CN111756661B - Communication method, device, system and storage medium - Google Patents

Abstract

Embodiments of the present application provide a communication method, apparatus, system, and storage medium. The method includes: a terminal device receives first downlink control information from a network device, where the first downlink control information includes first SRS information; Receive the second downlink control information, where the second downlink control information includes the second SRS information; if the first SRS information and the second SRS information are different, the terminal device does not send or delays sending the physical channel shared with the uplink and/or the uplink control physical channel The conflicting SRS, the SRS conflicting 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. By configuring different SRS information in the downlink control information, the terminal delays sending the SRS, thereby increasing the chance of sending the SRS, so that the network device obtains more SRS to accurately estimate the uplink channel quality.

Description

Communication method, device, system and storage medium

technical field

The embodiments of the present application relate to communication technologies, and in particular, to a communication method, apparatus, system, and storage medium.

Background technique

In a long term evolution (long term evolution, LTE) communication system, a network device uses a sounding reference signal (Sounding Reference Signal, SRS) reported by a terminal to estimate uplink channel quality in different frequency bands. In this way, the network device can configure a subframe for uplink transmission (referred to as: uplink subframe) for the terminal in a frequency band with good quality, so as to ensure the performance of the uplink.

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

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

SUMMARY OF THE INVENTION

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

In a first aspect, an embodiment of the present application provides a communication method, which can be applied to a terminal device or a chip in the terminal device. The method is described below by taking the application to a terminal device as an example. In this 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 device receives first downlink control information from a network device. The device receives second downlink control information from the network device, where the second downlink control information includes second SRS information; if the first SRS information and the second SRS information are different, the terminal device does not send or Delay sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel, the SRS that collides 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 The second SRS corresponding to the second SRS information.

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

In the above method, by setting different SRS information in the first downlink control information and the second downlink control information, that is, the first SRS information and the second SRS information are different. The difference between the first SRS information and the second SRS information does not mean that the terminal device does not send an SRS that collides with the uplink shared physical channel and/or the uplink control physical channel, but instructs the terminal device to make a decision not to send or to delay sending and uplink. SRS for shared physical channel and/or uplink control physical channel collision. This further increases the opportunity for the terminal device to send SRS, so that the network device acquires more SRS to accurately estimate the uplink channel quality.

Optionally, the first SRS information is a first field, the second SRS information is a second field, and the difference between the first SRS information and the second SRS information is: the field value of the first field and the field value of the second field is different.

In a possible design, the delaying the sending of the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel includes: according to a delay parameter, the terminal device delays sending the SRS that collides with the uplink shared physical channel and/or the uplink shared physical channel and/or SRS for uplink control physical channel collision.

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

A possible implementation manner in which the network device configures the delay parameter for the terminal device is: the delay parameter is configured in the RRC signaling. The terminal device delays sending the SRS that collides 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 manner is: the delay parameter is configured in the downlink control information. Optionally, the terminal device determines the later downlink control information in the first downlink control information and the second downlink control information, and delays sending the physical channel shared with the uplink according to the delay parameter configured in the later downlink control information. and/or uplink control physical channel collision SRS.

Another possible implementation manner is: the SRS parameter set included in the RRC signaling is configured with a delay parameter. Optionally, the terminal device determines the later SRS information in the first SRS information and the second SRS information according to the first SRS information and the second SRS information, and obtains the delay parameter corresponding to the later SRS information in the SRS parameter set, The SRS that collides with the uplink shared physical channel and/or the uplink control physical channel is delayed according to the delay parameter.

The first SRS information is also used to indicate the delay parameter, and the first downlink control information is later than the second downlink control information in the time domain; or, the second SRS information is also used to Indicates the delay parameter, and the second downlink control information is later than the first downlink control information in the time domain.

Optionally, the delay parameter is a delay time unit, and the delay in sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel includes: determining the SRS for sending the uplink shared physical channel and/or the uplink shared physical channel. or the first time unit of the SRS that collides with the uplink control physical channel; according to the first time unit and the delay time unit, determine a second time unit, and on the second time unit, the terminal device sends the SRS that collide with the uplink shared physical channel and/or the uplink control physical channel.

In a 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 the physical channel shared with the uplink and/or the uplink control SRS for physical channel collision.

In a possible design, if the first SRS information and the second SRS information are the same, the terminal device does not send an SRS that collides with the uplink shared physical channel and/or the uplink control physical channel.

In the above method, a delay parameter is pre-defined or a delay parameter is configured for the terminal device by the network device, so that when the first SRS information and the second SRS information are different, the terminal device delays according to the delay parameter. Sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel has achieved the purpose of increasing the opportunity of the terminal equipment to send the SRS.

In a possible design, the first SRS information is used to instruct the terminal device not to send the first SRS; or,

The first SRS information is used to indicate the first SRS parameter set and/or the second SRS parameter set, where the first SRS parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit, the second SRS parameter set The SRS parameter set is: the parameter set of the SRS sent on the last symbol of the time unit; or,

The first SRS information is used to refer to the third SRS parameter set, where the third SRS parameter set is: the parameter set of the SRS sent on any symbol of the time unit.

or,

The second SRS information is used to instruct the terminal device not to send the first SRS; or,

The second SRS information is used to indicate the first SRS parameter set and/or the second SRS parameter set, where the first SRS parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit, the second SRS parameter set The SRS parameter set is: the parameter set of the SRS sent on the last symbol of the time unit; or,

The second SRS information is used to refer to the third SRS parameter set, where the third SRS parameter set is: the parameter set of the SRS sent on any symbol of the time unit.

In this design, the terminal may be instructed to send or not to send 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 instructing the terminal device to send the SRS information, the terminal device may acquire SRS parameters corresponding to the first SRS and/or the second SRS information in the SRS parameter set. And the design can include parameter sets of different types of SRS, and the different types of SRS refer to the SRS sent on the non-last symbol of the time unit, the SRS sent on the last symbol of the time unit, or the SRS sent on the last symbol of the time unit. The transmitted SRS on any one symbol.

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

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 terminal device determines the SRS antenna selection mode according to the following formula 1:

Among them, T _SRS is the period that the terminal device sends the SRS, T _offset is the SRS subframe level offset, T _{offset_max} is the maximum value of the subframe level offset T _offset , n _s is the slot number, n _f is the subframe (subframe) number, Nsp is the special subframe number, N _SrsConfig is the number of SRS configurations of the terminal equipment, n _SrsConfig ={0,...N _SrsConfig -1} is the index of the number of SRS configurations, n _SrsConfig follows According to 3GPP TS36.213V15.5.0 Section 8.2 ISRS increases in order.

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

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

Optionally, the first parameter is used to enable the terminal device to select a first SRS antenna, the second parameter is used to enable the terminal device to select a second SRS antenna, and the first SRS antenna The selection corresponding to the selection time is less than the 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, the following formula 2 is used to determine the SRS antenna selection mode.

Among them, T _SRS is the period that the terminal device sends the SRS, T _offset is the SRS subframe level offset, T _{offset_max} is the maximum value of the subframe level offset T _offset , n _s is the slot number, n _f is the subframe number, and Nsp is the special subframe number.

In this design, the network equipment enables the terminal equipment to perform SRS antenna selection through parameter configuration, so that the terminal equipment determines the SRS antenna selection mode suitable for the terminal equipment according to the parameters configured by the network equipment, so as to improve the performance of the terminal to send SRS.

The communication method of the SRS antenna selection mode in this design may not depend on the communication methods in other possible designs of the above first aspect, and may be implemented as an independent communication method. For the communication method of the SRS antenna selection mode in this design, reference may be made to the relevant description in the first aspect above.

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

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

Optionally, the first SRS information is a first field, the second SRS information is a second field, and the difference between the first SRS information and the second SRS information is: the field value of the first field and the field value of the second field is different.

In a possible design, the delaying in receiving the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel includes: according to a delay parameter, the network device delays receiving the SRS that collides with the uplink shared physical channel and/or the uplink shared physical channel and/or SRS for uplink control physical channel collision.

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

A possible implementation manner in which the network device configures the delay parameter for the terminal device is: the delay parameter is configured in the RRC signaling. The network device delays receiving the SRS colliding 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 manner is: the delay parameter is configured in the downlink control information. Optionally, the network device determines the later downlink control information in the first downlink control information and the second downlink control information, and delays receiving the physical channel shared with the uplink according to the delay parameter configured in the later downlink control information. and/or uplink control physical channel collision SRS.

Another possible implementation manner is: the SRS parameter set included in the RRC signaling is configured with a delay parameter. Optionally, the network device determines the later SRS information in the first SRS information and the second SRS information according to the first SRS information and the second SRS information, and obtains the delay parameter corresponding to the later SRS information in the SRS parameter set, According to the delay parameter, the reception of the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel is delayed.

The first SRS information is also used to indicate the delay parameter, and the first downlink control information is later than the second downlink control information in the time domain; or, the second SRS information is also used to Indicates the delay parameter, and the second downlink control information is later than the first downlink control information in the time domain.

Optionally, the delay parameter is a delay time unit, and the delay in receiving an SRS that collides with the uplink shared physical channel and/or the uplink control physical channel includes: determining the SRS for receiving and/or receiving the uplink shared physical channel and/or the uplink control physical channel. or the first time unit of the SRS that collides with the uplink control physical channel; according to the first time unit and the delay time unit, determine a second time unit, and receive the uplink and the uplink on the second time unit SRS for shared physical channel and/or uplink control physical channel collision.

In a 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 uplink shared physical channel and/or uplink control SRS for physical channel collision.

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

In a possible design, the first SRS information is used to instruct the terminal device not to send the first SRS; or,

The first SRS information is used to indicate the first SRS parameter set and/or the second SRS parameter set, where the first SRS parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit, the second SRS parameter set The SRS parameter set is: the parameter set of the SRS sent on the last symbol of the time unit; or,

The first SRS information is used to refer to the third SRS parameter set, where the third SRS parameter set is: the parameter set of the SRS sent on any symbol of the time unit. or,

The second SRS information is used to instruct the terminal device not to send the first SRS; or,

The second SRS information is used to indicate the first SRS parameter set and/or the second SRS parameter set, where the first SRS parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit, the second SRS parameter set The SRS parameter set is: the parameter set of the SRS sent on the last symbol of the time unit; or,

The second SRS information is used to refer to the third SRS parameter set, where the third SRS parameter set is: the parameter set of the SRS sent on any symbol of the time unit.

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 the SRS antenna according to the first parameter, the second parameter and the third parameter A mode is selected, and the SRS is transmitted according to the SRS antenna selection mode.

Optionally, the terminal device may determine the SRS antenna selection mode according to the following formula 1:

Among them, T _SRS is the period that the terminal device sends the SRS, T _offset is the SRS subframe level offset, T _{offset_max} is the maximum value of the subframe level offset T _offset , n _s is the slot number, n _f is the subframe (subframe) number, Nsp is the special subframe number, N _SrsConfig is the number of SRS configurations of the terminal equipment, n _SrsConfig ={0,...N _SrsConfig -1} is the index of the number of SRS configurations, n _SrsConfig follows According to 3GPP TS36.213V15.5.0 Section 8.2 ISRS increases in order.

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

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

Optionally, the first parameter is used to enable the terminal device to select a first SRS antenna, the second parameter is used to enable the terminal device to select a second SRS antenna, and the first SRS antenna The selection corresponding to the selection time is less than the 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 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 determines the SRS antenna selection mode according to the following formula 2: :

Among them, T _SRS is the period that the terminal equipment sends SRS, T _offset is the SRS subframe level offset, T _{offset_max} is the maximum value of the subframe level offset T _offset , n _s is the slot number, n _f is the subframe number, and Nsp is the special subframe number.

The communication method of the SRS antenna selection mode in this design may not depend on the communication method in other possible designs of the second aspect above, and may be implemented as an independent communication method. For the communication method of the SRS antenna selection mode in this design, reference may be made to the relevant description in the above-mentioned second aspect.

For the beneficial effects of the method provided by the above-mentioned second aspect, reference may be made to the beneficial effects brought about by the above-mentioned first aspect, which will not be repeated here.

In a third aspect, an embodiment of the present application provides a communication device, where the communication device includes: a transceiver and a processor. in,

A transceiver, configured to receive first downlink control information from a network device, where the first downlink control information includes 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 send or delay sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel if the first SRS information and the second SRS information are different, the uplink shared physical channel And/or the SRS that collides with 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.

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

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

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

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

Optionally, the delay parameter is a delay time unit.

The processor is specifically configured to determine a first time unit for sending an SRS that collides with the uplink shared physical channel and/or the uplink control physical channel; according to the first time unit and the delay time unit, determine a second time unit time unit, and in the second time unit, the terminal device sends the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel.

Optionally, the first SRS information is used to instruct the terminal device to send the first SRS, and the first SRS is the SRS sent in the first time unit, and the second downlink control information is used to send the first SRS. Instruct the terminal device to send 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 send the uplink shared physical channel and/or the uplink control physical channel in the first time unit; The uplink shared physical channel and/or the uplink control physical channel are sent on the uplink, the second SRS information is used to instruct the terminal device to send the second SRS, and the second SRS is sent on the first time unit SRS.

Optionally, the first SRS information is a first field, the second SRS information is a second field, and the difference between the first SRS information and the second SRS information is: the field value of the first field and the field value of the second field is different.

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

The first SRS information is used to indicate the first SRS parameter set and/or the second SRS parameter set, where the first SRS parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit, the second SRS parameter set The SRS parameter set is: the parameter set of the SRS sent on the last symbol of the time unit; or,

The first SRS information is used to refer to the third SRS parameter set, where the third SRS parameter set is: the parameter set of the SRS sent on any symbol of the time unit.

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

The processor is configured to receive and transmit the SRS according to the SRS antenna selection mode.

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

For the beneficial effects of the communication device provided by the embodiments of the present application, reference may be made to the beneficial effects brought about by the first aspect, and details are not described herein.

In a fourth aspect, an embodiment of the present application provides a communication device, where the communication device includes: a transceiver and a processor. in,

a transceiver, 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.

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 and the second SRS information are different, the And/or the SRS that collides with the uplink control physical channel is the SRS corresponding to the first SRS information or the SRS corresponding to the second SRS information.

Optionally, the processor is specifically configured to delay, according to a delay parameter, the network device receiving an SRS that collides 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 for the terminal device.

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

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

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

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

Optionally, the first SRS information is used to instruct the terminal device to send the first SRS, and the first SRS is the SRS sent in the first time unit, and the second downlink control information is used to send the first SRS. instructing the terminal device to send the uplink shared physical channel and/or the uplink control physical channel on the first time unit; or,

The first downlink control information is used to instruct the terminal device to send the uplink shared physical channel and/or the uplink control physical channel in the first time unit, and the second SRS information is used to instruct the terminal device to send the A second SRS, and the second SRS is the SRS sent on the first time unit.

Optionally, the first SRS information is a first field, the second SRS information is a second field, and the difference between the first SRS information and the second SRS information is: the field value of the first field and the field value of the second field is different.

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

The first SRS information is used to indicate the first parameter set and/or the second parameter set, where the first parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit, and the second parameter set is : the parameter set of the SRS sent on the last symbol of the time unit; or,

The first SRS information is used to refer to the third parameter set, where the third parameter set is: the parameter set of the SRS sent on any symbol of the inter unit.

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

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

In a fifth aspect, an embodiment of the present application provides a communication device, the communication device includes: a processor, a memory, and a transceiver; the transceiver is coupled to the processor, and the processor controls the transceiver to transmit and receive action;

The memory is used for storing computer executable program codes, and the program codes include instructions; when the processor executes the instructions, the instructions cause the communication apparatus to execute the communication method provided by the first aspect or each possible design of the first aspect.

In a sixth aspect, an embodiment of the present application provides a communication device, the communication device includes: a processor, a memory, and a transceiver; the transceiver is coupled to the processor, and the processor controls the transceiver to transmit and receive action;

The memory is used for storing computer executable program codes, and the program codes include instructions; when the processor executes the instructions, the instructions cause the communication apparatus to execute the communication method provided by the second aspect or each possible design of the second aspect.

In a seventh aspect, an embodiment of the present application provides a communication device, including a unit, a module, or a circuit for executing the method provided by the above first aspect or each possible design of the first aspect. The communication apparatus may be a terminal device, or may be a module applied to the terminal device, for example, may be a chip applied to the terminal device.

In an eighth aspect, an embodiment of the present application provides a communication device, including a unit, a module, or a circuit for executing the method provided by 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, may be a chip applied to the network device.

In a ninth aspect, an embodiment of the present application provides a communication device (eg, a chip), where a computer program is stored on the communication device, and when the computer program is executed by the communication device, the first aspect or the first aspect is implemented of each possible design provided by the method.

In a tenth aspect, an embodiment of the present application provides a communication device (eg, a chip), where a computer program is stored on the communication device, and when the computer program is executed by the communication device, the second aspect or the second aspect is implemented of each possible design provided by the method.

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

In a twelfth aspect, the embodiments of the present application provide a computer program product containing instructions, which, when executed on a computer, cause the computer to execute the method in the second aspect or various possible designs of the second aspect.

In a thirteenth aspect, an embodiment of the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium runs on a computer, the computer causes the computer to execute the above first aspect or the first aspect. methods in various possible designs.

In a fourteenth aspect, an embodiment of the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium runs on a computer, the computer causes the computer to execute the second aspect or the second aspect. methods in various possible designs.

In a fifteenth aspect, an embodiment of the present application provides a communication system, including the communication device in the above-mentioned third aspect and the communication device in the above-mentioned fourth aspect.

In the communication method, device, system, and storage medium provided by the embodiments of the present application, in the method, when the terminal determines that the PUSCH and the SRS collide according to the first downlink control information and the second downlink control information, the network device can set the first downlink control information Different SRS information is configured in the second downlink control information, that is, the first SRS information and the second SRS information are different. The difference between the first SRS information and the second SRS information does not mean that the terminal does not send the SRS that collides with the PUSCH, but instructs the terminal to decide not to send the SRS that collides with the PUSCH or to delay sending the SRS that collides with the PUSCH. The communication method in the embodiment of the present application increases the opportunity of the terminal to send the SRS that collides with the PUSCH, so that the network device obtains more SRS to accurately estimate the quality of the uplink channel.

Description of drawings

FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the application is applied;

Fig. 2 is a kind of SRS configuration schematic diagram in the prior art;

3 is a schematic diagram of another SRS configuration in the prior art;

FIG. 4 provides a communication method according to an embodiment of the present application;

Fig. 5 is a kind of schematic diagram of SRS and PUSCH conflict;

6 is a schematic flowchart of a terminal device not sending or delaying sending an SRS that collides 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 schematic flowchart of another communication method provided by 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 provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

FIG. 12 is a schematic structural diagram of a communication system provided by an embodiment of the present application.

Detailed ways

FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the present application is applied. As shown in FIG. 1 , the mobile communication system may include network equipment and terminal equipment. The terminal device is connected to the network device by wireless. FIG. 1 is only a schematic diagram, and the mobile communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, etc., which are not shown in FIG. 1 .

A network device is an access device that a terminal device wirelessly accesses to the mobile communication system, which can be a base station NodeB, an evolved base station eNodeB, a 5G mobile communication system, or a network in a new generation wireless (new radio, NR) communication system side, the network side in the future mobile communication system, the access node in the WiFi system, etc. The embodiments of the present application do not limit the specific technology and specific device form used by the network device.

The terminal equipment may also be referred to as a terminal terminal, user equipment (user equipment, UE), a mobile station (mobile station, MS), a mobile terminal (mobile terminal, MT), and the like. The terminal device can be a mobile phone (mobilephone), a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, an industrial control (industrial control) wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, wireless terminals in transportation safety , wireless terminals in smart cities, wireless terminals in smart homes, and the like.

Network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle; can also be deployed on water; can also be deployed in the air on aircraft, balloons and satellites. The embodiments of the present application do not limit the application scenarios of the network device and the terminal device.

Uplink data transmission can be performed between network equipment and terminal equipment through wireless channels. Since the wireless channel has frequency selective fading characteristics, that is, the fading characteristics in different frequency bands are different, the characteristics of the wireless channel will seriously affect the transmission performance of the uplink for transmitting uplink data. In order to overcome this problem, a network device in the prior art uses a sounding reference signal (sounding reference signal, SRS) sent by a terminal device to estimate the uplink channel quality in different frequency bands.

The following describes the trigger type for triggering the terminal device to send the SRS by taking the SRS (traditional SRS) in the existing LTE protocols Rel-8 to Rel-15 as an example. There are two trigger types, namely trigger type 0 and trigger type 1.

Wherein, trigger type 0: the radio resource control RRC high-level signaling sent by the network device to the terminal device triggers the terminal device to send the SRS, and trigger type 0 corresponds to the terminal device periodically sending the SRS. Wherein, configuration parameters such as time domain, frequency domain, and code domain for the terminal device to send the SRS are preconfigured by RRC high-layer signaling.

trigger type 1: Downlink control information (DCI) sent by the network device to the terminal device triggers the terminal device to send SRS, trigger type 1 corresponds to the SRS sent by the terminal device aperiodically, and a DCI can only trigger the terminal device to send it once SRS. The DCI is used for scheduling uplink transmission and downlink transmission, and 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. The time domain, frequency domain, code domain and other configuration parameters for the terminal equipment to send SRS aperiodically are also pre-configured by the RRC high-level signaling, wherein the RRC high-level signaling includes the SRS parameter set, and the SRS parameter set includes different fields corresponding to SRS configuration parameters. After receiving the DCI sent by the network device, the terminal device can obtain the field SRS request field in the DCI, determine the corresponding SRS configuration parameter in the SRS parameter set according to the 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, the field used to indicate the SRS trigger state occupies 2 bits in the DCI, and the field value corresponding to this field can be one of 00, 01, 10 or 11. either. Wherein, 00 indicates that the SRS triggering state is a non-triggering state, that is, it indicates that the terminal device does not send SRS; 01, 10 or 11 indicates that the SRS triggering state is a triggering state, that is, instructing the terminal device to send SRS. When the terminal device determines that the field in the DCI indicates to send the SRS, it can determine the time domain, frequency domain, code domain, etc. for sending the SRS according to the SRS parameter set preconfigured 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 1 is an example of the SRS parameter set configured in the RRC higher layer signaling.

Table I

field value describe 00 SRS not triggered 01 The first set of SRS parameters configured by RRC higher layer signaling 10 The second set of SRS parameters configured by RRC higher layer signaling 11 The third set of SRS parameters configured by RRC higher layer signaling

For example, when the DCI is DCI formats 0/1A/2B/2C/2D, when the field used to indicate the SRS trigger state occupies 1 bit in the DCI, the field value corresponding to this field can be either 0 or 1 . Wherein, 0 indicates that the SRS trigger state is a non-trigger state, that is, the terminal device is instructed not to send SRS; 1 indicates that the SRS trigger state is a trigger state, that is, the terminal device is instructed to send the SRS. When the terminal device determines that the field in the DCI indicates to send the SRS, it can determine the time domain, frequency domain, code domain, etc. for sending the SRS according to the SRS parameter set preconfigured in the RRC high-layer signaling. Table 2 is another example of the SRS parameter set configured in the RRC high layer signaling.

Table II

field value describe 0 SRS not triggered 1 SRS parameters configured by RRC higher layer signaling

DCI is used for scheduling uplink transmission and downlink transmission, and includes a field for indicating the SRS trigger status. In a communication system, network equipment usually schedules uplink transmission in bursts; and in the context of a sharp increase in the number of terminal equipment, network equipment often configures terminal equipment to perform aperiodic SRS transmission. In this way, the terminal device can receive multiple DCIs sent from the network device before sending the uplink and downlink data or the SRS on the subframe.

When the terminal device receives the DCI, if the field in the DCI indicates that the SRS trigger state is the trigger state, the terminal device can determine the subframe in which the SRS is sent, and the subframe in the subframe according to the SRS parameter set corresponding to the field in the RRC signaling. Symbol used to transmit SRS.

FIG. 2 is a schematic diagram of an SRS configuration in the prior art. As shown in FIG. 2 , in the prior art, in order to avoid the overlapping of transmission symbols of an uplink shared physical channel (Physical Uplink Shared Channel, PUSCH) or an uplink control physical channel (Physical Uplink Control Channel, PUCCH) and a symbol used for sending a traditional SRS, The network device is usually configured to send the legacy SRS on the last symbol of the subframe. The following description will be given by taking the collision of PUSCH and SRS as an example. The shaded part in FIG. 2 is the symbol used for sending traditional SRS, and the non-shaded part is the symbol used for sending PUSCH.

FIG. 3 is a schematic diagram of another SRS configuration in the prior art. In the prior art, in order to obtain more SRSs to accurately estimate the uplink channel quality, extended SRSs will be introduced in the LTE protocol Rel-16. The extended SRS may be configured on one or more symbols other than the last symbol of the subframe. This is indicated by the symbol of the black part in Figure 3. If the PUSCH transmission and the SRS transmission are performed on the same symbol in the same subframe, the symbols in the black part overlap with the symbols in the non-shaded part. The transmission of the PUSCH and the transmission of the extended SRS collide.

In order to ensure the correct transmission of the SRS in the prior art, the fields used to indicate the SRS trigger state in the DCI received before the subframe that triggers the SRS to be sent on the subframe must be the same. And when the transmission of the PUSCH and the transmission of the extended SRS collide, in order to ensure the accurate transmission of the PUSCH, the extended SRS that collides with the transmission of the PUSCH is directly discarded in the prior art, which cannot achieve the purpose of enhancing the SRS capacity and coverage. .

As shown in FIG. 3, the symbols used for transmitting the extended SRS and the symbols used for transmitting the PUSCH all overlap. It can be understood that at least one of the symbols used for transmitting the extended SRS and the symbols used for transmitting the PUSCH overlap, and The transmission of the PUSCH and the transmission of the extended SRS may collide. However, the practice in the prior art is to directly discard the extended SRS. As shown in FIG. 3 , both the traditional SRS and the extended SRS are configured on one subframe. It can be understood that, only the traditional SRS or the extended SRS may be configured on the subframe.

In order to solve the above problem, an embodiment of the present application provides a communication method. When the transmission of PUSCH and/or PUCCH and the transmission of SRS collide, different SRS information is configured in the two DCIs by the network device. Make the terminal device delay sending or not send SRS according to different SRS information in the two DCIs, thereby increasing the opportunity of the terminal device to send SRS, so as to achieve the purpose of obtaining more SRS by the network device to accurately estimate the uplink channel quality .

The communication methods in the embodiments of the present application can be applied to scenarios in which the transmission of extended SRS collides with transmission of PUSCH and/or PUCCH, and can also be applied to scenarios in which transmission of traditional SRS collides with transmission of PUSCH and/or PUCCH , it can also be applied in a scenario where both the transmission of the extended SRS and the traditional SRS collide with the transmission of the PUSCH and/or the PUCCH. It can be understood that, the communication method in this embodiment of the present application may also be used in a scenario where the transmission of other types of SRS collides with the transmission of the PUSCH and/or the PUCCH.

The communication method provided by the present application will be 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 provided by an embodiment of the present application. As shown in Figure 4, the communication method includes:

S101, a network device sends first downlink control information to a terminal device, where the first downlink control information includes first SRS information.

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

S102: The network device sends second downlink control information to the terminal device, where the second downlink control information includes second SRS information.

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

S103, if the first SRS information and the second SRS information are different, the terminal device does not send or delays sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel, and the SRS that collides with the uplink shared physical channel and /or the SRS that collides with the uplink control physical channel is the first SRS or the second SRS.

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

In the following embodiments, the conflict between the SRS and the uplink shared physical channel (hereinafter referred to as PUSCH for short) is used as an example for description.

The first SRS information and the second SRS information in the above are both "SRS information", and are used to instruct the terminal equipment to send or not to send SRS, and the "first" and "second" here are to distinguish the two " SRS Information". It should be understood that when the first SRS information is used to instruct the terminal device to send the SRS, the SRS sent by the terminal device is the first SRS. Similarly, when the second SRS information is used to instruct the terminal device to send the SRS, the SRS sent 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 to instruct the terminal device to send or not to send the SRS, and the information may be a field, a field value, or a value in the DCI. The other parameters used to instruct the terminal device to send or not to send SRS.

The above-mentioned first SRS information is different from the second SRS information, and the meanings indicated by the first SRS information and the second SRS information may be different. For example, the first SRS information is used to instruct the terminal device not to send the SRS, and the second SRS information is used to instruct the terminal device to send the SRS. or,

The first SRS information is 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 difference between the first SRS information and the second SRS information may be: the first field corresponding to the first SRS information is different from the second field corresponding to the second SRS information, for example, the first field is 00 , the second field is 01, then the first SRS information is different from the second SRS information, or, the first field is 10 and the second field is 01, then the first SRS information is different from the second SRS information; or, the first SRS information The difference between the information and the second SRS information may be that the meaning indicated by the first field corresponding to the first SRS information is different from the meaning indicated by the second field corresponding to the second SRS information. For example, the first field is 0, which is used to indicate that the terminal device does not Send SRS, the second field is 1, which is used to instruct the terminal device to send SRS, and the first SRS information is different from the second SRS information. or,

It can 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 difference between the first information and the second information may be the difference between the first parameter and the second parameter. different, or the meaning of the first parameter and the meaning of the second parameter are different.

In order to better describe the communication method in this application, the SRS parameter set included in the RRC signaling sent by the network device is first described.

In this embodiment of the present application, the network device may configure the parameter set of the extended SRS separately in the RRC signaling, or may add the parameter set of the extended SRS on the basis of the existing SRS parameter set. The SRS parameter set in the prior art is the traditional SRS parameter set. The parameter set of SRS is shown in Table 1 and Table 2 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 traditional SRS and the parameter set of the extended SRS. It can be understood that if other types of SRS collide with the PUSCH, the SRS parameter set in the RRC signaling may include parameter sets of other types of SRS. It should be understood that when the RRC signaling configures which type of SRS parameter set, the terminal device can send this type of SRS.

In order to enable the traditional SRS and the extended SRS to be sent on the same subframe, a triggering rule for triggering the traditional SRS and the extended SRS to be sent on the same subframe is also designed in this 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 including the traditional SRS parameter set and the extended SRS parameter set as an example.

The DCI contains SRS information, and the SRS information is used to instruct the terminal device to send or not to send the SRS. The SRS information in the DCI is used as a field, and the value of the field occupies 2 bits in the DCI for illustration. As shown in Table 3, the SRS information can be any one of 00, 01, 10 or 11. Among them, since the SRS parameter set includes the parameter set of the traditional SRS and the parameter set of the extended SRS, when the SRS information is 00, the SRS information is used to instruct the terminal equipment not to send the traditional SRS and the extended SRS; when the SRS information is 01, 10 or In any one of 11, the SRS information is used to instruct the terminal device to send the traditional SRS and/or the extended SRS, and the SRS information is also used to indicate the first parameter set and/or the second parameter set. Wherein, the first parameter set includes: configuration parameters of the SRS sent on the non-last symbol in the subframe, that is, the first parameter set is the parameter set of the extended SRS. The second parameter set includes: configuration parameters of the SRS sent on the last symbol of the subframe, that is, the second parameter set is the parameter set of the traditional SRS. Further, the terminal device may determine the time unit for sending the traditional SRS and the extended SRS according to the SRS parameter set. The time unit in this embodiment of the present application may be a subframe, an OFDM symbol, or a time slot (slot).

Table 3

The parameter sets of the traditional SRS and/or the parameter sets of the extended SRS corresponding to the different fields shown in Table 3 are two independent parameter sets. Although the SRS parameter set in Table 4 also includes the parameter set of the traditional SRS and/or the parameter set of the extended SRS, the difference from Table 3 is the third parameter set indicated by different SRS information in Table 4. The third parameter set includes: configuration parameters of the SRS sent on any symbol on the subframe, that is, the third parameter set is a set of the parameter set of the traditional SRS and/or the parameter set of the extended SRS. Optionally, the traditional SRS and/or extended SRS parameters configured by RRC high-layer signaling may include, but are not limited to, the number of time units for transmitting the traditional SRS and/or the extended SRS, the location of the time units, and the like.

Table 4

It can be understood that, when the SRS information is a field, the field value may also occupy 1 bit in the DCI. Table 5 shows the SRS parameter set included in the RRC signaling in the embodiment of the present application when the field value is 1 bit.

Table 5

In this embodiment of the present application, when the first SRS information is used to instruct the terminal device to send the first SRS, the terminal device may determine a time unit for sending the first SRS in the SRS parameter set according to the first SRS information. Similarly, when the second SRS information is used to instruct the terminal device to send the second SRS, the terminal device may determine a time unit for sending the second SRS in the SRS parameter set according to the second SRS information. 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.

Wherein, if the SRS collides with the PUSCH, the conflict in this embodiment of the present application means that the time unit for sending the SRS and the time unit for sending the PUSCH overlap in the time domain and/or the frequency domain. The time unit in this embodiment of the present application is at least one subframe, at least one OFDM symbol, or at least one time slot (slot). It should be understood that, in one DCI, the time units configured by the network device to send the SRS and the PUSCH may not overlap. In the embodiment of the present application, the time units used for sending the SRS and the PUSCH in the first downlink control information and the second downlink control information overlap (that is, the SRS and the PUSCH conflict) as an example for description.

The time units used for sending the SRS and the PUSCH overlap (that is, the SRS collides with the PUSCH). A possible scenario is: when the SRS colliding with the PUSCH is the first SRS corresponding to the first SRS information, the first SRS The information is used to instruct the terminal device to send the first SRS, and the first SRS is the SRS sent on the first time unit, and the second downlink control information is used to indicate that the first SRS is sent on the first time unit The PUSCH is sent. Optionally, in this case, the second information may be used to instruct the terminal device to send the second SRS, and the time unit for sending 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 send the second SRS.

In this scenario, the first SRS information is used to indicate the first SRS parameter set and/or the second SRS parameter set, where the first SRS parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit , the second SRS parameter set is: the parameter set of the SRS sent on the last symbol of the time unit; or, the first SRS information is used to refer to the third SRS parameter set, and the third SRS parameter set is: The parameter set of the transmitted SRS on any symbol of the time unit.

Wherein, when the second SRS information instructs the terminal device to send 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 SRS parameter set, the second SRS parameter set and the third SRS parameter set 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 sent in the first time unit, and the The second SRS information is used to instruct the terminal device to send the second SRS, and the second SRS is the SRS sent on the first time unit. Optionally, in this case, the first information may be used to instruct the terminal device to send the first SRS, and the time unit for sending 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 send the second SRS.

In this case, the second SRS information is used to indicate the first SRS parameter set and/or the second SRS parameter set, where the first SRS parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit , the second SRS parameter set is: the parameter set of the SRS sent on the last symbol of the time unit; or, the second SRS information is used to refer to the third SRS parameter set, and the third SRS parameter set is: The parameter set of the transmitted SRS on any symbol of the time unit.

Wherein, when the first SRS information instructs the terminal device to send 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 SRS parameter set, the second SRS parameter set and the third SRS parameter set may be the same as described above.

It should be noted that due to the conflict between the SRS and the PUSCH, it means that the time unit for sending the SRS and the time unit for sending the PUSCH overlap, which may be all or part of the overlap. In the embodiment of the present application, the terminal device does not send or delays sending the SRS that collides with the PUSCH, which may be that the terminal device does not send or delays sending all the SRS that overlap with the PUSCH. For example, FIG. 5 is a schematic diagram of the conflict between the SRS and the PUSCH. . Fig. 5 illustrates by taking the time unit as an OFDM symbol as an example. As shown in Fig. 5, the OFDM symbols used for transmitting PUSCH are the time units with positions 1 and 3 in the time domain (shaded with oblique lines in Fig. 5). Since the OFDM symbol for sending SRS is the time unit at positions 3 and 5 in the time domain (the checkered shading in FIG. 5 ), at this time, the time unit used for transmitting PUSCH and the time unit used for sending SRS is in this subframe. There is overlap with domain position 3. In this case, the terminal device does not send the SRS or delays sending the SRS on the time units whose time domain positions are 3 and 5 in the subframe.

Optionally, in this embodiment of the present application, the terminal device does not send or delays sending the SRS that collides with the PUSCH, which may be that the terminal device does not send or delays sending the SRS that overlaps with the PUSCH. For example, as shown in FIG. 5 , in this case, the terminal device does not send the SRS in the time unit whose time domain position is 3 in the subframe, or delays sending the SRS that should be sent in the time unit whose time domain position is 3 in the subframe. SRS.

It can be understood that, in this embodiment of the present application, the terminal device delays sending the SRS that overlaps with the PUSCH may be: the terminal device delays sending the SRS that overlaps with the PUSCH on a new time unit. Wherein, the new time unit may be a new subframe, or a new time slot or a new symbol.

For example, when the new time unit is a new subframe, the terminal device sends the SRS that overlaps with the PUSCH on the new subframe. Optionally, the new subframe may be the first subframe that meets the requirement for sending SRS after 4 ms of the subframe for sending the PUSCH in the time domain, and the subframe that meets the requirement for sending SRS may refer to the conditions in the prior art. Optionally, the SRS that overlaps with the PUSCH can also be sent on a new time slot or a new symbol, where the new time slot or new symbol can be the time slot or symbol in the subframe in which the PUSCH is sent, or Can be a slot or symbol in a new subframe.

It should be noted that the method in the embodiment of the present application can also be applied to a scenario where the terminal device receives multiple DCIs before sending the PUSCH. The above method can be adopted to not send or delay sending the SRS that collides with the PUSCH when the SRS and the PUSCH collide.

In the communication method provided by the embodiment of the present application, when the terminal device determines that the PUSCH and the SRS collide according to the first downlink control information and the second downlink control information, the network device may configure the configuration in the first downlink control information and the second downlink control information Different SRS information, that is, the first SRS information and the second SRS information are different. The difference between the first SRS information and the second SRS information does not mean that the terminal device does not send the SRS that collides with the PUSCH, but instructs the terminal device to decide not to send the SRS that collides with the PUSCH or to delay sending the SRS that collides with the PUSCH. The communication method in the embodiment of the present application increases the opportunity of the terminal device to send the SRS that collides with the PUSCH, so that the network device obtains more SRS to accurately estimate the quality of the uplink channel.

The following describes the communication method provided by the present application in a scenario where the terminal device does not send or delays sending the SRS that collides with the PUSCH in the embodiment of the present application.

In the embodiment of the present application, FIG. 6 is a schematic flowchart of a flow diagram of a terminal device not sending or delaying sending an SRS that collides with an uplink shared physical channel and/or an uplink control physical channel according to an embodiment of the present application. As shown in FIG. 6, wherein, the above S103 may include:

S1031 , if the first SRS information and the second SRS information are different, the terminal device delays sending the SRS colliding with the uplink shared physical channel and/or the uplink control physical channel according to a delay parameter.

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

The first SRS information in this embodiment of the present application is a first field, the second SRS information is a second field, and the difference between the first SRS information and the second SRS information is: The field value 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 shown in the field values in Table 3 and Table 4 above.

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

Wherein, if the delay parameter is predefined, that is, both the terminal device and the network device have known the delay parameter in advance. When the first SRS information and the second SRS information are different, the terminal device delays sending 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 delays sending the SRS colliding with the PUSCH according to the delay parameter may be: the terminal device determines a first time unit for sending the SRS colliding with the PUSCH. The terminal device can determine the time unit configured by the network device for sending the PUSCH according to the first downlink control information and the second downlink control information; according to the first SRS information, the second SRS information and the SRS parameters in the RRC signaling 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 are centrally determined. The time unit in which the time units used for PUSCH and SRS transmission overlap is the first time unit.

The terminal device determines a second time unit according to the first time unit and the delay time unit, and sends the SRS colliding with the PUSCH on the second time unit. Wherein, the second time unit may be the sum of the first time unit and the delay time unit. It is worth noting that, if the time unit obtained by the sum of the first time unit and the delay time unit does not satisfy the conditions for sending SRS, then determine the first time unit that satisfies the sending of SRS after the time unit obtained by the addition. , the first time unit that satisfies sending the SRS is the second time unit. The delay time unit in this embodiment of the present application may be any one of a delay subframe, a delay symbol, or a delay time slot.

Wherein, if the delay parameter is configured by the network device for the terminal device, the embodiments of the present application describe the manner in which the network device configures the delay parameter for the terminal device from the following aspects:

The first possible way: a delay parameter is configured in the RRC signaling, 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 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 same RRC signaling according to the delay parameter configured in the RRC signaling SRS for PUSCH collision. Or, the terminal device receives the first RRC signaling before receiving the first downlink control information, and receives the second RRC signaling before the second downlink control information. In the later RRC signaling, the SRS that collides with the PUSCH is delayed according to the delay parameter configured in the later RRC signaling.

The second possible way: the delay parameter is configured in the downlink control information, for example, the number of bits may be added in the downlink control information to indicate the delay parameter. The terminal device determines the later downlink control information in the first downlink control information and the second downlink control information, and delays sending the SRS colliding with the PUSCH according to the delay parameter configured in the later downlink control information.

Or, the network device only configures the delay parameter in the later downlink control information among 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 the time domain, and the terminal device controls according to the first downlink control information. The delay parameter in the information delays sending the SRS that collides with the PUSCH; or, the delay parameter is configured in the second downlink control information, and the second downlink control information is later than the first downlink control information in the time domain. Downlink control information, the terminal device delays sending the SRS that collides with the PUSCH according to the delay parameter in the second downlink control information.

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

As shown in Table 6 below, in this embodiment of the present application, a delay parameter can be configured in the SRS parameters corresponding to different field values in the SRS parameter set, that is, it indicates that the SRS information is used to indicate the SRS parameter (including the delay parameter) corresponding to the SRS parameter set. ). Or as shown in Table 7, delay parameters can also be independently configured in SRS parameters corresponding to different field values in the SRS parameter set, that is, indicating that the SRS information is used to indicate the SRS parameters and corresponding delay parameters corresponding to the SRS parameter set.

The terminal device determines, according to the first SRS information and the second SRS information, the later SRS information in the first SRS information and the second SRS information (that is, the later downlink control information in the first downlink control information and the second downlink control information). SRS information in ), obtain the delay parameter corresponding to the later SRS information in the SRS parameter set, and delay sending the SRS that collides 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 the time domain, the first SRS information is further used to indicate the delay parameter; or, the second downlink control information is in The time domain is later than the first downlink control information, and the second SRS information is further used to indicate the delay parameter.

As shown in Table 6 and Table 7 below, the delay parameters in the SRS parameters corresponding to field values 01, 10, and 11 are K1, K2, and K3, respectively. Optionally, K1, K2, and K3 may be the same or different.

Table 6

Table 7

Optionally, the delay parameter may also be configured in the SRS parameter corresponding to the later SRS information in the first SRS information and the second SRS information. In this way, according to the later SRS information, the delay parameter corresponding to the later SRS information is obtained from the SRS parameter set, and the SRS that collides with the PUSCH is delayed according to the delay parameter.

It can be understood that, the above three ways of configuring the delay parameter for the terminal device by the above-mentioned network device can be used either or in combination.

S1032, if the first SRS information and the second SRS information are different, and if the delay parameter is not predefined and the delay parameter is not configured for the terminal device by the network device, do not send the information shared with the uplink SRS for physical channel and/or uplink control physical channel collision.

Correspondingly, if 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, the network device does not receive the delay parameter. SRS for uplink shared physical channel and/or uplink control physical channel collision.

In the embodiment of the present 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 If the device does not configure the delay parameter in the SRS parameter set of RRC signaling, downlink control information or RRC signaling, so that the terminal device cannot obtain the delay parameter, the SRS that collides with the PUSCH will not be sent.

It should be understood that S1031 and S1032 in this embodiment of the present application are not distinguished in order, and one of the two may be selected for execution.

Optionally, in this embodiment of the present application, if the first SRS information and the second SRS information are the same, in this scenario and the prior art, in order to ensure the transmission of the SRS, the SRS information configured in each DCI must be If the same scenario is the same, the terminal device does not send the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel.

In this embodiment of the present application, a predefined delay parameter or a delay parameter configured by the network device for the terminal device is used to enable the terminal device to delay sending the SRS conflicting with the uplink shared physical channel and/or the uplink control physical channel according to the delay parameter, and further The opportunity for SRS transmission is increased, and the network device obtains more SRS to accurately estimate the uplink channel quality. Further, the network device can configure the delay parameter in the RRC signaling, or configure the delay parameter in the downlink control system information, or configure the delay parameter in the SRS parameter set of the RRC signaling, so that the terminal device can obtain the delay parameter, and then delay the transmission. The purpose of the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel.

The embodiment of the present application also provides a communication method, which is applied in a scenario of antenna selection for a terminal device to send an SRS. In the prior art, the terminal device transmits the SRS by using a fixed antenna selection mode. For example, taking a terminal device with one transmit antenna and two receive antennas (1T2R) as an example, for example, when the terminal device transmits SRS, the same antenna performs repeated channel sounding (Sounding) working mode. In this way, for the terminal in the edge area of the serving cell, the quality of the SRS sent by the same antenna can be improved; but for the terminal in the edge area of the serving cell, it is inconvenient for the terminal equipment to quickly send the SRS on all antennas. The transmission period is long, so that the network device cannot quickly schedule the uplink transmission and the downlink transmission according to the SRS.

In order to solve the above problem, an embodiment of the present application provides a communication method, in which a terminal device selects an antenna selection mode for sending SRS according to parameters configured by a network device, thereby improving the performance of the terminal for sending SRS.

FIG. 7 is a schematic flowchart of another communication method provided by an embodiment of the present application. The execution subject of the communication method may be a terminal device. As shown in Figure 7, the communication method includes:

S201: The network device sends a first parameter to a terminal device, where the first parameter is used to indicate an SRS antenna selection mode of the terminal device.

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

It should be understood that the SRS antenna selection mode indicated by the first parameter in the embodiment of the present application is for the terminal device to perform fast SRS antenna selection. Optionally, the first parameter may be configured by the network device to the terminal 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 can be obtained according to the following formula 1.

Among them, T _SRS is the period that the terminal device sends the SRS, T _offset is the SRS subframe level offset, T _{offset_max} is the maximum value of the subframe level offset T _offset , n _s is the slot number, n _f is the subframe (subframe) number, Nsp is the special subframe number, N _SrsConfig is the number of SRS configurations of the terminal equipment, n _SrsConfig ={0,...N _SrsConfig -1} is the index of the number of SRS configurations, n _SrsConfig follows According to 3GPP TS36.213V15.5.0 Section 8.2 ISRS increases in order.

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

Optionally, when the network device does not configure at least one of the above three parameters for the terminal device, the terminal device can obtain the SRS antenna selection mode according to the following formula 2.

Among them, T _SRS is the period that the terminal device sends the SRS, T _offset is the SRS subframe level offset, T _{offset_max} is the maximum value of the subframe level offset T _offset , n _s is the slot number, n _f is the subframe number, and Nsp is the special subframe number.

It should be understood that the above formula 1 and formula 2 may be predefined. S202, the terminal device sends 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 (such as an OFDM symbol, a subframe, a special subframe, etc.) and an antenna port for transmitting the SRS. The terminal sends the SRS according to the SRS antenna selection mode, that is, the terminal sends the SRS on the determined time unit through the antenna port.

For the convenience of description, the following describes the SRS antenna selection mode determined by the terminal device according to the first parameter in the form of a table. It should be understood that the table is only one example form.

It should be understood that the use of 2 bits to represent the first parameter in Table 8 is an example, and other methods (for example, 1 bit) may also be used to represent the first parameter. Among them, each of the SRS antenna selection modes shown in Table 8 corresponds to: the terminal device transmits the pattern pattern of the antenna ports used by the SRS on different time units (such as OFDM symbols, subframes, special subframes, etc.), or order, etc.

Table 8

first parameter describe 00 First Antenna Mode 01 Second Antenna Mode 10 Third Antenna Mode 11 reserved

The following describes the SRS antenna selection mode acquired by the terminal. Wherein, the time unit for sending the SRS is a special subframe, for example, an uplink pilot time slot (uplink pilot time slot, UpPTS) as an example for description. In the embodiment of the present application, the network device configures 6 SRS symbols (that is, symbols used for sending SRS) in the UpPTS for the terminal device to send the SRS.

A possible way is: the antenna selection mode obtained by the above formula 2 of the terminal equipment is: continuous sounding on the same antenna in 6 SRS symbols to improve the sounding performance and the quality of the SRS sent by the terminal equipment on the antenna. Optionally, this antenna selection mode is applicable to the terminal equipment located in the edge area of the serving cell, which can improve the quality of the SRS sent by the terminal equipment.

Among them, when the antenna configured by the terminal device is 1T2R or 2T4R, the antenna selection mode obtained by the terminal device can be shown in Table 9 below:

Table 9

Symbol 1, Symbol 2, Symbol 3 and Symbol 4 may be extended symbols in UpPTS, and Symbol 5 and Symbol 6 are traditional symbols in UpPTS. Wherein, k _SRS is a parameter for obtaining the antenna port, and the terminal device can determine the antenna for sending the SRS through this parameter. Frame(n _f ) is the identifier of the radio frame corresponding to the UpPTS for sending the SRS, and Frame(n _f +1) is a radio frame after the sending of Frame(n _f ). n _SRS is the identifier of the antenna port that transmits the SRS. The ports in Table 9 can be the antenna ports marked as 0 or 1. The following describes the antenna corresponding to the port identifier (for example, the antenna No. 0 is the antenna corresponding to the No. 0 port) . As shown in Table 9, in this scenario, for example, in the radio frame Frame(n _f ), the No. 0 antenna is controlled on 6 SRS symbols, and in the radio frame Frame(n _f +1), the 6 SRS symbols are controlled Controlling the continuous sounding of the No. 1 antenna on the symbol can improve the performance of the antenna sounding, so as to improve the quality of the SRS sent by the terminal device on the No. 0 antenna and the No. 1 antenna.

Among them, when the antenna configured by the terminal device is 1T4R, the antenna selection mode obtained by the terminal device can be as shown in Table 10 below:

For the 1T4R antenna, the terminal device can control the No. 0 antenna, No. 1 antenna, No. 2 antenna and No. 3 antenna respectively on the 6 SRS symbols for continuous sounding, so as to improve the terminal equipment's ability to play on No. 0 antenna, No. 1 antenna, No. 2 antenna and The quality of the SRS transmitted on antenna 3.

Table 10

Another possible way is: the antenna selection mode obtained by the terminal device according to the first parameter (as in the above formula 1) is: repeating sounding on two antennas in 6 SRS symbols to ensure the sounding performance and ensure that the terminal device sends SRS the quality of. Optionally, this antenna selection mode is applicable to the terminal equipment located in the first area of the edge area and the central area of the serving cell, and the use of this antenna selection mode can ensure the quality of the SRS sent by the terminal equipment.

Among them, when the antenna configured by the terminal device is 1T2R or 2T4R, the antenna selection mode obtained by the terminal device can be shown in Table 11 below:

Table 11

As shown in Table 11, in this scenario, for example, in the wireless frames Frame(n _f ) and Frame(n _f +1), the No. 0 antenna and No. 1 antenna are respectively controlled to repeatedly continue sounding on 6 SRS symbols. The sounding performance can be guaranteed to ensure the quality of the SRS sent by the terminal device on the No. 0 antenna and No. 1 antenna.

Wherein, when the antenna configured for the terminal device is 1T4R, the antenna selection mode acquired by the terminal device may be as shown in Table 12 below: a scenario with a relatively fast moving speed.

Table 12

As shown in Table 12, in this scenario, for example, in the radio frame Frame(n _f ), the No. 0 antenna and No. 1 antenna are controlled to repeatedly continue sounding on 6 SRS symbols, and the radio frame Frame(n _f +1 ), control the No. 2 antenna and No. 3 antenna to repeatedly continue sounding on 6 SRS symbols, which can ensure the performance of the sounding, so as to ensure the quality of the SRS sent by the terminal device on the No. 0 antenna and No. 1 antenna.

Another possible way is: the antenna selection mode obtained by the terminal device according to the first parameter (as in the above formula 1) is: repeating sounding on all antennas in 6 SRS symbols to reduce the sounding period and improve the transmission rate of the terminal device. SRS speed. Optionally, this antenna selection mode is suitable for terminal equipment located in the central area of the serving cell. Using this antenna selection mode can reduce the period of sounding and improve the speed at which terminal equipment sends SRS, so that network equipment can quickly schedule uplink and downlink according to SRS. transmission.

Among them, when the antenna configured by the terminal device is 1T2R or 2T4R, the antenna selection mode obtained by the terminal device can be as shown in Table 13 below:

Table 13

As shown in Table 13, in this scenario, for example, in the radio frame Frame(n _f ), all antennas in the terminal device, namely antenna No. 0 and antenna No. 1, are controlled on 6 SRS symbols, and the sounding is continued repeatedly. In order to enable each antenna to send SRS quickly, the period of antenna sounding is reduced, and the speed of terminal equipment sending SRS is improved.

Among them, when the antenna configured by the terminal device is 1T4R, the antenna selection mode obtained by the terminal device can be as shown in Table 14 below:

Table 14

As shown in Table 14, in this scenario, for example, in the radio frame Frame(n _f ) and in the radio frame Frame(n _f +1), all antennas in the terminal device are controlled on 6 SRS symbols, that is, 0 No. 1 antenna, No. 1 antenna, No. 2 antenna and No. 3 antenna, repeat continuous sounding, so that each antenna can send SRS quickly, reduce the period of antenna sounding, and improve the speed of terminal equipment sending SRS.

In the embodiment of the present application, the network device enables the terminal device to perform fast 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, so as to improve the performance of the terminal in sending SRS.

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 device involved in this embodiment may be the aforementioned terminal device, or may be a chip applied to the terminal device. The communication apparatus may be used to perform the actions of the terminal device in the above method embodiments. As shown in FIG. 8 , the communication apparatus may include: a transceiver module 11 and a processing module 12 . in,

The transceiver module 11 is 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.

The processing module 12 is configured to not send or delay sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel if the first SRS information and the second SRS information are different, the The SRS that collides with the 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.

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

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

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

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

Optionally, the delay parameter is a delay time unit.

The processing module 12 is specifically configured to determine a first time unit for sending the SRS conflicting with the uplink shared physical channel and/or the uplink control physical channel; according to the first time unit and the delay time unit, determine the first time unit two time units, and in the second time unit, the terminal device sends the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel.

Optionally, the first SRS information is used to instruct the terminal device to send the first SRS, and the first SRS is the SRS sent in the first time unit, and the second downlink control information is used to send the first SRS. Instruct the terminal device to send 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 send the uplink shared physical channel and/or the uplink control physical channel in the first time unit; The uplink shared physical channel and/or the uplink control physical channel are sent on the uplink, the second SRS information is used to instruct the terminal device to send the second SRS, and the second SRS is sent on the first time unit SRS.

Optionally, the first SRS information is a first field, the second SRS information is a second field, and the difference between the first SRS information and the second SRS information is: the field value of the first field and the field value of the second field is different.

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

The first SRS information is used to indicate the first SRS parameter set and/or the second SRS parameter set, where the first SRS parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit, the second SRS parameter set The SRS parameter set is: the parameter set of the SRS sent on the last symbol of the time unit; or,

The first SRS information is used to refer to the third SRS parameter set, where the third SRS parameter set is: the parameter set of the SRS sent on any symbol of the time unit.

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

The processing module 12 is configured to receive and transmit the SRS according to the SRS antenna selection mode.

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

Wherein, the antenna selection mode index is used to indicate the working mode of the antenna and the identifier of the antenna.

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

FIG. 9 is a schematic structural diagram of another communication apparatus provided by an embodiment of the present application. As shown in FIG. 9 , the communication device involved in this embodiment may be the aforementioned network device. The communication apparatus may be used to perform the actions of the terminal device in the above method embodiments. As shown in FIG. 9 , the communication apparatus may include: a transceiver module 21 and a processing module 22 . in,

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.

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

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

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

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

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

Optionally, the processing module 22 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 and the second SRS information are the same.

Optionally, the processing module 22 is specifically configured to determine a first time unit for receiving an SRS conflicting with the uplink shared physical channel and/or the uplink control physical channel; according to the first time unit and the delay time unit, determining a second time unit, and in the second time unit, the network device receives the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel.

Optionally, the first SRS information is used to instruct the terminal device to send the first SRS, and the first SRS is the SRS sent in the first time unit, and the second downlink control information is used to send the first SRS. instructing the terminal device to send the uplink shared physical channel and/or the uplink control physical channel on the first time unit; or,

The first downlink control information is used to instruct the terminal device to send the uplink shared physical channel and/or the uplink control physical channel in the first time unit, and the second SRS information is used to instruct the terminal device to send the A second SRS, and the second SRS is the SRS sent on the first time unit.

Optionally, the first SRS information is a first field, the second SRS information is a second field, and the difference between the first SRS information and the second SRS information is: the field value of the first field and the field value of the second field is different.

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

The first SRS information is used to indicate the first parameter set and/or the second parameter set, where the first parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit, and the second parameter set is : the parameter set of the SRS sent on the last symbol of the time unit; or,

The first SRS information is used to refer to the third parameter set, where the third parameter set is: the parameter set of the SRS sent on any symbol of the inter 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 the SRS antenna selection mode of the terminal device.

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

The communication apparatus provided in the embodiment of the present application can perform the actions of the network device in the foregoing method embodiment, and the implementation principle and technical effect thereof are similar, and are not repeated here.

It should be noted that, it should be understood that the above transceiver module may be a transceiver, or include a transmitter and a receiver when actually implemented. The processing module can be implemented in the form of software calling through processing elements; it can also be implemented in the form of hardware. For example, the processing module may be a separately established processing element, or may be integrated into a certain chip of the above-mentioned device to be implemented, in addition, it may also be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element of the above-mentioned device Call and execute the function of the above processing module. In addition, all or part of these modules can be integrated together, and can also be implemented independently. The processing element described here may be an integrated circuit with signal processing capability. In the implementation process, each step of the above-mentioned method or each of the above-mentioned modules can be completed by an integrated logic circuit of hardware in the 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 (ASIC), or one or more digital microprocessors (digital) signal processor, DSP), or, one or more field programmable gate array (field programmable gate array, FPGA) and so on. For another example, when one of the above modules is implemented in the form of a processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can invoke program codes. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

FIG. 10 is a schematic structural diagram of still another communication apparatus provided by an embodiment of the present application. As shown in FIG. 10 , the communication device may include: a processor 51 (for example, a CPU), a memory 52, and a transceiver 53; the transceiver 53 is coupled to the processor 51, and the processor 51 controls the transceiver 53 to send and receive actions; the memory 52 may Including high-speed random-access memory (RAM) and possibly non-volatile memory (NVM), such as at least one disk memory, memory 52 may store various instructions for use in Complete various processing functions and implement the method steps of the present application. Optionally, the communication device involved in this application may further include: a power supply 54 , a communication bus 55 and a communication port 56 . The transceiver 53 may be integrated in the transceiver of the communication device, or may be an independent transceiver antenna on the communication device. The communication bus 55 is used to realize the communication connection between the elements. The above-mentioned communication port 56 is used to realize connection and communication between the communication device and other peripheral devices.

In this embodiment of the present application, the above-mentioned memory 52 is used to store computer-executable program codes, and the program codes include instructions; when the processor 51 executes the instructions, the instructions cause the processor 51 of the communication apparatus to execute the processing of the terminal device in the above method embodiments action, so that the transceiver 53 performs the sending and receiving action of the terminal device in the foregoing method embodiment, the implementation principle and technical effect are similar, and are not repeated here.

FIG. 11 is a schematic structural diagram of still another communication apparatus provided by an embodiment of the present application. As shown in FIG. 11 , the communication device may include: a processor 61 (for example, a CPU), a memory 62, and a transceiver 63; the transceiver 63 is coupled to the processor 61, and the processor 61 controls the transceiver 63 to transmit and receive; the memory 62 may Including high-speed random-access memory (RAM) and possibly non-volatile memory (NVM), such as at least one disk memory, memory 62 may store various instructions for use in Complete various processing functions and implement the method steps of the present application. Optionally, the communication device involved in 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 the transceiver of the communication device, or may be an independent transceiver antenna on the communication device. The communication bus 65 is used to realize the communication connection between the elements. The above-mentioned communication port 66 is used to realize connection and communication between the communication device and other peripheral devices.

In this embodiment of the present application, the above-mentioned memory 62 is used to store computer-executable program codes, and the program codes include instructions; when the processor 61 executes the instructions, the instructions cause the processor 61 of the communication device to perform the processing of the network device in the foregoing method embodiments. action, so that the transceiver 63 performs the sending and receiving action of the network device in the foregoing method embodiment, the implementation principle and technical effect thereof are similar, and are not repeated here.

An embodiment of the present application also provides a communication system. FIG. 12 is a schematic structural diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 12 , the communication system may include: a network device and a terminal device. The terminal device may be the communication device in FIG. 8 or FIG. 10 , which is used to perform the actions of the terminal device in the above embodiment; the network device may be the communication device in FIG. 9 or FIG. 11 , which is used for performing the above implementation. The actions of the network device in the example. The implementation principles and technical effects of the terminal device and the network device are similar, and are not repeated here.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the procedures or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored on or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center over a wire (e.g. coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center. A 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, or the like that includes an integration of one or more available media. Useful media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

The term "plurality" as used herein refers to two or more. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this article generally indicates that the related objects before and after are an "or" relationship; in the formula, the character "/" indicates that the related objects are a "division" relationship.

It can be understood that, the various numbers and numbers involved in the embodiments of the present application are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application.

It can be understood that, in the embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not imply the order of execution, and the execution order of each process should be determined by its functions and internal logic, rather than the implementation of the present application. The implementation of the examples constitutes no limitation.

Claims (25)

1. A communication method, characterized in that, applied to a terminal device, the method comprising: The terminal device receives first downlink control information from the network device, where the first downlink control information includes first SRS information; receiving, by the terminal device, second downlink control information from the network device, where the second downlink control information includes second SRS information; If the first SRS information and the second SRS information are different, the terminal device does not send or delays sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel, the /or the SRS that collides with 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 according to claim 1, wherein the delay in sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel comprises: According to the delay parameter, the terminal device delays sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel. 3. The method of claim 2, wherein The delay parameter is predefined or configured by the network device for the terminal device. 4. The method according to any one of claims 1-3, wherein, The first SRS information is further used to indicate a delay parameter, and the first downlink control information is later than the second downlink control information in the time domain; or, The second SRS information is further used to indicate the delay parameter, and the second downlink control information is later than the first downlink control information in the time domain. 5. The method according to any one of claims 1-3, wherein the not sending the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel comprises: 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 that collides with the uplink shared physical channel and/or the uplink control physical channel. 6. The method according to any one of claims 1-3, wherein the method further comprises: If the first SRS information and the second SRS information are the same, the terminal device does not send an SRS that collides 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 delay in sending the SRS conflicting with the uplink shared physical channel and/or the uplink control physical channel comprises: determining a first time unit for sending an SRS that collides with the uplink shared physical channel and/or the uplink control physical channel; According to the first time unit and the delay time unit, a second time unit is determined, and on the second time unit, the terminal device sends the physical channel shared with the uplink and/or the uplink control physical channel Conflicting SRS. 8. The method of claim 1, wherein: The first SRS information is used to instruct the terminal device to send the first SRS, and the first SRS is an SRS sent in a first time unit, and the second downlink control information is used to instruct the terminal The device sends the uplink shared physical channel and/or the uplink control physical channel on the first time unit; or, The first downlink control information is used to instruct the terminal device to send the uplink shared physical channel and/or the uplink control physical channel in the first time unit, and the second SRS information is used to instruct the terminal device to send the A second SRS, and the second SRS is the SRS sent on the first time unit. 9. The method of claim 1, wherein The first SRS information is a first field, the second SRS information is a second field, and the difference between the first SRS information and the second SRS information is: the field value of the first field and the first SRS information are different. The field values of the two fields are different. 10. The method of claim 1, wherein: The first SRS information is used to instruct the terminal device not to send the first SRS; or, The first SRS information is used to indicate the first SRS parameter set and/or the second SRS parameter set, where the first SRS parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit, the The second SRS parameter set is: the parameter set of the SRS sent on the 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: a parameter set of an SRS sent on any symbol of a time unit. 11. A communication method, characterized in that, applied to a network device, comprising: sending, by the network device, first downlink control information to the terminal device, where the first downlink control information includes first SRS information; sending, by the network device, second downlink control information to the terminal device, where the second downlink control information includes second SRS information; If the first SRS information and the second SRS information are different, the network device does not receive or delays receiving the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel, the /or the SRS that collides with 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 according to claim 11, wherein the delay in receiving the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel comprises: According to the delay parameter, the network device delays receiving the SRS that collides with the uplink shared physical channel and/or the uplink control physical channel. 13. The method of claim 12, wherein The delay parameter is predefined or configured by the network device for the terminal device. 14. The method according to any one of claims 11-13, wherein the method further comprises: The first SRS information is further used to indicate a delay parameter, and the first downlink control information is later than the second downlink control information in the time domain; or, The second SRS information is further used to indicate the delay parameter, and the second downlink control information is later than the first downlink control information in the time domain. 15. The method according to any one of claims 11-13, wherein the not receiving an SRS that collides with an uplink shared physical channel and/or an uplink control physical channel comprises: 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 that collides with the uplink shared physical channel and/or the uplink control physical channel. 16. The method of any one of claims 11-13, further comprising: If the first SRS information and the second SRS information are the same, the network device does not receive an SRS that collides 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 delay in receiving an SRS conflicting with an uplink shared physical channel and/or an uplink control physical channel comprises: determining a first time unit for receiving an SRS that collides with the uplink shared physical channel and/or the uplink control physical channel; Determine a second time unit according to the first time unit and the delay time unit, and the network device receives the physical channel shared with the uplink and/or the uplink control physical channel on the second time unit Conflicting SRS. 18. The method of claim 11, wherein The first SRS information is used to instruct the terminal device to send the first SRS, and the first SRS is an SRS sent in a first time unit, and the second downlink control information is used to instruct the terminal The device sends the uplink shared physical channel and/or the uplink control physical channel on the first time unit; or, The first downlink control information is used to instruct the terminal device to send the uplink shared physical channel and/or the uplink control physical channel in the first time unit, and the second SRS information is used to instruct the terminal device to send the A second SRS, and the second SRS is the SRS sent on the first time unit. 19. The method of claim 11, wherein: The first SRS information is a first field, the second SRS information is a second field, and the difference between the first SRS information and the second SRS information is: the field value of the first field and the first SRS information are different. The field values of the two fields are different. 20. The method of claim 11, wherein The first SRS information is used to instruct the terminal device not to send the first SRS; or, The first SRS information is used to indicate the first parameter set and/or the second parameter set, where the first parameter set is: the parameter set of the SRS sent on the non-last symbol of the time unit, the second parameter set The set is: the parameter set of the SRS sent on the last symbol of the time unit; or, The first SRS information is used to refer to a third parameter set, where the third parameter set is: a parameter set of the SRS sent on any symbol of the inter unit. 21. A communication device, comprising: a memory and a processor, wherein the memory stores computer-executed instructions; The processor executes computer-implemented instructions stored in the memory to cause the communication device to perform the method of any of claims 1-10. 22. A communication device, comprising: a memory and a processor, wherein the memory stores computer-executed instructions; The processor executes computer-implemented instructions stored in the memory to cause the communication device to perform the method of any of claims 11-20. 23. A communication system, characterized by comprising: the communication device according to claim 21 and the communication device according to claim 22. 24. A computer-readable storage medium, characterized in that it is used to store a computer program or an instruction, when the computer program or instruction is executed on a computer, the computer is made to execute any one of claims 1-10. Methods. 25. A computer-readable storage medium, characterized in that it is used to store a computer program or instruction, which, when the computer program or instruction is executed on a computer, causes the computer to execute any one of claims 11-20 Methods.

Images