WO2023036332A1 - 资源预留方法、装置及终端 - Google Patents
资源预留方法、装置及终端 Download PDFInfo
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- WO2023036332A1 WO2023036332A1 PCT/CN2022/118416 CN2022118416W WO2023036332A1 WO 2023036332 A1 WO2023036332 A1 WO 2023036332A1 CN 2022118416 W CN2022118416 W CN 2022118416W WO 2023036332 A1 WO2023036332 A1 WO 2023036332A1
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- 238000004590 computer program Methods 0.000 claims description 6
- 238000013468 resource allocation Methods 0.000 claims description 5
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Definitions
- the present application belongs to the technical field of communication, and specifically relates to a resource reservation method, device and terminal.
- the transmitting terminal In the fifth generation ( 5th Generation, 5G) new air interface (New Radio, NR) direct link (SideLink, SL, which can also be translated as side link or secondary link), the transmitting terminal (TX UE) will The allocated resources are reserved or indicated (reservation is divided into periodic reservation and aperiodic reservation), and the reserved resources are used for subsequent physical sidelink control channels (Pysical Sidelink Control Channel, PSCCH) or physical Used for sidelink shared channel (Pysical Sidelink Share Channel, PSSCH) transmission.
- PSCCH Physical Sidelink Control Channel
- PSSCH Physical Sidelink Share Channel
- Aperiodic reservation/indication can be realized through the time resource assignment (Time resource assignment) field in the sidelink control information (Sidelink Control Information, SCI) (indicating at least 1 ⁇ 32 slot resources), and the reserved resources can at least be used as Transmission of the same transport block (Transport Block, TB).
- SCI Sidelink Control Information
- Periodic reservation/indication can be realized through the periodical reservation (Resource reservation period) field in SCI, and the periodic resources reserved in the current period can be used for the transmission of the next TB.
- a certain frequency domain resource appears periodically, which may be referred to as a periodic resource of the resource.
- the terminal reserves transmission resources before sending the PSCCH or PSSCH.
- the sending terminal selects the transmission resources, it monitors the transmission resource reservation signaling of the adjacent terminals to avoid the transmission resources reserved by the adjacent terminals and reduce the mutual interference between the terminals.
- SideLink terminals can use directional beams for transmission when transmitting in the FR2 bandwidth.
- the resource selection based on transmission resource reservation signaling will cause problems such as hidden nodes or exposed nodes.
- problems such as hidden nodes or exposed nodes.
- the problem of hidden nodes will become more frequent, and even negatively affect the transmission between near-field terminals.
- Embodiments of the present application provide a resource reservation method, device, and terminal, which can solve the problem of hidden nodes or exposed nodes caused by transmission resource reservation signaling.
- a resource reservation method including:
- the receiving terminal determines the receiving resources to be reserved
- the receiving terminal sends reception resource reservation signaling, where the reception resource reservation signaling is used to reserve at least one reception resource in the reception resources to be reserved.
- a resource reservation device which is applied to a receiving terminal, including:
- a first determining module configured to determine the receiving resources to be reserved
- the first sending module is configured to send reception resource reservation signaling, where the reception resource reservation signaling is used to reserve at least one reception resource in the reception resources to be reserved.
- a terminal includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor.
- the program or instruction is executed by the processor The steps of the method described in the first aspect are realized.
- a terminal including a processor and a communication interface, wherein the processor is used to determine receiving resources to be reserved, the communication interface is used to send receiving resource reservation signaling, and the receiving resource reservation The signaling is used to reserve at least one reception resource in the to-be-reserved reception resources.
- a readable storage medium where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.
- a chip in an eighth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect .
- a computer program/program product is provided, the computer program/program product is stored in a non-transitory storage medium, and the computer program/program product is executed by at least one processor to implement the first The steps of the method described in the aspect.
- a communication device configured to execute the method described in the first aspect.
- the receiving terminal prevents interference from adjacent terminals by reserving receiving resources, and the receiving terminal reserves receiving resources by sending receiving resource reservation signaling, and the adjacent terminals can perform receiving resource reservation signaling Monitoring can avoid interference to the receiving terminal, thereby effectively alleviating the problem of hidden nodes or exposed nodes.
- FIG. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable
- FIG. 2 shows a flow chart of the steps of the resource reservation method provided by the embodiment of the present application
- FIG. 3 shows a schematic structural diagram of a resource reservation device provided by an embodiment of the present application
- FIG. 4 shows one of the structural schematic diagrams of the terminal provided by the embodiment of the present application.
- FIG. 5 shows the second structural schematic diagram of the terminal provided by the embodiment of the present application.
- first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
- “and/or” in the specification and claims means at least one of the connected objects, and the character “/” generally means that the related objects before and after are an "or” relationship.
- LTE Long Term Evolution
- LTE-Advanced LTE-Advanced
- LTE-A Long Term Evolution-Advanced
- 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
- system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
- NR New Radio
- the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.
- 6G 6th Generation
- Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
- the wireless communication system includes a terminal 11 and a network side device 12 .
- the terminal 11 can 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, a super mobile personal computer (Ultra-Mobile Personal Computer, UMPC), Mobile Internet Device (Mobile Internet Device, MID), Augmented Reality (Augmented Reality, AR)/Virtual Reality (Virtual Reality, VR) equipment, robot, wearable device (Wearable Device) , vehicle equipment (Vehicle UE, VUE), pedestrian terminal (Pedestrian UE, PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), and other terminal-side devices, wearable devices include : Smart watches, smart bracelets, smart headphones
- the network side device 12 may be a base station or a core network, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Network (WLAN) Area Networks (WLAN) access point, Wireless Fidelity (WiFi) node, Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, all
- BTS Basic Service Set
- ESS Extended Service Set
- Node B Evolved Node B (eNB)
- Home Node B Home Evolved Node B
- Wireless Local Area Network (WLAN) Area Networks (WLAN) access point Wireless Fidelity (WiFi
- this embodiment of the present application provides a resource reservation method, including:
- Step 201 the receiving terminal determines the receiving resources to be reserved
- Step 202 the receiving terminal sends receiving resource reservation signaling, where the receiving resource reservation signaling is used to reserve at least one receiving resource in the receiving resources to be reserved.
- the receiving terminal uses the receiving beam to send the receiving resource reservation signaling, and the adjacent terminal uses the sending beam to monitor. If a nearby terminal can detect that a certain receiving terminal has reserved a certain or some receiving resources, then the nearby terminal cannot use the transmit beam to transmit on the receiving resource reserved by the receiving terminal to avoid interference to the receiving terminal .
- step 201 includes:
- the receiving terminal acquires the transmission resource of the sending terminal, and determines that the transmission resource of the sending terminal is the receiving resource to be reserved.
- the receiving terminal obtains the transmission resources of the sending terminal, including:
- the receiving terminal demodulates the resource reservation information of the sending terminal, and acquires the transmission resource of the sending terminal;
- the receiving terminal receives the first signaling sent by the sending terminal, where the first signaling is used to indicate the transmission resource of the sending terminal.
- the first signaling is radio resource control (Radio Resource Control, RRC) signaling, or medium access control layer control element (Medium Access Control Control Element, MAC CE), or direct link control information SCI (such as the second Level SCI (2 nd stage SCI), or third level SCI (3 rd stage SCI)).
- step 201 includes:
- the receiving terminal selects the receiving resource to be reserved according to the resource selection rule; that is, the receiving terminal independently selects the receiving resource.
- step 201 includes:
- the receiving terminal acquires the to-be-reserved receiving resource scheduled by the control node; for example, the control node is a network side device or a head node user equipment (User Equipment, UE) (leading-UE).
- the control node is a network side device or a head node user equipment (User Equipment, UE) (leading-UE).
- UE User Equipment
- step 202 includes:
- the receiving terminal sends the receiving resource reservation signaling in the first time unit; in the embodiment of the present application, the receiving terminal should send the corresponding receiving resource reservation signaling as early as possible, so as to avoid the above-mentioned to-be-reserved receiving Resources are occupied by other terminals.
- the first time unit includes any of the following:
- the resource notification signaling is used to notify the receiving terminal of the transmission resource corresponding to the sending terminal;
- the transmission resource reservation signaling is sent by the sending terminal to reserve corresponding transmission resources ;
- the receiving terminal receives the resource scheduling signaling of the control node within the T5th time unit or within the T6 time unit; for example, the control node is a network side device or a leading node UE (leading-UE);
- T7th time unit or T8 time unit after the receiving terminal triggers the selection of receiving resources
- T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11 and T12 are positive integers.
- T1 , T2 , T3 , T4 , T5 , T6 , T7 , T8 , T9 , T10 , T11 and T12 may be values stipulated in the protocol or configured or preconfigured by the control node, which are not specifically limited here.
- the receiving end sends M reception resource reservation signaling to reserve N reception resources (M ⁇ N), and the above "previous reserved resource” is reserved for the previous reception resource reservation signaling
- M ⁇ N the above "previous reserved resource” is reserved for the previous reception resource reservation signaling
- the last resource of , the sending time of receiving the resource reservation signaling this time is "within the T11th time unit or T12 time unit after the previous reserved resource”.
- receiving the resource reservation signaling should reserve transmission resources as comprehensively as possible, and the corresponding step 202 includes:
- the receiving terminal sends a receiving resource reservation signaling, and the receiving resource reservation signaling is used to reserve all receiving resources to be reserved; that is, the receiving resource reservation signaling reserves all receiving resources to be reserved at one time.
- step 202 includes:
- the receiving terminal sends at least one receiving resource reservation signaling, where the receiving resource reservation signaling is used to sequentially and continuously reserve the to-be-reserved receiving resources according to a predefined rule.
- receiving resource reservation signaling may reserve P consecutive selected resources (that is, the receiving resources to be reserved); if the receiving terminal sends multiple receiving resource reservation signaling, the resource reservation signaling received this time The first selected resource reserved is not later than the last selected resource reserved by the last received resource reservation signaling.
- step 202 includes:
- the receiving terminal Before each receiving resource to be reserved, the receiving terminal sends receiving resource reservation signaling corresponding to each receiving resource to be reserved, where the receiving resource reservation signaling is used to reserve the corresponding receiving resource to be reserved, Alternatively, the reception resource reservation signaling is used to reserve a corresponding reception resource to be reserved and reception resources to be reserved after the reception resource to be reserved.
- the receiving terminal determines A receiving resources to be reserved, and the receiving terminal sends A receiving resource reservation signaling (one receiving resource reservation signaling is sent before the corresponding receiving resource to be reserved). If the reception resource 1 to be reserved corresponds to the reception resource reservation signaling 1, the reception resource reservation signaling 1 is used to reserve the reception resource 1 to be reserved, or the reception resource reservation signaling 1 is used to reserve The receiving resource 1 to be reserved and the receiving resource 2 to be reserved after the receiving resource 1 to be reserved.
- receiving the resource reservation signaling does not reserve too many resources, so as to avoid resource waste caused by unused reserved resources.
- the receiving resource reserved by the receiving resource reservation signaling is consistent with the transmission resource reserved by the sending terminal.
- the receiving resource reservation signaling sent by the receiving terminal only reserves the transmission resources already reserved by the sending terminal; or, the receiving resource reservation signaling sent by the receiving terminal only reserves the next transmission resource reservation signaling H.
- step 202 includes:
- the receiving terminal sends at least one receiving resource reservation signaling. For example, for the transmission resource of TB, the receiving terminal may reserve the receiving resource multiple times.
- the number of receiving resources that can be reserved by one receiving resource reservation signaling is determined by pre-definition or configuration or pre-configuration;
- the maximum number and/or the minimum number of reception resources that can be reserved by one reception resource reservation signaling is determined by pre-definition or configuration or pre-configuration.
- the receiving terminal sends at least one receiving resource reservation signaling, including:
- the receiving terminal For a transmission block TB transmission, the receiving terminal sends a first reception resource reservation signaling
- the receiving terminal After all the receiving resources reserved by the first receiving resource reservation signaling are used, the receiving terminal sends the second receiving resource reservation signaling; and/or, after the number of remaining reserved resources If it is smaller than the first threshold, the receiving terminal sends third receiving resource reservation signaling.
- receiving resources are reserved multiple times, new receiving resources are reserved each time only after the last reserved receiving resources are used up, or only after the remaining reserved receiving resources less than the first threshold.
- the method also includes:
- the receiving terminal determines the number of receiving resources reserved by a receiving resource reservation signaling or the number of receiving resources reserved for this TB transmission according to the degree of resource congestion; waste of resources.
- the congestion degree may be determined according to a channel busy ratio (Channel Busy Ratio, CBR).
- CBR Channel Busy Ratio
- the amount of receiving resources reserved by one receiving resource reservation signaling or the amount of receiving resources reserved for this TB transmission has a negative or non-positive relationship with the resource congestion degree. That is, the higher the degree of congestion, the smaller the number of receiving resources reserved by one receiving resource reservation signaling or the smaller the number of receiving resources reserved for this TB transmission.
- the method further includes:
- the receiving terminal determines the number of receiving resources reserved by a receiving resource reservation signaling or the receiving resources reserved for this TB transmission according to the priority of the current TB or the quality of service (Quality of Service, QoS) of the current TB quantity. In order to reduce the resources reserved for low-priority TB transmission and minimize the waste of resources caused by excessive reservations.
- QoS Quality of Service
- the number of receiving resources reserved by a receiving resource reservation signaling or the number of receiving resources reserved for this TB transmission has a positive or non-negative relationship with the priority of the TB. That is, the higher the priority, the larger the number of receiving resources reserved by one receiving resource reservation signaling or the larger the number of receiving resources reserved for this TB transmission.
- the transmission resource for receiving the resource reservation signaling is time-division multiplexed with the receiving resource reserved for the resource reservation signaling, so as to avoid half-duplex problems.
- the time domain resource where the selected resource (ie, the receiving resource to be reserved) is located is excluded when receiving the transmission resource selection of the resource reservation signaling.
- the overhead of receiving resource reservation signaling should be reduced as much as possible, then receiving resource reservation signaling meets at least one of the following conditions:
- the maximum value of the number of received resource reservation signaling corresponding to TB transmission is determined by pre-definition or configuration or pre-configuration;
- the maximum value of the number sent by the received resource reservation signaling is related to the number of retransmission resources selected by the TB; for example, the maximum value is less than or equal to the number of retransmission resources selected/N, where N is the protocol agreement or configuration or pre-set configured value;
- the receiving resources reserved by different receiving resource reservation signaling are different; in other words, the receiving resource reservation The first resource reserved by the reserved signaling is after the last resource reserved by the last received resource reservation signaling;
- the interval between the first receiving resource reserved by the receiving resource reservation signaling and the receiving resource reservation signaling is less than or equal to a second threshold
- the interval between the last received resource reserved by the received resource reservation signaling and the received resource reservation signaling is less than or equal to a third threshold
- the interval between the last received resource reserved by the received resource reservation signaling and the first reserved received resource is less than or equal to a fourth threshold
- the received resource reservation signaling is sent using the minimum resource allocation granularity, for example, the minimum resource allocation granularity is 1 subchannel (subchannel) or 1 time slot (slot);
- the receiving resource reservation signaling can only use a single retransmission.
- step 202 includes:
- the receiving terminal sends and receives resource reservation signaling in a first manner, where the first manner includes at least one of the following:
- the reception resource reservation signaling carried on the first channel implicitly indicates that the PSCCH or PSSCH associated with the first channel is reserved as a reception resource; or , indicating the reserved PSCCH or PSSCH indicated by the received resource reservation signaling carried on the first channel.
- using the PSCCH or PSSCH to carry the received resource reservation signaling includes:
- the receiving resource reservation signaling is transmitted by using a first stage SCI ( 1st stage SCI). For example, multiplexing the resource indication field in the 1st stage SCI to reserve receiving resources, at least the second and/or third resources indicated in the SCI are the receiving resources reserved for receiving resources; another example, 1st stage SCI
- the fixed state of the reserved bits (reserve bits) in indicates that the signaling is used to reserve resources for the receiving terminal;
- the resource indication field in the 1st stage SCI is multiplexed to receive the resource reservation indication
- periodic resource indication periodic domain
- aperiodic resource indication time domain resource assignment (Time Domain Resource Assignment, TDRA) domain or frequency domain resource assignment (Frequency Domain Resource Assignment, FDRA) domain
- time domain resource assignment time Domain Resource Assignment
- FDRA frequency domain resource assignment
- the time-domain/frequency-domain starting position of the first resource indicated by the TDRA field or the FDRA field needs to be additionally indicated.
- RRC or MAC CE is used to transmit the received resource reservation signaling
- the Logical Channel Identity (LCID) of MAC CE is agreed/configured/pre-configured by the protocol; the QoS requirements for the corresponding information transmission are agreed/configured/pre-configured by the protocol, such as priority (priority) or delay ( latency) or reliability (reliability).
- LCID Logical Channel Identity
- the QoS requirements for the corresponding information transmission are agreed/configured/pre-configured by the protocol, such as priority (priority) or delay ( latency) or reliability (reliability).
- time division multiplexing (Time Division Multiplexing, TDM) is performed on the first channel and the associated PSCCH or PSSCH, so as to avoid problems such as half duplexing.
- TDM Time Division Multiplexing
- the first channel and the associated PSCCH or PSSCH are in different resource pools, so as to reduce influences such as terminal channel decoding.
- sending the time-frequency resource for receiving the resource reservation signaling includes:
- the time-frequency resource selected by the receiving terminal that is, the receiving terminal independently selects the transmission resource for receiving the resource reservation signaling;
- the time-frequency resource indicated by the sending terminal or the control node that is, the sending terminal or the control node selects the transmission resource for receiving the resource reservation signaling, and notifies the receiving terminal; wherein the control node is a base station or leading-UE.
- sending the airspace resource for receiving the resource reservation signaling includes any of the following:
- the receiving panel of the receiving terminal The receiving panel of the receiving terminal
- An antenna panel capable of covering the receiving panel of the receiving terminal.
- the receiving beam of the receiving terminal is: receiving the corresponding receiving beam on the reserved receiving resources.
- the receiving terminal uses preset beams (such as omnidirectional beams)/preset panels (such as all panels) to reserve resources.
- preset beams such as omnidirectional beams
- preset panels such as all panels
- the behavior of the receiving terminal autonomously selecting receiving resources includes:
- the receiving terminal only performs one resource selection for one TB transmission.
- the maximum number of resources for one TB transmission is stipulated/configured/preconfigured by the protocol.
- the receiving terminal may perform multiple resource selections for one TB transmission. That is, according to the actual demodulation situation of the TB, an appropriate number of transmission resources is selected to ensure transmission reliability and resource efficiency.
- the maximum number of resources for one TB transmission is stipulated/configured/preconfigured by the protocol.
- the maximum number of resources for each resource selection is stipulated/configured/preconfigured by the protocol, for example, the maximum number of resources stipulated by the protocol is the maximum number of resources that can be indicated by the receiving terminal sending the reservation signaling.
- the trigger conditions for resource reselection include one or more of the following:
- the receiving terminal After resource demodulation fails, the receiving terminal is triggered to perform next resource reselection.
- the number of remaining transmission resources is less than/equal to the preset value, triggering the receiving terminal to perform next resource reselection.
- the triggering moment of resource reselection is T time units (or within) when the triggering condition is met.
- the receiving terminal prevents interference from adjacent terminals by reserving receiving resources
- the receiving terminal reserves receiving resources by sending receiving resource reservation signaling
- adjacent terminals can reserve receiving resources Listening to the signaling can avoid interference to the receiving terminal, thereby effectively alleviating the problem of hidden nodes or exposed nodes.
- the resource reservation method provided by the embodiment of the present application may be executed by a resource reservation device, or a control module in the resource reservation device for executing the resource reservation method.
- the method for resource reservation performed by the resource reservation device is taken as an example to illustrate the resource reservation device provided in the embodiment of the present application.
- the embodiment of the present application also provides a resource reservation device 300, which is applied to a receiving terminal, including:
- the first determination module 301 is configured to determine reception resources to be reserved
- the first sending module 302 is configured to send reception resource reservation signaling, where the reception resource reservation signaling is used to reserve at least one reception resource in the reception resources to be reserved.
- the first determining module includes at least one of the following:
- the first submodule is configured to acquire the transmission resource of the sending terminal, and determine that the transmission resource of the sending terminal is the receiving resource to be reserved;
- the second submodule is configured to select the reception resource to be reserved according to a resource selection rule
- the second submodule is configured to acquire the reception resource to be reserved scheduled by the control node.
- the first submodule includes:
- the first receiving unit is configured to demodulate the resource reservation information of the sending terminal by the receiving terminal, and acquire the transmission resources of the sending terminal;
- the second receiving unit is configured for the receiving terminal to receive the first signaling sent by the sending terminal, where the first signaling is used to indicate the transmission resource of the sending terminal.
- the first sending module includes:
- the first sending submodule is configured to send the receiving resource reservation signaling in a first time unit; wherein the first time unit includes any of the following:
- T7th time unit or T8 time unit after the receiving terminal triggers the selection of receiving resources
- T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11 and T12 are positive integers.
- the first sending module includes:
- the second sending submodule is used to send a receiving resource reservation signaling, and the receiving resource reservation signaling is used to reserve all receiving resources to be reserved;
- the third sending submodule is configured to send at least one reception resource reservation signaling, where the reception resource reservation signaling is used to sequentially reserve the to-be-reserved reception resources sequentially according to predefined rules;
- the fourth sending submodule is configured to send a receiving resource reservation signaling corresponding to each receiving resource to be reserved before each receiving resource to be reserved, and the receiving resource reservation signaling is used to reserve the corresponding The receiving resource to be reserved, or, the receiving resource reservation signaling is used to reserve the corresponding receiving resource to be reserved and the receiving resource to be reserved after the receiving resource to be reserved.
- the receiving resource reserved by the receiving resource reservation signaling is consistent with the transmission resource reserved by the sending terminal.
- the first sending module includes:
- the fifth sending submodule is configured to send at least one receiving resource reservation signaling for one transmission block TB transmission.
- the number of receiving resources that can be reserved by one receiving resource reservation signaling is determined by pre-definition or configuration or pre-configuration;
- the maximum number and/or the minimum number of reception resources that can be reserved by one reception resource reservation signaling is determined by pre-definition or configuration or pre-configuration.
- the fifth sending submodule includes:
- the first sending unit is configured to send the first receiving resource reservation signaling for one transmission block TB transmission;
- the second sending unit is configured to send the second receiving resource reservation signaling after all the receiving resources reserved by the first receiving resource reservation signaling are used; and/or, when the remaining reserved resources are reserved In a case where the number of is less than the first threshold, a third receiving resource reservation signaling is sent.
- the device also includes:
- the first quantity determination module is configured to determine the quantity of reception resources reserved by a reception resource reservation signaling or the quantity of reception resources reserved for this TB transmission according to the degree of resource congestion;
- the second quantity determination module is configured to determine the quantity of receiving resources reserved by a receiving resource reservation signaling or the receiving resources reserved for this TB transmission according to the priority of the current TB or the quality of service QoS of the current TB quantity.
- the number of receiving resources reserved by a receiving resource reservation signaling or the number of receiving resources reserved for this TB transmission has a negative or non-positive relationship with the resource congestion degree
- the number of receiving resources reserved by one receiving resource reservation signaling or the number of receiving resources reserved for this TB transmission has a positive or non-negative relationship with the priority of the TB.
- the transmission resource for receiving the resource reservation signaling is time-division multiplexed with the receiving resource reserved for receiving the resource reservation signaling.
- receiving the resource reservation signaling meets at least one of the following conditions:
- the maximum value of the number of received resource reservation signaling corresponding to TB transmission is determined by pre-definition or configuration or pre-configuration;
- the maximum value of the number sent by the received resource reservation signaling is related to the number of retransmission resources selected by the TB;
- the receiving resources reserved by different receiving resource reservation signaling are different;
- the interval between the first receiving resource reserved by the receiving resource reservation signaling and the receiving resource reservation signaling is less than or equal to a second threshold
- the interval between the last received resource reserved by the received resource reservation signaling and the received resource reservation signaling is less than or equal to a third threshold
- the interval between the last received resource reserved by the received resource reservation signaling and the first reserved received resource is less than or equal to a fourth threshold
- the received resource reservation signaling is sent using the minimum resource allocation granularity.
- the first sending module includes:
- the sixth sending submodule is configured to send and receive resource reservation signaling in a first manner, wherein the first manner includes at least one of the following:
- the reception resource reservation signaling carried on the first channel implicitly indicates that the PSCCH or PSSCH associated with the first channel is reserved as a reception resource; or , indicating the reserved PSCCH or PSSCH indicated by the received resource reservation signaling carried on the first channel.
- sending the time-frequency resource for receiving the resource reservation signaling includes:
- sending the airspace resource for receiving the resource reservation signaling includes any of the following:
- the receiving panel of the receiving terminal The receiving panel of the receiving terminal
- An antenna panel capable of covering the receiving panel of the receiving terminal.
- the receiving terminal prevents interference from adjacent terminals by reserving receiving resources, and the receiving terminal reserves receiving resources by sending receiving resource reservation signaling, and the adjacent terminals can perform receiving resource reservation signaling Monitoring can avoid interference to the receiving terminal, thereby effectively alleviating the problem of hidden nodes or exposed nodes.
- the resource reservation device provided by the embodiment of the present application is a device capable of executing the above resource reservation method, and all embodiments of the above resource reservation method are applicable to this device, and can achieve the same or similar Beneficial effect.
- the resource reservation device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or a component, an integrated circuit, or a chip in a terminal.
- the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
- the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (Personal Computer, PC), a television ( Television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
- the resource reservation device provided by the embodiment of the present application can realize each process realized by the method embodiments in FIG. 1 to FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.
- the embodiment of the present application also provides a terminal 400, including a processor 401, a memory 402, and programs or instructions stored in the memory 402 and executable on the processor 401.
- a terminal 400 including a processor 401, a memory 402, and programs or instructions stored in the memory 402 and executable on the processor 401.
- the programs or instructions are executed by the processor 401, the various processes of the above resource reservation method embodiments can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
- the embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is used to determine the receiving resources to be reserved, and the communication interface is used to send and receive resource reservation signaling, and the receiving resource reservation signaling is used to reserve Reserve at least one receiving resource in the receiving resources to be reserved.
- This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode 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 a hardware structure of a terminal implementing 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, and a processor 510, etc. at least some of the components.
- the terminal 500 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 510 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
- a power supply such as a battery
- the terminal structure shown in FIG. 5 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange different components, which will not be repeated here.
- the input unit 504 may include a graphics processor (Graphics Processing Unit, GPU) 5041 and a microphone 5042, and the graphics processor 5041 is used for the image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
- the display unit 506 may include a display panel 5061, and the display panel 5061 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 other input devices 5072 .
- the touch panel 5071 is also called a 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 repeated here.
- the radio frequency unit 501 receives the downlink data from the network side device, and processes it to the processor 510; in addition, sends the uplink data to the network side device.
- the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
- the memory 509 can be used to store software programs or instructions as well as various data.
- the memory 509 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like.
- the memory 509 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- ROM Read-Only Memory
- PROM programmable read-only memory
- PROM erasable programmable read-only memory
- Erasable PROM Erasable PROM
- EPROM electrically erasable programmable read-only memory
- EEPROM electrically erasable programmable read-only memory
- flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
- the processor 510 may include one or more processing units; optionally, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 510 .
- the processor 510 is configured to determine the reception resource to be reserved
- the radio frequency unit 501 is configured to send reception resource reservation signaling, where the reception resource reservation signaling is used to reserve at least one reception resource in the to-be-reserved reception resources.
- the receiving terminal prevents interference from adjacent terminals by reserving receiving resources, and the receiving terminal reserves receiving resources by sending receiving resource reservation signaling, and the adjacent terminals can perform receiving resource reservation signaling Monitoring can avoid interference to the receiving terminal, thereby effectively alleviating the problem of hidden nodes or exposed nodes.
- the terminal provided by the embodiment of the present application is a terminal capable of performing the above resource reservation method, and all embodiments of the above resource reservation method are applicable to the terminal, and can achieve the same or similar beneficial effects.
- the embodiment of the present application also provides a readable storage medium, the readable storage medium stores a program or an instruction, and when the program or instruction is executed by a processor, each process of the above resource reservation 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 foregoing embodiments.
- the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
- the 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, and the processor is used to run programs or instructions to implement the above resource reservation method embodiment Each process, and can achieve the same technical effect, in order to avoid repetition, will not repeat them here.
- the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
- the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
- the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
- the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also 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 computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.
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Abstract
本申请公开了一种资源预留方法、装置及终端，属于通信技术领域，本申请实施例的资源预留方法包括：接收终端确定待预留接收资源；所述接收终端发送接收资源预留信令，所述接收资源预留信令用于预留所述待预留接收资源中的至少一个接收资源。
Description
相关申请的交叉引用
本申请主张在2021年9月13日在中国提交的中国专利申请号No.202111070804.5的优先权，其全部内容通过引用包含于此。
本申请属于通信技术领域，具体涉及一种资源预留方法、装置及终端。
在第五代(5
th Generation，5G)新空口(New Radio，NR)的直通链路(SideLink，SL，也可翻译为旁链路或副链路)中，发送终端(TX UE)会对其分配的资源进行资源预留或指示(预留分为周期性预留和非周期性预留)，预留资源为后续的采用物理旁链路控制信道(Pysical Sidelink Control Channel，PSCCH)或物理旁链路共享信道(Pysical Sidelink Share Channel，PSSCH)传输所用。
非周期预留/指示可以通过直通链路控制信息(Sidelink Control Information，SCI)中的时间资源分配(Time resource assignment)域实现(至少指示1～32slot的资源)，预留的资源至少可以用作同一个传输块(Transport Block，TB)的传输。
周期预留/指示可以通过SCI中的周期预留(Resource reservation period)域实现，当前周期预留的周期性资源可以用作下一个TB的传输。此处，某个频域资源周期性出现，可称为该资源的周期性资源。
对于PSCCH或PSSCH传输，终端在发送PSCCH或PSSCH前会对传输资源进行资源预留。发送终端进行传输资源选择时，通过监听临近终端的传输资源预留信令，避开临近终端预留的传输资源，减少终端间的相互干扰。而为了对抗频率范围2(Frequency range 2，FR2)带宽上的高传输路损/遮挡问题，SideLink终端在FR2带宽进行传输的时候，可以采用定 向波束进行传输。
但是基于传输资源预留信令的资源选择会造成隐藏节点或暴露节点等问题。而针对FR2带宽上的传输，隐藏节点的问题会变的更加频繁，甚至对近场终端间的传输造成负面影响。
发明内容
本申请实施例提供一种资源预留方法、装置及终端，能够解决基于传输资源预留信令导致的隐藏节点问题或暴露节点问题。
第一方面，提供了一种资源预留方法，包括：
接收终端确定待预留接收资源；
所述接收终端发送接收资源预留信令，所述接收资源预留信令用于预留所述待预留接收资源中的至少一个接收资源。
第二方面，提供了一种资源预留装置，应用于接收终端，包括：
第一确定模块，用于确定待预留接收资源；
第一发送模块，用于发送接收资源预留信令，所述接收资源预留信令用于预留所述待预留接收资源中的至少一个接收资源。
第五方面，提供了一种终端，该终端包括处理器、存储器及存储在所述存储器上并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。
第六方面，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待预留接收资源，所述通信接口用于发送接收资源预留信令，所述接收资源预留信令用于预留所述待预留接收资源中的至少一个接收资源。
第七方面，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。
第八方面，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。
第九方面，提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在非瞬态的存储介质中，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。
第十方面，提供了一种通信设备，被配置为执行如第一方面所述的方法。
在本申请实施例中，接收终端通过预留接收资源的方式防止临近终端的干扰，接收终端通过发送接收资源预留信令对接收资源进行预留，临近终端可以对接收资源预留信令进行监听，能够避免对该接收终端的干扰，从而能够有效的缓解隐藏节点或暴露节点的问题。
图1表示本申请实施例可应用的一种无线通信系统的框图；
图2表示本申请实施例提供的资源预留方法的步骤流程图；
图3表示本申请实施例提供的资源预留装置的结构示意图；
图4表示本申请实施例提供的终端的结构示意图之一；
图5表示本申请实施例提供的终端的结构示意图之二。
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)系统，还可用于其他无线通信系统，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)和其他系统。本申请实施例中的术语“系统”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系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，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系统应用以外的应用，如第6代(6
th Generation，6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端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 UE，VUE)、行人终端(Pedestrian UE，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)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、游戏机等。网络侧设备12可以是基站或核心网，其中，基站可被称为节点B、演进节点B、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)、B节点、演进型B节点(Evolved Node B，eNB)、家用B节点、家用演进型B节点、无线局域网(Wireless Local Area Networks，WLAN)接入点、无线保真(Wireless Fidelity，WiFi)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系统中的基站为例，但是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资源预留方法进行详细地说明。
如图2所示，本申请实施例提供一种资源预留方法，包括：
步骤201，接收终端确定待预留接收资源；
步骤202，所述接收终端发送接收资源预留信令，所述接收资源预留信令用于预留所述待预留接收资源中的至少一个接收资源。
例如，接收终端用接收波束发送接收资源预留信令，临近终端使用发送波束进行监听。如果临近终端能够监听到某个接收终端预留了某个或某些接收资源，那么该临近终端不能使用该发送波束在接收终端预留的接收资源上进行发送，以避免对该接收终端的干扰。
在本申请的至少一个实施例中，步骤201包括：
接收终端获取发送终端的传输资源，确定所述发送终端的传输资源为所述待预留接收资源。
其中，接收终端获取发送终端的传输资源，包括：
接收终端解调发送终端的资源预留信息，获取所述发送终端的传输资源；
或者，
接收终端接收发送终端发送的第一信令，所述第一信令用于指示所述发送终端的传输资源。例如，第一信令为无线资源控制(Radio Resource Control，RRC)信令，或媒体接入控制层控制单元(Medium Access Control Control Element，MAC CE)，或直通链路控制信息SCI(如第二级SCI(2
nd stage SCI)， 或第三级SCI(3
rd stage SCI))。
或者，在本申请的至少一个实施例中，步骤201包括：
接收终端根据资源选择规则选择所述待预留接收资源；即接收终端自主选择接收资源。
或者，在本申请的至少一个实施例中步骤201包括：
接收终端获取控制节点调度的所述待预留接收资源；例如，控制节点为网络侧设备或头节点用户设备(User Equipment，UE)(leading-UE)。
在本申请的至少一个可选实施例中，步骤202包括：
所述接收终端在第一时间单元发送所述接收资源预留信令；本申请实施例中接收终端应尽量早的发送对应的接收资源预留信令，以避免已选择的上述待预留接收资源被其他终端占用。
其中，所述第一时间单元包括以下任一项：
接收终端接收到发送终端的资源通知信令后的第T1个时间单元或T2个时间单元之内；该资源通知信令用于通知接收终端对应的发送终端的传输资源；
接收终端接收到发送终端的传输资源预留信令后的第T3个时间单元或T4个时间单元之内；例如，该传输资源预留信令由发送终端发送，用于预留对应的传输资源；
接收终端接收到控制节点的资源调度信令后的第T5个时间单元或T6个时间单元之内；例如，该控制节点为网络侧设备或头节点UE(leading-UE)；
接收终端触发接收资源选择后的第T7个时间单元或T8个时间单元之内；
所述接收资源预留信令预留的接收资源的起始时刻之前的时间单元；
所述接收资源预留信令预留的所述接收资源的第T9个时间单元或第T10个时间单元之前；
所述接收终端的前一个预留资源后的第T11个时间单元或T12个时间单元之内；
其中，T1，T2，T3，T4，T5，T6，T7，T8，T9，T10，T11以及T12 为正整数。
可选的，T1，T2，T3，T4，T5，T6，T7，T8，T9，T10，T11以及T12可以为协议约定或控制节点配置或预配置的值，在此不做具体限定。
例如，对于某个TB接收，接收端发送M个接收资源预留信令预留N个接收资源(M<N)，上述“前一个预留资源”为前一个接收资源预留信令预留的最后一个资源，本次接收资源预留信令的发送时间为“前一个预留资源后的第T11个时间单元或T12个时间单元之内”。
在本申请的至少一个可选实施例中，接收资源预留信令应尽量全面地预留传输的资源，相应的步骤202包括：
接收终端发送一个接收资源预留信令，所述接收资源预留信令用于预留全部待预留接收资源；即接收资源预留信令一次预留所有的待预留接收资源。
或者，步骤202包括：
接收终端发送至少一个接收资源预留信令，所述接收资源预留信令用于按照预定义规则依序连续预留所述待预留接收资源。
例如，接收资源预留信令可以预留P个连续的已选资源(即所述待预留接收资源)；如果接收终端发送多个接收资源预留信令，本次接收资源预留信令预留的第一个已选资源不晚于上一个接收资源预留信令预留的最后一个已选资源的后一个已选资源。
或者，步骤202包括：
在每个待预留接收资源之前，接收终端发送与每个待预留接收资源对应的接收资源预留信令，所述接收资源预留信令用于预留对应的待预留接收资源，或者，所述接收资源预留信令用于预留对应的待预留接收资源以及该待预留接收资源之后的待预留接收资源。
例如，接收终端确定A个待预留接收资源，接收终端发送A个接收资源预留信令(一个接收资源预留信令在对应的待预留接收资源之前发送)。若待预留接收资源1对应接收资源预留信令1，则该接收资源预留信令1用于预留待预留接收资源1，或者，该接收资源预留信令1用于预留待预留接收资 源1以及该待预留接收资源1之后的待预留接收资源2。
在本申请的至少一个实施例中，接收资源预留信令不预留过多资源，以避免未使用的预留资源造成的资源浪费。相应的，所述接收资源预留信令预留的接收资源与发送终端预留的传输资源一致。
例如，接收终端发送的接收资源预留信令仅预留发送终端已经预留的传输资源；或者，接收终端发送的接收资源预留信令仅预留下一个传输资源预留信令能够预留的资源。
作为一个可选实施例，步骤202包括：
针对一次传输块TB传输，所述接收终端发送至少一个接收资源预留信令。例如，对于TB的传输资源，接收终端可以分多次预留接收资源。
可选的，一个接收资源预留信令能够预留的接收资源的数量由预定义或配置或预配置确定；
或者一个接收资源预留信令能够预留的接收资源的最大数量和/或最小数量由预定义或配置或预配置确定。
在本申请的至少一个实施例中，针对一次传输块TB传输，所述接收终端发送至少一个接收资源预留信令，包括：
针对一次传输块TB传输，所述接收终端发送第一接收资源预留信令；
在第一接收资源预留信令预留的接收资源均被使用后，所述接收终端发送第二接收资源预留信令；和/或，在剩余的已预留的预留资源的个数小于第一门限的情况下，所述接收终端发送第三接收资源预留信令。
换言之，对于TB的传输资源，如果分多次预留接收资源，每次预留新的接收资源仅在上次预留的接收资源用完后，或者仅在剩余的已预留接收资源的数量小于第一门限的情况下。
在本申请的至少一个可选实施例中，所述方法还包括：
接收终端根据资源拥塞程度，确定一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量；以便在资源拥挤的时候，尽量减少过多预留造成的资源浪费。
可选的，所述拥塞程度可以根据信道繁忙率(Channel Busy Ratio，CBR)判定。
其中，一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量与所述资源拥塞程度成负向或非正向关系。即拥塞程度越高，一个接收资源预留信令所预留的接收资源的数量越小或者本次TB传输预留的接收资源的数量越小。
或者，在本申请的至少一个可选实施例中，所述方法还包括：
接收终端根据本次TB的优先级或本次TB的服务质量(Quality of Service，QoS)，确定一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量。以便减少为低优先级的TB传输预留的资源，尽量减少过多预留造成的资源浪费。
可选的，一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量与所述TB的优先级成正向或非负向关系。即优先级越高，一个接收资源预留信令所预留的接收资源的数量越大或者本次TB传输预留的接收资源的数量越大。
在本申请的至少一个实施例中，所述接收资源预留信令的传输资源与所述接收资源预留信令预留的接收资源时分复用，以避免半双工的问题。可选的，接收资源预留信令的传输资源选择的时候排除已选资源(即待预留接收资源)所在的时域资源。
在本申请的至少一个实施例中，接收资源预留信令的开销应尽量降低，则接收资源预留信令满足下述至少一个条件：
TB传输对应的所述接收资源预留信令发送的数量的最大值由预定义或配置或预配置的方式确定；
所述接收资源预留信令发送的数量的最大值与TB所选的重传资源数相关；例如，最大值小于或者等于所选的重传资源数/N，N为协议约定或配置或预配置的值；
不同接收资源预留信令预留的接收资源不同；换言之，接收资源预留信 令不能重复的预留同一个资源，以便减少接收资源预留信令的发送次数；例如，本次接收资源预留信令预留的第一个资源在上一个接收资源预留信令预留的最后一个资源之后；
所述接收资源预留信令预留的第一个接收资源与所述接收资源预留信令之间的间隔小于或等于第二门限值；
所述接收资源预留信令预留的最后一个接收资源与所述接收资源预留信令之间的间隔小于或者等于第三门限值；
所述接收资源预留信令预留的最后一个接收资源与预留的第一个接收资源之间的间隔小于或者等于第四门限值；
所述接收资源预留信令采用最小资源分配粒度发送，例如，最小资源分配粒度为1个子信道(subchannel)或1个时隙(slot)；
所述接收资源预留信令只能采用单次重传。
在本申请的至少一个实施例中，步骤202包括：
所述接收终端采用第一方式发送接收资源预留信令，其中，所述第一方式包括下述至少一项：
采用物理旁链路控制信道PSCCH或物理旁链路共享信道PSSCH承载所述接收资源预留信令；
采用第一信道承载所述接收资源预留信令；其中，所述第一信道上承载的接收资源预留信令隐式指示与第一信道关联的PSCCH或PSSCH被预留为接收资源；或者，所述第一信道上承载的接收资源预留信令显示的指示预留的PSCCH或PSSCH。
可选的，采用PSCCH或PSSCH承载所述接收资源预留信令包括：
采用第一级SCI(1
st stage SCI)传输所述接收资源预留信令。例如，复用1
st stage SCI中的资源指示域进行接收资源预留，至少SCI中指示的第二个和/或第三个资源为接收资源预留的接收资源；再例如，1
st stage SCI中的保留比特(reserve bits)的固定状态表示该信令用于接收终端预留资源；
或者，采用2
nd stage SCI或3
rd stage SCI传输所述接收资源预留信令；
例如，新定义2
nd stage SCI format或3
rd stage SCI；
再例如，复用1
st stage SCI中的资源指示域进行接收资源预留指示；
或者，复用周期性资源指示(period域)和/或非周期性资源指示(时域资源分配(Time Domain Resource Assignment，TDRA)域或频域资源分配(Frequency Domain Resource Assignment，FDRA)域)；其中，TDRA域或FDRA域指示的第一个资源的时域/频域起始位置需额外指示。
或者，采用RRC或MAC CE传输所述接收资源预留信令；
其中，MAC CE的逻辑信道标识(Logical Channel Identity，LCID)为协议约定/配置/预配置的；相应信息传输的QoS要求为协议约定/配置/预配置的，例如优先级(priority)或延迟(latency)或可靠性(reliability)。
作为一个可选实施例，第一信道与关联的PSCCH或PSSCH进行时分复用(Time Division Multiplexing，TDM)，以避免半双工等问题。
作为另一个可选实施例，第一信道与关联的PSCCH或PSSCH在不同的资源池内，以便减少终端信道解码等影响。
在本申请的至少一个可选实施例中，发送所述接收资源预留信令的时频资源包括：
接收终端选择的时频资源；即接收终端自主选择接收资源预留信令的传输资源；
或者，
发送终端或控制节点指示的时频资源；即由发送终端或控制节点选择接收资源预留信令的传输资源，并通知给接收终端；其中，控制节点为基站或leading-UE。
在本申请的至少一个可选实施例中，发送所述接收资源预留信令的空域资源包括以下任一项：
接收终端的接收波束；
接收终端的接收面板；
能够覆盖所述接收终端的接收波束的波束；
能够覆盖所述接收终端的接收面板的天线面板。
可选的，接收终端的接收波束为：预留的接收资源上接收对应的接收波束。
例如，接收终端采用预设波束(如全向波束)/预设面板(如所有面板)进行资源预留。
作为一个可选实施例，接收终端自主选择接收资源的行为包括：
接收终端对一次TB传输仅进行一次资源选择。
可选的，对一次TB传输最大的资源个数由协议约定/配置/预配置。
或者，接收终端对一次TB传输可以进行多次资源选择。即根据TB的实际解调情况，选择适当数量的传输资源，以保证传输可靠性和资源效率。
可选的，对一次TB传输最大的资源个数由协议约定/配置/预配置。
可选的，每次资源选择的最大的资源个数由协议约定/配置/预配置，例如协议约定最大的资源个数为接收终端发送预留信令能够指示的最大的资源个数。
可选的，资源重选的触发条件包括以下一项或多项：
资源解调失败后，触发接收终端进行下一次资源重选。
剩余传输资源的个数小于/等于预设值，触发接收终端进行下一次资源重选。
可选的，资源重选的触发时刻为满足所述触发条件的T个时间单元(或之内)。
综上，在本申请实施例中，接收终端通过预留接收资源的方式防止临近终端的干扰，接收终端通过发送接收资源预留信令对接收资源进行预留，临近终端可以对接收资源预留信令进行监听，能够避免对该接收终端的干扰，从而能够有效的缓解隐藏节点或暴露节点的问题。
需要说明的是，本申请实施例提供的资源预留方法，执行主体可以为资源预留装置，或者，该资源预留装置中的用于执行资源预留方法的控制模块。本申请实施例中以资源预留装置执行资源预留方法为例，说明本申请实施例 提供的资源预留装置。
如图3所示，本申请实施例还提供一种资源预留装置300，应用于接收终端，包括：
第一确定模块301，用于确定待预留接收资源；
第一发送模块302，用于发送接收资源预留信令，所述接收资源预留信令用于预留所述待预留接收资源中的至少一个接收资源。
作为一个可选实施例，所述第一确定模块包括以下至少一项：
第一子模块，用于获取发送终端的传输资源，确定所述发送终端的传输资源为所述待预留接收资源；
第二子模块，用于根据资源选择规则选择所述待预留接收资源；
第二子模块，用于获取控制节点调度的所述待预留接收资源。
作为一个可选实施例，所述第一子模块包括：
第一接收单元，用于接收终端解调发送终端的资源预留信息，获取所述发送终端的传输资源；
或者，
第二接收单元，用于接收终端接收发送终端发送的第一信令，所述第一信令用于指示所述发送终端的传输资源。
作为一个可选实施例，所述第一发送模块包括：
第一发送子模块，用于在第一时间单元发送所述接收资源预留信令；其中，所述第一时间单元包括以下任一项：
接收终端接收到发送终端的资源通知信令后的第T1个时间单元或T2个时间单元之内；
接收终端接收到发送终端的传输资源预留信令后的第T3个时间单元或T4个时间单元之内；
接收终端接收到控制节点的资源调度信令后的第T5个时间单元或T6个时间单元之内；
接收终端触发接收资源选择后的第T7个时间单元或T8个时间单元之内；
所述接收资源预留信令预留的接收资源的起始时刻之前的时间单元；
所述接收资源预留信令预留的所述接收资源的第T9个时间单元或第T10个时间单元之前；
所述接收终端的前一个预留资源后的第T11个时间单元或T12个时间单元之内；
其中，T1，T2，T3，T4，T5，T6，T7，T8，T9，T10，T11以及T12为正整数。
作为一个可选实施例，所述第一发送模块包括：
第二发送子模块，用于发送一个接收资源预留信令，所述接收资源预留信令用于预留全部待预留接收资源；
或者，
第三发送子模块，用于发送至少一个接收资源预留信令，所述接收资源预留信令用于按照预定义规则依序连续预留所述待预留接收资源；
或者，
第四发送子模块，用于在每个待预留接收资源之前，发送与每个待预留接收资源对应的接收资源预留信令，所述接收资源预留信令用于预留对应的待预留接收资源，或者，所述接收资源预留信令用于预留对应的待预留接收资源以及该待预留接收资源之后的待预留接收资源。
作为一个可选实施例，所述接收资源预留信令预留的接收资源与发送终端预留的传输资源一致。
作为一个可选实施例，所述第一发送模块包括：
第五发送子模块，用于针对一次传输块TB传输，发送至少一个接收资源预留信令。
作为一个可选实施例，一个接收资源预留信令能够预留的接收资源的数量由预定义或配置或预配置确定；
或者一个接收资源预留信令能够预留的接收资源的最大数量和/或最小数量由预定义或配置或预配置确定。
作为一个可选实施例，所述第五发送子模块包括：
第一发送单元，用于针对一次传输块TB传输，发送第一接收资源预留信令；
第二发送单元，用于在第一接收资源预留信令预留的接收资源均被使用后，发送第二接收资源预留信令；和/或，在剩余的已预留的预留资源的个数小于第一门限的情况下，发送第三接收资源预留信令。
作为一个可选实施例，所述装置还包括：
第一数量确定模块，用于根据资源拥塞程度，确定一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量；
或者，
第二数量确定模块，用于根据本次TB的优先级或本次TB的服务质量QoS，确定一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量。
作为一个可选实施例，一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量与所述资源拥塞程度成负向或非正向关系；
或者，
一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量与所述TB的优先级成正向或非负向关系。
作为一个可选实施例，所述接收资源预留信令的传输资源与所述接收资源预留信令预留的接收资源时分复用。
作为一个可选实施例，接收资源预留信令满足下述至少一个条件：
TB传输对应的所述接收资源预留信令发送的数量的最大值由预定义或配置或预配置的方式确定；
所述接收资源预留信令发送的数量的最大值与TB所选的重传资源数相关；
不同接收资源预留信令预留的接收资源不同；
所述接收资源预留信令预留的第一个接收资源与所述接收资源预留信令之间的间隔小于或等于第二门限值；
所述接收资源预留信令预留的最后一个接收资源与所述接收资源预留信令之间的间隔小于或者等于第三门限值；
所述接收资源预留信令预留的最后一个接收资源与预留的第一个接收资源之间的间隔小于或者等于第四门限值；
所述接收资源预留信令采用最小资源分配粒度发送。
作为一个可选实施例，第一发送模块包括：
第六发送子模块，用于采用第一方式发送接收资源预留信令，其中，所述第一方式包括下述至少一项：
采用物理旁链路控制信道PSCCH或物理旁链路共享信道PSSCH承载所述接收资源预留信令；
采用第一信道承载所述接收资源预留信令；其中，所述第一信道上承载的接收资源预留信令隐式指示与第一信道关联的PSCCH或PSSCH被预留为接收资源；或者，所述第一信道上承载的接收资源预留信令显示的指示预留的PSCCH或PSSCH。
作为一个可选实施例，发送所述接收资源预留信令的时频资源包括：
接收终端选择的时频资源；
或者，
发送终端或控制节点指示的时频资源。
作为一个可选实施例，发送所述接收资源预留信令的空域资源包括以下任一项：
接收终端的接收波束；
接收终端的接收面板；
能够覆盖所述接收终端的接收波束的波束；
能够覆盖所述接收终端的接收面板的天线面板。
在本申请实施例中，接收终端通过预留接收资源的方式防止临近终端的 干扰，接收终端通过发送接收资源预留信令对接收资源进行预留，临近终端可以对接收资源预留信令进行监听，能够避免对该接收终端的干扰，从而能够有效的缓解隐藏节点或暴露节点的问题。
需要说明的是，本申请实施例提供的资源预留装置是能够执行上述资源预留方法的装置，则上述资源预留方法的所有实施例均适用于该装置，且均能达到相同或相似的有益效果。
本申请实施例中的资源预留装置可以是装置，具有操作系统的装置或电子设备，也可以是终端中的部件、集成电路、或芯片。该装置或电子设备可以是移动终端，也可以为非移动终端。示例性的，移动终端可以包括但不限于上述所列举的终端11的类型，非移动终端可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(Personal Computer，PC)、电视机(Television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例提供的资源预留装置能够实现图1至图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终端400，包括处理器401，存储器402，存储在存储器402上并可在所述处理器401上运行的程序或指令，该程序或指令被处理器401执行时实现上述资源预留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终端，包括处理器和通信接口，处理器用于确定待预留接收资源，通信接口用于发送接收资源预留信令，所述接收资源预留信令用于预留所述待预留接收资源中的至少一个接收资源。该终端实施例是与上述终端侧方法实施例对应的，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系统与处理器510逻辑相连，从而通过电源管理系统实现管理充电、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。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将来自网络侧设备的下行数据接收后，给处理器510处理；另外，将上行的数据发送给网络侧设备。通常，射频单元501包括但不限于天线、至少一个放大器、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区和存储数据区，其中，存储程序或指令区可存储操作系统、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可以包括高速随机存取存储器，还可以包括非易失性存储器，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。例如至少一个磁盘存储器件、 闪存器件、或其他非易失性固态存储器件。
处理器510可包括一个或多个处理单元；可选的，处理器510可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操作系统、用户界面和应用程序或指令等，调制解调处理器主要处理无线通信，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，处理器510，用于确定待预留接收资源；
射频单元501，用于发送接收资源预留信令，所述接收资源预留信令用于预留所述待预留接收资源中的至少一个接收资源。
在本申请实施例中，接收终端通过预留接收资源的方式防止临近终端的干扰，接收终端通过发送接收资源预留信令对接收资源进行预留，临近终端可以对接收资源预留信令进行监听，能够避免对该接收终端的干扰，从而能够有效的缓解隐藏节点或暴露节点的问题。
需要说明的是，本申请实施例提供的终端是能够执行上述资源预留方法的终端，则上述资源预留方法的所有实施例均适用于该终端，且均能达到相同或相似的有益效果。
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资源预留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(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，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，实现上述资源预留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系统级芯片，系统芯片，芯片系统或片上系统芯片等。
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 (37)
- 一种资源预留方法，包括：接收终端确定待预留接收资源；所述接收终端发送接收资源预留信令，所述接收资源预留信令用于预留所述待预留接收资源中的至少一个接收资源。
- 根据权利要求1所述的方法，其中，所述接收终端确定待预留接收资源，包括：接收终端获取发送终端的传输资源，确定所述发送终端的传输资源为所述待预留接收资源；或者，接收终端根据资源选择规则选择所述待预留接收资源；或者，接收终端获取控制节点调度的所述待预留接收资源。
- 根据权利要求2所述的方法，其中，接收终端获取发送终端的传输资源，包括：接收终端解调发送终端的资源预留信息，获取所述发送终端的传输资源；或者，接收终端接收发送终端发送的第一信令，所述第一信令用于指示所述发送终端的传输资源。
- 根据权利要求1所述的方法，其中，所述接收终端发送接收资源预留信令，包括：所述接收终端在第一时间单元发送所述接收资源预留信令；其中，所述第一时间单元包括以下任一项：接收终端接收到发送终端的资源通知信令后的第T1个时间单元或T2个时间单元之内；接收终端接收到发送终端的传输资源预留信令后的第T3个时间单元或 T4个时间单元之内；接收终端接收到控制节点的资源调度信令后的第T5个时间单元或T6个时间单元之内；接收终端触发接收资源选择后的第T7个时间单元或T8个时间单元之内；所述接收资源预留信令预留的接收资源的起始时刻之前的时间单元；所述接收资源预留信令预留的所述接收资源的第T9个时间单元或第T10个时间单元之前；所述接收终端的前一个预留资源后的第T11个时间单元或T12个时间单元之内；其中，T1，T2，T3，T4，T5，T6，T7，T8，T9，T10，T11以及T12为正整数。
- 根据权利要求1所述的方法，其中，所述接收终端发送接收资源预留信令，包括：接收终端发送一个接收资源预留信令，所述接收资源预留信令用于预留全部待预留接收资源；或者，接收终端发送至少一个接收资源预留信令，所述接收资源预留信令用于按照预定义规则依序连续预留所述待预留接收资源；或者，在每个待预留接收资源之前，接收终端发送与每个待预留接收资源对应的接收资源预留信令，所述接收资源预留信令用于预留对应的待预留接收资源，或者，所述接收资源预留信令用于预留对应的待预留接收资源以及该待预留接收资源之后的待预留接收资源。
- 根据权利要求1所述的方法，其中，所述接收资源预留信令预留的接收资源与发送终端预留的传输资源一致。
- 根据权利要求1所述的方法，其中，所述接收终端发送接收资源预留信令，包括：针对一次传输块TB传输，所述接收终端发送至少一个接收资源预留信令。
- 根据权利要求7所述的方法，其中，一个接收资源预留信令能够预留的接收资源的数量由预定义或配置或预配置确定；或者一个接收资源预留信令能够预留的接收资源的最大数量和/或最小数量由预定义或配置或预配置确定。
- 根据权利要求7所述的方法，其中，针对一次传输块TB传输，所述接收终端发送至少一个接收资源预留信令，包括：针对一次传输块TB传输，所述接收终端发送第一接收资源预留信令；在第一接收资源预留信令预留的接收资源均被使用后，所述接收终端发送第二接收资源预留信令；和/或，在剩余的已预留的预留资源的个数小于第一门限的情况下，所述接收终端发送第三接收资源预留信令。
- 根据权利要求7所述的方法，所述方法还包括：接收终端根据资源拥塞程度，确定一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量；或者，接收终端根据本次TB的优先级或本次TB的服务质量QoS，确定一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量。
- 根据权利要求10所述的方法，其中，一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量与所述资源拥塞程度成负向或非正向关系；或者，一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量与所述TB的优先级成正向或非负向关系。
- 根据权利要求1所述的方法，其中，所述接收资源预留信令的传输资源与所述接收资源预留信令预留的接收资源时分复用。
- 根据权利要求1所述的方法，其中，接收资源预留信令满足下述至少一个条件：TB传输对应的所述接收资源预留信令发送的数量的最大值由预定义或配置或预配置的方式确定；所述接收资源预留信令发送的数量的最大值与TB所选的重传资源数相关；不同接收资源预留信令预留的接收资源不同；所述接收资源预留信令预留的第一个接收资源与所述接收资源预留信令之间的间隔小于或等于第二门限值；所述接收资源预留信令预留的最后一个接收资源与所述接收资源预留信令之间的间隔小于或者等于第三门限值；所述接收资源预留信令预留的最后一个接收资源与预留的第一个接收资源之间的间隔小于或者等于第四门限值；所述接收资源预留信令采用最小资源分配粒度发送。
- 根据权利要求1所述的方法，其中，所述接收终端发送接收资源预留信令，包括：所述接收终端采用第一方式发送接收资源预留信令，其中，所述第一方式包括下述至少一项：采用物理旁链路控制信道PSCCH或物理旁链路共享信道PSSCH承载所述接收资源预留信令；采用第一信道承载所述接收资源预留信令；其中，所述第一信道上承载的接收资源预留信令隐式指示与第一信道关联的PSCCH或PSSCH被预留为接收资源；或者，所述第一信道上承载的接收资源预留信令显示的指示预留的PSCCH或PSSCH。
- 根据权利要求1所述的方法，其中，发送所述接收资源预留信令的时频资源包括：接收终端选择的时频资源；或者，发送终端或控制节点指示的时频资源。
- 根据权利要求1所述的方法，其中，发送所述接收资源预留信令的空域资源包括以下任一项：接收终端的接收波束；接收终端的接收面板；能够覆盖所述接收终端的接收波束的波束；能够覆盖所述接收终端的接收面板的天线面板。
- 一种资源预留装置，应用于接收终端，所述装置包括：第一确定模块，用于确定待预留接收资源；第一发送模块，用于发送接收资源预留信令，所述接收资源预留信令用于预留所述待预留接收资源中的至少一个接收资源。
- 根据权利要求17所述的装置，其中，所述第一确定模块包括以下至少一项：第一子模块，用于获取发送终端的传输资源，确定所述发送终端的传输资源为所述待预留接收资源；第二子模块，用于根据资源选择规则选择所述待预留接收资源；第二子模块，用于获取控制节点调度的所述待预留接收资源。
- 根据权利要求18所述的装置，其中，所述第一子模块包括：第一接收单元，用于接收终端解调发送终端的资源预留信息，获取所述发送终端的传输资源；或者，第二接收单元，用于接收终端接收发送终端发送的第一信令，所述第一信令用于指示所述发送终端的传输资源。
- 根据权利要求17所述的装置，其中，所述第一发送模块包括：第一发送子模块，用于在第一时间单元发送所述接收资源预留信令；其中，所述第一时间单元包括以下任一项：接收终端接收到发送终端的资源通知信令后的第T1个时间单元或T2个时间单元之内；接收终端接收到发送终端的传输资源预留信令后的第T3个时间单元或T4个时间单元之内；接收终端接收到控制节点的资源调度信令后的第T5个时间单元或T6个时间单元之内；接收终端触发接收资源选择后的第T7个时间单元或T8个时间单元之内；所述接收资源预留信令预留的接收资源的起始时刻之前的时间单元；所述接收资源预留信令预留的所述接收资源的第T9个时间单元或第T10个时间单元之前；所述接收终端的前一个预留资源后的第T11个时间单元或T12个时间单元之内；其中，T1，T2，T3，T4，T5，T6，T7，T8，T9，T10，T11以及T12为正整数。
- 根据权利要求17所述的装置，其中，所述第一发送模块包括：第二发送子模块，用于发送一个接收资源预留信令，所述接收资源预留信令用于预留全部待预留接收资源；或者，第三发送子模块，用于发送至少一个接收资源预留信令，所述接收资源预留信令用于按照预定义规则依序连续预留所述待预留接收资源；或者，第四发送子模块，用于在每个待预留接收资源之前，发送与每个待预留接收资源对应的接收资源预留信令，所述接收资源预留信令用于预留对应的待预留接收资源，或者，所述接收资源预留信令用于预留对应的待预留接收资源以及该待预留接收资源之后的待预留接收资源。
- 根据权利要求17所述的装置，其中，所述接收资源预留信令预留的接收资源与发送终端预留的传输资源一致。
- 根据权利要求17所述的装置，其中，所述第一发送模块包括：第五发送子模块，用于针对一次传输块TB传输，发送至少一个接收资源预留信令。
- 根据权利要求23所述的装置，其中，一个接收资源预留信令能够预留的接收资源的数量由预定义或配置或预配置确定；或者一个接收资源预留信令能够预留的接收资源的最大数量和/或最小数量由预定义或配置或预配置确定。
- 根据权利要求23所述的装置，其中，所述第五发送子模块包括：第一发送单元，用于针对一次传输块TB传输，发送第一接收资源预留信令；第二发送单元，用于在第一接收资源预留信令预留的接收资源均被使用后，发送第二接收资源预留信令；和/或，在剩余的已预留的预留资源的个数小于第一门限的情况下，发送第三接收资源预留信令。
- 根据权利要求23所述的装置，所述装置还包括：第一数量确定模块，用于根据资源拥塞程度，确定一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量；或者，第二数量确定模块，用于根据本次TB的优先级或本次TB的服务质量QoS，确定一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量。
- 根据权利要求26所述的装置，其中，一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量与所述资源拥塞程度成负向或非正向关系；或者，一个接收资源预留信令所预留的接收资源的数量或者本次TB传输预留的接收资源的数量与所述TB的优先级成正向或非负向关系。
- 根据权利要求17所述的装置，其中，所述接收资源预留信令的传输 资源与所述接收资源预留信令预留的接收资源时分复用。
- 根据权利要求17所述的装置，其中，接收资源预留信令满足下述至少一个条件：TB传输对应的所述接收资源预留信令发送的数量的最大值由预定义或配置或预配置的方式确定；所述接收资源预留信令发送的数量的最大值与TB所选的重传资源数相关；不同接收资源预留信令预留的接收资源不同；所述接收资源预留信令预留的第一个接收资源与所述接收资源预留信令之间的间隔小于或等于第二门限值；所述接收资源预留信令预留的最后一个接收资源与所述接收资源预留信令之间的间隔小于或者等于第三门限值；所述接收资源预留信令预留的最后一个接收资源与预留的第一个接收资源之间的间隔小于或者等于第四门限值；所述接收资源预留信令采用最小资源分配粒度发送。
- 根据权利要求17所述的装置，其中，第一发送模块包括：第六发送子模块，用于采用第一方式发送接收资源预留信令，其中，所述第一方式包括下述至少一项：采用物理旁链路控制信道PSCCH或物理旁链路共享信道PSSCH承载所述接收资源预留信令；采用第一信道承载所述接收资源预留信令；其中，所述第一信道上承载的接收资源预留信令隐式指示与第一信道关联的PSCCH或PSSCH被预留为接收资源；或者，所述第一信道上承载的接收资源预留信令显示的指示预留的PSCCH或PSSCH。
- 根据权利要求17所述装置，其中，发送所述接收资源预留信令的时频资源包括：接收终端选择的时频资源；或者，发送终端或控制节点指示的时频资源。
- 根据权利要求17所述的装置，其中，发送所述接收资源预留信令的空域资源包括以下任一项：接收终端的接收波束；接收终端的接收面板；能够覆盖所述接收终端的接收波束的波束；能够覆盖所述接收终端的接收面板的天线面板。
- 一种终端，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，其中，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16中任一项所述的资源预留方法的步骤。
- 一种可读存储介质，所述可读存储介质上存储程序或指令，其中，所述程序或指令被处理器执行时实现如权利要求1至16中任一项所述的资源预留方法的步骤。
- 一种芯片，包括处理器和通信接口，其中，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，实现如权利要求1至16中任一项所述的资源预留方法的步骤。
- 一种计算机程序产品，其中，所述计算机程序产品被存储在非瞬态的可读存储介质中，所述计算机程序产品被至少一个处理器执行以实现如权利要求1至16中任一项所述的资源预留方法的步骤。
- 一种通信设备，被配置为执行如权利要求1至16中任一项所述的资源预留方法的步骤。
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| US20200029340A1 (en) * | 2018-07-19 | 2020-01-23 | Samsung Electronics Co., Ltd. | Method and apparatus for nr v2x resource selection |
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