WO2022151287A1 - 资源选择方法、装置和*** - Google Patents
资源选择方法、装置和*** Download PDFInfo
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- 238000010187 selection method Methods 0.000 title abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 195
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- 238000000034 method Methods 0.000 abstract description 77
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
Definitions
- the embodiments of the present application relate to the field of communication technologies.
- discontinuous reception can be configured on the Uu link (Uu link) for the terminal device to achieve the purpose of enabling the terminal device to save power.
- the terminal equipment can be configured with a semi-static period running timer, called drx-OnDurationTimer. During the running period of this timer, the terminal equipment needs to perform blind detection on the downlink control channel (PDCCH). The PDCCH is detected, and the receiving radio frequency can even be turned off based on the implementation to achieve the purpose of saving power.
- drx-OnDurationTimer a semi-static period running timer
- Uu DRX also introduces a timer based on event-based operation, which can dynamically switch the terminal device to the Active state when the conditions are met to perform PDCCH processing.
- Blind detection Specifically, the terminal device can be dynamically placed in an active state by drx-RetransmissionTimerDL or drx-RetransmissionTimerUL configured according to each HARQ process, which is used to detect the counterweight on the downlink (DL) and uplink (UL) respectively.
- the PDCCH for scheduling is transmitted.
- the terminal device can be in an active state at the time when the network device may schedule retransmission, which can ensure that the terminal device can detect and receive the PDCCH that schedules the retransmission.
- Mode 2 the terminal device autonomously selects the transmission resources
- the transmission resources of the terminal device are detected by sensing (sensing). ) and obtained during the resource selection process. That is, the terminal device needs to obtain the resource occupancy in the entire resource pool through the sensing process, and then select appropriate resources to send data packets.
- the DRX mechanism can be reused on the sidelink as a baseline.
- the sending device needs to consider the configuration of its SL DRX to ensure that the receiving device is in the active state of SL DRX when it is sending data, otherwise the receiving device cannot receive and correctly decode the sent data. Bag.
- the sending device works in Mode 2 mode, it is necessary to enhance the existing resource selection process to ensure that the time corresponding to the resource selected by the sending device is at the SL DRX activation time of the receiving device, to avoid the fact that the receiving device is not in the receiving state.
- the resulting packet loss occurs, as shown in Figure 1; on the other hand, the reliability degradation due to the introduction of SL DRX is avoided, as shown in Figure 2.
- embodiments of the present application provide a resource selection method, apparatus, and system.
- a resource selection apparatus which is configured on a first terminal device, the first terminal device sends side link data to a second terminal device, and the second terminal device is configured with a side link.
- Link discontinuous reception (SL DRX) the resource selection means includes:
- a generating unit which generates a first candidate resource set and a second candidate resource set, where the first candidate resource set is at least one of a selection window of the first terminal device and a selection window of the second terminal device during the selection window The set of all candidate resources in the time period in which consecutive SL DRX activation times overlap;
- a determination unit which respectively determines the candidate resources available for side link data transmission in the first candidate resource set and the candidate resources available for side link data transmission in the second candidate resource set, and obtains a first candidate resource sub-set set and a second subset of candidate resources;
- a selection unit that selects a resource for transmitting a first predetermined number of transmissions of side link data in the first candidate resource subset, and selects a resource for transmitting side link data in the second candidate resource subset Resource for the remaining number of transfers.
- a resource selection apparatus configured in a first terminal device, the first terminal device sends side link data to a second terminal device, and the second terminal device is configured with For discontinuous reception, the resource selection device includes:
- a generating unit that generates a third candidate resource set
- a determining unit which determines candidate resources available for side link data transmission in the third candidate resource set to obtain a third candidate resource subset
- a selection unit that selects a resource for transmitting side link data in the third candidate resource subset
- the third candidate resource subset includes candidate resources except all candidate resources before a predetermined time unit within the selection window of the first terminal device, where the predetermined time unit refers to the The selection window overlaps with the first time slot of the second terminal device during the selection window or the next consecutive SL DRX activation time after the start of the selection window.
- a resource selection apparatus configured in a first terminal device, the first terminal device sends side link data to a second terminal device, and the second terminal device is configured with For discontinuous reception, the resource selection device includes:
- a selection unit that selects a transmission resource for transmitting side link data from the subset of candidate resources
- the selection unit first selects one transmission resource in the candidate resource subset, and the one transmission resource is between the selection window of the first terminal device and the continuous SL of the second terminal device during the selection window. Select from the candidate resources of the time period in which the DRX activation time overlaps;
- the selection unit selects the remaining transmission resources from the candidate resources in the candidate resource subset except for the predetermined time unit of the selection window of the first terminal device, where the predetermined time unit refers to the first The first time slot during the selection window of a terminal device that overlaps with the continuous SL DRX activation time of the second terminal device where the first selected transmission resource is located.
- One of the beneficial effects of the embodiments of the present application is that: through the enhanced resource selection mechanism of the sending device, it is ensured that the sending device can send data packets during the activation period of the SL DRX of the receiving device when the receiving device is configured with SL DRX , to avoid the situation that the data packet cannot be received and decoded due to the inactive state of the receiving device, thereby ensuring the reliability of the data packet transmission.
- Fig. 1 is a schematic diagram of data packet loss when the receiving device is configured with SL DRX;
- Fig. 2 is a schematic diagram of reliability degradation when the receiving device is configured with SL DRX;
- FIG. 3 is a schematic diagram of an application scenario of an embodiment of the present application.
- FIG. 4 is a schematic diagram of unnecessary power consumption caused by sending resource restrictions during the operation of OnDurationTimer
- FIG. 5 is a schematic diagram of a resource selection method according to an embodiment of the present application.
- FIG. 6 is a schematic diagram of an example of a first candidate resource set and a second candidate resource set
- FIG. 7 is a schematic diagram of another example of a first candidate resource set and a second candidate resource set
- FIG. 8 is a schematic diagram of an example of partial perception
- FIG. 9 is a schematic diagram of a resource selection method according to an embodiment of the present application.
- Figure 10 is a schematic diagram of the location of excluded resources
- Fig. 11 is the schematic diagram after the starting position of the selection window of the first terminal device is postponed
- FIG. 12 is a schematic diagram of a situation in which the continuous SL DRX activation time of the receiving device overlaps with the selection window of the transmitting device;
- 13 is a schematic diagram of another situation in which the continuous SL DRX activation time of the receiving device overlaps with the selection window of the transmitting device;
- FIG. 14 is a schematic diagram of a resource selection method according to an embodiment of the present application.
- 15 is a schematic diagram of an example of resource selection performed by a sending device according to the method of an embodiment of the present application.
- 16 is a schematic diagram of a data sending method according to an embodiment of the present application.
- FIG. 17 is a schematic diagram of a resource selection apparatus according to an embodiment of the present application.
- FIG. 18 is another schematic diagram of a resource selection apparatus according to an embodiment of the present application.
- FIG. 19 is another schematic diagram of a resource selection apparatus according to an embodiment of the present application.
- FIG. 20 is a schematic diagram of a data sending apparatus according to an embodiment of the present application.
- FIG. 21 is a schematic diagram of a terminal device according to an embodiment of the present application.
- the terms “first”, “second”, etc. are used to distinguish different elements in terms of numelation, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be referred to by these terms restricted.
- the term “and/or” includes any and all combinations of one or more of the associated listed items.
- the terms “comprising”, “including”, “having”, etc. refer to the presence of stated features, elements, elements or components, but do not preclude the presence or addition of one or more other features, elements, elements or components.
- the term "communication network” or “wireless communication network” may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Long Term Evolution Enhanced (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access) and so on.
- LTE Long Term Evolution
- LTE-A Long Term Evolution Enhanced
- WCDMA Wideband Code Division Multiple Access
- High-Speed Packet Access High-Speed Packet Access
- HSPA High-Speed Packet Access
- the communication between devices in the communication system can be carried out according to communication protocols at any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G , New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
- Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
- Network devices may include but are not limited to the following devices: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobility management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller) and so on.
- the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include a remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low power node (eg femeto, pico, etc.).
- RRH Remote Radio Head
- RRU Remote Radio Unit
- relay relay
- low power node eg femeto, pico, etc.
- base station may include some or all of their functions, each base station may provide communication coverage for a particular geographic area.
- the term "cell” may refer to a base station and/or its coverage area, depending on the context in which the term is used.
- the term "User Equipment” (UE, User Equipment) or “Terminal Equipment” (TE, Terminal Equipment or Terminal Device), for example, refers to a device that accesses a communication network through a network device and receives network services.
- a terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and the like.
- the terminal device may include but is not limited to the following devices: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine type communication device, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.
- Cellular Phone Cellular Phone
- PDA Personal Digital Assistant
- wireless modem wireless communication device
- handheld device machine type communication device
- laptop computer Cordless phones, smartphones, smart watches, digital cameras, and more.
- the terminal device may also be a machine or device that performs monitoring or measurement, such as but not limited to: Machine Type Communication (MTC, Machine Type Communication) terminals, In-vehicle communication terminals, device-to-device (D2D, Device to Device) terminals, machine-to-machine (M2M, Machine to Machine) terminals, etc.
- MTC Machine Type Communication
- D2D Device to Device
- M2M Machine to Machine
- network side refers to one side of the network, which may be a certain base station, and may also include one or more network devices as described above.
- user side or “terminal side” or “terminal device side” refers to the side of a user or terminal, which may be a certain UE, or may include one or more terminal devices as above.
- equipment may refer to network equipment or terminal equipment.
- FIG. 3 is a schematic diagram of an application scenario of an embodiment of the present application.
- the sending device (Tx UE) works in mode 2
- the receiving device (Rx UE) is configured with SL DRX
- the sending device Send data packets to the receiving device by unicast.
- FIG. 3 takes a unicast (unicast) scene as an example, but the present application is not limited thereto, and the embodiments of the present application may also be applied to a groupcast (groupcast) scene or a broadcast (broadcast) scene.
- groupcast groupcast
- broadcast broadcast
- RAN2 Radio Access Network Group 2 112-e conference
- timers such as drx-OnDurationTimer, drx-InactivityTimer, drx-HARQ-RTT-Timer and drx-RetransmissionTimer.
- FIG. 4 is a schematic diagram of unnecessary power consumption caused by sending resource limitation during the operation of OnDurationTimer.
- the sending device may only need to ensure that the first transmission (or the first few transmissions) runs in the semi-static period of the receiving device drx
- the drx-RetransmissionTimer that the receiving device can reserve according to the instruction of the SCI or dynamically activated is in the SL DRX activation state for the remaining times of transmission during the running period of -OnDurationTimer.
- This method can not only ensure the correct reception and decoding of the data packet by the receiving device, but not significantly reduce the reliability, and will not generate too much extra power consumption.
- the existing resource selection process needs to be enhanced on the sending device side to ensure that the selected resources meet the requirements.
- the resource selection process is jointly completed by the physical layer and the MAC layer, wherein the physical layer of the terminal device can first generate a candidate resource set, and then exclude a part of the resource that cannot be used for the edge.
- the candidate resources for link transmission obtain a candidate resource subset
- the candidate resource subset includes the candidate resources in the above candidate resource set that can be used for side link data transmission
- the physical layer of the terminal device reports the candidate resource subset to the MAC (Media Access Control) layer
- the MAC layer selects resources from the reported candidate resource subset for sending side link data.
- the specific process please refer to Section 8.1.4 of the 3GPP technical specification TS38.214-g40.
- This embodiment of the present application provides a resource selection method, which is described from the side of the first terminal device.
- the first terminal device can send side link data to the second terminal device
- the second terminal device is configured with SL DRX.
- the SL DRX configuration may be configured by the network device for the second terminal device, may also be pre-configured, may also be configured by the first terminal device for the second terminal device, or may be configured by the second terminal device according to its own
- the power saving requirement is configured by itself, and the present application is not limited to this.
- the first terminal device in this embodiment of the present application is a transmitting device
- the second terminal device is a receiving device.
- FIG. 5 is a schematic diagram of a resource selection method according to an embodiment of the present application. As shown in FIG. 5 , the method includes:
- the first terminal device generates a first candidate resource set and a second candidate resource set, where the first candidate resource set is a selection window of the first terminal device and a selection window of the second terminal device in the selection window.
- the first terminal device determines, respectively, candidate resources in the first candidate resource set that can be used for side link data transmission and candidate resources that can be used for side link data transmission in the second candidate resource set, to obtain the first candidate resource. a subset of candidate resources and a second subset of candidate resources;
- the first terminal device selects a resource for transmitting a first predetermined number of times of transmission of side link data in the first candidate resource subset, and selects a resource for transmitting an edge in the second candidate resource subset Resource for the remaining number of transmissions of link data.
- FIG. 5 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto.
- the execution order of the various operations can be adjusted appropriately, and other operations can be added or some of the operations can be reduced.
- Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 5 .
- the physical layer only generates a candidate resource set SA and reports a candidate resource subset in SA to the MAC layer for resource selection.
- the physical layer generates two candidate resources independently. Sets, namely the first candidate resource set S A1 and the second candidate resource set S A2 , from which candidate resources that can be used for side link data transmission are determined, two candidate resource subsets are obtained, and they are respectively reported to the MAC layer.
- the MAC layer must have enough candidate resources in the subset of candidate resources corresponding to S A1 for random selection, and it can be ensured as much as possible that the transmission resources selected by the transmitting device for initial transmission and the SL of the receiving device are guaranteed.
- the activation time of DRX overlaps and can minimize the power consumption of the receiving device.
- the retransmission mode of the first terminal device is blind retransmission; the retransmission mode in the remaining time is based on HARQ-ACK retransmission.
- the sending resources used by the first terminal within the continuous activation time of the SL DRX activation time of the second terminal device include but are not limited to resources selected from the first candidate resource subset.
- the continuous SL DRX activation time of the second terminal device during the selection window of the first terminal device is at least one continuous time slot, and the continuous at least one time slot may be the second time slot.
- It can also be the running period of the discontinuous reception retransmission timer (drx-RetransmissionTimer) on the side link of the second terminal device; or one of the timers on the above three side links or A combination of running periods of timers on multiple side links. That is, the above-mentioned activation time of the second terminal device during the selection window of the first terminal device may be the running time of one or more of the above-mentioned timers on the three sidelinks.
- the selection window of the first terminal device overlaps with a continuous SL DRX activation time of the second terminal device during the selection window, and the first candidate resource set is the sum of all candidate resources in the above-mentioned overlapping time period. gather.
- the selection window of the first terminal device and the second terminal device overlap more than one consecutive SL DRX activation time during the selection window
- the first candidate resource set is the selection window of the first terminal device and the first terminal device.
- each continuous SL DRX activation time of the second terminal device in the selection window of the first terminal device may be defined as a sub-selection window, that is, the sub-selection window refers to the selection of the first terminal device.
- the first candidate resource set may be the set of all candidate resources in the first sub-selection window in the selection window of the first terminal device; it may also be all candidate resources in all sub-selection windows in the selection window of the first terminal device A collection of resources.
- the second candidate resource set may be the set of candidate resources remaining after the first candidate resource set is removed from the selection window of the first terminal device; it may also be the set of candidate resources of the first terminal device.
- the above-mentioned predetermined time unit refers to the first time slot in which the selection window of the first terminal device overlaps with the first time slot of the second terminal device during the selection window period or the next continuous SL DRX activation time after the selection window starts.
- the first candidate resource set (S A1 ) is the selection window of the first terminal device (n+T1 ⁇ n+T2, where n is the resource notified by the upper layer of the first terminal device to the physical layer)
- S A2 is the first terminal
- the set of remaining candidate resources after the candidate resources before the predetermined time unit are removed from the selection window of the device.
- the predetermined time unit is the first consecutive time between the selection window of the first terminal device and the second terminal device during the selection window.
- SL DRX activation time overlaps the first slot.
- FIG. 7 is a schematic diagram of another example of a first candidate resource set and a second candidate resource set.
- each continuous SL DRX activation time of the second terminal device in the selection window of the first terminal device is defined as a sub-selection window
- the first candidate resource The set (S A1 ) is the set of all candidate resources in the first sub-selection window (sub-selection window 1) in the selection window of the first terminal device
- the second candidate resource set (S A2 ) is the selection of the first terminal device
- the upper layer of the first terminal device may notify the physical layer of the parameters used to generate the above two candidate resource sets, and the above parameters notified to the physical layer by the upper layer of the first terminal device may be Notifications are made for generating the above two candidate resource sets respectively, and the values of the above parameters can be configured separately and are not equal.
- the physical layer can use different parameters notified by the higher layer to generate the above two candidate resource sets respectively.
- the physical layer of the first terminal device receives the transmission parameters for the first candidate resource set and the transmission parameters for the second candidate resource set notified by the upper layer of the first terminal device, wherein the transmission parameters for the first candidate resource set are in The value of the transmission priority (prio TX ) is smaller than the value of the transmission priority in the transmission parameters for the second candidate resource set, the smaller the priority value, the higher the priority, and/or the first candidate resource set
- the two candidate resource sets independently perform resource exclusion (that is, determine the two candidate resource sets respectively).
- the candidate resources in the set that can be used for side link data transmission) to obtain two candidate resource subsets, namely the first candidate resource subset and the second candidate resource subset, and the parameters for resource exclusion of the two candidate resource sets can be The same or different.
- the resource exclusion method of both candidate resource sets may refer to section 8.1.4 of the G40 version of 3GPP's technical specification TS 38.213 until both candidate resource sets satisfy section 8.1.4 of TS 38.213 conditions regarding remaining resources. So far, the physical layer of the first terminal device can report the two candidate resource subsets obtained after resource exclusion to a higher layer (MAC layer).
- MAC layer MAC layer
- the resource exclusion method of the second candidate resource set may refer to Section 8.1.4 of TS 38.213, and the resource exclusion method of the first candidate resource set may be different from the resource exclusion method of the second candidate resource set parameter.
- RSRP Reference Signal Received Power
- the RSRP threshold can be offset by -3dB or -ndB compared with the threshold used by S A2 , which has the advantage of increasing the reliability of initial transmission to a certain extent.
- performing resource exclusion on the first candidate resource set uses a transmission priority value smaller than that used for the first candidate resource set.
- the second candidate resource set performs resource exclusion (ie, determines the candidate resources in the second candidate resource set that can be used for sidelink data transmission, and obtains the value of the transmission priority used by the second candidate resource subset).
- the sending priority prio TX value of S A1 is smaller than the actual sending priority, that is, compared with the sending priority used by S A2 as the actual sending priority of the MAC notification, the priority value of S A1 is smaller, representing the priority higher.
- the reporting ratio (X%) for the first candidate resource set with the same priority is greater than the value corresponding to the second candidate resource set.
- the upper layer of the first terminal device may select the subset of the first candidate resource set (the first candidate resource subset) selects resources for transmitting a certain number of times (the first predetermined number of times) of transmission of side link data from the The remaining number of transmissions of the resource.
- the remaining number of times refers to the target number of times minus the above-mentioned first predetermined number of times.
- the target number of times is determined by the MAC layer according to the parameter range configured by the RRC and the channel congestion level (CBR) of the current resource pool.
- the number of transmission resources selected by the first terminal device in the first candidate resource subset may be predefined, or may be determined by the total number of selected transmission times and/or corresponding to the transport block (TB).
- the time length of the second terminal device in the PDB in the SL DRX activation time or the ratio of the total length occupied by the time length can also be determined by considering the data packet priority and/or the measured channel busy rate (CBR) result, wherein, The higher the packet priority is, the more resources need to be selected in the subset of the first candidate resource set (the first candidate resource subset), and the more times of sending; the larger the CBR, the more resources need to be selected in the first candidate resource set.
- CBR channel busy rate
- the number of transmission resources selected by the first terminal device in the first candidate resource subset may be determined according to at least one of the above factors, or may be determined according to other factors or in combination with other factors. There is no restriction on this.
- the total number of sending times can be compared with the activation time length or the ratio of the activation time to obtain the corresponding times of sending using the resources included in the first candidate set subset by looking up the table, that is, the value of the total number of sending times and the length of each activation time or
- the activation time ratio corresponds to a value of the number of times of sending using the resources contained in the first candidate set subset.
- the upper layer of the first terminal device may also notify its physical layer of a parameter indicating the SLDRX configuration of the second terminal device, the parameter may be one or more, and the parameter may be Indicates, or to a certain extent, indicates the SLDRX configuration of the second terminal device.
- the physical layer of the first terminal device receives the parameters notified by the upper layer of the first terminal device and used to indicate the side link discontinuous reception configuration of the second terminal device.
- the parameter may include the running period, offset and size of the drx-OnDurationTimer (discontinuous reception duration timer) on the side link and the drx-InactivityTimer (discontinuous reception inactivity timer) on the side link timer), drx-HARQ-RTT-Timer (discontinuous reception hybrid automatic retransmission round-trip time timer) on the side link, and timers such as drx-RetransmissionTimer (discontinuous reception retransmission timer) on the side link size; alternatively, this parameter may also only contain the relevant information (running period, offset and size, etc.) of the drx-OnDurationTimer on the side link.
- the parameter may include any combination of the above-mentioned timer related information on the side link.
- the timer on the above-mentioned side link may be configured for unicast (Unicast), that is, dedicated to unicast, including the running period, size and offset; and/or, the above-mentioned side chain
- the timer on the road can also be a configured common timer, that is, the configuration of the timer on the side link is common regardless of whether it is unicast, multicast or broadcast. .
- the upper layer of the first terminal device may also send indication information to the physical layer for indicating the type of the second terminal device, and/or send an indication to the physical layer to indicate the transmission type of the current service information.
- the physical layer of the first terminal device receives the indication information sent by the upper layer of the first terminal device and used to indicate the device type of the second terminal device, and/or used to indicate the transmission type (cast type) of the current service. type) indication information.
- the above-mentioned device type is, for example, a V-UE or a P-UE, that is, whether the second terminal device is a V-UE or a P-UE is indicated by the above-mentioned indication information for indicating the device type of the second terminal device.
- the above-mentioned transmission type is, for example, unicast (unicast), multicast (groupcast) or broadcast (broadcast), that is, through the above-mentioned indication information for indicating the transmission type of the current service, to indicate that the transmission type of the current service is unicast, group Broadcast or broadcast.
- the aforementioned overlap refers to the above-mentioned continuous SL DRX activation time and the first terminal device in the selection window of the first terminal device.
- FIG. 8 is a schematic diagram of an example of partial sensing. As shown in FIG. 8 , if the first terminal device is configured with partial sensing, only the sensing window can be selected in the selection window. The slot corresponding to the time slot (slot) that has been sensed is used as the time slot where the candidate resource is located.
- the above-mentioned resource selection process only limits the resource selection of initial transmission and retransmission in the first period;
- the initial transmission and retransmission are limited.
- the initial transmission and retransmission of the subsequent period may be reserved through the SCI indication.
- This embodiment of the present application provides a resource selection method, which is described from the side of the first terminal device.
- the first terminal device can send side link data to the second terminal device, and the second terminal device is configured with SL DRX.
- the SL DRX configuration may be configured by the network device for the second terminal device, or may be pre-configured, or may be configured by the first terminal device for the second terminal device, or may be configured by the second terminal device according to its own province.
- the electrical demand is configured for itself.
- the first terminal device in this embodiment of the present application is a transmitting device
- the second terminal device is a receiving device.
- the embodiments of the second aspect may be combined with the embodiments of the first aspect, or may be implemented independently.
- the same content as the embodiment of the first aspect will not be repeated.
- FIG. 9 is a schematic diagram of a resource selection method according to an embodiment of the present application. As shown in FIG. 9 , the method includes:
- the first terminal device generates a third candidate resource set
- the first terminal device determines candidate resources in the third candidate resource set that can be used for sidelink data transmission to obtain a third candidate resource subset
- the first terminal device selects a resource for sending side link data from the third candidate resource subset
- the third candidate resource subset includes candidate resources except all candidate resources before a predetermined time unit within the selection window of the first terminal device, where the predetermined time unit refers to the The selection window overlaps with the first time slot of the second terminal device during the selection window or the next consecutive SL DRX activation time after the start of the selection window.
- FIG. 9 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto.
- the execution order of the various operations can be adjusted appropriately, and other operations can be added or some of the operations can be reduced.
- Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 9 .
- all the selection windows of the sending device and the first time slot before the start time of the first or next continuous SL DRX activation time of the receiving device during this period overlap.
- Candidate resources are excluded, thereby restricting the sending device from selecting resources before the first time slot in which the selection window of the sending device overlaps with the next consecutive SL DRX activation time of the receiving device, because such a resource is not compatible with the receiving device.
- the retransmission mode of the first terminal device is blind retransmission; the retransmission mode in the remaining time is based on HARQ-ACK retransmission.
- the sending resources used by the first terminal device within the continuous activation time of the second terminal device's SL DRX activation time include but are not limited to resources selected from a subset of available candidate resources in the first candidate candidate resource set.
- the above-mentioned third candidate resource set or the third candidate resource subset may not include the above-mentioned resources by means of resource exclusion (in the selection window of the first terminal device, the selection window of the first terminal device and the second All candidate resources before the first time slot of the terminal equipment during the selection window period or the next consecutive SL DRX activation time overlapping after the selection window starts), that is, in the selection window of the transmitting equipment, All candidate resources before the start time of the first time slot in which the selection window of the transmitting device and the receiving device overlap the first or next consecutive SL DRX activation time during this period need to be excluded.
- Figure 10 shows the location of this portion of excluded resources.
- the above-mentioned resources may be excluded when generating the above-mentioned third candidate resource set (operation 901), that is, the third candidate resource set generated by the first terminal device does not include the above-mentioned candidate resources;
- Three candidate resource subsets are excluded (operation 902), that is, the first terminal device excludes all candidate resources before the predetermined time unit from the third candidate resource set or third candidate resource subset. This application does not limit this.
- the above-mentioned third candidate resource set or the third candidate resource subset may not include the above-mentioned resources by means of delaying the start time of the selection window of the first terminal equipment (in the selection window of the first terminal equipment, The selection window of the first terminal device overlaps with all candidate resources of the second terminal device before the first time slot during the selection window or the next consecutive SL DRX activation time after the start of the selection window), also That is, the first terminal device delays the time domain position of the start time of the selection window to the start time of the above-mentioned predetermined time unit (that is, the selection window of the first terminal device and the first terminal device of the second terminal device during the selection window). or the next consecutive SL DRX activation time after the start of this selection window overlaps the first slot).
- the physical layer of the first terminal device delays the start time T1 of the selection window of the first terminal device, and the specific time domain position of the delay is the time interval between the selection window of the first terminal device and the second terminal device during the selection window.
- Fig. 11 shows the situation after the start position of the selection window of the first terminal device is delayed. As shown in Fig. 11 , the start position of the above selection window is delayed from T1 to T1'.
- control of the start time of the selection window may also be implemented through the MAC layer of the first terminal device.
- the upper layer of the first terminal device to the physical layer of the first terminal device will target the above third candidate resource set
- the notification of the resource selection related parameters is delayed to a predefined time before the first time slot of the next continuous SL DRX activation time of the second terminal device at the current time.
- the predefined time is T1 or
- the first time slot in which the selection window of the first terminal device and the second terminal device overlap with the next continuous SL DRX activation time after the selection window starts is taken as the aforementioned predetermined time unit. That is, if the number of time slots of the first continuous SL DRX activation time that overlaps with the selection window is less than the predetermined threshold, then the selection window of the first terminal device overlaps with the first continuous SL DRX activation time.
- FIG. 12 is a schematic diagram of a situation in which the continuous SL DRX activation time of the receiving device overlaps with the selection window of the transmitting device. As shown in FIG. 12 , due to the overlapping time of the first continuous SL DRX activation time overlapping with the selection window If the number of slots is less than the predetermined threshold, the candidate resources before the first time slot of the second consecutive SL DRX activation time overlapping the selection window are excluded from the third candidate resource set or the third candidate resource subset.
- Figure 13 is a schematic diagram of another situation in which the continuous SL DRX activation time of the receiving device overlaps with the selection window of the transmitting device. As shown in Figure 13, due to the overlapping of the first continuous SL DRX activation time overlapping with the selection window If the number of time slots is less than the predetermined threshold, then the start time of the selection window is postponed to T1', thereby excluding the candidate resources before the first time slot of the second consecutive SL DRX activation time that overlaps with the original selection window.
- the continuous SL DRX activation time of the second terminal device during the selection window of the first terminal device is at least one continuous time slot, the continuous at least one time slot It can be the running period of the discontinuous reception duration timer (drx-OnDurationTimer) on the side link of the second terminal device; it can also be the discontinuous reception inactive timer on the side link of the second terminal device
- the running period of (drx-InactivityTimer) it can also be the running period of the discontinuous reception retransmission timer (drx-RetransmissionTimer) on the side link of the second terminal device; or the timing on the above three side links
- the above-mentioned activation time of the second terminal device during the selection window of the first terminal device may be the running time of one or more of the above-mentioned timers on the three sidelinks.
- the timer on the above-mentioned side link may be configured for unicast (Unicast), that is, dedicated to unicast, including the running period, size and offset. and/or, the timer on the above-mentioned side link may also be a timer on a configured common (common) side link, that is, whether it is a unicast sending method, a multicast sending method or a broadcast sending method, The configuration of the timers on this side link is all common.
- Unicast unicast
- the timer on the above-mentioned side link may also be a timer on a configured common (common) side link, that is, whether it is a unicast sending method, a multicast sending method or a broadcast sending method, The configuration of the timers on this side link is all common.
- the aforementioned overlap refers to the above-mentioned continuous SL DRX activation time and the first The overlap of the set of candidate time slots selected by the physical layer of the first terminal device in the selection window of the terminal device.
- the candidate resources that it can select are limited to the set of candidate time slots selected by the physical layer in the selection window of the first terminal device.
- the sending device is restricted from selecting resources before the first time slot in which the selection window of the sending device and the next continuous SL DRX activation time of the receiving device overlap.
- This embodiment of the present application provides a resource selection method, which is described from the side of the first terminal device.
- the first terminal device can send side link data to the second terminal device, and the second terminal device is configured with SL DRX.
- the SL DRX configuration may be configured by the network device for the second terminal device, may also be pre-configured, may also be configured by the first terminal device for the second terminal device, or may be configured by the second terminal device according to its own
- the power saving requirement is configured by itself, and the present application is not limited to this.
- the first terminal device in this embodiment of the present application is a transmitting device
- the second terminal device is a receiving device.
- the embodiments of the third aspect may be combined with the embodiments of the first aspect, or may be implemented independently.
- the same content as the embodiment of the first aspect will not be repeated.
- FIG. 14 is a schematic diagram of a resource selection method according to an embodiment of the present application. As shown in FIG. 14 , the method includes:
- the first terminal device selects a sending resource for sending side link data from a subset of candidate resources,
- the first terminal device first selects one transmission resource from the candidate resource subset, and the one transmission resource is in the selection window of the first terminal device and the second terminal device during the continuous SL of the selection window Select from the candidate resources of the time period in which the DRX activation time overlaps;
- the first terminal device selects the remaining transmission resources from the candidate resources in the candidate resource subset except the predetermined time unit of the selection window of the first terminal device, where the predetermined time unit refers to the The first time slot that overlaps with the continuous SL DRX activation time of the second terminal device where the first selected transmission resource is located during the selection window of the first terminal device.
- the MAC layer of the sending device when the selection window of the sending device overlaps with more than one continuous SL DRX activation time of the receiving device, the MAC layer of the sending device is in the candidate resource subset reported by the physical layer, first in the selection window of the sending device Select a candidate resource in the time period overlapping the continuous SL DRX activation time of the receiving device during this period; then, select a transmitting resource for the remaining number of transmissions, but the selected transmitting resource cannot be in the selection window of the transmitting device and the receiving device. Before the first slot of this period that overlaps with the consecutive SL DRX activation time in which the first selected transmit resource is located.
- the transmitting device is restricted from selecting a resource before the first time slot of the next consecutive SL DRX activation time of the receiving device.
- the retransmission mode of the first terminal device is blind retransmission; the retransmission mode in the remaining time is based on HARQ-ACK retransmission.
- the sending resources used by the first terminal device within the continuous activation time of the SL DRX activation time of the second terminal device include but are not limited to resources selected from a subset of available candidate resources in the first candidate candidate resource set.
- Fig. 15 is a schematic diagram of an example of resource selection performed by the sending device according to the method of the embodiment of the present application.
- the sending device selects the first sending resource at the continuous SL DRX activation time overlapping the selection window of the receiving device , and then select the transmission resources of other transmission times from the candidate resources except the resources before the first time slot of the continuous SL DRX activation time, thereby avoiding the selection of transmission resources before the activation of the receiving device.
- the above-mentioned candidate resource subset includes a first candidate resource subset and a second candidate resource subset;
- the first candidate resource subset is a subset of candidate resources available for side link data transmission in the first candidate resource set Set
- the first candidate resource set is the set of all candidate resources in the time period in which the selection window of the first terminal device and the second terminal device overlap at least one continuous SL DRX activation time during the selection window
- the second candidate resource sub-set The set is the set of candidate resources that can be used for side link data transmission in the second candidate resource set.
- the second candidate resource set is the remaining candidate resources after the candidate resources before the predetermined time unit are removed from the selection window of the first terminal device.
- the set of the predetermined time unit refers to, the selection window of the first terminal equipment and the second terminal equipment during the selection window first or the next continuous SL DRX activation time after the selection window starts overlapping the first one time slot; then the first terminal device selects the foregoing one transmission resource in the first candidate resource subset, and selects the foregoing remaining transmission resources in the second candidate resource subset.
- the physical layer reports a subset of two candidate resource sets (the first candidate resource subset and the second candidate resource subset), and the first candidate resource subset corresponds to all more than one continuous SL DRX activation time of the receiving UE that overlaps with the selection window of the transmitting device), at this time, the above-mentioned one is selected in the first candidate resource subset
- resources corresponding to the remaining number of times of transmission are selected from the second candidate resource subset.
- the first terminal device selects the above-mentioned one transmission resource from the candidate resources of the time period in which the selection window of the first terminal device and the second terminal device overlap with the first consecutive SL DRX activation time during the selection window. If the above-mentioned candidate resources are not included in the above-mentioned candidate resource set, then the first terminal equipment is a candidate for a time period in which the selection window of the first terminal equipment and the second terminal equipment overlap with the next continuous SL DRX activation time during this selection window. Among the resources, one of the above sending resources is selected until the one sending resource is selected.
- the MAC layer of the sending device can preferentially select the candidate resources in the time period in which the selection window of the sending device and the first continuous SL DRX activation time of the receiving device overlap during this period; If such a candidate resource is included, the transmitting device selects the candidate resource in the time period overlapping with the activation time of the second consecutive SL DRX, and so on.
- the selection window of the first terminal device is the same as that of the second terminal device during the selection window or the next continuous SL DRX after the selection window starts The number of timeslots whose activation time overlaps is less than the predetermined threshold, then the first time slot that overlaps the next continuous SL DRX activation time between the selection window of the first terminal device and the second terminal device after the selection window starts as the aforementioned Predetermined time unit. If the number of time slots of the next consecutive SLDRX activation time that overlaps with the selection window is still less than the aforementioned predetermined threshold, the above operation is continued until the number of overlapping time slots is greater than or equal to the predetermined threshold.
- the above-mentioned one transmission resource may be a resource used for the initial transmission of side link data, but the present application is not limited to this. As shown in FIG. 15 , the above-mentioned one transmission resource may not be the above-mentioned side link data The resources used for the initial transmission.
- the continuous SL DRX activation time of the second terminal device during the selection window of the first terminal device is at least one continuous time slot, the continuous at least one time slot It can be the running period of the discontinuous reception duration timer (drx-OnDurationTimer) on the side link of the second terminal device; it can also be the discontinuous reception inactive timer on the side link of the second terminal device
- the running period of (drx-InactivityTimer) it can also be the running period of the discontinuous reception retransmission timer (drx-RetransmissionTimer) on the side link of the second terminal device; or the timing on the above three side links
- the above-mentioned activation time of the second terminal device during the selection window of the first terminal device may be the running time of one or more of the above-mentioned timers on the three sidelinks. It is worth noting that the names of the above timers are only examples, which are not limited in this application, and other names may also be used for the timers on the above three side links.
- the timer on the above-mentioned side link may be configured for unicast (Unicast), that is, dedicated to unicast, including the running period, size and offset. and/or, the timer on the above-mentioned side link may also be a timer on a configured common (common) side link, that is, whether it is a unicast sending method, a multicast sending method or a broadcast sending method, The configuration of the timers on this side link is all common.
- Unicast unicast
- the timer on the above-mentioned side link may also be a timer on a configured common (common) side link, that is, whether it is a unicast sending method, a multicast sending method or a broadcast sending method, The configuration of the timers on this side link is all common.
- the aforementioned overlap refers to the above-mentioned continuous SL DRX activation time and the first The overlap of the set of candidate time slots selected by the physical layer of the first terminal device in the selection window of the terminal device.
- the candidate resources that it can select are limited to the candidate resource set in the candidate time slot selected by the physical layer in the selection window of the first terminal device.
- the sending device is restricted from selecting resources before the first time slot in which the selection window of the sending device and the next continuous SL DRX activation time of the receiving device overlap.
- An embodiment of the present application provides a data sending method, which is described from the side of the second terminal device.
- the first terminal device can send side link data to the second terminal device
- the second terminal device is configured with SL DRX.
- the SL DRX configuration may be configured by the network device for the second terminal device, may also be pre-configured, may also be configured by the first terminal device for the second terminal device, or may be configured by the second terminal device according to its own
- the power saving requirement is configured by itself, and the present application is not limited to this.
- the first terminal device in this embodiment of the present application is a transmitting device
- the second terminal device is a receiving device.
- the embodiment of the fourth aspect is the processing on the second terminal device side corresponding to the embodiment of the first aspect to the third aspect, wherein the same content as the embodiment of the first aspect to the third aspect will not be repeated.
- FIG. 16 is a schematic diagram of a data sending method according to an embodiment of the present application. As shown in FIG. 16 , the method includes:
- the second terminal device receives the side link data sent by the first terminal device during continuous SLDRX activation time;
- the second terminal device is in an active state for a time slot during which the first terminal device performs the next retransmission of the side link data.
- the receiving device when the receiving device receives the first PSSCH transmission from the transmitting device during its continuous SL DRX activation time, through the indication in the corresponding PSCCH, or the timer on the side link triggered by the PSCCH, the receiving device
- the time slot that can perform the next retransmission in the sending device is in the "Active time”
- the subsequent retransmission can be indicated by the PSCCH corresponding to the next retransmission, or trigger the timer on the running side link to ensure that the receiving device is in the active time. "Active time”, and so on.
- the embodiment of the present application ensures that when the receiving device is configured with SL DRX, the sending device can send data packets during the continuous SL DRX activation time of the receiving device, avoiding the situation that the receiving device is in "" The situation that the data packet cannot be received and decoded due to the non-Active” state occurs, which can ensure the reliability of the data packet transmission.
- Embodiments of the present application provide a resource selection apparatus.
- FIG. 17 is a schematic diagram of a resource selection apparatus according to an embodiment of the present application.
- the apparatus may be, for example, a terminal device (eg, the aforementioned first terminal device), or one or some components or components configured in the terminal device, and the same content as the embodiment of the first aspect will not be repeated.
- the resource selection apparatus 1700 includes: a generation unit 1701 , a determination unit 1702 and a selection unit 1703 .
- the generating unit 1701 generates a first candidate resource set and a second candidate resource set, where the first candidate resource set is the selection window of the first terminal device and the second terminal device in the selection window The set of all candidate resources in the time period in which at least one consecutive SL DRX activation time overlaps during the window; the determining unit 1702 respectively determines the candidate resources and the second candidate resources that can be used for side link data transmission in the first candidate resource set From the candidate resources in the resource set that can be used for sending side link data, a first candidate resource subset and a second candidate resource subset are obtained; the selecting unit 1703 selects the first candidate resource subset for sending side link data. resources for a first predetermined number of transmissions, and selecting resources from the second subset of candidate resources for transmitting the remaining number of transmissions of sidelink data.
- the consecutive SL DRX activation times of the second terminal device during the selection window are consecutive at least one time slot, and the consecutive at least one time slot is at least one of the following:
- the running period of the discontinuous reception retransmission timer (drx-RetransmissionTimer) on the side link of the second terminal device is not limited.
- the first candidate resource set is one of the following:
- the selection window of the first terminal device overlaps with the second terminal device in the first time period during the selection window or the next consecutive SLDRX activation time after the selection window starts. gather.
- the first candidate resource set is one of the following:
- the sub-selection window refers to the time period in which the selection window of the first terminal device and the continuous SL DRX activation time of the second terminal device during the selection window overlap.
- the second candidate resource set is one of the following:
- the set of candidate resources remaining after the first candidate resource set is removed from the selection window of the first terminal device
- the set of remaining candidate resources after the candidate resources before the predetermined time unit are removed from the selection window of the first terminal device
- the predetermined time unit refers to that the selection window of the first terminal device and the second terminal device are activated during the first selection window period or the next continuous SL DRX activation after the selection window starts.
- an RSRP threshold used for determining the first candidate resource subset is smaller than an RSRP threshold used for determining the second candidate resource subset; and/or, an RSRP threshold used for determining the first candidate resource subset
- the value of the transmission priority used is smaller than the value of the transmission priority used for determining the second candidate resource subset; and/or the reporting ratio for the first candidate resource set of the same priority is larger or smaller than the second candidate resource set corresponding value.
- the resource selection apparatus 1700 further includes:
- a first receiving unit 1704 which receives, at the physical layer of the first terminal device, the transmission parameters for the first candidate resource set and the transmission parameters for the second candidate resource set notified by a higher layer of the first terminal device parameter,
- the value of the transmission priority in the transmission parameter for the first candidate resource set is smaller than the value of the transmission priority in the transmission parameter for the second candidate resource set, and/or, for the first candidate resource set
- the number of subchannels used for transmission of side link data in one slot in the transmission parameters of the resource set is greater or less than the number of subchannels used for side link data in one slot in the transmission parameters for the second candidate resource set. The number of subchannels transmitted.
- the resource selection apparatus 1700 further includes:
- the second receiving unit 1705 is configured to receive, at the physical layer of the first terminal device, a parameter notified by a higher layer of the first terminal device and used to indicate the discontinuous reception configuration of the second terminal device, including at least one of the following :
- the operation of the timer on the side link is unicast-specific or public.
- the resource selection apparatus 1700 further includes:
- the third receiving unit 1706 is configured to receive, at the physical layer of the first terminal device, the indication information that is sent by the upper layer of the first terminal device and used to indicate the device type of the second terminal device, and/or is used for Indication information indicating the cast type (cast type) of the current service.
- the number of transmission resources selected by the selection unit 1703 in the first candidate resource subset is predefined, or determined by at least one of the following factors:
- the data packets of the side link data are priority
- CBR Channel Busy Ratio
- the first terminal device is configured with partial awareness, and the overlap refers to the difference between the continuous SL DRX activation time and the physical layer of the first terminal device in the selection window of the first terminal device. Overlap of selected candidate slot sets.
- FIG. 18 is another schematic diagram of a resource selection apparatus according to an embodiment of the present application.
- the apparatus may be, for example, a terminal device (eg, the aforementioned first terminal device), or one or some components or components configured in the terminal device, and the same content as the embodiment of the second aspect will not be repeated.
- the resource selection apparatus 1800 includes: a generating unit 1801 , a determining unit 1802 and a selecting unit 1803 .
- the generating unit 1801 generates a third candidate resource set; the determining unit 1802 determines the candidate resources in the third candidate resource set that can be used for side link data transmission; the selecting unit 1803 can be used for the side link in the third candidate resource set Selecting a resource for transmitting side link data from the candidate resources for data transmission to obtain a third candidate resource subset; wherein, the third candidate resource subset includes a predetermined time unit other than the selection window of the first terminal device Candidate resources other than all previous candidate resources, the predetermined time unit refers to the start of the selection window of the first terminal device and the first selection window of the second terminal device during the selection window or the selection window After the next consecutive SL DRX activation time overlaps the first slot.
- the third candidate resource set generated by the first terminal device does not include all candidate resources before the predetermined time unit, or the first terminal device does not include all candidate resources before the predetermined time unit Resource exclusion.
- the generating unit 1801 delays the temporal position of the start time of the selection window to the predetermined time unit.
- resource selection termination 1800 further includes:
- Sending unit 1804 which delays the notification of the resource selection-related parameters for the third candidate resource set to the physical layer of the first terminal device at the upper layer of the first terminal device until the second terminal device is currently A predefined time before the first slot of the next consecutive SL DRX activation time.
- the selection unit 1803 selects the first terminal device that overlaps the selection window of the first terminal device and the next continuous SL DRX activation time of the second terminal device after the start of the selection window.
- a time slot is used as the predetermined time unit.
- the consecutive SL DRX activation times of the second terminal device during the selection window are consecutive at least one time slot, and the consecutive at least one time slot is at least one of the following:
- the running period of the discontinuous reception retransmission timer (drx-RetransmissionTimer) on the side link of the second terminal device is not limited.
- the operation of the timer on the side link is unicast-specific or public.
- the first terminal device is configured with partial awareness, and the overlap refers to the difference between the continuous SL DRX activation time and the physical layer of the first terminal device in the selection window of the first terminal device. Overlap of candidate resource sets in selected candidate slots.
- FIG. 19 is another schematic diagram of a resource selection apparatus according to an embodiment of the present application.
- the apparatus may be, for example, a terminal device (eg, the aforementioned first terminal device), or may be one or some components or components configured in the terminal device, and the same content as the embodiment of the third aspect will not be repeated.
- the resource selection apparatus 1900 includes: a selection unit 1901, which selects a transmission resource for transmitting side link data from a subset of candidate resources, wherein the selection unit 1901 first selects from the subset of candidate resources a transmission resource selected among candidate resources for a time period in which the selection window of the first terminal device overlaps with the consecutive SL DRX activation times of the second terminal device during the selection window; and , the selection unit 1901 selects the remaining transmission resources from the candidate resources in the candidate resource subset except the predetermined time unit of the selection window of the first terminal device, where the predetermined time unit refers to the first The first time slot during the selection window of a terminal device that overlaps with the continuous SL DRX activation time of the second terminal device where the first-selected transmission resource is located.
- the candidate resource subset includes a first candidate resource subset and a second candidate resource subset
- the first candidate resource subset is a candidate in the first candidate set that can be used for sidelink data transmission
- the first candidate resource set is all candidate resources in the time period in which the selection window of the first terminal device and the second terminal device overlap with at least one consecutive SL DRX activation time during the selection window
- the second candidate resource subset is a set of candidate resources that can be used for side link data transmission in the second candidate resource set, and the second candidate resource set is the selection window of the first terminal device.
- the set of remaining candidate resources after the candidate resources before a predetermined time unit where the predetermined time unit refers to the first one between the selection window of the first terminal device and the selection window of the second terminal device during the selection window Or the first time slot where the next consecutive SLDRX activation times overlap after the selection window starts; the selection unit 1901 selects the one transmission resource in the first candidate resource subset, and selects the one transmission resource in the second candidate resource subset. The remaining transmission resources are selected from the resource subset.
- the selection unit 1901 selects the first terminal device that overlaps the selection window of the first terminal device and the next continuous SL DRX activation time of the second terminal device after the start of the selection window.
- a time slot is used as the predetermined time unit.
- the one transmission resource selected for the first time is a resource used for the initial transmission of the side link data, or the one transmission resource selected for the first time is not used for the initial transmission of the side link data resource.
- the selection unit 1901 selects candidate resources for a time period in which the selection window of the first terminal device overlaps with the first consecutive SL DRX activation times of the second terminal device during the selection window If the candidate resource set does not include the candidate resource, the selection unit 1901 selects the one transmission resource in the selection window of the first terminal device and the second terminal device in the selection window The one transmission resource is selected from the candidate resources of the time period in which the next consecutive SL DRX activation times overlap, until the one transmission resource is selected.
- the consecutive SL DRX activation times of the second terminal device during the selection window are consecutive at least one time slot, and the consecutive at least one time slot is at least one of the following:
- the running period of the discontinuous reception retransmission timer (drx-RetransmissionTimer) on the side link of the second terminal device is not limited.
- the operation of the timer on the side link is unicast-specific or public.
- the first terminal device is configured with partial awareness, and the overlap refers to the time between the continuous SL DRX activation time and the candidate time slot selected by the physical layer in the selection window of the first terminal device The overlap of candidate resource sets.
- the embodiments of the present application also provide a data sending apparatus.
- FIG. 20 is a schematic diagram of a data sending apparatus according to an embodiment of the present application.
- the apparatus may be, for example, a terminal device (eg, the aforementioned second terminal device), or one or some components or components configured in the terminal device, and the same content as the embodiment of the fourth aspect will not be repeated.
- the data sending apparatus 2000 includes: a receiving unit 2001, which receives the side link data sent by the first terminal equipment at the continuous SL DRX activation time of the second terminal equipment; wherein the second terminal equipment The terminal device is at the active time at the time slot in which the first terminal device performs the next retransmission of the side link data.
- the resource selection apparatus 1700/1800/1900 and the data transmission apparatus 2000 may further include other components or modules.
- the specific content of these components or modules reference may be made to the related art.
- FIG. 17 to FIG. 20 only exemplarily show the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used .
- the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
- the embodiment of the present application ensures that when the receiving device is configured with SL DRX, the sending device can send data packets during the continuous SL DRX activation time of the receiving device, avoiding the situation that the receiving device is in "" The situation that the data packet cannot be received and decoded due to the non-Active” state occurs, which can ensure the reliability of the data packet transmission.
- An embodiment of the present application further provides a communication system, and reference may be made to FIG. 3 , and the same content as the embodiments of the first aspect to the fifth aspect will not be repeated.
- the communication system may include at least a first terminal device and a second terminal device, the first terminal device sends sidelink data to the second terminal device, and the second terminal device is configured with SL DRX, where:
- the first terminal device generates a first candidate resource set and a second candidate resource set, and respectively determines the candidate resources in the first candidate resource set that can be used for side link data transmission and the second candidate resource set.
- candidate resources for sending side link data obtain a first candidate resource subset and a second candidate resource subset, and select a resource for sending a first predetermined number of transmissions of side link data from the first candidate resource subset , and select a resource for transmitting the remaining number of transmissions of side link data in the second candidate resource subset;
- the first candidate resource set is the selection window of the first terminal device and the second terminal A set of all candidate resources in a time period in which the device overlaps at least one consecutive SLDRX activation time during the selection window;
- the second terminal device receives the side link data at the configured continuous SL DRX activation time.
- the communication system may include at least a first terminal device and a second terminal device, the first terminal device sends sidelink data to the second terminal device, and the second terminal device is configured with SL DRX, where:
- the first terminal device generates a third candidate resource set, determines candidate resources in the third candidate resource set that can be used for side link data transmission, and obtains a third candidate resource subset, which is included in the third candidate resource subset Selecting resources for transmitting side link data; wherein the third candidate resource subset includes candidate resources except all candidate resources within a selection window of the first terminal device before a predetermined time unit, the predetermined time
- the unit refers to the first time that the selection window of the first terminal device and the second terminal device overlap the first one during the selection window or the next continuous SL DRX activation time after the selection window starts. time slot;
- the second terminal device receives the side link data at the configured continuous SL DRX activation time.
- the communication system may include at least a first terminal device and a second terminal device, the first terminal device sends sidelink data to the second terminal device, and the second terminal device is configured with SL DRX, where:
- the first terminal device selects a transmission resource for transmitting side link data in the candidate resource subset, wherein the first terminal device first selects a transmission resource in the candidate resource subset, and the one transmission resource is in the
- the selection window of the first terminal device and the second terminal device select among the candidate resources of the time period in which the consecutive SL DRX activation times during the selection window overlap; and, the first terminal device is in the above candidate resources.
- the remaining transmission resources are selected from the candidate resources before the predetermined time unit of the selection window of the first terminal device, where the predetermined time unit refers to the period between the selection window of the first terminal device and the first time slot where the continuous SL DRX activation time of the second terminal equipment where the first selected transmission resource is located overlaps;
- the second terminal device receives the side link data at the configured continuous SL DRX activation time.
- the second terminal device is in an active state at a time slot during which the first terminal device performs retransmission of the sidelink data.
- the embodiment of the present application also provides a terminal device, but the present application is not limited to this, and may also be other devices.
- FIG. 21 is a schematic diagram of a terminal device according to an embodiment of the present application.
- the terminal device 2100 may include a processor 2110 and a memory 2120 ; the memory 2120 stores data and programs, and is coupled to the processor 2110 .
- this figure is exemplary; other types of structures may be used in addition to or in place of this structure to implement telecommunication functions or other functions.
- the processor 2110 may be configured to execute a program to implement the methods described in the embodiments of the first to fourth aspects.
- the terminal device 2100 may further include: a communication module 2130 , an input unit 2140 , a display 2150 , and a power supply 2160 .
- the functions of the above components are similar to those in the prior art, and details are not repeated here. It is worth noting that the terminal device 2100 does not necessarily include all the components shown in FIG. 21, and the above components are not required; in addition, the terminal device 2100 may also include components not shown in FIG. There is technology.
- the embodiments of the present application further provide a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the methods described in the embodiments of the first to fourth aspects.
- the embodiments of the present application further provide a storage medium storing a computer program, wherein the computer program causes a terminal device to execute the methods described in the embodiments of the first to fourth aspects.
- the apparatuses and methods above in the present application may be implemented by hardware, or may be implemented by hardware combined with software.
- the present application relates to a computer-readable program that, when executed by logic components, enables the logic components to implement the above-described apparatus or constituent components, or causes the logic components to implement the above-described various methods or steps.
- the present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
- the method/apparatus described in conjunction with the embodiments of this application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
- one or more of the functional block diagrams shown in the figures and/or one or more combinations of the functional block diagrams may correspond to either software modules or hardware modules of the computer program flow.
- These software modules may respectively correspond to the various steps shown in the figure.
- These hardware modules can be implemented by, for example, solidifying these software modules using a Field Programmable Gate Array (FPGA).
- FPGA Field Programmable Gate Array
- a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
- a storage medium can be coupled to the processor, such that the processor can read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
- the processor and storage medium may reside in an ASIC.
- the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
- the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
- the functional blocks and/or one or more combinations of the functional blocks described in the figures can be implemented as a general-purpose processor, a digital signal processor (DSP) for performing the functions described in this application ), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof.
- DSP digital signal processor
- ASICs Application Specific Integrated Circuits
- FPGAs Field Programmable Gate Arrays
- One or more of the functional blocks and/or one or more combinations of the functional blocks described with respect to the figures can also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors processor, one or more microprocessors in communication with the DSP, or any other such configuration.
- a resource selection method applied to a first terminal equipment, the first terminal equipment sends side link data to a second terminal equipment, and the second terminal equipment is configured with side link discontinuous reception (SL DRX) ), the method includes:
- the first terminal device generates a first candidate resource set and a second candidate resource set, where the first candidate resource set is the selection window of the first terminal device and the second terminal device during the selection window.
- the set of all candidate resources in at least one consecutive SL DRX activation time overlapping time period;
- the first terminal device determines, respectively, candidate resources in the first candidate resource set that can be used for sidelink data transmission and candidate resources in the second candidate resource set that can be used for sidelink data transmission, to obtain a first candidate resource a subset of resources and a second subset of candidate resources;
- the first terminal device selects a resource for transmitting a first predetermined number of transmissions of sidelink data in the first candidate resource subset, and selects a resource for transmitting a sidelink in the second candidate resource subset Resource for the remaining number of transfers of data.
- the selection window of the first terminal device overlaps with the second terminal device in the first time period during the selection window or the next consecutive SLDRX activation time after the selection window starts. gather.
- the running period of the discontinuous reception retransmission timer (drx-RetransmissionTimer) on the side link of the second terminal device is not limited.
- the sub-selection window refers to the time period in which the selection window of the first terminal device and the continuous SL DRX activation time of the second terminal device during the selection window overlap.
- the set of candidate resources remaining after the first candidate resource set is removed from the selection window of the first terminal device
- the set of remaining candidate resources after the candidate resources before the predetermined time unit are removed from the selection window of the first terminal device
- the predetermined time unit refers to that the selection window of the first terminal device and the second terminal device are activated during the first selection window period or the next continuous SL DRX activation after the selection window starts.
- the physical layer of the first terminal device receives the transmission parameters for the first candidate resource set and the transmission parameters for the second candidate resource set notified by the upper layer of the first terminal device,
- the value of the transmission priority in the transmission parameter for the first candidate resource set is smaller than the value of the transmission priority in the transmission parameter for the second candidate resource set, and/or, for the first candidate resource set
- the number of subchannels used for transmission of side link data in one slot in the transmission parameters of the resource set is greater or less than the number of subchannels used for side link data in one slot in the transmission parameters for the second candidate resource set. The number of subchannels transmitted.
- the physical layer of the first terminal device receives the parameters notified by the high layer of the first terminal device and used to indicate the side link discontinuous reception configuration of the second terminal device, including at least one of the following:
- the physical layer of the first terminal device receives the indication information sent by the upper layer of the first terminal device and used to indicate the device type of the second terminal device, and/or used to indicate the transmission type (cast type) of the current service. type) indication information.
- the data packets of the side link data are priority
- CBR Channel Busy Ratio
- a resource selection method applied to a first terminal device, the first terminal device sending sidelink data to a second terminal device, the second terminal device being configured with discontinuous reception, the method comprising:
- the third candidate resource subset includes candidate resources except all candidate resources before a predetermined time unit within the selection window of the first terminal device, where the predetermined time unit refers to the The selection window overlaps with the first time slot of the second terminal device during the selection window or the next consecutive SL DRX activation time after the start of the selection window.
- the upper layer of the first terminal device delays the notification of the resource selection-related parameters for the third candidate resource set to the physical layer of the first terminal device until the next consecutive SL of the second terminal device at the current time A predefined time before the first slot of the DRX activation time.
- the number of time slots in which the selection window of the first terminal device overlaps with the first time during the selection window or the next consecutive SLDRX activation time after the start of the selection window of the second terminal device is less than a predetermined number threshold, then take the first time slot overlapping the selection window of the first terminal device and the second terminal device at the next continuous SL DRX activation time after the selection window starts as the predetermined time unit.
- a time slot is at least one of the following:
- the running period of the discontinuous reception retransmission timer (drx-RetransmissionTimer) on the side link of the second terminal device is not limited.
- a resource selection method applied to a first terminal device, wherein the first terminal device sends sidelink data to a second terminal device, and the second terminal device is configured with discontinuous reception, the method comprising:
- the first terminal device selects a sending resource for sending side link data from the subset of candidate resources
- the first terminal device first selects one transmission resource in the candidate resource subset, and the one transmission resource is in the selection window of the first terminal device and the continuous SL of the second terminal device during the selection window Select from the candidate resources of the time period in which the DRX activation time overlaps;
- the first terminal device selects the remaining transmission resources from the candidate resources in the candidate resource subset except the candidate resources before the predetermined time unit of the selection window of the first terminal device, and the predetermined time unit refers to the The first time slot that overlaps with the continuous SL DRX activation time of the second terminal device where the first selected transmission resource is located during the selection window of the first terminal device.
- the first candidate resource subset is a set of candidate resources in the first candidate set that can be used for sidelink data transmission, and the first candidate resource set is the selection window of the first terminal device and the second terminal. a set of all candidate resources in a time period in which at least one consecutive SLDRX activation time of the device overlaps during the selection window,
- the second candidate resource subset is a set of candidate resources that can be used for side link data transmission in the second candidate resource set, and the second candidate resource set is a selection window of the first terminal device excluding a predetermined time unit After the previous candidate resources, the set of remaining candidate resources, and the predetermined time unit refers to the first or the first between the selection window of the first terminal device and the second terminal device during the selection window select the first slot where the next consecutive SL DRX activation times overlap after the start of the selection window;
- the first terminal device selects the one transmission resource in the first candidate resource subset, and selects the remaining transmission resources in the second candidate resource subset.
- the number of time slots in which the selection window of the first terminal device overlaps with the first time during the selection window or the next consecutive SLDRX activation time after the start of the selection window of the second terminal device is less than a predetermined number threshold, then take the first time slot overlapping the selection window of the first terminal device and the second terminal device at the next continuous SL DRX activation time after the selection window starts as the predetermined time unit.
- the one transmission resource is a resource used for the initial transmission of the side link data, or the one transmission resource is not a resource used for the initial transmission of the side link data.
- the first terminal device selects the one among candidate resources for a time period in which the selection window of the first terminal device and the second terminal device overlap with the first consecutive SL DRX activation times during the selection window send resources;
- the candidate resource set does not include the candidate resource
- the next consecutive SL DRX of the first terminal device during the selection window of the first terminal device and the second terminal device during the selection window The one transmission resource is selected from the candidate resources of the time period whose activation time overlaps until the one transmission resource is selected.
- the running period of the discontinuous reception retransmission timer (drx-RetransmissionTimer) on the side link of the second terminal device is not limited.
- the second terminal device receives the side link data sent by the first terminal device at the continuous SL DRX activation time
- the second terminal device is at the active time at the time slot in which the first terminal device performs the next retransmission of the sidelink data.
- a terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method according to any one of supplementary notes 1 to 28.
- a communication system comprising a first terminal device and a second terminal device, the first terminal device sending side link data to the second terminal device, the second terminal device being configured with SL DRX, wherein :
- the first terminal device generates a first candidate resource set and a second candidate resource set, and respectively determines the candidate resources in the first candidate resource set that can be used for side link data transmission and the second candidate resource set.
- candidate resources for sending side link data obtain a first candidate resource subset and a second candidate resource subset, and select a resource for sending a first predetermined number of transmissions of side link data from the first candidate resource subset , and select the resources used for transmitting the remaining number of transmissions of side link data in the second candidate resource subset;
- the first candidate resource set is the selection window of the first terminal device and the second terminal A set of all candidate resources in a time period in which the device overlaps at least one consecutive SLDRX activation time during the selection window;
- the second terminal device receives the side link data at the configured continuous SL DRX activation time.
- a communication system comprising a first terminal device and a second terminal device, the first terminal device sending side link data to the second terminal device, the second terminal device being configured with SL DRX, wherein :
- the first terminal device generates a third candidate resource set, determines candidate resources in the third candidate resource set that can be used for side link data transmission, and obtains a third candidate resource subset, which is included in the third candidate resource subset Selecting resources for transmitting side link data; wherein the third candidate resource subset includes candidate resources except all candidate resources before a predetermined time unit within the selection window of the first terminal device, the predetermined time
- the unit refers to the first time that the selection window of the first terminal device and the second terminal device overlap the first one during the selection window or the next continuous SL DRX activation time after the selection window starts. time slot;
- the second terminal device receives the side link data at the configured continuous SL DRX activation time.
- a communication system comprising a first terminal device and a second terminal device, the first terminal device sending side link data to the second terminal device, the second terminal device being configured with SL DRX, wherein :
- the first terminal device selects a transmission resource for transmitting side link data in the candidate resource subset, wherein the first terminal device first selects a transmission resource in the candidate resource subset, and the one transmission resource is in the
- the selection window of the first terminal device and the second terminal device select among candidate resources for a time period in which consecutive SL DRX activation times during the selection window overlap;
- the remaining transmission resources are selected from the candidate resources before the predetermined time unit of the selection window of the first terminal device, where the predetermined time unit refers to the period between the selection window of the first terminal device and the the first time slot where the continuous SL DRX activation time of the second terminal equipment where the first selected transmission resource is located overlaps;
- the second terminal device receives the side link data at the configured continuous SL DRX activation time.
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Abstract
Description
Claims (20)
- 一种资源选择装置,配置于第一终端设备,所述第一终端设备向第二终端设备发送边链路数据,所述第二终端设备被配置了边链路非连续接收(SL DRX),所述装置包括:生成单元,其生成第一候选资源集合和第二候选资源集合,所述第一候选资源集合为所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的至少一个连续SL DRX激活时间重叠的时间段内所有候选资源的集合;确定单元,其分别确定所述第一候选资源集合中可用于边链路数据发送的候选资源以及所述第二候选资源集合中可用于边链路数据发送的候选资源,得到第一候选资源子集和第二候选资源子集;以及选择单元,其在所述第一候选资源子集中选择用于发送边链路数据的第一预定次数的传输的资源,并在所述第二候选资源子集中选择用于发送边链路数据的剩余次数的传输的资源。
- 根据权利要求1所述的装置,其中,所述第一候选资源集合为以下之一:所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的所有连续SL DRX激活时间重叠的时间段内的所有候选资源的集合;所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的第一个或所述选择窗开始后的下一个连续SL DRX激活时间重叠的时间段内所有候选资源的集合;所述第二候选资源集合为以下之一:所述第一终端设备的选择窗内除去所述第一候选资源集合以后剩余的候选资源的集合;所述第一终端设备的选择窗内所有候选资源的集合;所述第一终端设备的选择窗内除去所述第一候选资源集合以及所述第一终端设备的选择窗内预定时间单位之前的候选资源之后,剩余的候选资源的集合;所述第一终端设备的选择窗内除去预定时间单位之前的候选资源之后,剩余的候选资源的集合;其中,所述预定时间单位是指,所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的第一个或所述选择窗开始后的下一个连续SL DRX激活时间重叠的第一个时隙。
- 根据权利要求2所述的装置,其中,所述第二终端设备在所述选择窗期间的连续SL DRX激活时间是连续的至少一个时隙,所述连续的至少一个时隙是以下至少之一:所述第二终端设备的边链路上的非连续接收持续时间计时器(drx-OnDurationTimer)的运行期间;所述第二终端设备的边链路上的非连续接收非激活计时器(drx-InactivityTimer)的运行期间;所述第二终端设备的边链路上的非连续接收重传计时器(drx-RetransmissionTimer)的运行期间。
- 根据权利要求1所述的装置,其中,所述确定单元对确定所述第一候选资源子集使用的RSRP门限小于对确定所述第二候选资源子集使用的RSRP门限;和/或,所述确定单元对确定所述第一候选资源子集使用的发送优先级的值小于对确定所述第二候选资源子集使用的发送优先级的值;和/或,所述确定单元确定针对相同优先级的第一候选资源集合的上报比例大于或小于第二候选资源集合对应的值。
- 根据权利要求1所述的装置,其中,所述装置还包括:第一接收单元,其在所述第一终端设备的物理层接收所述第一终端设备的高层通知的针对所述第一候选资源集合的发送参数和针对所述第二候选资源集合的发送参数,其中,针对所述第一候选资源集合的发送参数中的发送优先级的值小于针对所述第二候选资源集合的发送参数中的发送优先级的值,和/或,针对所述第一候选资源集合的发送参数中的一个时隙中用于边链路数据的传输的子信道数大于或小于针对所述第二候选资源集合的发送参数中的一个时隙中用于边链路数据的传输的子信道数。
- 根据权利要求1所述的装置,其中,所述装置还包括:第二接收单元,其在所述第一终端设备的物理层接收所述第一终端设备的高层通知的用于指示所述第二终端设备的非连续接收配置的参数,和/或第三接收单元,其在所述第一终端设备的物理层接收所述第一终端设备的高层发送的用于指示所述第二终端设备的设备类型的指示信息,和/或,用于指示当前业务的发送类型(cast type)的指示信息,其中,用于指示所述第二终端设备的非连续接收配置的参数包括以下至少之一:边链路上的非连续接收持续时间计时器(drx-OnDurationTimer)的运行周期、偏移以及大小;边链路上的非连续接收非激活计时器(drx-InactivityTimer)的大小;边链路上的非连续接收混合自动重传往返时间计时器(drx-HARQ-RTT-Timer)的大小;边链路上的非连续接收重传计时器(drx-RetransmissionTimer)的大小。
- 根据权利要求1所述的装置,其中,所述选择单元在所述第一候选资源子集中选择的发送资源的个数是预定义的,或者由以下因素至少之一决定:所述边链路数据的发送次数总数和/或在当前传输块对应的PDB内所述第二终端设备处于非连续接收激活状态的时间长度或占用总长度的比值;所述边链路数据的数据包是优先级;测量的信道忙率(CBR)结果。
- 根据权利要求1所述的装置,其中,所述第一终端设备配置了部分感知,所述重叠是指所述连续SL DRX激活时间与所述第一终端设备的选择窗中所述第一终端设备的物理层所选择的候选时隙集合的重叠。
- 一种资源选择装置,配置于第一终端设备,所述第一终端设备向第二终端设备发送边链路数据,所述第二终端设备被配置了非连续接收,所述装置包括:生成单元,其生成第三候选资源集合;确定单元,其确定所述第三候选资源集合中可用于边链路数据发送的候选资源,得到第三候选资源子集;以及选择单元,其在所述第三候选资源子集中选择用于发送边链路数据的资源;其中,所述第三候选资源子集包含除了所述第一终端设备的选择窗内预定时间单位之前的所有候选资源以外的候选资源,所述预定时间单位是指,所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的第一个或所述选择窗开始后的下一个连续SL DRX激活时间重叠的第一个时隙。
- 根据权利要求9所述的装置,其中,所述生成单元生成的所述第三候选资源集合不包含所述第一终端设备的选择窗内所述预定时间单位之前的所有候选资源,或者所述确定单元将所述第一终端设备的选择窗内所述预定时间单位之前的所有候选资源从所述生成单元生成的所述第三候选资源集合中排除。
- 根据权利要求9所述的装置,其中,所述确定单元将所述选择窗的起始时间的时域位置推迟到所述预定时间单位。
- 根据权利要求9所述的装置,其中,所述装置还包括:发送单元,其在所述第一终端设备的高层向所述第一终端设备的物理层将针对所述第三候选资源集合的资源选择相关参数的通知延迟到所述第二终端设备在当前时间的下一个连续SL DRX激活时间的第一个时隙之前的预定义时间。
- 根据权利要求9所述的装置,其中,如果所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的第一个或所述选择窗开始后的下一个连续SL DRX激活时间重叠的时隙个数小于预定门限,则将所述第一终端设备的选择窗与所述第二终端设备在所述选择窗开始后的再下一个连续SL DRX激活时间重叠的第一个时隙作为所述预定时间单位。
- 根据权利要求9所述的装置,其中,所述第二终端设备在所述选择窗期间的连续SL DRX激活时间是连续的至少一个时隙,所述连续的至少一个时隙是以下至少之一:所述第二终端设备的边链路上的非连续接收持续时间计时器(drx-OnDurationTimer)的运行期间;所述第二终端设备的边链路上的非连续接收非激活计时器(drx-InactivityTimer)的运行期间;所述第二终端设备的边链路上的非连续接收重传计时器(drx-RetransmissionTimer)的运行期间。
- 根据权利要求9所述的装置,其中,所述第一终端设备配置了部分感知,所述重叠是指所述连续SL DRX激活时间与所述第一终端设备的选择窗中所述第一终端设备的物理层所选择的候选时隙集合的重叠。
- 一种资源选择装置,配置于第一终端设备,所述第一终端设备向第二终端设备发送边链路数据,所述第二终端设备被配置了非连续接收,所述装置包括:选择单元,其在候选资源子集中选择用于发送边链路数据的发送资源,其中,所述选择单元首先在所述候选资源子集中选择一个发送资源,所述一个发送资源在所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的连续SL DRX激活时间重叠的时间段的候选资源中进行选择;并且,所述选择单元在所述候选资源子集中除所述第一终端设备的选择窗的预定时间单位之前的候选资源中选择剩余的发送资源,所述预定时间单位是指,所述第一终端设备的所述选择窗期间与所述首先选择的发送资源所在的第二终端设备的连续SL DRX激活时间重叠的第一个时隙。
- 根据权利要求16所述的装置,其中,所述候选资源子集包括第一候选资源子集和第二候选资源子集,所述第一候选资源子集为第一候选集合中可用于边链路数据发送的候选资源的集合,所述第一候选资源集合为所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的至少一个连续SL DRX激活时间重叠的时间段内所有候选资源的集合,所述第二候选资源子集为第二候选资源集合中可用于边链路数据发送的候选资源的集合,所述第二候选资源集合为所述第一终端设备的选择窗内除去预定时间单位之前的候选资源之后,剩余的候选资源的集合,所述预定时间单位是指,所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的第一个或所述选择窗开始后的下一个连续SL DRX激活时间重叠的第一个时隙;所述选择单元在所述第一候选资源子集中选择所述一个发送资源,在所述第二候选资源子集中选择所述剩余的发送资源。
- 根据权利要求16所述的装置,其中,如果所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的第一个或所述选择窗开始后的下一个连续SL DRX激活时间重叠的时隙个数小于预定门限,则将所述第一终端设备的选择窗与所述第二终端设备在所述选择窗开始后的再下一个连续SL DRX激活时间重叠的第一个时隙作为所述预定时间单位。
- 根据权利要求16所述的装置,其中,所述选择单元在所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的第一个连续SL DRX激活时间重叠的时间段的候选资源中选择所述一个发送资源;如果所述候选资源集合中不包括所述候选资源,则所述选择单元在所述第一终端设备的选择窗与所述第二终端设备在所述选择窗期间的下一个连续SL DRX激活时间重叠的时间段的候选资源中选择所述一个发送资源,直到选择了所述一个发送资源为止。
- 根据权利要求16所述的装置,其中,所述第一终端设备配置了部分感知,所述重叠是指所述连续SL DRX激活时间与所述第一终端设备的选择窗中物理层选择的候选时隙集合的重叠。
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