WO2021008358A1 - 一种被用于无线通信的节点中的方法和装置 - Google Patents
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Definitions
- This application relates to a transmission method and device in a wireless communication system, and in particular to a method and device for timing synchronization in a system with a relatively large transmission delay.
- V2X Vehicle-to-Everything
- 3GPP has also started standard formulation and research work under the NR framework.
- 3GPP has completed the formulation of requirements for 5G V2X services and has written it into the standard TS22.886.
- 3GPP defines 4 Use Case Groups for 5G V2X services, including: Automated Queue Driving (Vehicles Platnooning), Support for Extended Sensors (Extended Sensors), Semi/Full Auto Driving (Advanced Driving) and Remote Driving ( Remote Driving).
- Automated Queue Driving Vehicle-to-Everything
- the V2X sender determines the time-frequency resources for V2X transmission through sensing measurement (Sensing Measurement).
- NTN Non-Terrestrial Networks
- R15 the research project of Non-Terrestrial Networks (NTN, Non-Terrestrial Networks) under NR was passed at the 3GPP RAN#75 plenary meeting.
- the R15 version started.
- NTN network has the advantage of wide coverage.
- NTN network can configure time-frequency resources for V2X transmission for geographical locations not covered by ground base stations, and then V2X terminals determine the actual transmission based on base station configuration signaling. Time-frequency resources.
- the base station In Rel-12's D2D (Device to Device) transmission, the base station generally configures a unified time domain resource for D2D transmission for the entire cell to avoid the impact on the Uu port (corresponding to the cellular link); because The delay from the user to the base station under the coverage of the base station is small, often not exceeding the duration of a multi-carrier symbol, and it is considered that the UE (User Equipment) far away from the base station and the UE closer to the base station are configured in a unified manner Under the D2D time domain resources, it will not affect the Uu port of the terminal itself.
- UE User Equipment
- This application discloses a method used in a first node of wireless communication, which is characterized in that it includes:
- the first time-frequency resource set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is one time-frequency resource pool among the K time-frequency resource pools;
- the K time offsets are respectively One-to-one correspondence with the K time-frequency resource pools, and the first signaling is used to determine the time offset corresponding to each time-frequency resource pool in the K time-frequency resource pools;
- the first time The offset is the time offset corresponding to the first time-frequency resource pool in the K time offsets, and the first time offset is equal to the first time-frequency resource set in the time domain.
- the time offset value between the start time and the start time of the first time-frequency resource pool in the time domain; the first signaling is transmitted on the cellular link, and the first signal is on the secondary link transmission.
- the principle of the above method is: because the transmission delays of different UEs to the base station are very different, when the base station configures unified time domain resources for V2X transmission, the Uu port transmission of some UEs will shift to other On the UE’s V2X resources; in response to the above problem, the K time offsets are respectively used to indicate the number of multi-carrier symbols that the data channel needs to be delayed when the data channel is actually transmitted in the K time-frequency resource pools ; The time domain resources corresponding to the number of multi-carrier symbols mentioned above will be interfered by the Uu port uplink transmission of other UEs.
- the advantage of the above method is that when the base station configures the V2X transmission and knows the location information of the UE under coverage, the base station can indicate K time offsets, combined with scheduling, in a unified configuration for V2X transmission
- the time-domain resources of the Uu port are indicated by K time offsets to avoid the interference of the Uu port to the PC-5 port, thereby improving spectrum efficiency and avoiding fragmentation of time-domain resources.
- the above method is characterized in that the first signaling includes K sub-signaling, the K sub-signaling is used to determine the K time-frequency resource pools, and the K sub-signaling The signaling is used to determine the K time offsets respectively.
- the advantage of the above method is that the K sub-signaling can independently configure the K time offsets, thereby more flexibly indicating when the K time-frequency resource pools cannot be used for V2X transmission. Domain resources, improve spectrum efficiency, and increase scheduling flexibility.
- the above method is characterized in that any one of the K time offsets belongs to a first time offset set, and the first time offset set includes more than 1 A positive integer number of time offsets; for a given subcarrier interval of subcarriers occupied by the first signal in the frequency domain, the time offset included in the first time offset set is fixed .
- the advantage of the above method is that different subcarrier intervals correspond to different durations of multi-carrier symbols, and further correspond to different value ranges of K time offsets; the above design shifts the K time offsets The value range of the shift amount is connected with the subcarrier interval, and the introduction of excessive signaling overhead for indicating the K time offset values is avoided.
- the above method is characterized by including:
- the second signaling includes a set of configuration information of the first signal, the second signaling is physical layer signaling; the second time-frequency resource set belongs to the first time-frequency resource pool, for Given the sub-carrier interval of the sub-carrier occupied by the second signaling in the frequency domain, the second time-frequency resource set is at the start time of the time domain and the first time-frequency resource pool is in the time domain. The length of the time interval between the starting moments is fixed.
- the above method is characterized in that the first signaling is used to determine the resource mapping manner of the first signal in the first time-frequency resource pool.
- the above method is characterized in that the K time offsets are related to the position information of the first node.
- the advantage of the above method is that the position of the first node relative to the base station will affect the degree of interference that the first node receives from the Uu ports of other UEs, and the K time offsets are compared with The location information of the first node establishes a connection, which helps to configure V2X resources more efficiently and reduce interference.
- This application discloses a method used in a second node of wireless communication, which is characterized in that it includes:
- the recipient of the first signaling includes a first node, and the first node sends the first signal in a first time-frequency resource set;
- the first time-frequency resource set belongs to a first time-frequency resource pool,
- the first time-frequency resource pool is one of the K time-frequency resource pools;
- K time offsets correspond to the K time-frequency resource pools respectively, and the first information Let is used to determine the time offset corresponding to each time-frequency resource pool in the K time-frequency resource pools;
- the first time offset is the first time offset in the K time-frequency resource pools
- the time offset corresponding to the frequency resource pool, where the first time offset is equal to the start time of the first time-frequency resource set in the time domain and the start time of the first time-frequency resource pool in the time domain The time offset value between times; the first signaling is transmitted on the cellular link, and the first signal is transmitted on the secondary link.
- the above method is characterized in that the first signaling includes K sub-signaling, the K sub-signaling is used to determine the K time-frequency resource pools, and the K sub-signaling The signaling is used to determine the K time offsets respectively.
- the above method is characterized in that any one of the K time offsets belongs to a first time offset set, and the first time offset set includes more than 1 A positive integer number of time offsets; for a given subcarrier interval of subcarriers occupied by the first signal in the frequency domain, the time offset included in the first time offset set is fixed .
- the above method is characterized in that the first node sends second signaling in a second set of time-frequency resources; the second signaling includes a set of configuration information of the first signal, so The second signaling is physical layer signaling; the second time-frequency resource set belongs to the first time-frequency resource pool, for a given subcarrier of the subcarrier occupied by the second signaling in the frequency domain Interval, the length of the time interval between the start time of the second time-frequency resource set in the time domain and the start time of the first time-frequency resource pool in the time domain is fixed.
- the above method is characterized in that the first signaling is used to determine the resource mapping manner of the first signal in the first time-frequency resource pool.
- the above method is characterized in that the K time offsets are related to the position information of the first node.
- This application discloses a method used in a third node of wireless communication, which is characterized in that it includes:
- the sender of the first signal receives first signaling, and the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1, and the first time-frequency resource
- the set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is one of the K time-frequency resource pools; the K time offsets are respectively the same as the K time-frequency resource pools One-to-one correspondence.
- the first signaling is used to determine the time offset corresponding to each of the K time-frequency resource pools; the first time offset is the K time In the offset, the time offset corresponding to the first time-frequency resource pool, where the first time offset is equal to the start time of the first time-frequency resource set in the time domain and the first time The time offset value between the start moments of the frequency resource pool in the time domain; the first signaling is transmitted on the cellular link, and the first signal is transmitted on the secondary link.
- the above method is characterized in that the first signaling includes K sub-signaling, the K sub-signaling is used to determine the K time-frequency resource pools, and the K sub-signaling The signaling is used to determine the K time offsets respectively.
- the above method is characterized in that any one of the K time offsets belongs to a first time offset set, and the first time offset set includes more than 1 A positive integer number of time offsets; for a given subcarrier interval of subcarriers occupied by the first signal in the frequency domain, the time offset included in the first time offset set is fixed .
- the above method is characterized by including:
- the second signaling includes a set of configuration information of the first signal, the second signaling is physical layer signaling; the second time-frequency resource set belongs to the first time-frequency resource pool, for Given the sub-carrier interval of the sub-carrier occupied by the second signaling in the frequency domain, the second time-frequency resource set is at the start time of the time domain and the first time-frequency resource pool is in the time domain. The length of the time interval between the starting moments is fixed.
- the above method is characterized in that the first signaling is used to determine the resource mapping manner of the first signal in the first time-frequency resource pool.
- the above method is characterized in that the K time offsets are related to the location information of the sender of the first signal.
- This application discloses a first node used for wireless communication, which is characterized by including:
- the first receiver receives first signaling, where the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1;
- the first transmitter sends the first signal in the first time-frequency resource set
- the first time-frequency resource set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is one time-frequency resource pool among the K time-frequency resource pools;
- the K time offsets are respectively One-to-one correspondence with the K time-frequency resource pools, and the first signaling is used to determine the time offset corresponding to each time-frequency resource pool in the K time-frequency resource pools;
- the first time The offset is the time offset corresponding to the first time-frequency resource pool in the K time offsets, and the first time offset is equal to the first time-frequency resource set in the time domain.
- the time offset value between the start time and the start time of the first time-frequency resource pool in the time domain; the first signaling is transmitted on the cellular link, and the first signal is on the secondary link transmission.
- This application discloses a second node used for wireless communication, which is characterized by including:
- the second transmitter sends first signaling, where the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1;
- the recipient of the first signaling includes a first node, and the first node sends the first signal in a first time-frequency resource set;
- the first time-frequency resource set belongs to a first time-frequency resource pool,
- the first time-frequency resource pool is one of the K time-frequency resource pools;
- K time offsets correspond to the K time-frequency resource pools respectively, and the first information Let is used to determine the time offset corresponding to each time-frequency resource pool in the K time-frequency resource pools;
- the first time offset is the first time offset in the K time-frequency resource pools
- the time offset corresponding to the frequency resource pool, where the first time offset is equal to the start time of the first time-frequency resource set in the time domain and the start time of the first time-frequency resource pool in the time domain The time offset value between times; the first signaling is transmitted on the cellular link, and the first signal is transmitted on the secondary link.
- This application discloses a third node used for wireless communication, which is characterized by including:
- a second receiver receiving the first signal in the first time-frequency resource set
- the sender of the first signal receives first signaling, and the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1, and the first time-frequency resource
- the set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is one of the K time-frequency resource pools; the K time offsets are respectively the same as the K time-frequency resource pools One-to-one correspondence.
- the first signaling is used to determine the time offset corresponding to each of the K time-frequency resource pools; the first time offset is the K time In the offset, the time offset corresponding to the first time-frequency resource pool, where the first time offset is equal to the start time of the first time-frequency resource set in the time domain and the first time The time offset value between the start moments of the frequency resource pool in the time domain; the first signaling is transmitted on the cellular link, and the first signal is transmitted on the secondary link.
- this application has the following advantages:
- the base station configures V2X transmission and knows the location information of the UE under coverage
- the base station can indicate K time offsets, combined with scheduling, while uniformly configuring the time domain resources for V2X transmission through K
- the indication of time offset avoids Uu port interference to PC-5 port, thereby improving spectrum efficiency and avoiding fragmentation of time domain resources;
- the K sub-signaling can independently configure the K time offsets, thereby more flexibly indicating the time domain resources that cannot be used for V2X transmission in the K time-frequency resource pools, improving spectrum efficiency and increasing scheduling flexibility;
- Different subcarrier intervals correspond to different durations of multi-carrier symbols, which in turn correspond to different K time offset value ranges; the above design establishes the K time offset value ranges and subcarrier intervals The connection is more reasonable and avoids the introduction of excessive signaling overhead for indicating the K time offset values;
- the position of the first node relative to the base station will affect the degree of interference that the first node receives from the Uu ports of other UEs, and then establish K time offsets with the position information of the first node Contact, help configure V2X resources more efficiently and reduce interference.
- Fig. 1 shows a processing flowchart of a first node according to an embodiment of the present application
- Figure 2 shows a schematic diagram of a network architecture according to an embodiment of the present application
- Fig. 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application
- Fig. 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application
- Figure 5 shows a flowchart of the first signaling according to an embodiment of the present application
- Fig. 6 shows a schematic diagram of the technical solution in the present application according to an embodiment of the present application
- Fig. 7 shows a schematic diagram of a first time-frequency resource pool according to an embodiment of the present application
- FIG. 8 shows a schematic diagram of K time-frequency resource pools according to an embodiment of the present application.
- Fig. 9 shows a schematic diagram of a first time offset set according to an embodiment of the present application.
- FIG. 10 shows a schematic diagram of a second time-frequency resource set according to an embodiment of the present application.
- FIG. 11 shows a schematic diagram of a resource mapping manner of a first signal in the first time-frequency resource pool according to an embodiment of the present application
- FIG. 12 shows a schematic diagram of a resource mapping manner of a first signal in the first time-frequency resource pool according to another embodiment of the present application
- FIG. 13 shows a schematic diagram of the relationship between the K time offsets and the position information of the first node according to an embodiment of the present application
- Fig. 14 shows a structural block diagram used in the first node according to an embodiment of the present application.
- Fig. 15 shows a structural block diagram used in a second node according to an embodiment of the present application.
- Fig. 16 shows a structural block diagram used in the third node according to an embodiment of the present application.
- Embodiment 1 illustrates a processing flowchart of the first node, as shown in FIG. 1.
- each box represents a step.
- the first node in this application receives first signaling in step 101, and the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1;
- the first signal is sent in the first time-frequency resource set.
- the first time-frequency resource set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is one of the K time-frequency resource pools; K time offsets The shift amounts respectively correspond to the K time-frequency resource pools one-to-one, and the first signaling is used to determine the time offset corresponding to each of the K time-frequency resource pools;
- the first time offset is the time offset corresponding to the first time-frequency resource pool in the K time offsets, and the first time offset is equal to the first time-frequency resource set at The time offset value between the start time of the time domain and the start time of the first time-frequency resource pool in the time domain; the first signaling is transmitted on the cellular link, and the first signal is in the secondary Transmission on the link.
- the first signaling is MAC (Media Access Control, media access control) CE (Control Element, control element).
- the first signaling is physical layer dynamic signaling.
- the first signaling is RRC (Radio Resource Control, radio resource control) signaling.
- RRC Radio Resource Control, radio resource control
- the first signaling is UE-specific.
- the first signaling is exclusive to a terminal group, and the UE belongs to the terminal group.
- the first signaling is exclusive to a zone, and the UE is located in the zone.
- the sender of the first signaling is an NTN base station
- the NTN base station covers multiple zones
- the UE is located in one of the multiple zones.
- the first signaling is exclusive to a beam spot (Beam Spot), and the UE is located in the beam spot; or the first signaling is exclusive to a beam area (Beam Area), the The UE is located in the beam area.
- Beam Spot a beam spot
- Beam Area a beam area
- the sender of the first signaling is an NTN base station; the NTN base station covers multiple beam spots, and the UE is located in one of the multiple beam spots Or, the NTN base station covers multiple beam areas, and the UE is located in one beam area of the multiple beam areas.
- any one of the K time-frequency resource pools occupies a positive integer number of multi-carrier symbols in the time domain and a positive integer number of subcarriers in the frequency domain.
- any time-frequency resource pool in the K time-frequency resource pools includes M time slots.
- the M is equal to 1.
- the M is a positive integer greater than one.
- the M time slots are continuous in the time domain.
- any time-frequency resource pool in the K time-frequency resource pools includes M subframes.
- the M is equal to 1.
- the M is a positive integer greater than one.
- the M sub-frames are continuous in the time domain.
- the first time-frequency resource set occupies a positive integer number of multi-carrier symbols in the time domain and a positive integer number of subcarriers in the frequency domain.
- the unit of any time offset in the K time offsets is the length of time occupied by one multi-carrier symbol.
- the unit of any time offset in the K time offsets is microseconds.
- the unit of any time offset in the K time offsets is 1/30720 milliseconds.
- the unit of any one of the K time offsets is 1/X milliseconds, and the X is a positive integer multiple of 30720.
- any one of the K time offsets is a positive integer number of multi-carrier symbols.
- At least one of the K time offsets is equal to zero.
- the meaning of the one-to-one correspondence between the K time offsets and the K time-frequency resource pools respectively includes: a given time offset is the K time offsets
- the given time offset corresponds to a given timing-frequency resource pool in the K time-frequency resource pools; when the first node sends in the given timing-frequency resource pool For a given wireless signal, the time offset between the start time of the time domain resource occupied by the given wireless signal and the start time of the given timing-frequency resource pool in the time domain is equal to the given time Offset.
- the physical layer channel occupied by the given wireless signal includes PSSCH (Physical Sidelink Shared Channel, physical secondary link shared channel).
- PSSCH Physical Sidelink Shared Channel, physical secondary link shared channel
- the physical layer channel occupied by the given wireless signal includes PSFCH (Physical Sidelink Feedback Channel).
- PSFCH Physical Sidelink Feedback Channel
- the first time offset is equal to 0, and the start time of the first time-frequency resource set in the time domain is the same as the start time of the first time-frequency resource pool in the time domain.
- the first time offset is equal to the duration of N1 multi-carrier symbols, and the start time of the first time-frequency resource set in the time domain is greater than that of the first time-frequency resource pool in the time domain.
- the start time of is N1 multi-carrier symbols later, where N1 is a positive integer.
- the cut-off time of the first time-frequency resource set in the time domain is the same as the cut-off time of the first time-frequency resource pool in the time domain.
- the cut-off time of the first time-frequency resource set in the time domain is aligned with the subframe boundary, or the cut-off time of the first time-frequency resource set in the time domain is aligned with the slot boundary.
- the physical layer signal occupied by the first signal includes PSSCH.
- the first signal is a wireless signal.
- the first signal is a baseband signal.
- the transport layer channel occupied by the first signal includes SL-SCH (Sidelink Shared Channel, secondary link shared channel).
- SL-SCH Segmentlink Shared Channel, secondary link shared channel
- the cellular link includes a wireless link between the first node and the base station.
- the cellular link includes a wireless link between the first node and the second node in this application.
- the cellular link includes a wireless link between the terminal and the attached base station of the serving cell.
- the secondary link includes a PC-5 link.
- the secondary link includes a wireless link between the first node and the third node in this application.
- the secondary link includes a wireless link between the first node and the terminal device.
- the secondary link includes a wireless link between terminal devices.
- the secondary link includes a wireless link between UEs.
- the sender of the first signaling is the second node.
- the second node in this application is a base station in NTN.
- the second node in this application is a non-terrestrial base station.
- the second node in this application is GEO (Geostationary Earth Orbiting, synchronous earth orbit) satellite, MEO (Medium Earth Orbiting, medium earth orbit) satellite, LEO (Low Earth Orbit, low earth orbit) satellite , HEO (Highly Elliptical Orbiting) satellite or Airborne Platform (air platform).
- GEO Globalstar Earth Orbiting, synchronous earth orbit
- MEO Medium Earth Orbiting, medium earth orbit
- LEO Low Earth Orbit, low earth orbit
- HEO Highly Elliptical Orbiting Satellite
- Airborne Platform air platform
- the multi-carrier symbol in this application is an OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) symbol.
- the multi-carrier symbol in this application is SC-FDMA (Single-Carrier Frequency Division Multiple Access, Single-Carrier Frequency Division Multiple Access) symbol.
- the multi-carrier symbol in this application is a FBMC (Filter Bank Multi Carrier, filter bank multi-carrier) symbol.
- FBMC Filter Bank Multi Carrier, filter bank multi-carrier
- the multi-carrier symbol in this application is an OFDM symbol including a CP (Cyclic Prefix).
- the multi-carrier symbol in this application is a DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing) symbol including CP.
- DFT-s-OFDM Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing
- Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in FIG. 2.
- FIG. 2 illustrates a diagram of the network architecture 200 of 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) systems.
- the 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System, evolved packet system) 200 with some other suitable terminology.
- EPS 200 may include one or more UEs (User Equipment) 201, and include a UE 241 that performs secondary link communication with UE 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core, Evolved Packet Core)/5G-CN (5G-Core Network, 5G Core Network) 210, HSS (Home Subscriber Server) 220 and Internet service 230.
- UEs User Equipment
- NG-RAN Next Generation Radio Access Network
- EPC Evolved Packet Core, Evolved Packet Core
- 5G-Core Network 5G-Core Network
- HSS
- EPS can be interconnected with other access networks, but these entities/interfaces are not shown for simplicity. As shown in the figure, EPS provides packet switching services. However, those skilled in the art will easily understand that various concepts presented throughout this application can be extended to networks that provide circuit switching services or other cellular networks.
- NG-RAN includes NR Node B (gNB) 203 and other gNB 204.
- gNB203 provides user and control plane protocol termination towards UE201.
- the gNB203 can be connected to other gNB204 via an Xn interface (for example, backhaul).
- the gNB203 may also be called a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmit and receive node) or some other suitable terminology.
- gNB203 provides UE201 with an access point to EPC/5G-CN 210.
- Examples of UE201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices , Video devices, digital audio players (for example, MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any Other similar functional devices.
- SIP Session Initiation Protocol
- PDAs personal digital assistants
- satellite radios non-terrestrial base station communications
- satellite mobile communications global positioning systems
- multimedia devices Video devices
- digital audio players for example, MP3 players
- cameras game consoles
- drones aircraft
- narrowband IoT devices machine-type communication devices
- machine-type communication devices land vehicles, automobiles, wearable devices, or any Other similar functional devices.
- UE201 can also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, Mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other suitable term.
- the gNB203 is connected to EPC/5G-CN 210 through the S1/NG interface.
- EPC/5G-CN 210 includes MME (Mobility Management Entity)/AMF (Authentication Management Field)/UPF (User Plane Function, user plane function) 211, other MME/AMF/UPF214, S-GW (Service Gateway, Serving Gateway) 212 and P-GW (Packet Date Network Gateway, Packet Data Network Gateway) 213.
- MME/AMF/UPF211 is a control node that processes the signaling between UE201 and EPC/5G-CN 210.
- MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocol, Internet Protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW213.
- the P-GW213 provides UE IP address allocation and other functions.
- the P-GW213 is connected to the Internet service 230.
- the Internet service 230 includes the corresponding Internet protocol service of the operator, which may specifically include the Internet, Intranet, IMS (IP Multimedia Subsystem, IP Multimedia Subsystem), and packet switching streaming service.
- the UE201 corresponds to the first node in this application.
- the gNB203 corresponds to the second node in this application.
- the UE 241 corresponds to the third node in this application.
- the air interface between the UE201 and the gNB203 is a Uu interface.
- the air interface between the UE201 and the UE241 is a PC-5 interface.
- the wireless link between the UE201 and the gNB203 is a cellular link.
- the radio link between the UE201 and the UE241 is a secondary link.
- the first node in this application is a terminal covered by the gNB203.
- the third node in this application is a terminal covered by the gNB203.
- the UE201 and the UE241 belong to the same beam spot.
- the UE201 and the UE241 belong to the same beam area.
- the first node and the third node belong to a V2X pair (Pair).
- the first node is a car.
- the first node is a vehicle.
- the second node is a base station.
- the third node is a vehicle.
- the third node is a car.
- the third node is an RSU (Road Side Unit).
- the third node is a group header (Group Header) of a terminal group.
- the first node is an RSU.
- the first node is a group head of a terminal group.
- Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in FIG. 3.
- Figure 3 is a schematic diagram illustrating an embodiment of the radio protocol architecture for the user plane 350 and the control plane 300.
- Figure 3 shows three layers for the first communication node device (UE, gNB or RSU in V2X) and the second Communication node equipment (gNB, UE or RSU in V2X), or the radio protocol architecture of the control plane 300 between two UEs: layer 1, layer 2, and layer 3.
- Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions.
- the L1 layer will be referred to as PHY301 herein.
- Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device and the two UEs through PHY301.
- L2 layer 305 includes MAC (Medium Access Control) sublayer 302, RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and PDCP (Packet Data Convergence Protocol, packet data convergence protocol) sublayer 304. These sublayers terminate at the second communication node device.
- the PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels.
- the PDCP sublayer 304 also provides security by encrypting data packets, as well as providing support for handover between the second communication node devices and the first communication node device.
- the RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ.
- the MAC sublayer 302 provides multiplexing between logical and transport channels.
- the MAC sublayer 302 is also responsible for allocating various radio resources (for example, resource blocks) in a cell among the first communication node devices.
- the MAC sublayer 302 is also responsible for HARQ operations.
- the RRC (Radio Resource Control, Radio Resource Control) sublayer 306 in layer 3 (L3 layer) of the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and using the difference between the second communication node device and the first communication node device.
- the radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer).
- the radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is for the physical layer 351, L2
- the PDCP sublayer 354 in the layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 are basically the same as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also Provides header compression for upper layer data packets to reduce radio transmission overhead.
- the L2 layer 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol, Service Data Adaptation Protocol) sublayer 356.
- the SDAP sublayer 356 is responsible for the mapping between the QoS flow and the Data Radio Bearer (DRB). To support business diversity.
- the first communication node device may have several upper layers above the L2 layer 355, including a network layer (for example, an IP layer) terminating at the P-GW on the network side and another terminating at the connection.
- Application layer at one end for example, remote UE, server, etc.).
- the wireless protocol architecture in FIG. 3 is applicable to the first node in this application.
- the wireless protocol architecture in FIG. 3 is applicable to the second node in this application.
- the wireless protocol architecture in FIG. 3 is applicable to the third node in this application.
- the first signaling is generated in the RRC306.
- the first signal is generated in the PHY301 or the PHY351.
- the first signal is generated in the MAC352 or the MAC302.
- the first signal is generated in the RRC306.
- the second signaling is generated in the PHY301 or the PHY351.
- Embodiment 4 shows a schematic diagram of the first communication device and the second communication device according to the present application, as shown in FIG. 4.
- 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.
- the first communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, and a transmitter/receiver 454 And antenna 452.
- the second communication device 410 includes a controller/processor 475, a memory 476, a receiving processor 470, a transmitting processor 416, a multi-antenna receiving processor 472, a multi-antenna transmitting processor 471, a transmitter/receiver 418, and an antenna 420.
- the upper layer data packet from the core network is provided to the controller/processor 475.
- the controller/processor 475 implements the functionality of the L2 layer.
- the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logic and transport channels Multiplexing, and allocation of radio resources to the first communication device 450 based on various priority metrics.
- the controller/processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450.
- the transmission processor 416 and the multi-antenna transmission processor 471 implement various signal processing functions for the L1 layer (ie, physical layer).
- the transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift Keying (QPSK), M phase shift keying (M-PSK), M quadrature amplitude modulation (M-QAM)) signal cluster mapping.
- BPSK binary phase shift keying
- QPSK quadrature phase shift Keying
- M-PSK M phase shift keying
- M-QAM M quadrature amplitude modulation
- the multi-antenna transmission processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing to generate one or more spatial streams.
- the transmit processor 416 maps each spatial stream to subcarriers, multiplexes it with a reference signal (e.g., pilot) in the time and/or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate The physical channel that carries the multi-carrier symbol stream in the time domain.
- IFFT inverse fast Fourier transform
- the multi-antenna transmission processor 471 performs transmission simulation precoding/beamforming operations on the time-domain multi-carrier symbol stream.
- Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmission processor 471 into a radio frequency stream, and then provides it to a different antenna 420.
- each receiver 454 receives a signal through its corresponding antenna 452.
- Each receiver 454 recovers the information modulated on the radio frequency carrier, and converts the radio frequency stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456.
- the receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer.
- the multi-antenna receiving processor 458 performs reception analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454.
- the receiving processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multi-carrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain.
- FFT Fast Fourier Transform
- the reference signal will be used for channel estimation.
- the data signal is recovered after the multi-antenna detection in the multi-antenna receiving processor 458.
- the first communication device 450 is any spatial flow of the destination. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated.
- the receiving processor 456 then decodes and deinterleaves the soft decision to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel.
- the upper layer data and control signals are then provided to the controller/processor 459.
- the controller/processor 459 implements the functions of the L2 layer.
- the controller/processor 459 may be associated with a memory 460 that stores program codes and data.
- the memory 460 may be referred to as a computer-readable medium.
- the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression , Control signal processing to recover upper layer data packets from the core network.
- the upper layer data packets are then provided to all protocol layers above the L2 layer.
- Various control signals can also be provided to L3 for L3 processing.
- a data source 467 is used to provide upper layer data packets to the controller/processor 459.
- the data source 467 represents all protocol layers above the L2 layer.
- the controller/processor 459 implements the header based on the radio resource allocation Compression, encryption, packet segmentation and reordering, and multiplexing between logic and transport channels, implement L2 layer functions for user plane and control plane.
- the controller/processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410.
- the transmission processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmission processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, followed by transmission
- the processor 468 modulates the generated spatial stream into a multi-carrier/single-carrier symbol stream, which is subjected to an analog precoding/beamforming operation in the multi-antenna transmission processor 457 and then provided to different antennas 452 via the transmitter 454.
- Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmission processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.
- the function at the second communication device 410 is similar to that in the transmission from the second communication device 410 to the first communication device 450.
- Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470.
- the receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the functions of the L1 layer.
- the controller/processor 475 implements L2 layer functions.
- the controller/processor 475 may be associated with a memory 476 that stores program codes and data.
- the memory 476 may be referred to as a computer-readable medium.
- the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression , Control signal processing to recover upper layer data packets from UE450.
- the upper layer data packet from the controller/processor 475 may be provided to the core network.
- the first communication device 450 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to The at least one processor is used together, and the first communication device 450 means at least: receiving first signaling, the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1.
- the first time-frequency resource set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is among the K time-frequency resource pools One time-frequency resource pool; K time offsets correspond to the K time-frequency resource pools respectively, and the first signaling is used to determine each time-frequency in the K time-frequency resource pools
- the time offset corresponding to the resource pool; the first time offset is the time offset corresponding to the first time-frequency resource pool in the K time offsets, and the first time offset It is equal to the time offset value between the start moment of the first time-frequency resource set in the time domain and the start moment of the first time-frequency resource pool in the time domain; the first signaling is in the cellular link
- the first signal is transmitted on the secondary link.
- the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: receiving the first A signaling, the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1; and the first signal is sent in the first time-frequency resource set; the first time The set of frequency resources belongs to a first time-frequency resource pool, and the first time-frequency resource pool is a time-frequency resource pool among the K time-frequency resource pools; the K time offsets are respectively different from the K time-frequency resource pools.
- Resource pools have a one-to-one correspondence, and the first signaling is used to determine the time offset corresponding to each of the K time-frequency resource pools; the first time offset is the K The first time offset corresponding to the first time-frequency resource pool in the first time offsets is equal to the start time of the first time-frequency resource set in the time domain and the first time offset The time offset value between the start moments of the time-frequency resource pool in the time domain; the first signaling is transmitted on the cellular link, and the first signal is transmitted on the secondary link.
- the second communication device 410 device includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to Use at least one processor together.
- the second communication device 410 means at least: sending first signaling, the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1;
- the receiver includes a first node, and the first node sends a first signal in a first time-frequency resource set; the first time-frequency resource set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is One of the K time-frequency resource pools; K time offsets correspond to the K time-frequency resource pools respectively, and the first signaling is used to determine the K time-frequency resource pools The time offset corresponding to each time-frequency resource pool in the time-frequency resource pool; the first time offset is the time offset corresponding to the first time-frequency resource pool in the K time offsets The first time offset is equal to the time offset between the start moment of the first time
- the second communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: sending The first signaling, the first signaling is used to determine K time-frequency resource pools, and the K is a positive integer greater than 1.
- the receiver of the first signaling includes a first node, and the first The node sends the first signal in a first time-frequency resource set; the first time-frequency resource set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is one of the K time-frequency resource pools Time-frequency resource pool; K time offsets correspond to the K time-frequency resource pools respectively, and the first signaling is used to determine each time-frequency resource in the K time-frequency resource pools The time offset corresponding to the pool; the first time offset is the time offset corresponding to the first time-frequency resource pool in the K time offsets, and the first time offset is equal to The time offset value between the start moment of the first time-frequency resource set in the time domain and the start moment of the first time-frequency resource pool in the time domain; the first signaling is on a cellular link Transmission, the first signal is transmitted on the secondary link.
- the second communication device 410 device includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to Use at least one processor together.
- the second communication device 410 means at least: receive the first signal in the first time-frequency resource set; the sender of the first signal receives the first signaling, and the first signaling is used to determine K time Frequency resource pool, where K is a positive integer greater than 1; the first time-frequency resource set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is one of the K time-frequency resource pools Time-frequency resource pool; K time offsets correspond to the K time-frequency resource pools respectively, and the first signaling is used to determine each time-frequency resource in the K time-frequency resource pools The time offset corresponding to the pool; the first time offset is the time offset corresponding to the first time-frequency resource pool in the K time offsets, and the first time offset is equal to The time offset value between the start moment of the first time-frequency resource set
- the second communication device 410 device includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: The first signal is received in the first time-frequency resource set; the sender of the first signal receives the first signaling, and the first signaling is used to determine K time-frequency resource pools, where K is greater than 1.
- the first time-frequency resource set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is one of the K time-frequency resource pools; K time offsets Corresponding to the K time-frequency resource pools respectively, and the first signaling is used to determine the time offset corresponding to each time-frequency resource pool in the K time-frequency resource pools; first The time offset is the time offset corresponding to the first time-frequency resource pool in the K time offsets, and the first time offset is equal to the first time-frequency resource set in the time domain The time offset value between the start time of the first time-frequency resource pool and the start time of the first time-frequency resource pool in the time domain; the first signaling is transmitted on the cellular link, and the first signal is on the secondary link ⁇ Transfer.
- the first communication device 450 corresponds to the first node in this application.
- the second communication device 410 corresponds to the second node in this application.
- the second communication device 410 corresponds to the third node in this application.
- the first communication device 450 is a UE.
- the second communication device 410 is a base station.
- the second communication device 410 is a UE.
- At least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller/processor 459 is used to receive the first A signaling; at least one of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, and the controller/processor 475 is used to transmit the first Signaling; the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1.
- At least one of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller/processor 459 is used in the first
- the first signal is sent in the time-frequency resource set; at least one of the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, and the controller/processor 475 It is used to receive the first signal in the first time-frequency resource set.
- At least one of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller/processor 459 is used in the second The second signaling is sent in the time-frequency resource set; at least one of the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, and the controller/processor 475 One is used to receive the second signaling in the second set of time-frequency resources.
- Embodiment 5 illustrates a flow chart of the first signaling, as shown in FIG. 5.
- the first node U1 and the second node N2 communicate through the Uu link, and the first node U1 and the third node U3 communicate through the secondary link; the steps marked in the box F0 in the figure Is optional.
- step S10 For the first node U1, in step S10, receiving a first signaling; signaling transmitted in step S11 that the second frequency resource when the second set; in step S12 transmits a first signal at a first frequency resource set time .
- the first signaling transmitted in step S20 For the second node N2, the first signaling transmitted in step S20.
- step 30 the second signaling received at a second frequency when the resource set; receiving a first signal in step S31 in the first frequency resource set time.
- the first time-frequency resource set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is one of the K time-frequency resource pools; K time offsets The shift amounts respectively correspond to the K time-frequency resource pools one-to-one, and the first signaling is used to determine the time offset corresponding to each of the K time-frequency resource pools;
- the first time offset is the time offset corresponding to the first time-frequency resource pool in the K time offsets, and the first time offset is equal to the first time-frequency resource set at The time offset value between the start time of the time domain and the start time of the first time-frequency resource pool in the time domain;
- the first signaling is transmitted on the cellular link, and the first signal is in the secondary Transmission on the link;
- the second signaling includes a set of configuration information of the first signal, the second signaling is physical layer signaling;
- the second set of time-frequency resources belongs to the first time-frequency resource Pool, for a given subcarrier interval of the subcarrier occupied by the second signaling in the
- the first signaling includes K sub-signals, the K sub-signals are respectively used to determine the K time-frequency resource pools, and the K sub-signals are respectively used to determine the Said K time offsets.
- the K sub-signals are respectively used to determine the K frequency domain resource sets occupied by the K time-frequency resource pools; any of the K frequency domain resource sets A set of frequency domain resources includes a positive integer number of subcarriers.
- the K sub-signals are respectively used to determine the K time-domain resource sets occupied by the K time-frequency resource pools; any of the K time-domain resource sets A time domain resource set includes a positive integer number of multi-carrier symbols.
- any sub-signaling in the K sub-signaling corresponds to 1 bit, and the 1 bit is equal to "0", which means that the corresponding time offset is equal to 0, and the 1 bit is equal to "1" means that the corresponding time offset is equal to the first time offset.
- the first time offset is equal to T1 microseconds, and the T1 is a positive real number.
- the first time offset is equal to Y/X milliseconds
- the X is a positive integer multiple of 30720
- the Y is a positive integer.
- the first time offset is equal to T2 multi-carrier symbols, and the T2 is a positive integer.
- the first time offset has nothing to do with the K sub-signaling.
- the first time offset is configured through signaling other than the first signaling.
- the first time offset is related to the position of the first node U1.
- the first time offset is related to the distance between the first node U1 and the second node N2.
- the first time offset is related to the inclination angle between the second node N2 and the first node U1.
- any one of the K sub-signals corresponds to an L bit, and the L bit is used to indicate the corresponding time offset among the K time offsets .
- the number of bits of the information bit set for generating the first signaling is fixed.
- the number of bits of the information bit set for generating the first signaling is related to the value of K.
- the number of bits of the information bit set for generating the first signaling is variable.
- any one of the K time offsets belongs to a first time offset set, and the first time offset set includes a positive integer number of time offsets greater than 1. ; For a given sub-carrier interval of the sub-carrier occupied by the first signal in the frequency domain, the time offset included in the first time offset set is fixed.
- the first time offset set includes Q time offsets, and the Q is a positive integer greater than 1.
- the given sub-signaling is any one of the K sub-signaling
- the given time offset is the given time offset among the K time offsets.
- the time offset determined by the stator signaling, and the given stator signaling is used to indicate the given time offset from the Q time offsets.
- the first time offset set is a first type candidate time offset set among Q1 first type candidate time offset sets
- the Q1 first type candidate time offset sets are The candidate time offset sets correspond to Q1 different subcarrier intervals.
- any first-type candidate time offset set in the Q1 first-type candidate time offset sets includes a positive integer number of time offsets.
- the above sentence "For a given sub-carrier interval of the sub-carrier occupied by the first signal in the frequency domain, the time offset included in the first time offset set "The amount is fixed" means: the first time offset set includes Q time offsets, and the Q time offsets are only related to the subcarriers occupied by the first signal in the frequency domain.
- the subcarrier spacing is related.
- the “quantity is fixed” means that: the first time offset set includes Q time offsets, and when the subcarrier interval of the subcarrier occupied by the first signal in the frequency domain remains unchanged, so The Q time offsets remain unchanged.
- the physical layer signaling occupied by the second signaling is PSCCH (Physical Sidelink Control Channel, physical secondary link control channel).
- PSCCH Physical Sidelink Control Channel, physical secondary link control channel
- the second signaling is an SCI (Sidelink Control Information, secondary link control information).
- the second time-frequency resource set occupies a positive integer number of REs (Resource Element, resource particles), and any RE in the positive integer number of REs occupied by the second time-frequency resource set belongs to all The first time-frequency resource pool.
- REs Resource Element, resource particles
- the above sentence "For a given subcarrier interval of the subcarrier occupied by the second signaling in the frequency domain, the second time-frequency resource set is set at the start time of the time domain and the first "The length of the time interval between the start time of the time-frequency resource pool in the time domain is fixed" means that when the subcarrier interval of the subcarrier occupied by the second signaling in the frequency domain remains unchanged, The length of the time interval between the start moment of the second time-frequency resource set in the time domain and the start moment of the first time-frequency resource pool in the time domain remains unchanged.
- the sentence "The length of the time interval between the start time of the second time-frequency resource set in the time domain and the start time of the first time-frequency resource pool in the time domain is fixed.
- the meaning includes: the length of the time interval between the start moment of the second time-frequency resource set in the time domain and the start moment of the first time-frequency resource pool in the time domain is equal to zero.
- the sentence "The length of the time interval between the start time of the second time-frequency resource set in the time domain and the start time of the first time-frequency resource pool in the time domain is fixed.
- the meaning includes: the length of the time interval between the start moment of the second time-frequency resource set in the time domain and the start moment of the first time-frequency resource pool in the time domain is equal to P1 multi-carrier symbols, the P1 It is fixed.
- the sentence "The length of the time interval between the start time of the second time-frequency resource set in the time domain and the start time of the first time-frequency resource pool in the time domain is fixed.
- the meaning includes: the length of the time interval between the start time of the second time-frequency resource set in the time domain and the start time of the first time-frequency resource pool in the time domain is equal to P1 multi-carrier symbols, when the When the subcarrier interval of the subcarrier occupied by the second signaling in the frequency domain remains unchanged, the P1 is unchanged.
- the second signaling is used to indicate the time domain resources occupied by the first time-frequency resource set.
- the second signaling is used to indicate frequency domain resources occupied by the first time-frequency resource set.
- the second signaling is used to indicate the deadline of the first time-frequency resource set in the time domain.
- the configuration information set of the first signal included in the second signaling includes frequency domain resources occupied by the first signal, time domain resources occupied by the first signal, and MCS (Modulation and Coding Status) used by the first signal, RV (Redundancy Version) corresponding to the first signal, HARQ (Hybrid Automatic Repeat Request) corresponding to the first signal, mixed Automatic retransmission request) process number (Process Number), or at least one of NDI (New Data Indicator) indicating the first signal.
- MCS Modulation and Coding Status
- the first signaling is used to determine a resource mapping manner of the first signal in the first time-frequency resource pool.
- the first transmission block is used to generate the first signal, the size of the first transmission block and the resource of the first signal in the first time-frequency resource pool
- the mapping method is related.
- the first signaling is used to indicate a resource mapping manner of the first signal in the first time-frequency resource pool.
- the first signaling is used to indicate that the resource mapping mode of the first signal in the first time-frequency resource pool is Puncture.
- the resource mapping mode of the first signal in the first time-frequency resource pool in the above sentence is puncturing means that the first bit block is used to generate the first bit block.
- a signal the first bit block generates R modulation symbols after operations such as modulation and coding, the R modulation symbols are mapped from the start time of the first time-frequency resource pool, and the R modulation symbols A positive integer number of modulation symbols located from the start time of the first time-frequency resource pool to the start time of the first time-frequency resource set are punctured.
- the first signaling is used to indicate that the resource mapping mode of the first signal in the first time-frequency resource pool is rate-mactching.
- the resource mapping mode of the first signal in the first time-frequency resource pool in the above sentence is rate matching means that the first bit block is used to generate the first bit block.
- a signal, the first bit block is subjected to operations such as modulation and coding to generate R modulation symbols, and the R modulation symbols are mapped from the start time of the first time-frequency resource set.
- the K time offsets are related to the location information of the first node U1.
- the meaning of the K time offsets in the above sentence related to the location information of the first node U1 includes: any time offset in the K time offsets
- the quantity belongs to a second time offset set, and the second time offset set includes Q2 time offsets, and the Q2 time offsets are related to the position information of the first node U1.
- the location information of the first node U1 includes the linear distance between the first node U1 and the second node N2.
- the location information of the first node U1 includes an inclination angle between the second node N2 and the first node U1.
- the location information of the first node U1 includes the transmission delay between the first node U1 and the second node N2.
- the location information of the first node U1 includes the beam point to which the first node U1 belongs, or includes the beam interval to which the first node U1 belongs.
- the coverage area of the second node N2 is divided into Q3 areas, where Q3 is a positive integer greater than 1, and the Q3 areas respectively correspond to Q3 second type time offsets
- the first node U1 belongs to a given area of the Q3 areas, and the given area corresponds to a second time offset set in the Q3 second type time offset sets, the The second time offset set includes Q2 time offsets, and any time offset in the K time offsets is one of the Q2 time offsets; so Said Q2 is a positive integer greater than 1.
- Embodiment 6 illustrates a schematic diagram of a technical solution, as shown in FIG. 6.
- the first node and the third node are under the coverage of the second node at the same time, and V2X communication is carried out between the first node and the third node; at the same time, the fourth node is also covered by the second node. Coverage, and communication between the fourth node and the second node is performed on the cellular link; the second node configures the first node and the third node with the first time domain resource set identified in the figure for V2X transmission. The transmission delay difference between the first node and the fourth node to reach the second node is large.
- the fourth node shown in the figure is in the second node.
- the transmission of the cellular link sent in the time domain resource set will still be shifted to the first time domain resource set considered by the first node;
- the problems solved by the solution proposed in this application include those described in this embodiment Problem: TA1 in the figure corresponds to the TA from the first node to the second node, and TA2 corresponds to the TA from the fourth node to the second node.
- the fourth node is a ground terminal device.
- the fourth node is a low-altitude device.
- the fourth node is a device other than a base station.
- the fourth node and the first node belong to different beam spots.
- the fourth node and the first node belong to different beam intervals.
- the distance between the fourth node and the first node is not less than the product of the speed of light and the duration of one multi-carrier symbol.
- Embodiment 7 illustrates a schematic diagram of a first time-frequency resource pool, as shown in FIG. 7.
- the first time-frequency resource pool includes a first time-frequency resource set, the first time-frequency resource set corresponds to a first time offset value, and the first time offset value is equal to the first time-frequency resource set.
- the time offset value between the start time of the first time-frequency resource set in the time domain and the start time of the first time-frequency resource pool in the time domain.
- the data channel on the secondary link sent in the first time-frequency resource pool starts from the first time-frequency resource set.
- the channels other than the data channel on the secondary link sent in the first time-frequency resource pool start from the first time-frequency resource pool.
- Embodiment 8 illustrates a schematic diagram of K time-frequency resource pools, as shown in FIG. 8.
- the K time-frequency resource pools shown in the figure are TDM (Time Division Multiplexing, time division multiplexing mode) in the time domain, and the given time-frequency resource pool shown in the figure is any of the K time-frequency resource pools.
- TDM Time Division Multiplexing, time division multiplexing mode
- a time-frequency resource pool the given timing-frequency resource pool includes a given timing-frequency resource set, a given time offset in the K time offsets corresponds to the given timing-frequency resource set, when the first node When sending a given wireless signal in the given timing-frequency resource pool, the difference between the start time of the time domain resource occupied by the given radio signal and the start moment of the given timing-frequency resource pool in the time domain
- the time offset value is equal to the given time offset.
- At least two of the K time offsets have different values.
- the values of any two time offsets that are not equal to 0 in the K time offsets are the same.
- the given wireless signal includes a data channel.
- the physical layer channel occupied by the given wireless signal includes a PSFCH.
- the physical layer channel occupied by the given wireless signal only includes the PSSCH.
- the physical layer channels occupied by the given wireless signal include channels other than the PSCCH.
- Embodiment 9 illustrates a schematic diagram of the first time offset set, as shown in FIG. 9.
- the first time offset set shown in the figure is a first type candidate time offset set among Q1 first type candidate time offset sets, and the Q1 first type candidate time offset sets
- the quantity set corresponds to Q1 different subcarrier intervals
- the first time offset set corresponds to the first subcarrier interval, when the subcarrier interval of the subcarrier occupied by the first signal is equal to the first subcarrier In the interval, the first time offset is a time offset in the first time offset set
- the Q1 candidate time offset sets of the first type shown in the figure are respectively the first type Candidate time offset set #1 to the first type candidate time offset set #Q1
- the Q1 different subcarrier intervals are subcarrier interval #1 to subcarrier interval #Q1
- the subcarrier interval# 1 to subcarrier interval #Q1 respectively correspond to the first type candidate time offset set #1 to the first type candidate time offset set #Q1 one-to-one.
- the Q1 different sub-carrier intervals include one or more sub-carrier intervals of 15 kHz (kilohertz), 30 kHz, 60 kHz, or 120 kHz.
- the Q1 different sub-carrier intervals include one or more sub-carrier intervals among 3.75 kHz (kilohertz), 7.5 kHz, or 15 kHz.
- At least one time offset does not belong to any two first-type candidate time offset sets in the Q1 first-type candidate time offset sets.
- Embodiment 10 illustrates a schematic diagram of a second time-frequency resource set, as shown in FIG. 10.
- the first time-frequency resource pool includes a first time-frequency resource set and a second time-frequency resource set; the start time of the second time-frequency resource set in the time domain and the first time-frequency resource The length of the time interval between the start time of the pool in the time domain is fixed and equal to the second time offset; the start time of the first time-frequency resource set in the time domain and the first time-frequency resource The length of the time interval between the start moments of the pool in the time domain is equal to the first time offset; the second time offset is not equal to the first time offset.
- the first set of time-frequency resources and the second set of time-frequency resources are orthogonal in the time-frequency domain.
- Embodiment 11 illustrates a schematic diagram of a resource mapping manner of a first signal in the first time-frequency resource pool, as shown in FIG. 11.
- the first signal is mapped to the first time-frequency resource pool through puncturing.
- the first data block is used to generate the first signal
- the first data block is used to generate X modulation symbols
- the X modulation symbols are obtained from the first time-frequency resource pool.
- the included start multi-carrier symbols of the time domain start to map, and modulation symbols that are earlier than the start multi-carrier symbols of the time domain included in the first time-frequency resource set are punctured.
- Embodiment 12 illustrates another schematic diagram of the resource mapping manner of the first signal in the first time-frequency resource pool, as shown in FIG. 12.
- the first signal is mapped to the first time-frequency resource pool by way of rate matching.
- a first data block is used to generate the first signal, the first data block is used to generate X modulation symbols, and the X modulation symbols are derived from the first time-frequency resource set.
- the modulation symbols of the first multi-carrier symbols included in the time domain start to be mapped into the first time-frequency resource set.
- Embodiment 13 illustrates a schematic diagram of the relationship between the K time offsets and the position information of the first node, as shown in FIG. 13.
- the coverage area of the second node N2 is divided into Q3 areas, where Q3 is a positive integer greater than 1, and the Q3 areas respectively correspond to Q3 second type time offset sets;
- the first node U1 belongs to a given area of the Q3 areas, and the given area corresponds to a second time offset set in the Q3 second type time offset sets, and the second time offset
- the offset set includes Q2 time offsets, and any one of the K time offsets is one of the Q2 time offsets; the Q2 is greater than A positive integer of 1.
- the Q3 regions shown in the figure are respectively region #1 to region #Q3, and the Q3 second-type time offset sets are respectively the second-type time offset set #1 to the second-type time offset Collection #Q3.
- the Q3 regions correspond to Q3 beam spots respectively.
- the Q3 regions correspond to Q3 beam intervals respectively.
- the Q3 regions respectively correspond to Q3 different terminal-to-base station transmission delay delay ranges.
- Embodiment 14 illustrates a structural block diagram in the first node, as shown in FIG. 14.
- the first node 1400 includes a first receiver 1401 and a first transceiver 1402.
- the first receiver 1401 receives first signaling, where the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1;
- the first transmitter 1402 sends the first signal in the first time-frequency resource set
- the first time-frequency resource set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is one of the K time-frequency resource pools; K time offsets The shift amounts respectively correspond to the K time-frequency resource pools one-to-one, and the first signaling is used to determine the time offset corresponding to each of the K time-frequency resource pools;
- the first time offset is the time offset corresponding to the first time-frequency resource pool in the K time offsets, and the first time offset is equal to the first time-frequency resource set at The time offset value between the start time of the time domain and the start time of the first time-frequency resource pool in the time domain; the first signaling is transmitted on the cellular link, and the first signal is in the secondary Transmission on the link.
- the first signaling includes K sub-signals, the K sub-signals are respectively used to determine the K time-frequency resource pools, and the K sub-signals are respectively used to determine the Said K time offsets.
- any one of the K time offsets belongs to a first time offset set, and the first time offset set includes a positive integer number of time offsets greater than 1. ; For a given sub-carrier interval of the sub-carrier occupied by the first signal in the frequency domain, the time offset included in the first time offset set is fixed.
- the first transmitter 1402 sends second signaling in a second set of time-frequency resources;
- the second signaling includes a set of configuration information of the first signal, and the second signaling is Physical layer signaling;
- the second time-frequency resource set belongs to the first time-frequency resource pool, and for a given subcarrier interval of the subcarrier occupied by the second signaling in the frequency domain, the second The length of the time interval between the start moment of the time-frequency resource set in the time domain and the start moment of the first time-frequency resource pool in the time domain is fixed.
- the first signaling is used to determine a resource mapping manner of the first signal in the first time-frequency resource pool.
- the K time offsets are related to the location information of the first node.
- the first receiver 1401 includes at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller/processor 459 in the fourth embodiment.
- the first transmitter 1402 includes at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller/processor 459 in the fourth embodiment.
- Embodiment 15 illustrates a structural block diagram in the second node, as shown in FIG. 15.
- the second node 1500 includes a second transmitter 1501.
- the second transmitter 1501 sends first signaling, where the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1;
- the recipient of the first signaling includes a first node, and the first node sends the first signal in the first time-frequency resource set;
- the first time-frequency resource set belongs to the first time-frequency resource set Resource pool, the first time-frequency resource pool is one of the K time-frequency resource pools; K time offsets correspond to the K time-frequency resource pools respectively, and the The first signaling is used to determine the time offset corresponding to each time-frequency resource pool in the K time-frequency resource pools;
- the first time offset is the time offset in the K time-frequency resource pools The time offset corresponding to the first time-frequency resource pool, where the first time offset is equal to the start time of the first time-frequency resource set in the time domain and the first time-frequency resource pool in the time domain
- the value of the time offset between the start moments; the first signaling is transmitted on the cellular link, and the first signal is transmitted on the secondary link.
- the first signaling includes K sub-signals, the K sub-signals are respectively used to determine the K time-frequency resource pools, and the K sub-signals are respectively used to determine the Said K time offsets.
- any one of the K time offsets belongs to a first time offset set, and the first time offset set includes a positive integer number of time offsets greater than 1. ; For a given sub-carrier interval of the sub-carrier occupied by the first signal in the frequency domain, the time offset included in the first time offset set is fixed.
- the first signaling is used to determine the resource mapping manner of the first signal in the first time-frequency resource pool.
- the K time offsets are related to the location information of the first node.
- the second transmitter 1501 includes at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, and the controller/processor 475 in the fourth embodiment.
- Embodiment 16 illustrates a structural block diagram in the third node, as shown in FIG. 16.
- the third node 1600 includes a second receiver 1601.
- the second receiver 1601 receives the first signal in the first time-frequency resource set
- the sender of the first signal receives first signaling, and the first signaling is used to determine K time-frequency resource pools, where K is a positive integer greater than 1;
- the time-frequency resource set belongs to a first time-frequency resource pool, and the first time-frequency resource pool is one of the K time-frequency resource pools; the K time offsets are respectively different from the K time-frequency resource pools.
- Frequency resource pools correspond one to one, and the first signaling is used to determine the time offset corresponding to each of the K time-frequency resource pools; the first time offset is the The time offset corresponding to the first time-frequency resource pool in the K time offsets, where the first time offset is equal to the start time of the first time-frequency resource set in the time domain and the The time offset value between the start moments of the first time-frequency resource pool in the time domain; the first signaling is transmitted on the cellular link, and the first signal is transmitted on the secondary link.
- the first signaling includes K sub-signals, the K sub-signals are respectively used to determine the K time-frequency resource pools, and the K sub-signals are respectively used to determine the Said K time offsets.
- any one of the K time offsets belongs to a first time offset set, and the first time offset set includes a positive integer number of time offsets greater than 1. ; For a given sub-carrier interval of the sub-carrier occupied by the first signal in the frequency domain, the time offset included in the first time offset set is fixed.
- the second receiver 1601 receives second signaling in a second set of time-frequency resources; the second signaling includes a set of configuration information of the first signal, and the second signaling is Physical layer signaling; the second time-frequency resource set belongs to the first time-frequency resource pool, and for a given subcarrier interval of the subcarrier occupied by the second signaling in the frequency domain, the second The length of the time interval between the start moment of the time-frequency resource set in the time domain and the start moment of the first time-frequency resource pool in the time domain is fixed.
- the first signaling is used to determine a resource mapping manner of the first signal in the first time-frequency resource pool.
- the K time offsets are related to the location information of the first node.
- the second receiver 1601 includes at least the first four of the antenna 420, the transmitter 418, the multi-antenna receiving processor 472, the receiving processor 470, and the controller/processor 475 in the fourth embodiment.
- each module unit in the above-mentioned embodiment can be realized in the form of hardware or software function module, and this application is not limited to the combination of software and hardware in any specific form.
- the first and second nodes in this application include, but are not limited to, mobile phones, tablets, notebooks, network cards, low-power devices, eMTC devices, NB-IoT devices, in-vehicle communication devices, vehicles, vehicles, RSUs, aircraft , Aircraft, drones, remote control aircraft and other wireless communication equipment.
- the base stations in this application include, but are not limited to, macro cell base stations, micro cell base stations, home base stations, relay base stations, eNB, gNB, transmission and reception nodes TRP, GNSS, relay satellites, satellite base stations, aerial base stations, RSUs and other wireless communication equipment .
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Abstract
Description
Claims (11)
- 一种被用于无线通信的第一节点,其特征在于包括:第一接收机,接收第一信令,所述第一信令被用于确定K个时频资源池,所述K是大于1的正整数;第一发射机,在第一时频资源集合中发送第一信号;其中,所述第一时频资源集合属于第一时频资源池,所述第一时频资源池是所述K个时频资源池中的一个时频资源池;K个时间偏移量分别与所述K个时频资源池一一对应,所述第一信令被用于确定所述K个时频资源池中的每个时频资源池所对应的时间偏移量;第一时间偏移量是所述K个时间偏移量中所述第一时频资源池所对应的时间偏移量,所述第一时间偏移量等于所述第一时频资源集合在时域的起始时刻和所述第一时频资源池在时域的起始时刻之间的时间偏移值;所述第一信令在蜂窝链路上传输,所述第一信号在副链路上传输。
- 根据权利要求1所述的第一节点,其特征在于,所述第一信令包括K个子信令,所述K个子信令分别被用于确定所述K个时频资源池,且所述K个子信令分别被用于确定所述K个时间偏移量。
- 根据权利要求1或2所述的第一节点,其特征在于,所述K个时间偏移量中的任意一个时间偏移量属于第一时间偏移量集合,所述第一时间偏移量集合包括大于1的正整数个时间偏移量;对于给定的所述第一信号在频域所占用的子载波的子载波间隔,所述第一时间偏移量集合所包括的时间偏移量是固定的。
- 根据权利要求1至3中任一权利要求所述的第一节点,其特征在于,所述第一发射机在第二时频资源集合中发送第二信令;所述第二信令包括所述第一信号的配置信息集合,所述第二信令是物理层信令;所述第二时频资源集合属于所述第一时频资源池,对于给定的所述第二信令在频域所占用的子载波的子载波间隔,所述第二时频资源集合在时域的起始时刻和所述第一时频资源池在时域的起始时刻之间的时间间隔长度是固定的。
- 根据权利要求1至4中任一权利要求所述的第一节点,其特征在于,所述第一信令被用于确定所述第一信号在所述第一时频资源池中的资源映射方式。
- 根据权利要求1至5中任一权利要求所述的第一节点,其特征在于,所述K个时间偏移量与所述第一节点的位置信息有关。
- 一种被用于无线通信的第二节点,其特征在于包括:第二发射机,发送第一信令,所述第一信令被用于确定K个时频资源池,所述K是大于1的正整数;其中,所述第一信令的接收者包括第一节点,所述第一节点在第一时频资源集合中发送第一信号;所述第一时频资源集合属于第一时频资源池,所述第一时频资源池是所述K个时频资源池中的一个时频资源池;K个时间偏移量分别与所述K个时频资源池一一对应,所述第一信令被用于确定所述K个时频资源池中的每个时频资源池所对应的时间偏移量;第一时间偏移量是所述K个时间偏移量中所述第一时频资源池所对应的时间偏移量,所述第一时间偏移量等于所述第一时频资源集合在时域的起始时刻和所述第一时频资源池在时域的起始时刻之间的时间偏移值;所述第一信令在蜂窝链路上传输,所述第一信号在副链路上传输。
- 一种被用于无线通信的第三节点,其特征在于包括:第二接收机,在第一时频资源集合中接收第一信号;其中,所述第一信号的发送者接收第一信令,所述第一信令被用于确定K个时频资源池,所述K是大于1的正整数;所述第一时频资源集合属于第一时频资源池,所述第一时频资源池是所述K个时频资源池中的一个时频资源池;K个时间偏移量分别与所述K个时频资源池一一对应,所述第一信令被用于确定所述K个时频资源池中的每个时频资源池所对应的时间偏移量;第一时间偏移量是所述K个时间偏移量中所述第一时频资源池所对应的时间偏移量,所述第一时间偏移量等于所述第一时频资源集合在时域的起始时刻和所述第一时频资源池在时域的起始时刻之间的时间偏移值;所述第一信令在蜂窝链路上传输,所述第一信号在副链路上传输。
- 一种被用于无线通信的第一节点中的方法,其特征在于包括:接收第一信令,所述第一信令被用于确定K个时频资源池,所述K是大于1的正整数;在第一时频资源集合中发送第一信号;其中,所述第一时频资源集合属于第一时频资源池,所述第一时频资源池是所述K个时频资源池中的一个时频资源池;K个时间偏移量分别与所述K个时频资源池一一对应,所述第一信令被用于确定所述K个时频资源池中的每个时频资源池所对应的时间偏移量;第一时间偏移量是所述K个时间偏移量中所述第一时频资源池所对应的时间偏移量,所述第一时间偏移量等于所述第一时频资源集合在时域的起始时刻和所述第一时频资源池在时域的起始时刻之间的时间偏移值;所述第一信令在蜂窝链路上传输,所述第一信号在副链路上传输。
- 一种被用于无线通信的第二节点中的方法,其特征在于包括:发送第一信令,所述第一信令被用于确定K个时频资源池,所述K是大于1的正整数;其中,所述第一信令的接收者包括第一节点,所述第一节点在第一时频资源集合中发送第一信号;所述第一时频资源集合属于第一时频资源池,所述第一时频资源池是所述K个时频资源池中的一个时频资源池;K个时间偏移量分别与所述K个时频资源池一一对应,所述第一信令被用于确定所述K个时频资源池中的每个时频资源池所对应的时间偏移量;第一时间偏移量是所述K个时间偏移量中所述第一时频资源池所对应的时间偏移量,所述第一时间偏移量等于所述第一时频资源集合在时域的起始时刻和所述第一时频资源池在时域的起始时刻之间的时间偏移值;所述第一信令在蜂窝链路上传输,所述第一信号在副链路上传输。
- 一种被用于无线通信的第三节点中的方法,其特征在于包括:在第一时频资源集合中接收第一信号;其中,所述第一信号的发送者接收第一信令,所述第一信令被用于确定K个时频资源池,所述K是大于1的正整数;所述第一时频资源集合属于第一时频资源池,所述第一时频资源池是所述K个时频资源池中的一个时频资源池;K个时间偏移量分别与所述K个时频资源池一一对应,所述第一信令被用于确定所述K个时频资源池中的每个时频资源池所对应的时间偏移量;第一时间偏移量是所述K个时间偏移量中所述第一时频资源池所对应的时间偏移量,所述第一时间偏移量等于所述第一时频资源集合在时域的起始时刻和所述第一时频资源池在时域的起始时刻之间的时间偏移值;所述第一信令在蜂窝链路上传输,所述第一信号在副链路上传输。
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