WO2022082805A1

WO2022082805A1 - Communication method and device

Info

Publication number: WO2022082805A1
Application number: PCT/CN2020/123455
Authority: WO
Inventors: 刘晓晴; 张永平; 余政; 李铁; 纪刘榴
Original assignee: 华为技术有限公司
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2022-04-28
Also published as: CN116438875A

Abstract

A communication method and device, the method comprising: a first communication device acquires first information and first downlink control information (DCI). The first DCI comprises an information block respectively corresponding to at least one communication device. The at least one communication device comprises the first communication device. The first information is used for determining information related to the information block corresponding to the first communication device in the first DCI, and determining whether the information block corresponding to the first communication device comprises second information or third information. The second information is used for determining information related to a first reference signal, which is associated with first configuration information. The third information is used for determining information related to a second reference signal, which is associated with second configuration information. The first configuration information is different from the second configuration information. The first communication device determines the second information and/or the third information in the first DCI according to the first information. The flexibility of reference signal scheduling can be improved using the method.

Description

A communication method and device

technical field

The embodiments of the present application relate to the field of wireless communication, and in particular, to a communication method and apparatus.

Background technique

In the fifth-generation wireless access system standard new radio (NR), the network device configures the terminal device to send a sounding reference signal (SRS). In different application scenarios, the SRS can achieve different Features. Exemplarily, the SRS can implement four different functions, including codebook-based uplink channel state information (CSI) detection, non-codebook-based uplink CSI detection, beam management, and antenna switching. Among them, for the time division duplexing (TDD) system, considering the reciprocity of the uplink and downlink channels, the network device can obtain the downlink channel information according to the uplink channel information detected by the SRS used for the antenna switching function, so as to perform downlink channel information. Link precoding configuration.

Specifically, a user equipment (user equipment, UE) can be configured with one or more SRS resource sets through the high-level parameter SRS-ResourceSet, and the applicability of each SRS resource set is determined by the high-level parameter SRS-ResourceSet in the SRS-ResourceSet. Use case (usage) configuration. Exemplarily, usage includes four use cases: codebook (codebook), non-codebook (nonCodebook), beam management (beamManagement), and antenna switching (antennaSwitching), respectively corresponding to the four different functions that the SRS can implement. For each SRS resource set, one UE may be configured to include one or more SRS resources by a higher layer parameter SRS-Resource (SRS-Resource).

For the downlink control information (DCI) format, the triggering of SRS transmission is either bound to data scheduling, or usage can only be configured as one type, which makes SRS scheduling inflexible.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a communication method and apparatus to solve the problem of inflexible scheduling of SRS.

In a first aspect, an embodiment of the present application provides a communication method, the method includes: a first communication device acquires first information and first downlink control information DCI; the first DCI includes information blocks corresponding to at least one communication device respectively , the at least one communication device includes the first communication device; the first information is used to determine the relevant information of the information block corresponding to the first communication device in the first DCI, and the first communication device Whether the corresponding information block includes second information and third information; the second information is used to determine the related information of the first reference signal, the first reference signal is associated with the first configuration information; the third information is used for determining the relevant information of the second reference signal, the second reference signal is associated with the second configuration information; the first configuration information is different from the second configuration information; according to the first information, in the first DCI to determine the second information and/or the third information. It should be understood that the method can be applied to a terminal device or a chip/chip system on the terminal device.

With the above method, the first DCI can trigger multiple terminal devices to send reference signals for different configurations at one time, which further saves the signaling overhead of the physical downlink control channel. Decoupling makes the configuration of reference signals more independent and flexible, thereby increasing the flexibility of system scheduling.

In a possible design, the information block corresponding to the first communication device includes the second information and the third information; the related information of the first reference signal is determined according to the second information; and The third information determines related information of the second reference signal; and the first reference signal and the second reference signal are sent.

With the above design, the terminal device can send the first reference signal and the second reference signal according to the second information and the third information, respectively.

In a possible design, the information block corresponding to the first communication apparatus includes the third information; the related information of the second reference signal is determined according to the third information; and the second reference signal is sent.

With the above design, the terminal device can send the second reference signal according to the third information.

In a possible design, the third information includes relevant information for requesting reference signals, relevant information for carrier indication, relevant information for partial bandwidth indication, relevant information for port indication, and relevant information for port indication. At least one of the relevant information indicated by the TPC command and the relevant information used for the time slot offset indication; wherein, the relevant information for requesting a reference signal is used to trigger the second reference signal resource set; the used for The relevant information of the carrier indication is used to indicate at least one carrier where the second reference signal is located; the relevant information used for the partial bandwidth indication is used to indicate at least one partial bandwidth where the second reference signal is located; The relevant information of the port indication is used to indicate the port number of the second reference signal, or the port sequence number of the second reference signal, or the preset port group sequence number of the second reference signal, or the second reference signal. Switching of the number of ports for the signal.

With the above design, the third information can be a combination of multiple fields.

In a possible design, the information block corresponding to the first communication device includes second information and third information; the first information is used to determine the starting position of the second information and the starting position of the third information start position.

With the above design, the terminal device can determine the second information and the third information in the information block corresponding to the first communication device according to the starting position of the second information and the starting position of the third information.

In a possible design, the first information is used to determine the starting position, the first indication information and the second indication information of the information block corresponding to the first communication device; the first indication information is used to determine Whether the information block corresponding to the first communication device includes the second information; the second indication information is used to determine whether the information block corresponding to the first communication device includes the third information.

With the above design, the terminal device can determine the starting position, the first indication information and the second indication information of the information block corresponding to the first communication device according to the first information, and then determine whether the information block corresponding to the first communication device includes the second information and/or third information.

In a possible design, the first information is used to determine the starting position of the information block corresponding to the first communication device, the length of the second information, and third indication information; the third indication information for determining whether the information block corresponding to the first communication device includes the third information.

With the above design, the terminal device can determine the starting position of the information block corresponding to the first communication device, the length of the second information and the third indication information according to the first information, and then determine whether the information block corresponding to the first communication device includes the second information information and/or third information.

In a possible design, the first information is used to determine the start position of the information block corresponding to the first communication apparatus and the length of the second information.

With the above design, the terminal device can determine the starting position of the information block corresponding to the first communication device and the length of the second information according to the first information, and then determine whether the information block corresponding to the first communication device includes the second information and/or the second information. Three information.

In a possible design, the first information is used to determine the starting position of the information block corresponding to the first communication device and fourth indication information, where the fourth indication information is used to indicate the third information starting position.

With the above design, the terminal device can determine the starting position and fourth indication information of the information block corresponding to the first communication device according to the first information, and then determine whether the information block corresponding to the first communication device includes the second information and/or the third information information.

In a possible design, the first information is used to determine a start position of an information block corresponding to the first communication device and fifth indication information, where the fifth indication information is used to indicate the second information starting position.

With the above design, the terminal device can determine the starting position and fifth indication information of the information block corresponding to the first communication device according to the first information, and then determine whether the information block corresponding to the first communication device includes the second information and/or the third information information.

In a possible design, the first information is used to determine the starting position of the information block corresponding to the first communication device and sixth indication information, where the sixth indication information is used to determine the first communication Whether the information block corresponding to the device includes the second information.

With the above design, the terminal device can determine the starting position and sixth indication information of the information block corresponding to the first communication device according to the first information, and then determine whether the information block corresponding to the first communication device includes the second information and/or the third information information.

In a possible design, the first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching.

In another possible design, the first configuration information includes parameters for carrier switching, the second configuration information does not include parameters for carrier switching, or the second configuration information includes parameters for non-carrier switching.

In a second aspect, an embodiment of the present application provides a communication method, the method includes: a second communication device generates a first DCI and first information; the first information is configured by first high-layer configuration information; the first DCI includes Information blocks corresponding to at least one communication device respectively, the at least one communication device includes the first communication device; the first information is used to indicate the correlation of the information blocks corresponding to the first communication device in the first DCI information, and whether the information block corresponding to the first communication device includes second information and third information; the second information is used to indicate the related information of the first reference signal, the first reference signal and the first configuration information association; the third information is used to indicate the related information of the second reference signal, the second reference signal is associated with the second configuration information; the first configuration information is different from the second configuration information; sending the first information and the first DCI. It should be understood that the method can be applied to a network device or a chip/chip system on a network device.

In a possible design, the information block corresponding to the first communication apparatus includes the second information and the third information; and the first reference signal and the second reference signal are received.

In a possible design, the information block corresponding to the first communication apparatus includes the third information; and the second reference signal is received.

In a possible design, the information block corresponding to the first communication device includes second information and third information; the first information is used to indicate the starting position of the second information and the starting position of the third information start position.

In a possible design, the first information is used to indicate the starting position, first indication information and second indication information of the information block corresponding to the first communication device; the first indication information is used to indicate Whether the information block corresponding to the first communication device includes the second information; the second indication information is used to indicate whether the information block corresponding to the first communication device includes the third information.

In a possible design, the first information is used to indicate the starting position of the information block corresponding to the first communication device, the length of the second information, and third indication information; the third indication information It is used to indicate whether the information block corresponding to the first communication device includes the third information.

In a possible design, the first information is used to indicate the start position of the information block corresponding to the first communication apparatus and the length of the second information.

In a possible design, the first information is used to indicate the starting position of the information block corresponding to the first communication apparatus and fourth indication information, and the fourth indication information is used to indicate the third information starting position.

In a possible design, the first information is used to indicate a start position of an information block corresponding to the first communication device and fifth indication information, and the fifth indication information is used to indicate the second information starting position.

In a possible design, the first information is used to indicate the starting position of the information block corresponding to the first communication apparatus and sixth indication information, where the sixth indication information is used to indicate the first communication Whether the information block corresponding to the device includes the second information.

In a third aspect, an embodiment of the present application provides a communication apparatus, the apparatus includes a module for implementing any one of the possible designs of the first aspect and the first aspect, or performs any of the second aspect and the second aspect. Modules of any possible design.

In a fourth aspect, a communication apparatus is provided, including a processor. The processor is coupled to the memory and can be used to execute instructions in the memory to implement any of the possible designs of the first aspect above, or to execute modules of any of the possible designs of the second aspect and the second aspect. Optionally, the communication device further includes a communication interface, the processor is coupled to the communication interface, the communication interface is used for inputting and/or outputting information, and the information includes at least one of instructions and data. Optionally, the communication device further includes a memory.

In an implementation manner, the communication apparatus is a terminal device or a network device. When the communication device is a terminal device or a network device, the communication interface may be a transceiver, or an input/output interface. Optionally, the transceiver may be a transceiver circuit. Optionally, the input/output interface may be an input/output circuit.

In another implementation manner, the communication apparatus is a chip or a chip system configured in a terminal device or a network device. When the communication device is a chip or a chip system configured in the terminal device, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit, and the like. The processor may also be embodied as a processing circuit or a logic circuit.

In a fifth aspect, an embodiment of the present application provides a communication device, including a processor and an interface circuit, where the interface circuit is used to input and/or output information, the information includes at least one of instructions and data, and through the The interface circuit is capable of receiving signals from other communication devices than the communication device and transmitting to the processor or sending signals from the processor to other communication devices than the communication device, the processor A logic circuit or execution of code instructions is used to implement any one of the possible designs of the first aspect and the first aspect, or to implement any one of the possible designs of the second aspect and the second aspect.

In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program or instruction is stored in the storage medium, and when the computer program or instruction is executed by a communication device, the first aspect and the first aspect are implemented Any one of the possible designs or any one of the possible designs that implement the second aspect and the second aspect.

In a seventh aspect, an embodiment of the present application provides a computer program product including a program, which, when running on a communication device, enables the communication device to execute any one of the possible designs of the first aspect and the first aspect or to execute the second Any of the possible designs of the aspect and the second aspect.

Description of drawings

FIG. 1 is a schematic diagram of an architecture of a mobile communication system provided by an embodiment of the present application;

FIG. 2 is one of schematic diagrams of information blocks provided by an embodiment of the present application;

3 is an overview flowchart of a communication method provided by an embodiment of the present application;

FIG. 4 provides one of the schematic diagrams of information blocks including second information and third information for an embodiment of the present application;

FIG. 5 provides the second schematic diagram of an information block including second information and third information in an embodiment of the present application;

FIG. 6 is one of schematic structural diagrams of a communication device provided by an embodiment of the present application;

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

Detailed ways

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

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (freq terminal equipment ncy division duplex, FDD) system, LTE time division duplex ( time division duplex, TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, 5G mobile communication system or new radio access technology (new radio access technology) Access Technology, NR). The 5G mobile communication system may include a non-standalone (NSA, NSA) and/or an independent network (standalone, SA).

The technical solutions provided in this application can also be applied to machine type communication (MTC), Long Term Evolution-machine (LTE-M), device-to-device (D2D) Network, machine to machine (M2M) network, internet of things (IoT) network or other network. The IoT network may include, for example, the Internet of Vehicles. Among them, the communication methods in the Internet of Vehicles system are collectively referred to as vehicle to other devices (vehicle to X, V2X, X can represent anything), for example, the V2X may include: vehicle to vehicle (vehicle to vehicle, V2V) communication, vehicle and vehicle Infrastructure (V2I) communication, vehicle to pedestrian (V2P) or vehicle to network (V2N) communication, etc.

The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system. This application does not limit this.

It should be noted:

First, in this application, "for indicating" may include direct indicating and indirect indicating. When describing a certain indication information for indicating A, the indication information may directly indicate A or indirectly indicate A, but it does not mean that A must be carried in the indication information.

The information indicated by the indication information is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated. For example, but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the information to be indicated. Indicating the index of information, etc. The information to be indicated may also be indirectly indicated by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be implemented by means of a pre-agreed (for example, a protocol stipulated) arrangement order of various information, so as to reduce the indication overhead to a certain extent. At the same time, the common part of each piece of information can also be identified and indicated uniformly, so as to reduce the indication overhead caused by indicating the same information separately. The information to be indicated may be sent together as a whole, or may be divided into multiple sub-information and sent separately, and the transmission periods and/or transmission timings of these sub-information may be the same or different. The specific sending method is not limited in this application. The sending period and/or sending timing of these sub-information may be predefined, for example, predefined according to a protocol, or configured by the transmitting end device by sending configuration information to the receiving end device. Wherein, the configuration information may include, for example, but not limited to, one or a combination of at least two of radio resource control signaling, medium access control (medium access control, MAC) layer signaling, and physical layer signaling. Among them, the radio resource control signaling, such as packet radio resource control (radio resource control, RRC) signaling; MAC layer signaling, for example, includes MAC control element (control element, CE); physical layer signaling, for example, includes downlink control information (downlink control information). information, DCI).

Second, in the embodiments shown below, the first, the second, and various numeral numbers are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application. For example, distinguish different indication information and so on.

Third, in this application, "used to indicate" and "used to determine" can be interchanged. For a certain information or indication information, it can be considered that it is used to indicate a certain object to be indicated from the network side, or it is a It is used by the receiving end to determine the object to be indicated; from the terminal side, a certain information or indication information can be considered to be used to indicate a certain object to be indicated, or it can be considered to be used to determine the object to be indicated.

Fourth, "preset", "predefined" or "preconfigured" can be achieved by pre-saving corresponding codes, tables or other means that can be used to indicate relevant information in the device (for example, including terminal equipment and network equipment). , this application does not limit its specific implementation. Wherein, "saving" may refer to saving in one or more memories. The one or more memories may be provided separately, or may be integrated in an encoder or decoder, a processor, or a communication device. The one or more memories may also be partially provided separately and partially integrated in the decoder, processor, or communication device. The type of memory may be any form of storage medium, which is not limited in this application.

Fifth, the "protocols" involved in the embodiments of this application may refer to standard protocols in the communication field, such as LTE protocols, NR protocols, and related protocols applied in future communication systems, which are not limited in this application.

Fifth, "at least one" means one or more, and "plurality" means two or more. "And/or", which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (a) of a, b and c can represent: a, or, b, or, c, or, a and b, or, a and c, or, b and c, or, a , b and c. Where a, b and c can be single or multiple respectively.

Sixth, in the embodiments of this application, descriptions such as "when", "in the case of", "if", and "if" all refer to a device (such as a terminal device or network equipment) will make corresponding processing, which is not a time limit, and also does not require equipment (such as terminal equipment or network equipment) to have judgment actions during implementation, nor does it mean that there are other limitations.

First, the architecture of the mobile communication system to which the embodiments of the present application are applied is briefly introduced.

FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the present application is applied. As shown in FIG. 1 , the mobile communication system includes a core network device 110 , a radio access network device 120 and at least one terminal device (such as the terminal device 130 and the terminal device 140 in FIG. 1 ). The terminal equipment is wirelessly connected to the wireless access network equipment, and the wireless access network equipment is wirelessly or wiredly connected to the core network equipment. The core network device and the radio access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the radio access network device can be integrated on the same physical device, or they can be one physical device. It integrates the functions of some core network equipment and some functions of the wireless access network equipment. Terminal equipment can be fixed or movable. FIG. 1 is just a schematic diagram, and the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1 . The embodiments of the present application do not limit the number of core network devices, wireless access network devices, and terminal devices included in the mobile communication system.

The terminal device is wirelessly connected to the wireless access network device, so as to access the mobile communication system. The radio access network equipment can be a base station (base station), an evolved NodeB (eNodeB), a transmission reception point (TRP), and a next generation NodeB (gNB) in the 5G mobile communication system , the base station in the future mobile communication system or the access node in the WiFi system, etc.; it can also be a module or unit that completes some functions of the base station, for example, it can be a centralized unit (CU) or a distributed unit (distributed unit, DU). The embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device. In this application, wireless access network equipment is referred to as network equipment, and unless otherwise specified, network equipment refers to wireless access network equipment.

A terminal device may also be referred to as a terminal, user equipment (UE), a mobile station, a mobile terminal, and the like. The terminal equipment can be mobile phone, tablet computer, computer with wireless transceiver function, virtual reality terminal equipment, augmented reality terminal equipment, wireless terminal in industrial control, wireless terminal in unmanned driving, wireless terminal in remote surgery, smart grid wireless terminals in transportation security, wireless terminals in smart cities, wireless terminals in smart homes, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

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

The network device and the terminal device can communicate through the licensed spectrum, the unlicensed spectrum, or the licensed spectrum and the unlicensed spectrum at the same time. The network device and the terminal device can communicate through the frequency spectrum below 6 GHz (gigahertz, GHz), and can also communicate through the frequency spectrum above 6 GHz, and can also use the frequency spectrum below 6 GHz and the frequency spectrum above 6 GHz for communication at the same time. The embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.

The following briefly describes the technical concepts involved in the embodiments of the present application.

1. Detection reference signal

From the perspective of time domain behavior, an NR SRS resource set can be configured as a periodic sounding reference signal (Periodic SRS, P-SRS), a semi-persistent sounding reference signal (Semi-persistent SRS, SP-SRS) through the high-level parameter resource type (resourceType) SRS) and aperiodic sounding reference signal (Aperiodic SRS, AP-SRS) three time domain behaviors.

Wherein, the slot format of NR includes downlink symbols, uplink symbols and flexible symbols, and SRS can only be sent on uplink symbols or flexible symbols. The network device configures each SRS resource through high-level parameter resource mapping (resourceMapping) to send the number of consecutive orthogonal frequency division multiplexing (OFDM) symbols of the resource and the number of occupied by the resource in the triggered timeslot. The starting symbol position. For periodic SRS, each SRS resource will be configured with a slot-level period and a slot-level offset, and the UE will repeatedly transmit the SRS according to the period. For semi-persistent SRS, each SRS resource is also configured with a slot-level period and a slot-level offset, and an activation or deactivation command is sent through a medium access control element (MAC control element, MAC CE). When the semi-persistent SRS is activated, the UE will repeatedly transmit the SRS periodically until the deactivation command is received. Among them, for aperiodic sounding reference signal (aperiodic SRS, AP-SRS), when the UE receives a downlink control information (downlink control information, DCI) for downlink scheduling, or group common (group common) DCI or uplink scheduling DCI , if the DCI includes an SRS request (SRS request) field, there is at least one state in the SRS request (SRS request) field for triggering the configured one or more SRS resource sets. Exemplarily, the SRS request field has 2 bits, and the specific definitions are shown in Table 1. Wherein, for DCI format (format) 2_3, the upper layer parameter sounding reference signal transmission power control downlink control channel group (srs-TPC-PDCCH-Group) can be set to "type A (typeA)" or "type B (typeB)". For DCI format 0_1,0_2,1_1,1_2,2_3 (the high layer parameter srs-TPC-PDCCH-Group is set to "typeB") high layer parameter aperiodic sounding reference signal resource trigger (aperiodicSRS-ResourceTrigger) or high layer parameter aperiodic sounding reference signal The resource trigger list (aperiodicSRS-ResourceTriggerList) can be configured as 1 or 2 or 3.

Table 1 SRS request

When multiple UEs perform cyclic redundancy check (CRC) scramble through the same transmission power control sounding reference signal radio network temporary identifier (TPC-SRS-RNTI), they can be scrambled by the same DCI format 2_3 DCI The signaling triggers the sending of the SRS. At this time, one DCI can trigger multiple UEs to send multiple SRSs. However, this triggering method is only applicable to the scenario where the SRS is used to measure the uplink channel to obtain the downlink channel information in a system with uplink and downlink disparity, and the number of uplink carriers is less than the number of downlink carriers, and carrier switching is required. That is to say, this triggering method can only be used for SRS resource sets whose usage is 'antennaSwitching'. For SRS resource sets of other functions, this method cannot be used to trigger multiple UEs to send at the same time.

It should be noted that, for a UE that is not configured with supplementary uplink, the SRS request field includes 2 bits. The value of the SRS request field can be as shown in Table 1.

For the UE configured with the parameter supplementary uplink (supplementaryUplink) in the serving cell parameter (ServingCellConfig), the SRS request field has 3 bits, of which the first bit is the uplink/supplementary uplink indicator bit, which is defined as shown in Table 2. The definitions of the second and third bits are shown in Table 1.

Table 2 Up/Supplementary Up Indication Bits

上行/补充上行指示位取值Uplink/Supplementary Uplink Indication Bit Value	上行up
00	非补充上行non-supplementary upside
11	补充上行Supplement Upstream

The network device will define a slot-level offset for each SRS resource set through the high-level parameter slotOffset (slotOffset). Assuming that the UE receives the DCI triggering the aperiodic SRS in the slot n, the UE will be shown in the following formula: The time slot to send the SRS is sent in the triggered aperiodic SRS resource set.

The network device configures the number of consecutive OFDM symbols of the SRS resource and the starting symbol position occupied by the resource in the triggered time slot through the high-level parameter resourceMapping, thereby determining the sending position of the SRS resource in a time slot. Among them, k is configured for each SRS resource set by the high layer parameter slotOffset and is determined based on the subcarrier spacing of the triggered SRS transmission, μ _SRS and μ _PDCCH are the triggered SRS and the physical downlink control channel (physical downlink control channel (physical downlink) carrying the trigger command, respectively). The subcarrier spacing configuration of the downlink control channel, PDCCH). For unaligned frames,

Defined as the time slot offset between primary cell (PCell)/primary secondary cell (PScell) A and secondary cell (SCell) B,

Configured for the higher layer parameter ca-SlotOffset on the carrier sending the PDCCH

Configured for the higher layer parameter ca-SlotOffset on the carrier sending the SRS

μ _offset is defined as the maximum value of the lowest sub-carrier spacing configuration among all the sub-carrier spacings configured for each cell, and μ _{offset, PDCCH} is μ _offset configured by the high layer parameter ca-SlotOffset on the carrier that sends the PDCCH, μ _{offset, PDCCH} is the μ _offset configured by the high layer parameter ca-SlotOffset on the carrier sending the SRS.

For example, suppose a time slot containing only downlink symbols is defined as "D", a time slot containing only uplink symbols and flexible symbols is defined as "U", and a time slot containing both downlink symbols, uplink symbols and flexible symbols is defined as " S", it is assumed here that the uplink symbols and flexible symbols contained in "S" can meet the transmission requirements of all SRS resources in the aperiodic SRS resource set. When the time slot format is configured as "DDDSU", for different high-layer parameter slotOffset configurations, the possible trigger situations are shown in Table 3 below:

Table 3 Aperiodic SRS trigger example

Slot offsetSlot offset	DD	DD	DD	SS	UU
11			PDCCHPDCCH	SRSSRS
22		PDCCHPDCCH		SRSSRS
22			PDCCHPDCCH		SRSSRS
33	PDCCHPDCCH			SRSSRS
33		PDCCHPDCCH			SRSSRS

That is, when the slotOffset of the SRS resource set is configured as 1, the DCI containing the SRS request field that triggers the resource set can only be sent on the third "D". The sending position of the set is time slot 3, that is, "S"; when the slotOffset of the SRS resource set is configured as 2, if the DCI containing the SRS request field that triggers the resource set is sent on the second "D", the above Time slot n=1, k=2, the sending position of the resource set is time slot 3, that is, "S", if the DCI containing the SRS request field that triggers the resource set is sent on the third "D", at this time The above time slot n=2, k=2, the transmission position of the resource set is time slot 4, that is, "U".

3. Carrier switching

When performing carrier aggregation, the UE can usually aggregate a large number of downlink carriers, while the number of aggregated uplink carriers is relatively small. Carriers in time division duplexing (TDD) mode support both uplink and downlink transmissions. Since the number of aggregated downlink carriers that a UE can support is usually more than the number of uplink carriers, for a UE, there may be an evolutionary In a certain carrier scheduled by a UE, the base station only performs downlink transmission scheduling on the UE, but does not perform uplink transmission scheduling on the UE.

According to the channel dissimilarity, for some downlink channel measurements, such as precoding matrix index (PMI), the SRS is sent through the UE by using the channel dissimilarity feature, so that the network device can obtain downlink channel measurements about the PMI by detecting the SRS. At this time, the network device needs the UE to send some uplink information on the carrier. For example, the eNB needs the UE to send the uplink SRS on the carrier to be sent on the Physical Downlink Shared Channel (PDSCH) to obtain the corresponding channel estimate. However, since the UE is not scheduled to perform uplink transmission on the carrier, the SRS cannot be sent on the carrier, so that the network device cannot obtain the corresponding channel estimate. In this case, it is an effective method to allow fast carrier switching, which can ensure that the SRS is transmitted on these TDD carriers so that the network device can obtain the channel conditions corresponding to these TDD carriers. That is to say, since the downlink carrier aggregation capability of the UE is greater than the uplink carrier aggregation capability, the UE has no uplink transmission on some time division duplex carriers for downlink transmission. In order to ensure the timely transmission of SRS, carrier switching is required.

In addition, when the SRS is rapidly switched between carriers, in order to ensure that the network device can perform correct SRS detection on the carrier after the switch, it is necessary to perform SRS transmission power control, that is, the switched carrier only transmits the SRS and no PUSCH transmission. The current SRS closed loop power control follows the PUSCH power control, but in this case there is no specific PUSCH uplink grant for such a switched carrier. Therefore, there is a need to provide power control commands to carriers that are only used for SRS transmission. In addition, the target power parameter of the power control formula in the existing protocol TS38.213 needs to be set. Therefore, when the UE is configured to transmit SRS on a certain carrier but is not configured to perform PUSCH transmission, a specific high-level configuration is required, and a specific transmission power control command value for the corresponding carrier is required, that is, the DCI format 2_3 Features.

4. DCI format 2_3

DCI format 2_3 is applied to the uplink carrier of the serving cell where the UE is not configured for PUSCH or PUCCH transmission, or applied to the uplink carrier of the serving cell where the power control adjustment state of SRS transmission and PUSCH transmission is independent.

As shown in Figure 2, DCI format 2_3 includes information blocks (block) 1, block 2, ..., block number K, where K is a positive integer. The information blocks here are used to indicate power control information corresponding to SRS transmission, and each information block indicates power control information of one or more cells. In this application, an information block may also be simply referred to as a block.

The starting position of the information block to be decoded by each UE is paired with the starting bit (startingBitOfFormat2-3) of the high-level parameter format 2-3 or the starting bit (startingBitOfFormat2-3SUL-v1530) of the supplementary uplink format 2-3. After configuration, the UE decodes the corresponding block according to the starting position to obtain the indication information.

The field configuration types of DCI format 2_3 are divided into two types: typeA and typeB. For type A, the network device groups the serving cells, and provides the UE with a group index of a set of serving cells through the high-level parameter carrier set index (cc-SetIndex), and the high-level parameter is a component carrier index in a component carrier set (cc-IndexInOneCC-Set ) provides the UE with an index of each serving cell in this serving cell group. For the dynamic trigger mode, the network device configures an information block in the DCI format 2_3 for a UE through high-level signaling, and the fields in each information block include the triggered transmission power control of each serving cell in a set of serving cells ( transmission power control, TPC) command, can also include an SRS request field (as shown in Table 1), the SRS request field indicates that a group of usages in the triggered serving cell is configured as aperiodic SRS of 'antennaSwitching'. The composition of each block includes the SRS request field, which is 0 or 2 bits, and the TPC command (TPC command) 1, TPC command 2,..., TPC command N, where each TPC command is 2 bits, and N is the serving cell The number of serving cells included in the group, the i-th TPC command is applied to the i-th serving cell in the upper layer parameter cc-IndexInOneCC-Set. Alternatively, the composition of each block includes not including the SRS request field, and only includes TPC command 1, TPC command 2,..., TPC command N.

For typeB, the network device does not group serving cells. For the dynamic triggering method, the network device configures one or more information blocks in DCI format 2_3 for a UE through high-level signaling, each information block is applied to an uplink carrier, and the fields in each information block contain a triggered service The TPC command of the cell may also include an SRS request field (as shown in Table 1), and the SRS request field indicates the AP-SRS resource set triggered on the serving cell. The composition of each block includes the SRS request field, which is 0 or 2 bits, and the TPC command, which is 2 bits. Alternatively, the composition of each block does not include the SRS request field, but only the TPC command.

It should be noted that the reference signals involved in the embodiments of the present application may include, but are not limited to, a channel state information reference signal (CSI-RS), a synchronous signal broadcast channel block (synchronous signal/PBCH block, SSB), sounding reference signal (sounding reference signal, SRS), etc. Among them, a tracking reference signal (tracking reference signal, TRS) is also a type of CSI-RS.

Alternatively, the reference signal involved in the embodiments of the present application may also be some kind of reference signal in a future mobile communication system, which is not limited in this application. The following example only takes the reference signal as an SRS as an example for description. The first communication device involved in the embodiments of the present application may be a terminal device or a chip in the terminal device. The following description will only take the first communication device as a terminal device, and the second communication device may be a network device or a chip in the network device. , the following description is only given by taking the second communication device as a network device as an example.

Based on this, in order to improve the flexibility of SRS scheduling, an embodiment of the present application provides a communication method, as shown in FIG. 3 , the method includes:

S301: The network device sends the first information and the first DCI to the first terminal device.

Exemplarily, the network device may first send the first information to the first terminal device, and then send the first DCI, or may send the first information and the first DCI together. Wherein, the first DCI may be obtained by performing blind detection in the public search area by the first terminal device.

The first DCI includes information blocks corresponding to at least one terminal device, and at least one terminal device includes the first terminal device. Exemplarily, the network device divides multiple terminal devices in the cell into M groups, and configures a unique Radio-Network temporary identifier (RNTI) for each group, for example, TPC-SRS-RNTI, There are S terminal devices in each group, and the corresponding numbers are {1,2,…,S}. Wherein, it should be noted that the number of terminal devices in each group may also be different. The above-mentioned at least one terminal device may be understood as a group of terminal devices in the M group. The network device configures a unique RNTI for the group of terminal devices. When the network device transmits the first DCI on the PDCCH channel, the first DCI is scrambled by the unique RNTI. All of the above at least one terminal device can obtain the first DCI through blind detection in the common search area.

Exemplarily, the format of the first DCI may be DCI format 2_3.

The first information is configured by the first higher layer configuration information. Exemplarily, the first higher layer configuration information here may be radio resource control (radio resource control, RRC) signaling or MAC CE signaling. The first information is used to determine the relevant information of the information block corresponding to the first terminal device in the first DCI, and whether the information block corresponding to the first terminal device includes the second information and the third information (it can also be said that the first information is used for Determine the second information and/or the third information included in the information block corresponding to the first terminal device; that is, if the first information indicates the second information or the third information, it is equivalent to indicating Since the second information and the third information are not included in the information block, if the first information does not indicate the second information or the third information, it is also equivalent to indicating that the information block does not include the second information or the third information. second information and third information; if the first information indicates the second information and the third information, it is equivalent to indicating that the information block includes the second information and the third information). A possible design of the first message will be described below. Therefore, the first terminal device can determine the relevant information of the information block corresponding to the first terminal device in the first DCI according to the first information, and determine whether the information block corresponding to the first terminal device includes the second information and the first terminal device according to the first information. The third information, or it can be said that the second information and/or the third information included in the information block corresponding to the first terminal device is determined according to the first information.

for example:

The first DCI includes at least one information block, and the information block corresponding to the first terminal device includes the second information and/or the third information. Exemplarily, the second information includes a set of fields, and the third information includes a set of fields.

The second information is used to determine the related information of the first reference signal, the third information is used to determine the related information of the second reference signal, the first reference signal is associated with the first configuration information, and the second reference signal is associated with the second configuration information association. The first configuration information is different from the second configuration information. The first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching. Optionally, the first configuration information includes parameters for carrier switching, the second configuration information does not include parameters for carrier switching, or the second configuration information includes parameters for non-carrier switching.

Exemplarily, the first configuration information includes parameters for carrier switching, and the second configuration information includes parameters for non-carrier switching. For example, the second configuration information includes a configuration parameter where usage is codebook, or a configuration parameter where usage is nonCodebook, or a configuration parameter where usage is beamManagement, or usage is a configuration parameter in antennaSwitching other than carrier switching. Therefore, compared with the current DCI format 2_3 that is only applied to the carrier switching scenario, the DCI format 2_3 can only implement triggering for the SRS resource set whose usage is "antennaSwitching", and the method provided by the embodiment of the present application can realize that the DCI format 2_3 is used for other SRS resource sets. The triggering of the SRS resource set of usage (for example, codebook, or nonCodebook, or beamManagement), and the triggering of the SRS resource set whose usage is "antennaSwitching" in the non-carrier switching scenario, therefore, it is possible to simultaneously trigger multiple UEs to send multiple SRSs . It can be understood that, the above method can also implement that one UE sends one SRS, or one UE sends multiple SRSs.

In some embodiments, when the format of the first DCI is DCI format 2_3, and the field configuration type of DCI format 2_3 may be typeA, the second information may include an SRS request field, and/or a TPC command number (TPC command number) 1, TPC command number 2,...,TPC command number N, where N is the number of serving cells included in the serving cell group, and the ith TPC command is applied to the ith service in the high-level parameter cc-IndexInOneCC-Set community. When the format of the first DCI is DCI format 2_3, and the field configuration type of DCI format 2_3 may be typeB, the second information may include an SRS request field and/or a TPC command. Among them, the SRS request field occupies 2 bits, and each TPC command occupies 2 bits.

In some embodiments, the third information may include related information for requesting reference signals, related information for carrier indication, related information for bandwidth part indicator (BWP), related information for port indication at least one of information, related information for TPC command indication, and related information for time slot offset indication.

Exemplarily, the third information may include relevant information for requesting reference signals, relevant information for carrier indication, relevant information for partial bandwidth indication, relevant information for port indication, and relevant information for TPC command indication. information, related information for slot offset indication. Alternatively, the third information may include relevant information for carrier indication, relevant information for partial bandwidth indication, relevant information for port indication, relevant information for TPC command indication, relevant information for time slot offset indication information.

Wherein, the related information for requesting the reference signal is used for triggering the second reference signal resource set. The related information for requesting the reference signal may occupy 0 bits or 2 bits. Exemplarily, the related information for requesting reference signals may refer to the SRS request field.

The relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located. Exemplarily, the number of carriers indicated by the relevant information for carrier indication may be one or more. In some possible implementations, the relevant information for carrier indication may occupy 0 bits or 3 bits or 6 bits. Wherein, if the network device does not configure cross-carrier scheduling for the first terminal device, the relevant information used for carrier indication is 0 bits; if the network device configures cross-carrier scheduling for the first terminal device and instructs single-carrier transmission, the information used for carrier indication is 0 bits. The relevant information is 3 bits; if the network device configures cross-carrier scheduling for the first terminal device and instructs multi-carrier transmission, the relevant information for carrier indication is 6 bits.

The relevant information for indicating the partial bandwidth is used to indicate the partial bandwidth corresponding to the second reference signal. The relevant information used for the partial bandwidth indication may occupy 0 bits, 1 bit or 2 bits, and the specific size of the relevant information used for the partial bandwidth indication may be determined according to the number of BWPs configured by high-layer parameters.

The relevant information used for port indication is used to indicate the number of ports corresponding to the second reference signal or the port sequence number corresponding to the second reference signal, or the preset port group sequence number corresponding to the second reference signal, or the port corresponding to the second reference signal. number of switches.

Exemplarily, when the relevant information for port indication is 2 bits, the relevant information for port indication is used to indicate the number of ports of the second reference signal; when the relevant information for port indication is 1 bit, use The relevant information for the port indication is used to indicate the port number switching of the second reference signal; when the relevant information for the port indication is 4 bits, the relevant information for the port indication is used to indicate the port (group) of the second reference signal serial number. It should be understood that the bit numbers of 2, 1, and 4 are only examples, and other bit numbers are also possible.

In an example, when the relevant information for port indication indicates that the number of ports is M, M is a positive integer, and the first terminal device may determine that the number of ports used for sending the second reference signal is M, from all ports. M ports are selected to transmit the second reference signal. In an example, when the relevant information for port indication indicates a port serial number, the first terminal device may determine a port for sending the second reference signal according to the indicated port serial number, and send the second reference signal according to the determined port. In an example, the first terminal device or the network device may group the ports included in the first terminal device in advance according to high-level parameter configuration or a predefined rule, and determine the serial number of each port group. When the relevant information for port indication indicates the serial number of the port group, the first terminal device may determine the port group for sending the second reference signal according to the indicated serial number of the preset port group, and send the second reference signal according to the determined port group Signal. In an example, the network device can configure two sets of parameters for the first terminal device through high-level parameters, for example, including a first set of parameters and a second set of parameters, the two sets of parameters correspond to two types of port numbers respectively, and through the high-level parameters or The preset rule instructs the first terminal device to determine the port for sending the second reference signal according to one set of parameters (taking the first set of parameters as an example) by default. When the relevant information for port indication indicates port number switching, the first terminal device determines that port switching is required, and determines the port for sending the second reference signal according to another set of parameters (taking the second set of parameters as an example).

The related information used for the TPC command indication is used to indicate the power control information of the second reference signal. The relevant information for TPC command indication may occupy 2 bits.

The relevant information used for the slot offset indication is used to determine the time unit corresponding to the second reference signal. Exemplarily, the relevant information used for the time slot offset indication may occupy 2 bits or 3 bits, and the specific size of the relevant information used for the time slot offset indication may be determined according to high layer parameter configuration or predefined rules.

S302: The first terminal device determines the second information and/or the third information in the first DCI according to the first information.

The following describes the possible designs of the first information and the first DCI with specific examples, and describes the specific process for the first terminal device to determine the second information and/or the third information in the first DCI according to the first information in conjunction with the corresponding designs. . It should be understood that the following examples are not intended to limit the embodiments of the present application. It should be understood that the following start positions may refer to start bit positions.

Exemplarily, when the information block corresponding to the first communication device includes the second information and the third information, the first information is used to determine the starting position of the second information and the starting position of the third information, such as Example 1.

Exemplarily, the information block corresponding to the first communication apparatus includes the second information and/or the third information. The first information is used to determine at least one of the starting position of the information block corresponding to the first communication device, the first indication information and the second indication information, the length of the second information, the fourth indication information, and the fifth indication information. The first indication information is used to determine whether the information block corresponding to the first communication device includes the second information. The second indication information is used to determine whether the information block corresponding to the first communication device includes the third information. The fourth indication information is used to indicate the starting position of the third information. The fifth indication information is used to indicate the starting position of the second information. For example, Example 2 to Example 7.

Example 1: The first information indicates the starting position of at least one first information block in the first DCI and the starting position of at least one second information block. In the first DCI, the second information and the third information are located in different information blocks. In this case, the information block corresponding to the first terminal device includes at least one first information block and at least one second information block, the first information block includes second information, and the second information block includes third information. There is no overlapping information block between at least one first information block and at least one second information block.

It can be seen from the above that when the first information indicates the starting position of at least one first information block and does not indicate the starting position of at least one second information block, it indicates that the information block corresponding to the first terminal device includes the second information, and does not indicate the starting position of at least one second information block. The third information is included, and the first information indicates the starting position of the at least one first information block, and the first terminal device may determine the second information according to the starting position of the at least one first information block. When the first information indicates the starting position of at least one second information block and does not indicate the starting position of at least one first information block, it indicates that the information block corresponding to the first terminal device includes the third information and does not include the second information , and indicates the starting position of the at least one second information block, and the first terminal device can determine the third information according to the starting position of the at least one second information block. When the first information indicates the starting position of at least one first information block and the starting position of at least one second information block, it indicates that the information block corresponding to the first terminal device includes the second information and the third information, and indicates that The starting position of at least one first information block and the starting position of at least one second information block, the first terminal device can determine the second information according to the starting position of the at least one first information block, and according to the starting position of the at least one second information block The starting position of determines the third information.

Exemplarily, the network device indicates the starting position of the corresponding at least one first information block for the first terminal device through the high-level parameter startingBitOfFormat2-3, and indicates the corresponding at least one first information block for the first terminal device through the high-level parameter startingBitOfFormat2-3-r17. The starting position of the second information block. Here, the specific position of the first information block and the specific position of the second information block can be as shown in Figure 4, and can also be in other forms, for example, several first information blocks and several second information blocks are arranged at intervals.

Using the solution provided in the above example 1, the first DCI can trigger multiple UEs to send reference signals for different configurations at one time, which further saves the signaling overhead of the PDCCH. At the same time, the transmission scheduling and data scheduling of aperiodic reference signals are performed Decoupling makes the configuration of reference signals more independent and flexible, thereby increasing the flexibility of system scheduling. In addition, the first DCI can have good compatibility with the existing DCI format of the protocol, which can save signaling overhead, improve resource utilization, and reduce processing complexity of network equipment and terminal equipment.

Exemplarily, using the method provided by the embodiments of the present application can realize the triggering of the SRS resource set of other usages (for example, codebook, or nonCodebook, or beamManagement) of DCI format 2_3, and in the non-carrier switching scenario, the usage is "antennaSwitching". The triggering of the SRS resource set based on the SRS saves the signaling overhead of the PDCCH. At the same time, the aperiodic SRS transmission scheduling and data scheduling are decoupled, so that the SRS configuration is more independent and flexible, thereby increasing the flexibility of the system scheduling.

Example 2: The first information indicates the starting position, first indication information, and second indication information of the information block corresponding to the first terminal device, and the first indication information is used to determine whether the information block corresponding to the first terminal device includes the second information ; the second indication information is used to determine whether the information block corresponding to the first terminal device includes the third information. In the first DCI, the second information and the third information may be located in the same information block, and other information may or may not be inserted between the second information and the third information, that is, the second information and the third information may be is continuous or discontinuous, as shown in FIG. 5 , the second information and the third information are continuous. As shown in FIG. 5 , the first DCI includes information blocks corresponding to terminal equipment 1 to information blocks corresponding to terminal equipment N. The information block corresponding to the terminal device 1 is taken as an example, the information block corresponding to the terminal device 1 includes the second information and the third information, the second information and the third information are in the same information block, and the second information and the third information is continuous, and no other information is inserted into the second information and the third information.

It can be seen from the above that when the first indication information determines that the information block corresponding to the first terminal device includes the second information, and the second indication information determines that the information block corresponding to the first terminal device does not include the third information, it indicates that the information block corresponding to the first terminal device includes the second information. The information block includes the second information but does not include the third information, and the first information indicates the starting position of the information block corresponding to the first terminal device, and the first terminal device can The position is used as the starting position of the second information, and the length of the second information is determined according to the first preset rule and/or the second high-layer configuration information.

When it is determined according to the first indication information that the information block corresponding to the first terminal device does not include the second information, and it is determined according to the second indication information that the information block corresponding to the first terminal device includes the third information, it indicates that the information block corresponding to the first terminal device It does not include the second information, but includes the third information, and the first information indicates the starting position of the information block corresponding to the first terminal device. The first terminal device can use the starting position of the information block corresponding to the first terminal device as The starting position of the third information, and the length of the third information is determined according to the second preset rule and/or the third-layer configuration information.

When it is determined according to the first indication information that the information block corresponding to the first terminal device includes the second information, and it is determined according to the second indication information that the information block corresponding to the first terminal device includes the third information, it indicates that the information block corresponding to the first terminal device contains the second information. Including second information and third information. The first information indicates the starting position of the information block corresponding to the first terminal device, wherein, in some embodiments, the protocol may pre-specify or the network device may configure the sequence of the second information and the third information in advance, such as pre-determining the second information. The information comes first and the third information comes after. The first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information, and according to the first preset rule and/or the second high-level configuration The information determines the length of the second information, and at the same time obtains the starting position of the third information according to the starting position of the second information and the length of the second information, and determines the third information according to the second preset rule and/or the third high-level configuration information. length. In addition, it can also be agreed that the second information comes after the third information, and the specific implementation method is similar, which will not be repeated.

It should be understood that the first preset rule and the second preset rule in this application are only to distinguish the rules corresponding to the second information and the third information. In different implementations, the first preset rule or the second preset rule may be. For different rules, similarly, the second layer signaling and the third layer signaling are only for distinguishing the signaling corresponding to the second information and the third information. The first preset rule and the second preset rule are defined by the protocol. The second-layer configuration information and the third-layer configuration are information configured for network devices. Exemplarily, the protocol-defined second information may include a types of fields and values of possible lengths of each field, where the jth field has b _j types of possible lengths (ie, the first preset rule). The second high-level configuration information specifically indicates that the current second information includes the c types of fields in the a type of fields, and the specific value of the length of each of the c types of fields.

In some embodiments, if the information block corresponding to the first terminal device includes the second information and the third information, the second information and the third information may also be arranged in an alternate manner, and the protocol or the network device may configure the sub-section of the second information in advance. The arrangement order of the information and the sub-information in the third information. For example, the second information includes n1+n2 sub-information (also called fields), the third information includes n3+n4 sub-information, and the order of the second information and the third information is: n1 sub-information in the second information, There are n3 sub-information in the third information, n2 sub-information in the second information, and n4 sub-information in the third information.

Exemplarily, the first terminal device may determine which fields the second information specifically includes according to the first preset rule and the second high-level configuration information, and the length of each field determines the length of the second information. For example, for typeA, whether the second information includes an SRS request field is indicated by a high layer parameter, if it is included, the length of the SRS request field is 2 bits, and if it is not included, it is 0 bits. The high-layer parameter also indicates that the second information includes N TPC commands, where N is the number of uplink carriers indicated by the high-layer parameter, and the length of each TPC command field is 2 bits. Therefore, if the second information includes the SRS request field, the length of the second information is 2N+2 bits, otherwise it is 2N bits. For example, for typeB, if the information block includes the SRS request field and 1 TPC command, the length of the second information in the information block is 4 bits. If the information block includes only 1 TPC command, the second information in the information block is 4 bits long. The length is 2 bits.

Exemplarily, the first terminal device may determine which fields the third information specifically includes according to the second preset rule and the third high-layer configuration information, and the high-layer parameters determine the length of each field and the length of the third information. For example, for typeB, the third information indicated by the high layer parameter includes the SRS request field (2 bits), the carrier indication field (6 bits), the partial bandwidth indication field (2 bits), the port indication field (1 bit), the TPC command field ( 2 bits), slot offset indication field (2 bits). Then the length of the third information is 2+6+2+1+2+2=15 bits. It can be understood that the lengths of the foregoing fields are only examples, and are not limited to the embodiments of the present application.

Exemplarily, the network device indicates the starting position of the corresponding information block for the first terminal equipment through the high-level parameter startingBitOfFormat2-3, and indicates the starting position of the information block corresponding to the first terminal equipment through the high-level parameter startingBitOfFormat2-3-r17, and corresponding first indication information and second indication information.

Similar to Example 1, using the solution provided in Example 2, the first DCI can trigger multiple UEs to send reference signals for different configurations at one time, which further saves the signaling overhead of the PDCCH. The decoupling of data scheduling makes the configuration of reference signals more independent and flexible, thereby increasing the flexibility of system scheduling. In addition, the first DCI can have good compatibility with the existing DCI format of the protocol, which can save signaling overhead, improve resource utilization, and reduce processing complexity of network equipment and terminal equipment.

By indicating the starting position of the information block corresponding to the first terminal device, whether the second information is included, and whether the third information is included, the first terminal device can determine the second information and/or the third information and its starting bit position, Thereby reducing signaling overhead.

Example 3: The first information indicates the start position of the information block corresponding to the first terminal device, the length of the second information, and the third indication information, and the third indication information is used to determine whether the information block corresponding to the first terminal device includes the third information. In the first DCI, the second information and the third information may be located in the same information block, and no other information is inserted between the second information and the third information, that is, the second information and the third information are continuous, as shown in FIG. 5 . Show.

It can be seen from the above that when the length of the second information is not 0 and the third indication information determines that the information block corresponding to the first terminal device does not include the third information, it indicates that the information block corresponding to the first terminal device includes the second information, and does not. including the third information, and the first information indicates the starting position of the information block corresponding to the first terminal device, and the first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information .

When the length of the second information is 0 and the third indication information determines that the information block corresponding to the first terminal device includes the third information, it indicates that the information block corresponding to the first terminal device does not include the second information but includes the third information, and The first information indicates the starting position of the information block corresponding to the first terminal device, and the first terminal device may use the starting position of the information block corresponding to the first terminal device as the starting position of the third information.

When the length of the second information is not 0 and the third indication information determines that the information block corresponding to the first terminal device includes the third information, it indicates that the information block corresponding to the first terminal device includes the second information and the third information. The first information indicates the starting position of the information block corresponding to the first terminal device, wherein the protocol may pre-specify or the network device may configure the sequence of the second information and the third information in advance, for example, it is predetermined that the second information precedes the third information After that, the first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information, and obtain the starting position of the third information according to the starting position of the second information and the length of the second information. The starting position, the length of the third information is determined according to the second preset rule and/or the third-layer configuration information. In addition, it can also be agreed that the second information comes after the third information, and the specific implementation method is similar, which will not be repeated.

Wherein, for the second preset rule and the third high-level configuration information, reference may be made to the relevant descriptions in Example 2, and repeated descriptions will not be repeated.

Similar to Example 1, using the solution provided in Example 3, the first DCI can trigger multiple UEs to send reference signals for different configurations at one time, which further saves the signaling overhead of PDCCH. The decoupling of data scheduling makes the configuration of reference signals more independent and flexible, thereby increasing the flexibility of system scheduling. In addition, the first DCI can have good compatibility with the existing DCI format of the protocol, which can save signaling overhead, improve resource utilization, and reduce processing complexity of network equipment and terminal equipment.

By indicating the starting position of the information block corresponding to the first terminal device, whether the third information is included, and the length of the second information, the first terminal device can determine the second information and/or the third information, thereby reducing signaling overhead.

Example 4: The first information indicates the start position of the information block corresponding to the first terminal device and the length of the second information. The protocol may pre-stipulate the existence of the third information (it should be understood that the first information indicates the start position of the information block corresponding to the first terminal device and the length of the third information, and the protocol may pre-agreed that the second information exists, which is similar to this example 4) . . In the first DCI, the second information and the third information may be located in the same information block, and no other information is inserted between the second information and the third information, that is, the second information and the third information are continuous, as shown in FIG. 5 . Show.

It can be seen from the above that when the length of the second information is 0, it indicates that the information block corresponding to the first terminal device does not include the second information, but includes the third information, and the first information indicates the length of the information block corresponding to the first terminal device. For the starting position, the first terminal device may use the starting position of the information block corresponding to the first terminal device as the starting position of the third information.

When the length of the second information is not 0, it indicates that the information block corresponding to the first terminal device includes the second information and the third information. The first information indicates the starting position of the information block corresponding to the first terminal device, wherein the protocol may pre-specify or the network device may advance the sequence of the second information and the third information, for example, it is predetermined that the second information precedes the third information After that, the first terminal device can use the starting position of the information block corresponding to the first terminal device as the starting position of the second information, and obtain the starting position of the third information according to the starting position of the second information and the length of the second information. The starting position, the length of the third information is determined according to the second preset rule and/or the third-layer configuration information. In addition, it can also be agreed that the second information comes after the third information comes first, and the specific implementation method is similar, and will not be repeated here.

Similar to Example 1, using the solution provided in Example 4, the first DCI can trigger multiple UEs to send reference signals for different configurations at one time, which further saves the signaling overhead of PDCCH. The decoupling of data scheduling makes the configuration of reference signals more independent and flexible, thereby increasing the flexibility of system scheduling. In addition, the first DCI can have good compatibility with the existing DCI format of the protocol, which can save signaling overhead, improve resource utilization, and reduce processing complexity of network equipment and terminal equipment.

By indicating the start position of the information block corresponding to the first terminal device and the length of the second information, the first terminal device can determine the second information and/or the third information, thereby reducing signaling overhead.

Example 5: The first information indicates the start position and fourth indication information of the information block corresponding to the first terminal device. The fourth indication information indicates the starting position of the third information. In the first DCI, the second information and the third information may be located in the same information block, and no other information is inserted between the second information and the third information, that is, the second information and the third information are continuous, as shown in FIG. 5 . Show. Wherein, if the fourth indication information indicates that it is not configured, or the fourth indication information indicates that the configuration is a preset value, the information block corresponding to the first terminal device does not include the third information.

It can be seen from the above that when the starting position of the information block corresponding to the first terminal device is the same as the starting position of the third information indicated by the fourth indication information, it indicates that the information block corresponding to the first terminal device does not include the second information, Include third information. The first terminal device may determine the starting position of the third information, and determine the length of the third information according to the second preset rule and/or the third-layer configuration information. Wherein, for the second preset rule and the third high-level configuration information, reference may be made to the relevant descriptions in Example 2, and repeated descriptions will not be repeated.

When the starting position of the information block corresponding to the first terminal equipment is different from the starting position of the third information indicated by the fourth indication information, and the value of the fourth indication information is not the preset value, it indicates that the first terminal equipment corresponds to the starting position of the third information. The information block includes second information and third information. The first terminal device may use the start position of the information block corresponding to the first terminal device as the start position of the second information. At this time, the second information precedes the third information.

When the value of the fourth indication information is a preset value or when the network device is not configured with the fourth indication information, it indicates that the information block corresponding to the first terminal device includes the second information and does not include the third information. The first terminal device may use the starting position of the information block corresponding to the first terminal device as the starting position of the second information, and determine the length of the second information according to the first preset rule and/or the second high-level configuration information. Wherein, for the first preset rule and the second high-level configuration information, reference may be made to the relevant description in Example 2, and repeated descriptions will not be repeated.

Similar to Example 1, using the solution provided in Example 5, the first DCI can trigger multiple UEs to send reference signals for different configurations at one time, which further saves the signaling overhead of PDCCH. The decoupling of data scheduling makes the configuration of reference signals more independent and flexible, thereby increasing the flexibility of system scheduling. In addition, the first DCI can have good compatibility with the existing DCI format of the protocol, which can save signaling overhead, improve resource utilization, and reduce processing complexity of network equipment and terminal equipment.

By indicating the starting position of the information block corresponding to the first terminal device and the starting position of the third information, the first terminal device can determine the second information and/or the third information, thereby reducing signaling overhead.

Example 6: The first information indicates the starting position of the information block corresponding to the first terminal device, and the fifth indication information is used to indicate the starting position of the second information. In the first DCI, the second information and the third information may be located in the same information block, and no other information is inserted between the second information and the third information, that is, the second information and the third information are continuous, as shown in FIG. 5 . Show. Wherein, if the fifth indication information indicates that it is not configured, or the fifth indication information indicates that it is configured as a preset value, the information block corresponding to the first terminal device does not include the second information.

It can be seen from the above that when the starting position of the information block corresponding to the first terminal device is the same as the starting position of the second information indicated by the fifth indication information, it indicates that the information block corresponding to the first terminal device does not include the third information, Include second information. The first terminal device may determine the starting position of the second information, and determine the length of the second information according to the first preset rule and/or the second high-level configuration information. Wherein, for the first preset rule and the second high-level configuration information, reference may be made to the relevant description in Example 2, and repeated descriptions will not be repeated.

When the starting position of the information block corresponding to the first terminal equipment is different from the starting position of the second information indicated by the fifth indication information, and the value of the fifth indication information is not a preset value, it indicates that the first terminal equipment corresponds to the starting position of the second information. The information block includes second information and third information. The first terminal device may use the start position of the information block corresponding to the first terminal device as the start position of the third information. At this time, the third information precedes the second information.

When the value of the fifth indication information is a preset value or when the network device is not configured with the fifth indication information, it indicates that the information block corresponding to the first terminal device includes the third information and does not include the second information. The first terminal device may use the starting position of the information block corresponding to the first terminal device as the starting position of the third information, and determine the length of the third information according to the second preset rule and/or the third-layer configuration information. Wherein, for the second preset rule and the third high-level configuration information, reference may be made to the relevant descriptions in Example 2, and repeated descriptions will not be repeated.

Similar to Example 1, using the solution provided in Example 6, the first DCI can trigger multiple UEs to send reference signals for different configurations at one time, which further saves the signaling overhead of PDCCH. The decoupling of data scheduling makes the configuration of reference signals more independent and flexible, thereby increasing the flexibility of system scheduling. In addition, the first DCI can have good compatibility with the existing DCI format of the protocol, which can save signaling overhead, improve resource utilization, and reduce processing complexity of network equipment and terminal equipment.

By indicating the starting position of the information block corresponding to the first terminal device and the starting position of the second information, the first terminal device can determine the second information and/or the third information, thereby reducing signaling overhead.

Example 7: The first information indicates the starting position of the information block corresponding to the first terminal device and sixth indication information, where the sixth indication information is used to determine whether the information block corresponding to the first terminal device includes the second information. The agreement may pre-stipulate that the third information exists. In the first DCI, the second information and the third information may be located in the same information block, as shown in FIG. 5 .

It can be seen from the above that when the sixth indication information determines that the information block corresponding to the first terminal device does not include the second information, it indicates that the information block corresponding to the first terminal device includes the third information and does not include the second information. The first terminal device may use the starting position of the information block corresponding to the first terminal device as the starting position of the third information, and determine the length of the third information according to the second preset rule and/or the third-layer configuration information.

When the sixth indication information determines that the information block corresponding to the first terminal device includes the second information, it indicates that the information block corresponding to the first terminal device includes the second information and the third information. The protocol may pre-specify or the network device may advance the sequence of the second information and the third information. For example, it is predetermined that the second information comes before the third information, and the first terminal device can use the information block corresponding to the first terminal device. The starting position is used as the starting position of the second information, and the length of the second information is determined according to the first preset rule and/or the second high-layer configuration information. The first terminal device may obtain the starting position of the third information according to the starting position of the second information and the length of the second information, and determine the length of the third information according to the second preset rule and/or the third-layer configuration information. In addition, it can also be agreed that the second information comes after the third information, and the specific implementation method is similar, which will not be repeated.

For the first preset rule, the second high-level configuration information, the second preset rule, and the third high-level configuration information, reference may be made to the relevant descriptions in Example 2, and repeated descriptions will not be repeated.

In some embodiments, if the information block corresponding to the first terminal device includes the second information and the third information, the second information and the third information may also be arranged in an alternate manner, and the protocol or the network device may configure the sub-section of the second information in advance. The arrangement order of the information and the sub-information in the third information.

Similar to Example 1, using the solution provided in Example 7, the first DCI can trigger multiple UEs to send reference signals for different configurations at one time, which further saves the signaling overhead of PDCCH. The decoupling of data scheduling makes the configuration of reference signals more independent and flexible, thereby increasing the flexibility of system scheduling. In addition, the first DCI can have good compatibility with the existing DCI format of the protocol, which can save signaling overhead, improve resource utilization, and reduce processing complexity of network equipment and terminal equipment.

By indicating the starting position of the information block corresponding to the first terminal device and whether the second information is included, the first terminal device can determine the second information and/or the third information, thereby reducing signaling overhead.

It should be understood that, in this application, the second information and the third information may be continuous or may have an interval, and the interval length may be determined according to a preset rule and/or a network-side signaling configuration.

It should also be understood that, in this application, the first information indicates the Xth indication information, which can be understood as the first information indicates whether there is the Xth indication information, and it can also be understood that the first indication information indicates the content of the Xth indication information, the first The information includes the Xth indication information.

Further, after step 302, when the information block corresponding to the first terminal device includes the second information and the third information, the first reference signal is determined according to the second information, and the second reference signal is determined according to the third information; reference signal and a second reference signal.

Or, when the information block corresponding to the first terminal device includes the second information, the first reference signal is determined according to the second information, and the first reference signal is sent.

Alternatively, when the information block corresponding to the first terminal device includes the third information, the second reference signal is determined according to the third information; and the second reference signal is sent.

It can be understood that, in order to implement the functions in the foregoing embodiments, the network device and the terminal device include corresponding hardware structures and/or software modules for performing each function. Those skilled in the art should easily realize that the units and method steps of each example described in conjunction with the embodiments disclosed in the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software-driven hardware depends on the specific application scenarios and design constraints of the technical solution.

[Correction 05.11.2020 under Rule 91]
FIG. 6 and FIG. 7 are schematic structural diagrams of possible communication apparatuses provided by embodiments of the present application. These communication apparatuses can be used to implement the functions of the terminal equipment or the network equipment in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiment of the present application, the communication device may be the terminal device 130 or the terminal device 140 as shown in FIG. 1 , or may be the wireless access network device 120 as shown in FIG. 1 , or may be applied to the terminal device or a module (such as a chip) of a network device.

As shown in FIG. 6 , the communication apparatus 600 includes a processing unit 610 and a transceiver unit 620 . The communication apparatus 600 is configured to implement the functions of the terminal device or the network device in the method embodiment shown in FIG. 3 above.

When the communication apparatus 600 is used to implement the function of the terminal device in the method embodiment shown in FIG. 3 : the transceiver unit 620 is used to acquire the first information and the first downlink control information DCI; the first information is configured by the first high layer information configuration; the first DCI includes information blocks corresponding to at least one communication device, and the at least one communication device includes the first communication device; the first information is used to determine the first communication device in the first DCI. Relevant information of an information block corresponding to a communication device, and whether the information block corresponding to the first communication device includes second information and third information; the second information is used to determine the relevant information of the first reference signal, so The first reference signal is associated with the first configuration information; the third information is used to determine the related information of the second reference signal, and the second reference signal is associated with the second configuration information; the first configuration information is associated with the The second configuration information is different; the processing unit 610 is configured to determine the second information and/or the third information in the first DCI according to the first information.

When the communication apparatus 600 is used to implement the function of the network device in the method embodiment shown in FIG. 3: the processing unit 610 is used to generate the first DCI and the first information; the first information is configured by the first high-level configuration information; The first DCI includes information blocks corresponding to at least one communication device, and the at least one communication device includes the first communication device; the first information is used to determine the corresponding information of the first communication device in the first DCI relevant information of the information block, and whether the information block corresponding to the first communication device includes second information and third information; the second information is used to determine the relevant information of the first reference signal, the first reference The signal is associated with the first configuration information; the third information is used to determine the related information of the second reference signal, the second reference signal is associated with the second configuration information; the first configuration information and the second configuration information different; the transceiver unit 620 is configured to send the first information and the first DCI.

More detailed descriptions about the above-mentioned processing unit 610 and the transceiver unit 620 can be obtained directly by referring to the relevant descriptions in the method embodiment shown in FIG. 3 , and details are not repeated here.

As shown in FIG. 7 , the communication apparatus 700 includes a processor 710 and an interface circuit 720 . The processor 710 and the interface circuit 720 are coupled to each other. It can be understood that the interface circuit 720 can be a transceiver or an input-output interface. Optionally, the communication apparatus 700 may further include a memory 730 for storing instructions executed by the processor 710 or input data required by the processor 710 to execute the instructions or data generated after the processor 710 executes the instructions.

When the communication apparatus 700 is used to implement the method shown in FIG. 3 , the processor 710 is used to implement the functions of the above-mentioned processing unit 610 , and the interface circuit 720 is used to implement the functions of the above-mentioned transceiver unit 620 .

When the above communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiments. The terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device; or, the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or an antenna). antenna) to send information, the information is sent by the terminal equipment to the network equipment.

When the above communication device is a chip applied to a network device, the network device chip implements the functions of the network device in the above method embodiments. The network device chip receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or, the network device chip sends information to other modules in the network device (such as a radio frequency module or an antenna). antenna) to send information, the information is sent by the network equipment to the terminal equipment.

It can be understood that the processor in the embodiments of the present application may be a central processing unit (Central Processing Unit, CPU), and may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. A general-purpose processor may be a microprocessor or any conventional processor.

The method steps in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions. Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM) , PROM), Erasable Programmable Read-Only Memory (Erasable PROM, EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), registers, hard disks, removable hard disks, CD-ROMs or known in the art in any other form of storage medium. An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and storage medium may reside in an ASIC. Alternatively, the ASIC may be located in a network device or in an end device. Of course, the processor and the storage medium may also exist in the network device or the terminal device as discrete components.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are executed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment, or other programmable apparatus. The computer program or instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instructions may be downloaded from a website, computer, A server or data center transmits by wire or wireless to another website site, computer, server or data center. The computer-readable storage medium may be any available media that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The usable medium can be a magnetic medium, such as a floppy disk, a hard disk, and a magnetic tape; it can also be an optical medium, such as a digital video disc (DVD); it can also be a semiconductor medium, such as a solid state drive (solid state drive). , SSD).

In the various embodiments of the present application, if there is no special description or logical conflict, the terms and/or descriptions between different embodiments are consistent and can be referred to each other, and the technical features in different embodiments are based on their inherent Logical relationships can be combined to form new embodiments.

In this application, "at least one" means one or more, and "plurality" means two or more. "And/or", which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can mean: the existence of A alone, the existence of A and B at the same time, the existence of B alone, where A, B can be singular or plural. In the text description of this application, the character "/" generally indicates that the related objects are a kind of "or" relationship; in the formula of this application, the character "/" indicates that the related objects are a kind of "division" Relationship.

It can be understood that, the various numbers and numbers involved in the embodiments of the present application are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the sequence numbers of the above processes does not imply the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic.

Claims

A communication method, characterized in that the method comprises:

The first communication device acquires the first information and the first downlink control information DCI;

The first DCI includes information blocks respectively corresponding to at least one communication device, and the at least one communication device includes the first communication device;

The first information is used to determine the relevant information of the information block corresponding to the first communication device in the first DCI, and whether the information block corresponding to the first communication device includes second information and third information;

The second information is used to determine related information of the first reference signal, where the first reference signal is associated with the first configuration information;

The third information is used to determine related information of the second reference signal, the second reference signal is associated with the second configuration information;

the first configuration information is different from the second configuration information;

The second information and/or the third information is determined in the first DCI according to the first information.
The method of claim 1, wherein the information block corresponding to the first communication device includes the second information and the third information;

The method also includes:

determining related information of the first reference signal according to the second information; and

determining the relevant information of the second reference signal according to the third information;

The first reference signal and the second reference signal are transmitted.
The method of claim 1, wherein the information block corresponding to the first communication device includes the third information;

The method also includes:

determining the relevant information of the second reference signal according to the third information;

The second reference signal is transmitted.
The method according to any one of claims 1-3, wherein the third information includes related information for requesting reference signals, related information for carrier indication, related information for partial bandwidth indication, at least one of related information for port indication, related information for TPC command indication, and related information for time slot offset indication;

Wherein, the relevant information for requesting a reference signal is used to trigger the second reference signal resource set;

The relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located;

The relevant information for indicating the partial bandwidth is used to indicate at least one partial bandwidth where the second reference signal is located;

The relevant information for port indication is used to indicate the port number of the second reference signal, or the port sequence number of the second reference signal, or the preset port group sequence number of the second reference signal, or the The number of ports of the second reference signal is switched.
The method of any one of claims 1-4, wherein,

The information block corresponding to the first communication device includes second information and third information;

The first information is used to determine the starting position of the second information and the starting position of the third information.
The method of any one of claims 1-4, wherein,

The first information is used to determine the starting position, the first indication information and the second indication information of the information block corresponding to the first communication device;

The first indication information is used to determine whether the information block corresponding to the first communication device includes the second information;

The second indication information is used to determine whether the information block corresponding to the first communication device includes the third information.
The method of any one of claims 1-4, wherein,

The first information is used to determine the starting position of the information block corresponding to the first communication device, the length of the second information and the third indication information;

The third indication information is used to determine whether the information block corresponding to the first communication device includes the third information.
The method according to any one of claims 1-4, wherein the first information is used to determine a start position of an information block corresponding to the first communication device and a length of the second information.
The method according to any one of claims 1-4, wherein the first information is used to determine a start position and fourth indication information of an information block corresponding to the first communication device, and the fourth The indication information is used to indicate the starting position of the third information.
The method according to any one of claims 1-4, wherein the first information is used to determine a start position and fifth indication information of an information block corresponding to the first communication device, and the fifth The indication information is used to indicate the starting position of the second information.
The method according to any one of claims 1-4, wherein the first information is used to determine a start position of an information block corresponding to the first communication device and sixth indication information, and the sixth indication The information is used to determine whether the information block corresponding to the first communication device includes the second information.
The method according to any one of claims 1-11, wherein the first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching.
A communication method, characterized in that the method comprises:

The second communication device generates the first DCI and the first information;

The first DCI includes information blocks respectively corresponding to at least one communication device, and the at least one communication device includes the first communication device;

The first information is used to indicate the relevant information of the information block corresponding to the first communication device in the first DCI, and whether the information block corresponding to the first communication device includes second information and third information;

The second information is used to indicate related information of the first reference signal, and the first reference signal is associated with the first configuration information;

The third information is used to indicate related information of the second reference signal, and the second reference signal is associated with the second configuration information;

the first configuration information is different from the second configuration information;

The first information and the first DCI are sent.
The method of claim 13, wherein the information block corresponding to the first communication device includes the second information and the third information;

The method also includes:

The first reference signal and the second reference signal are received.
The method of claim 13, wherein the information block corresponding to the first communication device includes the third information;

The method also includes:

The second reference signal is received.
The method according to any one of claims 13-15, wherein the third information includes related information for requesting reference signals, related information for carrier indication, related information for partial bandwidth indication, at least one of related information for port indication, related information for TPC command indication, and related information for time slot offset indication;

Wherein, the relevant information for requesting a reference signal is used to trigger the second reference signal resource set;

The relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located;

The relevant information for indicating the partial bandwidth is used to indicate at least one partial bandwidth where the second reference signal is located;

The relevant information for port indication is used to indicate the port number of the second reference signal, or the port sequence number of the second reference signal, or the preset port group sequence number of the second reference signal, or the The number of ports of the second reference signal is switched.
The method of any one of claims 13-16, wherein,

The information block corresponding to the first communication device includes second information and third information;

The first information is used to indicate the starting position of the second information and the starting position of the third information.
The method of any one of claims 13-16, wherein,

The first information is used to indicate the start position, first indication information and second indication information of the information block corresponding to the first communication device;

The first indication information is used to indicate whether the information block corresponding to the first communication device includes the second information;

The second indication information is used to indicate whether the information block corresponding to the first communication device includes the third information.
The method of any one of claims 13-16, wherein,

The first information is used to indicate the start position of the information block corresponding to the first communication device, the length of the second information and the third indication information;

The third indication information is used to indicate whether the information block corresponding to the first communication device includes the third information.
The method according to any one of claims 13-16, wherein the first information is used to indicate a start position of an information block corresponding to the first communication device and a length of the second information.
The method according to any one of claims 13-16, wherein the first information is used to indicate a start position of an information block corresponding to the first communication device and fourth indication information, and the fourth The indication information is used to indicate the starting position of the third information.
The method according to any one of claims 13-16, wherein the first information is used to indicate a starting position of an information block corresponding to the first communication device and fifth indication information, and the fifth The indication information is used to indicate the starting position of the second information.
[Correction 05.11.2020 under Rule 91]
The method according to any one of claims 13-16, wherein the first information is used to indicate a start position of an information block corresponding to the first communication device and sixth indication information, and the sixth The indication information is used to indicate whether the information block corresponding to the first communication device includes the second information.
The method according to any one of claims 13-23, wherein the first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching.
A communication device, characterized in that the device comprises:

a transceiver unit, configured to acquire first information and first downlink control information DCI; the first DCI includes information blocks corresponding to at least one communication device, and the at least one communication device includes the device; the first information used to determine the relevant information of the information block corresponding to the device in the first DCI, and whether the information block corresponding to the device includes second information and third information; the second information is used to determine the first reference related information of the signal, the first reference signal is associated with the first configuration information; the third information is used to determine the related information of the second reference signal, the second reference signal is associated with the second configuration information; the first reference signal is associated with the second configuration information; a configuration information is different from the second configuration information;

A processing unit, configured to determine the second information and/or the third information in the first DCI according to the first information.
The apparatus of claim 25, wherein the information block corresponding to the apparatus includes the second information and the third information;

The processing unit is further configured to: determine relevant information of the first reference signal according to the second information; and determine relevant information of the second reference signal according to the third information;

The transceiver unit is further configured to send the first reference signal and the second reference signal.
The apparatus according to claim 25, wherein the information block corresponding to the apparatus includes the third information;

The processing unit is further configured to: determine relevant information of the second reference signal according to the third information;

The transceiver unit is further configured to send the second reference signal.
The apparatus according to any one of claims 25-27, wherein the third information includes related information for requesting reference signals, related information for carrier indication, related information for partial bandwidth indication, at least one of related information for port indication, related information for TPC command indication, and related information for time slot offset indication;

Wherein, the relevant information for requesting a reference signal is used to trigger the second reference signal resource set;

The relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located;

The relevant information for indicating the partial bandwidth is used to indicate at least one partial bandwidth where the second reference signal is located;

The relevant information for port indication is used to indicate the port number of the second reference signal, or the port sequence number of the second reference signal, or the preset port group sequence number of the second reference signal, or the The number of ports of the second reference signal is switched.
The device according to any one of claims 25-28, wherein the information block corresponding to the device includes second information and third information; the first information is used to determine the starting position and the starting position of the second information. the starting position of the third information.
The apparatus according to any one of claims 25 to 28, wherein the first information is used to determine a start position, first indication information and second indication information of an information block corresponding to the apparatus; the The first indication information is used to determine whether the information block corresponding to the device includes the second information; the second indication information is used to determine whether the information block corresponding to the device includes the third information.
The apparatus according to any one of claims 25 to 28, wherein the first information is used to determine a start position of an information block corresponding to the apparatus, a length of the second information, and third indication information ; the third indication information is used to determine whether the information block corresponding to the device includes the third information.
The apparatus according to any one of claims 25-28, wherein the first information is used to determine a start position of an information block corresponding to the apparatus and a length of the second information.
The device according to any one of claims 25 to 28, wherein the first information is used to determine a start position of an information block corresponding to the device and fourth indication information, and the fourth indication information is used to indicate the starting position of the third information.
The apparatus according to any one of claims 25 to 28, wherein the first information is used to determine a start position of an information block corresponding to the apparatus and fifth indication information, and the fifth indication information is used for determining to indicate the starting position of the second information.
The device according to any one of claims 25 to 28, wherein the first information is used to determine a starting position of an information block corresponding to the device and sixth indication information, and the sixth indication information is used for determining for determining whether the information block corresponding to the device includes the second information.
The apparatus according to any one of claims 25-35, wherein the first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching.
The apparatus according to any one of claims 25-36, wherein the transceiver unit is a transceiver, and the processing unit is a processor.
A communication device, characterized in that the device comprises:

a processing unit, configured to generate a first DCI and first information; the first DCI includes information blocks corresponding to at least one communication device respectively, and the at least one communication device includes the first communication device; the first information uses It is used to indicate the relevant information of the information block corresponding to the first communication device in the first DCI, and whether the information block corresponding to the first communication device includes the second information and the third information; the second information is used The first reference signal is associated with the first configuration information; the third information is used to indicate the relevant information of the second reference signal, and the second reference signal is associated with the second configuration information. association; the first configuration information is different from the second configuration information;

A transceiver unit, configured to send the first information and the first DCI.
The device of claim 38, wherein the information block corresponding to the first communication device includes the second information and the third information;

The transceiver unit is further configured to receive the first reference signal and the second reference signal.
The device of claim 38, wherein the information block corresponding to the first communication device includes the third information;

The transceiver unit is further configured to receive the second reference signal.
The apparatus according to any one of claims 38-40, wherein the third information includes related information for requesting reference signals, related information for carrier indication, related information for partial bandwidth indication, at least one of related information for port indication, related information for TPC command indication, and related information for time slot offset indication;

Wherein, the relevant information for requesting a reference signal is used to trigger the second reference signal resource set;

The relevant information for carrier indication is used to indicate at least one carrier where the second reference signal is located;

The relevant information for indicating the partial bandwidth is used to indicate at least one partial bandwidth where the second reference signal is located;

The relevant information for port indication is used to indicate the port number of the second reference signal, or the port sequence number of the second reference signal, or the preset port group sequence number of the second reference signal, or the The number of ports of the second reference signal is switched.
The device of any one of claims 38-41, wherein:

The information block corresponding to the first communication device includes second information and third information;

The first information is used to indicate the starting position of the second information and the starting position of the third information.
The device of any one of claims 38-41, wherein:

The first information is used to indicate the start position, first indication information and second indication information of the information block corresponding to the first communication device;

The first indication information is used to indicate whether the information block corresponding to the first communication device includes the second information;

The second indication information is used to indicate whether the information block corresponding to the first communication apparatus includes the third information.
The device of any one of claims 38-41, wherein:

The first information is used to indicate the start position of the information block corresponding to the first communication device, the length of the second information and the third indication information;

The third indication information is used to indicate whether the information block corresponding to the first communication device includes the third information.
The device according to any one of claims 38-41, wherein the first information is used to indicate a start position of an information block corresponding to the first communication device and a length of the second information.
The device according to any one of claims 38-41, wherein the first information is used to indicate a start position of an information block corresponding to the first communication device and fourth indication information, and the fourth The indication information is used to indicate the starting position of the third information.
The device according to any one of claims 38 to 41, wherein the first information is used to indicate a start position of an information block corresponding to the first communication device and fifth indication information, and the fifth The indication information is used to indicate the starting position of the second information.
[Correction 05.11.2020 under Rule 91]
The device according to any one of claims 38 to 41, wherein the first information is used to indicate a start position of an information block corresponding to the first communication device and sixth indication information, and the sixth The indication information is used to indicate whether the information block corresponding to the first communication device includes the second information.
The apparatus according to any one of claims 38-48, wherein the first configuration information is used for carrier switching, and the second configuration information is used for non-carrier switching.
The apparatus according to any one of claims 38-49, wherein the transceiver unit is a transceiver, and the processing unit is a processor.
A communication device, characterized by comprising means for performing the method of any one of claims 1 to 24.
A communication device, characterized in that it comprises a processor and an interface circuit, the interface circuit is used for outputting and/or outputting information, and the processor is used for executing a computer program, so that any one of claims 1 to 24 The described method is implemented.
The communication device of claim 52, wherein the communication device is a chip or a chip system.
A computer-readable storage medium, characterized in that, a computer program or instruction is stored in the storage medium, and when the computer program or instruction is executed by a communication device, any one of claims 1 to 24 is implemented. Methods.