CN111756661B

CN111756661B - Communication method, device, system and storage medium

Info

Publication number: CN111756661B
Application number: CN201910253509.XA
Authority: CN
Inventors: 许子杰; 杨育波; 窦圣跃
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2021-10-22
Anticipated expiration: 2039-03-29
Also published as: CN111756661A; WO2020200115A1

Abstract

The embodiment of the application provides a communication method, a device, a system and a storage medium, wherein the method comprises the following steps: the terminal equipment receives first downlink control information from the network equipment, wherein the first downlink control information comprises first SRS information; receiving second downlink control information from the network device, wherein the second downlink control information comprises second SRS information; and if the first SRS information and the second SRS information are different, the terminal equipment does not transmit or delay to transmit the SRS which conflicts with the uplink shared physical channel and/or the uplink control physical channel, and the SRS which conflicts with the uplink shared physical channel and/or the uplink shared physical channel is the first SRS corresponding to the first SRS information or the second SRS corresponding to the second SRS information. Different SRS information is configured in the downlink control information, so that the terminal delays SRS transmission, the SRS transmission opportunity is increased, and the network equipment acquires more SRS to accurately estimate the uplink channel quality.

Description

Communication method, device, system and storage medium

Technical Field

Embodiments of the present disclosure relate to communications technologies, and in particular, to a communication method, apparatus, system, and storage medium.

Background

In a Long Term Evolution (LTE) communication system, a network device estimates uplink channel quality of different frequency bands by using Sounding Reference Signals (SRS) reported by a terminal. In this way, the network device may configure a subframe (referred to as an uplink subframe for short) for uplink transmission for the terminal in the frequency band with good quality, so as to ensure the performance of the uplink.

In the prior art, in order to ensure that symbols used by a terminal for transmitting an SRS and transmitting an uplink shared physical channel or an uplink control physical channel on the same uplink subframe do not overlap, a network device configures the terminal to transmit the SRS on the last symbol of the uplink subframe and transmit the uplink shared physical channel or the uplink control physical channel on other symbols of the uplink subframe. At present, in order to acquire more SRSs to accurately estimate uplink channel quality, a concept of an extended SRS (extended SRS) signal is introduced. In this scenario, the network device may configure the terminal to transmit the extended SRS on other symbols of the uplink subframe, so as to increase the opportunity for the terminal to transmit the SRS. However, since the extended SRS may be configured to be transmitted on a non-last symbol of an uplink subframe, a symbol used by the terminal to transmit the extended SRS and a symbol used to transmit an uplink shared physical channel or an uplink control physical channel may overlap in the same uplink subframe.

Therefore, how to process the overlapped uplink data and the enhanced SRS in the same uplink subframe is an urgent problem to be solved.

Disclosure of Invention

Embodiments of the present application provide a communication method, apparatus, system, and storage medium, which increase the opportunity for a terminal to send an SRS, so that a network device obtains more SRS to accurately estimate the uplink channel quality.

In a first aspect, an embodiment of the present application provides a communication method, which may be applied to a terminal device and may also be applied to a chip in the terminal device. The method is described below by taking an application to a terminal device as an example, in the method, the terminal device receives first downlink control information from a network device, and the first downlink control information includes first SRS information; the terminal equipment receives second downlink control information from the network equipment, wherein the second downlink control information comprises second SRS information; if the first SRS information is different from the second SRS information, the terminal device does not transmit or delay transmission of the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel, where the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel is the first SRS corresponding to the first SRS information or the second SRS corresponding to the second SRS information.

It can be understood that, in the above method, the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel refers to: the time unit for transmitting the SRS collides with the time unit for transmitting the uplink data in the uplink shared physical channel and/or the uplink control signal in the uplink control physical channel. The time unit may be at least one subframe, or at least one slot or at least one symbol. The time cell collision may be at least one symbol collision in a time cell.

In the above method, different SRS information is set in the first downlink control information and the second downlink control information, that is, the first SRS information is different from the second SRS information. The first SRS information and the second SRS information are different from each other, which does not mean that the terminal device does not transmit the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel, but instructs the terminal device to decide whether to not transmit or delay transmission of the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel. And then the opportunity that the terminal equipment sends the SRS is increased, so that the network equipment can acquire more SRSs to accurately estimate the quality of the uplink channel.

Optionally, the first SRS information is a first field, the second SRS information is a second field, and the first SRS information and the second SRS information are different from each other in that: a field value of the first field is different from a field value of the second field.

In one possible design, the delaying transmission of the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel includes: and according to the delay parameter, the terminal equipment delays sending the SRS conflicted with the uplink shared physical channel and/or the uplink control physical channel.

Optionally, the delay parameter is predefined or configured by the network device to the terminal device.

In the configuration of the delay parameter for the terminal device by the network device, one possible implementation manner is as follows: the RRC signaling is configured with a delay parameter. And the terminal equipment delays to send the SRS conflicted with the uplink shared physical channel and/or the uplink control physical channel according to the delay parameters configured in the RRC signaling.

Another possible implementation is: the delay parameters are configured in the downlink control information. Optionally, the terminal device determines later downlink control information in the first downlink control information and the second downlink control information, and delays sending the SRS that conflicts with the uplink shared physical channel and/or the uplink control physical channel according to a delay parameter configured in the later downlink control information.

Yet another possible implementation is: the SRS parameter set included in the RRC signaling is configured with a delay parameter. Optionally, the terminal device determines later SRS information in the first SRS information and the second SRS information according to the first SRS information and the second SRS information, obtains a delay parameter corresponding to the later SRS information from an SRS parameter set, and delays sending an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel according to the delay parameter.

The first SRS information is further configured to indicate the delay parameter, and the first downlink control information is later than the second downlink control information in a time domain; or, the second SRS information is further configured to indicate the delay parameter, and the second downlink control information is later than the first downlink control information in a time domain.

Optionally, the delaying sending the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel by using a delay time unit as the delay parameter includes: determining a first time unit for transmitting an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel; and determining a second time unit according to the first time unit and the delay time unit, and transmitting the SRS collided with the uplink shared physical channel and/or the uplink control physical channel by the terminal equipment in the second time unit.

In one possible design, if the delay parameter is not predefined and the network device does not configure the delay parameter for the terminal device, the terminal device does not send an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel.

In one possible design, if the first SRS information is the same as the second SRS information, the terminal device does not transmit an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel.

In the method, the terminal device delays sending the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel according to the delay parameter by predefining the delay parameter or configuring the delay parameter for the terminal device by the network device, so that the first SRS information is different from the second SRS information, and the purpose of increasing the opportunity of sending the SRS by the terminal device is achieved.

In one possible design, the first SRS information is used to instruct the terminal device not to transmit the first SRS; or the like, or, alternatively,

the first SRS information is used to indicate a first SRS parameter set and/or a second SRS parameter set, where the first SRS parameter set is: a second set of SRS parameters transmitted on a non-last symbol of a time unit, the second set of SRS parameters being: a parameter set of the SRS transmitted on a last symbol of the time unit; or the like, or, alternatively,

the first SRS information is used to refer to a third SRS parameter set, where the third SRS parameter set is: parameter sets for transmitted SRSs on any one symbol of a time unit.

Alternatively, the first and second electrodes may be,

the second SRS information is used for indicating the terminal equipment not to send the first SRS; or the like, or, alternatively,

the second SRS information is used to indicate a first SRS parameter set and/or a second SRS parameter set, where the first SRS parameter set is: a second set of SRS parameters transmitted on a non-last symbol of a time unit, the second set of SRS parameters being: a parameter set of the SRS transmitted on a last symbol of the time unit; or the like, or, alternatively,

the second SRS information is used to refer to a third SRS parameter set, where the third SRS parameter set is: parameter sets for transmitted SRSs on any one symbol of a time unit.

In this design, the terminal may be instructed to transmit or not to transmit the first SRS corresponding to the first SRS information and the second SRS corresponding to the second SRS information through the first SRS information and the second SRS information. And when the terminal device is instructed to transmit the SRS information, the terminal device may obtain, in the SRS parameter set, the SRS parameter corresponding to the first SRS information and/or the second SRS information. And a set of parameters for different types of SRS may be included in the design, where different types of SRS refer to SRS transmitted on non-last symbol of a time unit, SRS transmitted on last symbol of a time unit, or SRS transmitted on any one symbol of a time unit.

In one possible design, a terminal device receives a first parameter, a second parameter, and a third parameter from a network device, where the first parameter and the second parameter are both used to indicate an SRS antenna selection mode of the terminal device, and the third parameter is used to indicate at least two SRS parameter sets;

and the terminal equipment determines an SRS antenna selection mode according to the first parameter, the second parameter and the third parameter, and sends an SRS according to the SRS antenna selection mode.

Optionally, the terminal device determines an SRS antenna selection mode according to the following formula one:

wherein, T_SRSIs the period, T, in which the terminal device transmits the SRS_offsetIs SRS subframe level offset, T_{offset_max}Is the sub-frame level offset T_offsetMaximum value of n_sIs the slot number, n_fSubframe (subframe) number, Nsp a special subframe number, N_SrsConfigNumber of terminal equipment SRS configurations, n_SrsConfig＝{0,…N_SrsConfig-1 is the subscript on the number of SRS configurations, n_SrsConfigThe ISRS increases in order as 3GPP TS36.213V15.5.0 section 8.2.

Optionally, the first parameter, the second parameter, and the third parameter are configured to the terminal device by the base station device through a high-level signaling.

Optionally, the SRS antenna selection mode includes: an identification of a time unit and antenna port for transmitting the SRS.

Optionally, the first parameter is used to enable the terminal device to perform first SRS antenna selection, the second parameter is used to enable the terminal device to perform second SRS antenna selection, and a selection time corresponding to the first SRS antenna selection is smaller than a time threshold.

Optionally, the first parameter is to enable the terminal device to perform fast SRS antenna selection, and the second parameter is to enable the terminal device to perform SRS antenna selection.

Optionally, if the terminal does not receive at least one of the first parameter, the second parameter, and the third parameter, determining an SRS antenna selection mode by using a second formula as follows.

Wherein, T_SRSIs the period, T, in which the terminal device transmits the SRS_offsetIs SRS subframe level offset, T_{offset_max}Is the sub-frame level offset T_offsetMaximum value of n_sIs the slot number, n_fSubframe (subframe) number, Nsp is the special subframe number.

In the design, the network device enables the terminal device to select the SRS antenna through parameter configuration, so that the terminal device determines an SRS antenna selection mode suitable for the terminal device according to the parameters configured by the network device, thereby improving the performance of the terminal for transmitting the SRS.

The communication method of the SRS antenna selection mode in this design may be performed as an independent communication method without depending on the communication method in the other possible designs of the first aspect described above. The communication method of the SRS antenna selection mode in this design may specifically refer to the related description in the first aspect above.

In a second aspect, an embodiment of the present application provides a communication method, which may be applied to a network device and may also be applied to a chip in the network device. The method is described below by taking an application to a network device as an example, in the method, the network device sends first downlink control information to a terminal device, where the first downlink control information includes first SRS information; the network equipment sends second downlink control information to the terminal equipment, wherein the second downlink control information comprises second SRS information; if the first SRS information is different from the second SRS information, the network device does not receive or delay receiving the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel, where the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel is the SRS corresponding to the first SRS information or the SRS corresponding to the second SRS information.

In one possible design, the delaying receiving the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel includes: and according to the delay parameter, the network equipment delays receiving the SRS conflicted with the uplink shared physical channel and/or the uplink control physical channel.

In the configuration of the delay parameter for the terminal device by the network device, one possible implementation manner is as follows: the RRC signaling is configured with a delay parameter. And the network equipment delays and receives the SRS conflicted with the uplink shared physical channel and/or the uplink control physical channel according to the delay parameter configured in the RRC signaling.

Another possible implementation is: the delay parameters are configured in the downlink control information. Optionally, the network device determines later downlink control information in the first downlink control information and the second downlink control information, and delays receiving the SRS that conflicts with the uplink shared physical channel and/or the uplink control physical channel according to a delay parameter configured in the later downlink control information.

Yet another possible implementation is: the SRS parameter set included in the RRC signaling is configured with a delay parameter. Optionally, the network device determines, according to the first SRS information and the second SRS information, later SRS information in the first SRS information and the second SRS information, obtains a delay parameter corresponding to the later SRS information from an SRS parameter set, and delays receiving, according to the delay parameter, an SRS that collides with the uplink shared physical channel and/or the uplink control physical channel.

Optionally, the delaying receiving the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel by using the delay parameter as a delay time unit includes: determining a first time unit for receiving an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel; and determining a second time unit according to the first time unit and the delay time unit, and receiving the SRS conflicting with the uplink shared physical channel and/or the uplink control physical channel in the second time unit.

In one possible design, if the delay parameter is not predefined and the network device does not configure the delay parameter for the terminal device, the network device does not receive the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel.

In one possible design, if the first SRS information and the second SRS information are the same, the network device does not receive the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel.

the first SRS information is used to refer to a third SRS parameter set, where the third SRS parameter set is: parameter sets for transmitted SRSs on any one symbol of a time unit. Alternatively, the first and second electrodes may be,

Optionally, the network device sends the first parameter, the second parameter, and the third parameter to the terminal device, so that the terminal device determines an SRS antenna selection mode according to the first parameter, the second parameter, and the third parameter, and sends the SRS according to the SRS antenna selection mode.

Optionally, the determining, by the terminal device, the SRS antenna selection mode may be according to the following formula one:

wherein, T_SRSIs the period, T, in which the terminal device transmits the SRS_offsetIs SRS subframe level offset, T_{offset_max}Is the sub-frame level offset T_offsetMaximum value of n_sIs the slot number, n_fSubframe (subframe) number, Nsp a special subframe number, N_SrsConfigNumber of terminal equipment SRS configurations, n_SrsConfig＝{0,…N_SrsConfig-1 is the subscript on the number of SRS configurations, n_SrsConfigISRS press as 3GPP TS36.213V15.5.0 section 8.2Increasing in order.

Optionally, if the network device does not send at least one of the first parameter, the second parameter, and the third parameter to the terminal device, the terminal device may determine the SRS antenna selection mode according to the following formula two:

The communication method of the SRS antenna selection mode in this design may be performed as an independent communication method without depending on the communication method in the other possible designs of the second aspect described above. The communication method of the SRS antenna selection mode in this design may specifically refer to the related description in the second aspect above.

The beneficial effects of the method provided by the second aspect can be found in the beneficial effects of the first aspect, which are not described herein again.

In a third aspect, an embodiment of the present application provides a communication apparatus, including: a transceiver and a processor. Wherein the content of the first and second substances,

a transceiver configured to receive first downlink control information from a network device, the first downlink control information including first SRS information.

The transceiver is further configured to receive second downlink control information from the network device, where the second downlink control information includes second SRS information.

A processor, configured to not transmit or delay transmission of an SRS that collides with an uplink shared physical channel and/or an uplink control physical channel if the first SRS information is different from the second SRS information, where the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel is a first SRS corresponding to the first SRS information or a second SRS corresponding to the second SRS information.

Optionally, the processor is specifically configured to delay sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel according to the delay parameter.

Optionally, the first SRS information is further configured to indicate the delay parameter, and the first downlink control information is later than the second downlink control information in a time domain; or, the second SRS information is further configured to indicate the delay parameter, and the second downlink control information is later than the first downlink control information in a time domain.

Optionally, the processor is specifically configured to not send the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel if the delay parameter is not predefined and the network device does not configure the delay parameter for the terminal device.

Optionally, the processor is further configured to not send the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel if the first SRS information is the same as the second SRS information.

Optionally, the delay parameter is a delay time unit.

A processor, specifically configured to determine a first time unit for transmitting an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel; and determining a second time unit according to the first time unit and the delay time unit, and transmitting the SRS collided with the uplink shared physical channel and/or the uplink control physical channel by the terminal equipment in the second time unit.

Optionally, the first SRS information is used to instruct the terminal device to transmit the first SRS, where the first SRS is an SRS transmitted in a first time unit, and the second downlink control information is used to instruct the terminal device to transmit the uplink shared physical channel and/or the uplink control physical channel in the first time unit; or, the first downlink control information is used to instruct the terminal device to transmit an uplink shared physical channel and/or an uplink control physical channel in a first time unit, the second SRS information is used to instruct the terminal device to transmit the second SRS, and the second SRS is an SRS transmitted in the first time unit.

Optionally, the first SRS information is used to instruct the terminal device not to send the first SRS; or the like, or, alternatively,

Optionally, the transceiver is further configured to receive a first parameter sent by a network device, where the first parameter is used to indicate an SRS antenna selection mode of the terminal device.

A processor configured to receive a transmission of an SRS according to an SRS antenna selection mode.

Optionally, the first parameter may be configured to the terminal device by the network device through a high-layer signaling.

The communication device provided in the embodiment of the present application has the beneficial effects that the beneficial effects brought by the first aspect are referred to, and details are not repeated herein.

In a fourth aspect, an embodiment of the present application provides a communication apparatus, including: a transceiver and a processor. Wherein the content of the first and second substances,

the transceiver is configured to send first downlink control information to a terminal device, where the first downlink control information includes first SRS information.

The transceiver is further configured to send second downlink control information to the terminal device, where the second downlink control information includes second SRS information.

And a processor, configured to not receive or delay receiving an SRS that collides with an uplink shared physical channel and/or an uplink control physical channel if the first SRS information is different from the second SRS information, where the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel is an SRS corresponding to the first SRS information or an SRS corresponding to the second SRS information.

Optionally, the processor is specifically configured to delay receiving, by the network device, the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel according to a delay parameter.

Optionally, the processor is further configured to not receive the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel if the delay parameter is not predefined and the network device does not configure the delay parameter for the terminal device.

Optionally, the processor is further configured to not receive an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel if the first SRS information is the same as the second SRS information.

Optionally, the processor is specifically configured to determine a first time unit for receiving an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel; and determining a second time unit according to the first time unit and the delay time unit, and receiving, by the network equipment, the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel in the second time unit.

Optionally, the first SRS information is used to instruct the terminal device to transmit the first SRS, where the first SRS is an SRS transmitted in a first time unit, and the second downlink control information is used to instruct the terminal device to transmit the uplink shared physical channel and/or the uplink control physical channel in the first time unit; or the like, or, alternatively,

the first downlink control information is used to instruct the terminal device to transmit an uplink shared physical channel and/or an uplink control physical channel in a first time unit, the second SRS information is used to instruct the terminal device to transmit the second SRS, and the second SRS is the SRS transmitted in the first time unit.

the first SRS information is used to indicate a first parameter set and/or a second parameter set, where the first parameter set is: a parameter set for an SRS transmitted on a non-last symbol of a time unit, the second parameter set being: a parameter set of the SRS transmitted on a last symbol of the time unit; or the like, or, alternatively,

the first SRS information is used to refer to a third parameter set, where the third parameter set is: parameter set of SRS transmitted on any one symbol of inter-cell.

Optionally, the transceiver is further configured to send a first parameter to a terminal device, where the first parameter is used to indicate an SRS antenna selection mode of the terminal device.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, including: a processor, a memory, a transceiver; the transceiver is coupled to the processor, and the processor controls transceiving action of the transceiver;

wherein the memory is to store computer executable program code, the program code comprising instructions; the instructions, when executed by the processor, cause the communication device to perform a communication method as provided by the first aspect or by various possible designs of the first aspect.

In a sixth aspect, an embodiment of the present application provides a communication apparatus, including: a processor, a memory, a transceiver; the transceiver is coupled to the processor, and the processor controls transceiving action of the transceiver;

wherein the memory is to store computer executable program code, the program code comprising instructions; the instructions, when executed by the processor, cause the communication device to perform a communication method as provided by the second aspect or by various possible designs of the second aspect.

In a seventh aspect, an embodiment of the present application provides a communication device, which includes a unit, a module, or a circuit configured to perform the method provided in the above first aspect or each possible design of the first aspect. The communication device may be a terminal device, or may be a module applied to the terminal device, for example, a chip applied to the terminal device.

In an eighth aspect, embodiments of the present application provide a communication device, which includes a unit, a module, or a circuit for performing the method provided in the second aspect or each possible design of the second aspect. The communication device may be a network device, or may be a module applied to the network device, for example, a chip applied to the network device.

In a ninth aspect, embodiments of the present application provide a communication device (e.g., a chip) having a computer program stored thereon, where the computer program is executed by the communication device to implement the method as provided by the first aspect or each possible design of the first aspect.

In a tenth aspect, embodiments of the present application provide a communication device (e.g., a chip) having a computer program stored thereon, where the computer program is executed by the communication device to implement the method as provided by the second aspect or each possible design of the second aspect.

In an eleventh aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect or the various possible designs of the first aspect.

In a twelfth aspect, embodiments of the present application provide a computer program product comprising instructions that, when run on a computer, cause the computer to perform the method of the second aspect or the various possible designs of the second aspect.

In a thirteenth aspect, embodiments of the present application provide a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the above-mentioned first aspect or the methods in the various possible designs of the first aspect.

In a fourteenth aspect, embodiments of the present application provide a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the second aspect or the various possible designs of the second aspect.

In a fifteenth aspect, an embodiment of the present application provides a communication system including the communication apparatus as in the third aspect and the communication apparatus as in the fourth aspect.

In the communication method, the apparatus, the system, and the storage medium provided in the embodiments of the present application, when the terminal determines that the PUSCH and the SRS collide with each other according to the first downlink control information and the second downlink control information, the network device may configure different SRS information in the first downlink control information and the second downlink control information, that is, the first SRS information is different from the second SRS information. The first SRS information and the second SRS information are different from each other, which does not mean that the terminal does not transmit the SRS colliding with the PUSCH, but indicates whether the terminal makes a decision to not transmit or delay transmission of the SRS colliding with the PUSCH. The communication method in the embodiment of the application increases the opportunity that the terminal sends the SRS conflicting with the PUSCH, so that the network equipment can acquire more SRSs to accurately estimate the uplink channel quality.

Drawings

Fig. 1 is a schematic architecture diagram of a mobile communication system according to an embodiment of the present application;

FIG. 2 is a diagram illustrating an SRS configuration according to the prior art;

FIG. 3 is a diagram illustrating another SRS configuration in the prior art;

fig. 4 is a communication method according to an embodiment of the present application;

fig. 5 is a diagram illustrating SRS and PUSCH collision;

fig. 6 is a schematic flowchart of a process that a terminal device does not transmit or delays to transmit an SRS colliding with an uplink shared physical channel and/or an uplink control physical channel according to an embodiment of the present application;

fig. 7 is a flowchart illustrating another communication method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a communication system according to an embodiment of the present application.

Detailed Description

Fig. 1 is a schematic architecture diagram of a mobile communication system according to an embodiment of the present application. As shown in fig. 1, the mobile communication system may include a network device and a terminal device. The terminal equipment is connected with the network equipment in a wireless mode. Fig. 1 is a schematic diagram, and the mobile communication system may further include other network devices, such as a wireless relay device and a wireless backhaul device, which are not shown in fig. 1.

The network device is an access device that the terminal device accesses to the mobile communication system in a wireless manner, and may be a network side in a base station NodeB, an evolved node b, a 5G mobile communication system or a new generation wireless (new radio, NR) communication system, a network side in a future mobile communication system, an access node in a WiFi system, and the like.

The Terminal device may also be referred to as a Terminal, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like. The terminal device may be a mobile phone (mobile phone), a tablet (pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like.

The network equipment and the terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons and satellite vehicles. The application scenarios of the network device and the terminal device are not limited in the embodiments of the present application.

The network device and the terminal device can perform uplink data transmission through a wireless channel. Since a wireless channel has a frequency selective fading (frequency selective fading) characteristic, that is, fading characteristics are different in different frequency bands, the transmission performance of an uplink for transmitting uplink data is seriously affected by the characteristic of the wireless channel. To overcome this problem, the network device in the prior art uses a Sounding Reference Signal (SRS) transmitted by the terminal device to estimate uplink channel quality of different frequency bands.

The following takes SRS (legacy SRS) in existing LTE protocols Rel-8 to Rel-15 as an example, and describes a trigger type for triggering a terminal device to transmit an SRS. The trigger types comprise two types, namely trigger type 0 and trigger type 1.

Wherein, trigger type 0: the radio resource control RRC high-level signaling sent to the terminal equipment by the network equipment triggers the terminal equipment to send the SRS, and the trigger type 0 corresponds to the terminal equipment to periodically send the SRS. The configuration parameters of time domain, frequency domain, code domain and the like of the SRS sent by the terminal equipment are pre-configured by RRC high-level signaling.

trigger type 1: downlink Control Information (DCI) sent to the terminal device by the network device triggers the terminal device to send the SRS, trigger type 1 corresponds to the SRS that the terminal device sends aperiodically, and one DCI can only trigger the terminal device to send the SRS once. The DCI is used to schedule uplink transmission and downlink transmission, each DCI is configured with a field SRS request field for indicating an SRS trigger state, and the SRS trigger state may include a trigger state and a non-trigger state. Configuration parameters such as time domain, frequency domain, code domain and the like for the terminal equipment to transmit the SRS aperiodically are also pre-configured by RRC high-level signaling, wherein the RRC high-level signaling comprises an SRS parameter set, and the SRS parameter set comprises SRS configuration parameters corresponding to different fields. After receiving the DCI sent by the network device, the terminal device may obtain a field SRS request field in the DCI, determine a corresponding SRS configuration parameter in the SRS parameter set according to the field SRS request field, and then send the SRS according to the SRS configuration parameter.

For example, when the DCI is DCI format 4/4a/4B/7-0B, a field for indicating the SRS trigger state occupies 2 bits in the DCI, and the field value corresponding to the field may be any one of 00, 01, 10, or 11. Wherein 00 indicates that the SRS trigger state is a non-trigger state, that is, the terminal device is instructed not to transmit the SRS; 01. 10 or 11 indicates that the SRS trigger state is a trigger state, that is, the terminal device is instructed to transmit the SRS. When the terminal device determines that the field in the DCI indicates SRS transmission, the time domain, the frequency domain, the code domain, and the like for SRS transmission may be determined according to the set of SRS parameters pre-configured in the RRC high layer signaling. The SRS parameter set includes configuration parameters corresponding to different fields, and the configuration parameters corresponding to each field may be different. Table one is an example of the SRS parameter set configured in RRC high layer signaling.

Watch 1

Field value	Description of the invention
		00	Non-triggered SRS
01	First set of SRS parameters configured by RRC higher layer signaling
		10	Second set of SRS parameters configured by RRC higher layer signaling
11	Third set of SRS parameters configured by RRC higher layer signaling

For example, when the DCI is DCI formats 0/1a/2B/2C/2D, a field for indicating the SRS trigger state occupies 1 bit in the DCI, and a field value corresponding to the field may be any one of 0 or 1. Wherein, 0 indicates that the SRS triggering state is a non-triggering state, namely, the terminal equipment is instructed not to send the SRS; 1 indicates that the SRS trigger state is a trigger state, that is, the terminal device is instructed to transmit the SRS. When the terminal device determines that the field in the DCI indicates SRS transmission, the time domain, the frequency domain, the code domain, and the like for SRS transmission may be determined according to the set of SRS parameters pre-configured in the RRC high layer signaling. Table two is another example of the SRS parameter set configured in RRC high layer signaling.

Watch two

Field value	Description of the invention
		0	Non-triggered SRS
1	SRS parameters configured by RRC higher layer signaling

The DCI is used to schedule uplink and downlink transmissions and includes a field for indicating an SRS trigger state. In a communication system, a network device typically schedules uplink transmissions in bursts; and under the background that the number of terminal devices is increased sharply, the network device will often configure the terminal devices to perform aperiodic SRS transmission. In this way, the terminal device may receive a plurality of DCIs transmitted from the network device before transmitting uplink and downlink data or SRS on the subframe.

In the DCI received by the terminal device, if a field in the DCI indicates that the SRS trigger state is a trigger state, the terminal device may determine, according to the SRS parameter set corresponding to the field in the RRC signaling, a subframe in which the SRS is transmitted and a symbol used for transmitting the SRS in the subframe.

Fig. 2 is a schematic diagram of an SRS configuration in the prior art. As shown in fig. 2, in order to avoid overlapping of a transmission symbol of an Uplink Shared Channel (PUSCH) or an Uplink Control Physical Channel (PUCCH) and a symbol for transmitting a legacy SRS in the prior art, a network device generally configures a last symbol of a subframe to transmit the legacy SRS. In the following, the PUSCH and SRS collision is taken as an example, and as shown in fig. 2, a shaded portion is a symbol for transmitting the conventional SRS, and a non-shaded portion is a symbol for transmitting the PUSCH.

Fig. 3 is a schematic diagram of another SRS configuration in the prior art. In the prior art, in order to acquire more SRSs and accurately estimate the quality of an uplink channel, an extended SRS is introduced into an LTE protocol Rel-16. The extended SRS may be configured on one or more symbols other than the last symbol of the subframe. As indicated by the black part symbol in fig. 3. When PUSCH transmission and SRS transmission are performed in the same symbol of the same subframe, a symbol in a black portion overlaps a symbol in a non-shaded portion, and when uplink transmission is performed in the subframe, transmission of PUSCH and extended SRS in the overlapped symbol collide with each other.

In order to ensure the correct SRS transmission in the prior art, the fields used for indicating the SRS trigger state in the DCI received before the subframe and triggering the SRS transmission on the subframe must be the same. When the transmission of the PUSCH and the transmission of the extended SRS collide with each other, in order to ensure accurate transmission of the PUSCH, the extended SRS colliding with the transmission of the PUSCH is directly discarded in the prior art, so that the purpose of enhancing the SRS capacity and coverage cannot be achieved.

Fig. 3 shows that the symbols for transmitting the extended SRS and the symbols for transmitting the PUSCH all overlap, and it is understood that at least one of the symbols for transmitting the extended SRS and the symbols for transmitting the PUSCH overlaps, which may also cause the transmission of the PUSCH and the transmission of the extended SRS to collide. The extended SRS is directly discarded as is done in the prior art. Shown in fig. 3 is a configuration of both the legacy SRS and the extended SRS on one subframe. It may be understood that only the legacy SRS or the extended SRS may also be configured on the subframe.

In order to solve the above problem, an embodiment of the present application provides a communication method. When transmission of the PUSCH and/or PUCCH and transmission of the SRS collide, different SRS information is configured in the two DCIs by the network device. The terminal equipment delays sending or not sending the SRS according to the different SRS information in the two DCIs, so that the opportunity of sending the SRS by the terminal equipment is increased, and the aim of accurately estimating the uplink channel quality by acquiring more SRSs by the network equipment is fulfilled.

The communication method in the embodiment of the application can be applied to a scene that the transmission of the extended SRS conflicts with the transmission of the PUSCH and/or PUCCH, can also be applied to a scene that the transmission of the traditional SRS conflicts with the transmission of the PUSCH and/or PUCCH, and can also be applied to a scene that the transmission of the extended SRS and the traditional SRS conflict with the transmission of the PUSCH and/or PUCCH. It can be understood that the communication method in the embodiment of the present application may also be used in a scenario where transmission of other types of SRS collides with transmission of PUSCH and/or PUCCH.

The communication method provided by the present application is described below with reference to fig. 4 from the perspective of interaction between a network device and a terminal device. Fig. 4 is a communication method according to an embodiment of the present disclosure. As shown in fig. 4, the communication method includes:

s101, a network device sends first downlink control information to a terminal device, wherein the first downlink control information comprises first SRS information.

Correspondingly, the terminal equipment receives the first downlink control information from the network equipment.

S102, the network device sends second downlink control information to the terminal device, wherein the second downlink control information comprises second SRS information.

Correspondingly, the terminal equipment receives second downlink control information from the network equipment.

S103, if the first SRS information is different from the second SRS information, the terminal device does not transmit or delay transmission of the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel, and the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel is the first SRS or the second SRS.

Correspondingly, if the first SRS information is different from the second SRS information, the network device does not receive or delays receiving the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel.

In the following embodiments, the collision between SRS and uplink shared physical channel (hereinafter, abbreviated as PUSCH) is described as an example.

The first SRS information and the second SRS information are both "SRS information" and are used to instruct the terminal device to transmit or not to transmit an SRS, and the "first" and the "second" are used to distinguish the two "SRS information". It should be understood that, when the first SRS information is used to instruct the terminal device to transmit the SRS, the SRS transmitted by the terminal device is the first SRS. Similarly, when the second SRS information is used to instruct the terminal device to transmit the SRS, the SRS transmitted by the terminal device is the second SRS.

The first SRS information and the second SRS information may be information included in the downlink control information DCI and used for instructing the terminal device to transmit or not to transmit an SRS, where the information may be a field, a field value, or another parameter in the DCI and used for instructing the terminal device to transmit or not to transmit an SRS.

The first SRS information may be different from the second SRS information in meaning indicated by the first SRS information and the second SRS information. For example: the first SRS information is used for indicating the terminal equipment not to send the SRS, and the second SRS information is used for indicating the terminal equipment to send the SRS. Or the like, or, alternatively,

the first SRS information may be different from the second SRS information, and the first SRS information may be different from the second SRS information. For example, when the SRS information is a field, the first SRS information and the second SRS information may be different: a first field corresponding to the first SRS information is different from a second field corresponding to the second SRS information, for example, the first SRS information is different from the second SRS information if the first field is 00 and the second field is 01, or the first SRS information is different from the second SRS information if the first field is 10 and the second field is 01; alternatively, the first SRS information may be different from the second SRS information in that a meaning indicated by a first field corresponding to the first SRS information is different from a meaning indicated by a second field corresponding to the second SRS information, for example, the first field is 0 for indicating that the terminal device does not transmit the SRS, the second field is 1 for indicating that the terminal device transmits the SRS, and the first SRS information is different from the second SRS information. Or the like, or, alternatively,

it is to be understood that, when the first information is other first parameters in the DCI and the second information is other second parameters in the DCI, the first information and the second information may be different from each other, or the meaning of the first parameter and the meaning of the second parameter are different.

To better explain the communication method in the present application, first, an SRS parameter set included in RRC signaling transmitted by a network device is explained.

In the embodiment of the present application, a network device may separately configure a parameter set of an extended SRS in an RRC signaling, or add the parameter set of the extended SRS on the basis of an existing SRS parameter set, where the SRS parameter set in the prior art is a parameter set of a conventional SRS, as shown in table one and table two above. That is, the SRS parameter set in the RRC signaling in the embodiment of the present application may include the parameter set of the extended SRS, or may also include the parameter set of the legacy SRS and the parameter set of the extended SRS. It is to be understood that the set of SRS parameters in RRC signaling may include the set of parameters for other types of SRS if there is a collision between the other types of SRS and the PUSCH. It should be understood that when what type of SRS parameter set is configured by RRC signaling, the terminal device may perform transmission of that type of SRS.

In order to enable the conventional SRS and the extended SRS to be transmitted on the same subframe, a triggering rule for triggering the conventional SRS and the extended SRS to be transmitted on the same subframe is further designed in the embodiment of the present application. The triggering rule and the SRS parameter set are described below by taking the SRS parameter set in the RRC signaling as an example, which includes the conventional SRS parameter set and the extended SRS parameter set.

The DCI includes SRS information for instructing the terminal device to transmit or not to transmit an SRS. The SRS information in the DCI is used as a field, and the field value occupies 2 bits in the DCI for illustration. As shown in table three, the SRS information may be any one of 00, 01, 10, or 11. Since the SRS parameter set includes the parameter set of the conventional SRS and the parameter set of the extended SRS, when the SRS information is 00, the SRS information is used to instruct the terminal device not to transmit the conventional SRS and the extended SRS; when the SRS information is any one of 01, 10, or 11, the SRS information is used to instruct the terminal device to transmit the legacy SRS and/or the extended SRS, and the SRS information is further used to instruct the first parameter set and/or the second parameter set. Wherein the first set of parameters comprises: the configuration parameters of the SRS transmitted on the non-last symbol on the subframe, i.e. the first parameter set, are the parameter sets of the extended SRS. The second set of parameters comprises: the configuration parameters of the SRS transmitted on the last symbol on the subframe, i.e. the second parameter set, are parameter sets of the legacy SRS. Further, the terminal device may determine a time unit for transmitting the legacy SRS and the extended SRS according to the SRS parameter set. The time unit in the embodiment of the present application may be a subframe, an OFDM symbol, or a slot (slot).

Watch III

The parameter sets of the legacy SRS and/or the extended SRS corresponding to the different fields shown in table three are two independent parameter sets. The SRS parameter set in table four also includes the parameter set of the legacy SRS and/or the parameter set of the extended SRS, but differs from table three in the third parameter set indicated by the SRS information in table four. The third set of parameters comprises: the configuration parameters of the SRS transmitted on any symbol in the subframe, i.e. the third parameter set, are a set of parameters of the legacy SRS and/or a set of parameters of the extended SRS. Optionally, the legacy SRS and/or extended SRS parameters configured by the RRC high layer signaling may include, but are not limited to, the number of time units for transmitting the legacy SRS and/or the extended SRS, the location of the time units, and the like.

Watch four

It can be understood that, when the SRS information is a field, the field value may occupy 1 bit in the DCI. Table five shows the SRS parameter set included in the RRC signaling in the embodiment of the present application when the field value is 1 bit.

Watch five

In this embodiment, when the first SRS information is used to instruct the terminal device to transmit the first SRS, the terminal device may determine, according to the first SRS information, a time unit for transmitting the first SRS in the SRS parameter set. Similarly, when the second SRS information is used to instruct the terminal device to transmit the second SRS, the terminal device may determine, according to the second SRS information, a time unit in the SRS parameter set for transmitting the second SRS. Since both the first downlink control information and the second downlink control information are used for scheduling uplink transmission or downlink transmission, the terminal device may determine a time unit for PUSCH transmission according to the first downlink control information and the second downlink control information. Accordingly, the terminal device can determine whether the SRS and the PUSCH collide.

If the SRS collides with the PUSCH, the collision in the embodiment of the present application means that a time unit for transmitting the SRS and a time unit for transmitting the PUSCH overlap in a time domain and/or a frequency domain. The time unit in the embodiment of the present application is at least one subframe or at least one OFDM symbol or at least one slot (slot). It is to be understood that in one DCI, the time units in which the network device configures the transmission of SRS and PUSCH may not overlap. In the embodiment of the present application, the time elements for transmitting the SRS and the PUSCH in the first downlink control information and the second downlink control information are overlapped (that is, the SRS and the PUSCH collide) as an example.

The time units for transmitting SRS and PUSCH overlap (i.e., SRS collides with PUSCH), and one possible scenario is: when the SRS colliding with the PUSCH is the first SRS corresponding to the first SRS information, the first SRS information is used for indicating the terminal equipment to transmit the first SRS, the first SRS is the SRS transmitted on a first time unit, and the second downlink control information is used for indicating the PUSCH to be transmitted on the first time unit. Optionally, in this case, the second information may be used to instruct the terminal device to transmit the second SRS, where a time unit for transmitting the second SRS is different from the first time unit. Optionally, in this case, the second information may be used to instruct the terminal device not to transmit the second SRS.

In this scenario, the first SRS information is used to indicate a first SRS parameter set and/or a second SRS parameter set, where the first SRS parameter set is: a second set of SRS parameters transmitted on a non-last symbol of a time unit, the second set of SRS parameters being: a parameter set of the SRS transmitted on a last symbol of the time unit; or, the first SRS information is used to refer to a third SRS parameter set, where the third SRS parameter set is: parameter sets for transmitted SRSs on any one symbol of a time unit.

When the second SRS information indicates that the terminal device transmits the second SRS, the second information may also be used to indicate the first SRS parameter set and/or the second SRS parameter set, or the second information may also be used to indicate the third SRS parameter set. The first, second, and third SRS parameter sets may be the same as described above.

Another possible scenario is: when the SRS colliding with the PUSCH is the first SRS corresponding to the first SRS information, the first downlink control information is used to instruct the PUSCH to be transmitted in a first time unit, the second SRS information is used to instruct the terminal device to transmit the second SRS, and the second SRS is the SRS transmitted in the first time unit. Optionally, in this case, the first information may be used to instruct the terminal device to transmit the first SRS, and a time unit for transmitting the first SRS is different from the first time unit. Optionally, in this case, the first information may be used to instruct the terminal device not to transmit the second SRS.

In this case, the second SRS information is used to indicate a first SRS parameter set and/or a second SRS parameter set, where the first SRS parameter set is: a second set of SRS parameters transmitted on a non-last symbol of a time unit, the second set of SRS parameters being: a parameter set of the SRS transmitted on a last symbol of the time unit; or, the second SRS information is used to refer to a third SRS parameter set, where the third SRS parameter set is: parameter sets for transmitted SRSs on any one symbol of a time unit.

When the first SRS information indicates that the terminal device transmits the first SRS, the first information may also be used to indicate the first SRS parameter set and/or the second SRS parameter set, or the first information may also be used to indicate the third SRS parameter set. The first, second, and third SRS parameter sets may be the same as described above.

It should be noted that, since the SRS collides with the PUSCH, that is, it is indicated that the time unit for transmitting the SRS and the time unit for transmitting the PUSCH overlap, all of the time units may overlap, or a part of the time units may overlap. In this embodiment of the application, the terminal device does not transmit or delays to transmit the SRS colliding with the PUSCH, and may not transmit or delay to transmit all the SRSs overlapping with the PUSCH, for example, fig. 5 is a schematic diagram of SRS collision with PUSCH. Fig. 5 illustrates an example of the time unit being an OFDM symbol, and as shown in fig. 5, the OFDM symbol for transmitting PUSCH is the time units at time positions 1 and 3 in the time domain (hatched by oblique lines in fig. 5), and the OFDM symbol for transmitting SRS is the time units at time positions 3 and 5 in the time domain (hatched by squares in fig. 5), in which case, the time units for transmitting PUSCH and the time units for transmitting SRS overlap at time positions 3 in the subframe. In this case, the terminal device does not transmit the SRS or delays transmission of the SRS in time units having time domain positions 3 and 5 in the subframe.

Optionally, in this embodiment of the application, the terminal device does not transmit or delays to transmit the SRS that collides with the PUSCH, and may not transmit or delays to transmit the SRS that overlaps with the PUSCH. For example, as shown in fig. 5, in this case, the terminal device does not transmit the SRS in the time unit with the time domain position of 3 in the subframe or delays transmission of the SRS that should originally be transmitted in the time unit with the time domain position of 3 in the subframe.

It can be understood that, in the embodiment of the present application, the SRS whose terminal device delays transmitting and has an overlap with the PUSCH may be: the terminal equipment delays transmitting the SRS with the overlapping PUSCH on a new time unit. The new time unit may be a new subframe, a new slot, or a new symbol.

For example, when the new time unit is a new subframe, the terminal device transmits an SRS that overlaps with the PUSCH on the new subframe. Optionally, the new subframe may be a subframe that satisfies the SRS transmission requirement first 4ms after the subframe that transmits the PUSCH in the time domain, where the subframe that satisfies the SRS transmission requirement may refer to the condition in the prior art. Optionally, the SRS overlapping with the PUSCH may also be transmitted in a new slot or a new symbol, where the new slot or the new symbol may be a slot or a symbol in a subframe in which the PUSCH is transmitted, or may also be a slot or a symbol in a new subframe.

It should be noted that the method in this embodiment of the present application may also be applied to a scenario in which a terminal device receives multiple DCIs before transmitting a PUSCH, and the terminal device may adopt the above method according to two received DCIs that are adjacent in a time domain, and does not transmit or delays to transmit an SRS that collides with a PUSCH when the SRS and the PUSCH collide.

In the communication method provided in the embodiment of the present application, when the terminal device determines that the PUSCH and the SRS collide with each other according to the first downlink control information and the second downlink control information, the network device may configure different SRS information in the first downlink control information and the second downlink control information, that is, the first SRS information is different from the second SRS information. The first SRS information and the second SRS information are different from each other, which does not mean that the terminal device does not transmit the SRS colliding with the PUSCH, but instructs the terminal device to decide whether to not transmit or delay transmission of the SRS colliding with the PUSCH. The communication method in the embodiment of the application increases the opportunity that the terminal equipment sends the SRS conflicting with the PUSCH, so that the network equipment can acquire more SRSs to accurately estimate the uplink channel quality.

The following describes a communication method provided by the present application in a scenario where a terminal device does not transmit or delays transmission of an SRS colliding with a PUSCH in an embodiment of the present application.

In this embodiment of the present application, fig. 6 is a flowchart illustrating that a terminal device does not transmit or delays to transmit an SRS that collides with an uplink shared physical channel and/or an uplink control physical channel according to the embodiment of the present application. As shown in fig. 6, S103 may include:

and S1031, if the first SRS information is different from the second SRS information, the terminal equipment delays to send the SRS conflicted with the uplink shared physical channel and/or the uplink control physical channel according to the delay parameter.

Correspondingly, if the first SRS information is different from the second SRS information, the network device delays receiving the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel according to a delay parameter.

In this embodiment of the present application, the first SRS information is a first field, the second SRS information is a second field, and the first SRS information and the second SRS information are different from each other in that: the field value of the first field is different from the field value of the second field, for example, the first field value is 00 and the second field value is 01. The first field value and the second field value in the embodiment of the present application may be as indicated by the field values in the above table three and table four.

The delay parameter in the embodiment of the present application is predefined or configured by the network device to the terminal device.

If the delay parameter is predefined, both the terminal device and the network device know the delay parameter in advance. And when the first SRS information and the second SRS information are different, the terminal equipment delays to transmit the SRS colliding with the PUSCH according to the delay parameter.

In this embodiment of the present application, the delay parameter may be a delay time unit, and the terminal device may delay sending, according to the delay parameter, the SRS that collides with the PUSCH and may be: the terminal device determines a first time unit for transmitting the SRS colliding with the PUSCH. The terminal device may determine, according to the first downlink control information and the second downlink control information, a time unit configured by the network device and used for sending the PUSCH; and determining a time unit for transmitting the first SRS corresponding to the first SRS information and a time unit for transmitting the second SRS corresponding to the second SRS information according to the first SRS information, the second SRS information and the SRS parameter set in the RRC signaling. The time unit in which the time units for PUSCH and SRS transmission overlap is the first time unit.

And the terminal equipment determines a second time unit according to the first time unit and the delay time unit, and sends the SRS collided with the PUSCH on the second time unit. Wherein the second time unit may be a sum of the first time unit and the delay time unit. It is noted that, if the time unit obtained by the summation of the first time unit and the delay time unit does not satisfy the condition for transmitting the SRS, the first time unit satisfying the SRS transmission is determined after the time unit obtained by the summation, and the first time unit satisfying the SRS transmission is the second time unit. The delay time unit in the embodiment of the present application may be any one of a delay subframe, a delay symbol, or a delay slot.

If the delay parameter is configured by the network device to the terminal device, the embodiment of the present application describes a manner in which the network device configures the delay parameter to the terminal device from the following aspects:

a first possible way: the RRC signaling is configured with a delay parameter, for example, the number of bits may be increased in the RRC signaling to indicate the delay parameter. In an actual application scenario, the terminal device may receive an RRC signaling from the network device before acquiring the first downlink control information and the second downlink control information. It should be understood that the terminal device may receive the same RRC signaling from the network device before receiving the first downlink control information and the second downlink control information, and the terminal device delays sending the SRS colliding with the PUSCH according to the delay parameter configured in the RRC signaling. Or the terminal device receives the first RRC signaling before receiving the first downlink control information and receives the second RRC signaling before receiving the second downlink control information, in the application, the terminal device determines that the later RRC signaling is received in the two RRC signaling, and delays sending the SRS which conflicts with the PUSCH according to the delay parameter configured in the later RRC signaling.

A second possible way: the delay parameter is configured in each downlink control information, and for example, the number of bits may be increased in the downlink control information to indicate the delay parameter. And the terminal equipment determines the later downlink control information in the first downlink control information and the second downlink control information, and delays to send the SRS conflicted with the PUSCH according to the delay parameter configured in the later downlink control information.

Or the network device configures the delay parameter only in the later downlink control information of the first downlink control information and the second downlink control information. Optionally, the delay parameter is configured in the first downlink control information, the first downlink control information is later than the second downlink control information in a time domain, and the terminal device delays sending the SRS colliding with the PUSCH according to the delay parameter in the first downlink control information; or, the delay parameter is configured in the second downlink control information, the second downlink control information is later than the first downlink control information in a time domain, and the terminal device delays sending the SRS colliding with the PUSCH according to the delay parameter in the second downlink control information.

A third possible way: the SRS parameter set included in the RRC signaling is configured with a delay parameter.

As shown in the following table six, in the embodiment of the present application, a delay parameter may be configured in the SRS parameters corresponding to different field values in the SRS parameter set, that is, the SRS information is used to indicate the SRS parameters (including the delay parameter) corresponding to the SRS parameter set. Or as shown in table seven, a delay parameter may also be configured independently in the SRS parameters corresponding to different field values in the SRS parameter set, that is, the SRS information indicates that the SRS information indicates the SRS parameter corresponding to the SRS parameter set and the corresponding delay parameter.

The terminal device determines later SRS information (namely SRS information in the later downlink control information in the first downlink control information and the second downlink control information) in the first SRS information and the second SRS information according to the first SRS information and the second SRS information, obtains a delay parameter corresponding to the later SRS information in an SRS parameter set, and delays and transmits the SRS conflicting with the PUSCH according to the delay parameter. For example, when the first downlink control information is later than the second downlink control information in a time domain, the first SRS information is further used to indicate the delay parameter; or, the second downlink control information is later than the first downlink control information in a time domain, and the second SRS information is further used for indicating the delay parameter.

As shown in tables six and seven below, where the delay parameters in the SRS parameters corresponding to field values 01, 10 and 11 are K1, K2 and K3, respectively, alternatively, K1, K2 and K3 may be the same or different.

Watch six

Watch seven

Optionally, a delay parameter may be configured in an SRS parameter corresponding to a later SRS information of the first SRS information and the second SRS information. In this way, the delay parameter corresponding to the later SRS information is acquired from the SRS parameter set based on the later SRS information, and the SRS colliding with the PUSCH is transmitted with a delay based on the delay parameter.

It is understood that the above three ways of configuring the delay parameter for the terminal device by the network device may be used alternatively or in combination.

S1032, if the first SRS information is different from the second SRS information, and if the delay parameter is not predefined and the network device does not configure the delay parameter for the terminal device, not sending the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel.

Correspondingly, if the first SRS information is different from the second SRS information, if the delay parameter is not predefined and the network device does not configure the delay parameter for the terminal device, the network device does not receive the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel.

In this embodiment of the application, on the premise that the first SRS information and the second SRS information are different, if the delay parameter is not predefined and the network device does not configure the delay parameter for the terminal device, that is, the network device does not configure the delay parameter in the SRS parameter set of the RRC signaling, the downlink control information, or the RRC signaling, so that the terminal device cannot acquire the delay parameter, the SRS colliding with the PUSCH is not transmitted.

It should be understood that there is no distinction of the order between S1031 and S1032 in the embodiment of the present application, and either of them may be performed.

Optionally, in this embodiment of the application, if the first SRS information and the second SRS information are the same, the scenario is identical to a scenario in which SRS information configured in each DCI must be the same in order to ensure SRS transmission in the prior art, and the terminal device does not transmit an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel.

In the embodiment of the application, the terminal equipment delays sending the SRS conflicted with the uplink shared physical channel and/or the uplink control physical channel according to the delay parameter through the predefined delay parameter or the delay parameter configured by the network equipment to the terminal equipment, so that the sending chance of the SRS is increased, and the aim of accurately estimating the quality of the uplink channel by obtaining more SRSs by the network equipment is fulfilled. Further, the network device may configure a delay parameter in the RRC signaling, or configure a delay parameter in the downlink control system information, or configure a delay parameter in the SRS parameter set of the RRC signaling, so as to achieve the purpose that the terminal device obtains the delay parameter and further delays sending the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel.

The embodiment of the application also provides a communication method, which is applied to a scene of antenna selection for sending the SRS by the terminal equipment. In the prior art, a terminal device transmits an SRS using a fixed antenna selection mode. For example, taking an example that the terminal device has 1 transmitting antenna and 2 receiving antennas (1T2R), for example, when the terminal device transmits the SRS, the terminal device performs a repeated channel Sounding (Sounding) operation mode on the same antenna. Thus, for a terminal in the edge area of the serving cell, the quality of sending the SRS by the same antenna can be improved; however, for a terminal located in the edge area of the serving cell, it is inconvenient for the terminal device to quickly transmit SRS on all antennas, and the SRS transmission period is long, so that the network device cannot quickly schedule uplink transmission and downlink transmission according to the SRS.

In order to solve the above problem, in the embodiment of the present application, a communication method is provided, where a terminal device selects an antenna selection mode for sending an SRS according to a parameter configured by a network device, so as to improve performance of sending the SRS by the terminal.

Fig. 7 is a flowchart illustrating another communication method according to an embodiment of the present application. The execution subject of the communication method may be a terminal device. As shown in fig. 7, the communication method includes:

s201, a network device sends a first parameter to a terminal device, wherein the first parameter is used for indicating an SRS antenna selection mode of the terminal device.

Correspondingly, the terminal equipment receives the first parameter from the network equipment.

It should be understood that, in the embodiment of the present application, the SRS antenna selection mode indicated by the first parameter is used for performing fast SRS antenna selection for the terminal device. Optionally, the first parameter may be configured to the terminal device by the network device through RRC high layer signaling.

It should be understood that, when the terminal device is configured to enable SRS antenna selection, the terminal device is configured with at least two SRS parameter sets, and after receiving the first parameter, the SRS antenna selection mode may be obtained according to the following formula one.

Wherein, T_SRSIs the period, T, in which the terminal device transmits the SRS_offsetIs SRS subframe level offset, T_{offset_max}Is as followsThe sub-frame level offset T_offsetMaximum value of n_sIs the slot number, n_fSubframe (subframe) number, Nsp a special subframe number, N_SrsConfigNumber of terminal equipment SRS configurations, n_SrsConfig＝{0,…N_SrsConfig-1 is the subscript on the number of SRS configurations, n_SrsConfigThe ISRS increases in order as 3GPP TS36.213V15.5.0 section 8.2.

It should be understood that, when the network device configures the terminal device with the following three parameters, 1) the network device is configured to enable SRS antenna selection; 2) at least two SRS parameter sets are configured; 3) a first parameter is configured. The terminal device may obtain the SRS antenna selection mode according to the following formula one.

Optionally, when the network device does not configure the terminal device with at least one of the above three parameters, the terminal device may obtain the SRS antenna selection mode according to the following formula two.

It should be understood that the above equations one and two may be predefined. S202, the terminal equipment transmits the SRS according to the SRS antenna selection mode.

The terminal device may determine the SRS antenna selection mode according to the first parameter. Optionally, the SRS antenna selection mode determined by the terminal may be a time unit (e.g., an OFDM symbol, a subframe, a special subframe, etc.) and an antenna port for transmitting the SRS. And the terminal transmits the SRS according to the SRS antenna selection mode, namely the terminal transmits the SRS at the determined time unit through the antenna port.

For convenience of explanation, the SRS antenna selection mode determined by the terminal device according to the first parameter is illustrated in a table format below. It should be understood that the table is merely one example form.

It should be understood that the 2-bit representation of the first parameter in table eight is an example, and other representations (e.g., 1-bit) are also possible. Wherein, each SRS antenna selection mode shown in table eight corresponds to: the terminal device sends a pattern, or sequence, of antenna ports used by the SRS in different time units (e.g., OFDM symbols, subframes, special subframes, etc.).

Table eight

First parameter	Description of the invention
		00	First antenna mode
01	Second antenna mode
		10	Third antenna mode
11	Reservation

The SRS antenna selection pattern acquired by the terminal is explained below. The time unit for sending the SRS is taken as a special subframe, for example, an uplink pilot time slot (UpPTS) is taken as an example for explanation. In the embodiment of the present application, the network device configures 6 SRS symbols (i.e., symbols for transmitting SRS) in the UpPTS for the terminal device to transmit SRS.

One possible way is: the antenna selection mode obtained by the terminal equipment according to the formula two is as follows: and continuously sounding the same antenna at the 6 SRS symbols to improve sounding performance and improve SRS sending quality of the terminal equipment on the antenna. Optionally, the antenna selection mode is suitable for a terminal device located in a border area of a serving cell, and may improve quality of SRS transmission by the terminal device.

When the antenna configured for the terminal device is 1T2R or 2T4R, the antenna selection mode obtained by the terminal device may be as shown in table nine below:

watch nine

Symbol 1, symbol 2, symbol 3, and symbol 4 may be extension symbols in UpPTS, and symbol 5 and symbol 6 are legacy symbols in UpPTS. Wherein k is_SRSIn order to obtain the parameters of the antenna port, the terminal device may determine the antenna for transmitting the SRS according to the parameters. Frame (n)_f) Frame (n) as an identifier of a radio Frame corresponding to the UpPTS transmitting the SRS_f+1) is the sending Frame (n)_f) Followed by a radio frame. n is_SRSFor the identifier of the antenna port for transmitting the SRS, the port in table nine may be an antenna port identified as 0 or 1, and the following description will be given by using an antenna corresponding to the port identifier (for example, the antenna No. 0 is an antenna corresponding to the port No. 0). As shown in Table nine, in this scenario, for example, the radio Frame (n)_f) In the above, antenna number 0 is controlled over 6 SRS symbols, and in the radio Frame (n)_f+1), controlling number 1 antenna to continuously sounding on 6 SRS symbols, which can improve the performance of antenna sounding, so as to improve the quality of SRS transmission on number 0 antenna and number 1 antenna by the terminal device.

When the antenna configured for the terminal device is 1T4R, the antenna selection mode obtained by the terminal device may be as shown in the following table ten:

for 1T4R antenna, the terminal device may control continuous sounding of antenna 0, antenna 1, antenna 2, and antenna 3 on 6 SRS symbols, respectively, so as to improve the quality of SRS transmission from the terminal device on antenna 0, antenna 1, antenna 2, and antenna 3.

Watch ten

Another possible way is: the antenna selection mode obtained by the terminal device according to the first parameter (as in the above formula one) is: and repeatedly sounding the two antennas at the 6 SRS symbols to ensure sounding performance and sounding quality of the terminal equipment for sending the SRS. Optionally, the antenna selection mode is applicable to terminal devices located in the first areas of the edge area and the center area of the serving cell, and the quality of SRS transmission by the terminal device can be ensured by using the antenna selection mode.

When the antenna configured for the terminal device is 1T2R or 2T4R, the antenna selection mode obtained by the terminal device may be as shown in table eleven below:

watch eleven

As shown in Table eleven, in this scenario, for example, the radio Frame (n)_f) And Frame (n)_f+1), controlling the antenna No. 0 and the antenna No. 1 to repeatedly and continuously sounding on 6 SRS symbols, which can ensure sounding performance, so as to ensure quality of SRS transmission on the antenna No. 0 and the antenna No. 1 by the terminal device.

When the antenna configured for the terminal device is 1T4R, the antenna selection mode obtained by the terminal device may be as shown in table twelve below: and (4) a scene with a relatively high moving speed.

Watch twelve

As shown in Table twelve, in this scenario, for example, the radio Frame (n)_f) In 6 SRS symbolsNumber-up control antenna No. 0 and antenna No. 1 repeatedly and continuously sounding, and wireless Frame (n)_f+1), controlling the number 2 antenna and the number 3 antenna to repeatedly and continuously sounding on 6 SRS symbols, which can ensure sounding performance, so as to ensure quality of sending SRS on the number 0 antenna and the number 1 antenna by the terminal device.

Yet another possible way is: the antenna selection mode obtained by the terminal device according to the first parameter (as in the above formula one) is: and repeatedly sounding all the antennas at the 6 SRS symbols to reduce sounding period and improve SRS sending speed of the terminal equipment. Optionally, the antenna selection mode is suitable for terminal equipment located in a central area of a serving cell, and by using the antenna selection mode, a sounding period can be reduced, and the speed of sending an SRS by the terminal equipment can be increased, so that network equipment can rapidly schedule uplink and downlink transmission according to the SRS.

When the antenna configured for the terminal device is 1T2R or 2T4R, the antenna selection mode obtained by the terminal device may be as shown in table thirteen below:

watch thirteen

As shown in Table thirteen, in this scenario, for example, the radio Frame (n)_f) In the method, all antennas, namely the antenna 0 and the antenna 1, in the terminal device are controlled on the 6 SRS symbols, and sounding is continuously performed repeatedly, so that each antenna can rapidly transmit the SRS, the period of sounding of the antennas is reduced, and the speed of transmitting the SRS by the terminal device is increased.

When the antenna configured for the terminal device is 1T4R, the antenna selection mode obtained by the terminal device may be as shown in the following table fourteen:

table fourteen

As shown in the fourteen tables, in such a scenario, for example, the wireless frame Frame(n_f) And in the radio Frame (n)_f+1), all antennas in the terminal device, that is, antenna No. 0, antenna No. 1, antenna No. 2, and antenna No. 3, are controlled on 6 SRS symbols, and sounding continues repeatedly, so that each antenna can quickly transmit SRS, the period of sounding by the antennas is reduced, and the speed of transmitting SRS by the terminal device is increased.

In the embodiment of the application, the network device enables the terminal device to perform rapid SRS antenna selection through the first parameter, so that the terminal device determines an SRS antenna selection mode suitable for the terminal device according to the first parameter, and the performance of the terminal for sending the SRS is improved.

Fig. 8 is a first schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 8, the communication apparatus according to the present embodiment may be the terminal device described above, or may be a chip applied to a terminal device. The communication device can be used for executing the actions of the terminal equipment in the method embodiment. As shown in fig. 8, the communication apparatus may include: a transceiver module 11 and a processing module 12. Wherein the content of the first and second substances,

a transceiver module 11, configured to receive first downlink control information from a network device, where the first downlink control information includes first SRS information.

The transceiver module 11 is further configured to receive second downlink control information from the network device, where the second downlink control information includes second SRS information.

A processing module 12, configured to not transmit or delay transmission of an SRS that collides with an uplink shared physical channel and/or an uplink control physical channel if the first SRS information is different from the second SRS information, where the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel is a first SRS corresponding to the first SRS information or a second SRS corresponding to the second SRS information.

Optionally, the processing module 12 is specifically configured to delay sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel according to the delay parameter.

Optionally, the processing module 12 is specifically configured to not send the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel if the delay parameter is not predefined and the network device does not configure the delay parameter for the terminal device.

Optionally, the processing module 12 is further configured to not send the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel if the first SRS information is the same as the second SRS information.

Optionally, the delay parameter is a delay time unit.

A processing module 12, configured to determine a first time unit for sending an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel; and determining a second time unit according to the first time unit and the delay time unit, and transmitting the SRS collided with the uplink shared physical channel and/or the uplink control physical channel by the terminal equipment in the second time unit.

Optionally, the transceiver module 11 is further configured to receive a first parameter sent by a network device, where the first parameter is used to indicate an SRS antenna selection mode of the terminal device.

And a processing module 12, configured to receive the SRS transmitted according to the SRS antenna selection mode.

Wherein the antenna selection mode index is used for indicating an operation mode of an antenna and an identification of the antenna.

The communication apparatus provided in the embodiment of the present application may perform the actions of the terminal device in the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 9 is a schematic structural diagram of another communication device according to an embodiment of the present application. As shown in fig. 9, the communication device according to the present embodiment may be the aforementioned network device. The communication device can be used for executing the actions of the terminal equipment in the method embodiment. As shown in fig. 9, the communication apparatus may include: a transceiver module 21 and a processing module 22. Wherein the content of the first and second substances,

the transceiver module 21 is configured to send first downlink control information to a terminal device, where the first downlink control information includes first SRS information.

The transceiver module 21 is further configured to send second downlink control information to the terminal device, where the second downlink control information includes second SRS information.

A processing module 22, configured to not receive or delay receiving an SRS that collides with an uplink shared physical channel and/or an uplink control physical channel if the first SRS information is different from the second SRS information, where the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel is an SRS corresponding to the first SRS information or an SRS corresponding to the second SRS information.

Optionally, the processing module 22 is specifically configured to delay, according to the delay parameter, the network device receiving the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel.

Optionally, the processing module 22 is further configured to not receive the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel if the delay parameter is not predefined and the network device does not configure the delay parameter for the terminal device.

Optionally, the processing module 22 is further configured to not receive the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel if the first SRS information is the same as the second SRS information.

Optionally, the processing module 22 is specifically configured to determine a first time unit for receiving the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel; and determining a second time unit according to the first time unit and the delay time unit, and receiving, by the network equipment, the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel in the second time unit.

Optionally, the transceiver module 21 is further configured to send a first parameter to the terminal device, where the first parameter is used to indicate an SRS antenna selection mode of the terminal device.

The communication apparatus provided in the embodiment of the present application may perform the actions of the network device in the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

It should be noted that the transceiver module above may be actually implemented as a transceiver, or include a transmitter and a receiver. The processing module can be realized in the form of software called by the processing element; or may be implemented in hardware. For example, the processing module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and a function of the processing module may be called and executed by a processing element of the apparatus. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when some of the above modules are implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can call program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

Fig. 10 is a schematic structural diagram of another communication device according to an embodiment of the present application. As shown in fig. 10, the communication apparatus may include: a processor 51 (e.g., CPU), a memory 52, a transceiver 53; the transceiver 53 is coupled to the processor 51, and the processor 51 controls the transceiving action of the transceiver 53; the memory 52 may include a random-access memory (RAM) and a non-volatile memory (NVM), such as at least one disk memory, and the memory 52 may store various instructions for performing various processing functions and implementing the method steps of the present application. Optionally, the communication apparatus related to the present application may further include: a power supply 54, a communication bus 55, and a communication port 56. The transceiver 53 may be integrated in a transceiver of the communication device or may be a separate transceiving antenna on the communication device. The communication bus 55 is used to realize communication connection between the elements. The communication port 56 is used for connection communication between the communication device and other peripherals.

In the embodiment of the present application, the memory 52 is used for storing computer executable program codes, and the program codes include instructions; when the processor 51 executes the instruction, the instruction causes the processor 51 of the communication apparatus to execute the processing action of the terminal device in the foregoing method embodiment, and causes the transceiver 53 to execute the transceiving action of the terminal device in the foregoing method embodiment, which has similar implementation principle and technical effect, and is not described herein again.

Fig. 11 is a schematic structural diagram of another communication device according to an embodiment of the present application. As shown in fig. 11, the communication apparatus may include: a processor 61 (e.g., CPU), memory 62, transceiver 63; the transceiver 63 is coupled to the processor 61, and the processor 61 controls the transceiving action of the transceiver 63; the memory 62 may include a random-access memory (RAM) and a non-volatile memory (NVM), such as at least one disk memory, and the memory 62 may store various instructions for performing various processing functions and implementing the method steps of the present application. Optionally, the communication apparatus related to the present application may further include: a power supply 64, a communication bus 65, and a communication port 66. The transceiver 63 may be integrated in a transceiver of the communication device or may be a separate transceiving antenna on the communication device. The communication bus 65 is used to realize communication connection between the elements. The communication port 66 is used for connection communication between the communication device and other peripheral devices.

In the embodiment of the present application, the memory 62 is used for storing computer executable program codes, and the program codes comprise instructions; when the processor 61 executes the instruction, the instruction causes the processor 61 of the communication apparatus to execute the processing action of the network device in the foregoing method embodiment, and causes the transceiver 63 to execute the transceiving action of the network device in the foregoing method embodiment, which has similar implementation principle and technical effect, and is not described herein again.

The embodiment of the application also provides a communication system. Fig. 12 is a schematic structural diagram of a communication system according to an embodiment of the present application. As shown in fig. 12, the communication system may include: network equipment and terminal equipment. The terminal device may be the communication apparatus in fig. 8 or fig. 10, and is configured to perform the actions of the terminal device in the foregoing embodiment; the network device may be the communication apparatus in fig. 9 or fig. 11, which is used to execute the actions of the network device in the above embodiments. The implementation principle and technical effect of the terminal device and the network device are similar, and are not described herein again.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The term "plurality" herein means two or more. The term "and/or" herein is merely an association 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 the formula, the character "/" indicates that the preceding and following related objects are in a relationship of "division".

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application.

It should be understood that, in the embodiment of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.

Claims

1. A communication method is applied to a terminal device, and the method comprises the following steps:

the terminal equipment receives first downlink control information from network equipment, wherein the first downlink control information comprises first SRS information;

the terminal equipment receives second downlink control information from the network equipment, wherein the second downlink control information comprises second SRS information;

if the first SRS information is different from the second SRS information, the terminal device does not transmit or delay transmission of the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel, where the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel is the first SRS corresponding to the first SRS information or the second SRS corresponding to the second SRS information.

2. The method of claim 1, wherein delaying the transmission of the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel comprises:

and according to the delay parameter, the terminal equipment delays sending the SRS conflicted with the uplink shared physical channel and/or the uplink control physical channel.

3. The method of claim 2,

the delay parameter is predefined or configured by the network device to the terminal device.

4. The method according to any one of claims 1 to 3,

the first SRS information is also used for indicating a delay parameter, and the first downlink control information is later than the second downlink control information in a time domain; or the like, or, alternatively,

the second SRS information is further configured to indicate the delay parameter, and the second downlink control information is later than the first downlink control information in a time domain.

5. The method according to any of claims 1-3, wherein the not transmitting the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel comprises:

and if the delay parameter is not predefined and the network equipment does not configure the delay parameter for the terminal equipment, the terminal equipment does not send the SRS conflicted with the uplink shared physical channel and/or the uplink control physical channel.

6. The method according to any one of claims 1-3, further comprising:

and if the first SRS information is the same as the second SRS information, the terminal equipment does not send the SRS conflicting with the uplink shared physical channel and/or the uplink control physical channel.

7. The method according to claim 2 or 3, wherein the delay parameter is a delay time unit, and the delaying of sending the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel comprises:

determining a first time unit for transmitting an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel;

and determining a second time unit according to the first time unit and the delay time unit, and transmitting the SRS collided with the uplink shared physical channel and/or the uplink control physical channel by the terminal equipment in the second time unit.

8. The method of claim 1,

the first SRS information is used to instruct the terminal device to transmit the first SRS, where the first SRS is an SRS transmitted in a first time unit, and the second downlink control information is used to instruct the terminal device to transmit the uplink shared physical channel and/or the uplink control physical channel in the first time unit; or the like, or, alternatively,

9. The method of claim 1,

the first SRS information is a first field, the second SRS information is a second field, and the first SRS information and the second SRS information are different from each other in that: a field value of the first field is different from a field value of the second field.

10. The method of claim 1,

the first SRS information is used for indicating the terminal equipment not to send the first SRS; or the like, or, alternatively,

11. A communication method applied to a network device includes:

the network equipment sends first downlink control information to terminal equipment, wherein the first downlink control information comprises first SRS information;

the network equipment sends second downlink control information to the terminal equipment, wherein the second downlink control information comprises second SRS information;

if the first SRS information is different from the second SRS information, the network device does not receive or delay receiving the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel, where the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel is the SRS corresponding to the first SRS information or the SRS corresponding to the second SRS information.

12. The method of claim 11, wherein the delaying the reception of the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel comprises:

and according to the delay parameter, the network equipment delays receiving the SRS conflicted with the uplink shared physical channel and/or the uplink control physical channel.

13. The method of claim 12,

14. The method according to any one of claims 11-13, further comprising:

15. The method according to any of claims 11-13, wherein the not receiving the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel comprises:

and if the delay parameter is not predefined and the network equipment does not configure the delay parameter for the terminal equipment, the network equipment does not receive the SRS conflicted with the uplink shared physical channel and/or the uplink control physical channel.

16. The method according to any one of claims 11-13, further comprising:

if the first SRS information is the same as the second SRS information, the network device does not receive the SRS conflicting with the uplink shared physical channel and/or the uplink control physical channel.

17. The method according to claim 12 or 13, wherein the delay parameter is a delay time unit, and the delaying receiving the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel comprises:

determining a first time unit for receiving an SRS colliding with the uplink shared physical channel and/or the uplink control physical channel;

and determining a second time unit according to the first time unit and the delay time unit, and receiving, by the network equipment, the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel in the second time unit.

18. The method of claim 11,

19. The method of claim 11,

20. The method of claim 11,

21. A communications apparatus, comprising: a memory and a processor, the memory storing computer-executable instructions;

the processor executes computer-executable instructions stored by the memory to cause the communication device to perform the method of any of claims 1-10.

22. A communications apparatus, comprising: a memory and a processor, the memory storing computer-executable instructions;

the processor executes computer-executable instructions stored by the memory to cause the communication device to perform the method of any of claims 11-20.

23. A communication system, comprising: a communication device as claimed in claim 21 and a communication device as claimed in claim 22.

24. A computer-readable storage medium storing a computer program or instructions for causing a computer to perform the method of any one of claims 1-10 when the computer program or instructions is run on the computer.

25. A computer-readable storage medium storing a computer program or instructions for causing a computer to perform the method of any one of claims 11-20 when the computer program or instructions is run on the computer.