CN114007268A

CN114007268A - Method and device for transmitting or receiving physical uplink shared channel

Info

Publication number: CN114007268A
Application number: CN202010950592.9A
Authority: CN
Inventors: 刘云
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-07-28
Filing date: 2020-09-10
Publication date: 2022-02-01
Also published as: WO2022022378A1

Abstract

The application provides a method and a device for sending or receiving a physical uplink shared channel, wherein the method comprises the following steps: receiving first indication information, wherein the first indication information is used for indicating a first transmission resource, and the first transmission resource is used for transmitting a PUCCH or SRS; receiving second indication information, wherein the second indication information is used for indicating second transmission resources, and the second transmission resources are used for transmitting PUSCH; and when the first transmission resource and the second transmission resource have the overlapped time domain resource, sending the PUSCH according to a preset rule. When the first transmission resource and the second transmission resource have the overlapped time domain resource, the terminal device and the network device determine the transmission mode on the overlapped time domain resource based on a set of preset rules, so that the failure of PUSCH transmission on the overlapped time domain resource caused by signal collision can be avoided.

Description

Method and device for transmitting or receiving physical uplink shared channel

Technical Field

The present application relates to the field of communications, and in particular, to a method and an apparatus for transmitting or receiving a Physical Uplink Shared Channel (PUSCH).

Background

In a wireless communication system, data transmitted from a network device to a terminal device is called downlink data, and data transmitted from the terminal device to the network device is called uplink data. Due to cost and size reasons, the signal transmission capability of the terminal device is usually weaker than that of the network device, so that the coverage of the uplink signal is usually smaller than that of the downlink signal, and when the network device is located at the edge of the coverage of the uplink signal, the transmission reliability of the uplink channel (such as PUSCH) is reduced.

One method for improving the transmission reliability of the uplink channel is timeslot aggregation, for example, different redundancy versions of the same PUSCH are transmitted at the same position of consecutive uplink timeslots, and the network device may perform merging decoding on the different redundancy versions to improve the decoding success rate. However, the time domain resource of the PUSCH may coincide with the time domain resource of other uplink signals, and how to transmit the PUSCH on the coinciding time domain resource is a problem that needs to be solved currently.

Disclosure of Invention

The application provides a method and a device for sending or receiving a PUSCH (physical uplink shared channel), which can provide a solution for transmitting the PUSCH on a coincident time domain resource.

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, wherein the second indication information is used for indicating second transmission resources, and the second transmission resources are used for transmitting PUSCH; and when the first transmission resource and the second transmission resource have the overlapped time domain resource, sending the PUSCH according to a preset rule.

The above method is performed by a terminal device, for example. When the first transmission resource and the second transmission resource have the overlapped time domain resource, the terminal device and the network device determine the transmission mode on the overlapped time domain resource based on a set of preset rules, so that the failure of PUSCH transmission on the overlapped time domain resource caused by signal collision can be avoided.

Optionally, the preset rule includes: transmitting the PUSCH on the coincident time domain resource, and not transmitting the PUCCH or the SRS on the coincident time domain resource.

And transmitting the PUSCH on the overlapped time domain resource and abandoning to transmit the PUCCH or the SRS, so that the PUSCH can occupy more time domain resources. The network equipment can perform aggregate decoding on the PUSCHs in a plurality of time domain resources to improve the decoding success rate, and the transmission of the PUSCHs can be successfully completed when the terminal equipment is far away from the network equipment, so that the uplink coverage range is improved.

Optionally, the first transmission resource is configured to transmit the SRS, the overlapped time domain resource includes a first time unit and a second time unit, a frequency domain resource corresponding to the first time unit is different from a frequency domain resource of the PUSCH, a 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 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.

The frequency domain resource corresponding to the second time unit is the same as the frequency domain resource of the PUSCH, the SRS is sent in the second time unit, so that the network equipment can measure the quality of the frequency domain resource of the PUSCH by using the SRS, the network equipment is favorable for distributing the high-quality frequency domain resource for the PUSCH, and the transmission of the PUSCH can be successfully completed when the terminal equipment is far away from the network equipment, so that the uplink coverage range can be improved.

Optionally, the first transmission resource is configured to transmit the SRS, the overlapped time domain resource includes a first time unit and a second time unit, a frequency domain resource corresponding to the first time unit is different from a frequency domain resource of the PUSCH, a 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 in the first time unit, and not transmitting the SRS in the second time unit; and, the PUSCH is not transmitted in the first time unit and is transmitted in 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 SRS is transmitted in the first time unit, so that the network equipment can measure the quality of the frequency domain resource corresponding to the first time unit by using the SRS. If the quality of the frequency domain resource corresponding to the first time unit is higher than that of the frequency domain resource of the PUSCH, the network device may allocate the frequency domain resource corresponding to the first time unit to the PUSCH in the subsequent transmission process of the PUSCH, and may successfully complete the transmission of the PUSCH even when the terminal device is far away from the network device, so that the uplink coverage may be improved.

Optionally, the preset rule includes: transmitting the PUCCH or SRS over the coincident time domain resources and not transmitting the PUSCH over the coincident time domain resources.

If the terminal device sends the PUSCH and the PUCCH (or SRS) in the overlapped time domain resource, the network device may receive an erroneous PUSCH, and when the network device combines and decodes the erroneous PUSCH and the correct PUSCH received in the non-overlapped time domain resource, the decoding success rate of the overall PUSCH may be reduced. Therefore, in the embodiment, the PUSCH is abandoned to be transmitted on the overlapped time domain resource, so that the network device does not need to combine and decode the wrong PUSCH and the correct PUSCH, and the decoding success rate of the whole PUSCH is improved.

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 overlapped time domain resource, the third time unit does not belong to the overlapped time domain resource, a position of the first time unit in a first time slot is the same as a position of the third time unit in a second time slot, and the first time slot is adjacent to the second time slot.

In order to improve the success rate of the combined decoding, the PUSCH generally needs to occupy the same time unit in the same time domain position in a plurality of consecutive slots, for example, a first time unit in a first slot and a third time unit in a second slot. When the first time unit is allocated to the PUCCH and the PUSCH, the first time unit needs to transmit the PUCCH preferentially, and the PUSCH cannot occupy the time unit with the same time domain position in a plurality of consecutive slots, and the terminal device may give up transmitting the PUSCH in the second time unit in a normal case. In this embodiment, the terminal device transmits the PUSCH in the second time unit, and compared with the above general case, the PUSCH can be allocated with more time domain resources, so that the decoding success rate is improved, and when the terminal device is far away from the network device, the transmission of the PUSCH can also be successfully completed, thereby improving the uplink coverage.

Optionally, the coincident time domain resources are used for transmitting the PUCCH, and a demodulation reference signal (DMRS) of the PUCCH is used for demodulating the PUCCH and the PUSCH.

The DMRS of the PUCCH may be used to demodulate the PUSCH in addition to the PUCCH, so that the decoding success rate of the PUSCH may be improved, and when the terminal device is far away from the network device, the transmission of the PUSCH may also be successfully completed, thereby improving the uplink coverage.

In a second aspect, a method for receiving a PUSCH is provided, including: sending first indication information, wherein the first indication information is used for indicating a first transmission resource, and the first transmission resource is used for transmitting a PUCCH or SRS; sending second indication information, wherein the second indication information is used for indicating second transmission resources, and the second transmission resources are used for transmitting PUSCH; and when the first transmission resource and the second transmission resource have the overlapped time domain resource, receiving the PUSCH according to a preset rule.

The above method is performed by a network device, for example. When the first transmission resource and the second transmission resource have the overlapped time domain resource, the terminal device and the network device determine the transmission mode on the overlapped time domain resource based on a set of preset rules, so that the failure of receiving the PUSCH on the overlapped time domain resource caused by signal collision can be avoided.

Optionally, the preset rule includes: receiving the PUSCH on the coincident time domain resource and not receiving the PUCCH or the SRS on the coincident time domain resource.

And receiving the PUSCH on the overlapped time domain resource and abandoning to receive the PUCCH or the SRS, so that the PUSCH can occupy more time domain resources. The network equipment can perform aggregate decoding on the PUSCHs in a plurality of time domain resources to improve the decoding success rate, and the transmission of the PUSCHs can be successfully completed when the terminal equipment is far away from the network equipment, so that the uplink coverage range is improved.

Optionally, the first transmission resource is configured to transmit the SRS, the overlapped time domain resource includes a first time unit and a second time unit, a frequency domain resource corresponding to the first time unit is different from a frequency domain resource of the PUSCH, a 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: the SRS is not received in the first time unit, the SRS is received in the second time unit, and the PUSCH is received in the first time unit and not received in the second time unit.

The frequency domain resource corresponding to the second time unit is the same as the frequency domain resource of the PUSCH, the SRS is received in the second time unit, so that the network equipment can measure the quality of the frequency domain resource of the PUSCH by using the SRS, the network equipment is favorable for distributing the high-quality frequency domain resource for the PUSCH, and the transmission of the PUSCH can be successfully completed when the terminal equipment is far away from the network equipment, so that the uplink coverage range can be improved.

Optionally, the first transmission resource is configured to transmit the SRS, the overlapped time domain resource includes a first time unit and a second time unit, a frequency domain resource corresponding to the first time unit is different from a frequency domain resource of the PUSCH, a 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: the SRS is received in the first time unit, the SRS is not received in the second time unit, and the PUSCH is not received in the first time unit and the PUSCH is received in 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 reception of 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 by using the SRS. If the quality of the frequency domain resource corresponding to the first time unit is higher than that of the frequency domain resource of the PUSCH, the network device may allocate the frequency domain resource corresponding to the first time unit to the PUSCH in the subsequent transmission process of the PUSCH, so that the uplink coverage may be improved.

Optionally, the preset rule includes: receiving the PUCCH or SRS over the coincident time domain resources and not receiving the PUSCH over the coincident time domain resources.

If the terminal device sends the PUSCH and the PUCCH (or SRS) in the overlapped time domain resource, the network device may receive an erroneous PUSCH, and when the network device combines and decodes the erroneous PUSCH and the correct PUSCH received in the non-overlapped time domain resource, the decoding success rate of the overall PUSCH may be reduced. Therefore, in the embodiment, by abandoning the reception of the PUSCH on the overlapped time domain resource, the network device does not need to combine and decode the erroneous PUSCH and the correct PUSCH, and the transmission of the PUSCH can also be successfully completed when the terminal device is far away from the network device, thereby improving the decoding success rate of the entire PUSCH.

In order to improve the success rate of the combined decoding, the PUSCH generally needs to occupy the same time unit in the same time domain position in a plurality of consecutive slots, for example, a first time unit in a first slot and a third time unit in a second slot. When the first time unit is allocated to the PUCCH and the PUSCH, the first time unit needs to transmit the PUCCH preferentially, and the PUSCH cannot occupy the time unit with the same time domain position in a plurality of consecutive slots, and the terminal device may give up transmitting the PUSCH in the second time unit in a normal case. In this embodiment, the terminal device transmits the PUSCH in the second time unit, and the network device receives the PUSCH in the second time unit, and compared with the above general case, the PUSCH can be allocated to more time domain resources, so that the decoding success rate is improved, and when the terminal device is far away from the network device, the transmission of the PUSCH can also be successfully completed, thereby improving the uplink coverage.

Optionally, the coincident time domain resources are used for transmitting the PUCCH, and the DMRS of the PUCCH is used for demodulating the PUCCH and the PUSCH.

In a third aspect, an apparatus for transmitting PUSCH is provided that includes means for performing any of the methods of the first aspect.

In a fourth aspect, an apparatus for receiving PUSCH is provided that includes means for performing any of the methods of the second aspect.

In a fifth aspect, an apparatus for transmitting PUSCH includes a processor and a memory, the memory storing a computer program, the processor being configured to invoke and execute the computer program from the memory, such that the device performs any of the methods of the first aspect.

In a sixth aspect, an apparatus for receiving PUSCH comprises a processor and a memory, the memory storing a computer program, the processor being configured to retrieve and execute the computer program from the memory, such that the device performs any of the methods of the second aspect.

In a seventh aspect, a computer-readable medium is provided, the computer-readable medium storing program code comprising instructions for performing any one of the methods of the first aspect.

In an eighth aspect, a computer readable medium is provided, the computer readable medium storing program code, the program code comprising instructions for performing any of the methods of the second aspect.

In a ninth aspect, there is provided a computer program product, the computer program product comprising: computer program code which, when run by an apparatus for transmitting PUSCH, causes the apparatus to perform any of the methods of the first aspect.

In a tenth aspect, there is provided a computer program product comprising: computer program code which, when run by an apparatus for receiving PUSCH, causes the apparatus to perform any of the methods of the second aspect.

Drawings

Fig. 1 is a schematic diagram of a communication system provided herein;

fig. 2 is a schematic diagram of a time domain resource configuration of a PUSCH provided in the present application;

fig. 3 is a schematic diagram of a time domain resource configuration of an SRS and a PUCCH provided in the present application;

fig. 4 is a schematic diagram of a method for transmitting or receiving a PUSCH provided by the present application;

fig. 5 is a schematic diagram of another method for transmitting or receiving PUSCH provided by the present application;

fig. 6 is a schematic diagram of still another method for transmitting or receiving a PUSCH provided by the present application;

fig. 7 is a schematic diagram of still another method for transmitting or receiving a PUSCH provided by the present application;

fig. 8 is a schematic diagram of still another method for transmitting or receiving a PUSCH provided by the present application;

fig. 9 is a schematic diagram of an apparatus for transmitting PUSCH provided in the present application;

fig. 10 is a schematic diagram of an apparatus for receiving a PUSCH provided in the present application;

fig. 11 is a schematic diagram of an electronic device provided in the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

Referring first to the application scenario of the present application, fig. 1 is a schematic diagram of a communication system suitable for the present application.

Communication system 100 includes network device 110 and terminal device 120. The terminal device 120 communicates with the network device 110 by electromagnetic waves.

In the present application, the terminal device 120 may include various handheld devices, vehicle-mounted devices, or wearable devices with wireless communication capabilities, such as the third generation partnership project (3)^rdgeneration partnership project, 3GPP), a User Equipment (UE), a Mobile Station (MS), and so on.

The network device 110 may be a base station defined by 3GPP, such as a base station (gNB) in the fifth generation (5G) communication system. Network device 110 may also be a relay station, an access point, a vehicle device, a wearable device, and other types of communication devices.

The communication system 100 is only an example, and a communication system to which the present application is applied is not limited thereto.

The 5G communication system introduces a time slot aggregation transmission mode in uplink transmission, that is, different redundancy versions of the same transport block are transmitted in accordance with uplink transmission at the same position in consecutive uplink time slots, and the network device 110 may combine the received multiple redundancy versions to achieve a more efficient decoding result. As shown in fig. 2, the same symbol position of the slot n +2 and the slot n +3 is respectively configured with one PUSCH, and each PUSCH carries a different redundancy version of one transport block, so that the reliability of the PUSCH can be improved.

However, the uplink symbol configured with PUSCH may also be configured to other uplink channels, thereby causing uplink transmission collision.

Fig. 3 shows a schematic diagram of a time domain resource configuration of an SRS and a PUCCH.

SRS is an uplink signal, and is transmitted by terminal device 120, and is used by network device 110 to perform uplink channel measurement. After determining the uplink channel quality according to the SRS, the network device 110 adjusts parameters such as a codebook and a code rate used by the terminal device 120 according to the uplink channel quality, thereby improving transmission efficiency. For example, in the case that the uplink channel quality is higher, the terminal device 120 may transmit PUSCH using a higher code rate, so that more content may be transmitted; in case of poor uplink channel quality, the terminal device 120 may transmit PUSCH using a lower code rate to improve transmission reliability. Typically, the SRS is located several symbols at the end of the slot. The SRS shown in fig. 3 is located in the last symbol of slot n +3, and coincides with a partial time domain resource of the PUSCH.

The PUCCH is an uplink control channel and is used to carry uplink control signaling. The PUCCH shown in fig. 3 is located in the last two symbols of slot n +2, and coincides with partial time domain resources of PUSCH.

In addition to SRS and PUCCH, there are also some other cases where the uplink signal or uplink channel coincides with PUSCH. These situations may cause a failure of PUSCH transmission on the overlapped time domain resource, and further cause a reduction in coverage of PUSCH, which has not been solved in the prior art.

The method for sending or receiving PUSCH provided by the present application is described in detail below by taking terminal device 120 as a UE and network device 110 as a base station as an example. As shown in fig. 4, the method includes:

s410, the UE receives first indication information, wherein the first indication information is used for indicating first transmission resources, and the first transmission resources are used for transmitting PUCCH or SRS.

S420, the UE receives second indication information, wherein the second indication information is used for indicating second transmission resources, and the second transmission resources are used for transmitting PUSCH.

Accordingly, the base station transmits the first indication information and the second indication information to the UE.

The first indication information may be a Medium Access Control (MAC) Control Element (CE), a Downlink Control Information (DCI), or a Radio Resource Control (RRC) message.

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

Similarly, the second indication information may be a MAC CE, DCI, or RRC message, and the second transmission resource may be directly indicated by the second indication information, may be indirectly indicated by the second indication information (i.e., the second indication information triggers the UE to transmit PUSCH on the second transmission resource), or may be configured by the second indication information.

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 and then send the second indication information, may send the second indication information and then send the first indication information, and may send the first indication information and the second indication information at the same time.

The specific forms and the sending and receiving modes of the first indication information and the second indication information are not limited in the present application.

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 time unit may be a symbol, a slot, a subframe, or a radio frame, and the frequency domain unit may be a subcarrier or a frequency band. The time length of the time unit and the bandwidth of the frequency domain unit are not limited by the method.

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

S430, when the first transmission resource and the second transmission resource have the overlapped time domain resource, the PUSCH is sent according to a preset rule.

Accordingly, after sending the first indication information and the second indication information, the network device may perform:

and when the first transmission resource and the second transmission resource have the overlapped time domain resource, receiving the PUSCH according to a preset rule.

The above-mentioned coincidence time domain resource may be one or more symbols, or may be one or more time slots, and the duration of the coincidence time domain resource is not limited in the present application.

The UE may determine that the first transmission resource and the second transmission resource have the overlapped time domain resource before sending the PUSCH, or may determine that the first transmission resource and the second transmission resource have the overlapped time domain resource in the process of sending the PUSCH.

When the first transmission resource and the second transmission resource have the overlapped time domain resource, the terminal device and the network device determine the transmission mode on the overlapped time domain resource based on a set of preset rules, so that the failure of PUSCH transmission on the overlapped time domain resource caused by signal collision can be avoided.

Hereinafter, specific contents of the preset rule will be described in detail.

Preset rule 1: when the first indication information indicates that the first transmission resource is used for transmitting the PUCCH or SRS, the PUSCH is transmitted on the overlapped time domain resource, and the PUCCH or SRS is not transmitted on the overlapped time domain resource.

As shown in fig. 5, a slot n and a partial symbol in a slot n +1 are downlink time domain resources, the base station configures a partial symbol in a slot n +1, a slot n +2, and a slot n +3 for uplink transmission, where n is an integer greater than or equal to 0, the partial symbol in the slot n +1, the slot n +2, and the slot n +3 are used for transmitting a PUSCH, and the last two symbols in the slot n +2 are used for transmitting an SRS or a PUCCH.

In this embodiment, the first transmission resource is the last two symbols in the slot n +2, the second transmission resource is the partial symbol in the slot n +1, the slot n +2, and the slot n +3, and the overlapping time domain resource is the last two symbols in the slot n + 2.

After determining that the first transmission resource and the second transmission resource have the overlapped time domain resource, the UE may transmit the PUSCH in the last two symbols in the slot n +2, and does not transmit the PUCCH or the SRS in the last two symbols in the slot n + 2.

Alternatively, the UE may transmit PUSCH in the last symbol in slot n +2, with another symbol being used for transmitting other uplink signals or not being used for transmitting any uplink signals. That is, the UE transmits PUSCH on the overlapped time domain resource, including: and the UE sends the PUSCH on all the time domain resources of the overlapped time domain resources, or sends the PUSCH on partial time domain resources of the overlapped time domain resources.

For non-overlapping time domain resources in the second transmission resources, the UE may transmit the PUSCH using some or all of the non-overlapping transmission resources. Therefore, the UE transmitting PUSCH according to preset rule 1 may be described as: and the UE sends the PUSCH on part or all of the second transmission resources, wherein the part or all of the second transmission resources comprise part or all of the overlapped time domain resources.

Accordingly, the base station receiving PUSCH according to preset rule 1 may be described as: and the base station receives the PUSCH on part or all of the second transmission resources, wherein the part or all of the second transmission resources comprise part or all of the overlapped time domain resources.

In the above embodiment, the UE transmits the PUSCH on the overlapped time domain resource and abandons transmitting the PUCCH or the SRS, so that the PUSCH can occupy more time domain resources. The base station can perform aggregate decoding on the PUSCHs in a plurality of time domain resources to improve the decoding success rate, and when the UE is far away from the base station, the transmission of the PUSCHs can also be successfully completed, so that the uplink coverage is improved.

Rule 2 is preset: when the first indication information indicates that the first transmission resource is used for transmitting the SRS, the SRS is not transmitted in a first time unit, and the SRS is transmitted in a second time unit; and, transmitting PUSCH in the first time unit and not transmitting PUSCH in the second time unit; the first transmission resource is used for transmitting the SRS, the coincident time domain resource comprises 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 first time unit can be located before the second time unit or after the second time unit; the first time unit and the second time unit may respectively include N symbols, where N is a positive integer greater than or equal to 1.

As shown in fig. 6, a slot n and a partial symbol in a slot n +1 are downlink time domain resources, the base station configures a partial symbol in a slot n +1, a slot n +2, and a slot n +3 for uplink transmission, where n is an integer greater than or equal to 0, the partial symbol in the slot n +1, the slot n +2, and the slot n +3 are used for transmitting a PUSCH, and the last two symbols in the slot n +2 are used for transmitting an SRS or a PUCCH.

In this embodiment, the first transmission resource is the last two symbols in the slot n +2, the second transmission resource is the partial symbol in the slot n +1, the slot n +2, and the slot n +3, and the overlapping time domain resource is the last two symbols in the slot n + 2. In the overlapped time domain resource, a first symbol is a first time unit, and the corresponding frequency domain resource of the first symbol is different from the frequency domain resource of the PUSCH; and the frequency domain resource corresponding to the second symbol, namely the second time unit, is the same as the frequency domain resource of the PUSCH.

After determining that the first transmission resource and the second transmission resource have the overlapped time domain resource, the UE may transmit the PUSCH in the first time unit and not transmit the SRS in the first time unit, and may also transmit the SRS in the second time unit and not transmit the PUSCH in the second time unit; alternatively, the symbol not used for transmitting PUSCH may be more than one symbol.

Optionally, the UE transmits the PUSCH in the first time unit, including: and the UE sends the PUSCH on all time domain resources of the first time unit, or sends the PUSCH on partial time domain resources of the first time unit.

For non-overlapping time domain resources in the second transmission resources, the UE may transmit the PUSCH using some or all of the non-overlapping transmission resources. Therefore, the UE transmitting PUSCH according to preset rule 2 may be described as: and the UE sends the PUSCH on part or all of the second transmission resources, wherein the part or all of the second transmission resources comprise part or all of the first time unit. The UE transmitting the SRS according to the preset rule 2 may be described as: and the UE transmits the SRS on part or all of the first transmission resources, wherein the part or all of the first transmission resources comprise part or all of the second time units.

Accordingly, the base station receiving PUSCH according to preset rule 2 may be described as: and the base station receives the PUSCH on part or all of the second transmission resources, wherein the part or all of the second transmission resources comprise part or all of the first time unit. The base station receiving the SRS according to the preset rule 2 may be described as: and the base station receives the SRS on part or all of the first transmission resources, wherein the part or all of the first transmission resources comprise part or all of the second time unit.

When the UE transmits the SRS and the PUSCH, the transmission power of the SRS may be the same as the transmission power of a partial symbol of the PUSCH, for example, the transmission power of the SRS is the same as the power on the time-frequency resource corresponding to the DMRS of the PUSCH; alternatively, the SRS transmit power and the total power on each symbol of the PUSCH are the same.

In this embodiment, the frequency domain resource corresponding to the second time unit is the same as the frequency domain resource of the PUSCH, and the SRS is transmitted in the second time unit, so that the base station can measure the quality of the frequency domain resource of the PUSCH by using the SRS, which is beneficial for the base station to allocate the high-quality frequency domain resource to the PUSCH, and when the UE is far away from the base station, the transmission of the PUSCH can be successfully completed, thereby improving the uplink coverage.

Preset rule 3: when the first indication information indicates that the first transmission resource is used for transmitting the SRS, the SRS is transmitted in a first time unit, and the SRS is not transmitted in a second time unit; and, not transmitting PUSCH in the first time unit, transmitting PUSCH in the second time unit; the first transmission resource is used for transmitting the SRS, the coincidence time domain resource comprises 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 first time unit can be located before the second time unit or after the second time unit; the first time unit and the second time unit may respectively include N symbols, where N is a positive integer greater than or equal to 1.

As shown in fig. 7, a slot n and a partial symbol in a slot n +1 are downlink time domain resources, the base station configures a partial symbol in a slot n +1, a slot n +2, and a slot n +3 for uplink transmission, where n is an integer greater than or equal to 0, the partial symbol in the slot n +1, the slot n +2, and the slot n +3 are used for transmitting a PUSCH, and the last two symbols in the slot n +2 are used for transmitting an SRS or a PUCCH.

After determining that the first transmission resource and the second transmission resource have the overlapped time domain resource, the UE may transmit the SRS in the first time unit and not transmit the PUSCH in the first time unit, and may also transmit the PUSCH in the second time unit and not transmit the SRS in the second time unit; alternatively, the symbol not used for transmitting PUSCH may be more than one symbol.

Optionally, the UE transmits the PUSCH in the second time unit, including: and the UE sends the PUSCH on the whole time domain resource of the second time unit, or sends the PUSCH on partial time domain resource of the second time unit.

For non-overlapping time domain resources in the second transmission resources, the UE may transmit the PUSCH using some or all of the non-overlapping transmission resources. Therefore, the UE transmitting PUSCH according to preset rule 3 may be described as: and the UE sends the PUSCH on part or all of the second transmission resources, wherein the part or all of the second transmission resources comprise part or all of the second time unit. The UE transmitting the SRS according to the preset rule 2 may be described as: the UE transmits the SRS on part or all of first transmission resources, wherein the part or all of the first transmission resources comprise part or all of the first time unit.

Accordingly, the base station receiving PUSCH according to preset rule 3 may be described as: and the base station receives the PUSCH on part or all of the second transmission resources, wherein the part or all of the second transmission resources comprise part or all of the second time unit. The base station receiving the SRS according to the preset rule 2 may be described as: the base station receives the SRS on part or all of first transmission resources, wherein the part or all of the first transmission resources comprise part or all of the first time unit.

In this embodiment, the frequency domain resource corresponding to the first time unit is different from the frequency domain resource of the PUSCH, and the SRS is transmitted in the first time unit, so that the network device can measure the quality of the frequency domain resource corresponding to the first time unit by using the SRS. If the quality of the frequency domain resource corresponding to the first time unit is higher than that of the frequency domain resource of the PUSCH, the network device may allocate the frequency domain resource corresponding to the first time unit to the PUSCH in the subsequent transmission process of the PUSCH, so that the uplink coverage may be improved.

Rule 4 is preset: when the first indication information indicates that the first transmission resource is used for transmitting the PUCCH or the SRS, the PUCCH or the SRS is transmitted on the overlapped time domain resource, and the PUSCH is not transmitted on the overlapped time domain resource.

As shown in fig. 8, a part of symbols in a slot n and a slot n +1 are downlink time domain resources, the base station configures a part of symbols in the slot n +1, a slot n +2, and a slot n +3 for uplink transmission, where n is an integer greater than or equal to 0, a part of uplink time domain resources are used for transmitting PUSCH, and the last two symbols in the slot n +2 are used for transmitting SRS or PUCCH.

After determining that the first transmission resource and the second transmission resource have the overlapped time domain resource, the UE may transmit the PUCCH or the SRS in the last two symbols in the slot n +2, and does not transmit the PUSCH in the last two symbols in the slot n + 2; alternatively, the symbols not used for transmitting PUSCH may be more than two symbols.

Alternatively, the UE may transmit the PUCCH or SRS in the last symbol in slot n +2, with another symbol being used for transmitting other uplink signals or not being used for transmitting any uplink signals. That is, the UE transmits the PUCCH or the SRS on the overlapping time domain resource, including: and the UE sends the PUCCH or SRS on all the time domain resources of the overlapped time domain resources, or sends the PUCCH or SRS on partial time domain resources of the overlapped time domain resources.

For non-overlapping time domain resources in the second transmission resources, the UE may transmit the PUSCH using some or all of the non-overlapping transmission resources. Therefore, the UE transmitting PUSCH according to preset rule 4 may be described as: and the UE sends the PUSCH on part or all of the second transmission resources, wherein the part or all of the second transmission resources do not comprise the overlapped time domain resources.

Accordingly, the base station receiving PUSCH according to preset rule 4 may be described as: and the base station receives the PUSCH on part or all of the second transmission resources, wherein the part or all of the second transmission resources do not comprise the overlapped time domain resources.

In this embodiment, if the terminal device sends the PUSCH and the PUCCH (or the SRS) in the overlapped time domain resource, the network device may receive an erroneous PUSCH, and when the network device combines and decodes the erroneous PUSCH and the correct PUSCH received in the non-overlapped time domain resource, the decoding success rate of the entire PUSCH may be reduced. Therefore, in the embodiment, the PUSCH is abandoned to be transmitted on the overlapped time domain resource, so that the network device does not need to combine and decode the wrong PUSCH and the correct PUSCH, and the decoding success rate of the whole PUSCH is improved.

In addition, in the embodiment shown in fig. 8, in order to improve the success rate of the combined decoding, the PUSCH generally needs to occupy the same time unit in the same time domain position in a plurality of consecutive slots, for example, the first time unit in the first slot and the third time unit in the second slot. When the first time unit is allocated to the PUCCH and the PUSCH, the first time unit needs to transmit the PUCCH preferentially, and the PUSCH cannot occupy the time unit with the same time domain position in a plurality of consecutive slots, and the terminal device may give up transmitting the PUSCH in the second time unit in a normal case. In this embodiment, the terminal device transmits the PUSCH in the second time unit, and compared with the above general case, the PUSCH can be allocated to more time domain resources, so that the decoding success rate is improved, and thus the uplink coverage is improved.

Optionally, when the overlapped time domain resource is used for transmitting the PUCCH, the DMRS of the PUCCH may be used for demodulating the PUSCH in addition to the PUCCH, so that the decoding success rate of the PUSCH may be improved in this embodiment, thereby improving the uplink coverage.

Examples of the method of transmitting or receiving the PUSCH provided by the present application are described above in detail. It is to be understood that the apparatus for transmitting or receiving PUSCH includes a hardware structure and/or a software module corresponding to each function in order to implement the above functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The present application may perform the division of the functional units for the apparatuses that transmit or receive the PUSCH according to the above method examples, for example, each function may be divided into each functional unit, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the units in the present application is schematic, and is only one division of logic functions, and there may be another division manner in actual implementation.

Fig. 9 shows a schematic structural diagram of an apparatus for transmitting PUSCH provided by the present application.

The apparatus 900 includes a processing unit 910, a transmitting unit 920, and a receiving unit 930, where 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.

The receiving unit 930 is configured to: receiving first indication information, wherein the first indication information is used for indicating a first transmission resource, and the first transmission resource is used for transmitting a PUCCH or SRS; receiving second indication information, wherein the second indication information is used for indicating second transmission resources, and the second transmission resources are used for transmitting PUSCH;

the sending unit 920 is configured to: and when the first transmission resource and the second transmission resource have the overlapped time domain resource, sending the PUSCH according to a preset rule.

The specific manner in which the apparatus 900 performs PUSCH transmission and the resulting beneficial effects can be referred to the related description in the above method embodiments.

Fig. 10 shows a schematic structural diagram of an apparatus for receiving a PUSCH provided by the present application.

The apparatus 1000 includes a processing unit 1010, a transmitting unit 1020, and a receiving unit 1030, wherein the transmitting unit 1020 is capable of performing a transmitting 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.

The sending unit 1020 is configured to: sending first indication information, wherein the first indication information is used for indicating a first transmission resource, and the first transmission resource is used for transmitting a PUCCH or SRS; sending second indication information, wherein the second indication information is used for indicating second transmission resources, and the second transmission resources are used for transmitting PUSCH;

the receiving unit 1030 is configured to: and when the first transmission resource and the second transmission resource have the overlapped time domain resource, receiving the PUSCH according to a preset rule.

Optionally, the first transmission resource is configured to transmit the SRS, the overlapped time domain resource includes a first time unit and a second time unit, a frequency domain resource corresponding to the first time unit is different from a frequency domain resource of the PUSCH, a 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: receiving the SRS in the first time unit and receiving the SRS in the second time unit; and, the PUSCH is received in the first time unit and not received in the second time unit.

Optionally, the first transmission resource is configured to transmit the SRS, the overlapped time domain resource includes a first time unit and a second time unit, a frequency domain resource corresponding to the first time unit is different from a frequency domain resource of the PUSCH, a 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: receiving the SRS in the first time unit, and not receiving the SRS in the second time unit; and, the PUSCH is not received in the first time unit and is received in the second time unit.

The specific manner of receiving PUSCH and the beneficial effects thereof performed by the apparatus 1000 can be seen from the description related to the above method embodiment.

Fig. 11 shows a schematic structural diagram of an electronic device provided in the present application. The electronic device 1100 may be used to implement the methods described in the above method embodiments, and the electronic device 1100 may be a chip or a terminal device or a network device.

The electronic device 1100 includes one or more processors 1101, and the one or more processors 1101 may support the electronic device 1100 to implement the methods in the method embodiments. The processor 1101 may be a general purpose processor or a special purpose processor. For example, the processor 1101 may be a Central Processing Unit (CPU) or a baseband processor. The baseband processor may be used to process communication data (e.g., PUSCH), and the CPU may be used to control the electronic device 1100, execute software programs, and process data of the software programs.

The electronic device 1100 may further comprise a transceiving unit 1105 and an antenna 1106 to enable input (reception) and output (transmission) of signals.

For example, the electronic device 1100 may be a chip, and the transceiving unit 1105 may be an input circuit and/or an output circuit of the chip, or the transceiving unit 1105 may be a communication interface of the chip, and the chip may be a component of a terminal device or a network device.

The electronic device 1100 may comprise one or more memories 1102 in which a program 1104 is stored, the program 1104 being executable by the processor 1101 to generate instructions 1103 that cause the processor 1101 to perform the methods described in the above-described method embodiments in accordance with the instructions 1103. Optionally, the memory 1102 may also have data stored therein. Alternatively, the processor 1101 may also read data stored in the memory 1102, the data may be stored at the same memory address as the program 1104, or the data may be stored at a different memory address from the program 1104.

The processor 1101 and the memory 1102 may be provided separately or integrated together, for example, on a System On Chip (SOC).

It should be understood that the steps of the above-described method embodiments may be performed by logic circuits in the form of hardware or instructions in the form of software in the processor 1101. The processor 1101 may be a CPU, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or other programmable logic device, such as a discrete gate, a transistor logic device, or a discrete hardware component.

The specific manner of executing the method for transmitting or receiving PUSCH by the electronic device 1100 and the resulting beneficial effects can be referred to the relevant description in the above method embodiments.

The present application also provides a computer program product which, when executed by the processor 1101, implements the communication method according to any of the method embodiments of the present application.

The computer program product may be stored in the memory 1102, for example, as a program 1104, and the program 1104 is finally converted into an executable object file capable of being executed by the processor 1101 through preprocessing, compiling, assembling and linking.

The present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a computer, implements the communication method described in any of the method embodiments of the present application. The computer program may be a high-level language program or an executable object program.

Such as memory 1102. Memory 1102 can be either volatile memory or nonvolatile memory, or memory 1102 can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, apparatuses and units described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, the disclosed system, apparatus and method can be implemented in other ways. For example, some features of the method embodiments described above may be omitted, or not performed. The above-described embodiments of the apparatus are merely exemplary, the division of the unit is only one logical function division, and there may be other division ways in actual implementation, and a plurality of units or components may be combined or integrated into another system. In addition, the coupling between the units or the coupling between the components may be direct coupling or indirect coupling, and the coupling includes electrical, mechanical or other connections.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association relationship describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In short, the above description is only a preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for transmitting a physical uplink shared channel, comprising:

receiving first indication information, wherein the first indication information is used for indicating a first transmission resource, and the first transmission resource is used for transmitting a Physical Uplink Control Channel (PUCCH) or a Sounding Reference Signal (SRS);

receiving second indication information, wherein the second indication information is used for indicating second transmission resources, and the second transmission resources are used for transmitting a Physical Uplink Shared Channel (PUSCH);

and when the first transmission resource and the second transmission resource have the overlapped time domain resource, sending the PUSCH according to a preset rule.

2. The method of claim 1, wherein the preset rules comprise:

transmitting the PUSCH on the coincident time domain resource, and not transmitting the PUCCH or the SRS on the coincident time domain resource.

3. The method according to claim 1, wherein the first transmission resource is used for transmitting the SRS, the coincident 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 transmitting the SRS in the first time unit, 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.

4. The method according to claim 1, wherein the first transmission resource is used for transmitting the SRS, the coincident 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:

transmitting the SRS in the first time unit, 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.

5. The method of claim 1, wherein the preset rules comprise:

transmitting the PUCCH or SRS over the coincident time domain resources and not transmitting the PUSCH over the coincident time domain resources.

6. The method of claim 5, wherein the first transmission resource comprises a first time unit, wherein the second transmission resource comprises a third time unit, wherein the first time unit belongs to the overlapping time domain resource, wherein the third time unit does not belong to the overlapping time domain resource, wherein a position of the first time unit in a first time slot is the same as a position of the third time unit in a second time slot, and wherein the first time slot is adjacent to the second time slot.

7. The method according to claim 5 or 6, wherein the coincident time domain resources are used for transmitting the PUCCH, and wherein a demodulation reference signal (DMRS) of the PUCCH is used for demodulating the PUCCH and PUSCH.

8. A method for receiving a physical uplink shared channel, comprising:

sending first indication information, wherein the first indication information is used for indicating first transmission resources, and the first transmission resources are used for transmitting a Physical Uplink Control Channel (PUCCH) or a Sounding Reference Signal (SRS);

sending second indication information, wherein the second indication information is used for indicating second transmission resources, and the second transmission resources are used for transmitting a Physical Uplink Shared Channel (PUSCH);

9. The method of claim 8, wherein the preset rules comprise:

receiving the PUSCH on the coincident time domain resource and not receiving the PUCCH or the SRS on the coincident time domain resource.

10. The method of claim 8, wherein the first transmission resource is used for transmitting the SRS, wherein the coincident time domain resource comprises a first time unit and a second time unit, wherein the frequency domain resource corresponding to the first time unit is different from the frequency domain resource corresponding to the PUSCH, and wherein the frequency domain resource corresponding to the second time unit is the same as the frequency domain resource corresponding to the PUSCH, and wherein the preset rule comprises:

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.

11. The method of claim 8, wherein the first transmission resource is used for transmitting the SRS, wherein the coincident time domain resource comprises a first time unit and a second time unit, wherein the frequency domain resource corresponding to the first time unit is different from the frequency domain resource corresponding to the PUSCH, and wherein the frequency domain resource corresponding to the second time unit is the same as the frequency domain resource corresponding to the PUSCH, and wherein the preset rule comprises:

receiving the SRS in the first time unit, 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.

12. The method of claim 8, wherein the preset rules comprise:

receiving the PUCCH or SRS over the coincident time domain resources and not receiving the PUSCH over the coincident time domain resources.

13. The method of claim 12, wherein the first transmission resource comprises a first time unit, wherein the second transmission resource comprises a third time unit, wherein the first time unit belongs to the overlapping time domain resource, wherein the third time unit does not belong to the overlapping time domain resource, wherein a position of the first time unit in a first time slot is the same as a position of the third time unit in a second time slot, and wherein the first time slot is adjacent to the second time slot.

14. The method according to claim 12 or 13, wherein the coincident time domain resources are used for transmitting the PUCCH, and wherein a DMRS (demodulation reference signal) of the PUCCH is used for demodulating the PUCCH and the PUSCH.

15. An apparatus for transmitting a physical uplink shared channel, comprising a processor and a memory, the processor and the memory being coupled for storing a computer program which, when executed by the processor, causes the apparatus to perform the method of any of claims 1 to 7.

16. An apparatus for receiving a physical uplink shared channel, comprising a processor and a memory, the processor and the memory being coupled for storing a computer program which, when executed by the processor, causes the apparatus to perform the method of any of claims 8 to 14.

17. 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 carry out the method of any one of claims 1 to 14.

18. A chip comprising a processor that, when executing instructions, performs the method of any one of claims 1 to 14.