CN115706640A

CN115706640A - RS transmission method and communication device

Info

Publication number: CN115706640A
Application number: CN202110903395.6A
Authority: CN
Inventors: 刘晓晴; 余政; 张永平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2023-02-17
Also published as: WO2023011255A1

Abstract

The embodiment of the application provides an RS transmission method and a communication device, which are used for a wireless communication scene. In the RS transmission method provided by the present application, the first DCI acquired by 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, and transmit the RS based on the first information and/or the third information. Based on the scheme, the terminal device can identify other information included in the DCI in addition to triggering the RS resource set. And, the third information related to RS transmission in the DCI is additionally indicated, and different from the first information, the terminal device transmits the RS according to the first information and the third information, which may further improve scheduling flexibility of the RS.

Description

RS transmission method and communication device

Technical Field

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

Background

In a New Radio interface (NR) of the fifth generation (5 g) mobile communication technology, the terminal device may send a Sounding Reference Signal (SRS) to the base station, so that the base station obtains uplink channel information according to the SRS sent by the terminal device. For example, the base station may configure one or more resource sets for the terminal device, and may activate or trigger a certain SRS resource set of the one or more SRS resource sets through signaling, so that the terminal device transmits the SRS on the time-frequency resource corresponding to the SRS resource set. The SRS can include periodic SRS (P-SRS), semi-persistent SRS (SP-SRS), aperiodic SRS (AP-SRS), and the like. For the AP-SRS resource set, the base station may trigger the AP-SRS resource set through Downlink Control Information (DCI), for example, the AP-SRS resource set may be triggered through an SRS request (request) field of the DCI.

When the base station triggers the AP-SRS through the DCI, the base station may also perform data scheduling or trigger channel-state information (CSI) reporting on the terminal device through the DCI. Correspondingly, the DCI includes an indication field related to data scheduling or CSI reporting. However, with the development of communication technology, there may be a case where data scheduling is not performed on the terminal device and CSI reporting is not triggered (i.e., only AP-SRS is triggered) when the AP-SRS is triggered. Therefore, when the DCI triggers the AP-SRS, the terminal device cannot distinguish whether the DCI triggers only the AP-SRS or triggers the AP-SRS while performing data scheduling or triggering CSI reporting, and cannot determine specific meanings indicated by fields other than fields related to indicating transmission of the AP-SRS in the DCI, that is, cannot determine interpretation modes of fields other than fields related to indicating transmission of the AP-SRS.

Disclosure of Invention

The embodiment of the application provides an RS transmission method and a communications apparatus, which are used to solve the problem that in the prior art, it cannot be determined whether DCI is used to trigger an RS resource set without data scheduling, so that it cannot be determined what specific meaning is indicated by fields other than a field related to an RS in DCI, and a behavior of a terminal device is ambiguous.

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

in a first aspect, an RS transmission method is provided, and a communication apparatus performing the RS transmission method may be a terminal device; but also a module, such as a chip or a chip system, for use in a terminal device. The following description will be given taking the execution subject as a terminal device as an example. The RS transmitting method may include: the terminal device may obtain first downlink control information DCI, where the first DCI includes an RS request field, first information and second information, the RS request field is used to indicate a triggered RS resource set, and the first information is information related to RS transmission corresponding to the triggered RS resource set. After that, the terminal device may determine that the first DCI further includes third information or fourth information according to cyclic redundancy check, CRC, information and/or second information of the first DCI, where the fourth information is related to data scheduling. Further, the terminal device may transmit the RS according to the first information and/or the third information.

Based on the scheme, the terminal device may determine third information or fourth information included in the first DCI according to the CRC information and/or the second information of the first DCI, where the third information may be used to transmit the RS, and the fourth information is related to data scheduling. As can be seen, the terminal device may determine other information included in the first DCI in addition to the field indicating the triggering of the RS resource set. Furthermore, the terminal equipment can execute corresponding actions according to other information, and the correct RS transmission is ensured. In addition, since other information (such as the third information) can also be used to transmit the RS, the RS transmission is more accurate.

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

With reference to the first aspect, in a possible implementation manner, the determining, by the terminal device, that the first DCI further includes the third information or the fourth information according to the CRC information and/or the second information of the first DCI may include: 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 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, when the CRC of the first DCI is scrambled by the second RNTI and the second information belongs to the third set, the terminal device may determine that the first DCI further includes the third information.

Based on this scheme, for the first DCI with different scrambling schemes for the CRC information, the terminal device may determine other information (third information or fourth information) included in the first DCI according to the scrambling scheme of the CRC and the content of the second information, and this implementation utilizes the small part of information of the first DCI (the scrambling scheme of the CRC of the first DCI and the second information) to determine the other information included in the first DCI, which is easy to implement.

With reference to the first aspect, in a possible implementation manner, the determining, by the terminal device, that the first DCI further includes the third information or the fourth information according to the CRC information and/or the second information of the first DCI may include: the terminal device may determine 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 the scheme, the terminal equipment can determine other information included in the first DCI only according to the second information included in the first DCI without considering the scrambling mode of the CRC of the first DCI, the scheme is simpler and more convenient, and the bit resources of the DCI can be saved.

With reference to the first aspect, in a possible implementation manner, the determining, by the terminal device, that the first DCI further includes the third information or the fourth information according to the CRC information and/or the second information of the first DCI may include: 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 second RNTI.

Based on the scheme, 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, the first DCI with the CRC scrambled by the second RNTI may only be used for triggering of RS resource sets with data scheduling and may not be used for triggering of RS resource sets without data scheduling.

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

In other words, in the scheme of this embodiment of the present application, the first DCI includes the third information for transmitting the RS equivalent to the trigger of the first DCI for the aperiodic RS resource set without data and without CSI (which may be collectively referred to as no-data scheduling), and the first DCI includes the fourth information related to data scheduling equivalent to the trigger of the first DCI for the aperiodic RS resource set with data and/or CSI.

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

With reference to the first aspect, in a possible implementation manner, 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 over multiple symbols, a set of carrier information for RS transmission, frequency domain resource information, partial bandwidth BWP information, power control information, spatial domain parameter information, RS trigger state information.

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

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

Based on the scheme, the terminal device may determine that the first DCI further includes the third information or the fourth information according to the first field in the first DCI, where the first field may be a newly added field or an existing field in the first DCI, and the first bit state set may also be defined by itself, so that the flexibility of implementation of the scheme is high. And when the CRC adopts different scrambling modes, the second information is the same, so that the processing complexity of the terminal equipment is reduced.

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

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

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

Based on the scheme, when the CRC of the first DCI employs the first scrambling scheme, the terminal device may determine that the first DCI further includes the third information or the fourth information only according to the value of the first field, and when the CRC of the first DCI employs the second scrambling scheme, the terminal device needs to determine that the first DCI further includes the third information or the fourth information according to the UL-SCH field, the CSI request field, and the first field, which is an optional implementation manner.

With reference to the 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 and the CSI request field is 0 bits in length, and the bit state of the first field belongs to the first set of bit states. Alternatively, the bit state of the UL-SCH field is 0, and the bit states of the CSI request field are all 0, and the bit state of the first field belongs to the first set of bit states. The third set may include: the bit states of the first field belong to a first set of bit states.

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

With reference to the 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 and the CSI request field is 0 bits in length, and the bit state of the first field belongs to the first set of bit states. Alternatively, the bit state of the UL-SCH field is 0, and the bit states of the CSI request field are all 0, and the bit state of the first field belongs to the first set of bit states. The third set may include: the bit state of the UL-SCH field is 0 and the CSI request field is 0 bits in length, and the bit state of the first field belongs to the first set of bit states. Alternatively, the bit state of the UL-SCH field is 0, and the bit states of the CSI request field are all 0, and the bit state of the first field belongs to the first set of bit states.

Based on the scheme, no matter which way the CRC of the first DCI is scrambled, the terminal device determines that the first DCI further includes the third information or the fourth information according to the UL-SCH field, the CSI request field, and the first field, which is an optional implementation manner.

With reference to the first aspect, in a possible implementation manner, a 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 state of the UL-SCH field is 0, the length of the CSI request field is 0 bit, and the bit state of the 1st downlink assignment index field is all 0; alternatively, 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 the scheme, when the CRC of the first DCI is scrambled by the first RNTI, the first DCI may 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 manner. The additional field indication can improve the accuracy, and the existing field indication second information in the first DCI is utilized, so that the signaling resource can be saved.

With reference to the first aspect, in a possible implementation manner, the fourth information may include one or more of the following information: the 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 (MCS) information, new data indication new data indicator information, redundancy Version (RV) information, hybrid automatic repeat request (HARQ) processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation indication 2st downlink allocation 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 relation (PTRS-DMRS-association information), beta bias indication information, demodulation reference signal (DMRS) sequence initialization information, downlink feedback information identification (DFI) flag information, TPC transmission power control command for scheduled Physical Uplink Shared Channel (PUSCH) information, open loop power control parameter set indication information and priority indication information.

With reference to the first aspect, in a possible implementation manner, the third information may not include one or more of the following information: the 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 (MCS) information, new data indication new data indicator information, redundancy Version (RV) information, hybrid automatic repeat request (HARQ) processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation index 2st downlink allocation 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 relation (PTRS-DMRS-demodulation reference signal relation) information, beta a bias indication information, demodulation reference signal (DMRS) initialization information, downlink feedback information identification (DFI) flag information, transmission power control command for scheduled Physical Uplink Shared Channel (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 over multiple symbols, a set of carrier information for RS transmission, frequency domain resource information, partial bandwidth BWP information, power control information, spatial domain parameter information, RS trigger state information.

With reference to the first aspect, 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 a first allocation type, and the bit states of the FDRA field are all 0's. Or, the resource allocation type is the second allocation type, and the bit states of the FDRA field are all 1. Or the resource allocation type is a second allocation type, the bit state of the FDRA field belongs to a second bit state set, and the bit state of the FH field is 1, the second bit state set being used to indicate that the resource allocation is a full bandwidth measurement.

Based on this scheme, 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. It should be understood that the bit states of the FDRA field are all 0 s and all 1s, which are originally bit states without indication information, and this scheme makes full use of idle bit states, which may save signaling resources.

With reference to the first aspect, in a possible implementation manner, the fourth information may include one or more of the following information: the uplink shared channel (UL-SCH) indication information, channel State Information (CSI) request information, time Domain Resource Allocation (TDRA) information, modulation and Coding Scheme (MCS) information, new data indication (new data indicator) information, redundancy Version (RV) information, hybrid automatic repeat request (HARQ) processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation indication 2st downlink allocation 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 relation (PTRS-PUSCH) offset information, beta DMRS offset indication information, demodulation reference signal (DMRS) sequence initialization information, downlink feedback information identification (DFI) flag information, transmission power control command (TPC) for scheduled information, open loop power control parameter set indication information and priority indication information. It should be understood that since the FDRA field and/or the FH field is 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, in a possible implementation manner, the third information may not include one or more of the following information: the uplink shared channel (UL-SCH) indication information, channel State Information (CSI) request information, time Domain Resource Allocation (TDRA) information, modulation and Coding Scheme (MCS) information, new data indication new data indicator information, redundancy Version (RV) information, hybrid automatic repeat request (HARQ) processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation index 2st downlink allocation 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 relation (PTRS-DMRS) association information, beta offset indication information, demodulation reference signal (DMRS) sequence initialization information, downlink feedback information identification (DFI) flag information, transmission power control command (TPC) for scheduled PUSCH (physical uplink shared channel) information, open loop power control parameter set indication information and 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 over multiple symbols, a set of carrier information for RS transmission, frequency-domain resource information, partial bandwidth BWP information, power control information, spatial-domain parameter information, RS trigger state information.

With reference to the first aspect, in a possible implementation manner, the sending the RS according to the first information and/or the third information may include: and if the first DCI also comprises third information, transmitting the RS according to the first information and the third information. Or, if the first DCI further includes fourth information, the RS is transmitted according to the first information.

With reference to the first aspect, in a possible implementation manner, the format of the first DCI is DCI format 0_1 or DCI format 0_2, and the first DCI does not satisfy any of the following items: the bit state of the RS request field is all 0 s, and the CSI request field is 0 bits in length, and the bit state of the UL-SCH indication field is all 0 s. The bit state of the RS request field is all 0, and the UL-SCH indication field is 0 bits in length, and the bit state of the CSI request field is all 0. The bit states of the RS request field are all 0 s, and the bit states of the UL-SCH indication field are all 0 s, and the bit states of the CSI request field are all 0 s.

With reference to the first aspect, in a possible implementation manner, the format of the first DCI is DCI format 0_2, and the first DCI does not satisfy any of the following items: the RS request field is 0 bits in length, the CSI request field is 0 bits in length, and the bit status of the UL-SCH indication field is 0. The RS request field is 0 bits in length, and the UL-SCH indication field is 0 bits in length, and the bit states of the CSI request field are all 0's. The RS request field is 0 bits in length, and the bit state of the UL-SCH indication field is 0, and the bit state of the CSI request field is all 0.

With reference to the first aspect, in a possible implementation manner, when the format of the first DCI is DCI format 0_1 and the scrambling manner of the CRC of the first DCI does not include SP-CSI-RNTI scrambling, the first DCI does not satisfy the following condition: 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.

In a second aspect, an RS transmission method is provided, and a communication device performing the RS transmission method may be an access network device; but also a module, e.g. a chip or a chip system, applied in an access network device. The following description takes the execution subject as an access network device as an example. The RS transmission method may include: first, the access network device may transmit first downlink control information DCI. The first DCI may include an RS request field, which may be used to indicate a triggered RS resource set, first information, which may be information related to RS transmission corresponding to the triggered RS resource set, and second 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 can be used for transmitting the RS, and the fourth information is related to data scheduling. Thereafter, the access network device may receive the RS according to the first information and/or the third information.

The description of the information such as the first information, the second information, the third information, and the fourth information may refer to the description in the possible implementation of the first aspect, and is not repeated here. In addition, for technical effects of the second aspect, reference may be made to the above first aspect, which is not described herein again.

In a third aspect, a communication apparatus is provided, where the communication apparatus may be a terminal device or a chip system in the terminal device, and may also be a functional module in the terminal device for implementing the method in any possible implementation manner of the first aspect. The communication apparatus may implement the function executed by the terminal device in any possible implementation manner of the first aspect, and the function may be implemented by executing corresponding software through hardware. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication apparatus may include: a receiving and sending module and a processing module.

With reference to the third aspect, in a possible implementation manner, the transceiver module is configured to acquire the first downlink control information DCI. The first DCI includes an RS request field 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 a triggered RS resource set. And the processing module is used for determining that the first DCI further comprises third information or fourth information according to the CRC information and/or the second information of the first DCI. And the transceiver module is further used for transmitting the RS according to the first information and/or the third information.

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

With reference to the third aspect, 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 further includes third information or fourth information, and specifically includes: and the processing module is used for determining that the first DCI also comprises third information when the CRC of the first DCI is scrambled by the first RNTI and the second information belongs to the first set. Or, the processing module is configured to 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. Or, the processing module is configured to 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.

With reference to the third aspect, 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 further includes third information or fourth information, and specifically includes: and the processing module is used for determining that the first DCI further comprises third information when the second information belongs to the first set. Or, the processing module is configured to determine that the first DCI further includes the fourth information when the second information belongs to the second set.

With reference to the third aspect, 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 further includes third information or fourth information, and specifically includes: and the processing module is used for determining that the first DCI further comprises fourth information when the CRC of the first DCI is scrambled by the second RNTI.

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

With reference to the third aspect, in a possible implementation manner, the first RNTI is a cell radio network temporary identity C-RNTI. The second RNTI comprises one or more of the following: the method comprises the steps of semi-static channel state information radio network temporary identification SP-CSI-RNTI, radio network temporary identification CS-RNTI for configuration scheduling and modulation coding mode cell radio network temporary identification MCS-C-RNTI.

With reference to the foregoing third aspect, in a possible implementation manner, the third information may 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 over multiple symbols, a set of carrier information for RS transmission, frequency domain resource information, partial bandwidth BWP information, power control information, spatial domain parameter information, RS trigger state information.

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

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

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

With reference to the 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 and the CSI request field is 0 bits in length, and the bit state of the first field belongs to the first set of bit states. Alternatively, the bit state of the UL-SCH field is 0, and the bit states of the CSI request field are all 0, and the bit state of the first field belongs to the first set of bit states. The third set may include: the bit states of the first field belong to a first set of bit states.

With reference to the 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 and the CSI request field is 0 bits in length, and the bit state of the first field belongs to the first set of bit states. Alternatively, the bit state of the UL-SCH field is 0, and the bit states of the CSI request field are all 0, and the bit state of the first field belongs to the first set of bit states. The third set may include: the bit state of the UL-SCH field is 0 and the CSI request field is 0 bits in length, and the bit state of the first field belongs to the first set of bit states. Alternatively, the bit state of the UL-SCH field is 0, and the bit states of the CSI request field are all 0, and the bit state of the first field belongs to the first set of bit states.

With reference to the first aspect, in a possible implementation manner, a 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 state of the UL-SCH field is 0, the length of the CSI request field is 0 bit, and the bit state of the 1st downlink assignment index field is all 0; alternatively, 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 1st downlink assignment index field is all 0.

With reference to the foregoing third aspect, in a possible implementation manner, the fourth information may include one or more of the following information: the 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 (MCS) information, new data indication new data indicator information, redundancy Version (RV) information, hybrid automatic repeat request (HARQ) processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation indication 2st downlink allocation 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 relation (PTRS-DMRS-association information), beta bias indication information, demodulation reference signal (DMRS) sequence initialization information, downlink feedback information identification (DFI) flag information, TPC transmission power control command for scheduled Physical Uplink Shared Channel (PUSCH) information, open loop power control parameter set indication information and priority indication information.

With reference to the third aspect, in a possible implementation manner, the third information may not include one or more of the following information: the 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 (MCS) information, new data indication new data indicator information, redundancy Version (RV) information, hybrid automatic repeat request (HARQ) processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation index 2st downlink allocation 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 relation (PTRS-DMRS-demodulation reference signal relation) information, beta a bias indication information, demodulation reference signal (DMRS) initialization information, downlink feedback information identification (DFI) flag information, transmission power control command for scheduled Physical Uplink Shared Channel (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 over multiple symbols, a set of carrier information for RS transmission, frequency domain resource information, partial bandwidth BWP information, power control information, spatial domain parameter information, RS trigger state information.

With reference to the third aspect, 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 a first allocation type, and the bit states of the FDRA field are all 0's. Or, the resource allocation type is the second allocation type, and the bit state of the FDRA field is all 1. Or the resource allocation type is a second allocation type, the bit state of the FDRA field belongs to a second bit state set, and the bit state of the FH field is 1, the second bit state set being used to indicate that the resource allocation is a full bandwidth measurement.

With reference to the foregoing third aspect, in a possible implementation manner, the fourth information may include one or more of the following information: the uplink shared channel (UL-SCH) indication information, channel State Information (CSI) request information, time Domain Resource Allocation (TDRA) information, modulation and Coding Scheme (MCS) information, new data indication (new data indicator) information, redundancy Version (RV) information, hybrid automatic repeat request (HARQ) processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation indication 2st downlink allocation 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 relation (PTRS-PUSCH) offset information, beta DMRS offset indication information, demodulation reference signal (DMRS) sequence initialization information, downlink feedback information identification (DFI) flag information, transmission power control command (TPC) for scheduled information, open loop power control parameter set indication information and priority indication information. It is to be understood that since the FDRA field and/or the FH field is 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, in a possible implementation manner, the third information may not include one or more of the following information: the uplink shared channel (UL-SCH) indication information, channel State Information (CSI) request information, time Domain Resource Allocation (TDRA) information, modulation and Coding Scheme (MCS) information, new data indication new data indicator information, redundancy Version (RV) information, hybrid automatic repeat request (HARQ) processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation index 2st downlink allocation 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 relation (PTRS-DMRS) association information, beta offset indication information, demodulation reference signal (DMRS) sequence initialization information, downlink feedback information identification (DFI) flag information, transmission power control command (TPC) for scheduled PUSCH (physical uplink shared channel) information, open loop power control parameter set indication information and 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 over multiple symbols, a set of carrier information for RS transmission, frequency domain resource information, partial bandwidth BWP information, power control information, spatial domain parameter information, RS trigger state information.

With reference to the foregoing third aspect, in a possible implementation manner, the transceiver module is configured to send the RS according to the first information and/or the third information, and may include: and the transceiver module is used for transmitting the RS according to the first information and the third information if the first DCI comprises the third information. Or, the first DCI further includes fourth information, and the transceiver module is configured to transmit the RS according to the first information.

With reference to the third aspect, in a possible implementation manner, the format of the first DCI is DCI format 0 \ u1 or DCI format 0 \ u 2, and the first DCI does not satisfy any of the following: the bit state of the RS request field is all 0 s, and the CSI request field is 0 bits in length, and the bit state of the UL-SCH indication field is all 0 s. The bit state of the RS request field is all 0, and the UL-SCH indication field is 0 bits in length, 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.

With reference to the third aspect, in a possible implementation manner, the format of the first DCI is DCI format 0_2, and the first DCI does not satisfy any of the following items: the RS request field is 0 bits in length, the CSI request field is 0 bits in length, and the bit status of the UL-SCH indication field is 0. The RS request field is 0 bits in length, and the UL-SCH indication field is 0 bits in length, and the bit states of the CSI request field are all 0's. The RS request field is 0 bits in length, and the bit state of the UL-SCH indication field is 0, and the bit state of the CSI request field is all 0.

With reference to the third aspect, in a possible implementation manner, when the format of the first DCI is DCI format 0_1 and the scrambling manner of the CRC of the first DCI does not include SP-CSI-RNTI scrambling, the first DCI does not satisfy the following condition: 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.

For technical effects of the third aspect, reference may be made to the first aspect, which is not described herein again.

In a fourth aspect, a communication apparatus is provided, where the communication apparatus may be an access network device or a chip system in the access network device, and may also be a functional module in the access network device for implementing the method in any possible implementation manner of the first aspect. The communication apparatus may implement the functions performed by the access network device in any possible implementation manner of the first aspect, and the functions may be implemented by hardware and corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication apparatus may include: a receiving and sending module and a processing module.

With reference to the fourth aspect, in a possible implementation manner, the transceiver module may be configured to transmit 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, the first information may be information related to RS transmission corresponding to the triggered RS resource set, and the second information and/or 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 can be used for transmitting the RS, and the fourth information is related to data scheduling. The transceiver module may be further configured to receive the RS according to the first information and/or the third information.

The description of the information such as the first information, the second information, the third information, and the fourth information may refer to the description in the possible implementation of the third aspect, and is not repeated here. In addition, for technical effects of the fourth aspect, reference may be made to the second aspect described above, which is not described herein again.

In a fifth aspect, a communication device is provided for implementing the above method. The communication device comprises corresponding modules, units or means (means) for implementing the above method, and the modules, units or means can be implemented by hardware, software or by hardware executing corresponding software. 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 configured to perform operations of receiving and sending a message in the method according to the first aspect or the second aspect; the processing module is configured to invoke an instruction to perform message processing or control operations in the method according to the first aspect or the second aspect.

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

In one possible implementation, the communication device further includes a memory; the memory is for storing computer instructions.

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

In one possible implementation, the communication device may be a chip or a system of chips. When the communication device is a chip system, the communication device may be formed by 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 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. The processor may also be embodied as a processing circuit or a logic circuit.

In a seventh aspect, a computer-readable storage medium is provided, having stored therein instructions, which when run on a computer, cause the computer to perform the method of any of the above aspects.

In an eighth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the above aspects.

For technical effects brought by any possible implementation manner of the fifth aspect to the eighth aspect, reference may be made to technical effects brought by different implementation manners in the first aspect, the second aspect, the third aspect, or the fourth aspect, and details are not described herein again.

Drawings

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

fig. 2 is a schematic diagram of a wireless communication scenario provided in 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 according to an embodiment of the present application;

fig. 6 is a schematic diagram of an RS transmission method according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

Before introducing the embodiments of the present application, some terms and related technologies related to the embodiments of the present application will be explained. It should be noted that the following explanation is for making the embodiments of the present application easier to understand, and should not be construed as limiting the scope of protection claimed by the embodiments of the present application.

A Reference Signal (RS) is a signal transmitted by a transmitting end to a receiving end for channel estimation or channel sounding. The RS may include an uplink reference signal and a downlink reference signal, the uplink reference signal may include a demodulation reference signal (DMRS), an SRS (sounding reference signal), and the like, and the downlink reference signal may include a Cell Reference Signal (CRS), and the like. The sending end may be configured with a RS resource set, where the RS resource set may include RS resources, and the sending end may send an RS on the RS resources included in the triggered RS resource set.

The following specifically describes the uplink reference signal SRS in 5G NR as an example:

the SRS is sent to the access device by the terminal device, and the access device may estimate the channel quality according to the SRS, that is, the SRS may be used for uplink channel measurement. The access network device may configure one or more SRS resource sets for the terminal device through an SRS-resource set (SRS-resource) as a higher layer parameter, and the terminal device may send an SRS on an SRS resource included in the triggered SRS resource set.

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

The slot format of NR includes downlink symbols (symbols), uplink symbols and flexible symbols, and SRS can be transmitted only on the uplink symbols or the flexible symbols. The access network device may configure, through higher layer parameter resource mapping (resource mapping), the number of consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols for each SRS resource, and a start symbol position and a repetition factor occupied by the SRS resource in the trigger slot.

From the aspect of time domain behaviors, the access network device may configure an SRS resource set as three different time domain behaviors, namely, a P-SRS, an SP-SRS, or an AP-SRS, by using a high-level parameter resource type (resource). For P-SRS, each SRS resource may be configured with a slot-level period and a slot-level offset, and the terminal device may repeat SRS transmission according to the period. For the SP-SRS, each SRS resource may also be configured with a slot-level period and a slot-level offset, and send an activation or deactivation command through a media access control-control element (MAC CE), and when the SP-SRS is activated, the UE may repeatedly send the SRS according to the period until receiving the deactivation command. For the AP-SRS, the access network device may define a slot level offset (slotoffset) for each SRS resource set through a high-level parameter slot offset (slotoffset), and the access network device may trigger the AP-SRS through Downlink Control Information (DCI).

The SRS resource set may be triggered by Downlink Control Information (DCI) and other information (such as configuration of higher layer parameters). For example, taking the AP-SRS resource set as an example, according to the release 15/16 (rel 15/16 ) communication standard proposed by the international communication standards organization, the DCI formats (formats) that can be used to trigger the AP-SRS resource set may include the following:

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

group common (group common) DCI, e.g., DCI format 2_3;

DCI for downlink scheduling, for example, DCI format 1_1 and DCI format 1_2.

Specifically, the DCI may include an SRS request field for indicating triggering of an SRS resource set, and specifically, the SRS request field has at least one value indicating triggering of a corresponding SRS resource set. The length of the SRS request field in DCI of different formats may be the same or different. For example, when the terminal device is not configured with Supplemental Uplink (SUL), the length of the srs request field is fixed to 2 bits (bit) for DCI format 0_1 and DCI format 1_1; the length of the SRS request field in DCI format 2 _3is 0 bit or 2 bits; in DCI format 0 _2and DCI format 1_2, the SRS request field may have a length of 0 bit, 1 bit, 2 bits, or 3 bits, etc. In addition, the SRS request fields in the DCIs of different DCI formats have the same value, and the meanings indicated by the SRS request fields may be the same or different.

Exemplarily, taking the SRS request field as 2 bits as an example, the following table 1 shows a trigger condition of an AP-SRS resource set under different values of the SRS request field. As shown in table 1, whether to trigger an AP-SRS resource set may be determined by combining values of the SRS request field, DCI format, and configuration of higher layer parameters.

TABLE 1

Referring to table 1, for the case that DCI format 0_1, or format 0_2, or format 1_1, or format 1_2, or format 2 _3and a higher layer parameter sounding reference signal-power control command (power control command) -physical uplink control channel-group (SRS-TPC-PDCCH-group) is set to "typeB", it may be indicated that an AP-SRS-resource set in which one of a higher layer parameter aperiodic sounding reference signal resource trigger (aperiodicSRS-resource) is configured as a corresponding value or an aperiodic sounding reference signal resource trigger table (aperiodicSRS-resource) is configured as a corresponding value is triggered according to a value of an SRS request field in DCI. Illustratively, when the SRS request field takes a value of 01, an AP-SRS resource set with a higher-layer parameter, aperiod SRS-resourcetrigger configured to 1, or one of aperiod SRS-resourcetriggerlist configured to 1, is triggered; when the SRS request field takes a value of 10, an AP-SRS resource set of which the high-level parameter aperiodicSRS-resourcetrigger is configured to be 2 or one of the aperiodicSRS-resourcetrigerlist is configured to be 2 is triggered; when the SRS request field takes a value of 11, an AP-SRS resource set with a higher-layer parameter, aperiodic SRS-resourcetrigger configured to 3, or one of aperiodic SRS-resourcetriggerlist configured to 3, is triggered.

For another example, for the case of DCI format 2_3 and the higher layer parameter SRS-TPC-PDCCH-Group is set to "typeA", it may indicate that an AP-SRS resource set in which the use of a corresponding Group in the higher configured serving cell is configured as 'anti switching' is triggered according to the value of the SRS request field in the DCI. Exemplarily, when the value of the SRS request field is 01, the AP-SRS configured as 'antipanswitching' by group 1 usage in the higher configured serving cell is triggered; when the value of the SRS request field is 10, triggering the AP-SRS configured by the 2 nd group of use in the high-level configured serving cell as 'antenna switching'; when the value of the SRS request field is 11, the AP-SRS configured with the group 3 usage configuration of 'antipanswitching' in the higher-level configured serving cell is triggered.

In addition, with continued reference to table 1, when the SRS request field takes the value 00, no AP-SRS resource set is triggered.

The DCI for triggering the SRS resource set may also carry other fields, and the other fields may be used to schedule other information. Taking DCI for uplink scheduling as an example (such as DCI format 0 _1and format 0 _2), some other fields included in the DCI are described below:

an uplink shared channel (UL-SCH) indication (indicator) field: for indicating whether uplink data is transmitted on a Physical Uplink Shared Channel (PUSCH). For DCI format 0_1, the field is either 0 bits in length (i.e., the field is not present) or 1 bit in length. When a Time Domain Resource Allocation (TDRA) field in the DCI indicates that the number of scheduled PUSCHs is greater than 1, the bit length of the field is 0 bit, otherwise (that is, the TDRA field indicates that the number of scheduled PUSCHs is equal to 1 or 0), the bit length of the field is 1 bit. For DCI format 0_2, the field length of the ul-SCH indicator is fixed to 1 bit. When the bit length of the field is 1 bit, if the bit state of the field is equal to 1, indicating that the UL-SCH is transmitted on the PUSCH; the bit status of this field is equal to 0, indicating that no UL-SCH is transmitted on PUSCH.

CSI request field: for triggering the reporting of CSI. The bit number of the field is determined according to the configuration of a higher layer parameter reporting trigger size (reporttriggersize), the bit number of the field may be 0 bit, 1 bit, 2 bits, 3 bits, 4 bits, 5 bits, or 6 bits, and each value (which may be referred to as a bit state) of the field corresponds to a trigger state for CSI reporting.

The DCI scrambled by a cell-radio network temporary identifier (C-RNTI) is used for triggering aperiodic CSI reporting. The network may configure the trigger state of multiple aperiodic CSI reports through a parameter aperiodic trigger state list (aperiodistriggerstatelist) included in a higher-layer parameter CSI measurement configuration (CSI-measconfig). One trigger state is associated with one or more CSI reporting configurations (CSI-reportconfigs), and after receiving one trigger state, the terminal device performs downlink channel measurement according to CSI-RS resources associated with the CSI-reportconfigs. Since all zeros in the CSI request field indicate that aperiodic CSI reporting is not triggered, the CSI request field may indicate 63 (i.e., 2) at most ⁶ -1) trigger states for aperiodic CSI reporting. When the configured number of trigger states 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, the configured number of trigger states reported by the aperiodic CSI is100), 63 trigger states need to be screened out by the MAC CE.

The DCI scrambled by the semi-persistent channel state information radio network temporary identifier (semi-persistent channel state information) SP-CSI-RNTI is used for triggering the semi-persistent CSI report on the PUSCH. The network can configure a group of trigger states for the terminal equipment through a high-layer parameter CSI-semipersistent PUSCH-triggerstar, and then one of the trigger states is activated by DCI scrambled by the SP-CSI-RNTI. The difference between the SP-CSI-RNTI scrambled DCI and the C-RNTI scrambled DCI is that the all zeros of the CSI request field still correspond to the trigger state of a semi-persistent CSI report, rather than indicating that the CSI report is not triggered.

Frequency domain resource allocation Field (FDRA): for indicating the frequency domain resource allocation for PUSCH transmission. The length of the FDRA field may be determined according to a frequency domain resource allocation manner (including type0 and type 1) configured on a partial Bandwidth (BWP). The length of the FDRA field may be as shown in table 2.

TABLE 2

Referring to table 2, when the frequency domain resource allocation pattern is configured to type0 by the higher layer parameter PUSCH-config, the FDRA field length is N _RBG . Wherein N is _RBG The total number of Resource Block Groups (RBGs) in the uplink BWP may be determined according to the size of the BWP and Radio Resource Control (RRC) configuration. In this frequency domain resource allocation manner, the RBG indication method is: in the form of a bitmap (bitmap), starting from the lowest frequency, RBG (0) to RBG (N) _RBG -1) corresponding to the Most Significant Bit (MSB) to the Least Significant Bit (LSB), when the bit value is 1, indicating that the RBG is allocated to the LSBAnd (4) terminal equipment.

With continued reference to table 2, when the frequency domain resource allocation pattern is configured to type1 by the higher layer parameter PUSCH-config, the length of the FDRA field is

Wherein, when the DCI is transmitted in a Common Search Space (CSS),

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

indicating the number of RBs included in the active BWP. The bit number of the FDRA field may be determined by the number of RBs included in the initial BWP according to an alignment rule of the DCI format. In the frequency domain resource allocation scheme, FDRA indicates frequency domain resource allocation by indicating a Resource Indication Value (RIV), which indicates a starting RB number and a length of an RB to be continuously allocated.

It should be noted that, according to the existing protocol (e.g. Rel 15/16), for DCI format 0 _1or 0 _2scrambled by non-SP-CSI-RNTI, when the CSI request field is all zero (non-periodic CSI reporting is not triggered) and the UL-SCH field takes a value of 0 (no uplink data transmission), the terminal device schedules an empty PUSCH, so the terminal device does not want such an indication. In other words, the existing protocols do not allow for the occurrence of: the DCI is only used for triggering the AP-SRS, does not perform uplink data transmission and does not trigger CSI reporting.

However, in future protocol versions (e.g., rel-17), DCI formats 0 _1and 0 _2are supported to trigger AP-SRS without uplink data transmission and CSI reporting. When DCI is used to trigger SRS only without uplink data transmission and CSI reporting, fields related to data scheduling (including uplink data transmission and CSI reporting) in DCI specified by existing protocols become useless, and thus these fields may be reinterpreted in new protocols. Therefore, when receiving DCI, the terminal device cannot distinguish whether the DCI triggers only the AP-SRS or triggers the AP-SRS and also performs uplink data transmission and/or CSI reporting, and further cannot determine the specific meaning indicated by some fields in the DCI.

In order to solve the problems, embodiments of the present application provide an RS transmission method, which may 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 may further transmit an RS according to the first information and/or the third information in the first DCI. The method may enable the terminal device to identify that the DCI includes other information in addition to the field used to trigger the RS resource set. And, different explanations 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. Where in the description of the present application, "/" indicates a relationship where the objects associated before and after are an "or", unless otherwise stated, for example, a/B may indicate a or B; in the present application, "and/or" is only an association relationship describing an association object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. Also, in the description of the present application, "a plurality" means two or more than two unless otherwise specified. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple. In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," and the like do not denote any order or importance, but rather the terms "first," "second," and the like do not denote any order or importance. Also, in the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or illustrations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion for ease of understanding.

In addition, the network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not constitute a limitation to the technical solution provided in the embodiment of the present application, and it can be known by a person of ordinary skill in the art that, along with the evolution of the network architecture and the occurrence of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

First, a system architecture or a scenario applied in the embodiment of the present application is described. The scheme of the embodiment of the application is suitable for protocol frameworks such as 4G Long Term Evolution (LTE) or 5G NR and the like, and can be applied to various wireless communication scenes. The wireless communication system comprises communication devices, and the communication devices can perform wireless communication by using air interface resources. 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 spatial resource. The wireless communication scenario applied in the embodiment of the present application may include various scenarios in which the access network device and the terminal device perform communication.

Illustratively, the access network device may be a base station, and the terminal device may be a User Equipment (UE). The wireless communication scenario applied in the embodiment of the present application may be a point-to-point transmission scenario between a base station and a UE shown in fig. 1, a multi-hop relay (relay) transmission scenario between a base station and a UE shown in fig. 2, a Dual Connectivity (DC) scenario between two base stations and a UE shown in fig. 3, or a multi-hop multi-connection scenario between a base station and a UE shown in fig. 4. It should be understood that fig. 1-4 are only exemplary and do not limit the network architecture to which the present application may be applied. In addition, the scheme of the embodiment of the present application does not limit transmission of uplink, downlink, access link, backhaul link, sidelink, and the like.

The terminal device related to the embodiment of the application can be a device with a wireless transceiving function, and can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal device may be a UE, an access terminal, a terminal unit, a subscriber unit (subscriber unit), a terminal Station, a Mobile Station (MS), a Mobile Station, a remote terminal, a Mobile device, a wireless communication device, a terminal agent, or a terminal apparatus in a 5G network or a Public Land Mobile Network (PLMN) of future evolution. The access terminal may be a cellular phone (cellular phone), a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capability, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device or wearable device, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security, a wireless terminal in smart city (city), a wireless terminal in home, etc. The terminals may be mobile or fixed.

The access network equipment related to the application is a device which is arranged in a wireless access network and provides wireless communication functions for terminal equipment. The access network device in the embodiment of the present application may include various forms of base stations, for example: macro base stations, micro base stations (also referred to as small stations), relay stations, access points, etc. In systems employing different radio access technologies, the names of network devices may differ, for example: a Base Transceiver Station (BTS) in a global system for mobile communication (GSM) or Code Division Multiple Access (CDMA) network, an NB (NodeB) in a Wideband Code Division Multiple Access (WCDMA), an eNB or eNodeB (evolved NodeB) in a Long Term Evolution (Long Term Evolution, LTE), a 5G network, or a Base Station in a future-Evolution Public Land Mobile Network (PLMN). The access network device may also be a broadband network service gateway (BNG), an aggregation switch, or a non-3 GPP 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 node (TRP), or a device including the TRP, and the like, which is not specifically limited in this embodiment of the present invention.

It should be noted that the terminal device and the access network device (such as the base station and the UE shown in fig. 1 to fig. 5) in the embodiment of the present application 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 according to an embodiment of the present application, such as: when the communication device 50 has the functions of the access network equipment according to the embodiment of the present application, the communication device 50 may be an access network equipment or a chip system in the access network equipment. When the communication apparatus 50 has the functions of the terminal device described in the embodiment of the present application, the communication apparatus 50 may be the terminal device or a chip system in the terminal device.

As shown in fig. 5, the communication device 50 may include a processor 501, a communication link 502, and a communication interface 503. Optionally, the communication device 50 may also include a memory 504. The processor 501, the memory 504 and the communication interface 503 may be connected by a communication line 502.

The processor 501 may be a Central Processing Unit (CPU), a general purpose processor Network (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The processor 501 may also be other devices with processing functions, such as a circuit, a device, a software module, or the like.

A communication line 502 for transmitting information between the various components included in the communication apparatus 50.

A communication interface 503 for communicating with other devices or other communication networks. The other communication network may be an ethernet, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), or the like. The communication interface 503 may be a radio frequency module or any device capable of enabling communication. In the embodiment of the present application, the communication interface 503 is only used as an example of a radio frequency module, where the radio frequency module may include an antenna, a radio frequency circuit, and the like, and the radio frequency circuit may include a radio frequency integrated chip, a power amplifier, and the like.

A memory 504 for storing instructions. Wherein the instructions may be a computer program.

The memory 504 may be a read-only memory (ROM) or other types of static storage devices that can store static information and/or instructions, a Random Access Memory (RAM) or other types of dynamic storage devices that can store information and/or instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, magnetic disc storage media, or other magnetic storage devices, and the optical disc storage includes a compact disc, a laser disc, an optical disc, a digital versatile disc, a blu-ray disc, and the like.

It is to be noted that the memory 504 may exist independently from the processor 501, or may be integrated with the processor 501. The memory 504 may be used for storing instructions or program code or some data or the like. The memory 504 may be located inside the communication device 50 or outside the communication device 50, without limitation. The processor 501 is configured to execute the instructions stored in the memory 504 to implement the RS transmission method provided in the following embodiments of the present application.

Alternatively, in this embodiment of the present application, the processor 501 may also perform functions related to processing in an 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 a communication network, which is not specifically limited in this embodiment of the present application.

Optionally, the computer-executable instructions in this embodiment may also be referred to as application program codes, which is not specifically limited in this embodiment.

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

As an alternative implementation, the communication device 50 includes multiple processors, for example, the processor 506 may be included in addition to the processor 501 in fig. 5.

As an alternative implementation, the communication apparatus 50 further comprises an output device 506 and an input device 507. Illustratively, the input device 507 is a keyboard, mouse, microphone, joystick, or the like, and the output device 506 is a display screen, speaker (spaker), or the like.

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 with a similar structure as that in fig. 5. Further, the constituent structure shown in fig. 5 does not constitute a limitation of the communication apparatus, and the communication apparatus may include more or less components than those shown in fig. 5, or combine some components, or a different arrangement of components, in addition to the components shown in fig. 5.

In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

The SRS transmission method according to the embodiment of the present application is described below with reference to the communication systems shown in fig. 1 to fig. 4. Among them, the device in the following embodiments may have the components shown in fig. 5. In the embodiments, the actions, terms, and the like referred to in the present application may be mutually referred, and are not limited. In the embodiment of the present application, the name of the message exchanged between the devices or the name of the parameter in the message, etc. are only an example, and other names may also be used in the specific implementation, which is not limited.

It should be understood that in the embodiments 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 (UL RS). For example, the UL RS is an SRS, or a demodulation reference signal (DMRS).

It should be understood that in the embodiments of the present application, the RS refers to the same type of RS, such as CRS, DMRS, or SRS. The RS resource sets may have various time domain behaviors, such as periodic RS resource sets, aperiodic RS resource sets, and semi-persistent RS resource sets. In the embodiment of the present application, an aperiodic RS is taken as an example for explanation, and the aperiodic RS may be an aperiodic SRS. Since the DCI that may 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 the embodiment of the present application is described with DCI for uplink scheduling as an example.

The SRS is used for antenna switching (for example, the higher layer parameter usage is configured as antenna switching), or is used for beam management (for example, the higher layer parameter usage is configured as beam management), or is used for codebook-based uplink data transmission (for example, the higher layer parameter usage is configured as codebook), or is used for non-codebook-based uplink data transmission (for example, the higher layer parameter usage is configured as non-codebook).

In addition, the SRS may be a configured SRS, a triggered SRS, or an SRS transmitted 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 (PUSCH), or data carried on a PUSCH, or a Physical Uplink Control Channel (PUCCH), or data carried on a PUCCH, which is not specifically limited in this application.

For convenience of describing the technical solution of the present application, the technical solution of the present application is described by taking the SRS as an example, but it should be noted that the technical solution of the present application is also applicable to other types of signals, and the description manner is not limited.

It should be noted that, in the embodiment of the present application, SRS transmission and SRS resource transmission are equivalent, SRS resource set transmission and SRS resource transmission included in the SRS resource set are also equivalent, and the description is also applicable to similar expressions existing in the embodiment of the present application, and the description thereof will be unified herein and will not be described in detail below.

It should be noted that, in the embodiments of the present application, sending and transmission are also equivalent.

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

It should be noted that, in the embodiment of the present application, the higher layer signaling configuration information may be Radio Resource Control (RRC), MAC CE, or the like.

It should be noted that, in the embodiment of the present application, the bit states of a field are all 0, which means that the bit states of all bits included in the field are all 0. A field having all 1's bit states indicates that all bits included in the field have 1's bit states.

Fig. 6 is a flowchart of an RS sending method according to an embodiment of the present application, and as shown in fig. 6, taking an RS resource set as an SRS resource set as an example, the RS sending method may include the following steps.

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

For example, the first DCI may include an SRS request field, where the SRS request field may be used to indicate the triggered SRS resource set, and specifically, the relevant description of the RS request field is as described above and is not described again. The SRS request field is used to indicate SRS request information, or 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 the high layer signaling configuration information, and after the SRS resource set is triggered, the terminal device may send the SRS on the SRS resource included in the triggered SRS resource set. In this embodiment of the application, the triggered SRS resource set is indicated by the first DCI, and as an implementation manner, an ID of the triggered SRS resource set may be indicated by the first DCI, or a trigger state of the triggered SRS resource set may be indicated by the first DCI. The triggering state of the SRS resource set is determined according to a high-level parameter aperiodic SRS-resource Trigger or aperiodic SRS-resource Triggerlist.

In the embodiment of the 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 application, the terminal device may determine the first information according to one field or multiple fields corresponding to the first information, or the first information includes one field or multiple fields. The first information may be directly based on the first information or indirectly based on the first information. The information (i.e., the first information) related to the SRS transmission corresponding to the triggered SRS resource set may include time domain resources, frequency domain resources, transmission power, and the like, by which the SRS is transmitted. Taking the first DCI as the DCI 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, transmission power control information, carrier indication information, uplink or supplementary uplink indication information and partial bandwidth indication information.

As one implementation, the first information includes one or more of the following fields: a time indication field, a transmit power control field (e.g., SRS TPC field), a carrier indication field, an uplink or supplemental uplink indication field, a fractional bandwidth indication field. The time indication field is used for carrying available time slot information, that is, the SRS is sent in the first available time slot, the transmission power control field is used for carrying transmission power control information, the carrier indication field is used for carrying carrier indication information, the uplink or supplemental uplink indication field is used for carrying uplink or supplemental uplink indication information, and part of the bandwidth indication field is used for carrying part of the 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 a DCI for downlink scheduling, the first information may include downlink or supplemental downlink indication information.

In the 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. The information indicated by different state values (which may be referred to as bit states or values in this application) of the same field may be different, or the different state values of the same field may correspond to different interpretations of one or more other fields. The same field may have one or more candidate state values (or bit states), and the information indicated by the candidate state values (or bit states) of the one or more fields corresponding to the second information may form a set, for example, the first set, the second set, the third set, and so on. The fields, the state values of the fields, comprised by the different sets may be the same or different. The second information may belong to any of the above-mentioned sets.

In this embodiment, the field that may be used to indicate the second information may include at least one of a UL-SCH field, a CSI request field, an FDRA field, an FH field, a first downlink allocation index 1st downlink allocation index field, a second downlink allocation index 2st downlink allocation index field, and an identification field. In this embodiment, the second information may include information indicated by the candidate state value (or bit state) of the one or more fields.

S602, the terminal device determines that the first DCI further includes third information or fourth information according to Cyclic Redundancy Check (CRC) information and/or the second information of the first DCI.

In a wireless communication system, check information may be added to a transmitted message, and in this embodiment, the first DCI may include CRC information. Note that the CRC information in the first DCI may be scrambled by the RNTI. In the embodiment of the application, the CRC scrambling method may include a C-RNTI, an SP-CSI-RNTI, a configuration scheduling radio network temporary identifier (CS-RNTI), or a modulation coding scheme cell radio network temporary identifier (MCS-C-RNTI).

Because the supported DCI in the new protocol version is used to trigger the SRS resource set and there is no data transmission and no CSI report, the first DCI received by the terminal device in the embodiment of the present application may have two situations: in case one, a first DCI received by a terminal device for triggering an SRS resource set indicates data transmission and/or CSI reporting; and in case two, the first DCI instruction for triggering the SRS resource set received by the terminal device does not perform data transmission and does not perform CSI reporting. It is to be understood that other information indicated by the first DCI may be different in different cases. For example, when the first DCI is used to trigger the SRS resource set and indicates data transmission and/or CSI reporting, the first DCI may include information related to the data and/or CSI. However, if the first DCI is used to trigger SRS resource set without data transmission and CSI reporting, the DCI does not need to indicate information related to data and/or CSI, and the field originally used to indicate the data and/or CSI-related information becomes a free field, and the fields may be redefined/designed to indicate other information, in which case the first DCI may 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 SRS.

In this embodiment of the present application, the fourth information is information included when the first DCI indicates that there is data transmission and/or CSI reporting, and the third information is information included when the first DCI indicates that there is no data transmission and there is no CSI reporting. For example, the third information is information related to SRS transmission and/or SRS. As another example, the fourth information is information related to data transmission and/or CSI reporting. Based on the scheme, the utilization rate of the field in the first DCI can be improved. Moreover, when the first DCI indicates that data transmission is not performed and CSI reporting is not performed, the first DCI including information related to SRS transmission may improve accuracy of SRS transmission by the terminal device and scheduling flexibility of SRS.

It should be understood that, in the embodiment of the present application, the first DCI includes the third information, and then the first DCI is used for triggering an aperiodic RS resource set without data and CSI. The first DCI includes the fourth information, and the first DCI is used for triggering the aperiodic RS resource set with data and/or CSI. In other words, in the aspect of this embodiment of the present application, the first DCI is used to indicate one or more of: scheduling data, triggering CSI reporting and triggering an aperiodic SRS. The first DCI comprises third information which is equivalent to the triggering of the first DCI on the aperiodic SRS resource set, no data scheduling exists, and no triggering of CSI reporting exists, and the first DCI comprises fourth information which is equivalent to the triggering of the first DCI on the aperiodic SRS resource set, and data scheduling exists and/or triggering of CSI reporting exists.

It should be noted that, for the status values of the same DCI field, if the CRC of the DCI is scrambled in different manners, the meanings indicated by some fields in the DCI may be different. For example, the CRC adopts DCI scrambled by C-RNTI, and CSI field of the DCI is used for indicating aperiodic CSI reporting, while the CRC adopts DCI scrambled by C-RNTI, and CSI field of the DCI is used for indicating semi-persistent CSI reporting. Based on this, when the CRC of the first DCI uses different scrambling schemes, the indicated second information is different for the same state value of the second information-containing field, so that the terminal device determines whether the first DCI further includes the third information or the fourth information according to the CRC information and/or the second information of the first DCI. Therefore, in this embodiment, the terminal device may determine whether the first DCI includes the third information or the fourth information according to the CRC information and/or the second information of the first DCI. As a possible implementation manner, the CRC uses different scrambling manners, and the partial fields included in the first DCI have different functions. For example, the CRC information is scrambled by using C-RNTI, and the CSI request field is all 0, which means that no CSI is reported; and scrambling the CRC information by adopting SP-CSI-RNTI, wherein the CSI request field is all 0, which indicates that CSI is reported. For another example, the CRC information is scrambled by using C-RNTI, the UL-SCH field is 0, the csi request field is all 0 indicating no data scheduling, and the first DCI includes the third information; the CRC information is scrambled by SP-CSI-RNTI, the UL-SCH field is 0, the CSI request fields are all 0, data scheduling is indicated, and the first DCI comprises fourth information.

It should be understood that determining, by the terminal device, that the first DCI further includes the third information or the fourth information according to the CRC information and/or the second information of the first DCI may include: and the terminal equipment determines that the first DCI further comprises third information or fourth information according to the CRC information and the second information of the first DCI, or determines that the first DCI further comprises the third information or the fourth information according to the second information, or determines that the first DCI further comprises the third information or the fourth information according to the CRC information of the first DCI.

It should be understood that determining, by the terminal device, that the first DCI further includes the third information or the fourth information according to the CRC information and/or the second information of the first DCI may include: and the terminal equipment determines that the first DCI further comprises third information in a first mode or determines that the first DCI further comprises fourth information in a second mode according to the CRC information and/or the second information of the first DCI. Or the terminal device interprets partial bits in the first DCI into third information or 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 further includes the third information or the fourth information according to the CRC information and the second information of the first DCI, and may include the following several possible design manners:

in one possible implementation, 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 third information.

Since the first DCI including the third information is equivalent to the triggering of the first DCI for a set of aperiodic SRS resources without data and CSI, the first set is: the first DCI scrambled with the first RNTI is a set of information indicated by one or more fields corresponding to the second information in case of a trigger for an aperiodic RS without data and CSI.

Optionally, the first RNTI is a C-RNTI. Alternatively, the first RNTI may be one or more of a C-RNTI, a CS-RNTI and an MCS-C-RNTI, as generally described herein.

In one possible implementation, when 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 including the fourth information is equivalent to the triggering of the first DCI for the set of aperiodic SRS resources with data and/or CSI, the second set is: and under the condition that the first DCI scrambled by the first RNTI is used for triggering the aperiodic RS with data transmission and/or CSI reporting, the information set indicated by one or more fields corresponding to the second information.

In a possible implementation manner, when 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 including the third information is equivalent to the triggering of the first DCI for a set of aperiodic SRS resources without data and CSI, the third set is: and when the first DCI scrambled by the second RNTI is used for triggering the non-periodic RS without data and CSI, the information set indicated by one or more fields corresponding to the second information. The third set may be the same as the first set or may be different from the first set.

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

As a possible implementation manner, the first RNTI is C-RNTI, and the second RNTI is SP-CSI-RNTI, CS-RNT 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 by using RNTIs of different types, the second information included in the first DCI is the same, and other information included in the first DCI may be different. Or, 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 the other information included in the first DCI may also be different.

Optionally, the terminal device may determine that the first DCI further includes the third information or the fourth information only according to 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 the first DCI includes the fourth information. It can be understood that, in this implementation, the second information indicated by the first DCI is the same, the CRC of the first DCI is scrambled differently, and other information included in the first DCI is different.

Since the first DCI including the fourth information is equivalent to the first DCI being used for triggering the aperiodic RS resource sets with data and/or CSI, that is, in this implementation, the first DCI scrambling CRC with the second RNTI may only be used for triggering the aperiodic RS resource sets with data and/or CSI

That is, 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 includes the third information; if the CRC information of the first DCI is scrambled by the second RNTI, the first DCI includes the fourth information.

It should be noted that the CRC of the first DCI is scrambled by the second RNTI, the first DCI includes the fourth information, and equivalently, the CRC of the first DCI is scrambled by the second RNTI, and the first DCI does not include the third information. That is, in this implementation, the CRC of the first DCI is scrambled by the second RNTI, and does not support triggering of the aperiodic RS without data scheduling and CSI reporting trigger.

Optionally, the terminal device may also determine that the first DCI further includes the third information or the fourth information according to the second information. In this implementation, the terminal device does not need to consider the scrambling method of the CRC in the first DCI. It should be understood that, a skilled person may configure in advance a DCI in which CRC information is scrambled using a first RNTI and a DCI in which CRC information is scrambled using a second RNTI, and functions of the DCI are configured to be the same when the second information is the same, so that other information (third information or fourth information) included in the first DCI determined by the terminal device only according to the second information is the same.

As a possible implementation, when the second information belongs to the first set, third information is further included in the first DCI.

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

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

And when the first DCI contains the third information, the terminal equipment transmits the SRS according to the first information and the third information. In other words, in this embodiment, when the first DCI is used for triggering the aperiodic SRS without data and CSI, the third information indicated by the first DCI may be related to transmission information of a triggered RS, so that the terminal device may transmit the RS according to the first information and the third information.

In this embodiment, the third information may be information related to transmission of the SRS. Optionally, in this embodiment of the application, the third information may include: one or more items of available slot information, slot offset information, SRS symbol-level time information of SRS transmission, time domain behavior information of SRS transmission in a plurality of symbols, a group of carrier information of SRS transmission, frequency domain resource information, partial bandwidth information, power control information, spatial domain parameter information, SRS trigger state information and the like.

Illustratively, the available slot information is used to indicate: the SRS is transmitted on the fourth available slot. The slot offset information is: the SRS is a difference between the time slot at which the first DCI is received and the time slot at which the first DCI is received at the beginning of the calculation of the time slot. The higher layer signaling RRC configures a set of slot offsets, including a plurality of slot offsets, where the first DCI may select one of the slot offsets in the set of slot offsets. RS symbol level time information is used to indicate: the symbol positions or the number of different SRS resources. The time domain behavior information for RS transmission over multiple symbols is used to indicate: whether the RS is repeated or whether it is continuously transmitted between symbols. A set of carrier information of RS transmission is used to indicate: the same SRS resource set is transmitted on a plurality of carriers, or resources contained in the same SRS resource set are transmitted on different carriers. The frequency domain resource information is used to indicate: the SRS is transmitted in a partial frequency domain. The partial bandwidth BWP information indicates: BWP where SRS is located; alternatively, the SRS is transmitted in UL BWP or DL BWP. The power control information may include: SRS TPC information. The spatial domain parameter information may include: the corresponding relation between the SRS ports and the antenna ports, the spatial relation of the SRS, the reference signals corresponding to the spatial relation of the SRS and the like. The RS trigger state information is: and the RS request field corresponds to a triggered aperiodic SRS resource set.

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 one implementation, the third information includes one or more of the following fields: an available slot indication field, a slot offset indication field, an RS symbol level time indication field, a multi-symbol indication field, a multi-carrier indication field, a frequency domain resource indication field, a partial bandwidth indication field, a power control field, a spatial domain parameter indication field, an RS trigger state indication field.

When the first DCI includes the fourth information, the terminal device transmits the RS according to the first information. In other words, in this embodiment of the present application, when the first DCI is used for triggering an aperiodic RS with data and/or CSI, the fourth information indicated by the first DCI is unrelated to the RS for transmission. It should be understood that, in this case, the fourth information indicated by the first DCI relates 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 coding scheme MCS information, new data indication new data indicator information, redundancy Version (RV) information, hybrid automatic repeat request (HARQ) process number (process number) information, first downlink allocation index 1st downlink assignment index information, second downlink allocation indication 2st downlink assignment index information, RS resource indication information, precoding management and layer number information, antenna port information, code block group transmission information (block allocation transmission information, CBGTI), phase tracking reference signal-demodulation reference signal relation PTRS-DMRS indication information, beta initialization signal offset information, downlink transmission reference signal initialization information, PUSCH power allocation flag information, downlink demodulation reference signal allocation command information, downlink demodulation control command information, and open loop control channel (dfsr) scheduling 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 one implementation, the fourth information includes one or more of the following fields: the uplink shared channel comprises an uplink shared channel UL-SCH indication field, a CSI request field, an FDRA field, a TDRA field, an FH identification field, an MCS field, a new data indication new data indicator field, an RV field, an HARQ process digital field, a 1st downlink assignment index field, a 2st downlink assignment index field, an RS resource indication field, a precoding information and layer number field, an antenna port field, a CBGTI field, a PTRS-DMRS assignment field, a beta offset indication field, a DMRS sequence initialization field, a DFI flag field, a TPC field, an open-loop power control parameter set indication field and a priority indication field.

In summary, the present application provides an RS method, and a 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 the scheme, the terminal device can identify other information included in the DCI besides the information used for triggering the RS resource set.

And, the third information related to RS transmission in the DCI is additionally indicated, and different from the first information, the terminal device transmits the RS according to the first information and the third information, which may further improve scheduling flexibility of the RS. It should be noted that, in the embodiment of the present application, data transmission and/or CSI reporting may be collectively referred to as data scheduling, data transmission-free and CSI-free reporting may be collectively referred to as data-free scheduling, or data transmission-free and CSI-free reporting may be collectively referred to as SRS-only triggering, which is described herein in a unified manner.

As one possible implementation, 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 an UL-SCH field and/or a CSI request field. The specific situation is as follows:

(1) For a scheme in which the terminal device determines that the first DCI further includes the third information or the fourth information according to the CRC information and the second information of the first DCI:

as a possible implementation manner, when the length of the CSI request field is 0 bit, the second information includes an UL-SCH field, and the bit state of the UL-SCH field included in the first set is 0; when the length of the CSI request field is larger than 0 bit, the second information comprises an UL-SCH field and the CSI request field, the bit state of the UL-SCH field in the first set is 0, and the CSI request field is all 0.

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

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

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

As a possible implementation manner, when the length of the CSI request field is 0 bit, the second information includes an UL-SCH field, and the bit state of the UL-SCH field included in the second set is 1; when the CSI request field length is greater than 0 bit, the second information comprises an UL-SCH field and a CSI request field, the bit state of the UL-SCH field in the second set is 1, and the CSI request field is not all 0.

That is, if the CSI request field length is 0 bit, the first set may include: the bit state of the UL-SCH field is 0; if the CSI request field length is greater than 0 bit, the first set may include: the bit state of the UL-SCH field is 0 and the bit state of the CSI request field is all 0. At this time, as one possible implementation, 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; alternatively, 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 CSI request field length is 0 bits, the first set may include: the bit status of the UL-SCH field is 0, and it is understood that the first set includes: the bit status of the UL-SCH field is 0 and the CSI request field is 0 bits in length.

When the first DCI where the CRC is scrambled by the first RNTI includes the fourth information, the second set may include a state combination of the UL-SCH field and the CSI request field outside the first set.

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

(2) For a scheme in which the terminal device determines that the first DCI further includes the third information or the fourth information only according to the second information:

it should be understood that, according to the foregoing, the first DCI including the third information is equivalent to the triggering of the first DCI for aperiodic RS resource sets without data and without CSI, and the first DCI including the fourth information is equivalent to the triggering of the first DCI for aperiodic RS resource sets with data and/or CSI. Accordingly, the second information is used to indicate that the first DCI further includes third information or fourth information, which is equivalent to the second information used to indicate the first DCI with/without data scheduling, and is equivalent to the combination of the UL-SCH field and the CSI request field being used to indicate the first DCI with/without data scheduling.

Exemplarily, the determination of DCI with/without data scheduling according to the state combination of the UL-SCH field and the CSI request field may be as shown in table 3. Wherein, the bit state of the UL-SCH field is 0 and the length of the CSI request field is 0 bit, and the bit state of the UL-SCH field is 0 and the bit state of the CSI request field is all 0, and the corresponding DCI function is no-data scheduling (including no data and no CSI); the other state combinations all correspond to DCI with data scheduling (with data and/or with CSI).

TABLE 3

The status combinations corresponding to the DCI with data scheduling in table 3 all 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 bit and the length of the CSI request field is 0 bit; or the length of the UL-SCH field is 0 bit and the bit state of the CSI request field is not all 0; or the length of the UL-SCH field is 0 bit and the bit states of the CSI request field are all 0; or the bit state of the UL-SCH field is 1 and the length of the CSI request field is 0 bit; or the bit state of the UL-SCH field is 1 and the bit states of the CSI request fields are not all 0; or the bit state of the UL-SCH field is 1 and the bit states of the CSI request fields are all 0; alternatively, the bit state of the UL-SCH field is 0 and the CSI request field bit state is not all 0.

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

It should be noted that, in the embodiment of the present application, for a scheme that uses a state combination of the UL-SCH field and/or the CSI request field to indicate the second information, all of the schemes may be explained with reference to the state combinations in table 3. Moreover, the explanation of the state combination in table 3 is also applicable to schemes (1) and (3) above, that is, in a scheme in which the terminal device determines that the first DCI further includes the third information or the fourth information according to the CRC information and the second information of the first DCI, the explanation of the second information may also be described with reference to table 3.

Optionally, in the above scheme where the second information is indicated by a status combination of the UL-SCH field and the CSI request field, when the first DCI is used for triggering of an aperiodic RS resource set with data scheduling, the first DCI further includes fourth information, where 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 indication new data indicator information, redundancy version RV information, HARQ process number information, 1st downlink assignment index 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 assignment information, beta offset indication information, 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, priority indication information, and the like.

It should be noted that, in this embodiment of the 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. Thus, 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 of RS transmission, time slot offset information, RS symbol level time information, time domain behavior information of RS transmission in a plurality of symbols, a group of carrier information of RS transmission, frequency domain resource information, partial bandwidth information, power control information, spatial domain parameter information and RS trigger state information.

(3) For a scheme in which the terminal device determines that the first DCI further includes the third information or the fourth information only from the CRC information of the first DCI, the field indicating the second information may be regarded as the fourth information.

It should be understood that in this case the first DCI comprises the fourth information, according to the foregoing. In this implementation, the fourth information may include: one or more of UL-SCH indication information, CSI request information, FDRA information, TDRA information, frequency Hopping (FH) identification information, MCS information, new data indication new data indicator information, redundancy version RV information, HARQ process number information, 1st downlink assignment index 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, bebetta offset indication information, DMRS sequence initialization information, downlink feedback information identification DFI flag information, PUSCH shared power control command for scheduled uplink shared channel, PUSCH shared information, open loop power control parameter set indication information, priority indication information, and the like.

As a possible implementation, the first DCI may also indicate the second information according to a state combination of the FDRA field and/or the FH identification field. Or, the second information includes an FDRA field and/or an FH identification field. It should be noted that, in this implementation manner, corresponding state combinations of the first RNTI-scrambled DCI and the second RNTI-scrambled DCI when the DCI includes the third information may be the same, that is, the first set may be the same as the third set.

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 the state combination of the FDRA field and/or the FH identification field. Or, the second information includes an FDRA field and/or an FH identification field. It should be noted that, in this implementation manner, corresponding state combinations of the first RNTI-scrambled DCI and the second RNTI-scrambled DCI when the first RNTI and the second RNTI-scrambled DCI include the third information may be different, that is, the first set may be different from the third set.

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

It should be noted that, when the resource allocation type is type0, the FDRA field is in a bitmap form, and the FDRA field is all 0 to indicate that no resource is allocated, which is a meaningless indication; when the resource allocation type is 1, the state that the FDRA field is all 1 is reserved, which is also a meaningless indication. Therefore, in the embodiment of the present application, these two statuses are used to indicate whether the first DCI is used for triggering of an aperiodic RS resource set without data scheduling. In addition, when the FDRA field is not in all 0 and all 1 states, the FDRA field is significant and cannot be used alone to indicate the second information, and in this case, the bit state of the FH field is also combined to be 1 to indicate whether the first DCI is used for triggering the aperiodic RS resource set without data scheduling.

Optionally, in the above scheme where the second information is indicated by the state combination of the FDRA field and/or the FH identification field, when the first DCI is used for triggering an aperiodic RS resource set with data scheduling, the fourth information may include: one or more of UL-SCH indication information, CSI request information, TDRA information, MCS information, new data indication new data indicator information, redundancy version RV information, HARQ processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation indication 2st downlink allocation 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, transmission power control command TPC command for scheduled uplink shared channel, PUSCH information, open loop power control parameter set indication information, priority indication information, and the like.

It should be understood that the CRC of the first DCI is scrambled by the second RNTI, and that an FDRA field of all 0's or an FDRA field of all 1's is one of the conditions to determine whether the DCI is used to activate or deactivate semi-persistent CSI. In this embodiment, for the case that the CRC of the first DCI is scrambled by the first RNTI, setting the FDRA field to all 0 s or setting the FDRA field to all 1s is used to determine that the first DCI includes the third field or the fourth field, which may maintain the consistency with the DCI scrambled by the second RNTI, maintain good compatibility, and reduce the complexity of the UE.

As a possible implementation, the first DCI may indicate the second information through a state of the first field. It should be understood that, in this implementation, when the first DCI with the CRC using different scrambling schemes includes the third information, the second information in the first DCI may be the same, that is, the state of the first field may be the same. In other words, the first set and the third set may be the same. Therefore, in this implementation manner, the terminal device may not need to consider the scrambling manner of the first DCI. Optionally, the first set may include that the bit state of the first field belongs to a first set of bit states, and the first set of bit states is used to indicate the bit state corresponding to the first field of the second information when the first DCI includes the third information. Optionally, the first field is a separate field, and is only used to indicate that the first DCI includes the third information or the fourth information. For example, the first field has a bit length of 1 bit and the first set of bit states is 0.

As a possible implementation, the first set is not correlated to the first set of bit states.

It should be understood that, in the above implementation, the methods of using the DCIs with different scrambling modes for the CRC to determine whether to schedule data are the same, and the methods are all determined by the bit state of the first field, which is beneficial to aligning the DCI lengths with different scrambling modes and reducing the blind detection complexity.

As one possible implementation, 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, 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 set of bit states. Optionally, the CSI request field length is 0 bit, 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 a first bit state set; the CSI request field length is greater than 0 bits, the first set comprising: 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 set of bit states. For example, the first field is a 1st downlink assignment index field. The first set of bit states is either predefined or configured for higher layer parameters, e.g. the first set of bit states is all 0's.

It should be understood that, in the above implementation, the second information includes the first field except for the UL-SCH field and the CSI request field, and the first field may be used as a virtual parity bit, so as to improve the detection accuracy and reduce the false alarm probability. The first DCI comprises a 1st downlink assignment index field, the bit length of the 1st downlink assignment index field is determined according to high-level parameters, and the 1st downlink assignment index field in the first field can occupy less bits to realize the function of virtual check bits, so that more bits can be used for redefinition.

As one possible implementation, 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, first field. The CRC of the first DCI is scrambled by the second RNTI, and the second information includes a first field. For example, the first field is a separate field only for indicating that the first DCI contains the third information or the fourth information. For example, the first field has a bit length of 1 bit and the first set of bit states 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 set of bit states. Optionally, when the length of the CSI request field is 0 bit, the first set includes: the bit state of the UL-SCH field is 0, and the bit state of the first field belongs to a first bit state set; when the length of the CSI request field is greater than 0 bit, 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 set of bit states.

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 for the UL-SCH field and the CSI request field, and the first field may serve as a virtual check bit, so that detection accuracy is improved, and false alarm probability is reduced. When the CRC of the first DCI is scrambled by the second RNTI, the second information is a first field, which can ensure the alignment of the DCI lengths of the CRC in different scrambling modes and reduce the complexity of blind detection.

It should be understood that the first field may be a field in the first DCI having other indication functions, and may also be an identification field in the first DCI. The original field in the first DCI can be utilized to fully utilize the bit of the first DCI, thereby saving signaling resources. And the scheme may be facilitated by using a separate identification field in the first DCI. Both schemes can be adopted, and the scheme is not limited in the embodiment of the application. In addition, when the first field is an individual identification field in the first DCI, the length of the first field and the meaning of the bit status indication may be freely defined, which is not limited in this embodiment of the present invention. When the first field is a field having other indication functions in the first DCI, the meaning of the bit status indication may be configured by a higher layer or specified by a predefined rule.

For example, taking the first field as a field in the first DCI having other indication functions as an example, the first field may be an MCS field, the MCS field has 5 bits in total, and may indicate 32 states, however, 4 states are reserved states. For example, a partial status indication of MCS may be as shown in table 4.

TABLE 4

Referring to table 4, the modulation order corresponding to the state with mcs index number 0 is q, the indicated target code rate is 240/q, and the indicated spectral efficiency is 0.2344. Not shown in state table 4 are MCS index numbers 1-27. The state with the MCS index number of 28-31 is a reserved bit, belongs to an idle state, and is not used for indicating a target code rate and spectral efficiency. In this embodiment of the present application, the reserved bits of the 4 states may be redefined to indicate the second information, and the first bit state set may include at least one of the 4 idle states. For example, the first set of bit states includes any one of: 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 31.

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

Optionally, in the above scheme that the second information is indicated by the status of the first field, the fourth information may include: one or more of 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, HARQ process number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation indication 2st downlink allocation 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, transmission power control command TPC command for scheduled uplink shared channel, open loop power control parameter set indication information, priority indication information, and the like.

As a possible implementation, the first DCI may jointly indicate the second information through the UL-SCH field, the CSI request field, and a state of the first field. And a field is additionally added to jointly indicate second information, so that the detection accuracy of the terminal equipment can be improved, and the false alarm probability can be reduced.

Optionally, no matter what scrambling method is used for the CRC of the first DCI, the first DCI indicates the second information by means of the UL-SCH field, the CSI request field, and the status joint indication of the first field. It should be understood that in such an implementation, the first set and the third set may be the same. Based on this scheme, the first set may include: the bit state of the UL-SCH field is 0, the length of the CSI request field is 0 bit, and the bit state of the first field belongs to a first bit state set; alternatively, the bit state of the UL-SCH field is 0, and the bit states of the CSI request field are all 0, and the bit state of the first field belongs to the first set of bit states. The third set may be the same as the first set, and is not described in detail.

Optionally, when CRC information of the first DCI is scrambled by using the first RNTI, the first DCI indicates the second information by means of joint indication of a UL-SCH field, a CSI request field, and a state of the first field; and when the CRC information of the first DCI is scrambled with the second RNTI, the first DCI indicates the second information only by 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 states of the first field belong to a first set of bit states. The third set includes: the bit state of the UL-SCH field is 0, the length of the CSI request field is 0 bit, and the bit state of the first field belongs to a first bit state set; alternatively, the bit state of the UL-SCH field is 0, and the bit states of the CSI request field are all 0, and the bit state of the first field belongs to the first set of bit states.

Optionally, when CRC information of the first DCI is scrambled with the first RNTI, the first DCI indicates the second information only by a state of the first field; and when the CRC information of the first DCI is scrambled by the second RNTI, the first DCI indicates the second information through the UL-SCH field, the CSI request field and the state joint 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, the length of the CSI request field is 0 bit, and the bit state of the first field belongs to a first bit state set; alternatively, the bit state of the UL-SCH field is 0, and the bit states of the CSI request field are all 0, and the bit state of the first field belongs to the first set of bit states. The third set includes: the bit states of the first field belong to a first set of bit states.

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

In addition, in this scheme, when the first DCI which scrambles the CRC with the first RNTI includes the fourth information, the fourth information may include: FDRA information, TDRA information, FH identification information, MCS information, new data indication new data indicator information, redundancy version RV information, HARQ processing number information, second downlink allocation indication 2st downlink assignment indication 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, transmission power control command TPC command for scheduled PUSCH information of a scheduled uplink shared channel, open loop power control parameter set indication information, priority indication information, and the like.

It should be understood that the first DCI may also jointly indicate the second information according to the FDRA field, the FH field, and the state of the first field. The principle of this method is the same as the scheme of the above-mentioned UL-SCH field, CSI request field, and status joint indication of the first field, and the embodiments of the present application are not described herein again.

It should be noted that the first DCI may also jointly indicate the second information through more fields, for example, the second information may be indicated through special statuses of an FDRA field, a hybrid automatic repeat request HARQ process number (process number) field, an MCS field, and a redundancy version field. This is not limited in the embodiments of the present application.

It should be noted that, in the embodiment of the present application, the second information indicated by the special status of the FDRA field, the hybrid automatic repeat request HARQ process number (process number) field, the MCS field, and the redundancy version RV field may be used to determine that the first DCI includes the third information or the fourth information, and may also be used to indicate other functions of the first DCI.

For example, for a first DCI scrambled with SP-CSI-RNTI for CRC, the special state of at least some of the FDRA field, HARQ process number field, MCS field, and redundancy version field may be used to indicate that the first DCI is for activation or deactivation of SP-CSI. For example, the state for indicating activation of SP-CSI may be as shown in table 5, and activation of SP-CSI may be jointly indicated according to the states of the HARQ process number field and the redundancy version field.

TABLE 5

	DCI format 0_1 or format 0_2
		HARQ process field	All 0
Redundancy version field	All 0

Referring to table 5, the format of the first DCI scrambled with the SP-CSI-RNTI is DCI format 0 _1or format 0_2, and when the HARQ process number field is all 0 and the redundancy version field is all 0, the first DCI is used to indicate activation of SP-CSI.

The state for indicating deactivation of SP-CSI may indicate deactivation of SP-CSI according to the HARQ process number field, MCS field, FDRA field, and redundancy version field, as shown in table 6.

TABLE 6

Referring to table 6, when the HARQ process number field is all 0 s, the MCS field is all 1s, the redundancy version field is all 0 s, and the FDRA field is the third bit state set, the first DCI is used to indicate deactivation of the SP-CSI. Wherein the third set of bit states may include: the resource allocation type is type0 and the FDRA field is all 0. Alternatively, the resource allocation type is type1 and the FDRA fields are all 1.

It should be understood that, in the embodiment of the present application, the first DCI has the above-mentioned 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 the received DCI not to be used for data scheduling nor triggering of the RS resource set, the first DCI does not have a function of not triggering the RS resource set nor performing data scheduling, that is, the information carried by the first DCI does 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 first DCI content does not include any one of the following items: the length of a CSI request field in the first DCI is 0 bit, the bit state of an UL-SCH indication field is all 0, and the bit state of an RS request field is all 0; the bit states of the UL-SCH indication field in the first DCI are all 0 s, and the bit states of the CSI request field are all 0 s, and the bit states of the RS request field are all 0 s.

In this embodiment, 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 a CSI request field in the first DCI is 0 bit, the bit state of an UL-SCH indication field is all 0, and the bit state of an RS request field is all 0; the bit state of an UL-SCH indication field in the first DCI is all 0, the bit state of a CSI request field is all 0, and the bit state of an RS request field is all 0; the length of a CSI request field in the first DCI is 0 bit, the bit state of an UL-SCH indication field is 0, and the length of an RS request field is 0 bit; the bit state of the UL-SCH indication field is 0, and the bit state of the CSI request field is all 0, and the RS request field length is 0 bits.

In this embodiment, when the format of the first DCI is DCI format 0_1, unless the CRC of the first DCI is scrambled by using 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.

In the case where the content of the first DCI is not included, it is understood that the terminal device does not desire to receive the DCI including the content. The first DCI does not satisfy any of the following, which is equivalent to that the terminal device does not expect the first DCI to satisfy any of the following.

It should be noted that, in the foregoing method embodiment, the processor 501 in the communication apparatus 50 shown in fig. 5 may call the application program code stored in the memory 502 to instruct the terminal device to perform the action of the terminal device, and the processor 501 in the communication apparatus 50 shown in fig. 5 may call the application program code stored in the memory 502 to instruct the access network device to perform the action of the access network device, which is not limited in this embodiment.

It is to be understood that, in the above embodiments, the method and/or the steps implemented by the terminal device may also be implemented by a component (e.g., a chip or a circuit) that can be used for the terminal device; the methods and/or steps implemented by the access network device may also be implemented by components (e.g., chips or circuits) that may be used in the access network device.

The above description mainly introduces the scheme provided by the embodiment of the present application from the perspective of interaction between various devices. Correspondingly, the embodiment of the application also provides a communication device, and the communication device is used for realizing the 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 for the terminal device; alternatively, the communication device may be the access network device in the foregoing method embodiment, or a device including the foregoing access network device, or a component that can be used for the access network device. It is to be understood that the communication device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above-mentioned functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the communication apparatus may be divided into functional modules according to the 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 integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner 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, which may also be referred to as a transceiver unit, may be, for example, a transceiver circuit, a transceiver, or a communication interface.

Taking the communication device 70 as the terminal device in the above method embodiment as an example:

a transceiver module 701 is configured to acquire the first downlink control information DCI. The first DCI includes an RS request field 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 a triggered RS resource set. A processing module 702, configured to determine that the first DCI further includes the third information or the fourth information according to the CRC information and/or the second information of the first DCI. The transceiver module 701 is further configured to transmit an RS according to the first information and/or the third information.

Optionally, the processing module 702 is configured to, according to the CRC information and/or the second information of the first DCI, further include third information or fourth information, and specifically include: a processing module 702, configured to determine that the first DCI further includes the 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 702 is configured to 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 processing module 702 is configured to 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.

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 determine that the first DCI further includes the third information when the second information belongs to the first set. Alternatively, the processing module 702 is configured to determine that the first DCI further includes the fourth information when the second information belongs to the second set.

Optionally, the processing module 702 is configured to determine that the first DCI further includes third information or fourth information according to the CRC information and/or the second information of the first DCI, and specifically includes: a processing module 702, configured to 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 first set.

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

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

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

It should be noted that all relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

In the present embodiment, the communication device 70 is presented in the form of dividing each functional module in an integrated manner. A "module" herein may refer to a particular ASIC, a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other device that provides the functionality described herein. In a simple embodiment, one skilled in the art will appreciate that the communication device 70 may take the form of the communication device 50 shown in FIG. 5.

For example, the processor 501 in the communication apparatus 50 shown in fig. 5 may execute the instructions by calling a computer stored in the memory 503, so that the communication apparatus 50 executes the RS transmission method in the above-described method embodiment.

Specifically, the functions/implementation procedures 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 calling the computer execution instructions stored in the memory 503. Alternatively, the function/implementation process of the processing module 702 in fig. 7 may be implemented by the processor 501 in the communication apparatus 50 shown in fig. 5 calling a computer executing instruction stored in the memory 503, and the function/implementation process of the transceiving module 701 in fig. 7 may be implemented by the communication interface 504 in the communication apparatus 50 shown in fig. 5.

Since the communication device 70 provided in this embodiment can execute the RS transmission method, the technical effects obtained by the communication device can refer to the method embodiments described above, and are not described herein again.

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

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

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

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the present application are all or partially generated upon loading and execution of computer program instructions on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or can comprise one or more data storage devices, such as servers, data centers, and the like, that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

As used in this application, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being: a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of example, both an application running on a computing device and the computing device can be a component. 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 stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

This application presents various aspects, embodiments, or features around a system that may 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. Furthermore, a combination of these schemes may also be used.

In addition, in the embodiments of the present application, the word "exemplary" is used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term using examples is intended to present concepts in a concrete fashion.

In the embodiments of the present application, information (information), signal (signal), message (message), and channel (channel) may be used in combination, and it should be noted that, when the difference is not emphasized, the intended meaning is consistent. "of", "corresponding", "canceling" and "corresponding" may sometimes be used in combination, and it should be noted that the intended meaning is consistent when differences are not emphasized. The terms "system" and "network" may be sometimes used in a mixed manner, and are intended to be consistent when the distinction is not emphasized, for example, the term "communication system" is also intended to mean "communication network".

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for Reference Signal (RS) transmission, the method comprising:

acquiring first Downlink Control Information (DCI); the first DCI comprises an RS request field, first information and second information, wherein the RS request field is used for indicating a triggered RS resource set; the first information is information related to an RS corresponding to the triggered RS resource set;

determining that the first DCI further comprises third information or fourth information according to Cyclic Redundancy Check (CRC) information and/or the second information of the first DCI;

and transmitting the RS according to the first information and/or the third information.

2. The method of claim 1,

the first information comprises one or more of the following information:

available time slot information, transmission power control information, carrier indication information, uplink or supplementary uplink indication information and partial bandwidth indication information.

3. The method according to claim 1 or 2, wherein the determining that the first DCI further includes third information or fourth information according to the CRC information of the first DCI and/or the second information comprises:

the CRC of the first DCI is scrambled by a first Radio Network Temporary Identifier (RNTI), and the second information belongs to a first set, so that the first DCI also comprises the third information; or,

the CRC of the first DCI is scrambled by a first RNTI, and the second information belongs to a second set, so that the first DCI further comprises the fourth information; or,

the CRC of the first DCI is scrambled by a second RNTI, and the second information belongs to a third set, then the first DCI further includes the third information.

4. The method according to claim 1 or 2, wherein the determining that the first DCI further includes third information or fourth information according to the CRC information of the first DCI and/or the second information comprises:

if the second information belongs to the first set, the first DCI further includes the third information; or,

the second information belongs to a second set, and the first DCI further includes the fourth information.

5. The method according to claim 1 or 2, wherein the determining that the first DCI further includes third information or fourth information according to the CRC information of the first DCI and/or the second information comprises:

the CRC of the first DCI is scrambled by a second RNTI, and the first DCI further includes the fourth information.

6. The method according to any one of claims 3 to 5,

the first DCI includes the third information, the first DCI is for triggering an aperiodic RS resource set without data and CSI; or,

the first DCI includes the fourth information, and the first DCI is used for triggering an aperiodic RS resource set with data and/or CSI.

7. The method according to any one of claims 3 to 6,

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

the second RNTI comprises one or more of: the method comprises the steps of semi-static channel state information radio network temporary identification SP-CSI-RNTI, radio network temporary identification CS-RNTI for configuration scheduling and modulation coding mode cell radio network temporary identification MCS-C-RNTI.

8. The method according to any one of claims 3 to 6,

the third information comprises 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 over multiple symbols, a set of carrier information for RS transmission, frequency domain resource information, partial bandwidth BWP information, power control information, spatial domain parameter information, RS trigger state information.

9. The method of claim 3, 4, 6 or 7,

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

the CSI request field length is greater than 0 bit, then the first set includes: the bit state of the UL-SCH field is 0 and the bit state of the CSI request field is all 0.

10. The method of 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, the length of the CSI request field is 0 bit, and the bit state of the first field belongs to a first bit state set; or,

the bit state of the UL-SCH field is 0, the bit states of the CSI request field are all 0, and the bit state of the first field belongs to a first bit state set;

the third set includes: the bit states of the first field belong to a first set of bit states.

11. The method of claim 3, 4, 6 or 7, wherein the CRC of the first DCI is scrambled by a first RNTI, and wherein the first DCI comprises a first downlink assignment index 1st downlink assignment index field;

the first set includes:

the bit state of the UL-SCH field is 0, the length of the CSI request field is 0 bit, and the bit states of the 1st downlink assignment index field are all 0; 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 1st downlink assignment index field is all 0.

12. The method according to any one of claims 9 to 11,

the fourth information comprises 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 coding scheme MCS information, new data indication new data indicator information, redundancy version RV information, hybrid automatic repeat request HARQ processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation indication 2st downlink allocation 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 relation PTRS-demodulation reference signal association information, beta offset indication information, demodulation reference signal sequence initialization information, downlink feedback information identification DFI flag information, transmission power control command for scheduled PUSCH (physical uplink shared channel) communication for scheduled information, open loop power control parameter set indication information, and DMRS priority indication information.

13. 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 comprises a Frequency Domain Resource Allocation (FDRA) field and/or a Frequency Hopping (FH) field;

the first set includes:

the resource allocation type is a first allocation type, and the bit states of the FDRA field are all 0; or,

the resource allocation type is a second allocation type, and the bit states of the FDRA fields are all 1; or,

the resource allocation type is a second allocation type, the bit state of the FDRA field belongs to a second bit state set, and the bit state of the FH field is 1, the second bit state set indicating that the resource allocation is full bandwidth.

14. The method of claim 13,

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

the uplink shared channel (UL-SCH) indication information, channel State Information (CSI) request information, time Domain Resource Allocation (TDRA) information, modulation and Coding Scheme (MCS) information, new data indication (new data indicator) information, redundancy Version (RV) information, hybrid automatic repeat request (HARQ) processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation indication 2st downlink allocation 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 relation (PTRS-DMRS) association information, beta offset indication information, demodulation reference signal (DMRS) sequence initialization information, downlink feedback information identification (DFI) flag information, transmission power control command (TPC) for scheduled PUSCH (physical uplink shared channel) information, open loop power control parameter set indication information and priority indication information.

15. The method according to any of claims 1-14, wherein said transmitting the RS according to the first information and/or the third information comprises:

if the first DCI further includes the third information, the RS is transmitted according to the first information and the third information; or,

and if the first DCI further comprises the fourth information, the RS is sent according to the first information.

16. The method according to any one of claims 1 to 15,

the format of the first DCI is DCI format 0 _1or DCI format 0_2, and the first DCI does not satisfy any one of the following items:

the bit state of the RS request field is all 0, the length of the CSI request field is 0 bit, and the bit state of the UL-SCH indication field is all 0; the bit states of the RS request field are all 0 s, and the bit states of the UL-SCH indication field are all 0 s, and the bit states of the CSI request field are all 0 s.

17. The method of any one of claims 1 to 16,

the format of the first DCI is DCI format 0_2, and the first DCI does not satisfy any one of the following items:

the RS request field is 0 bit in length, the CSI request field is 0 bit in length, and the bit state of the UL-SCH indication field is 0;

the RS request field is 0 bits in length, and the bit state of the UL-SCH indication field is 0, and the bit state of the CSI request field is all 0.

18. The method according to any one of claims 1 to 17,

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 satisfy the following condition:

the bit states of the RS request field are all 0, and the bit states of the UL-SCH indication field are 0, and the bit states of the CSI request field are all 0.

19. A method for Reference Signal (RS) transmission, the method comprising:

transmitting first downlink control information DCI; the first DCI comprises an RS request field, first information and second information, wherein the RS request field is used for indicating a triggered RS resource set, and the first information is 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 further includes third information or fourth information;

and receiving the RS according to the first information and/or the third information.

20. The method of claim 19,

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

21. The method of claim 20, wherein the first DCI including the third information or the fourth information is determined according to the second information and/or CRC information of the first DCI, comprising:

the CRC of the first DCI is scrambled by a first Radio Network Temporary Identifier (RNTI), and the second information belongs to a first set, so that the first DCI comprises the third information; or,

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

the CRC of the first DCI is scrambled by a second RNTI, and the second information belongs to a third set, then the first DCI includes the third information.

22. The method of claim 20 or 21, wherein the first DCI including the third information or the fourth information is determined according to the second information and/or CRC information of the first DCI, comprising:

the second information belongs to a first set, and the first DCI comprises the third information; or,

the second information belongs to a second set, and the first DCI includes the fourth information.

23. The method according to claim 20 or 21, wherein the first DCI comprising the third information or the fourth information is determined according to the second information and/or CRC information of the first DCI, comprising:

the CRC of the first DCI is scrambled by a second RNTI, and the first DCI includes the fourth information.

24. The method of any one of claims 21-23,

25. The method of any one of claims 20-24,

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

26. The method of any one of claims 20-24,

the third information comprises one or more of the following information:

27. The method of claim 21, 22, 24, 25 or 26,

the CSI request field length is greater than 0 bits, then the first set comprises: the bit state of the UL-SCH field is 0 and the bit state of the CSI request field is all 0.

28. The method of claim 21, 22, 24, 25 or 26, wherein the first DCI further comprises a first field;

the first set includes:

29. The method of claim 21, 22, 24, 25 or 26, wherein the CRC of the first DCI is scrambled by a first RNTI, the first DCI comprising a first downlink assignment index 1st downlink assignment index field;

the first set includes:

30. The method of any one of claims 27-29,

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

the 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 (MCS) information, new data indication new data indicator information, redundancy Version (RV) information, hybrid automatic repeat request (HARQ) processing number information, first downlink allocation index 1st downlink allocation index information, second downlink allocation indication 2st downlink allocation 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 relation (PTRS-DMRS-association information), beta bias indication information, demodulation reference signal (DMRS) sequence initialization information, downlink feedback information identification (DFI) flag information, TPC transmission power control command for scheduled Physical Uplink Shared Channel (PUSCH) information, open loop power control parameter set indication information and priority indication information.

31. The method of claim 21, 22, 24, 25 or 26, wherein the format of the first DCI is DCI format 0_1, and wherein the first DCI comprises a Frequency Domain Resource Allocation (FDRA) field and/or a Frequency Hopping (FH) field;

the first set includes:

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

the resource allocation type is a second allocation type, the bit state of the FDRA field belongs to a second bit state set, and the bit state of the FH field is 1, where the second bit state set is used to indicate that the resource allocation is a full bandwidth measurement.

32. The method of claim 31,

the fourth information comprises one or more of the following information:

33. The method according to any of claims 19-32, wherein said receiving RS according to the first information and/or the third information comprises:

if the first DCI includes the third information, receiving the RS according to the first information and the third information; or,

if the first DCI includes the fourth information, the RS is received according to the first information.

34. The method of any one of claims 19-33,

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

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

the bit states of the RS request field are all 0 s, and the bit states of the UL-SCH indication field are all 0 s, and the bit states of the CSI request field are all 0 s.

35. The method of any one of claims 19-34,

the RS request field is 0 bit in length, the UL-SCH indication field is 0 bit in length, and the bit state of the CSI request field is all 0;

36. The method of any one of claims 19-35,

37. A communication apparatus, characterized in that the communication apparatus comprises: a processor and a memory;

the memory is for storing computer executable instructions that, when executed by the processor, cause the communication device to perform the method of any of claims 1-18 or 19-36.

38. A communication apparatus, characterized in that the communication apparatus comprises: a processor and an interface circuit;

the interface circuit is used for receiving computer execution instructions and transmitting the computer execution instructions to the processor;

the processor is configured to execute the computer-executable instructions to cause the communication device to perform the method of any of claims 1-18 or 19-36.

39. A computer-readable storage medium, in which a computer program is stored which, when executed by a computer, causes the computer to carry out the method of any one of claims 1-18 or 19-36.