WO2018205874A1 - 传输方法、终端和网络设备 - Google Patents
传输方法、终端和网络设备 Download PDFInfo
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- WO2018205874A1 WO2018205874A1 PCT/CN2018/085398 CN2018085398W WO2018205874A1 WO 2018205874 A1 WO2018205874 A1 WO 2018205874A1 CN 2018085398 W CN2018085398 W CN 2018085398W WO 2018205874 A1 WO2018205874 A1 WO 2018205874A1
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- terminal
- trigger information
- dci
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- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
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Definitions
- the present application relates to the field of communications, and more particularly to a transmission method, a terminal, and a network device.
- Coordinated multipoint transmission is a method to solve the problem of inter-cell interference and improve the throughput of cell edge terminals.
- each network device can independently send downlink control information (DCI), that is, each network device is independently scheduled. Receive multiple DCIs simultaneously. Since each DCI includes trigger information of a reference signal, such as trigger information of an uplink sounding reference signal (SRS), trigger information of a demodulation reference signal (DMRS), etc., the terminal receives Multiple trigger information for similar reference signals. For the terminal, how to process the reference signal according to multiple trigger information of the same reference signal is not involved in the prior art.
- DCI downlink control information
- SRS uplink sounding reference signal
- DMRS demodulation reference signal
- the present invention provides a transmission method, a terminal, and a network device, which can solve the problem that the terminal understands that the trigger information is inconsistent after receiving the multiple trigger information in the prior art, thereby improving system performance.
- a transmission method including: receiving, by a terminal, a plurality of downlink control information DCI, where the DCI includes at least one-to-one first trigger information, where the first trigger information is used to indicate a first reference signal to the terminal.
- the used resource and/or the sending process of the first reference signal the terminal determines the target first trigger information from the plurality of first trigger information; the terminal performs the first reference according to the target first trigger information Signal transmission processing.
- the terminal performs the sending process of the first reference signal according to the target first trigger information, and specifically may be any one of the following:
- the terminal sends the first reference signal, the terminal does not send the first reference signal, and the terminal sends the first reference signal according to the resource used by the first reference signal indicated by the target first trigger information.
- the terminal may send the first reference signal according to the parameter or resource used by the terminal for transmitting the first reference signal configured by the terminal.
- the plurality of first trigger information are the same.
- the resources used by the first reference signals indicated by the plurality of first trigger information are the same.
- the terminal may determine the target first trigger information from the multiple first trigger information, and then perform the first reference according to the target first trigger information, when the first trigger information is received.
- the signal transmission processing can solve the problem that the terminal does not know how to deal with the first reference signal after receiving the plurality of first trigger information in the prior art, and thus can improve the system performance. .
- the determining, by the terminal, the target first trigger information from the multiple first trigger information including: the terminal indicating, by the one of the multiple first trigger information, the terminal sending the first reference
- the first trigger information of the signal determines the first trigger information of the target.
- the first trigger information indicating that the terminal sends the first reference signal is sent by the serving network device of the terminal.
- the terminal determines the target first trigger information from the multiple first trigger information, including:
- the terminal determines the first trigger information according to at least one of a resource location, an aggregation level, a scrambling mode, and a first indication information that are included in the multiple DCIs.
- the terminal determines the first trigger information included in the target DCI as the target first trigger information, where the target DCI satisfies at least one of the following conditions: carrying the target resource location, and merging
- the level is the target aggregation level
- the scrambling mode is the target scrambling mode
- the first indication information included is the target first indication information.
- the determining, by the terminal, the target first trigger information from the multiple first trigger information including: determining, by the terminal, a target DCI in the multiple DCIs, where the target DCI is in a predefined manner The determining is determined by the interaction between the network devices; the terminal determines the first trigger information included in the target DCI as the target first trigger information.
- the target DCI is sent by a serving network device of the terminal.
- the terminal determines the target DCI from the multiple DCIs, including: determining, by the terminal, a DCI that satisfies at least one of the following conditions as the target DCI:
- the first indication information included in the target resource location, the aggregation level is the target aggregation level, and the scrambling mode is the target scrambling mode, and the first indication information included is the target first indication information.
- the resource location is any one of the following: a search space, a control channel candidate set, and a control resource set.
- the resource used by the first reference signal includes a first reference signal sequence, a time domain resource, a frequency domain resource, a basic parameter set, and an antenna port resource used by the first reference signal. At least one of a precoding matrix and a comb structure employed by the first reference signal sequence.
- a second aspect of the present invention provides a transmission method, including: determining, by a network device, at least one DCI of a plurality of downlink control information DCI, where the DCI includes at least first trigger information, where the first trigger information is used to indicate a first reference signal to a terminal
- the used resource and/or the sending process of the first reference signal the multiple DCIs are used by the terminal to determine target first trigger information in the plurality of first trigger information, where the target first trigger information is used by the terminal to determine
- the plurality of DCIs are in one-to-one correspondence with the plurality of first trigger information; the network device sends the at least one DCI to the terminal.
- the plurality of first trigger information are the same.
- the resources used by the first reference signals indicated by the plurality of first trigger information are the same.
- the at least one DCI is the target DCI.
- the network device is a serving network device of the terminal.
- the terminal may determine the target first trigger information from the multiple first trigger information, and then perform the first reference according to the target first trigger information, when the first trigger information is received.
- the signal transmission processing can solve the problem that the terminal does not know how to deal with the first reference signal after receiving the plurality of first trigger information in the prior art, and thus can improve the system performance. .
- the at least one DCI is determined in a predefined manner or by interaction with other network devices serving the terminal.
- the DCI further includes first indication information, where the first indication information is used to indicate that the network device is a serving network device or a cooperative network device of the terminal.
- the network device is a cooperative network device of the terminal, and the at least one first trigger information included in the at least one DCI is used to indicate that the terminal does not send the first reference signal.
- a terminal for performing the method of the first aspect or any possible implementation of the first aspect.
- the terminal comprises means for performing the method of the first aspect or any of the possible implementations of the first aspect.
- a network device for performing the method of any of the possible implementations of the second aspect or the second aspect.
- the network device comprises means for performing the method of any of the second aspect or any of the possible implementations of the second aspect.
- a terminal including: a transceiver, a processor, and a memory.
- the processor is configured to control a transceiver transceiver signal for storing a computer program, the processor for calling and running the computer program from the memory, such that the terminal performs the first aspect or the first aspect in any possible implementation manner Methods.
- a network device comprising: a transceiver, a processor, and a memory.
- the processor is configured to control a transceiver transceiver signal for storing a computer program for calling and running the computer program from the memory, such that the network device performs any of the second aspect or the second aspect The method in .
- a computer program product comprising: computer program code, when the computer program code is executed by a network device, causing the terminal to perform any of the first aspect or the first aspect described above A possible implementation.
- a computer program product comprising: computer program code, when the computer program code is executed by a terminal device, causing the network device to perform the second aspect or the second aspect A method in a possible implementation.
- a ninth aspect a computer readable medium storing program code, the program code comprising instructions for performing the method of the first aspect or any of the possible implementations of the first aspect .
- a tenth aspect a computer readable medium storing program code, the program code comprising instructions for performing the method of the second aspect or any of the possible implementations of the second aspect .
- FIG. 1 is a schematic diagram of a communication system in accordance with an embodiment of the present application.
- FIG. 2 is a schematic diagram of another communication system applied to an embodiment of the present application.
- FIG. 3 is a schematic flowchart of a transmission method according to an embodiment of the present application.
- FIG. 4 is a schematic flowchart of a transmission method according to another embodiment of the present application.
- FIG. 5 is a schematic block diagram of a terminal according to an embodiment of the present application.
- FIG. 6 is a schematic block diagram of a network device according to an embodiment of the present application.
- FIG. 7 is another schematic block diagram of a terminal according to an embodiment of the present application.
- FIG. 8 is another schematic block diagram of a network device according to an embodiment of the present application.
- the terminal does not know how to perform the processing.
- the embodiment of the present application provides a transmission method based on the communication system shown in FIG. 1 , which can perform transmission processing of the reference signal according to multiple trigger information of the same type reference signal received by the terminal.
- an embodiment of the present application provides a communication system 100 .
- the communication system 100 includes at least two network devices and at least one terminal.
- the terminal accesses the network device through the wireless interface for communication, and can also communicate with another terminal, such as device to device (D2D) or machine to machine (M2M) scenario.
- the network device can communicate with the terminal or with another network device, such as a communication between the macro base station and the access point.
- a network device can provide communication services for one or more terminals, for example, network device 22 can provide communication services for terminal 42.
- a terminal can also communicate with multiple network devices on the same carrier.
- the terminal 40 can simultaneously receive the downlink data transmitted by the network device 20, the network device 22, and the network device 24 on the same carrier and in the same time period. That is, at least two network devices use the CoMP technology to transmit the downlink data to the terminal, and the CoMP technology may be implemented by using techniques such as spatial diversity and/or spatial multiplexing, which is not limited in this application.
- a network that provides services such as radio resource control (RRC) connection, non-access stratum (NAS) mobility management, and security input to the terminal through the wireless air interface protocol in the scenario where the CoMP technology is applied.
- RRC radio resource control
- NAS non-access stratum
- a device is defined as a serving network device of the terminal, and another one or more network devices that send downlink data to the terminal are defined as cooperative network devices of the terminal. It should be understood that the serving network device can also send downlink data to the terminal. Communication between the serving network device and the collaborative network device and between the plurality of collaborative network devices, such as the delivery of control messages.
- a plurality of network devices that use the CoMP technology to transmit downlink data to a terminal may be different transmission points of the same device, for example, multiple radio units (RUs) of the distributed base station. It may also be a plurality of independent network devices, for example, a plurality of base stations; or a mixture of the above two cases, which is not limited in this application.
- RUs radio units
- the multiple network devices described above may be controlled and/or scheduled by one scheduling node.
- network device 20, network device 22, and network device 24 may all be controlled and/or scheduled by scheduling node 60, and information such as control messages may be sent by the scheduling node to a plurality of network devices.
- the function of the scheduling node may also be completed by one or more network devices.
- network device 20 may implement the functionality of a scheduling node to send control messages to network device 22 and/or network device 24.
- the scheduling node may be a separate physical device (such as the scheduling node 60 shown in FIG. 1); or may be a software and/or hardware function module integrated on the network device, for example, in FIG.
- the function of the scheduling node can be implemented by the network device 20.
- the network device 20 can perform unified resource scheduling and management according to information sent by other network devices and information obtained and maintained by itself, and of course, can also be implemented by other network devices.
- the function of the scheduling node is not limited in this application.
- the communication system 100 can be various communication systems, such as: a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, and a wideband code division multiple access (wideband).
- Code division multiple access (WCDMA) system general packet radio service (GPRS), long term evolution (LTE) system, advanced long term evolution (LTE-A) system, general purpose A mobile communication system (UMTS), a 5G (or a new radio access technology (NR)) system, and the like, and a communication system using the CoMP technology is applicable to the embodiments of the present application.
- GSM global system of mobile communication
- CDMA code division multiple access
- wideband code division multiple access wideband code division multiple access
- Code division multiple access (WCDMA) system general packet radio service (GPRS), long term evolution (LTE) system, advanced long term evolution (LTE-A) system, general purpose A mobile communication system (UMTS), a 5G (or a new radio access technology (NR)) system, and the like
- GPRS general
- the network device involved in the present application may be a cell, a node corresponding to the cell (for example, a base station, a relay node), a remote radio head (RRH), and a radio remote unit (radio remote unit).
- RRU radio remote unit
- the foregoing base station may be a base transceiver station (BTS) in a GSM system or a CDMA system, a base station (NodeB) in a WCDMA system, an evolved base station (evolutional Node B, eNB or eNodeB) in an LTE system, and an NR system.
- BTS base transceiver station
- NodeB base station
- evolutional Node B, eNB or eNodeB evolved base station
- TRP reception point
- TP one or a group of base stations (including multiple antenna panels) in an 5G system, and the like. This embodiment of the present application is not particularly limited.
- the network device may be determined by a cell identity, a base station identity (ID), an antenna port index or an antenna port number, a pilot information identifier, and the like.
- the network device involved in the embodiment of the present application may be a network device adopting a CU-DU architecture.
- a network device such as a serving network device or a cooperative network device, that performs the method of the embodiment of the present application may be a centralized unit (CU), or may be a distributed unit (DU), where the CU may also be called It is a central unit or a control unit.
- the terminals referred to in this application may be mobile or fixed.
- the terminal can communicate with one or more core networks via a radio access network (RAN), and the terminal can be called a terminal device, an access terminal, a user equipment (UE), and a subscriber unit. , subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user device.
- the terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication function.
- the communication system 100 shown in FIG. 1 is only a schematic diagram of one system suitable for the present application, and the communication system 100 shown in FIG. 1 should not be limited to any communication system that can be applied to the present application.
- the number of network devices, and the number and type of terminals are merely examples, and the embodiments of the present application are not limited thereto. Further, in the communication system 100 shown in FIG.
- the communication system 100 may not be limited to including the network device.
- the terminal for example, may also include a core network device or a device for carrying a virtualized network function, etc., which will be apparent to those skilled in the art, and will not be described in detail herein.
- the first downlink control information may include trigger information of a reference signal, and the reference signal is triggered.
- the triggering information of the reference signal indicates that the terminal sends the reference signal, or indicates that the terminal does not send the reference signal, or indicates that the terminal sends the reference signal on a certain resource.
- the reference signal is SRS
- the trigger information is SRS trigger information.
- the terminal sends an SRS based on the following two trigger mechanisms:
- Trigger type 0 higher layer signaling
- Trigger type 1 DCI format 0/4/1A for frequency division duplex (FDD) and time division duplex (TDD); DCI formats 2B/2C /2D for time division duplex (TDD)
- the trigger type 0 corresponds to the periodic SRS transmission, which is triggered by the upper layer RRC signaling; the trigger type 1 corresponds to the aperiodic SRS transmission, and is triggered by the DCI of the physical downlink control channel (PDCCH).
- the time domain, frequency domain, and code domain SRS parameters of trigger type 0 and trigger type 1 are semi-statically configured by higher layer RRC signaling.
- one DCI format signaling can only trigger one terminal to send an SRS once.
- the value in the SRS request field indicates the trigger information (or SRS trigger information) of the SRS.
- the upper layer RRC signaling may configure three sets of SRS parameters (ie, a first set of SRS parameters, a second set of SRS parameters, a third set of SRS parameters) and a non-trigger state, each time by DCI format 4 "2 bits" triggers one of them, as shown in Table 1.
- the upper layer RRC signaling configures a set of SRS parameters for each terminal, and the set of SRS parameters is triggered by "1 bit" in DCI formats 0/1A/2B/2C/2D.
- the SRS trigger information (ie, "2 bits" in the DCI format 4) is '00', it indicates that the SRS trigger information is in a non-trigger state, and the terminal does not send the SRS; the SRS trigger information.
- the terminal When the message is '01', the terminal needs to send the SRS on the first set of SRS resources (including the time domain, the frequency domain, and the code domain resource) according to the indication of the first set of SRS parameters; when the SRS trigger information is '10', the terminal The SRS needs to be sent on the second set of SRS resources according to the indication of the second set of SRS parameters; when the SRS trigger information is '11', the terminal needs to use the third set of SRS resources according to the indication of the third set of SRS parameters (including time) The SRS is sent on the domain, the frequency domain, and the code domain resource.
- the first set of SRS resources including the time domain, the frequency domain, and the code domain resource
- the terminal when the SRS trigger information (ie, "1 bit” in DCI formats 0/1A/2B/2C/2D) is '0', it indicates SRS trigger information.
- the terminal In the non-trigger state, the terminal does not send the SRS at this time; when the SRS trigger information is '1', the terminal needs to indicate the SRS parameter according to the high-level RRC signaling, and the SRS resource (including the time domain, the frequency domain, and the code) SRS is sent on the domain resource).
- the first network device 110 and the second network device 120 interact with each other, and the first network device 110 and the second network device 120 can be independently configured to independently transmit downlink control information.
- the first network device may be the serving network device of the terminal 130
- the second network device may be the cooperative network device of the terminal 130
- the first network device may be the cooperative network device of the terminal 130
- the second network device may be the terminal 130 service network equipment.
- the first network device is the service network device of the terminal 130
- the second network device is the cooperative network device of the terminal 130 for illustrative purposes.
- the first network device 110 and the second network device 120 perform independent scheduling
- the first network device may send the first DCI
- the second network device may send the second DCI.
- the terminal 130 can simultaneously receive the first DCI and the second DCI in the same carrier. Since the trigger information of the SRS is included in each DCI, the terminal 130 can receive trigger information of multiple SRSs at the same time.
- the first DCI includes the first SRS trigger information
- the second DCI includes the second SRS trigger information.
- the terminal 130 can receive the first SRS trigger information and the second SRS trigger information at the same time. Since the first SRS trigger information and the second SRS trigger information may be the same, there may be differences.
- the first SRS trigger information may be '01'
- the second SRS trigger information may be '11'.
- the terminal 130 performs the SRS transmission process according to the first SRS trigger information and the second SRS trigger information, that is, whether to transmit the SRS or not to transmit the SRS or on which resource, which is an urgent problem to be solved.
- the present application proposes a transmission method for solving the problem of how the terminal performs processing of such reference signals according to multiple trigger information of the same reference signal.
- a set of parameters used by the communication system including subcarrier spacing, symbol length, CP length, and so on.
- the subcarrier spacing (SCS) is a fixed 15 kHz, and in NR the SCS will be set to 15*(2 ⁇ n) kHz, where n can take a negative number. That is to say, the SCS can be set to 3.75 kHz, 7.5 kHz, 15 kHz, 30 kHz, 60 kHz, 120 kHz, and the like.
- the value of SCS directly affects the length of the symbol in the time domain (FFT basic principle).
- the search space may include: a common search space and a UE-specific search space.
- the common search space is used for transmitting common information at the cell level, and may include, for example, control information related to paging, random access response (RAR), broadcast control channel (BCCH), and the like.
- the UE-specific search space is used for transmitting terminal (or UE) level information, and may include, for example, a downlink shared channel (DL-SCH), an uplink shared channel (UL-SCH), and the like. Control information.
- DL-SCH downlink shared channel
- UL-SCH uplink shared channel
- the common search space and the UE-specific search space are two types of search spaces defined in the LTE protocol.
- the UE-specific search space is taken as an example for illustration, but this application should not constitute any limitation, and the application does not exclude The possibility of re-division or redefinition of the search space may be defined as a UE-specific search space described in the embodiment of the present application as long as it is a resource for transmitting information at the terminal level.
- a search space is defined for a CCE aggregation level.
- a terminal device may have multiple search spaces, and CCEs in each search space may be continuously distributed.
- the terminal device needs to monitor a group of PDCCH control channels, and the group of monitored PDCCH control channels may be referred to as a “control channel candidate set”. (candidate control channel set)", or "control channel candidate”.
- Table 2 shows the correspondence between the aggregation level L, the number of available CCEs (or the search space size) N CCE,k and the number of PDCCH candidates M (L) to be monitored in a given search space:
- the size of the search space is different, and the number of PDCCH candidates is also different.
- the size of the search space M M (L) ⁇ L, or the number of CCEs included in the search space is the product of the aggregation level and the number of PDCCH candidates.
- Table 1 is only for ease of understanding, and the aggregation level L, the search space size N CCE,k defined in the LTE protocol , and the number of PDCCH candidates M (L) to be monitored in a given search space are explained between the parameters. Correspondence, but this should not constitute any limitation to the embodiments of the present invention, and the present application does not exclude the aggregation level L, the search space size N CCE, k and the PDCCH candidate to be monitored in a given search space in future protocols. The correspondence between the numbers M (L) is redefined, and the possibility of defining more parameters is not excluded.
- a CCE is composed of 9 resource element groups (REGs), and one REG is composed of resource elements (REs) of consecutive non-reference signals (RSs) in the frequency domain, that is, one
- the CCE consists of 36 REs.
- the control channel can be divided into a plurality of control resource sets, each control resource set being a set of REGs.
- the terminal device can listen to the PDCCH on one or more sets of control resources.
- a control resource set may be understood as a resource occupied by a control channel; for a terminal device, a search space of a PDCCH of each terminal device belongs to the control resource set.
- the network device may determine, from the set of control resources, a resource used for transmitting the PDCCH, and the terminal device may determine a search space of the PDCCH from the set of control resources.
- the control resource set may include time-frequency resources, for example, the frequency domain may be a piece of bandwidth, or one or more sub-bands, etc.; the time domain may be the number of time units, for example, a subframe or a time slot or a micro time. The number of symbols in the slot; the time-frequency domain may be a continuous or discontinuous resource unit, for example, a continuous resource block (RB) or a discontinuous RB.
- the definition of the RB may be a resource defined in an existing LTE protocol, or may be a resource defined in a future protocol, or may be replaced with another naming.
- the time unit may be a subframe, or may be a slot, or may be a radio frame, a mini slot or a sub slot, multiple aggregated slots, and multiple aggregated subframes.
- the symbol, the symbol, and the like may even be a transmission time interval (TTI), which is not specifically limited in the embodiment of the present application.
- TTI transmission time interval
- CoMP in this application includes, but is not limited to, joint transmission JT.
- JT includes coherent JT and non-coherent joint transmission (NCJT).
- NCJT non-coherent joint transmission
- the difference between the two is that the NCJT beamforms the data streams from multiple cooperative TPs separately.
- the coherent JT pairs the data streams from multiple cooperative TPs. Do joint beamforming.
- FIG. 3 is a schematic flowchart of a transmission method of an embodiment of the present application, showing detailed communication steps or operations of the method, but the steps or operations are merely examples, and other operations may be performed by the embodiment of the present application. Or a variant of the various operations in Figure 3. Moreover, the various steps in FIG. 3 may be performed in a different order than that presented in FIG. 3, and it is possible that not all operations in FIG. 3 are to be performed.
- FIG. 3 shows a schematic flow chart of a transmission method according to an embodiment of the present application, which is described from the perspective of device interaction.
- the terminal receives multiple DCIs sent by at least one network device.
- each DCI includes at least one type of reference signal trigger information. That is to say, each DCI may include trigger information of a type of reference signal, and may also include trigger information of multiple types of reference signals, which is not limited in this application.
- the trigger information of at least one type of reference signal included in any one of DCI #1 to DCI #N is referred to as: first trigger information; the reference signal of the type, that is, the first trigger The reference signal corresponding to the information is called: the first reference signal.
- the plurality of first trigger information included in the plurality of DCIs are recorded as: first trigger information #1 to first trigger information #N.
- the first trigger information #1 to the first trigger information #N are in one-to-one correspondence with the DCI #1 - DCI #N.
- the first trigger information #1 may be the first trigger information included in the DCI #1
- the first The trigger information #2 may be the first trigger information included in the DCI #2
- the first trigger information #N may be the first trigger information included in the DCI #N.
- the detailed description is omitted. .
- the multiple DCIs may be used to schedule a downlink PDSCH (ie, a DCL grant), or may be a UL grant for scheduling an uplink PUSCH.
- the multiple DCIs may have a DL grant for scheduling the downlink PDSCH or a UL grant for scheduling the uplink PUSCH, which is not limited in this embodiment of the present application.
- the first trigger information is used to indicate to the terminal the resource used by the first reference signal and/or the transmission process of the first reference signal. Specifically, the sending process of the first reference signal by the terminal may be not sending the first reference signal or transmitting the first reference signal.
- the first trigger information may further indicate the resource used by the terminal to send the first reference signal, or it may be said that the first trigger information may also indicate a group or A plurality of sets of parameters, the set of one or more sets of parameters being used to indicate one or more sets of resources.
- the reference group may indicate a group of resources, and may also indicate multiple groups of resources, which is not limited in this application.
- the first trigger information may indicate that the terminal does not send the first reference signal, or sends the first reference signal, or according to certain resources (including one or more groups of resources) or certain parameters (including one or more groups of parameters) ) transmitting the first reference signal.
- the terminal may determine, according to the first trigger information, that the first reference signal does not need to be sent, or sends the first reference signal, or sends the first reference signal according to the resource indicated by the first trigger information. It should be noted that, if the first trigger information only indicates that the terminal sends the first reference signal, but does not indicate the resource used by the terminal to send the first reference signal, the terminal may configure the terminal according to other information, for example, according to the high layer RRC signaling. The parameter used when transmitting the first reference signal determines the resource used to transmit the first reference signal.
- the first trigger information may indicate the one or more sets of parameters by indicating an index of one or more sets of parameters. Or it can be said that the first trigger information can indicate the one or more groups of resources by indicating an index of one or more groups of resources.
- the first trigger information may be SRS trigger information, DMRS trigger information, or CSI-RS trigger information.
- the first reference signal may be an SRS, a DMRS, or a CSI-RS. It should be understood that the first reference signal may also be other types of reference signals than the reference signals listed above. The embodiment of the present application does not specifically limit the type of the first reference signal, and accordingly, the first trigger information is not Be specifically limited.
- any one of the resources used by the first reference signal may include at least one of the following: a first reference signal sequence, a time domain resource, a frequency domain resource, a basic parameter set, and an antenna.
- the port resource, the precoding matrix and the comb rule structure used by the first reference signal sequence may include one or more of the following: an SRS sequence, a time domain resource, a frequency domain resource, a basic parameter set, and a preamble used by the SRS sequence.
- a set of resources used by the SRS may be referred to as an SRS resource.
- the SRS resource may be the same as or different from the resources configured for the SRS in the prior art (for example, LTE), and is not limited in this embodiment.
- the SRS resource is the same as the SRS parameter configured by the RRC in the prior art
- the SRS sequence, the time domain resource, the frequency domain resource, and the comb rule structure may refer to the prior art.
- the antenna port resource referred to herein may refer to an antenna port that transmits a first reference signal.
- each DCI may further include other information than the first trigger information.
- each DCI may further include trigger information of one or more types of reference signals except the first reference signal.
- the trigger information of the one or more types of reference signals is in one-to-one correspondence with one or more types of reference signals.
- each DCI may further include second trigger information.
- the second trigger information is used to indicate to the terminal the resource used by the second reference signal and/or the transmission process of the second reference signal.
- the sending process of the second reference signal by the terminal according to the second trigger information may be specifically specified by a system or a protocol, or preset by the system, and the sending process of the second reference signal by the terminal may be similar to the sending process of the first reference signal by the terminal.
- the embodiment of the present application does not specifically limit this.
- the first trigger information #1 to the first trigger information #N may all be the same, may be different, or may be partially the same, which is not limited by the embodiment of the present application.
- the resources indicated by the first trigger information #1 to the first trigger information #N may all be the same, may be different, or may be partially the same, which is not limited by the embodiment of the present application.
- the at least one network device in S310 may specifically be a serving network device of the terminal, that is, the serving network device of the terminal sends DCI #1 to DCI#N to the terminal, and correspondingly The terminal receives DCI #1 to DCI #N.
- the service network device of the terminal 130 that is, the first network device 110
- the terminal 130 receives the DCI #1 to the first network device 110. DCI#N.
- the at least one network device in S310 may specifically be a cooperative network device of the terminal, that is, the coordinated network device of the terminal sends DCI #1 to DCI#N to the terminal, and correspondingly The terminal receives DCI #1 to DCI #N.
- DCI #1 to DCI #N may be transmitted by one cooperative network device of the terminal, or DCI #1 to DCI #N may be transmitted by multiple cooperative network devices.
- one of the cooperative network devices may send one DCI, or one of the cooperative network devices may send multiple DCIs, which is not specifically limited in this application.
- the cooperative network device of the terminal 130 that is, the second network device 120, may send DCI #1 to DCI #N to the terminal 130. Accordingly, the terminal 130 receives the DCI #1 sent by the second network device 120. DCI#N.
- the at least one network device in S310 may include a serving network device of the terminal and a cooperative network device of the terminal.
- DCI #1 to DCI #N are in one-to-one correspondence with the at least one network device. That is to say, the serving network device of the terminal and the cooperative network device of the terminal respectively send a DCI to the terminal.
- the serving network device 110 and the cooperative network device 120 of the terminal 130 may respectively transmit a first DCI (ie, DCI #1) and a second DCI (ie, DCI #2) to the terminal, respectively, correspondingly, the terminal 120 can receive DCI #1 and DCI #2 simultaneously.
- the serving network device of the terminal and the cooperative network device of the terminal may respectively send corresponding DCI according to protocol specifications or predefined rules, or may interact first through an interface between the network devices (for example, an X2 interface).
- Negotiate to send DCI for example, the serving network device of the terminal and the cooperative network device of the terminal may send the same first trigger information; for example, the first trigger information sent by the serving network device of the terminal may trigger the terminal to send/not send the first a reference signal, and the cooperative network device of the terminal can only send the first trigger information in the non-trigger state, that is, the first trigger information sent indicates that the terminal does not send the first reference signal; and, for example, specifies that the coordinated network of the terminal sends the first
- the trigger information is invalid, that is, whether the first trigger information sent by the coordinated network device of the terminal triggers the terminal to send the first reference signal is regarded as invalid trigger information by the terminal, and the terminal does not perform any processing according to the first trigger information.
- the embodiment of the present application does not specifically limit whether the multiple DCIs are sent by the serving network device or sent by the cooperative network device, or are separately sent.
- DCI #1 to DCI#N in the embodiment of the present application may all be DCI formats 0/4/1A, or both may be DCI formats 2B/2C/2D. It should be understood that the DCI formats listed in the following 5G are used as an example, and may be applied to any DCI format in the future 5G.
- the DCI formats of DCI #1 to DCI#N in this application are not particularly limited.
- the terminal determines, according to the first trigger information, the target first trigger information.
- the terminal determines target trigger information in the first trigger information #1 to the first trigger information #N.
- the target trigger information can be understood as the trigger information that the terminal considers to be valid. In the first trigger information #1 to the first trigger information #N, the other first trigger information terminals except the target trigger information are considered to be invalid.
- the target trigger information may be one or more, that is, the target trigger information may be one or more first trigger information in the first trigger information #1 to the first trigger information #N. The number of target trigger information is not specifically limited.
- the terminal may determine the target first trigger information in the first trigger information #1 to the first trigger information #N in the following manner.
- the terminal determines, by the one of the first trigger information #1 to the first trigger information #N, the first trigger information that the terminal sends the first reference signal as the target first trigger information.
- the first trigger information indicating that the terminal sends the first reference signal is recorded as: first trigger information #W
- the first trigger information #1 includes the first trigger information #W, and the first trigger information #W is used to instruct the terminal to send the first reference signal, except for the first trigger information #W.
- the remaining first trigger information in the first trigger information #1 to the first trigger information #N are used to indicate that the terminal does not send the first reference signal.
- the terminal determines the first trigger information #W as the target first trigger information.
- the first trigger information #W may only indicate that the terminal sends the first reference signal, and may also instruct the terminal to send at least one set of parameters corresponding to the first reference signal or at least one group of resources used.
- the first trigger information is the SRS trigger information
- the DCI#W is DCI format 4, according to Table 1 above
- the terminal may be instructed to send the SRS according to the second set of SRS parameters. It is assumed that the DCI#W is DCI formats 0/1A/2B/2C/2D.
- the first trigger information #W may indicate that the terminal is based on the RRC signaling.
- the SRS parameter configured by the terminal sends an SRS.
- the first trigger information #W is sent by the serving network device of the terminal or sent by the cooperative network device of the terminal.
- the DCI carrying the first trigger information #W is referred to as DCI#W.
- each of the service network device and the cooperative network device of the terminal transmits one DCI of DCI #1 to DCI #N, and the network device (including the service network device of the terminal)
- the first trigger information included in the DCI sent by the cooperative network device is not enabled, that is, the terminal does not trigger the terminal to send the first reference signal, but the DCI station sent by the serving network device is configured to interact with the collaborative network device.
- the first trigger information included may trigger the terminal to send the first reference signal, or may be in a non-enabled state.
- the terminal does not send the first reference signal; if the terminal receives the trigger terminal to send the first reference signal, The first trigger information is used by the terminal to determine the first trigger information #W as the target first trigger information.
- the enabling state of the first trigger information sent by the serving network device and the cooperative network device may also be specified by the protocol (different to be exchanged through the X2 interface), for example, the cooperative network device may be specified only
- the first trigger information of the non-enabled state is sent, and the serving network device can send the first trigger information of any state, which is not specifically limited in this embodiment of the present application.
- the first trigger information #1 to the first trigger information #N are SRS#1 to SRS#N, and DCI#1 to DCI#N are all DCI format 4 as an example. The program is described in more detail.
- the SRS trigger information of the cooperative network device can only be '00', and the SRS trigger information of the serving network device may be '00', '01', '10', and '11'. Any of them.
- the terminal does not send the SRS; if the SRS#1 to SRS#N received by the terminal have the SRS trigger information that triggers the terminal to send the SRS, Then, the SRS is sent.
- the terminal receives the SRS trigger information of '01', the SRS is sent according to the first group of SRS parameters.
- the terminal determines the first trigger information according to at least one of a resource location, an aggregation level, a scrambling mode, and a first indication information that are included in the multiple DCIs.
- the terminal determines the first trigger information included in the target DCI as the target first trigger information, and the target DCI satisfies at least one of the following conditions:
- the aggregation level is the target aggregation level
- the scrambling method is the target scrambling method
- the first indication information included is the target first indication information.
- the protocol or the system may provide that the terminal only uses the first trigger information that satisfies any one of the above conditions (1) to (4) or any combination as the effective trigger information, and the first condition that does not satisfy the corresponding condition.
- the trigger information is considered to be invalid trigger information.
- the network device may notify the terminal, by using the high layer signaling or the DCI, at least one of the target resource location, the target aggregation level, the target scrambling mode, and the target first indication information.
- the target location may be any one of a target search space, a target control channel candidate set, a target carrier, and a target control resource set.
- time-frequency resources carrying DCI #1 - DCI #N are located in at least one search space of the terminal.
- the terminal determines, as the target first trigger information, the first trigger information included in the DCI detected by the target search space in the at least one search space.
- the at least one search space is in one-to-one correspondence with DCI #1 - DCI #N, that is, each search space carries one DCI.
- the at least one search space of the terminal is referred to as search space #1 to search space #N, and search space #1 to search space #N are in one-to-one correspondence with DCI #1 to DCI #N.
- the terminal uses the first trigger information included in the DCI detected in the target search space (for example, search space #J, 1 ⁇ J ⁇ N) in the search space #1 to the search space #N as the target first trigger information.
- the search space #1 - search space #N may be predefined or pre-configured.
- the search space #J corresponds to the service network device of the terminal, that is, the service network device can use the time-frequency resource in the search space #J, and the cooperative network device can use other searches in the search space #1 to the search space #N Time-frequency resources within the space.
- the terminal may detect the DCI sent by the serving network device in the search space #J, and detect the DCI sent by the cooperative network device in other search spaces.
- the DCI detected by the terminal in the search space #J is sent by the serving network device, and the DCI detected in the other search space is sent by the cooperative network device, and the terminal includes the DCI sent by the serving network device.
- the first trigger information is determined as the target first trigger information.
- DCI #1 - DCI #N may be carried on at least one control channel candidate set in the same search space.
- the terminal determines the first trigger information included in the DCI detected by the target control channel candidate set in the at least one control channel candidate set as the target first trigger information.
- the at least one control channel candidate set is in one-to-one correspondence with DCI #1 - DCI #N, that is, each control channel candidate set carries one DCI.
- the at least one control channel candidate set is recorded as control channel candidate set #1 - control channel candidate set #N, DCI #1 - DCI #N and control channel candidate set #1 - control channel candidate set #N ⁇ .
- the terminal includes the number of DCIs detected on the target control channel candidate set (for example, the control channel candidate set #Q, 1 ⁇ Q ⁇ N) in the control channel candidate set #1 to the control channel candidate set #N.
- a trigger information is used as the target first trigger information.
- the control channel candidate set #1 to the control channel candidate set #N may be predefined or pre-configured.
- control channel candidate set #Q corresponds to the serving network device of the terminal, that is, the DCI transmitted by the serving network device on the control channel candidate set #Q, and the cooperative network device is in the control channel candidate set #1 to the control channel candidate set # DCI transmitted on other control channel candidate sets in N.
- the terminal may detect the DCI sent by the serving network device on the control channel candidate set #Q, and detect the DCI sent by the cooperative network device on the other control channel candidate set.
- the DCI detected by the terminal on the control channel candidate set #Q is sent by the serving network device, and the DCI detected on the other control channel candidate set is sent by the cooperative network device, and the terminal sends the serving network device.
- the first trigger information included in the DCI is determined as the target first trigger information.
- DCI #1 - DCI #N may be carried on at least one carrier.
- the terminal determines the first trigger information included in the DCI detected by the target carrier in the at least one carrier as the target first trigger information.
- the at least one carrier is in one-to-one correspondence with DCI #1 - DCI #N, that is, one DCI is sent on each carrier.
- the at least one carrier is referred to as carrier #1 to carrier #N
- DCI #1 to DCI#N are in one-to-one correspondence with carrier #1 to carrier #N.
- the terminal uses the first trigger information included in the DCI detected on the target carrier (for example, carrier #R, 1 ⁇ R ⁇ N) in the carrier #1 to carrier #N as the target first trigger information.
- carrier #1 to carrier #N may be predefined or pre-configured.
- the carrier #R corresponds to the serving network device of the terminal, that is, the DCI transmitted by the serving network device on the carrier #R, and the DCI transmitted by the cooperative network device on the other carriers in the carrier #1 to carrier #N.
- the terminal may detect the DCI sent by the serving network device on the carrier #R, and detect the DCI sent by the cooperative network device on the other carriers.
- the DCI detected by the terminal on the carrier #R is sent by the serving network device, and the DCI detected on the other carrier is sent by the cooperative network device, and the terminal includes the DCI included in the serving network device.
- a trigger information is determined as the target first trigger information.
- DCI #1 - DCI #N may be carried in at least one control resource set.
- the terminal determines the first trigger information included in the DCI detected by the target control resource set in the at least one control resource set as the target first trigger information.
- the at least one control resource set is in one-to-one correspondence with DCI #1 - DCI #N, that is, one DCI is sent on each resource in the control resource set.
- the at least one control resource set is recorded as the control resource set #1 - control resource set #N, and the DCI #1 - DCI #N corresponds to the control resource set #1 - control resource set #N.
- the terminal will use the first trigger information included in the DCI detected on the target control resource set (for example, the control resource set #V, 1 ⁇ V ⁇ N) in the control resource set #1 - control resource set #N as Target first trigger information.
- the control resource set #1 - control resource set #N may be predefined or pre-configured.
- control resource set #V corresponds to the service network device of the terminal, that is, the DCI sent by the service network device on the resource in the control resource set #R, and the cooperative network device is in the control resource set #1 - control resource set #N
- the terminal may detect the DCI sent by the serving network device on the resource in the control resource set #V, and detect the DCI sent by the cooperative network device on the resources in the other control resource set.
- the DCI detected by the terminal on the resource in the control resource set #V is sent by the serving network device, and the DCI detected on the resource in the other control resource set is sent by the cooperative network device, and the terminal will
- the first trigger information included in the DCI sent by the serving network device is determined as the target first trigger information.
- control channel candidate set only exemplarily explain the manner in which the terminal determines the target first trigger information according to the detected position of the DCI, but this should not constitute any limitation on the present application.
- the present application may also define or distinguish the location of the DCI in other manners, for example, the time-frequency resource location, the sub-carrier spacing, and the like, which are not limited in this embodiment of the present application.
- the DCI #1 to DCI #N received by the terminal are generated by using at least one aggregation level.
- the terminal determines, by using the first trigger information included in the DCI of the target aggregation in the at least one aggregation level, as the target first trigger information.
- the at least one aggregation level is in one-to-one correspondence with DCI #1 - DCI #N, that is, different DCIs are generated by using different aggregation levels.
- the at least one aggregation level is referred to as aggregation level #1 to aggregation level #N
- aggregation level #1 to aggregation level #N are in one-to-one correspondence with DCI #1 to DCI #N.
- the terminal may use the first trigger information included in the DCI whose aggregation level is the target aggregation level (for example, the aggregation level #S, 1 ⁇ S ⁇ N) as the target first trigger information.
- the aggregation level #1 to the aggregation level #N may be predefined or pre-configured.
- the aggregation level #S corresponds to the service network device of the terminal, that is, the service network device generates the DCI #S according to the aggregation level #S and transmits it to the terminal.
- the terminal determines the first trigger information included in the DCI sent by the serving network device as the target first trigger information.
- DCI #1 to DCI #N can be scrambled by using at least one scrambling method.
- the terminal determines the first trigger information included in the DCI of the target scrambling mode in the at least one scrambling mode as the target first trigger information.
- the at least one scrambling manner is in one-to-one correspondence with DCI #1 to DCI #N, that is, different DCIs are generated by using different scrambling methods.
- the at least one scrambling method is referred to as scrambling method #1 to scrambling method #N, and one-to-one correspondence with DCI #1 to DCI #N.
- the terminal After receiving the DCI #1 to DCI #N, the terminal uses the scrambling method #1 to the scrambling method #N to descramble the respective DCIs.
- the DCI is included.
- the first trigger information is determined as the target trigger information.
- the scrambling mode #1 to the scrambling mode #N may be predefined or pre-configured.
- a terminal identity (UE identity) + a cell ID (cell ID) may be used for cyclic redundancy check (CRC) scrambling.
- the UE ID may be, for example, a cell radio network temporary identify (C-RNTI), and the cell ID may be, for example, a physical layer cell identity (PCI).
- C-RNTI cell radio network temporary identify
- PCI physical layer cell identity
- the scrambling mode #T corresponds to the serving network device of the terminal, that is, the serving network device generates DCI #T according to the scrambling mode #T, and sends the signal to the terminal.
- the terminal can descramble the DCI #T according to the descrambling method #T, thereby determining the first trigger information included in the DCI #T (i.e., the DCI transmitted by the serving network device) as the target first trigger information.
- the embodiment of the present application does not specifically limit the scrambling mode #1 to the scrambling mode #N, as long as the scrambling mode #T is matched with the service network device. It should also be understood that the UE ID and the cell identifier are not specifically limited in the embodiment of the present application, and the foregoing enumerated UE ID and cell identifier are only illustrative.
- each of the DCI #1 to DCI #N may include first indication information.
- the first indication information may be one bit (1 bit) in the DCI, and the bit may be '1' or '0'.
- the terminal may specify or pre-configure, and the terminal sets the first indication information as the target first indication information, for example, the first trigger information included in the DCI with the first indication information being '1' as the target first Trigger information.
- the first indication information may be part of the first trigger information.
- the first indication information may be used to indicate whether the corresponding DCI is sent by the serving network device or sent by the cooperative network device, for example, when the bit is '0', indicating that the corresponding DCI is sent by the cooperative network device. When the bit is '1', it indicates that the corresponding DCI is sent by the serving network device. Therefore, the terminal determines, as the target first trigger information, the first trigger information included in the DCI including the first indication information of the first indication information being the first indication information, that is, the terminal determines the first trigger information included in the DCI sent by the serving network device as the target. A trigger message.
- the terminal determines the first trigger information in the DCI that satisfies any combination of the conditions (1) to (4) as the target first trigger information.
- the conditions (1) to (4) are used in combination, for the sake of brevity, details will not be described herein. Specifically, the above description of the conditions (1) to (4) can be referred to.
- the terminal first determines the target DCI in the DCI #1 to DCI #N (for example, and records it as DCI #D, 1 ⁇ J ⁇ N); then, determines the first trigger information in the DCI #D as the target first trigger information. .
- the target DCI is determined in a predefined manner or determined by interaction between network devices.
- the predefined way or the way the network devices interact with each other specifies that the target DCI is the DCI sent by the serving network device.
- the terminal only uses the first trigger information in the DCI sent by the serving network device as the valid trigger information, and ignores the first trigger information sent by the protocol network device. In this case, the terminal needs to distinguish which DCI is sent for the serving network device and which DCI is sent for the cooperative network device. In the following, the terminal will be described in detail in two cases.
- the first trigger information sent by the collaboration network device can only trigger the non-enabled state, and the first trigger information sent by the serving network device can trigger any state.
- the protocol may be specified or determined by the network device, and the first trigger information sent by the collaboration network device may only trigger the non-enabled state.
- the first trigger information sent by the collaboration network device may only be '00'.
- the first trigger information sent by the service network device may trigger any one of the states.
- the first trigger information sent by the serving network device may be any one of '01', '10', '11', and '00'. kind.
- the terminal may determine, according to whether the first trigger information is triggered to send the first reference signal, the DCI sent by the serving network device, thereby determining the target first trigger information. It should be noted that, if the first trigger information sent by the serving network device is in a non-enabled state, because the terminal does not send the first reference signal in this case, it is not necessary to determine which DCI is sent by the serving network device. .
- the first trigger information sent by the cooperative network device can trigger any one of the states.
- the terminal may determine DCI#D according to any one of the detected DCI location, aggregation level, scrambling mode, and included second indication information, thereby determining Target first trigger information.
- the serving network device and the assisting network device may send the DCI at different resource locations, using different aggregation levels, employing different scrambling modes, and according to at least one of different second indication information.
- the system or protocol may pre-specify or configure DCI information, which may be defined as at least one of a location, an aggregation level, a scrambling mode, and a second indication information included in the DCI transmitted by the serving network device.
- the network device and the terminal side both store the DCI information, so the terminal may use the corresponding location, aggregation level, scrambling mode, and second indication information of each DCI in the detected DCI #1 to DCI #N. At least one of the determinations of the DCI sent by the serving network device, namely DCI #D.
- the second indication information may be used to indicate whether the corresponding DCI is sent by the serving network device or sent by the cooperative network device.
- the second indication information may be the same as the first indication information, and the second indication information may refer to the description of the first indication information in the foregoing. For brevity, no further details are provided herein.
- the terminal may determine the DCI #D according to the search space, the control channel candidate set, or the carrier where the DCI is located.
- the specific implementation process of the terminal determining the DCI #D according to the detected location of the DCI, the aggregation level, the scrambling mode, and the included second indication information may be correspondingly described in the foregoing manner. For the sake of brevity, it will not be repeated here.
- target DCI may also be a DCI sent by the cooperative network device, which is not limited in this embodiment of the present application.
- the terminal determines the target first trigger information according to the priorities of the first trigger information #1 to the first trigger information #N.
- the DCI #1 to DCI #N may include third indication information for indicating a priority of the first trigger information in the corresponding DCI.
- the third indication information may be one bit (1 bit) in the DCI, and the bit may be '1' or '0', '1' indicates that the priority is high, and '0' indicates that the priority is low.
- the terminal uses the first trigger information with a high priority as the target first trigger information according to the third indication information.
- the first trigger information with high priority may be sent by the serving network device. That is, the first trigger information sent by the serving network device has a higher priority than the first trigger information sent by the cooperative network device.
- the terminal uses the first trigger information #1 to the first trigger information #N as the target first trigger information. That is to say, all the first trigger information is valid.
- the first trigger information #1 to the first trigger information #N may be the same or different, and the embodiment of the present application does not limit this.
- the resources corresponding to the multiple first trigger information may be the same or different, which is not limited in this embodiment of the present application.
- the precoding matrices of the plurality of groups of resources corresponding to the plurality of first trigger information may be the same or different.
- the terminal performs a sending process of the first reference signal according to the target first trigger information.
- the terminal after determining the target first trigger information, the terminal does not send the first reference signal according to the target first trigger information; or sends the first according to the resource configured by the resource/high layer RRC signaling indicated by the target first trigger information.
- a reference signal A reference signal.
- the terminal may determine the target first trigger information from the multiple first trigger information, and then perform the first reference according to the target first trigger information, when the first trigger information is received.
- the signal transmission processing can solve the problem that the terminal does not know how to deal with the first reference signal after receiving the plurality of first trigger information in the prior art, and thus can improve the system performance. .
- the information that needs to be pre-configured may be controlled by, for example, radio resource control (RRC) signaling or media access control.
- RRC radio resource control
- High-level signaling configuration such as media access control control element (MAC CE).
- FIG. 4 is a schematic flow chart of a transmission method according to an embodiment of the present application.
- the first network device and the second network device in FIG. 4 may correspond to the first network device 110 and the second network device 120 shown in FIG. 2, respectively.
- the first network device is a service network device of the terminal, and the second network device is a cooperative network device of the terminal.
- the first network device generates a first DCI.
- the first DCI includes first SRS trigger information, and the first SRS trigger information is used to trigger the terminal to send the SRS according to the first group of SRS parameters.
- the second network device generates a second DCI.
- the second DCI includes the second SRS triggering information, where the second SRS triggering information is used to trigger the terminal to send the SRS according to the second group of SRS parameters, or the second triggering information is used to indicate that the terminal does not send the SRS.
- the first network device sends the first DCI.
- the second network device sends the second DCI.
- steps S410 and S420 may be performed simultaneously or may not be performed at the same time.
- steps S430 and S440 may be performed simultaneously or may not be performed at the same time.
- the present application does not distinguish between the order of S430 and S440.
- the execution of steps S420 and S430 is not in the order.
- the terminal determines target SRS trigger information according to the first DCI and the second DCI.
- the terminal may determine, according to the detected location, aggregation level, or scrambling mode of the first DCI and the second DCI, that the first DCI is sent by the first network device, that is, the serving network device of the terminal.
- the DCI is the second network device, that is, the DCI sent by the coordinated network device of the terminal, and the first DCI is determined as the target DCI, and the first SRS trigger information included in the target DCI is determined as the target SRS trigger information.
- the first DCI includes a first indication information #1, where the first indication information #1 is used to indicate that the first DCI is sent by the first network device, that is, the service network device of the terminal.
- the second indication includes a first indication information #2, where the first indication information #2 is used to indicate that the second DCI is sent by the second network device, that is, the coordinated network device of the terminal. Therefore, the terminal determines the first SRS trigger information as the target SRS trigger information according to the first indication information #1 and the first indication information #2.
- the terminal sends the SRS according to the target SRS trigger information.
- the terminal transmits the SRS according to the first group of SRS parameters.
- the terminal may determine the SRS sequence, the time domain resource and the frequency domain resource for transmitting the SRS, the antenna port resource, the precoding matrix used by the SRS sequence, and the comb rule structure according to the first group of SRS parameters, and further, according to the determined The parameter sends the SRS.
- the terminal when the terminal can receive multiple SRS trigger information (for example, the first SRS trigger information and the second SRS trigger information), the SRS trigger information is sent, and the existing In the technology, after the terminal receives multiple SRS trigger information, the terminal understands the inconsistency of the SRS transmission processing, thereby improving system performance.
- SRS trigger information for example, the first SRS trigger information and the second SRS trigger information
- FIG. 5 is a schematic block diagram of a terminal 500 according to an embodiment of the present application. As shown in FIG. 5, the terminal 500 includes a transceiver unit 510 and a processing unit 520.
- the transceiver unit 510 is configured to receive a plurality of downlink control information DCI, where the DCI includes at least one-to-one first trigger information, where the first trigger information is used to indicate, to the terminal, resources used by the first reference signal. And/or a sending process of the first reference signal; the processing unit 520, configured to determine target first trigger information from the plurality of first trigger information; the transceiver unit 510 is further configured to: according to the target The triggering information is used to perform a transmission process of the first reference signal.
- DCI downlink control information
- the processing unit 520 configured to determine target first trigger information from the plurality of first trigger information
- the transceiver unit 510 is further configured to: according to the target The triggering information is used to perform a transmission process of the first reference signal.
- processing unit 520 is specifically configured to:
- processing unit 520 is specifically configured to:
- the first trigger information is determined according to at least one of a resource location, an aggregation level, a scrambling mode, and the included first indication information, where the multiple DCIs are located.
- the processing unit 520 is specifically configured to:
- Determining a target DCI from the plurality of DCIs the target DCI being determined in a predefined manner or determined by interaction between network devices;
- processing unit 520 is specifically configured to:
- the target resource location is any one of the following:
- Target search space Target search space, target control channel candidate set, and target control resource set.
- the resources used by the first reference signal include a first reference signal sequence, a time domain resource, a frequency domain resource, a basic parameter set, a precoding matrix used by the first reference signal sequence, and a comb rule structure. At least one.
- the terminal 500 may correspond to a terminal in a transmission method according to an embodiment of the present application, and the terminal 500 may include a unit for performing a method of terminal execution in the methods illustrated in FIGS. 3 and 4.
- each unit in the terminal 500 and the other operations and/or functions described above are respectively used to implement the corresponding processes of the method shown in FIG. 3 and FIG. 4, and specifically, the transceiver unit 510 is configured to perform the method in the method shown in FIG. S310 and S330, the processing unit 520 is configured to perform S320 in the method shown in FIG. 3; the transceiver unit 510 is further configured to execute S430, S440, and S460 in the method shown in FIG. 4, and the processing unit 520 is configured to execute the method in FIG. S450 in the illustrated method.
- the specific process in which each unit performs the above-mentioned corresponding steps has been described in detail above, and is not described herein again for brevity.
- FIG. 6 is a schematic block diagram of a network device 600 provided by an embodiment of the present application. As shown in FIG. 6, the 600 includes a processing unit 610 and a transceiver unit 620.
- the processing unit 610 is configured to determine at least one DCI of the multiple downlink control information DCI, where the DCI includes at least first trigger information, where the first trigger information is used to indicate to the terminal the resources used by the first reference signal and/or For transmitting the first reference signal, the multiple DCIs are used by the terminal to determine target first trigger information in the plurality of first trigger information, where the target first trigger information is used by the terminal to determine the first
- the sending process of the reference signal, the plurality of DCIs are in one-to-one correspondence with the plurality of first trigger information, and the transceiver unit 620 is configured to send the at least one DCI to the terminal.
- the at least one DCI is determined in a predefined manner or by interaction with other network devices serving the terminal.
- the DCI further includes first indication information, where the first indication information is used to indicate that the network device is a serving network device or a cooperative network device of the terminal.
- the network device is a cooperative network device of the terminal, and the at least one first trigger information included in the at least one DCI is used to indicate that the terminal does not send the first reference signal.
- the plurality of first trigger information are the same.
- the network device 600 may correspond to a network device in a transmission method according to an embodiment of the present invention, and the network device 600 may include a unit for performing the method performed by the network device in the method illustrated in FIG. 3, or FIG. A unit of a method performed by a first network device and/or a second network device in the illustrated method.
- each unit in the network device 600 and the other operations and/or functions described above are respectively used to implement the corresponding processes of the method shown in FIG. 3 and FIG. 4, and specifically, the transceiver unit 620 is configured to execute the method shown in FIG. S310; the transceiver unit 620 is further configured to execute S430, S440, and S460 in the method shown in FIG. 4, and the processing unit 610 is configured to execute S410 and S420 in the method shown in FIG.
- the specific process in which each unit performs the above-mentioned corresponding steps has been described in detail above, and is not described herein again for brevity.
- FIG. 7 is another schematic block diagram of a terminal 700 according to an embodiment of the present application.
- the terminal 700 includes a processor 710 and a transceiver 720.
- the terminal 700 further includes a memory 730.
- the processor 710, the transceiver 720 and the memory 730 communicate with each other through an internal connection path for transferring control and/or data signals
- the memory 730 is for storing a computer program
- the processor 710 is used for the memory 730.
- the computer program is called and executed to control the transceiver 720 to send and receive signals.
- the transceiver 720 is configured to receive a plurality of downlink control information DCI, where the DCI includes at least one-to-one corresponding first trigger information, the first trigger information. a process for indicating a resource used by the first reference signal to the terminal and/or a sending process of the first reference signal; the processor 710 is configured to determine target first trigger information from the plurality of first trigger information; The transceiver 720 is further configured to perform a sending process of the first reference signal according to the target first trigger information.
- DCI downlink control information
- the above processor 710 and memory 730 can synthesize a processing device, and the processor 710 is configured to execute the program code stored in the memory 730 to implement the above functions.
- the memory 730 can also be integrated in the processor 710 or independent of the processor 710.
- the terminal may further include an antenna 740, configured to send downlink data or downlink control signaling output by the transceiver 720 by using a wireless signal.
- the terminal 700 may correspond to a terminal in a transmission method according to an embodiment of the present application, and the terminal 700 may include a unit for performing a method performed by the terminal in the methods illustrated in FIGS. 3 and 4.
- each unit in the terminal 700 and the above other operations and/or functions respectively implement a corresponding flow of the method shown in FIG. 3 and FIG. 4, specifically, the memory 730 is configured to store the program code, so that the processor 710 is When the program code is executed, S320 in the method shown in FIG. 3 is executed, S450 in the method shown in FIG.
- transceiver 720 is controlled to execute S310 and S330 in the method shown in FIG. 3 through the antenna 740.
- S430, S440, and S460 in the method shown in FIG. 4 are executed.
- the specific process of the above-mentioned corresponding steps of each unit has been described in detail in the above method, and is not described herein again for brevity.
- FIG. 8 is another schematic block diagram of a network device 800 provided by an embodiment of the present application.
- the network device 800 includes a processor 801 and a transceiver 802.
- the network device 800 further includes a memory 803.
- the processor 802, the transceiver 802 and the memory 803 communicate with each other through an internal connection path for transferring control and/or data signals
- the memory 803 is for storing a computer program
- the processor 801 is used for the memory 803.
- the computer program is called and run to control the transceiver 802 to send and receive signals.
- the processor 801 is configured to determine at least one DCI of the plurality of downlink control information DCI, where the DCI includes at least first trigger information, and the first trigger information is used by the first trigger information. Transmitting, to the terminal, a resource used by the first reference signal and/or a sending process of the first reference signal, where the multiple DCI is used by the terminal to determine target first trigger information in the plurality of first trigger information The target first trigger information is used by the terminal to determine a sending process for the first reference signal, where the plurality of DCIs are in one-to-one correspondence with the plurality of first trigger information; the transceiver 802 is configured to send to the terminal The at least one DCI.
- the above processor 801 and memory 803 can synthesize a processing device, and the processor 801 is configured to execute the program code stored in the memory 803 to implement the above functions.
- the memory 803 can also be integrated in the processor 801 or independent of the processor 801.
- the network device 800 may further include an antenna 804, configured to send uplink data or uplink control signaling output by the transceiver 802 by using a wireless signal.
- the network device 800 may correspond to a network device in a transmission method according to an embodiment of the present application, and the network device 800 may include a unit, or a diagram, for performing a method performed by a network device in the method illustrated in FIG.
- the units in the network device 800 and the other operations and/or functions described above are respectively used to implement the corresponding processes of the methods shown in FIG. 3 and FIG. 4, specifically, the memory 803 is configured to store program codes such that the processor 801 When the program code is executed, S410 and S420 in the method shown in FIG.
- the above-mentioned processor 801 can be used to perform the actions implemented by the network device described in the foregoing method embodiments, and the transceiver 802 can be used to perform the actions of the network device described in the foregoing method embodiments to transmit or transmit to the terminal.
- the transceiver 802 can be used to perform the actions of the network device described in the foregoing method embodiments to transmit or transmit to the terminal.
- the above processor 801 and memory 803 can be integrated into one processing device, and the processor 801 is configured to execute program code stored in the memory 803 to implement the above functions.
- the memory 803 can also be integrated in the processor 801.
- the network device 800 described above may also include a power source 805 for providing power to various devices or circuits in the network device.
- the network device 800 may further include one or more of an input unit 806, a display unit 807, an audio circuit 808, a camera 809, a sensor 810, and the like, the audio circuit.
- a speaker 8082, a microphone 8084, and the like can also be included.
- the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and dedicated integration.
- DSPs digital signal processors
- ASIC application specific integrated circuit
- FPGA field programmable gate array
- the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory.
- the volatile memory can be a random access memory (RAM) that acts as an external cache.
- RAM random access memory
- RAM random access memory
- SRAM static random access memory
- DRAM dynamic random access memory
- synchronous dynamic randomness synchronous dynamic randomness.
- Synchronous DRAM SDRAM
- DDR SDRAM double data rate synchronous DRAM
- ESDRAM enhanced synchronous dynamic random access memory
- SLDRAM synchronous connection dynamic random access memory Take memory
- DR RAM direct memory bus random access memory
- the above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination.
- the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
- the computer program product includes one or more computer instructions.
- the computer program instructions When the computer program instructions are loaded or executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
- the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
- the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, infrared, wireless, microwave, etc.).
- the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that contains one or more sets of available media.
- the usable medium can be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium.
- the semiconductor medium can be a solid state hard drive.
- the disclosed systems, devices, and methods may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
- the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
- the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .
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Abstract
本申请提供了一种传输方法、终端和网络设备,能够在终端接收到多个第一触发信息的情况下,进行第一参考信号的发送处理,解决了现有技术中终端在接收到多个第一触发信息后,终端对于参考信号的发送处理理解不一致问题,从而能够提高系统性能。该方法包括:终端接收多个下行控制信息DCI,所述DCI至少包括与其一一对应的第一触发信息,所述第一触发信息用于向终端指示第一参考信号所使用的资源和/或对所述第一参考信号的发送处理;所述终端从多个第一触发信息中确定出目标第一触发信息;所述终端根据所述目标第一触发信息,进行所述第一参考信号的发送处理。
Description
本申请要求于2017年5月12日提交中国专利局、申请号为201710334272.9、申请名称为“传输方法、终端和网络设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信领域,并且更具体地,涉及一种传输方法、终端和网络设备。
协同多点传输(coordinated multipoint transmission,CoMP)是一种解决小区间干扰问题并提升小区边缘终端吞吐量的方法。在CoMP,例如非相干传输(non-coherent joint transmission,NCJT))场景下,每个网络设备可以独立发送下行控制信息(downlink control information,DCI),即每个网络设备独立调度,此时终端可同时接收多个DCI。由于每个DCI内均包含参考信号的触发信息,例如上行探测参考信号(sounding reference signal,SRS)的触发信息、解调参考信号(demodulation reference signal,DMRS)的触发信息等,因此终端会收到同类参考信号的多个触发信息。而对于终端如何根据同类参考信号的多个触发信息进行该类参考信号的处理,现有技术并未涉及。
发明内容
本申请提供一种传输方法、终端和网络设备,能够解决现有技术中终端在接收到多个触发信息后,终端对于触发信息理解不一致的问题,从而能够提高系统性能。
第一方面,提供了一种传输方法,包括:终端接收多个下行控制信息DCI,该DCI至少包括与其一一对应的第一触发信息,该第一触发信息用于向终端指示第一参考信号所使用的资源和/或对该第一参考信号的发送处理;该终端从多个第一触发信息中确定出目标第一触发信息;该终端根据该目标第一触发信息,进行该第一参考信号的发送处理。
在本申请中,该终端根据该目标第一触发信息,进行该第一参考信号的发送处理,具体可以为以下中的任一种:
终端发送第一参考信号、终端不发送第一参考信号、终端根据目标第一触发信息所指示的第一参考信号所使用的资源,发送第一参考信号。
其中,在第一触发信息仅指示终端发送第一参考信号的情况下,终端可以根据高层RRC信令为终端配置的发送第一参考信号时所使用的参数或资源,发送第一参考信号。
可选地,该多个第一触发信息相同。
进一步地,该多个第一触发信息所指示的第一参考信号所使用的资源相同。
本申请实施例的传输方法,终端在接收到多个第一触发信息的情况下,能够从多个第一触发信息中确定出目标第一触发信息,进而根据目标第一触发信息进行第一参考信号的 发送处理,从而能够解决了现有技术中终端在接收到多个第一触发信息后,对于第一触发信息理解不一致从而导致不知如何对第一参考信号处理的问题,进而能够提高系统性能。
在一种可能的实现方式中,该终端从多个第一触发信息中确定出目标第一触发信息,包括:该终端将该多个第一触发信息中的一个指示该终端发送该第一参考信号的第一触发信息,确定该目标第一触发信息。
可选地,所述一个指示该终端发送该第一参考信号的第一触发信息为所述终端的服务网络设备发送的。
在一种可能的实现方式中,该终端从多个第一触发信息中确定出目标第一触发信息,包括:
所述终端根据所述多个DCI所在的资源位置、聚合等级、加扰方式和所包括的第一指示信息中的至少一种,确定所述第一触发信息。
可选地,所述终端将目标DCI所包括的第一触发信息确定为所述目标第一触发信息;其中,所述目标DCI满足下述条件中的至少一个条件:承载于目标资源位置、聚合等级为目标聚合等级、加扰方式为目标加扰方式、所包括的第一指示信息为目标第一指示信息。
在一种可能的实现方式中,该终端从多个第一触发信息中确定出目标第一触发信息,包括:该终端确定该多个DCI中的目标DCI,该目标DCI是通过预定义的方式确定的或是通过网络设备之间交互的方式确定的;该终端将该目标DCI所包括的第一触发信息确定为该目标第一触发信息。
可选地,所述目标DCI为所述终端的服务网络设备发送的。
在一种可能的实现方式中,该终端从该多个DCI中确定出目标DCI,包括:该终端将满足下述条件中的至少一个条件的DCI确定为该目标DCI:
承载于目标资源位置、聚合等级为目标聚合等级、加扰方式为目标加扰方式、所包括的第一指示信息为目标第一指示信息。
在一种可能的实现方式中,该资源位置为下述中的任一种:搜索空间、控制信道候选集和控制资源集合。
在一种可能的实现方式中,该第一参考信号所使用的资源包括该第一参考信号所使用的第一参考信号序列、时域资源、频域资源、基本参数集、天线端口资源、该第一参考信号序列所采用的预编码矩阵以及梳尺结构中的至少一种。
第二方面,提供了一种传输方法,包括:网络设备确定多个下行控制信息DCI的至少一个DCI,该DCI至少包括第一触发信息,该第一触发信息用于向终端指示第一参考信号所使用的资源和/或对该第一参考信号的发送处理,该多个DCI用于该终端确定多个第一触发信息中的目标第一触发信息,该目标第一触发信息用于终端确定对第一参考信号的发送处理,该多个DCI与该多个第一触发信息一一对应;该网络设备向该终端发送该至少一个DCI。
可选地,该多个第一触发信息相同。
进一步地,该多个第一触发信息所指示的第一参考信号所使用的资源相同。
可选地,所述至少一个DCI为所述目标DCI。
进一步地,所述网络设备为所述终端的服务网络设备。
本申请实施例的传输方法,终端在接收到多个第一触发信息的情况下,能够从多个第 一触发信息中确定出目标第一触发信息,进而根据目标第一触发信息进行第一参考信号的发送处理,从而能够解决了现有技术中终端在接收到多个第一触发信息后,对于第一触发信息理解不一致从而导致不知如何对第一参考信号处理的问题,进而能够提高系统性能。
在一种可能的实现方式中,该至少一个DCI是通过预定义的方式或是通过与为该终端服务的其他网络设备之间交互的方式确定的。
在一种可能的实现方式中,该DCI还包括第一指示信息,该第一指示信息用于指示该网络设备为该终端的服务网络设备或协作网络设备。
在一种可能的实现方式中,该网络设备为该终端的协作网络设备,该至少一个DCI所包括的至少一个第一触发信息用于指示该终端不发送该第一参考信号。
第三方面,提供了一种终端,用于执行第一方面或第一方面的任意可能的实现方式中的方法。具体地,该终端包括用于执行第一方面或第一方面的任意可能的实现方式中的方法的单元。
第四方面,提供了一种网络设备,用于执行第二方面或第二方面的任意可能的实现方式中的方法。具体地,该网络设备包括用于执行第二方面或第二方面的任意可能的实现方式中的方法的单元。
第五方面,提供了一种终端,包括:收发器、处理器和存储器。该处理器用于控制收发器收发信号,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得该终端执行第一方面或第一方面任一种可能实现方式中的方法。
第六方面,提供了一种网络设备,包括:收发器、处理器和存储器。该处理器用于控制收发器收发信号,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得该网络设备执行第二方面或第二方面任一种可能实现方式中的方法。
第七方面,提供了一种计算机程序产品,所述计算机程序产品包括:计算机程序代码,当所述计算机程序代码被网络设备运行时,使得所述终端执行上述第一方面或第一方面任一种可能实现方式中的方法。
第八方面,提供了一种计算机程序产品,所述计算机程序产品包括:计算机程序代码,当所述计算机程序代码被终端设备运行时,使得所述网络设备执行上述第二方面或第二方面任一种可能实现方式中的方法。
第九方面,提供了一种计算机可读介质,所述计算机可读介质存储有程序代码,所述程序代码包括用于执行第一方面或第一方面任一种可能实现方式中的方法的指令。
第十方面,提供了一种计算机可读介质,所述计算机可读介质存储有程序代码,所述程序代码包括用于执行第二方面或第二方面任一种可能实现方式中的方法的指令。
图1是根据本申请实施例的一个通信系统的示意图。
图2是应用于本申请实施例的另一通信系统的示意图。
图3是根据本申请实施例的传输方法的示意性流程图。
图4是根据本申请另一实施例的传输方法的示意性流程图。
图5是根据本申请实施例的终端的示意性框图。
图6是根据本申请实施例的网络设备的示意性框图。
图7是根据本申请实施例的终端的另一示意性框图。
图8是根据本申请实施例的网络设备的另一示意性框图。
下面将结合附图,对本申请中的技术方案进行描述。
为了解决现有技术中的在终端接收到同类参考信号的多个触发信息时,终端不知道如何进行处理的问题。本申请实施例基于图1所示的通信系统提出了一种传输方法,能够根据终端接收到的同类参考信号的多个触发信息,进行该类参考信号的发送处理。
如图1所示,本申请实施例提供了一种通信系统100。该通信系统100包括至少两个网络设备和至少一个终端。终端通过无线接口接入网络设备进行通信,也可以与另一终端进行通信,如设备对设备(device to device,D2D)或机器对机器(machine to machine,M2M)场景下的通信。网络设备可以与终端通信,也可以与另一网络设备进行通信,如宏基站和接入点之间的通信。在通信系统100中,一个网络设备可以为一个或多于一个终端提供通信服务,例如网络设备22可以为终端42提供通信服务。一个终端也可以在相同载波上与多个网络设备进行通信,例如终端40可以在相同的载波上以及相同的时间段内同时接收网络设备20、网络设备22以及网络设备24所传输的下行数据,即至少两个网络设备采用CoMP技术向终端传输下行数据,其中,CoMP技术可以采用空间分集和/或空间复用等技术实现,本申请对此不做限定。
在应用CoMP技术的场景中,通过无线空口协议为终端提供无线资源控制(radio resource control,RRC)连接、非接入层(non-access stratum,NAS)移动性管理和安全性输入等服务的网络设备定义为该终端的服务网络设备,其他一个或多于一个向该终端发送下行数据的网络设备定义为该终端的协作网络设备。应理解,服务网络设备也可以向终端发送下行数据。服务网络设备和协作网络设备之间以及多个协作网络设备之间可以进行通信,例如进行控制消息的传递。在本申请实施例所提供的通信系统100中,采用CoMP技术向终端传输下行数据的多个网络设备可以是同一设备的不同传输点,例如分布式基站的多个射频单元(Radio Unit,RU);也可以是多个独立的网络设备,例如多个基站;也可以是上述两种情况的混合,本申请对此不做限定。
可选的,上述的多个网络设备可以由一个调度节点进行控制和/或调度。例如图1中,网络设备20、网络设备22和网络设备24都可以由调度节点60进行控制和/或调度,控制消息等信息可以由调度节点向多个网络设备发送。可选的,调度节点的功能也可以由一个或者多个网络设备完成。例如,网络设备20可以实现调度节点的功能,向网络设备22和/或网络设备24发送控制消息。需要说明的是,调度节点可以是单独的物理设备(如图1所示的调度节点60);也可以是集成在网络设备上的一个软件和/或硬件功能模块,例如,在图1中,可以由网络设备20实现调度节点的功能,此时网络设备20可以根据其它网络设备发送的信息以及自身获得和维护的信息进行统一的资源调度和管理等,当然,也可以由其它网络设备来实现该调度节点的功能,本申请对此不做限制。
应理解,通信系统100可以为各种通信系统,例如:全球移动通讯(global system of mobile communication,GSM)系统、码分多址(code division multiple access,CDMA)系统、宽带码分多址(wideband code division multiple access,WCDMA)系统、通用分组无 线业务(general packet radio service,GPRS)、长期演进(long term evolution,LTE)系统、先进的长期演进(advanced long term evolution,LTE-A)系统、通用移动通信系统(universal mobile telecommunication system,UMTS)、5G(或称为新一代无线接入技术(new radio access technology,NR))系统等,应用CoMP技术的通信系统中,都适用本申请实施例提供的技术方案。本申请实施例描述的系统架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
本申请所涉及到的网络设备可以是小区(cell),小区对应的节点(例如:基站、中继节点)、远端射频头(remote radio head,RRH)、射频拉远单元(radio remote unit,RRU)、天线端口(antenna port)等,可以统称为传输点(Transmission,TP)。上述的基站可以是GSM系统或CDMA系统中的基站(base transceiver station,BTS)、WCDMA系统中的基站(NodeB),LTE系统中的演进型基站(evolutional Node B,eNB或eNodeB)、NR系统中发送接收点(transmission reception point,TRP)、TP、5G系统中的基站的一个或一组(包括多个天线面板)天线面板等。本申请实施例对此并未特别限定。
网络设备可以由小区标识、基站标识(identity,ID)、天线端口索引或天线端口号、导频信息标识等确定。
另外,本申请实施例所涉及的网络设备可以是采用CU-DU架构的网络设备。执行本申请实施例的方法的网络设备,例如服务网络设备或协作网络设备可以是中央控制单元(centralized unit,CU),也可以是分布式单元(distributed unit,DU),其中,CU也可以称为中央节点(central unit)或者控制节点(control unit)。
本申请所涉及到的终端可以是移动的或固定的。终端可以经无线接入网(radio access network,RAN)与一个或多个核心网(core network)进行通信,终端可称为终端设备、接入终端、用户设备(user equipment,UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。终端可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop,WLL)站、个人数字处理(personal digital assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备等。
需要说明的是,图1所示的通信系统100仅是适用于本申请的一个系统的示意图,图1所示的通信系统100不应对可以应用于本申请的通信系统作任何限定。图1所示的通信系统100中所包含的网络设备的数量及结构,不同网络设备以及与其进行通信的终端的数量和分布,在相同时间段内以及相同载波上采用CoMP技术向相同终端发送数据的网络设备的个数,以及终端的数量和类型仅仅是一种举例,本申请实施例也并不限制于此。此外,在如图1所示的通信系统100中,尽管示出了网络设备20、网络设备22和网络设备24,以及多个终端,但所述通信系统100可以并不限于包括所述网络设备和终端,譬如还可以包括核心网设备或用于承载虚拟化网络功能的设备等,这些对于本领域普通技术人员而言是显而易见的,在此不一一详述。
为更清楚的说明本申请的方案,首先结合图2所示的通信系统200简要介绍现有技术 存在的问题,也即本申请实际要解决的技术问题。
现有技术中,同一时刻只有一个网络设备(例如,网络设备110)通过下行控制信息(downlink control information,DCI)(例如,第一下行控制信息)调度终端130。第一下行控制信息可以包含一个参考信号的触发信息,触发该参考信号。其中,该参考信号的触发信息指示终端发送该参考信号,或者指示该终端不发送该参考信号,或者指示该终端在某一资源上发送该参考信号。为了便于理解和说明,下面以该参考信号为SRS,该触发信息为SRS触发信息为例进行说明。
在现有LTE协议中,终端基于以下两种触发机制,发送SRS:
触发类型0(trigger type 0):高层信令
触发类型1(trigger type 1):DCI格式(formats)0/4/1A,用于频分双工(frequency division duplex,FDD)和时分双工(time division duplex,TDD);DCI formats 2B/2C/2D,用于时分双工(time division duplex,TDD)
其中,触发类型0对应周期SRS传输,由高层RRC信令触发;触发类型1对应非周期SRS传输,由下行链路控制信道(physical downlink control channel,PDCCH)的DCI触发。触发类型0和触发类型1的时域、频域、码域SRS参数(即NR中的SRS resource)均由高层RRC信令半静态配置。
在现有技术中,对于非周期SRS(触发类型1),一个DCI format信令只能触发一个终端发送一次SRS。
表1 触发类型1 DCI format 4 SRS请求类型表
SRS请求域中的值表示SRS的触发信息(或者称SRS触发信息)。对于一个终端,高层RRC信令可为其配置三组SRS参数(即第一组SRS参数、第二组SRS参数、第三组SRS参数)和一个非触发态,每次由DCI format 4中的“2比特”触发其中一组,如表1所示。或者,高层RRC信令为每个终端配置一组SRS参数,由DCI formats 0/1A/2B/2C/2D中的“1比特”触发该组SRS参数。
以DCI format 4举例来说,当SRS触发信息(即DCI format 4中的“2比特”)为'00'时,表示SRS触发信息为非触发态,此时终端不发送SRS;当SRS触发信息为'01'时,终端需要根据第一组SRS参数的指示,在第一组SRS资源(包括时域、频域、码域资源) 上发送SRS;当SRS触发信息为'10'时,终端需要根据第二组SRS参数的指示,在第二组SRS资源上发送SRS;当SRS触发信息为'11'时,终端需要根据第三组SRS参数的指示,在第三组SRS资源(包括时域、频域、码域资源)上发送SRS。
以DCI formats 0/1A/2B/2C/2D举例来说,当SRS触发信息(即DCI formats 0/1A/2B/2C/2D中的“1比特”)为'0'时,表示SRS触发信息为非触发态,此时终端不发送SRS;当SRS触发信息为'1'时,终端需要根据高层RRC信令所配置的SRS参数的指示,在该SRS资源(包括时域、频域、码域资源)上发送SRS。
在CoMP(例如,NCJT)场景下,为了避免非理想回程(backhaul)情况下,例如信道状态信息(Channel State Information,CSI)、调度信息等信息通过X2接口在第一网络设备110和第二网络设备120间进行交互,可考虑采用第一网络设备110和第二网络设备120独立发送下行控制信息的方式进行独立调度。应理解,第一网络设备可以是终端130的服务网络设备,第二网络设备可以是终端130的协作网络设备,或者第一网络设备可以是终端130的协作网络设备,第二网络设备可以是终端130的服务网络设备。为了便于描述和理解,在下文的描述中,均以第一网络设备是终端130的服务网络设备,第二网络设备是终端130的协作网络设备为了进行举例说明。
第一网络设备110和第二网络设备120进行独立调度时,例如,第一网络设备可以发送第一DCI,第二网络设备可以发送第二DCI。此时,终端130可以在同一载波内同时接收到第一DCI和第二DCI。由于每个DCI内均包含SRS的触发信息,因此终端130可以同时接收到多个SRS的触发信息。以第一DCI包含第一SRS触发信息,第二DCI包含第二SRS触发信息为例,终端130可以同时接收到第一SRS触发信息和第二SRS触发信息。由于第一SRS触发信息和第二SRS触发信息有可能相同,也有可能不同,比如,第一SRS触发信息可能是'01',第二SRS触发信息可能是'11'。此时,终端130根据第一SRS触发信息和第二SRS触发信息,如何进行SRS的发送处理,即发送SRS还是不发送SRS还是在哪一个资源上发送,成为亟需解决的问题。
为此,本申请提出了一种传输方法,旨在解决终端如何根据同类参考信号的多个触发信息进行该类参考信号的处理的问题。下面以具体地实施例对本发明的技术方案进行详细说明。下面所涉及的具体的实施例可以相互结合,对于相同或相似的概念或过程可能在某些实施例不再赘述。
首先,对本申请实施例中所涉及到的一些通用概念或者定义做出解释,需要说明的是,本文中的一些英文简称为以LTE系统为例对本申请实施例进行的描述,其可能随着网络的演进发生变化,具体演进可以参考相应标准中的描述。
1)基本参数集(numerology):
通信系统所用的一套参数,包括子载波间隔,符号长度,CP长度等。在LTE/LTE-A中,子载波间隔(subcarrier spacing,SCS)是固定的15kHz,而在NR中SCS将会设为15*(2^n)kHz,其中n可以取负数。也就是说SCS可以设为3.75kHz、7.5kHz、15kHz、30kHz、60kHz、120kHz等等。而SCS的取值直接会影响符号在时域的长度(FFT基本原理)。
2)搜索空间(search space):
搜索空间可以包括:公共搜索空间(common search space)和UE专用搜索空间(UE-specific search space)。公共搜索空间用于传输小区级别的公共信息,例如可以包括: 与寻呼(paging)、随机接入响应(random access response,RAR)、广播控制信道(broadcast control channel,BCCH)等相关的控制信息;UE专用搜索空间用于传输终端(或者说,UE)级别的信息,例如可以包括:下行共享信道(downlink share channel,DL-SCH)、上行共享信道(unlink share channel,UL-SCH)等相关的控制信息。
应理解,公共搜索空间和UE专用搜索空间是LTE协议中定义的两类搜索空间,本申请中以UE专用搜索空间为例来说明,但这不应对本申请构成任何限定,本申请并不排除对搜索空间的重新划分或者重新定义的可能,只要是用于传输终端级别的信息的资源,均可以定义为本申请实施例中所述的UE专用搜索空间。
一个搜索空间是对某一CCE聚合等级定义的。一个终端设备可以有多个搜索空间,每个搜索空间中的CCEs可以是连续分布的,终端设备需监听一组PDCCH控制信道,这一组被监听的PDCCH控制信道可以称为“控制信道候选集(candidate control channel set)”,或者称“控制信道候选(PDCCH candidates)”。
表2示出了聚合等级L、可用的CCE个数(或者称,搜索空间大小)N
CCE,k和给定的搜索空间内需要监听的PDCCH candidate数目M
(L)的对应关系:
表2
可以看到,在不同的聚合等级下,搜索空间的大小不同,PDCCH候选数目也不同。并且,搜索空间的大小M=M
(L)·L,或者说,搜索空间所包含的CCE的数目为聚合等级与PDCCH候选数目的乘积。
应理解,表一仅为便于理解,结合LTE协议中定义的聚合等级L、搜索空间大小N
CCE,k和给定的搜索空间内需要监听的PDCCH candidate数目M
(L)说明了各参数之间的对应关系,但这不应对本发明实施例构成任何限定,本申请也并不排除在未来协议中对聚合等级L、搜索空间大小N
CCE,k和给定的搜索空间内需要监听的PDCCH candidate数目M
(L)之间的对应关系重新定义的可能,同时也不排除定义更多参数的可能。
3)聚合等级(aggregation level,AL):
表示一个PDCCH占用的连续CCE的个数。一个CCE由9个资源元素组(resource element group,REG)组成,一个REG由4个频域上连续的非参考信号(reference signal,RS)的资源粒子(resource element,RE)组成,即,一个CCE由36个RE组成。
4)控制资源集合(control resource set):
控制信道可以划分为多个控制资源集合,每个控制资源集合是一组REG的集合。终端设备可以在一个或多个控制资源集合上监听PDCCH。
在本发明实施例中,对于网络设备而言,控制资源集合可以理解为发送控制信道所占的资源;对于终端设备而言,每个终端设备的PDCCH的搜索空间都属于该控制资源集合。或者说,网络设备可以从该控制资源集合中确定发送PDCCH使用的资源,终端设备可以从该控制资源集合中确定PDCCH的搜索空间。其中,控制资源集合可以包括时频资源,例如,频域上可以是一段带宽,或者一个或者多个子带等;时域上可以是时间单元的个数,例如,子帧或者时隙或者微时隙中的符号个数;时频域上可以是连续或不连续的资源单元,例如,连续的资源块(resource block,RB)或者不连续的RB。
应理解,上述列举的频域资源、时域资源、时频域资源的具体内容仅为示例性说明,而不应对本发明实施例构成任何限定。例如,RB的定义可以为现有LTE协议中定义的资源,也可以为未来协议中定义的资源,或者,还可以使用其他的命名来替代。又例如,时间单元,可以是子帧,也可以是时隙(slot),还可以是无线帧、微时隙(mini slot或sub slot)、多个聚合的时隙、多个聚合的子帧、符号等等,甚至还可以是传输时间间隔(transmission time interval,TTI),本申请实施例对此并未特别限定。
本申请中的CoMP,包括但不限于联合传输JT。JT包括相干JT和非相干JT(non-coherent joint transmission,NCJT),两者的区别在于NCJT对来自多个协作TP的数据流分别做波束赋形,相干JT对来自多个协作TP的数据流做联合做波束赋形。
本申请中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
此外,可以理解的,本申请中术语“第一”和“第二”仅仅是为了描述和理解的方便,不应对本申请实施例构成任何限定。
以下,结合图3,详细说明根据本申请实施例的传输方法。
应理解,图3是本申请实施例的传输方法的示意性流程图,示出了该方法的详细的通信步骤或操作,但这些步骤或操作仅是示例,本申请实施例还可以执行其它操作或者图3中的各种操作的变形。此外,图3中的各个步骤可以分别按照与图3所呈现的不同的顺序来执行,并且有可能并非要执行图3中的全部操作。
图3示出了从设备交互的角度描述的根据本申请一实施例的传输方法的示意性流程图。
S310,终端接收至少一个网络设备发送的多个DCI。
以下,为了便于理解和区分,将上述终端接收的多个DCI记作:DCI#1~DCI#N,其中,N≥1。其中,每个DCI至少包括一类参考信号的触发信息。也就是说,每个DCI可以包括一类参考信号的触发信息,也可以包括多类参考信号的触发信息,本申请对此不作限定。以下,为了便于描述和理解,将DCI#1~DCI#N中的任一DCI所包括的至少一类参考信号的触发信息称为:第一触发信息;将该类参考信号,即第一触发信息对应的参考信号称为:第一参考信号。相应地,将所述多个DCI所包括的多个第一触发信息记作:第一触发信息#1~第一触发信息#N。其中,第一触发信息#1~第一触发信息#N与DCI#1~DCI#N一一对应,例如,第一触发信息#1可以是DCI#1所包括的第一触发信息,第一触发信息#2可以是DCI#2所包括的第一触发信息,依此类推,第一触发信息#N可以是DCI#N所包括的第一触发信息,这里,为了避免赘述,省略其详细说明。
应理解,所述多个DCI可以都是用于调度下行PDSCH的(也即DCL grant),也可以是用于调度上行PUSCH的UL grant。或者,所述多个DCI可以既有调度下行PDSCH的DL grant,也可以有调度上行PUSCH的UL grant,本申请实施例对此不作限定。
第一触发信息用于向终端指示第一参考信号所使用的资源和/或对所述第一参考信号的发送处理。具体来讲,终端对第一参考信号的发送处理可以为不发送第一参考信号或发送第一参考信号。在第一触发信息指示终端发送第一参考信号时,进一步地,第一触发信息还可以指示终端发送第一参考信号所使用的资源,或者也可以说,第一触发信息还可以指示一组或多组参数,所述一组或多组参数用于指示一组或多组资源。其中,一组参考可以指示一组资源,也可以指示多组资源,本申请对此不作限定。综上,第一触发信息可以指示终端不发送第一参考信号,或发送第一参考信号,或根据某些资源(包括一组或多组资源)或某些参数(包括一组或多组参数)发送第一参考信号。相应地,终端根据第一触发信息,可以确定不需要发送第一参考信号,或者发送第一参考信号,或者根据第一触发信息所指示的资源发送第一参考信号。需要说明的是,若第一触发信息仅仅指示终端发送第一参考信号,而未指示终端发送第一参考信号所使用的资源时,终端可以根据其他的信息,例如根据高层RRC信令为终端配置的发送第一参考信号时所使用的参数,确定发送第一参考信号所使用的资源。
应理解,第一触发信息可以通过指示一组或多组参数的索引,指示该一组或多组参数。或者也可以说,第一触发信息可以通过指示一组或多组资源的索引,指示该一组或多组资源。
可选地,第一触发信息可以是SRS触发信息,也可以是DMRS触发信息,还可以是CSI-RS触发信息。相应地,第一参考信号可以是SRS,也可以是DMRS,还可以是CSI-RS。应理解,第一参考信号还可以是除上述列举的参考信号之外的其他类型的参考信号,本申请实施例对第一参考信号的类型不作具体限定,相应地,也就不对第一触发信息作具体限定。
可选地,第一参考信号所使用的资源中的任一组资源可以包括下述中的至少一种:第一参考信号序列、时域资源、频域资源、基本参数集(numerology)、天线端口资源、所述第一参考信号序列所采用的预编码矩阵和梳尺结构。以第一参考信号为SRS为例,SRS所使用的一组资源可以包括下述中的一项或多项:SRS序列、时域资源、频域资源、基本参数集、SRS序列所采用的预编码矩阵和梳尺结构、天线端口资源。这里,SRS所使用的一组资源可以称为SRS资源(resource)。应理解,SRS资源可以与现有技术(例如LTE)中为SRS所配置的资源相同也可以不同,本申请实施例不作特殊限定。SRS资源与现有技术中RRC所配置的SRS参数相同时,SRS序列、时域资源、频域资源、梳尺结构具体可以参照现有技术,为了简洁,此处不再赘述。还应理解,这里所说的天线端口资源可以指发送第一参考信号的天线端口(port)。
应理解,所述每个DCI还可以包括除第一触发信息外的其他信息,比如,所述每个DCI还可以包括除第一参考信号外的其他一类或多类参考信号的触发信息,所述一类或多类参考信号的触发信息与一类或多类参考信号一一对应。举例来说,所述每个DCI还可以包括第二触发信息。第二触发信息用于向终端指示第二参考信号所使用的资源和/或对所述第二参考信号的发送处理。终端根据第二触发信息对第二参考信号的发送处理具体可以 是系统或协议规定的,或者系统预先设置的,终端对第二参考信号的发送处理可以与终端对第一参考信号的发送处理类似,也可以不同,本申请实施例对此不作具体限定。
可选地,第一触发信息#1~第一触发信息#N可以全部相同,也可以各不相同,也可以部分相同,本申请实施例对此不作限定。相应地,第一触发信息#1~第一触发信息#N所指示的资源可以全部相同,也可以各不相同,也可以部分相同,本申请实施例对此不作限定。
可选地,作为本申请的一个实施例,S310中的所述至少一个网络设备具体可以是终端的服务网络设备,即由终端的服务网络设备向终端发送DCI#1~DCI#N,相应地,终端接收DCI#1~DCI#N。结合图2举例来说,终端130的服务网络设备,即第一网络设备110可以向终端130发送DCI#1~DCI#N,相应地,终端130接收第一网络设备110发送的DCI#1~DCI#N。
可选地,作为本申请的一个实施例,S310中的所述至少一个网络设备具体可以是终端的协作网络设备,即由终端的协作网络设备向终端发送DCI#1~DCI#N,相应地,终端接收DCI#1~DCI#N。进一步地,可以由终端的一个协作网络设备发送DCI#1~DCI#N,也可以由多个协作网络设备发送DCI#1~DCI#N。在由多个协作网络设备发送DCI#1~DCI#N时,可以是一个协作网络设备发送一个DCI,也可以一个协作网络设备发送多个DCI,本申请不作具体限定。结合图2举例来说,终端130的协作网络设备,即第二网络设备120可以向终端130发送DCI#1~DCI#N,相应地,终端130接收第二网络设备120发送的DCI#1~DCI#N。
可选地,作为本申请的另一实施例,S310中的所述至少一个网络设备可以包括终端的服务网络设备和终端的协作网络设备。更进一步地,DCI#1~DCI#N与所述至少一个网络设备一一对应。也就是说,终端的服务网络设备和终端的协作网络设备分别向终端发送一个DCI。结合图2举例来说,终端130的服务网络设备110和协作网络设备120可以分别向终端发送第一DCI(即,DCI#1)和第二DCI(即,DCI#2),相应地,终端120可以同时接收DCI#1和DCI#2。在该情况下,终端的服务网络设备和终端的协作网络设备可以根据协议规定或者预定义的规则各自发送相应的DCI,也可以通过网络设备之间的接口(例如,X2接口)先进行交互,协商发送DCI。通过交互协商的方式,比如,终端的服务网络设备和终端的协作网络设备可以发送相同的第一触发信息;又如,终端的服务网络设备发送的第一触发信息可以触发终端发送/不发送第一参考信号,而终端的协作网络设备只能发送非触发状态的第一触发信息,即发送的第一触发信息指示终端不发送第一参考信号;再如,规定终端的协作网络发送的第一触发信息无效,即无论终端的协作网络设备发送的第一触发信息是否触发终端发送第一参考信号,均被终端视作无效的触发信息,终端不会根据该第一触发信息作任何处理。
应理解,本申请实施例对于所述多个DCI具体是服务网络设备发送的还是协作网络设备发送的,或者是二者分别发送的不作具体限定。
可选地,本申请实施例中的DCI#1~DCI#N都可以是DCI formats 0/4/1A,或者都可以是DCI formats 2B/2C/2D。应理解,此处仅以所列举的DCI formats为例进行说明,也可以应用于未来5G中的任意一种DCI format,本申请对的DCI#1~DCI#N的DCI format不作特殊限定。
S320,终端从多个第一触发信息中确定出目标第一触发信息。
具体来讲,即终端确定第一触发信息#1~第一触发信息#N中的目标触发信息。目标触发信息可以理解为终端认为有效的触发信息,在第一触发信息#1~第一触发信息#N中,除目标触发信息外的其它第一触发信息终端均认为是无效的。其中,目标触发信息的数量可以是一个也可以是多个,即,目标触发信息可以是第一触发信息#1~第一触发信息#N中的一个或多个第一触发信息,本申请对并未对目标触发信息的数量特别限定。
可选地,终端可以采用以下方式确定第一触发信息#1~第一触发信息#N中的目标第一触发信息。
方式一
终端将第一触发信息#1~第一触发信息#N中的一个指示终端发送第一参考信号的第一触发信息确定为所述目标第一触发信息。其为了便于理解和和区分,这里将所述唯一一个指示终端发送第一参考信号的第一触发信息记作:第一触发信息#W
具体而言,第一触发信息#1~第一触发信息#N中包括第一触发信息#W,第一触发信息#W用于指示终端发送第一参考信号,除第一触发信息#W外的第一触发信息#1~第一触发信息#N中的其余第一触发信息均用于指示终端不发送第一参考信号。在此情况下,终端将第一触发信息#W确定为目标第一触发信息。
应理解,第一触发信息#W,可以仅仅指示终端发送第一参考信号,也可以同时指示终端发送第一参考信号所对应的至少一组参数或所使用的至少一组资源。以第一参考信号为SRS,相应地,第一触发信息为SRS触发信息为例,假设DCI#W为DCI format 4,根据上文中的表1,在第一触发信息#W为'10'时,可以指示终端根据第二组SRS参数发送SRS;假设DCI#W为DCI formats 0/1A/2B/2C/2D,同样根据上文描述,第一触发信息#W可以指示终端根据RRC信令为该终端配置的一组SRS参数发送SRS。
可选地,第一触发信息#W为终端的服务网络设备发送的,或者为终端的协作网络设备发送的。这里,将携带所述第一触发信息#W的DCI记作DCI#W。
举例来说,在网络设备调度终端做NCJT时,终端的服务网络设备和协作网络设备中的每个网络设备发送DCI#1~DCI#N中的一个DCI,网络设备(包括终端的服务网络设备和协作网络设备)间可以通过X2接口交互,规定协作网络设备发送的DCI所包括的第一触发信息为非使能状态,即不触发终端发送第一参考信号,而服务网络设备发送的DCI所包括的第一触发信息可以触发终端发送第一参考信号,也可以为非使能状态。在此情况下,如果终端接收到的第一触发信息#1~第一触发信息#N均是非使能状态,则终端不发送第一参考信号;如果终端接收到触发终端发送第一参考信号的第一触发信息,则终端将该第一触发信息#W确定为目标第一触发信息。
应理解,本申请实施例中,也可以通过协议规定(不同要通过X2接口交互)服务网络设备和协作网络设备所发送的第一触发信息的使能状态,例如,可以规定协作网络设备只能发送非使能状态的第一触发信息,服务网络设备可以发送任一状态的第一触发信息,本申请实施例对此不作具体限定。为使本领域技术人员更清楚地理解该方案,以第一触发信息#1~第一触发信息#N为SRS#1~SRS#N,DCI#1~DCI#N均为DCI format 4为例,对该方案进行更详细的说明。
在网络设备调度终端做NCJT时,可以规定协作网络设备的SRS触发信息只能是'00',服务网络设备的SRS触发信息可以是'00'、'01'、'10'和'11'中的任一种。此时,如果终端接 收到的SRS#1~SRS#N均是'00',则终端不发送SRS;如果终端接收到的SRS#1~SRS#N中有触发终端发送SRS的SRS触发信息,则发送SRS,比如,在终端接收为'01'的SRS触发信息时,则根据第一组SRS参数发送SRS。
方式二
所述终端根据所述多个DCI所在的资源位置、聚合等级、加扰方式和所包括的第一指示信息中的至少一种,确定所述第一触发信息。
具体来讲,终端将目标DCI所包括的第一触发信息确定为目标第一触发信息,所述目标DCI满足下述条件中的至少一个条件:
(1)承载于目标资源位置;
(2)聚合等级为目标聚合等级;
(3)加扰方式为目标加扰方式;
(4)所包括的第一指示信息为目标第一指示信息。
举例来说,协议或者系统可以规定,终端只将满足上述条件(1)~(4)中任一条件或任意组合的第一触发信息作为有效的触发信息,而将不满足相应条件的第一触发信息认为是无效的触发信息。
可选地,网络设备可以通过高层信令或DCI,通知终端上述目标资源位置、目标聚合等级、目标加扰方式以及所述目标第一指示信息中的至少一种。
下面,针对上述所描述的各条件进行详细说明。
条件(1):
可选地,目标位置可以是目标搜索空间、目标控制信道候选集、目标载波和目标控制资源集合中的任一种。
作为本申请一个实施例,承载DCI#1~DCI#N的时频资源位于终端的至少一个搜索空间内。终端将在所述至少一个搜索空间中的目标搜索空间检测到的DCI所包括的第一触发信息确定为目标第一触发信息。
可选地,所述至少一个搜索空间与DCI#1~DCI#N一一对应,即每个搜索空间承载一个DCI。为了便于理解和描述,将终端的所述至少一个搜索空间记为搜索空间#1~搜索空间#N,搜索空间#1~搜索空间#N与DCI#1~DCI#N一一对应。终端将在搜索空间#1~搜索空间#N中的目标搜索空间(例如,记为搜索空间#J,1≤J≤N)检测到的DCI所包括的第一触发信息作为目标第一触发信息。可选地,搜索空间#1~搜索空间#N可以是预定义的或者预配置的。
进一步地,搜索空间#J与终端的服务网络设备对应,即,服务网络设备可以使用搜索空间#J内的时频资源,协作网络设备可以使用搜索空间#1~搜索空间#N中的其他搜索空间内的时频资源。在此情况下,终端可以在搜索空间#J内检测到服务网络设备发送的DCI,在其他搜索空间中检测到协作网络设备发送的DCI。或者,换句话说,终端在搜索空间#J内检测到的DCI为服务网络设备发送的,在其他搜索空间内检测到的DCI为协作网络设备发送的,终端将服务网络设备发送的DCI所包括的第一触发信息确定为目标第一触发信息。
作为本申请的另一实施例,DCI#1~DCI#N可以承载于同一搜索空间中的至少一个控制信道候选集上。终端将在所述至少一个控制信道候选集中的目标控制信道候选集检测到 的DCI所包括的第一触发信息确定为目标第一触发信息。
可选地,所述至少一个控制信道候选集与DCI#1~DCI#N一一对应,即每个控制信道候选集承载一个DCI。为了便于理解和描述,将所述至少一个控制信道候选集记为控制信道候选集#1~控制信道候选集#N,DCI#1~DCI#N与控制信道候选集#1~控制信道候选集#N一一对应。终端将在控制信道候选集#1~控制信道候选集#N中的目标控制信道候选集(例如,记为控制信道候选集#Q,1≤Q≤N)上检测到的DCI所包括的第一触发信息作为目标第一触发信息。可选地,控制信道候选集#1~控制信道候选集#N可以是预定义的或者预配置的。
进一步地,控制信道候选集#Q与终端的服务网络设备对应,即,服务网络设备在控制信道候选集#Q上发送的DCI,协作网络设备在控制信道候选集#1~控制信道候选集#N中的其他的控制信道候选集上发送的DCI。相应地,终端可以在控制信道候选集#Q上检测到服务网络设备发送的DCI,在其他控制信道候选集上检测到协作网络设备发送的DCI。或者,换句话说,终端在控制信道候选集#Q上检测到的DCI为服务网络设备发送的,在其他控制信道候选集上检测到的DCI为协作网络设备发送的,终端将服务网络设备发送的DCI所包括的第一触发信息确定为目标第一触发信息。
作为本申请的又一实施例,DCI#1~DCI#N可以承载于至少一个载波上。终端将在所述至少一个载波中的目标载波检测到的DCI所包括的第一触发信息确定为目标第一触发信息。
可选地,所述至少一个载波与DCI#1~DCI#N一一对应,即每个载波上发送一个DCI。为了便于理解和描述,将所述至少一个载波记为载波#1~载波#N,DCI#1~DCI#N与载波#1~载波#N一一对应。终端将在载波#1~载波#N中的目标载波(例如,记为载波#R,1≤R≤N)上检测到的DCI所包括的第一触发信息作为目标第一触发信息。可选地,载波#1~载波#N可以是预定义的或者预配置的。
进一步地,载波#R与终端的服务网络设备对应,即,服务网络设备在载波#R上发送的DCI,协作网络设备在载波#1~载波#N中的其他载波上发送的DCI。相应地,终端可以在载波#R上检测到服务网络设备发送的DCI,在其他载波上检测到协作网络设备发送的DCI。或者,换句话说,终端在载波#R上检测到的DCI为服务网络设备发送的,在其他载波上检测到的DCI为协作网络设备发送的,终端将服务网络设备发送的DCI所包括的第一触发信息确定为目标第一触发信息。
作为本申请的又一实施例,DCI#1~DCI#N可以承载于至少一个控制资源集合中。终端将在所述至少一个控制资源集合中的目标控制资源集合检测到的DCI所包括的第一触发信息确定为目标第一触发信息。
可选地,所述至少一个控制资源集合与DCI#1~DCI#N一一对应,即在每个控制资源集合中的资源上发送一个DCI。为了便于理解和描述,将所述至少一个控制资源集合记为控制资源集合#1~控制资源集合#N,DCI#1~DCI#N与控制资源集合#1~控制资源集合#N一一对应。终端将在控制资源集合#1~控制资源集合#N中的目标控制资源集合(例如,记为控制资源集合#V,1≤V≤N)上检测到的DCI所包括的第一触发信息作为目标第一触发信息。可选地,控制资源集合#1~控制资源集合#N可以是预定义的或者预配置的。
进一步地,控制资源集合#V与终端的服务网络设备对应,即,服务网络设备在控制 资源集合#R中的资源上发送的DCI,协作网络设备在控制资源集合#1~控制资源集合#N中的其他控制资源集合中的资源上发送的DCI。相应地,终端可以在控制资源集合#V中的资源上检测到服务网络设备发送的DCI,在其他控制资源集合中的资源上检测到协作网络设备发送的DCI。或者,换句话说,终端在控制资源集合#V中的资源上检测到的DCI为服务网络设备发送的,在其他控制资源集合中的资源上检测到的DCI为协作网络设备发送的,终端将服务网络设备发送的DCI所包括的第一触发信息确定为目标第一触发信息。
应理解,上述的搜索空间、控制信道候选集、控制资源集合载波仅示例性地说明了终端根据检测到的DCI的位置确定目标第一触发信息的方式,但这不应对本申请构成任何限定,本申请还可以采用其他方式定义或者区分DCI的位置,例如可以具体到时频资源位置、子载波间隔等,本申请实施例对此不作限定。
条件(2):
具体来讲,终端接收到的DCI#1~DCI#N是采用至少一个聚合等级所生成的。终端将采用所述至少一个聚合等级中的目标聚合的DCI所包括的第一触发信息确定为目标第一触发信息。
可选地,所述至少一个聚合等级与DCI#1~DCI#N一一对应,即不同的DCI是采用不同个聚合等级生成的。以下,为了便于理解和描述,将所述至少一个聚合等级记为聚合等级#1~聚合等级#N,聚合等级#1~聚合等级#N与DCI#1~DCI#N一一对应。终端可以将聚合等级为目标聚合等级(例如,记为聚合等级#S,1≤S≤N)的DCI所包括的第一触发信息作为目标第一触发信息。可选地,聚合等级#1~聚合等级#N可以是预定义的或者预配置的。
进一步地,聚合等级#S与终端的服务网络设备对应,即,服务网络设备根据聚合等级#S生成DCI#S,并向终端发送。在此情况下,终端将服务网络设备发送的DCI所包括的第一触发信息确定为目标第一触发信息。
条件(3):
具体来讲,DCI#1~DCI#N可以采用至少一个加扰方式进行加扰。终端将采用至少一个加扰方式中的目标加扰方式的DCI所包括的第一触发信息确定为目标第一触发信息。
可选地,所述至少一个加扰方式与DCI#1~DCI#N一一对应,即不同的DCI是采用不同的加扰方式生成的。以下,为了便于理解和描述,将所述至少一个加扰方式记为加扰方式#1~加扰方式#N,与DCI#1~DCI#N一一对应。终端在接收到DCI#1~DCI#N后,采用加扰方式#1~加扰方式#N分别对各自DCI进行解扰。若某一DCI可以通过目标解扰方式(例如,记为解扰方式#T,解扰方式#T与加扰方式#T对应,1≤T≤N)解扰,则将该DCI所包括的第一触发信息确定为目标触发信息。可选地,加扰方式#1~加扰方式#N可以是预定义的或者预配置的。
进一步地,在对DCI加扰时,可以采用终端标识(UE identity,UE ID)+小区标识(cell ID)进行循环冗余校验(cyclic redundancy check,CRC)加扰。UE ID例如可以是小区无线网络临时识别(cell radio network temporary identify,C-RNTI),小区ID例如可以是物理层小区ID(physical layer cell identity,PCI)。
可选地,加扰方式#T与终端的服务网络设备对应,即,服务网络设备根据加扰方式#T生成DCI#T,并向终端发送。在此情况下,终端能够根据解扰方式#T,解扰DCI#T,从而将DCI#T(即,服务网络设备发送的DCI)所包括的第一触发信息确定为目标第一触 发信息。
应理解,本申请实施例并不对加扰方式#1~加扰方式#N具体是何种加扰方式作具体限定,只要满足加扰方式#T与服务网络设备对应即可。还应理解,本申请实施例也不对UE ID和小区标识作特殊限定,上述所列举的UE ID和小区标识仅是示意性地说明。
条件(4):
具体来讲,DCI#1~DCI#N中的每个DCI可以包括第一指示信息。比如,第一指示信息可以是DCI中的一个比特位(1bit),该比特位可以为'1'或'0'。在本申请实施例中,可以规定或者预配置,终端将第一指示信息为目标第一指示信息,例如,将第一指示信息为'1'的DCI所包括的第一触发信息作为目标第一触发信息。
可选地,所述第一指示信息可以是第一触发信息的一部分。
可选地,第一指示信息可以用于指示对应的DCI是服务网络设备发送的还是协作网络设备发送的,例如,当该比特位为'0'时,表示对应的DCI为协作网络设备发送的,当该比特位为'1'时,表示对应的DCI为服务网络设备发送的。从而,终端将包括的第一指示信息为'1'的DCI所包括的第一触发信息作为目标第一触发信息,即终端将服务网络设备发送的DCI所包括的第一触发信息确定为目标第一触发信息。
应理解,上述条件(1)~(4)可以结合使用,此时,终端将满足条件(1)~(4)中任意组合的DCI中的第一触发信息确定为目标第一触发信息。对于条件(1)~(4)结合使用的情况,为了简洁,此处不再详述,具体地可以参照上述对条件(1)~(4)的描述。
方式三
终端首先确定DCI#1~DCI#N中的目标DCI(例如,并记作DCI#D,1≤J≤N);然后,将DCI#D中的第一触发信息确定为目标第一触发信息。
具体地,所述目标DCI是通过预定义的方式确定的或是通过网络设备之间交互的方式确定的。比如,预定义的方式或者网络设备之间交互的方式,规定目标DCI为由服务网络设备发送的DCI。终端只将由服务网络设备发送的DCI中的第一触发信息作为有效的触发信息,而忽略由协议网络设备发送的第一触发信息。在此情况下,终端需要区分哪个DCI为服务网络设备发送的,哪个DCI为协作网络设备发送的。以下,分两种情况对终端如何确定DCI#D进行详细说明。
情况一
协作网络设备发送的第一触发信息只能触发非使能状态,而服务网络设备发送的第一触发信息可以触发任意一种状态。
具体而言,协议可以规定或者网络设备之间通过协商确定,协作网络设备发送的第一触发信息只能触发非使能状态,例如,协作网络设备发送的第一触发信息只能是'00',而服务网络设备发送的第一触发信息可以触发任意一种状态,比如,服务网络设备发送的第一触发信息可以是'01'、'10'、'11'、'00'中的任一种。这样,终端可以根据第一触发信息是否触发发送第一参考信号,确定服务网络设备发送的DCI,从而也就确定了目标第一触发信息。需要说明的是,如果服务网络设备发送的第一触发信息为非使能状态,因为在此情况下终端不会发送第一参考信号,因此也就不需要确定哪一个DCI为服务网络设备发送的。
情况二
协作网络设备发送的第一触发信息可以触发任意一种状态。
在此情况下,在一种可能的实现方式中,终端可以根据检测到的DCI的位置、聚合等级、加扰方式、所包括的第二指示信息中的任一种确定DCI#D,从而确定目标第一触发信息。
具体而言,服务网络设备和协助网络设备可以在不同的资源位置、采用不同的聚合等级、采用不同的加扰方式以及根据不同的第二指示信息中的至少一种,发送DCI。系统或协议可以预先规定或者配置DCI信息,该DCI信息可以定义为服务网络设备发送的DCI的位置、聚合等级、加扰方式以及所包括的第二指示信息中的至少一种。因网络设备和终端侧均保存有该DCI信息,因此终端可以根据检测到的DCI#1~DCI#N中每个DCI的相应的位置、聚合等级、加扰方式以及所包括的第二指示信息中的至少一种,确定出由服务网络设备发送的DCI,即DCI#D。
应理解,第二指示信息可以用于指示对应的DCI是服务网络设备发送的还是协作网络设备发送的。例如,第二指示信息可以与第一指示信息相同,第二指示信息具体可以参照上文中对第一指示信息的描述,为了简洁,此处不再赘述。
可选地,终端根据检测到的DCI的位置确定DCI#D时,具体可以根据DCI所在的搜索空间、控制信道候选集或载波,确定DCI#D。
应理解,终端根据检测到的DCI的位置、聚合等级、加扰方式、所包括的第二指示信息中的任一种确定DCI#D的具体实现过程可以参照上文方式二中相应地描述,为了简洁,此处不再赘述。
还应理解,目标DCI也可以是协作网络设备发送的DCI,本申请实施例对此不作限定。
方式四
终端根据第一触发信息#1~第一触发信息#N的优先级确定目标第一触发信息。
具体而言,DCI#1~DCI#N可以包括第三指示信息,用于指示对应的DCI中的第一触发信息的优先级。比如,第三指示信息可以是DCI中的一个比特位(1bit),该比特位可以为'1'或'0','1'表示优先级高,'0'表示优先级低。终端根据第三指示信息,将优先级高的第一触发信息作为目标第一触发信息。
可选地,优先级高的第一触发信息,即目标第一触发信息可以是服务网络设备发送的。也就是说,服务网络设备发送的第一触发信息的优先级高于协作网络设备发送的第一触发信息。
方式五
终端将第一触发信息#1~第一触发信息#N均作为目标第一触发信息。也就是说,所有的第一触发信息均是有效的。
在此情况下,第一触发信息#1~第一触发信息#N可以相同,也可以不同,本申请实施例对此不作限定。
此外,该多个第一触发信息所对应的资源可以相同也可以不同,本申请实施例对此不作限定。更进一步地,该多个第一触发信息所对应的多组资源的预编码矩阵可以相同也可以不同。
S330,终端根据所述目标第一触发信息,进行所述第一参考信号的发送处理。
具体地,终端在确定目标第一触发信息后,根据目标第一触发信息不发送第一参考信 号;或者,根据目标第一触发信息所指示的资源/高层RRC信令所配置的资源,发送第一参考信号。
本申请实施例的传输方法,终端在接收到多个第一触发信息的情况下,能够从多个第一触发信息中确定出目标第一触发信息,进而根据目标第一触发信息进行第一参考信号的发送处理,从而能够解决了现有技术中终端在接收到多个第一触发信息后,对于第一触发信息理解不一致从而导致不知如何对第一参考信号处理的问题,进而能够提高系统性能。
可选地,本申请所涉及的需要预配置的信息,例如上文所描述的搜索空间、聚合等级等,可以通过例如无线资源控制(radio resource control,RRC)信令或媒体接入控制控制信令(media access control control element,MAC CE)等高层信令配置。
为使本领域技术人员更好地理解本申请,下面结合图2和图4,以第一触发信息为SRS触发信息为例,描述根据本申请一个具体实施例的传输方法。图4是根据本申请一个具体实施例的传输方法的示意性流程图。图4中的第一网络设备和第二网络设备可以分别对应于图2所示的第一网络设备110和第二网络设备120。其中,第一网络设备为终端的服务网络设备,第二网络设备为终端的协作网络设备。
S410,第一网络设备生成第一DCI。
具体地,第一DCI包括第一SRS触发信息,第一SRS触发信息用于触发终端根据第一组SRS参数发送SRS。
S420,第二网络设备生成第二DCI。
具体地,第二DCI包括第二SRS触发信息,第二SRS触发信息用于触发终端根据第二组SRS参数发送SRS,或第二触发信息用于指示终端不发送SRS。
S430,第一网络设备发送第一DCI。
S440,第二网络设备发送第二DCI。
应理解,步骤S410和S420可以同时执行,也可以不同时执行,本申请对S410和S420的先后顺序不作区分。相应地,步骤S430和S440可以同时执行,也可以不同时执行,本申请对S430和S440的先后顺序不作区分。另外,步骤S420和S430的执行也不分先后顺序。
S450,终端根据第一DCI和第二DCI确定目标SRS触发信息。
作为本申请一个实施例,终端可以根据检测到的第一DCI和第二DCI的位置、聚合等级或加扰方式等,可以确定第一DCI为第一网络设备,即终端的服务网络设备发送的DCI,第二DCI为第二网络设备,即终端的协作网络设备发送的DCI,进而将第一DCI确定为目标DCI,将目标DCI所述包括的第一SRS触发信息确定为目标SRS触发信息。
作为本申请的另一实施例,第一DCI包括第一指示信息#1,所述第一指示信息#1用于指示所述第一DCI为第一网络设备发送的,即终端的服务网络设备发送的;第二包括第一指示信息#2,所述第一指示信息#2用于指示所述第二DCI为第二网络设备发送的,即终端的协作网络设备发送的。从而,终端根据第一指示信息#1和第一指示信息#2,将第一SRS触发信息确定为目标SRS触发信息。
S460,终端根据目标SRS触发信息,发送SRS。
具体地,终端根据第一组SRS参数,发送SRS。比如,终端根据第一组SRS参数,可以确定SRS序列、发送SRS的时域资源和频域资源、天线端口资源、SRS序列所采用 的预编码矩阵和梳尺结构等,进而根据所确定的上述参数发送SRS。
因此,根据本申请实施例的传输方法,终端能够接收到多个SRS触发信息(例如第一SRS触发信息和第二SRS触发信息)的情况下,进行SRS触发信息的发送处理,解决了现有技术中终端在接收到多个SRS触发信息后,终端对于SRS的发送处理理解不一致的问题,从而能够提高系统性能。
以上,结合图3和图4详细说明了本申请实施例的传输方法。以下,结合图5至图8详细说明本申请实施例的终端和网络设备。
图5是本申请实施例提供的终端500的示意性框图。如图5所示,该终端500包括:收发单元510和处理单元520。
其中,收发单元510,用于接收多个下行控制信息DCI,所述DCI至少包括与其一一对应的第一触发信息,所述第一触发信息用于向终端指示第一参考信号所使用的资源和/或对所述第一参考信号的发送处理;处理单元520,用于从多个第一触发信息中确定出目标第一触发信息;所述收发单元510还用于,根据所述目标第一触发信息,进行所述第一参考信号的发送处理。
可选地,所述处理单元520具体用于:
将所述多个第一触发信息中的一个指示所述终端发送所述第一参考信号的第一触发信息,确定为所述目标第一触发信息。
可选地,所述处理单元520具体用于:
根据所述多个DCI所在的资源位置、聚合等级、加扰方式和所包括的第一指示信息中的至少一种,确定所述第一触发信息。可选地,所述处理单元520具体用于:
从所述多个DCI中确定出目标DCI,所述目标DCI是通过预定义的方式确定的或是通过网络设备之间交互的方式确定的;
将所述目标DCI所包括的第一触发信息确定为所述目标第一触发信息。
可选地,所述处理单元520具体用于:
根据所述多个DCI所在的资源位置、聚合等级、加扰方式和所包括的第一指示信息中的至少一种,确定所述目标DCI。
可选地,所述目标资源位置为下述中的任一种:
目标搜索空间、目标控制信道候选集和目标控制资源集合。
可选地,所述第一参考信号所使用的资源包括第一参考信号序列、时域资源、频域资源、基本参数集、第一参考信号序列所采用的预编码矩阵以及梳尺结构中的至少一种。
应理解,终端500可以对应于根据本申请实施例的传输方法中的终端,该终端500可以包括用于执行图3和图4所示的方法中的终端执行的方法的单元。并且,该终端500中的各单元和上述其他操作和/或功能分别为了实现图3和图4所示的方法的相应流程,具体地,收发单元510用于执行图3所示的方法中的S310和S330,处理单元520用于执行图3所示的方法中的S320;收发单元510还用于执行图4所示的方法中的S430、S440和S460,处理单元520用于执行图4所示的方法中的S450。各单元执行上述相应步骤的具体过程在上文中已经详细说明,为了简洁,在此不再赘述。
图6是本申请实施例提供的网络设备600的示意性框图。如图6所示,该600包括:处理单元610和收发单元620。
处理单元610,用于确定多个下行控制信息DCI的至少一个DCI,所述DCI至少包括第一触发信息,所述第一触发信息用于向终端指示第一参考信号所使用的资源和/或对所述第一参考信号的发送处理,所述多个DCI用于所述终端确定多个第一触发信息中的目标第一触发信息,所述目标第一触发信息用于终端确定对第一参考信号的发送处理,所述多个DCI与所述多个第一触发信息一一对应;收发单元620,用于向所述终端发送所述至少一个DCI。
可选地,所述至少一个DCI是通过预定义的方式或是通过与为所述终端服务的其他网络设备之间交互的方式确定的。
可选地,所述DCI还包括第一指示信息,所述第一指示信息用于指示所述网络设备为所述终端的服务网络设备或协作网络设备。
可选地,所述网络设备为所述终端的协作网络设备,所述至少一个DCI所包括的至少一个第一触发信息用于指示所述终端不发送所述第一参考信号。
可选地,所述多个第一触发信息相同。
应理解,网络设备600可以对应于根据本发明实施例的传输方法中的网络设备,该网络设备600可以包括用于执行图3所示的方法中的网络设备执行的方法的单元,或图4所示的方法中的第一网络设备和/或第二网络设备执行的方法的单元。并且,该网络设备600中的各单元和上述其他操作和/或功能分别为了实现图3和图4所示的方法的相应流程,具体地,收发单元620用于执行图3所示的方法中的S310;收发单元620还用于执行图4所示的方法中的S430、S440和S460,处理单元610用于执行图4所示的方法中的S410和S420。各单元执行上述相应步骤的具体过程在上文中已经详细说明,为了简洁,在此不再赘述。
图7是本申请实施例提供的终端700的另一示意性框图。如图7所示,该终端700包括处理器710和收发器720,可选的,该终端700还包括存储器730。其中,其中,处理器710、收发器720和存储器730之间通过内部连接通路互相通信,传递控制和/或数据信号,该存储器730用于存储计算机程序,该处理器710用于从该存储器730中调用并运行该计算机程序,以控制该收发器720收发信号。当存储器730中存储的程序指令被处理器710执行时,该收发器720用于接收多个下行控制信息DCI,所述DCI至少包括与其一一对应的第一触发信息,所述第一触发信息用于向终端指示第一参考信号所使用的资源和/或对所述第一参考信号的发送处理;该处理器710用于从多个第一触发信息中确定出目标第一触发信息;该收发器720还用于根据所述目标第一触发信息,进行所述第一参考信号的发送处理。
上述处理器710和存储器730可以合成一个处理装置,处理器710用于执行存储器730中存储的程序代码来实现上述功能。具体实现时,该存储器730也可以集成在处理器710中,或者独立于处理器710。
上述终端还可以包括天线740,用于将收发器720输出的下行数据或下行控制信令通过无线信号发送出去。具体地,该终端700可对应于根据本申请实施例的传输方法中的终端,该终端700可以包括用于执行图3和图4所示的方法中终端执行的方法的单元。并且,该终端700中的各单元和上述其他操作和/或功能分别为了实现图3和图4所示的方法的相应流程,具体地,该存储器730用于存储程序代码,使得处理器710在执行该程序代码 时,执行图3所示的方法中的S320,执行图4所示的方法中的S450,并控制该收发器720通过天线740执行图3所示的方法中的S310和S330,执行图4所示的方法中的S430、S440和S460。各单元执行上述相应步骤的具体过程上述方法中已经详细说明,为了简洁,在此不再赘述。
图8是本申请实施例提供的网络设备800的另一示意性框图。如图8所示,该网络设备800包括处理器801和收发器802,可选地,该网络设备800还包括存储器803。其中,其中,处理器802、收发器802和存储器803之间通过内部连接通路互相通信,传递控制和/或数据信号,该存储器803用于存储计算机程序,该处理器801用于从该存储器803中调用并运行该计算机程序,以控制该收发器802收发信号。
当存储器803中存储的程序指令被处理器801执行时,该处理器801用于确定多个下行控制信息DCI的至少一个DCI,所述DCI至少包括第一触发信息,所述第一触发信息用于向终端指示第一参考信号所使用的资源和/或对所述第一参考信号的发送处理,所述多个DCI用于所述终端确定多个第一触发信息中的目标第一触发信息,所述目标第一触发信息用于终端确定对第一参考信号的发送处理,所述多个DCI与所述多个第一触发信息一一对应;该收发器802用于向所述终端发送所述至少一个DCI。
上述处理器801和存储器803可以合成一个处理装置,处理器801用于执行存储器803中存储的程序代码来实现上述功能。具体实现时,该存储器803也可以集成在处理器801中,或者独立于处理器801。上述网络设备800还可以包括天线804,用于将收发器802输出的上行数据或上行控制信令通过无线信号发送出去。
具体地,该网络设备800可对应于根据本申请实施例的传输方法中的网络设备,该网络设备800可以包括用于执行图3所示的方法中的网络设备执行的方法的单元,或图4所示的方法中的第一网络设备和/或第二网络设备执行的方法的单元。并且,该网络设备800中的各单元和上述其他操作和/或功能分别为了实现图3和图4所示的方法的相应流程,具体地,该存储器803用于存储程序代码,使得处理器801在执行该程序代码时,执行图4所示的方法中的S410和S420,并控制该收发器802通过天线804执行图4所示的方法中的S430、S440和S460,或者执行图3所示的方法中的S310。各单元执行上述相应步骤的具体过程在上文中已经详细说明,为了简洁,在此不再赘述。
上述处理器801可以用于执行前面方法实施例中描述的由网络设备内部实现的动作,而收发器802可以用于执行前面方法实施例中描述的网络设备向终端传输或者发送的动作。具体请见前面方法实施例中的描述,此处不再赘述。
上述处理器801和存储器803可以集成为一个处理装置,处理器801用于执行存储器803中存储的程序代码来实现上述功能。具体实现时,该存储器803也可以集成在处理器801中。
上述网络设备800还可以包括电源805,用于给网络设备中的各种器件或电路提供电源。
除此之外,为了使得网络设备的功能更加完善,该网络设备800还可以包括输入单元806,显示单元807,音频电路808,摄像头809和传感器810等中的一个或多个,所述音频电路还可以包括扬声器8082,麦克风8084等。
应理解,本申请实施例中,该处理器可以为中央处理单元(central processing unit, CPU),该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现成可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。
还应理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的随机存取存储器(random access memory,RAM)可用,例如静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。
上述实施例,可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时,上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载或执行所述计算机程序指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质。半导体介质可以是固态硬盘。
应理解,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的 划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (22)
- 一种传输方法,其特征在于,包括:终端接收多个下行控制信息DCI,所述DCI至少包括与其一一对应的第一触发信息,所述第一触发信息用于向终端指示第一参考信号所使用的资源和/或对所述第一参考信号的发送处理;所述终端从多个第一触发信息中确定出目标第一触发信息;所述终端根据所述目标第一触发信息,进行所述第一参考信号的发送处理。
- 如权利要求1所述的方法,其特征在于,所述终端从多个第一触发信息中确定出目标第一触发信息,包括:所述终端将所述多个第一触发信息中的一个指示所述终端发送所述第一参考信号的第一触发信息,确定为所述目标第一触发信息。
- 如权利要求1或2所述的方法,其特征在于,所述终端从多个第一触发信息中确定出目标第一触发信息,包括:所述终端根据所述多个DCI所在的资源位置、聚合等级、加扰方式和所包括的第一指示信息中的至少一种,确定所述第一触发信息。
- 如权利要求1或2所述的方法,其特征在于,所述终端从多个第一触发信息中确定出目标第一触发信息,包括:所述终端从所述多个DCI中确定出目标DCI,所述目标DCI是通过预定义的方式确定的或是通过网络设备之间交互的方式确定的;所述终端将所述目标DCI所包括的第一触发信息确定为所述目标第一触发信息。
- 如权利要求4所述的方法,其特征在于,所述终端从所述多个DCI中确定出目标DCI,包括:所述终端根据所述多个DCI所在的资源位置、聚合等级、加扰方式和所包括的第一指示信息中的至少一种,确定所述目标DCI。
- 如权利要求3或5所述的方法,其特征在于,所述资源位置为下述中的任一种:搜索空间、控制信道候选集和控制资源集合。
- 如权利要求1至6中任一项所述的方法,其特征在于,所述第一参考信号所使用的资源包括第一参考信号序列、时域资源、频域资源、基本参数集、天线端口资源、第一参考信号序列所采用的预编码矩阵以及梳尺结构中的至少一种。
- 一种传输方法,其特征在于,包括:网络设备确定多个下行控制信息DCI的至少一个DCI,所述DCI至少包括第一触发信息,所述第一触发信息用于向终端指示第一参考信号所使用的资源和/或对所述第一参考信号的发送处理,所述多个DCI用于所述终端确定多个第一触发信息中的目标第一触发信息,所述目标第一触发信息用于终端确定对第一参考信号的发送处理,所述多个DCI与所述多个第一触发信息一一对应;所述网络设备向所述终端发送所述至少一个DCI。
- 如权利要求8所述的方法,其特征在于,所述至少一个DCI是通过预定义的方式 或是通过与为所述终端服务的其他网络设备之间交互的方式确定的。
- 如权利要求8或9所述的方法,其特征在于,所述DCI还包括第一指示信息,所述第一指示信息用于指示所述DCI为所述终端的服务网络设备发送的或协作网络设备发送的。
- 如权利要求8至10中任一项所述的方法,其特征在于,所述网络设备为所述终端的协作网络设备,所述至少一个DCI所包括的至少一个第一触发信息用于指示所述终端不发送所述第一参考信号。
- 一种终端,其特征在于,包括:收发器,用于接收多个下行控制信息DCI,所述DCI至少包括与其一一对应的第一触发信息,所述第一触发信息用于向终端指示第一参考信号所使用的资源和/或对所述第一参考信号的发送处理;处理器,用于从多个第一触发信息中确定出目标第一触发信息;所述收发器还用于,根据所述目标第一触发信息,进行所述第一参考信号的发送处理。
- 如权利要求12所述的终端,其特征在于,所述处理器具体用于:将所述多个第一触发信息中的一个指示所述终端发送所述第一参考信号的第一触发信息,确定为所述目标第一触发信息。
- 如权利要求12或13所述的终端,其特征在于,所述处理器具体用于:根据所述多个DCI所在的资源位置、聚合等级、加扰方式和所包括的第一指示信息中的至少一种,确定所述第一触发信息。
- 如权利要求12或13所述的终端,其特征在于,所述处理器具体用于:从所述多个DCI中确定出目标DCI,所述目标DCI是通过预定义的方式确定的或是通过网络设备之间交互的方式确定的;将所述目标DCI所包括的第一触发信息确定为所述目标第一触发信息。
- 如权利要求15所述的终端,其特征在于,所述处理器具体用于:根据所述多个DCI所在的资源位置、聚合等级、加扰方式和所包括的第一指示信息中的至少一种,确定所述目标DCI。
- 如权利要求14或16所述的终端,其特征在于,所述资源位置为下述中的任一种:目搜索空间、控制信道候选集和控制资源集合。
- 如权利要求12至16中任一项所述的终端,其特征在于,所述第一参考信号所使用的资源包括第一参考信号序列、时域资源、频域资源、基本参数集、天线端口资源、第一参考信号序列所采用的预编码矩阵以及梳尺结构中的至少一种。
- 一种网络设备,其特征在于,包括:处理器,用于确定多个下行控制信息DCI的至少一个DCI,所述DCI至少包括第一触发信息,所述第一触发信息用于向终端指示第一参考信号所使用的资源和/或对所述第一参考信号的发送处理,所述多个DCI用于所述终端确定多个第一触发信息中的目标第一触发信息,所述目标第一触发信息用于终端确定对第一参考信号的发送处理,所述多个DCI与所述多个第一触发信息一一对应;发送器,用于向所述终端发送所述至少一个DCI。
- 如权利要求19所述的网络设备,其特征在于,所述至少一个DCI是通过预定义 的方式或是通过与为所述终端服务的其他网络设备之间交互的方式确定的。
- 如权利要求19或20所述的网络设备,其特征在于,所述DCI还包括第一指示信息,所述第一指示信息用于指示所述DCI为所述终端的服务网络设备发送的或协作网络设备发送的。
- 如权利要求19至21中任一项所述的网络设备,其特征在于,所述网络设备为所述终端的协作网络设备,所述至少一个DCI所包括的至少一个第一触发信息用于指示所述终端不发送所述第一参考信号。
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US11444731B2 (en) | 2022-09-13 |
EP3598815A1 (en) | 2020-01-22 |
CN108882382B (zh) | 2020-04-21 |
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EP3598815B1 (en) | 2025-07-30 |
US20200076554A1 (en) | 2020-03-05 |
CN108882382A (zh) | 2018-11-23 |
EP3598815A4 (en) | 2020-04-15 |
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