WO2022082805A1 - Procédé et dispositif de comunication - Google Patents

Procédé et dispositif de comunication Download PDF

Info

Publication number
WO2022082805A1
WO2022082805A1 PCT/CN2020/123455 CN2020123455W WO2022082805A1 WO 2022082805 A1 WO2022082805 A1 WO 2022082805A1 CN 2020123455 W CN2020123455 W CN 2020123455W WO 2022082805 A1 WO2022082805 A1 WO 2022082805A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
indication
reference signal
communication device
block corresponding
Prior art date
Application number
PCT/CN2020/123455
Other languages
English (en)
Chinese (zh)
Inventor
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 (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2020/123455 priority Critical patent/WO2022082805A1/fr
Priority to CN202080106340.6A priority patent/CN116438875A/zh
Publication of WO2022082805A1 publication Critical patent/WO2022082805A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the field of wireless communication, and in particular, to a communication method and apparatus.
  • the network device configures the terminal device to send a sounding reference signal (SRS).
  • SRS sounding reference signal
  • the SRS can achieve different Features.
  • 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.
  • CSI codebook-based uplink channel state information
  • 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.
  • TDD time division duplexing
  • a user equipment 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 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.
  • codebook codebook
  • nonCodebook non-codebook
  • beam Management beam management
  • antenna switching antenna switching
  • DCI downlink control information
  • 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.
  • Embodiments of the present application provide a communication method and apparatus to solve the problem of inflexible scheduling of SRS.
  • 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.
  • 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.
  • 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.
  • the terminal device can send the first reference signal and the second reference signal according to the second information and the third information, respectively.
  • 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.
  • the terminal device can send the second reference signal according to the third information.
  • 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.
  • the third information can be a combination of multiple fields.
  • 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.
  • 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.
  • 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 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the first configuration information is used for carrier switching
  • the second configuration information is used for non-carrier switching
  • the first configuration information includes parameters for carrier switching
  • the second configuration information does not include parameters for carrier switching
  • the second configuration information includes parameters for non-carrier switching
  • 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.
  • the method can be applied to a network device or a chip/chip system on a network device.
  • 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.
  • the information block corresponding to the first communication apparatus includes the third information; and the second reference signal is received.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the first information is used to indicate the starting position of the information block corresponding to the first communication apparatus and fourth indication information
  • the fourth indication information is used to indicate the third information starting position
  • the first information is used to indicate a start position of an information block corresponding to the first communication device and fifth indication information
  • the fifth indication information is used to indicate the second information starting position
  • 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.
  • the first configuration information is used for carrier switching
  • the second configuration information is used for non-carrier switching
  • the first configuration information includes parameters for carrier switching
  • the second configuration information does not include parameters for carrier switching
  • the second configuration information includes parameters for non-carrier switching
  • 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.
  • a communication apparatus 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.
  • 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.
  • the communication device further includes a memory.
  • the communication apparatus is a terminal device or a network device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • the communication apparatus is a chip or a chip system configured in a terminal device or a network 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • FIG. 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.
  • 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.
  • vehicle to X, V2X, X can represent anything
  • 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.
  • for indicating may include direct indicating and indirect indicating.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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).
  • used to indicate and “used to determine” can be interchanged.
  • 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.
  • "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).
  • “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.
  • 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.
  • 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).
  • 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.
  • a, b and c can be single or multiple respectively.
  • FIG. 1 is a schematic structural diagram of a mobile communication system to which an embodiment of the present application is applied.
  • 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.
  • 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.
  • 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.
  • Period SRS periodic sounding reference signal
  • SP-SRS semi-persistent sounding reference signal
  • SP-SRS semi-persistent sounding reference signal
  • Aperiodic SRS, AP-SRS aperiodic sounding reference signal
  • 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.
  • resourceMapping high-level parameter resource mapping
  • OFDM orthogonal frequency division multiplexing
  • 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.
  • 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).
  • MAC control element MAC CE
  • the UE will repeatedly transmit the SRS periodically until the deactivation command is received.
  • aperiodic sounding reference signal aperiodic SRS, AP-SRS
  • DCI downlink control information
  • group common group common
  • 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.
  • SRS request field has 2 bits, and the specific definitions are shown in Table 1.
  • 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)".
  • 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.
  • TPC-SRS-RNTI transmission power control sounding reference signal radio network temporary identifier
  • TPC-SRS-RNTI transmission power control sounding reference signal radio network temporary identifier
  • TPC-SRS-RNTI transmission power control sounding reference signal radio network temporary identifier
  • 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.
  • the SRS request field includes 2 bits.
  • the value of the SRS request field can be as shown in Table 1.
  • 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.
  • 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.
  • 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
  • ⁇ SRS and ⁇ 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 ).
  • ⁇ 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 ⁇ offset, PDCCH is ⁇ offset configured by the high layer parameter ca-SlotOffset on the carrier that sends the PDCCH, ⁇ offset, PDCCH is the ⁇ offset configured by the high layer parameter ca-SlotOffset on the carrier sending the SRS.
  • the DCI containing the SRS request field that triggers the resource set can only be sent on the third "D".
  • the UE 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.
  • TDD time division duplexing
  • 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.
  • the network device needs the UE to send some uplink information on the carrier.
  • 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.
  • PDSCH Physical Downlink Shared Channel
  • the SRS cannot be sent on the carrier, so that the network device cannot obtain the corresponding channel estimate.
  • 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.
  • the target power parameter of the power control formula in the existing protocol TS38.213 needs to be set.
  • the UE 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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'.
  • TPC transmission power control
  • 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
  • TPC command is 2 bits
  • N is the serving cell
  • the composition of each block includes not including the SRS request field, and only includes TPC command 1, TPC command 2,..., TPC command N.
  • the network device does not group serving cells.
  • 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.
  • 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.
  • CSI-RS channel state information reference signal
  • SSB synchronous signal broadcast channel block
  • SRS sounding reference signal
  • TRS tracking reference signal
  • 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.
  • an embodiment of the present application provides a communication method, as shown in FIG. 3 , the method includes:
  • the network device sends the first information and the first DCI to the first terminal device.
  • 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.
  • 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.
  • 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.
  • the format of the first DCI may be DCI format 2_3.
  • the first information is configured by the first higher layer configuration information.
  • 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.
  • 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.
  • 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.
  • the second information includes a set of fields
  • 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
  • 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
  • the second configuration information is used for non-carrier switching.
  • the first configuration information includes parameters for carrier switching
  • the second configuration information does not include parameters for carrier switching
  • the second configuration information includes parameters for non-carrier switching.
  • the first configuration information includes parameters for carrier switching
  • the second configuration information includes parameters for non-carrier switching.
  • 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
  • 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 .
  • the above method can also implement that one UE sends one SRS, or one UE sends multiple SRSs.
  • 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.
  • TPC command number TPC command number 1
  • TPC command number 2_3 TPC command number N
  • N the number of serving cells included in the serving cell group
  • the ith TPC command is applied to the ith service in the high-level parameter cc-IndexInOneCC-Set community.
  • 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.
  • 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.
  • BWP bandwidth part indicator
  • 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.
  • 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.
  • 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.
  • 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.
  • the number of carriers indicated by the relevant information for carrier indication may be one or more.
  • the relevant information for carrier indication may occupy 0 bits or 3 bits or 6 bits.
  • 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.
  • the relevant information for port indication 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the second information and the third information are located in different information blocks.
  • 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
  • the second information block includes third information.
  • 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
  • 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.
  • 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
  • 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
  • the first terminal device can determine the third information according to the starting position of the 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.
  • 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 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.
  • 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 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the first indication information determines that the information block corresponding to the first terminal device includes the second information
  • the second indication information determines that the information block corresponding to the first terminal device does not include the third information
  • the information block includes the second information but does not include the third information
  • the first information indicates the starting position of the information block corresponding to the first terminal device
  • 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.
  • the first indication 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.
  • the first indication 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.
  • 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.
  • the first preset rule or the second preset rule may be.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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).
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 .
  • 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.
  • 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
  • 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.
  • 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.
  • 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.
  • 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.
  • the first terminal device can determine the second information and/or the third information, thereby reducing signaling overhead.
  • 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) .
  • 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.
  • 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.
  • the first terminal device 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
  • 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.
  • 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.
  • 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.
  • the first terminal device can determine the second information and/or the third information, thereby reducing signaling overhead.
  • 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.
  • 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.
  • the starting position of the information block corresponding to the first terminal device 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the starting position of the information block corresponding to the first terminal device 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the second information and the third information may be located in the same information block, as shown in FIG. 5 .
  • 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.
  • 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.
  • the second information comes after the third information, and the specific implementation method is similar, which will not be repeated.
  • the second high-level configuration information 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.
  • 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.
  • 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.
  • 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.
  • the first terminal device can determine the second information and/or the third information, thereby reducing signaling overhead.
  • 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.
  • 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.
  • 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.
  • the first reference signal is determined according to the second information, and the first reference signal is sent.
  • the second reference signal is determined according to the third information; and the second reference signal is sent.
  • the network device and the terminal device include corresponding hardware structures and/or software modules for performing each function.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the interface circuit 720 can be a transceiver or an input-output interface.
  • 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.
  • the processor 710 is used to implement the functions of the above-mentioned processing unit 610
  • the interface circuit 720 is used to implement the functions of the above-mentioned transceiver unit 620 .
  • the terminal device chip 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.
  • the network device chip 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.
  • 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.
  • RAM Random Access Memory
  • ROM read-only memory
  • PROM programmable read-only memory
  • PROM Erasable Programmable Read-Only Memory
  • EPROM Electrically Erasable Programmable Read-Only Memory
  • An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and storage medium may reside in an ASIC.
  • the ASIC may be located in a network device or in an end device.
  • the processor and the storage medium may also exist in the network device or the terminal device as discrete components.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • 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.
  • 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).
  • “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.
  • 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.
  • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif de communication, ledit procédé comprenant l'étape suivante : un premier dispositif de communication acquiert des premières informations et des premières informations de commande de liaison descendante (DCI). Les premières DCI comprennent un bloc d'informations correspondant respectivement à au moins un dispositif de communication. Le ou les dispositifs de communication comprennent le premier dispositif de communication. Les premières informations sont utilisées pour déterminer des informations relatives au bloc d'informations correspondant au premier dispositif de communication dans les premières DCI, ainsi que pour déterminer si le bloc d'informations correspondant au premier dispositif de communication comprend des deuxièmes informations ou des troisièmes informations. Les deuxièmes informations sont utilisées pour déterminer des informations relatives à un premier signal de référence, qui est associé à des premières informations de configuration. Les troisièmes informations sont utilisées pour déterminer des informations relatives à un deuxième signal de référence, qui est associé à des deuxièmes informations de configuration. Les premières informations de configuration sont différentes des deuxièmes informations de configuration. Le premier dispositif de communication détermine les deuxièmes informations et/ou les troisièmes informations dans les premières DCI en fonction des premières informations. La flexibilité de planification du signal de référence peut être améliorée à l'aide du procédé.
PCT/CN2020/123455 2020-10-23 2020-10-23 Procédé et dispositif de comunication WO2022082805A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2020/123455 WO2022082805A1 (fr) 2020-10-23 2020-10-23 Procédé et dispositif de comunication
CN202080106340.6A CN116438875A (zh) 2020-10-23 2020-10-23 一种通信方法及装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/123455 WO2022082805A1 (fr) 2020-10-23 2020-10-23 Procédé et dispositif de comunication

Publications (1)

Publication Number Publication Date
WO2022082805A1 true WO2022082805A1 (fr) 2022-04-28

Family

ID=81291232

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/123455 WO2022082805A1 (fr) 2020-10-23 2020-10-23 Procédé et dispositif de comunication

Country Status (2)

Country Link
CN (1) CN116438875A (fr)
WO (1) WO2022082805A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190273637A1 (en) * 2018-04-30 2019-09-05 Intel Corporation Channel state information reference signal (csi-rs) and sounding reference signal (srs) triggering
US20190356431A1 (en) * 2018-05-21 2019-11-21 Qualcomm Incorporated Choosing an srs resource set when multiple sets are configured
CN110855411A (zh) * 2019-11-07 2020-02-28 北京展讯高科通信技术有限公司 用户设备发送srs资源的方法及相关装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190273637A1 (en) * 2018-04-30 2019-09-05 Intel Corporation Channel state information reference signal (csi-rs) and sounding reference signal (srs) triggering
US20190356431A1 (en) * 2018-05-21 2019-11-21 Qualcomm Incorporated Choosing an srs resource set when multiple sets are configured
CN110855411A (zh) * 2019-11-07 2020-02-28 北京展讯高科通信技术有限公司 用户设备发送srs资源的方法及相关装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CATT: "Discussion on enhancements on SRS flexibility, coverage and capacity", 3GPP DRAFT; R1-2005688, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200817 - 20200828, 8 August 2020 (2020-08-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051917663 *
QUALCOMM INCORPORATED: "Enhancements on SRS flexibility, switching, coverage and capacity", 3GPP DRAFT; R1-2006795, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200817 - 20200828, 8 August 2020 (2020-08-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051918245 *
ZTE: "Enhancements on SRS flexibility, coverage and capacity", 3GPP DRAFT; R1-2006963, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. eMeeting; 20200817 - 20200828, 11 August 2020 (2020-08-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051918735 *

Also Published As

Publication number Publication date
CN116438875A (zh) 2023-07-14

Similar Documents

Publication Publication Date Title
US20220217694A1 (en) Method and apparatus for transmitting and receiving pdcch in wireless communication system
US11570781B2 (en) Method and apparatus for receiving downlink signal in wireless communication system
US11882556B2 (en) Transmission of physical uplink channels and signals for new radio beamformed system
WO2022028374A1 (fr) Procédé et appareil de répétition de pusch dans une procédure d'accès aléatoire
EP3874644B1 (fr) Signalisation de rétroaction pour une liaison latérale
US12022387B2 (en) Method and apparatus for transmitting and receiving terminal support information in wireless communication system
US11943036B2 (en) Method and device for transmitting or receiving signal on basis of space parameter in wireless communication system
US20230063450A1 (en) Positioning Capabilities of Reduced Capability New Radio Devices
US11910349B2 (en) Physical layer signaling by devices for requesting positioning-resources
WO2018228537A1 (fr) Procédé et appareil d'envoi et de réception d'informations
WO2022027308A1 (fr) Autorisations configurées améliorées
JP2023512807A (ja) 無線通信において、低減した能力のデバイスをサポートする方法及び装置
EP4278474A1 (fr) Améliorations apportées à un rapport de groupe de faisceaux dans des scénarios multi-trp
US20240235776A1 (en) User equipment and base station performing transmission and reception operations
US20220217758A1 (en) Devices and methods for cross-slot scheduling adaption
WO2022147735A1 (fr) Procédé et appareil de détermination d'une puissance d'émission
WO2020259083A1 (fr) Procédés, dispositif terminal et nœud de réseau destinés à une transmission de données de liaison montante
CN114451017A (zh) 一种激活和释放非动态调度传输的方法及装置
US11910350B2 (en) Physical layer signaling by base stations for provisioning positioning-resources
WO2022077352A1 (fr) Technologies pour réception fiable de canal physique de données dans des communications sans fil
WO2022082805A1 (fr) Procédé et dispositif de comunication
WO2024208299A1 (fr) Procédé de communication et appareil de communication
WO2023011372A1 (fr) Procédé et appareil de transmission de données
WO2021227071A1 (fr) Procédé et dispositif de détermination d'intervalle de garde, et support d'informations
WO2023066202A1 (fr) Procédé et appareil de mappage de ressources pour signal de référence, et terminal et dispositif de réseau

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20958387

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20958387

Country of ref document: EP

Kind code of ref document: A1