WO2023241541A1 - sidelink数据传输方法及终端 - Google Patents
sidelink数据传输方法及终端 Download PDFInfo
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- WO2023241541A1 WO2023241541A1 PCT/CN2023/099832 CN2023099832W WO2023241541A1 WO 2023241541 A1 WO2023241541 A1 WO 2023241541A1 CN 2023099832 W CN2023099832 W CN 2023099832W WO 2023241541 A1 WO2023241541 A1 WO 2023241541A1
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- 238000000034 method Methods 0.000 title claims abstract description 91
- 230000005540 biological transmission Effects 0.000 title claims abstract description 86
- 238000004891 communication Methods 0.000 claims abstract description 44
- 238000012545 processing Methods 0.000 claims description 28
- 238000012790 confirmation Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 8
- 230000006870 function Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 235000019527 sweetened beverage Nutrition 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
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- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 description 3
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- 238000006731 degradation reaction Methods 0.000 description 3
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Classifications
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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
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
Definitions
- the present application belongs to the field of communication technology, and specifically relates to a sidelink data transmission method and terminal.
- LTE Long Term Evolution
- UE User Equipment
- LTE sidelink communicates based on broadcast. Although it can be used to support basic security communications of vehicle to everything (V2X), it is not suitable for other more advanced V2X services.
- the 5G NR (New Radio) system supports more advanced sidelink transmission design, such as unicast, multicast or multicast, etc., thus supporting more comprehensive service types.
- 5G NR uses high-frequency bands such as millimeter waves. Since the propagation loss of high-frequency bands is greater than that of low-frequency bands, its coverage distance is worse than that of LTE.
- Beam Forming is a signal processing technique that uses an array of sensors to send and receive signals in a direction. Beamforming technology adjusts the parameters of the basic units of the phase array so that signals at certain angles obtain constructive interference, while signals at other angles obtain destructive interference, so that the antenna beam points in a specific direction.
- the establishment of downlink beams is generally determined by synchronization signal/physical broadcast channel signal block/synchronization signal block (Synchronization Signal and PBCH block, SSB) and channel state information reference signal (Channel State Information-Reference Signal, CSI-RS) reference signal.
- Synchronization Signal and PBCH block Synchronization Signal and PBCH block, SSB
- channel state information reference signal Channel State Information-Reference Signal, CSI-RS
- the same SSB is sent to different directions in the form of beams in NR according to Time Division Duplexing (TDD), so that terminals in all directions can receive it.
- TDD Time Division Duplexing
- the base station Multiple SSBs (corresponding to different SSB indexes) are sent to cover different directions respectively.
- the terminal receives multiple SSBs with different signal strengths and selects the strongest one as its own SSB beam.
- the receiving end may need to receive data from multiple transmitting ends in a short period of time, which may be affected by the directional characteristics of the beam and the beam switching time. As a result, the receiving end cannot receive all data. Therefore, some research and design are needed so that the sending and receiving ends can try to avoid communication failure or even system performance degradation due to beam reception.
- Embodiments of the present application provide a sidelink data transmission method and terminal, which can solve the problem of communication failure or even system performance degradation due to the use of beam reception in sidelink.
- a sidelink data transmission method including: the first terminal performs at least one of the following: determining a first beam; sending a first message to a third terminal; wherein the first beam is used in the first The first resource is the transmission resource of the second terminal; the first message is used to indicate at least one of the following: unrecommended resources; recommended resources, resource conflicts; beam information; confirming the first The resources or beams indicated by the third terminal are rejected.
- a sidelink data transmission device applied to a first terminal, including at least one of the following: a processing module, used to determine the first beam; a sending module, used to send the first message to the third terminal; wherein , the first beam is used to communicate on a first resource, and the first resource is a transmission resource of the second terminal; the first message is used to indicate at least one of the following: non-recommended resources; recommended resources, Resource conflicts; beam information; confirm the resources or beams indicated by the third terminal, and reject the resources or beams indicated by the third terminal.
- a terminal in a third aspect, includes a processor and a memory.
- the memory stores programs or instructions that can be run on the processor.
- the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect.
- a terminal including a processor and a communication interface, wherein the processor is used to determine a first beam, and the communication interface is used to send a first message to a third terminal; wherein the first The beam is used to communicate on the first resource, and the first resource is the transmission resource of the second terminal; the first message is used to indicate at least one of the following: unrecommended resources; recommended resources, resource conflicts; beam information; confirm the resources or beams indicated by the third terminal, and reject the third terminal. Three resources or beams indicated by the terminal.
- a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented.
- a chip in a sixth aspect, includes a processor and a communication interface.
- the communication interface is coupled to the processor.
- the processor is used to run programs or instructions to implement the method described in the first aspect. A step of.
- a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the method described in the first aspect. Method steps.
- the first terminal performs at least one of the following: determining a first beam; sending a first message to the third terminal, the first beam is used for communication on a first resource, and the first resource is Transmission resources of the second terminal; the first message is used to indicate at least one of the following: unrecommended resources; recommended resources, resource conflicts; beam information; confirm the resources or beams indicated by the third terminal, and reject all resources or beams indicated by the third terminal.
- the embodiments of the present application are beneficial to the first terminal's use of beams for sidelink data transmission and improve the performance of the communication system.
- Figure 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application.
- Figure 2 is a schematic flow chart of a sidelink data transmission method according to an embodiment of the present application.
- Figure 3 is a schematic structural diagram of a sidelink data transmission device according to an embodiment of the present application.
- Figure 4 is a schematic structural diagram of a communication device according to an embodiment of the present application.
- Figure 5 is a schematic structural diagram of a terminal according to an embodiment of the present application.
- first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects Usually one type, The number of objects is not limited. For example, the first object may be one or multiple.
- “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
- LTE Long Term Evolution
- LTE-Advanced, LTE-A Long Term Evolution
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single-carrier Frequency Division Multiple Access
- NR New Radio
- FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
- the wireless communication system includes a terminal 11 and a network side device 12.
- the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer.
- Tablet Personal Computer Tablet Personal Computer
- laptop computer laptop computer
- PDA Personal Digital Assistant
- PDA Personal Digital Assistant
- UMPC ultra-mobile personal computer
- UMPC mobile Internet device
- MID mobile Internet Device
- AR augmented reality
- VR virtual reality
- robots wearable devices
- WUE Vehicle User Equipment
- PUE Pedestrian User Equipment
- smart home home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.
- game consoles personal computers (personal computer, PC), teller machine or self-service machine and other terminal-side devices.
- Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc.
- the network side device 12 may include an access network device or a core network device, where the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a wireless device. access network unit.
- RAN Radio Access Network
- Access network equipment can include base stations, wireless Wireless Local Area Network (Wireless Local Area Network, WLAN) access point or Wireless Fidelity (Wireless Fidelity, WiFi) node, etc.
- the base station can be called Node B, Evolved Node B (eNB), access point, base transceiver station ( Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B-node, home evolved B-node, transmitting and receiving point ( Transmitting Receiving Point (TRP) or some other appropriate terminology in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only in the NR system The base station is introduced as an example, and the specific type of base station is not limited.
- this embodiment of the present application provides a sidelink data transmission method 200.
- the method can be executed by the first terminal.
- the method can be executed by software or hardware installed on the first terminal.
- the method includes the following step.
- the first terminal performs at least one of the following: determining a first beam; sending a first message to a third terminal; wherein the first beam is used for communication on a first resource, and the first resource is the second terminal Transmitting resources; the first message is used to indicate at least one of the following: unrecommended resources; recommended resources, resource conflicts; beam information; confirm the resources or beams indicated by the third terminal, and reject the third The resource or beam indicated by the terminal.
- the first terminal may be a terminal that receives sidelink data; the second terminal and the third terminal may be terminals that send sidelink data.
- the sidelink data can be referred to as data, which is a general term and can include at least one of the following: control information, feedback information, target data (specific one or more data), reference signal, etc.
- Various embodiments of the present application can be applied in the frequency range 2 (Frequency range 2, FR2) frequency band, in a scenario where one receiving end (i.e., the first terminal) faces multiple transmitting ends (i.e., the second terminal, the third terminal).
- FR2 Frequency range 2, FR2
- the first terminal may determine a first beam, the first beam is used for communication on a first resource, and the first resource is a transmission resource of the second terminal. This embodiment facilitates the first terminal to communicate through the first beam and realize sidelink data transmission.
- the first terminal may determine the first beam in the following two situations:
- the first terminal selects one of the transmission beams indicated by multiple transmitting terminals (such as the second terminal, the third terminal, etc.).
- the first terminal selects the beam indicated by the second terminal.
- the first beam may be a receiving beam of the first terminal, a transmitting beam of the second terminal, or a pair of beams.
- the second terminal indicates a beam pair, which includes a transmit beam of the second terminal and a receive beam of the first terminal; in another example, the second terminal may indicate its own transmit beam, and the first terminal The corresponding receiving beam can be determined.
- the first terminal chooses to communicate (including sending or receiving) on a certain resource (such as the first resource), and therefore determines the first beam.
- the first terminal chooses to receive the data sent on the first resource instructed by the second terminal. Since the second terminal will also instruct the transmission beam, the first terminal chooses to receive the data of the second terminal, which is equivalent to determining First beam.
- the first beam may be a transmitting beam of the second terminal, or may be a receiving beam of the first terminal.
- the first terminal determining the first beam includes: the first terminal determining using the first beam for communication on the first resource.
- the first terminal determines to use the first beam to receive data on the first resource, since it cannot simultaneously use beams other than the first beam to receive data from other terminals (ie, the third terminal), if the other terminals continue to use their Sending data using the beam you choose will result in a waste of resources and a decrease in system performance.
- the first terminal may also send a first message to the third terminal, where the first message is used to indicate at least one of the following: unrecommended resources; recommended resources, resource conflicts; Beam information: confirm the resources or beams indicated by the third terminal, and reject the resources or beams indicated by the third terminal.
- the first message may indicate to the third terminal that the first resource is an unrecommended resource, preventing the third terminal from selecting the first resource to send data, so that the third terminal can avoid the first terminal using the first beam to receive data.
- Time for another example, the first message may indicate to the third terminal that the first resource is a recommended resource, and the first terminal expects that the transmission resource selected by the third terminal is located within the time range of the first terminal using the first beam for data reception and the first The transmitting beams used by the three terminals can also be received by the first beam. In this way, the first terminal can use the first beam to receive data sent by multiple terminals; for another example, the first message can indicate the information of the first beam to the third terminal.
- the third terminal can switch to the transmission beam corresponding to the first beam that meets the reception requirements, it can use the switched transmission beam to send data to the first terminal. If the third terminal cannot switch to the transmission beam corresponding to the first beam, transmission beam, the third terminal can perform resource reselection and other operations; for another example, the first message includes a resource conflict indication, so that after receiving the conflict indication, the third terminal can adjust the transmission resources in advance through resource reselection and other methods to avoid Conflicts with the first resource; for another example, the first consumer The first message is used to confirm the resources and/or beams indicated by the third terminal; for another example, the first message is used to reject the resources and/or beams indicated by the third terminal.
- the first message may be carried on at least one of the following: sidelink control information (Sidelink Control Information, SCI), media access control control element (Media Access Control Control Element, MAC CE), physical side link Feedback channel (Physical Sidelink Feedback Channel, PSFCH), Radio Resource Control (Radio Resource Control, RRC) message, Physical Sidelink Shared Channel (Physical Sidelink Shared Channel, PSSCH).
- sidelink control information SCI
- media access control control element Media Access Control Control Element, MAC CE
- Physical side link Feedback channel Physical Sidelink Feedback Channel
- PSFCH Physical Sidelink Feedback Channel
- RRC Radio Resource Control
- Physical Sidelink Shared Channel Physical Sidelink Shared Channel
- determining the first beam by the first terminal and sending the first message to the third terminal can also be two independent actions.
- the first terminal can also only determine the first beam; or, Only the first message is sent to the third terminal.
- the first terminal performs at least one of the following: determining a first beam; sending a first message to the third terminal, where the first beam is used for communication on the first resource, and the The first resource is the transmission resource of the second terminal; the first message is used to indicate at least one of the following: unrecommended resources; recommended resources, resource conflicts; beam information; confirming the resources indicated by the third terminal or Beam: reject the resource or beam indicated by the third terminal.
- the embodiments of the present application are beneficial to the first terminal's use of beams for sidelink data transmission and improve the performance of the communication system.
- the first terminal when facing multiple transmitters in the FR2 scenario, the first terminal sends a first message.
- the first message can be an instruction message or a cooperation message to avoid being unable to receive specific data due to the use of directional beams.
- Improve communication system performance by solving the problem of packet loss or system performance degradation caused by data from other terminals.
- the first terminal determining the first beam includes: the first terminal determines the first beam according to at least one of the following:
- the time T when the first terminal expects to use one beam to receive data may be the time (or duration) T may be the shortest time that the first terminal expects to receive using one beam.
- the selected first beam is the transmission beam, beam pair (beam pair) indicated by the terminal with the highest data priority (ie, the second terminal) to be sent to the first terminal, or the indicated beam pair.
- the receiving beam of , the first beam selected is the sending beam, receiving beam, and beam pair corresponding to the highest priority data that can be received by the first terminal within time T, Or the receiving beam corresponding to the beam pair; for another example, when considering receiving the Physical Sidelink Feedback Channel (PSFCH), the first beam selected is the beam with the highest priority corresponding to the PSFCH.
- PSFCH Physical Sidelink Feedback Channel
- the first beam selected is a transmit beam, a receive beam, and a beam pair whose RSRP is greater than a threshold (threshold).
- the first beam selected can receive the most PSFCH, or receive the most Physical Sidelink Shared Channel (PSSCH), or receive the most Physical Sidelink Control Channel (PSCCH) .
- PSSCH Physical Sidelink Shared Channel
- PSCCH Physical Sidelink Control Channel
- the terminal selects a beam to receive at time T.
- the processing time of beam switching needs to be considered.
- Type of data For example, select a beam that preferentially receives broadcasts, select a beam that only accepts negative acknowledgment (NACK only, NACK only) multicast, select a beam that requires or does not require Hybrid automatic repeat request (HARQ) feedback wait.
- NACK only, NACK only negative acknowledgment
- HARQ Hybrid automatic repeat request
- the first beam may also be an omnidirectional beam.
- the first terminal can meet the reception requirements, such as RSRP requirements, when using omnidirectional beams, it can use omnidirectional beams to receive, thereby avoiding possible problems caused by using directional beams that can only receive data in certain directions. The problem.
- the first message satisfies at least one of the following:
- the sending method of the first message is broadcast, multicast or unicast.
- the first terminal indicates through the second beam that the first resource is a non-preferred resource.
- This example can avoid the situation where the third terminal uses different beams to transmit data on the same resource (ie, the first resource), resulting in failure to receive data, and improves the performance of the communication system.
- the first message is carried on terminal coordination information (Inter-UE Coordination, IUC).
- IUC Inter-UE Coordination
- the sending time of the first message is no later than time K, and the time K is determined by at least one of the following: the time when the first terminal switches to the first beam, the time when the first resource is located, The processing time of the first message, the time of resource location indicated by the third terminal, and the time of resource reselection. For example, because the first terminal sends the first message to the third terminal and expects the third terminal not to send data to itself on the first resource, it is required that the time when the first terminal sends the first message cannot be later than time K.
- the first message includes at least one of the following:
- the first message carries time-frequency domain information of the first resource and/or an identifier indicating that the first resource is an unrecommended resource. This example can avoid the situation where the third terminal uses different beams to transmit data on the same resource (ie, the first resource), resulting in the first terminal being unable to receive part of the data, and improves the performance of the communication system.
- the first message carries time-frequency domain indication information of the resource set and/or an identifier indicating that the current resource set is a non-recommended resource. This example can avoid the situation where the third terminal uses different beams to transmit data on this resource set, resulting in the first terminal being unable to receive part of the data, and improves the performance of the communication system.
- the resources within the time period in which the first terminal expects to use the first beam for data reception may include the first resource, may also include resources other than the first resource, and may also include resources in the first resource. Some resources are not limited in the embodiments of this application.
- This example can avoid the situation where the third terminal uses different beams to transmit data on the same resource, resulting in failure to receive data, and improves the performance of the communication system.
- the time range for receiving using the first beam For example, the first terminal informs other terminals of the time range to use the first beam for reception, and expects other terminals to either avoid this time range, or use the first beam or the transmission beam corresponding to the first beam to transmit within this time range, thus facilitating The first terminal receives the data.
- the identification of the beam used by the first terminal to receive data can indicate the identity of the beam it will use (such as the identity of the first beam). If other terminals can adjust it, they will use the transmitting beam corresponding to this beam to transmit; if they cannot adjust, they will not transmit. transmission.
- the identification of the beam may include at least one of the following: beam sequence number, corresponding reference signal identification, transmission configuration indicator (Transmission Configuration Indicator, TCI) state (state), quasi-co-location (Quasi-Co-Location, QCL) ) information, scrambling codes, etc.
- the confirmation information indicates confirming the resources or beams indicated by the third terminal.
- the first message carries a positive acknowledgment (ACK) feedback, confirming that the third terminal can use the indicated resource or beam to transmit data, indicating that the first terminal can receive data from the third terminal.
- ACK positive acknowledgment
- the rejection information indicates that the resources or beams indicated by the third terminal are rejected.
- the first message carries NACK feedback, rejecting the information that the third terminal can use the indicated resources or beams to send data, indicating that the first terminal will not receive the data currently indicated by the third terminal.
- the first message is used to indicate at least one of the following:
- the first message carries a resource set and/or an identifier, indicating that the resources in the indicated resource set are resources within the time period during which the first terminal expects to use the first beam for data reception, and it is expected that the third The third terminal can use these recommended resources to communicate with the first terminal.
- the identification of the beam used by the first terminal to receive for example, the identification of the first beam. Indicates that the first terminal decides to use the first beam or the receiving beam of the first beam for reception on the indicated resource.
- the sending method of the first message may be broadcast, multicast or unicast.
- the first terminal uses resource recommendation so that it can use one beam (ie, the first beam) to simultaneously or continuously receive resources sent by the second terminal and the third terminal, thereby improving resource utilization and improving communication system performance.
- the first message may be sent by the first terminal when a first condition is met, and the first condition includes at least one of the following:
- the receiving beams corresponding to the transmitting beams indicated by the second terminal and the third terminal are the same.
- the first terminal uses the first beam to receive a measurement value of the transmission beam indicated by the third terminal that is greater than the first threshold. For example, when the first terminal uses the first beam to receive the measured value (RSRP) of the transmit beam indicated by the third terminal is greater than the first threshold, that is, even if it is not an optimal pairing, a beam that does not affect reception can be used.
- RSRP measured value
- the resources indicated by the third terminal are continuous or the same in time domain as the resources indicated by the second terminal.
- the transmission beams or beam pairs indicated by the second terminal and the third terminal are different, the resources indicated by the third terminal are continuous or the same in time domain as the resources indicated by the second terminal, and when the first terminal receives the data of the second terminal, In this case, when the first terminal has no time to perform beam switching and receives resources from the third terminal or resources with lower priority, it instructs the third terminal through the first message to switch the beam for transmission, for example, switch to the same beam as the second terminal. beam.
- the method further includes: the first terminal uses directional beam reception when a second condition is met; wherein the second condition includes at least one of the following: one:
- the resource pool configured by the first terminal enables directional beam reception based on beam indication.
- the RSRP of the first terminal for omnidirectional reception is less than the second threshold.
- the first message is used to indicate that the transmission resource of the third terminal conflicts with the first resource.
- the first message may be sent by the first terminal when a third condition is met, and the third condition includes at least one of the following:
- the resources indicated by the third terminal are continuous or the same in time domain as the resources indicated by the second terminal.
- the priority of the data sent by the third terminal is lower than the priority of the data sent by the second terminal.
- the first terminal by sending a conflict indication, the first terminal expects the third terminal to perform resource reselection, etc., to prevent the first terminal from being unable to receive corresponding resources and affecting performance, thereby improving the performance of the communication system.
- the first message may be used to trigger the third terminal to perform a first action, and the first action includes at least one of the following:
- Resource reselection That is, after receiving the first message, the third terminal avoids sending data on the first resource to the first terminal through resource reselection.
- the third terminal selects a transmission beam that the first terminal can receive to send data to the first terminal.
- the second terminal is determined by the first terminal according to at least one of the following:
- the selected second terminal is the terminal with the highest priority of data sent to the first terminal.
- the selected second terminal is a terminal whose RSRP sent to the first terminal is greater than the threshold.
- the data mentioned in various embodiments of this application include at least one of the following: control information, feedback information, target data, and reference signals.
- the method further includes: the first terminal sends a second message to the second terminal, where the second message is a confirmation information.
- the second message may be carried on at least one of the following: SCI, MAC CE,
- the second message satisfies at least one of the following: 1) the sending method of the second message is broadcast, multicast or unicast; 2) the sending time of the second message is no later than time T,
- the time T is determined by at least one of the following: the time when the first terminal switches to the first beam, the time when the first resource is located, and the processing time of the first message.
- the receiving end coordinates the behavior of the sending end.
- terminal A i.e., the first terminal
- terminal A determines to use a directional beam (such as the first beam) to receive data at a certain time or within a certain period
- it cannot use beams other than this beam to receive other terminals (such as the third terminal)
- other terminals such as the third terminal
- the terminal can adopt the following methods (corresponding to the role of the first message mentioned above):
- Non-preferred resources allow other terminals to avoid sending to themselves on these resources, regardless of whether they receive beam instructions.
- terminal A can send recommended resources to the receiving beam.
- the terminal enables the terminal to re-select the transmission resources to utilize the reception of terminal A.
- terminal A After receiving beam instructions from multiple terminals and determining the receiving beam according to certain rules, terminal A sends conflict instructions to terminals that cannot receive the signals, so that these terminals can adjust their transmission resources in advance through resource reselection and other methods.
- the execution subject may be a sidelink data transmission device.
- the sidelink data transmission device performing the sidelink data transmission method is used as an example to illustrate the sidelink data transmission device provided by the embodiment of the present application.
- FIG 3 is a schematic structural diagram of a sidelink data transmission device according to an embodiment of the present application. This device can be applied to the first terminal. As shown in Figure 3, the device 300 includes the following modules.
- the processing module 302 is used to determine the first beam.
- Sending module 304 configured to send a first message to a third terminal; wherein the first beam is used to communicate on a first resource, and the first resource is a sending resource of the second terminal; the first message is Instructing at least one of the following: unrecommended resources; recommended resources, resource conflicts; beam information; confirming the resources or beams indicated by the third terminal, and rejecting the resources or beams indicated by the third terminal.
- the processing module determines the first beam; the sending module sends the first message to the third terminal, and the first beam is used to communicate on the first resource,
- the first resource is a transmission resource of the second terminal; the first message is used to indicate at least one of the following: unrecommended resources; recommended resources, resource conflicts; beam information; confirming the information indicated by the third terminal resources or beams, and reject the resources or beams indicated by the third terminal.
- the embodiments of the present application are beneficial to the first terminal's use of beams for sidelink data transmission and improve the performance of the communication system.
- the processing module 302 is configured to determine the first beam according to at least one of the following: 1) the time T when the device expects to use one beam for data reception; 2) the priority of data level; 3) RSRP; 4) The amount of data received by each beam; 5) Whether the time required to switch to the target beam meets the processing time; 6) The type of data.
- the first beam is an omnidirectional beam.
- the first message satisfies at least one of the following: 1) the sending method of the first message is broadcast, multicast or unicast; 2) through the second beam indication, the first message The second beam is different from the first beam; 3) the first message is carried on the IUC; 4) the sending time of the first message is no later than time K, and the time K is determined by at least one of the following: The time when the device switches to the first beam, the time when the first resource is located, the processing time of the first message, the time when the resource is located indicated by the third terminal, and the time when resources are reselected. For example, the first terminal needs to send a first message to notify the third terminal that the reception cannot be performed.
- the time for sending the first message needs to be earlier than the time when the resource is located indicated by the third terminal, taking into account the processing time reserved for the first message, the time for resource reselection, etc. If they are all indicated first resources, then they need to be earlier than the time of the first resource, plus the processing time of the first message and/or resource reselection time, etc.
- the first message includes at least one of the following: 1) indicating that the first resource is an unrecommended resource; 2) indicating that the device desires to use the first beam for data reception The resources within the time period are not recommended resources; 3) the time range of using the first beam for reception; 4) the identification of the beam used by the device to receive data; 5) the identity of the beam used by the device to receive data The identification of the corresponding transmission beam; 6) the identification ID of the device; 7) confirmation information indicating confirmation of the resource or beam indicated by the third terminal; 8) rejection information indicating rejection of the The resource or beam indicated by the third terminal.
- the first message is used to indicate at least one of the following: 1) Recommended resources, where the recommended resources include the device's desire to use the first beam for data access. resources within the time period of receiving data; 2) the identifier of the beam used by the device to receive data; 3) the identifier of the corresponding transmitting beam of the beam used by the device to receive data.
- the first message is sent when a first condition is met, and the first condition includes at least one of the following: 1) the second terminal and the third terminal The indicated beams are quasi-co-located; 2) the receiving beams corresponding to the beams indicated by the second terminal and the third terminal are quasi-co-located; 3) the transmit beams indicated by the second terminal and the third terminal or The beam pairs are the same; 4) the receiving beams corresponding to the transmitting beams indicated by the second terminal and the third terminal are the same; 5) the receiving beams corresponding to the beam pairs indicated by the second terminal and the third terminal Same; 6) The device uses the first beam to receive the measurement value of the transmit beam indicated by the third terminal is greater than the first threshold; 7) The resources indicated by the third terminal are different from the resources indicated by the second terminal The time domain is continuous or the same.
- the device further includes a receiving module, configured to use directional beam reception when a second condition is met; wherein the second condition includes at least one of the following: 1) The resource pool configured by the device enables directional beam reception based on beam indication; 2) the RSRP of omnidirectional reception by the device is less than the second threshold; 3) the priority of data received by the device is higher than the third threshold.
- the first message is used to indicate that the transmission resource of the third terminal conflicts with the first resource.
- the first terminal uses a terminal cooperation mechanism or HARQ feedback to send a first message to inform the third terminal that the transmission resource indicated by the first terminal conflicts with the resource determined by the first terminal to receive the second terminal, and the third terminal is expected to perform resource reselection and other operations. , to avoid invalid transmission or unnecessary interference.
- the first message is sent when a third condition is met, and the third condition includes at least one of the following: 1) the second terminal and the third terminal The indicated beams are not quasi-co-located; 2) the corresponding beams of the beams indicated by the second terminal and the third terminal are not quasi-co-located; 3) the transmitting beams indicated by the second terminal and the third terminal or The beam pairs are different; 4) The resources indicated by the third terminal are continuous or the same in time domain as the resources indicated by the second terminal; 5) The priority of the data sent by the third terminal is lower than that sent by the second terminal The priority of the data.
- the first message is used to trigger the third terminal to perform a first action, and the first action includes at least one of the following: 1) resource reselection; 2) beam reselection; 3) Packet loss.
- the first message is carried on at least one of the following: SCI, MAC CE, PSFCH, RRC, and PSSCH.
- the second terminal is determined based on at least one of the following: 1) indicating the priority of data received by the device; 2) indicating the measurement value RSRP on the receiving resource of the device.
- the data includes at least one of the following: control information, feedback information, target data, and reference signal.
- the processing module 302 is configured to determine to use the first beam for communication on the first resource.
- the sending module 304 is also configured to send a second message to the second terminal, where the second message is confirmation information.
- the second message may be carried on at least one of the following: SCI, MAC CE, PSFCH, RRC, and PSSCH.
- the second message satisfies at least one of the following: 1) the sending method of the second message is broadcast, multicast or unicast; 2) the sending time of the second message does not Later than time T, the time T is determined by at least one of the following: the time when the device switches to the first beam, the time when the first resource is located, and the processing time of the first message.
- the device 300 can refer to the process of the method 200 corresponding to the embodiment of the present application, and each unit/module and the above-mentioned other operations and/or functions in the device 300 are respectively to implement the corresponding process in the method 200, And can achieve the same or equivalent technical effects. For the sake of simplicity, they will not be described again here.
- the sidelink data transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
- the electronic device may be a terminal or other devices other than the terminal.
- terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
- NAS Network Attached Storage
- the sidelink data transmission device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 2 and achieve the same technical effect. To avoid duplication, it will not be described again here.
- this embodiment of the present application also provides a communication device 400, which includes a processor 401 and a memory 402.
- the memory 402 stores programs or instructions that can be run on the processor 401, for example.
- the communication device 400 is a terminal
- the program or instruction is processed by the processor 401
- each step of the above sidelink data transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, details will not be described here.
- An embodiment of the present application also provides a terminal, including a processor and a communication interface.
- the processor is used to determine a first beam, and the communication interface is used to send a first message to a third terminal; wherein the first beam is For communicating on a first resource, the first resource is a transmission resource of the second terminal; the first message is used to indicate at least one of the following: unrecommended resources; recommended resources, resource conflicts; beam information; Confirm the resources or beams indicated by the third terminal, and reject the resources or beams indicated by the third terminal.
- This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment.
- Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
- FIG. 5 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
- the terminal 500 includes but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, etc. At least some parts.
- the terminal 500 may also include a power supply (such as a battery) that supplies power to various components.
- the power supply may be logically connected to the processor 510 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
- the terminal structure shown in FIG. 5 does not constitute a limitation on the terminal.
- the terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.
- the input unit 504 may include a graphics processor (Graphics Processing Unit, GPU) 5041 and a microphone 5042.
- the graphics processor 5041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras).
- the display unit 506 may include a display panel 5061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
- the user input unit 507 includes a touch panel 5071 and at least one of other input devices 5072 . Touch panel 5071, also called touch screen.
- the touch panel 5071 may include two parts: a touch detection device and a touch controller.
- Other input devices 5072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
- the radio frequency unit 501 after receiving downlink data from the network side device, the radio frequency unit 501 can transmit it to the processor 510 for processing; in addition, the radio frequency unit 501 can send data to the network side device. Upstream data.
- the radio frequency unit 501 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
- Memory 509 may be used to store software programs or instructions as well as various data.
- the memory 509 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
- memory 509 may include volatile memory or non-volatile memory, or memory 509 may include both volatile and non-volatile memory.
- non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory
- Memory 509 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.
- the processor 510 may include one or more processing units; optionally, the processor 510 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 510.
- the radio frequency unit 501 may be used to send the first message to the third terminal.
- the processor 510 may be used to determine the first beam; wherein the first beam is used to communicate on a first resource, and the first resource is a transmission resource of the second terminal; the first message is used to indicate the following At least one of: non-recommended resources; recommended resources, resource conflicts; beam information; confirm the resources or beams indicated by the third terminal, and reject the resources or beams indicated by the third terminal.
- the terminal provided by the embodiment of the present application can perform at least one of the following: determine the first beam; send the first message to the third terminal, the first beam is used for communication on the first resource, and the first resource is the second Transmitting resources of the terminal; the first message is used to indicate at least one of the following: not recommended Resources; recommended resources, resource conflicts; beam information; confirm the resources or beams indicated by the third terminal, and reject the resources or beams indicated by the third terminal.
- the embodiment of the present application is beneficial to the sidelink data transmission by the first terminal using beams, improving the performance of the communication system.
- the terminal 500 provided by the embodiment of the present application can also implement each process of the above sidelink data transmission method embodiment, and can achieve the same technical effect. , to avoid repetition, will not be repeated here.
- Embodiments of the present application also provide a readable storage medium.
- Programs or instructions are stored on the readable storage medium.
- the program or instructions are executed by a processor, each process of the above sidelink data transmission method embodiment is implemented, and can achieve The same technical effects are not repeated here to avoid repetition.
- the processor is the processor in the terminal described in the above embodiment.
- the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
- An embodiment of the present application further provides a chip.
- the chip includes a processor and a communication interface.
- the communication interface is coupled to the processor.
- the processor is used to run programs or instructions to implement the above sidelink data transmission method embodiment. Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.
- chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
- Embodiments of the present application further provide a computer program/program product.
- the computer program/program product is stored in a storage medium.
- the computer program/program product is executed by at least one processor to implement the above sidelink data transmission method.
- Each process in the example can achieve the same technical effect. To avoid repetition, we will not repeat it here.
- Embodiments of the present application also provide a sidelink data transmission system, including: a terminal and a network-side device.
- the terminal can be used to perform the steps of the sidelink data transmission method as described above.
- the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
- the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
- the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.
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Abstract
本申请实施例公开了一种sidelink数据传输方法及终端,属于通信技术领域,本申请实施例的sidelink数据传输方法包括:第一终端执行如下至少之一:确定第一波束;发送第一消息给第三终端;其中,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。
Description
交叉引用
本发明要求在2022年06月14日提交中国专利局、申请号为202210669850.5、发明名称为“sidelink数据传输方法及终端”的中国专利申请的优先权,该申请的全部内容通过引用结合在本发明中。
本申请属于通信技术领域,具体涉及一种旁链路(sidelink)数据传输方法及终端。
长期演进(Long Term Evolution,LTE)***支持sidelink传输,即终端(User Equipment,UE)之间直接在物理层上进行数据传输。LTE sidelink是基于广播进行通讯的,虽然可用于支持车联网(vehicle to everything,V2X)的基本安全类通信,但不适用于其他更高级的V2X业务。5G NR(New Radio)***支持更加先进的sidelink传输设计,例如,单播,多播或组播等,从而可以支持更全面的业务类型。
由于低频资源的匮乏,5G NR使用了如毫米波这样的高频段,由于高频段的传播损耗比低频要大,所以其覆盖距离相比LTE要差。为了解决这个问题,一个解决方案是通过多天线波束赋形(Beam Forming)方式来实现对信号的加强,进而实现覆盖的增强。波束赋形是一种使用传感器阵列定向发送和接收信号的信号处理技术。波束赋形技术通过调整相位阵列的基本单元的参数,使得某些角度的信号获得相长干涉,而另一些角度的信号获得相消干涉,使天线波束指向某个特定的方向。下行的波束的建立一般通过同步信号/物理广播信道信号块/同步信号块(Synchronization Signal and PBCH block,SSB)以及信道状态信息参考信号(Channel State Information-Reference Signal,CSI-RS)参考信号确定。
以SSB为例,由于波束较窄,所以在NR中按照时分双工(Time Division Duplexing,TDD)的方式将相同的SSB通过波束的形式发送到不同方向,以使各个方向的终端都可以收到SSB。在一个例子中,在5ms的范围内,基站
发送多个SSB(对应不同的SSB索引)分别覆盖不同的方向,终端接收到多个信号强度不一样的SSB,选择一个最强的作为自己的SSB波束。
在sidelink使用波束赋形技术进行通信时,由于可能是终端自主决定资源,因此接收端可能在短时间内需要接收多个发送端的数据,就可能会因为波束的定向特性以及波束切换时间的影响,造成接收端无法进行全部接收。因此,需要进行一些研究设计,使得收发两端可以尽量避免因为波束接收而导致通信失败甚至***性能的下降的问题。
发明内容
本申请实施例提供一种sidelink数据传输方法及终端,能够解决在sidelink中因使用波束接收而导致通信失败甚至***性能的下降的问题。
第一方面,提供了一种sidelink数据传输方法,包括:第一终端执行如下至少之一:确定第一波束;发送第一消息给第三终端;其中,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。
第二方面,提供了一种sidelink数据传输装置,应用于第一终端,包括如下至少之一:处理模块,用于确定第一波束;发送模块,用于发送第一消息给第三终端;其中,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。
第三方面,提供了一种终端,该终端包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第四方面,提供了一种终端,包括处理器及通信接口,其中,所述处理器用于确定第一波束,所述通信接口用于发送第一消息给第三终端;其中,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第
三终端指示的资源或波束。
第五方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法的步骤。
第七方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的方法的步骤。
在本申请实施例中,第一终端执行如下至少之一:确定第一波束;发送第一消息给第三终端,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。本申请实施例有利于第一终端使用波束进行的sidelink数据传输,提升通信***性能。
图1是根据本申请实施例的无线通信***的示意图;
图2是根据本申请实施例的sidelink数据传输方法的示意性流程图;
图3是根据本申请实施例的sidelink数据传输装置的结构示意图;
图4是根据本申请实施例的通信设备的结构示意图;
图5是根据本申请实施例的终端的结构示意图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,
并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)***,还可用于其他无线通信***,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access,SC-FDMA)和其他***。本申请实施例中的术语“***”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的***和无线电技术,也可用于其他***和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)***,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR***应用以外的应用,如第6代(6th
Generation,6G)通信***。
图1示出本申请实施例可应用的一种无线通信***的框图。无线通信***包括终端11和网络侧设备12。其中,终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer,PC)、柜员机或者自助机等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备,其中,接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无
线局域网(Wireless Local Area Network,WLAN)接入点或无线保真(Wireless Fidelity,WiFi)节点等,基站可被称为节点B、演进节点B(eNB)、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、家用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR***中的基站为例进行介绍,并不限定基站的具体类型。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的sidelink数据传输方法进行详细地说明。
如图2所示,本申请实施例提供一种sidelink数据传输方法200,该方法可以由第一终端执行,换言之,该方法可以由安装在第一终端的软件或硬件来执行,该方法包括如下步骤。
S202:第一终端执行如下至少之一:确定第一波束;发送第一消息给第三终端;其中,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。
本申请各个实施例中,第一终端可以是接收sidelink数据的终端;第二终端和第三终端可以是发送sidelink数据的终端。后续可以将sidelink数据简称为数据,该数据为统称,可以包括如下至少之一:控制信息,反馈信息,目标数据(具体的一个或多个数据),参考信号等。
本申请各个实施例可以应用在频率范围2(Frequency range 2,FR2)频段,一个接收端(即第一终端)面对多个发送端(即第二终端,第三终端)的场景下。
该实施例中,第一终端可以确定第一波束,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源。该实施例有利于第一终端通过第一波束进行通信,实现sidelink数据传输。
该实施例中,第一终端确定第一波束可以分以下两种情况:
情况一,第一终端选择了多个发送端(如第二终端,第三终端等)指示的发送波束中的一个。该实施例中,第一终端选择了第二终端指示的波束。
该实施例中,第一波束可以是第一终端的接收波束,还可以是第二终端的发送波束,还可以是波束对。在一个例子中,第二终端指示波束对,该波束对中包括第二终端的发送波束以及第一终端的接收波束;在另一个例子中,第二终端可以指示自身的发送波束,第一终端可以确定出对应的接收波束。
情况二,第一终端选择了在某个资源(如第一资源)上进行通信(包括发送或接收),因此确定了第一波束。该实施例中,第一终端选择接收第二终端指示的在第一资源上发送的数据,由于第二终端也会指示发送波束,因此第一终端选择接收第二终端的数据,相当于确定了第一波束。该实施例中,第一波束可以是第二终端的发送波束,还可以是第一终端的接收波束。可选地,所述第一终端确定第一波束包括:所述第一终端确定在所述第一资源上使用所述第一波束进行通信。
在第一终端确定采用第一波束接收第一资源上的数据的情况下,由于无法同时使用除第一波束之外的波束接收其他终端(即第三终端)的数据,如果其他终端继续采用他们自己选择的波束进行数据发送,就会造成资源的浪费以及***性能的下降。
为了避免此情况,该实施例中,第一终端还可以发送第一消息给第三终端,所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。
具体例如,第一消息可以向第三终端指示第一资源为不推荐的资源,避免第三终端选择第一资源发送数据,使得第三终端可以避开第一终端采用第一波束进行数据接收的时间;又例如,第一消息可以向第三终端指示第一资源为推荐的资源,第一终端期望第三终端选择的发送资源位于第一终端采用第一波束进行数据接收的时间范围内以及第三终端采用的发射波束同样可以由第一波束进行接收,这样,第一终端可以利用第一波束接收多个终端的发送数据;又例如,第一消息可以向第三终端指示第一波束的信息,这样,第三终端如果可以切换到与第一波束对应的满足接收要求的发送波束,则可以使用切换后的发送波束向第一终端发送数据,第三终端如果不能切换到与第一波束对应的发送波束,则第三终端可以进行资源重选等操作;再例如,第一消息包括资源冲突指示,使得第三终端在接收到冲突指示后可以提前通过资源重选等方法调整发送资源,避免与第一资源发生冲突;再例如,第一消
息用于确认第三终端指示的资源和/或波束;再例如,第一消息用于拒绝第三终端指示的资源和/或波束。
可选地,第一消息可以承载在如下至少之一上:旁链路控制信息(Sidelink Control Information,SCI),媒体接入控制控制单元(Media Access Control Control Element,MAC CE),物理旁链路反馈信道(Physical Sidelink Feedback Channel,PSFCH),无线资源控制(Radio Resource Control,RRC)消息,物理旁链路共享信道(Physical Sidelink Shared Channel,PSSCH)。
需要说明的是,第一终端确定第一波束以及发送第一消息给第三终端还可以是两个独立的动作,在其他的实施例中,第一终端还可以仅确定第一波束;或者,仅发送第一消息给第三终端。
本申请实施例提供的sidelink数据传输方法,第一终端执行如下至少之一:确定第一波束;发送第一消息给第三终端,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。本申请实施例有利于第一终端使用波束进行的sidelink数据传输,提升通信***性能。
本申请实施例中,在FR2场景下在面对多个发送端时,第一终端通过发送第一消息,第一消息可以是指示消息或协作消息,避免因使用定向波束接收特定数据而无法接收其他终端的数据导致的数据包丢失或***性能下降的问题,提升通信***性能。
可选地,在图2所示的实施例的基础上,所述第一终端确定第一波束包括:所述第一终端根据如下至少之一确定所述第一波束:
1)所述第一终端期望利用一个波束进行数据接收的时间T。例如,时间(或称时长)T可以是第一终端期望利用一个波束接收的最短时间。
2)数据的优先级。例如,选择的第一波束(beam)是要发送给第一终端的数据优先级最高的终端(即第二终端)所指示的发送波束,波束对(beam pair),或指示的波束对所对应的接收波束;又例如,选择的第一波束是时间T内发送给第一终端的数据优先级最高的终端所指示的发送波束,波束对,或指示的波束对所对应的接收波束;再例如,选择的第一波束是时间T内第一终端可以接收到的优先级最高的数据对应的发送波束,接收波束,波束对,
或波束对所对应的接收波束;又例如,考虑到接收物理旁链路反馈信道(Physical Sidelink Feedback Channel,PSFCH)时,选择的第一波束是PSFCH对应的优先级最高的波束。
3)参考信号接收功率(Reference Signal Receiving Power,RSRP)。例如,选择的第一波束为RSRP大于阈值(threshold)的发送波束,接收波束,波束对。
4)每个波束接收数据的数据量。例如,选择的第一波束可以接收最多的PSFCH,或接收最多的物理旁链路共享信道(Physical Sidelink Shared Channel,PSSCH),或接收最多的物理旁链路控制信道(Physical Sidelink Control Channel,PSCCH)。
5)切换到目标波束所需的时长是否满足处理时长。例如,从当前波束中,选择满足处理时间的波束,所述处理时间为切换到目标波束所需的时间(即无法完成切换的波束不选择)。例如,终端选择了一个波束在T时刻进行接收,在确定T+1时刻的接收波束时,需要考虑波束切换的处理时间。
6)数据的类型。例如,选择优先接收广播的波束,或选择仅接受否定应答(Negative Acknowledgement only,NACK only)的组播的波束,选择需要或不需要混合自动重传请求(Hybrid automatic repeat request,HARQ)反馈的波束等。
可选地,在图2所示的实施例的基础上,所述第一波束还可以为全向波束。例如,如果第一终端可以在采用全向波束时满足接收的要求,比如RSRP要求等时,就可以采用全向波束进行接收,从而避免因为采用定向波束只能接收某些方向上的数据可能造成的问题。
可选地,在图2所示的实施例的基础上,所述第一消息满足如下至少之一:
1)所述第一消息的发送方式为广播,组播或单播。
2)通过第二波束指示,所述第二波束和所述第一波束不同。例如,第一终端通过第二波束指示第一资源为不推荐(non-preferred)的资源。该例子可以避免第三终端在相同的资源上(即第一资源上)利用不同的波束进行数据发送,导致无法接收到数据的情况,提高通信***性能。
3)所述第一消息承载在终端协作信息(Inter-UE Coordination,IUC)上。
4)所述第一消息的发送时刻不晚于时刻K,所述时刻K由如下至少之一确定:所述第一终端切换到所述第一波束的时间,所述第一资源所在时刻,所述第一消息的处理时间,所述第三终端指示的资源所在时刻,资源重选的时间。例如,因为第一终端发送第一消息给第三终端,期望第三终端不要在第一资源发送数据给自己,就需要第一终端发送第一消息的时刻不能晚于时刻K。
可选地,所述第一消息包括如下至少一项:
1)指示所述第一资源为不推荐的资源。例如,第一消息中携带第一资源的时频域信息,和/或一个标识,表明第一资源是不推荐的资源。该例子可以避免第三终端在相同的资源上(即第一资源上)利用不同的波束进行数据发送,导致第一终端无法接收到部分数据的情况,提高通信***性能。
2)指示所述第一终端期望使用所述第一波束进行数据接收的时间段内的资源(可以是第一资源)为不推荐的资源。例如,第一消息中携带资源集合的时频域指示信息,和/或一个标识,表明当前资源集合是不推荐的资源。该例子可以避免第三终端此资源集合上利用不同的波束进行数据发送,导致第一终端无法接收到部分数据的情况,提高通信***性能。
本申请各个实施例中,第一终端期望使用所述第一波束进行数据接收的时间段内的资源可以包括第一资源,还可以包括第一资源之外的资源,还可以包括第一资源中的部分资源,本申请实施例不进行限定。
该例子可以避免第三终端在相同的资源上利用不同的波束进行数据发送,导致无法接收到数据的情况,提高通信***性能。
3)使用所述第一波束进行接收的时间范围。例如,第一终端告知其他终端使用第一波束进行接收的时间范围,期望其他终端或者避开此时间范围,或者在此时间范围使用第一波束或第一波束对应的发送波束进行发送,从而利于第一终端接收数据。
4)所述第一终端接收数据使用的波束的标识。该例子中,第一终端可以指示自己将会采用的波束的标识(如第一波束的标识),其他终端如果可以调整,则采用此波束对应的发送波束进行发送;如果无法调整,则不进行传输。该实施例中,波束的标识可以包括如下至少之一:波束序号,对应的参考信号标识,传输配置指示(Transmission Configuration Indicator,TCI)状态(state),准共址(Quasi-Co-Location,QCL)信息,扰码等。
5)所述第一终端接收数据使用的波束的对应发送波束的标识。
6)所述第一终端的标识(Identifier,ID)。
7)确认信息,所述确认信息指示确认所述第三终端指示的资源或波束。例如,第一消息中携带肯定确认(Acknowledgement,ACK)反馈,确认第三终端可以使用指示的资源或波束进行数据发送的信息,表示第一终端可以接收第三终端的数据。
8)拒绝信息,所述拒绝信息指示拒绝所述第三终端指示的资源或波束。例如,第一消息中携带NACK反馈,拒绝第三终端可以使用指示的资源或波束进行数据发送的信息,表示第一终端不会接收第三终端当前指示的数据。
可选地,在图2所示的实施例的基础上,所述第一消息用于指示如下至少之一:
1)推荐的资源,所述推荐的资源包括所述第一终端期望使用所述第一波束进行数据接收的时间段内的资源。例如,第一消息中携带的是一个资源集合和/或一个标识,表示所指示的资源集合的资源都是第一终端期望使用所述第一波束进行数据接收的时间段内的资源,期望第三终端可以利用这些推荐的资源和第一终端进行通信。
2)所述第一终端用于接收的波束的标识,例如,第一波束的标识。表示第一终端在指示的资源上决定使用第一波束或者第一波束的接收波束进行接收。
3)所述第一终端接收数据使用的波束的对应发送波束的标识。
该实施例中,所述第一消息的发送方式可以为广播,组播或单播。
该实施例中,第一终端利用资源推荐,使得自己可以利用一个波束(即第一波束)同时或连续接收第二终端和第三终端发送的资源,提高资源利用率,提升通信***性能。
该实施例中,所述第一消息可以是所述第一终端在满足第一条件的情况下发送的,所述第一条件包括如下至少之一:
1)所述第二终端和所述第三终端指示的波束准共址。
2)所述第二终端和所述第三终端指示的波束所对应的接收波束准共址。
3)所述第二终端和所述第三终端指示的发送波束或波束对相同。
4)所述第二终端和所述第三终端指示的发送波束所对应的接收波束相同。
5)所述第二终端和所述第三终端指示的波束对所对应的接收波束相同。
6)所述第一终端使用所述第一波束接收所述第三终端指示的发送波束的测量值大于第一阈值。例如,当第一终端用第一波束接收第三终端指示的发送波束的测量值(RSRP)大于第一阈值,即,即使不是最优配对,能够不影响接收的波束也可以使用。
7)所述第三终端指示的资源与所述第二终端指示的资源时域连续或相同。例如,第二终端和第三终端指示的发送波束或波束对不同,第三终端指示的资源与所述第二终端指示的资源时域连续或相同,在第一终端接收第二终端的数据的情况下,当第一终端来不及进行波束切换而接收第三终端资源时或者说优先级较低的资源时,通过第一消息指示第三终端切换波束进行传输,例如,切换到与第二终端相同的波束。
可选地,在本申请各个实施例的基础上,所述方法还包括:所述第一终端在满足第二条件的情况下,使用定向波束接收;其中,所述第二条件包括如下至少之一:
1)所述第一终端配置的资源池使能了基于波束指示的定向波束接收。
2)所述第一终端进行全向接收的RSRP小于第二阈值。
3)所述第一终端接收的数据的优先级高于第三阈值。
可选地,在图2所示的实施例的基础上,所述第一消息用于指示所述第三终端的发送资源与所述第一资源发生冲突。
该实施例中,所述第一消息可以是所述第一终端在满足第三条件的情况下发送的,所述第三条件包括如下至少之一:
1)所述第二终端和所述第三终端指示的波束非准共址。
2)所述第二终端和所述第三终端指示的波束的对应波束非准共址。
3)所述第二终端和所述第三终端指示的发送波束或波束对不同。
4)所述第三终端指示的资源与所述第二终端指示的资源时域连续或相同。
5)所述第三终端发送的数据的优先级低于所述第二终端发送的数据的优先级。
该实施例中,第一终端通过发送冲突指示,期望第三终端进行资源重选等,避免第一终端无法接收对应资源,影响性能,从而提升通信***性能。
可选地,在本申请以上各个实施例的基础上,所述第一消息可以用于触发所述第三终端执行第一动作,所述第一动作包括如下至少之一:
1)资源重选。即,第三终端收到第一消息后,通过资源重选避开在第一资源上发送数据给第一终端。
2)重新选择波束。即,第三终端收到第一消息后,选择第一终端可以进行接收的发送波束发送数据给第一终端。
3)丢包。
可选地,所述第二终端是所述第一终端根据如下至少之一确定的:
1)指示所述第一终端接收的数据的优先级。例如,选择的第二终端为发送给第一终端的数据优先级最高的终端。
2)指示第一终端的接收资源上的测量值RSRP。例如,选择的第二终端为发送给第一终端的RSRP大于阈值的终端。
可选地,在本申请各个实施例提到的数据包括如下至少之一:控制信息,反馈信息,目标数据,参考信号。
可选地,在本申请各个实施例中,所述第一终端确定第一波束后,所述方法还包括:所述第一终端发送第二消息给第二终端,其中,第二消息为确认信息。
可选地,所述第二消息可以承载在如下至少之一上:SCI,MAC CE,
PSFCH,RRC,PSSCH。
可选地,所述第二消息满足如下至少之一:1)所述第二消息的发送方式为广播,组播或单播;2)所述第二消息的发送时刻不晚于时刻T,所述时刻T由如下至少之一确定:所述第一终端切换到所述第一波束的时间,所述第一资源所在时刻,所述第一消息的处理时间。
为详细说明本申请实施例提供的sidelink数据传输方法,以下将结合一个具体的实施例进行说明,该实施例中,接收端协调发送端的行为。
当终端A(即第一终端)确定在某一时刻或某一时段内采用一个定向波束(如第一波束)接收数据后,由于无法使用除此波束之外的波束接收其他终端(如第三终端)的数据,如果其他终端继续采用他们自己选择的波束进行数据发送,就会造成资源的浪费以及***性能的下降。
为了避免此情况,该实施例中,终端可以采取的方法主要有以下几种(对应于前文第一消息的作用):
一、发送消息给其他终端,表明自己在时刻K或时刻K之后的一段时间内不期望进行数据接收。例如,向其他终端发送IUC消息,IUC消息中携带
non-preferred资源,使得其他终端避免在这些资源上发给自己,无论是否接收到beam指示。
二、发送第一beam信息给其他终端,表明自己确定的接收波束是哪一个,这样的话其他终端如果在对应的时刻有数据发送,只可以采用对应的发送波束,如果无法采用对应的波束,就进行资源重选等操作,无论是否接收到beam指示。
三、发送第二beam信息给其他终端,即可以协调其他想要发送的终端,让他们使用终端A指示的波束进行数据发送,从而利于终端A使用同一个波束进行数据接收。例如,如果终端A通过接收beam指示信息发现一个终端选择的波束虽然不是终端A期望的发送波束,但是是相邻或部分重叠的发送波束,则可以指示此终端切换到终端A期望的发送波束上。
四、发送资源推荐信息给相应的终端。例如当终端A发现一个终端指示的beam的对应接收beam是终端A确定的接收beam,但是资源却不在终端A期望使用该接收beam进行数据接收的时间范围内,终端A可以通过发送推荐资源给该终端,使得该终端重新选择发送资源,从而利用终端A的接收。
五、终端A在接收到多个终端的波束指示并按照一定规则确定接收波束后,对于无法接收的终端,发送冲突指示,使得这些终端可以提前通过资源重选等方法调整发送资源。
本申请实施例提供的sidelink数据传输方法,执行主体可以为sidelink数据传输装置。本申请实施例中以sidelink数据传输装置执行sidelink数据传输方法为例,说明本申请实施例提供的sidelink数据传输装置。
图3是根据本申请实施例的sidelink数据传输装置的结构示意图,该装置可以应用于第一终端。如图3所示,装置300包括如下模块。
处理模块302,用于确定第一波束。
发送模块304,用于发送第一消息给第三终端;其中,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。
本申请实施例提供的sidelink数据传输装置,处理模块确定第一波束;发送模块发送第一消息给第三终端,所述第一波束用于在第一资源进行通信,
所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。本申请实施例有利于第一终端使用波束进行的sidelink数据传输,提升通信***性能。
可选地,作为一个实施例,所述处理模块302,用于根据如下至少之一确定所述第一波束:1)所述装置期望利用一个波束进行数据接收的时间T;2)数据的优先级;3)RSRP;4)每个波束接收数据的数据量;5)切换到目标波束所需的时长是否满足处理时长;6)数据的类型。
可选地,作为一个实施例,所述第一波束为全向波束。
可选地,作为一个实施例,所述第一消息满足如下至少之一:1)所述第一消息的发送方式为广播,组播或单播;2)通过第二波束指示,所述第二波束和所述第一波束不同;3)所述第一消息承载在IUC上;4)所述第一消息的发送时刻不晚于时刻K,所述时刻K由如下至少之一确定:所述装置切换到所述第一波束的时间,所述第一资源所在时刻,所述第一消息的处理时间,所述第三终端指示的资源所在时刻,资源重选的时间。例如,第一终端需要发送第一消息通知第三终端无法执行接收,这就要求发送第一消息的时间不能太晚,以至于第三终端来不及资源重选等造成丢包或者无效发送等问题。因此,发送第一消息的时间需要早于第三终端指示的资源所在时刻,同时考虑到预留出第一消息的处理时间,资源重选的时间等。如果均是指示的第一资源,那么就需要早于第一资源所在时刻,同时加上第一消息的处理时间和/或资源重选时间等。
可选地,作为一个实施例,所述第一消息包括如下至少一项:1)指示所述第一资源为不推荐的资源;2)指示所述装置期望使用所述第一波束进行数据接收的时间段内的资源为不推荐的资源;3)使用所述第一波束进行接收的时间范围;4)所述装置接收数据使用的波束的标识;5)所述装置接收数据使用的波束的对应发送波束的标识;6)所述装置的标识ID;7)确认信息,所述确认信息指示确认所述第三终端指示的资源或波束;8)拒绝信息,所述拒绝信息指示拒绝所述第三终端指示的资源或波束。
可选地,作为一个实施例,所述第一消息用于指示如下至少之一:1)推荐的资源,所述推荐的资源包括所述装置期望使用所述第一波束进行数据接
收的时间段内的资源;2)所述装置用于接收的波束的标识;3)所述装置接收数据使用的波束的对应发送波束的标识。
可选地,作为一个实施例,所述第一消息是在满足第一条件的情况下发送的,所述第一条件包括如下至少之一:1)所述第二终端和所述第三终端指示的波束准共址;2)所述第二终端和所述第三终端指示的波束所对应的接收波束准共址;3)所述第二终端和所述第三终端指示的发送波束或波束对相同;4)所述第二终端和所述第三终端指示的发送波束所对应的接收波束相同;5)所述第二终端和所述第三终端指示的波束对所对应的接收波束相同;6)所述装置使用所述第一波束接收所述第三终端指示的发送波束的测量值大于第一阈值;7)所述第三终端指示的资源与所述第二终端指示的资源时域连续或相同。
可选地,作为一个实施例,所述装置还包括接收模块,用于在满足第二条件的情况下,使用定向波束接收;其中,所述第二条件包括如下至少之一:1)所述装置配置的资源池使能了基于波束指示的定向波束接收;2)所述装置进行全向接收的RSRP小于第二阈值;3)所述装置接收的数据的优先级高于第三阈值。
可选地,作为一个实施例,所述第一消息用于指示所述第三终端的发送资源与所述第一资源发生冲突。例如,第一终端利用终端协作机制或者HARQ反馈等发送第一消息告知第三终端指示的发送资源是与第一终端确定接收第二终端的资源冲突的,期望第三终端进行资源重选等操作,避免进行无效发送或者造成不必要的干扰。
可选地,作为一个实施例,所述第一消息是在满足第三条件的情况下发送的,所述第三条件包括如下至少之一:1)所述第二终端和所述第三终端指示的波束非准共址;2)所述第二终端和所述第三终端指示的波束的对应波束非准共址;3)所述第二终端和所述第三终端指示的发送波束或波束对不同;4)所述第三终端指示的资源与所述第二终端指示的资源时域连续或相同;5)所述第三终端发送的数据的优先级低于所述第二终端发送的数据的优先级。
可选地,作为一个实施例,所述第一消息用于触发所述第三终端执行第一动作,所述第一动作包括如下至少之一:1)资源重选;2)重新选择波束;3)丢包。
可选地,作为一个实施例,第一消息承载在如下至少之一上:SCI,MAC CE,PSFCH,RRC,PSSCH。
可选地,作为一个实施例,所述第二终端是根据如下至少之一确定的:1)指示所述装置接收的数据的优先级;2)指示装置的接收资源上的测量值RSRP。
可选地,作为一个实施例,所述数据包括如下至少之一:控制信息,反馈信息,目标数据,参考信号。
可选地,作为一个实施例,所述处理模块302,用于确定在所述第一资源上使用所述第一波束进行通信。
可选地,作为一个实施例,所述发送模块304,还用于发送第二消息给第二终端,其中,第二消息为确认信息。
可选地,作为一个实施例,所述第二消息可以承载在如下至少之一上:SCI,MAC CE,PSFCH,RRC,PSSCH。
可选地,作为一个实施例,所述第二消息满足如下至少之一:1)所述第二消息的发送方式为广播,组播或单播;2)所述第二消息的发送时刻不晚于时刻T,所述时刻T由如下至少之一确定:所述装置切换到所述第一波束的时间,所述第一资源所在时刻,所述第一消息的处理时间。
根据本申请实施例的装置300可以参照对应本申请实施例的方法200的流程,并且,该装置300中的各个单元/模块和上述其他操作和/或功能分别为了实现方法200中的相应流程,并且能够达到相同或等同的技术效果,为了简洁,在此不再赘述。
本申请实施例中的sidelink数据传输装置可以是电子设备,例如具有操作***的电子设备,也可以是电子设备中的部件,例如集成电路或芯片。该电子设备可以是终端,也可以为除终端之外的其他设备。示例性的,终端可以包括但不限于上述所列举的终端11的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。
本申请实施例提供的sidelink数据传输装置能够实现图2的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,如图4所示,本申请实施例还提供一种通信设备400,包括处理器401和存储器402,存储器402上存储有可在所述处理器401上运行的程序或指令,例如,该通信设备400为终端时,该程序或指令被处理器401
执行时实现上述sidelink数据传输方法实施例的各个步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种终端,包括处理器和通信接口,所述处理器用于确定第一波束,所述通信接口用于发送第一消息给第三终端;其中,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。该终端实施例与上述终端侧方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中,且能达到相同的技术效果。具体地,图5为实现本申请实施例的一种终端的硬件结构示意图。
该终端500包括但不限于:射频单元501、网络模块502、音频输出单元503、输入单元504、传感器505、显示单元506、用户输入单元507、接口单元508、存储器509以及处理器510等中的至少部分部件。
本领域技术人员可以理解,终端500还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理***与处理器510逻辑相连,从而通过电源管理***实现管理充电、放电、以及功耗管理等功能。图5中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元504可以包括图形处理器(Graphics Processing Unit,GPU)5041和麦克风5042,图形处理器5041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元506可包括显示面板5061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板5061。用户输入单元507包括触控面板5071以及其他输入设备5072中的至少一种。触控面板5071,也称为触摸屏。触控面板5071可包括触摸检测装置和触摸控制器两个部分。其他输入设备5072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元501接收来自网络侧设备的下行数据后,可以传输给处理器510进行处理;另外,射频单元501可以向网络侧设备发送
上行数据。通常,射频单元501包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器509可用于存储软件程序或指令以及各种数据。存储器509可主要包括存储程序或指令的第一存储区和存储数据的第二存储区,其中,第一存储区可存储操作***、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器509可以包括易失性存储器或非易失性存储器,或者,存储器509可以包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器
(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例中的存储器509包括但不限于这些和任意其它适合类型的存储器。
处理器510可包括一个或多个处理单元;可选的,处理器510集成应用处理器和调制解调处理器,其中,应用处理器主要处理涉及操作***、用户界面和应用程序等的操作,调制解调处理器主要处理无线通信信号,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器510中。
其中,射频单元501,可以用于发送第一消息给第三终端。
处理器510,可以用于确定第一波束;其中,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。
本申请实施例提供的终端可以执行如下至少之一:确定第一波束;发送第一消息给第三终端,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的
资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。本申请实施例有利于第一终端使用波束进行的sidelink数据传输,提升通信***性能本申请实施例提供的终端500还可以实现上述sidelink数据传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述sidelink数据传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述sidelink数据传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为***级芯片,***芯片,芯片***或片上***芯片等。
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现上述sidelink数据传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供了一种sidelink数据传输***,包括:终端及网络侧设备,所述终端可用于执行如上所述的sidelink数据传输方法的步骤。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例
如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。
Claims (36)
- 一种旁链路sidelink数据传输方法,包括:第一终端执行如下至少之一:确定第一波束;发送第一消息给第三终端;其中,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。
- 根据权利要求1所述的方法,其中,所述第一终端确定第一波束包括:所述第一终端根据如下至少之一确定所述第一波束:所述第一终端期望利用一个波束进行数据接收的时间T;数据的优先级;参考信号接收功率RSRP;每个波束接收数据的数据量;切换到目标波束所需的时长是否满足处理时长;数据的类型。
- 根据权利要求1所述的方法,其中,所述第一波束为全向波束。
- 根据权利要求1所述的方法,其中,所述第一消息满足如下至少之一:所述第一消息的发送方式为广播,组播或单播;通过第二波束指示,所述第二波束和所述第一波束不同;所述第一消息承载在终端协作信息IUC上;所述第一消息的发送时刻不晚于时刻K,所述时刻K由如下至少之一确定:所述第一终端切换到所述第一波束的时间,所述第一资源所在时刻,所述第一消息的处理时间,所述第三终端指示的资源所在时刻,资源重选的时间。
- 根据权利要求1所述的方法,其中,所述第一消息包括如下至少一项:指示所述第一资源为不推荐的资源;指示所述第一终端期望使用所述第一波束进行数据接收的时间段内的资源为不推荐的资源;使用所述第一波束进行接收的时间范围;所述第一终端接收数据使用的波束的标识;所述第一终端接收数据使用的波束的对应发送波束的标识;所述第一终端的标识ID;确认信息,所述确认信息指示确认所述第三终端指示的资源或波束;拒绝信息,所述拒绝信息指示拒绝所述第三终端指示的资源或波束。
- 根据权利要求1所述的方法,其中,所述第一消息用于指示如下至少之一:推荐的资源,所述推荐的资源包括所述第一终端期望使用所述第一波束进行数据接收的时间段内的资源;所述第一终端用于接收的波束的标识;所述第一终端接收数据使用的波束的对应发送波束的标识。
- 根据权利要求6所述的方法,其中,所述第一消息是所述第一终端在满足第一条件的情况下发送的,所述第一条件包括如下至少之一:所述第二终端和所述第三终端指示的波束准共址;所述第二终端和所述第三终端指示的波束所对应的接收波束准共址;所述第二终端和所述第三终端指示的发送波束或波束对相同;所述第二终端和所述第三终端指示的发送波束所对应的接收波束相同;所述第二终端和所述第三终端指示的波束对所对应的接收波束相同;所述第一终端使用所述第一波束接收所述第三终端指示的发送波束的测量值大于第一阈值;所述第三终端指示的资源与所述第二终端指示的资源时域连续或相同。
- 根据权利要求1所述的方法,其中,所述方法还包括:所述第一终端在满足第二条件的情况下,使用定向波束接收;其中,所述第二条件包括如下至少之一:所述第一终端配置的资源池使能了基于波束指示的定向波束接收;所述第一终端进行全向接收的RSRP小于第二阈值;所述第一终端接收的数据的优先级高于第三阈值。
- 根据权利要求1所述的方法,其中,所述第一消息用于指示所述第三终端的发送资源与所述第一资源发生冲突。
- 根据权利要求9所述的方法,其中,所述第一消息是所述第一终端在满足第三条件的情况下发送的,所述第三条件包括如下至少之一:所述第二终端和所述第三终端指示的波束非准共址;所述第二终端和所述第三终端指示的波束的对应波束非准共址;所述第二终端和所述第三终端指示的发送波束或波束对不同;所述第三终端指示的资源与所述第二终端指示的资源时域连续或相同;所述第三终端发送的数据的优先级低于所述第二终端发送的数据的优先级。
- 根据权利要求1所述的方法,其中,所述第一消息用于触发所述第三终端执行第一动作,所述第一动作包括如下至少之一:资源重选;重新选择波束;丢包。
- 根据权利要求1所述的方法,其中,第一消息承载在如下至少之一上:旁链路控制信息SCI,媒体接入控制控制单元MAC CE,物理旁链路反馈信道PSFCH,无线资源控制信息RRC,物理旁链路数据信道PSSCH。
- 根据权利要求1所述的方法,其中,所述第二终端是所述第一终端根据如下至少之一确定的:指示所述第一终端接收的数据的优先级;指示第一终端的接收资源上的测量值RSRP。
- 根据权利要求1,2,5,6,8,10或13所述的方法,其中,所述数据包括如下至少之一:控制信息,反馈信息,目标数据,参考信号。
- 根据权利要求1所述的方法,其中,所述第一终端确定第一波束包括:所述第一终端确定在所述第一资源上使用所述第一波束进行通信。
- 根据权利要求1所述的方法,其中,所述第一终端确定第一波束后,所述方法还包括:所述第一终端发送第二消息给第二终端,其中,第二消息为确认信息。
- 根据权利要求16所述的方法,其中,第二消息承载在如下至少之一上:旁链路控制信息SCI,媒体接入控制控制单元MAC CE,物理旁链路反馈信道PSFCH,无线资源控制信息RRC,物理旁链路数据信道PSSCH。
- 根据权权利要求16所述的方法,其中,所述第二消息满足如下至少之一:所述第二消息的发送方式为广播,组播或单播;所述第二消息的发送时刻不晚于时刻T,所述时刻T由如下至少之一确定:所述第一终端切换到所述第一波束的时间,所述第一资源所在时刻,所述第一消息的处理时间。
- 一种sidelink数据传输装置,包括如下至少之一:处理模块,用于确定第一波束;发送模块,用于发送第一消息给第三终端;其中,所述第一波束用于在第一资源进行通信,所述第一资源为第二终端的发送资源;所述第一消息用于指示如下至少之一:不推荐的资源;推荐的资源,资源发生冲突;波束信息;确认所述第三终端指示的资源或波束,拒绝所述第三终端指示的资源或波束。
- 根据权利要求19所述的装置,其中,所述处理模块,用于根据如下至少之一确定所述第一波束:所述装置期望利用一个波束进行数据接收的时间T;数据的优先级;参考信号接收功率RSRP;每个波束接收数据的数据量;切换到目标波束所需的时长是否满足处理时长;数据的类型。
- 根据权利要求19所述的装置,其中,所述第一波束为全向波束。
- 根据权利要求19所述的装置,其中,所述第一消息满足如下至少之一:所述第一消息的发送方式为广播,组播或单播;通过第二波束指示,所述第二波束和所述第一波束不同;所述第一消息承载在IUC上;所述第一消息的发送时刻不晚于时刻K,所述时刻K由如下至少之一确定:所述装置切换到所述第一波束的时间,所述第一资源所在时刻,所述第一消息的处理时间,所述第三终端指示的资源所在时刻,资源重选的时间。
- 根据权利要求19所述的装置,其中,所述第一消息包括如下至少一项:指示所述第一资源为不推荐的资源;指示所述装置期望使用所述第一波束进行数据接收的时间段内的资源为 不推荐的资源;使用所述第一波束进行接收的时间范围;所述装置接收数据使用的波束的标识;所述装置接收数据使用的波束的对应发送波束的标识;所述装置的标识ID;确认信息,所述确认信息指示确认所述第三终端指示的资源或波束;拒绝信息,所述拒绝信息指示拒绝所述第三终端指示的资源或波束。
- 根据权利要求19所述的装置,其中,所述第一消息用于指示如下至少之一:推荐的资源,所述推荐的资源包括所述装置期望使用所述第一波束进行数据接收的时间段内的资源;所述装置用于接收的波束的标识;所述装置接收数据使用的波束的对应发送波束的标识。
- 根据权利要求24所述的装置,其中,所述第一消息是在满足第一条件的情况下发送的,所述第一条件包括如下至少之一:所述第二终端和所述第三终端指示的波束准共址;所述第二终端和所述第三终端指示的波束所对应的接收波束准共址;所述第二终端和所述第三终端指示的发送波束或波束对相同;所述第二终端和所述第三终端指示的发送波束所对应的接收波束相同;所述第二终端和所述第三终端指示的波束对所对应的接收波束相同;所述装置使用所述第一波束接收所述第三终端指示的发送波束的测量值大于第一阈值;所述第三终端指示的资源与所述第二终端指示的资源时域连续或相同。
- 根据权利要求19所述的装置,其中,所述装置还包括接收模块,用于在满足第二条件的情况下,使用定向波束接收;其中,所述第二条件包括如下至少之一:所述装置配置的资源池使能了基于波束指示的定向波束接收;所述装置进行全向接收的RSRP小于第二阈值;所述装置接收的数据的优先级高于第三阈值。
- 根据权利要求19所述的装置,其中,所述第一消息用于指示所述第三终端的发送资源与所述第一资源发生冲突。
- 根据权利要求27所述的装置,其中,所述第一消息是在满足第三条件的情况下发送的,所述第三条件包括如下至少之一:所述第二终端和所述第三终端指示的波束非准共址;所述第二终端和所述第三终端指示的波束的对应波束非准共址;所述第二终端和所述第三终端指示的发送波束或波束对不同;所述第三终端指示的资源与所述第二终端指示的资源时域连续或相同;所述第三终端发送的数据的优先级低于所述第二终端发送的数据的优先级。
- 根据权利要求19所述的装置,其中,所述第一消息用于触发所述第三终端执行第一动作,所述第一动作包括如下至少之一:资源重选;重新选择波束;丢包。
- 根据权利要求19所述的装置,其中,第一消息承载在如下至少之一上:旁链路控制信息SCI,媒体接入控制控制单元MAC CE,物理旁链路反馈信道PSFCH,无线资源控制信息RRC,物理旁链路数据信道PSSCH。
- 根据权利要求19所述的装置,其中,所述第二终端是根据如下至少之一确定的:指示所述装置接收的数据的优先级;指示装置的接收资源上的测量值RSRP。
- 根据权利要求19,20,23,24,26,29或31所述的装置,其中,所述数据包括如下至少之一:控制信息,反馈信息,目标数据,参考信号。
- 根据权利要求19所述的装置,其中,所述处理模块,用于确定在所述第一资源上使用所述第一波束进行通信。
- 根据权利要求19所述的装置,其中,所述发送模块,还用于发送第二消息给第二终端,其中,第二消息为确认信息。
- 一种终端,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至18任一项所述的方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至18任一项所述的方法的步骤。
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CN113905392A (zh) * | 2020-06-22 | 2022-01-07 | 华为技术有限公司 | 一种共用波束测量结果的方法及装置 |
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