WO2023011255A1

WO2023011255A1 - Rs transmission method and communication apparatus

Info

Publication number: WO2023011255A1
Application number: PCT/CN2022/107948
Authority: WO
Inventors: 刘晓晴; 余政; 张永平
Original assignee: 华为技术有限公司
Priority date: 2021-08-06
Filing date: 2022-07-26
Publication date: 2023-02-09
Also published as: CN115706640A

Abstract

Provided in the embodiments of the present application are an RS transmission method and a communication apparatus, for use in a wireless communication scenario. In the RS transmission method provided by the present application, first DCI acquired by a terminal device may comprise first information, the first information being information related to RS transmission. In addition, the first DCI may comprise CRC information and second information and, on the basis of the CRC information and/or the second information, the terminal device may determine that the first DCI further comprises third information or fourth information, and send the RS on the basis of the first information and/or the third information. Based on the present solution, the terminal device may identify other information included in the DCI in addition to that used for triggering an RS resource set. The third information related to RS transmission in the DCI is additionally indicated, and is different to the first information; on the basis of the first information and the third information, the terminal device sends the RS, further increasing the RS scheduling flexibility.

Description

RS transmission method and communication device

This application claims the priority of a Chinese patent application with application number 202110903395.6 and application title "RS transmission method and communication device" filed with the State Intellectual Property Office on August 6, 2021, the entire contents of which are hereby incorporated by reference in this application .

technical field

The present application relates to the field of communication technologies, and in particular to an RS transmission method and a communication device.

Background technique

In the fifth generation (5th generation, 5G) mobile communication technology New Radio (NR), the terminal device can send a sounding reference signal (SRS) to the base station, so that the base station can obtain the uplink information according to the SRS sent by the terminal device. channel information. The SRS resource set can be configured by the base station, and the transmission of the SRS can be triggered by the base station. For example, the base station can configure one or more resource sets for the terminal device, and can activate or trigger one or more SRS resource sets through signaling. An SRS resource set, so that the terminal device sends an SRS on the time-frequency resource corresponding to the SRS resource set. The SRS may include periodic SRS (periodic SRS, P-SRS), semi-persistent SRS (semi-persistent SRS, SP-SRS), aperiodic SRS (aperiodic SRS, AP-SRS), etc. For the AP-SRS resource set, the base station can trigger the AP-SRS resource set through downlink control information (DCI), for example, the AP-SRS resource set can be triggered through the SRS request (request) field of the DCI.

Wherein, when the base station triggers the AP-SRS through the DCI, it can also perform data scheduling on the terminal device or trigger channel-state information (channel-state information, CSI) reporting through the DCI. Correspondingly, the DCI includes an indication field related to data scheduling or CSI reporting. However, with the development of communication technologies, it may happen that when AP-SRS is triggered, data scheduling is not performed on the terminal equipment and CSI reporting is not triggered (that is, only AP-SRS is triggered). Therefore, when DCI triggers AP-SRS, the terminal device cannot distinguish whether the DCI only triggers AP-SRS, or triggers AP-SRS and also triggers data scheduling or triggers CSI reporting, and thus cannot determine whether the DCI indicates the transmission of AP-SRS. The specific meanings indicated by other fields other than the related fields of the SRS cannot be determined to interpret the other fields except the related fields indicating the transmission of the AP-SRS.

Contents of the invention

The embodiment of the present application provides an RS transmission method and a communication device, which are used to solve the problem of inability to determine whether the DCI is used to trigger the RS resource set without data scheduling in the prior art, resulting in the inability to determine the fields in the DCI except for the RS The specific meaning indicated by other fields than , causing the problem of ambiguous behavior of the end device.

In order to achieve the above object, the embodiments of the present application adopt the following technical solutions:

In the first aspect, a RS sending method is provided, and the communication device executing the RS sending method may be a terminal device; it may also be a module applied in the terminal device, such as a chip or a chip system. The following description is made by taking the execution subject as a terminal device as an example. The RS sending method may include: the terminal device may acquire first downlink control information DCI, the first DCI includes an RS request field, first information and second information, the RS request field is used to indicate the triggered RS resource set, the first The information is information related to RS transmission corresponding to the triggered RS resource set. Afterwards, the terminal device may determine, according to the cyclic redundancy check CRC information and/or the second information of the first DCI, that the first DCI further includes third information or fourth information, where the fourth information is related to data scheduling. Furthermore, the terminal device may send the RS according to the first information and/or the third information.

Based on this scheme, the terminal device can determine the third information or the fourth information included in the first DCI according to the CRC information and/or the second information of the first DCI, the third information can be used to send the RS, and the fourth information is related to the data Scheduling related. It can be seen that the terminal device can determine other information included in the first DCI except the field indicating the triggering RS resource set. Furthermore, the terminal device can perform corresponding actions according to other information to ensure correct RS transmission. In addition, since other information (such as the third information) can also be used to send the RS, the accuracy of RS transmission is improved.

With reference to the first aspect above, in a possible implementation manner, the first information may include one or more of the following information: available time slot information, transmit power control information, carrier indication information, uplink or supplementary uplink indication information, Partial bandwidth indication information. In this embodiment of the present application, the first information may be information necessary for the terminal device to send the RS. When an RS resource set is triggered, the terminal device needs to send the RS according to the first information.

With reference to the first aspect above, in a possible implementation manner, the terminal device determines that the first DCI also includes third information or fourth information according to the CRC information and/or the second information of the first DCI, which may include: the terminal device It may be determined that the first DCI further includes the third information when the CRC of the first DCI is scrambled by the first radio network temporary identifier RNTI and the second information belongs to the first set. Alternatively, the terminal device may determine that the first DCI further includes the fourth information when the CRC of the first DCI is scrambled by the first RNTI and the second information belongs to the second set. Alternatively, the terminal device may determine that the first DCI further includes the third information when the CRC of the first DCI is scrambled by the second RNTI and the second information belongs to the third set.

Based on this scheme, for the first DCI whose CRC information uses different scrambling methods, the terminal device can determine other information (third information or fourth information) included in the first DCI according to the CRC scrambling method and the content of the second information. ), this implementation utilizes a small part of the information of the first DCI (the scrambling method of the CRC of the first DCI and the second information) to determine other information included in the first DCI, and this solution is easy to implement.

With reference to the first aspect above, in a possible implementation manner, the terminal device determines that the first DCI also includes third information or fourth information according to the CRC information and/or the second information of the first DCI, which may include: the terminal device It may be determined that the first DCI further includes the third information when the second information belongs to the first set. Alternatively, the terminal device may determine that the first DCI further includes the fourth information when the second information belongs to the second set.

Based on this solution, the terminal device can determine other information included in the first DCI only according to the second information included in the first DCI without considering the scrambling method of the CRC of the first DCI. This solution is more convenient and can save DCI bit resources .

With reference to the first aspect above, in a possible implementation manner, the terminal device determines that the first DCI also includes third information or fourth information according to the CRC information and/or the second information of the first DCI, which may include: the terminal device It may be determined that the first DCI further includes fourth information when the CRC of the first DCI is scrambled by the second RNTI.

Based on this solution, when the CRC of the first DCI is scrambled by the second RNTI, the first DCI must include information related to data scheduling. That is, in this implementation manner, the first DCI whose CRC is scrambled by the second RNTI can only be used to trigger the RS resource set with data scheduling, and cannot be used to trigger the RS resource set without data scheduling.

With reference to the first aspect above, in a possible implementation manner, the first DCI includes the third information, and the first DCI is used to trigger an aperiodic RS resource set without data and without CSI. Alternatively, the first DCI includes the fourth information, and the first DCI is used to trigger the aperiodic RS resource set with data and/or with CSI.

In other words, in the solution of this embodiment of the present application, the first DCI includes the third information for sending RS, which is equivalent to the first DCI for aperiodic RS resources without data and without CSI (which can be collectively referred to as no-data scheduling) For the triggering of a set, the first DCI includes the fourth information related to data scheduling, which is equivalent to the first DCI for triggering aperiodic RS resource sets with data and/or with CSI.

With reference to the first aspect above, in a possible implementation manner, the first RNTI is a cell radio network temporary identifier (C-RNTI). The second RNTI includes one or more of the following: semi-static channel state information wireless network temporary identifier SP-CSI-RNTI, configured and scheduled wireless network temporary identifier CS-RNTI, modulation and coding mode cell wireless network temporary identifier MCS-C-RNTI .

With reference to the first aspect above, in a possible implementation manner, the third information includes one or more of the following information: available time slot information for RS transmission, time slot offset information, RS symbol-level time information, Time-domain behavior information of multiple symbols for RS transmission, a set of carrier information for RS transmission, frequency-domain resource information, partial bandwidth BWP information, power control information, space-domain parameter information, and RS trigger status information.

Based on this solution, the first DCI may include the above one or more pieces of information related to RS transmission, so that the terminal device can send the RS according to the first information and the third information, and the RS transmission is more accurate.

With reference to the foregoing first aspect, in a possible implementation manner, the first DCI may further include a first field. The first set may include: the bit state of the first field belongs to the first bit state set. The third set may include: the bit state of the first field belongs to the first set of bit states.

Based on this solution, the terminal device can determine according to the first field in the first DCI that the first DCI also includes third information or fourth information. The first field can be a newly added field, or it can be an existing field in the first DCI. field, and the first bit state set can also be defined by itself, so the flexibility of the solution is high. Moreover, when the CRC adopts different scrambling methods, the second information is the same, which reduces the processing complexity of the terminal device.

With reference to the first aspect above, in a possible implementation manner, the length of the CSI request field is 0 bits, and the first set may include: the bit state of the UL-SCH field is 0. If the length of the CSI request field is greater than 0 bits, the first set may include: the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0.

Based on this solution, the terminal device may determine that the first DCI further includes the third information or the fourth information according to the conditions of the UL-SCH field and/or the CSI request field, which is an optional implementation manner.

With reference to the foregoing first aspect, in a possible implementation manner, the first DCI may further include a first field. The first set may include: the bit state of the first field belongs to the first bit state set. The third set may include: the bit state of the UL-SCH field is 0, the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set. Or, the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the first field belongs to the first bit status set.

Based on this scheme, when the CRC of the first DCI adopts the first scrambling method, the terminal device can determine only according to the value of the first field that the first DCI also includes the third information or the fourth information, and when the CRC of the first DCI When the second scrambling method is adopted, the terminal device needs to determine according to the UL-SCH field, the CSI request field and the first field that the first DCI also includes the third information or the fourth information, which is an optional implementation.

With reference to the foregoing first aspect, in a possible implementation manner, the first DCI further includes a first field. The first set may include: the bit state of the UL-SCH field is 0, the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set. Or, the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the first field belongs to the first bit status set. The third set may include: the bit state of the first field belongs to the first set of bit states.

Based on this scheme, when the CRC of the first DCI adopts the first scrambling method, the terminal device needs to determine that the first DCI also includes the third information or the fourth information according to the conditions of the UL-SCH field, the CSI request field and the first field , and when the CRC of the first DCI adopts the second scrambling method, the terminal device can determine only according to the value of the first field that the first DCI also includes the third information or the fourth information, which is an optional implementation.

With reference to the foregoing first aspect, in a possible implementation manner, the first DCI may further include a first field. The first set may include: the bit state of the UL-SCH field is 0, the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set. Or, the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the first field belongs to the first bit status set. The third set may include: the bit state of the UL-SCH field is 0, the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set. Or, the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the first field belongs to the first bit status set.

Based on this solution, regardless of the scrambling method used for the CRC of the first DCI, the terminal device determines that the first DCI also includes the third information or the fourth information according to the UL-SCH field, the CSI request field, and the first field, is an optional implementation.

With reference to the first aspect above, in a possible implementation manner, the CRC of the first DCI is scrambled by the first RNTI, and the first DCI includes a first downlink assignment index field. The first set includes: the bit status of the UL-SCH field is 0, and the length of the CSI request field is 0 bits, and the bit status of the 1st downlink assignment index field is all 0; or, the bit status of the UL-SCH field is 0, and The bit status of the CSI request field is all 0, and the bit status of the 1st downlink assignment index field is all 0.

Based on this scheme, when the CRC of the first DCI is scrambled by the first RNTI, the first DCI can indicate the second information through the UL-SCH field, the request field in the CSI, and the 1st downlink assignment index field, which is an optional implementation Way. Adding an additional field indication can improve accuracy, and utilizing the existing field in the first DCI to indicate the second information can save signaling resources.

With reference to the first aspect above, in a possible implementation manner, the fourth information may include one or more of the following information: uplink shared channel UL-SCH indication information, channel state information CSI request information, frequency domain resource allocation FDRA information, time domain resource allocation TDRA information, frequency hopping FH identification information, MCS information, new data indicator new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink allocation index 1st downlink assignment index information, second downlink assignment indication 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information, demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, transmission power control command TPC command for scheduled PUSCH information of scheduled uplink shared channel, open loop power Control parameter set indication information and priority indication information.

With reference to the first aspect above, in a possible implementation manner, the third information may not include one or more of the following information: uplink shared channel UL-SCH indication information, channel state information CSI request information, frequency domain resources Allocation of FDRA information, time domain resource allocation TDRA information, frequency hopping FH identification information, MCS information, new data indicator new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink allocation index 1st downlink assignment index information, 2nd downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal Relationship PTRS-DMRS association information, beta beta bias indication information, demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC command for scheduled PUSCH information, open loop Power control parameter set indication information and priority indication information. The fourth information may not include one or more of the following information: available slot information for RS transmission, slot offset information, RS symbol-level time information, time-domain behavior information for RS transmission in multiple symbols, RS A set of transmitted carrier information, frequency domain resource information, partial bandwidth BWP information, power control information, space domain parameter information, and RS trigger status information.

With reference to the first aspect above, in a possible implementation manner, the format of the first DCI may be DCI format 0_1, and the first DCI may include a frequency domain resource allocation FDRA field and/or a frequency hopping FH field. The first set may include: the resource allocation type is the first allocation type, and the bit status of the FDRA field is all 0s. Alternatively, the resource allocation type is the second allocation type, and the bit status of the FDRA field is all 1s. Alternatively, the resource allocation type is the second allocation type, the bit state of the FDRA field belongs to the second bit state set, and the bit state of the FH field is 1, and the second bit state set is used to indicate that the resource allocation is full bandwidth measurement.

Based on this solution, the terminal device may also determine that the first DIC includes the third information or the fourth information according to the FDRA field and/or the FH field in the first DIC, which is an optional implementation manner. It should be understood that the bit states of the FDRA field are all 0s and all 1s are originally bit states that do not indicate information. This solution makes full use of idle bit states and can save signaling resources.

With reference to the first aspect above, in a possible implementation manner, the fourth information may include one or more of the following information: uplink shared channel UL-SCH indication information, channel state information CSI request information, time domain resource allocation TDRA information, MCS information, new data indicator new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink assignment index 1st downlink assignment index information, second downlink assignment instruction 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information, Demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC command for scheduled PUSCH information, open-loop power control parameter set indication information, priority indication information. It should be understood that, since the FDRA field and/or the FH field are used to determine that the first DIC also includes the third information or the fourth information, the fourth information does not include the FDRA field and/or the FH field.

With reference to the first aspect above, in a possible implementation manner, the third information may not include one or more of the following information: uplink shared channel UL-SCH indication information, channel state information CSI request information, time domain resources Assign TDRA information, MCS information, new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink assignment index 1st downlink assignment index information, second downlink assignment index 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information , demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC command for scheduled PUSCH information, open-loop power control parameter set indication information, priority indication information. The fourth information does not include one or more of the following information: available slot information for RS transmission, slot offset information, RS symbol-level time information, time-domain behavior information for RS transmission in multiple symbols, RS transmission A set of carrier information, frequency domain resource information, partial bandwidth BWP information, power control information, space domain parameter information, and RS trigger status information.

With reference to the first aspect above, in a possible implementation manner, sending the RS according to the first information and/or the third information may include: the first DCI also includes the third information, then sending the RS according to the first information and the third information RS. Alternatively, the first DCI further includes fourth information, and the RS is sent according to the first information.

In combination with the first aspect above, in a possible implementation, the format of the first DCI is DCI fomat 0_1 or DCI fomat 0_2, and the first DCI does not satisfy any of the following: the bit status of the RS request field is all 0, and The length of the CSI request field is 0 bits, and the bit status of the UL-SCH indication field is all 0. The bit state of the RS request field is all 0, and the length of the UL-SCH indication field is 0 bits, and the bit state of the CSI request field is all 0. The bit state of the RS request field is all 0, and the bit state of the UL-SCH indication field is all 0, and the bit state of the CSI request field is all 0.

In combination with the first aspect above, in a possible implementation, the format of the first DCI is DCI fomat 0_2, and the first DCI does not satisfy any of the following: the length of the RS request field is 0 bits, and the length of the CSI request field is 0 bit, and the bit state of the UL-SCH indication field is 0. The length of the RS request field is 0 bits, the length of the UL-SCH indication field is 0 bits, and the bit status of the CSI request field is all 0. The length of the RS request field is 0 bits, and the bit status of the UL-SCH indication field is 0, and the bit status of the CSI request field is all 0.

In combination with the first aspect above, in a possible implementation, when the format of the first DCI is DCI format 0_1, and the scrambling method of the CRC of the first DCI does not include SP-CSI-RNTI scrambling, the first DCI The following conditions are not met: the bit status of the RS request field is all 0, the bit status of the UL-SCH indication field is 0, and the bit status of the CSI request field is all 0.

In a second aspect, an RS transmission method is provided, and the communication device executing the RS transmission method may be an access network device; it may also be a module applied to the access network device, such as a chip or a chip system. The following description is made by taking the execution subject as an access network device as an example. The RS transmission method may include: first, the access network device may send first downlink control information DCI. The first DCI may include an RS request field, first information, and second information, wherein the RS request field may be used to indicate a triggered RS resource set, and the first information may be related to RS transmission corresponding to the triggered RS resource set information. The second information and/or the CRC information of the first DCI may be used to indicate that the first DCI may further include third information or fourth information. Wherein, the third information may be used to send the RS, and the fourth information is related to data scheduling. Afterwards, the access network device may receive the RS according to the first information and/or the third information.

For the relevant descriptions of the first information, the second information, the third information, and the fourth information and other information, reference may be made to what is described in the possible implementation of the first aspect, and details are not repeated here. In addition, the technical effect of the second aspect can refer to the above-mentioned first aspect, which will not be repeated here.

In a third aspect, a communication device is provided. The communication device may be a terminal device or a chip or a chip system in the terminal device, and may also be a terminal device used to implement the method in any possible implementation manner of the first aspect. functional module. The communication device may implement the functions executed by the terminal device in any possible implementation manner of the first aspect above, and the functions may be implemented by executing corresponding software through hardware. The hardware or software includes one or more modules with corresponding functions above. For example, the communication device may include: a transceiver module and a processing module.

With reference to the third aspect above, in a possible implementation manner, the transceiver module is configured to obtain the first downlink control information DCI. The first DCI includes an RS request field, where the RS request field is used to indicate a triggered RS resource set. The first DCI may further include first information and second information, where the first information is information related to RS transmission corresponding to the triggered RS resource set. The processing module is configured to determine, according to the CRC information and/or the second information of the first DCI, that the first DCI further includes third information or fourth information. The transceiver module is further configured to send the RS according to the first information and/or the third information.

With reference to the third aspect above, in a possible implementation manner, the first information may include one or more of the following information: available time slot information, transmit power control information, carrier indication information, uplink or supplementary uplink indication information, Partial bandwidth indication information. In this embodiment of the present application, the first information may be information necessary for the terminal device to send the RS. When an RS resource set is triggered, the terminal device needs to send the RS according to the first information.

With reference to the third aspect above, in a possible implementation manner, the processing module is configured to determine according to the CRC information and/or the second information of the first DCI that the first DCI also includes third information or fourth information, specifically including: processing A module for determining that the first DCI further includes third information when the CRC of the first DCI is scrambled by the first RNTI and the second information belongs to the first set. Alternatively, the processing module is configured to determine that the first DCI further includes fourth information when the CRC of the first DCI is scrambled by the first RNTI and the second information belongs to the second set. Alternatively, the processing module is configured to determine that the first DCI further includes third information when the CRC of the first DCI is scrambled by the second RNTI and the second information belongs to the third set.

With reference to the third aspect above, in a possible implementation manner, the processing module is configured to determine according to the CRC information and/or the second information of the first DCI that the first DCI also includes third information or fourth information, specifically including: processing means for determining that the first DCI also includes third information when the second information belongs to the first set. Alternatively, the processing module is configured to determine that the first DCI further includes fourth information when the second information belongs to the second set.

With reference to the third aspect above, in a possible implementation manner, the processing module is configured to determine according to the CRC information and/or the second information of the first DCI that the first DCI also includes third information or fourth information, specifically including: processing A module, configured to determine that the first DCI further includes fourth information when the CRC of the first DCI is scrambled by the second RNTI.

With reference to the third aspect above, in a possible implementation manner, the first DCI includes the third information, and the first DCI is used to trigger the aperiodic RS resource set without data and without CSI. Alternatively, the first DCI includes the fourth information, and the first DCI is used to trigger the aperiodic RS resource set with data and/or with CSI.

With reference to the third aspect above, in a possible implementation manner, the first RNTI is a cell radio network temporary identifier C-RNTI. The second RNTI includes one or more of the following: semi-static channel state information wireless network temporary identifier SP-CSI-RNTI, configured and scheduled wireless network temporary identifier CS-RNTI, modulation and coding mode cell wireless network temporary identifier MCS-C-RNTI .

In combination with the third aspect above, in a possible implementation manner, the third information may include one or more of the following information: available time slot information for RS transmission, time slot offset information, RS symbol-level time information, Time domain behavior information for RS transmission in multiple symbols, a set of carrier information for RS transmission, frequency domain resource information, partial bandwidth BWP information, power control information, space domain parameter information, and RS trigger status information.

With reference to the foregoing third aspect, in a possible implementation manner, the first DCI may further include a first field. The first set may include: the bit state of the first field belongs to the first bit state set. The third set may include: the bit state of the first field belongs to the first set of bit states.

With reference to the third aspect above, in a possible implementation manner, the length of the CSI request field is 0 bits, and the first set may include: the bit state of the UL-SCH field is 0. If the length of the CSI request field is greater than 0 bits, the first set may include: the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0.

With reference to the foregoing third aspect, in a possible implementation manner, the first DCI may further include a first field. The first set may include: the bit state of the first field belongs to the first bit state set. The third set may include: the bit state of the UL-SCH field is 0, the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set. Or, the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the first field belongs to the first bit status set.

With reference to the foregoing third aspect, in a possible implementation manner, the first DCI further includes a first field. The first set may include: the bit state of the UL-SCH field is 0, the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set. Or, the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the first field belongs to the first bit status set. The third set may include: the bit state of the first field belongs to the first set of bit states.

With reference to the foregoing third aspect, in a possible implementation manner, the first DCI may further include a first field. The first set may include: the bit state of the UL-SCH field is 0, the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set. Or, the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the first field belongs to the first bit status set. The third set may include: the bit state of the UL-SCH field is 0, the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set. Or, the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the first field belongs to the first bit status set.

With reference to the third aspect above, in a possible implementation manner, the fourth information may include one or more of the following information: uplink shared channel UL-SCH indication information, channel state information CSI request information, frequency domain resource allocation FDRA information, time domain resource allocation TDRA information, frequency hopping FH identification information, MCS information, new data indicator new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink allocation index 1st downlink assignment index information, second downlink assignment indication 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information, demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, transmission power control command TPC command for scheduled PUSCH information of scheduled uplink shared channel, open loop power Control parameter set indication information and priority indication information.

With reference to the third aspect above, in a possible implementation manner, the third information may not include one or more of the following information: uplink shared channel UL-SCH indication information, channel state information CSI request information, frequency domain resources Allocation of FDRA information, time domain resource allocation TDRA information, frequency hopping FH identification information, MCS information, new data indicator new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink allocation index 1st downlink assignment index information, 2nd downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal Relationship PTRS-DMRS association information, beta beta bias indication information, demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC command for scheduled PUSCH information, open loop Power control parameter set indication information and priority indication information. The fourth information may not include one or more of the following information: available slot information for RS transmission, slot offset information, RS symbol-level time information, time-domain behavior information for RS transmission in multiple symbols, RS A set of transmitted carrier information, frequency domain resource information, partial bandwidth BWP information, power control information, space domain parameter information, and RS trigger status information.

With reference to the third aspect above, in a possible implementation manner, the format of the first DCI may be DCI format 0_1, and the first DCI may include a frequency domain resource allocation FDRA field and/or a frequency hopping FH field. The first set may include: the resource allocation type is the first allocation type, and the bit status of the FDRA field is all 0s. Alternatively, the resource allocation type is the second allocation type, and the bit status of the FDRA field is all 1s. Alternatively, the resource allocation type is the second allocation type, the bit state of the FDRA field belongs to the second bit state set, and the bit state of the FH field is 1, and the second bit state set is used to indicate that the resource allocation is full bandwidth measurement.

With reference to the third aspect above, in a possible implementation manner, the fourth information may include one or more of the following information: uplink shared channel UL-SCH indication information, channel state information CSI request information, time domain resource allocation TDRA information, MCS information, new data indicator new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink assignment index 1st downlink assignment index information, second downlink assignment instruction 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information, Demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC command for scheduled PUSCH information, open-loop power control parameter set indication information, priority indication information. It should be understood that, since the FDRA field and/or the FH field are used to determine that the first DIC also includes the third information or the fourth information, the fourth information does not include the FDRA field and/or the FH field.

With reference to the third aspect above, in a possible implementation manner, the third information may not include one or more of the following information: uplink shared channel UL-SCH indication information, channel state information CSI request information, time domain resources Assign TDRA information, MCS information, new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink assignment index 1st downlink assignment index information, second downlink assignment index 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information , demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC command for scheduled PUSCH information, open-loop power control parameter set indication information, priority indication information. The fourth information does not include one or more of the following information: available slot information for RS transmission, slot offset information, RS symbol-level time information, time-domain behavior information for RS transmission in multiple symbols, RS transmission A set of carrier information, frequency domain resource information, partial bandwidth BWP information, power control information, space domain parameter information, and RS trigger status information.

With reference to the third aspect above, in a possible implementation manner, the transceiver module is configured to send the RS according to the first information and/or the third information, which may include: the first DCI includes the third information, and the transceiver module is configured to transmit the RS according to the first information and/or the third information. The first message and the third message send RS. Alternatively, the first DCI further includes fourth information, and the transceiver module is configured to send the RS according to the first information.

In combination with the third aspect above, in a possible implementation, the format of the first DCI is DCI fomat 0_1 or DCI fomat 0_2, and the first DCI does not satisfy any of the following: the bit status of the RS request field is all 0, and The length of the CSI request field is 0 bits, and the bit status of the UL-SCH indication field is all 0. The bit state of the RS request field is all 0, and the length of the UL-SCH indication field is 0 bits, and the bit state of the CSI request field is all 0. The bit state of the RS request field is all 0, and the bit state of the UL-SCH indication field is all 0, and the bit state of the CSI request field is all 0.

In combination with the third aspect above, in a possible implementation, the format of the first DCI is DCI fomat 0_2, and the first DCI does not satisfy any of the following: the length of the RS request field is 0 bits, and the length of the CSI request field is 0 bit, and the bit state of the UL-SCH indication field is 0. The length of the RS request field is 0 bits, the length of the UL-SCH indication field is 0 bits, and the bit status of the CSI request field is all 0. The length of the RS request field is 0 bits, and the bit status of the UL-SCH indication field is 0, and the bit status of the CSI request field is all 0.

In combination with the third aspect above, in a possible implementation, when the format of the first DCI is DCI format 0_1, and the scrambling method of the CRC of the first DCI does not include SP-CSI-RNTI scrambling, the first DCI The following conditions are not met: the bit status of the RS request field is all 0, the bit status of the UL-SCH indication field is 0, and the bit status of the CSI request field is all 0.

Wherein, for the technical effect of the third aspect, reference may be made to the above-mentioned first aspect, which will not be repeated here.

In a fourth aspect, a communication device is provided. The communication device may be an access network device or a chip or a chip system in the access network device, and may also be any possible device used to implement the first aspect in the access network device. The function module that implements the method in the mode. The communication device may implement the functions performed by the access network device in any possible implementation manner of the first aspect above, and the functions may be implemented by executing corresponding software through hardware. The hardware or software includes one or more modules with corresponding functions above. For example, the communication device may include: a transceiver module and a processing module.

With reference to the fourth aspect above, in a possible implementation manner, the transceiver module may be configured to send the first DCI. The first DCI may include an RS request field, first information, and second information, wherein the RS request field may be used to indicate a triggered RS resource set, and the first information may be related to RS transmission corresponding to the triggered RS resource set information, the second information and/or the CRC information of the first DCI may be used to indicate that the first DCI further includes third information or fourth information. Wherein, the third information may be used to send the RS, and the fourth information is related to data scheduling. The transceiver module may also be configured to receive the RS according to the first information and/or the third information.

Wherein, the related description of the first information, the second information, the third information, and the fourth information and other information may refer to the description in the possible implementation of the third aspect, and details are not repeated here. In addition, for the technical effect of the fourth aspect, reference may be made to the above-mentioned second aspect, which will not be repeated here.

In a fifth aspect, a communication device for implementing the above method is provided. The communication device includes a corresponding module, unit, or means (means) for implementing the above method, and the module, unit, or means may be implemented by hardware, software, or by executing corresponding software on hardware. The hardware or software includes one or more modules or units corresponding to the above functions.

In a possible implementation manner, the communication device may include a processing module and a transceiver module, where the transceiver module is used to perform the operations of receiving and sending messages in the method described in the first aspect or the second aspect above; the processing module uses In the call instruction, execute the message processing or control operation in the method described in the first aspect or the second aspect above.

According to a sixth aspect, a communication device is provided, including: a processor; the processor is configured to be coupled with a memory, and after reading a computer instruction stored in the memory, execute the method according to any one of the above aspects according to the instruction.

In a possible implementation manner, the communication device further includes a memory; the memory is used to store computer instructions.

In a possible implementation manner, the communication device further includes a communication interface; the communication interface is used for the communication device to communicate with other devices. Exemplarily, the communication interface may be a transceiver, an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit, and the like.

In a possible implementation manner, the communication device may be a chip or a chip system. Wherein, when the communication device is a system-on-a-chip, the communication device may be composed of a chip, or may include a chip and other discrete devices.

In a possible implementation, when the communication device is a chip or a chip system, the above-mentioned communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system wait. The aforementioned processor may also be embodied as a processing circuit or a logic circuit.

In a seventh aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium is run on a computer, the computer can execute the method described in any one of the above-mentioned aspects.

In an eighth aspect, there is provided a computer program product including instructions, which, when run on a computer, enable the computer to execute the method described in any one of the above aspects.

Wherein, the technical effect brought by any possible implementation of the fifth aspect to the eighth aspect can refer to the technologies brought about by different implementations in the first aspect or the second aspect or the third aspect or the fourth aspect effects, which will not be repeated here.

Description of drawings

FIG. 1 is a schematic diagram of a wireless communication scenario provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a wireless communication scenario provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a wireless communication scenario provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a wireless communication scenario provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of an RS transmission method provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application.

Detailed ways

Before introducing the embodiments of the present application, some terms and related technologies involved in the embodiments of the present application are explained. It should be noted that the following explanations are for the purpose of making the embodiments of the present application easier to understand, and should not be regarded as limiting the scope of protection required by the embodiments of the present application.

A reference signal (reference signal, RS) is a signal sent by a transmitter to a receiver for channel estimation or channel detection. The RS may include an uplink reference signal and a downlink reference signal, the uplink reference signal may include a demodulation reference signal (demodulation reference signal, DMRS) and SRS, and the like, and the downlink reference signal may include a cell reference signal (cell reference signal, CRS). An RS resource set may be configured on the sending end, and the RS resource set may include RS resources, and the sending end may send RS on the RS resources included in the triggered RS resource set.

The following takes the uplink reference signal SRS in 5G NR as an example for specific description:

The SRS is sent by the terminal device to the access device, and the access network device can estimate channel quality according to the SRS, that is, the SRS can be used for uplink channel measurement. The access network device can configure one or more SRS resource sets for the terminal device through a high-level parameter SRS-resourceset, and the terminal device can send SRS on the SRS resources included in the triggered SRS resource set.

The SRS can be used for uplink channel measurement in different application scenarios, and correspondingly, the SRS resource set can be configured for different purposes. The use of each SRS resource set on the terminal device can be configured by the access network device through the usage (usage) in the high layer parameter SRS-resourceset. For example, the SRS resource set may be used for uplink channel measurement in uplink transmission based on codebook (CB), and the high-level parameter usage is configured as codebook; or the SRS resource set may be used for non-codebook (noncodebook, NCB) based The uplink channel measurement in the uplink transmission, its high-level parameter usage is configured as noncodebook; or the SRS resource set can be used for beam management (beam management, BM) in the uplink channel measurement, and its high-level parameter usage is configured as beammanagement; or SRS The resource set may be used for uplink channel measurement in antenna switching (antenna switching, AS), and its high-level parameter usage is configured as antenna switching; or the SRS resource set may also be used for uplink channel measurement in positioning.

The slot format of NR includes downlink symbols, uplink symbols and flexible symbols, and SRS can only be sent on uplink symbols or flexible symbols. The access network device can transmit the number of continuous orthogonal frequency division multiplexing (OFDM) symbols of the SRS resource, the number of symbols of the SRS resource in the trigger slot for each SRS resource through high-level parameter resource mapping (resourcemapping). The occupied start symbol position and repetition factor are configured.

From the perspective of time-domain behavior, the access network device can configure the SRS resource set as P-SRS, SP-SRS or AP-SRS three different time-domain behaviors through the high-layer parameter resource type. For P-SRS, each SRS resource can be configured with a slot-level cycle and a slot-level offset, and the terminal device will repeatedly send the SRS according to the cycle. For SP-SRS, each SRS resource can also be configured with a slot-level cycle and a slot-level offset, and send activation or deactivation through a media access control-control element (MAC CE) command, when the SP-SRS is activated, the UE will periodically send the SRS until it receives the deactivation command. For AP-SRS, the access network device can define a slot-level offset for each SRS resource set through the high-layer parameter slot offset (slotoffset), and the access network device can use the downlink control information (DCI) Trigger AP-SRS.

Wherein, the SRS resource set may be triggered by downlink control information (downlink control information, DCI) and other information (such as configuration of high-level parameters). For example, taking the AP-SRS resource set as an example, according to the 15th or 16th edition (release 15/16, Rel 15/16) communication standard proposed by the International Communications Standards Organization, it can be used to trigger the DCI format of the AP-SRS resource set (fomat) can include the following:

· DCI for uplink scheduling, such as DCI format 0_1 and DCI format 0_2;

Group common (group common) DCI, such as DCI format 2_3;

· DCI for downlink scheduling, such as DCI format 1_1 and DCI format 1_2.

Specifically, the DCI may include an SRS request field, which is used to indicate the triggering of the SRS resource set. Specifically, at least one value of the SRS request field indicates the triggering of the corresponding SRS resource set. The lengths of the SRS request fields in DCIs of different formats may be the same or different. For example, when the terminal device is not configured with supplementary uplink (SUL), for DCI format 0_1 and DCI format 1_1, the length of the SRS request field is fixed at 2 bits (bit); the length of the SRS request field in DCI format 2_3 0 bit or 2 bits; in DCI format 0_2 and DCI format 1_2, the length of the SRS request field can be 0 bit, 1 bit, 2 bits, or 3 bits, etc. In addition, the values of the SRS request field in the DCIs of different DCI formats are the same, and the meanings indicated by the SRS request field may be the same or different.

As an example, taking the SRS request field as 2 bits as an example, Table 1 below shows the triggering of the AP-SRS resource set under different values of the SRS request field. As shown in Table 1, whether to trigger the AP-SRS resource set can be determined in combination with the value of the SRS request field, the DCI format, and the configuration of high-layer parameters.

Table 1

Referring to Table 1, for DCI format 0_1, or format 0_2, or format 1_1, or format 1_2, or format 2_3 and high-level parameter sounding reference signal-power control command (power control command)-physical uplink control channel-group (SRS-TPC -PDCCH-group) is set to "typeB", according to the value of the SRS request field in the DCI, it can indicate that the upper layer parameter aperiodic SRS-resource trigger (aperiodicSRS-resourcetrigger) is configured as the corresponding value or aperiodic SRS resource An AP-SRS resource set configured with a corresponding value in the trigger table (aperiodicSRS-resourcetriggerlist) is triggered. For example, when the value of the SRS request field is 01, the high-level parameter aperiodicSRS-resourcetrigger is configured as 1 or an AP-SRS resource set configured as 1 in the aperiodicSRS-resourcetriggerlist is triggered; when the value of the SRS request field is 10 , the high-level parameter aperiodicSRS-resourcetrigger is configured as 2 or an AP-SRS resource set configured as 2 in the aperiodicSRS-resourcetriggerlist is triggered; when the value of the SRS request field is 11, the high-level parameter aperiodicSRS-resourcetrigger is configured as 3 or aperiodicSRS- An AP-SRS resource set configured as 3 in resourcetriggerlist is triggered.

For another example, for the DCI format 2_3 and the high-level parameter srs-TPC-PDCCH-Group is set to "typeA", according to the value of the SRS request field in the DCI, it can indicate that the usage of the corresponding group in the serving cell configured by the high-level layer is configured. AP-SRS resource set for 'antennaswitching' is triggered. For example, when the value of the SRS request field is 01, the AP-SRS whose usage is configured as 'antennaswitching' in the first group of serving cells configured by the high layer is triggered; when the value of the SRS request field is 10, the service configured by the high layer The second group of AP-SRS whose usage is configured as 'antennaswitching' in the cell is triggered; when the value of the SRS request field is 11, the third group of AP-SRS whose usage is configured as 'antennaswitching' in the serving cell configured by the upper layer is triggered trigger.

In addition, continuing to refer to Table 1, when the value of the SRS request field is 00, no AP-SRS resource set is triggered.

Wherein, the DCI used to trigger the SRS resource set may also carry other fields, and the other fields may be used for scheduling other information. Taking the DCI used for uplink scheduling as an example (such as DCI format 0_1 and format 0_2), some other fields included in the DCI are introduced below:

Uplink shared channel (uplink shared channel, UL-SCH) indication (indicator) field: used to indicate whether there is uplink data transmitted on the physical uplink shared channel (physical uplink shared channel, PUSCH). For DCI format 0_1, the length of this field is 0 bits (that is, this field does not exist) or 1 bit. When the time domain resource allocation (time domain resource allocation, TDRA) field in the DCI indicates that the number of scheduled PUSCHs is greater than 1, the bit length of this field is 0 bits, otherwise (that is, the TDRA field indicates that the number of scheduled PUSCHs is equal to 1 or 0), the bit length of this field is 1 bit. For DCI format 0_2, the field length of the UL-SCH indicator is fixed at 1 bit. When the bit length of this field is 1 bit, if the bit status of this field is equal to 1, it means that there is UL-SCH transmitted on PUSCH; if the bit status of this field is equal to 0, it means that there is no UL-SCH transmitted on PUSCH.

· CSI request field: used to trigger the reporting of CSI. The number of bits in this field is determined according to the configuration of the high-level parameter report trigger size (reporttriggersize). The number of bits in this field can be 0 bits, 1 bit, 2 bits, 3 bits, 4 bits, 5 bits, or 6 bits. Each Each value (which may be referred to as a bit state) corresponds to a trigger state of a CSI report.

The DCI scrambled by a cell-radio network temporary identifier (C-RNTI) is used to trigger aperiodic CSI reporting. The network can configure multiple aperiodic CSI reporting trigger states through a parameter aperiodic trigger state list (aperiodic trigger state list) included in the high layer parameter CSI measurement configuration (CSI-measconfig). Wherein, a trigger state is associated with one or more CSI report configurations (CSI-reportconfig), and the terminal device will perform downlink channel measurement according to the CSI-RS resources associated with the CSI-reportconfig after receiving a trigger state. Since all zeros in the CSI request field indicate that aperiodic CSI reporting is not triggered, the CSI request field can indicate at most 63 (ie, 2 ⁶ −1) triggering states of aperiodic CSI reporting. When the number of trigger states configured is greater than the number of trigger states that can be indicated by the CSI request field (for example, the CSI request field is 6 bits, and the number of trigger states configured for aperiodic CSI reporting is 100), it is necessary to filter out 63 states through MAC CE trigger state.

For the DCI scrambled by the semi-persistent channel state information radio network temporary identifier (semi-persistent channel state information radio network temporary identifier) SP-CSI-RNTI, it is used to trigger semi-persistent CSI reporting on the PUSCH. The network can configure a group of trigger states for the terminal device through the high-layer parameter CSI-semipersistentonPUSCH-triggerstatelist, and then activate one of the trigger states by DCI scrambled by SP-CSI-RNTI. The difference between DCI scrambled by SP-CSI-RNTI and DCI scrambled by C-RNTI is that all zeros in the CSI request field still correspond to a trigger state of a semi-persistent CSI report, rather than indicating that no CSI report is triggered.

Frequency domain resource assignment field (frequency domain resource assignment, FDRA): used to indicate frequency domain resource assignment for PUSCH transmission. The length of the FDRA field can be determined according to the frequency domain resource allocation mode (including type0 and type1) configured on the bandwidth part (BWP). The length of the FDRA field may be shown in Table 2.

Table 2

Referring to Table 2, when the frequency domain resource allocation mode is configured as type0 by the high layer parameter PUSCH-config, the length of the FDRA field is N _RBG . Wherein, N _RBG refers to the total number of resource block groups (resource block group, RBG) in the uplink BWP, which can be determined according to the size of the BWP and radio resource control (radio resource control, RRC) configuration. In this frequency domain resource allocation method, the RBG indication method is: in the form of a bitmap, starting from the lowest frequency, RBG (0) to RBG (N _RBG -1) corresponding to the most significant bit (most significant bit , MSB) to the least significant bit (least significant bit, LSB), when the bit value is 1, it means that this RBG is allocated to the terminal device.

Continuing to refer to Table 2, when the frequency domain resource allocation method is configured as type1 by the high-level parameter PUSCH-config, the length of the FDRA field is

Among them, when the DCI is sent in the common search space (common search space, CSS),

Indicates the total number of RBs included in the initial BWP. When the DCI is sent in the UE specific search space (UE specific search space, USS),

Indicates the number of RBs included in the active BWP. According to the alignment rule of the DCI format, the number of bits of the FDRA field may be determined by the number of RBs included in the initial BWP. In this frequency-domain resource allocation mode, FDRA indicates frequency-domain resource allocation by means of a resource indication value (RIV), where RIV indicates the starting RB number and the length of continuously allocated RBs.

It should be noted that, according to existing protocols (such as Rel 15/16), for DCI format 0_1 or 0_2 that uses non-SP-CSI-RNTI scrambling, when the CSI request field is all zero (does not trigger aperiodic CSI reporting) and When the value of the UL-SCH field is 0 (no uplink data transmission), the terminal device schedules an empty PUSCH, so the terminal device does not wish to have such an indication. In other words, it is not allowed in the existing protocol: DCI is only used to trigger AP-SRS, but does not perform uplink data transmission and does not trigger CSI reporting.

However, in future protocol versions (such as Rel-17), DCI format 0_1 and format 0_2 are supported to trigger AP-SRS without uplink data transmission and CSI reporting. When DCI is used to only trigger SRS without uplink data transmission and CSI reporting, the fields related to data scheduling (including uplink data transmission and CSI reporting) in the DCI specified in the existing protocol will become useless, so these Fields may be reinterpreted in newer versions of the protocol. Therefore, when a terminal device receives DCI, it cannot distinguish whether the DCI only triggers AP-SRS, or triggers AP-SRS while also performing uplink data transmission and/or CSI reporting, and thus cannot determine what some fields in the DCI indicate. specific meaning.

In order to solve these problems, an embodiment of the present application provides an RS transmission method, which can determine whether the first DCI includes the third information or the fourth information through the CRC information and/or the second information in the first DCI, and then can according to the first The first information and/or the third information in the DCI send RS. This method can enable the terminal device to recognize other information included in the DCI besides the field used to trigger the RS resource set. Also, different interpretations are provided for other information included in the DCI.

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Among them, in the description of this application, unless otherwise specified, "/" indicates that the objects associated with each other are an "or" relationship, for example, A/B can indicate A or B; in this application, "and/or "It is just an association relationship describing associated objects, which means that there can be three kinds of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone. , B can be singular or plural. And, in the description of the present application, unless otherwise specified, "plurality" means two or more than two. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (piece) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple . In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. Those skilled in the art can understand that words such as "first" and "second" do not limit the number and execution order, and words such as "first" and "second" do not necessarily limit the difference. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design solutions. To be precise, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner for easy understanding.

In addition, the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. With the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

First, the system architecture or scenario applied by the embodiment of the present application is introduced. The solutions of the embodiments of the present application are applicable to protocol frameworks such as 4G long term evolution (long term evolution, LTE) or 5G NR, and can be applied to various wireless communication scenarios. The wireless communication system includes communication devices, and the communication devices can use air interface resources to perform wireless communication. Wherein, the communication device may include an access network device and a terminal device, and the air interface resource may include at least one of a time domain resource, a frequency domain resource, a code resource and a space resource. The wireless communication scenarios applied in the embodiments of the present application may include various scenarios in which an access network device communicates with a terminal device.

Exemplarily, the access network device may be a base station, and the terminal device may be a user terminal (user equipment, UE). The wireless communication scenario applied in the embodiment of the present application may be the scenario of point-to-point transmission between the base station and the UE shown in FIG. 1 , or the scenario of multi-hop relay transmission between the base station and the UE shown in FIG. 2 , or The scenario of dual connectivity (dual connectivity, DC) between two base stations and UE shown in FIG. 3 , or the scenario of multi-hop and multi-connection between the base station and UE shown in FIG. 4 . It should be understood that FIG. 1 to FIG. 4 are only exemplary, and do not limit the applicable network architecture of this application. In addition, the solutions of the embodiments of the present application do not limit transmissions such as uplink, downlink, access link, backhaul (backhaul) link, sidelink (sidelink) and the like.

The terminal device involved in the embodiment of this application can be a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as ships, etc.); Can be deployed in the air (such as aircraft, balloons and satellites, etc.). Wherein, the terminal device may be a UE, an access terminal, a terminal unit, a subscriber unit, a terminal station, or a mobile station (Mobile Station) in a 5G network or a future evolved public land mobile network (PLMN). , MS), mobile station, remote station, remote terminal, mobile equipment, wireless communication equipment, terminal agent or terminal device, etc. An access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) , handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices or wearable devices, virtual reality (virtual reality, VR) terminal devices, augmented reality (augmented reality, AR) terminal devices, Wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety ), wireless terminals in a smart city, wireless terminals in a smart home, etc. Terminals can be mobile or fixed.

The access network equipment involved in this application is a device deployed in a wireless access network to provide wireless communication functions for terminal equipment. The access network equipment in this embodiment of the present application may include base stations in various forms, for example: macro base stations, micro base stations (also called small stations), relay stations, access points, and the like. In systems using different radio access technologies, the names of network devices may vary, for example: global system for mobile communication (GSM) or code division multiple access (CDMA) Base Transceiver Station (BTS) in the network, NB (NodeB) in wideband code division multiple access (WCDMA), eNB or eNodeB in Long Term Evolution (LTE) (evolutional NodeB), a base station in a 5G network or a future evolved public land mobile network (public land mobile network, PLMN). The access network device may also be a broadband network gateway (broadband network gateway, BNG), an aggregation switch or a non-3GPP access device. In addition, the access network device may also be a wireless controller in a cloud radio access network (CRAN), or a transmission and reception point (TRP), or a device including a TRP. This application The embodiment does not specifically limit this.

It should be noted that the terminal device and the access network device in the embodiment of the present application (such as the base station and the UE shown in FIG. 1 to FIG. 5 ) may adopt the composition structure shown in FIG. 5 or include the components shown in FIG. 5 . FIG. 5 is a schematic structural diagram of a communication device 50 provided in the embodiment of the present application. For example, when the communication device 50 has the function of the access network device described in the embodiment of the application, the communication device 50 can be an access network device. A chip or chip system in a device or an access network device. When the communication device 50 has the function of the terminal device described in the embodiment of the present application, the communication device 50 may be a terminal device or a chip or a chip system in the terminal device.

As shown in FIG. 5 , the communication device 50 may include a processor 501 , a communication line 502 and a communication interface 503 . Optionally, the communication device 50 may further include a memory 504 . Wherein, the processor 501 , the memory 504 and the communication interface 503 may be connected through a communication line 502 .

Wherein, the processor 501 may be a central processing unit (central processing unit, CPU), a general-purpose processor, a network processor (network processor, NP), a digital signal processor (digital signal processing, DSP), a microprocessor, a microcontroller , programmable logic device (programmable logic device, PLD) or any combination thereof. The processor 501 may also be other devices with processing functions, such as circuits, devices, or software modules.

The communication line 502 is used to transmit information between the components included in the communication device 50 .

The communication interface 503 is used for communicating with other devices or other communication networks. The other communication network may be an Ethernet, a radio access network (radio access network, RAN), a wireless local area network (wireless local area networks, WLAN), and the like. The communication interface 503 may be a radio frequency module or any device capable of realizing communication. This embodiment of the present application is described only by taking the communication interface 503 as an example of a radio frequency module, where the radio frequency module may include an antenna, a radio frequency circuit, etc., and the radio frequency circuit may include a radio frequency integrated chip, a power amplifier, and the like.

The memory 504 is used for storing instructions. Wherein, the instruction may be a computer program.

Wherein, the memory 504 may be a read-only memory (read-only memory, ROM) or other types of static storage devices capable of storing static information and/or instructions, or may be a random access memory (random access memory, RAM) or may Other types of dynamic storage devices that store information and/or instructions can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD- ROM) or other optical disc storage, optical disc storage, magnetic disk storage media, or other magnetic storage devices, including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.

It should be noted that the memory 504 may exist independently of the processor 501 or may be integrated with the processor 501 . The memory 504 can be used to store instructions or program codes or some data and so on. The memory 504 may be located in the communication device 50 or outside the communication device 50, without limitation. The processor 501 is configured to execute instructions stored in the memory 504, so as to implement the RS transmission method provided in the following embodiments of the present application.

Or, optionally, in the embodiment of the present application, the processor 501 may also perform processing-related functions in the RS transmission method provided in the following embodiments of the present application, and the communication interface 503 is responsible for communicating with other devices or communication networks. The embodiment of the application does not specifically limit this.

Optionally, the computer-executed instructions in the embodiments of the present application may also be referred to as application program codes, which is not specifically limited in the embodiments of the present application.

In an example, the processor 501 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 5 .

As an optional implementation manner, the communication device 50 includes multiple processors, for example, in addition to the processor 501 in FIG. 5 , it may further include a processor 507 .

As an optional implementation manner, the communication apparatus 50 further includes an output device 505 and an input device 506 . Exemplarily, the input device 506 is a device such as a keyboard, a mouse, a microphone, or a joystick, and the output device 505 is a device such as a display screen and a speaker (speaker).

It should be noted that the communication device 50 may be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless user equipment, an embedded device, a chip system or a device having a structure similar to that shown in FIG. 5 . In addition, the composition structure shown in FIG. 5 does not constitute a limitation to the communication device. In addition to the components shown in FIG. 5, the communication device may include more or less components than those shown in the illustration, or combine certain components , or different component arrangements.

In the embodiment of the present application, the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.

The SRS sending method provided by the embodiment of the present application will be described below with reference to the communication systems shown in FIG. 1 to FIG. 4 . Wherein, the devices in the following embodiments may have the components shown in FIG. 5 . The actions and terms involved in the various embodiments of the present application may refer to each other without limitation. In the embodiment of the present application, the names of messages exchanged between various devices or the names of parameters in messages are just examples, and other names may also be used in specific implementations, which are not limited.

It should be understood that, in this embodiment of the present application, the information may be an uplink signal, or uplink data, or a downlink signal, or downlink data, or one or more fields. For example, the uplink signal may be an uplink reference signal (uplink reference signal, UL RS). For example, the UL RS is an SRS, or a demodulation reference signal (demodulation reference signal, DMRS).

It should be understood that, in this embodiment of the present application, RS refers to the same type of RS, for example, CRS, DMRS, or SRS. The RS resource set can have multiple time-domain behaviors, for example, a periodic RS resource set, an aperiodic RS resource set and a semi-persistent RS resource set. In this embodiment of the present application, an aperiodic RS is taken as an example for description, and the aperiodic RS may be an aperiodic SRS. Since the DCI that can be used to trigger the AP-SRS resource set includes DCI for uplink scheduling, group common DCI and DCI for downlink scheduling, the first DCI in this embodiment of the present application uses DCI for uplink scheduling as an example Be explained.

Among them, SRS is used for antenna switching (for example, the high-level parameter usage is configured as antennaSwitching), or SRS is used for beam management (for example, the high-level parameter usage is configured for beamManagement), or SRS is used for codebook-based uplink data transmission (for example, the high-layer parameter usage is configured as codebook), or the SRS is used for non-codebook-based uplink data transmission (for example, the high-layer parameter usage is configured as nonCodebook).

In addition, the SRS may be a configured SRS, or a triggered SRS, or an SRS sent by the UE, which is not specifically limited in this application.

It should be understood that the uplink data may be a physical uplink shared channel (physical uplink shared channel, PUSCH), or data carried on the PUSCH, or a physical uplink control channel (physical uplink control channel, PUCCH), or data carried on the PUCCH , this application does not specifically limit it.

For the convenience of describing the technical solution of this application, this application takes the reference signal as SRS as an example to describe the technical solution of this application, but it should be noted that the technical solution of this application is also applicable to other types of signals. have a limiting effect.

It should be noted that in the embodiment of the present application, the transmission of SRS is equivalent to the transmission of SRS resources, the transmission of SRS resource sets is also equivalent to the transmission of SRS contained in the SRS resource sets, and the transmission of SRS is equivalent to the transmission of SRS resources. The transmission of SRS resources is also equivalent, and this description is also applicable to similar expressions in the embodiments of the present application, which will be described collectively here, and will not be described in detail later.

It should be uniformly noted that, in the embodiment of the present application, sending and transmitting are also equivalent.

It should be noted uniformly that, in the embodiment of the present application, triggering an RS resource set is equivalent to triggering an aperiodic RS.

It should be uniformly noted that, in the embodiment of the present application, the high-layer signaling configuration information may be radio resource control (radio resource control, RRC), or MAC CE, and so on.

It should be uniformly noted that, in the embodiment of the present application, the bit status of a field is all 0, which means that the bit status of all bits contained in the field is 0. A field with a bit state of all 1s indicates that the bit states of all bits contained in the field are 1.

FIG. 6 is a flow chart of an RS sending method provided by an embodiment of the present application. As shown in FIG. 6 , taking the RS resource set as an SRS resource set as an example, the RS sending method may include the following steps.

S601. The access network device sends the first DCI, and correspondingly, the terminal device acquires the first DCI.

Wherein, the first DCI is used to trigger the aperiodic SRS resource set. For example, the first DCI may include an SRS request field, and the SRS request field may be used to indicate the triggered SRS resource set. Specifically, the relevant description of the RS request field is as described above. described, not repeated. The SRS request field is used to indicate SRS request information, or in other words, the SRS request field is equivalent to the SRS request information. The first DCI may further include first information and second information, where the first information is information related to SRS transmission corresponding to the triggered SRS resource set.

In this embodiment of the present application, the SRS resource set may be configured by high-level signaling configuration information. After the SRS resource set is triggered, the terminal device may send SRS on the SRS resources included in the triggered SRS resource set. In this embodiment of the present application, the first DCI is used to indicate the triggered SRS resource set. As an implementation method, the first DCI can be used to indicate the ID of the triggered SRS resource set, or the first DCI can be used to indicate the triggered SRS resource set. The trigger state of the resource set. The trigger state of the SRS resource set is determined according to the high layer parameter aperiodicSRS-ResourceTrigger or aperiodicSRS-ResourceTriggerList.

In this embodiment of the present application, the terminal device may determine the information according to one or more fields corresponding to the information, or the information includes one or more fields.

In this embodiment of the present application, the terminal device may determine the first information according to one or more fields corresponding to the first information, or the first information includes one or more fields. According to the first information may be directly based on the first information or indirectly based on the first information. The information related to the SRS transmission corresponding to the triggered SRS resource set (that is, the first information) may include time domain resources, frequency domain resources, transmission power and the like used for sending the SRS. Taking the first DCI as the DCI used for uplink scheduling as an example, optionally, the first information included in the first DCI may include one or more of the following information: available time slot information, transmit power control information, carrier indication information , uplink or supplementary uplink indication information, partial bandwidth indication information.

As an implementation, the first information includes one or more of the following fields: time indication field, transmit power control field (for example, SRS TPC field), carrier indication field, uplink or supplementary uplink indication field, partial bandwidth indication field . Among them, the time indication field is used to carry the available time slot information, that is, on which available time slot the SRS is sent, the transmission power control field is used to carry the transmission power control information, and the carrier indication field is used to carry the carrier indication information. The supplementary uplink indication field is used to carry uplink or supplementary uplink indication information, and the partial bandwidth indication field is used to carry partial bandwidth indication information.

It should be understood that when the first DCI is other types of DCI, the first information indicated by the first DCI may be somewhat different. For example, when the first DCI is DCI for downlink scheduling, the first information may include downlink or supplementary downlink indication information.

In this embodiment of the present application, the second information may be indicated by one or more fields, or the second information includes one or more fields. Different state values of the same field (may be referred to as bit states or values in this application) may indicate different information, or in other words, different state values of the same field correspond to different interpretations of one or more other fields. The same field can have one or more candidate state values (or bit states), and the information indicated by the candidate state values (or bit states) of one or more fields corresponding to the second information can form a set, for example, the first set, second set, third set, etc. The fields included in different sets and the state values of the fields may be the same or different. The second information may belong to any of the above-mentioned sets.

In this embodiment of the application, the fields that can be used to indicate the second information may include the UL-SCH field, the CSI request field, the FDRA field, the FH field, the first downlink assignment index 1st downlink assignment index field, and the second downlink assignment index 2st At least one of the downlink assignment index field and the identification field. In this embodiment of the present application, the second information may include information indicated by candidate state values (or bit states) of the above one or more fields.

S602. The terminal device determines, according to cyclic redundancy check (cyclic redundancy check, CRC) information and/or second information of the first DCI, that the first DCI further includes third information or fourth information.

In a wireless communication system, check information may be added to a transmitted message, and in this embodiment of the present application, the first DCI may include CRC information. It should be noted that the CRC information in the first DCI may be scrambled through the RNTI. In the embodiment of the present application, the scrambling method of CRC may include C-RNTI, SP-CSI-RNTI, configure scheduling RNTI (CS-RNTI), or modulation and coding mode cell wireless network temporary identifier (modulcation coding scheme cell RNTI, MCS-C-RNTI).

Since the new protocol version supports DCI to be used to trigger the SRS resource set while there is no data transmission and no CSI reporting, the first DCI received by the terminal device in this embodiment of the application may have two situations: Case 1, the terminal device receives The received first DCI for triggering the SRS resource set indicates that there is data transmission and/or CSI reporting; in case 2, the terminal device receives the first DCI for triggering the SRS resource set indicates no data transmission and no CSI reporting . It should be understood that, in different situations, other information indicated by the first DCI may be different. For example, when the first DCI is used to trigger the SRS resource set and at the same time indicate that there is data transmission and/or CSI reporting, then the first DCI will include information related to the data and/or CSI. And if the first DCI is used to trigger the SRS resource set while there is no data transmission and no CSI reporting, then the DCI does not need to indicate information related to data and/or CSI, then the field originally used to indicate information related to data and/or CSI These fields become free fields, and these fields can be redefined/designed to indicate other information, and in this case, the first DCI can include redefined information. For example, the information indicated by these fields may be information related to SRS transmission. As another example, the information indicated by these fields may be information related to the SRS.

In the embodiment of the present application, the fourth information is the information included when the first DCI indicates data transmission and/or CSI reporting, and the third information is the information included when the first DCI indicates no data transmission and no CSI reporting. For example, the third information is information related to SRS transmission and/or SRS. In another example, the fourth information is information related to data transmission and/or CSI reporting. Based on this solution, the utilization rate of fields in the first DCI can be improved. Moreover, when the first DCI indicates no data transmission and no CSI reporting, the first DCI includes information related to SRS transmission, which can improve the accuracy of SRS transmission by the terminal device and the flexibility of SRS scheduling.

It should be understood that, in this embodiment of the present application, if the first DCI includes the third information, the first DCI is used to trigger the aperiodic RS resource set without data and without CSI. The first DCI includes the fourth information, and the first DCI is used to trigger the aperiodic RS resource set with data and/or with CSI. In other words, in the solution of this embodiment of the present application, the first DCI is used to indicate one or more of the following: scheduling data, triggering CSI reporting, and triggering aperiodic SRS. The first DCI including the third information is equivalent to the first DCI triggering the aperiodic SRS resource set, and there is no data scheduling and no CSI reporting trigger, and the first DCI including the fourth information is equivalent to the first DCI triggering the aperiodic SRS resource set , and there is data scheduling and/or triggering of CSI reporting.

It should be noted that, for the status value of the same DCI field, if the CRC of the DCI is scrambled in different ways, the meanings indicated by some fields in the DCI may be different. For example, the CRC uses DCI scrambled by C-RNTI, and its CSI field is used to indicate aperiodic CSI reporting, while the CRC uses DCI scrambled by C-RNTI, and its CSI field is used to indicate semi-persistent CSI reporting. Based on this, when the CRC of the first DCI adopts different scrambling methods, for the same state value of the field containing the second information, the indicated second information is different, so that the terminal device according to the CRC information of the first DCI and/or the second Whether the first DCI determined by the information also includes the third information or the fourth information is different. Therefore, in the embodiment of the present application, the terminal device may determine whether the first DCI contains the third information or the fourth information according to the CRC information of the first DCI and/or the second information. As a possible implementation manner, the scrambling manner adopted by the CRC is different, and the functions of some fields included in the first DCI are different. For example, CRC information is scrambled with C-RNTI, and the CSI request field is all 0s, indicating that no CSI is reported; CRC information is scrambled with SP-CSI-RNTI, and the CSI request field is all 0s, indicating that CSI is reported. For another example, CRC information is scrambled with C-RNTI, the UL-SCH field is 0, and the CSI request field is all 0s to indicate no data scheduling, and the first DCI includes the third information; CRC information is scrambled with SP-CSI-RNTI, and the UL - The SCH field is 0, the CSI request field is all 0s, indicating that there is data scheduling, and the first DCI includes the fourth information.

It should be understood that, according to the CRC information of the first DCI and/or the second information, the terminal device determines that the first DCI further includes the third information or the fourth information may include: the terminal device determines according to the CRC information of the first DCI and the second information The first DCI further includes third information or fourth information, or it is determined according to the second information that the first DCI further includes third information or fourth information, or it is determined according to the CRC information of the first DCI that the first DCI further includes third information or Fourth information.

It should be understood that, according to the CRC information and/or the second information of the first DCI, the terminal device determines that the first DCI also includes the third information or the fourth information may include: the terminal device determines according to the CRC information of the first DCI and/or the second information , It is determined in the first manner that the first DCI further includes the third information, or, it is determined in the second manner that the first DCI further includes the fourth information. Alternatively, the terminal device interprets some bits in the first DCI as the third information or the fourth information according to the CRC information and/or the second information of the first DCI.

Optionally, the terminal device determines that the first DCI also includes the third information or the fourth information according to the CRC information and the second information of the first DCI, which may include the following possible design modes:

In a possible implementation manner, when the CRC information of the first DCI is scrambled by the first RNTI, and the second information belongs to the first set, the first DCI further includes the third information.

Since the first DCI includes the third information, which is equivalent to the triggering of the aperiodic SRS resource set with no data and no CSI by the first DCI, the first set is: the first DCI scrambled by the first RNTI is used for In a case where there is no data and no CSI triggering of the aperiodic RS, the set of information indicated by one or more fields corresponding to the second information.

Optionally, the first RNTI is a C-RNTI. Or, optionally, the first RNTI may be one or more of the C-RNTI, the CS-RNTI, and the MCS-C-RNTI, which will be collectively described here.

In a possible implementation manner, when the CRC information of the first DCI is scrambled by the first RNTI, and the second information belongs to the second set, the first DCI further includes fourth information.

Since the first DCI includes the fourth information, which is equivalent to the triggering of the aperiodic SRS resource set with data and/or CSI by the first DCI, the second set is: the first DCI scrambled by the first RNTI in In the case of aperiodic RS triggering for data transmission and/or CSI reporting, a set of information indicated by one or more fields corresponding to the second information.

In a possible implementation manner, when the CRC information of the first DCI is scrambled by the second RNTI, and the second information belongs to the third set, the first DCI further includes the third information.

Since the first DCI includes the third information, which is equivalent to the triggering of the aperiodic SRS resource set with no data and no CSI by the first DCI, the third set is: the first DCI scrambled by the second RNTI is used for When an aperiodic RS with no data and no CSI is triggered, a set of information indicated by one or more fields corresponding to the second information. The third set may be the same as or different from the first set.

Optionally, the second RNTI is one or more of SP-CSI-RNTI, CS-RNTI, or MCS-C-RNTI. Or, optionally, the second RNTI is an SP-CSI-RNTI.

As a possible implementation manner, the first RNTI is a C-RNTI, and the second RNTI is an SP-CSI-RNTI, CS-RNTI, and MCS-C-RNTI.

As a possible implementation manner, the first RNTI is C-RNTI, CS-RNT, and MCS-C-RNTI, and the second RNTI is SP-CSI-RNTI.

It can be seen that when the CRC of the first DCI is scrambled with different types of RNTI, the second information included in the first DCI is the same, and other information included in the first DCI may be different. Alternatively, when the CRC of the first DCI is scrambled with the same type of RNTI, the second information indicated by the first DCI is different, and other information included in the first DCI may also be different.

Optionally, the terminal device may determine that the first DCI also includes third information or fourth information only according to the CRC information of the first DCI:

In a possible implementation manner, the CRC information of the first DCI is scrambled by the second RNTI, and then the first DCI includes the fourth information. It can be understood that, in this implementation manner, the second information indicated by the first DCI is the same, but the CRC scrambling method of the first DCI is different, and other information included in the first DCI is different.

Since the first DCI includes the fourth information, it is equivalent to the first DCI being used to trigger the aperiodic RS resource set with data and/or CSI, that is to say, in this implementation, the second RNTI is used to scramble the CRC The first DCI can only be used to trigger the aperiodic RS resource set with data and/or with CSI.

That is to say, when the second information indicated by the first DCI belongs to the first set, if the CRC information of the first DCI is scrambled by the first RNTI, the first DCI contains the third information; if the CRC information of the first DCI is scrambled by the first RNTI If two RNTIs are scrambled, the first DCI includes the fourth information.

It should be noted that the CRC of the first DCI is scrambled by the second RNTI, and the first DCI contains the fourth information, which is equivalent to that the CRC of the first DCI is scrambled by the second RNTI, and the first DCI does not contain the fourth information. third information. That is to say, in this implementation manner, the CRC of the first DCI is scrambled by the second RNTI, and triggering of an aperiodic RS without data scheduling and triggering of CSI reporting is not supported.

Optionally, the terminal device may also determine only according to the second information that the first DCI further includes the third information or the fourth information. In this implementation manner, the terminal device does not need to consider the scrambling manner of the CRC in the first DCI. It should be understood that technicians may pre-configure the DCI of scrambling CRC information using the first RNTI and the scrambling CRC information using the second RNTI. The other information (third information or fourth information) further included in the first DCI determined by the two information is the same.

As a possible implementation manner, when the second information belongs to the first set, the first DCI further includes the third information.

As a possible implementation manner, when the second information belongs to the second set, the first DCI further includes fourth information.

S603. The terminal device sends the SRS according to the first information and/or the third information, and correspondingly, the access network device receives the SRS according to the first information and/or the third information.

When the first DCI includes the third information, the terminal device sends the SRS according to the first information and the third information. In other words, in this embodiment of the present application, when the first DCI is used to trigger an aperiodic SRS without data and without CSI, the third information indicated by the first DCI can be related to the transmission information of the triggered RS, so that the terminal device can according to The first information and the third information send RS.

It should be noted that, in this embodiment of the present application, the third information may be information related to sending the SRS. Optionally, in this embodiment of the present application, the third information may include: available time slot information for SRS transmission, time slot offset information, SRS symbol-level time information, time-domain behavior information for SRS transmission in multiple symbols, SRS One or more items of transmitted information such as carrier information, frequency domain resource information, partial bandwidth information, power control information, space domain parameter information, and SRS trigger status information.

For example, the available time slot information is used to indicate: on which available time slot the SRS is sent. The time slot offset information is: the difference between the time slot when the SRS starts to calculate the time slot and the time slot when the first DCI is received. High layer signaling RRC configures a time slot offset set, including multiple time slot offsets, and the first DCI may select one of the time slot offsets in the time slot offset set. The RS symbol-level time information is used to indicate: the symbol positions or numbers occupied by different SRS resources. The time-domain behavior information of RS transmission in multiple symbols is used to indicate: whether RS is repeated or continuously transmitted between multiple symbols. A set of carrier information transmitted by the RS is used to indicate that: the same SRS resource set is sent on multiple carriers, or resources included in the same SRS resource set are sent on different carriers. The frequency domain resource information is used to indicate that the SRS is sent on part of the frequency domain. Part of the bandwidth BWP information is used to indicate: the BWP where the SRS is located; or whether the SRS is sent in the UL BWP or the DL BWP. Power control information may include: SRS TPC information. The spatial domain parameter information may include: a correspondence between SRS ports and antenna ports, a spatial relationship of the SRS, a reference signal corresponding to the spatial relationship of the SRS, and the like. The RS trigger status information is: the triggered aperiodic SRS resource set corresponding to the RS request field.

It should be noted that the third information may be indicated by one or more fields, or the third information may include one or more fields. As an implementation, the third information includes one or more of the following fields: available slot indication field, slot offset indication field, RS symbol level time indication field, multi-symbol indication field, multi-carrier indication field, frequency Domain resource indication field, partial bandwidth indication field, power control field, space domain parameter indication field, RS trigger status indication field.

When the first DCI includes the fourth information, the terminal device sends the RS according to the first information. In other words, in the embodiment of the present application, when the first DCI is used to trigger an aperiodic RS with data and/or with CSI, the fourth information indicated by the first DCI has nothing to do with sending the RS. It should be understood that, in this case, the fourth information indicated by the first DCI is related to data transmission and/or CSI reporting.

Optionally, the fourth information may include one or more of the following information:

Uplink shared channel UL-SCH indication information, channel state information CSI request information, frequency domain resource allocation FDRA information, time domain resource allocation TDRA information, frequency hopping (FH) identification information, modulation and coding mode MCS information, new data indication New data indicator information, redundant version (redundant version, RV) information, hybrid automatic repeat request (hybrid automatic repeat request, HARQ) process number (process number) information, first downlink assignment index information, first downlink assignment index information, second Two downlink assignment indication 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, block group transmission information (CBGTI), phase tracking reference signal-demodulation reference signal Relationship PTRS-DMRS association information, beta beta bias indication information, demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC command for scheduled PUSCH information, open loop Power control parameter set indication information and priority indication information.

It should be noted that the fourth information may be indicated by one or more fields, or the fourth information may include one or more fields. As an implementation, the fourth information includes one or more of the following fields: uplink shared channel UL-SCH indication field, CSI request field, FDRA field, TDRA field, FH identification field, MCS field, new data indication new data indicator field, RV field, HARQ process number field, 1st downlink assignment index field, 2st downlink assignment index field, RS resource indication field, precoding information and layer number field, antenna port field, CBGTI field, PTRS-DMRS association field, Beta beta bias indication field, DMRS sequence initialization field, DFI flag field, TPC field, open-loop power control parameter set indication field, priority indication field.

To sum up, the embodiment of the present application provides an RS method, and the terminal device may include first information, where the first information is information related to RS transmission. In addition, the first DCI may include CRC information and second information, and the terminal device may determine that the first DCI further includes third information or fourth information according to the CRC information and/or the second information. Based on this solution, the terminal device can identify other information included in the DCI except for triggering the RS resource set.

In addition, the third information related to RS transmission in the DCI is additionally indicated. Different from the first information, the terminal device sends the RS according to the first information and the third information, which can further improve the scheduling flexibility of the RS. It should be noted that in the embodiments of the present application, data transmission and/or CSI reporting may be collectively referred to as data scheduling, no data transmission and no CSI reporting may be collectively referred to as no data scheduling, or no data transmission and no CSI reporting It can be collectively referred to as only SRS triggering, which will be collectively described here.

As a possible implementation manner, the first DCI may indicate the second information through a state combination of the UL-SCH field and the CSI request field. As a possible implementation manner, the second information included in the first DCI includes a UL-SCH field and/or a CSI request field. Details are as follows:

(1) For the terminal device, according to the CRC information and the second information of the first DCI, determine that the first DCI also includes the third information or the fourth information:

As a possible implementation, when the length of the CSI request field is 0 bits, the second information includes the UL-SCH field, and the bit state of the first set includes the UL-SCH field is 0; when the length of the CSI request field is greater than 0 bits, the second information includes The second information includes the UL-SCH field and the CSI request field. The first set includes that the bit state of the UL-SCH field is 0, and the CSI request field is all 0.

As a possible implementation, when the length of the CSI request field is 0 bits, the terminal device determines that the first DCI contains the third information or the fourth information according to the bit state of the UL-SCH field; when the length of the CSI request field is greater than 0 bits, the terminal device The device determines that the first DCI contains the third information or the fourth information according to the bit states of the UL-SCH field and the CSI request field.

As a possible implementation, when the length of the CSI request field is 0 bits, the terminal device determines the interpretation mode of one or more fields contained in the first DCI according to the bit status of the UL-SCH field; when the length of the CSI request field is greater than 0 bits The terminal device determines an interpretation mode of one or more fields included in the first DCI according to the bit states of the UL-SCH field and the CSI request field.

As a possible implementation manner, one or more fields included in the first DCI are interpreted in a first manner, and the first DCI includes the third information. One or more fields contained in the first DCI containing the fourth information are interpreted in a second manner.

As a possible implementation, when the length of the CSI request field is 0 bits, the second information includes the UL-SCH field, and the bit status of the second set including the UL-SCH field is 1; when the length of the CSI request field is greater than 0 bits, the second information includes The second information includes the UL-SCH field and the CSI request field, and the second set includes that the bit state of the UL-SCH field is 1, and the CSI request field is not all 0.

That is to say, if the length of the CSI request field is 0 bits, the first set may include: the bit state of the UL-SCH field is 0; if the length of the CSI request field is greater than 0 bits, the first set may include: The bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0. At this time, as a possible implementation manner, the first DCI includes the third information. As another possible implementation, the CRC of the first DCI is scrambled by the first RNTI, and the first DCI includes the third information; or, the CRC of the first DCI is scrambled by the second RNTI, and the first DCI includes the fourth information .

It should be understood that, if the length of the CSI request field is 0 bits, the first set may include: the bit state of the UL-SCH field is 0, and it can be understood that the first set includes: the bit state of the UL-SCH field is 0, and the length of the CSI request field is 0 bits.

When the first DCI scrambled by the CRC by the first RNTI includes the fourth information, the second set may include a combination of states of the UL-SCH field and the CSI request field other than the first set.

When the first DCI whose CRC is scrambled by the second RNTI includes the third information, the third set may be the same as the state combination of the UL-SCH field and the CSI request field included in the first set.

(2) For the solution that the terminal device determines that the first DCI also includes the third information or the fourth information according to the second information only:

It should be understood that, according to the foregoing, the first DCI including the third information is equivalent to the first DCI for triggering an aperiodic RS resource set with no data and no CSI, and the first DCI including the fourth information is equivalent to the first DCI A DCI is used for triggering of aperiodic RS resource sets with data and/or with CSI. Therefore, the second information is used to indicate that the first DCI also includes third information or fourth information, which is equivalent to that the second information is used to indicate whether the first DCI has/has data scheduling, which is equivalent to the UL-SCH field and the CSI The state combination of the request field is used to indicate whether the first DCI has data scheduling or not.

Exemplarily, the determination of DCI presence/absence data scheduling according to the state combination of the UL-SCH field and the CSI request field may be as shown in Table 3. Among them, the bit status of the UL-SCH field is 0 and the length of the CSI request field is 0 bits, and the bit status of the UL-SCH field is 0 and the bit status of the CSI request field is all 0, and the corresponding DCI function is no data scheduling ( Including no data and no CSI); other state combinations correspond to DCI with data scheduling (with data and/or with CSI).

table 3

In Table 3, the state combinations corresponding to DCI with data scheduling belong to the second set. For example, referring to Table 3, the second set may include: the length of the UL-SCH field is 0 bits and the length of the CSI request field is 0 bits; or, the length of the UL-SCH field is 0 bits and the bit status of the CSI request field is not all 0; Or, the length of the UL-SCH field is 0 bits and the bit status of the CSI request field is all 0; or, the bit status of the UL-SCH field is 1 and the length of the CSI request field is 0 bits; or, the bit status of the UL-SCH field is 1 And the bit status of the CSI request field is not all 0; or, the bit status of the UL-SCH field is 1 and the bit status of the CSI request field is all 0; or, the bit status of the UL-SCH field is 0 and the bit status of the CSI request field is not all 0 .

It should be understood that the second set includes: the UL-SCH field length is 0 bits and the bit status of the CSI request field is not all 0. It can be understood that when the UL-SCH field length is 0 bits, the second set includes: CSI request The field bit state is not all 0. The second set includes: the length of the UL-SCH field is 0 bits and the bit status of the CSI request field is all 0. It can be understood that when the length of the UL-SCH field is 0 bits, the second set includes: the bit status of the CSI request field is all 0. The second set includes: the length of the CSI request field is 0 bits and the bit state of the UL-SCH field is 1. It can be understood that when the length of the CSI request field is 0 bits, the second set includes: the bit state of the UL-SCH field is 1. The second set includes: the length of the CSI request field is 0 bits and the bit state of the UL-SCH field is 0. It can be understood that when the length of the CSI request field is 0 bits, the second set includes: the bit state of the UL-SCH field is 0.

It should be noted that, in the embodiment of the present application, for the solution of indicating the second information by using the state combination of the UL-SCH field and/or the CSI request field, it can be explained with reference to the state combination in Table 3. Moreover, the explanation of the state combinations in Table 3 is also applicable to the above schemes (1) and (3), that is, the terminal device determines that the first DCI also includes the third DCI according to the CRC information and the second information of the first DCI. In the scheme of the information or the fourth information, the explanation of the second information can also refer to Table 3.

Optionally, in the above scheme in which the combination of the states of the UL-SCH field and the CSI request field indicates the second information, when the first DCI is used to trigger the aperiodic RS resource set with data scheduling, the first DCI also includes Fourth information, the fourth information is related to data scheduling. In this implementation, the fourth information may include: FDRA information, TDRA information, frequency hopping FH identification information, MCS information, new data indicator new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, 1st downlink assignment index information, second downlink assignment index information, 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal Relationship PTRS-DMRS association information, beta bias indication information, DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC command for scheduled PUSCH information, open-loop power control parameter set One or more items of indication information, priority indication information, and other information.

It should be noted that, in the embodiment of the present application, when the terminal device determines that the first DCI includes the fourth information, it is equivalent to that the terminal device determines that the first DCI does not include the third information. Therefore, when the first DCI includes the fourth information, the first DCI does not include one or more of the following information: available time slot information for RS transmission, time slot offset information, RS symbol-level time information, Time domain behavior information for RS transmission, a set of carrier information for RS transmission, frequency domain resource information, partial bandwidth information, power control information, space domain parameter information, and RS trigger status information.

(3) For the scheme in which the terminal device determines that the first DCI also includes the third information or the fourth information only according to the CRC information of the first DCI, the field indicating the second information can be regarded as the fourth information.

It should be understood that, according to the foregoing description, in this case, the first DCI includes the fourth information. In this implementation, the fourth information may include: UL-SCH indication information, CSI request information, FDRA information, TDRA information, frequency hopping (FH) identification information, MCS information, new data indicator information, redundant Additional version RV information, hybrid automatic repeat request HARQ processing number information, 1st downlink assignment index information, 2nd downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code Block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information, DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power One or more items of control command TPC command for scheduled PUSCH information, open-loop power control parameter set indication information, priority indication information and other information.

As a possible implementation manner, the first DCI may also indicate the second information according to a state combination of the FDRA field and/or the FH identification field. In other words, the second information includes the FDRA field and/or the FH identification field. It should be noted that in this implementation, the DCI scrambled by the first RNTI and the DCI scrambled by the second RNTI may have the same state combinations when the third information is included, that is, the first set may be the same as the first set. Three sets are the same.

As a possible implementation manner, when the CRC of the first DCI is scrambled by the first RNTI, the first DCI indicates the second information according to a state combination of the FDRA field and/or the FH identification field. In other words, the second information includes the FDRA field and/or the FH identification field. It should be noted that in this implementation, the DCI scrambled by the first RNTI and the DCI scrambled by the second RNTI may have different state combinations when the third information is included, that is, the first set may be the same as The third set is not the same.

Optionally, the first set may include: the resource allocation type is the first allocation type, and the bit status of the FDRA field is all 0; or, the resource allocation type is the second allocation type, and the bit status of the FDRA field is all 1; or, The resource allocation type is the second allocation type, the bit state of the FDRA field belongs to the second bit state set, and the bit state of the FH field is 1. Wherein, the resource allocation type is configured by high-level configuration signaling. For example, the first allocation type refers to the resource allocation type type0 configured by the RRC through the high layer parameter PUSCH-config, and the second allocation type refers to the resource allocation type type1 configured by the high layer parameter PUSCH-config. The second bit state set is used to indicate that resource allocation is full bandwidth, or in other words, the second bit state set is used to indicate that the frequency domain resource of data is the entire bandwidth related to BWP, or in other words, the second bit state set is used to indicate data. The frequency domain resource is the entire available bandwidth, or in other words, the second set of bit states is used to indicate that the frequency domain resource of the data is the entire bandwidth. As a possible implementation manner, the second set of bit states includes other bit states of the FDRA field that are not all 0s and not all 1s. It should be understood that when the lengths of the FDRA fields are different, the second bit state sets of the FDRA fields may be different. In addition, the third set may be the same as the first set, or may be different from the first set, which will not be repeated here.

It should be noted that when the resource allocation type is type0, the FDRA field is in the form of a bitmap, and the FDRA field is all 0s, indicating that there is no resource allocation, which is a meaningless indication; when the resource allocation type is 1, the FDRA field is all A state of 1 is reserved and a meaningless indication. Therefore, in the embodiment of the present application, these two states are used to indicate whether the first DCI is used to trigger the aperiodic RS resource set without data scheduling. In addition, when the FDRA field is not in the state of all 0s and all 1s, the FDRA field is meaningful and cannot be used alone to indicate the second information. In this case, the embodiment of this application combines the bit state of the FH field with 1 to Indicates whether the first DCI is used to trigger the aperiodic RS resource set without data scheduling.

Optionally, in the above scheme in which the combination of states of the FDRA field and/or the FH identification field indicates the second information, when the first DCI is used to trigger an aperiodic RS resource set with data scheduling, the fourth information may include : UL-SCH indication information, CSI request information, TDRA information, MCS information, new data indicator new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink assignment index 1st downlink assignment index information, second downlink assignment indication 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS- DMRS association information, beta beta bias indication information, DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC command for scheduled PUSCH information, open-loop power control parameter set indication information, One or more items of information such as priority indication information.

It should be understood that the CRC of the first DCI is scrambled by the second RNTI, and the FDRA field is all 0s or the FDRA field is all 1s is one of the conditions for judging whether the DCI is used to activate the semi-persistent CSI or deactivate the semi-persistent CSI. In this embodiment, for the case where the CRC of the first DCI is scrambled by the first RNTI, the FDRA field is all 0 or the FDRA field is all 1 to determine that the first DCI contains the third field or the fourth field, which can be kept the same as the second The consistency of DCI scrambled by RNTI maintains good compatibility and reduces UE complexity.

As a possible implementation manner, the first DCI may indicate the second information through the state of the first field. It should be understood that in this implementation, when the first DCI with different scrambling methods for CRC includes the third information, the second information in the first DCI may be the same, that is, the state of the first field can be the same. In other words, the above-mentioned first set and the above-mentioned third set may be the same. Therefore, in this implementation manner, the terminal device also does not need to consider the scrambling manner of the first DCI. Optionally, the above-mentioned first set may include the bit state of the first field belonging to the first bit state set, and the first bit state set is used to indicate that the first field of the second information corresponds to when the first DCI includes the third information. bit state. Optionally, the first field is an independent field, and is only used to indicate that the first DCI contains the third information or the fourth information. For example, the bit length of the first field is 1 bit, and the first bit state set is 0.

As a possible implementation manner, the first set is not related to the first bit state set.

It should be understood that, in the above implementations, the CRC adopts DCI of different scrambling methods in the same method for judging presence/absence of data scheduling, all of which are judged by the bit status of the first field, which is beneficial to the length of DCI of different scrambling methods. Alignment reduces the complexity of blind detection.

As a possible implementation manner, the first DCI includes a first field. The CRC of the first DCI is scrambled by the first RNTI, and the second information includes one or more of the following fields: UL-SCH field, CSI request field, and first field. Optionally, the first set includes: the bit state of the UL-SCH field is 0, the CSI request field is all 0, and the bit state of the first field belongs to the first bit state set. Optionally, the length of the CSI request field is 0 bits, and the first set includes: the bit state of the UL-SCH field is 0, and the bit state of the first field belongs to the first bit state set; the length of the CSI request field is greater than 0 bits, and the first set The set includes: the bit state of the UL-SCH field is 0, the CSI request field is all 0, and the bit state of the first field belongs to the first bit state set. For example, the first field is the 1st downlink assignment index field. The first bit state set is predefined or configured by a high-level parameter, for example, the first bit state set is all 0s.

It should be understood that, in the above implementation manner, the second information includes the first field except the UL-SCH field and the CSI request field, and the first field can be used as a virtual parity bit to improve detection accuracy and reduce false alarm probability. The first DCI contains the 1st downlink assignment index field, and the bit length of the 1st downlink assignment index field is determined according to the high-level parameters. The first field is the 1st downlink assignment index field, which can occupy a small number of bits to realize the function of the virtual parity bit, thereby having More bits are available for redefinition.

As a possible implementation manner, the first DCI includes a first field. The CRC of the first DCI is scrambled by the first RNTI, and the second information includes one or more of the following fields: UL-SCH field, CSI request field, and first field. The CRC of the first DCI is scrambled by the second RNTI, and the second information includes the first field. For example, the first field is an independent field and is only used to indicate that the first DCI contains the third information or the fourth information. For example, the bit length of the first field is 1 bit, and the first bit state set is 0. Optionally, the first set includes: the bit state of the UL-SCH field is 0, the CSI request field is all 0, and the bit state of the first field belongs to the first bit state set. Optionally, when the length of the CSI request field is 0 bits, the first set includes: the bit state of the UL-SCH field is 0, and the bit state of the first field belongs to the first bit state set; when the length of the CSI request field is greater than 0 Bits, the first set includes: the bit state of the UL-SCH field is 0, the CSI request field is all 0, and the bit state of the first field belongs to the first bit state set.

It should be understood that in the above implementation, when the CRC of the first DCI is scrambled by the first RNTI, the second information includes the first field except the UL-SCH field and the CSI request field, and the first field can be used as a virtual parity bit , improve detection accuracy and reduce false alarm probability. When the CRC of the first DCI is scrambled by the second RNTI, the second information is the first field, which can ensure the alignment of DCI lengths using different scrambling methods for the CRC, and reduce the complexity of blind detection.

It should be understood that the first field may be a field having other indication functions in the first DCI, or may be an identification field in the first DCI. By using the original fields in the first DCI, the bits of the first DCI can be fully utilized, saving signaling resources. However, using a separate identification field in the first DCI can facilitate the implementation of the solution. Both solutions are acceptable, which is not limited in this embodiment of the present application. In addition, when the above-mentioned first field is an independent identification field in the first DCI, the length of the first field and the meaning of the bit state indication can be freely defined, which is not limited in this embodiment of the present application. When the above-mentioned first field is a field with other indication functions in the first DCI, the meaning of its bit state indication may be configured by a high layer or stipulated by a predefined rule.

For example, take the first field as an example of a field with other indication functions in the first DCI. For example, the first field may be an MCS field. The MCS field has 5 bits in total and can indicate 32 states, but there are 4 of them Status is reserved. For example, some status indications of the MCS may be as shown in Table 4.

Table 4

Referring to Table 4, the modulation sequence corresponding to the state where the MCS index number is 0 is q, the indicated target code rate is 240/q, and the indicated spectral efficiency is 0.2344. The states with MCS index numbers 1-27 are not shown in Table 4. The states with the MCS index number 28-31 are reserved bits, which belong to the idle state, and are not used to indicate the target code rate and spectral efficiency. In the embodiment of the present application, the reserved bits of these 4 states may be redefined to indicate the second information, and the above-mentioned first set of bit states may include at least one of the 4 idle states. For example, the first bit state set includes any of the following: the bit state of the MCS field corresponds to an index number of 28, the bit state of the MCS field corresponds to an index number of 29, the bit state of the MCS field corresponds to an index number of 30, and the bit state of the MCS field corresponds to an index number of 30. The corresponding index number of the state is 31.

For another example, taking the first field as an independent identification field as an example, for example, the length of the first field may be 1 bit, and the above-mentioned first bit state set may include that the bit state of the first field is 0.

Optionally, in the above scheme in which the state of the first field indicates the second information, the fourth information may include: FDRA information, FH identification information, UL-SCH indication information, CSI request information, TDRA information, MCS information, new Data indication new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink assignment index 1st downlink assignment index information, second downlink assignment index 2st downlink assignment index information, RS resource indication information , precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information, DMRS sequence initialization information, downlink feedback The information identifies one or more of information such as DFI flag information, transmission power control command TPC command for scheduled PUSCH information of the scheduled uplink shared channel, open-loop power control parameter set indication information, and priority indication information.

As a possible implementation manner, the first DCI may jointly indicate the second information through the UL-SCH field, the CSI request field, and the state of the first field. Adding an additional field to jointly indicate the second information can improve the detection accuracy of the terminal device and reduce the false alarm probability.

Optionally, no matter which scrambling method is used for the CRC of the first DCI, the first DCI indicates the second information in a manner of jointly indicating the state of the UL-SCH field, the CSI request field and the first field. It should be understood that in this implementation manner, the first set and the third set may be the same. Based on this solution, the above first set may include: the bit state of the UL-SCH field is 0, and the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set; or, the UL-SCH field The bit state of is 0, and the bit state of the CSI request field is all 0, and the bit state of the first field belongs to the first bit state set. The third set may be the same as the first set, and details are not repeated here.

Optionally, when the CRC information of the first DCI is scrambled by the first RNTI, the first DCI indicates the second information by means of a joint indication of the UL-SCH field, the CSI request field, and the state of the first field; and when the first When the CRC information of the DCI is scrambled by using the second RNTI, the first DCI indicates the second information only through the state of the first field. In this case, the first set and the third set are different. In this case, the first set may include: the bit state of the first field belongs to the first bit state set. The third set includes: the bit state of the UL-SCH field is 0, and the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set; or, the bit state of the UL-SCH field is 0, And the bit state of the CSI request field is all 0, and the bit state of the first field belongs to the first bit state set.

Optionally, when the CRC information of the first DCI is scrambled with the first RNTI, the first DCI only indicates the second information through the state of the first field; and when the CRC information of the first DCI is scrambled with the second RNTI, The first DCI jointly indicates the second information through the UL-SCH field, the CSI request field and the state of the first field. In this case, the first set and the third set are different. In this case, the first set may include: the bit state of the UL-SCH field is 0, and the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set; or, the bit state of the UL-SCH field The bit state is 0, and the bit state of the CSI request field is all 0, and the bit state of the first field belongs to the first bit state set. The third set includes: the bit state of the first field belongs to the first bit state set.

It should be noted that, in the above scheme of indicating the second information through the combination of the UL-SCH field, the CSI request field and the first field, when the CRC information of the first DCI is scrambled by the first RNTI, the first field may It is the 1st downlink assignment index field. In this case, the first set may include: the bit state of the UL-SCH field is 0, and the length of the CSI request field is 0 bits, and the bit state of the 1st downlink assignment index field belongs to the first bit state set; or, UL- The bit status of the SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the 1st downlink assignment index field belongs to the first bit status set. The first set of bit states can be all 0s, or all 1s, or a combination of special bit states.

In addition, in this solution, when the fourth information included in the first DCI of the CRC is scrambled by the first RNTI, the fourth information may include: FDRA information, TDRA information, FH identification information, MCS information, new data indicator new data indicator Information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, second downlink allocation indication 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission Information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information, DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC One or more of information such as command for scheduled PUSCH information, open-loop power control parameter set indication information, and priority indication information.

It should be understood that the first DCI may also jointly indicate the second information according to the states of the FDRA field, the FH field, and the first field. This manner is the same as the principle of the joint indication of the states of the UL-SCH field, the CSI request field, and the first field above, and will not be repeated in this embodiment of the present application.

It should be noted that the first DCI can also jointly indicate the second information through more fields, for example, through the FDRA field, the hybrid automatic repeat request HARQ process number (process number) field, the MCS field and the special field of the redundancy version field Status to indicate the second information. This is not limited in this embodiment of the application.

It should be noted that, in the embodiment of the present application, the second information indicated by the special state of the FDRA field, the hybrid automatic repeat request HARQ process number (process number) field, the MCS field, and the redundancy version RV field can not only be used to determine The first DCI includes third information or fourth information, which may also be used to indicate other functions of the first DCI.

For example, for the first DCI scrambled by CRC using SP-CSI-RNTI, the FDRA field, the HARQ process number field, the MCS field, and the special status of at least some of the fields in the redundancy version field can be used to indicate that the first DCI uses for the activation or deactivation of SP-CSI. For example, the status used to indicate the activation of SP-CSI may be as shown in Table 5, and the activation of SP-CSI may be indicated jointly according to the statuses of the HARQ process number field and the redundancy version field.

table 5

the	DCI format 0_1或format 0_2DCI format 0_1 or format 0_2
HARQ进程数字段HARQ process number field	全0all 0
冗余版本字段Redundant version field	全0all 0

Referring to Table 5, the format of the first DCI scrambled by the CRC using SP-CSI-RNTI is DCI format 0_1 or format 0_2, when the HARQ process number field is all 0, and the redundancy version field is all 0, the first DCI Used to indicate activation of SP-CSI.

The status used to indicate deactivation of SP-CSI may be as shown in Table 6, and deactivation of SP-CSI may be indicated according to the HARQ process number field, MCS field, FDRA field and redundancy version field.

Table 6

Referring to Table 6, when the HARQ process number field is all 0, the MCS field is all 1, the redundancy version field is all 0, and the FDRA field is the third bit state set, the first DCI is used to indicate deactivation of SP-CSI . Wherein, the third bit state set may include: the resource allocation type is type 0, and the FDRA field is all 0. Or, the resource allocation type is type 1, and the FDRA field is all 1s.

It should be understood that, in the embodiment of the present application, the first DCI has the above two functions of triggering the RS resource set with data scheduling and triggering the RS resource set without data scheduling. However, since the terminal device does not expect that the received DCI is neither used for data scheduling nor used for triggering the RS resource set, the first DCI will not have the function of neither triggering the RS resource set nor performing data scheduling, that is, the first DCI The carried information will not indicate that the RS resource set is not triggered and there is no data scheduling.

In this embodiment of the application, when the format of the first DCI is DCI format 0_1, the content of the first DCI does not include any of the following: the length of the CSI request field in the first DCI is 0 bits, and the bits of the UL-SCH indication field The state is all 0, and the bit state of the RS request field is all 0; the bit state of the UL-SCH indication field in the first DCI is all 0, and the bit state of the CSI request field is all 0, and the bit state of the RS request field Status is all 0s.

In this embodiment of the application, when the format of the first DCI is DCI format 0_2, the content of the first DCI does not include any of the following items: the length of the CSI request field in the first DCI is 0 bits, and the bit status of the UL-SCH indication field is all 0, and the bit state of the RS request field is all 0; the bit state of the UL-SCH indication field in the first DCI is all 0, and the bit state of the CSI request field is all 0, and the bit state of the RS request field is all 0; the length of the CSI request field in the first DCI is 0 bits, the bit state of the UL-SCH indication field is 0, and the length of the RS request field is 0 bits; the bit state of the UL-SCH indication field is 0, and the CSI The bit state of the request field is all 0, and the length of the RS request field is 0 bits.

In this embodiment of the application, when the format of the first DCI is DCI format 0_1, unless the CRC of the first DCI is scrambled with SP-CSI-RNTI, the content of the first DCI does not include: the bit state of the RS request field is All 0, and the bit state of the UL-SCH indication field is 0, and the bit state of the CSI request field is all 0.

It should be noted that, in the case that the content of the first DCI is not included, it can be understood that the terminal device does not expect to receive the DCI including the content. The first DCI does not satisfy any of the following items, which is equivalent to that the terminal device does not expect the first DCI to satisfy any of the following items.

It should be noted that the actions of the terminal device in the above method embodiments can be executed by the processor 501 in the communication device 50 shown in FIG. 5 calling the application code stored in the memory 504 to instruct the terminal device to execute. The processor 501 in the communication device 50 shown in FIG. 5 can call the application program code stored in the memory 504 to instruct the access network device to execute the action, which is not limited in this embodiment.

It can be understood that, in the above embodiments, the methods and/or steps implemented by the terminal equipment may also be implemented by components (such as chips or circuits) that can be used for the terminal equipment; the methods and/or steps implemented by the access network equipment The steps may also be implemented by components (such as chips or circuits) that can be used in access network equipment.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various devices. Correspondingly, the embodiment of the present application further provides a communication device, and the communication device is used to implement the above-mentioned various methods. The communication device may be the terminal device in the above method embodiment, or a device including the above terminal device, or a component that can be used in the terminal device; or, the communication device may be the access network device in the above method embodiment, or An apparatus including the above-mentioned access network equipment, or a component that can be used for the access network equipment. It can be understood that, in order to realize the above functions, the communication device includes hardware structures and/or software modules corresponding to each function. Those skilled in the art should easily realize that the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

The embodiment of the present application may divide the functional modules of the communication device according to the above method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation.

FIG. 7 shows a schematic structural diagram of a communication device 70 . The communication device 70 includes a transceiver module 701 and a processing module 702 . The transceiver module 701 can also be referred to as a transceiver unit to implement a transceiver function, for example, it can be a transceiver circuit, a transceiver, a transceiver or a communication interface.

Wherein, taking the communication device 70 as the terminal device in the above method embodiment as an example:

The transceiver module 701 is configured to acquire first downlink control information DCI. The first DCI includes an RS request field, where the RS request field is used to indicate a triggered RS resource set. The first DCI may further include first information and second information, where the first information is information related to RS transmission corresponding to the triggered RS resource set. The processing module 702 is configured to determine, according to the CRC information and/or the second information of the first DCI, that the first DCI further includes third information or fourth information. The transceiver module 701 is further configured to send the RS according to the first information and/or the third information.

Optionally, the processing module 702 is configured to further include third information or fourth information according to the CRC information of the first DCI and/or the second information. When scrambled by the first RNTI and the second information belongs to the first set, it is determined that the first DCI further includes the third information. Alternatively, the processing module 702 is configured to determine that the first DCI further includes fourth information when the CRC of the first DCI is scrambled by the first RNTI and the second information belongs to the second set. Alternatively, the processing module 702 is configured to determine that the first DCI further includes third information when the CRC of the first DCI is scrambled by the second RNTI and the second information belongs to the third set.

Optionally, the processing module 702 is configured to determine according to the CRC information of the first DCI and/or the second information that the first DCI further includes third information or fourth information, specifically including: a processing module 702 configured to determine when the second information belongs to In the first set, it is determined that the first DCI also includes third information. Alternatively, the processing module 702 is configured to determine that the first DCI further includes fourth information when the second information belongs to the second set.

Optionally, the processing module 702 is configured to determine according to the CRC information and/or the second information of the first DCI that the first DCI further includes third information or fourth information, specifically including: a processing module 702 configured to, when the first DCI When the CRC is scrambled by the second RNTI and the second information belongs to the first set, it is determined that the first DCI further includes the third information.

Optionally, the transceiver module 701 is configured to send the RS according to the first information and/or the third information, specifically including: the transceiver module 701, configured to send the RS according to the first information and the third information when the first DCI includes the third information RS. Alternatively, the transceiving module 701 is configured to, when the first DCI includes the fourth information, the terminal device send the RS according to the first information.

The transceiver module 701 is configured to send first downlink control information DCI. The transceiver module 701 is further configured to receive the RS according to the first information and/or the third information.

Optionally, the transceiver module 701 is configured to receive the RS according to the first information and/or the third information, and specifically includes: the transceiver module 701 is configured to receive the RS according to the first information and the third information when the first DCI includes the third information RS. Alternatively, the transceiving module 701 is configured to, when the first DCI includes the fourth information, the terminal device receive the RS according to the first information.

It should be noted that all relevant content of the steps involved in the above method embodiments can be referred to the function description of the corresponding function module, and will not be repeated here.

In this embodiment, the communication device 70 is presented in the form of dividing various functional modules in an integrated manner. A "module" here may refer to a specific ASIC, a circuit, a processor and a memory executing one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the functions described above. In a simple embodiment, those skilled in the art can imagine that the communication device 70 can take the form of the communication device 50 shown in FIG. 5 .

For example, the processor 501 in the communication device 50 shown in FIG. 5 can call the computer-executed instructions stored in the memory 504, so that the communication device 50 executes the RS transmission method in the above method embodiment.

Specifically, the functions/implementation process of the transceiver module 701 and the processing module 702 in FIG. 7 can be implemented by the processor 501 in the communication device 50 shown in FIG. 5 invoking computer-executed instructions stored in the memory 504 . Or, the function/implementation process of the processing module 702 in FIG. 7 can be realized by the processor 501 in the communication device 50 shown in FIG. /The implementation process can be implemented through the communication interface 503 in the communication device 50 shown in FIG. 5 .

Since the communication device 70 provided in this embodiment can execute the above-mentioned RS transmission method, the technical effect it can obtain can refer to the above-mentioned method embodiment, and details are not repeated here.

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in 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, computer, server, or data center Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or may be a data storage device including one or more servers, data centers, etc. that can be integrated with the medium. The available medium may be a magnetic medium (such as a floppy disk, a hard disk, or a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (Solid State Disk, SSD)), etc.

As used in this application, the terms "component," "module," "system" and the like are intended to refer to a computer-related entity, which may be hardware, firmware, a combination of hardware and software, software, or an operating system. software. For example, a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. As an example, both an application running on a computing device and the computing device can be components. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures thereon. These components can be communicated through, for example, according to having one or more packets of data (e.g., data from a component that interacts with another component in a local system, a distributed system, and/or in the form of network to interact with other systems) to communicate with local and/or remote processes.

Various aspects, embodiments or features are presented herein in terms of systems that can include a number of devices, components, modules and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. In addition, combinations of these schemes can also be used.

In addition, in the embodiments of the present application, the word "exemplary" is used as an example, illustration or illustration. Any embodiment or design described herein as "example" is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word example is intended to present concepts in a concrete manner.

In this embodiment of the present application, information, signal, message, and channel may sometimes be used interchangeably. It should be noted that when the differences are not emphasized, the meanings they intend to express are consistent. "的(of)", "corresponding (corresponding, relevant)" and "corresponding (corresponding)" can sometimes be used interchangeably. It should be pointed out that when the difference is not emphasized, the meanings they intend to express are consistent. "System" and "network" can sometimes be used interchangeably. When the difference is not emphasized, the meanings they intend to express are consistent. For example, "communication system" also refers to "communication network".

The network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. For the evolution of architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A reference signal RS transmission method, characterized in that the method comprises:

Acquiring first downlink control information DCI; the first DCI includes an RS request field, first information and second information, and the RS request field is used to indicate a triggered RS resource set; the first information is related to the RS-related information corresponding to the triggered RS resource set;

determining that the first DCI further includes third information or fourth information according to the cyclic redundancy check CRC information of the first DCI and/or the second information;

sending the RS according to the first information and/or the third information.
The method according to claim 1, characterized in that,

The first information includes one or more of the following information:

Available time slot information, transmit power control information, carrier indication information, uplink or supplementary uplink indication information, partial bandwidth indication information.
The method according to claim 1 or 2, characterized in that, according to the CRC information of the first DCI and/or the second information, determining that the first DCI further includes third information or fourth information ,include:

The CRC of the first DCI is scrambled by the first radio network temporary identifier RNTI, and the second information belongs to the first set, then the first DCI also includes the third information; or,

The CRC of the first DCI is scrambled by the first RNTI, and the second information belongs to the second set, then the first DCI also includes the fourth information; or,

The CRC of the first DCI is scrambled by the second RNTI, and the second information belongs to a third set, then the first DCI further includes the third information.
The method according to claim 1 or 2, characterized in that, according to the CRC information of the first DCI and/or the second information, determining that the first DCI further includes third information or fourth information ,include:

The second information belongs to the first set, then the first DCI also includes the third information; or,

The second information belongs to the second set, and the first DCI also includes the fourth information.
The method according to claim 1 or 2, characterized in that, according to the CRC information of the first DCI and/or the second information, determining that the first DCI further includes third information or fourth information ,include:

The CRC of the first DCI is scrambled by the second RNTI, and the first DCI further includes the fourth information.
The method according to any one of claims 3-5, characterized in that,

The first DCI includes the third information, and the first DCI is used to trigger an aperiodic RS resource set without data and without CSI; or,

The first DCI includes the fourth information, and the first DCI is used to trigger an aperiodic RS resource set with data and/or with CSI.
The method according to any one of claims 3-6, characterized in that,

The first RNTI is a cell radio network temporary identifier C-RNTI;

The second RNTI includes one or more of the following: semi-static channel state information wireless network temporary identifier SP-CSI-RNTI, configured and scheduled wireless network temporary identifier CS-RNTI, modulation and coding mode cell wireless network temporary identifier MCS-C -RNTI.
The method according to any one of claims 3-6, characterized in that,

The third information includes one or more of the following information:

Available slot information for RS transmission, slot offset information, RS symbol-level time information, time domain behavior information for RS transmission in multiple symbols, a set of carrier information for RS transmission, frequency domain resource information, and partial bandwidth BWP information , power control information, space domain parameter information, and RS trigger status information.
The method according to claim 3, 4, 6 or 7, characterized in that,

The length of the CSI request field is 0 bits, then the first set includes: the bit state of the UL-SCH field is 0;

If the length of the CSI request field is greater than 0 bits, the first set includes: the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0.
The method according to claim 3, 4, 6 or 7, wherein the first DCI further comprises a first field;

The first set includes:

The bit state of the UL-SCH field is 0, and the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set; or,

The bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the first field belongs to the first bit status set;

The third set includes: the bit state of the first field belongs to the first bit state set.
The method according to claim 3, 4, 6 or 7, wherein the CRC of the first DCI is scrambled by the first RNTI, and the first DCI includes a 1st downlink assignment index field ;

The first set includes:

The bit status of the UL-SCH field is 0, and the length of the CSI request field is 0 bits, and the bit status of the 1st downlink assignment index field is all 0; or,

The bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the 1st downlink assignment index field is all 0.
The method according to any one of claims 9-11, characterized in that,

The fourth information includes one or more of the following information:

Uplink shared channel UL-SCH indication information, channel state information CSI request information, frequency domain resource allocation FDRA information, time domain resource allocation TDRA information, frequency hopping FH identification information, modulation and coding mode MCS information, new data indication new data indicator information, Redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink assignment index 1st downlink assignment index information, second downlink assignment indication 2st downlink assignment index information, RS resource indication information, precoding information and layer number Information, antenna port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information, demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI Flag information, transmission power control command TPC command for scheduled PUSCH information of the scheduled uplink shared channel, open-loop power control parameter set indication information, and priority indication information.
The method according to claim 3, 4, 6 or 7, wherein the format of the first DCI is DCI format 0_1, and the first DCI includes a frequency domain resource allocation FDRA field and/or a frequency hopping FH field ;

The first set includes:

The resource allocation type is the first allocation type, and the bit status of the FDRA field is all 0; or,

The resource allocation type is the second allocation type, and the bit status of the FDRA field is all 1; or,

The resource allocation type is the second allocation type, the bit status of the FDRA field belongs to the second bit status set, and the bit status of the FH field is 1, and the second bit status set indicates that the resource allocation is full bandwidth.
The method according to claim 13, characterized in that,

The fourth information includes one or more of the following information:

Uplink shared channel UL-SCH indication information, channel state information CSI request information, time domain resource allocation TDRA information, MCS information, new data indication new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, First downlink assignment index 1st downlink assignment index information, second downlink assignment indication 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference Signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information, demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC command for Scheduled PUSCH information, open-loop power control parameter set indication information, and priority indication information.
The method according to any one of claims 1-14, wherein the sending the RS according to the first information and/or the third information comprises:

The first DCI also includes the third information, then the RS is sent according to the first information and the third information; or,

The first DCI further includes the fourth information, then the RS is sent according to the first information.
The method according to any one of claims 1-15, characterized in that,

The format of the first DCI is DCI fomat 0_1 or DCI fomat 0_2, and the first DCI does not meet any of the following:

The bit status of the RS request field is all 0, and the length of the CSI request field is 0 bits, and the bit status of the UL-SCH indication field is all 0; the bit status of the RS request field is all 0, and the bit status of the UL-SCH indication field The status is all 0, and the bit status of the CSI request field is all 0.
The method according to any one of claims 1-16, characterized in that,

The format of the first DCI is DCI format 0_2, and the first DCI does not meet any of the following:

The length of the RS request field is 0 bits, and the length of the CSI request field is 0 bits, and the bit status of the UL-SCH indication field is 0;

The length of the RS request field is 0 bits, and the bit status of the UL-SCH indication field is 0, and the bit status of the CSI request field is all 0.
The method according to any one of claims 1-17, characterized in that,

When the format of the first DCI is DCI format 0_1, and the scrambling mode of the CRC of the first DCI does not include SP-CSI-RNTI scrambling, the first DCI does not meet the following conditions:

The bit state of the RS request field is all 0, the bit state of the UL-SCH indication field is 0, and the bit state of the CSI request field is all 0.
A reference signal RS transmission method, characterized in that the method comprises:

Sending first downlink control information DCI; the first DCI includes an RS request field, first information, and second information, where the RS request field is used to indicate a triggered RS resource set, and the first information is related to Information related to RS transmission corresponding to the triggered RS resource set; the second information and/or CRC information of the first DCI may be used to indicate that the first DCI also includes third information or fourth information;

Receive an RS according to the first information and/or the third information.
The method of claim 19, wherein,

The first information includes one or more of the following information:

Available time slot information, transmit power control information, carrier indication information, uplink or supplementary uplink indication information, partial bandwidth indication information.
The method according to claim 20, wherein the first DCI includes the third information or the fourth information is determined according to the second information and/or CRC information of the first DCI ,include:

The CRC of the first DCI is scrambled by a first radio network temporary identifier RNTI, and the second information belongs to the first set, then the first DCI includes the third information; or,

The CRC of the first DCI is scrambled by the first RNTI, and the second information belongs to the second set, then the first DCI includes the fourth information; or,

The CRC of the first DCI is scrambled by the second RNTI, and the second information belongs to a third set, then the first DCI includes the third information.
The method according to claim 20 or 21, wherein the first DCI includes the third information or the fourth information is CRC information based on the second information and/or the first DCI identified, including:

The second information belongs to the first set, then the first DCI includes the third information; or,

The second information belongs to the second set, and the first DCI includes the fourth information.
The method according to claim 20 or 21, wherein the first DCI includes the third information or the fourth information is CRC information based on the second information and/or the first DCI identified, including:

The CRC of the first DCI is scrambled by the second RNTI, and the first DCI includes the fourth information.
The method according to any one of claims 21-23, characterized in that,

The first DCI includes the third information, and the first DCI is used to trigger an aperiodic RS resource set without data and without CSI; or,

The first DCI includes the fourth information, and the first DCI is used to trigger an aperiodic RS resource set with data and/or with CSI.
The method according to any one of claims 20-24, characterized in that,

The first RNTI is a cell radio network temporary identifier C-RNTI;

The second RNTI includes one or more of the following: semi-static channel state information wireless network temporary identifier SP-CSI-RNTI, configured and scheduled wireless network temporary identifier CS-RNTI, modulation and coding mode cell wireless network temporary identifier MCS-C -RNTI.
The method according to any one of claims 20-24, characterized in that,

The third information includes one or more of the following information:

Available slot information for RS transmission, slot offset information, RS symbol-level time information, time domain behavior information for RS transmission in multiple symbols, a set of carrier information for RS transmission, frequency domain resource information, and partial bandwidth BWP information , power control information, space domain parameter information, and RS trigger status information.
A method according to claim 21, 22, 24, 25 or 26, characterized in that,

The length of the CSI request field is 0 bits, then the first set includes: the bit state of the UL-SCH field is 0;

If the length of the CSI request field is greater than 0 bits, the first set includes: the bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0.
The method according to claim 21, 22, 24, 25 or 26, wherein the first DCI further includes a first field;

The first set includes:

The bit state of the UL-SCH field is 0, and the length of the CSI request field is 0 bits, and the bit state of the first field belongs to the first bit state set; or,

The bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the first field belongs to the first bit status set;

The third set includes: the bit state of the first field belongs to the first bit state set.
The method according to claim 21, 22, 24, 25 or 26, wherein the CRC of the first DCI is scrambled by the first RNTI, and the first DCI includes a first downlink assignment index 1st downlink assignment index field;

The first set includes:

The bit status of the UL-SCH field is 0, and the length of the CSI request field is 0 bits, and the bit status of the 1st downlink assignment index field is all 0; or,

The bit status of the UL-SCH field is 0, and the bit status of the CSI request field is all 0, and the bit status of the 1st downlink assignment index field is all 0.
The method according to any one of claims 27-29, wherein,

The fourth information includes one or more of the following information:

Uplink shared channel UL-SCH indication information, channel state information CSI request information, frequency domain resource allocation FDRA information, time domain resource allocation TDRA information, frequency hopping FH identification information, MCS information, new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink assignment index 1st downlink assignment index information, second downlink assignment indication 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna Port information, code block group transmission information CBGTI, phase tracking reference signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information, demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, Scheduled uplink shared channel transmission power control command TPC command for scheduled PUSCH information, open-loop power control parameter set indication information, priority indication information.
The method according to claim 21, 22, 24, 25 or 26, wherein the format of the first DCI is DCI format 0_1, and the first DCI includes a frequency domain resource allocation FDRA field and/or frequency hopping FH field;

The first set includes:

The resource allocation type is the first allocation type, and the bit status of the FDRA field is all 0; or,

The resource allocation type is the second allocation type, and the bit status of the FDRA field is all 1; or,

The resource allocation type is the second allocation type, the bit state of the FDRA field belongs to the second bit state set, and the bit state of the FH field is 1, and the second bit state set is used to indicate that resource allocation is full bandwidth measurement.
The method of claim 31 wherein,

The fourth information includes one or more of the following information:

Uplink shared channel UL-SCH indication information, channel state information CSI request information, time domain resource allocation TDRA information, MCS information, new data indication new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, First downlink assignment index 1st downlink assignment index information, second downlink assignment indication 2st downlink assignment index information, RS resource indication information, precoding information and layer number information, antenna port information, code block group transmission information CBGTI, phase tracking reference Signal-demodulation reference signal relationship PTRS-DMRS association information, beta beta bias indication information, demodulation reference signal DMRS sequence initialization information, downlink feedback information identification DFI flag information, scheduled uplink shared channel transmission power control command TPC command for Scheduled PUSCH information, open-loop power control parameter set indication information, and priority indication information.
The method according to any one of claims 19-32, wherein the receiving the RS according to the first information and/or the third information comprises:

The first DCI includes the third information, then the RS is received according to the first information and the third information; or,

The first DCI includes the fourth information, then the RS is received according to the first information.
The method according to any one of claims 19-33, wherein,

The format of the first DCI is DCI fomat 0_1 or DCI fomat 0_2, and the first DCI does not meet any of the following:

The bit status of the RS request field is all 0, and the length of the CSI request field is 0 bits, and the bit status of the UL-SCH indication field is all 0;

The bit status of the RS request field is all 0, and the length of the UL-SCH indication field is 0 bits, and the bit status of the CSI request field is all 0;

The bit state of the RS request field is all 0, and the bit state of the UL-SCH indication field is all 0, and the bit state of the CSI request field is all 0.
The method according to any one of claims 19-34, wherein,

The format of the first DCI is DCI format 0_2, and the first DCI does not meet any of the following:

The length of the RS request field is 0 bits, and the length of the CSI request field is 0 bits, and the bit status of the UL-SCH indication field is 0;

The length of the RS request field is 0 bits, and the length of the UL-SCH indication field is 0 bits, and the bit status of the CSI request field is all 0;

The length of the RS request field is 0 bits, and the bit status of the UL-SCH indication field is 0, and the bit status of the CSI request field is all 0.
The method according to any one of claims 19-35, wherein,

When the format of the first DCI is DCI format 0_1, and the scrambling mode of the CRC of the first DCI does not include SP-CSI-RNTI scrambling, the first DCI does not meet the following conditions:

The bit state of the RS request field is all 0, and the bit state of the UL-SCH indication field is 0, and the bit state of the CSI request field is all 0.
A communication device, characterized in that the communication device includes: a processor and a memory;

The memory is used to store computer-executable instructions, and when the processor executes the computer-executable instructions, the communication device executes the method according to any one of claims 1-18 or 19-36.
A communication device, characterized in that the communication device includes: a processor and an interface circuit;

The interface circuit is used to receive computer execution instructions and transmit them to the processor;

The processor is configured to execute the computer-implemented instructions, so that the communication device performs the method according to any one of claims 1-18 or 19-36.
A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a computer, the computer executes any one of claims 1-18 or 19-36. one of the methods described.
A communication device, characterized by comprising a module or unit for implementing the method according to any one of claims 1-18 or 19-36.