Method and apparatus for transmitting or receiving a physical uplink shared channel

Abstract

The present application provides a method and apparatus for transmitting or receiving a physical uplink shared channel. The method includes: receiving first indication information for indicating a first transmission resource for transmitting PUCCH or SRS; receiving second indication information for indicating a second transmission resource for transmitting PUSCH; and when there is overlapping time-domain resource between the first transmission resource and the second transmission resource, transmitting the PUSCH according to a preset rule. When there is overlapping time-domain resource between the first transmission resource and the second transmission resource, the terminal device and the network device determine the transmission mode on the overlapping time-domain resource based on a set of preset rules, which can avoid the failure of transmitting PUSCH on the overlapping time-domain resource due to signal conflict.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular, to a method and apparatus for transmitting or receiving a physical uplink shared channel (PUSCH). Background Art

[0002] In a wireless communication system, data sent by a network device to a terminal device is called downlink data, and data sent by the terminal device to the network device is called uplink data. Due to cost and volume reasons, the signal transmission ability of a terminal device is usually weaker than that of a network device, so that the coverage range of an uplink signal is usually smaller than that of a downlink signal. When the network device is located at the edge of the coverage range of the uplink signal, the transmission reliability of an uplink channel (such as PUSCH) decreases.

[0003] One method to improve the transmission reliability of an uplink channel is time slot aggregation. For example, different redundant versions of the same PUSCH are transmitted at the same position in a plurality of consecutive uplink time slots, and the network device can perform combined decoding on different redundant versions to improve the decoding success rate. However, the time domain resources of PUSCH may overlap with the time domain resources of other uplink signals, and how to transmit PUSCH on the overlapping time domain resources is a problem that needs to be solved currently. Summary of the Invention

[0004] This application provides a method and apparatus for transmitting or receiving PUSCH, which can provide a solution for transmitting PUSCH on overlapping time domain resources.

[0005] In a first aspect, a method for transmitting PUSCH is provided, including: receiving first indication information, where the first indication information is used to indicate a first transmission resource, and the first transmission resource is used to transmit a physical uplink control channel (PUCCH) or a sounding reference signal (SRS); receiving second indication information, where the second indication information is used to indicate a second transmission resource, and the second transmission resource is used to transmit PUSCH; when there is overlapping time domain resource between the first transmission resource and the second transmission resource, transmitting the PUSCH according to a preset rule.

[0006] The above method is executed by a terminal device, for example. When there is overlapping time domain resource between the first transmission resource and the second transmission resource, the terminal device and the network device determine the transmission mode on the overlapping time domain resource based on a set of preset rules, which can avoid the failure of transmitting PUSCH on the overlapping time domain resource caused by signal conflict.

[0007] Optionally, the preset rule includes: transmitting the PUSCH on the overlapping time-frequency resources, and not transmitting the PUCCH or the SRS on the overlapping time-frequency resources.

[0008] Transmitting the PUSCH on the overlapping time-frequency resources and refraining from transmitting the PUCCH or the SRS enables the PUSCH to occupy more time-domain resources. The network device can perform aggregated decoding on the PUSCH within multiple time-domain resources to improve the decoding success rate, and can successfully complete the transmission of the PUSCH even when the terminal device is far from the network device, thereby improving the uplink coverage.

[0009] Optionally, the first transmission resource is used to transmit the SRS, the overlapping time-frequency resources include a first time unit and a second time unit, the frequency-domain resource corresponding to the first time unit is different from the frequency-domain resource of the PUSCH, the frequency-domain resource corresponding to the second time unit is the same as the frequency-domain resource of the PUSCH, and the preset rule includes: not transmitting the SRS within the first time unit and transmitting the SRS within the second time unit; and transmitting the PUSCH within the first time unit and not transmitting the PUSCH within the second time unit.

[0010] The frequency-domain resource corresponding to the second time unit is the same as the frequency-domain resource of the PUSCH. Transmitting the SRS within the second time unit enables the network device to measure the quality of the frequency-domain resource of the PUSCH using the SRS, which is beneficial for the network device to allocate high-quality frequency-domain resources for the PUSCH, and can successfully complete the transmission of the PUSCH even when the terminal device is far from the network device, thereby improving the uplink coverage.

[0011] Optionally, the first transmission resource is used to transmit the SRS, the overlapping time-frequency resources include a first time unit and a second time unit, the frequency-domain resource corresponding to the first time unit is different from the frequency-domain resource of the PUSCH, the frequency-domain resource corresponding to the second time unit is the same as the frequency-domain resource of the PUSCH, and the preset rule includes: transmitting the SRS within the first time unit and not transmitting the SRS within the second time unit; and not transmitting the PUSCH within the first time unit and transmitting the PUSCH within the second time unit.

[0012] The frequency-domain resources corresponding to the first time unit are different from the frequency-domain resources of the PUSCH. Sending the SRS within the first time unit enables the network device to measure the quality of the frequency-domain resources corresponding to the first time unit using the SRS. If the quality of the frequency-domain resources corresponding to the first time unit is higher than the quality of the frequency-domain resources of the PUSCH, the network device can allocate the frequency-domain resources corresponding to the first time unit to the PUSCH during the subsequent transmission of the PUSCH, enabling the successful transmission of the PUSCH even when the terminal device is far from the network device, thereby improving the uplink coverage range.

[0013] Optionally, the preset rule includes: sending the PUCCH or the SRS on the overlapping time-domain resources, and not sending the PUSCH on the overlapping time-domain resources.

[0014] If the terminal device sends the PUSCH and the PUCCH (or SRS) on the overlapping time-domain resources, the network device may receive an incorrect PUSCH. When the network device combines and decodes the incorrect PUSCH with the correct PUSCH received on the non-overlapping time-domain resources, the decoding success rate of the overall PUSCH will be reduced. Therefore, in this embodiment, by abandoning the transmission of the PUSCH on the overlapping time-domain resources, the network device does not need to combine and decode the incorrect PUSCH with the correct PUSCH, thereby improving the decoding success rate of the overall PUSCH.

[0015] Optionally, the first transmission resource includes a first time unit, the second transmission resource includes a third time unit, the first time unit belongs to the overlapping time-domain resources, the third time unit does not belong to the overlapping time-domain resources, the position of the first time unit within the first time slot is the same as the position of the third time unit within the second time slot, and the first time slot is adjacent to the second time slot.

[0016] To improve the success rate of combined decoding, the PUSCH usually needs to occupy time units with the same time-domain position within multiple consecutive time slots. For example, the time units with the same time-domain position are the first time unit within the first time slot and the third time unit within the second time slot. When the first time unit is allocated to the PUCCH and the PUSCH, the PUCCH needs to be transmitted preferentially on the first time unit, so the PUSCH cannot occupy time units with the same time-domain position within multiple consecutive time slots. Usually, the terminal device will abandon the transmission of the PUSCH within the second time unit. In this embodiment, the terminal device transmits the PUSCH within the second time unit. Compared with the above normal situation, the PUSCH can be allocated more time-domain resources, improving the decoding success rate, and enabling the successful transmission of the PUSCH even when the terminal device is far from the network device, thereby improving the uplink coverage range.

[0017] Optionally, the overlapping time-domain resource is used to transmit the PUCCH, and the demodulation reference signal (DMRS) of the PUCCH is used to demodulate the PUCCH and the PUSCH.

[0018] In addition to being used to demodulate the PUCCH, the DMRS of the PUCCH can also be used to demodulate the PUSCH. Therefore, in this embodiment, the decoding success rate of the PUSCH can be improved, and the PUSCH can be successfully transmitted even when the terminal device is far from the network device, thereby improving the uplink coverage.

[0019] In a second aspect, a method for receiving a PUSCH is provided, including: sending first indication information for indicating a first transmission resource used to transmit a PUCCH or an SRS; sending second indication information for indicating a second transmission resource used to transmit the PUSCH; and when there is an overlapping time-domain resource between the first transmission resource and the second transmission resource, receiving the PUSCH according to a preset rule.

[0020] The above method is performed by a network device, for example. When there is an overlapping time-domain resource between the first transmission resource and the second transmission resource, the terminal device and the network device determine the transmission mode on the overlapping time-domain resource based on a set of preset rules, which can avoid the failure of receiving the PUSCH on the overlapping time-domain resource due to signal conflict.

[0021] Optionally, the preset rule includes: receiving the PUSCH on the overlapping time-domain resource, and not receiving the PUCCH or the SRS on the overlapping time-domain resource.

[0022] Receiving the PUSCH on the overlapping time-domain resource and giving up receiving the PUCCH or the SRS enables the PUSCH to occupy more time-domain resources. The network device can perform aggregated decoding on the PUSCHs within multiple time-domain resources to improve the decoding success rate, and the PUSCH can be successfully transmitted even when the terminal device is far from the network device, thereby improving the uplink coverage.

[0023] Optionally, the first transmission resource is used to transmit the SRS, the overlapping time-domain resource includes a first time unit and a second time unit, the frequency-domain resource corresponding to the first time unit is different from the frequency-domain resource of the PUSCH, the frequency-domain resource corresponding to the second time unit is the same as the frequency-domain resource of the PUSCH, and the preset rule includes: not receiving the SRS in the first time unit, receiving the SRS in the second time unit, and receiving the PUSCH in the first time unit and not receiving the PUSCH in the second time unit.

[0024] The frequency-domain resources corresponding to the second time unit are the same as the frequency-domain resources of the PUSCH. Receiving the SRS within the second time unit enables the network device to measure the quality of the frequency-domain resources of the PUSCH using the SRS, which is beneficial for the network device to allocate high-quality frequency-domain resources for the PUSCH, and can successfully complete the transmission of the PUSCH even when the terminal device is far from the network device, thereby improving the uplink coverage.

[0025] Optionally, the first transmission resource is used to transmit the SRS. The overlapping time-domain resources include a first time unit and a second time unit. The frequency-domain resources corresponding to the first time unit are different from the frequency-domain resources of the PUSCH, and the frequency-domain resources corresponding to the second time unit are the same as the frequency-domain resources of the PUSCH. The preset rule includes: receiving the SRS within the first time unit, not receiving the SRS within the second time unit, and not receiving the PUSCH within the first time unit, and receiving the PUSCH within the second time unit.

[0026] The frequency-domain resources corresponding to the first time unit are different from the frequency-domain resources of the PUSCH. Receiving the SRS within the first time unit enables the network device to measure the quality of the frequency-domain resources corresponding to the first time unit using the SRS. If the quality of the frequency-domain resources corresponding to the first time unit is higher than the quality of the frequency-domain resources of the PUSCH, the network device can allocate the frequency-domain resources corresponding to the first time unit for the PUSCH during the subsequent transmission of the PUSCH, thereby improving the uplink coverage.

[0027] Optionally, the preset rule includes: receiving the PUCCH or the SRS on the overlapping time-domain resources, and not receiving the PUSCH on the overlapping time-domain resources.

[0028] If the terminal device sends the PUSCH and the PUCCH (or SRS) on the overlapping time-domain resources, the network device may receive incorrect PUSCH. When the network device combines and decodes the incorrect PUSCH with the correct PUSCH received on the non-overlapping time-domain resources, the decoding success rate of the overall PUSCH will be reduced. Therefore, in this embodiment, by giving up receiving the PUSCH on the overlapping time-domain resources, the network device does not need to combine and decode the incorrect PUSCH with the correct PUSCH, and can successfully complete the transmission of the PUSCH even when the terminal device is far from the network device, thereby improving the decoding success rate of the overall PUSCH.

[0029] Optionally, the first transmission resource includes a first time unit, the second transmission resource includes a third time unit, the first time unit belongs to the overlapping time domain resource, the third time unit does not belong to the overlapping time domain resource, the position of the first time unit within the first time slot is the same as the position of the third time unit within the second time slot, and the first time slot is adjacent to the second time slot.

[0030] To improve the success rate of combined decoding, the PUSCH usually needs to occupy time units with the same time domain position within multiple consecutive time slots. Such time units with the same time domain position are, for example, the first time unit within the first time slot and the third time unit within the second time slot. When the first time unit is allocated to both the PUCCH and the PUSCH, the PUCCH needs to be preferentially transmitted on the first time unit, so the PUSCH cannot occupy time units with the same time domain position within multiple consecutive time slots. Under normal circumstances, the terminal device will give up transmitting the PUSCH within the second time unit. In this embodiment, the terminal device transmits the PUSCH within the second time unit, and the network device receives the PUSCH within the second time unit. Compared with the above normal situation, the PUSCH can be allocated more time domain resources, improving the decoding success rate and enabling the successful transmission of the PUSCH even when the terminal device is far from the network device, thereby improving the uplink coverage.

[0031] Optionally, the overlapping time domain resource is used to transmit the PUCCH, and the DMRS of the PUCCH is used to demodulate the PUCCH and the PUSCH.

[0032] The DMRS of the PUCCH can be used to demodulate not only the PUCCH but also the PUSCH. Therefore, this embodiment can improve the decoding success rate of the PUSCH and enable the successful transmission of the PUSCH even when the terminal device is far from the network device, thereby improving the uplink coverage.

[0033] In a third aspect, a device for transmitting the PUSCH is provided, including units for performing any of the methods in the first aspect.

[0034] In a fourth aspect, a device for receiving the PUSCH is provided, including units for performing any of the methods in the second aspect.

[0035] In a fifth aspect, a device for transmitting the PUSCH is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the device performs any of the methods in the first aspect.

[0036] In a sixth aspect, there is provided an apparatus for receiving a PUSCH, including a processor and a memory. The memory is configured to store a computer program, and the processor is configured to call and run the computer program from the memory, such that the apparatus executes any of the methods in the second aspect.

[0037] In a seventh aspect, there is provided a computer-readable medium storing program code, where the program code includes instructions for executing any of the methods in the first aspect.

[0038] In an eighth aspect, there is provided a computer-readable medium storing program code, where the program code includes instructions for executing any of the methods in the second aspect.

[0039] In a ninth aspect, there is provided a computer program product, which includes: computer program code that, when run on an apparatus for transmitting a PUSCH, causes the apparatus to execute any of the methods in the first aspect.

[0040] In a tenth aspect, there is provided a computer program product, which includes: computer program code that, when run on an apparatus for receiving a PUSCH, causes the apparatus to execute any of the methods in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 FIG. is a schematic diagram of a communication system provided by the present application;

[0042] Figure 2 FIG. is a schematic diagram of a time-domain resource configuration of a PUSCH provided by the present application;

[0043] Figure 3 FIG. is a schematic diagram of a time-domain resource configuration of an SRS and a PUCCH provided by the present application;

[0044] Figure 4 FIG. is a schematic diagram of a method for transmitting or receiving a PUSCH provided by the present application;

[0045] Figure 5 FIG. is a schematic diagram of another method for transmitting or receiving a PUSCH provided by the present application;

[0046] Figure 6 FIG. is a schematic diagram of yet another method for transmitting or receiving a PUSCH provided by the present application;

[0047] Figure 7 FIG. is a schematic diagram of yet another method for transmitting or receiving a PUSCH provided by the present application;

[0048] Figure 8It is a schematic diagram of another method for transmitting or receiving PUSCH provided by this application;

[0049] Figure 9 It is a schematic diagram of a device for transmitting PUSCH provided by this application;

[0050] Figure 10 It is a schematic diagram of a device for receiving PUSCH provided by this application;

[0051] Figure 11 It is a schematic diagram of an electronic device provided by this application. Detailed implementation manners

[0052] Next, the technical solutions in this application will be described with reference to the accompanying drawings.

[0053] First, the application scenario of this application will be introduced. Figure 1 It is a schematic diagram of a communication system applicable to this application.

[0054] The communication system 100 includes a network device 110 and a terminal device 120. The terminal device 120 communicates with the network device 110 through electromagnetic waves.

[0055] In this application, the terminal device 120 may include various handheld devices, vehicle-mounted devices, or wearable devices with wireless communication functions. For example, the user equipment (UE), mobile station (MS), etc. defined by the 3rd Generation Partnership Project (3GPP). rd generation partnership project, 3GPP).

[0056] The network device 110 may be a base station defined by 3GPP. For example, a base station (gNB) in a fifth-generation (5G) communication system. The network device 110 may also be a relay station, an access point, a vehicle-mounted device, a wearable device, and other types of communication devices.

[0057] The communication system 100 is only an example, and the communication system applicable to this application is not limited thereto.

[0058] The 5G communication system introduces a time slot aggregation transmission mode in the uplink transmission. That is, in multiple consecutive uplink time slots, the same-position uplink symbols are used to transmit different redundant versions of the same transport block. The network device 110 can combine the received multiple redundant versions to achieve a more efficient decoding result. For example, Figure 2As shown in the figure, a PUSCH is configured at the same symbol positions of time slots n+2 and n+3 respectively, and each PUSCH carries different redundant versions of a transport block, thereby improving the reliability of the PUSCH.

[0059] However, the uplink symbols configured with PUSCH may also be configured for other uplink channels, resulting in conflicts in uplink transmission.

[0060] Figure 3 A schematic diagram of the time-domain resource configuration of SRS and PUCCH is shown.

[0061] SRS is an uplink signal sent by the terminal device 120 for the network device 110 to perform uplink channel measurement. After the network device 110 determines the uplink channel quality based on the SRS, it adjusts parameters such as the codebook and code rate used by the terminal device 120 according to the uplink channel quality to improve the transmission efficiency. For example, in the case of high uplink channel quality, the terminal device 120 can use a higher code rate to transmit the PUSCH, thereby transmitting more content; in the case of poor uplink channel quality, the terminal device 120 can use a lower code rate to transmit the PUSCH to improve the transmission reliability. Usually, the SRS is located in several symbols at the end of the time slot. Figure 3 The SRS shown is located at the last symbol of time slot n+3 and overlaps with part of the time-domain resources of the PUSCH.

[0062] PUCCH is an uplink control channel used to carry uplink control signaling. Figure 3 The PUCCH shown is located at the last two symbols of time slot n+2 and overlaps with part of the time-domain resources of the PUSCH.

[0063] In addition to SRS and PUCCH, there are also some other situations where uplink signals or uplink channels overlap with the PUSCH. These situations may cause the PUSCH transmission on the overlapping time-domain resources to fail, resulting in a reduction in the coverage area of the PUSCH, and there is no solution in the prior art.

[0064] Taking the terminal device 120 as the UE and the network device 110 as the base station as an example, the method for sending or receiving PUSCH provided by this application is introduced in detail as follows. Figure 4 As shown in the figure, the method includes:

[0065] S410, the UE receives first indication information, and the first indication information is used to indicate a first transmission resource, and the first transmission resource is used to transmit PUCCH or SRS.

[0066] S420, the UE receives second indication information, and the second indication information is used to indicate a second transmission resource, and the second transmission resource is used to transmit PUSCH.

[0067] Accordingly, the base station sends the first indication information and the second indication information to the UE.

[0068] The first indication information may be a media access control (MAC) control element (CE), or downlink control information (DCI), or a radio resource control (RRC) message.

[0069] For example, when the first indication information is MAC CE or DCI, the base station can directly indicate the time-frequency resource location of the first transmission resource through the first indication information, that is, the first indication information contains the time-frequency resource location information of the first transmission resource; the base station can also trigger the UE to transmit PUCCH or SRS on the first transmission resource through the first indication information, that is, the first indication information does not contain the time-frequency resource location information of the first transmission resource; when the first indication information is an RRC message, the base station can configure the UE to transmit PUCCH or SRS periodically.

[0070] Similarly, the second indication information may be MAC CE, DCI or an RRC message. The second transmission resource may be directly indicated by the second indication information, or indirectly indicated by the second indication information (that is, the second indication information triggers the UE to transmit PUSCH on the second transmission resource), or configured by the second indication information.

[0071] The first indication information and the second indication information may be carried in one message, or may be carried in different messages respectively. When the first indication information and the second indication information are carried in different messages, the base station may send the first indication information first and then the second indication information, or send the second indication information first and then the first indication information, or send the first indication information and the second indication information simultaneously.

[0072] This application does not limit the specific forms of the first indication information and the second indication information, nor the sending and receiving methods.

[0073] The first transmission resource may include one or more time units and one or more frequency domain units; the second transmission resource may include one or more time units and one or more frequency domain units. The above time units may be symbols, time slots, subframes or radio frames, and the above frequency domain units may be subcarriers or frequency bands. This application does not limit the duration of the time unit and the bandwidth of the frequency domain unit.

[0074] After receiving the first indication information and the second indication information, the UE may perform the following steps.

[0075] S430. When there are overlapping time-domain resources between the first transmission resource and the second transmission resource, the PUSCH is sent according to a preset rule.

[0076] Correspondingly, after the network device sends the first indication information and the second indication information, it may perform:

[0077] When there are overlapping time-domain resources between the first transmission resource and the second transmission resource, the PUSCH is received according to a preset rule.

[0078] The above overlapping time-domain resources may be one or more symbols, or may be one or more time slots. The present application does not limit the duration of the overlapping time-domain resources.

[0079] The UE may determine that there are overlapping time-domain resources between the first transmission resource and the second transmission resource before sending the PUSCH, or may determine that there are overlapping time-domain resources between the first transmission resource and the second transmission resource during the process of sending the PUSCH. The present application does not limit the time when the UE determines that there are overlapping time-domain resources between the first transmission resource and the second transmission resource.

[0080] When there are overlapping time-domain resources between the first transmission resource and the second transmission resource, the terminal device and the network device determine the transmission mode on the overlapping time-domain resources based on a set of preset rules, which can avoid the failure of sending the PUSCH on the overlapping time-domain resources due to signal conflict.

[0081] Next, the specific content of the preset rule will be introduced in detail.

[0082] Preset rule 1: When the first indication information indicates that the first transmission resource is used for transmitting PUCCH or SRS, the PUSCH is sent on the overlapping time-domain resources, and the PUCCH or SRS is not sent on the overlapping time-domain resources.

[0083] As Figure 5 shown, some symbols in time slot n and time slot n + 1 are downlink time-domain resources. The base station configures some symbols in time slot n + 1, time slot n + 2, and time slot n + 3 for uplink transmission. n is an integer greater than or equal to 0. Among them, some symbols in time slot n + 1, time slot n + 2, and time slot n + 3 are used for transmitting PUSCH, and the last two symbols in time slot n + 2 are used for transmitting SRS or PUCCH.

[0084] In this embodiment, the first transmission resource is the last two symbols in time slot n + 2, the second transmission resource is some symbols in time slot n + 1, time slot n + 2, and time slot n + 3, and the overlapping time-domain resources are the last two symbols in time slot n + 2.

[0085] After the UE determines that there is an overlapping time domain resource between the first transmission resource and the second transmission resource, it can transmit the PUSCH within the last two symbols of slot n+2, and does not transmit the PUCCH or SRS within the last two symbols of slot n+2.

[0086] Optionally, the UE can transmit the PUSCH within the last symbol of slot n+2, and the other symbol is used to transmit other uplink signals or is not used to transmit any uplink signals. That is, the UE sends the PUSCH on the overlapping time domain resource, including: the UE sends the PUSCH on all the time domain resources of the overlapping time domain resource, or the UE sends the PUSCH on part of the time domain resources of the overlapping time domain resource.

[0087] For the non-overlapping time domain resources in the second transmission resource, the UE can use part or all of the resources in the non-overlapping transmission resource to transmit the PUSCH. Therefore, the UE sending the PUSCH according to preset rule 1 can be described as: the UE sends the PUSCH on part or all of the resources of the second transmission resource, and part or all of the resources of the second transmission resource include part or all of the overlapping time domain resources.

[0088] Correspondingly, the base station receiving the PUSCH according to preset rule 1 can be described as: the base station receives the PUSCH on part or all of the resources of the second transmission resource, and part or all of the resources of the second transmission resource include part or all of the overlapping time domain resources.

[0089] In the above embodiments, the UE sends the PUSCH on the overlapping time domain resource and abandons sending the PUCCH or SRS, so that the PUSCH can occupy more time domain resources. The base station can perform aggregated decoding on the PUSCH within multiple time domain resources to improve the decoding success rate, and can successfully complete the transmission of the PUSCH even when the UE is far from the base station, thereby improving the uplink coverage.

[0090] Preset rule 2: When the first indication information indicates that the first transmission resource is used to transmit the SRS, the SRS is not transmitted in the first time unit and the SRS is transmitted in the second time unit; and the PUSCH is transmitted in the first time unit and the PUSCH is not transmitted in the second time unit; where the first transmission resource is used to transmit the SRS, the overlapping time domain resource includes the first time unit and the second time unit, the frequency domain resource corresponding to the first time unit is different from the frequency domain resource of the PUSCH, and the frequency domain resource corresponding to the second time unit is the same as the frequency domain resource of the PUSCH. The first time unit can be before the second time unit or after the second time unit; the first time unit and the second time unit can each include N symbols, and N is a positive integer greater than or equal to 1.

[0091] Such asFigure 6 As shown, some symbols in time slot n and time slot n+1 are downlink time-domain resources. The base station configures some symbols in time slot n+1, time slot n+2, and time slot n+3 for uplink transmission. n is an integer greater than or equal to 0. Among them, some symbols in time slot n+1, time slot n+2, and time slot n+3 are used to transmit PUSCH, and the last two symbols in time slot n+2 are used to transmit SRS or PUCCH.

[0092] In this embodiment, the first transmission resource is the last two symbols in time slot n+2, the second transmission resource is some symbols in time slot n+1, time slot n+2, and time slot n+3, and the overlapping time-domain resource is the last two symbols in time slot n+2. In the overlapping time-domain resource, the first symbol is the first time unit, and its corresponding frequency-domain resource is different from the frequency-domain resource of PUSCH; the second symbol is the second time unit, and its corresponding frequency-domain resource is the same as the frequency-domain resource of PUSCH.

[0093] After the UE determines that there is an overlapping time-domain resource between the first transmission resource and the second transmission resource, it can transmit PUSCH in the first time unit and not transmit SRS in the first time unit, and can also transmit SRS in the second time unit and not transmit PUSCH in the second time unit; optionally, the symbols not used for transmitting PUSCH can be more than one symbol.

[0094] Optionally, the UE transmits PUSCH in the first time unit, including: the UE transmits PUSCH on all the time-domain resources of the first time unit, or the UE transmits PUSCH on some of the time-domain resources of the first time unit.

[0095] For the non-overlapping time-domain resources in the second transmission resource, the UE can use some or all of the resources in the non-overlapping transmission resources to transmit PUSCH. Therefore, the UE transmitting PUSCH according to preset rule 2 can be described as: the UE transmits PUSCH on some or all of the resources of the second transmission resource, and some or all of the resources of the second transmission resource include some or all of the first time units. The UE transmitting SRS according to preset rule 2 can be described as: the UE transmits SRS on some or all of the resources of the first transmission resource, and some or all of the resources of the first transmission resource include some or all of the second time units.

[0096] Correspondingly, the base station receiving PUSCH according to preset rule 2 can be described as: the base station receives PUSCH on some or all of the resources of the second transmission resource, and some or all of the resources of the second transmission resource include some or all of the first time units. The base station receiving SRS according to preset rule 2 can be described as: the base station receives SRS on some or all of the resources of the first transmission resource, and some or all of the resources of the first transmission resource include some or all of the second time units.

[0097] When the UE transmits SRS and PUSCH, the transmission power of SRS can be the same as the transmission power of some symbols of PUSCH. For example, the transmission power of SRS is the same as the power on the time-frequency resources corresponding to the DMRS of PUSCH; or, the transmission power of SRS is the same as the total power on each symbol of PUSCH.

[0098] In this embodiment, the frequency-domain resources corresponding to the second time unit are the same as the frequency-domain resources of PUSCH. Transmitting SRS within the second time unit enables the base station to measure the quality of the frequency-domain resources of PUSCH using SRS, which is beneficial for the base station to allocate high-quality frequency-domain resources for PUSCH. When the UE is far from the base station, the transmission of PUSCH can also be successfully completed, thereby improving the uplink coverage range.

[0099] Preset rule 3: When the first indication information indicates that the first transmission resource is used for transmitting SRS, SRS is transmitted within the first time unit and not transmitted within the second time unit; and, PUSCH is not transmitted within the first time unit and is transmitted within the second time unit; where the first transmission resource is used for transmitting the SRS, the overlapping time-domain resources include the first time unit and the second time unit, the frequency-domain resources corresponding to the first time unit are different from the frequency-domain resources of the PUSCH, and the frequency-domain resources corresponding to the second time unit are the same as the frequency-domain resources of the PUSCH. The first time unit can be before the second time unit or after the second time unit; the first time unit and the second time unit can each include N symbols, and N is a positive integer greater than or equal to 1.

[0100] As Figure 7 shown, some symbols in slot n and slot n + 1 are downlink time-domain resources. The base station configures some symbols in slot n + 1, slot n + 2, and slot n + 3 for uplink transmission, where n is an integer greater than or equal to 0. Among them, some symbols in slot n + 1, slot n + 2, and slot n + 3 are used for transmitting PUSCH, and the last two symbols in slot n + 2 are used for transmitting SRS or PUCCH.

[0101] In this embodiment, the first transmission resource is the last two symbols in slot n + 2, the second transmission resource is some symbols in slot n + 1, slot n + 2, and slot n + 3, and the overlapping time-domain resource is the last two symbols in slot n + 2. Among the overlapping time-domain resources, the first symbol is the first time unit, and its corresponding frequency-domain resources are different from the frequency-domain resources of PUSCH; the second symbol is the second time unit, and its corresponding frequency-domain resources are the same as the frequency-domain resources of PUSCH.

[0102] After the UE determines that there is an overlapping time domain resource between the first transmission resource and the second transmission resource, it can transmit the SRS in the first time unit and not transmit the PUSCH in the first time unit. It can also transmit the PUSCH in the second time unit and not transmit the SRS in the second time unit. Optionally, there can be more than one symbol that is not used for transmitting the PUSCH.

[0103] Optionally, the UE transmits the PUSCH in the second time unit, including: the UE transmits the PUSCH on all the time domain resources of the second time unit, or the UE transmits the PUSCH on some of the time domain resources of the second time unit.

[0104] For the non-overlapping time domain resources in the second transmission resource, the UE can use some or all of the resources in the non-overlapping transmission resources to transmit the PUSCH. Therefore, the UE transmitting the PUSCH according to the preset rule 3 can be described as: the UE transmits the PUSCH on some or all of the resources of the second transmission resource, and some or all of the resources of the second transmission resource include some or all of the second time units. The UE transmitting the SRS according to the preset rule 2 can be described as: the UE transmits the SRS on some or all of the resources of the first transmission resource, and some or all of the resources of the first transmission resource include some or all of the first time units.

[0105] Correspondingly, the base station receiving the PUSCH according to the preset rule 3 can be described as: the base station receives the PUSCH on some or all of the resources of the second transmission resource, and some or all of the resources of the second transmission resource include some or all of the second time units. The base station receiving the SRS according to the preset rule 2 can be described as: the base station receives the SRS on some or all of the resources of the first transmission resource, and some or all of the resources of the first transmission resource include some or all of the first time units.

[0106] In this embodiment, the frequency domain resource corresponding to the first time unit is different from the frequency domain resource of the PUSCH. Transmitting the SRS in the first time unit enables the network device to measure the quality of the frequency domain resource corresponding to the first time unit using the SRS. If the quality of the frequency domain resource corresponding to the first time unit is higher than the quality of the frequency domain resource of the PUSCH, the network device can allocate the frequency domain resource corresponding to the first time unit for the PUSCH during the subsequent transmission of the PUSCH, thereby improving the uplink coverage.

[0107] Preset rule 4: When the first indication information indicates that the first transmission resource is used for transmitting the PUCCH or SRS, transmit the PUCCH or SRS on the overlapping time domain resource, and do not transmit the PUSCH on the overlapping time domain resource.

[0108] Such as Figure 8As shown, some symbols in time slot n and time slot n+1 are downlink time domain resources. The base station configures some symbols in time slot n+1, time slot n+2, and time slot n+3 for uplink transmission. n is an integer greater than or equal to 0. Among them, some uplink time domain resources are used to transmit PUSCH, and the last two symbols in time slot n+2 are used to transmit SRS or PUCCH.

[0109] After the UE determines that there is overlapping time domain resource between the first transmission resource and the second transmission resource, the UE can transmit PUCCH or SRS within the last two symbols in time slot n+2, and does not transmit PUSCH within the last two symbols in time slot n+2; optionally, the number of symbols not used for transmitting PUSCH can be more than two symbols.

[0110] Optionally, the UE can transmit PUCCH or SRS within the last symbol in time slot n+2, and the other symbol is used to transmit other uplink signals or is not used for transmitting any uplink signals. That is, the UE transmits PUCCH or SRS on the overlapping time domain resource, including: the UE transmits PUCCH or SRS on all the time domain resources of the overlapping time domain resource, or the UE transmits PUCCH or SRS on part of the time domain resources of the overlapping time domain resource.

[0111] For the non-overlapping time domain resources in the second transmission resource, the UE can use part or all of the resources in the non-overlapping transmission resource to transmit PUSCH. Therefore, the UE transmitting PUSCH according to the preset rule 4 can be described as: the UE transmits PUSCH on part or all of the resources of the second transmission resource, and part or all of the resources of the second transmission resource do not include the overlapping time domain resource.

[0112] Correspondingly, the base station receiving PUSCH according to the preset rule 4 can be described as: the base station receives PUSCH on part or all of the resources of the second transmission resource, and part or all of the resources of the second transmission resource do not include the overlapping time domain resource.

[0113] In this embodiment, if the terminal device transmits PUSCH and PUCCH (or SRS) on the overlapping time domain resource, the network device may receive incorrect PUSCH. When the network device combines and decodes the incorrect PUSCH with the correct PUSCH received on the non-overlapping time domain resource, the decoding success rate of the overall PUSCH will be reduced. Therefore, in this embodiment, by abandoning the transmission of PUSCH on the overlapping time domain resource, the network device does not need to combine and decode the incorrect PUSCH with the correct PUSCH, thereby improving the decoding success rate of the overall PUSCH.

[0114] In addition, in Figure 8In the illustrated embodiment, in order to improve the success rate of combined decoding, the PUSCH generally needs to occupy time units with the same time domain position within multiple consecutive time slots. For example, the time units with the same time domain position are the first time unit in the first time slot and the third time unit in the second time slot. When the first time unit is allocated to both the PUCCH and the PUSCH, the PUCCH needs to be preferentially transmitted in the first time unit, so the PUSCH cannot occupy time units with the same time domain position within multiple consecutive time slots. Generally, the terminal device will give up transmitting the PUSCH in the second time unit. In this embodiment, the terminal device transmits the PUSCH in the second time unit. Compared with the above general situation, the PUSCH can be allocated more time domain resources, improving the decoding success rate and thus increasing the uplink coverage range.

[0115] Optionally, when the overlapping time domain resources are used to transmit the PUCCH, the DMRS of the PUCCH can be used not only for demodulating the PUCCH but also for demodulating the PUSCH. Therefore, this embodiment can improve the decoding success rate of the PUSCH and thus increase the uplink coverage range.

[0116] The above text details examples of the method for transmitting or receiving the PUSCH provided in this application. It can be understood that the device for transmitting or receiving the PUSCH includes the corresponding hardware structure and / or software module for performing each function in order to achieve the above functions. Those skilled in the art should easily realize that, combining the units and algorithm steps of each example described in the embodiments disclosed herein, this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the form of hardware or computer software driving the hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0117] This application can divide the device for transmitting or receiving the PUSCH into functional units according to the above method examples. For example, each function can be divided into respective functional units, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. It should be noted that the division of units in this application is illustrative, only a logical function division, and there can be other division methods in actual implementation.

[0118] Figure 9 The structural schematic diagram of a device for transmitting the PUSCH provided in this application is shown.

[0119] The device 900 includes a processing unit 910, a transmitting unit 920, and a receiving unit 930. Among them, the transmitting unit 920 is capable of performing a transmitting operation under the control of the processing unit 910, and the receiving unit 930 is capable of performing a receiving operation under the control of the processing unit 910.

[0120] The receiving unit 930 is configured to: receive first indication information for indicating a first transmission resource for transmitting PUCCH or SRS; receive second indication information for indicating a second transmission resource for transmitting PUSCH.

[0121] The transmitting unit 920 is configured to: when there is overlapping time-domain resource between the first transmission resource and the second transmission resource, transmit the PUSCH according to a preset rule.

[0122] Optionally, the preset rule includes: transmitting the PUSCH on the overlapping time-domain resource, and not transmitting the PUCCH or the SRS on the overlapping time-domain resource.

[0123] Optionally, the first transmission resource is for transmitting SRS, the overlapping time-domain resource includes a first time unit and a second time unit, the frequency-domain resource corresponding to the first time unit is different from the frequency-domain resource of the PUSCH, and the frequency-domain resource corresponding to the second time unit is the same as the frequency-domain resource of the PUSCH. The preset rule includes: not transmitting the SRS in the first time unit and transmitting the SRS in the second time unit; and transmitting the PUSCH in the first time unit and not transmitting the PUSCH in the second time unit.

[0124] Optionally, the first transmission resource is for transmitting SRS, the overlapping time-domain resource includes a first time unit and a second time unit, the frequency-domain resource corresponding to the first time unit is different from the frequency-domain resource of the PUSCH, and the frequency-domain resource corresponding to the second time unit is the same as the frequency-domain resource of the PUSCH. The preset rule includes: transmitting the SRS in the first time unit and not transmitting the SRS in the second time unit; and not transmitting the PUSCH in the first time unit and transmitting the PUSCH in the second time unit.

[0125] Optionally, the preset rule includes: transmitting the PUCCH or the SRS on the overlapping time-domain resource, and not transmitting the PUSCH on the overlapping time-domain resource.

[0126] Optionally, the first transmission resource includes a first time unit, the second transmission resource includes a third time unit, the first time unit belongs to the overlapping time domain resource, the third time unit does not belong to the overlapping time domain resource, the position of the first time unit within a first time slot is the same as the position of the third time unit within a second time slot, and the first time slot is adjacent to the second time slot.

[0127] Optionally, the overlapping time domain resource is used to transmit the PUCCH, and the DMRS of the PUCCH is used to demodulate the PUCCH and the PUSCH.

[0128] For the specific manner in which apparatus 900 performs PUSCH transmission and the beneficial effects achieved, reference may be made to the relevant descriptions in the foregoing method embodiments.

[0129] Figure 10 The figure shows a schematic structural diagram of an apparatus for receiving a PUSCH provided in this application.

[0130] Apparatus 1000 includes a processing unit 1010, a transmitting unit 1020, and a receiving unit 1030. Among them, the transmitting unit 1020 is capable of performing a transmission operation under the control of the processing unit 1010, and the receiving unit 1030 is capable of performing a receiving operation under the control of the processing unit 1010.

[0131] The transmitting unit 1020 is configured to: transmit first indication information for indicating a first transmission resource for transmitting a PUCCH or an SRS; and transmit second indication information for indicating a second transmission resource for transmitting a PUSCH.

[0132] The receiving unit 1030 is configured to: when there is an overlapping time domain resource between the first transmission resource and the second transmission resource, receive the PUSCH according to a preset rule.

[0133] Optionally, the preset rule includes: receiving the PUSCH on the overlapping time domain resource, and not receiving the PUCCH or the SRS on the overlapping time domain resource.

[0134] Optionally, the first transmission resource is used to transmit the SRS. The overlapping time domain resource includes a first time unit and a second time unit. The frequency domain resource corresponding to the first time unit is different from the frequency domain resource of the PUSCH, and the frequency domain resource corresponding to the second time unit is the same as the frequency domain resource of the PUSCH. The preset rule includes: not receiving the SRS within the first time unit and receiving the SRS within the second time unit; and receiving the PUSCH within the first time unit and not receiving the PUSCH within the second time unit.

[0135] Optionally, the first transmission resource is used to transmit the SRS. The overlapping time domain resource includes a first time unit and a second time unit. The frequency domain resource corresponding to the first time unit is different from the frequency domain resource of the PUSCH, and the frequency domain resource corresponding to the second time unit is the same as the frequency domain resource of the PUSCH. The preset rule includes: receiving the SRS within the first time unit and not receiving the SRS within the second time unit; and not receiving the PUSCH within the first time unit and receiving the PUSCH within the second time unit.

[0136] Optionally, the preset rule includes: receiving the PUCCH or the SRS on the overlapping time domain resource, and not receiving the PUSCH on the overlapping time domain resource.

[0137] Optionally, the first transmission resource includes a first time unit, the second transmission resource includes a third time unit. The first time unit belongs to the overlapping time domain resource, the third time unit does not belong to the overlapping time domain resource. The position of the first time unit in the first time slot is the same as the position of the third time unit in the second time slot, and the first time slot is adjacent to the second time slot.

[0138] Optionally, the overlapping time domain resource is used to transmit the PUCCH, and the DMRS of the PUCCH is used to demodulate the PUCCH and the PUSCH.

[0139] The specific manner in which the apparatus 1000 receives the PUSCH and the beneficial effects produced can be referred to the relevant descriptions in the above method embodiments.

[0140] Figure 11 The structural schematic diagram of an electronic device provided in the present application is shown. The electronic device 1100 can be used to implement the method described in the above method embodiments. The electronic device 1100 can be a chip, a terminal device, or a network device.

[0141] The electronic device 1100 includes one or more processors 1101, and the one or more processors 1101 can support the electronic device 1100 to implement the methods in the method embodiments. The processor 1101 can be a general-purpose processor or a dedicated processor. For example, the processor 1101 can be a central processing unit (CPU) or a baseband processor. The baseband processor can be used to process communication data (e.g., PUSCH), and the CPU can be used to control the electronic device 1100, execute software programs, and process the data of the software programs.

[0142] The electronic device 1100 may further include a transceiver unit 1105 and an antenna 1106 for implementing signal input (reception) and output (transmission).

[0143] For example, the electronic device 1100 can be a chip, the transceiver unit 1105 can be the input circuit and / or output circuit of the chip, or the transceiver unit 1105 can be the communication interface of the chip, and the chip can be a component of a terminal device or a network device.

[0144] The electronic device 1100 may include one or more memories 1102, in which there is a program 1104. The program 1104 can be run by the processor 1101 to generate instructions 1103, so that the processor 1101 executes the methods described in the above method embodiments according to the instructions 1103. Optionally, data may also be stored in the memory 1102. Optionally, the processor 1101 can also read the data stored in the memory 1102. The data can be stored at the same storage address as the program 1104, or the data can be stored at a different storage address from the program 1104.

[0145] The processor 1101 and the memory 1102 can be set separately or integrated together. For example, they can be integrated on a system on chip (SOC).

[0146] It should be understood that the steps of the above method embodiments can be completed by the logic circuit in the form of hardware or the instructions in the form of software in the processor 1101. The processor 1101 can be a CPU, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices. For example, discrete gates, transistor logic devices, or discrete hardware components.

[0147] The specific manner in which the electronic device 1100 executes the method of transmitting or receiving PUSCH and the beneficial effects produced can be referred to the relevant descriptions in the above method embodiments.

[0148] The present application also provides a computer program product, which implements the communication method described in any method embodiment of the present application when executed by the processor 1101.

[0149] The computer program product can be stored in the memory 1102, for example, it is the program 1104. The program 1104 is finally converted into an executable target file that can be executed by the processor 1101 after processes such as preprocessing, compilation, assembly, and linking.

[0150] The present application also provides a computer-readable storage medium, on which a computer program is stored. The computer program implements the communication method described in any method embodiment of the present application when executed by a computer. The computer program can be a high-level language program or an executable target program.

[0151] The computer-readable storage medium is, for example, the memory 1102. The memory 1102 can be a volatile memory or a non-volatile memory, or the memory 1102 can include both a volatile memory and a non-volatile memory at the same time. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0152] Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0153] In several embodiments provided in this application, the disclosed systems, devices, and methods can be implemented in other ways. For example, some features of the above-described method embodiments can be ignored or not executed. The device embodiments described above are merely illustrative. The division of units is only a logical function division, and there may be other division methods in actual implementation. Multiple units or components can be combined or integrated into another system. In addition, the coupling between units or the coupling between components can be direct coupling or indirect coupling. The above coupling includes electrical, mechanical, or other forms of connection.

[0154] It should be understood that in various embodiments of this application, the magnitudes of the sequence numbers of the various processes do not mean the order of execution. The order of execution of the various processes should be determined by their functions and internal logics, and should not constitute any limitation to the implementation process of the embodiments of this application.

[0155] In addition, the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0156] In summary, the above description is only a preferred embodiment of the technical solution of this application and is not used to limit the protection scope of this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A method for transmitting a physical uplink shared channel, characterized in that, including: receiving first indication information for indicating a first transmission resource for transmitting a sounding reference signal (SRS); receiving second indication information for indicating a second transmission resource for transmitting a physical uplink shared channel (PUSCH); when there is overlapping time-domain resource between the first transmission resource and the second transmission resource, transmitting the PUSCH according to a preset rule; wherein when the first transmission resource meets condition 1, the preset rule includes rule 1 or rule 2; condition 1: the first transmission resource is for transmitting the SRS, the overlapping time-domain resource includes a first time unit and a second time unit, the frequency-domain resource corresponding to the first time unit is different from the frequency-domain resource of the PUSCH, and the frequency-domain resource corresponding to the second time unit is the same as the frequency-domain resource of the PUSCH; rule 1: not transmitting the SRS in the first time unit and transmitting the SRS in the second time unit; and transmitting the PUSCH in the first time unit and not transmitting the PUSCH in the second time unit; rule 2: transmitting the SRS in the first time unit and not transmitting the SRS in the second time unit; and not transmitting the PUSCH in the first time unit and transmitting the PUSCH in the second time unit; 2. A method for receiving a Physical Uplink Shared Channel, characterized in that, including: sending first indication information for indicating a first transmission resource for transmitting a sounding reference signal (SRS); sending second indication information for indicating a second transmission resource for transmitting a physical uplink shared channel (PUSCH); when there is overlapping time-domain resource between the first transmission resource and the second transmission resource, receiving the PUSCH according to a preset rule; wherein when the first transmission resource meets condition 1, the preset rule includes rule 1 or rule 2; condition 1: the first transmission resource is for transmitting the SRS, the overlapping time-domain resource includes a first time unit and a second time unit, the frequency-domain resource corresponding to the first time unit is different from the frequency-domain resource of the PUSCH, and the frequency-domain resource corresponding to the second time unit is the same as the frequency-domain resource of the PUSCH; rule 1: not receiving the SRS in the first time unit and receiving the SRS in the second time unit; and receiving the PUSCH in the first time unit and not receiving the PUSCH in the second time unit; rule 2: receiving the SRS in the first time unit and not receiving the SRS in the second time unit; and not receiving the PUSCH in the first time unit and receiving the PUSCH in the second time unit; 3. An apparatus for transmitting a Physical Uplink Shared Channel, characterized in that It includes a processor and a memory, the processor and the memory being coupled, the memory being used for storing a computer program, which, when executed by the processor, causes the device to execute the method recited in claim 1.

4. A device for receiving a physical uplink shared channel, characterized in that, It includes a processor and a memory, the processor and the memory being coupled, the memory being used for storing a computer program, which, when executed by the processor, causes the device to execute the method recited in claim 2.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which, when executed by a processor, causes the processor to execute the method recited in any one of claims 1 to 2.

6. A chip, characterized in that, It includes a processor, which, when executing instructions, executes the method recited in any one of claims 1 to 2.

Images