CN112118631B - Method and apparatus in a node for wireless communication - Google Patents

Method and apparatus in a node for wireless communication Download PDF

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Publication number
CN112118631B
CN112118631B CN201910539072.6A CN201910539072A CN112118631B CN 112118631 B CN112118631 B CN 112118631B CN 201910539072 A CN201910539072 A CN 201910539072A CN 112118631 B CN112118631 B CN 112118631B
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signaling
node
time interval
multicarrier symbols
symbols
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CN112118631A (en
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蒋琦
张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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Priority to CN202310929722.4A priority Critical patent/CN116782397A/en
Priority to CN201910539072.6A priority patent/CN112118631B/en
Priority to PCT/CN2020/094137 priority patent/WO2020253530A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

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

Abstract

A method and apparatus in a node for wireless communication is disclosed. The first node first receives first signaling, the first signaling being used to indicate a first set of time units; second transmitting second signaling, the second signaling being used to indicate the first time interval; subsequently receiving third signaling indicating the first set of multicarrier symbols and the first scheduling information; finally, determining whether to transmit a first signal according to the relation between a second multi-carrier symbol set and the first time unit set; the first scheduling information is applied to the first signal, and a time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is a first time interval. The application establishes a connection between the transmission of the first signal and the first time interval, and avoids the interference of the cellular link to the auxiliary link through the second signaling, thereby improving the overall performance of the system.

Description

Method and apparatus in a node for wireless communication
Technical Field
The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a method and apparatus for resource selection and resource allocation in a system with a large transmission delay.
Background
For the rapidly evolving internet of vehicles (V2X) service, 3GPP has also begun to initiate standard formulation and research work under the NR framework. The 3GPP has completed the requirement making work for the 5g v2x service and written in the standard TS 22.886. The 3GPP defines a 4-large application scenario group (Use Case Groups) for 5g v2x services, including: auto-queuing Driving (Vehicles Platnooning), support Extended sensing (Extended sensing), semi/full automatic Driving (Advanced Driving) and Remote Driving (Remote Driving). In the current V2X system, the time-frequency resource configured based on the base station is simultaneously supported for V2X transmission, and the sending end of V2X determines that the time-frequency resource is used for V2X transmission through perception measurement (Sensing Measurement).
Meanwhile, in order to be able to adapt to various application scenarios and meet different requirements, a research project of Non-terrestrial networks (NTN, non-Terrestrial Networks) under NR is also passed on the 3gpp ran #75 meeting, and the research project starts in the R15 version. The decision to start to study solutions in NTN networks is made at 3gpp ran#79 full meeting, then WI is started in R16 or R17 version to standardize the related technology.
Disclosure of Invention
The NTN network has the advantage of wide coverage, when the NTN is combined with the V2X technology, the NTN network can configure time-frequency resources for V2X transmission for geographic positions which are not covered by a ground base station, and then the time-frequency resources for actual transmission are determined between V2X terminals based on the existing sending mode. However, compared with the existing terrestrial cellular network, the NTN network has a path delay far greater than that of the terrestrial base station, and the uplink transmission power value for the satellite is also larger, so that the interference of the cellular link to the V2X link transmission and the corresponding interference coordination method need to be reconsidered.
Based on the new application scenario and the requirements, the application discloses a solution, and it is to be noted that, under the condition of no conflict, the embodiments of the first node and the third node and the features in the embodiments of the present application can be applied to the base station, and the embodiments of the second node and the features in the embodiments of the present application can be applied to the terminal. Meanwhile, the embodiments of the present application and the features in the embodiments may be arbitrarily combined with each other without collision.
The application discloses a method used in a first node of wireless communication, which is characterized by comprising the following steps:
Receiving first signaling, the first signaling being used to indicate a first set of time units;
transmitting second signaling, the second signaling being used to indicate the first time interval;
receiving third signaling, wherein the third signaling indicates a first multi-carrier symbol set and first scheduling information;
discarding wireless transmission in the first set of multicarrier symbols when the second set of multicarrier symbols belongs to the first set of time units; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the principle of the above method is: in the current V2X system, the transmission delay often does not exceed the duration of one multi-carrier symbol, so that as long as a terminal aligns the transmission time with a base station, interference is not generated between V2X transmission and Uu port uplink transmission in different time slots of a reference base station time sequence; in the NTN system, the transmission delay is large, reaching several or even tens of milliseconds; further, when a terminal of one NTN transmits uplink, even if V2X and NTN are configured in different time slots from the base station side, the transmission of NTN is shifted to the V2X subframe, which results in interference of Uu link to V2X.
As an embodiment, the above method has the following advantages: the first time interval corresponds to delay between a first node and an NTN base station, and the second multi-carrier symbol set corresponds to time domain resources to which wireless signals transmitted in the first multi-carrier symbol set on a Uu port caused by the delay can be spread; further, when the second set of multicarrier symbols coincides with the first set of time units, this means that the transmission on Uu will have an impact on V2X, which in turn requires avoiding the transmission on Uu.
As an embodiment, another benefit of the above method is that: and transmitting the first time interval to an NTN base station through a second signaling, wherein when the first node potentially generates interference to V2X transmission in a configured first time unit set aiming at uplink transmission of the NTN base station, the NTN base station avoids scheduling the first node in the second multi-carrier symbol set.
The application discloses a method used in a first node of wireless communication, which is characterized by comprising the following steps:
receiving first signaling, the first signaling being used to indicate a first set of time units;
transmitting second signaling, the second signaling being used to indicate the first time interval;
Receiving third signaling, wherein the third signaling indicates a first multi-carrier symbol set and first scheduling information;
when the second multi-carrier symbol set belongs to the first time unit set, executing first monitoring to judge whether wireless transmission is carried out in the first multi-carrier symbol set; if yes, sending a first signal in the first multi-carrier symbol set; if not, discarding wireless transmission in the first multi-carrier symbol set; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the above method has the following advantages: when the second multi-carrier symbol set belongs to the first time unit set, it is indicated that the transmission of the first node will cause interference to the transmission of V2X, and then the first node further determines whether the transmission of V2X exists in the periphery through the first monitoring, so that unnecessary resource waste caused by no transmission of V2X in the periphery is avoided, and the overall spectrum efficiency is improved.
According to one aspect of the present application, the method is characterized by comprising:
receiving a fourth signaling; the fourth signaling is used to determine a second time interval, the first time interval being related to the second time interval.
As an embodiment, the above method has the following advantages: and the NTN base station transmits information such as the base station type, the downward inclination angle or the height of the base station of the NTN base station through the fourth signaling to help the first node to determine the first time interval.
According to one aspect of the present application, the method is characterized by comprising:
detecting a first type of signal set; the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, and the first set of signals is used to trigger the transmission of the second signaling.
As an embodiment, the above method has the following advantages: triggering the sending of the second signaling through the sending, and further only when detecting that the V2X transmission exists in the periphery, indicating the base station to avoid interference on the V2X transmission in a scheduling mode.
The application discloses a method used in a second node of wireless communication, which is characterized by comprising the following steps:
transmitting first signaling, the first signaling being used to indicate a first set of time units;
Receiving second signaling, the second signaling being used to indicate a first time interval;
transmitting third signaling, wherein the third signaling indicates the first multi-carrier symbol set and the first scheduling information;
discarding wireless reception in the first set of multicarrier symbols for a first node when the second set of multicarrier symbols belongs to the first set of time units, the first node being a sender of the second signaling; receiving a first signal in a second set of multicarrier symbols when the second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
The application discloses a method used in a second node of wireless communication, which is characterized by comprising the following steps:
transmitting first signaling, the first signaling being used to indicate a first set of time units;
Receiving second signaling, the second signaling being used to indicate a first time interval;
transmitting third signaling, wherein the third signaling indicates the first multi-carrier symbol set and the first scheduling information;
detecting a first signal in the first set of multicarrier symbols;
wherein when a second set of multi-carrier symbols belongs to the first set of time units, a first node performs a first listening to determine whether to wirelessly transmit in the first set of multi-carrier symbols; if yes, the first node sends a first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the second multi-carrier symbol set; when the second multi-carrier symbol set does not belong to the first time unit set, the first node transmits a first signal in the first multi-carrier symbol set; the first node is the sender of the second signaling; the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
According to one aspect of the present application, the method is characterized by comprising:
transmitting a fourth signaling; the fourth signaling is used to determine a second time interval, the first time interval being related to the second time interval.
The application discloses a method used in a third node of wireless communication, which is characterized by comprising the following steps:
transmitting a first set of signals;
wherein the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, the first set of signals being used to trigger transmission of second signaling; the second signaling is used to indicate a first time interval, the time interval between any one of the second set of multicarrier symbols and a corresponding multicarrier symbol in the first set of multicarrier symbols being the first time interval; the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; third signaling indicating the first set of multicarrier symbols and the first scheduling information, the first signaling being used to indicate a first set of time units; when the second multi-carrier symbol set belongs to the first time unit set, a first node gives up wireless transmission in the first multi-carrier symbol set; when the second set of multicarrier symbols does not belong to the first set of time units, a first node transmits the first signal in the first set of multicarrier symbols; or when the second multi-carrier symbol set belongs to the first time unit set, the first node performs first monitoring to judge whether to perform wireless transmission in the first multi-carrier symbol set; if yes, the first node sends the first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the first multi-carrier symbol set; when the second set of multicarrier symbols does not belong to the first set of time units, a first node transmits the first signal in the first set of multicarrier symbols; the sender of the second signaling is the first node; the receiver of the first type of signal comprises the first node.
According to one aspect of the present application, the above method is characterized in that the first set of signals is used for determining a third time interval, which third time interval is used together with the second time interval for determining the first time interval.
The present application discloses a first node used for wireless communication, which is characterized by comprising:
a first receiver that receives first signaling, the first signaling being used to indicate a first set of time units;
a first transmitter that transmits second signaling, the second signaling being used to indicate a first time interval;
a second receiver that receives third signaling indicating a first set of multicarrier symbols and first scheduling information;
a second transceiver configured to discard wireless transmissions in the first set of multicarrier symbols when a second set of multicarrier symbols belongs to the first set of time units; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
The present application discloses a first node used for wireless communication, which is characterized by comprising:
a first receiver that receives first signaling, the first signaling being used to indicate a first set of time units;
a first transmitter that transmits second signaling, the second signaling being used to indicate a first time interval;
a second receiver that receives third signaling indicating a first set of multicarrier symbols and first scheduling information;
a second transceiver that performs a first listening to determine whether to wirelessly transmit in the first set of multicarrier symbols when a second set of multicarrier symbols belongs to the first set of time units; if yes, sending a first signal in the first multi-carrier symbol set; if not, discarding wireless transmission in the first multi-carrier symbol set; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
The present application discloses a second node used for wireless communication, which is characterized by comprising:
a third transmitter that transmits first signaling, the first signaling being used to indicate a first set of time units;
a third receiver that receives second signaling, the second signaling being used to indicate the first time interval;
a fourth transmitter that transmits third signaling indicating the first set of multicarrier symbols and the first scheduling information;
a fourth receiver configured to discard wireless reception in the first multicarrier symbol set for a first node, the first node being a sender of the second signaling, when a second multicarrier symbol set belongs to the first time unit set; receiving a first signal in a second set of multicarrier symbols when the second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
The present application discloses a second node used for wireless communication, which is characterized by comprising:
a third transmitter that transmits first signaling, the first signaling being used to indicate a first set of time units;
a third receiver that receives second signaling, the second signaling being used to indicate the first time interval;
a fourth transmitter that transmits third signaling indicating the first set of multicarrier symbols and the first scheduling information;
a fourth receiver that detects a first signal in the first set of multicarrier symbols;
wherein when a second set of multi-carrier symbols belongs to the first set of time units, a first node performs a first listening to determine whether to wirelessly transmit in the first set of multi-carrier symbols; if yes, the first node sends a first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the first multi-carrier symbol set; when the second multi-carrier symbol set does not belong to the first time unit set, the first node transmits a first signal in the first multi-carrier symbol set; the first node is the sender of the second signaling; the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
The present application discloses a third node used for wireless communication, which is characterized by comprising:
a fifth transmitter for transmitting a first set of signals;
wherein the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, the first set of signals being used to trigger transmission of second signaling; the second signaling is used to indicate a first time interval, the time interval between any one of the second set of multicarrier symbols and a corresponding multicarrier symbol in the first set of multicarrier symbols being the first time interval; the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; third signaling indicating the first set of multicarrier symbols and the first scheduling information, the first signaling being used to indicate a first set of time units; when the second multi-carrier symbol set belongs to the first time unit set, a first node gives up wireless transmission in the first multi-carrier symbol set; when the second set of multicarrier symbols does not belong to the first set of time units, a first node transmits the first signal in the first set of multicarrier symbols; or when the second multi-carrier symbol set belongs to the first time unit set, the first node performs first monitoring to judge whether to perform wireless transmission in the first multi-carrier symbol set; if yes, the first node sends the first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the first multi-carrier symbol set; when the second set of multicarrier symbols does not belong to the first set of time units, a first node transmits the first signal in the first set of multicarrier symbols; the sender of the second signaling is the first node; the receiver of the first type of signal comprises the first node.
As an embodiment, the present application has the following advantages over the conventional scheme:
the first time interval corresponds to a delay between a first node and an NTN base station, and the second set of multicarrier symbols corresponds to a time domain resource to which a wireless signal transmitted in the first set of multicarrier symbols on a Uu port due to the delay can be spread; when the second set of multi-carrier symbols is overlapped with the first set of time units, the transmission on Uu will affect V2X, and the transmission on Uu needs to be avoided;
and sending the first time interval to the base station of the NTN through a second signaling, wherein when the first node potentially generates interference to V2X transmission in the configured first time unit set aiming at the uplink sending of the NTN base station, the NTN base station avoids the first node from being scheduled in the second multi-carrier symbol set.
When the second multi-carrier symbol set belongs to the first time unit set, it is indicated that the transmission of the first node will cause interference to the transmission of V2X, and then the first node further determines whether the transmission of V2X exists in the periphery through the first monitoring, so that unnecessary resource waste caused by no transmission of V2X in the periphery is avoided, and the overall spectrum efficiency is improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings in which:
FIG. 1 illustrates a process flow diagram of a first node according to one embodiment of the application;
FIG. 2 shows a schematic diagram of a network architecture according to one embodiment of the application;
fig. 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the application;
FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to one embodiment of the application;
FIG. 5 shows a process flow diagram of a first node according to another embodiment of the application;
figure 6 shows a flow chart of a first signaling according to an embodiment of the application;
FIG. 7 shows a flow chart of a first signal according to one embodiment of the application;
fig. 8 shows a flow chart of a first signal according to another embodiment of the application;
fig. 9 shows a schematic diagram of a first set of time units and a second set of multicarrier symbols according to an embodiment of the application;
fig. 10 shows a schematic diagram of a first set of time units and a second set of multicarrier symbols according to another embodiment of the application;
Fig. 11 shows a schematic diagram of a first set of time units and a second set of multicarrier symbols according to another embodiment of the application;
FIG. 12 shows a schematic diagram according to the present application;
FIG. 13 shows a schematic diagram of an application scenario according to one embodiment of the application;
FIG. 14 illustrates a block diagram of a structure used in a first node in accordance with one embodiment of the present application;
FIG. 15 shows a block diagram of a structure for use in a first node in accordance with another embodiment of the present application;
FIG. 16 illustrates a block diagram of a structure for use in a second node in accordance with one embodiment of the present application;
FIG. 17 shows a block diagram of a structure for use in a second node in accordance with another embodiment of the present application;
FIG. 18 shows a block diagram of a structure used in a third node according to one embodiment of the application;
Detailed Description
The technical scheme of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be arbitrarily combined with each other.
Example 1
Embodiment 1 illustrates a process flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives first signaling in step 101, the first signaling being used to indicate a first set of time units; transmitting second signaling in step 102, the second signaling being used to indicate the first time interval; receiving third signaling in step 103, the third signaling indicating the first set of multicarrier symbols and the first scheduling information; discarding wireless transmission in the first set of multicarrier symbols when the second set of multicarrier symbols belongs to the first set of time units in step 104; a first signal is transmitted in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units.
In embodiment 1, the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the sender of the first signaling is the second node.
As an embodiment, the second node is a base station in an NTN.
As an embodiment, the second node is a non-terrestrial base station.
As an embodiment, the second node is one of GEO (Geostationary Earth Orbiting, geosynchronous Earth Orbit) satellite, MEO (Medium Earth Orbiting, medium Earth Orbit) satellite, LEO (Low Earth Orbit) satellite, HEO (Highly Elliptical Orbiting, high elliptical Orbit) satellite or Airborne Platform (aerial platform).
As an embodiment, the first set of time units consists of K1 time units, where K1 is a positive integer.
As a sub-embodiment of this embodiment, the K1 time units are K1 time slots (slots), respectively.
As a sub-embodiment of this embodiment, any of the K1 time units comprises a positive integer number of time slots.
As a sub-embodiment of this embodiment, all time slots in any one of the K1 time units are contiguous.
As a sub-embodiment of this embodiment, said K1 is greater than 1.
As a sub-embodiment of this embodiment, said K1 is equal to 1.
As an embodiment, the time unit in the present application is a time Slot, or the time unit in the present application is a Subframe (Subframe), or the time unit in the present application is a micro-Slot (Mini-Slot).
As an embodiment, the first set of time units is reserved for transmission of non-cellular links.
As a sub-embodiment of this embodiment, the non-cellular link comprises a sidelink.
As a sub-embodiment of this embodiment, the non-cellular link is used for transmission of V2X traffic.
As an embodiment, the first scheduling information includes MCS (Modulation and Coding Status, modulation coding scheme).
As an embodiment, the first scheduling information includes HARQ (Hybrid Automatic Repeat request ) process number, RV (Redundancy Version, redundancy version), NDI (New Data Indicator, new data indication).
As an embodiment, the first set of multicarrier symbols includes a plurality of consecutive multicarrier symbols.
As an embodiment, the first set of multicarrier symbols comprises only 1 multicarrier symbol.
As an embodiment, the multi-carrier symbol in the present application is an OFDM (Orthogonal Frequency Division Multiplexing ) symbol.
As an embodiment, the multi-carrier symbol in the present application is an SC-FDMA (Single-carrier frequency division multiplexing access) symbol.
As an embodiment, the multi-carrier symbol in the present application is an FBMC (Filter Bank Multi Carrier, filter bank multi-carrier) symbol.
As an embodiment, the multi-carrier symbol in the present application is an OFDM symbol including a CP (Cyclic Prefix).
As an embodiment, the multi-carrier symbol in the present application is a DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing, discrete fourier transform spread orthogonal frequency division multiplexing) symbol containing CP.
As one embodiment, the first time interval is equal to a transmission delay (Transmission Delay) of the first node to the second node.
As an embodiment, the first time interval is a quantized value of a transmission delay of the first node to the second node.
As an embodiment, the unit of the first time interval is a Slot (Slot).
As an embodiment, the unit of the first time interval is milliseconds.
As an embodiment, the unit of the first time interval is a Subframe (Subframe).
As an embodiment, the unit of the first time interval is a length of time occupied by one multicarrier symbol.
As an embodiment, the unit of the first time interval is microseconds.
As one example, the first time interval is 1/30720 ms in units.
As one example, the first time interval is 1/X milliseconds in units, and X is a positive integer multiple of 30720.
As an embodiment, the first time interval increases with increasing distance between the first node and the second node.
As an embodiment, the first time interval is related to the height of the second node.
As an embodiment, the first time interval is related to a tilt angle between the second node and the first node.
As an embodiment, the third signaling is DCI (Downlink Control Information ).
As an embodiment, the third signaling is an uplink Grant (UL Grant).
As an embodiment, the meaning of the third signaling indicating the first multicarrier symbol set in the sentence includes: the third signaling is used to indicate the locations of the multicarrier symbols occupied by the first set of multicarrier symbols in the time domain.
As an embodiment, the foregoing sentence giving up wireless transmission in the first multicarrier symbol set includes: the first node does not transmit the first signal in the first set of multicarrier symbols.
As an embodiment, the foregoing sentence giving up wireless transmission in the first multicarrier symbol set includes: the first node defers transmitting the first signal.
As an embodiment, the foregoing sentence giving up wireless transmission in the first multicarrier symbol set includes: the first node buffers the first signal and transmits the first signal in a time window subsequent to the first set of multicarrier symbols.
As an embodiment, the first signal is a wireless signal.
As an embodiment, the first signal is a baseband signal.
As an embodiment, the physical layer channel included in the first signal includes PUSCH (Physical Uplink Shared Channel ).
As an embodiment, the wireless signal included in the first signal includes SRS (Sounding Reference Signal ).
As an embodiment, the meaning that the second multicarrier symbol set belongs to the first time unit set in the sentence includes: the second set of multicarrier symbols comprises K2 multicarrier symbols, where K2 is a positive integer, and any of the K2 multicarrier symbols is one multicarrier symbol comprised by the first set of time units.
As an embodiment, the meaning that the second set of multicarrier symbols does not belong to the first set of time units in the sentence includes: the second set of multicarrier symbols comprises K2 multicarrier symbols, K2 being a positive integer, none of the K2 multicarrier symbols being one multicarrier symbol comprised by the first set of time units.
As one embodiment, the third signaling indicates a first multicarrier symbol group, the first multicarrier symbol group includes the first multicarrier symbol set, multicarrier symbols in the first multicarrier symbol group correspond one-to-one to multicarrier symbols in a second multicarrier symbol group, and a time interval between any multicarrier symbol in the second multicarrier symbol group and a corresponding multicarrier symbol in the first multicarrier symbol group is a first time interval; only the second set of multicarrier symbols in the second group of multicarrier symbols belongs to the first time unit; the first node relinquishes wireless transmission in the first set of multicarrier symbols and reserves transmission on multicarrier symbols in the first group of multicarrier symbols and outside the first set of multicarrier symbols.
As one embodiment, the third signaling indicates a first multicarrier symbol group, the first multicarrier symbol group includes the first multicarrier symbol set, multicarrier symbols in the first multicarrier symbol group correspond one-to-one to multicarrier symbols in a second multicarrier symbol group, and a time interval between any multicarrier symbol in the second multicarrier symbol group and a corresponding multicarrier symbol in the first multicarrier symbol group is a first time interval; only the second set of multicarrier symbols in the second group of multicarrier symbols belongs to the first time unit; the first node relinquishes wireless transmission in the first multicarrier symbol group.
As one embodiment, the third signaling indicates a first multicarrier symbol group, the first multicarrier symbol group includes the first multicarrier symbol set, multicarrier symbols in the first multicarrier symbol group correspond one-to-one to multicarrier symbols in a second multicarrier symbol group, and a time interval between any multicarrier symbol in the second multicarrier symbol group and a corresponding multicarrier symbol in the first multicarrier symbol group is a first time interval; only the second set of multicarrier symbols in the second group of multicarrier symbols belongs to the first time unit; the first node relinquishes wireless transmission in the first set of multicarrier symbols and performs channel awareness measurements (Sensing Measurement) to determine whether transmissions on multicarrier symbols remaining in the first group of multicarrier symbols and outside the first set of multicarrier symbols.
As a sub-embodiment of this embodiment, the channel awareness determines that there is no sidelink transmission surrounding, and the first node retains transmissions on multicarrier symbols in the first group of multicarrier symbols and outside the first set of multicarrier symbols.
As a sub-embodiment of this embodiment, the channel awareness determines that there is a sidelink transmission around, and the first node discards transmissions on multicarrier symbols in and outside the first set of multicarrier symbols.
As an embodiment, the second signaling is sent by means of Broadcast (Broadcast).
As an embodiment, the second signaling is sent by means of multicast (Groupcast).
As an embodiment, the receiver of the second signaling comprises a node other than the second node.
As an embodiment, the receiver of the second signaling comprises a terminal performing V2X communication.
As an embodiment, the second signaling comprises a second set of time units comprising a positive integer number of time units, the second set of time units being reserved for uplink transmissions of the cellular link of the first node.
Example 2
Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.
Fig. 2 illustrates a diagram of a network architecture 200 of a 5g nr, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System ) 200 as some other suitable terminology. EPS 200 may include one or more UEs (User Equipment) 201, and includes a UE241 in sidelink communication with UE201, and includes a UE242 in sidelink communication with UE201, NG-RAN (next generation radio access Network) 202, epc (Evolved Packet Core )/5G-CN (5G-Core Network) 210, hss (Home Subscriber Server ) 220, and internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the EPC/5G-CN 210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the EPC/5G-CN 210 through an S1/NG interface. EPC/5G-CN 210 includes MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/UPF (User Plane Function ) 211, other MME/AMF/UPF214, S-GW (Service Gateway) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway) 213. The MME/AMF/UPF211 is a control node that handles signaling between the UE201 and the EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW212, which S-GW212 itself is connected to P-GW213. The P-GW213 provides UE IP address assignment as well as other functions. The P-GW213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.
As an embodiment, the UE201 corresponds to the first node in the present application.
As an embodiment, the gNB203 corresponds to the second node in the present application.
As an embodiment, the UE241 corresponds to the third node in the present application.
As an embodiment, the air interface between the UE201 and the gNB203 is a Uu interface.
As an embodiment, the air interface between the UE201 and the UE241 is a PC-5 interface.
As one embodiment, the wireless link between the UE201 and the gNB203 is a cellular link.
As an embodiment, the radio link between the UE201 and the UE241 is a sidelink.
As an embodiment, the uplink transmission of the UE201 interferes with the V2X transmission of the UE 241.
As an embodiment, the first node in the present application is a terminal within the coverage of the gNB 203.
As an embodiment, the third node in the present application is a terminal outside the coverage of the gNB 203.
As an embodiment, the third node in the present application is a terminal within the coverage of the gNB 203.
As an embodiment, the first node and the third node belong to a V2X Pair (Pair).
As an embodiment, the uplink transmission of the first node interferes with the V2X transmission between the third node and the nodes other than the third node.
As an embodiment, the first node is an automobile.
As an embodiment, the first node is a vehicle.
As an embodiment, the second node is a base station.
As an embodiment, the third node is a vehicle.
As an embodiment, the third node is an automobile.
As an embodiment, the third node is an RSU (Road Side Unit).
As an embodiment, the third node is a Group Header (Group Header) of a terminal Group.
Example 3
Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 for a first communication node device (UE, RSU in gNB or V2X) and a second communication node device (gNB, RSU in UE or V2X), or between two UEs, in three layers: 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 herein as PHY301. 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. The L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (Packet Data Convergence Protocol ) sublayer 304, which 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 ciphering the data packets and handover support for the first communication node device between second communication node devices. 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 the various radio resources (e.g., resource blocks) in one cell among the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling 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 substantially the same for the physical layer 351, PDCP sublayer 354 in the L2 layer 355, RLC sublayer 353 in the L2 layer 355 and MAC sublayer 352 in the L2 layer 355 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. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service Data Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and Data Radio Bearers (DRBs) to support diversity of traffic. Although not shown, the first communication node apparatus may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., remote UE, server, etc.).
As an embodiment, the radio protocol architecture in fig. 3 is applicable to the first node in the present application.
As an embodiment, the radio protocol architecture in fig. 3 is applicable to the second node in the present application.
As an embodiment, the radio protocol architecture in fig. 3 is applicable to the third node in the present application.
As an embodiment, the first signaling is generated in the MAC352 or the MAC302.
As an embodiment, the first signaling is generated in the RRC306.
As an embodiment, the second signaling is generated in the PHY301 or the PHY351.
As an embodiment, the second signaling is generated in the MAC352 or the MAC302.
As an embodiment, the second signaling is generated in the RRC306.
As an embodiment, the third signaling is generated in the PHY301 or the PHY351.
As an embodiment, the first signal is generated in the PHY301 or the PHY351.
As an embodiment, the first signal is generated at the MAC352 or the MAC302.
As an embodiment, the fourth signaling is generated in the MAC352 or the MAC302.
As an embodiment, the fourth signaling is generated in the RRC306.
As an embodiment, the first type signal set is generated in the PHY301 or the PHY351.
Example 4
Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the application, as shown in fig. 4. Fig. 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 transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.
The second communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.
In the transmission from the second communication device 410 to the first communication device 450, upper layer data packets from the core network are provided to a controller/processor 475 at the second communication device 410. The controller/processor 475 implements the functionality of the L2 layer. In the transmission from the second communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation 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 transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal clusters 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). The multi-antenna transmit processor 471 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.
In a transmission from the second communication device 410 to the first communication device 450, each receiver 454 receives a signal at the first communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream that is provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions for the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals that were 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. Memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, 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 packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.
In the transmission from the first communication device 450 to the second communication device 410, a data source 467 is used at the first communication device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides it to an antenna 452.
In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described 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 to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively 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. Memory 476 may be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, a 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 the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network.
As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus of the first communication device 450 to at least: first receiving first signaling, the first signaling being used to indicate a first set of time units; second transmitting second signaling, the second signaling being used to indicate the first time interval; subsequently receiving third signaling indicating the first set of multicarrier symbols and the first scheduling information; discarding wireless transmission in the first set of multicarrier symbols when the second set of multicarrier symbols belongs to the first set of time units; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units; the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: first receiving first signaling, the first signaling being used to indicate a first set of time units; second transmitting second signaling, the second signaling being used to indicate the first time interval; subsequently receiving third signaling indicating the first set of multicarrier symbols and the first scheduling information; discarding wireless transmission in the first set of multicarrier symbols when the second set of multicarrier symbols belongs to the first set of time units; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units; the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus of the first communication device 450 to at least: first receiving first signaling, the first signaling being used to indicate a first set of time units; second transmitting second signaling, the second signaling being used to indicate the first time interval; subsequently receiving third signaling indicating the first set of multicarrier symbols and the first scheduling information; when the second multi-carrier symbol set belongs to the first time unit set, executing first monitoring to judge whether wireless transmission is carried out in the first multi-carrier symbol set; if yes, sending a first signal in the first multi-carrier symbol set; if not, discarding wireless transmission in the first multi-carrier symbol set; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units; the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the first communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: first receiving first signaling, the first signaling being used to indicate a first set of time units; second transmitting second signaling, the second signaling being used to indicate the first time interval; subsequently receiving third signaling indicating the first set of multicarrier symbols and the first scheduling information; when the second multi-carrier symbol set belongs to the first time unit set, executing first monitoring to judge whether wireless transmission is carried out in the first multi-carrier symbol set; if yes, sending a first signal in the first multi-carrier symbol set; if not, discarding wireless transmission in the first multi-carrier symbol set; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units; the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: first transmitting first signaling, the first signaling being used to indicate a first set of time units; second receiving second signaling, the second signaling being used to indicate the first time interval; then transmitting third signaling, wherein the third signaling indicates the first multi-carrier symbol set and the first scheduling information; discarding wireless reception in the first set of multicarrier symbols for a first node when the second set of multicarrier symbols belongs to the first set of time units, the first node being a sender of the second signaling; receiving a first signal in a second set of multicarrier symbols when the second set of multicarrier symbols does not belong to the first set of time units; the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: first transmitting first signaling, the first signaling being used to indicate a first set of time units; second receiving second signaling, the second signaling being used to indicate the first time interval; then transmitting third signaling, wherein the third signaling indicates the first multi-carrier symbol set and the first scheduling information; discarding wireless reception in the first set of multicarrier symbols for a first node when the second set of multicarrier symbols belongs to the first set of time units, the first node being a sender of the second signaling; receiving a first signal in a second set of multicarrier symbols when the second set of multicarrier symbols does not belong to the first set of time units; the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: first transmitting first signaling, the first signaling being used to indicate a first set of time units; subsequently receiving second signaling, the second signaling being used to indicate the first time interval; secondly, third signaling is sent, and the third signaling indicates the first multi-carrier symbol set and the first scheduling information; finally, detecting a first signal in the first multi-carrier symbol set; when the second multi-carrier symbol set belongs to the first time unit set, the first node executes first monitoring to judge whether wireless transmission is performed in the first multi-carrier symbol set; if yes, the first node sends a first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the first multi-carrier symbol set; when the second multi-carrier symbol set does not belong to the first time unit set, the first node transmits a first signal in the first multi-carrier symbol set; the first node is the sender of the second signaling; the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: first transmitting first signaling, the first signaling being used to indicate a first set of time units; subsequently receiving second signaling, the second signaling being used to indicate the first time interval; secondly, third signaling is sent, and the third signaling indicates the first multi-carrier symbol set and the first scheduling information; finally, detecting a first signal in the first multi-carrier symbol set; when the second multi-carrier symbol set belongs to the first time unit set, the first node executes first monitoring to judge whether wireless transmission is performed in the first multi-carrier symbol set; if yes, the first node sends a first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the first multi-carrier symbol set; when the second multi-carrier symbol set does not belong to the first time unit set, the first node transmits a first signal in the first multi-carrier symbol set; the first node is the sender of the second signaling; the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 410 means at least: transmitting a first set of signals; the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, the first set of signals is used to trigger the transmission of second signaling; the second signaling is used to indicate a first time interval, the time interval between any one of the second set of multicarrier symbols and a corresponding multicarrier symbol in the first set of multicarrier symbols being the first time interval; the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; third signaling indicating the first set of multicarrier symbols and the first scheduling information, the first signaling being used to indicate a first set of time units; when the second multi-carrier symbol set belongs to the first time unit set, a first node gives up wireless transmission in the first multi-carrier symbol set; when the second set of multicarrier symbols does not belong to the first set of time units, a first node transmits the first signal in the first set of multicarrier symbols; or when the second multi-carrier symbol set belongs to the first time unit set, the first node performs first monitoring to judge whether to perform wireless transmission in the first multi-carrier symbol set; if yes, the first node sends the first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the first multi-carrier symbol set; when the second set of multicarrier symbols does not belong to the first set of time units, a first node transmits the first signal in the first set of multicarrier symbols; the sender of the second signaling is the first node; the receiver of the first type of signal comprises the first node.
As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting a first set of signals; the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, the first set of signals is used to trigger the transmission of second signaling; the second signaling is used to indicate a first time interval, the time interval between any one of the second set of multicarrier symbols and a corresponding multicarrier symbol in the first set of multicarrier symbols being the first time interval; the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; third signaling indicating the first set of multicarrier symbols and the first scheduling information, the first signaling being used to indicate a first set of time units; when the second multi-carrier symbol set belongs to the first time unit set, a first node gives up wireless transmission in the first multi-carrier symbol set; when the second set of multicarrier symbols does not belong to the first set of time units, a first node transmits the first signal in the first set of multicarrier symbols; or when the second multi-carrier symbol set belongs to the first time unit set, the first node performs first monitoring to judge whether to perform wireless transmission in the first multi-carrier symbol set; if yes, the first node sends the first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the first multi-carrier symbol set; when the second set of multicarrier symbols does not belong to the first set of time units, a first node transmits the first signal in the first set of multicarrier symbols; the sender of the second signaling is the first node; the receiver of the first type of signal comprises the first node.
As an embodiment, the first communication device 450 corresponds to a first node in the present application.
As an embodiment, the second communication device 410 corresponds to a second node in the present application.
As an embodiment, the second communication device 410 corresponds to a third node in the present application.
As an embodiment, the first communication device 450 is a UE.
As an embodiment, the second communication device 410 is a base station.
As an embodiment, the second communication device 410 is a UE.
As an embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least one of the controller/processors 459 is configured to receive first signaling, the first signaling being used to indicate a first set of time units; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least one of the controller/processors 475 are used to transmit first signaling, the first signaling being used to indicate a first set of time units.
As one implementation, the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, at least one of the controller/processor 459 is used to transmit second signaling, the second signaling being used to indicate a first time interval; the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least one of the controller/processors 475 is configured to receive second signaling, the second signaling being used to indicate the first time interval.
As an embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least one of the controller/processor 459 is configured to receive third signaling indicating a first set of multi-carrier symbols and first scheduling information; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least one of the controller/processor 475 is used to transmit third signaling indicating the first set of multi-carrier symbols and the first scheduling information.
As an implementation, when a second set of multicarrier symbols belongs to the first set of time units, the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, at least one of the controller/processor 459 is configured to forego wirelessly transmitting in the first set of multicarrier symbols; or when a second set of multicarrier symbols does not belong to the first set of time units, the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, at least one of the controller/processor 459 is used to transmit a first signal in the first set of multicarrier symbols.
As an implementation, when a second set of multicarrier symbols belongs to the first set of time units, the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least one of the controller/processors 475 performs a first listening to determine whether to wirelessly transmit in the first set of multicarrier symbols.
As a sub-embodiment of this embodiment, if determined to be, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 is configured to transmit a first signal in the first set of multi-carrier symbols.
As a sub-embodiment of this embodiment, if not, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 is configured to discard wireless transmissions in the first set of multi-carrier symbols.
As one implementation, the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and at least one of the controller/processors 459 are configured to transmit a first signal in the first set of multi-carrier symbols when a second set of multi-carrier symbols does not belong to the first set of time units.
As an implementation, the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and at least one of the controller/processors 475 are configured to forego wireless reception for a first node in the first set of multi-carrier symbols when the second set of multi-carrier symbols belongs to the first set of time units.
As an implementation, the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least one of the controller/processors 475 are configured to receive a first signal in the first set of multi-carrier symbols when the second set of multi-carrier symbols does not belong to the first set of time units.
As one implementation, the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least one of the controller/processors 475 is configured to detect a first signal in the first set of multi-carrier symbols.
As an embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least one of the controller/processor 459 being adapted to receive fourth signaling; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least one of the controller/processor 475 is used to transmit fourth signaling.
As one embodiment, the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, at least one of the controller/processor 459 being configured to detect a first set of signals; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least one of the controller/processors 475 are used to transmit a set of signals of a first type.
Example 5
Embodiment 5 illustrates a process flow diagram of another first node, as shown in fig. 5. In 500 shown in fig. 5, each block represents a step. In embodiment 5, a first node in the present application receives first signaling in step 501, the first signaling being used to indicate a first set of time units; transmitting second signaling in step 502, the second signaling being used to indicate the first time interval; receiving third signaling in step 503, the third signaling indicating the first set of multicarrier symbols and the first scheduling information; performing a first listening to determine whether to wirelessly transmit in the first set of multicarrier symbols when the second set of multicarrier symbols belongs to the first set of time units in step 504; if yes, sending a first signal in the first multi-carrier symbol set; if not, discarding wireless transmission in the first multi-carrier symbol set; a first signal is transmitted in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units.
In embodiment 5, the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an example, the example and sub-example of example 1 can be used in example 5 without conflict.
Example 6
Embodiment 6 illustrates a flow chart of a first signaling, as shown in fig. 6. In fig. 6, the first node U1 and the second node N2 communicate through a Uu link, and the first node U1 and the third node U3 communicate through a sidelink; the steps marked in blocks F0 and F1 in the figure are optional.
For the followingFirst node U1Receiving a fourth signaling in step S10; receiving a first signaling in step S11; detecting a first set of signals in step S12; transmitting a second signaling in step S13; in step S14, third signaling is received.
For the followingSecond node U2Transmitting a fourth signaling in step S20; transmitting a first signaling in step S21; receiving the second signaling in step S22; in step S23, a third signaling is sent.
For the followingThird node U3The first set of signals is transmitted in step S30.
In embodiment 5, the first signaling is used to indicate a first set of time units, the second signaling is used to indicate a first time interval, and the third signaling indicates a first set of multicarrier symbols and first scheduling information; the fourth signaling is used to determine a second time interval, the first time interval being related to the second time interval; the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, and the first set of signals is used to trigger the transmission of the second signaling.
As an embodiment, when a second set of multicarrier symbols belongs to the first set of time units, the first node U1 gives up wireless transmission in the first set of multicarrier symbols; when the second set of multi-carrier symbols does not belong to the first set of time units, the first node U1 transmits a first signal in the first set of multi-carrier symbols; wherein the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, when a second set of multicarrier symbols belongs to the first set of time units, the first node U1 performs a first listening to determine whether to wirelessly transmit in the first set of multicarrier symbols; if yes, the first node U1 sends a first signal in the first multi-carrier symbol set; if not, the first node U1 gives up wireless transmission in the first multi-carrier symbol set; when the second set of multi-carrier symbols does not belong to the first set of time units, the first node U1 transmits a first signal in the first set of multi-carrier symbols; wherein the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the meaning of the sentence that the first time interval is related to the second time interval includes: the first time interval is equal to the second time interval.
As an embodiment, the fourth signaling comprises a height of the second node N2, the height of the second node N2 being used for determining the second time interval.
As an embodiment, the fourth signaling comprises a downtilt of the second node N2 with the first node U1, the downtilt of the second node N2 with the first node U1 being used for determining the second time interval.
As an embodiment, the fourth signaling comprises a category of the second node N2, the category of the second node N2 being used for determining the second time interval.
As an embodiment, the second time interval is equal to a transmission delay of the first node U1 to the second node N2.
As an embodiment, the second time interval is a quantized value of a transmission delay of the first node U1 to the second node N2.
As an embodiment, the unit of the second time interval is a time slot.
As an embodiment, the unit of the second time interval is milliseconds.
As an embodiment, the unit of the second time interval is a subframe.
As an embodiment, the unit of the second time interval is a length of time occupied by one multicarrier symbol.
As an embodiment, the unit of the second time interval is microseconds.
As an example, the unit of the second time interval is 1/30720 ms.
As one example, the unit of the second time interval is 1/X milliseconds, and X is a positive integer multiple of 30720.
As an embodiment, the second time interval increases with increasing distance of the first node U1 from the second node N2.
As an embodiment, the second time interval is related to the height of the second node N2.
As an embodiment, the second time interval is related to a tilt angle between the second node N2 and the first node U1.
As an embodiment, the first node U1 detects the first type signal, and the first node U1 sends the second signaling.
As an embodiment, the set of first type signals comprises a positive integer number of first type signals.
As an embodiment, the set of signals of the first type comprises only one signal of the first type.
As an embodiment, the sender of the first set of signals is a node other than the second node N2.
As an embodiment, the signals comprised by the first set of signals are all transmitted on a sidelink.
As an embodiment, the first type of signal set includes at least one of PSCCH (Physical Sidelink Control Channel ), PSSCH (Physical Sidelink Shared Channel, physical sidelink shared channel) or PSFCH (Physical Sidelink Feedback Channel ).
As an embodiment, the average power value of the signals in the first type signal set detected by the first node U1 is greater than a first threshold, and the first node U1 sends the second signaling.
As an embodiment, the average power value of the signals in the first type signal set detected by the first node U1 is not greater than a first threshold, and the first node U1 gives up to send the second signaling.
As an embodiment, the first type of signals included in the first type of signal set are baseband signals.
As an embodiment, the first type of signals included in the first type of signal set are all wireless signals.
As an embodiment, the first set of signals is used to determine a third time interval, which is used in common with the second time interval to determine the first time interval.
As a sub-embodiment of this embodiment, the first time interval is equal to the sum of the second time interval and the third time interval.
As a sub-embodiment of this embodiment, the first time interval is equal to the difference between the second time interval and the third time interval.
As a sub-embodiment of this embodiment, the third time interval is equal to the transmission delay of the third node U3 to the first node U1.
As a sub-embodiment of this embodiment, the third time interval is a quantized value of a transmission delay of the third node U3 to the first node U1.
As a sub-embodiment of this embodiment, the unit of the third time interval is a time slot.
As a sub-embodiment of this embodiment, the unit of the third time interval is milliseconds.
As a sub-embodiment of this embodiment, the unit of the third time interval is a subframe.
As a sub-embodiment of this embodiment, the unit of the third time interval is the length of time occupied by one multicarrier symbol.
As a sub-embodiment of this embodiment, the unit of the third time interval is microseconds.
As a sub-embodiment of this embodiment, the unit of the third time interval is 1/30720 ms.
As a sub-embodiment of this embodiment, the unit of the third time interval is 1/X milliseconds, and X is a positive integer multiple of 30720.
As a sub-embodiment of this embodiment, the third time interval increases with increasing distance between the third node U3 and the first node U1.
As a sub-embodiment of this embodiment, the third time interval is related to the height of the third node U3.
As a sub-embodiment of this embodiment, the third time interval is related to the tilt angle between the third node U3 and the first node U1.
Example 7
Embodiment 7 illustrates a flow chart of a first signal, as shown in fig. 7. In fig. 7, the first node U4 and the second node N5 communicate via a cellular link.
For the followingFirst node U4The following steps are performed:
in step S40, it is determined whether the second multicarrier symbol set belongs to the first time unit set, and if yes, step S41 is entered; if no, go to step S42;
discarding wireless transmission in the first multicarrier symbol set in step S41;
the first signal is transmitted in a first set of multicarrier symbols in step S42.
For the followingSecond node N5The following steps are performed:
in step S50, it is determined whether the second multicarrier symbol set belongs to the first time unit set, and if yes, step S51 is entered; if no, go to step S52;
discarding wireless reception for the first node U4 in the first set of multicarrier symbols in step S51;
a first signal is received in a first set of multicarrier symbols in step S51.
Example 8
Embodiment 8 illustrates another flow chart of the first signal, as shown in fig. 8. In fig. 8, a first node U6 communicates with a second node N7 via a cellular link.
For the followingFirst node U6The following steps are performed:
in step S60, it is determined whether the second multicarrier symbol set belongs to the first time unit set, and if yes, step S61 is entered; if no, go to step S62;
in step S61, a first monitor is performed to determine whether or not to perform wireless transmission in the first multicarrier symbol set, and if yes, step S62 is entered, and if no, step S63 is entered.
Transmitting a first signal in the first set of multicarrier symbols in step S62;
radio transmission is aborted in the first set of multicarrier symbols in step S63.
For the followingSecond node N7The following steps are performed:
a first signal is detected in the second set of multicarrier symbols in step S70.
As one embodiment, the performing the first listening to determine whether to wirelessly transmit in the first set of multicarrier symbols comprises: the first monitoring monitors that there is transmission on the secondary link, and the first node U6 gives up wireless transmission in the first multicarrier symbol set.
As one embodiment, the performing the first listening to determine whether to wirelessly transmit in the first set of multicarrier symbols comprises: the first listening does not hear the transmission on the secondary link, and the first node U6 sends a first signal in the first set of multicarrier symbols.
As an embodiment, the first listening comprises a perception measurement.
Example 9
Embodiment 9 illustrates a schematic diagram of a first time unit and a second multicarrier set, as shown in fig. 9. In fig. 9, the second set of multi-carrier symbols corresponds to the multi-carrier symbols in the first set of multi-carrier symbols one-to-one; a time interval between any one of the second set of multicarrier symbols and a corresponding multicarrier symbol of the first set of multicarrier symbols is the first time interval; all symbols in the second set of multicarrier symbols belong to the first time unit.
As an embodiment, the first node in the present application discards wireless transmission in the first set of multicarrier symbols.
As an embodiment, the first node in the present application determines whether to perform wireless transmission in the first multicarrier symbol set by performing first listening.
Example 10
Embodiment 10 illustrates another schematic diagram of a first time unit and a second multicarrier set, as shown in fig. 10. In fig. 10, the second set of multi-carrier symbols corresponds to the multi-carrier symbols in the first set of multi-carrier symbols one-to-one; a time interval between any one of the second set of multicarrier symbols and a corresponding multicarrier symbol of the first set of multicarrier symbols is the first time interval; all symbols in the second set of multicarrier symbols do not belong to the first time unit.
As an embodiment, the first node in the present application performs wireless transmission in the first multicarrier symbol set.
Example 11
Embodiment 11 illustrates another schematic diagram of a first time unit and a second multicarrier set, as shown in fig. 11. In fig. 11, the second set of multi-carrier symbols corresponds to the multi-carrier symbols in the first set of multi-carrier symbols one-to-one; a time interval between any one of the second set of multicarrier symbols and a corresponding multicarrier symbol of the first set of multicarrier symbols is the first time interval; all symbols in the second set of multicarrier symbols belong to the first time unit; the third signaling in the present application is used to determine a first group of multicarrier symbols, the first group of multicarrier symbols comprising the first set of multicarrier symbols; the second multi-carrier symbol group corresponds to the multi-carrier symbols in the first multi-carrier symbol group one by one; the time interval between any one of the second group of multicarrier symbols and a corresponding multicarrier symbol of the first group of multicarrier symbols is a first time interval.
As one embodiment, the first node in the present application discards wireless transmissions in the first set of multicarrier symbols and reserves transmissions of multicarrier symbols in and out of the first set of multicarrier symbols.
As one embodiment, the first node in the present application discards wireless transmissions in the first set of multicarrier symbols and determines whether to reserve transmissions of multicarrier symbols in and out of the first set of multicarrier symbols by performing a channel listening measurement.
As a sub-embodiment of this embodiment, the channel listening measurement determines that no V2X transmission is perceived, and the first node reserves transmission of multicarrier symbols in and out of the first group of multicarrier symbols.
As a sub-embodiment of this embodiment, the channel listening measurement determines that a V2X transmission is perceived, and the first node discards transmissions of multicarrier symbols in the first group of multicarrier symbols and outside the first set of multicarrier symbols.
Example 12
Example 12 illustrates a schematic diagram, as shown in fig. 12. In fig. 12, uplink transmission of Uu link is performed between the first node and the second node, and the third node is performing V2X communication, and the time domain resource occupied by V2X communication is configured by the first node. TA (Timing Advance) 1 corresponds to a first node transmission Advance introduced between the first node and the second node due to transmission delay to ensure uplink transmission alignment with the second node; TA2 corresponds to a third node transmission advance introduced between the third node and the second node due to transmission delay to ensure uplink transmission alignment with the second node. As shown in the figure, when TA1 and TA2 are different, the uplink transmission of the first node may be diffused into the time domain resource occupied by the V2X transmission of the third node, i.e., the rectangle marked with a thick line frame in the figure.
Example 13
Embodiment 13 illustrates a schematic diagram of an application scenario, as shown in fig. 13. In fig. 13, uplink transmission on Uu link between the first node and the second node is shown in the figure, and V2X communication is performed between the third node and the fourth node, where uplink transmission on Uu link between the first node and the second node interferes with V2X transmission on the third node.
Example 14
Embodiment 14 illustrates a block diagram of the structure in a first node, as shown in fig. 14. In fig. 14, a first node 1400 includes a first receiver 1401, a first transmitter 1402, a second receiver 1403, and a second transceiver 1404.
A first receiver 1401, receiving first signaling, the first signaling being used to indicate a first set of time units;
a first transmitter 1402 that transmits second signaling, the second signaling being used to indicate a first time interval;
a second receiver 1403 receiving third signaling indicating the first set of multicarrier symbols and the first scheduling information;
a second transceiver 1404 that relinquishes wireless transmission in the first set of multicarrier symbols when a second set of multicarrier symbols belongs to the first set of time units; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units;
In embodiment 14, the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
For one embodiment, the first receiver 1401 receives fourth signaling; the fourth signaling is used to determine a second time interval, the first time interval being related to the second time interval.
As an embodiment, the first receiver 1401 detects a first set of signals; the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, and the first set of signals is used to trigger the transmission of the second signaling.
As an embodiment, the first set of signals is used to determine a third time interval, which is used in common with the second time interval to determine the first time interval.
As an example, the first receiver 1401 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456, and the controller/processor 459 in example 4.
As one example, the first transmitter 1402 includes at least the first 4 of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 in example 4.
As an embodiment, the second receiver 1403 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 in embodiment 4.
As one example, the second transceiver 1404 includes at least the first 4 of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 in example 4.
Example 15
Embodiment 15 illustrates a block diagram of the structure in another first node, as shown in fig. 15. In fig. 15, a first node 1500 includes a first receiver 1501, a first transmitter 1502, a second receiver 1503, and a second transceiver 1504.
A first receiver 1501 receiving first signaling, the first signaling being used to indicate a first set of time units;
a first transmitter 1502 that transmits second signaling, the second signaling being used to indicate a first time interval;
a second receiver 1503 that receives third signaling indicating the first set of multicarrier symbols and the first scheduling information;
A second transceiver 1504 that performs a first listening to determine whether to wirelessly transmit in the first set of multicarrier symbols when a second set of multicarrier symbols belongs to the first set of time units; if yes, sending a first signal in the first multi-carrier symbol set; if not, discarding wireless transmission in the first multi-carrier symbol set; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units;
in embodiment 15, the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the first receiver 1501 receives fourth signaling; the fourth signaling is used to determine a second time interval, the first time interval being related to the second time interval.
As an embodiment, the first receiver 1501 detects a first set of signals; the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, and the first set of signals is used to trigger the transmission of the second signaling.
As an embodiment, the first set of signals is used to determine a third time interval, which is used in common with the second time interval to determine the first time interval.
As an embodiment, the first receiver 1501 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 in embodiment 4.
As one example, the first transmitter 1502 includes at least the first 4 of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 in example 4.
As an embodiment, the second receiver 1503 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 in embodiment 4.
As one example, the second transceiver 1504 includes at least the first 4 of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 of example 4.
As one embodiment, the second transceiver 1504 includes at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.
Example 16
Embodiment 16 illustrates a block diagram of the structure in a second node, as shown in fig. 16. In fig. 16, second node 1600 includes a third transmitter 1601, a third receiver 1602, a fourth transmitter 1603, and a fourth receiver 1604.
A third transmitter 1601 that transmits first signaling, the first signaling being used to indicate a first set of time units;
a third receiver 1602 that receives second signaling, the second signaling being used to indicate a first time interval;
a fourth transmitter 1603 that transmits third signaling indicating the first multicarrier symbol set and the first scheduling information;
a fourth receiver 1604 that relinquishes wireless reception in the first set of multicarrier symbols for a first node that is a sender of the second signaling when a second set of multicarrier symbols belongs to the first set of time units; receiving a first signal in a second set of multicarrier symbols when the second set of multicarrier symbols does not belong to the first set of time units;
In embodiment 16, the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval. For one embodiment, the second transceiver 1601 sends a first signaling; the first signaling is used to determine at least one of time domain resources or frequency domain resources occupied by the first signal, the first signaling including the first domain, the first signaling being physical layer signaling.
As an embodiment, the third transmitter 1601 sends fourth signaling; the fourth signaling is used to determine a second time interval, the first time interval being related to the second time interval.
As one example, the third transmitter 1601 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 in example 4.
As an example, the third receiver 1602 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of example 4.
As one example, the fourth transmitter 1603 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of example 4.
As an example, the fourth receiver 1604 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of example 4.
Example 17
Embodiment 17 illustrates a block diagram of the structure in a second node, as shown in fig. 17. In fig. 17, second node 1700 includes a third transmitter 1701, a third receiver 1702, a fourth transmitter 1703, and a fourth receiver 1704.
A third transmitter 1701 that transmits first signaling, the first signaling being used to indicate a first set of time units;
a third receiver 1702 that receives second signaling, the second signaling being used to indicate a first time interval;
a fourth transmitter 1703 that transmits third signaling indicating the first set of multicarrier symbols and the first scheduling information;
a fourth receiver 1704 that detects a first signal in the first set of multicarrier symbols;
in embodiment 17, when the second set of multicarrier symbols belongs to the first set of time units, the first node performs a first listening to determine whether to wirelessly transmit in the first set of multicarrier symbols; if yes, the first node sends a first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the first multi-carrier symbol set; when the second multi-carrier symbol set does not belong to the first time unit set, the first node transmits a first signal in the first multi-carrier symbol set; the first node is the sender of the second signaling; the first scheduling information is applied to the first signal, and the multicarrier symbols in the second multicarrier symbol set are in one-to-one correspondence with the multicarrier symbols in the first multicarrier symbol set; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
As an embodiment, the third transmitter 1701 transmits fourth signaling; the fourth signaling is used to determine a second time interval, the first time interval being related to the second time interval.
As one example, the third transmitter 1701 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of example 4.
As one example, the third receiver 1702 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of example 4.
As one example, the fourth transmitter 1703 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of example 4.
As an example, the fourth receiver 1704 includes at least the first 4 of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of example 4.
Example 18
Embodiment 18 illustrates a block diagram of the structure in a third node, as shown in fig. 18. In fig. 18, the third node 1800 includes a fifth transmitter 1801.
A fifth transmitter 1801 that transmits a first set of signals;
in embodiment 18, the first set of signals is used to determine the presence of transmissions of a radio link other than a cellular link, the first set of signals is used to trigger the transmission of second signaling; the second signaling is used to indicate a first time interval, the time interval between any one of the second set of multicarrier symbols and a corresponding multicarrier symbol in the first set of multicarrier symbols being the first time interval; the first scheduling information is applied to the first signal; the multi-carrier symbols in the second multi-carrier symbol set are in one-to-one correspondence with the multi-carrier symbols in the first multi-carrier symbol set; third signaling indicating the first set of multicarrier symbols and the first scheduling information, the first signaling being used to indicate a first set of time units; when the second multi-carrier symbol set belongs to the first time unit set, a first node gives up wireless transmission in the first multi-carrier symbol set; when the second set of multicarrier symbols does not belong to the first set of time units, a first node transmits the first signal in the first set of multicarrier symbols; or when the second multi-carrier symbol set belongs to the first time unit set, the first node performs first monitoring to judge whether to perform wireless transmission in the first multi-carrier symbol set; if yes, the first node sends the first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the first multi-carrier symbol set; when the second set of multicarrier symbols does not belong to the first set of time units, a first node transmits the first signal in the first set of multicarrier symbols; the sender of the second signaling is the first node; the receiver of the first type of signal comprises the first node.
As an example, the fifth transmitter 1801 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 in example 4.
Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The first node and the second node in the application comprise, but are not limited to, mobile phones, tablet computers, notebooks, network cards, low-power consumption devices, eMTC devices, NB-IoT devices, vehicle-mounted communication devices, vehicles, RSUs, aircrafts, unmanned planes, remote control aircrafts and other wireless communication devices. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission receiving node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, an RSU, and other wireless communication devices.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (18)

1. A first node for wireless communication, comprising:
a first receiver that receives first signaling, the first signaling being used to indicate a first set of time units;
a first transmitter that transmits second signaling, the second signaling being used to indicate a first time interval;
a second receiver that receives third signaling indicating a first set of multicarrier symbols and first scheduling information;
a second transceiver configured to discard wireless transmissions in the first set of multicarrier symbols when a second set of multicarrier symbols belongs to the first set of time units; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal; the second multi-carrier symbol set corresponds to the multi-carrier symbols in the first multi-carrier symbol set one by one; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
2. A first node for wireless communication, comprising:
a first receiver that receives first signaling, the first signaling being used to indicate a first set of time units;
a first transmitter that transmits second signaling, the second signaling being used to indicate a first time interval;
a second receiver that receives third signaling indicating a first set of multicarrier symbols and first scheduling information;
a second transceiver that performs a first listening to determine whether to wirelessly transmit in the first set of multicarrier symbols when a second set of multicarrier symbols belongs to the first set of time units; if yes, sending a first signal in the first multi-carrier symbol set; if not, discarding wireless transmission in the first multi-carrier symbol set; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal, and the second set of multicarrier symbols corresponds to multicarrier symbols in the first set of multicarrier symbols one-to-one; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
3. The first node according to claim 1 or 2, characterized in that the first receiver receives fourth signaling; the fourth signaling is used to determine a second time interval, the first time interval being related to the second time interval.
4. The first node according to claim 1 or 2, wherein the first receiver detects a first set of signals; the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, and the first set of signals is used to trigger the transmission of the second signaling.
5. A first node according to claim 3, characterized in that the first receiver detects a first set of signals of the first type; the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, and the first set of signals is used to trigger the transmission of the second signaling.
6. The first node of claim 4, wherein the first set of signals is used to determine a third time interval, the third time interval being used in conjunction with a second time interval to determine the first time interval.
7. A second node for wireless communication, comprising:
A third transmitter that transmits first signaling, the first signaling being used to indicate a first set of time units;
a third receiver that receives second signaling, the second signaling being used to indicate the first time interval;
a fourth transmitter that transmits third signaling indicating the first set of multicarrier symbols and the first scheduling information;
a fourth receiver configured to discard wireless reception in the first multicarrier symbol set for a first node, the first node being a sender of the second signaling, when a second multicarrier symbol set belongs to the first time unit set; receiving a first signal in a second set of multicarrier symbols when the second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal; the second multi-carrier symbol set corresponds to the multi-carrier symbols in the first multi-carrier symbol set one by one; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
8. A second node for wireless communication, comprising:
A third transmitter that transmits first signaling, the first signaling being used to indicate a first set of time units;
a third receiver that receives second signaling, the second signaling being used to indicate the first time interval;
a fourth transmitter that transmits third signaling indicating the first set of multicarrier symbols and the first scheduling information;
a fourth receiver that detects a first signal in the first set of multicarrier symbols;
wherein when a second set of multi-carrier symbols belongs to the first set of time units, a first node performs a first listening to determine whether to wirelessly transmit in the first set of multi-carrier symbols; if yes, the first node sends a first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the first multi-carrier symbol set; when the second multi-carrier symbol set does not belong to the first time unit set, the first node transmits a first signal in the first multi-carrier symbol set; the first node is the sender of the second signaling; the first scheduling information is applied to the first signal, and the second multi-carrier symbol set corresponds to multi-carrier symbols in the first multi-carrier symbol set one-to-one; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
9. The second node according to claim 7 or 8, wherein the third transmitter transmits fourth signaling; the fourth signaling is used to determine a second time interval, the first time interval being related to the second time interval.
10. A method in a first node for wireless communication, comprising:
receiving first signaling, the first signaling being used to indicate a first set of time units;
transmitting second signaling, the second signaling being used to indicate the first time interval;
receiving third signaling, wherein the third signaling indicates a first multi-carrier symbol set and first scheduling information;
discarding wireless transmission in the first set of multicarrier symbols when the second set of multicarrier symbols belongs to the first set of time units; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal; the second multi-carrier symbol set corresponds to the multi-carrier symbols in the first multi-carrier symbol set one by one; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
11. A method in a first node for wireless communication, comprising:
receiving first signaling, the first signaling being used to indicate a first set of time units;
transmitting second signaling, the second signaling being used to indicate the first time interval;
receiving third signaling, wherein the third signaling indicates a first multi-carrier symbol set and first scheduling information;
when the second multi-carrier symbol set belongs to the first time unit set, executing first monitoring to judge whether wireless transmission is carried out in the first multi-carrier symbol set; if yes, sending a first signal in the second multi-carrier symbol set; if not, discarding wireless transmission in the first multi-carrier symbol set; transmitting a first signal in the first set of multicarrier symbols when a second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal, and the second set of multicarrier symbols corresponds to multicarrier symbols in the first set of multicarrier symbols one-to-one; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
12. A method in a first node according to claim 10 or 11, comprising:
receiving a fourth signaling; the fourth signaling is used to determine a second time interval, the first time interval being related to the second time interval.
13. A method in a first node according to claim 10 or 11, comprising:
detecting a first type of signal set; the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, and the first set of signals is used to trigger the transmission of the second signaling.
14. The method in the first node of claim 12, comprising:
detecting a first type of signal set; the first set of signals is used to determine the presence of transmissions of a wireless link other than a cellular link, and the first set of signals is used to trigger the transmission of the second signaling.
15. The method in the first node of claim 13, wherein the first set of signals is used to determine a third time interval, the third time interval being used in conjunction with a second time interval to determine the first time interval.
16. A method in a second node for wireless communication, comprising:
transmitting first signaling, the first signaling being used to indicate a first set of time units;
receiving second signaling, the second signaling being used to indicate a first time interval;
transmitting third signaling, wherein the third signaling indicates the first multi-carrier symbol set and the first scheduling information;
discarding wireless reception in the first set of multicarrier symbols for a first node when the second set of multicarrier symbols belongs to the first set of time units, the first node being a sender of the second signaling; receiving a first signal in a second set of multicarrier symbols when the second set of multicarrier symbols does not belong to the first set of time units;
wherein the first scheduling information is applied to the first signal; the second multi-carrier symbol set corresponds to the multi-carrier symbols in the first multi-carrier symbol set one by one; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
17. A method in a second node for wireless communication, comprising:
transmitting first signaling, the first signaling being used to indicate a first set of time units;
receiving second signaling, the second signaling being used to indicate a first time interval;
transmitting third signaling, wherein the third signaling indicates the first multi-carrier symbol set and the first scheduling information;
detecting a first signal in the first set of multicarrier symbols;
wherein when a second set of multi-carrier symbols belongs to the first set of time units, a first node performs a first listening to determine whether to wirelessly transmit in the first set of multi-carrier symbols; if yes, the first node sends a first signal in the first multi-carrier symbol set; if not, the first node gives up wireless transmission in the first multi-carrier symbol set; when the second multi-carrier symbol set does not belong to the first time unit set, the first node transmits a first signal in the first multi-carrier symbol set; the first node is the sender of the second signaling; the first scheduling information is applied to the first signal, and the second multi-carrier symbol set corresponds to multi-carrier symbols in the first multi-carrier symbol set one-to-one; the time interval between any one of the second set of multicarrier symbols and a corresponding one of the first set of multicarrier symbols is the first time interval.
18. A method in a second node according to claim 16 or 17, comprising:
transmitting a fourth signaling; the fourth signaling is used to determine a second time interval, the first time interval being related to the second time interval.
CN201910539072.6A 2019-06-20 2019-06-20 Method and apparatus in a node for wireless communication Active CN112118631B (en)

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