WO2023197171A1 - 传输同步方法及装置、存储介质 - Google Patents
传输同步方法及装置、存储介质 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- the present disclosure relates to the field of communications, and in particular to transmission synchronization methods and devices, and storage media.
- version 17 (Release 17, R17) only supports multicast broadcast service (MBS) synchronization in the intra-Distributed Unit (intra-DU) scenario, that is, for single-frequency networks (Single- Frequency Network, SFN) MBS synchronization.
- MBS multicast broadcast service
- embodiments of the present disclosure provide a transmission synchronization method and device, and a storage medium.
- a transmission synchronization method is provided, and the method is applied to a second network side node, including:
- the PDCCH transmission synchronization includes at least one of the following:
- the PDCCH transmission corresponding to the MBS transmission channel MTCH transmission is synchronized
- the PDCCH transmission corresponding to the MBS control channel MCCH transmission is synchronized
- the PDCCH transmission corresponding to the MCCH change notification information is synchronized
- PDCCH transmission corresponding to resource scheduling is synchronized.
- the MTCH transmission includes at least one of the following:
- the resource scheduling corresponds to any of the following scheduling methods:
- Resource scheduling information is carried through downlink control information DCI;
- sending synchronization control information to at least one first network side node includes:
- the synchronization control information is sent to at least one first network side node through inter-node signaling.
- the PDCCH transmission synchronization includes at least one of the following:
- the DCI transmission content synchronization includes DCI transmission information synchronization; or,
- the DCI transmission content synchronization includes DCI format synchronization and DCI transmission information synchronization.
- the DCI transmission resources include at least one of the following:
- Time domain resources frequency domain resources, air domain resources, coding methods and parameter set numerology.
- the method also includes:
- the configuration information is used to indicate at least one of the following:
- DCI synchronization is performed in each scheduled time slot
- a service synchronization method is provided, and the method is applied to a first network side node and includes:
- the PDCCH transmission synchronization is performed.
- the PDCCH transmission synchronization includes at least one of the following:
- the PDCCH transmission corresponding to the MBS transmission channel MTCH transmission is synchronized
- the PDCCH transmission corresponding to the MBS control channel MCCH transmission is synchronized
- the PDCCH transmission corresponding to the MCCH change notification information is synchronized
- PDCCH transmission corresponding to resource scheduling is synchronized.
- the MTCH transmission includes at least one of the following:
- the resource scheduling corresponds to any of the following scheduling methods:
- Resource scheduling information is carried through downlink control information DCI;
- the receiving the synchronization control information sent by the second network side node includes:
- the PDCCH transmission synchronization includes at least one of the following:
- the DCI transmission content synchronization includes DCI transmission information synchronization; or,
- the DCI transmission content synchronization includes DCI format synchronization and DCI transmission information synchronization.
- the DCI transmission resources include at least one of the following:
- Time domain resources frequency domain resources, air domain resources, coding methods and parameter set numerology.
- the method also includes:
- a period for DCI synchronization is determined.
- the configuration information is used to indicate at least one of the following:
- DCI synchronization is performed in each scheduled time slot
- a transmission synchronization device is provided, and the device is applied to a second network side node and includes:
- a sending module configured to send synchronization control information to at least one first network side node; wherein the synchronization control information is used to control at least one of the first network side nodes to perform physical downlink control channel PDCCH transmission synchronization, and the PDCCH Corresponds to the multicast broadcast service MBS.
- a transmission synchronization device is provided, and the device is applied to a first network side node and includes:
- a receiving module configured to receive synchronization control information sent by the second network side node; wherein the synchronization control information is used to control at least one of the first network side nodes to perform physical downlink control channel PDCCH transmission synchronization, the PDCCH and Multicast broadcast service MBS corresponds;
- a synchronization module configured to perform the PDCCH transmission synchronization based on the synchronization control information.
- a computer-readable storage medium stores a computer program, and the computer program is used to execute the transmission synchronization method described in any one of the above-mentioned first aspects.
- a computer-readable storage medium stores a computer program, and the computer program is used to execute the transmission synchronization method described in any one of the above second aspects.
- a transmission synchronization device including:
- Memory used to store instructions executable by the processor
- the processor is configured to execute the executable instructions to implement the steps of the transmission synchronization method described in any one of the above first aspects.
- a transmission synchronization device including:
- Memory used to store instructions executable by the processor
- the processor is configured to execute the executable instructions to implement the steps of the transmission synchronization method described in any one of the above second aspects.
- the present disclosure can control at least one first network side node by the second network side node to achieve PDCCH transmission synchronization corresponding to the MBS, realize MBS synchronization under the NR system, support wide area service deployment, expand SFN transmission scenarios, and improve cell edge Performance and spectrum utilization, high availability.
- Figure 1 is a schematic flowchart of a transmission synchronization method according to an exemplary embodiment.
- Figure 2 is a schematic flowchart of another transmission synchronization method according to an exemplary embodiment.
- Figure 3 is a schematic flowchart of another transmission synchronization method according to an exemplary embodiment.
- Figure 4 is a schematic flowchart of another transmission synchronization method according to an exemplary embodiment.
- Figure 5 is a block diagram of a transmission synchronization device according to an exemplary embodiment.
- Figure 6 is a block diagram of another transmission synchronization device according to an exemplary embodiment.
- FIG. 7 is a schematic structural diagram of a transmission synchronization device according to an exemplary embodiment of the present disclosure.
- FIG. 8 is a schematic structural diagram of another transmission synchronization device according to an exemplary embodiment of the present disclosure.
- first, second, third, etc. may be used in this disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
- first information may also be called second information, and similarly, the second information may also be called first information.
- word “if” as used herein may be interpreted as "when” or “when” or “in response to determining.”
- MBS services can be marked by MBS service identifiers.
- MBS service identifiers include at least one of the following: Temporary mobile group identifier (Temporary Mobile Group Identity, TMGI), MBS session ID (MBS Session ID), MBS business flow ID (MBS QoS flow ID).
- the transmission modes of MBS services include the following two:
- the terminal In transmission mode one (multicast transmission), the terminal enters the radio resource control connected state (RRC_CONNECTED) to receive the transmission configuration information of the MBS service, so that it can receive the MBS service.
- the network side device sends the reception configuration information of the MBS service to the terminal through terminal-specific signaling.
- the terminal can receive the transmission configuration information of the MBS service in the idle state (IDLE), the inactive state (INACTIVE), or the connected state (CONNECTED), and receive the MBS service.
- the network side device sends the MBS service reception configuration information to the terminal through system information and MBS Control Channel (MBS Control Channel, MCCH) information.
- the system information can be a System Information Block (SIB).
- the present disclosure provides the following transmission synchronization method, device and storage medium.
- the transmission synchronization method provided by the present disclosure will be introduced below from the second network side node side.
- FIG. 1 is a flow chart of a transmission synchronization method according to an embodiment, which can be used for a second network side node, wherein the second network side
- the node may be a base station, a centralized unit (Centralized Unit, CU), a distributed unit (Distributed Unit, DU), or a network side node independent of the above-mentioned nodes, such as an MBS master control node.
- This disclosure does not limit this.
- the method may include Following steps:
- step 101 synchronization control information is sent to at least one first network side node.
- the first network side node may be a CU or a DU.
- the synchronization control information is used to control at least one of the first network side nodes to perform physical downlink control channel (Physical Downlink Control Channel, PDCCH) transmission synchronization, and the PDCCH corresponds to the multicast broadcast service MBS.
- PDCCH Physical Downlink Control Channel
- the method may be applied in NR or post-NR communication systems.
- the second network side node can control at least one first network side node to achieve PDCCH transmission synchronization corresponding to the MBS, realize MBS synchronization under the NR system, support wide area service deployment, expand SFN transmission scenarios, and improve Improved cell edge performance and spectrum utilization, high availability.
- PDCCH transmission synchronization includes at least one of the following: PDCCH transmission synchronization corresponding to MBS Transmission Channel (MBS Transmission Channel, MTCH) transmission; PDCCH transmission synchronization corresponding to MBS Control Channel (MBS Control Channel, MCCH) transmission ; PDCCH transmission synchronization corresponding to MCCH change notification information; PDCCH transmission synchronization corresponding to resource scheduling.
- MBS Transmission Channel MBS Transmission Channel
- MCCH MBS Control Channel
- the MTCH transmission includes at least one of the following: MTCH transmission corresponding to the multicast service; MTCH transmission corresponding to the broadcast service.
- resource scheduling corresponds to any of the following scheduling methods: carrying resource scheduling information through downlink control information (DCI); activating or deactivating predetermined resource scheduling information through DCI.
- DCI downlink control information
- the second network side node may send the synchronization control information to at least one of the first network side nodes through inter-node signaling, thereby realizing PDCCH transmission corresponding to the MBS. Synchronize.
- PDCCH transmission synchronization includes at least one of the following: DCI transmission content synchronization; DCI transmission resource synchronization.
- DCI transmission content synchronization includes DCI transmission information synchronization. It should be noted that this means that the default PDCCH uses the same DCI format to transmit the DCI.
- DCI transmission content synchronization includes DCI format synchronization and DCI transmission information synchronization.
- DCI transmission resources include at least one of the following: time domain resources, frequency domain resources, air domain resources, coding methods and parameter sets (numerology).
- the numerology corresponds to an SCS (SubCarrier Spacing) in the frequency domain.
- time domain resources include but are not limited to at least one of the following: Searching Space (SS), System Frame Number (SFN), subframe, and time slot (slot) , period, starting position.
- SS Searching Space
- SFN System Frame Number
- Slot time slot
- Frequency domain resources include but are not limited to at least one of the following: Control Resource Set (CORESET), frequency, bandwidth, reference point A (point-A), partial bandwidth (Bandwidth Part, BWP) ), cell identifier (Cell-ID), physical cell identifier (Physical Cell Identifier, PCI).
- CORESET Control Resource Set
- point-A reference point A
- BWP partial bandwidth
- BWP Bandwidth Part
- Cell-ID cell identifier
- PCI Physical Cell Identifier
- Airspace resources include but are not limited to Transmission Configuration Index (TCI) status, such as related synchronization signal blocks (Synchronization Signal and PBCH block, SSB), Channel State Information Reference Signal (Channel State Information-Reference Signal, CSI-RS) .
- TCI Transmission Configuration Index
- SSB Synchronization Signal and PBCH block
- CSI-RS Channel State Information Reference Signal
- Coding methods include but are not limited to Radio Network Temporary Identity (RNTI), DCI format, Demodulation Reference Signal (DMRS), scrambling code, etc.
- RNTI Radio Network Temporary Identity
- DMRS Demodulation Reference Signal
- scrambling code etc.
- the second network side node can control at least one first network side node to achieve PDCCH transmission synchronization corresponding to the MBS, realize MBS synchronization under the NR system, support wide area service deployment, expand SFN transmission scenarios, and improve Improved cell edge performance and spectrum utilization, high availability.
- Figure 2 is a flow chart of a transmission synchronization method according to an embodiment, which can be used for a second network side node, where the second network side node can be a base station. , CU, DU or a network-side node independent of the above-mentioned nodes, such as the MBS master control node.
- the method may include the following steps:
- step 201 configuration information is sent to at least one first network side node.
- the configuration information is used to configure a period for DCI synchronization.
- the configuration information is used to indicate at least one of the following: DCI synchronization in each scheduling time slot; DCI synchronization in a designated scheduling time slot.
- the configuration information when the configuration information is used to indicate DCI synchronization in a designated scheduling time slot, if the first network side node performs DCI synchronization in a certain designated scheduling time slot, there is no need to perform DCI synchronization in other designated scheduling time slots. , just reuse the previously synchronized DCI.
- step 201 can be implemented alone or in combination with the above-mentioned step 101.
- the present disclosure does not limit the execution order of step 101 and step 201, that is, step 101 can be executed before step 201. , can also be executed after step 201. In addition, execution at the same time is also possible.
- the second network side node may configure a period for DCI synchronization for the first network side node, so as to control at least one first network side node to perform PDCCH transmission synchronization corresponding to the MBS.
- the implementation is simple and the usability is high.
- the configuration information in this disclosure can be used to indicate that DCI synchronization is performed in a designated scheduling time slot. DCI sync.
- the configuration information is used to indicate DCI synchronization based on a predefined or preconfigured period.
- the configuration information includes one or more bitmaps, that is, the configuration information is used to indicate DCI synchronization on a designated scheduling time slot in each designated period.
- the designated scheduling time slot is at least one scheduling time slot whose bit value in the bitmap is a preset value.
- the preset value may be 1 or 0, which is not limited in this disclosure.
- the designated scheduling time slots are the 1st, 3rd, 5th, and 7th scheduling time slots, and the first network side node will ), DCI synchronization is performed on the 1st, 3rd, 5th, and 7th scheduling time slots.
- the first network side node performs DCI synchronization on the first scheduling time slot, it can directly multiplex the synchronized DCI on the 3rd, 5th, and 7th scheduling time slots.
- the configuration information includes two bitmaps, respectively 010101010 and 110101010.
- the default value is 1, then the designated scheduling time slots are the 0th, 1st, 3rd, 5th, and 7th scheduling time slots.
- the first network side node Within a specified period (for example, 10 milliseconds), DCI synchronization is performed on the 0th, 1st, 3rd, 5th, and 7th scheduling time slots. And after the first network side node performs DCI synchronization on the 0th scheduling time slot, it can directly multiplex the synchronized DCI on the 1st, 3rd, 5th, and 7th scheduling time slots.
- the configuration information is used to indicate a reference time point or a reference period.
- the first network side node may perform DCI synchronization on at least one scheduling time slot before or after the reference time point.
- the configuration information is used to indicate a reference period
- the first network side node may perform DCI synchronization on at least one scheduling time slot within the reference period.
- the first network side node performs DCI synchronization in a certain designated scheduling time slot, there is no need to perform DCI synchronization in other designated scheduling time slots, and the previously synchronized DCI can be directly reused.
- the reference time point or reference period includes but is not limited to an absolute time point or absolute time period, SFN index, subframe index, and timeslot index.
- the first network side node when the reference period is an absolute time period, performs DCI synchronization in at least one time slot included in the absolute time period.
- the at least one time slot included in the absolute time period may be part of the time slots or all the time slots included in the absolute time period, which is not limited in this disclosure.
- the first network side node when the reference period is an SFN index, performs DCI synchronization in at least one time slot included in at least one system frame corresponding to the system frame index.
- at least one system frame corresponding to the system frame index may be part of the system frame or all system frames corresponding to the system frame index.
- the at least one time slot included in the at least one system frame corresponding to the system frame index may be part of the time slots or all the time slots included in the at least one system frame corresponding to the system frame index. This disclosure does not limit this.
- the first network side node when the reference period is a subframe index, performs DCI synchronization in at least one time slot included in at least one subframe corresponding to the subframe index.
- the at least one subframe corresponding to the subframe index may be part of the subframes corresponding to the subframe index or all of the subframes.
- the at least one time slot included in the at least one subframe corresponding to the subframe index may be part of the time slots or all the time slots included in the at least one subframe corresponding to the subframe index. This disclosure does not limit this.
- the first network side node when the reference period is a time slot index, performs DCI synchronization in at least one time slot corresponding to the time slot index.
- at least one time slot corresponding to the time slot index may be part of the time slots or all time slots corresponding to the time slot index. This disclosure does not limit this.
- the second network side node can configure the period for DCI synchronization for the first network side node, so as to control at least one first network side node to perform PDCCH transmission synchronization corresponding to the MBS, and can save signaling resources. Reduce latency.
- the transmission synchronization method provided by the present disclosure will be introduced below from the first network side node side.
- FIG. 3 is a flow chart of a transmission synchronization method according to an embodiment, which can be used for a first network side node, wherein the first network side
- the node can be CU or DU, and the method can include the following steps:
- step 301 synchronization control information sent by the second network side node is received.
- the synchronization control information is used to control at least one of the first network side nodes to perform transmission synchronization of the physical downlink control channel PDCCH, where the PDCCH corresponds to the multicast broadcast service MBS.
- step 302 the PDCCH transmission synchronization is performed based on the synchronization control information.
- the method may be applied in NR or post-NR communication systems.
- the first network side node can perform PDCCH transmission synchronization corresponding to the MBS based on the synchronization control information sent by the second network side node, realizing MBS synchronization under the NR system, supporting wide area service deployment, and expanding the SFN transmission scenario. , improving cell edge performance and spectrum utilization, with high availability.
- PDCCH transmission synchronization includes at least one of the following: PDCCH transmission synchronization corresponding to MTCH transmission; PDCCH transmission synchronization corresponding to MCCH transmission; PDCCH transmission synchronization corresponding to MCCH change notification information; PDCCH transmission synchronization corresponding to resource scheduling .
- the MTCH transmission includes at least one of the following: MTCH transmission corresponding to the multicast service; MTCH transmission corresponding to the broadcast service.
- resource scheduling corresponds to any of the following scheduling methods: carrying resource scheduling information through DCI; activating or deactivating predetermined resource scheduling information through DCI.
- the first network side node may receive the synchronization control information sent by the second network side node through inter-node signaling, thereby achieving PDCCH transmission synchronization corresponding to the MBS.
- PDCCH transmission synchronization includes at least one of the following: DCI transmission content synchronization; DCI transmission resource synchronization.
- DCI transmission content synchronization includes DCI transmission information synchronization. It should be noted that this means that the default PDCCH uses the same DCI format to transmit the DCI.
- DCI transmission content synchronization includes DCI format synchronization and DCI transmission information synchronization.
- DCI transmission resources include at least one of the following: time domain resources, frequency domain resources, air domain resources, coding methods, and numerology.
- the numerology corresponds to an SCS in the frequency domain.
- time domain resources include but are not limited to at least one of the following: SS, SFN, subframe, slot, period, and starting position.
- Frequency domain resources include but are not limited to at least one of the following: CORESET, frequency, bandwidth, point-A, BWP, Cell-ID, PCI.
- Airspace resources include but are not limited to TCI status, such as related SSB and CSI-RS.
- Encoding methods include but are not limited to RNTI, DCI format, DMRS, scrambling code, etc.
- the first network side node can perform PDCCH transmission synchronization corresponding to the MBS based on the synchronization control information sent by the second network side node, realizing MBS synchronization under the NR system, supporting wide area service deployment, and expanding the SFN transmission scenario. , improving cell edge performance and spectrum utilization, with high availability.
- Figure 4 is a flow chart of a transmission synchronization method according to an embodiment, which can be used for a first network side node, where the first network side node can be a base station. , CU or DU, the method may include the following steps:
- step 401 receive configuration information sent by the second network side node.
- the configuration information is used to configure a period for DCI synchronization.
- the configuration information is used to indicate at least one of the following: DCI synchronization in each scheduling time slot; DCI synchronization in a designated scheduling time slot.
- step 402 a period for DCI synchronization is determined based on the configuration information.
- the first network side node performs DCI synchronization in one of the designated scheduling time slots, and does not need to perform DCI synchronization in other designated scheduling time slots.
- the first network side node The side node can directly reuse the previously synchronized DCI.
- the above-mentioned steps 401 to 402 can be implemented alone or in combination with the above-mentioned steps 301 to 302.
- the execution order can be adjusted as needed, and this disclosure does not limit this.
- the first network side node may determine the period for DCI synchronization based on the configuration information sent by the second network side node, so as to control at least one first network side node to perform PDCCH transmission synchronization corresponding to the MBS.
- the implementation is simple and the usability is high.
- the configuration information in this disclosure can be used to indicate that DCI synchronization is performed in a designated scheduling time slot. DCI sync.
- the configuration information is used to indicate DCI synchronization based on a predefined or preconfigured period.
- the configuration information includes one or more bitmaps, that is, the configuration information is used to indicate DCI synchronization on a designated scheduling time slot in each designated period.
- the designated scheduling time slot is at least one scheduling time slot whose bit value in the bitmap is a preset value.
- the preset value may be 1 or 0, which is not limited in this disclosure.
- the designated scheduling time slots are the 1st, 3rd, 5th, and 7th scheduling time slots, and the first network side node will ), DCI synchronization is performed on the 1st, 3rd, 5th, and 7th scheduling time slots.
- the first network side node performs DCI synchronization on the first scheduling time slot, it can directly multiplex the synchronized DCI on the 3rd, 5th, and 7th scheduling time slots.
- the configuration information includes two bitmaps, respectively 010101010 and 110101010.
- the default value is 1, then the designated scheduling time slots are the 0th, 1st, 3rd, 5th, and 7th scheduling time slots.
- the first network side node Within a specified period (for example, 10 milliseconds), DCI synchronization is performed on the 0th, 1st, 3rd, 5th, and 7th scheduling time slots. And after the first network side node performs DCI synchronization on the 0th scheduling time slot, it can directly multiplex the synchronized DCI on the 1st, 3rd, 5th, and 7th scheduling time slots.
- the configuration information is used to indicate a reference time point or a reference period.
- the first network side node may perform DCI synchronization on at least one scheduling time slot before or after the reference time point.
- the first network side node may perform DCI synchronization on at least one scheduling time slot within the reference period. Similarly, if the first network side node performs DCI synchronization in a designated scheduling time slot (generally the first designated scheduling time slot in the scheduling cycle), there is no need to perform DCI synchronization in other designated scheduling time slots. Just reuse the previously synchronized DCI.
- the reference time point or reference period includes but is not limited to an absolute time point or absolute time period, SFN index, subframe index, and timeslot index.
- the first network side node when the reference period is an absolute time period, performs DCI synchronization in at least one time slot included in the absolute time period.
- the at least one time slot included in the absolute time period may be part of the time slots or all the time slots included in the absolute time period, which is not limited in this disclosure.
- the first network side node when the reference period is an SFN index, performs DCI synchronization in at least one time slot included in at least one system frame corresponding to the system frame index.
- at least one system frame corresponding to the system frame index may be part of the system frame or all system frames corresponding to the system frame index.
- the at least one time slot included in the at least one system frame corresponding to the system frame index may be part of the time slots or all the time slots included in the at least one system frame corresponding to the system frame index. This disclosure does not limit this.
- the first network side node when the reference period is a subframe index, performs DCI synchronization in at least one time slot included in at least one subframe corresponding to the subframe index.
- the at least one subframe corresponding to the subframe index may be part of the subframes corresponding to the subframe index or all of the subframes.
- the at least one time slot included in the at least one subframe corresponding to the subframe index may be part of the time slots or all the time slots included in the at least one subframe corresponding to the subframe index. This disclosure does not limit this.
- the first network side node when the reference period is a time slot index, performs DCI synchronization in at least one time slot corresponding to the time slot index.
- at least one time slot corresponding to the time slot index may be part of the time slots or all time slots corresponding to the time slot index. This disclosure does not limit this.
- the DCI synchronization period can be performed based on the configuration information sent by the second network side node, so as to control at least one first network side node to perform PDCCH transmission synchronization corresponding to the MBS, and can save signaling resources and reduce delay.
- the present disclosure also provides an application function implementation device embodiment.
- Figure 5 is a block diagram of a transmission synchronization device according to an exemplary embodiment.
- the device is used for a second network side node and includes:
- the sending module 501 is configured to send synchronization control information to at least one first network side node; wherein the synchronization control information is used to control at least one of the first network side nodes to perform physical downlink control channel PDCCH transmission synchronization, and the PDCCH corresponds to the multicast broadcast service MBS.
- Figure 6 is a block diagram of a transmission synchronization device according to an exemplary embodiment.
- the device is used for a first network side node and includes:
- the receiving module 601 is configured to receive synchronization control information sent by the second network side node; wherein the synchronization control information is used to control at least one of the first network side nodes to perform physical downlink control channel PDCCH transmission synchronization, and the PDCCH Corresponds to the multicast broadcast service MBS;
- the synchronization module 602 is configured to perform the PDCCH transmission synchronization based on the synchronization control information.
- the device embodiment since it basically corresponds to the method embodiment, please refer to the partial description of the method embodiment for relevant details.
- the device embodiments described above are only illustrative.
- the units described above as separate components may or may not be physically separated.
- the components shown as units may or may not be physical units, that is, they may be located in a place, or can be distributed across multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the disclosed solution. Persons of ordinary skill in the art can understand and implement it without any creative effort.
- the present disclosure also provides a computer-readable storage medium that stores a computer program, and the computer program is used to execute any of the above-mentioned transmission synchronization methods for the second network side node side.
- the present disclosure also provides a computer-readable storage medium, the storage medium stores a computer program, the computer program is used to execute any of the above-mentioned transmission synchronization methods for the first network side node side.
- the present disclosure also provides a transmission synchronization device, including:
- Memory used to store instructions executable by the processor
- the processor is configured to execute the steps of any one of the transmission synchronization methods described above on the second network side node side.
- Figure 7 is a schematic structural diagram of a transmission synchronization device 700 according to an exemplary embodiment.
- the apparatus 700 may be provided as a second network side node.
- apparatus 700 includes a processing component 722, a wireless transmit/receive component 724, an antenna component 726, and a signal processing portion specific to the wireless interface.
- the processing component 722 may further include at least one processor.
- One of the processors in the processing component 722 may be configured to perform any of the transmission synchronization methods described above on the second network side node side.
- the present disclosure also provides a transmission synchronization device, including:
- Memory used to store instructions executable by the processor
- the processor is configured to execute any of the above-mentioned transmission synchronization methods on the first network side node side.
- FIG. 8 is a schematic structural diagram of a transmission synchronization device 800 according to an exemplary embodiment.
- the apparatus 800 may be provided as a first network side node.
- apparatus 800 includes a processing component 822, a wireless transmit/receive component 824, an antenna component 826, and a signal processing portion specific to the wireless interface.
- the processing component 822 may further include at least one processor.
- One of the processors in the processing component 822 may be configured to perform any of the above-mentioned transmission synchronization methods on the first network side node side.
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Abstract
本公开提供一种传输同步方法及装置、存储介质,其中,传输同步方法包括:向至少一个第一网络侧节点发送同步控制信息(101);其中,同步控制信息用于控制至少一个第一网络侧节点执行物理下行控制信道PDCCH传输同步,PDCCH与多播广播业务MBS对应。本公开可以由第二网络侧节点控制至少一个第一网络侧节点实现与MBS对应的PDCCH传输同步,实现NR系统下的MBS同步,支持广域业务部署,扩展了SFN传输场景,提高了小区边缘性能和频谱利用率,可用性高。
Description
本公开涉及通信领域,尤其涉及传输同步方法及装置、存储介质。
目前,版本17(Release 17,R17)中仅支持分布单元内部(intra-Distributed Unit,intra-DU)场景下的多播广播业务(Multicast Broadcast Service,MBS)同步,即针对单频网络(Single-Frequency Network,SFN)的MBS同步。
但是,仅支持intra-DU下的SFN会限制SFN小区部署数量,从而限制SFN的预期增益。
发明内容
为克服相关技术中存在的问题,本公开实施例提供一种传输同步方法及装置、存储介质。
根据本公开实施例的第一方面,提供一种传输同步方法,所述方法应用于第二网络侧节点,包括:
向至少一个第一网络侧节点发送同步控制信息;其中,所述同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道PDCCH传输同步,所述PDCCH与多播广播业务MBS对应。
可选地,所述PDCCH传输同步包括以下至少一项:
MBS传输信道MTCH传输对应的PDCCH传输同步;
MBS控制信道MCCH传输对应的PDCCH传输同步;
MCCH更改通知信息对应的PDCCH传输同步;
资源调度对应的PDCCH传输同步。
可选地,所述MTCH传输包括以下至少一项:
组播业务对应的MTCH传输;
广播业务对应的MTCH传输。
可选地,所述资源调度对应以下任一项调度方式:
通过下行控制信息DCI携带资源调度信息;
通过DCI激活或去激活预先确定的资源调度信息。
可选地,所述向至少一个第一网络侧节点发送同步控制信息,包括:
通过节点间信令,向至少一个所述第一网络侧节点发送所述同步控制信息。
可选地,所述PDCCH传输同步包括以下至少一项:
DCI传输内容同步;
DCI传输资源同步。
可选地,所述DCI传输内容同步包括DCI传输信息同步;或者,
所述DCI传输内容同步包括DCI格式同步和DCI传输信息同步。
可选地,所述DCI传输资源包括以下至少一项:
时域资源、频域资源、空域资源、编码方式和参数集numerology。
可选地,所述方法还包括:
向至少一个所述第一网络侧节点发送配置信息;其中,所述配置信息用于配置进行DCI同步的时段。
可选地,所述配置信息用于指示以下至少一项:
在每个调度时隙进行DCI同步;
在指定调度时隙进行DCI同步。
根据本公开实施例的第二方面,提供一种业务同步方法,所述方法应用于第一网络侧节点,包括:
接收第二网络侧节点发送的同步控制信息;其中,所述同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道PDCCH传输同步,所述PDCCH与多播广播业务MBS对应;
基于所述同步控制信息,执行所述PDCCH传输同步。
可选地,所述PDCCH传输同步包括以下至少一项:
MBS传输信道MTCH传输对应的PDCCH传输同步;
MBS控制信道MCCH传输对应的PDCCH传输同步;
MCCH更改通知信息对应的PDCCH传输同步;
资源调度对应的PDCCH传输同步。
可选地,所述MTCH传输包括以下至少一项:
组播业务对应的MTCH传输;
广播业务对应的MTCH传输。
可选地,所述资源调度对应以下任一项的调度方式:
通过下行控制信息DCI携带资源调度信息;
通过DCI激活或去激活预先确定的资源调度信息。
可选地,所述接收第二网络侧节点发送的同步控制信息,包括:
接收所述第二网络侧节点通过节点间信令发送的所述同步控制信息。
可选地,所述PDCCH传输同步包括以下至少一项:
DCI传输内容同步;
DCI传输资源同步。
可选地,所述DCI传输内容同步包括DCI传输信息同步;或者,
所述DCI传输内容同步包括DCI格式同步和DCI传输信息同步。
可选地,所述DCI传输资源包括以下至少一项:
时域资源、频域资源、空域资源、编码方式和参数集numerology。
可选地,所述方法还包括:
接收所述第二网络侧节点发送的配置信息;
基于所述配置信息,确定进行DCI同步的时段。
可选地,所述配置信息用于指示以下至少一项:
在每个调度时隙进行DCI同步;
在指定调度时隙进行DCI同步。
根据本公开实施例的第三方面,提供一种传输同步装置,所述装置应 用于第二网络侧节点,包括:
发送模块,被配置为向至少一个第一网络侧节点发送同步控制信息;其中,所述同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道PDCCH传输同步,所述PDCCH与多播广播业务MBS对应。
根据本公开实施例的第四方面,提供一种传输同步装置,所述装置应用于第一网络侧节点,包括:
接收模块,被配置为接收第二网络侧节点发送的同步控制信息;其中,所述同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道PDCCH传输同步,所述PDCCH与多播广播业务MBS对应;
同步模块,被配置为基于所述同步控制信息,执行所述PDCCH传输同步。
根据本公开实施例的第五方面,提供一种计算机可读存储介质,所述存储介质存储有计算机程序,所述计算机程序用于执行上述第一方面任一项所述的传输同步方法。
根据本公开实施例的第六方面,提供一种计算机可读存储介质,所述存储介质存储有计算机程序,所述计算机程序用于执行上述第二方面任一项所述的传输同步方法。
根据本公开实施例的第七方面,提供一种传输同步装置,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为执行所述可执行指令以实现上述第一方面任一项所述的传输同步方法的步骤。
根据本公开实施例的第八方面,提供一种传输同步装置,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为执行所述可执行指令以实现上述第二方面任一项所述的传输同步方法的步骤。
本公开的实施例提供的技术方案可以包括以下有益效果:
本公开可以由第二网络侧节点控制至少一个第一网络侧节点实现与MBS对应的PDCCH传输同步,实现NR系统下的MBS同步,支持广域业务部署,扩展了SFN传输场景,提高了小区边缘性能和频谱利用率,可用性高。
应当理解的是,以上的一般描述和后文的细节描述仅是示例性和解释性的,并不能限制本公开。
此处的附图被并入说明书中并构成本说明书的一部分,示出了符合本发明的实施例,并与说明书一起用于解释本发明的原理。
图1是根据一示例性实施例示出的一种传输同步方法流程示意图。
图2是根据一示例性实施例示出的另一种传输同步方法流程示意图。
图3是根据一示例性实施例示出的另一种传输同步方法流程示意图。
图4是根据一示例性实施例示出的另一种传输同步方法流程示意图。
图5是根据一示例性实施例示出的一种传输同步装置框图。
图6是根据一示例性实施例示出的另一种传输同步装置框图。
图7是本公开根据一示例性实施例示出的一种传输同步装置的一结构示意图。
图8是本公开根据一示例性实施例示出的另一种传输同步装置的一结构示意图。
这里将详细地对示例性实施例进行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本 发明的一些方面相一致的装置和方法的例子。
在本公开使用的术语是仅仅出于描述特定实施例的目的,而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式,除非上下文清楚地表示其他含义。还应当理解,本文中使用的术语“和/或”是指并包含至少一个相关联的列出项目的任何或所有可能组合。
应当理解,尽管在本公开可能采用术语第一、第二、第三等来描述各种信息,但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如,在不脱离本公开范围的情况下,第一信息也可以被称为第二信息,类似地,第二信息也可以被称为第一信息。取决于语境,如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
在第5代移动通信技术(5th Generation Mobile Communication Technology,5G)新空口(New Radio,NR)系统中,MBS业务可以通过MBS业务标识进行标记,MBS业务标识包括以下至少一项:临时移动组标识(Temporary Mobile Group Identity,TMGI)、MBS会话标识(MBS Session ID)、MBS业务流标识(MBS QoS flow ID)。
其中,MBS业务的发送模式包括以下两种:
发送模式一(多播发送),终端进入无线资源控制连接态(RRC_CONNECTED)接收MBS业务的发送配置信息,从而才能接收MBS业务。网络侧设备通过终端专属信令将MBS业务的接收配置信息发送给终端。
发送模式二(广播发送),终端可以在空闲态(IDLE)或非激活态(INACTIVE)或连接态(CONNECTED)接收MBS业务的发送配置信息,并接收MBS业务。网络侧设备通过系统信息和MBS控制信道(MBS Control Channel,MCCH)信息将MBS业务的接收配置信息发送给终端。其中,系统信息可以为系统信息块(System Information Block,SIB)。
考虑到MBS业务针对的是SFN,限制了SFN小区部署数量,以及SFN的预期增益。为了解决上述技术问题,本公开提供了以下传输同步方法、装置及存储介质。
下面先从第二网络侧节点侧介绍本公开提供的传输同步方法。
本公开实施例提供了一种传输同步方法,参照图1所示,图1是根据一实施例示出的一种传输同步方法流程图,可以用于第二网络侧节点,其中,第二网络侧节点可以为基站、集中单元(Centralized Unit,CU)、分布单元(Distributed Unit,DU)或独立于上述节点的一个网络侧节点,例如MBS主控节点,本公开对此不作限定,该方法可以包括以下步骤:
在步骤101中,向至少一个第一网络侧节点发送同步控制信息。
在本公开实施例中,第一网络侧节点可以为CU或DU。该同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道(Physical Downlink Control Channel,PDCCH)传输同步,所述PDCCH与多播广播业务MBS对应。
在本公开实施例中,该方法可以应用于NR或NR之后的通信系统中。
上述实施例中,可以由第二网络侧节点控制至少一个第一网络侧节点实现与MBS对应的PDCCH传输同步,实现NR系统下的MBS同步,支持广域业务部署,扩展了SFN传输场景,提高了小区边缘性能和频谱利用率,可用性高。
在一些可选实施例中,PDCCH传输同步包括以下至少一项:MBS传输信道(MBS Transmission Channel,MTCH)传输对应的PDCCH传输同步;MBS控制信道(MBS Control Channel,MCCH)传输对应的PDCCH传输同步;MCCH更改通知信息对应的PDCCH传输同步;资源调度对应的PDCCH传输同步。
其中,MTCH传输包括以下至少一项:组播业务对应的MTCH传输;广播业务对应的MTCH传输。
其中,资源调度对应以下任一项调度方式:通过下行控制信息 (Downlink Control Information,DCI)携带资源调度信息;通过DCI激活或去激活预先确定的资源调度信息。
在一些可选实施例中,第二网络侧节点可以通过节点间(inter-node)信令,向至少一个所述第一网络侧节点发送所述同步控制信息,从而实现与MBS对应的PDCCH传输同步。
进一步地,PDCCH传输同步包括以下至少一项:DCI传输内容同步;DCI传输资源同步。
在一个可能的实现方式中,DCI传输内容同步包括DCI传输信息同步。需要说明的是,这里是指默认PDCCH使用相同的DCI格式传输该DCI。
在另一个可能的实现方式中,如果存在多个候选DCI格式,则DCI传输内容同步包括DCI格式同步和DCI传输信息同步。
进一步地,DCI传输资源包括以下至少一项:时域资源、频域资源、空域资源、编码方式和参数集(numerology)。其中,所述numerology与频域上的一个SCS(SubCarrier Spacing,子载波间隔)对应。
在本公开实施例中,时域资源包括但不限于以下至少一项:搜索空间(Searching Space,SS)、系统帧号(System Frame Number,SFN)、子帧(subframe)、时隙(slot)、周期、起始位置(starting position)。
频域资源包括但不限于以下至少一项:控制资源集合(Control Resource Set,CORESET)、频点(frequency)、带宽(bandwidth)、参考点A(point-A)、部分带宽(Bandwidth Part,BWP)、小区标识(Cell-ID)、物理小区标识(Physical Cell Identifier,PCI)。
空域资源包括但不限于传输配置索引(Transmission Configuration Index,TCI)状态,例如相关同步信号块(Synchronization Signal and PBCH block,SSB)、信道状态信息参考信号(Channel State Information-Reference Signal,CSI-RS)。
编码方式包括但不限于无线网络临时标识(Radio Network Temporary Identity,RNTI)、DCI格式、解调参考信号(Demodulation Reference Signal, DMRS)、扰码(scrambling code)等。
在本公开实施例中,Numerology在每次传输PDCCH前都需要进行同步。在一个可能的实现方式中,每次同步BWP配置信息时,可以同步Numerology。上述实施例中,可以由第二网络侧节点控制至少一个第一网络侧节点实现与MBS对应的PDCCH传输同步,实现NR系统下的MBS同步,支持广域业务部署,扩展了SFN传输场景,提高了小区边缘性能和频谱利用率,可用性高。
在一些可选实施例中,参照图2所示,图2是根据一实施例示出的一种传输同步方法流程图,可以用于第二网络侧节点,其中,第二网络侧节点可以为基站、CU、DU或独立于上述节点的一个网络侧节点,例如MBS主控节点,该方法可以包括以下步骤:
在步骤201中,向至少一个所述第一网络侧节点发送配置信息。
在本公开实施例中,配置信息用于配置进行DCI同步的时段。
在一个可能的实现方式中,配置信息用于指示以下至少一项:在每个调度时隙进行DCI同步;在指定调度时隙进行DCI同步。
其中,在配置信息用于指示在指定调度时隙进行DCI同步的情况下,如果第一网络侧节点在某个指定调度时隙进行了DCI同步,则在其他指定调度时隙无需再进行DCI同步了,直接复用之前同步过的DCI即可。
还需要说明的是步骤201可以单独实施,也可以与上述步骤101组合实施,在组合实施的情况下,本公开不限定步骤101与步骤201的执行顺序,即,步骤101可以在步骤201之前执行,也可以在步骤201之后执行,此外,同时执行也是可能的。
上述实施例中,可以由第二网络侧节点为第一网络侧节点配置进行DCI同步的时段,以便实现控制至少一个第一网络侧节点执行与MBS对应的PDCCH传输同步。实现方式简便,可用性高。
在一些可选实施例中,考虑到每个调度时隙均进行DCI同步会引入调度时延,为了节省信令开销降低时延,本公开中的配置信息可以用于指示 在指定调度时隙进行DCI同步。
在一个可能的实现方式中,该配置信息用于指示基于预定义或预配置的周期进行DCI同步。
在另一个可能的实现方式中,配置信息中包括一个或多个bitmap(比特图),即所述配置信息用于指示在每个指定周期内的指定调度时隙上进行DCI同步。其中,所述指定调度时隙是至少一个所述比特图中比特值为预设值的调度时隙。预设值可以为1或0,本公开对此不作限定。
例如,配置信息中包括一个比特图,为010101010,预设值为1,则指定调度时隙为第1、3、5、7个调度时隙,第一网络侧节点在指定周期(例如10毫秒)内,在第1、3、5、7个调度时隙上进行DCI同步。且第一网络侧节点在第1个调度时隙上进行DCI同步后,在第3、5、7个调度时隙上可以直接复用已经同步的DCI。
再例如,配置信息中包括两个比特图,分别为010101010、110101010,预设值为1,则指定调度时隙为第0、1、3、5、7个调度时隙,第一网络侧节点在指定周期(例如10毫秒)内,在第0、1、3、5、7个调度时隙上进行DCI同步。且第一网络侧节点在第0个调度时隙上进行DCI同步后,在第1、3、5、7个调度时隙上可以直接复用已经同步的DCI。
在另一个可能的实现方式中,配置信息用于指示参考时间点或参考时段。其中,配置信息用于指示参考时间点的情况下,第一网络侧节点可以在参考时间点之前或之后的至少一个调度时隙上进行DCI同步。配置信息用于指示参考时段的情况下,第一网络侧节点可以在该参考时段内的至少一个调度时隙上进行DCI同步。同样地,如果第一网络侧节点在某个指定调度时隙进行了DCI同步,则在其他指定调度时隙无需再进行DCI同步了,直接复用之前同步过的DCI即可。
其中,参考时间点或参考时段包括但不限于绝对时间点或绝对时间段、SFN索引、子帧索引、时隙索引。
可选地,在参考时段为绝对时间段的情况下,第一网络侧节点在该绝 对时间段中包括的至少一个时隙内进行DCI同步。其中,绝对时间段中包括的至少一个时隙可以为该绝对时间段中包括的部分时隙或者全部时隙,本公开对此不作限定。
可选地,在参考时段为SFN索引的情况下,第一网络侧节点在该系统帧索引对应的至少一个系统帧中包括的至少一个时隙内进行DCI同步。其中,该系统帧索引对应的至少一个系统帧可以为该系统帧索引对应的部分系统帧或者全部系统帧。其中,该系统帧索引对应的至少一个系统帧中包括的至少一个时隙可以为该系统帧索引对应的至少一个系统帧中包括的部分时隙或者全部时隙。本公开对此不作限定。
可选地,在参考时段为子帧索引的情况下,第一网络侧节点在该子帧索引对应的至少一个子帧中包括的至少一个时隙内进行DCI同步。其中,该子帧索引对应的至少一个子帧可以为该子帧索引对应的部分子帧或者全部子帧。其中,该子帧索引对应的至少一个子帧中包括的至少一个时隙可以为该子帧索引对应的至少一个子帧中包括的部分时隙或者全部时隙。本公开对此不作限定。
可选地,在参考时段为时隙索引的情况下,第一网络侧节点在该时隙索引对应的至少一个时隙内进行DCI同步。其中,该时隙索引对应的至少一个时隙可以为该时隙索引对应的部分时隙或者全部时隙。本公开对此不作限定。
上述实施例中,可以由第二网络侧节点为第一网络侧节点配置进行DCI同步的时段,以便实现控制至少一个第一网络侧节点执行与MBS对应的PDCCH传输同步,且可以节省信令资源降低时延。
下面再从第一网络侧节点侧介绍本公开提供的传输同步方法。
本公开实施例提供了一种传输同步方法,参照图3所示,图3是根据一实施例示出的一种传输同步方法流程图,可以用于第一网络侧节点,其中,第一网络侧节点可以为CU或DU,该方法可以包括以下步骤:
在步骤301中,接收第二网络侧节点发送的同步控制信息。
在本公开实施例中,同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道PDCCH传输同步,所述PDCCH与多播广播业务MBS对应。
在步骤302中,基于所述同步控制信息,执行所述PDCCH传输同步。
在本公开实施例中,该方法可以应用于NR或NR之后的通信系统中。
上述实施例中,第一网络侧节点可以基于第二网络侧节点发送的同步控制信息执行与MBS对应的PDCCH传输同步,实现NR系统下的MBS同步,支持广域业务部署,扩展了SFN传输场景,提高了小区边缘性能和频谱利用率,可用性高。
在一些可选实施例中,PDCCH传输同步包括以下至少一项:MTCH传输对应的PDCCH传输同步;MCCH传输对应的PDCCH传输同步;MCCH更改通知信息对应的PDCCH传输同步;资源调度对应的PDCCH传输同步。
其中,MTCH传输包括以下至少一项:组播业务对应的MTCH传输;广播业务对应的MTCH传输。
其中,资源调度对应以下任一项调度方式:通过DCI携带资源调度信息;通过DCI激活或去激活预先确定的资源调度信息。
在一些可选实施例中,第一网络侧节点可以接收第二网络侧节点通过节点间信令发送的所述同步控制信息,从而实现与MBS对应的PDCCH传输同步。
进一步地,PDCCH传输同步包括以下至少一项:DCI传输内容同步;DCI传输资源同步。
在一个可能的实现方式中,DCI传输内容同步包括DCI传输信息同步。需要说明的是,这里是指默认PDCCH使用相同的DCI格式传输该DCI。
在另一个可能的实现方式中,如果存在多个候选DCI格式,则DCI传输内容同步包括DCI格式同步和DCI传输信息同步。
进一步地,DCI传输资源包括以下至少一项:时域资源、频域资源、 空域资源、编码方式和numerology。其中,所述numerology与频域上的一个SCS对应。
在本公开实施例中,时域资源包括但不限于以下至少一项:SS、SFN、subframe、slot、周期、starting position。
频域资源包括但不限于以下至少一项:CORESET、frequency、bandwidth、point-A、BWP、Cell-ID、PCI。
空域资源包括但不限于TCI状态,例如相关SSB、CSI-RS。
编码方式包括但不限于RNTI、DCI格式、DMRS、scrambling code等。
在本公开实施例中,Numerology在每次传输PDCCH前都需要进行同步。在一个可能的实现方式中,每次同步BWP配置信息时,可以同步Numerology。
上述实施例中,第一网络侧节点可以基于第二网络侧节点发送的同步控制信息执行与MBS对应的PDCCH传输同步,实现NR系统下的MBS同步,支持广域业务部署,扩展了SFN传输场景,提高了小区边缘性能和频谱利用率,可用性高。
在一些可选实施例中,参照图4所示,图4是根据一实施例示出的一种传输同步方法流程图,可以用于第一网络侧节点,其中,第一网络侧节点可以为基站、CU或DU,该方法可以包括以下步骤:
在步骤401中,接收所述第二网络侧节点发送的配置信息。
在本公开实施例中,配置信息用于配置进行DCI同步的时段。
在一个可能的实现方式中,配置信息用于指示以下至少一项:在每个调度时隙进行DCI同步;在指定调度时隙进行DCI同步。
在步骤402中,基于所述配置信息,确定进行DCI同步的时段。
如果配置信息用于指示在指定调度时隙进行DCI同步,则第一网络侧节点在其中的某个指定调度时隙进行了DCI同步,在其他指定调度时隙无需再进行DCI同步,第一网络侧节点可以直接复用之前同步过的DCI。
上述步骤401至402可以单独实施,也可以与上述步骤301至302组 合实施,此外,执行顺序可以根据需要进行调整,本公开对此不做限定。
上述实施例中,第一网络侧节点可以基于第二网络侧节点发送的配置信息确定进行DCI同步的时段,以便实现控制至少一个第一网络侧节点执行与MBS对应的PDCCH传输同步。实现方式简便,可用性高。
在一些可选实施例中,考虑到每个调度时隙均进行DCI同步会引入调度时延,为了节省信令开销降低时延,本公开中的配置信息可以用于指示在指定调度时隙进行DCI同步。
在一个可能的实现方式中,该配置信息用于指示基于预定义或预配置的周期进行DCI同步。
在另一个可能的实现方式中,配置信息中包括一个或多个bitmap,即所述配置信息用于指示在每个指定周期内的指定调度时隙上进行DCI同步。其中,所述指定调度时隙是至少一个所述比特图中比特值为预设值的调度时隙。预设值可以为1或0,本公开对此不作限定。
例如,配置信息中包括一个比特图,为010101010,预设值为1,则指定调度时隙为第1、3、5、7个调度时隙,第一网络侧节点在指定周期(例如10毫秒)内,在第1、3、5、7个调度时隙上进行DCI同步。且第一网络侧节点在第1个调度时隙上进行DCI同步后,在第3、5、7个调度时隙上可以直接复用已经同步的DCI。
再例如,配置信息中包括两个比特图,分别为010101010、110101010,预设值为1,则指定调度时隙为第0、1、3、5、7个调度时隙,第一网络侧节点在指定周期(例如10毫秒)内,在第0、1、3、5、7个调度时隙上进行DCI同步。且第一网络侧节点在第0个调度时隙上进行DCI同步后,在第1、3、5、7个调度时隙上可以直接复用已经同步的DCI。
在另一个可能的实现方式中,配置信息用于指示参考时间点或参考时段。
其中,配置信息用于指示参考时间点的情况下,第一网络侧节点可以在参考时间点之前或之后的至少一个调度时隙上进行DCI同步。
配置信息用于指示参考时段的情况下,第一网络侧节点可以在该参考时段内的至少一个调度时隙上进行DCI同步。同样地,如果第一网络侧节点在某个指定调度时隙(一般为该调度周期内的首个指定调度时隙)进行了DCI同步,则在其他指定调度时隙无需再进行DCI同步了,直接复用之前同步过的DCI即可。
其中,参考时间点或参考时段包括但不限于绝对时间点或绝对时间段、SFN索引、子帧索引、时隙索引。
可选地,参考时段为绝对时间段的情况下,第一网络侧节点在该绝对时间段中包括的至少一个时隙内进行DCI同步。其中,绝对时间段中包括的至少一个时隙可以为该绝对时间段中包括的部分时隙或者全部时隙,本公开对此不作限定。
可选地,参考时段为SFN索引的情况下,第一网络侧节点在该系统帧索引对应的至少一个系统帧中包括的至少一个时隙内进行DCI同步。其中,该系统帧索引对应的至少一个系统帧可以为该系统帧索引对应的部分系统帧或者全部系统帧。其中,该系统帧索引对应的至少一个系统帧中包括的至少一个时隙可以为该系统帧索引对应的至少一个系统帧中包括的部分时隙或者全部时隙。本公开对此不作限定。
可选地,参考时段为子帧索引的情况下,第一网络侧节点在该子帧索引对应的至少一个子帧中包括的至少一个时隙内进行DCI同步。其中,该子帧索引对应的至少一个子帧可以为该子帧索引对应的部分子帧或者全部子帧。其中,该子帧索引对应的至少一个子帧中包括的至少一个时隙可以为该子帧索引对应的至少一个子帧中包括的部分时隙或者全部时隙。本公开对此不作限定。
可选地,参考时段为时隙索引的情况下,第一网络侧节点在该时隙索引对应的至少一个时隙内进行DCI同步。其中,该时隙索引对应的至少一个时隙可以为该时隙索引对应的部分时隙或者全部时隙。本公开对此不作限定。
上述实施例中,可以基于第二网络侧节点发送的配置信息进行DCI同步的时段,以便实现控制至少一个第一网络侧节点执行与MBS对应的PDCCH传输同步,且可以节省信令资源降低时延。
与前述应用功能实现方法实施例相对应,本公开还提供了应用功能实现装置的实施例。
参照图5,图5是根据一示例性实施例示出的一种传输同步装置框图,所述装置用于第二网络侧节点,包括:
发送模块501,被配置为向至少一个第一网络侧节点发送同步控制信息;其中,所述同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道PDCCH传输同步,所述PDCCH与多播广播业务MBS对应。
关于PDCCH传输同步的具体描述,已经在前述实施例中进行了详细地说明,在此不再赘述。参照图6,图6是根据一示例性实施例示出的一种传输同步装置框图,所述装置用于第一网络侧节点,包括:
接收模块601,被配置为接收第二网络侧节点发送的同步控制信息;其中,所述同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道PDCCH传输同步,所述PDCCH与多播广播业务MBS对应;
同步模块602,被配置为基于所述同步控制信息,执行所述PDCCH传输同步。
关于PDCCH传输同步的具体描述,已经在前述实施例中进行了详细地说明,在此不再赘述。
对于装置实施例而言,由于其基本对应于方法实施例,所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的,其中上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模块来实现本公开方案的目的。本领域普通技术人员在 不付出创造性劳动的情况下,即可以理解并实施。
相应地,本公开还提供了一种计算机可读存储介质,所述存储介质存储有计算机程序,所述计算机程序用于执行上述用于第二网络侧节点侧任一所述的传输同步方法。
相应地,本公开还提供了一种计算机可读存储介质,所述存储介质存储有计算机程序,所述计算机程序用于执行上述用于第一网络侧节点侧任一所述的传输同步方法。
相应地,本公开还提供了一种传输同步装置,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为用于执行上述第二网络侧节点侧任一所述的传输同步方法的步骤。
如图7所示,图7是根据一示例性实施例示出的一种传输同步装置700的一结构示意图。装置700可以被提供为第二网络侧节点。参照图7,装置700包括处理组件722、无线发射/接收组件724、天线组件726、以及无线接口特有的信号处理部分,处理组件722可进一步包括至少一个处理器。
处理组件722中的其中一个处理器可以被配置为用于执行上述第二网络侧节点侧任一所述的传输同步方法。
相应地,本公开还提供了一种传输同步装置,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为用于执行上述第一网络侧节点侧任一所述的传输同步方法。
如图8所示,图8是根据一示例性实施例示出的一种传输同步装置800的一结构示意图。装置800可以被提供为第一网络侧节点。参照图8,装置800包括处理组件822、无线发射/接收组件824、天线组件826、以及 无线接口特有的信号处理部分,处理组件822可进一步包括至少一个处理器。
处理组件822中的其中一个处理器可以被配置为用于执行上述第一网络侧节点侧的任一所述的传输同步方法。
本领域技术人员在考虑说明书及实践这里公开的发明后,将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化,这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或者惯用技术手段。说明书和实施例仅被视为示例性的,本公开的真正范围和精神由下面的权利要求指出。
应当理解的是,本公开并不局限于上面已经描述并在附图中示出的精确结构,并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。
Claims (26)
- 一种传输同步方法,其特征在于,所述方法应用于第二网络侧节点,包括:向至少一个第一网络侧节点发送同步控制信息;其中,所述同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道PDCCH传输同步,所述PDCCH与多播广播业务MBS对应。
- 根据权利要求1所述的方法,其特征在于,所述PDCCH传输同步包括以下至少一项:MBS传输信道MTCH传输对应的PDCCH传输同步;MBS控制信道MCCH传输对应的PDCCH传输同步;MCCH更改通知信息对应的PDCCH传输同步;资源调度对应的PDCCH传输同步。
- 根据权利要求2所述的方法,其特征在于,所述MTCH传输包括以下至少一项:组播业务对应的MTCH传输;广播业务对应的MTCH传输。
- 根据权利要求2所述的方法,其特征在于,所述资源调度对应以下任一项调度方式:通过下行控制信息DCI携带资源调度信息;通过DCI激活或去激活预先确定的资源调度信息。
- 根据权利要求1所述的方法,其特征在于,所述向至少一个第一网络侧节点发送同步控制信息,包括:通过节点间信令,向至少一个所述第一网络侧节点发送所述同步控制信息。
- 根据权利要求5所述的方法,其特征在于,所述PDCCH传输同步包括以下至少一项:DCI传输内容同步;DCI传输资源同步。
- 根据权利要求6所述的方法,其特征在于,所述DCI传输内容同步包括DCI传输信息同步;或者,所述DCI传输内容同步包括DCI格式同步和DCI传输信息同步。
- 根据权利要求6所述的方法,其特征在于,所述DCI传输资源包括以下至少一项:时域资源、频域资源、空域资源、编码方式和参数集numerology。
- 根据权利要求4所述的方法,其特征在于,所述方法还包括:向至少一个所述第一网络侧节点发送配置信息;其中,所述配置信息用于配置进行DCI同步的时段。
- 根据权利要求9所述的方法,其特征在于,所述配置信息用于指示以下至少一项:在每个调度时隙进行DCI同步;在指定调度时隙进行DCI同步。
- 一种传输同步方法,其特征在于,所述方法应用于第一网络侧节点,包括:接收第二网络侧节点发送的同步控制信息;其中,所述同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道PDCCH传输同步,所述PDCCH与多播广播业务MBS对应;基于所述同步控制信息,执行所述PDCCH传输同步。
- 根据权利要求11所述的方法,其特征在于,所述PDCCH传输同步包括以下至少一项:MBS传输信道MTCH传输对应的PDCCH传输同步;MBS控制信道MCCH传输对应的PDCCH传输同步;MCCH更改通知信息对应的PDCCH传输同步;资源调度对应的PDCCH传输同步。
- 根据权利要求12所述的方法,其特征在于,所述MTCH传输包括以下至少一项:组播业务对应的MTCH传输;广播业务对应的MTCH传输。
- 根据权利要求12所述的方法,其特征在于,所述资源调度对应以下任一项的调度方式:通过下行控制信息DCI携带资源调度信息;通过DCI激活或去激活预先确定的资源调度信息。
- 根据权利要求11所述的方法,其特征在于,所述接收第二网络侧节点发送的同步控制信息,包括:接收所述第二网络侧节点通过节点间信令发送的所述同步控制信息。
- 根据权利要求15所述的方法,其特征在于,所述PDCCH传输同步包括以下至少一项:DCI传输内容同步;DCI传输资源同步。
- 根据权利要求16所述的方法,其特征在于,所述DCI传输内容同步包括DCI传输信息同步;或者,所述DCI传输内容同步包括DCI格式同步和DCI传输信息同步。
- 根据权利要求16所述的方法,其特征在于,所述DCI传输资源包括以下至少一项:时域资源、频域资源、空域资源、编码方式和参数集numerology。
- 根据权利要求14所述的方法,其特征在于,所述方法还包括:接收所述第二网络侧节点发送的配置信息;基于所述配置信息,确定进行DCI同步的时段。
- 根据权利要求19所述的方法,其特征在于,所述配置信息用于指示以下至少一项:在每个调度时隙进行DCI同步;在指定调度时隙进行DCI同步。
- 一种传输同步装置,其特征在于,所述装置应用于第二网络侧节点,包括:发送模块,被配置为向至少一个第一网络侧节点发送同步控制信息;其中,所述同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道PDCCH传输同步,所述PDCCH与多播广播业务MBS对应。
- 一种传输同步装置,其特征在于,所述装置应用于第一网络侧节点,包括:接收模块,被配置为接收第二网络侧节点发送的同步控制信息;其中,所述同步控制信息用于控制至少一个所述第一网络侧节点执行物理下行控制信道PDCCH传输同步,所述PDCCH与多播广播业务MBS对应;同步模块,被配置为基于所述同步控制信息,执行所述PDCCH传输同步。
- 一种计算机可读存储介质,其特征在于,所述存储介质存储有计算机程序,所述计算机程序用于执行上述权利要求1-10任一项所述的传输同步方法。
- 一种计算机可读存储介质,其特征在于,所述存储介质存储有计算机程序,所述计算机程序用于执行上述权利要求11-20任一项所述的传输同步方法。
- 一种传输同步装置,其特征在于,包括:处理器;用于存储处理器可执行指令的存储器;其中,所述处理器被配置为执行所述可执行指令以实现上述权利要求1-10任一项所述的传输同步方法的步骤。
- 一种传输同步装置,其特征在于,包括:处理器;用于存储处理器可执行指令的存储器;其中,所述处理器被配置为执行所述可执行指令以实现上述权利要求11-20任一项所述的传输同步方法的步骤。
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