetition type A, the terminal device can determine each PUSCH transmission according to the starting symbol position S and the number of consecutive symbols L, the rated number of repetitions K, and the rated starting time slot for sending PUSCH. time slots and occupied symbol positions.

进一步的，终端设备可根据PUSCH映射类型和DMRS高层参数，确定在每次PUSCH 传输中DMRS占用的额定符号数量以及各个DMRS所在符号的位置。可以理解的是，各个DMRS所在符号的位置为额定位置，额定位置和额定符号数量即根据PUSCH映射类型和DMRS高层参数确定的，不考虑其它因素。本申请考虑时域，至于每次PUSCH传输中DMRS占用的频域资源不作限定，视具体情况而定。Further, the terminal device may determine the rated number of symbols occupied by the DMRS in each PUSCH transmission and the positions of the symbols where each DMRS is located according to the PUSCH mapping type and the DMRS high-level parameters. It can be understood that the positions of the symbols where each DMRS is located are rated positions, and the rated positions and the rated number of symbols are determined according to the PUSCH mapping type and DMRS high-level parameters, and other factors are not considered. The present application considers the time domain, and the frequency domain resources occupied by the DMRS in each PUSCH transmission are not limited, depending on the specific situation.

步骤403，终端设备在第一时域单元中，确定PUSCH传输符号。Step 403, the terminal device determines the PUSCH transmission symbol in the first time domain unit.

终端设备可通过如下六种方式中的一种，在特殊时隙中确定PUSCH传输符号。The terminal device can determine the PUSCH transmission symbol in the special time slot in one of the following six ways.

方式1，终端设备将特殊时隙中的上行符号确定为PUSCH传输符号，即PUSCH传输符号为特殊时隙中的上行符号。 Mode 1, the terminal device determines the uplink symbol in the special time slot as the PUSCH transmission symbol, that is, the PUSCH transmission symbol is the uplink symbol in the special time slot.

方式2，终端设备将特殊时隙中的非下行符号确定为PUSCH传输符号，即PUSCH传输符号为特殊时隙中的灵活符号与上行符号。Mode 2, the terminal device determines the non-downlink symbols in the special time slot as PUSCH transmission symbols, that is, the PUSCH transmission symbols are flexible symbols and uplink symbols in the special time slot.

方式3，终端设备将特殊时隙中从第n个灵活符号开始的非下行符号确定为PUSCH传输符号，即PUSCH传输符号为特殊时隙中从第n个灵活符号开始的非下行符号确定为PUSCH传输符号。其中，1≤n≤N，N为特殊时隙中灵活符号的个数，n和N为整数，n可以是预设值或由网络设备配置，例如n＝2。Mode 3: The terminal device determines the non-downlink symbol starting from the n-th flexible symbol in the special time slot as the PUSCH transmission symbol, that is, the PUSCH transmission symbol is the non-downlink symbol starting from the n-th flexible symbol in the special time slot and determines as the PUSCH transmission symbols. Wherein, 1≤n≤N, N is the number of flexible symbols in a special time slot, n and N are integers, and n may be a preset value or configured by a network device, for example, n=2.

示例性的，可参见图5所示的示例图。图5中，假设额定发送PUSCH的起始时隙的上一个时隙为特殊时隙，深灰色表示特殊时隙中的下行符号，浅灰色表示特殊时隙中的灵活符号，白色表示上行符号，斜条纹表示PUSCH传输占用的符号，标注DMRS的斜条纹表示DMRS传输占用的符号，图5以单符号DMRS，位置在pos2为例。图5中，S＝0，L＝12，按照协议规定，第1次PUSCH传输占用特殊时隙的下一个时隙中从0开始的连续的12个符号，DMRS所在符号的位置为pos2。For example, see the example diagram shown in FIG. 5 . In Figure 5, it is assumed that the previous time slot of the initial time slot for the rated transmission of PUSCH is a special time slot, dark gray represents the downlink symbol in the special time slot, light gray represents the flexible symbol in the special time slot, white represents the uplink symbol, The diagonal stripes represent the symbols occupied by PUSCH transmission, and the diagonal stripes marked with DMRS represent the symbols occupied by DMRS transmission. Figure 5 takes a single-symbol DMRS, which is located at pos2 as an example. In Figure 5, S=0, L=12, according to the protocol, the first PUSCH transmission occupies 12 consecutive symbols starting from 0 in the next time slot of the special time slot, and the position of the symbol where the DMRS is located is pos2.

按照上述方式1，第1次PUSCH传输可以占用特殊时隙中的上行符号，第2次PUSCH传输占用的符号即为协议规定的第1次PUSCH占用的符号。According to the above method 1, the first PUSCH transmission may occupy the uplink symbols in the special time slot, and the symbols occupied by the second PUSCH transmission are the symbols occupied by the first PUSCH specified in the protocol.

按照上述方式2，第1次PUSCH传输可以占用特殊时隙中的非下行符号(即灵活符号和上行符号)，第2次PUSCH传输占用的符号即为协议规定的第1次PUSCH占用的符号。According to the above method 2, the first PUSCH transmission can occupy non-downlink symbols (ie flexible symbols and uplink symbols) in the special time slot, and the symbols occupied by the second PUSCH transmission are the symbols occupied by the first PUSCH specified in the protocol.

按照上述方式3，假设n＝2，第1次PUSCH传输可以占用特殊时隙中从第2个灵活符号开始的非下行符号，第2次PUSCH传输占用的符号即为协议规定的第1次PUSCH占用的符号。According to the above method 3, assuming n=2, the first PUSCH transmission can occupy the non-downlink symbols starting from the second flexible symbol in the special time slot, and the symbol occupied by the second PUSCH transmission is the first PUSCH specified by the protocol. Occupied symbols.

方式4，PUSCH传输符号为特殊时隙中的上行符号与DCI指示的上行符号之间的交集。In mode 4, the PUSCH transmission symbol is the intersection between the uplink symbol in the special time slot and the uplink symbol indicated by the DCI.

示例性的，可参见图6所示的示例图。图6中，S＝0，L＝12，按照协议规定，第1次PUSCH传输占用特殊时隙的下一个时隙中从0开始的连续的12个符号，DMRS所在符号的位置为pos2，DCI指示的上行符号为第9个至第12个符号。按照方式4，第1次PUSCH传输可以占用特殊时隙中第9个至第12个符号，第2次PUSCH传输占用的符号即为协议规定的第1次PUSCH占用的符号。For example, see the example diagram shown in FIG. 6 . In Figure 6, S=0, L=12, according to the protocol, the first PUSCH transmission occupies 12 consecutive symbols starting from 0 in the next time slot of the special time slot, the position of the symbol where the DMRS is located is pos2, and the DCI The indicated upstream symbols are the 9th to 12th symbols. According to Mode 4, the 9th to 12th symbols in the special time slot may be occupied by the first PUSCH transmission, and the symbols occupied by the second PUSCH transmission are the symbols occupied by the first PUSCH specified in the protocol.

方式5，PUSCH传输符号为特殊时隙中的非下行符号与DCI指示的上行符号之间的交集。In mode 5, the PUSCH transmission symbol is the intersection between the non-downlink symbols in the special time slot and the uplink symbols indicated by the DCI.

方式6，PUSCH传输符号为特殊时隙中从第n个灵活符号开始的非下行符号与DCI指示的上行符号之间的交集，1≤n≤N，N为特殊时隙中灵活符号的个数，n和N为整数，n可以是预设值或由网络设备配置，例如n＝2。Mode 6, the PUSCH transmission symbol is the intersection between the non-downlink symbol starting from the nth flexible symbol in the special time slot and the uplink symbol indicated by the DCI, 1≤n≤N, N is the number of flexible symbols in the special time slot , n and N are integers, and n can be a preset value or configured by a network device, for example, n=2.

步骤404，终端设备在PUSCH传输符号上，进行PUSCH传输。相应的，网络设备在PUSCH传输符号上，接收PUSCH。Step 404, the terminal device performs PUSCH transmission on the PUSCH transmission symbol. Correspondingly, the network device receives the PUSCH on the PUSCH transmission symbol.

由上述方式1至方式6可知，在特殊时隙中的非下行符号传输PUSCH时，PUSCH占用的符号数量可以不局限于L，视具体情况而定。需要说明的是，在特殊时隙中传输PUSCH时，DMRS的发送数量以及所在符号的位置，既可以根据PUSCH映射类型和DMRS高层参数确定，也可以根据额外规则确定。例如，将表2中pos0至pos4的值x改为14-x，可得到如下表3。It can be known from the above manners 1 to 6 that when the PUSCH is transmitted by the non-downlink symbols in the special time slot, the number of symbols occupied by the PUSCH may not be limited to L, depending on the specific situation. It should be noted that, when PUSCH is transmitted in a special time slot, the number of DMRS sent and the position of the symbol may be determined according to the PUSCH mapping type and DMRS high-level parameters, or may be determined according to additional rules. For example, by changing the value x of pos0 to pos4 in Table 2 to 14-x, the following Table 3 can be obtained.

表3table 3

在图4所示的实施例一中，终端设备可以利用第一时域单元中的非下行符号进行PUSCH传输，从而减少上行符号资源的浪费。In the first embodiment shown in FIG. 4 , the terminal device can use the non-downlink symbols in the first time domain unit to perform PUSCH transmission, thereby reducing the waste of uplink symbol resources.

基于实施例一，在一种实现方式中，终端设备根据PUSCH映射类型和DMRS高层参数，确定在第二时隙中DMRS占用的额定符号数量为第一数量，在第二时隙进行PUSCH传输时，可以不发送DMRS或发送第二数量的DMRS。第二时隙为第一时隙的下一个时隙，且第二时隙满足开始与长度指示信息，且属于K个时隙。第二数量小于第一数量。Based on Embodiment 1, in an implementation manner, the terminal device determines, according to the PUSCH mapping type and DMRS high-level parameters, that the rated number of symbols occupied by the DMRS in the second time slot is the first number, and when PUSCH transmission is performed in the second time slot , the DMRS may not be sent or the second number of DMRS may be sent. The second time slot is the next time slot of the first time slot, and the second time slot satisfies the start and length indication information, and belongs to K time slots. The second quantity is smaller than the first quantity.

若第一数量为1个，那么终端设备在第二时隙进行PUSCH传输时，可以不发送DMRS，由第一时隙发送的DMRS对第一时隙发送的PUSCH进行信道估计。If the first number is 1, then when the terminal device performs PUSCH transmission in the second time slot, the DMRS may not be sent, and the DMRS sent in the first time slot performs channel estimation on the PUSCH sent in the first time slot.

示例性的，第一时隙为特殊时隙，第二时隙为特殊时隙的下一个时隙，S＝0，L＝10，第一数量为1个，这个DMRS所在符号的位置在pos3，可参见图7a所示。按照协议规定，第1次PUSCH传输在特殊时隙的下一个时隙上传输，第1次PUSCH传输中DMRS所在符号的位置为pos3；按照上述方式2，第1次PUSCH传输在特殊时隙的非下行符号上传输，第1次PUSCH传输中DMRS所在符号的位置为pos3，第2次PUSCH传输在特殊时隙的下一个时隙传输，第2次PUSCH传输中不发送DMRS。Exemplarily, the first time slot is a special time slot, the second time slot is the next time slot of the special time slot, S=0, L=10, the first number is 1, and the position of the symbol where the DMRS is located is pos3 , as shown in Figure 7a. According to the protocol, the first PUSCH transmission is transmitted on the next time slot of the special time slot, and the position of the symbol where the DMRS is located in the first PUSCH transmission is pos3; For transmission on non-downlink symbols, the position of the symbol where the DMRS is located in the first PUSCH transmission is pos3, the second PUSCH transmission is transmitted in the next time slot of the special time slot, and the DMRS is not sent in the second PUSCH transmission.

若第一数量大于1个，那么终端设备在第二时隙进行PUSCH传输时，可以发送第二数量的DMRS，第二时隙中发送的第二数量的DMRS与第一时隙中发送的DMRS用于对第一时隙和第二时隙发送的PUSCH进行联合信道估计。其中，第二数量小于第一数量，例如第一数量为2个，第二数量为1个；或，第一数量为3个，第二数量为2个或1个。If the first number is greater than 1, the terminal device can send a second number of DMRSs when performing PUSCH transmission in the second time slot, and the second number of DMRSs sent in the second time slot is the same as the DMRS sent in the first time slot. It is used to perform joint channel estimation on the PUSCH sent in the first time slot and the second time slot. Wherein, the second quantity is smaller than the first quantity, for example, the first quantity is 2 and the second quantity is 1; or, the first quantity is 3 and the second quantity is 2 or 1.

示例性的，第一时隙为特殊时隙，第二时隙为特殊时隙的下一个时隙，S＝0，L＝10，第一数量为2个，这个DMRS所在符号的位置在pos3和pos9，可参见图7b所示。按照协议规定，第1次PUSCH传输在特殊时隙的下一个时隙上传输，第1次PUSCH传输中DMRS所在符号的位置为pos3和pos9；按照上述方式2，第1次PUSCH传输在特殊时隙的非下行符号上传输，第1次PUSCH传输中DMRS所在符号的位置为pos3，第2次PUSCH传输在特殊时隙的下一个时隙传输，第2次PUSCH传输中发送一个DMRS，该DMRS所在符号的位置为pos3或pos9，图7b以pos9为例。Exemplarily, the first time slot is a special time slot, the second time slot is the next time slot of the special time slot, S=0, L=10, the first number is 2, and the position of the symbol where the DMRS is located is at pos3 and pos9, as shown in Figure 7b. According to the protocol, the first PUSCH transmission is transmitted on the next time slot of the special time slot, and the positions of the DMRS symbols in the first PUSCH transmission are pos3 and pos9; according to the above method 2, the first PUSCH transmission is in the special time It is transmitted on the non-downlink symbols of the slot, the position of the symbol where the DMRS is located in the first PUSCH transmission is pos3, the second PUSCH transmission is transmitted in the next time slot of the special time slot, and a DMRS is sent in the second PUSCH transmission, the DMRS The position of the symbol is pos3 or pos9, and Fig. 7b takes pos9 as an example.

可选的，终端设备在发送第二数量的DMRS时，第二时隙中第i个DMRS所在符号的位置，与任意一次PUSCH传输中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤第二数量，j为第一数量与所述第二数量之间的差值，i和j为正整数。Optionally, when the terminal device sends the second number of DMRSs, there is a symbol offset between the position of the symbol where the i-th DMRS is located in the second time slot and the position of the symbol where the i+j-th DMRS is located in any PUSCH transmission. ; 1≤i≤second number, j is the difference between the first number and the second number, and i and j are positive integers.

例如，第一数量为3个，第二数量为2个，那么j＝1，在i＝1时，第二时隙中第1个DMRS所在符号的位置，与任意一次PUSCH传输中第2个DMRS所在符号的位置，存在符号偏移；在i＝2时，第二时隙中第2个DMRS所在符号的位置，与任意一次PUSCH传输中第3个DMRS所在符号的位置，存在符号偏移。其中，符号偏移的具体数值在本申请中不作限定。For example, if the first number is 3 and the second number is 2, then j=1, when i=1, the position of the symbol where the first DMRS in the second time slot is located is the same as the second one in any PUSCH transmission. The position of the symbol where the DMRS is located has a symbol offset; when i=2, the position of the symbol where the second DMRS is located in the second time slot has a symbol offset from the position of the symbol where the third DMRS is located in any PUSCH transmission . The specific value of the symbol offset is not limited in this application.

再例如，第一时隙中最后一个DMRS所在符号的位置为D1，第二时隙中第一个DMRS所在符号的额定位置为D2，那么在第二时隙进行PUSCH传输时，第二时隙剩余DMRS所在符号的位置可移动到max(D1+D2-14，S)。For another example, the position of the symbol where the last DMRS in the first time slot is located is D1, and the nominal position of the symbol where the first DMRS in the second time slot is located is D2, then when PUSCH transmission is performed in the second time slot, the second time slot The position of the symbol where the remaining DMRS are located can be moved to max(D1+D2-14, S).

可以理解的是，在第二时隙中减少DMRS的发送数量的情况下，第二时隙中剩余DMRS所在符号的位置不必与额定位置相同，额定位置即根据PUSCH映射类型和DMRS高层参数确定的DMRS所在符号的位置。It can be understood that in the case of reducing the number of DMRS sent in the second time slot, the position of the symbol where the remaining DMRS in the second time slot is located does not have to be the same as the rated position, and the rated position is determined according to the PUSCH mapping type and DMRS high-level parameters. The location of the symbol where the DMRS is located.

示例性的，可参见图7c所示，按照协议规定，第1次PUSCH传输在特殊时隙的下一个时隙上传输，第1次PUSCH传输中DMRS所在符号的位置为pos2和pos9；按照上述方式2，第1次PUSCH传输在特殊时隙的非下行符号上传输，第1次PUSCH传输中DMRS所在符号的位置为pos2，第2次PUSCH传输在特殊时隙的下一个时隙传输，第2次PUSCH传输中发送一个DMRS(减少发送协议规定的第一个DMRS，即pos3对应的DMRS)，该DMRS所在符号的位置为pos1，相比协议规定的第1次PUSCH传输中第2个DMRS所在符号的位置pos9，偏移了八个符号。7c, according to the protocol, the first PUSCH transmission is transmitted on the next time slot of the special time slot, and the positions of the symbols where the DMRS is located in the first PUSCH transmission are pos2 and pos9; according to the above Mode 2, the first PUSCH transmission is transmitted on the non-downlink symbol of the special time slot, the position of the symbol where the DMRS is located in the first PUSCH transmission is pos2, the second PUSCH transmission is transmitted in the next time slot of the special time slot, and the first time Send a DMRS in 2 PUSCH transmissions (reduce the first DMRS specified in the transmission protocol, that is, the DMRS corresponding to pos3), the position of the symbol where the DMRS is located is pos1, compared with the 2nd DMRS in the first PUSCH transmission specified by the protocol The position of the symbol, pos9, is offset by eight symbols.

基于实施例一，终端设备根据PUSCH映射类型和DMRS高层参数，确定在第二时隙中DMRS占用的额定符号数量为第一数量，在第一时隙中的PUSCH传输中的最后一个DMRS所在符号的位置与第二时隙的起始符号的位置之间的符号数小于第一阈值的情况下，终端设备在第二时隙进行PUSCH传输时，可以不发送DMRS或发送第二数量的DMRS。第二时隙为第一时隙的下一个时隙，且第二时隙满足开始与长度指示信息，且属于K个时隙。其中，第一阈值可以是L。第二数量小于第一数量。终端设备在第二时隙不发送DMRS或发送第二数量的DMRS，可参见上述方式对其的详细描述，在此不再赘述。Based on Embodiment 1, the terminal device determines, according to the PUSCH mapping type and DMRS high-level parameters, that the number of rated symbols occupied by the DMRS in the second time slot is the first number, and the symbol where the last DMRS is located in the PUSCH transmission in the first time slot When the number of symbols between the position of the first time slot and the position of the start symbol of the second time slot is less than the first threshold, the terminal device may not send DMRS or send a second number of DMRS when performing PUSCH transmission in the second time slot. The second time slot is the next time slot of the first time slot, and the second time slot satisfies the start and length indication information, and belongs to K time slots. Wherein, the first threshold may be L. The second quantity is smaller than the first quantity. The terminal equipment does not transmit DMRS or transmits the second quantity of DMRS in the second time slot, and the detailed description thereof can be referred to in the above manner, and details are not repeated here.

请参见图8，为本申请实施例二提供的PUSCH传输方法的流程示意图，该流程可以包括但不限于如下步骤。Please refer to FIG. 8 , which is a schematic flowchart of a PUSCH transmission method provided in Embodiment 2 of the present application, and the flowchart may include but not limited to the following steps.

步骤501，网络设备向终端设备发送第一指示信息和第二指示信息。相应的，终端设备接收来自网络设备的第一指示信息和第二指示信息。Step 501, the network device sends the first indication information and the second indication information to the terminal device. Correspondingly, the terminal device receives the first indication information and the second indication information from the network device.

其中，第一指示信息指示PUSCH传输的重复类型，即指示重复类型为重复类型A或重复类型B。第一指示信息还指示额定重复次数K，额定重复次数指的是网络设备指示的transmission occasion(针对重复类型A)或nominal repetition(针对重复类型B)的次数。额定重复次数K，可以理解为额定发送PUSCH的K个时域单元，一个时域单元进行一次PUSCH传输。K为大于1的整数。The first indication information indicates the repetition type of PUSCH transmission, that is, indicates that the repetition type is repetition type A or repetition type B. The first indication information also indicates the rated repetition number K, and the rated repetition number refers to the number of transmission occasion (for repetition type A) or nominal repetition (for repetition type B) indicated by the network device. The rated number of repetitions K can be understood as K time-domain units for the rated transmission of PUSCH, and one time-domain unit performs one PUSCH transmission. K is an integer greater than 1.

在重复类型为重复类型A的情况下，K个时域单元中每个时域单元的符号数量为预设数量，例如12个或14个符号，NR以14个符号为例。在重复类型为重复类型B的情况下，K个时域单元中每个时域单元的符号数量小于或等于预设数量，例如小于或等于12个或14个符号。When the repetition type is repetition type A, the number of symbols in each time-domain unit in the K time-domain units is a preset number, for example, 12 or 14 symbols, and NR takes 14 symbols as an example. When the repetition type is repetition type B, the number of symbols in each of the K time-domain units is less than or equal to a preset number, for example, less than or equal to 12 or 14 symbols.

第二指示信息指示时域单元偏移。The second indication information indicates the time domain unit offset.

步骤502，终端设备根据时域单元偏移确定额定发送PUSCH的起始时域单元。Step 502, the terminal device determines the starting time domain unit for sending the PUSCH at a rated time according to the time domain unit offset.

步骤503，终端设备在K个时域单元上传输PUSCH，K个时域单元的起始时域单元为额定发送PUSCH的起始时域单元。Step 503, the terminal device transmits the PUSCH on the K time domain units, and the starting time domain unit of the K time domain units is the starting time domain unit for sending the PUSCH rated for.

步骤501至步骤503不仅适用于重复类型A下的PUSCH重复传输，还适用于重复类型B下的PUSCH重复传输。在图8所示的实施例二中，不对两种重复类型进行区分。Steps 501 to 503 are not only applicable to repeated PUSCH transmission under repetition type A, but also applicable to repeated PUSCH transmission under repetition type B. In the second embodiment shown in FIG. 8, the two repetition types are not distinguished.

步骤504，终端设备接收来自网络设备的取消指示。Step 504, the terminal device receives the cancellation instruction from the network device.

其中，取消指示指示的取消资源和第k个时域单元上的指示用于传输PUSCH的资源有重叠，第k个时域单元不用于传输PUSCH，1≤k≤K，k和K均为整数。Among them, the cancellation resource indicated by the cancellation indication overlaps with the resource indicated on the kth time domain unit for transmitting PUSCH, and the kth time domain unit is not used for transmitting PUSCH, 1≤k≤K, k and K are both integers .

步骤505a，终端设备在第k个时域单元的第一指定符号上，发送DMRS。Step 505a, the terminal device transmits the DMRS on the first designated symbol of the kth time domain unit.

其中，第一指定符号为第k个时域单元中的后M1个符号，且不为取消指示指示的取消资源，M1为正整数，例如为1或2。Wherein, the first designated symbol is the last M1 symbols in the kth time domain unit, and is not the cancellation resource indicated by the cancellation indication, and M1 is a positive integer, such as 1 or 2.

按照协议规定，CI指示的取消资源和第k个时域单元上的指示用于传输PUSCH的资源有重叠，第k个时域单元不用于传输PUSCH，也不用于传输DMRS。而本申请，在第k个时域单元的第一指定符号上，发送DMRS，从而提高非下行符号的利用率。According to the protocol, the cancellation resource indicated by the CI overlaps with the resource indicated on the kth time domain unit for transmitting PUSCH, and the kth time domain unit is not used for transmitting PUSCH, nor for transmitting DMRS. However, in the present application, the DMRS is sent on the first designated symbol of the kth time domain unit, thereby improving the utilization rate of non-downlink symbols.

可选的，终端设备在第k+1个时域单元上，确定不发送DMRS或发送第三数量的DMRS，第三数量小于额定第k+1个时域单元上发送的DMRS数量，且第k+1个时域单元属于K个时域单元。其中，额定第k+1个时域单元上发送的DMRS数量，指的是由PUSCH映射类型和DMRS高层参数确定的，第k+1个时域单元上发送的DMRS数量。Optionally, on the k+1th time domain unit, the terminal device determines not to send DMRS or to send a third number of DMRSs, where the third number is less than the rated number of DMRSs sent on the k+1th time domain unit, and The k+1 time domain units belong to the K time domain units. The number of DMRSs to be sent on the k+1 th time domain unit refers to the number of DMRSs sent on the k+1 th time domain unit, which is determined by the PUSCH mapping type and DMRS high-level parameters.

可选的，终端设备在发送第三数量的DMRS时，第k+1个时域单元中第i个DMRS所在符号的位置，与额定第k+1个时域单元中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤第三数量，0≤j，j为额定第k+1个时域单元上发送的DMRS数量与第三数量之间的差值。其中，额定第k+1个时域单元中第i+j个DMRS所在符号的位置，指的是由PUSCH映射类型和DMRS高层参数确定的DMRS所在符号的位置。第三数量的DMRS与第k个时域单元中发送的DMRS，用于对第k个时域单元和第k+1个时域单元中发送的PUSCH进行联合信道估计。Optionally, when the terminal device sends the third number of DMRSs, the position of the symbol where the i-th DMRS in the k+1-th time domain unit is located is different from the i+j-th DMRS in the rated k+1-th time-domain unit. At the position of the symbol, there is a symbol offset; 1≤i≤the third number, 0≤j, j is the difference between the number of DMRSs sent on the rated k+1 th time domain unit and the third number. Wherein, the position of the symbol where the i+jth DMRS is located in the rated k+1th time domain unit refers to the location of the symbol where the DMRS is located determined by the PUSCH mapping type and the DMRS high-level parameters. The third number of DMRSs and the DMRSs sent in the kth time domain unit are used to perform joint channel estimation on the PUSCH sent in the kth time domain unit and the k+1th time domain unit.

示例的，可参见图9a所示，PUSCH重复类型为重复类型B，S＝0，L＝8，dmrs-AdditionalPosition＝pos0。按照协议规定，第k个时域单元不用于传输PUSCH，也不用于传输DMRS，在第k+1个时域单元中的第一个符号上传输DMRS；而本申请中，第k个时域单元的最后一个上行符号上传输DMRS，在第k+1个时域单元中的第一个符号上不传输DMRS。For example, as shown in FIG. 9a, the PUSCH repetition type is repetition type B, S=0, L=8, and dmrs-AdditionalPosition=pos0. According to the protocol, the kth time domain unit is not used to transmit PUSCH, nor is it used to transmit DMRS, and DMRS is transmitted on the first symbol in the k+1th time domain unit; and in this application, the kth time domain The DMRS is transmitted on the last uplink symbol of the unit, and the DMRS is not transmitted on the first symbol in the k+1 th time domain unit.

可选的，第k+1个时域单元中有additional DMRS，那么在第k+1个时域单元发送DMRS时可少发送一个DMRS，且剩下的DMRS所在符号的位置可移动，例如后移1或2个符号。Optionally, if there is an additional DMRS in the k+1 th time domain unit, then one less DMRS can be sent when the k+1 th time domain unit sends DMRS, and the position of the symbol where the remaining DMRS is located can be moved. Shift 1 or 2 symbols.

步骤505b，终端设备在第k个时域单元的第二指定符号上，发送DMRS。Step 505b, the terminal device sends the DMRS on the second designated symbol of the kth time domain unit.

其中，第二指定符号为第k个时域单元中的前M2个符号，且不为取消指示指示的取消资源，M2为正整数。Wherein, the second designated symbol is the first M2 symbols in the kth time domain unit, and is not the cancellation resource indicated by the cancellation indication, and M2 is a positive integer.

可选的，终端设备在第k-1个时域单元上，确定不发送DMRS或发送第四数量的DMRS，第四数量小于额定第k-1个时域单元上发送的DMRS数量，且第k-1个时域单元属于K个时域单元。其中，额定第k-1个时域单元上发送的DMRS数量，指的是由PUSCH映射类型和DMRS高层参数确定的，第k-1个时域单元上发送的DMRS数量。Optionally, on the k-1 th time domain unit, the terminal device determines not to send DMRS or to send a fourth number of DMRSs, where the fourth number is less than the rated number of DMRS sent on the k-1 th time domain unit, and the The k-1 time domain units belong to the K time domain units. Wherein, the number of DMRSs sent on the k-1th time domain unit refers to the number of DMRSs sent on the k-1th time domain unit, which is determined by the PUSCH mapping type and the DMRS high-level parameters.

可选的，终端设备在发送第四数量的DMRS时，第k-1个时域单元中第i个DMRS所在符号的位置，与额定第k-1个时域单元中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤第四数量，0≤j，j为额定第k-1个时域单元上发送的DMRS数量与第四数量之间的差值。其中，额定第k-1个时域单元中第i+j个DMRS所在符号的位置，指的是由PUSCH映射类型和DMRS高层参数确定的DMRS所在符号的位置。第四数量的DMRS与第k个时域单元中发送的DMRS，用于对第k个时域单元和第k-1个时域单元中发送的PUSCH进行联合信道估计。Optionally, when the terminal device transmits the fourth number of DMRSs, the position of the symbol where the i-th DMRS in the k-1 th time domain unit is located is different from the i+j th DMRS in the rated k-1 th time domain unit. At the position of the symbol, there is a symbol offset; 1≤i≤the fourth number, 0≤j, j is the difference between the number of DMRSs sent on the rated k-1 th time domain unit and the fourth number. The position of the symbol where the i+j th DMRS is located in the rated k-1 th time domain unit refers to the location of the symbol where the DMRS is located, which is determined by the PUSCH mapping type and the DMRS high-level parameters. The fourth number of DMRSs and the DMRSs sent in the kth time domain unit are used to perform joint channel estimation on the PUSCH sent in the kth time domain unit and the k-1th time domain unit.

示例的，可参见图9b所示，PUSCH重复类型为重复类型B，S＝0，L＝9，dmrs-AdditionalPosition＝pos1。按照协议规定，第k个时域单元不用于传输PUSCH，也不用于传输DMRS，在第k-1个时域单元中的第一个符号和第5个符号上传输DMRS；而本申请中，第k个时域单元的第一个上行符号上传输DMRS，在第k-1个时域单元中的第一个符号上传输DMRS。For example, as shown in FIG. 9b, the PUSCH repetition type is repetition type B, S=0, L=9, and dmrs-AdditionalPosition=pos1. According to the protocol, the kth time domain unit is not used to transmit PUSCH, nor is it used to transmit DMRS, and the DMRS is transmitted on the first symbol and the fifth symbol in the k-1th time domain unit; and in this application, The DMRS is transmitted on the first uplink symbol of the kth time domain unit, and the DMRS is transmitted on the first symbol in the k-1th time domain unit.

可选的，第k-1个时域单元中有additional DMRS，那么在第k-1个时域单元发送DMRS时可少发送一个DMRS，且剩下的DMRS所在符号的位置可移动，例如前移1或2个符号。Optionally, if there is an additional DMRS in the k-1 th time domain unit, then one less DMRS can be sent when the DMRS is sent in the k-1 th time domain unit, and the position of the symbol where the remaining DMRS is located can be moved. Shift 1 or 2 symbols.

需要说明的是，步骤505a与步骤505b是并列关系，则一执行即可。步骤505a与步骤505b中存在符号偏移可参考图7c的描述。It should be noted that, step 505a and step 505b are in a parallel relationship, and can be executed as soon as possible. If there is a symbol offset in step 505a and step 505b, please refer to the description of FIG. 7c.

在图8所示的实施例二中，取消指示指示的取消资源和第k个时域单元上的指示用于传输PUSCH的资源有重叠，终端设备在第k个时域单元不传输PUSCH，在第k个时域单元的第一指定符号上，发送DMRS，或在第k个时域单元的第二指定符号上，发送DMRS，从而可以利用第k个时域单元的符号发送DMRS，提高第k个时域单元的符号利用率。In the second embodiment shown in FIG. 8 , the cancellation resource indicated by the cancellation instruction overlaps with the resource indicated on the kth time domain unit for transmitting PUSCH, and the terminal equipment does not transmit PUSCH in the kth time domain unit, and in the kth time domain unit The DMRS is sent on the first designated symbol of the kth time domain unit, or the DMRS is sent on the second designated symbol of the kth time domain unit, so that the DMRS can be sent by using the symbol of the kth time domain unit, and the Symbol utilization for k time-domain units.

请参见图10，为本申请实施例三提供的PUSCH传输方法的流程示意图，该流程可以包括但不限于如下步骤。Please refer to FIG. 10 , which is a schematic flowchart of a PUSCH transmission method provided in Embodiment 3 of the present application. The flowchart may include but not limited to the following steps.

步骤601，网络设备向终端设备发送第一指示信息。相应的，终端设备接收来自网络设备的第一指示信息。Step 601: The network device sends first indication information to the terminal device. Correspondingly, the terminal device receives the first indication information from the network device.

其中，第一指示信息指示PUSCH传输的重复类型，即指示重复类型为重复类型A或重复类型B。在图10所示的实施例三中，第一指示信息指示重复类型为重复类型B。可选的，第一指示信息还指示额定重复次数K，额定重复次数指的是网络设备指示的nominal repetition的次数。The first indication information indicates the repetition type of PUSCH transmission, that is, indicates that the repetition type is repetition type A or repetition type B. In the third embodiment shown in FIG. 10 , the first indication information indicates that the repetition type is repetition type B. Optionally, the first indication information further indicates a rated repetition number K, and the rated repetition number refers to the number of nominal repetitions indicated by the network device.

可选的，网络设备还向终端设备发送第二指示信息，指示时域单元偏移。Optionally, the network device further sends second indication information to the terminal device, indicating the time domain unit offset.

可选的，网络设备还向终端设备发送PUSCH的起始符号位置S与连续符号个数L，PUSCH映射类型，以及DMRS高层参数等PUSCH传输参数，这些参数可参见步骤402对其的描述，在此不再赘述。Optionally, the network device also sends the starting symbol position S of the PUSCH and the number of consecutive symbols L, the PUSCH mapping type, and PUSCH transmission parameters such as DMRS high-level parameters to the terminal device. For these parameters, refer to the description of step 402. This will not be repeated here.

步骤602，终端设备根据传输***信息，确定第i次PUSCH传输对应的符号集合I，第i+1次PUSCH传输对应的符号集合J和额定DMRS占用的符号数量，额定DMRS占用的符号数量为第五数量。i为正整数。Step 602, the terminal device determines, according to the transmission splitting information, the symbol set I corresponding to the i-th PUSCH transmission, the symbol set J corresponding to the i+1-th PUSCH transmission and the number of symbols occupied by the rated DMRS, and the number of symbols occupied by the rated DMRS is the number of symbols occupied by the rated DMRS. Five quantity. i is a positive integer.

其中，传输***信息包括时域单元边界信息和/或无效符号配置信息，例如时隙边界信息和/或下行符号配置信息。无效符号可以是下行符号。第i次PUSCH传输和第i+1次PUSCH传输，指的是实际上的PUSCH传输，即受传输***信息影响的PUSCH传输。相应的，符号集合I和符号集合J所包括符号数可能相同，也可能不相同。The transmission splitting information includes time domain unit boundary information and/or invalid symbol configuration information, such as time slot boundary information and/or downlink symbol configuration information. Invalid symbols can be downstream symbols. The i-th PUSCH transmission and the i+1-th PUSCH transmission refer to the actual PUSCH transmission, that is, the PUSCH transmission affected by the transmission split information. Correspondingly, the number of symbols included in the symbol set I and the symbol set J may or may not be the same.

额定DMRS占用的符号数量，指的是在考虑传输***信息的情况下，根据PUSCH映射类型和DMRS高层参数确定的DMRS占用的符号数量。The number of symbols occupied by the rated DMRS refers to the number of symbols occupied by the DMRS determined according to the PUSCH mapping type and the DMRS high-layer parameters in the case of considering the transmission split information.

步骤603，终端设备在符号集合I上进行第i次PUSCH传输，在符号集合J上进行第i+1次PUSCH传输。Step 603, the terminal device performs the i-th PUSCH transmission on the symbol set I, and performs the i+1-th PUSCH transmission on the symbol set J.

步骤604，符号集合I的最后一个DMRS符号与符号集合J的第一个符号之间的符号数小于第二阈值，且第i次PUSCH传输与第i+1次PUSCH传输的相位相同，在符号集合J上进行第i+1次PUSCH传输时，确定不发送DMRS或发送第六数量的DMRS，第六数量小于第五数量。第六数量的DMRS和符号集合I中的DMRS，用于对符号集合I和符号集合J中传输的PUSCH进行联合信道估计。Step 604, the number of symbols between the last DMRS symbol of symbol set I and the first symbol of symbol set J is less than the second threshold, and the phase of the i-th PUSCH transmission and the i+1-th PUSCH transmission is the same, and in the symbol When the i+1th PUSCH transmission is performed on the set J, it is determined not to send DMRS or to send a sixth number of DMRSs, where the sixth number is less than the fifth number. The sixth number of DMRSs and DMRSs in symbol set I are used to perform joint channel estimation on the PUSCH transmitted in symbol set I and symbol set J.

其中，第二阈值可以是L，也可以是L-L’，L’表示第i次PUSCH传输占用的连续符号数。The second threshold may be L or L-L', where L' represents the number of consecutive symbols occupied by the i-th PUSCH transmission.

示例性的，S＝0，L＝7，额定DMRS占用的符号数量为1个，这个DMRS所在符号的位置在pos0，可参见图11所示，第i次PUSCH传输中的最后一个DMRS符号与第i+1次PUSCH传输的第一个符号之间的符号数小于第二阈值。按照协议规定，第i+1次PUSCH传输中DMRS所在符号的位置为pos0；然而采用本申请，在第i+1次PUSCH传输中不发送DMRS。Exemplarily, S=0, L=7, the number of symbols occupied by the rated DMRS is 1, and the position of the symbol where this DMRS is located is pos0, as shown in FIG. 11 , the last DMRS symbol in the i-th PUSCH transmission is the same as The number of symbols between the first symbols of the i+1th PUSCH transmission is less than the second threshold. According to the protocol, the position of the symbol where the DMRS is located in the i+1th PUSCH transmission is pos0; however, with this application, the DMRS is not sent in the i+1th PUSCH transmission.

可选的，终端设备在发送第六数量的DMRS时，符号集合J中第p个DMRS所在符号的位置，与符号集合J中第p+q个额定DMRS所在符号的位置，存在符号偏移；1≤p≤第六数量，0≤q，q为第五数量与所述第六数量之间的差值。实施例三中存在符号偏移的情况，可参见基于实施例一的存在符号偏移的情况。Optionally, when the terminal device sends the sixth number of DMRSs, the position of the symbol where the p-th DMRS in the symbol set J is located, and the position of the symbol where the p+q-th rated DMRS in the symbol set J is located, there is a symbol offset; 1≤p≤sixth number, 0≤q, q is the difference between the fifth number and the sixth number. For the case where there is a symbol offset in Embodiment 3, please refer to the case where there is a symbol offset based on Embodiment 1.

例如，第i次PUSCH传输(即第i次actual repetition)中最后一个DMRS所在符号的位置为D1，第i+1次PUSCH传输(即第i+1次actual repetition)中第一个DMRS所在符号的额定位置为D2，那么在进行第i+1次actual repetition时剩余DMRS所在符号的位置可移动到max(D1+D2-14，S)。For example, the position of the symbol of the last DMRS in the i-th PUSCH transmission (ie the i-th actual repetition) is D1, and the symbol of the first DMRS in the i+1-th PUSCH transmission (ie the i+1-th actual repetition) is located The rated position of is D2, then the position of the symbol where the remaining DMRS is located can be moved to max(D1+D2-14, S) when the i+1th actual repetition is performed.

在图10所示的实施例三中，终端设备进行实际PUSCH传输，在第i次PUSCH传输和第i+1次PUSCH传输满足一定条件的情况下，在进行第i+1次PUSCH传输时，通过不发送DMRS或减少DMRS的发送数量，可以减低第i+1次PUSCH传输中DMRS的开销，从而提升PUSCH传输性能。In the third embodiment shown in FIG. 10 , the terminal device performs actual PUSCH transmission. In the case that the i-th PUSCH transmission and the i+1-th PUSCH transmission satisfy certain conditions, when performing the i+1-th PUSCH transmission, By not sending the DMRS or reducing the number of DMRS sent, the DMRS overhead in the i+1th PUSCH transmission can be reduced, thereby improving the PUSCH transmission performance.

相应于上述方法实施例给出的方法，本申请实施例还提供了相应的装置，包括用于执行上述实施例相应的模块。所述模块可以是软件，也可以是硬件，或者是软件和硬件结合。Corresponding to the methods given in the foregoing method embodiments, the embodiments of the present application further provide corresponding apparatuses, including corresponding modules for executing the foregoing embodiments. The modules may be software, hardware, or a combination of software and hardware.

图12给出了一种通信装置的结构示意图。通信装置800可以是终端设备，也可以是支持终端设备实现上述方法的芯片、芯片***、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。FIG. 12 is a schematic structural diagram of a communication device. The communication apparatus 800 may be a terminal device, or may be a chip, a chip system, or a processor that supports the terminal device to implement the above method. The apparatus can be used to implement the methods described in the foregoing method embodiments, and for details, reference may be made to the descriptions in the foregoing method embodiments.

通信装置800可以包括一个或多个处理器801，处理器801也可以称为处理单元或处理模块等，可以实现一定的控制功能。处理器801可以是通用处理器或者专用处理器等。通用处理器例如可以是中央处理器，专用处理器例如可以是基带处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端、终端芯片，分布式单元(distributed unit，DU)或集中式单元(centralized unit，CU)等)进行控制，执行软件程序，处理软件程序的数据。The communication apparatus 800 may include one or more processors 801, and the processors 801 may also be referred to as processing units or processing modules, etc., and may implement certain control functions. The processor 801 may be a general-purpose processor or a special-purpose processor, or the like. The general-purpose processor may be, for example, a central processing unit, and the special-purpose processor may be, for example, a baseband processor. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to process communication devices (eg, base stations, baseband chips, terminals, terminal chips, distributed units (DUs) or centralized units (centralized unit, CU), etc.) to control, execute software programs, and process data of software programs.

在一种可选的设计中，处理器801也可以存有指令803，所述指令803可以被处理器801运行，使得通信装置800执行上述方法实施例中描述的方法。In an optional design, the processor 801 may also store instructions 803, and the instructions 803 may be executed by the processor 801, so that the communication apparatus 800 executes the methods described in the foregoing method embodiments.

在另一种可选的设计中，处理器801中可以包括用于实现接收和发送功能的收发单元。例如该收发单元可以是收发电路，或者是接口。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路或接口可以用于指令的读写，或者，上述收发电路或接口可以用于信号的传输。In another optional design, the processor 801 may include a transceiver unit for implementing receiving and transmitting functions. For example, the transceiver unit may be a transceiver circuit, or an interface. Transceiver circuits, interfaces or interface circuits used to implement receiving and transmitting functions may be separate or integrated. The above-mentioned transceiver circuit or interface can be used for reading and writing instructions, or the above-mentioned transceiver circuit or interface can be used for signal transmission.

可选的，通信装置800中可以包括一个或多个存储器802，其上可以存有指令804，指令804可在处理器801上被运行，使得通信装置800执行上述方法实施例中描述的方法。可选的，存储器802中还可以存储有数据。可选的，处理器801中也可以存储指令和/或数据。处理器801和存储器802可以单独设置，也可以集成在一起。例如，上述方法实施例中所描述的对应关系可以存储在存储器802中，或者存储在处理器801中。Optionally, the communication apparatus 800 may include one or more memories 802 on which instructions 804 may be stored, and the instructions 804 may be executed on the processor 801, so that the communication apparatus 800 executes the methods described in the above method embodiments. Optionally, data may also be stored in the memory 802 . Optionally, instructions and/or data may also be stored in the processor 801 . The processor 801 and the memory 802 can be provided separately or integrated together. For example, the corresponding relationship described in the above method embodiments may be stored in the memory 802 or in the processor 801 .

可选的，通信装置800还可以包括收发器805和/或天线806。收发器805可以称为收发单元、收发机、收发电路、收发装置或收发模块等，用于实现收发功能。Optionally, the communication apparatus 800 may further include a transceiver 805 and/or an antenna 806 . The transceiver 805 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, a transceiver device, or a transceiver module, etc., and is used to implement a transceiver function.

可选的，本申请实施例中，通信装置800为终端设备时，可以包含各种功能模块，用于执行图4中的步骤401至步骤404；或图8中的步骤501至步骤504，步骤505a或步骤505b；或图10中的步骤601至步骤604。Optionally, in this embodiment of the present application, when the communication apparatus 800 is a terminal device, it may include various functional modules for performing steps 401 to 404 in FIG. 4 ; or steps 501 to 504 in FIG. 8 , the steps 505a or step 505b; or steps 601 to 604 in FIG. 10 .

图13提供了一种终端设备的结构示意图。为了便于说明，图13仅示出了终端设备的主要部件。如图13所示，终端设备900包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端进行控制，执行软件程序，处理软件程序的数据。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。FIG. 13 provides a schematic structural diagram of a terminal device. For convenience of explanation, FIG. 13 only shows the main components of the terminal device. As shown in FIG. 13 , the terminal device 900 includes a processor, a memory, a control circuit, an antenna, and an input and output device. The processor is mainly used to process communication protocols and communication data, control the entire terminal, execute software programs, and process data of the software programs. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.

当终端设备开机后，处理器可以读取存储单元中的软件程序，解析并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行处理后得到射频信号并将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，该射频信号被进一步转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。When the terminal device is powered on, the processor can read the software program in the storage unit, parse and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit processes the baseband signal to obtain a radio frequency signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. . When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, the radio frequency signal is further converted into a baseband signal, and the baseband signal is output to the processor, and the processor converts the baseband signal into data and processes the data. deal with.

为了便于说明，图13仅示出了一个存储器和处理器。在实际的终端设备中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本申请实施例对此不做限制。For ease of illustration, Figure 13 shows only one memory and processor. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present application.

如图14所示，本申请又一实施例提供了一种通信装置1000。该装置可以是终端设备，也可以是终端设备的部件(例如，集成电路，芯片等等)。该装置也可以是其他通信模块，用于实现本申请方法实施例中的方法。该通信装置1000可以包括：处理模块1002(或称为处理单元)。可选的，还可以包括收发模块1001(或称为收发单元)，收发模块1001可以包括接收模块(或称接收单元)和/或发送模块(或称发送单元)。可选的，还可以包括存储模块(或称为存储单元)。As shown in FIG. 14 , another embodiment of the present application provides a communication apparatus 1000 . The apparatus may be a terminal device, or may be a component of a terminal device (eg, an integrated circuit, a chip, etc.). The apparatus may also be other communication modules, which are used to implement the methods in the method embodiments of the present application. The communication apparatus 1000 may include: a processing module 1002 (or referred to as a processing unit). Optionally, a transceiver module 1001 (or called a transceiver unit) may also be included, and the transceiver module 1001 may include a receiving module (or called a receiving unit) and/or a sending module (or called a sending unit). Optionally, a storage module (or referred to as a storage unit) may also be included.

在一种可能的设计中，如图14中的一个或者多个模块可能由一个或者多个处理器来实现，或者由一个或者多个处理器和存储器来实现；或者由一个或多个处理器和收发器实现；或者由一个或者多个处理器、存储器和收发器实现，本申请实施例对此不作限定。所述处理器、存储器、收发器可以单独设置，也可以集成。In a possible design, one or more modules as shown in FIG. 14 may be implemented by one or more processors, or by one or more processors and memory; or by one or more processors and a transceiver; or implemented by one or more processors, a memory, and a transceiver, which is not limited in this embodiment of the present application. The processor, memory, and transceiver can be set independently or integrated.

可选的，本申请实施例中的通信装置1000中各个模块可以用于执行本申请实施例中图4、图8或图10描述的方法，也可以用于执行上述两个图或更多个图中描述的方法相互结合的方法。Optionally, each module in the communication apparatus 1000 in the embodiment of the present application may be used to execute the method described in FIG. 4 , FIG. 8 , or FIG. 10 in the embodiment of the present application, or may be used to execute the above two or more The methods described in the figure are combined with each other.

可以理解，本申请实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。It can be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable circuits. Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.

以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application.

Claims

一种PUSCH传输方法，其特征在于，包括：A PUSCH transmission method, comprising:

接收来自网络设备的第一指示信息和第二指示信息，所述第一指示信息指示PUSCH传输的重复类型和额定重复次数，所述第二指示信息指示时域单元偏移；receiving first indication information and second indication information from the network device, where the first indication information indicates a repetition type and a rated number of repetitions of PUSCH transmission, and the second indication information indicates a time domain unit offset;

所述重复类型为重复类型A；The repetition type is repetition type A;

根据所述时域单元偏移确定额定发送PUSCH的起始时域单元；Determine the starting time domain unit for sending the PUSCH nominally according to the time domain unit offset;

所述起始时域单元的上一个时域单元为第一时域单元；或，The last time domain unit of the initial time domain unit is the first time domain unit; or,

额定发送PUSCH的K个时域单元包括第一时域单元，且所述第一时域单元不满足配置的长度和起始位置，K为所述额定重复次数；其中，所述第一时域单元包括下行符号与非下行符号；The K time-domain units that are rated to transmit PUSCH include a first time-domain unit, and the first time-domain unit does not meet the configured length and starting position, and K is the rated number of repetitions; wherein, the first time-domain unit The unit includes downlink symbols and non-downlink symbols;

在所述第一时域单元中，确定PUSCH传输符号；in the first time domain unit, determining a PUSCH transmission symbol;

在所述PUSCH传输符号上，进行PUSCH传输。On the PUSCH transmission symbols, PUSCH transmission is performed.
根据权利要求1所述的方法，其特征在于，所述PUSCH传输符号为所述第一时域单元中的上行符号；或，The method according to claim 1, wherein the PUSCH transmission symbol is an uplink symbol in the first time domain unit; or,

所述PUSCH传输符号为所述第一时域单元中的非下行符号；或，The PUSCH transmission symbol is a non-downlink symbol in the first time domain unit; or,

所述PUSCH传输符号为所述第一时域单元中从第n个灵活符号开始的非下行符号，1≤n≤N，N为所述第一时域单元中灵活符号的个数。The PUSCH transmission symbols are non-downlink symbols starting from the nth flexible symbol in the first time domain unit, 1≤n≤N, and N is the number of flexible symbols in the first time domain unit.
根据权利要求1所述的方法，其特征在于，所述PUSCH传输符号为所述第一时域单元中的上行符号与下行控制信息指示的上行符号之间的交集；或，The method according to claim 1, wherein the PUSCH transmission symbol is an intersection between an uplink symbol in the first time domain unit and an uplink symbol indicated by downlink control information; or,

所述PUSCH传输符号为所述第一时域单元中的非下行符号与下行控制信息指示的上行符号之间的交集；或，The PUSCH transmission symbol is the intersection between the non-downlink symbol in the first time domain unit and the uplink symbol indicated by the downlink control information; or,

所述PUSCH传输符号为所述第一时域单元中从第n个灵活符号开始的非下行符号与下行控制信息指示的上行符号之间的交集，1≤n≤N，N为所述第一时域单元中灵活符号的个数。The PUSCH transmission symbol is the intersection between the non-downlink symbol starting from the n-th flexible symbol and the uplink symbol indicated by the downlink control information in the first time domain unit, 1≤n≤N, where N is the first The number of flexible symbols in the time domain unit.
根据权利要求1至3任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1 to 3, wherein the method further comprises:

根据PUSCH映射类型和DMRS高层参数，确定第二时域单元中DMRS占用的额定符号数量为第一数量；According to the PUSCH mapping type and the DMRS high-level parameter, it is determined that the number of rated symbols occupied by the DMRS in the second time domain unit is the first number;

在所述第二时域单元进行PUSCH传输时，确定不发送DMRS或发送第二数量的DMRS，所述第二数量小于所述第一数量，所述第二时域单元为所述第一时域单元的下一个时域单元，满足配置的长度和起始位置，且属于所述K个时域单元；所述第二数量的DMRS和所述第一时域单元中的DMRS用于对所述第一时域单元和所述第二时域单元中传输的PUSCH进行联合信道估计。When the second time domain unit performs PUSCH transmission, it is determined not to send DMRS or to send a second number of DMRSs, the second number is smaller than the first number, and the second time domain unit is the first time The next time domain unit of the domain unit meets the configured length and starting position, and belongs to the K time domain units; the second number of DMRSs and the DMRS in the first time domain unit are used for all Joint channel estimation is performed on the PUSCH transmitted in the first time domain unit and the second time domain unit.
根据权利要求1至3任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1 to 3, wherein the method further comprises:

根据PUSCH映射类型和DMRS高层参数，确定第二时域单元中DMRS占用的额定符号数量为第一数量；According to the PUSCH mapping type and the DMRS high-level parameter, it is determined that the number of rated symbols occupied by the DMRS in the second time domain unit is the first number;

确定在所述第一时域单元中的PUSCH传输中最后一个DMRS所在符号的位置；determining the position of the symbol where the last DMRS is located in the PUSCH transmission in the first time domain unit;

所述最后一个DMRS所在符号的位置与所述第二时域单元的起始符号的位置之间的符号数小于第一阈值，在所述第二时域单元进行PUSCH传输时，确定不发送DMRS或发送第二数量的DMRS，所述第二数量小于所述第一数量，所述第二时域单元为所述第一时域单元的下一个时域单元，满足配置的长度和起始位置，且属于所述K个时域单元；所述第二数量的DMRS和所述第一时域单元中的DMRS用于对所述第一时域单元和所述第二时域单元中传输的PUSCH进行联合信道估计。The number of symbols between the position of the symbol where the last DMRS is located and the position of the starting symbol of the second time domain unit is less than the first threshold, and when the second time domain unit performs PUSCH transmission, it is determined not to send the DMRS Or send a second number of DMRSs, where the second number is smaller than the first number, and the second time domain unit is the next time domain unit of the first time domain unit, satisfying the configured length and starting position , and belong to the K time domain units; the second number of DMRSs and the DMRSs in the first time domain unit are used for PUSCH performs joint channel estimation.
根据权利要求4或5所述的方法，其特征在于，在发送所述第二数量的DMRS时，所述第二时域单元中第i个DMRS所在符号的位置，与额定的所述第二时域单元中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤所述第二数量，0≤j，j为所述第一数量与所述第二数量之间的差值。The method according to claim 4 or 5, wherein when the second number of DMRSs is sent, the position of the symbol where the i-th DMRS in the second time domain unit is located is different from the rated second number of DMRSs. The position of the symbol where the i+jth DMRS in the time domain unit is located has a symbol offset; 1≤i≤the second quantity, 0≤j, j is the difference between the first quantity and the second quantity. difference.
一种PUSCH传输方法，其特征在于，包括：A PUSCH transmission method, comprising:

接收来自网络设备的第一指示信息和第二指示信息，所述第一指示信息指示PUSCH传输的重复类型和额定重复次数，所述第二指示信息指示时域单元偏移；receiving first indication information and second indication information from the network device, where the first indication information indicates a repetition type and a rated number of repetitions of PUSCH transmission, and the second indication information indicates a time domain unit offset;

根据所述时域单元偏移确定额定发送PUSCH的起始时域单元；Determine the starting time domain unit for sending the PUSCH nominally according to the time domain unit offset;

在K个时域单元上传输PUSCH，所述K个时域单元的起始时域单元为所述额定发送PUSCH的起始时域单元；在所述重复类型为重复类型A的情况下，所述K个时域单元中每个时域单元的符号数量为预设数量；在所述重复类型为重复类型B的情况下，所述K个时域单元中每个时域单元的符号数量小于或等于预设数量；所述预设数量为12个或14个符号；PUSCH is transmitted on K time-domain units, and the starting time-domain unit of the K time-domain units is the starting time-domain unit for the rated transmission of PUSCH; in the case that the repetition type is repetition type A, the The number of symbols of each time-domain unit in the K time-domain units is a preset number; when the repetition type is repetition type B, the number of symbols of each time-domain unit in the K time-domain units is less than or equal to a preset number; the preset number is 12 or 14 symbols;

接收取消指示，所述取消指示指示的取消资源和第k个时域单元上的指示用于传输PUSCH的资源有重叠；receiving a cancellation instruction, where the cancellation resource indicated by the cancellation instruction overlaps with the resource indicated on the kth time domain unit for transmitting PUSCH;

所述第k个时域单元不用于传输PUSCH；1≤k≤K；The kth time domain unit is not used for transmitting PUSCH; 1≤k≤K;

在所述第k个时域单元的第一指定符号上，发送DMRS，所述第一指定符号为所述第k个时域单元中的后M1个符号，且不为所述取消指示指示的取消资源，M1为正整数；或，On the first designated symbol of the kth time domain unit, the DMRS is sent, and the first designated symbol is the last M1 symbols in the kth time domain unit, and is not indicated by the cancellation indication cancel resource, M1 is a positive integer; or,

在所述第k个时域单元的第二指定符号上，发送DMRS，所述第二指定符号为所述第k个时域单元中的前M2个符号，且不为所述取消指示指示的取消资源，M2为正整数。Send DMRS on the second designated symbol of the kth time domain unit, the second designated symbol is the first M2 symbols in the kth time domain unit, and is not indicated by the cancellation indication Cancel resources, M2 is a positive integer.
根据权利要求7所述的方法，其特征在于，所述方法还包括：The method according to claim 7, wherein the method further comprises:

在第k+1个时域单元上，确定不发送DMRS或发送第三数量的DMRS，所述第三数量小于额定第k+1个时域单元上发送的DMRS数量，且所述第k+1个时域单元属于所述K个时域单元；所述第三数量的DMRS和所述第k个时域单元中的DMRS用于对所述第k个时域单元和所述第k+1个时域单元中传输的PUSCH进行联合信道估计。On the k+1 th time domain unit, it is determined not to send DMRS or to send a third number of DMRSs, where the third number is less than the number of DMRS sent on the rated k+1 th time domain unit, and the k+ 1 time domain unit belongs to the K time domain units; the third number of DMRSs and the DMRSs in the kth time domain unit are used for comparing the kth time domain unit and the kth time domain unit Joint channel estimation is performed on the PUSCH transmitted in one time domain unit.
根据权利要求8所述的方法，其特征在于，在发送所述第三数量的DMRS时，所述第k+1个时域单元中第i个DMRS所在符号的位置，与所述额定第k+1个时域单元中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤所述第三数量，0≤j，j为所述额定第k+1个时域单元上发送的DMRS数量与所述第三数量之间的差值。The method according to claim 8, wherein when the third number of DMRSs is sent, the position of the symbol where the i-th DMRS in the k+1-th time domain unit is located is different from the rated k-th DMRS. The position of the symbol of the i+jth DMRS in the +1 time domain unit has a symbol offset; 1≤i≤the third number, 0≤j, j is the rated k+1th time domain unit difference between the number of DMRSs sent on the third number and the third number.
根据权利要求7所述的方法，其特征在于，所述方法还包括：The method according to claim 7, wherein the method further comprises:

在第k-1个时域单元上，确定不发送DMRS或发送第四数量的DMRS，所述第四数量小于额定第k-1个时域单元上发送的DMRS数量，且所述第k-1个时域单元属于所述K个时域单元；所述第四数量的DMRS和所述第k个时域单元中的DMRS用于对所述第k个时域单元和所述第k-1个时域单元中传输的PUSCH进行联合信道估计。On the k-1 th time domain unit, it is determined not to send DMRS or to send a fourth number of DMRSs, the fourth number is less than the nominal number of DMRS sent on the k-1 th time domain unit, and the k-th DMRS is sent 1 time domain unit belongs to the K time domain units; the fourth number of DMRSs and the DMRS in the kth time domain unit are used for Joint channel estimation is performed on the PUSCH transmitted in one time domain unit.
根据权利要求10所述的方法，其特征在于，在发送所述第四数量的DMRS时，所述第k-1个时域单元中第i个DMRS所在符号的位置，与所述额定第k-1个时域单元中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤所述第四数量，0≤j，j为所述额定第k-1个时域单元上发送的DMRS数量与所述第四数量之间的差值。The method according to claim 10, wherein when the fourth number of DMRSs is sent, the position of the symbol where the i-th DMRS in the k-1 th time domain unit is located is different from the nominal k-th DMRS. The position of the symbol of the i+jth DMRS in -1 time domain unit, there is a symbol offset; 1≤i≤the fourth number, 0≤j, j is the rated k-1th time domain unit The difference between the number of DMRSs sent on and the fourth number.
一种PUSCH传输方法，其特征在于，包括：A PUSCH transmission method, comprising:

接收来自网络设备的第一指示信息，所述第一指示信息指示PUSCH传输的重复类型，所述重复类型为重复类型B；receiving first indication information from a network device, where the first indication information indicates a repetition type of PUSCH transmission, and the repetition type is repetition type B;

根据传输***信息，确定第i次PUSCH传输对应的符号集合I，第i+1次PUSCH传输对应的符号集合J和额定DMRS占用的符号数量，所述额定DMRS占用的符号数量为第五数量；所述传输***信息包括时域单元边界信息和/或无效符号配置信息；其中，i为正整数；According to the transmission split information, determine the symbol set I corresponding to the i-th PUSCH transmission, the symbol set J corresponding to the i+1-th PUSCH transmission and the number of symbols occupied by the rated DMRS, and the number of symbols occupied by the rated DMRS is the fifth number; The transmission splitting information includes time domain unit boundary information and/or invalid symbol configuration information; wherein, i is a positive integer;

在所述符号集合I上进行第i次PUSCH传输，在所述符号集合J上进行第i+1次PUSCH传输；perform the i-th PUSCH transmission on the symbol set I, and perform the i+1-th PUSCH transmission on the symbol set J;

所述符号集合I的最后一个DMRS符号与所述符号集合J的第一个符号之间的符号数小于第二阈值，且所述第i次PUSCH传输与所述第i+1次PUSCH传输的相位相同，在所述符号集合J上进行第i+1次PUSCH传输时，确定不发送DMRS或发送第六数量的DMRS，所述第六数量小于所述第五数量；所述第六数量的DMRS和所述符号集合I中的DMRS用于对所述符号集合I和所述符号集合J中传输的PUSCH进行联合信道估计。The number of symbols between the last DMRS symbol of the symbol set I and the first symbol of the symbol set J is less than the second threshold, and the difference between the i-th PUSCH transmission and the i+1-th PUSCH transmission is The phases are the same, and when the i+1th PUSCH transmission is performed on the symbol set J, it is determined not to send DMRS or to send a sixth number of DMRSs, where the sixth number is less than the fifth number; The DMRS and the DMRS in the symbol set I are used to perform joint channel estimation on the PUSCH transmitted in the symbol set I and the symbol set J.
根据权利要求12所述的方法，其特征在于，在发送所述第六数量的DMRS时，所述符号集合J中第p个DMRS所在符号的位置，与所述符号集合J中第p+q个额定DMRS所在符号的位置，存在符号偏移；1≤p≤所述第六数量，0≤q，q为所述第五数量与所述第六数量之间的差值。The method according to claim 12, wherein when the sixth number of DMRSs is sent, the position of the symbol where the p-th DMRS in the symbol set J is located is the same as the p+q-th symbol in the symbol set J. There is a symbol offset at the positions of the symbols where the number of rated DMRSs are located; 1≤p≤the sixth quantity, 0≤q, and q is the difference between the fifth quantity and the sixth quantity.
一种通信装置，用于实现PUSCH传输方法，其特征在于，包括收发模块和处理模块；A communication device for implementing a PUSCH transmission method, characterized in that it includes a transceiver module and a processing module;

所述收发模块，用于接收来自网络设备的第一指示信息和第二指示信息，所述第一指示信息指示PUSCH传输的重复类型和额定重复次数，所述重复类型为重复类型A；所述第二指示信息指示时域单元偏移；The transceiver module is configured to receive first indication information and second indication information from a network device, where the first indication information indicates a repetition type and a rated repetition number of PUSCH transmission, and the repetition type is repetition type A; the The second indication information indicates the time domain unit offset;

所述处理模块，用于根据所述时域单元偏移确定额定发送PUSCH的起始时域单元；所述起始时域单元的上一个时域单元为第一时域单元；或，额定发送PUSCH的K个时域单元包括第一时域单元，且所述第一时域单元不满足配置的长度和起始位置，K为所述额定重复次数；其中，所述第一时域单元包括下行符号与非下行符号；在所述第一时域单元中，确定PUSCH传输符号；The processing module is configured to determine, according to the time-domain unit offset, a starting time-domain unit for the rated transmission of the PUSCH; the previous time-domain unit of the starting time-domain unit is the first time domain unit; or, the rated transmission The K time-domain units of the PUSCH include a first time-domain unit, and the first time-domain unit does not meet the configured length and starting position, and K is the rated number of repetitions; wherein, the first time-domain unit includes Downlink symbols and non-downlink symbols; in the first time domain unit, determine the PUSCH transmission symbols;

所述收发模块，还用于在所述PUSCH传输符号上，进行PUSCH传输。The transceiver module is further configured to perform PUSCH transmission on the PUSCH transmission symbols.
根据权利要求14所述的装置，其特征在于，所述PUSCH传输符号为所述第一时域单元中的上行符号；或，The apparatus according to claim 14, wherein the PUSCH transmission symbol is an uplink symbol in the first time domain unit; or,

所述PUSCH传输符号为所述第一时域单元中的非下行符号；或，The PUSCH transmission symbol is a non-downlink symbol in the first time domain unit; or,

所述PUSCH传输符号为所述第一时域单元中从第n个灵活符号开始的非下行符号，1≤ n≤N，N为所述第一时域单元中灵活符号的个数。The PUSCH transmission symbol is a non-downlink symbol starting from the nth flexible symbol in the first time domain unit, 1≤n≤N, and N is the number of flexible symbols in the first time domain unit.
根据权利要求14所述的装置，其特征在于，所述PUSCH传输符号为所述第一时域单元中的上行符号与下行控制信息指示的上行符号之间的交集；或，The apparatus according to claim 14, wherein the PUSCH transmission symbol is an intersection between an uplink symbol in the first time domain unit and an uplink symbol indicated by downlink control information; or,

所述PUSCH传输符号为所述第一时域单元中的非下行符号与下行控制信息指示的上行符号之间的交集；或，The PUSCH transmission symbol is the intersection between the non-downlink symbol in the first time domain unit and the uplink symbol indicated by the downlink control information; or,

所述PUSCH传输符号为所述第一时域单元中从第n个灵活符号开始的非下行符号与下行控制信息指示的上行符号之间的交集，1≤n≤N，N为所述第一时域单元中灵活符号的个数。The PUSCH transmission symbol is the intersection between the non-downlink symbol starting from the n-th flexible symbol and the uplink symbol indicated by the downlink control information in the first time domain unit, 1≤n≤N, where N is the first The number of flexible symbols in the time domain unit.
根据权利要求14至16任一项所述的装置，其特征在于，The device according to any one of claims 14 to 16, characterized in that:

所述处理模块，还用于根据PUSCH映射类型和DMRS高层参数，确定第二时域单元中DMRS占用的额定符号数量为第一数量；The processing module is further configured to determine, according to the PUSCH mapping type and the DMRS high-level parameter, that the number of rated symbols occupied by the DMRS in the second time domain unit is the first number;

所述收发模块，还用于在所述第二时域单元进行PUSCH传输时，确定不发送DMRS或发送第二数量的DMRS，所述第二数量小于所述第一数量，所述第二时域单元为所述第一时域单元的下一个时域单元，满足配置的长度和起始位置，且属于所述K个时域单元；所述第二数量的DMRS和所述第一时域单元中的DMRS用于对所述第一时域单元和所述第二时域单元中传输的PUSCH进行联合信道估计。The transceiver module is further configured to determine not to send DMRS or to send a second number of DMRS when the second time domain unit performs PUSCH transmission, where the second number is less than the first number, and the second time The domain unit is the next time domain unit of the first time domain unit, meets the configured length and starting position, and belongs to the K time domain units; the second number of DMRS and the first time domain unit The DMRS in the unit is used to perform joint channel estimation on the PUSCH transmitted in the first time domain unit and the second time domain unit.
根据权利要求14至16任一项所述的装置，其特征在于，The device according to any one of claims 14 to 16, characterized in that:

所述处理模块，还用于根据PUSCH映射类型和DMRS高层参数，确定第二时域单元中DMRS占用的额定符号数量为第一数量；确定在所述第一时域单元中的PUSCH传输中最后一个DMRS所在符号的位置；The processing module is further configured to determine, according to the PUSCH mapping type and the DMRS high-level parameters, that the number of rated symbols occupied by the DMRS in the second time domain unit is the first number; The position of the symbol where a DMRS is located;

所述收发模块，还用于所述最后一个DMRS所在符号的位置与所述第二时域单元的起始符号的位置之间的符号数小于第一阈值，在所述第二时域单元进行PUSCH传输时，确定不发送DMRS或发送第二数量的DMRS，所述第二数量小于所述第一数量，所述第二时域单元为所述第一时域单元的下一个时域单元，满足配置的长度和起始位置，且属于所述K个时域单元；所述第二数量的DMRS和所述第一时域单元中的DMRS用于对所述第一时域单元和所述第二时域单元中传输的PUSCH进行联合信道估计。The transceiver module is also used for the number of symbols between the position of the symbol where the last DMRS is located and the position of the start symbol of the second time domain unit is less than the first threshold, and the second time domain unit performs During PUSCH transmission, it is determined not to send DMRS or to send a second number of DMRSs, where the second number is less than the first number, and the second time domain unit is the next time domain unit of the first time domain unit, satisfy the configured length and starting position, and belong to the K time domain units; the second number of DMRSs and the DMRS in the first time domain unit are used to compare the first time domain unit and the Joint channel estimation is performed on the PUSCH transmitted in the second time domain unit.
根据权利要求17或18所述的装置，其特征在于，在发送所述第二数量的DMRS时，所述第二时域单元中第i个DMRS所在符号的位置，与额定的所述第二时域单元中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤所述第二数量，0≤j，j为所述第一数量与所述第二数量之间的差值。The apparatus according to claim 17 or 18, wherein when the second number of DMRSs is sent, the position of the symbol where the i-th DMRS in the second time domain unit is located is different from the rated second number of DMRSs. The position of the symbol where the i+jth DMRS in the time domain unit is located has a symbol offset; 1≤i≤the second quantity, 0≤j, j is the difference between the first quantity and the second quantity. difference.
一种通信装置，用于实现PUSCH传输方法，其特征在于，包括收发模块和处理模块；A communication device for implementing a PUSCH transmission method, characterized in that it includes a transceiver module and a processing module;

所述收发模块，用于接收来自网络设备的第一指示信息和第二指示信息，所述第一指示信息指示PUSCH传输的重复类型和额定重复次数，所述第二指示信息指示时域单元偏移；The transceiver module is configured to receive first indication information and second indication information from the network device, the first indication information indicates the repetition type and rated repetition times of PUSCH transmission, and the second indication information indicates the time domain unit offset. shift;

所述处理模块，用于根据所述时域单元偏移确定额定发送PUSCH的起始时域单元；The processing module is configured to determine, according to the time-domain unit offset, a starting time-domain unit for sending the PUSCH at a rated rate;

所述收发模块，还用于在K个时域单元上传输PUSCH，所述K个时域单元的起始时域单元为所述额定发送PUSCH的起始时域单元；在所述重复类型为重复类型A的情况下，所述K个时域单元中每个时域单元的符号数量为预设数量；在所述重复类型为重复类型B的情况下，所述K个时域单元中每个时域单元的符号数量小于或等于预设数量；所述预设数量为12个或14个符号；接收取消指示，所述取消指示指示的取消资源和第k个时域单元上的指示用于传输PUSCH的资源有重叠；所述第k个时域单元不用于传输PUSCH；1≤k≤K；The transceiver module is further configured to transmit PUSCH on K time domain units, and the starting time domain unit of the K time domain units is the starting time domain unit of the rated transmission PUSCH; when the repetition type is In the case of repetition type A, the number of symbols in each time domain unit in the K time domain units is a preset number; in the case where the repetition type is repetition type B, each time domain unit in the K time domain units is a preset number. The number of symbols of each time-domain unit is less than or equal to a preset number; the preset number is 12 or 14 symbols; when a cancellation instruction is received, the cancellation resource indicated by the cancellation instruction and the indication on the kth time-domain unit are used for The resources for transmitting PUSCH overlap; the kth time domain unit is not used for transmitting PUSCH; 1≤k≤K;

所述收发模块，还用于在所述第k个时域单元的第一指定符号上，发送DMRS，所述第一指定符号为所述第k个时域单元中的后M1个符号，且不为所述取消指示指示的取消资源，M1为正整数；或，在所述第k个时域单元的第二指定符号上，发送DMRS，所述第二指定符号为所述第k个时域单元中的前M2个符号，且不为所述取消指示指示的取消资源，M2为正整数。The transceiver module is further configured to send the DMRS on the first designated symbol of the kth time domain unit, where the first designated symbol is the last M1 symbols in the kth time domain unit, and is not the cancellation resource indicated by the cancellation instruction, and M1 is a positive integer; or, on the second designated symbol of the kth time domain unit, a DMRS is sent, and the second designated symbol is the kth time domain unit The first M2 symbols in the domain unit are not the cancellation resources indicated by the cancellation indication, and M2 is a positive integer.
根据权利要求20所述的装置，其特征在于，The apparatus of claim 20, wherein:

所述收发模块，还用于在第k+1个时域单元上，确定不发送DMRS或发送第三数量的DMRS，所述第三数量小于额定第k+1个时域单元上发送的DMRS数量，且所述第k+1个时域单元属于所述K个时域单元；所述第三数量的DMRS和所述第k个时域单元中的DMRS用于对所述第k个时域单元和所述第k+1个时域单元中传输的PUSCH进行联合信道估计。The transceiver module is further configured to, on the k+1 th time domain unit, determine not to send the DMRS or to send a third quantity of DMRSs, where the third quantity is less than the DMRS sent on the rated k+1 th time domain unit number, and the k+1 th time-domain unit belongs to the K-th time-domain unit; the third number of DMRS and the DMRS in the k-th time-domain unit are used for the k-th time-domain unit The domain unit and the PUSCH transmitted in the k+1 th time domain unit perform joint channel estimation.
根据权利要求21所述的装置，其特征在于，在发送所述第三数量的DMRS时，所述第k+1个时域单元中第i个DMRS所在符号的位置，与所述额定第k+1个时域单元中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤所述第三数量，0≤j，j为所述额定第k+1个时域单元上发送的DMRS数量与所述第三数量之间的差值。The apparatus according to claim 21, wherein when the third number of DMRSs is sent, the position of the symbol where the i-th DMRS in the k+1-th time domain unit is located is different from the nominal k-th DMRS. The position of the symbol of the i+jth DMRS in the +1 time domain unit has a symbol offset; 1≤i≤the third number, 0≤j, j is the rated k+1th time domain unit difference between the number of DMRSs sent on the third number and the third number.
根据权利要求20所述的装置，其特征在于，The apparatus of claim 20, wherein:

所述收发模块，还用于在第k-1个时域单元上，确定不发送DMRS或发送第四数量的DMRS，所述第四数量小于额定第k-1个时域单元上发送的DMRS数量，且所述第k-1个时域单元属于所述K个时域单元；所述第四数量的DMRS和所述第k个时域单元中的DMRS用于对所述第k个时域单元和所述第k-1个时域单元中传输的PUSCH进行联合信道估计。The transceiver module is further configured to, on the k-1 th time domain unit, determine not to send DMRS or to send a fourth quantity of DMRSs, where the fourth quantity is less than the DMRS sent on the rated k-1 th time domain unit number, and the k-1th time domain unit belongs to the K time domain units; the fourth number of DMRSs and the DMRS in the kth time domain unit are used for The domain unit and the PUSCH transmitted in the k-1 th time domain unit perform joint channel estimation.
根据权利要求23所述的装置，其特征在于，在发送所述第四数量的DMRS时，所述第k-1个时域单元中第i个DMRS所在符号的位置，与所述额定第k-1个时域单元中第i+j个DMRS所在符号的位置，存在符号偏移；1≤i≤所述第四数量，0≤j，j为所述额定第k-1个时域单元上发送的DMRS数量与所述第四数量之间的差值。The apparatus according to claim 23, wherein when the fourth number of DMRSs is sent, the position of the symbol where the i-th DMRS in the k-1 th time domain unit is located is different from the nominal k-th DMRS. The position of the symbol of the i+jth DMRS in -1 time domain unit, there is a symbol offset; 1≤i≤the fourth number, 0≤j, j is the rated k-1th time domain unit The difference between the number of DMRSs sent on and the fourth number.
一种通信装置，用于实现PUSCH传输方法，其特征在于，包括收发模块和处理模块；A communication device for implementing a PUSCH transmission method, characterized in that it includes a transceiver module and a processing module;

所述收发模块，用于接收来自网络设备的第一指示信息，所述第一指示信息指示PUSCH传输的重复类型，所述重复类型为重复类型B；The transceiver module is configured to receive first indication information from a network device, where the first indication information indicates a repetition type of PUSCH transmission, and the repetition type is repetition type B;

所述处理模块，用于根据传输***信息，确定第i次PUSCH传输对应的符号集合I，第i+1次PUSCH传输对应的符号集合J和额定DMRS占用的符号数量，所述额定DMRS占用的符号数量为第五数量；所述传输***信息包括时域单元边界信息和/或无效符号配置信息；其中，i为正整数；The processing module is configured to determine, according to the transmission splitting information, the symbol set I corresponding to the i-th PUSCH transmission, the symbol set J corresponding to the i+1-th PUSCH transmission and the number of symbols occupied by the rated DMRS, and the number of symbols occupied by the rated DMRS. The number of symbols is a fifth number; the transmission splitting information includes time domain unit boundary information and/or invalid symbol configuration information; wherein, i is a positive integer;

所述收发模块，用于在所述符号集合I上进行第i次PUSCH传输，在所述符号集合J上进行第i+1次PUSCH传输；所述符号集合I的最后一个DMRS符号与所述符号集合J 的第一个符号之间的符号数小于第二阈值，且所述第i次PUSCH传输与所述第i+1次PUSCH传输的相位相同，在所述符号集合J上进行第i+1次PUSCH传输时，确定不发送DMRS或发送第六数量的DMRS，所述第六数量小于所述第五数量；所述第六数量的DMRS和所述符号集合I中的DMRS用于对所述符号集合I和所述符号集合J中传输的PUSCH进行联合信道估计。The transceiver module is configured to perform the i-th PUSCH transmission on the symbol set 1, and perform the i+1-th PUSCH transmission on the symbol set J; the last DMRS symbol of the symbol set 1 is the same as the The number of symbols between the first symbols of the symbol set J is less than the second threshold, and the i-th PUSCH transmission and the i+1-th PUSCH transmission have the same phase, and the i-th PUSCH transmission is performed on the symbol set J. When +1 PUSCH transmission, it is determined not to send DMRS or to send a sixth number of DMRSs, where the sixth number is less than the fifth number; the sixth number of DMRSs and the DMRSs in the symbol set I are used for Joint channel estimation is performed on the PUSCH transmitted in the symbol set I and the symbol set J.
根据权利要求25所述的装置，其特征在于，在发送所述第六数量的DMRS时，所述符号集合J中第p个DMRS所在符号的位置，与所述符号集合J中第p+q个额定DMRS所在符号的位置，存在符号偏移；1≤p≤所述第六数量，0≤q，q为所述第五数量与所述第六数量之间的差值。The apparatus according to claim 25, wherein when the sixth number of DMRSs is sent, the position of the symbol where the p-th DMRS in the symbol set J is located is the same as the p+q-th symbol in the symbol set J. There is a symbol offset at the positions of the symbols where the number of rated DMRSs are located; 1≤p≤the sixth quantity, 0≤q, and q is the difference between the fifth quantity and the sixth quantity.
一种通信装置，其特征在于，所述装置用于执行权利要求1至13中任一项所述的方法。A communication device, characterized in that, the device is configured to execute the method of any one of claims 1 to 13.
一种通信装置，包括：处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得所述装置执行如权利要求1至13中任一项所述的方法。A communication apparatus, comprising: a processor coupled to a memory for storing programs or instructions that, when executed by the processor, cause the apparatus to perform as claimed in the claims The method of any one of 1 to 13.
一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被执行时使得计算机执行如权利要求1至13中任一项所述的方法。A computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed, the computer executes the method according to any one of claims 1 to 13.
一种芯片，其特征在于，包括处理器，所述处理器与存储器耦合，所述存储器用于存储程序，当所述程序被所述处理器执行时，使得包含所述芯片的装置执行如权利要求1至13中任一项所述的方法。A chip, characterized in that it includes a processor, and the processor is coupled with a memory, and the memory is used for storing a program, and when the program is executed by the processor, the device including the chip is made to execute as claimed in the claim The method of any one of claims 1 to 13.