CN110034853A - Method for transmitting signals, relevant device and system - Google Patents

Method for transmitting signals, relevant device and system Download PDF

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Publication number
CN110034853A
CN110034853A CN201810033821.3A CN201810033821A CN110034853A CN 110034853 A CN110034853 A CN 110034853A CN 201810033821 A CN201810033821 A CN 201810033821A CN 110034853 A CN110034853 A CN 110034853A
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CN
China
Prior art keywords
tci state
terminal device
pdsch
qcl
network equipment
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Granted
Application number
CN201810033821.3A
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Chinese (zh)
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CN110034853B (en
Inventor
张荻
刘鹍鹏
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201810033821.3A priority Critical patent/CN110034853B/en
Priority to PCT/CN2019/071493 priority patent/WO2019137509A1/en
Publication of CN110034853A publication Critical patent/CN110034853A/en
Application granted granted Critical
Publication of CN110034853B publication Critical patent/CN110034853B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

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

Abstract

A kind of information transferring method, relevant device and system, this method comprises: solicited message is reconfigured to network equipment transmission link at the n moment in terminal device；Terminal device is in the first time period after the n moment according to the first QCL infomation detection PDSCH；First QCL information indicates that the first reference signal and the second reference signal meet QCL relationship；Terminal device in the second time period after the n moment according to the QCL infomation detection PDSCH of the first TCI state instruction, wherein the reconfiguration message that the first TCI state is sent from the network equipment.At the time of the initial time of second time period is terminal device reception reconfiguration message or later.Above scheme can realize that terminal device reliably detects PDSCH after the link failure and before the QCL information that detection PDSCH is explicitly indicated in the network equipment again.

Description

Method for transmitting signals, relevant device and system
Technical field
This application involves wireless communication technology field more particularly to a kind of method for transmitting signals, relevant device and system.
Background technique
With the appearance of intelligent terminal especially video traffic, current frequency spectrum resource has been difficult to meet user to capacity The explosive growth of demand.High-frequency band with bigger available bandwidth especially millimeter wave frequency band, has become the next generation The candidate frequency range of communication system.However, high-frequency band will lead to bigger unlike the working frequency range of the systems such as existing LTE Path loss, the influence of the especially factors such as atmosphere, vegetation further exacerbates the loss of radio transmission.
To overcome above-mentioned biggish propagation loss, a kind of signal transfer mechanisms based on beamforming technique are used, with By biggish antenna gain come the above-mentioned loss in thermal compensation signal communication process.Wherein, the signal of wave beam forming may include wide Broadcast channel, synchronization signal and the specific reference signal of cell etc..When signal, which is based on beamforming technique, to be transmitted, one Denier user moves, in fact it could happen that and the direction of the corresponding shaped-beam of transmission signal no longer matches the user location after movement, To receive the problem of signal frequently interrupts.For the shaped-beam variation in tracking signals transmission, one kind is assigned based on wave beam The channel quality measurement and result of shape technology, which report, to be introduced into.UE selects it by measuring to multiple wave beams that base station is sent Preferably N number of wave beam, and preferably N number of wave beam metrical information is reported to base station.By wave beam training process, base station obtain and The preferably N number of wave beam of UE communication is to BPL.Base station can be carried out data transmission during subsequent and UE communication using this N number of BPL.
But blocked due to existing in communication process, the diffracting power under high frequency channel is poor, leads to the wave of current service Beam is blocked, and signal can not continue to transmit.In order to prevent in the case where wave beam occur and being blocked, communication is needed by unexpected middle section It introduces corresponding mechanism to detect beam quality, and the fast quick-recovery link in the case where stopping.In link event After barrier occurs and before link-recovery, how terminal detects Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) it is the current technical issues that need to address.
Summary of the invention
This application provides a kind of method for transmitting signals, relevant device and system, may be implemented after the link failure and Before the network equipment is explicitly indicated again using which reception wave beam and detects PDSCH, terminal device is reliably detected PDSCH。
In a first aspect, being applied to terminal side, this method can include: terminal this application provides a kind of method for transmitting signals Solicited message is reconfigured to network equipment transmission link at the n moment in equipment.Terminal device basis in the first time period after the n moment First QCL infomation detection PDSCH.Terminal device receives the reconfiguration message that the network equipment is sent, and wherein reconfiguration message includes one Or multiple transmission configurations indicate TCI state.Terminal device is in the second time period after the n moment according to the first TCI state instruction QCL infomation detection PDSCH, wherein the first TCI state come from reconfiguration message.
Second aspect, this application provides a kind of method for transmitting signals, are applied to network equipment side, this method can include: The link reconfiguration request that network equipment receiving terminal apparatus is sent at the n moment.The network equipment is in the first time period after the n moment PDSCH is sent according to the first QCL information.The network equipment sends reconfiguration message to terminal device, and wherein reconfiguration message includes one Or multiple transmission configurations indicate TCI state.The network equipment is in the second time period after the n moment according to the first TCI state instruction QCL information send PDSCH, wherein the first TCI state come from reconfiguration message.
With reference to first aspect and second aspect, the first QCL information indicate that the first reference signal and the second reference signal meet QCL relationship, wherein the first reference signal is the demodulated reference signal DMRS of PDSCH, and the second reference signal includes that link reconfiguration is asked Seek the downlink reference signal of information association.At the time of the finish time of first time period is that terminal device receives reconfiguration message；The At the time of the initial time of two periods is terminal device reception reconfiguration message or later.
With reference to first aspect and second aspect, in some optional embodiments, second time period included the first sub- period； Wherein reconfiguration message includes being configured by the first RRC signaling for detecting the M TCI state of PDSCH；M is greater than or equal to 1 Positive integer.
Specifically, the network equipment can be sent within the first sub- period according to the QCL information of the 2nd TCI state instruction PDSCH；2nd TCI state comes from M PDSCH TCI state；First TCI state includes the 2nd TCI state.
Specifically, terminal device can be within the first sub- period according to the QCL infomation detection of the 2nd TCI state instruction PDSCH；2nd TCI state comes from M PDSCH TCI state；First TCI state includes the 2nd TCI state.
With reference to first aspect and second aspect, in some optional embodiments, second time period included the second sub- period； Reconfiguration message includes being configured by the second RRC signaling for detecting the K TCI state of PDCCH, and K is being greater than or equal to 1 just Integer.
Specifically, the network equipment can be sent within the second sub- period according to the QCL information of the 3rd TCI state instruction PDSCH；3rd TCI state is from the K TCI state for detecting PDCCH；First TCI state includes the 3rd TCI state.
Specifically, terminal device can be within the second sub- period according to the QCL infomation detection of the 3rd TCI state instruction PDSCH；3rd TCI state is from the K TCI state for detecting PDCCH；First TCI state includes the 3rd TCI state.
With reference to first aspect and second aspect, in some optional embodiments, second time period includes the third sub- period； Reconfiguration message includes by the first MAC-CE signal deployment for detecting the X TCI state of PDCCH, and X is positive integer, X >=1.
Specifically, the network equipment can be sent within the third sub- period according to the QCL information of the 4th TCI state instruction PDSCH；4th TCI state is from the X TCI state for detecting PDCCH；First TCI state includes the 4th TCI state.
Specifically, terminal device can be within the third sub- period according to the QCL infomation detection of the 4th TCI state instruction PDSCH；4th TCI state is from the X TCI state for detecting PDCCH；First TCI state includes the 4th TCI state.
With reference to first aspect and second aspect, in some optional embodiments, second time period included the 4th sub- period, Reconfiguration message includes by the 2nd MAC-CE signal deployment for detecting the Y TCI state of PDSCH, and Y is positive integer, Y >=1.
Specifically, the network equipment can be sent within the 4th sub- period according to the QCL information of the 5th TCI state instruction PDSCH；5th TCI state is from the Y TCI state for detecting PDSCH；First TCI state includes the 5th TCI state.
Specifically, terminal device is within the 4th sub- period according to the QCL infomation detection PDSCH of the 5th TCI state instruction； 5th TCI state is from the Y TCI state for detecting PDSCH；First TCI state includes the 5th TCI state.
With reference to first aspect and second aspect, in some optional embodiments, the network equipment passes through the first CORESET and dispatches The reconfiguration message of the 2nd CORESET that is sent to terminal device of resource or the running time-frequency resource position of new CORESET or QCL letter Breath；The reconfiguration message of 2nd CORESET is that the QCL information of reconfiguration message or new CORESET are reconfiguration message.Correspondingly, Terminal device receives the reconfiguration message or new of the 2nd CORESET of resource transmission of the network equipment by the first CORESET scheduling CORESET running time-frequency resource position or QCL information；The reconfiguration message of 2nd CORESET is reconfiguration message, or newly The QCL information of CORESET is reconfiguration message.
With reference to first aspect and second aspect, in some optional embodiments, the first TCI state includes following at least one :
The smallest control resource collection CORESET identifies corresponding TCI state, user's dedicated search space in reconfiguration message Associated the smallest CORESET identifies the associated CORESET of corresponding TCI state, public search space and identifies corresponding TCI shape State, the corresponding TCI state of the associated downlink reference signal of link reconfiguration request and the associated TCI state of synchronization signal block SSB, Dispatch the corresponding TCI state of CORESET of the PDSCH.
In second time period, when prolonging when deployed greater than pre-determined threshold, terminal device is according to the first TCI state instruction QCL infomation detection PDSCH；Prolong when deployed less than pre-determined threshold, and terminal device is not received by the smallest control resource set When closing the corresponding reconfiguration message of CORESET, terminal device is corresponding according to the CORESET where the PDCCH for dispatching the PDSCH The QCL infomation detection PDSCH of TCI state instruction.Optionally, prolong when deployed less than pre-determined threshold, and terminal device receives When the corresponding reconfiguration message of the smallest control resource collection CORESET, terminal device is according to the smallest control resource collection The QCL infomation detection PDSCH of the corresponding reconfiguration message instruction of CORESET.Optionally, pre-determined threshold is " Threshold- Sched-Offset”。
With reference to first aspect and second aspect, in some optional embodiments, the field of the TCI state of PDSCH is in downlink Exist in control information DCI signaling.
The third aspect, this application provides a kind of terminal device, which may include multiple functional modules or unit, It is any in the possible embodiment of method for transmitting signals or first aspect provided by first aspect for executing accordingly Method for transmitting signals provided by a kind of.
Fourth aspect, this application provides a kind of network equipment, which may include multiple functional modules or unit, It is any in the possible embodiment of method for transmitting signals or second aspect provided by second aspect for executing accordingly Method for transmitting signals provided by a kind of.
5th aspect, this application provides a kind of terminal devices, for executing the method for transmitting signals of first aspect description. Terminal device can include: memory and the processor coupled with memory, transceiver, in which: transceiver is used for logical with other Believe equipment (such as network equipment) communication.Memory is used to store the realization code of the method for transmitting signals of first aspect description, place Reason device executes method for transmitting signals provided by first aspect, Huo Zhe for executing the program code stored in memory On the one hand any one provided method for transmitting signals in possible embodiment.
6th aspect, this application provides a kind of network equipments, for executing the method for transmitting signals of second aspect description. Terminal device can include: memory and the processor coupled with memory, transceiver, in which: transceiver is used for logical with other Believe equipment (such as network equipment) communication.Memory is used to store the realization code of the method for transmitting signals of second aspect description, place Reason device executes method for transmitting signals provided by second aspect, Huo Zhe for executing the program code stored in memory Any one provided method for transmitting signals in the two possible embodiments of aspect.
7th aspect, provides a kind of communication system, communication system includes: terminal device and the network equipment.Wherein:
Terminal can be the above-mentioned third aspect or the 5th aspect describe terminal device, be also possible to above-mentioned fourth aspect or The network equipment that 6th aspect describes.
Eighth aspect provides a kind of computer readable storage medium, instruction is stored on readable storage medium storing program for executing, when its When being run on computer, so that computer executes the method for transmitting signals of above-mentioned first aspect description.
9th aspect, provide a kind of computer readable storage medium, instruction be stored on readable storage medium storing program for executing, when its When being run on computer, so that computer executes the method for transmitting signals of above-mentioned second aspect description.
Tenth aspect, provides a kind of computer program product comprising instruction, when run on a computer, so that Computer executes the method for transmitting signals of above-mentioned first aspect description.
Tenth on the one hand, and provide a kind of computer program product comprising instruction makes when run on a computer Obtain the method for transmitting signals that computer executes above-mentioned second aspect description.
12nd aspect, this application provides a kind of device, the devices can include: processor, and it is coupled in processor One or more interfaces.Wherein, processor can be used for calling method for transmitting signals provided by first aspect from memory, Or the realization program of any one provided method for transmitting signals in the possible embodiment of first aspect, and executing should The instruction that program includes.Interface can be used for the processing result of output processor.
13rd aspect, this application provides a kind of device, the devices can include: processor, and it is coupled in processor One or more interfaces.Wherein, processor can be used for calling method for transmitting signals provided by second aspect from memory, Or the realization program of any one provided method for transmitting signals in the possible embodiment of second aspect, and executing should The instruction that program includes.Interface can be used for the processing result of output processor.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application or in background technique below will be implemented the application Attached drawing needed in example or background technique is illustrated.
Fig. 1 is a kind of configuration diagram of wireless communication system provided by the present application；
Fig. 2A -2D be this application involves multiple beam forming network in several PDCCH transmitting scenes schematic diagram；
Fig. 3 be this application involves wave beam training process schematic diagram；
Fig. 4 is the flow diagram of link failure detection in the prior art and recovery；
Fig. 5 is the hardware structure schematic diagram for the terminal device that one embodiment of the application provides；
Fig. 6 is the hardware structure schematic diagram for the network equipment that one embodiment of the application provides；
Fig. 7 be this application involves control resource collection schematic diagram；
Fig. 8 A is a kind of flow diagram of method for transmitting signals provided by the present application；
Fig. 8 B is the schematic diagram of the material time section in the application；
Fig. 9 is a kind of schematic diagram using default QCL infomation detection PDSCH provided by the present application；
Figure 10 is another schematic diagram using default QCL infomation detection PDSCH provided by the present application；
Figure 11 is the schematic diagram of another use default QCL infomation detection PDSCH provided by the present application；
Figure 12 is the schematic diagram of another use default QCL infomation detection PDSCH provided by the present application；
Figure 13 is the schematic diagram of another use default QCL infomation detection PDSCH provided by the present application；
Figure 14 is the wireless communication system of the offer of the application, the functional block diagram of terminal and the network equipment.
Specific embodiment
The term that presently filed embodiment part uses is only used for explaining the specific embodiment of the application, rather than It is intended to limit the application.
Fig. 1 show this application involves wireless communication system.Wireless communication system can work in high-frequency band, no It is limited to long term evolution (Long Term Evolution, LTE) system, can also be the 5th third-generation mobile communication of the following evolution (the 5th Generation, 5G) system, (New Radio, NR) system of newly eating dishes without rice or wine, machine and machine communication (Machine To Machine, M2M) system etc..As shown in Figure 1, wireless communication system 100 can include: one or more network equipments 101, One or more terminals 103 and core net (not shown).Wherein:
The network equipment 101 can be base station, and base station can be used for being communicated with one or more terminals, can be used for Communicated with one or more base stations with part terminal function (such as macro base station and micro-base station, such as access point, between Communication).Base station can be TD SDMA (Time Division Synchronous Code Division Multiple Access, TD-SCDMA) base transceiver station (Base Transceiver Station, BTS) in system, It can be the evolved base station (Evolutional Node B, eNB) and 5G system, (NR) system of newly eating dishes without rice or wine in LTE system In base station.In addition, base station may be access point (Access Point, AP), transmitting-receiving point (Transmission Receive Point, TRP), center cell (Central Unit, CU) or other network entities, and may include the above network entity Some or all of functions in function.
Terminal 103 can be distributed in entire wireless communication system 100, can be static, be also possible to mobile.? In some embodiments of the present application, terminal 103 can be mobile device, mobile station (mobile station), mobile unit (mobile unit), M2M terminal, radio-cell, remote unit, terminal agent, mobile client etc..
In the application, wireless communication system 100 is multi-beam communication system.Wherein:
The network equipment 101 can be configured with large-scale aerial array, and control antenna array using beam forming technique Column form the wave beam being differently directed.In order to cover entire cell 107, the network equipment 101 needs the wave using multiple and different directions Beam.
For example, the network equipment 101 can be successively using the beam transmission wireless signal being differently directed during downlink (such as downlink reference signal (Reference Signal, RS) and/or downlink synchronous signal block (Synchronization Signal block, SS block)), which is referred to as beam scanning (Beam scanning).Meanwhile 103 pairs of terminal hairs Ejected wave beam measures, and determines the signal quality for the launching beam that terminal 103 can receive, which is referred to as wave beam measurement (Beam measurement)。
In future communication systems, terminal 103 can also be configured with aerial array, can also convert different wave beams into The transmitting-receiving of row signal.In other words, in wireless communication system 100, the network equipment 101 and terminal 103 may all use more waves Shu Jinhang communication.In downlink transmission process, the network equipment 101 can be such as Fig. 2A -2D to the mode that terminal 103 sends PDSCH It is shown:
Fig. 2A shows the network equipment 101, and using a transmission wave beam, (such as wave beam a) sends PDSCH, terminal to terminal 103 103 receive PDSCH using a reception wave beam (such as wave beam 1).In the scene shown in Fig. 2A, wave beam a and wave beam 1 are pairings 's.
Fig. 2 B shows the network equipment 101, and using a transmission wave beam, (such as wave beam a) sends PDSCH, terminal to terminal 103 103 receive PDSCH using multiple reception wave beams (such as wave beam 1,3).In the scene shown in Fig. 2 B, wave beam a and wave beam 1 are pairings , wave beam a and wave beam 3 are pairings.
Fig. 2 C shows the network equipment 101 and sends PDSCH to terminal 103 using multiple transmission wave beams (such as wave beam a, b), eventually End 103 receives PDSCH using multiple reception wave beams (such as wave beam 1, wave beam 3).In scene shown in fig. 2 C, wave beam a and wave beam 1 It is pairing, wave beam b and wave beam 3 are pairings.
Fig. 2 D shows terminal 103 and sends PDSCH, terminal to terminal 103 using multiple transmission wave beams (such as wave beam a, b) 103 receive PDSCH using same reception wave beam (such as wave beam 1).In the scene shown in Fig. 2 D, wave beam a and wave beam 1 are pairings , wave beam b and wave beam 1 are pairings.
Correspondingly, 4 kinds of PDSCH shown in Fig. 2A -2D send scene and are readily applicable to the network equipment 101 to terminal 103 The scene of PDSCH is sent, which is not described herein again.
For the ease of difference description, the transmitting-receiving wave beam of the network equipment can be known as base station beam, including Base Transmitter wave Beam (or base station transmission wave beam) and base station receive wave beam.One network equipment can have multiple Base Transmitter wave beams, and more A base station receives wave beam.The transmitting-receiving wave beam of terminal device is known as terminal beams, including terminal transmission wave beam (or terminal is sent Wave beam) and terminal reception wave beam.One terminal device can have multiple terminal transmission wave beams and multiple terminals receive wave beam.
In the application, each base station receives wave beam and is corresponding with a Base Transmitter wave beam.Here, base station receives wave beam It is corresponding with Base Transmitter wave beam to refer to: directive property having the same.Optionally, base station receives wave beam Base Transmitter corresponding with its Wave beam can be identical wave beam, and the two can share identical R-T unit.Optionally, base station receives wave beam base corresponding with its The corresponding antenna port of launching beam of standing, which can be, meets quasi- co-located (Quasi-collocation, QCL) relationship.
In the application, each terminal receives wave beam and is corresponding with a terminal transmission wave beam.Here, terminal receives wave beam It is corresponding with terminal transmission wave beam to refer to: directive property having the same.Optionally, terminal receives wave beam terminal transmission corresponding with its Wave beam can be identical wave beam, and the two can share identical R-T unit.Optionally, terminal receives wave beam end corresponding with its The end corresponding antenna port of launching beam, which can be, meets QCL relationship.
In the application, wave beam can be divided into the transmission wave beam of the network equipment and receive wave beam, the send wave with terminal device Beam and reception wave beam.The transmission wave beam of the network equipment sends lateral beam inborn nature information, base station received wave for describing the network equipment Beam receives lateral beam inborn nature information for describing the network equipment, and the transmission wave beam of terminal device is for describing terminal device sending side Wave beam inborn nature information, terminal receive wave beam and receive lateral beam inborn nature information for describing terminal device.Namely wave beam is for describing Wave beam inborn nature information.
In the application, wave beam can correspond to time resource or space resources.
Optionally, wave beam can also be with reference signal resource (for example, reference signal resource of wave beam forming) or wave beam Inborn nature information is corresponding.
Optionally, wave beam can also be corresponding with the associated information of the reference signal resource of the network equipment, wherein reference signal It can be channel state information reference signals (channel state information reference signal, CSI- RS), synchronization signal block (synchronization signal block, SS block), demodulated reference signal (demodulation reference signal, DMRS), phase tracking signal (phase tracking reference Signal, PTRS), tracking signal (tracking reference signal, TRS) etc., the associated information of reference signal resource It can be reference signal resource mark or QCL information etc..
Wherein, the transmitting-receiving established when before reference signal resource mark having corresponded to based on reference signal resource measurement Wave beam pair is indexed by the reference signal resource, terminal deducibility beam information.
In the application, TCI state can be for PDSCH configuration, be also possible to for PDCCH configure, be used to indicate QCL Information.If TCI state is configured for PDSCH, then QCL information refers to the reference signal of DMRS and the TCI state instruction of PDSCH Meet QCL relationship.If TCI state is configured for PDCCH, then QCL information refers to DMRS and the TCI state instruction of PDCCH Reference signal meets QCL relationship.If TCI state is configured for PDCCH, PDSCH uses the QCL information of the TCI state instruction PDSCH is detected, the DMRS for referring to PDSCH and the reference signal of the TCI state instruction meet QCL relationship or the DMRS of PDSCH Meet QCL relationship with the DMRS of PDSCH.The Base Transmitter wave beam and terminal of pairing shown in Fig. 2A -2D receive wave beam, and eventually Holding launching beam and base station to receive wave beam is to realize pairing by wave beam training process.
Illustrate the wave beam training process that application is related to below.As shown in figure 3, wave beam training process can include:
1) to (Beam pair link, BPL), (BPL includes a Base Transmitter wave beam and one to optimal N number of wave beam A terminal receives wave beam, alternatively, a BPL includes, a terminal transmission wave beam and a base station receive wave beam) selection.For Terminal device realizes the selection that wave beam is received to Base Transmitter wave beam and/or terminal based on the beam scanning of the network equipment, and, The network equipment realizes the selection that wave beam is received to terminal transmission wave beam and/or base station based on the beam scanning of terminal device.Such as Fig. 3 In (a) and (b) shown in.
2) update of launching beam, the launching beam can be Base Transmitter wave beam, or terminal transmission wave beam.When When the launching beam is Base Transmitter wave beam, as shown in (e) in Fig. 3, base station, which is sent by different launching beams to UE, joins Signal is examined, UE receives the reference signal that base station is sent by different launching beams by the same reception wave beam, and is based on The optimal launching beam that signal determines base station is received, the optimal launching beam of base station is then fed back into base station, in order to base station Launching beam is updated.When the launching beam is terminal transmission wave beam, as shown in (d) in Fig. 3, UE passes through different Launching beam sends reference signal to base station, and base station is received UE by the same reception wave beam and sent out by different launching beams The reference signal sent, and the optimal launching beam of UE is determined based on signal is received, then the optimal launching beam of UE is fed back to UE, in order to which UE is updated launching beam.It wherein, can above by the process that different launching beams sends reference signal With referred to as beam scanning, determine that the process of optimal launching beam is properly termed as wave beam matching based on signal is received.
3) update of wave beam is received, which can receive wave beam for base station, or terminal receives wave beam.When When the reception wave beam is that base station receives wave beam, as shown in (f) in Fig. 3, UE, which is sent by the same launching beam to base station, to join Signal is examined, base station receives the reference signal that UE is sent using the different wave beams that receives, and is then based on reception signal and determines base station Optimal reception wave beam is updated with the reception wave beam to base station.When the reception wave beam is the reception wave beam of UE, in Fig. 3 (c) shown in, base station sends reference signal to UE by the same launching beam, and UE is using different reception wave beam reception base station The reference signal of transmission is then based on and receives the optimal reception wave beam that signal determines UE, is updated with the reception wave beam to UE.
In the transmission of downlink signal, Base Transmitter wave beam and terminal receive wave beam and dynamic change, terminal may occur Equipment based on receive signal determine optimal reception wave beam may include it is multiple, in order to make terminal device determine the received wave of itself Multiple information for receiving wave beams can be fed back to the network equipment by beam, terminal device, and the network equipment can be by terminal device Wave beam instruction information is sent to receive wave beam to terminal device instruction terminal.When terminal device uses the wave beam forming of analog domain When, terminal device can determine that terminal receives wave beam based on the wave beam instruction information that the network equipment is sent come accurate, so as to To save the beam scanning time of terminal device, achieve the effect that power saving.
Communication link fails described herein refer to that the network equipment is sent out using a certain launching beam to terminal device When order and/or the data of delivering letters, since the launching beam is blocked, signal can not continue to transmit, and then communication is caused to be interrupted, Terminal device can not normally receive the scene of the signaling that the network equipment issues and/or data.
In order to detect and restore link failure, the network equipment needs to be configured to the reference letter of wave beam failure detection to terminal Number resource collection (Beam-Failure-Detection-RS-ResourceConfig) and for restoring terminal device and network Reference signal resource set (candidate beam RS list) (also referred to as candidate reference signals resource set of device link It closes).Wherein, the demodulation reference of the RS in beam failure detection RS set and downlink physical control channel PDCCH Signal meets QCL relationship or indicates (transmission configuration using identical transmission configuration with PDCCH Indicator, TCI) state, when part or all reference signals in the set channel quality information (such as RSPR, CQI, BLER, SINR, SNR etc.) be lower than predetermined threshold, then it is determined as communication link fails.Optionally, which can be with The thresholding of radio link failure OOS is identical.In this application, communication link fails can also be known as communication link mistake It loses, wave beam failure, wave beam failure, link failure, link failure, communication failure, communication failure etc..Herein, these concepts It is identical meaning.After communication link fails, terminal needs select channel quality information from candidate reference signals resource collection (such as RSRP, CQI) is higher than the reference signal resource of predetermined threshold, for restoring communication link.Optionally, which can By network equipments configuration.Here, Beam-Failure-Detection-RS-ResourceConfig is detected for terminal The channel quality of a certain launching beam of the network equipment, the launching beam are that the network equipment is used when being communicated with the terminal Wave beam.In the launching beam for judging the network equipment communication link occurs for candidate beam RS list for terminal After failure, for initiating the sets of reference signals of link reconfiguration.In this application, link reconfiguration can also be called recovery network and set Standby and terminal equipment in communication, link failure restore.In the concrete realization, for the reference signal resource set of wave beam failure detection And the reference signal resource set for restoring terminal device and network device link the two set titles can also have Other calls, the application are not especially limited this.In the application, link reconfiguration solicited message is properly termed as communication link event again Barrier (or be communication link failure, wave beam failure, wave beam failure, link failure, link failure, communication failure, communication failure Deng) recovery request information, solicited message is reconfigured.
Which the network equipment receive wave beam with instruction terminal by the QCL relationship of notice PDCCH/PDSCH and receive using PDCCH/PDSCH.Agree to use wireless heterogeneous networks (radio resource control, RRC) and/or matchmaker in standard at present Body access control (media access control, MAC) control unit (control element, CE)) semi-static signaling Notify the QCL relationship of PDCCH.PDSCH controls information (downlink control by RRC, MAC-CE, downlink physical Information, DCI) dynamic signaling notifies the QCL relationship (TCI table, also known as TCI list) of PDSCH, or passes through RRC and DCI signals the TCI state of PDSCH.
Fig. 4 shows link failure detection in the prior art and restores the method for link.As shown in figure 4, this method Include the following steps.
S101, terminal device carry out wave beam failure detection and carry out new wave beam identification.
The identification of new wave beam described herein refers to that after communication link fails occur, terminal is needed from candidate The reference signal resource that channel quality information (such as RSRP, CQI) is higher than predetermined threshold is selected in reference signal resource set, is used In recovery communication link.
Specifically, sending the wave beam and terminal device reception PDCCH of physical downlink control channel PDCCH for the network equipment Beam quality decline it is sufficiently low when communication failure occurs, namely the wave beam for sending and receiving PDCCH is to (Beam Pair Link, BPL) quality decline it is sufficiently low when communication failure occurs.Or the quality of the reference signal for wave beam failure detection When lower than predetermined threshold, it is believed that wave beam failure.The reason of communication link fails occur includes but is not limited to: depositing in communication process It is blocked in barrier, the diffracting power under high frequency channel is poor, and the wave beam of current service is caused to be blocked, and signal can not be after resuming It is defeated.Wherein, signal quality variation can be channel quality information (such as RSPR, CQI) lower than predetermined threshold.
After link failure occurs, terminal, which continues to test downlink reference signal that the network equipment issues, (or becomes candidate Sets of reference signals), and the signal quality of downlink reference signal is measured, to identify (or selecting) channel/signal High-quality downlink reference signal, identifying channel/signal quality, good downlink reference signal in other words has identified channel High-quality downlink wave beam.The downlink wave beam that channel quality is good refers to: the channel quality for the downlink reference signal that the base station is sent Information (such as RSPR, CQI) is higher than predetermined threshold, alternatively, terminal continuously measures the downlink reference signal that multiple base stations are sent Channel quality, wherein the channel quality of some downlink reference signal is best in this multiple downlink reference signal, then this The corresponding wave beam of the best downlink reference signal of a channel quality as identifies the wave beam that channel quality is good.Here, network Equipment can send downlink reference signal using multiple launching beams respectively, then terminal utilizes this multiple transmitting of the network equipment The downlink reference signal that wave beam is respectively sent measures the channel quality of this multiple launching beam, to select a channel quality Good downlink reference signal.In the application, the meaning of the wave beam and the good downlink reference signal of channel/signal quality that channel quality is good Think equivalent.
It should be understood that showing the Base Transmitter wave beam pair since the Base Transmitter beam quality selected is good It is also high-quality that the terminal answered receives wave beam.Likewise, also indicating that the terminal receives the corresponding terminal transmission wave beam of wave beam also quality It is good.
S102, terminal device are reconfigured to network equipment transmission link and request, and the link reconfiguration request of transmission is for initiating Link reconfiguration.
Wherein, link reconfiguration request is for initiating link reconfiguration in other words: being used to indicate link failure or communication is lost It loses.
Here, terminal device has identified high-quality downlink wave beam in step s101, wherein the downlink wave beam packet Include the launching beam of base station and/or the reception wave beam of terminal device.For there is a scene of wave beam reciprocity, terminal receive wave beam with Terminal transmission wave beam has corresponding relationship, and terminal device can receive wave beam using new identification terminal to send link reconfiguration at this time Request.For the scene of no wave beam reciprocity, terminal device, which needs to send link reconfiguration using other launching beams, is asked Seek information.
For there is the scene of wave beam reciprocity, each of terminal receives the transmitted wave that wave beam is corresponding with terminal Beam.Here, terminal receives that wave beam is corresponding with terminal transmission wave beam refers to: directive property having the same.Optionally, terminal received wave Beam terminal transmission wave beam corresponding with its can be identical wave beam, and the two can share identical R-T unit.Optionally, terminal Receiving wave beam corresponding antenna port of terminal transmission wave beam corresponding with its can be quasi- co-located (QCL).Optionally, quasi- It is co-located to refer to that at least one following parameter is identical or has determining corresponding relationship: incidence angle AoA (angle of arrival), Principal angle of incidence Dominant AoA, average angle of incidence, incidence angle power perspective compose (power angular spectrum (PAS) of AoA), angle of emergence AoD (angle of departure), the main angle of emergence, the average angle of emergence, the power angle of the angle of emergence Degree spectrum, terminal send beam forming, terminal receives beam forming, spatial channel correlation, base station sends beam forming, base station connects Receive beam forming, average channel gain, average channel time delay, delay spread delay spread, doppler spread Doppler Spread etc..
S103, the reconfiguration request of network equipment receiving terminal apparatus link, the network equipment are reconfigured to terminal transmission link and respond Information.
S104, terminal device receive the link that the network equipment is sent and response message are reconfigured, and terminal device carries out wave beam measurement.
Specifically, terminal device receives the downlink reference signal that the network equipment is sent using different launching beams, thus Measure the channel quality of different launching beams.The network equipment is also the dedicated CORESET (dedicate of terminal equipment configuration CORESET).Dedicate CORESET is used for the downlink communication after link failure, is mainly used for network equipment transmission link weight With response message.
S105, terminal device carry out beam quality and report, the beam quality that network equipment receiving terminal apparatus reports.
Terminal device measures the channel quality of multiple Base Transmitter wave beams, and therefrom selecting preferably Q, (Q is more than or equal to 1 Positive integer) a Base Transmitter wave beam carries out beam-channel quality uploading.That is, multiple downlinks that terminal device measurement base station is sent The channel quality of reference signal is therefrom selected preferably Q downlink reference signal and is reported.Here, channel quality preferably base Launching beam of standing refers to: the channel quality information (such as RSPR, CQI) of the Base Transmitter wave beam is higher than predetermined threshold, alternatively, eventually End equipment continuously measures the channel quality of multiple Base Transmitter wave beams, and wherein the channel quality of some Base Transmitter wave beam is this It is best in multiple Base Transmitter wave beams.
The network equipment can pass through wireless heterogeneous networks after receiving the beam-channel quality that terminal device reports (radio resource control, RRC) signaling, MACCE signaling or Downlink Control Information (downlink control Information, DCI) it is that the terminal device reconfigures the QCL information for detecting PDSCH.In other words, the network equipment Terminal device can be explicitly indicated again should receive wave beam to detect PDSCH using for which.
But it is explicitly indicated after the link failure and again in the network equipment and which receives wave beam using detects Before PDSCH, how PDSCH is detected for terminal device, the prior art does not consider that.The application mainly solves this problem, It is detailed in subsequent content.
The terminal 200 of some embodiments of the present application offer is shown with reference to Fig. 5, Fig. 5.As shown in figure 5, terminal 200 can It include: one or more terminal handlers 201, memory 202, communication interface 203, receiver 205, transmitter 206, coupler 207, antenna 208, terminal interface 202 and input/output module (including audio input output module 210, keyboard input module 211 and display 212 etc.).These components can be connected by bus 204 or other modes, and Fig. 5 by bus to be connected as Example.Wherein:
Communication interface 203 can be used for terminal 200 and other communication equipments, such as the network equipment, be communicated.Specifically, The network equipment can be the network equipment 300 shown in fig. 5.Specifically, communication interface 203 can be long term evolution (LTE) (4G) Communication interface is also possible to 5G or the following communication interface newly eated dishes without rice or wine.It is not limited to wireless communication interface, terminal 200 can be with Configured with wired communication interface 203, such as local area access networks (Local Access Network, LAN) interface.
Transmitter 206 can be used for carrying out transmitting processing to the signal that terminal handler 201 exports, such as pass through beam forming Realize directive sending.Receiver 205 can be used for carrying out reception processing to the received mobile communication signal of antenna 208, such as pass through Beam forming realizes directional reception.In some embodiments of the present application, 305/ receiver 306 of transmitter may include wave beam at Shape controller, for signal/reception signal is sent multiplied by weight vectors W1 ... ..., Wm, controlling the directional transmissions of signal/connect It receives.The base station beam switching referred in the application can be changed by the beam forming controller in 305/ receiver 306 of transmitter Become transmission signal/reception signal to realize multiplied by weight vectors.
In some embodiments of the present application, transmitter 206 and receiver 205 can regard a radio modem as. In terminal 200, the quantity of transmitter 206 and receiver 205 may each be one or more.Antenna 208 can be used for pass Electromagnetic energy in defeated line is converted into the electromagnetic wave in free space, or the electromagnetic wave in free space is converted into transmission line Electromagnetic energy.Coupler 207 is used to the mobile communication signal that antenna 208 receives being divided into multichannel, distributes to multiple receptions Device 205.
In addition to transmitter 206 shown in fig. 5 and receiver 205, terminal 200 may also include other communication components, such as GPS Module, bluetooth (Bluetooth) module, Wireless Fidelity (Wireless Fidelity, Wi-Fi) module etc..It is not limited to above-mentioned The wireless communication signals of statement, terminal 200 can also support other wireless communication signals, such as satellite-signal, short-wave signal etc. Deng.It is not limited to wirelessly communicate, terminal 200 can be configured with wired network interface (such as LAN interface) to support wire communication.
Input/output module can be used for realizing the interaction between terminal 200 and terminal/external environment, can mainly include Audio input output module 210, keyboard input module 211 and display 212 etc..Specifically, input/output module can also wrap It includes: camera, touch screen and sensor etc..Wherein, input/output module passes through terminal interface 209 and terminal handler 201 are communicated.
Memory 202 is coupled with terminal handler 201, for storing various software programs and/or multiple groups instruction.Specifically , memory 202 may include the memory of high random access, and may also comprise nonvolatile memory, such as one or Multiple disk storage equipments, flash memory device or other non-volatile solid-state memory devices.Memory 202 can store an operating system (following abbreviation systems), such as the embedded OSs such as ANDROID, IOS, WINDOWS or LINUX.Memory 202 is also It can store network communication program, which can be used for and one or more optional equipments, one or more terminals Equipment, one or more network equipments are communicated.Memory 202 can also store terminal interface program, the terminal interface journey Sequence can be shown by patterned operation interface by the content image of application program is true to nature, and pass through menu, dialogue The input controls such as frame and key receive terminal and operate to the control of application program.
In some embodiments of the present application, one or more embodiments that memory 202 can be used for storing the application are mentioned Realization program of the method for transmitting signals of confession in 200 side of terminal.The signal that one or more embodiments about the application provide The realization of transmission method, please refers to subsequent embodiment.
Terminal handler 201 can be used for reading and executing computer-readable instruction.Specifically, terminal handler 201 can be used In the method for transmitting signals that one or more embodiments of the program that calling is stored in memory 212, such as the application provide Realization program in 200 side of terminal, and execute the instruction that the program includes.
It should be understood that terminal 200 can be the terminal 103 in wireless communication system 100 shown in fig. 1, it is implementable to be Mobile device, mobile station (mobile station), mobile unit (mobile unit), radio-cell, remote unit, terminal Agency, mobile client etc..
It should be noted that terminal 200 shown in fig. 5 is only a kind of implementation of the embodiment of the present application, practical application In, terminal 200 can also include more or fewer components, here with no restriction.
The network equipment 300 of some embodiments of the present application offer is shown with reference to Fig. 6, Fig. 6.As shown in fig. 6, network is set Standby 300 can include: one or more network equipment processors 301, communication interface 303, transmitter 305, receive memory 302 Device 306, coupler 307 and antenna 308.These components can be connected by bus 304 or other formulas, and Fig. 6 by bus to be connected It is connected in example.Wherein:
Communication interface 303 can be used for the network equipment 300 and other communication equipments, such as terminal device or other networks are set It is standby, it is communicated.Specifically, terminal device can be terminal 200 shown in Fig. 4.Specifically, 303 communication interface of communication interface 203 can be long term evolution (LTE) (4G) communication interface, be also possible to 5G or the following communication interface newly eated dishes without rice or wine.It is not limited to Wireless communication interface, the network equipment 300 can be configured with wired communication interface 303 to support wire communication, such as one Backhaul link between the network equipment 300 and other network equipments 300 can be wire communication connection.
Transmitter 305 can be used for carrying out transmitting processing to the signal that network equipment processor 301 exports, such as pass through wave beam Directive sending is realized in forming.Receiver 306 can be used for carrying out reception processing to the received mobile communication signal of antenna 308, such as Directional reception is realized by beam forming.In some embodiments of the present application, 305/ receiver 306 of transmitter may include wave Beam shaping controller is used for transmission signal/reception signal multiplied by weight vectors W ' 1 ... ..., W ' m, controls the orientation hair of signal It penetrates/receives.The base station beam switching referred in the application can be controlled by the beam forming in 305/ receiver 306 of transmitter Device changes transmission signal/reception signal and realizes multiplied by weight vectors.
In some embodiments of the present application, transmitter 305 and receiver 306 can regard a radio modem as. In the network equipment 300, the quantity of transmitter 305 and receiver 306 may each be one or more.Antenna 308 can be used for Electromagnetic energy in transmission line is converted into the electromagnetic wave in free space, or the electromagnetic wave in free space is converted into transmitting Electromagnetic energy in line.Coupler 307 can be used for mobile communication number being divided into multichannel, distribute to multiple receivers 306.
Memory 302 is coupled with network equipment processor 301, for storing various software programs and/or multiple groups instruction.Tool Body, memory 302 may include the memory of high random access, and may also comprise nonvolatile memory, such as one Or multiple disk storage equipments, flash memory device or other non-volatile solid-state memory devices.Memory 302 can store operation system It unites (following abbreviation systems), such as the embedded OSs such as uCOS, VxWorks, RTLinux.Memory 302 can also store Network communication program, which can be used for and one or more optional equipments, one or more terminal devices, and one Or multiple network equipments are communicated.
Network equipment processor 301 can be used for carrying out wireless channel management, implementation calling and the foundation of communication link and tear open It removes, and provides cell switching control etc. for the terminal in this control zone.Specifically, network equipment processor 301 can include: pipe Reason/communication module (Administration Module/Communication Module, AM/CM) (for speech channel exchange and The center of information exchange), basic module (Basic Module, BM) (for complete call treatment, signaling processing, radio resource Management, the management of Radio Link and circuit maintenance function), code conversion and submultiplex unit (Transcoder and SubMultiplexer, TCSM) (for completing multiplexing and demultiplexing and code conversion function) etc..
In the embodiment of the present application, network equipment processor 301 can be used for reading and executing computer-readable instruction.Specifically , network equipment processor 301 can be used for calling the program being stored in memory 302, such as the one or more of the application The method for transmitting signals that embodiment provides and executes the instruction that the program includes in the realization program of 300 side of the network equipment.
It should be understood that the network equipment 300 can be the network equipment 101 in wireless communication system 100 shown in fig. 1, It is implementable be base transceiver station, wireless transceiver, a basic service set (BSS), an extended service set (ESS), NodeB, ENodeB, access point or TRP etc..
It should be noted that the network equipment 300 shown in fig. 6 is only a kind of implementation of the embodiment of the present application, it is practical In, the network equipment 300 can also include more or fewer components, here with no restriction.
Based on aforementioned wireless communication system 100, terminal 200 and the corresponding embodiment of the network equipment 300, the application Provide a kind of method for transmitting signals.
Firstly, introduce this application involves basic conception.
(1) quasi- co-located (QCL) information
QCL information may include the wave beam group index number of reference signal, the resource index number of reference signal, reference signal At least one of port numbers and the port group number of reference signal.Here, the wave beam group index number of reference signal is equivalent to join Examine a resource set call number of signal.The resource index number of reference signal can be one gathered based on multiple resource indexes number A relative indexing number.Such as, terminal has reported the absolute resource index number { 1,5,7,9 } of 4 reference signals, then based on the terminal Reported result, the Relative resource call number of reference signal are any one in { 0,1,2,3 }.Wherein, Relative resource call number 0 The resource index number 1 for the reference signal that terminal reports is corresponded to, Relative resource call number 1 has corresponded to the reference signal that terminal reports Resource index number 5, Relative resource call number 2 corresponded to the resource index number 7 for the reference signal that terminal reports, Relative resource rope Quotation marks 3 have corresponded to the resource index number 9 for the reference signal that terminal reports.
It is non-limiting as example, such as: the network equipment can indicate the demodulated reference signal of PDSCH or PDCCH One in multiple reference signal resources reported before (Demodulation Reference Signal, DMRS) and terminal Or it is multiple meet QCL relationship, e.g., which can be channel state information reference signals (Channel State Information Reference Signal,CSI-RS).Here, each CSI-RS resource reported index has corresponded to it The transmitting-receiving wave beam pair established when the preceding measurement based on the CSI-RS resource.It should be understood that meeting two reference signals of QCL relationship Or the reception beam information of channel is identical, to be indexed based on the reference signal resource, terminal is it can be inferred that receive PDSCH Or the reception wave beam of PDCCH.Wherein, above-mentioned related reference signal, can be CSI-RS or SS block, or It is other reference signals.The embodiment of the present application is to the concrete type of reference signal and without limitation.
Optionally, QCL information also may include some spatial character parameters, for example, the horizontal direction angle of departure (Azimuth Angle of Departure, AoD), vertically to the angle of departure (Zenith angle of Departure, ZoD), horizontal direction angle Degree extension (Azimuth angle spread of Departure, ASD), vertically to angle spread (Zenith angle Spread of Departure, ZSD), reach angle-dependent parameter, horizontal direction angle of arrival (Azimuth angle of Arrival, AoA), vertically to the angle of departure (Zenith angle of Arrival, abbreviation, ZoA), horizontal direction angle spread (Azimuth angle spread of Arrival, ASA) and vertically to angle spread (Zenith angle spread Of Arrival, ZSA) etc..These spatial character parameters describe the spy of the space channel between the antenna port between reference signal Property, facilitate terminal and receiving side wave beam forming is completed according to the QCL information or receives treatment process.
Optionally, QCL information can also include that space receives parameter (Spatial Rx parameter), in addition, QCL believes Breath further includes at least one of including but not limited to following parameter: delay extension, Doppler frequency shift, is averaged at doppler spread Gain and average retardation.Optionally, the spatial character parameter which includes may be the other parameters in addition to above-mentioned parameter, Here without limitation.And be to save the network equipment to indicate expense to the QCL of terminal, a kind of prior art of candidate is that network is set It is a based on channel status that the QCL instruction that preparation gives terminal limits the S (S is the positive integer more than or equal to 1) reported before terminal The transmitting-receiving wave beam of information reference signal (Channel State Information Reference Signal, CSI-RS) measurement One of centering meets QCL relationship.That is, modulation reference signals (the Demodulation Reference of current data Signal, DMRS) reception wave beam and terminal before one of the M that the reports transmitting-receiving wave beam centerings based on CSI-RS measurement connect It is identical for receiving wave beam.For example, terminal by the CSI-RS for multiple wave beams that the network equipment is sent measure selection its compared with Excellent is several, such as 4 wave beams, and preferably 4 wave beam metrical informations will be reported to the network equipment.Wave beam metrical information namely Wave beam status information (Beam Status Information, BSI), content mainly include reference signal resource index, wave beam Reference Signal Received Power (Reference Signal Received Power, RSRP).The network equipment is sent to terminal 3rd CSI-RS of transmitting-receiving wave beam centering of 4 reported before QCL instruction terminal based on CSI-RS measurement meets QCL relationship, So terminal receives the PDSCH that the network equipment issues using the corresponding wave beam that receives of the 3rd CSI-RS.
(2) resource collection (CORESET) is controlled
As shown in Figure 8 A, a CORESET is one piece of running time-frequency resource in control area.With 14 time-domain symbols in Fig. 8 A Preceding 4 time-domain symbols be control area, but can only define a part of resource in preceding 4 time-domain symbols is some Resource corresponding to CORESET.The corresponding one group of user (such as UE1, UE2, UE3 etc.) of one CORESET.On this CORESET The Physical Downlink Control Channel (PDCCH) of this group of user can be sent.Each user has a search empty on a CORESET Between (searchspace), the resource of the searchspace is less than or equal to the resource of CORESET.One user can correspond to multiple The associated Numerology of CORESET, these CORESET can be identical or different, and numerology here may include sub- load Wave spacing and cyclic prefix (cyclicprefix, CP) length.
Secondly, Fig. 8 A is the overall procedure of method for transmitting signals provided by the present application.The application is mainly discussed to be lost in link How terminal device detects PDSCH in two periods after losing.The two periods are sent out in terminal device to the network equipment After sending link reconfiguration request, and before the network equipment is explicitly indicated again using which reception wave beam and detects PDSCH.This Two periods include: first time period and first time period, wherein the finish time of first time period is terminal device reception When to reconfiguration message, when the initial time of second time period is that terminal device receives reconfiguration message.Implement to believe shown in Fig. 8 A The premise of number transmission method may include: that the field of the TCI state of PDSCH exists in Downlink Control Information DCI signaling, i.e., It include the QCL instructions field (TCI filed) of PDSCH in DCI signaling.Specifically, TCI- can be configured by RRC signaling PresentInDCI is equal to true or enable to realize the premise.As shown in Figure 8 A, signal transmission side provided by the present application Method can include:
S201, terminal device are reconfigured to network equipment transmission link at the n moment and request.Link reconfiguration request is for initiating chain Road reconfiguration.Here, at the time of the n moment sends link reconfiguration request.
With reference to Fig. 4 it is found that terminal receives wave beam using newly identified high-quality Base Transmitter wave beam and/or terminal to send out Give link reconfiguration request.Specific implementation can refer to Fig. 4 related content, and which is not described herein again.
S202, terminal device is in the first time period after the n moment according to the first QCL infomation detection PDSCH.
Here, the first QCL information can indicate that the first reference signal and the second reference signal meet QCL relationship.First reference Signal (DM-RS) is for demodulating PDSCH.
In the application, the second reference signal may include that associated downlink reference signal is requested in link reconfiguration.Link reconfiguration is asked The associated downlink reference signal of information is asked to refer to, terminal device identifies the downlink ginseng that channel quality is good in step S401 Examine signal.In this case, terminal device using which/which launching beam (such as wave beam 2) transmission link reconfiguration request Information, just using which/which launching beam (wave beam 2) corresponding reception wave beam (wave beam 2) receives PDSCH.
It is not limited to link reconfiguration and requests associated downlink reference signal, the second reference signal can also be accomplished by
1. the second reference signal may include terminal device after link failure and transmission link reconfiguration solicited message it Preceding received channel quality is higher than the reference signal of the first thresholding.Alternatively, the second reference signal may include terminal device in link Believe after failure and before transmission link reconfiguration solicited message in reference signal of the received channel quality higher than the first thresholding The top-quality reference signal in road.
Both of these case refers to, terminal device after link failure occurs for the downlink wave beam for detecting the network equipment and Before terminal device sends above-mentioned link reconfiguration solicited message, terminal device can identify new wave beam.That is, the network equipment can week Phase property send downlink reference signal, when terminal device detect network equipment present communications downlink wave beam occur link failure/ After failure, terminal device measures the channel quality for the downlink reference signal that the network equipment is sent, to identify channel quality height In the reference signal of the first thresholding.And then it is received using the reception wave beam for the reference signal for being higher than the first thresholding with the channel quality The PDSCH that the network equipment is sent, namely it is assumed that DMRS and reference signal in PDSCH meet QCL relationship.Here, meet QCL relationship refers to that terminal device receives parameter (such as wave beam 2) received channel quality using which space and is higher than the first thresholding Reference signal, just which space to receive parameter (wave beam 2) using to receive the PDSCH that the network equipment is sent.Alternatively, working as terminal After equipment detects that link failure/failure occurs for the downlink wave beam of network equipment present communications, terminal device measures the network equipment The channel quality of the downlink reference signal of transmission, to identify that channel quality is higher than channel matter in the reference signal of the first thresholding Measure best reference signal.And then the network equipment is received using the reception wave beam of the reference signal best with the channel quality and is sent PDSCH, namely it is assumed that DMRS in PDSCH and reference signal meet QCL relationship.Here, meet QCL relationship to refer to, Which terminal device receive the best reference signal of wave beam (such as wave beam 2) received channel quality using, is just connect using which Wave beam (wave beam 2) is received to receive the PDSCH of network equipment transmission.Here, the best downlink reference signal of channel quality refers to, eventually End equipment measures the reference signal that channel quality is best in multiple downlink reference signals.
2. the second reference signal may include that terminal device received channel quality in first time period is higher than the first thresholding Reference signal.Alternatively, the second reference signal may include that terminal device received channel quality in first time period is higher than the The best reference signal of channel quality in the reference signal of one thresholding.
Both of these case refers to that terminal device is sent in the first time period after solicited message is reconfigured in above-mentioned link, eventually End equipment can train new wave beam.That is, the network equipment receive terminal device transmission link reconfiguration solicited message after, Downlink reference signal can be sent, terminal device measures the channel quality for the downlink reference signal that the network equipment is sent, to identify Channel quality is higher than the reference signal of the first thresholding out.And then utilize the reference signal for being higher than the first thresholding with the channel quality It receives wave beam and receives the PDSCH that the network equipment is sent, namely it is assumed that DMRS and reference signal in PDSCH meet the pass QCL System.Here, meet QCL relationship to refer to, which terminal device receive wave beam (such as wave beam 2) received channel quality and be higher than using Which the reference signal of first thresholding just receive wave beam (wave beam 2) to receive the PDSCH of network equipment transmission using.Alternatively, eventually End equipment measures the channel quality for the downlink reference signal that the network equipment is sent, to identify that channel quality is higher than the first thresholding Reference signal in the best reference signal of channel quality.And then utilize the received wave of the reference signal best with the channel quality Beam receives the PDSCH that the network equipment is sent, namely it is assumed that DMRS and reference signal in PDSCH meet QCL relationship.This In, meet QCL relationship and refer to, which terminal device receive the best ginseng of wave beam (such as wave beam 2) received channel quality using Signal is examined, which just receives wave beam (wave beam 2) using to receive the PDSCH of network equipment transmission.Here, channel quality is best Downlink reference signal refers to that terminal device measures the reference signal that channel quality is best in multiple downlink reference signals.
S203, terminal device receive the reconfiguration message that the network equipment is sent.
In the application, which is the candidate shape of the TCI table that the network equipment reconfigures or referred to as TCI State, the TCItable include one or more TCI state.One TCI state instruction, one QCL information.
It should be understood that the TCI table of the previous CORESET before link failure becomes unreliable, therefore, The network equipment needs the wave beam measurement report reported according to terminal device to reconfigure TCI table.
It illustrates, it is assumed that M high-quality Base Transmitter wave beams are indicated in wave beam measurement report.So, network is set Standby to reconfigure M TCI state, this M TCI state corresponds to the associated descending reference letter of M high-quality Base Transmitter wave beams Number.Wherein, a TCI state be used to indicate terminal device using which/which receives the received TCI state of wave beam is corresponding Base Transmitter wave beam associated downlink reference signal, just using which/which reception wave beam receives PDSCH.
It should be understood that being reliable using the candidate QCL infomation detection PDSCH that the reconfiguration message indicates.
Optionally, which can be associated with previous CORESET, i.e. the network equipment is directed to Previous CORESET has reconfigured TCI table.Optionally, which can also be associated with new CORESET, previous CORESET are no longer available.Here, previous CORESET is that network is set before link failure The standby control resource collection for data dispatch for terminal device distribution.
S204, terminal device is in the second time period after the n moment according to the first TCI state-detection PDSCH, the first TCI State comes from above-mentioned reconfiguration message.
Here, the first TCI state refers to from reconfiguration message: the first TCI state is one or more of reconfiguration message TCI state.
Here, the QCL information of the first TCI state instruction can indicate that third reference signal and the 4th reference signal meet QCL Relationship.Third reference signal (DM-RS) is for demodulating PDSCH.4th reference signal, which can be terminal device and be sent to network, to be set The high-quality associated downlink reference signal of Base Transmitter wave beam indicated in standby wave beam measurement report.
Here, terminal device refers to according to the QCL infomation detection PDSCH of the first TCI state instruction, which terminal device uses It is a/which receives wave beam received 4th reference signal, just using which/which reception wave beam receives PDSCH.Namely It is to say, PDSCH and the 4th reference signal meet QCL relationship, alternatively, the DMRS of PDSCH and the 4th reference signal meet the pass QCL System.That is it uses space identical with the 4th reference signal to receive parameter (Spatial Rx parameter) to receive PDSCH。
Fig. 8 B illustrates first time period and second time period in the application.As shown in Figure 8 B, at the first time When the finish time of section can receive reconfiguration message for terminal device, the initial time of second time period can be terminal device When receiving reconfiguration message.Optionally, the initial time of second time period may be terminal device receive reconfiguration message it Afterwards.The TCI table (referred to as new TCI table) that reconfiguration message, that is, network equipment reconfigures.It is with reference to S203 it is found that new TCI table is the wave beam measurement report configuration that the network equipment is reported according to terminal device, is reliable.Therefore, from time Selecting the first TCI state of QCL information is reliably, and terminal device is also reliable according to the first TCI state-detection PDSCH.
In the application, reconfiguration message (new TCI table) can be PDSCH or the TCI of PDCCH configuration for different signalings State.
1. the reconfiguration message can be the TCI state that RRC signaling is PDSCH configuration.
2. the reconfiguration message can be the TCI state that RRC signaling is PDCCH configuration.
3. the reconfiguration message can be the TCI state that MAC CE signaling is PDSCH configuration.
4. the reconfiguration message can be the TCI state that MAC CE signaling is PDCCH configuration.
Above-mentioned 4 kinds of situations also indicate that the reconfiguration message can be issued in different moments by the network equipment, i.e., in different moments It is received by terminal.Here, which refers to transmission/reception signaling (such as the first RRC signaling/the second RRC signaling/the 2nd MAC CE signaling/the first MAC CE signaling) at the time of.In other words, a variety of situations can occur in the initial time of second time period.This In application, referred to as time section at the time of terminal device can also being received signaling (including the first DCI signaling).
Technical solution provided by the present application is described in detail below by multiple embodiments.
(1) embodiment one
In the present embodiment, at the time of the initial time of second time period is that terminal device receives the first RRC signaling.First At the time of the finish time of period is that terminal device receives the first RRC signaling.First RRC signaling is configured to detect M (M is more than or equal to 1 positive integer) a TCI state of PDSCH.In other words, part1, that is, first time period in Fig. 9.
In embodiment one, the QCL information that each part is used is specific as follows:
Part1: terminal device received before the first RRC signaling moment.Optionally, the initial time of part1 can be Terminal device either transmission link at the time of request is reconfigured to network equipment transmission link, 4 time slots after request is reconfigured (slot)。
In part1, the first QCL infomation detection PDSCH is can be used in terminal device.It specifically refers in Fig. 7 embodiment S202, which is not described herein again.
Part2: after at the time of terminal device receives the first RRC signaling, terminal device receive the second RRC signaling it Before.
Wherein, the first RRC signaling is configured to M (M is more than or equal to 1 positive integer) a TCI state of detection PDSCH. The reconfiguration message that the network equipment is sent to terminal device may include the M TCI state.
In part2, the QCL infomation detection PDSCH of the 2nd TCI state instruction is can be used in terminal device.2nd TCI state It is one or more TCI states in M TCI state.
Part3: after at the time of terminal device receives the second RRC signaling, terminal device receives the first MAC CE letter Before order.
Wherein, the second RRC signaling is configured to K (K is more than or equal to 1 positive integer) a TCI state of detection PDCCH. The reconfiguration message that the network equipment is sent to terminal device may include the K TCI state.
In part3, the QCL infomation detection PDSCH of the 3rd TCI state instruction is can be used in terminal device.3rd TCI state It is one or more TCI states in the K TCI state.
Part4 are as follows: after at the time of terminal device receives the first MAC CE signaling, terminal device receives the 2nd MAC Before CE signaling.
Wherein, the first MAC CE signal deployment is used to detect X (X is more than or equal to 1 positive integer) a TCI shape of PDCCH State.The reconfiguration message that the network equipment is sent to terminal device may include the X TCI state.
In part4, the QCL infomation detection PDSCH of the 4th TCI state instruction is can be used in terminal device.4th TCI state It is one or more TCI states in X TCI state.
Part5: after at the time of terminal device receives the 2nd MAC CE signaling, terminal device receives the first DCI letter Before order.
Wherein, the 2nd MAC CE signal deployment is used to detect Y (Y is more than or equal to 1 positive integer) a TCI shape of PDSCH State.The reconfiguration message that the network equipment is sent to terminal device may include the Y TCI state.
In part5, the QCL infomation detection PDSCH of the 5th TCI state instruction is can be used in terminal device.5th TCI state It is one or more TCI states in the Y TCI state.
After part5, terminal device is using identified QCL infomation detection PDSCH in the prior art.Such as, when deployed When prolonging less than predetermined threshold, terminal device uses TCI state of the QCL information based on default, and the TCI state of default, which corresponds to, is The TCI state of lowest CORESET ID configuration, when prolonging when deployed greater than predetermined threshold, terminal device is believed using the first DCI Enable the QCL infomation detection PDSCH of instruction.Wherein, the scheduling delay is dispatched for terminal device reception DCI to the DCI corresponding The time delay of PDSCH.
In the application, the first sub- period can will be known as using the period of the 2nd TCI state, can will use third The period of TCI state was known as the second sub- period, can will be known as the third sub- time using the period of the 4th TCI state Section can will be known as the 4th sub- period using the period of the 5th TCI state.
In embodiment one, second time period may include at least one of following: the first sub- period, the second sub- period, the Three sub- periods, the 4th sub- period.
Specifically, the first TCI state in the application includes: second when second time period included the first sub- period TCI state.When second time period included the second sub- period, the first TCI state in the application includes: the 3rd TCI state. When second time period includes third sub- period, the first TCI state in the application includes: the 4th TCI state.When second Between section when including four sub- periods, the first TCI state in the application includes: the 5th TCI state.
In embodiment one, can it postpone since the TCI state used in each part part 2 to terminal device Any one time section at the time of receiving the first DCI signaling or before the moment.
Optionally, the TCI state (i.e. the 2nd TCI state) used in part 2, which can postpone, receives to terminal device Any one time section at the time of one DCI signaling or before the moment.It should be understood that the first sub- period included Fig. 9 In part2.Postpone receives first to terminal device to the default TCI state (i.e. the 2nd TCI state) used in part 2 In the case where any one time section at the time of DCI signaling or before the moment, the first sub- period can also further be wrapped The part after the part2 in Fig. 9 is included, such as part3, part4, part5.
Optionally, the end time of the first sub- period may include it is following at least one: terminal device receives the 2nd RRC At the time of signaling, at the time of terminal device receives the first MAC CE signaling, terminal device receive the 2nd MAC CE signaling At the time of moment, terminal device receive the first DCI signaling.
Fig. 9 has been illustrative only of the timing of each signaling.It is not limited to shown in Fig. 9, signaling time-sequence can be different, example If the 2nd MAC CE signaling can be before the first MAC CE signaling, i.e. part5 can be before part4.
Optionally, as 2 ∧ N=M or M≤8, it may not be necessary to which the 2nd MACCE signaling, part 5 is not present at this time. Wherein, N is the sequence length of TCI field in DCI signaling, i.e. TCI field includes N number of b bit.Optionally, as K=1, It does not need the first MACCE to play drinking games, part4 is not present at this time.
It should be understood that when the initial time of second time period is the first RRC signaling, after notifying the first RRC signaling, Terminal device is one in the TCI state that reconfigures of PDSCH at the use of the first RRC signaling or the QCL of more TCI state instructions believes Breath detection PDSCH, at this time since the TCI state reconfigured is the TCI state for restoring newly to configure after link, the TCI newly configured For the QCL information of state instruction than the QCL information that first time period uses, performance is more preferable.
(2) embodiment two
In the present embodiment, at the time of the initial time of second time period is that terminal device receives the second RRC signaling.First At the time of the finish time of period is that terminal device receives the second RRC signaling.Second RRC signaling is configured to detect K (K is more than or equal to 1 positive integer) a TCI state of PDCCH.In other words, part1, that is, first time period in Figure 10.
In embodiment two, the QCL information that each part is used is specific as follows:
Part1: terminal device received before the second RRC signaling moment.Optionally, the initial time of part1 can be Terminal device either transmission link at the time of request is reconfigured to network equipment transmission link, 4 time slots after request is reconfigured (slot)。
In part1, the first QCL infomation detection PDSCH is can be used in terminal device.It specifically refers in Fig. 7 embodiment S202, which is not described herein again.
Part2: after at the time of terminal device receives the second RRC signaling, terminal device receives the first MAC CE letter Before order.
Wherein, the second RRC signaling is configured to K (K is more than or equal to 1 positive integer) a TCI state of detection PDCCH. The reconfiguration message that the network equipment is sent to terminal device may include the K TCI state.
In part2, the QCL infomation detection PDSCH of the 3rd TCI state instruction is can be used in terminal device.3rd TCI state It is one or more TCI states in the K TCI state.
Part3 are as follows: after at the time of terminal device receives the first MAC CE signaling, terminal device receives the 2nd MAC Before CE signaling.
Wherein, the first MAC CE signal deployment is used to detect X (X is more than or equal to 1 positive integer) a TCI shape of PDCCH State.The reconfiguration message that the network equipment is sent to terminal device may include the X TCI state.
In part3, the QCL infomation detection PDSCH of the 4th TCI state instruction is can be used in terminal device.4th TCI state It is one or more TCI states in X TCI state.
Part4: after at the time of terminal device receives the 2nd MAC CE signaling, terminal device receives the first DCI letter Before order.
Wherein, the 2nd MAC CE signal deployment is used to detect Y (Y is more than or equal to 1 positive integer) a TCI shape of PDSCH State.The reconfiguration message that the network equipment is sent to terminal device may include the Y TCI state.
In part4, the QCL infomation detection PDSCH of the 5th TCI state instruction is can be used in terminal device.5th TCI state It is one or more TCI states in the Y TCI state.
After par4, terminal device is using identified QCL infomation detection PDSCH in the prior art.Such as, prolong when deployed When less than predetermined threshold, terminal device uses TCI state of the QCL information based on default, and the TCI state of default, which corresponds to, is The TCI state of lowest CORESET ID configuration, when prolonging when deployed greater than predetermined threshold, terminal device is believed using the first DCI Enable the QCL infomation detection PDSCH of instruction.
In the application, the second sub- period can will be known as using the period of the 3rd TCI state, can will use the 4th The period of TCI state is known as the third sub- period, can will be known as the 4th sub- time using the period of the 5th TCI state breath Section.
In embodiment two, second time period may include at least one of following: the second sub- period, third sub- period, the Four sub- periods.
Specifically, the first TCI state in the application includes: third when second time period included the second sub- period TCI state.When second time period includes third sub- period, the first TCI state in the application includes: the 4th TCI state. When second time period included four sub- period, the first TCI state in the application includes: the 5th TCI state.
In embodiment two, can it postpone since the TCI state used in each part part 2 to terminal device Any one time section at the time of receiving the first DCI signaling or before the moment.
Optionally, the TCI state (i.e. the 3rd TCI state) used in part 2, which can postpone, receives to terminal device Any one time section at the time of one DCI signaling or before the moment.It should be understood that the second sub- period included Figure 10 In part2.The TCI state (i.e. the 3rd TCI state) used in part 2, which postpones, receives the first DCI letter to terminal device In the case where any one time section at the time of order or before the moment, the second sub- period can also further comprise Figure 10 In part2 after part, such as part3, part4.
Optionally, the end time of the second sub- period may include it is following at least one: terminal device receives the first MAC At the time of CE signaling, at the time of terminal device receives the 2nd MAC CE signaling, terminal device receive the first DCI signaling when It carves.
Figure 10 has been illustrative only of the timing of each signaling of carrying.It is not limited to shown in Figure 10, signaling time-sequence can be with Difference, such as the 2nd MAC CE signaling can be before the first MAC CE signalings, i.e. part4 can be before part3.
Optionally, as 2 ∧ N=M or M≤8, it may not be necessary to which the 2nd MAC CE signaling, part 4 is not deposited at this time ?.Wherein, N is the sequence length of TCI field in DCI signaling, i.e. TCI field includes N number of b bit.Optionally, work as K=1 When, the first MAC CE is not needed, part3 is not present at this time.
It should be understood that when the initial time of second time period is the second RRC signaling, after notifying the second RRC signaling, Terminal device is one in the TCI state that reconfigures of PDCCH at the use of the second RRC signaling or the QCL of more TCI state instructions believes Breath detection PDSCH newly matches at this time since the TCI state reconfigured is the TCI state newly configured after restoring link for PDCCH For the QCL information for the TCI state instruction set than the QCL information that first time period uses, performance is more preferable.In addition, when the 2nd RRC believes When the TCI state of configuration being enabled to be the subset of TCI state of the first RRC signaling configuration, due to the TCI shape of the second RRC signaling configuration The QCL range of information of state instruction is more accurate, and performance is more preferable.Further, since it is the TCI state for PDCCH configuration, robust Property is more preferable.
(3) embodiment three
In the present embodiment, at the time of the initial time of second time period is that terminal device receives the first MAC CE signaling. At the time of the finish time of first time period is that terminal device receives the first MAC CE signaling.First MAC CE signal deployment is used In X (X is more than or equal to 1 positive integer) a TCI state of detection PDCCH.In other words, when the part1 in Figure 11 i.e. first Between section.
In embodiment three, the QCL information that each part is used is specific as follows:
Part1: terminal device receives before the first MAC CE signalling instant.Optionally, the initial time of part1 can be with It is that terminal device is reconfigured at the time of request to network equipment transmission link or 4 time slots after request are reconfigured in transmission link (slot)。
In part1, the first QCL infomation detection PDSCH is can be used in terminal device.It specifically refers in Fig. 7 embodiment S202, which is not described herein again.
Part2: after at the time of terminal device receives the first MAC CE signaling, terminal device receives the 2nd MAC CE Before signaling.
Wherein, the first MAC CE signal deployment is used to detect X (X is more than or equal to 1 positive integer) a TCI shape of PDCCH State.The reconfiguration message that the network equipment is sent to terminal device may include the X TCI state.
In part2, the QCL infomation detection PDSCH of the 4th TCI state instruction is can be used in terminal device.4th TCI state It is one or more TCI states in X TCI state.
Part3: after at the time of terminal device receives the 2nd MAC CE signaling, terminal device receives the first DCI letter Before order.
Wherein, the 2nd MAC CE signal deployment is used to detect Y (Y is more than or equal to 1 positive integer) a TCI shape of PDSCH State.The reconfiguration message that the network equipment is sent to terminal device may include the Y TCI state.
In part3, the QCL infomation detection PDSCH of the 5th TCI state instruction is can be used in terminal device.5th TCI state It is one or more TCI states in the Y TCI state.
After part3, terminal device is using identified QCL infomation detection PDSCH in the prior art.Such as, when deployed When prolonging less than predetermined threshold, terminal device uses TCI state of the QCL information based on default, and the TCI state of default, which corresponds to, is The TCI state of lowest CORESET ID configuration, when prolonging when deployed greater than predetermined threshold, terminal device is believed using the first DCI Enable the QCL infomation detection PDSCH of instruction.
In the application, the third sub- period can will be known as using the period of the 4th TCI state, can will use the 5th The period of TCI state was known as the 4th sub- period.
In embodiment three, second time period may include at least one of following: third sub- period, the 4th sub- period.
Specifically, the first TCI state in the application includes: the 4th when second time period includes third sub- period TCI state.When second time period included four sub- period, the first TCI state in the application includes: the 5th TCI state.
In embodiment three, can it postpone since the default TCI state used in each part part 2 to terminal Any one time section at the time of equipment receives the first DCI signaling or before the moment.
Optionally, the default TCI state (i.e. the 4th TCI state) used in part 2, which can postpone to terminal device, to be received Any one time section at the time of to the first DCI signaling or before the moment.It should be understood that the third sub- period includes Part2 in Figure 11.Postpone to terminal device receives the default TCI state (i.e. the 4th TCI state) used in part 2 In the case where any one time section at the time of first DCI signaling or before the moment, the third sub- period can also be into one Step includes the part, such as part3 after the part2 in Figure 11.
Optionally, the end time of third sub- period may include it is following at least one: terminal device receives the 2nd MAC At the time of CE signaling, at the time of terminal device receives the first DCI signaling.
Figure 11 has been illustrative only of the timing of each signaling of carrying.It is not limited to shown in Figure 11, signaling time-sequence can be with Difference, such as the 2nd MAC CE signaling can be before the first MAC CE signalings, i.e. part3 can be before part2.
Optionally, as 2 ∧ N=M or M≤8, it may not be necessary to which the 2nd MAC CE signaling, part 3 is not deposited at this time ?.Wherein, N is the sequence length of TCI field in DCI signaling, i.e. TCI field includes N number of b bit.Optionally, work as K=1 When, the first MAC CE is not needed, part2 is not present at this time.
It should be understood that notifying the first MAC CE when the initial time of second time period is the first MAC CE signaling After signaling, terminal device uses one or the more TCI states that the first MAC CE signaling is in the TCI state that reconfigures of PDCCH The QCL infomation detection PDSCH of instruction is that PDCCH is newly configured after restoring link due to the TCI state reconfigured at this time TCI state, for the QCL information of the TCI state instruction newly configured than the QCL information that first time period uses, performance is more preferable.This Outside, the first MAC CE signaling has activated one or more of the TCI state of the second RRC signaling configuration, indicated by QCL letter Breath is for detecting PDCCH, and more acurrate, robustness is more preferable.
(4) example IV
In the present embodiment, at the time of the initial time of second time period is that terminal device receives the 2nd MAC CE signaling. At the time of the finish time of first time period is that terminal device receives the 2nd MAC CE signaling.2nd MAC CE signal deployment is used In Y (Y is more than or equal to 1 positive integer) a TCI state of detection PDSCH.In other words, when the part1 in Figure 12 i.e. first Between section.
In example IV, the QCL information that each part is used is specific as follows:
Part1: terminal device receives before the 2nd MAC CE signalling instant.Optionally, the initial time of part1 can be with At the time of being that request is reconfigured to network equipment transmission link in terminal device.
In part1, the first QCL infomation detection PDSCH is can be used in terminal device.It specifically refers in Fig. 7 embodiment S202, which is not described herein again.
Part2: after at the time of terminal device receives the 2nd MAC CE signaling, terminal device receives the first DCI letter Before order.
Wherein, the 2nd MAC CE signal deployment is used to detect Y (Y is more than or equal to 1 positive integer) a TCI shape of PDSCH State.The reconfiguration message that the network equipment is sent to terminal device may include the Y TCI state.
In part2, the QCL infomation detection PDSCH of the 5th TCI state instruction is can be used in terminal device.5th TCI state It is one or more TCI states in the Y TCI state.
After part2, terminal device is using identified QCL infomation detection PDSCH in the prior art.Such as, when deployed When prolonging less than predetermined threshold, terminal device uses TCI state of the QCL information based on default, and the TCI state of default, which corresponds to, is The TCI state of lowest CORESET ID configuration, when prolonging when deployed greater than predetermined threshold, terminal device is believed using the first DCI Enable the QCL infomation detection PDSCH of instruction.
In the application, the 4th sub- period can will be known as using the period of the 5th TCI state.4th sub- period was Part2 in Figure 12.At the time of the end time of 4th sub- period can receive the first DCI signaling for terminal device.
In example IV, second time period can include: the 4th sub- period.First TCI state can include: the 5th TCI shape State.
In example IV, the 2nd MAC CE signaling is properly termed as the 2nd MAC CE signaling, and the first DCI signaling is properly termed as One DCI signaling.
It should be understood that notifying the 2nd MAC CE when the initial time of second time period is the 2nd MAC CE signaling After signaling, terminal device uses one or the more TCI states that the 2nd MAC CE signaling is in the TCI state that reconfigures of PDSCH The QCL infomation detection PDSCH of instruction is that PDCCH is newly configured after restoring link due to the TCI state reconfigured at this time TCI state, for the QCL information of the TCI state instruction newly configured than the QCL information that first time period uses, performance is more preferable.This Outside, the 2nd MAC CE signaling has activated one or more of the TCI state of the first RRC signaling configuration, indicated by QCL letter Breath is the candidate information of detection PDSCH, more acurrate.
(5) embodiment five
In the present embodiment, at the time of the finish time of first time period is that terminal device receives the first DCI signaling.Namely It is to say, part1, that is, first time period in Figure 13.
In embodiment five, the QCL information that each part is used is specific as follows:
Part1: terminal device receives before the first DCI signalling instant.Optionally, the initial time of part1 can be At the time of request is reconfigured to network equipment transmission link in terminal device.
In part1, the first QCL infomation detection PDSCH is can be used in terminal device.It specifically refers in Fig. 7 embodiment S202, which is not described herein again.
After part1, terminal device is using identified QCL infomation detection PDSCH in the prior art.Such as, when deployed When prolonging less than predetermined threshold, terminal device uses TCI state of the QCL information based on default, and the TCI state of default, which corresponds to, is The TCI state of lowest CORESET ID configuration, when prolonging when deployed greater than predetermined threshold, terminal device is believed using the first DCI Enable the QCL infomation detection PDSCH of instruction.
As can be seen that embodiment five is not related to second time period.Before terminal device receives the first DCI signaling, all Using the first QCL infomation detection PDSCH.
In embodiment five, the 2nd MAC CE signaling is properly termed as the 2nd MAC CE signaling, and the first DCI signaling is properly termed as One DCI signaling.
Extension, in conjunction with above-mentioned multiple embodiments, the first TCI state may include at least one of following: in candidate QCL information The smallest control resource collection coreset identifies corresponding QCL information, user's dedicated search space correlation in candidate's QCL information The smallest coreset identify corresponding QCL information (using which without the scene of public beam, handle up more preferable), candidate (public beam is wider, and spreadability is more for the corresponding QCL information of the associated coreset mark of public search space in QCL information Well), the corresponding QCL information of associated reference signal, the corresponding QCL information (link of synchronization signal block SSB are requested in link reconfiguration Failure there is no, can using for and base station communication SSB), dispatch CORESET where the PDCCH of the PDSCH Or the corresponding QCL information of PDCCH.
The network equipment can be terminal equipment configuration one or more CORESET resource, and match for each CORESET resource Corresponding TCI state is set, TCI state is used to indicate QCL information.Furthermore the network equipment can also be terminal equipment configuration search space (search space), in currently available technology, a search space is associated with a CORESET.
The smallest control resource collection CORESET identifies corresponding QCL information and refers to, base station is the multiple of terminal configuration The corresponding TCI state of that the smallest CORESET of ID, the state are used to indicate the QCL information of the CORESET in CORESET, 2nd QCL information can be the QCL information.Since minimum CORESET ID is always existed so the QCL information can be used in UE Detect PDSCH.
It may include CSS (common search for multiple CORESET that the network equipment is terminal equipment configuration ) and USS (UE-specific search space) space.It had both been wrapped when in multiple CORESET that base station is terminal equipment configuration When to include CSS also include USS, then the 2nd QCL information can be the corresponding QCL information of the corresponding CORESET of CSS, it is multiple when having When the corresponding CORESET of CSS, the 2nd QCL information can be lowest CORESET ID couple in the corresponding all CORESET of CSS The QCL information answered, benefit be it is more preferable using the corresponding QCL information robustness of CSS, cover.Furthermore the 2nd QCL information can be with For the corresponding QCL information of the corresponding CORESET of USS, benefit is that performance is more preferable.
When only including USS in multiple CORESET that base station is terminal equipment configuration, then the 2nd QCL information can be The corresponding QCL information of the corresponding CORESET of USS, when there is the corresponding CORESET of multiple USS, the 2nd QCL information can be USS The corresponding QCL information of lowest CORESET ID in corresponding all CORESET, benefit are using the corresponding QCL information of USS Performance is good.
When only including CSS in multiple CORESET that base station is terminal equipment configuration, then the 2nd QCL information can be The corresponding QCL information of the corresponding CORESET of CSS, when there is the corresponding CORESET of multiple CSS, the 2nd QCL information can be CSS The corresponding QCL information of lowest CORESET ID in corresponding all CORESET, benefit are using the corresponding QCL information of CSS Robustness is more preferable, covers.
Since PDSCH is dispatched by PDCCH, then the 2nd QCL can also be the QCL information of detection PDCCH.
In addition, present invention also provides the detection methods of CORESET a kind of.Specifically include: the network equipment passes through (i.e. the network equipment is previous to the reconfiguration message of the resource transmission previous CORESET of dedicate CORESET scheduling The TCI table that CORESET is reconfigured) either information such as new CORESET running time-frequency resource position or QCL.In the application, Dedicate CORESET can be known as to the first CORESET, previous CORESET can be known as to the 2nd CORESET. The reconfiguration message of 2nd CORESET can be sent to the reconfiguration message of terminal device, the QCL of new CORESET for the network equipment Information may be that the network equipment is sent to terminal device.
The application is shown referring to Figure 14, Figure 14, and a kind of wireless communication system and related communication device are provided.Wireless communication System 10 includes: terminal 400 and the network equipment 500.Wireless communication system 10 can be wireless communication system 100 shown in FIG. 1. Wherein, terminal 400 can be the terminal device 103 in wireless communication system 100 shown in FIG. 1.The network equipment 500 can be figure The network equipment 101 in wireless communication system 100 shown in 1.Terminal 400 is described separately below and the network equipment 500 respectively wraps The functional unit contained.
As shown in figure 14, terminal 400 can include: receiving unit 401 and transmission unit 403.Wherein:
Transmission unit 403 can be used for that solicited message is reconfigured to network equipment transmission link at the n moment.
Receiving unit 401 can be used in the first time period after the n moment according to the first QCL infomation detection PDSCH；First QCL information indicates that the first reference signal and the second reference signal meet QCL relationship, wherein the first reference signal is the solution of PDSCH Reference signal DMRS is adjusted, the second reference signal includes the link reconfiguration associated downlink reference signal of solicited message.
Receiving unit 401 can also be used to receive the reconfiguration message that the network equipment is sent, and wherein reconfiguration message includes one or more A transmission configuration indicates TCI state.
Receiving unit 401 can also be used to be believed in the second time period after the n moment according to the QCL of the first TCI state instruction Breath detection PDSCH, wherein the first TCI state comes from reconfiguration message.
Specifically, at the time of the finish time of first time period is that terminal device receives reconfiguration message；Second time period At the time of initial time is terminal device reception reconfiguration message or later.
In some optional embodiments, second time period included the first sub- period；Wherein reconfiguration message includes by the The M TCI state for being used to detect PDSCH of one RRC signaling configuration；M is greater than or equal to 1 positive integer.Receiving unit 401 can Specifically for the QCL infomation detection PDSCH within the first sub- period according to the 2nd TCI state instruction；2nd TCI state comes from M PDSCH TCI state；First TCI state includes the 2nd TCI state.
In some optional embodiments, second time period included the second sub- period；Reconfiguration message includes passing through the 2nd RRC The K TCI state for being used to detect PDCCH of signal deployment, K are greater than or equal to 1 positive integer.Receiving unit 401 can be specific For the QCL infomation detection PDSCH within the second sub- period according to the 3rd TCI state instruction；3rd TCI state comes from and is used for Detect the K TCI state of PDCCH；First TCI state includes the 3rd TCI state.
In some optional embodiments, second time period includes the third sub- period；Reconfiguration message includes passing through first The X TCI state for being used to detect PDCCH of MAC-CE signal deployment, X is positive integer, X >=1.Receiving unit 401 can be used specifically In the QCL infomation detection PDSCH within the third sub- period according to the 4th TCI state instruction；4th TCI state comes from for examining Survey the X TCI state of PDCCH；First TCI state includes the 4th TCI state.
In some optional embodiments, second time period included the 4th sub- period, and reconfiguration message includes passing through second The Y TCI state for being used to detect PDSCH of MAC-CE signal deployment, Y is positive integer, Y >=1.Receiving unit 401 can be used specifically According to the QCL infomation detection PDSCH of the 5th TCI state instruction in the sub- period of Yu tetra-；5th TCI state comes from for examining Survey the Y TCI state of PDSCH；First TCI state includes the 5th TCI state.
In some optional embodiments, receiving unit 401 can also be used in receive the network equipment by the first CORESET scheduling The reconfiguration message of the 2nd CORESET that sends of resource or the running time-frequency resource position of new CORESET or QCL information；Second The reconfiguration message of CORESET is that the QCL information of reconfiguration message or new CORESET are reconfiguration message.
It should be understood that the specific implementation for each functional unit for including about terminal 400, can refer to aforementioned implementation Example, which is not described herein again.
As shown in figure 14, the network equipment 500 can include: transmission unit 501 and receiving unit 503.Wherein:
Receiving unit 503 can be used for the link reconfiguration request that receiving terminal apparatus is sent at the n moment.
Transmission unit 501 can be used for sending PDSCH according to the first QCL information in the first time period after the n moment；First QCL information indicates that the first reference signal and the second reference signal meet QCL relationship, wherein the first reference signal is the solution of PDSCH Reference signal DMRS is adjusted, the second reference signal includes the link reconfiguration associated downlink reference signal of solicited message.
Transmission unit 501 can also be used to send reconfiguration message to terminal device, and wherein reconfiguration message includes one or more Transmission configuration indicates TCI state.
Transmission unit 501 can also be used to be believed in the second time period after the n moment according to the QCL of the first TCI state instruction Breath sends PDSCH, wherein the first TCI state comes from reconfiguration message.
Specifically, at the time of the finish time of first time period is that terminal device receives reconfiguration message；Second time period At the time of initial time is terminal device reception reconfiguration message or later.
In some optional embodiments, second time period included the first sub- period；Wherein reconfiguration message includes by the The M TCI state for being used to detect PDSCH of one RRC signaling configuration；M is greater than or equal to 1 positive integer.Transmission unit 501 can Specifically for sending PDSCH according to the QCL information of the 2nd TCI state instruction within the first sub- period；2nd TCI state comes from M PDSCH TCI state；First TCI state includes the 2nd TCI state.
In some optional embodiments, second time period included the second sub- period；Reconfiguration message includes passing through the 2nd RRC The K TCI state for being used to detect PDCCH of signal deployment, K are greater than or equal to 1 positive integer.Transmission unit 501 can be specific For sending PDSCH according to the QCL information of the 3rd TCI state instruction within the second sub- period；3rd TCI state comes from and is used for Detect the K TCI state of PDCCH；First TCI state includes the 3rd TCI state.
In some optional embodiments, second time period includes the third sub- period；Reconfiguration message includes passing through first The X TCI state for being used to detect PDCCH of MAC-CE signal deployment, X is positive integer, X >=1.Transmission unit 501 can be used specifically In within the third sub- period according to the QCL information of the 4th TCI state instruction send PDSCH；4th TCI state comes from for examining Survey the X TCI state of PDCCH；First TCI state includes the 4th TCI state.
In some optional embodiments, second time period included the 4th sub- period, and reconfiguration message includes passing through second The Y TCI state for being used to detect PDSCH of MAC-CE signal deployment, Y is positive integer, Y >=1.Transmission unit 501 can be used specifically PDSCH is sent according to the QCL information of the 5th TCI state instruction in the sub- period of Yu tetra-；5th TCI state comes from for examining Survey the Y TCI state of PDSCH；First TCI state includes the 5th TCI state.
In some optional embodiments, transmission unit 501 can also be used in the resource dispatched by the first CORESET to terminal The reconfiguration message of the 2nd CORESET or the running time-frequency resource position of new CORESET or QCL information that equipment is sent；Second The reconfiguration message of CORESET is that the QCL information of reconfiguration message or new CORESET are reconfiguration message.
It should be understood that the specific implementation for each functional unit for including about the network equipment 500, can refer to aforementioned reality Example is applied, which is not described herein again.
To sum up, implement technical solution provided by the present application, may be implemented after the link failure and the network equipment again Which it is explicitly indicated using reception wave beam before detecting PDSCH, terminal device reliably detects PDSCH.
The step of method in conjunction with described in disclosure of the embodiment of the present invention or algorithm, can be come real in a manner of hardware It is existing, it is also possible to execute the mode of software instruction by processor to realize.Software instruction can be made of corresponding software module, Software module can be stored on RAM, flash memory, ROM, Erasable Programmable Read Only Memory EPROM (Erasable Programmable ROM, EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), register, hard disk, movement In the storage medium of hard disk, CD-ROM (CD-ROM) or any other form well known in the art.One kind is illustratively deposited Storage media is coupled to processor, to enable a processor to from the read information, and can be written to the storage medium Information.Certainly, storage medium is also possible to the component part of processor.Pocessor and storage media can be located in ASIC.Separately Outside, which can be located in transceiver or trunking.Certainly, pocessor and storage media can also be used as discrete assembly and deposit It is in wireless access network equipment or terminal device.
Those skilled in the art it will be appreciated that in said one or multiple examples, retouched by the embodiment of the present invention The function of stating can be realized with hardware, software, firmware or their any combination.It when implemented in software, can be by this A little functions storages in computer-readable medium or as on computer-readable medium one or more instructions or code into Row transmission.Computer-readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from one Any medium of the place to another place transmission computer program.Storage medium can be general or specialized computer and can deposit Any usable medium taken.
Above specific embodiment has carried out into one the purpose of the embodiment of the present invention, technical scheme and beneficial effects Step is described in detail, it should be understood that being not used to limit this above is only the specific embodiment of the embodiment of the present invention The protection scope of inventive embodiments, all any modifications on the basis of the technical solution of the embodiment of the present invention, made are equal Replacement, improvement etc., should all include within the protection scope of the embodiment of the present invention.

Claims (21)

1. a kind of method for transmitting signals characterized by comprising
Solicited message is reconfigured to network equipment transmission link at the n moment in terminal device；
The terminal device is in the first time period after the n moment according to the first QCL infomation detection PDSCH；First QCL information refers to Show that the first reference signal and the second reference signal meet QCL relationship, wherein first reference signal is the demodulation ginseng of PDSCH Signal DMRS is examined, second reference signal includes the link reconfiguration associated downlink reference signal of solicited message；
The terminal device receives the reconfiguration message that the network equipment is sent, wherein the reconfiguration message includes one or more Transmission configuration indicates TCI state；
The terminal device in the second time period after the n moment according to the QCL infomation detection PDSCH of the first TCI state instruction, Wherein the first TCI state comes from the reconfiguration message；
Wherein, at the time of the finish time of first time period is that the terminal device receives the reconfiguration message；Second time period Initial time be the terminal device receive the reconfiguration message at the time of or later.
2. method as claimed in claim 1, which is characterized in that the second time period included the first sub- period；It is wherein described heavy It include being configured by the first RRC signaling for detecting the M TCI state of PDSCH with information；M be greater than or equal to 1 it is just whole Number；
The terminal device in the second time period after the n moment according to the QCL infomation detection PDSCH of the first TCI state instruction, It specifically includes:
The terminal device is within the described first sub- period according to the QCL infomation detection PDSCH of the 2nd TCI state instruction；Institute The 2nd TCI state is stated from the M PDSCH TCI state；The first TCI state includes the 2nd TCI state.
3. such as the method for any one of claim 1-2, which is characterized in that the second time period included the second sub- period； The reconfiguration message includes being configured by the second RRC signaling for detecting the K TCI state of PDCCH, and K is greater than or equal to 1 Positive integer；
The terminal device in the second time period after the n moment according to the QCL infomation detection PDSCH of the first TCI state instruction, It specifically includes:
The terminal device is within the described second sub- period according to the QCL infomation detection PDSCH of the 3rd TCI state instruction；Institute The 3rd TCI state is stated from described for detecting the K TCI state of PDCCH；The first TCI state includes the 3rd TCI State.
4. such as the method for any one of claim 1-3, which is characterized in that the second time period includes the third sub- period； The reconfiguration message includes by the first MAC-CE signal deployment for detecting the X TCI state of PDCCH, and X is positive integer, X ≥1；
The terminal device in the second time period after the n moment according to the QCL infomation detection PDSCH of the first TCI state instruction, It specifically includes:
The terminal device is within the third sub- period according to the QCL infomation detection PDSCH of the 4th TCI state instruction；The Four TCI states are from described for detecting the X TCI state of PDCCH；The first TCI state includes the 4th TCI shape State.
5. such as the method for any one of claim 1-4, which is characterized in that the second time period included the 4th sub- period, The reconfiguration message includes by the 2nd MAC-CE signal deployment for detecting the Y TCI state of PDSCH, and Y is positive integer, Y ≥1；
The terminal device in the second time period after the n moment according to the QCL infomation detection PDSCH of the first TCI state instruction, It specifically includes:
The terminal device is within the 4th sub- period according to the QCL infomation detection PDSCH of the 5th TCI state instruction；5th TCI State is from described for detecting the Y TCI state of PDSCH；The first TCI state includes the 5th TCI state.
6. method as claimed in one of claims 1-5, which is characterized in that further include:
The terminal device receives the 2nd CORESET's of resource transmission of the network equipment by the first CORESET scheduling The running time-frequency resource position or QCL information of reconfiguration message or new CORESET；The reconfiguration message of 2nd CORESET is described The QCL information of reconfiguration message or new CORESET are the reconfiguration message.
7. a kind of method for transmitting signals characterized by comprising
The link reconfiguration request that network equipment receiving terminal apparatus is sent at the n moment；
The network equipment sends PDSCH according to the first QCL information in the first time period after the n moment；First QCL information refers to Show that the first reference signal and the second reference signal meet QCL relationship, wherein first reference signal is the demodulation ginseng of PDSCH Signal DMRS is examined, second reference signal includes the link reconfiguration associated downlink reference signal of solicited message；
The network equipment sends reconfiguration message to the terminal device, wherein the reconfiguration message includes one or more transmission Configuration instruction TCI state；
The network equipment sends PDSCH according to the QCL information of the first TCI state instruction in the second time period after the n moment, Wherein the first TCI state comes from the reconfiguration message；
Wherein, at the time of the finish time of first time period is that the terminal device receives the reconfiguration message；Second time period Initial time be the terminal device receive the reconfiguration message at the time of or later.
8. method as claimed in claim 7, which is characterized in that the second time period included the first sub- period；It is wherein described Reconfiguration message includes being configured by the first RRC signaling for detecting the M TCI state of PDSCH；M is being greater than or equal to 1 just Integer；
The network equipment sends PDSCH according to the QCL information of the first TCI state instruction in the second time period after the n moment, It specifically includes:
The network equipment sends PDSCH according to the QCL information of the 2nd TCI state instruction within the described first sub- period；Institute The 2nd TCI state is stated from the M PDSCH TCI state；The first TCI state includes the 2nd TCI state.
9. such as any one of claim 7-8 the method, which is characterized in that the second time period included the second sub- time Section；The reconfiguration message includes being configured by the second RRC signaling for detecting the K TCI state of PDCCH, and K is greater than or waits In 1 positive integer；
The network equipment sends PDSCH according to the QCL information of the first TCI state instruction in the second time period after the n moment, It specifically includes:
The network equipment sends PDSCH according to the QCL information of the 3rd TCI state instruction within the described second sub- period；Institute The 3rd TCI state is stated from described for detecting the K TCI state of PDCCH；The first TCI state includes the 3rd TCI State.
10. such as any one of claim 7-9 the method, which is characterized in that the second time period includes the third sub- time Section；The reconfiguration message includes by the first MAC-CE signal deployment for detecting the X TCI state of PDCCH, and X is just whole Number, X >=1；
The network equipment sends PDSCH according to the QCL information of the first TCI state instruction in the second time period after the n moment, It specifically includes:
The network equipment sends PDSCH according to the QCL information of the 4th TCI state instruction within the third sub- period；The Four TCI states are from described for detecting the X TCI state of PDCCH；The first TCI state includes the 4th TCI shape State.
11. such as any one of claim 7-10 the method, which is characterized in that the second time period included the 4th sub- time Section, the reconfiguration message include by the 2nd MAC-CE signal deployment for detecting the Y TCI state of PDSCH, and Y is just whole Number, Y >=1；
The network equipment sends PDSCH according to the QCL information of the first TCI state instruction in the second time period after the n moment, It specifically includes:
The network equipment sends PDSCH according to the QCL information of the 5th TCI state instruction within the 4th sub- period；5th TCI State is from described for detecting the Y TCI state of PDSCH；The first TCI state includes the 5th TCI state.
12. the method any one of as claim in claims 7-11, which is characterized in that further include:
The weight for the 2nd CORESET that the network equipment is sent by the resource of the first CORESET scheduling to the terminal device Running time-frequency resource position or QCL information with information or new CORESET；The reconfiguration message of 2nd CORESET is described heavy QCL information with information or new CORESET is the reconfiguration message.
13. such as the method for claim 2 or 8, which is characterized in that the initial time of the first sub- period is that the terminal is set It is standby when receiving first RRC signaling, the end time of the first sub- period include it is following at least one: the terminal When equipment receives the second RRC signaling, when the terminal device receives the first MAC CE signaling, the terminal device receives When the 2nd MAC CE signaling, when the terminal device receives the first DCI signaling；
Wherein, second RRC signaling is configured to the K TCI state of detection PDCCH, the first MAC CE signal deployment For detecting the X TCI state of PDCCH, the 2nd MAC CE signal deployment is used to detect the Y TCI state of PDSCH；Institute State the QCL information of the first DCI signaling instruction detection PDSCH；K, X, Y are greater than or equal to 1 positive integer.
14. such as the method for claim 3 or 9, which is characterized in that the initial time of the second sub- period is that the terminal is set It is standby when receiving second RRC signaling, the end time of the second sub- period include it is following at least one: the terminal When equipment receives the first MAC CE signaling, when the terminal device receives the 2nd MAC CE signaling, the terminal device connects When receiving the first DCI signaling；
Wherein, the first MAC CE signal deployment is used to detect the X TCI state of PDCCH, and the 2nd MACCE signaling is matched Set the Y TCI state for detecting PDSCH；The QCL information of the first DCI signaling instruction detection PDSCH；X, Y is greater than Or the positive integer equal to 1.
15. such as the method for claim 4 or 10, which is characterized in that the initial time of the third sub- period is the terminal When equipment receives the first MAC-CE signaling, the end time of the third sub- period include it is following at least one: the end When end equipment receives the 2nd MAC CE signaling, when the terminal device receives the first DCI signaling；
Wherein, the 2nd MAC CE signal deployment is used to detect the Y TCI state of PDSCH；The first DCI signaling instruction Detect the QCL information of PDSCH；Y is greater than or equal to 1 positive integer.
16. such as the method for claim 5 or 11, which is characterized in that the initial time of the 4th sub- period is the terminal When equipment receives the 2nd MAC-CE signaling, the end time of the 4th sub- period is that the terminal device receives first When DCI signaling；The QCL information of the first DCI signaling instruction detection PDSCH.
17. such as the method for any one of claim 1-16, which is characterized in that the first TCI state includes following at least one :
The smallest control resource collection CORESET identifies corresponding TCI state, user's dedicated search space in the reconfiguration message Associated the smallest CORESET identifies the associated CORESET of corresponding TCI state, public search space and identifies corresponding TCI shape State, the corresponding TCI state of the associated downlink reference signal of link reconfiguration request and the associated TCI state of synchronization signal block SSB, The corresponding TCI state of CORESET where dispatching the PDCCH of the PDSCH.
18. such as the method for any one of claim 1-17, which is characterized in that the field of the TCI state of the PDSCH is in downlink Exist in control information DCI signaling.
19. a kind of terminal device, which is characterized in that the terminal device includes requiring to appoint in 1-6,13-18 for perform claim The unit of method for transmitting signals described in one.
20. a kind of network equipment, which is characterized in that the network equipment includes requiring to appoint in 7-12,13-18 for perform claim The unit of method for transmitting signals described in one.
21. a kind of communication system, which is characterized in that including terminal device and the network equipment, the terminal device is claim Terminal device described in 19, the network equipment are the network equipment described in claim 20.
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